Complete machine air passage of breathing machine
By installing speed reducers and multiple airflow designs in the intake passage of the entire airway of the ventilator, the problems of large airway length and poor humidity effect in the prior art are solved, and the reduction of airway length and volume are achieved. Improved humidity effect.
Patent Information
- Application Number
- CN202420223731.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The length of the entire airway of the existing ventilator machine is relatively long, resulting in a large airway volume and the airflow leading to the humidification heater is a single channel, resulting in a small contact area between the airflow and the water surface and limited humidity effect.
A ventilator airway is designed. By installing a speed reducer in the intake passage, the high-speed airflow is dispersed into multiple small airflows by using interval distribution of winding plates and partitions to reduce the airflow flow rate, thereby reducing the entire machine. The length and volume of the airway and the contact area between the gas and the water surface is enhanced through multiple airflow design.
The effect of reducing the length and volume of the entire machine is achieved, while improving the wettability of the gas, increasing the contact area between the airflow and the water surface, and improving the comfort of treatment.
Smart Images
Figure CN222445056U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to an airway of a complete ventilator. Background Art
[0002] A medical positive pressure ventilation ventilator is a type of ventilator. An airway is provided inside the whole machine of the medical positive pressure ventilation ventilator. The outside air flows to the turbine blower through the airway. The gas compressed by the turbine blower flows to the humidification heater through the airway. The gas is humidified and heated in the humidification heater and then transported to the user end through the airway.
[0003] The whole machine airway is mainly used to reduce the whole machine airflow noise, improve the stability of the airflow and increase the contact area between the airflow and the water surface of the humidification heater, increase the gas humidity, make the inhaled gas closer to the human body's breathing environment, and improve the comfort of treatment.
[0004] In the prior art, the whole machine airway is generally long to ensure the effect of reducing the whole machine airflow noise, resulting in a large volume of the airway. Moreover, the gas leading to the humidification heater is a single-channel airflow, resulting in a small contact area between the airflow and the water surface, and the humidification effect is limited. Utility Model Content
[0005] The technical problem to be solved by the utility model is: to provide an airway for a complete ventilator in view of the problem that the airway of the existing ventilator is generally long, resulting in a large volume of the airway.
[0006] In order to solve the above technical problems, the embodiment of the utility model provides a complete airway of a ventilator, including a main unit and a humidification heater, wherein a humidification airway is formed in the humidification heater, the main unit includes a turbine fan, a fixed shell and a speed reducer, the fixed shell includes a top shell and a bottom shell, the top shell is covered on the bottom shell to enclose a receiving cavity and an air inlet channel; the turbine fan is arranged in the receiving cavity, an air outlet channel is formed in the top shell, the turbine fan has an airflow channel, and the air inlet channel, the airflow channel, the air outlet channel and the humidification airway are connected in sequence;
[0007] The deceleration component is installed in the air intake channel, and the deceleration component includes a plurality of flow deflectors distributed at intervals and a partition connected between two adjacent flow deflectors, a silencer channel for gas circulation is formed between the two adjacent flow deflectors, the partition is located in the silencer channel and divides the silencer channel into two sub-channels, the first end of the sub-channel forms a silencer air inlet, and the second end of the sub-channel forms a silencer air outlet.
[0008] Optionally, the first ends of the plurality of flow circumference plates are bent toward the same side, the plurality of flow circumference plates are divided into a first flow circumference plate located at the innermost side, a second flow circumference plate located at the outermost side, and a third flow circumference plate located between the first flow circumference plate and the second flow circumference plate, the lengths of the first flow circumference plate and the third flow circumference plate are both greater than the length of the third flow circumference plate, and the first end of the first flow circumference plate and the first end of the second flow circumference plate are close to each other to form a primary air inlet for gas to flow into the branch channel;
[0009] The gap between the first end of the first flow plate and the first end of the third flow plate forms a first secondary air inlet, and the gap between the first end of the second flow plate and the first end of the third flow plate forms a second secondary air inlet. The first secondary air inlet and the second secondary air inlet are connected to the primary air inlet to form the silencer air inlet.
[0010] Optionally, the speed reducer further comprises a first baffle plate disposed in the primary air inlet, wherein the first baffle plate has an angle with the gas flow direction in the primary air inlet and is vertically fixed on the baffle plate;
[0011] There is a gap between the first baffle and the inner wall of the first flow-circling plate, and / or there is a gap between the first baffle and the inner wall of the second flow-circling plate.
