A water tank assembly and a breathing machine

Abstract

The application relates to a water tank assembly and a breathing machine, the water tank assembly comprising a water tank and a tank cover, the water tank having a containing cavity containing liquid and being in communication with the outside, the water tank being provided with an air inlet channel for being in communication with a main machine of the breathing machine; the tank cover is arranged on the water tank to block the containing cavity, the tank cover being provided with a sound attenuation flow channel, one end of the sound attenuation flow channel being in communication with the air inlet channel, the other end being in communication with the containing cavity, and the tank cover being provided with an air outlet interface in communication with the containing cavity; airflow generated by a fan of the main machine of the breathing machine can flow through the air inlet channel, the sound attenuation flow channel, the containing cavity and the air outlet interface in sequence. The water tank assembly of the application reduces the noise generated by airflow between the main machine and the water tank by arranging the sound attenuation flow channel on the tank cover, thereby reducing the influence of the noise of the breathing machine on the sleep of a user.

Description

Technical Field

[0001] This application relates to the field of ventilator technology, and in particular to a water tank assembly and a ventilator. Background Technology

[0002] In modern clinical medicine, a ventilator is a device that artificially replaces spontaneous ventilation, preventing and treating respiratory failure and reducing complications. Among these, a bilevel ventilator (BP) is used to treat respiratory disorders caused by poor lung function, lung failure, sleep apnea syndrome, etc. The concept of a BP is to provide the patient with a pre-set higher inspiratory pressure and a lower expiratory pressure, automatically switching between them during the patient's breathing process. The ventilator consists of a main unit and a water tank assembly. A heat-conducting component is located at the bottom of the water tank, and a heating element is located on the main unit, in contact with the heat-conducting component. The heat-conducting component evenly transfers heat from the heating element to the liquid in the water tank, humidifying and heating the liquid. When the ventilator is working, the fan in the main unit draws in air, and the airflow generated by the fan flows through the water tank, thus utilizing the water tank to humidify the airflow. Currently, the airflow between the main unit and the water tank in existing ventilators generates significant noise, which can disrupt the user's sleep, as ventilators are typically placed nearby. Utility Model Content

[0003] Therefore, it is necessary to provide a water tank assembly and a ventilator to address the issue of noise affecting users when using a ventilator.

[0004] A water tank assembly, the water tank assembly comprising:

[0005] A water tank having a cavity for containing liquid and communicating with the outside, the water tank having an air intake channel for communicating with the main unit of a ventilator;

[0006] A lid is placed over the water tank to seal the receiving cavity. The lid has a silencing channel, one end of which is connected to the air inlet channel and the other end of which is connected to the receiving cavity. The lid also has an air outlet that is connected to the receiving cavity. The airflow generated by the fan of the main unit of the ventilator can flow sequentially through the air inlet channel, the silencing channel, the receiving cavity, and the air outlet.

[0007] In one embodiment, the silencing channels are provided in multiple ways, and the outlet directions of the multiple silencing channels have an included angle.

[0008] In one embodiment, the lid includes:

[0009] A cover, on which the air outlet is provided;

[0010] A mounting plate is connected to the cover. The mounting plate is provided with an air inlet, a first exhaust outlet and a second exhaust outlet. The air inlet is connected to the air inlet channel and the first exhaust outlet is connected to the receiving cavity and the air outlet interface.

[0011] Multiple enclosures are disposed between the mounting plate and the cover, and the multiple enclosures form a limiting channel. One end of the limiting channel is connected to the air inlet, and the other end is connected to the second exhaust port. The mounting plate, the limiting channel, and the cover form the silencing flow channel.

[0012] In one embodiment, the muffler channel includes a first section communicating with the air inlet and a second section communicating with the second exhaust outlet, wherein the included angle between the first section and the second section is an obtuse angle.

[0013] In one embodiment, the lid further includes a first sealing element fitted onto the outer peripheral surface of the mounting plate, the first sealing element being used to fill the gap between the lid and the mounting plate.

[0014] In one embodiment, the silencing channel is provided with a silencing hole that communicates with the receiving cavity.

