Ventilator

Abstract

Disclosed in the present application is a ventilator. A bottom housing is provided with an air inlet communicated with the external atmosphere. A partition plate is mounted on the bottom housing, the partition plate being provided with a fan accommodation cavity, and a fan body being mounted inside the fan accommodation cavity. A top cover plate is assembled on the partition plate. The ventilator is configured such that: a first chamber is formed between the partition plate and the bottom housing; the space between the partition plate and the upper cover plate is divided by the fan body into a second chamber in front of an air inlet of the fan body and a flow monitoring chamber behind an air outlet of the fan body; and the partition plate is provided with an airflow channel communicating the first chamber and the second chamber. The present solution enables a more compact and reliable overall structure of the ventilator, reduced parts of the ventilator, and an ingenious and reasonable structure, thereby simplifying the assembling, and improving the assembling efficiency and the assembling quality. Therefore, the present application improves the safety and reliability for patients using the ventilator, and as a medical appliance, the ventilator achieves more safe and stable use for patients.

Description

Ventilator

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 10, 2023, with application number "202311167360.6" and invention name "Ventilator", the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of medical devices, and in particular to a ventilator. Background Art

[0003] As an effective means of artificially replacing spontaneous ventilation function, ventilators have been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support therapy and emergency resuscitation. They occupy a very important position in the field of modern medicine. They are a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0004] Currently, the main components of ventilators on the market are the main unit and the humidifier. When the ventilator is operating, the controller detects signals of airway obstruction in the patient, appropriately pressurizes the air in the ventilator's airway, and then uses a blower in the main unit to blow the air into the humidifier. After being humidified by the humidifier, the air is then delivered to the user's airway, forcing the airway to open, providing continuous ventilation and maintaining adequate oxygen supply.

[0005] In the process of implementing this application, the applicant found that the existing ventilators still have at least the following deficiencies:

[0006] 1. The air circuit module and the main body bottom shell are only assembled. There are still many redundant pores inside the bottom shell that are not used. As a result, the original air circuit module occupies a larger space, the internal structure of the ventilator is relatively loose, and the overall volume of the ventilator is increased. There are hidden dangers such as reduced use effect during use.

[0007] 2. A separate air path is required for the air coming in from outside the ventilator, and a separate air path or pipeline is also required for the flow detection function. The large number of parts increases the difficulty of assembly and affects the assembly efficiency and quality.

[0008] 3. The designed corresponding air flow channel relies on multiple optimization designs of the air path module part, which makes it difficult to achieve the goals of stable flow and low noise.

[0009] In view of this, how to research and design a ventilator to solve the problems existing in the above-mentioned prior art has become the subject to be studied and solved in this application.

[0010] Summary of the Invention

[0011] The purpose of this application is to provide a ventilator.

[0012] To achieve the above-mentioned purpose, the present application proposes a ventilator, which has:

[0013] A bottom shell having an air inlet communicating with the outside atmosphere;

[0014] A partition, the partition being assembled on the bottom shell, the partition being provided with a fan accommodating cavity, and the fan body being installed in the fan accommodating cavity;

[0015] an upper cover plate, the upper cover plate being assembled on the partition plate;

[0016] The ventilator is configured as follows: a first chamber is formed between the partition and the bottom shell, the partition and the upper cover are divided by the fan body into a second chamber located in front of the air inlet of the fan body and a flow monitoring chamber located behind the air outlet of the fan body, and an air flow channel connecting the first chamber and the second chamber is formed on the partition.

[0017] The relevant contents of this application are explained as follows:

[0018] 1. In the above technical solution of the present application, the ventilator is mainly designed to have a structure with a bottom shell, a partition, and an upper cover plate, and a first chamber is formed between the partition and the bottom shell, and the partition and the upper cover plate are divided by the fan body into a second chamber located in front of the air inlet of the fan body and a flow monitoring chamber located behind the air outlet of the fan body, and an air flow channel connecting the first chamber and the second chamber is formed on the partition, so that the air path module originally installed separately in the bottom shell of the ventilator is optimized and simplified, so that the bottom shell of the ventilator can also become a part of the air path module, so that the first chamber is formed between the bottom shell and the partition plate, and the air entering the air path module of the ventilator enters the first chamber from the air inlet and then enters the second chamber formed by the partition and the upper cover plate from the air flow channel, and is then blown out by the fan body. After reaching the flow monitoring chamber, it enters the humidification tank. Through such a flow channel design, the first chamber formed between the bottom shell and the partition is used as the intake flow channel of the intake flow path. The airflow can be stabilized and the airflow noise can be reduced without setting up additional corresponding pipelines. The excess space in the original bottom shell can be fully utilized. At the same time, a second chamber and a flow monitoring chamber are formed between the partition and the upper cover. The airflow monitoring function can be realized by relying on this arrangement without setting up additional pipelines, making the overall structure of the ventilator more compact and reliable, the overall parts of the ventilator are reduced, and the structure is ingenious and reasonable, which simplifies assembly, improves assembly efficiency and assembly quality, and thus improves the safety and reliability of patients when using the ventilator. As a medical product, the ventilator can make patients use it safer and more stable.