[0012] Optionally, the first flow-circling plate includes a first straight section and a first bent section, and the second flow-circling plate includes a second straight section, a third straight section and a second bent section connected in sequence, and the first bent section is formed by bending and extending one end of the first straight section;
[0013] The second straight section is arranged parallel to the first straight section and spaced apart, the third straight section is formed by bending and extending one end of the second straight section, the second bent section is formed by bending and extending the second straight section, and the second bent section is arranged corresponding to the first bent section and bends to the same side as the first bent section;
[0014] One side of the first baffle is connected to the first bending section, the third straight section extends in a direction perpendicular to the first baffle, and a gap is formed between the side of the first baffle facing away from the first bending section and the third straight section.
[0015] Optionally, the speed reducer further comprises a second baffle disposed at the first secondary air inlet, the second baffle forms an angle with a gas flow direction in the first secondary air inlet, the bottom end of the second baffle is connected to the partition, and the side surface of the second baffle is connected to the first bending section;
[0016] There is a gap between the side surface of the second baffle away from the first bending section and the first end of the third flow-circling sheet.
[0017] Optionally, the air inlet channel comprises a first air inlet channel and a second air inlet channel, the first air inlet channel is formed in the top shell, a first opening groove is provided on a side of the top shell close to the bottom shell, a second opening groove and a third opening groove are provided on a side of the bottom shell close to the top shell, and the first opening groove is correspondingly connected to the second opening groove to enclose and form the accommodating cavity;
[0018] The side plate of the top shell close to the bottom shell covers the third opening groove to form the second air intake channel, the first air intake channel, the second air intake channel, the air flow channel and the air outlet channel are connected in sequence, and the speed reducer is installed in the first air intake channel.
[0019] Optionally, the air intake channel further includes a third air intake channel, the third air intake channel is formed in the top shell, and the first air intake channel, the second air intake channel, the third air intake channel, the air flow channel and the air outlet channel are connected in sequence.
[0020] Optionally, the humidification heater comprises a water tank, the water tank comprises a tank body, a top cover and a top plate, the top cover is covered on the tank body to enclose a water storage cavity; the tank body is provided with a humidification air inlet communicated with the air outlet channel, and the top cover is provided with a humidification air outlet;
[0021] The top plate is connected between the box body and the top cover, a fourth opening groove is provided on a side of the top plate close to the top cover, a fifth opening groove is provided on a side of the top cover close to the top plate, and the fourth opening groove covers the fifth opening groove to enclose and form an air channel connected to the humidification air inlet;
[0022] The top plate is provided with a first through hole, a second through hole and a third through hole which penetrate through the two side surfaces in the thickness direction thereof, the third through hole being located between the first through hole and the second through hole, an air outlet pipe is provided on a side of the top cover close to the top plate, the top plate is sleeved on the air outlet pipe through the third through hole, an end of the air outlet pipe away from the top cover extends into the water storage cavity, both ends of the air outlet pipe are open, the water storage cavity is connected with the humidification air outlet through the air outlet pipe, and the air channel, the water storage cavity and the air outlet pipe are connected in sequence to form the humidification air channel.
[0023] Optionally, the water tank further includes a flow guide member, which is disposed in the water storage cavity, and in which a flow guide air duct extending along the height direction of the water storage cavity is provided. The flow guide air duct is closed at one end close to the bottom plate of the box body, and has an opening at the other end, and the flow guide air duct connects the humidification air inlet and the air channel.
[0024] Optionally, the water storage cavity is square, and the gas guide member is arranged in the middle of the water storage cavity in the length direction or the width direction.