[0015] In one embodiment, the water tank includes a heat-conducting component and a shell. The shell has an opening and a through hole. The opening connects the shell to the outside. The heat-conducting component includes a heat-conducting part and a connecting part arranged circumferentially around the heat-conducting part. The connecting part abuts against the inner wall of the shell. The heat-conducting part passes through the through hole and extends away from the tank cover.

[0016] In one embodiment, the water tank further includes a second seal, which is sleeved on the connecting portion and sandwiched between the connecting portion and the inner wall of the housing.

[0017] In one embodiment, the housing includes an upper shell and a lower shell connected together, the lower shell having the through hole, the upper shell having the opening, and the lid covering the side of the upper shell opposite to the lower shell.

[0018] This application also provides a ventilator, including a main unit and a water tank assembly as described in any of the above claims, wherein a fan is provided inside the main unit, and the air outlet of the fan is connected to the air inlet channel.

[0019] The aforementioned water tank assembly, by covering the water tank with a lid, seals the water tank's cavity, preventing liquid contamination from contact with the outside environment. Furthermore, a silencer channel is provided on the lid, with one end connected to the air intake channel and the other end connected to the cavity. This means that gas discharged from the main unit flows into the silencer channel after passing through the water tank's air intake channel for noise reduction, and then flows into the water tank's cavity for humidification. Because the lid has an air outlet connected to the cavity, the humidified gas can flow out through both the cavity and the outlet. In other words, the gas is first silenced in the silencer channel before humidification, and then flows out through the outlet. This water tank assembly, by incorporating a silencer channel on the lid, reduces the noise generated by gas flow between the main unit and the water tank, thereby minimizing the impact of ventilator noise on the user's sleep. Attached Figure Description

[0020] Figure 1 An exploded view of the water tank assembly provided in an embodiment of this application.

[0021] Figure 2 An exploded view of the box lid provided in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the structure of the water tank provided in an embodiment of this application.

[0023] Figure 4 An exploded view of the water tank provided in an embodiment of this application.

[0024] In the picture:

[0025] 100. Water tank; 110. Receiving cavity; 120. Air intake channel;

[0026] 200. Lid; 210. Cover body; 220. Mounting plate; 221. Air inlet; 222. First exhaust port; 223. Second exhaust port; 230. Enclosure panel; 240. Silencing hole;

[0027] 300. Silencer flow channel; 310. First section; 320. Second section;

[0028] 400. Air outlet;

[0029] 500. First sealing element;

[0030] 600. Thermally conductive component; 610. Thermally conductive part; 620. Connecting part;

[0031] 700, shell; 710, upper shell; 711, opening; 720, lower shell; 721, through hole;

[0032] 800. Second seal. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] This application provides a water tank assembly, such as Figures 1 to 4 As shown, the water tank assembly includes a water tank 100 and a lid 200. The water tank 100 has a receiving cavity 110 that contains liquid and is connected to the outside. The water tank 100 is provided with an air intake channel 120 for connecting to the main unit of the ventilator. The lid 200 covers the water tank 100 to seal the receiving cavity 110. The lid 200 is provided with a silencing channel 300. One end of the silencing channel 300 is connected to the air intake channel 120, and the other end is connected to the receiving cavity 110. The lid 200 is provided with an air outlet 400 that connects to the receiving cavity 110. The airflow generated by the fan of the main unit of the ventilator can flow sequentially through the air intake channel 120, the silencing channel 300, the receiving cavity 110, and the air outlet 400.

