CN210623215U - Low noise fan device of breathing machine - Google Patents
Low noise fan device of breathing machine Download PDFInfo
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- CN210623215U CN210623215U CN201921185978.4U CN201921185978U CN210623215U CN 210623215 U CN210623215 U CN 210623215U CN 201921185978 U CN201921185978 U CN 201921185978U CN 210623215 U CN210623215 U CN 210623215U
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Abstract
A low-noise blower device of a respirator comprises an upper shell, a middle shell, a lower shell, a blower, an air inlet channel, an air outlet channel, at least one first sound-absorbing cotton and at least one second sound-absorbing cotton. The middle shell comprises an inner cavity, a hole, an air inlet, a first groove and a second groove. The lower casing includes one and is located the lower casing is close to the third groove of mesochite one side, and one is located the lower casing is close to the fourth groove of mesochite one side. The third groove abuts against the first groove and forms the air intake passage together. The fourth groove is abutted against the second groove and forms the air outlet channel together. The fan is arranged in the inner cavity. The second inhale the sound cotton set up in the inner chamber with between the fan. The utility model provides a low noise fan device of breathing machine has the advantage that can effectively the noise reduction.
Description
Technical Field
The utility model belongs to the technical field of the breathing machine, especially the low noise fan device of breathing machine.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing treatment during major surgery, respiratory support therapy, and emergency resuscitation, and has occupied a very important place in the modern medical field as an effective means for manually replacing the function of spontaneous ventilation. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient. And the blower device is an important component of the respirator. The existing ventilator fan device of the respirator can generate great noise in the process of pulling air inflow by the fan and the process of self-rotation of the fan, and the rest of a patient can be influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can effectively reduce the low noise fan device of breathing machine of noise to solve above-mentioned problem.
The low-noise fan device of the breathing machine comprises an upper shell, a middle shell connected with the upper shell, a lower shell connected with the middle shell, a fan arranged in the middle shell, an air inlet channel formed by one side of the middle shell close to the lower shell and one side of the lower shell close to the middle shell, an air outlet channel formed by one side of the middle shell close to the lower shell and one side of the lower shell close to the middle shell, at least one first sound-absorbing cotton arranged in the air inlet channel, and at least one second sound-absorbing cotton arranged in the middle shell, wherein the middle shell comprises an inner cavity, a hole communicated with the inner cavity and the air inlet channel, an air inlet communicated with the air inlet channel, a first groove positioned on one side of the lower shell, and a second groove positioned on one side of the middle shell close to the lower shell, the inferior valve includes that one is located the inferior valve is close to the third groove of mesochite one side, and one is located the inferior valve is close to the fourth groove of mesochite one side, the third groove with first groove butt forms jointly inlet channel, the fourth groove with second groove butt forms jointly outlet channel, the fan set up in the inner chamber, the sound cotton set up in the second the inner chamber with between the fan.
Further, the low noise fan device of breathing machine still include one set up in the mesochite with sealing strip between the inferior valve, the sealing strip include one with the first opening of inlet channel intercommunication, and one with the second opening of outlet channel intercommunication.
Furthermore, the middle shell also comprises a curved flow guide channel arranged at the bottom of the inner cavity.
Further, the flow guide channel comprises a plurality of sections of smoothly connected arcs.
Further, the flow guide channel is S-shaped.
Further, the lower shell also comprises an air outlet hole communicated with the air outlet channel.
Further, the fan comprises a nozzle communicated with the air outlet channel.
Furthermore, the low-noise fan device of the respirator also comprises a sealing ring arranged between the middle shell and the upper shell.
Compared with the prior art, the utility model provides a low noise fan device of breathing machine through set up one by the mesochite with the inlet channel that the inferior valve formed, one by the mesochite with the outlet channel that the inferior valve formed. And the first sound absorption cotton is arranged in the air inlet channel, so that the noise generated by the airflow in the air inlet channel can be reduced. Meanwhile, the second sound-absorbing cotton is arranged in the middle shell and between the fans, so that the noise generated by the self-running of the fans and the flowing of air flow can be further reduced. And because the air coming from the outside does not directly enter the fan but enters the fan from the hole after passing through the air inlet channel, the path of the air flow is lengthened, and the noise generated by the air flow is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of an angle of a low noise fan device of a breathing machine according to the present invention.