[0019] 2. In the above technical solution, a soft rubber seal is provided on the local surface and outer edge of the partition through integral mold forming, and the soft rubber seal is configured to act at least on the connection between the partition and the bottom shell, and the connection between the partition and the upper cover plate. The soft rubber seal formed with the partition is used to seal the first chamber, the second chamber and the flow monitoring chamber between the various mating components, which can effectively reduce the number of additional parts and improve assembly efficiency and quality.

[0020] 3. In the above technical solution, the soft rubber seal extends a plurality of ribs that are arranged around the fan accommodating cavity of the partition, and the plurality of ribs constitute an elastic bracket for installing the fan body to elastically limit the fan body. The elastic bracket extends from the soft rubber seal. First, no additional components are required, and second, the elasticity and friction of the soft rubber components themselves can be used to elastically limit the fan body, so that the fan body and the partition can have a good soft connection and buffering. The design is ingenious and can effectively reduce the vibration of the fan body. At the same time, sufficient friction and limitation can also ensure the firm installation of the fan body, reduce vibration and noise; for the flow monitoring chamber, it is also formed by the soft rubber seal and the air outlet connector, partition and upper cover of the fan body. The air outlet connector of the fan body also cooperates with the soft rubber seal, which also has the effect of reducing vibration and noise.

[0021] 4. In the above technical solution, a first side panel for isolating the first chamber is provided on the lower side of the partition, and a second side panel is provided on the bottom shell corresponding to the first side panel. A sealing strip extends from the soft rubber seal and is arranged on the outside of the first side panel. After the partition is assembled in the bottom shell, the first side panel, the sealing strip and the second side panel are tightly matched to isolate the first chamber; the first side panel and the second side panel are arranged obliquely downward toward the inside, so as to realize the isolation of the first chamber according to the structure of the partition and the bottom shell itself, and the sealing strip extended from the soft rubber seal is used for integrated sealing, without the need to set up additional sealing components, thereby reducing assembly steps, saving labor time, and also improving the sealing effect.

[0022] 5. In the above technical solution, an annular sealing ring is extended from the sealing strip of the soft rubber seal and is located on the circular bottom surface of the partition. The circular bottom surface of the partition is tightly connected to the bottom shell through the sealing ring, so that the first chamber forms an annular air inlet flow channel, so that the air entering the first chamber can flow around the annular air inlet flow channel and then enter the second chamber from the air flow channel. The annular air inlet flow channel will make the airflow smoother and also have a certain effect on noise reduction. At the same time, the bottom seal is also drawn out from the soft rubber seal integrated with the partition, which is easy to assemble and has a good sealing effect.

[0023] 6. In the above technical solution, the upper cover is provided with a first sampling port connected to the first chamber, a second sampling port connected to the second chamber, and a third sampling port connected to the flow monitoring chamber. Monitoring sensors are provided on the circuit board of the ventilator corresponding to the first sampling port, the second sampling port, and the third sampling port. The sampling ports are arranged in this way, so that the airflow at this position is stable and the measurement is accurate. At the same time, the sampling ports are integrated with the upper cover, and the sampling ports are directly connected to the first chamber, the second chamber, and the flow monitoring chamber. The monitoring sensors are also connected to the sampling ports to monitor the airflow parameters such as high pressure, low pressure, and flow, avoiding the arrangement of additional monitoring gas circuits and reducing the number of parts such as several joints and pipelines.

[0024] 7. In the above technical solution, the upper cover is provided with a sunken area, and the first sampling port, the second sampling port, and the third sampling port are arranged in the sunken area, so as to make the structure of the air path monitoring part of the ventilator more compact and effectively control the overall volume of the ventilator.

[0025] 8. In the above technical solution, the circuit board is provided with a transfer seal corresponding to the sunken area where the first sampling port, the second sampling port, and the third sampling port are located. One transfer seal is used to perform an integrated sealing transfer between the first sampling port, the second sampling port, the third sampling port and the corresponding monitoring sensor, which requires fewer parts and is easy to assemble.

[0026] 9. In the above technical solution, the first sampling port, the second sampling port, and the third sampling port are joint pipe structures integrally formed with the upper cover plate. A sampling extension pipe for connecting the first chamber and the first sampling port is opened on the partition plate to form an air flow channel for each sampling port. The set joint pipe structure can more conveniently monitor the docking of the sensor and the sealing transfer of the transfer seal.

