Portable respiration system

Abstract

To provide a portable respiration system.SOLUTION: A portable respiration system includes a housing, a partitioning material, a flow rate sensor, an elastic member, hardware, an air blower, and a flow rate limitation part. By arranging the partitioning material inside the housing, the system is partitioned into an upper chamber and a lower chamber, the flow rate sensor is located in the upper chamber and the elastic member is located in the lower chamber. The hardware is fixed to the lower chamber and defines an intake flow path, a lateral flow path, a transport flow path, and an air blow flow path. The air blower is arranged inside the elastic member and is used to receive an air flow from the transport flow path to generate a positive pressure air flow. The flow rate limitation part includes a plurality of tubular bodies and is located inside the lateral flow path. The portable respiration system is compact, lightweight, and portable, and has a flow rate monitoring function, and can improve comfort and therapeutic effect by adjustment of the flow rate of the air flow according to needs of a user.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a portable breathing system, and more particularly to a portable breathing system with a flow sensor. [Background technology]

[0002] Portable breathing systems can provide effective therapy by supplying the required airflow to patients under corresponding settings according to the patient's needs. Based on the set flow rate, portable breathing systems perform corresponding controls and adjustments, such as adjusting the strength and pressure of the airflow, to improve comfort. For some patients, pressure that is too high can cause discomfort, while pressure that is too low cannot effectively maintain smooth breathing, preventing effective therapy or even preventing the occurrence of respiratory arrest.

[0003] Therefore, whether a portable breathing system can accurately control airflow is related to the therapeutic effect and comfort of wearing the system, and also affects the energy utilization efficiency of the system. Summary of the Invention [Problem to be solved by the invention]

[0004] One object of the present invention is to improve the therapeutic effectiveness and comfort of a portable respiratory system that is small and lightweight.

[0005] Another object of the present invention is to provide a portable breathing system with flow sensing capabilities. [Means for solving the problem]

[0006] To achieve the above and other objects, the present invention proposes a portable breathing system including a housing, a divider, a flow sensor, an elastic member, hardware, a blower, and a flow restriction. The partition material is disposed within the housing and separates the upper chamber from the lower chamber, the flow sensor is disposed within the upper chamber, the elastic member is disposed within the lower chamber, the hardware is fixed to the lower chamber via the elastic member and the housing and defines an intake flow path, a lateral flow path, a transport flow path and an air blowing flow path, the lateral flow path is connected between the intake flow path and the transport flow path, the blower is disposed within the elastic member and is used to receive airflow from the transport flow path to generate a positive pressure airflow and send the airflow to the air blowing flow path, the flow restriction unit is disposed within the lateral flow path and includes a plurality of pipes extending along the lateral flow path, and the hardware further includes a first detection pipe located upstream of the flow restriction unit and a second detection pipe located downstream of the flow restriction unit, and the first detection pipe and the second detection pipe are each connected to the flow sensor.

[0007] According to some embodiments of the present invention, the first and second detector tubes each have a lower orifice, and the two lower orifices are higher than an upper edge of the tallest one of the plurality of tubes.

[0008] According to some embodiments of the present invention, the flow restriction section is positioned below the air blowing flow path of the hardware, and defines a first buffer space between the lower orifice of the first detection tube and the tops of the multiple tube bodies, and defines a second buffer space between the lower orifice of the second detection tube and the tops of the multiple tube bodies, and the flow velocity of the air flow in the first buffer space and the second buffer space is slower than the flow velocity of the air flow at the tube mouth of each of the tube bodies.

[0009] According to some embodiments of the present invention, the first buffer space and the second buffer space are arranged asymmetrically with respect to the central axis of the air blowing passage.

[0010] According to some embodiments of the present invention, each of the pipes extends a first length from directly below the central axis of the air outlet flow path in a direction away from the intake flow path, and a second length in a direction toward the intake flow path, the first length being longer than the second length.

[0011] According to some embodiments of the present invention, a vertical distance between the two lower orifices and an upper edge of the tallest of the plurality of tubes is a first distance, and the first distance is greater than or equal to half the inner diameter of the tube.

[0012] According to some embodiments of the present invention, the first and second detector tubes project downward into the lateral flow channel.

[0013] According to some embodiments of the present invention, the flow rate restricting section includes an airtight member that covers the outside of the plurality of pipe bodies and secures the plurality of pipe bodies, forming an airtight seal between the airtight member and the outer wall of the air blowing flow path.

[0014] According to some embodiments of the present invention, the flow restriction is removably disposed in the lateral flow channel.

[0015] According to some embodiments of the present invention, the elastic member includes an upper air guide cover and a lower vibration reduction cover, the upper air guide cover and the blower define an input flow path, the input flow path is connected to the transport flow path to guide airflow to the blower, and the upper air guide cover has a plurality of flow guide protrusions protruding downward.

[0016] According to some embodiments of the present invention, the upper air guide cover includes an exhaust hole for dissipating thermal energy from a heat exhaust pipe of the fan.