Fig. 2 is a schematic view of another angle of the low noise blower device of the ventilator of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, it is a schematic structural diagram of a low noise fan device of a breathing machine provided by the present invention. The low noise fan device of breathing machine includes an epitheca 10, one with mesochite 20 that epitheca 10 is connected, one with inferior valve 30 that mesochite 20 is connected, one set up in fan 40 in mesochite 20, one by mesochite 20 with inlet channel 50 that inferior valve 30 formed, one by mesochite 20 with outlet channel 60 that inferior valve 30 formed, at least one set up in first in inlet channel 50 inhale the sound cotton 70, at least one set up in the cotton 80 is inhaled to second in mesochite 20, one set up in mesochite 20 with sealing strip 90 between the inferior valve 30, and one set up in mesochite 20 with sealing washer 100 between the epitheca 10. There are many ways of connecting the upper shell 10 and the middle shell 20, and between the middle shell 20 and the lower shell 30, such as bolt fixing connection, snap connection, etc., and the fixing connection manner itself is the prior art, and is not described herein again. It is conceivable that the low noise blower device of the ventilator further includes other functional modules, such as a connecting component, a mounting component, etc., but these are well known to those skilled in the art and will not be described in detail herein.
The upper case 10 has a shape matched with that of a side of the middle case 20 adjacent to the upper case 10, which prevents air from escaping from the middle case 20.
The middle shell 20 includes an inner cavity 21, a hole 22 communicating the inner cavity 21 with the air inlet passage 50, an air inlet 23 communicating with the air inlet passage 50, a curved guide passage 24 disposed at the bottom of the inner cavity 21, a first groove 25 located at a side of the middle shell 20 close to the lower shell 30, and a second groove 26 located at a side of the middle shell 20 close to the lower shell 30. The inner cavity 21 may be a groove shape for accommodating the second sound absorbing cotton 80 and the fan 40, and may include bolts, positioning members, etc. to complete the assembly of the second sound absorbing cotton 80 and the fan 40. The hole 22 is a through hole away from the air inlet hole 23 for introducing the air in the air inlet passage 50 into the inner chamber 21. The intake holes 23 are used for the intake of external air into the intake passage 50. The flow directing passage 24 comprises a plurality of smoothly connected arcs. The flow guide channel 24 is curved, and in this embodiment, the flow guide channel 24 is S-shaped. The first groove 25 and the second groove 26 are disposed adjacent to each other, and are used to form the inlet passage 50 and the outlet passage 60, respectively.
The lower case 30 includes an air outlet hole 31 communicating with the air outlet passage 60, a third groove 32 formed at a side of the lower case 30 adjacent to the middle case 20, and a fourth groove 33 formed at a side of the lower case 30 adjacent to the middle case 20. The air outlet hole 31 is disposed below the hole 22, and is used to allow the air compressed by the fan 40 to flow out of the low noise fan device. The third groove 32 is arc-shaped. The third groove 32 and the fourth groove 33 are disposed adjacent to each other. The third groove 32 matches the shape of the first groove 25. The fourth groove 33 matches the shape of the second groove 26. The third groove 32 abuts against the first groove 25 and forms the inlet passage 50 together, and the fourth groove 33 abuts against the second groove 26 and forms the outlet passage 60 together.
The blower 40 is disposed in the inner chamber 21 and is used for compressing air. The blower 40 includes a nozzle 41 in communication with the outlet passage 60. The nozzle 41 is used for communicating the blower 40 and the middle shell 20, so that the compressed air in the blower can flow out to the air outlet channel 60 through the nozzle 41. The fan 40 is a machine that supplies air pressure and discharges air by means of input mechanical energy, and is a driven fluid machine.
The intake passage 50 is located at the bottom of the middle case 20 and is formed by the first groove 25 of the middle case 20 and the third groove 32 of the lower case 30 abutting each other. Since the third groove 32 is curved, the air intake passage 50 is curved in shape in order to lengthen the path through which the air flows and reduce noise.
The outlet channel 60 is arranged side by side with the inlet channel 50. The air outlet passage 60 is located at the bottom of the middle case 20 and is formed by abutting the second groove 26 of the middle case 20 and the fourth groove 33 of the lower case 30. The air outlet channel 60 is communicated with the air outlet hole 31, so that the air flow in the air outlet channel 60 can flow out through the air outlet hole 31.
The first sound-absorbing cotton 70 is disposed between the middle case 20 and the lower case in order to absorb noise of the airflow flowing in the intake passage 50. The first sound-absorbing cotton 70 is an artificial inorganic fiber. The glass is prepared by using natural ores such as quartz sand, limestone, dolomite and the like as main raw materials and matching with chemical raw materials such as sodium carbonate, borax and the like. In a melting state, the fibers are blown by external force and thrown into flocculent fine fibers, and the fibers are crossed and intertwined with each other to form a plurality of fine gaps.
The second sound-absorbing cotton 80 is disposed between the inner cavity 21 and the fan 40. The second sound-absorbing cotton 80 is used for absorbing noise generated by air flow after entering the inner cavity and noise generated by self-rotation of the fan. The second sound-absorbing cotton 80 is an artificial inorganic fiber. The glass is prepared by using natural ores such as quartz sand, limestone, dolomite and the like as main raw materials and matching with chemical raw materials such as sodium carbonate, borax and the like. In a melting state, the fibers are blown by external force and thrown into flocculent fine fibers, and the fibers are crossed and intertwined with each other to form a plurality of fine gaps.
The sealing strip 90 includes a first opening 91 in communication with the inlet passage 50 and a second opening 92 in communication with the outlet passage 60. The first opening 91 is used for communication with the intake passage 50. The second opening 92 is used for communicating with the air outlet channel 60. The sealing strip 90 is used for sealing the joint between the middle shell 20 and the lower shell 30 and preventing air from escaping from the joint between the middle shell 20 and the lower shell 30.
The shape of the sealing ring 100 matches the shape of the edge of the upper shell, and it is used to seal the joint between the middle shell 20 and the upper shell 10 and prevent air from escaping from the contact surface between the upper shell 10 and the middle shell 20.
Compared with the prior art, the utility model provides a low noise fan device of breathing machine through set up one by the mesochite 20 with inlet channel 50 that inferior valve 30 formed, one by the mesochite 20 with outlet channel 60 that inferior valve 30 formed. And a first sound-absorbing cotton 70 is provided in the intake passage 50, so that noise generated by the airflow in the intake passage 50 can be reduced. Meanwhile, the second sound absorption cotton 80 is arranged between the middle shell 20 and the fan 40, so that the noise generated by the self-running of the fan 40 and the flowing of the air flow can be further reduced. And since the outside air does not directly enter the fan 40 but enters the fan 40 from the hole 22 after passing through the air inlet passage 50, the path of the air flow is lengthened, and the noise generated by the air flow is further reduced.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (8)
1. The low noise fan device of breathing machine, its characterized in that: the low noise fan device of the respirator comprises an upper shell, a middle shell connected with the upper shell, a lower shell connected with the middle shell, a fan arranged in the middle shell, an air inlet channel formed by one side of the middle shell close to the lower shell and one side of the lower shell close to the middle shell, an air outlet channel formed by one side of the middle shell close to the lower shell and one side of the lower shell close to the middle shell, at least one first sound-absorbing cotton arranged in the air inlet channel, and at least one second sound-absorbing cotton arranged in the middle shell, wherein the middle shell comprises an inner cavity, a hole communicated with the inner cavity and the air inlet channel, an air inlet communicated with the air inlet channel, a first groove positioned on one side of the middle shell, and a second groove positioned on one side of the middle shell close to the lower shell, the inferior valve includes that one is located the inferior valve is close to the third groove of mesochite one side, and one is located the inferior valve is close to the fourth groove of mesochite one side, the third groove with first groove butt forms jointly inlet channel, the fourth groove with second groove butt forms jointly outlet channel, the fan set up in the inner chamber, the sound cotton set up in the second the inner chamber with between the fan.
2. The low noise blower device of a ventilator according to claim 1, wherein: the low noise fan device of breathing machine still include one set up in the mesochite with sealing strip between the inferior valve, the sealing strip include one with the first opening of inlet channel intercommunication, and one with the second opening of outlet channel intercommunication.
3. The low noise blower device of a ventilator according to claim 1, wherein: the middle shell also comprises a curved flow guide channel arranged at the bottom of the inner cavity.
4. A low noise blower device for a respirator according to claim 3, wherein: the flow guide channel comprises a plurality of sections of smoothly connected arcs.
5. The low noise blower device of claim 4, wherein: the flow guide channel is S-shaped.
6. The low noise blower device of a ventilator according to claim 1, wherein: the lower shell also comprises an air outlet hole communicated with the air outlet channel.
7. The low noise blower device of a ventilator according to claim 1, wherein: the fan comprises a nozzle communicated with the air outlet channel.
8. The low noise blower device of a ventilator according to claim 1, wherein: the low-noise fan device of the respirator also comprises a sealing ring arranged between the middle shell and the upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921185978.4U CN210623215U (en) | 2019-07-25 | 2019-07-25 | Low noise fan device of breathing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921185978.4U CN210623215U (en) | 2019-07-25 | 2019-07-25 | Low noise fan device of breathing machine |
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| CN210623215U true CN210623215U (en) | 2020-05-26 |
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| CN201921185978.4U Active CN210623215U (en) | 2019-07-25 | 2019-07-25 | Low noise fan device of breathing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236606A (en) * | 2021-05-28 | 2021-08-10 | 湖南比扬医疗科技有限公司 | Sound-reducing box and breathing machine |
-
2019
- 2019-07-25 CN CN201921185978.4U patent/CN210623215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236606A (en) * | 2021-05-28 | 2021-08-10 | 湖南比扬医疗科技有限公司 | Sound-reducing box and breathing machine |
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