[0040] The aforementioned water tank assembly, by covering the water tank 100 with a tank cover 200, seals the receiving cavity 110 of the water tank 100, preventing the liquid inside the receiving cavity 110 from communicating with the outside and causing liquid contamination. Furthermore, a silencer channel 300 is provided on the tank cover 200, with one end connected to the air intake channel 120 and the other end connected to the receiving cavity 110. That is, the gas discharged from the main unit flows into the silencer channel 300 for silencer treatment after passing through the air intake channel 120 of the water tank 100, and then flows into the receiving cavity 110 of the water tank 100 for humidification. Since the tank cover 200 is provided with an air outlet 400 connected to the receiving cavity 110, the humidified gas can flow out through the receiving cavity 110 and the air outlet 400. In other words, the gas can first be silenced in the silencer channel 300 before humidification, and then flow out through the air outlet 400 after humidification. The water tank assembly of this application reduces the noise generated by the flow of gas between the main unit and the water tank 100 by providing a sound-absorbing flow channel 300 on the tank cover 200, thereby reducing the impact of ventilator noise on the user's sleep.

[0041] Specifically, such as Figure 2 As shown, the box cover 200 includes a cover body 210, a mounting plate 220, and multiple surrounding plates 230. The cover body 210 is provided with an air outlet 400. The mounting plate 220 is connected to the cover body 210 and is provided with an air inlet 221, a first exhaust port 222, and a second exhaust port 223. The air inlet 221 is connected to the air inlet channel 120, and the first exhaust port 222 is connected to the receiving cavity 110 and the air outlet 400. Multiple surrounding plates 230 are disposed between the mounting plate 220 and the cover body 210. The multiple surrounding plates 230 form a limiting channel. One end of the limiting channel is connected to the air inlet 221, and the other end is connected to the second exhaust port 223. The mounting plate 220, the limiting channel, and the cover body 210 form a noise reduction channel 300.

[0042] By setting multiple surrounding plates 230 between the cover 210 and the mounting plate 220, a limiting channel is formed between the multiple surrounding plates 230, and then the upper end of the limiting channel is sealed by the cover 210 and the mounting plate 220 (e.g., Figure 2 (as shown at the upper end) and lower end (as shown at the lower end) Figure 2The mounting plate 220, the limiting channel, and the cover 210 form a silencing flow channel 300, facilitating airflow. An air inlet 221 is then provided on the mounting plate 220, connecting the air intake channel 120 and one end of the silencing flow channel 300. A first exhaust port 222 is provided on the mounting plate 220, connecting the silencing flow channel 300 and the receiving cavity 110, allowing airflow passing through the silencing flow channel 300 to flow into the receiving cavity 110. Furthermore, a second exhaust port 223 is provided on the mounting plate 220, connecting the receiving cavity 110 and the air outlet 400, allowing the silenced airflow in the receiving cavity 110 to be discharged through the second exhaust port 223 to the air outlet 400. In other words, the airflow provided by the fan of the main unit passes through the air intake channel 120, the air inlet 221, the silencer channel 300, the first exhaust port 222, the receiving cavity 110, the second exhaust port 223, and the air outlet 400 in sequence.

[0043] Specifically, such as Figure 2 As shown, the muffler duct 300 includes a first section 310 connected to the air inlet 221 and a second section 320 connected to the second exhaust outlet 223. The angle between the first section 310 and the second section 320 is an obtuse angle. By dividing the muffler duct 300 into two sections and limiting the range of the angle between the first section 310 and the second section 320, the outlet direction of the muffler duct 300 is also limited.

[0044] Specifically, such as Figure 2 As shown, multiple silencer channels 300 are provided, and the outlet directions of the multiple silencer channels 300 are at an angle. Multiple silencer channels 300 are provided, one end of which is connected to the air intake channel 120, and the other end of which is connected to the receiving cavity 110. The airflow flowing into the cover 200 through the air intake channel 120 is split in the multiple silencer channels 300, allowing them to accommodate more airflow and thus improving silencer efficiency. Furthermore, the outlet directions of the multiple silencer channels 300 are at an angle, meaning that the multiple silencer channels 300 face different directions toward the receiving cavity 110, thereby reducing the possibility of airflow accumulation within the receiving cavity 110.

[0045] Specifically, in this embodiment, two noise-reducing channels 300 are provided. In other embodiments, the number of noise-reducing channels 300 is set according to actual operational needs.

[0046] It should be noted that among the multiple silencing channels 300, each silencing channel 300 includes a first section 310 and a second section 320, and the included angle between the first section 310 and the second section 320 is an obtuse angle.

