CN216767804U - Noise reduction mechanism and nursing machine - Google Patents
Noise reduction mechanism and nursing machine Download PDFInfo
- Publication number
- CN216767804U CN216767804U CN202123161683.3U CN202123161683U CN216767804U CN 216767804 U CN216767804 U CN 216767804U CN 202123161683 U CN202123161683 U CN 202123161683U CN 216767804 U CN216767804 U CN 216767804U
- Authority
- CN
- China
- Prior art keywords
- fan
- air
- air inlet
- air outlet
- duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Duct Arrangements (AREA)
Abstract
The application provides a noise reduction mechanism and a nursing machine, wherein the noise reduction mechanism comprises a shell and a fan, the shell is provided with a containing cavity, an air inlet duct and an air outlet duct, and the air inlet duct and the air outlet duct are respectively arranged on two sides of the containing cavity; the fan is accommodated in the accommodating cavity; the air inlet of the fan is communicated with the air inlet duct, the air outlet is communicated with the air outlet duct, the fan is connected with the air inlet duct or the air outlet duct to form a resistance noise elimination channel, the resistance noise elimination channel is used for blocking noise elimination corresponding to air flow in the air inlet duct, the fan and the air outlet duct, and reflection and interference of sound energy are generated, so that the sound energy radiated outwards by the noise reduction mechanism is reduced, the purpose of noise elimination is achieved, and the using effect of the nursing machine is improved.
Description
Technical Field
The application belongs to the technical field of nursing machines, and particularly relates to a noise reduction mechanism and a nursing machine.
Background
With the development of science and technology, the nursing machine is used as a medical instrument, and is used for excreting excrement and urine of a patient with inconvenient movement, and the host machine of the nursing machine sends the excrement and urine of the patient to a sewage box positioned in the host machine under the action of vacuum negative pressure suction, so that the excrement and urine problem of the patient is solved. In the prior art, the airflow flows in the vacuum negative pressure suction system and generates noise to the outside, which results in poor use effect of the nursing machine.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a mechanism and nursing machine of making an uproar falls improves the result of use of nursing machine.
In a first aspect, an embodiment of the present application provides a noise reduction mechanism, including:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with a containing cavity, an air inlet duct and an air outlet duct, and the air inlet duct and the air outlet duct are respectively arranged at two sides of the containing cavity;
the fan is accommodated in the accommodating cavity; the air inlet of the fan is communicated with the air inlet duct, the air outlet of the fan is communicated with the air outlet duct, and the fan is connected with the air inlet duct or the air outlet duct to form a resistance noise elimination channel.
Optionally, the air inlet duct is bent from the air inlet of the housing toward the air inlet of the fan, and has an airflow rotary channel.
Optionally, the air inlet duct has a plurality of, a plurality of the air inlet duct by the air intake of casing assemble in the air intake of fan to the annular arrange in week side of the air intake of fan.
Optionally, the air inlet duct is formed by a bent air deflector; and a circuitous channel is formed by enclosing the air deflectors and communicated with the airflow rotary channel and the air inlet of the fan to form the resistance silencing channel.
Optionally, the air outlet duct is bent from the air outlet of the fan toward the air inlet of the housing, and converges from outside to inside.
Optionally, the air outlet duct includes an outer channel, and the outer channel extends from the air outlet of the fan to the outside and faces the air inlet of the housing.
Optionally, the air outlet of the fan and the air outlet of the housing are coaxially arranged; the air outlet duct also comprises a central channel which is communicated with the air outlet of the fan and the air outlet of the shell, and is communicated with the outer channel along the peripheral side.
Optionally, a plurality of through holes are formed in the peripheral side wall of the central channel, and the through holes communicate the central channel and the air outlet duct; the air outlet duct passes through the via hole and the central channel is communicated with the air outlet of the shell.
Optionally, the fan is a brushless fan.
In a second aspect, an embodiment of the present application provides a nursing machine, which includes the above noise reduction mechanism.