[0025] In the air duct of the ventilator of the present invention, when the gas in the air inlet channel flows through the speed reduction component, a plurality of flow diversion plates arranged at intervals disperse the high-speed airflow. At the same time, the partition connected between two adjacent flow diversion plates also layers the airflow, so that the high-speed airflow is dispersed into multiple small airflows that enter each branch channel, so as to reduce the flow rate of the airflow flowing into the branch channel, thereby reducing the flow rate of the airflow flowing from the silencer outlet of the branch channel to the turbine blower, and improving the deceleration effect of the gas in the air inlet channel, so as to reduce the length and volume of the air duct of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the structure of the airway of a complete ventilator provided by an embodiment of the utility model;
[0027] Figure 2 yes Figure 1 Transverse cross-section of
[0028] Figure 3 yes Figure 1 Longitudinal section of
[0029] Figure 4 yes Figure 1 An exploded view of the host in ;
[0030] Figure 5 yes Figure 4 A schematic diagram of the structure of the speed reducer;
[0031] Figure 6 yes Figure 1 Schematic diagram of the gas flow direction in the main unit Figure 1 ;
[0032] Figure 7 yes Figure 1 Schematic diagram of the gas flow direction in the main unit Figure 2 ;
[0033] Figure 8 yes Figure 1 Schematic diagram of the gas flow direction in the main unit Figure 3 ;
[0034] Fig. 9 yes Figure 1 Schematic diagram of the gas flow direction in the main unit Figure 4 ;
[0035] Fig.10 yes Figure 1 Exploded view of the humidification heater in;
[0036] Fig.11 yes Figure 1 Schematic diagram of the gas flow direction in the humidification heater Figure 1 ;
[0037] Fig.12 yes Figure 1 Schematic diagram of the gas flow direction in the humidification heater Figure 2 ;
[0038] Fig.13 yes Figure 1 Schematic diagram of the gas flow direction in the humidification heater Figure 3 .
[0039] The reference numerals in the specification are as follows:
[0040] 110, main unit; 111, top shell; 1121, third opening slot; 112, bottom shell; 113, first air inlet channel; 114, air outlet channel; 115, second air inlet channel; 116, accommodating chamber; 117, third air inlet channel;
[0041] 120, humidification heater; 121, top cover; 1211, air outlet pipe; 122, box body; 123, top plate; 124, water storage chamber; 125, humidification air inlet; 126, air guide channel; 127, first through hole; 128, second through hole; 129, air channel;
[0042] 2. Turbofan; 21. Air flow channel; 3. Speed reducer; 31. First flow plate; 32. Second flow plate; 33. Third flow plate; 331. Third A flow plate; 332. Third B flow plate; 34. Partition; 35. First baffle; 36. Primary air inlet; 37. First secondary air inlet; 38. Second baffle; 39. Second secondary air inlet; 4. First shock absorber; 5. Second shock absorber; 51. Connecting hole. DETAILED DESCRIPTION
[0043] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0044] It should be noted that the direction indicated by the arrows in the figures is the direction of gas flow.
[0045] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a complete airway of a ventilator, including a main unit 110 and a humidifying heater 120, a humidifying airway is formed in the humidifying heater 120, the main unit 110 includes a turbine fan 2, a fixed shell and a speed reducer 3, the fixed shell includes a top shell 111 and a bottom shell 112, the top shell 111 covers the bottom shell 112 to enclose a receiving cavity 116 and an air inlet channel 129. The turbine fan 2 is arranged in the receiving cavity 116, an air outlet channel 114 is formed in the top shell 111, the turbine fan 2 has an airflow channel 21, and the air inlet channel 129, the airflow channel 21, the air outlet channel 114 and the humidifying airway are sequentially connected.
[0046] like Figures 4 to 6 As shown, the speed reducer 3 is installed in the air intake channel 129, and the speed reducer 3 includes a plurality of flow deflectors distributed at intervals and a partition 34 connected between two adjacent flow deflectors, and a silencer channel for gas circulation is formed between two adjacent flow deflectors. The partition 34 is located in the silencer channel and divides the silencer channel into two sub-channels, and the first end of the sub-channel forms a silencer air inlet, and the second end of the sub-channel forms a silencer air outlet.
[0047] When the turbine fan 2 rotates at high speed, the outside air flows to the air inlet channel 129 at high speed, and the gas in the air inlet channel 129 flows into the speed reducer 3 through the silencer air inlet port, flows out from the silencer air outlet port after being decelerated by the speed reducer 3, and then flows to the air flow channel 21 in the turbine fan 2, and the gas compressed by the turbine fan 2 flows to the humidification air channel in the humidification heater 120 through the air outlet channel 114, so that the gas is humidified and heated in the humidification heater 120.