[0027] 10. In the above technical solution, there are multiple sunken areas, and the additional sunken areas are used to accommodate electronic components arranged downward on the lower surface of the circuit board. Here, the additional refers to other sunken areas except the sunken area where the first sampling port, the second sampling port, and the third sampling port are set, so that the protruding electronic components on the circuit board can be accommodated downward in the sunken area of ​​the upper cover, thereby reducing the upper and lower heights of the ventilator.

[0028] 11. In the present application, a steering duct is provided at the air flow channel on the partition, and the steering duct is provided with a first steering port located in the second chamber and a second steering port located in the first chamber, and a laminar flow element is provided in the steering duct; the overall structure of the steering duct is on the partition and the upper cover and is located between the second chamber and the first chamber. The air entering the first chamber from the air inlet enters the first end of the steering duct along the inlet flow channel, and enters the second chamber from the second end of the steering duct, and enters the blower body through the blower flow channel. The steering duct is not arranged on the outside or the peripheral side, and does not need to occupy the space outside the air path module. It is also an optimization of space. The steering duct and the partition are integrated to reduce the number of parts.

[0029] Due to the application of the above solution, this application has the following advantages and effects compared with the prior art:

[0030] 1. The above-mentioned scheme of the present application is mainly achieved by designing the ventilator to have a structure with a bottom shell, a partition, and an upper cover plate, and forming a first chamber between the partition and the bottom shell, and the partition and the upper cover plate are divided by the fan body into a second chamber located in front of the air inlet of the fan body and a flow monitoring chamber located behind the air outlet of the fan body, and an air flow channel connecting the first chamber and the second chamber is formed on the partition, so as to optimize and simplify the air path module originally separately installed in the bottom shell of the ventilator, so that the bottom shell of the ventilator can also become a part of the air path module.

[0031] 2. The above-mentioned scheme of the present application forms a first chamber between the bottom shell and the partition. The air entering the ventilator air path module enters the first chamber from the air inlet and then enters the second chamber formed by the partition and the upper cover plate from the air flow channel. The air is then blown by the fan body to the flow monitoring chamber and then enters the humidification tank. Through such a flow channel design, the first chamber formed between the bottom shell and the partition is used as the intake flow channel of the intake flow path, which can stabilize the airflow and reduce the airflow noise without setting up additional corresponding pipelines, and can make full use of the excess space in the original bottom shell.

[0032] 3. The above-mentioned solution of the present application also forms a second chamber and a flow monitoring chamber between the partition and the upper cover. The airflow monitoring function can be realized by relying on this arrangement without the need to set up additional pipelines, reducing the number of parts and components and reducing the size of the ventilator.

[0033] 4. In summary, the technical solution of the present application cleverly utilizes the first chamber formed between the bottom shell and the partition as the intake air flow path, which can stabilize the airflow and reduce the airflow noise without setting up additional corresponding pipelines. The redundant gap in the original bottom shell can be fully utilized, and the second chamber and the flow monitoring chamber are formed between the partition and the upper cover, so that the overall structure of the ventilator is more compact and reliable, the overall parts of the ventilator are reduced, the structure is clever and reasonable, the assembly is simplified, the assembly efficiency and assembly quality are improved, and the safety and reliability of the patient when using the ventilator are also improved. As a medical product, the ventilator can make the patient's use safer and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic structural diagram of a ventilator according to an embodiment of the present application;

[0035] FIG2 is a schematic diagram of the assembly of a ventilator according to an embodiment of the present application;

[0036] FIG3 is an exploded view of a ventilator according to an embodiment of the present application;

[0037] FIG4 is a schematic diagram of the assembly of the partition, upper cover, fan body and other components in the embodiment of the present application;

[0038] FIG5 is a schematic diagram of a fan body and a partition assembled in a bottom shell in an embodiment of the present application;

[0039] FIG6 is a schematic top view of the ventilator in the embodiment of the present application with some structures removed;

[0040] FIG7 is a schematic diagram of the bottom shell in an embodiment of the present application;

[0041] FIG8 is a perspective schematic diagram of a partition in an embodiment of the present application (viewing angle 1);

[0042] FIG9 is a perspective schematic diagram of a partition in an embodiment of the present application (viewing angle 2);

[0043] FIG10 is a perspective schematic diagram of an upper cover plate in an embodiment of the present application;

[0044] FIG11 is a schematic cross-sectional view of the upper cover plate in an embodiment of the present application (direction one);

[0045] FIG12 is a schematic cross-sectional view of the upper cover plate in an embodiment of the present application (direction 2);

[0046] FIG13 is a perspective diagram of a transition seal in an embodiment of the present application (viewing angle 1);

[0047] FIG14 is a perspective diagram of a transition seal in an embodiment of the present application (viewing angle 2);

[0048] FIG15 is a cross-sectional schematic diagram of a transition seal in an embodiment of the present application (direction one);