[0017] According to some embodiments of the present invention, the hardware includes a plurality of guide plates and spacers protruding into the intake flow path, the guide plates dividing the front portion of the intake flow path into a plurality of intake passages, the spacers being located in the middle portion of the intake flow path, and the bottom edge of the spacers being closer to the bottom of the housing than the bottom edges of the guide plates.

[0018] According to some embodiments of the present invention, the lower vibration reduction cover comprises an upwardly protruding positioning wall and a water shielding wall, the positioning wall covers at least a portion of the blower, and the positioning wall comprises a cutout portion to accommodate the electrical components of the blower, and the water shielding wall is arranged on the outer periphery of the cutout portion.

[0019] According to some embodiments of the present invention, the portable breathing system further includes a circuit board, a light-emitting element, a button element, a light-shielding cover, and a light guide, wherein the circuit board is disposed in the upper chamber, the light-emitting element is disposed on the circuit board, the button element is disposed on the circuit board, the light-shielding cover covers the light-emitting element and includes a through-hole, and the light guide is disposed in the through-hole and is used to guide light.

[0020] According to some embodiments of the present invention, the through hole comprises a first portion and a second portion, the first portion is for accommodating the light guide, the second portion is for covering each light-emitting element, and the inner diameter of the second portion is larger than the inner diameter of the first portion.

[0021] According to some embodiments of the present invention, the light-shielding cover further includes a protrusion means, the underside of which corresponds to the button element on the circuit board, and a pressing member is disposed on the outer surface of the housing, and has a recessed groove for fitting to the bottom structure of the pressing member corresponding to the top surface of the protrusion means.

[0022] According to some embodiments of the present invention, the recessed groove is a cross-shaped positioning groove, and the bottom structure is a cross-shaped positioning protrusion that fits into the cross-shaped positioning groove.

[0023] According to some embodiments of the present invention, the bottom surface of the pressing member is provided with a support wall arranged around the periphery of the bottom structure to enhance stability when the pressing member is pressed down.

[0024] According to some embodiments of the present invention, a stopper is provided on the bottom surface of the pressing member, and a recess for accommodating the stopper is provided in the light-shielding cover. [Effects of the Invention]

[0025] Therefore, the portable breathing system according to the embodiment of the present invention has the characteristics of small size, light weight, and portability, and realizes a compact design by forming the configuration and arrangement of the accommodation space and the flow path through the structural form of the partition material, elastic member, hardware, and flow restrictor. In addition, the portable breathing system also has a flow monitoring function, and can adjust the airflow rate or control different air supply modes according to the user's needs, thereby improving the comfort and user experience of the breathing system and helping to achieve better therapeutic effects. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic three-dimensional view of a portable breathing system in accordance with an embodiment of the present invention; [Figure 2] FIG. 2 is a schematic exploded view of the portable breathing system of FIG. 1. [Figure 3] FIG. 2 is a partial schematic view of the portable breathing system according to the embodiment of FIG. 1. [Figure 4] FIG. 2 is a schematic cross-sectional view taken along line AA in FIG. [Figure 5a] FIG. 1 is a schematic three-dimensional diagram of the hardware of a portable breathing system according to an embodiment of the present invention. [Figure 5b] FIG. 1 is a schematic side view of the hardware of a portable breathing system according to an embodiment of the present invention. [Figure 6] FIG. 2 is a schematic cross-sectional view taken along line BB in FIG. [Figure 7] 1 is a schematic three-dimensional view of an elastic member in the portable breathing system according to the present embodiment. FIG. [Figure 8] FIG. 1 is a partial exploded view of a flow restriction, hardware, lower vibration reduction cover, and lower housing of a portable breathing system according to an embodiment of the present invention. [Figure 9] FIG. 1 is a schematic diagram of a blower and a lower vibration-reducing cover in a portable breathing system according to an embodiment of the present invention. [Figure 10] 1 is a schematic diagram of a blower and an upper air guide cover in a portable breathing system according to an embodiment of the present invention. FIG. [Figure 11] FIG. 10 is a schematic view of a blower and an upper air guide cover in a portable breathing system according to another embodiment of the present invention. [Figure 12] FIG. 1 is a partially exploded view of a portable breathing system in accordance with an embodiment of the present invention. [Figure 13] FIG. 13 is a partial cross-sectional view of FIG. [Figure 14] FIG. 1 is a schematic diagram of a light-shielding cover in a portable breathing system according to an embodiment of the present invention. [Figure 15] 1 is a schematic view of an upper housing having a pressing member in a portable breathing system according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to fully understand the objects, features and effects of the present invention, the present invention will be described in detail below in combination with specific embodiments and accompanying drawings.

[0028] The terms "include," "contain," "comprise," or any other similar terms in the description herein are not limited to only those features set forth in the description, but may also include other features that are not expressly set forth but are normally inherent in the component, structure, device, system, part, or area.

[0029] Similar ordinal terms, such as "first" or "second" in the description herein, are used to distinguish or indicate the relationship between the same or similar elements or structures, and do not necessarily imply a spatial order to these elements, structures, parts, or areas. It should be understood that in some situations or configurations, the ordinal terms may be used interchangeably without affecting the practice of the invention.