[0048] When the gas flows into the deceleration component 3, a plurality of flow diversion plates arranged at intervals disperse the high-speed airflow. At the same time, the partition plate 34 connected between two adjacent flow diversion plates also layers the airflow, so that the high-speed airflow is dispersed into multiple small airflows that enter each branch channel, so as to reduce the flow rate of the airflow flowing into the branch channel, thereby reducing the flow rate of the airflow flowing from the silencer outlet of the branch channel to the turbine fan 2, and improving the deceleration effect of the gas in the air inlet channel 129, so as to reduce the length and volume of the air duct of the whole machine.
[0049] In the air duct of the ventilator of the present invention, when the gas in the air inlet channel 129 flows through the speed reducer 3, a plurality of flow diversion plates arranged at intervals disperse the high-speed airflow. At the same time, the partition plate 34 connected between two adjacent flow diversion plates also layers the airflow, so that the high-speed airflow is dispersed into multiple small airflows that enter each branch channel, so as to reduce the flow rate of the airflow flowing into the branch channel, thereby reducing the flow rate of the airflow flowing from the silencer outlet of the branch channel to the turbine fan 2, and improving the deceleration effect of the gas in the air inlet channel 129, so as to reduce the length and volume of the air duct of the whole machine.
[0050] In one embodiment, the partition 34 is disposed perpendicular to the flow-circling sheet.
[0051] In one embodiment, if Figure 5 As shown, the first ends of multiple flow plates are bent to the same side, and the multiple flow plates are divided into a first flow plate 31 located at the innermost side, a second flow plate 32 located at the outermost side, and a third flow plate 33 located between the first flow plate 31 and the second flow plate 32. The lengths of the first flow plate 31 and the third flow plate 33 are both greater than the length of the third flow plate 33. The first end of the first flow plate 31 and the first end of the second flow plate 32 are close to each other to form a primary air inlet 36 for gas to flow into the branch channel.
[0052] The gap between the first end of the first flow plate 31 and the first end of the third flow plate 33 forms a first secondary air inlet 37, and the gap between the first end of the second flow plate 32 and the first end of the third flow plate 33 forms a second secondary air inlet 39. The first secondary air inlet 37 and the second secondary air inlet 39 are connected to the primary air inlet 36 to form a silencer air inlet.
[0053] When high-speed airflow flows into the deceleration component 3, it is first stratified by the partition 34 to achieve primary deceleration. The stratified gas enters the primary air inlet 36 of each layer. Then, the gas in the primary air inlet 36 of each layer is dispersed into small airflows by the third bypass plate 33 to achieve secondary deceleration. The small airflows after secondary deceleration flow to the corresponding branch channels through the first secondary air inlet 37 and the second secondary air inlet 39 respectively, so as to achieve layer-by-layer and step-by-step deceleration and improve the deceleration and noise reduction effect.
[0054] In one embodiment, the speed reducer 3 further includes a first baffle 35 disposed in the primary air inlet 36 . The first baffle 35 has an angle with the gas flow direction in the primary air inlet 36 and is vertically fixed on the partition 34 .
[0055] There is a gap between the first baffle plate 35 and the inner wall of the first flow deflection plate 31 , and / or there is a gap between the first baffle plate 35 and the inner wall of the second flow deflection plate 32 .
[0056] After the high-speed airflow enters the primary air inlet 36, the first baffle 35 blocks the stratified airflow, causing the stratified gas to slow down again, and then flow to the first secondary air inlet 37 and the second secondary air inlet 39, so as to further improve the deceleration effect of the deceleration component 3, thereby further improving the noise reduction effect.
[0057] In one embodiment, the first flow plate 31 includes a first straight section and a first bent section, and the second flow plate 32 includes a second straight section, a third straight section and a second bent section connected in sequence, and the first bent section is formed by bending and extending one end of the first straight section.
[0058] The second straight section is arranged parallel to the first straight section and spaced apart. The third straight section is formed by bending and extending one end of the second straight section. The second bent section is formed by bending and extending the second straight section. The second bent section is arranged corresponding to the first bent section and bends to the same side as the first bent section.
[0059] One side of the first baffle 35 is connected to the first bending section, the third straight section extends in a direction perpendicular to the first baffle 35, and there is a gap between the side of the first baffle 35 facing away from the first bending section and the third straight section.
