A breathing machine

Abstract

This utility model discloses a ventilator, comprising a blower compartment cover, a ventilator base, and a ventilator top cover, wherein a blower compartment is formed between the blower compartment cover and the ventilator base; an air intake channel is provided between the ventilator top cover and the ventilator base, the air intake channel being located outside the blower compartment, and a vertical air resistance pipe is provided within the air intake channel; the ventilator base also has a water tank receiving cavity; the ventilator top cover is located above the blower compartment cover, and a circuit board receiving cavity is formed between the ventilator top cover and the ventilator base, the circuit board receiving cavity being located between the water tank receiving cavity and the air intake channel; a circuit board is vertically arranged within the circuit board receiving cavity, and sensors on the circuit board are arranged corresponding to the air resistance pipe. This utility model has a compact structure and facilitates the monitoring of air intake pressure and flow rate.

Description

Technical Field

[0001] This utility model relates to a ventilator and belongs to the field of ventilator technology. Background Technology

[0002] In modern clinical medicine, ventilators, as an effective means of artificially replacing spontaneous ventilation, are widely used in respiratory failure caused by various reasons, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation, occupying a very important position in the field of modern medicine. A ventilator is a crucial medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives.

[0003] For small ventilators, especially those with the air intake path located below the fan assembly, there is no good solution for monitoring the flow and pressure of the air intake path. For example, if the circuit board is placed above the fan assembly, an additional detection chamber is required, which makes the ventilator structure complex and is not conducive to reducing the size of the ventilator. Utility Model Content

[0004] In order to optimize the spatial layout of the ventilator, this utility model provides a ventilator, and the specific technical solution is as follows.

[0005] A ventilator includes a blower compartment cover, a ventilator base, and a ventilator top cover, wherein a blower compartment is formed between the blower compartment cover and the ventilator base. The ventilator top cover and the ventilator base have an air intake channel located outside the blower compartment, and a vertical air resistance pipe is installed within the air intake channel. The ventilator base also has a water tank cavity. The ventilator top cover is located above the blower compartment cover, and a circuit board cavity is formed between the ventilator top cover and the ventilator base, located between the water tank cavity and the air intake channel. A circuit board is vertically installed within the circuit board cavity, and sensors on the circuit board are positioned corresponding to the air resistance pipe.

[0006] By adopting the above technical solution, the circuit board is cleverly placed vertically between the air intake channel and the water tank, which not only makes the structure of the ventilator more compact, but also makes the vertically placed air resistance tube very close to the circuit board, which is conducive to the sensors integrated on the circuit board directly detecting parameters such as flow rate and pressure of the air resistance tube.

[0007] Furthermore, the ventilator also includes a fan vibration damping and noise reduction component, which is integrally molded from a flexible material. The fan vibration damping and noise reduction component is sandwiched between the fan housing cover and the ventilator base. The fan vibration damping and noise reduction component includes a main body part inside the fan housing and an air intake channel wall. The main body part inside the fan housing is located inside the fan housing in the assembled state; the air intake channel wall is located outside the fan housing in the assembled state.

[0008] The air intake channel includes a lower air intake channel, the air resistance pipe, and a transition chamber. The lower air intake channel and the transition chamber are connected through the air resistance pipe. The lower air intake channel is connected to the air inlet on the ventilator base, and the transition chamber is connected to the inner cavity of the fan housing. The lower air intake channel is located between the ventilator base and the air intake channel wall, and the transition chamber is located between the fan housing cover and the air intake channel wall. Preferably, the flexible material is at least one of silicone, TPE, TPR, polyurethane, neoprene rubber, polypropylene, fluororubber, polysulfide rubber, or nitrile rubber.

[0009] Furthermore, a silencing chamber is formed between the upper cover of the fan housing and the wall of the air intake channel. The air intake channel wall has through holes, and the silencing chamber and the lower air intake channel are connected through the through holes. Preferably, the silencing chamber includes two chambers of different volumes. The fan vibration damping and silencing component not only provides flexible support for the fan body but also serves as part of the sidewall of the air intake channel, silencing chamber, and transition chamber, which is beneficial for noise reduction while simplifying the assembly process.

[0010] Furthermore, a gas buffer chamber is formed between the ventilator base and the blower housing cover. The gas buffer chamber is located downstream of the blower housing and is connected to the water tank in the water tank receiving chamber.