[0030] The term "one" or "one" in the descriptions herein describes a component, structure, device, system, part, or area, etc. This is used for convenience of description only and provides a general meaning for the scope of the present invention. Therefore, unless otherwise clearly indicated, these descriptions should be understood to include one or at least one, and the singular should be understood to include the plural at the same time.

[0031] In an embodiment of the present invention, the portable breathing system is exemplified by a compact, lightweight, and portable CPAP unit. The portable breathing system can be used in a wide range of environments to meet the needs of users, such as outdoors, traveling, work, or camping. Therefore, to achieve compact size, light weight, and portability, the configuration of components and the arrangement of flow paths are limited to a limited internal space, resulting in a compact design.

[0032] Referring simultaneously to Figures 1 to 4, Figure 1 is a schematic three-dimensional view of a portable breathing system in one embodiment of the present invention, Figure 2 is a schematic exploded view of the portable breathing system of Figure 1, Figure 3 is a partial schematic view of the portable breathing system according to the embodiment of Figure 1, and Figure 4 is a schematic cross-sectional view along line AA of Figure 1.

[0033] As shown in FIG. 1, the portable breathing system 1 of this embodiment includes a housing 100, which may include an upper housing 101 and a lower housing 102. After the upper housing 101 and the lower housing 102 are assembled, an internal space and a plurality of windows communicating with the outside, such as an air intake port IN and an air outlet OT, can be defined.

[0034] As shown in FIG. 2, the portable breathing system 1 of this embodiment further includes a circuit board 900, a partition member 200, an elastic member 400, hardware 500, a blower 600, and a flow restrictor 700.

[0035] The divider 200 is disposed within the housing 100 and divides the interior space of the housing 100 into an upper chamber and a lower chamber. The upper chamber can be used to place circuits and electrical assemblies corresponding to the functional pressing members on the upper housing 101 for user operation and control. For example, a circuit board 900 can be disposed in the upper chamber, and a flow sensor 300 is provided on the circuit board 900 and used to detect the flow rate of the airflow. The lower chamber can be used to place components for generating a positive pressure airflow, and these components are used to establish a flow path for the airflow. For example, the elastic member 400, hardware 500, blower 600, and flow restrictor 700 are disposed in the lower chamber.

[0036] The elastic member 400 holds the blower 600 therein, with a portion of the elastic member 400 being interposed between the partition material 200 and the blower 600 and a portion being interposed between the blower 600 and the housing, thereby positioning the blower 600 and isolating the blower 600 from the rigid partition material 200 and the housing 100, thereby reducing vibration and noise. The hardware 500 is fixed to the lower chamber via the elastic member 400 and the housing 100, and the method of fixing will be described later.

[0037] 3, the hardware 500 is used to define the flow paths of the portable breathing system 1, including an inhalation flow path 510, a lateral flow path 520 (FIG. 4), a transport flow path 530, and an air outlet flow path 540, with the lateral flow path 520 communicating between the inhalation flow path 510 and the transport flow path 530. The blower 600 is disposed within the elastic member 400 and is used to generate a positive pressure air flow.

[0038] In this embodiment, the airflow path is as follows: First, gas enters housing 100 through intake port IN of housing 100, travels along intake flow path 510, lateral flow path 520, and transport flow path 530, and then enters the intake port of blower 600. Blower 600 receives the airflow from transport flow path 530 and generates a positive pressure airflow. The pressurized airflow is discharged from the air outlet of blower 600, enters air outlet flow path 540, then exits from air outlet OT of housing 100, and is sent to a breathing mask (not shown) worn by a user through a connecting pipe. Specifically, referring to FIG. 3, in this embodiment, the airflow enters the intake air flow path 510 from the intake port IN, as shown by airflow path FA1, then the airflow is lifted, as shown by airflow path FA2, and then the airflow descends again, as shown by airflow path FA3, and enters the lateral air flow path 520, then the airflow flows within the lateral air flow path 520, as shown by airflow path FB, and the airflow is lifted within the transport air flow path 530, as shown by airflow path FC, then the airflow flowing out of the transport air flow path 530 flows to the blower 600, as shown by airflow path FD, and finally the airflow flowing out of the blower 600 exits the air outlet air flow path 540, as shown by airflow path FE.

[0039] 4, the flow restriction 700 is disposed within the lateral flow passage 520, and includes a plurality of tubes 710 extending along the lateral flow passage 520. The flow restriction 700 is used to form a laminar airflow through the tubes 710, thereby generating a pressure drop, so that the flow sensor 300 can measure the flow rate of the airflow.

[0040] Referring to Figures 4, 5(a) and 5(b) together, Figure 5(a) is a schematic three-dimensional view of the hardware of the portable breathing system according to this embodiment, and Figure 5(b) is a schematic side view of the hardware of the portable breathing system according to this embodiment.