[0049] FIG16 is a cross-sectional schematic diagram of a transition seal in an embodiment of the present application (direction two);

[0050] FIG17 is a cross-sectional schematic diagram of a ventilator according to an embodiment of the present application (direction one);

[0051] FIG18 is a cross-sectional schematic diagram of a ventilator according to an embodiment of the present application (direction two);

[0052] FIG19 is a cross-sectional schematic diagram of a ventilator according to an embodiment of the present application (direction three);

[0053] FIG20 is a cross-sectional schematic diagram of a ventilator according to an embodiment of the present application (direction four);

[0054] FIG21 is a schematic diagram of the overall airflow direction of a ventilator according to an embodiment of the present application;

[0055] FIG22 is a schematic diagram of the flow direction of airflow from the outside into the first chamber of the ventilator according to an embodiment of the present application;

[0056] FIG23 is a schematic diagram of the flow direction of airflow from the first chamber into the second chamber of the ventilator according to an embodiment of the present application;

[0057] FIG24 is a schematic diagram of the flow direction of the airflow from the second chamber into the blower body of the ventilator according to an embodiment of the present application;

[0058] Figure 25 is a schematic diagram of the flow direction of the airflow of the ventilator from the second chamber into the flow monitoring chamber according to an embodiment of the present application.

[0059] The various parts of the above drawings are represented as follows: 1. Bottom shell; 10. Accommodation space; 11. Air inlet; 111. Air inlet pipe; 12. Second side panel; 2. Partition; 21. Fan accommodating chamber; 22. Air flow channel; 220. Turning duct; 221. First turning port; 222. Second turning port; 223. Laminar flow element; 23. Soft rubber seal; 231. Rib; 232. Sealing strip; 233. Sealing ring; 24. First side panel; 25. Sampling extension duct; 3. Fan body; 31. Air inlet; 32. Air outlet; 4. Upper cover; 41. First sampling port; 42. Second sampling port; 43. Third sampling port; 44. Sinking area; 5. Circuit board; 51. Monitoring sensor; 52. Transfer seal; 521. First transfer part; 522. Second transfer part; 523. Third transfer part; 53. Electronic components; 60. First chamber; 70. Second chamber; 80. Flow monitoring chamber; 9. Humidification tank. DETAILED DESCRIPTION

[0060] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0061] In this application, 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; they can refer to mechanical connection, direct connection, or indirect connection through an intermediate medium; they can refer to internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0062] In the present application, the orientation or position relationship indicated by the terms "upper", "lower", "bottom", "inside", "outside", etc. is based on the orientation or position assembly relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0063] In addition, the term "and / or" in this application means three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions in which both A and B are satisfied.

[0064] In the embodiment, as shown in Figures 1 to 25, the embodiment of the present application discloses a ventilator, which has:

[0065] A bottom shell 1 having an air inlet 11 communicating with the outside atmosphere; a partition 2 assembled on the bottom shell 1 and defining a fan accommodating cavity 21, wherein a fan body 3 is mounted in the fan accommodating cavity 21; and an upper cover 4 assembled on the partition 2.

[0066] In an embodiment of the present application, the ventilator is configured as follows: a first chamber 60 is formed between the partition 2 and the bottom shell 1, and the partition 2 and the upper cover plate 4 are divided by the fan body 3 into a second chamber 70 located in front of the air inlet 31 of the fan body 3 and a flow monitoring chamber 80 located behind the air outlet 32 ​​of the fan body 3, and an air flow channel 22 connecting the first chamber 60 and the second chamber 70 is formed on the partition 2.

[0067] The embodiment of the present application is mainly achieved by designing the ventilator to have a structure including a bottom shell 1, a partition 2, and an upper cover plate 4, and forming a first chamber 60 between the partition 2 and the bottom shell 1, and the partition 2 and the upper cover plate 4 are divided by the fan body 3 into a second chamber 70 located in front of the air inlet 31 of the fan body 3 and a flow monitoring chamber 80 located behind the air outlet 32 ​​of the fan body 3, and an air flow channel 22 connecting the first chamber 60 and the second chamber 70 is formed on the partition 2, so as to optimize and simplify the air path module originally separately installed in the bottom shell 1 of the ventilator, so that the bottom shell 1 of the ventilator can also become a part of the air path module; the second chamber 70 and the flow monitoring chamber 80 are formed between the partition 2 and the upper cover plate 4, and the air flow monitoring function can be realized by relying on this arrangement without the need to set up additional pipelines, making the overall structure of the ventilator more compact and reliable.