[0011] Furthermore, the wind turbine vibration damping and noise reduction component has a wind resistance tube mounting hole and a pressure sampling channel. The wind resistance tube is fixed and installed in the wind resistance tube mounting hole. The pressure sampling channel is located close to the wind resistance tube mounting hole. The pressure sampling channel includes a first pressure sampling channel and a second pressure sampling channel. The first pressure sampling channel is located above the wind resistance tube mounting hole, and the second pressure sampling channel is located below the wind resistance tube mounting hole. The sensor is located in the first pressure sampling channel and the second pressure sampling channel.

[0012] Furthermore, it also includes an air outlet connector, which communicates with the water tank within the water tank housing cavity, and is located between the fan compartment and the water tank housing cavity. Furthermore, the ventilator cover is equipped with an air outlet dust cover, which is positioned corresponding to the air outlet connector. The circuit board, gas buffer chamber, and air outlet connector are all located between the water tank and the fan compartment, thus maximizing space utilization.

[0013] Compared to existing technologies, this invention adopts a completely new layout, cleverly placing the circuit board vertically between the air intake channel and the water tank. This not only makes the ventilator structure more compact, but also allows the vertically positioned air resistance tube to be very close to the circuit board, facilitating the monitoring of air intake pressure and flow rate. Simultaneously, the inclusion of fan vibration damping and noise reduction components helps reduce noise while simplifying the assembly process. Attached Figure Description

[0014] Figure 1 This is an exploded view of the ventilator of this utility model;

[0015] Figure 2 This is a schematic diagram of the ventilator base;

[0016] Figure 3 This is a bottom view of the wind turbine nacelle cover;

[0017] Figure 4 This is a schematic diagram of a fan vibration damping and noise reduction component;

[0018] Figure 5 This is a longitudinal cross-sectional view of the ventilator;

[0019] Figure 6 yes Figure 5 A schematic diagram of airflow in cross-sectional view.

[0020] In the diagram: 1. Ventilator top cover, 1.1. Dust cover for air outlet, 2. Ventilator base, 2.1. Air inlet, 2.2. Water tank cavity, 3. Water tank, 4. Fan vibration damping and noise reduction components, 4. Main body of the fan compartment, 4.1. Air inlet channel wall, 4.2. Through hole, 4.2.1. Air resistance pipe mounting hole, 4.3. Pressure sampling channel, 4.4. First pressure sampling channel, 4.4.1. Second pressure sampling channel, 4.4.2. Fan compartment top cover, 5. Fan body, 6. Fan compartment, 7. Sensor, 8. Lower air inlet channel, 9. Transition chamber, 10. Circuit board, 11. Air resistance pipe, 12. Noise reduction chamber, 13. Gas buffer chamber, 14. Air outlet connector, 15. Circuit board cavity. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] See Figures 1-6 The ventilator includes a ventilator cover 1, a ventilator base 2, and a water tank 3. A fan vibration damping and noise reduction component 4, a fan compartment cover 5, and a fan body 6 are provided between the ventilator cover 1 and the ventilator base 2.

[0023] The fan vibration damping and noise reduction component 4 is made of flexible material and is sandwiched between the fan housing cover 1 and the ventilator base 2. The fan housing 7 is formed by the fan housing cover 1 and the ventilator base 2. The fan body 6 is fixed by the fan vibration damping and noise reduction component 4 and the fan housing cover 5. The fan body 6 is housed within the fan housing 7. The fan vibration damping and noise reduction component 4 includes a main body 4.1 inside the fan housing and an air intake channel wall 4.2. The main body 4.1 is located inside the fan housing 7 in the assembled state, while the air intake channel wall 4.2 is located outside the fan housing 7 in the assembled state. The fan vibration damping and noise reduction component 4 provides flexible support for the fan body 6, which helps to reduce vibration and noise. Preferably, the flexible material is at least one of silicone, TPE, TPR, polyurethane, neoprene rubber, polypropylene, fluororubber, polysulfide rubber, or nitrile rubber.