[0041] The hardware 500 further includes a first detector tube 550 and a second detector tube 560, the first detector tube 550 being located on the upstream side 700A of the flow restriction section 700, and the second detector tube 560 being located on the downstream side 700B of the flow restriction section 700. The first detector tube 550 and the second detector tube 560 are respectively connected to the flow sensor 300, and the flow sensor 300 calculates the flow rate by acquiring the pressure values ​​on the upstream side 700A and the downstream side 700B. In this embodiment, the first detector tube 550 and the second detector tube 560 are pre-formed through-holes or pipe structures on the hardware 500 and are connected to the flow sensor 300 via hoses 550A and 560A, respectively. However, the present invention is not limited to this, and a sufficiently long pipe may be integrally formed on the hardware 500 and extend directly to the mounting portion of the sensing head of the flow sensor 300.

[0042] Therefore, in the portable breathing system according to the embodiment of the present invention, the configuration of the first and second detector pipes 550 and 560 within the hardware 500 allows the flow sensor 300 located in the upper chamber to measure the pressure on the upstream side 700A and downstream side 700B of the flow restriction portion 700, thereby obtaining the fluid flow rate within the lateral flow channel 520. This allows the portable breathing system to be compact and lightweight, and also has a flow rate monitoring function. Based on the flow rate monitoring function, the portable breathing system can more effectively adjust the airflow rate according to different user needs or different users, or provide various airflow control modes, thereby improving comfort and user experience. Furthermore, accurate flow rate control can also provide better therapeutic effects.

[0043] 4 to 6, FIG. 6 is a schematic cross-sectional view taken along line BB in FIG.

[0044] As shown in Figures 4 to 6, the hardware 500 includes a first detector pipe 550 and a second detector pipe 560. The first detector pipe 550 and the second detector pipe 560 can protrude downward into the lateral flow path 520. The first detector pipe 550 and the second detector pipe 560 include lower orifices 551 and 561, respectively, and the lower orifice 551 of the first detector pipe 550 and the lower orifice 561 of the second detector pipe 560 are higher than the upper edge 710A of the tallest of these pipe bodies 710 of the flow restriction section 700.

[0045] In the height direction, there is a vertical distance between either one of the lower orifices 551 and 561 and the upper edge 710A of the highest one of the tubes 710, without the lower orifice being flush with or aligned with the upper edge 710A of the highest one of the tubes 710. In this way, the lower orifice 551 of the first detecting tube 550 and the lower orifice 561 of the second detecting tube 560 are not located in an unstable airflow path with a high flow rate, and therefore the airflow received by the flow sensor 300 is also relatively stable, improving the stability and accuracy of flow measurement in the portable breathing system.

[0046] As an example, the vertical distance between the two lower orifices 551, 561 and the upper edge 710A of the tallest one of the tubular bodies 710 is a first distance D1 (FIG. 4), which is greater than or equal to half the inner diameter of the tubular body 710. For example, when the overall appearance of the portable breathing system 1 has a length and width of 95 mm or less and a height of 65 mm or less, the first distance D1 can be designed to be 3 to 15 mm or greater than 15 mm.

[0047] To achieve a compact configuration that reduces the overall volume of the portable breathing system 1, the flow rate restrictor 700 can be disposed below the air outlet flow path 540 of the hardware 500, and the first and second detection pipes 550, 560 extend on both sides of the air outlet flow path 540. A first buffer space S1 is defined between the lower orifice 551 of the first detection pipe 550 and the top of the pipe 710, and a second buffer space S2 is defined between the lower orifice 561 of the second detection pipe 560 and the top of the pipe 710. The airflow velocity in the first buffer space S1 is slower than the airflow velocity at the pipe openings on the upstream side 700A of each pipe 710. The airflow velocity in the second buffer space S2 is slower than the airflow velocity at the pipe openings on the downstream side 700B of each pipe 710.

[0048] Referring again to FIG. 4, the first buffer space S1 and the second buffer space S2 are arranged asymmetrically with respect to the central axis 540L of the air blowing flow path 540, and the shapes of the first buffer space S1 and the second buffer space S2 are non-mirror-similar to achieve an optimized configuration according to the distribution of the flow field on the upstream side 700A and the downstream side 700B of the flow restriction section 700.

[0049] For example, each tube 710 may extend a first length L1 from directly below the central axis 540L of the air outlet flow path 540 in a direction away from the intake flow path 510, and a second length L2 in a direction toward the intake flow path 510, the first length L1 being longer than the second length L2, such that the shortest distance between the lower orifice 561 of the second detecting pipe 560 and the top of the tube 710 is shorter than the shortest distance between the lower orifice 551 of the first detecting pipe 550 and the top of the tube 710. For example, when the overall external dimensions of the portable breathing system 1 are 95 mm or less in length and width, and 65 mm or less in height, the first length L1 may be approximately 13 mm, and the second length L2 may be approximately 11 mm.

[0050] 6, in this embodiment, the flow restriction 700 can be, for example, a honeycomb channel, i.e., the tubes 710 have a hexagonal cross section. The number and cross-sectional area of ​​the tubes 710 are related to the area through which fluid can pass and are designed based on the cross-sectional area and shape of the lateral channel 520.