[0068] In the scheme of the embodiment of the present application, referring to Figure 9, a soft rubber seal 23 is provided on the local surface and outer edge of the partition 2 through integral mold forming, and the soft rubber seal 23 is configured to act at least on the connection between the partition 2 and the bottom shell 1, and the connection between the partition 2 and the upper cover plate 4. The soft rubber seal 23 molded with the partition 2 seals the first chamber 60, the second chamber 70 and the flow monitoring chamber 80 between the mating components, which can effectively reduce the number of additional parts and improve assembly efficiency and quality.

[0069] In the scheme of the embodiment of the present application, referring to Figure 9, the soft rubber seal 23 extends a plurality of ribs 231 that are arranged around the fan accommodating cavity 21 of the partition 2, and the plurality of ribs 231 constitute an elastic bracket for mounting the fan body 3 to elastically limit the fan body 3. The elastic bracket extends from the soft rubber seal 23. First, no additional components are required, and second, the elasticity and friction of the soft rubber components themselves can be used to elastically limit the fan body 3, so that the fan body 3 and the partition 2 can have a good soft connection and buffer. The design is ingenious and can effectively reduce the vibration of the fan body 3. At the same time, sufficient friction and limitation can also ensure the firm installation of the fan body 3, reduce vibration and noise; for the flow monitoring chamber 80, it is also formed by the soft rubber seal 23 and the air outlet 32 ​​joint of the fan body 3, the partition 2, and the upper cover plate 4. The air outlet 32 ​​joint of the fan body 3 also cooperates with the soft rubber seal 23, and also has the effect of reducing vibration and noise.

[0070] In the scheme of the embodiment of the present application, referring to Figure 9, the lower side of the partition 2 is provided with a first side panel 24 for isolating the first chamber 60, and a second side panel 12 is provided on the bottom shell 1 corresponding to the first side panel 24, and the soft rubber seal 23 extends a sealing strip 232 arranged to the outside of the first side panel 24. After the partition 2 is assembled in the bottom shell 1, the first side panel 24, the sealing strip 232, and the second side panel 12 are sealed together to isolate the first chamber 60; the first side panel 24 and the second side panel 12 are arranged obliquely downward toward the inside, so as to realize the isolation of the first chamber 60 due to the structure of the partition 2 and the bottom shell 1 itself, and the sealing strip 232 extending from the soft rubber seal 23 is used for integrated sealing, without the need to set up additional sealing components, reducing assembly steps, saving labor time, and also improving the sealing effect.

[0071] In the scheme of the embodiment of the present application, referring to Figure 9, a circle of annular sealing ring 233 is extended from the sealing strip 232 of the soft rubber seal 23 and is located on the circular bottom surface of the partition 2. The circular bottom surface of the partition 2 is tightly connected to the bottom shell 1 through the sealing ring 233, so that the first chamber 60 forms an annular air inlet flow channel, so that the air entering the first chamber 60 can flow around the annular air inlet flow channel and then enter the second chamber 70 from the air flow channel 22. The annular air inlet flow channel will make the airflow smoother and also have a certain effect on noise reduction. At the same time, the bottom seal is also drawn out from the soft rubber seal 23 integrated with the partition 2, which is easy to assemble and has a good sealing effect.

[0072] In the embodiment of the present application, referring to Figures 10 to 12, the upper cover plate 4 is provided with a first sampling port 41 connected to the first chamber 60, a second sampling port 42 connected to the second chamber 70, and a third sampling port 43 connected to the flow monitoring chamber 80. Corresponding to the first sampling port 41, the second sampling port 42, and the third sampling port 43, monitoring sensors 51 are provided on the circuit board 5 of the ventilator. By arranging the sampling ports in this way, the airflow at this position is stable and the measurement is accurate. At the same time, the sampling ports are integrally connected to the upper cover plate 4, and the sampling ports are directly connected to the first chamber 60, the second chamber 70, and the flow monitoring chamber 80. The monitoring sensors 51 are also connected to the sampling ports to monitor the airflow parameters such as high pressure, low pressure, and flow, avoiding the arrangement of additional monitoring gas circuits and reducing the number of parts such as several joints and pipelines. Specifically, the upper cover is provided with a sinking area 44, and the first sampling port 41, the second sampling port 42, and the third sampling port 43 are arranged in the sinking area 44, so as to make the structure of the airway monitoring part of the ventilator more compact and effectively control the overall volume of the ventilator.

[0073] In the embodiment of the present application, referring to FIG3 , the circuit board 5 is provided with a transition seal 52 corresponding to the sunken area 44 where the first sampling port 41 , the second sampling port 42 , and the third sampling port 43 are located. This transition seal 52 provides an integrated sealed transition between the first sampling port 41 , the second sampling port 42 , and the third sampling port 43 and the corresponding monitoring sensor 51 , resulting in fewer parts and easy assembly. The structure of the transition seal 52 is shown in FIG13 to FIG16 , where the transition seal 52 is provided with a first transition portion 521 , a second transition portion 522 , and a third transition portion 523 corresponding to the first sampling port 41 , the second sampling port 42 , and the third sampling port 43 . Specifically, referring to Figures 10 to 12, the first sampling port 41, the second sampling port 42, and the third sampling port 43 are joint pipe structures integrally formed with the upper cover plate 4, and the partition plate 2 is provided with a sampling extension pipe 25 for connecting the first chamber 60 and the first sampling port 41, thereby forming an air flow channel for each sampling port. The provided joint pipe structure can more conveniently monitor the docking of the sensor 51 and the sealing transfer of the transfer seal 52.