[0024] An air intake channel is provided between the ventilator cover 5 and the ventilator base 2. The air intake channel is located outside the fan compartment 7 and contains a vertical air resistance tube 12. The ventilator base 2 also has a water tank cavity 2.2. The ventilator cover 1 is located above the fan compartment cover 5. A circuit board cavity 16 is formed between the ventilator cover 1 and the ventilator base 2. The circuit board cavity 16 is located between the water tank cavity 2.2 and the air intake channel. A circuit board 11 is vertically arranged inside the circuit board cavity 16, and the sensor 8 on the circuit board 11 is positioned corresponding to the air resistance tube 12. The air resistance tube 12 is a conventional component inside the ventilator, and it usually contains an air resistance plate (not shown).

[0025] The air intake channel includes a lower air intake channel 9, a wind resistance pipe 12, and a transition chamber 10. The lower air intake channel 9 and the transition chamber 10 are connected through the wind resistance pipe 12. The lower air intake channel 9 is connected to the air inlet 2.1 on the ventilator base 2, and the transition chamber 10 is connected to the inner cavity of the fan housing 7. The lower air intake channel 9 is located between the ventilator base 2 and the air intake channel wall 4.2, and the transition chamber 10 is located between the fan housing cover 5 and the air intake channel wall 4.2.

[0026] The air intake channel wall 4.2 of the fan vibration damping and noise reduction component 4 is located outside the fan housing 7. The air intake channel wall 4.2 and the fan housing cover 5 form a noise reduction chamber 13. The air intake channel wall 4.2 has a through hole 4.2.1, and the noise reduction chamber 13 and the lower air intake channel 9 are connected through the through hole 4.2.1. Preferably, the noise reduction chamber 13 includes two chambers with different volumes. The noise reduction of the noise reduction chamber 13 utilizes the Helmholtz resonant cavity principle, and the two noise reduction chambers 13 with different volumes can reduce noise of different frequencies.

[0027] like Figure 2 , Figure 3As shown, a gas buffer chamber 14 is formed between the ventilator base 2 and the blower compartment cover 5. The gas buffer chamber 14 is located downstream of the blower compartment 7 and is connected to the water tank 3 in the water tank receiving chamber 2.2. On the one hand, the gas buffer chamber 14 can reduce the noise of the blower compartment 7 entering the water tank 3. On the other hand, it can act as a buffer between the water tank 3 and the blower compartment 7 to prevent water in the water tank 3 from flowing back into the blower compartment 7.

[0028] like Figure 1 , Figure 4 , Figure 5 As shown, the fan vibration damping and noise reduction component 4 has a resistance tube mounting hole 4.3 and a pressure sampling channel 4.4. The resistance tube 12 is fixed to the resistance tube mounting hole 4.3. The pressure sampling channel 4.4 is located near the resistance tube mounting hole 4.3 and includes a first pressure sampling channel 4.4.1 and a second pressure sampling channel 4.4.2. The first pressure sampling channel 4.4.1 is located above the resistance tube mounting hole 4.3, and the second pressure sampling channel 4.4.2 is located below the resistance tube mounting hole 4.3. The sensor 8 is located inside the first pressure sampling channel 4.4.1 and the second pressure sampling channel 4.4.2. The resistance tube 12 has corresponding channels corresponding to the first pressure sampling channel 4.4.1 and the second pressure sampling channel 4.4.2. The sensor 8 integrated on the circuit board 11 can directly detect the pressure and flow rate inside the resistance tube 12.

[0029] like Figure 1 As shown, the ventilator also includes an air outlet connector 15, which communicates with the water tank 3 within the water tank housing 2.2. The air outlet connector 15 is located between the blower compartment 7 and the water tank housing 2.2. Furthermore, the ventilator cover 1 is equipped with an air outlet dust cover 1.1, which corresponds to the air outlet connector 15. When the ventilator is not in use, the air outlet dust cover 1.1 covers the air outlet connector 15 to maintain cleanliness. The circuit board 11, the gas buffer chamber 14, and the air outlet connector 15 are all located between the water tank 3 and the blower compartment 7, thus achieving full utilization of space.

[0030] like Figure 5 , Figure 6 As shown, the air intake sequence of the ventilator in this embodiment is as follows: external air enters the lower air intake channel 9 through the air inlet 2.1, then enters the transition chamber 10 through the air resistance pipe 12, then enters the fan chamber 7, is pressurized and delivered to the gas buffer chamber 14, then enters the downstream water tank 3 to increase humidity, and then is discharged to the outside of the ventilator through the air outlet connector 15.