[0051] The area of ​​the fluid that can pass through the flow rate restricting section 700 of this embodiment (i.e., the total area of ​​the through holes of the pipe body 710) occupies about 25 to 30% of the cross-sectional area of ​​the lateral flow channel 520. As an example, the cross-sectional area of ​​the lateral flow channel 520 is 336 mm 2 The total area of ​​the through holes of the pipe 710 (total cross-sectional area through which the airflow passes) is 92.8 mm 2 The flow rate restricting unit 700 of this embodiment may include 4 to 12 pipes 710 each having a hexagonal cross section, and the pipes 710 are regular hexagons with an inscribed circle having a radius of 1.73 mm. Of course, the cross-sectional area shape of the pipes is not limited to this and may be other polygonal shapes.

[0052] Referring to FIG. 7, a schematic three-dimensional view of an elastic member in the portable breathing system according to this embodiment is shown.

[0053] The elastic member 400 may include an upper air guide cover 410 and a lower vibration damping cover 420, and the upper air guide cover 410 and the lower vibration damping cover 420 may be made of silicone or other elastic materials and have elasticity and softness. The upper air guide cover 410 and the blower 600 define an input channel 610, which is connected to the transport channel 530 and guides the airflow sent from the transport channel 530 to the blower 600, and the upper air guide cover 410 has a plurality of downwardly protruding air guide protrusions 411 to guide and straighten the airflow entering the input channel 610.

[0054] Referring again to Figures 5(a) and 5(b), the hardware 500 has a plurality of guide plates 511 and spacers 512 that protrude into the intake flow path 510, and the plurality of guide plates 511 divide the front portion of the intake flow path 510 into a plurality of intake passages 513. The spacers 512 are provided in the middle portion of the intake flow path 510, and the bottom edge 512A of the spacers 512 is closer to the bottom of the housing 100 (the bottom housing wall of the lower housing 102) than the bottom edge 511A of the guide plates 511, thereby lengthening the tortuous path of the airflow and making it less likely that noise from the internal motor will be transmitted to the outside.

[0055] When the blower 600 is activated, the negative pressure created in the intake passage 510 induces airflow into the intake passage 510. Referring to FIGS. 3 to 5, the airflow enters the intake port IN of the housing 100, flows downward while being guided by the spacer 512 and the guide plate 511, passes below the bottom edge 512A of the spacer 512, i.e., passes through a passage formed between the spacer 512 and the lower vibration-reducing cover 420 of the elastic member 400, and then flows into the first opening 570 (FIGS. 3 and 5(a)) on the hardware 500; this portion of the passage is the intake passage 510. After flowing into the first opening 570, the airflow enters the lateral passage 520.

[0056] 2 and 8, FIG. 8 is a partial exploded view of a flow restrictor, hardware, a lower vibration-reducing cover, and a lower housing of a portable breathing system according to one embodiment of the present invention.

[0057] The flow restriction 700 may be removable or integral to the portable breathing system 1. In this embodiment, the flow restriction 700 is designed to be removably disposed in the lateral flow path 520. The flow restriction 700 is not integrally formed with the hardware 500 or the housing 100, but is a separate, removable component.

[0058] The flow rate restricting unit 700 includes an airtight member 720 that covers the outside of the tubes 710 to secure all of the tubes 710 in place, and the flow rate restricting unit 700 is positioned between the air outlet flow path 540 of the hardware 500 and the bottom surface of the lower casing 102 of the housing 100. An airtight seal is formed between the airtight member 720 and the outer wall of the air outlet flow path 540, so that the airflow in the lateral flow path 520 can only pass through the tubes 710 of the flow rate restricting unit 700. At the same time, the airtight member 720 also provides an airtight seal between the lower half of the air outlet flow path 540 and the lower casing 102.

[0059] 7 and 9, FIG. 9 is a schematic diagram of a blower and a lower vibration-reducing cover in a portable breathing system according to one embodiment of the present invention.

[0060] Lower vibration reduction cover 420 may include a positioning wall 421 protruding upward and a water shielding wall 422. Positioning wall 421 covers at least a portion of blower 600 from the side, and positioning wall 421 restricts blower 600 to a specific position. As shown in Figures 7 and 9, extending positioning wall 421 defines a position for accommodating blower 600. Positioning wall 421 may be provided with a notch 421A for accommodating electric section 630 of blower 600. Electric section 630 may be a connection port electrically connected to circuit board 900 (see Figures 12 and 13) in the upper chamber via a conductor (not shown) so that blower 600 obtains power and provides electric signals from circuit board 900 for controlling blower 600. Water shielding wall 422 is disposed on the outer periphery of cutout portion 421A and has, for example, a ridge structure extending to the adjacent side of cutout portion 421A, and in the event that moisture infiltrates into housing 100, water shielding wall 422 can further prevent the moisture from infiltrating into blower 600. Recess 423 can also be provided between water shielding wall 422 and cutout portion 421A of positioning wall 421, and if a larger amount of moisture infiltrates, the moisture can be collected in recess 423, thereby further reducing the risk of water infiltrating into blower 600. Positioning wall 421 and water shielding wall 422 may have a structure in which they are integrally molded with lower vibration reduction cover 420.