[0074] In the solution of the embodiment of the present application, referring to Figure 10, there are multiple sinking areas 44, and the additional sinking areas 44 are used to accommodate electronic components 53 arranged downward on the lower surface of the circuit board 5. Here, the additional refers to other sinking areas 44 except the sinking area 44 where the first sampling port 41, the second sampling port 42, and the third sampling port 43 are set, so that the electronic components 53 protruding from the circuit board 5 can be accommodated downward in the sinking area 44 of the upper cover plate 4, thereby reducing the upper and lower heights of the ventilator.

[0075] In the solution of the embodiment of the present application, referring to FIG20, a steering duct 220 is provided at the air flow channel 22 on the partition 2, and the steering duct 220 is provided with a first steering port 221 in the second chamber 70 and a second steering port 222 in the first chamber 60. A laminar flow element 223 is provided in the steering duct 220. At the same time, the laminar flow element 223 is used as the boundary, and the part above the laminar flow element 223 is the second chamber 70, and the part below the laminar flow element 223 is the first chamber 60; The overall structure of the steering duct 220 is on the partition 2 and the upper cover plate 4 and is located between the second chamber 70 and the first chamber 60. The air entering the first chamber 60 from the air inlet 11 enters the first end of the steering duct 220 along the inlet flow channel, and enters the second chamber 70 from the second end of the steering duct 220, and enters the fan body 3 through the blower flow channel. The steering duct 220 is not arranged on the outside or the peripheral side, and does not need to occupy the space outside the air path module. It is also an optimization of space. The steering duct 220 is integrated with the partition 2 to reduce the number of parts.

[0076] In addition, the solution of the present application is described in detail using one of the implementation methods.

[0077] In this embodiment, the ventilator has a bottom shell 1, a partition 2, a fan body 3, an upper cover plate 4, a circuit board 5, and a soft rubber seal 23 for assembling and sealing between the bottom shell 1, the partition 2, the fan body 3, and the upper cover plate 4. The partition 2 and the soft rubber seal 23 are integrally formed by a mold, and further include a transition seal 52 for sealing and transitioning the circuit board 5 and the sunken area 44 of the upper cover plate 4.

[0078] In this embodiment, a first chamber 60 is formed between the partition plate 2 and the bottom shell 1. The partition plate 2 and the upper cover plate 4 are divided by the fan body 3 into a second chamber 70 located in front of the air inlet 31 of the fan body 3 and a flow monitoring chamber 80 located behind the air outlet 32 ​​of the fan body 3. An airflow channel 22 is formed on the partition plate 2 to connect the first chamber 60 and the second chamber 70.

[0079] In this embodiment, the partition 2 is assembled within the accommodating space 10 of the bottom shell 1. A first side panel 24 for separating the first chamber 60 is provided on the lower side of the partition 2. A second side panel 12 is provided on the bottom shell 1 corresponding to the first side panel 24. A sealing strip 232 extends from the soft rubber seal 23 and is arranged on the outside of the first side panel 24. After the partition 2 is assembled in the bottom shell 1, the first side panel 24, the sealing strip 232, and the second side panel 12 are tightly fitted together to separate the first chamber 60. The first and second side panels 24, 12 are arranged inwardly and obliquely downward. Extending from the sealing strip 232 of the soft rubber seal 23 is an annular sealing ring 233 located on the circular bottom surface of the partition 2. The circular bottom surface of the partition 2 is tightly connected to the bottom shell 1 via the sealing ring 233, so that the first chamber 60 forms an annular air inlet channel. A turning duct 220 is provided at the air flow channel 22 on the partition 2. The turning duct 220 is provided with a first turning port 221 in the second chamber 70 and a second turning port 222 in the first chamber 60. A laminar flow element 223 is provided in the turning duct 220.

[0080] In this embodiment, the fan body 3 is installed in the fan accommodating cavity 21 of the partition 2, and the soft rubber seal 23 extends a plurality of ribs 231 which are arranged around the fan accommodating cavity 21 of the partition 2. The plurality of ribs 231 constitute an elastic bracket for installing the fan body 3 to elastically limit the fan body 3.