[0031] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention is not limited to the specific embodiments described above; these embodiments are merely illustrative and not limiting. Those skilled in the art, under the guidance of the present invention, can make many modifications without departing from the spirit and scope of the claims, and all such modifications fall within the protection scope of the present invention.

Claims

1. A breathing machine comprising a fan compartment upper cover (5), a breathing machine base (2), a breathing machine upper cover (1), a fan compartment (7) is formed between the fan compartment upper cover (5) and the breathing machine base (2), characterized in that: An air intake channel is provided between the ventilator cover (1) and the ventilator base (2). The air intake channel is located outside the fan compartment (7). A vertical air resistance pipe (12) is provided inside the air intake channel. The ventilator base (2) also has a water tank cavity (2.2). The ventilator cover (1) is located above the fan compartment cover (5). A circuit board cavity (16) is formed between the ventilator cover (1) and the ventilator base (2). The circuit board cavity (16) is located between the water tank cavity (2.2) and the air intake channel. A circuit board (11) is vertically arranged inside the circuit board cavity (16). A sensor (8) on the circuit board (11) is arranged corresponding to the air resistance pipe (12).

2. The breathing apparatus according to claim 1, wherein The ventilator also includes a fan vibration damping and noise reduction component (4), which is integrally formed from a flexible material. The fan vibration damping and noise reduction component (4) is sandwiched between the fan housing cover (5) and the ventilator base (2). The fan vibration damping and noise reduction component (4) includes a main body part (4.1) inside the fan housing and an air intake channel wall (4.2). The main body part (4.1) inside the fan housing is located inside the fan housing (7) in the assembled state; the air intake channel wall (4.2) is located outside the fan housing (7) in the assembled state. The air intake channel includes a lower air intake channel (9), the air resistance pipe (12), and a transition chamber (10). The lower air intake channel (9) and the transition chamber (10) are connected through the air resistance pipe (12). The lower air intake channel (9) is connected to the air inlet (2.1) on the ventilator base (2), and the transition chamber (10) is connected to the inner cavity of the fan housing (7). The lower air intake channel (9) is located between the ventilator base (2) and the air intake channel wall (4.2), and the transition chamber (10) is located between the fan housing cover (5) and the air intake channel wall (4.2).

3. The breathing apparatus of claim 1, wherein, The flexible material is made of at least one of silicone, TPE, TPR, polyurethane, chloroprene rubber, polypropylene, fluororubber, polysulfide rubber or nitrile rubber.

4. The breathing apparatus of claim 2, wherein, A silencing chamber (13) is also formed between the upper cover (5) of the fan hopper and the air intake channel wall (4.2). The air intake channel wall (4.2) has a through hole (4.2.1). The silencing chamber (13) and the lower air intake channel (9) are connected through the through hole (4.2.1).

5. The breathing apparatus of claim 4, wherein, The anechoic chamber (13) comprises two chambers of different volumes.

6. The breathing apparatus of claim 1, wherein, A gas buffer chamber (14) is also formed between the ventilator base (2) and the blower housing cover (5). The gas buffer chamber (14) is located downstream of the blower housing (7) and is connected to the water tank (3) in the water tank receiving cavity (2.2).

7. A ventilator according to claim 2, characterized in that, The fan vibration damping and noise reduction component (4) has a wind resistance tube mounting hole (4.3) and a pressure sampling channel (4.4). The wind resistance tube (12) is fixed to the wind resistance tube mounting hole (4.3). The pressure sampling channel (4.4) is located close to the wind resistance tube mounting hole (4.3). The pressure sampling channel (4.4) includes a first pressure sampling channel (4.4.1) and a second pressure sampling channel (4.4.2). The first pressure sampling channel (4.4.1) is located above the wind resistance tube mounting hole (4.3), and the second pressure sampling channel (4.4.2) is located below the wind resistance tube mounting hole (4.3). The sensor (8) is located in the first pressure sampling channel (4.4) and the second pressure sampling channel (4.4).

8. A ventilator according to claim 1, characterized in that, It also includes an air outlet connector (15), which is connected to the water tank in the water tank receiving cavity (2.2) and is located between the fan compartment (7) and the water tank receiving cavity (2.2).

9. A ventilator according to claim 8, characterized in that, The ventilator cover (1) is provided with an air outlet dust cover (1.1), which is provided corresponding to the air outlet connector (15).

Images