[0061] Generally speaking, the lower vibration reduction cover 420 can form a tall, nearly seamless annular wall on the left, rear, and right sides of the blower 600 through an integrally molded structure, and by assembling the hardware 500 to the front of the blower 600, the hardware 500 and the annular wall form a watertight structure surrounding the blower 600. Because the lower vibration reduction cover 420 and the hardware 500 are assembled together, there is inevitably a gap that may allow water to enter. The lower vibration reduction cover 420 is provided with a positioning wall 421 and a watertight wall 422, and by adding a notch 421A, it is possible to effectively prevent liquid from entering the blower 600 from the sides and bottom.

[0062] Referring to FIG. 10, a schematic diagram of a blower and an upper air guide cover in a portable breathing system according to an embodiment of the present invention.

[0063] The upper air guide cover 410 may have exhaust holes 412 through which the exhaust pipe 620 of the fan 600 dissipates thermal energy. As shown in Fig. 10, the upper air guide cover 410 has convection grooves 413 and convection holes 414 formed near the exhaust holes 412, and the convection holes 414 connect the convection grooves 413 to a chamber in which the fan 600 is disposed. The convection grooves 413 are recessed from the upper air guide cover 410, and the convection holes 414 penetrate the upper air guide cover 410 from the bottom of the convection grooves 413. When the middle partition member 200 and the upper air guide cover 410 are assembled, the top surface of the convection grooves 413 is covered by the bottom surface of the middle partition member 200, and the convection grooves 413 can communicate with the outside only via the exhaust holes 412 and the convection holes 414. Heat exhaust pipe 620 of blower 600 extends into convection groove 413 through exhaust hole 412, and when blower 600 operates, negative pressure is created in the chamber in which blower 600 is disposed, and the negative pressure draws air into convection groove 413 through convection hole 414, causing forced convection in convection groove 413, and the hot air that has undergone heat exchange in heat exhaust pipe 620 is introduced into the chamber in which blower 600 is disposed, thereby forming a circulation system. After entering the chamber in which blower 600 is disposed, the hot air is discharged from air outlet flow path 540 by the operation of blower 600 to prevent heat accumulation within blower 600.

[0064] Referring to FIG. 11, this is a schematic diagram of a blower and an upper air guide cover in a portable breathing system according to another embodiment of the present invention.

[0065] 11 , in this embodiment, the convection groove 413′ of the upper air guide cover 410 is recessed from the upper air guide cover 410 and extends to the upper air guide cover 410, the exhaust hole 412 and the convection hole 414′ each pass through the upper air guide cover 410, and the convection groove 413′ is used to connect the exhaust hole 412 and the convection hole 414′. When the middle partition member 200 and the upper air guide cover 410 are assembled, the top surface of the convection groove 413′ is covered with the bottom surface of the middle partition member 200, and the convection groove 413′ can communicate with the outside only via the exhaust hole 412 and the convection hole 414′. The heat exhaust pipe 620 of the blower 600 extends to the exhaust hole 412, thereby connecting the convection groove 413′, the convection holes 414′, and the intake passage 510. When the blower 600 is operating, the negative pressure created in the intake passage 510 draws in air from the convection groove 413′ via the convection holes 414′, and simultaneously draws in air from the heat exhaust pipe 620 of the blower 600 via the exhaust hole 412. The hot air that has undergone heat exchange in the heat exhaust pipe 620 is introduced into the intake passage 510 via the convection groove 413′ and added to the air flow entering the transport passage 530. To prevent heat accumulation within the blower 600, the hot air is rapidly discharged from the air outlet passage 540 as the blower 600 operates.

[0066] 12 and 13, FIG. 12 is a partially exploded view of a portable breathing system according to one embodiment of the present invention, and FIG. 13 is a partially cross-sectional view of FIG.

[0067] 12, the portable breathing system 1 of this embodiment may include a circuit board 900, a light-emitting element 1000, a button element 1100, a light-shielding cover 1200, and a light guide 1300. The circuit board 900 is disposed in the upper chamber and interposed between the upper housing 101 and the partition member 200, and the flow sensor 300 is provided on the circuit board 900.

[0068] The light emitting element 1000 and the button element 1100 are disposed on the circuit board 900. The light emitting element 1000 may be, for example, an LED element for indicating the status or control mode of the portable breathing system. The button element 1100 is pressed to generate an electrical signal, causing the light emitting element 1000 to emit light according to a control command generated by lines and electronic components on the circuit board 900. The light-shielding cover 1200 covers the light emitting element 1000 and includes a through-hole 1210. The light guide 1300 is disposed within the through-hole 1210 to guide light, so that the light emitted from the light emitting element 1000 can be concentrated and guided to a specific position through the light guide 1300. For example, the light-shielding cover 1200 may be made of a silicone material, and the light guide 1300 may be made of a PC material or a PMMA material.