[0047] Specifically, such as Figure 2As shown, the cover 200 also includes a first sealing element 500 sleeved on the outer peripheral surface of the mounting plate 220. The first sealing element 500 is used to seal the gap between the cover 210 and the mounting plate 220. By sleeved on the mounting plate 220, the gap between the cover 210 and the mounting plate 220 is sealed, thereby sealing the silencer flow channel 300 and reducing the amount of gas flowing into the receiving cavity 110 without being silenced.

[0048] Specifically, such as Figure 2 As shown, the silencing channel 300 is provided with a silencing hole 240 communicating with the receiving cavity 110. The silencing hole 240 in the silencing channel 300 allows airflow to enter the receiving cavity 110 not only through the first exhaust port 222, but also through the silencing hole 240. The silencing hole 240 not only provides multiple ways for airflow to enter the receiving cavity 110, but also serves to relieve pressure, preventing excessive pressure within the silencing channel 300 due to excessive airflow.

[0049] More specifically, such as Figure 2 As shown, multiple silencing channels 300 are provided, and each silencing channel 300 is provided with a corresponding silencing hole 240.

[0050] Furthermore, such as Figure 3 and Figure 4 As shown, the water tank 100 includes a heat-conducting component 600 and a housing 700. The housing 700 has an opening 711 and a through hole 721. The opening 711 connects the housing 700 to the outside. The heat-conducting component 600 includes a heat-conducting part 610 and a connecting part 620 arranged circumferentially around the heat-conducting part 610. The connecting part 620 abuts against the inner wall of the housing 700. The heat-conducting part 610 passes through the through hole 721 and extends away from the tank cover 200. By providing the opening 711 on the housing 700, the receiving cavity 110 is connected to the outside, facilitating the injection or discharge of liquid into the receiving cavity 110. And by providing the through hole 721 on the housing 700, the heat-conducting part 610 of the heat-conducting component 600 passes through the through hole 721 and extends away from the tank cover 200, i.e., in... Figure 3 and Figure 4 From this angle, the heat-conducting part 610 passes through the through hole 721 and extends downward, thereby facilitating its contact with the heating component installed on the main unit.

[0051] It should be noted that the shell 700 and the heat-conducting component 600 together form the receiving cavity 110.

[0052] Specifically, such as Figures 3 to 4As shown, the water tank 100 also includes a second sealing element 800, which is sleeved on the connecting portion 620 and sandwiched between the connecting portion 620 and the inner wall of the housing 700. By sleeved on the connecting portion 620, the gap between the connecting portion 620 and the inner wall of the receiving cavity 110 is sealed, preventing liquid in the receiving cavity 110 of the water tank 100 from flowing out to the outside through the gap between the connecting portion 620 and the inner wall of the receiving cavity 110.

[0053] More specifically, the second seal 800 is a structural component made of silicone. When the ventilator is working, the heat transfer component of the main unit transfers heat to the heat conductor 600. Part of the heat in the heat conductor 610 of the heat conductor 600 is transferred to the second seal 800. The second seal 800 expands when heated, absorbs the deformation through its own elasticity, and returns to its original shape during the cooling process, thereby resisting the damage caused by repeated heating and cooling cycles and extending the service life of the water tank 100.

[0054] Specifically, such as Figure 3 and Figure 4 As shown, the housing 700 includes an upper shell 710 and a lower shell 720 connected to each other. The lower shell 720 is provided with a through hole 721, and the upper shell 710 is provided with an opening 711. The cover 200 is provided on the side of the upper shell 710 opposite to the lower shell 720. The opening 711 on the upper shell 710 facilitates communication between the receiving cavity 110 and the outside, and the through hole 721 on the lower shell 720 allows the heat-conducting part 610 of the heat-conducting component 600 to pass through.

[0055] Specifically, the upper shell 710 and the lower shell 720 are connected by ultrasonic welding. Ultrasonic welding not only effectively encapsulates the second seal 800, but also ensures a tight fit between the upper shell 710, the lower shell 720, and the second seal 800, forming a highly efficient seal.