[0060] The first baffle 35 is arranged on the first bending section, and the first baffle 35 blocks the gas in the primary air inlet 36 from flowing directly to the first secondary air inlet 37. The gap between the first baffle 35 and the third straight section is opposite to the second secondary air inlet 39, and the gas in the primary air inlet 36 can flow directly from the gap between the first baffle 35 and the third straight section to the second secondary air inlet 39, so that the airflow velocity flowing to the outermost branch channel is greater than the airflow velocity flowing to the innermost branch channel. Since the length of the second bypass plate 32 is greater than the length of the first bypass plate 31, the length of the outermost branch channel is greater than the length of the innermost branch channel. Therefore, the airflow velocity of the airflow with a higher flow rate flowing out of the air outlet after deceleration in the branch channel with a longer length can be balanced with the airflow velocity of the airflow with a lower flow rate flowing out of the air outlet after deceleration in the branch channel with a shorter length, thereby obtaining a stable airflow.
[0061] In one embodiment, the second straight section of the second flow plate 32 is perpendicular to the third straight section, and the first straight section of the first flow plate 31 is bent 90° and then bent and extended to form the first bent section.
[0062] In one embodiment, the first bending section and the second bending section are bent toward the inside of the deceleration member 3. Compared with the first bending section and the second bending section being bent toward the outside of the deceleration member 3, this design makes the deceleration member 3 smaller in size and occupies less space.
[0063] In one embodiment, the speed reducer 3 also includes a second baffle 38 arranged at the first secondary air inlet 37, the second baffle 38 has an angle with the gas flow direction in the first secondary air inlet 37, the bottom end of the second baffle 38 is connected to the partition 34, and the side of the second baffle 38 is connected to the first bending section.
[0064] There is a gap between the side surface of the second baffle 38 away from the first bending section and the first end of the third flow bypass plate 33 .
[0065] When the airflow in the primary air inlet 36 flows to the first secondary air inlet 37, it is blocked by the second baffle 38 to further reduce the airflow speed flowing to the innermost branch channel, thereby further balancing the flow rate of the gas flowing out of each branch channel and improving the stability of the gas flowing out of the branch channel.
[0066] In one embodiment, two third flow plates 33 are provided, and the two third flow plates 33 are respectively a third A flow plate 331 arranged adjacent to the first flow plate 31 and a third B flow plate 332 arranged adjacent to the second flow plate 32, the length of the third A flow plate 331 is smaller than the length of the third B flow plate 332, wherein the first end of the third B flow plate 332 is closer to the first baffle 35 than the first end of the third A flow plate 331.
[0067] The first end of the third A bypass plate 331 is opposite to the side of the second baffle 38 and has a gap with the second baffle 38, and the first end of the third B bypass plate 332 is spaced from the first baffle 35, so that the two layers of the deceleration component 3 have three branch channels to increase the number of branch channels, so that the airflow flowing out of the primary air inlet 36 can be dispersed into smaller airflows to further improve the deceleration and noise reduction effects.
[0068] In one embodiment, if Figure 4 , Figure 6 and Figure 7 As shown, the air intake channel 129 includes a first air intake channel 113 and a second air intake channel 115. The first air intake channel 113 is formed in the top shell 111. A first opening groove is provided on a side of the top shell 111 close to the bottom shell 112. A second opening groove and a third opening groove 1121 are provided on a side of the bottom shell 112 close to the top shell 111. The first opening groove is correspondingly connected to the second opening groove to enclose a accommodating cavity 116.
[0069] The side plate of the top shell 111 close to the bottom shell 112 is covered on the third opening groove 1121 to form a second air intake channel 115. The first air intake channel 113, the second air intake channel 115, the air flow channel 21 and the air outlet channel 114 are connected in sequence. The speed reducer 3 is installed at the corner of the first air intake channel 113 to stabilize the airflow after turning and avoid eddy currents or turbulence.
[0070] As can be seen from the figure, the air outlet channel 114 and the air inlet channel 129 are independent of each other, and the first air inlet channel 113 and the air outlet channel 114 are not directly connected, so that the airflow in the first air inlet channel 113 will not interfere with the airflow in the air outlet channel 114, thereby avoiding the generation of vortices or turbulence when the turbo fan 2 is working.
[0071] In one embodiment, if Figure 8 and Fig. 9 As shown, the air intake channel 129 also includes a third air intake channel 117. The third air intake channel 117 is formed in the top shell 111, and the first air intake channel 113, the second air intake channel 115, the third air intake channel 117, the air flow channel 21 and the air outlet channel 114 are connected in sequence.