In the noise reduction mechanism and the nursing machine that this application embodiment provided, the fan holds in holding the chamber to with air inlet duct and air outlet duct, the fan is connected and forms the resistance noise elimination passageway with air inlet duct or air outlet duct, correspond the air current that is in air inlet duct, fan and air outlet duct through the resistance noise elimination passageway and block the noise elimination, and produce the reflection of acoustic energy, interfere, thereby reduce by the outside radiant acoustic energy of noise reduction mechanism, in order to reach the mesh of noise elimination, and then improve the result of use of nursing machine.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic view of a noise reduction mechanism provided in an embodiment of the present application.
Fig. 2 is an internal schematic view of a noise reduction mechanism provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The nursing machine is used as a medical appliance and can be a defecation nursing machine, defecation and urination are carried out on a patient who cannot move conveniently, the nursing machine comprises a excrement collector and a host, the excrement collector is used for being mounted on the body of the patient and used for collecting the defecation and urination of the patient, and the host sends the defecation and urination of the patient to a sewage box located in the host under the action of vacuum negative pressure suction, so that the defecation and urination problem of the patient is solved.
The vacuum negative pressure suction of the main machine is provided with the noise reduction mechanism 100, the noise reduction mechanism 100 allows the air flow to flow, and the noise reduction treatment is carried out on the sound generated by the air flow in the flowing process, so that the purpose of noise elimination is achieved, and the using effect of the nursing machine is further improved.
To more clearly explain the structure of the noise reduction mechanism 100, the noise reduction mechanism 100 will be described with reference to the drawings.
Referring to fig. 1 and 2, the noise reduction mechanism 100 includes a housing 10 and a fan 20, and the fan 20 is accommodated in the housing 10 and sucks an air flow in the housing 10.
The casing 10 is formed by connecting a first casing 10a and a second casing 10b, the first casing 10a and the second casing 10b are detachably connected, the first casing 10a and the second casing can enclose to form a containing cavity, the containing cavity is used for containing the fan 20, and the inner wall of the containing cavity is fixedly connected with the motor. In addition, the fan 20 is accommodated in the accommodating chamber; an air inlet of the fan 20 is communicated with the air inlet duct 11, and an air outlet is communicated with the air outlet duct 12. The fan 20, the air inlet duct 11 and the air outlet duct 12 are coaxially arranged. Optionally, the fan 20 is a brushless fan 20, and the brushless fan 20 is simple to assemble, small in size and low in noise.
The casing 10 further has an air inlet duct 11 and an air outlet duct 12, the air inlet duct 11 and the air outlet duct 12 both allow airflow to pass through, the air inlet duct 11 and the air outlet duct 12 are respectively arranged at two sides of the accommodating cavity and communicated with the accommodating cavity, so that the fan 20 in the accommodating cavity conveys the airflow of the air inlet duct 11 to the air outlet duct 12 under negative pressure.
The air inlet duct 11 is bent from the air inlet of the housing 10 toward the air inlet of the fan 20, and is provided with an airflow rotary channel 111, wherein the air inlet duct 11 is connected with the fan 20 to form a resistant muffling channel, and the resistant muffling channel blocks and muffles the airflow in the air inlet duct 11 and the fan 20, and generates reflection and interference of sound energy, so that the sound energy radiated outwards by the noise reduction mechanism 100 is reduced, the purpose of muffling is achieved, and the use effect of the nursing machine is improved.
The air inlet channels 11 are multiple, the multiple air inlet channels 11 are converged at the air inlet of the fan 20 from the air inlet of the housing 10, and are annularly arranged on the periphery of the air inlet of the fan 20, wherein the multiple air inlet channels 11 divide the air flow entering from the air inlet of the housing 10 to the air inlet of the fan 20 along different paths, and the air flow entering from the air inlet of the housing 10 flows in the corresponding reactive noise elimination channels, and generates reflection and interference of sound energy, thereby reducing the sound energy radiated outwards by the noise reduction mechanism 100, and further providing the noise reduction effect of the noise reduction mechanism 100 by performing multi-path noise elimination on the air flow entering from the air inlet of the housing 10.