[0056] This application also provides a ventilator, including a main unit and a water tank assembly as described above. The main unit contains a fan, and the fan's outlet is connected to the air inlet channel 120. By connecting the fan of the main unit to the air inlet channel 120 of the water tank 100, the gas supplied by the fan is first silenced within the silencer channel 300 before being humidified, and then flows out through the outlet port 400. This reduces the noise generated by the gas flowing between the main unit and the water tank 100, thereby reducing the impact of ventilator noise on the user's sleep.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 specification.

[0058] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water tank assembly, characterized in that, The water tank assembly includes: The water tank (100) has a receiving cavity (110) for containing liquid and communicating with the outside world, and the water tank (100) is provided with an air intake channel (120) for communicating with the main unit of the ventilator. A lid (200) is placed over the water tank (100) to seal the receiving cavity (110). The lid (200) is provided with a silencing channel (300). One end of the silencing channel (300) is connected to the air inlet channel (120), and the other end is connected to the receiving cavity (110). The lid (200) is provided with an air outlet (400) connected to the receiving cavity (110). The airflow generated by the fan of the main unit of the ventilator can flow through the air inlet channel (120), the silencing channel (300), the receiving cavity (110), and the air outlet (400) in sequence.

2. The water tank assembly according to claim 1, characterized in that, The silencing channels (300) are provided in multiple ways, and the outlet directions of the multiple silencing channels (300) have an angle.

3. The water tank assembly according to claim 1, characterized in that, The lid (200) includes: A cover (210) is provided with the air outlet (400); A mounting plate (220) is connected to the cover (210). The mounting plate (220) is provided with an air inlet (221), a first exhaust port (222) and a second exhaust port (223). The air inlet (221) is connected to the air inlet channel (120), and the first exhaust port (222) is connected to the receiving cavity (110) and the air outlet (400). Multiple enclosures (230) are disposed between the mounting plate (220) and the cover (210). The multiple enclosures (230) form a limiting channel. One end of the limiting channel is connected to the air inlet (221), and the other end is connected to the second exhaust port (223). The mounting plate (220), the limiting channel, and the cover (210) form the silencing flow channel (300).

4. The water tank assembly according to claim 3, characterized in that, The silencer channel (300) includes a first section (310) communicating with the air inlet (221) and a second section (320) communicating with the second exhaust port (223), wherein the included angle between the first section (310) and the second section (320) is an obtuse angle.

5. The water tank assembly according to claim 3, characterized in that, The cover (200) also includes a first sealing element (500) sleeved on the outer peripheral surface of the mounting plate (220), the first sealing element (500) being used to fill the gap between the cover (210) and the mounting plate (220).

6. The water tank assembly according to claim 1, characterized in that, The silencing channel (300) is provided with a silencing hole (240) that communicates with the receiving cavity (110).

7. The water tank assembly according to claim 1, characterized in that, The water tank (100) includes a heat-conducting component (600) and a shell (700). The shell (700) is provided with an opening (711) and a through hole (721). The opening (711) connects the shell (700) to the outside. The heat-conducting component (600) includes a heat-conducting part (610) and a connecting part (620) arranged circumferentially around the heat-conducting part (610). The connecting part (620) abuts against the inner wall of the shell (700). The heat-conducting part (610) passes through the through hole (721) and extends away from the tank cover (200).

8. The water tank assembly according to claim 7, characterized in that, The water tank (100) further includes a second sealing element (800), which is sleeved on the connecting part (620) and sandwiched between the connecting part (620) and the inner wall of the shell (700).

9. The water tank assembly according to claim 7, characterized in that, The housing (700) includes an upper shell (710) and a lower shell (720) connected to each other. The lower shell (720) is provided with the through hole (721), and the upper shell (710) is provided with the opening (711). The cover (200) is placed on the side of the upper shell (710) away from the lower shell (720).

10. A ventilator, characterized in that, The system includes a main unit and a water tank assembly as described in any one of claims 1-9, wherein the main unit is provided with a fan and the air outlet of the fan is connected to the air inlet channel (120).

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