[0072] When the turbo fan 2 is working, the airflow flows downward from the first air inlet channel 113 into the second air inlet channel 115, then flows upward into the third air inlet channel 117, enters the airflow channel 21 of the turbo fan 2, and finally flows out from the air outlet channel 114 in the top shell 111. Therefore, the flow direction of the gas is from top to bottom, and then from bottom to top, so as to reasonably utilize the space, increase the airflow path, and improve the deceleration effect.
[0073] In one embodiment, if Figure 8 and Fig. 9 As shown, a first shock absorber 4 and a second shock absorber 5 are provided in the accommodating cavity 116, and one end of the turbine fan 2 close to the top shell 111 is connected to the top shell 111 through the first shock absorber 4, and one end of the turbine fan 2 close to the bottom shell 112 is connected to the bottom shell 112 through the second shock absorber 5, so as to reduce the noise caused by the turbine vibration through the arrangement of the first shock absorber 4 and the second shock absorber 5.
[0074] In one embodiment, a receiving groove for limiting the position of the turbine fan 2 is provided in the second shock absorber 5, one end of the air intake of the airflow channel 21 of the turbine fan 2 is installed in the receiving groove, and a connecting hole 51 for airflow to pass through is provided in the receiving groove, and the third air intake channel 117 flows downward through the connecting hole 51 and is connected to the airflow channel 21.
[0075] In one embodiment, if Figure 1 and Fig.10 As shown, the humidification heater 120 includes a water tank, which includes a tank body 122, a top cover 121 and a top plate 123. The top cover 121 is covered on the tank body 122 to enclose a water storage chamber 124. The tank body 122 is provided with a humidification air inlet 125 connected to the air outlet channel 114, and the top cover 121 is provided with a humidification air outlet.
[0076] It should be noted that the humidification heater 120 also includes a heating component, which can heat the water in the water tank to form water vapor. The gas in the air outlet channel 114 enters the water storage chamber 124 through the humidification air inlet 125 and mixes with the water vapor to humidify and heat the gas.
[0077] The top plate 123 is connected between the box body 122 and the top cover 121. A fourth opening groove is provided on the side of the top plate 123 close to the top cover 121, and a fifth opening groove is provided on the side of the top cover 121 close to the top plate 123. The fourth opening groove covers the fifth opening groove to enclose an air channel 129 connected to the humidification air inlet 125.
[0078] like Figures 10 to 13As shown, the top plate 123 is provided with a first through hole 127, a second through hole 128 and a third through hole which pass through the two side surfaces in the thickness direction thereof, the third through hole is located between the first through hole 127 and the second through hole 128, an air outlet pipe 1211 is provided on the side of the top cover 121 close to the top plate 123, the top plate 123 is sleeved on the air outlet pipe 1211 through the third through hole, the air outlet pipe 1211 extends into the water storage chamber 124 at one end away from the top cover 121, both ends of the air outlet pipe 1211 are opened, the water storage chamber 124 is connected with the humidification air outlet through the air outlet pipe 1211, the air channel 129, the water storage chamber 124 and the air outlet pipe 1211 are connected in sequence to form a humidification air channel.
[0079] like Figure 3 , Figures 10 to 13 As shown, when the turbo blower 2 is working, the gas in the gas outlet channel 114 flows into the gas channel 129 from the humidification air inlet 125, and the gas in the gas channel 129 is divided into two paths, respectively flowing into the water storage chamber 124 from the first through hole 127 and the second through hole 128, and the two air flows are humidified in the water storage chamber 124 and then integrated into one path, and then flows out from the gas outlet pipe 1211. The water tank can make the gas flowing out of the gas outlet channel 114 flow into the water storage chamber 124 in two paths for humidification, so as to increase the contact area between the gas and the water tank and improve the humidification effect.
[0080] In one embodiment, the water tank further includes a flow guide member, which is disposed in the water storage chamber 124. The flow guide member is provided with a flow guide air duct 126 extending along the height direction of the water storage chamber 124. The flow guide air duct 126 is closed at one end close to the bottom plate of the box body 122, and has an opening at the other end. The flow guide air duct 126 connects the humidification air inlet 125 and the air channel 129.