[0081] In this embodiment, the upper cover plate 4 is mounted on the partition plate 2, and the partition plate 2 and the upper cover plate 4 are separated by the fan body 3 into a second chamber 70 located in front of the air inlet 31 of the fan body 3 and a flow monitoring chamber 80 located behind the air outlet 32 ​​of the fan body 3; one of the sunken areas 44 of the upper cover plate 4 is provided with a first sampling port 41 connected to the first chamber 60, a second sampling port 42 connected to the second chamber 70, and a third sampling port 43 connected to the flow monitoring chamber 80, so that the sunken area 44 serves as an airflow monitoring area. Specifically, the first sampling port 41, the second sampling port 42, and the third sampling port 43 are joint pipe structures integrally formed with the upper cover plate 4, and a sampling extension pipe 25 for connecting the first chamber 60 and the first sampling port 41 is provided on the partition plate 2. Another sunken area 44 of the upper cover plate 4 is used to accommodate electronic components 53 arranged downward on the lower surface of the circuit board 5.

[0082] In this embodiment, the circuit board 5 is positioned and installed on the upper cover plate 4. The circuit board 5 is provided with a transition seal 52 corresponding to the sunken area 44 where the first sampling port 41, the second sampling port 42, and the third sampling port 43 are located. The transition seal 52 is provided with a first transition portion 521, a second transition portion 522 and a third transition portion 523 corresponding to the first sampling port 41, the second sampling port 42, and the third sampling port 43.

[0083] In this embodiment, the overall airflow direction can be referred to FIG21, and the remaining flow directions in each flow channel can be referred to FIG22 to FIG25. The details are as follows:

[0084] An air inlet channel is formed at the first chamber 60, a turning channel is formed at the turning pipe 220, and a blower channel is formed at the second chamber 70. After the air coming in from the air inlet 11 enters the first chamber 60, the air passes through the air inlet channel, the turning channel, and the blower channel and is blown by the fan body 3 to the flow monitoring chamber 80 before entering the humidification tank 9 of the ventilator.

[0085] The air inlet 11 is connected to the first chamber 60 through an air inlet pipe 111 extending into the first chamber 60 . The inner opening of the air inlet pipe 111 is located at the head end of the air flow path in the air inlet channel.

[0086] The steering duct 220 is provided with a first steering port 221 in the first chamber 60 , and the bottom opening of the first steering port 221 is located at the end of the air flow path in the air inlet channel and at the head end of the air flow path in the steering channel.

[0087] The steering duct 220 is provided with a second steering port 222 in the second chamber 70 . The top opening of the second steering port 222 is located at the end of the air flow path in the steering channel and at the beginning of the air flow path in the blast channel.

[0088] The air inlet 31 of the fan body 3 is located in the second chamber 70 and at the end of the air flow path in the blast channel; the air outlet 32 ​​of the fan body 3 is located in the flow monitoring chamber 80 .

[0089] This embodiment has been optimized and improved in many aspects of the ventilator's gas circuit module, especially in order to further achieve the purpose of this application, including:

[0090] 1. The first chamber 60 is composed of the bottom shell 1 and the partition 2. The redundant space in the original bottom shell 1 can be utilized to serve as the first chamber 60, so that the air entering from the air inlet 11 can pass through the intake air duct. In addition to reducing the occupied space, it also has the characteristics of optimizing the air path, making the air flow smoother and the noise lower.

[0091] 2. The overall structure of the steering duct 220 is on the partition 2 and the upper cover plate 4 and is located between the second chamber 70 and the first chamber 60. The air entering the first chamber 60 from the air inlet 11 enters the first end of the steering duct 220 along the inlet flow channel, and enters the second chamber 70 from the second end of the steering duct 220, and enters the fan body 3 through the blower flow channel. The steering duct 220 is not arranged on the outside or the peripheral side, and does not need to occupy the space outside the air path module, which is also an optimization of the space.

[0092] 3. The airflow monitoring area is arranged on the upper cover plate 4. The first sampling port 41 is directly connected to the first chamber 60, the second sampling port 42 is directly connected to the second chamber 70, and the third sampling port 43 is directly connected to the flow monitoring chamber 80. There is no need to specially set up additional airflow pipes to monitor the airflow in the air path module, which saves additional parts, pipes, and joints and saves space.

[0093] 4. The design of connecting the plurality of airflow monitoring sensors on the circuit board 5 to the first sampling port 41, the second sampling port 42, and the third sampling port 43 through a transfer seal 52 cleverly borrows the layout of the airflow monitoring area on the air path module. When the circuit board 5 is assembled on the upper cover 4, the plurality of airflow monitoring sensors can be directly connected to the first sampling port 41, the second sampling port 42, and the third sampling port 43 through a transfer seal 52. This also eliminates some parts, simplifies assembly, and improves assembly efficiency and quality. The airflow monitoring sensors will also be arranged toward the air path module, which also saves some space.