[0069] As shown in FIG. 13, in the light-shielding cover 1200, the through hole 1210 has a first portion 1211 and a second portion 1212, the first portion 1211 is used to accommodate the light guide 1300, the second portion 1212 is used to cover each light-emitting element 1000, and the inner diameter of the second portion 1212 is larger than the inner diameter of the first portion 1211.

[0070] Referring to Figures 14 and 15, Figure 14 is a schematic diagram of a light-shielding cover in a portable breathing system according to one embodiment of the present invention, and Figure 15 is a schematic diagram of an upper housing having a pressing member in a portable breathing system according to one embodiment of the present invention.

[0071] 14 and 15, the light-shielding cover 1200 further includes a protrusion 1220, the underside of which corresponds to the button element 1100 on the circuit board 900. The pressing member 110 is disposed on the outer surface of the housing 100, and the top surface of the protrusion 1220 has a groove 1221, which is used to mate with the corresponding bottom structure 111 of the pressing member 110. The bottom structure 111 of the pressing member 110 fits into the groove 1221 of the protrusion 1220, preventing the pressing member 110 from rattling when pressed. For example, the groove 1221 is a cross-shaped positioning groove, and the bottom structure 111 is a cross-shaped positioning ridge that fits into the cross-shaped positioning groove. The cross-shaped matching structure provides positioning in four directions (front, back, left, and right) and is more stable than a linear, concave-convex matching structure.

[0072] The pressing member 110 may have a support wall 112 on its bottom surface. The support wall 112 is arranged around the bottom structure 111, and when the pressing member 110 is pressed down, the support wall 112 also supports the surface of the light-shielding cover 1200 at the same time, increasing the contact surface area between the pressing member 110 and the light-shielding cover 1200, thereby improving the stability of the pressing member 110 when pressed down.

[0073] A stopper 113 may also be provided on the bottom surface of the pressing member 110, and a recess 1230 for accommodating the stopper 113 may be provided on the light-shielding cover 1200, thereby further increasing the stability of the pressing member 110 while it is being pressed down. In addition, the pressing member 110 is an independent structure that can move downward relative to the housing 100 and be separated from the housing 100, but the cross-shaped matching groove 1221, the bottom structure 111, the stopper 113, and the recess 1230 can reduce the degree of rattling of the pressing member 110 relative to the housing 100.

[0074] The portable breathing system according to the embodiment of the present invention is characterized by its small size, light weight, and portability, and realizes a compact design by forming the configuration and arrangement of the accommodation space and the flow path through the structural forms of the partition material, elastic member, hardware, and flow restrictor. The portable breathing system also has a flow monitoring function, and can adjust the airflow rate or control different air supply modes according to the user's needs, thereby improving the comfort and user experience of the breathing system and helping to achieve better therapeutic effects.

[0075] Although various aspects and embodiments of the present invention have been disclosed above, those skilled in the art will understand that the various aspects and embodiments are merely illustrative and do not limit the present invention, and should not be construed as limiting the scope of the present invention. Furthermore, after reading this specification, those skilled in the art will recognize that other aspects and embodiments are possible without departing from the scope of the present invention. In other words, all modifications and replacements that have equivalent effects to these aspects and embodiments are included within the scope of the present invention. Therefore, the scope of the present invention should be governed by the definition of the claims. [Explanation of symbols]

[0076] 1 Portable Breathing System 100 Housing 101 Upper housing 102 Lower housing 110 Pressing member 111 Bottom structure 112 Supporting wall 113 Stopper 200 Partition material 300 Flow Sensor 400 Elastic member 410 Upper air guide cover 411 Flow guiding protrusion 412 Exhaust vent 413,413' Convection groove 414,414' Convection hole 420 Lower vibration reduction cover 421 Positioning Wall 421A Notch 422 Impermeable wall 423 Recess 500 Hardware 510 Intake passage 511 Guide plate 511A,512A bottom edge 512 Spacer 513 Intake passage 520 Lateral flow channel 530 Transport Channel 540 Air outlet channel 540L Central axis of air outlet passage 550 Detector Tube No. 1 550A hose 551 Lower orifice of first detector tube 560 Second Detector Tube 560A Hose 561 Lower orifice of second detector tube 600 Blower 610 Input channel 620 Heat exhaust pipe 630 Electrical Department 700 Flow restriction section 700A Upstream of the flow restriction 700B Downstream of the flow restriction 710 Body 710A Upper edge 720 Airtight materials 900 Circuit Board 1000 light emitting elements 1100 Button Elements 1200 Light-shielding cover 1210 Through hole 1211 Part 1 1212 Part 2 1220 Projection means 1221 Groove 1230 recess 1300 Light guide D1 First distance FA1, FA2, FA3, FB, FC, FD, FE: Air flow path S1 1st buffer space S2 2nd buffer space L1 First length L2 Second length IN intake OT air outlet

Claims

1. Housing and a middle partition member disposed within the housing and separating an upper chamber from a lower chamber; a flow sensor disposed in the upper chamber; an elastic member disposed in the lower chamber; hardware fixed to the lower chamber via the elastic member and the housing, and defining an intake passage, a lateral passage, a transport passage, and an air blow-out passage, the lateral passage being connected between the intake passage and the transport passage; a blower disposed within the elastic member for receiving the air flow from the transport passage, generating a positive pressure air flow, and sending the air flow to the air blowing passage; a flow restriction portion disposed within the lateral flow passage and including a plurality of pipes extending along the lateral flow passage; 1. A portable breathing system comprising: The portable breathing system, wherein the hardware further includes a first detector tube located upstream of the flow restriction and a second detector tube located downstream of the flow restriction, the first detector tube and the second detector tube each connected to the flow sensor.