[0081] Fig.12 The water level line shown in refers to the highest position of the water in the water storage chamber 124. As shown in the figure, the height of the water level line is less than the height of the guide member. When the water tank is placed normally or tilted, the height of the water in the water storage chamber 124 is lower than the height of the guide member. By designing the guide member to have an open top and closed ends, it is possible to prevent water from entering the guide airway 126 and the humidification air inlet 125 and flowing back into the main unit 110 of the ventilator.
[0082] In one embodiment, the water storage chamber 124 is square, and the gas guide member is disposed in the middle of the water storage chamber 124 in the length direction or the width direction.
[0083] In other embodiments, the flow circumference plate may be a straight plate.
[0084] In other embodiments, one side of the first baffle 35 may be connected to the second bending section, and a gap exists between the side of the first baffle 35 facing away from the second bending section and the first bending section. Of course, both sides of the first baffle 35 may have gaps with both the first bending section and the second bending section.
[0085] In other embodiments, the first flow plate 31 and the second flow plate 32 may be arc-shaped as a whole. Of course, the first flow plate 31 and the second flow plate 32 may both be bent, each including two straight sections with a certain angle.
[0086] In other embodiments, the first bending section and the second bending section may be bent toward the outside of the speed reducer 3 .
[0087] In other embodiments, one, three or more third flow-circling plates 33 may be provided.
[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A complete airway of a ventilator, characterized in that: The invention comprises a main unit (110) and a humidifying heater (120), wherein a humidifying airway is formed in the humidifying heater (120), wherein the main unit (110) comprises a turbine fan (2), a fixed shell and a speed reducer (3), wherein the fixed shell comprises a top shell (111) and a bottom shell (112), wherein the top shell (111) covers the bottom shell (112) to enclose a receiving cavity (116) and an air inlet channel (129); the turbine fan (2) is arranged in the receiving cavity (116), wherein an air outlet channel (114) is formed in the top shell (111), and the turbine fan (2) has an air flow channel (21), wherein the air inlet channel (129), the air flow channel (21), the air outlet channel (114) and the humidifying airway are sequentially connected; The deceleration component (3) is installed in the air intake passage (129), and the deceleration component (3) includes a plurality of flow-bending plates distributed at intervals and a partition (34) connected between two adjacent flow-bending plates, a silencer channel for gas circulation is formed between the two adjacent flow-bending plates, the partition (34) is located in the silencer channel and divides the silencer channel into two sub-channels, the first end of the sub-channel forms a silencer air inlet, and the second end of the sub-channel forms a silencer air outlet.
2. The complete airway of the ventilator according to claim 1, characterized in that: The first ends of the plurality of flow circumference sheets are bent toward the same side, the plurality of flow circumference sheets are divided into a first flow circumference sheet (31) located at the innermost side, a second flow circumference sheet (32) located at the outermost side, and a third flow circumference sheet (33) located between the first flow circumference sheet (31) and the second flow circumference sheet (32), the lengths of the first flow circumference sheet (31) and the third flow circumference sheet (33) are both greater than the length of the third flow circumference sheet (33), and the first end of the first flow circumference sheet (31) and the first end of the second flow circumference sheet (32) are close to each other to form a primary air inlet (36) for gas to flow into the branch channel; The interval between the first end of the first flow plate (31) and the first end of the third flow plate (33) forms a first secondary air inlet (37), and the interval between the first end of the second flow plate (32) and the first end of the third flow plate (33) forms a second secondary air inlet (39), and the first secondary air inlet (37) and the second secondary air inlet (39) are connected to the primary air inlet (36) to form the silencer air inlet.
3. The complete airway of the ventilator according to claim 2, characterized in that: The speed reducer (3) further comprises a first baffle (35) arranged in the primary air inlet (36); the first baffle (35) forms an angle with the gas flow direction in the primary air inlet (36) and is vertically fixed on the partition (34); There is a gap between the first baffle plate (35) and the inner wall of the first flow-around plate (31), and / or there is a gap between the first baffle plate (35) and the inner wall of the second flow-around plate (32).