[0094] In particular, in the design of the detailed implementation method, from the analysis of the above four points, it can be seen that the implementation of each optimized and improved functional design is closely linked and interdependent, thereby making the overall structure of the ventilator more compact and reliable, reducing the overall parts of the ventilator, and making the structure ingenious and reasonable, simplifying the assembly, improving the assembly efficiency and assembly quality, thereby also improving the safety and reliability of the patient when using the ventilator. As a medical product, the ventilator can make the patient's use safer and more stable.

[0095] The above embodiments are intended only to illustrate the technical concepts and features of this application. Their purpose is to enable those familiar with the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this application shall be included in the scope of protection of this application.

Claims

1. A ventilator, characterized in that: The ventilator has: A bottom shell (1), wherein the bottom shell (1) has an air inlet (11) connected to the outside atmosphere; A partition (2), the partition (2) being mounted on the bottom shell (1), the partition (2) being provided with a fan accommodating cavity (21), and a fan body (3) being installed in the fan accommodating cavity (21); An upper cover plate (4), wherein the upper cover plate (4) is assembled on the partition plate (2); The ventilator is configured as follows: a first chamber (60) is formed between the partition (2) and the bottom shell (1); the partition (2) and the upper cover plate (4) are separated by the fan body (3) into a second chamber (70) located in front of the air inlet (31) of the fan body (3); and an air flow channel (22) connecting the first chamber (60) and the second chamber (70) is formed on the partition (2).

2. The ventilator according to claim 1, characterized in that: The partition (2) is provided with a soft rubber seal (23) on its local surface and outer edge by integrally forming with a mold, and the soft rubber seal (23) is configured to act at least on the connection between the partition (2) and the bottom shell (1), and the connection between the partition (2) and the upper cover plate (4).

3. The ventilator according to claim 2, characterized in that: The soft rubber seal (23) extends a plurality of ribs (231) which are arranged around the fan accommodating cavity (21) of the partition (2); the plurality of ribs (231) constitute an elastic bracket for mounting the fan body (3) to elastically limit the fan body (3).

4. The ventilator according to claim 2, characterized in that: The lower side of the partition (2) is provided with a first side plate (24) for isolating the first chamber (60); a second side plate (12) is provided on the bottom shell (1) corresponding to the first side plate (24); a sealing strip (232) extends from the soft rubber seal (23) and is arranged on the outer side of the first side plate (24); after the partition (2) is assembled in the bottom shell (1), the first side plate (24), the sealing strip (232) and the second side plate (12) are tightly matched to isolate the first chamber (60); the first side plate (24) and the second side plate (12) are arranged obliquely downward toward the inside.

5. The ventilator according to claim 4, characterized in that: A ring-shaped sealing ring (233) is further extended from the sealing strip (232) of the soft rubber sealing member (23) and is located on the circular bottom surface of the partition (2). The circular bottom surface of the partition (2) is tightly connected to the bottom shell (1) via the sealing ring (233), so that the first chamber (60) forms an annular air inlet channel.

6. The ventilator according to claim 1, characterized in that: The partition plate (2) and the upper cover plate (4) are separated by the fan body (3) into a flow monitoring chamber (80) located behind the air outlet (32) of the fan body (3).

7. The ventilator according to claim 6, characterized in that: The upper cover plate (4) is provided with a first sampling port (41) connected to the first chamber (60), a second sampling port (42) connected to the second chamber (70), and a third sampling port (43) connected to the flow monitoring chamber (80); and monitoring sensors (51) are provided on the circuit board (5) of the ventilator corresponding to the first sampling port (41), the second sampling port (42), and the third sampling port (43).

8. The ventilator according to claim 7, characterized in that: The upper cover is provided with a sinking area (44), and the first sampling port (41), the second sampling port (42), and the third sampling port (43) are arranged in the sinking area (44).

9. The ventilator according to claim 8, characterized in that The circuit board (5) is provided with a transition seal (52) corresponding to the sinking area (44) where the first sampling port (41), the second sampling port (42) and the third sampling port (43) are located.

10. A ventilator according to any one of claims 7 to 9, characterized in that: The first sampling port (41), the second sampling port (42) and the third sampling port (43) are joint pipe structures integrally formed with the upper cover plate (4), and a sampling extension pipe (25) for connecting the first chamber (60) and the first sampling port (41) is provided on the partition plate (2).

11. The ventilator according to claim 8, characterized in that: There are a plurality of sinking areas (44), and other sinking areas (44) are used to accommodate electronic components (53) arranged downward on the lower surface of the circuit board (5).

12. The ventilator according to claim 1, characterized in that: A steering duct (220) is provided at the air flow channel (22) on the partition (2); the steering duct (220) is provided with a first steering port (221) located in the second chamber (70) and a second steering port (222) located in the first chamber (60); and a laminar flow element (223) is provided in the steering duct (220).

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