2. 2. The portable breathing system according to claim 1, wherein the first and second sensing tubes each have a lower orifice, and the two lower orifices are higher than the upper edge of the tallest of the plurality of tubes.

3. 3. The portable breathing system according to claim 2, wherein the flow restriction section is disposed below the air blowing flow path of the hardware, and defines a first buffer space between the lower orifice of the first sensing tube and the tops of the plurality of tubes, and defines a second buffer space between the lower orifice of the second sensing tube and the tops of the plurality of tubes, and the flow velocity of the air flow in the first buffer space and the second buffer space is slower than the flow velocity of the air flow at the tube opening of each of the tubes.

4. The portable breathing system according to claim 3 , wherein the first buffer space and the second buffer space are arranged asymmetrically with respect to a central axis of the air outlet flow path.

5. 4. The portable breathing system according to claim 3, wherein each of the tubular bodies extends a first length from directly below the central axis of the air blowing passage in a direction away from the intake passage and a second length in a direction toward the intake passage, the first length being longer than the second length.

6. 5. The portable breathing system of claim 4, wherein the vertical distance between the two lower orifices and the upper edge of the tallest of the plurality of tubes is a first distance, the first distance being greater than or equal to half the inner diameter of the tube.

7. 4. The portable breathing system of claim 3, wherein the first and second sensing tubes project downward into the lateral flow channel.

8. 4. The portable breathing system according to claim 3, wherein the flow rate restricting section includes an airtight member that covers the outside of the plurality of tubular bodies and fixes the plurality of tubular bodies, and forms an airtight seal between the airtight member and an outer wall of the air blowing flow path.

9. The portable breathing system of claim 3 , wherein the flow restriction is removably disposed in the lateral flow path.

10. 4. The portable breathing system according to claim 3, wherein the elastic member includes an upper air guide cover and a lower vibration reduction cover, the upper air guide cover and the blower define an input flow path, the input flow path is connected to the transport flow path to guide airflow to the blower, and the upper air guide cover has a plurality of downwardly protruding flow guide protrusions.

11. The portable breathing system according to claim 10, wherein the upper air guide cover is provided with an exhaust hole for dissipating heat energy from the exhaust pipe of the blower.

12. 4. The portable breathing system of claim 3, wherein the hardware includes a plurality of guide plates and spacers protruding into the inhalation flow path, the plurality of guide plates dividing the front portion of the inhalation flow path into a plurality of inhalation passages, the spacers being provided in an intermediate portion of the inhalation flow path, and the bottom edge of the spacers being closer to the bottom of the housing than the bottom edges of the plurality of guide plates.

13. 11. The portable breathing system of claim 10, wherein the lower vibration reduction cover comprises an upwardly protruding positioning wall and a water shielding wall, the positioning wall covering at least a portion of the blower, and the positioning wall comprising a cutout portion for accommodating an electrical component of the blower, the water shielding wall being disposed on an outer periphery of the cutout portion.

14. a circuit board disposed within the upper chamber; a light emitting element disposed on the circuit board; a button element disposed on the circuit board; a light-shielding cover that covers the light-emitting element and includes a through hole; a light guide provided in the through hole for guiding light; 4. The portable breathing system of claim 3, further comprising:

15. 15. The portable breathing system of claim 14, wherein the through-hole comprises a first portion and a second portion, the first portion being for accommodating the light guide and the second portion being for covering each light-emitting element, and the inner diameter of the second portion being larger than the inner diameter of the first portion.

16. 15. The portable breathing system according to claim 14, wherein the light-shielding cover further comprises a protrusion means, a bottom of which corresponds to the button element on the circuit board, and a pressing member is disposed on the outer surface of the housing, the pressing member having a recess for fitting to a bottom structure of the pressing member corresponding to a top surface of the protrusion means.

17. 17. The portable breathing system according to claim 16, wherein the recessed groove is a cross-shaped positioning groove, and the bottom structure is a cross-shaped positioning ridge that fits into the cross-shaped positioning groove.

18. 17. The portable breathing system according to claim 16, wherein the bottom surface of the pressing member is provided with a support wall arranged around the periphery of the bottom structure to enhance stability when the pressing member is pressed down.

19. 19. The portable breathing system according to claim 18, wherein a stopper is provided on the bottom surface of the pressing member, and a recess for accommodating the stopper is provided in the light-shielding cover.

Images