The air inlet duct 11 is formed by a bent air deflector and supplies air flow along the bending direction of the air deflector, so that the air flow bends and flows in the air inlet duct 11 and contacts with the inner wall of the air deflector, the air flow flows in the air deflector along the bending direction and performs reactive noise elimination, and the noise of the air flow in the air inlet duct 11 is weakened.
A circuitous channel 112 is enclosed between a plurality of air deflectors near the air inlet of the fan 20, and connects the airflow return channel 111 and the air inlet of the fan 20 in parallel, and forms a resistant noise elimination channel, wherein the circuitous channel 112 and the airflow return channel 111 are in bending communication, and the flow direction of the airflow is changed, so that the noise generated by the airflow is weakened, and the noise reduction effect of the noise reduction mechanism 100 is ensured.
Optionally, the air deflector is conical, and the aperture is gradually enlarged to reduce the wind resistance of the inlet air and ensure the flow of the air flow in the air deflector.
The air outlet duct 12 is bent from the air outlet of the fan 20 toward the air inlet of the casing 10 and converges from the outside to the inside, and in the bending process of the air outlet duct 12, the air flow flowing through the air outlet of the fan 20 bends and flows along with the bending of the air outlet duct 12. The fan 20 is connected with the air outlet duct 12 to form a resistance noise elimination channel, and the resistance noise elimination channel is used for blocking and eliminating noise corresponding to air flows in the air inlet duct 11, the fan 20 and the air outlet duct 12 and generating reflection and interference of sound energy, so that the sound energy radiated outwards by the noise reduction mechanism 100 is reduced, the purpose of eliminating noise is achieved, and the using effect of the nursing machine is further improved.
The central passage communicates with the air outlet of the blower 20 and the air outlet of the casing 10, and communicates with the outer passage 121 along the peripheral side. A plurality of through holes 123 are formed in the peripheral side wall of the central channel, and the through holes 123 are communicated with the central channel and the air outlet duct 12; the air outlet duct 12 is communicated with the air outlet of the casing 10 through the hole 123 and the central channel.
In the through hole 123, the air flow flowing through the outer channel 121 flows into the central channel through the hole 123, while the air flow flowing through the central channel flows toward the air outlet of the housing 10 along the axial direction, and the air flow flowing through the central channel and the air flow flowing through the outer channel 121 cancel each other out, so that the noise resistance of the air flows is cancelled out, and the noise elimination amount is large.
In the noise reduction mechanism 100 and the nursing machine provided by the embodiment of the application, the fan 20 is accommodated in the accommodating cavity, and is connected with the air inlet duct 11 and the air outlet duct 12, the fan 20 is connected with the air inlet duct 11 or the air outlet duct 12 to form the resistance noise elimination channel, the resistance noise elimination channel is used for correspondingly blocking the noise elimination of the air flow in the air inlet duct 11, the fan 20 and the air outlet duct 12, and the reflection and interference of sound energy are generated, so that the sound energy radiated outwards by the noise reduction mechanism 100 is reduced, the purpose of noise elimination is achieved, and the use effect of the nursing machine is further improved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. The noise reduction mechanism provided by the embodiment of the present application is described in detail above, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A noise reduction mechanism, comprising:
the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with a containing cavity, an air inlet duct and an air outlet duct, and the air inlet duct and the air outlet duct are respectively arranged at two sides of the containing cavity;
the fan is accommodated in the accommodating cavity; the air inlet of the fan is communicated with the air inlet duct, the air outlet of the fan is communicated with the air outlet duct, and the fan is connected with the air inlet duct or the air outlet duct to form a resistance noise elimination channel.