4. The complete airway of the ventilator according to claim 3, characterized in that: The first flow-circling sheet (31) comprises a first straight section and a first bent section, the second flow-circling sheet (32) comprises a second straight section, a third straight section and a second bent section which are connected in sequence, and the first bent section is formed by bending and extending one end of the first straight section; The second straight section is arranged parallel to the first straight section and spaced apart, the third straight section is formed by bending and extending one end of the second straight section, the second bent section is formed by bending and extending the second straight section, and the second bent section is arranged corresponding to the first bent section and bends to the same side as the first bent section; One side of the first baffle (35) is connected to the first bent section, the third straight section extends in a direction perpendicular to the first baffle (35), and a gap exists between the side of the first baffle (35) facing away from the first bent section and the third straight section.
5. The complete airway of the ventilator according to claim 4, characterized in that: The speed reducer (3) further comprises a second baffle (38) arranged at the first secondary air inlet (37), the second baffle (38) and the gas flow direction in the first secondary air inlet (37) forming an angle, the bottom end of the second baffle (38) being connected to the partition (34), and the side surface of the second baffle (38) being connected to the first bending section; There is a gap between the side surface of the second baffle (38) away from the first bending section and the first end of the third flow-circling sheet (33).
6. The complete ventilator airway according to any one of claims 1 to 5, characterized in that: The air inlet channel (129) comprises a first air inlet channel (113) and a second air inlet channel (115), the first air inlet channel (113) being formed in the top shell (111), a first opening groove being provided on a side of the top shell (111) close to the bottom shell (112), a second opening groove and a third opening groove (1121) being provided on a side of the bottom shell (112) close to the top shell (111), the first opening groove being correspondingly connected to the second opening groove to enclose and form the accommodating cavity (116); The side plate of the top shell (111) close to the bottom shell (112) covers the third opening groove (1121) to form the second air intake channel (115); the first air intake channel (113), the second air intake channel (115), the air flow channel (21) and the air outlet channel (114) are connected in sequence; and the speed reduction component (3) is installed in the first air intake channel (113).
7. The complete airway of the ventilator according to claim 6, characterized in that: The air inlet channel (129) further comprises a third air inlet channel (117), wherein the third air inlet channel (117) is formed in the top shell (111), and the first air inlet channel (113), the second air inlet channel (115), the third air inlet channel (117), the air flow channel (21) and the air outlet channel (114) are sequentially connected.
8. The complete ventilator airway according to any one of claims 1 to 5, characterized in that: The humidification heater (120) comprises a water tank, the water tank comprising a tank body (122), a top cover (121) and a top plate (123), the top cover (121) being covered on the tank body (122) to enclose a water storage chamber (124); the tank body (122) is provided with a humidification air inlet (125) communicating with the air outlet channel (114), and the top cover (121) is provided with a humidification air outlet; The top plate (123) is connected between the box body (122) and the top cover (121); a fourth opening groove is provided on a side of the top plate (123) close to the top cover (121); a fifth opening groove is provided on a side of the top cover (121) close to the top plate (123); the fourth opening groove covers the fifth opening groove to enclose and form an air channel (129) communicating with the humidification air inlet (125); The top plate (123) is provided with a first through hole (127), a second through hole (128) and a third through hole which penetrate through the two side surfaces thereof in the thickness direction; the third through hole is located between the first through hole (127) and the second through hole (128); an air outlet pipe (1211) is provided on a side of the top cover (121) close to the top plate (123); the top plate (123) is sleeved on the air outlet pipe (1211) through the third through hole; an end of the air outlet pipe (1211) away from the top cover (121) extends into the water storage chamber (124); both ends of the air outlet pipe (1211) are open; the water storage chamber (124) is connected to the humidification air outlet through the air outlet pipe (1211); the air passage (129), the water storage chamber (124) and the air outlet pipe (1211) are connected in sequence to form the humidification air passage.
9. The complete airway of the ventilator according to claim 8, characterized in that: The water tank further comprises a flow guide member, the flow guide member being arranged in the water storage chamber (124), the flow guide member being provided with a flow guide air channel (126) extending in a height direction of the water storage chamber (124), the flow guide air channel (126) being closed at one end close to the bottom plate of the tank body (122), and having an opening at the other end, the flow guide air channel (126) being connected to the humidification air inlet (125) and the air channel (129).
10. The complete airway of the ventilator according to claim 9, characterized in that: The water storage cavity (124) is square in shape, and the gas flow guide is arranged in the middle of the water storage cavity (124) in the length direction or the width direction.