2. The noise reduction mechanism of claim 1, wherein the air inlet duct is bent from the air inlet of the housing toward the air inlet of the fan and has an air flow turning channel.
3. The noise reduction mechanism according to claim 2, wherein the plurality of air inlet ducts are gathered from the air inlet of the housing to the air inlet of the fan, and are annularly arranged around the air inlet of the fan.
4. The noise reduction mechanism of claim 3, wherein the inlet air duct is formed by a bent air deflector; and a circuitous channel is formed by enclosing the air deflectors and communicated with the airflow rotary channel and the air inlet of the fan to form the resistance silencing channel.
5. The noise reduction mechanism of claim 1, wherein the outlet duct is bent from the outlet of the fan toward the inlet of the housing and converges from the outside to the inside.
6. The noise reduction mechanism of claim 5, wherein the air outlet duct comprises an outer channel extending from the air outlet of the fan towards the outside and towards the air inlet of the housing.
7. The noise reduction mechanism of claim 6, wherein the air outlet of the fan and the air outlet of the housing are coaxially arranged; the air outlet duct also comprises a central channel which is communicated with the air outlet of the fan and the air outlet of the shell, and is communicated with the outer channel along the peripheral side.
8. The noise reduction mechanism according to claim 7, wherein a plurality of through holes are formed in a peripheral sidewall of the central channel, and the through holes communicate the central channel and the outlet duct; the air outlet duct is communicated with the air outlet of the shell through the through hole and the central channel.
9. The noise reduction mechanism of any of claims 1-8, wherein the fan is a brushless fan.
10. A care machine comprising a noise reduction mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123161683.3U CN216767804U (en) | 2021-12-15 | 2021-12-15 | Noise reduction mechanism and nursing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123161683.3U CN216767804U (en) | 2021-12-15 | 2021-12-15 | Noise reduction mechanism and nursing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767804U true CN216767804U (en) | 2022-06-17 |
Family
ID=81967749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123161683.3U Active CN216767804U (en) | 2021-12-15 | 2021-12-15 | Noise reduction mechanism and nursing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767804U (en) |
-
2021
- 2021-12-15 CN CN202123161683.3U patent/CN216767804U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202386031U (en) | Noise reducing structure of hairdryer | |
| CN206755301U (en) | A kind of noise reduction range hood | |
| CN206889349U (en) | Noise reduction volute and range hood with same | |
| CN216767804U (en) | Noise reduction mechanism and nursing machine | |
| CN115306766B (en) | Air duct module structure and breathing machine | |
| US20230030268A1 (en) | Ventilator | |
| CN207230677U (en) | A kind of near-suction type oil smoke suction machine | |
| CN112555942A (en) | Noise reduction structure of range hood and range hood | |
| CN106422017A (en) | Blower device for breathing machine | |
| CN214837366U (en) | Machine and air conditioning system in spiral case, new trend power component, air conditioning | |
| CN212479715U (en) | Silencing device | |
| CN115507065A (en) | Low-noise breathing machine air source box | |
| CN210203039U (en) | Multifunctional deodorization mite-killing machine | |
| CN111442516A (en) | A air exchange system noise control device for in low noise room | |
| CN218722218U (en) | Noise elimination and reduction device in air conditioner | |
| CN220707463U (en) | Multi-motor controlled ventilation and heating integrated linear bathroom heater | |
| CN220404534U (en) | Noise reduction device of breast pump and breast pump | |
| CN216868599U (en) | Exhaust device and integrated kitchen | |
| EP3973813A1 (en) | Handheld electric hair dryer | |
| CN220385571U (en) | Integrated respirator | |
| CN215523772U (en) | Air inlet structure and water heater | |
| CN211513004U (en) | Noise reduction structure for ventilation therapy device and ventilation therapy device | |
| CN217267182U (en) | Backpack hair-dryer | |
| CN204900295U (en) | Active noise reduction air discharge fan | |
| CN217594241U (en) | Oxygen generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |