CN217402636U - Smoke ventilator and tuber pipe seat thereof - Google Patents
Smoke ventilator and tuber pipe seat thereof Download PDFInfo
- Publication number
- CN217402636U CN217402636U CN202220784162.9U CN202220784162U CN217402636U CN 217402636 U CN217402636 U CN 217402636U CN 202220784162 U CN202220784162 U CN 202220784162U CN 217402636 U CN217402636 U CN 217402636U
- Authority
- CN
- China
- Prior art keywords
- microphone
- pipe seat
- loudspeaker
- hole
- range hood
- 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
Abstract
The application provides a modified smoke ventilator and tuber pipe seat thereof. The range hood comprises a machine shell (1), a fan (2) arranged in the machine shell (1), a smoke collecting hood (3) arranged below the machine shell (1), a wind pipe seat (4) arranged above the machine shell (1), and a first active noise reduction device used for reducing noise generated by the fan (2); the first active noise reduction device comprises a first microphone (5), a first loudspeaker (6) and a first control module; the first microphone (5) and the first loudspeaker (6) are electrically connected to the first control module; the first microphone (5) and the first loudspeaker (6) are fixed on the wind pipe base (4). By adopting the technical scheme, the noise reduction effect can be obviously improved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a smoke ventilator field especially relates to smoke ventilator's tuber pipe seat.
[ background of the invention ]
In asian regions, the amount of oil in the smoke produced during cooking is particularly high due to traditional cooking practices of stir-frying. Therefore, a range hood for exhausting oil smoke generated during cooking becomes an important household appliance essential in daily life at home. With the increasing demand of people on the quality of life, the noise problem of the range hood becomes the focus of attention increasingly. However, the existing noise reduction scheme of the range hood is not ideal, and needs to be further improved.
Unless otherwise supported by sufficient evidence, the prior art described herein is not meant to be an admission that such prior art is widely known to those of ordinary skill in the art to which this application pertains prior to the filing date of the present application.
[ summary of the invention ]
It is an object of this application embodiment to at least one technical problem above, propose an improved smoke ventilator and tuber pipe seat thereof.
One embodiment of the application relates to a range hood, which comprises a shell, a fan arranged in the shell, a smoke collecting hood arranged below the shell, an air pipe seat arranged above the shell, and a first active noise reduction device used for reducing noise generated by the fan; the first active noise reduction device comprises a first microphone, a first loudspeaker and a first control module; the first microphone and the first loudspeaker are electrically connected to the first control module; the first microphone and the first loudspeaker are fixed on the wind pipe seat. By adopting the technical scheme, the noise reduction effect can be obviously improved.
In one possible design, the wall body of the wind pipe seat is provided with a first through hole; the first microphone is arranged to penetrate through the first through hole from outside to inside and is placed into the wind pipe seat until the shell of the first microphone is fixed on the outer wall of the wind pipe seat and blocks the first through hole.
In one possible design, the wall body of the wind pipe seat is provided with a first through hole; the first microphone is arranged to penetrate through the first through hole from outside to inside and is placed into the wind pipe seat until the shell of the first microphone is fixed on the outer wall of the wind pipe seat and plugs the first through hole; the wall body of the air duct base is provided with a second through hole; the first loudspeaker is arranged to penetrate through the second through hole from outside to inside and is placed into the wind pipe seat until the shell of the first loudspeaker is fixed on the outer wall of the wind pipe seat and blocks the second through hole.
In one possible design, the number of the first microphones is multiple, and the first microphones are sequentially arranged along the circumferential direction of the wind pipe seat; and/or the number of the first loudspeakers is multiple, and the first loudspeakers are sequentially arranged along the circumferential direction of the wind pipe seat. Thus, the noise reduction effect is improved.
In one possible design, the duct base is a plastic one-piece part.
In one possible design, the first microphone is fixed at the air inlet port of the wind pipe seat; the first loudspeaker is fixed at the air outlet port of the air pipe seat. Thus, the noise reduction effect is improved.
In one possible design, the active noise reduction device further comprises a second active noise reduction device for reducing noise generated by the fan, wherein the second active noise reduction device comprises a second microphone, a second loudspeaker and a second control module; the second microphone and the second loudspeaker are electrically connected to the second control module; and the second microphone and the second loudspeaker are both arranged below the fan. Thus, the noise reduction effect is improved.
In one possible design, the housing comprises a first accommodating space and a second accommodating space which are arranged in sequence from top to bottom; in both the first accommodating space and the second accommodating space, the fan is only arranged in the first accommodating space; in both the first accommodating space and the second accommodating space, the second microphone and the second speaker are both disposed only in the second accommodating space.
In one possible design, the first control module and the second control module share at least some of the components.
One embodiment of the application relates to a wind pipe base, which is provided with a first through hole and is suitable for installing the first microphone of the range hood.
In this case, the directional expressions such as "from top to bottom", "below" and "above" in the present application are based on the usual use state of the range hood, unless otherwise specified.
It should be noted that the appearances of "first" and "second" in this specification are for illustrative purposes only and are not intended to indicate relative importance; moreover, it is not a definition of the number of features that it defines; further, it is not a definition of a logical or sequential relationship to the features it defines.
The above summary of the present application is not intended to describe all possible implementations of the present application. Throughout this application, guidance is provided through lists of examples, which can be used in various possible combinations.
[ description of the drawings ]
The following drawings are merely illustrative and explanatory of the present application and do not limit the scope of the present application, wherein:
FIG. 1 is a schematic structural diagram of an embodiment of a range hood of the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is another schematic structural view of an embodiment of a range hood of the present application;
fig. 4 is a schematic view of another structure of an embodiment of a range hood according to the present application.
Reference numerals:
1-machine shell, 2-fan, 3-smoke collecting hood, 4-wind pipe seat, 5-first microphone, 6-first loudspeaker, 7-second microphone, 8-second loudspeaker, 9-electrical box, 10-filter screen and 11-oil cup.
[ detailed description ] embodiments
To make the objects, solutions and advantages of the present application more clear, the present application is further described below with reference to the accompanying drawings and preferred embodiments.
The application provides a smoke ventilator embodiment, including casing 1, set up fan 2 in casing 1, set up in the collection petticoat pipe 3 of casing 1 below, set up in the tuber pipe seat 4 of casing 1 top, the first device of making an uproar, the second device of making an uproar of falling initiatively, electrical apparatus box 9, filter screen 10 and oil cup 11 of making an uproar of falling initiatively. Specifically, the fan 2 is a centrifugal fan. The filter screen 10 is disposed at the airflow outlet of the smoke collecting hood 3, and as shown in fig. 2, the oil cup 11 is suspended at the bottom end of the filter screen 10. When the fan 2 operates, the smoke collecting cover 3 collects oil smoke and guides the oil smoke to flow to the airflow outlet, flows through the filter screen 10, then flows into the casing 1, then flows through the fan 2, then flows into the air duct base 4, and then is discharged into the common flue.
And the first active noise reduction device is positioned above the fan 2. And the second active noise reduction device is positioned below the fan 2.
And the first active noise reduction device is used for reducing the noise generated by the fan 2. The first active noise reduction device comprises a first microphone 5, a first loudspeaker 6 and a first control module. And the first microphone 5 and the first loudspeaker 6 are electrically connected to the first control module. The first microphone 5 and the first speaker 6 are fixed to the duct base 4. Specifically, the first microphone 5 and the first speaker 6 are integrated with the air duct base 4, and form an integral component with the air duct base 4.
The wall body of the wind pipe seat 4 is provided with a first through hole. The first microphone 5 is arranged to penetrate through the first through hole from outside to inside and is placed in the wind pipe seat 4 until the shell of the first microphone 5 is fixed on the outer wall of the wind pipe seat 4 and blocks the first through hole; that is, the first through hole is blocked by the first microphone 5, as shown in fig. 2 to 4. And a second through hole is formed in the wall body of the air duct seat 4. The first loudspeaker 6 is arranged to penetrate through the second through hole from outside to inside and is placed into the wind pipe seat 4 until the shell of the first loudspeaker 6 is fixed on the outer wall of the wind pipe seat 4 and blocks the second through hole; i.e. the second through hole is closed off by the first loudspeaker 6, as shown in fig. 3 and 4.
The first microphone 5 is fixed at the air inlet port of the air pipe seat 4; the first speaker 6 is fixed at the air outlet port of the air duct base 4, as shown in fig. 3 and 4. The first microphone 5 is closer to the noise source "fan 2" than the corresponding first speaker 6. After the first control module receives the noise signal detected by the first microphone 5, the first control module performs corresponding analysis processing, and then the first control module controls the first speaker 6 to emit a sound signal for canceling the noise signal. However, the first control module requires a certain response time for "analysis processing", and within this response time, the noise signal has propagated a certain distance; therefore, in order to ensure the noise reduction effect, the first speaker 6 should be spaced apart from the first microphone 5 by a certain distance. The first microphone 5 is fixed at the air inlet port of the air pipe seat 4; the first loudspeaker 6 is fixed at the air outlet port of the air duct base 4', so that the distance between the first loudspeaker 6 and the first microphone 5 is ensured to the maximum, and the noise reduction effect is improved. The arrangement of the first loudspeaker 6 and the first microphone 5 is advantageous for noise reduction, considering that the air duct base 4 is an important noise collection area.
The first microphone 5 is located below the first speaker 6; the first microphone 5 and the first speaker 6, one on the left side and one on the right side, are disposed opposite to each other as shown in fig. 4.
And the second active noise reduction device is also used for reducing the noise generated by the fan 2. And the second active noise reduction device comprises a second microphone 7, a second loudspeaker 8 and a second control module. And the second microphone 7 and the second loudspeaker 8 are electrically connected to the second control module. A second microphone 7 and a second loudspeaker 8, both arranged below the fan 2, are shown in fig. 2 and 4. The second microphone 7 is closer to the noise source "fan 2" than the corresponding second speaker 8.
The housing 1 includes a first receiving space and a second receiving space sequentially arranged from top to bottom. The first accommodating space and the second accommodating space are communicated. In both the first accommodation space and the second accommodation space, the blower 2 is disposed only in the first accommodation space, as shown in fig. 2 and 4. In both the first and second accommodation spaces, the second microphone 7 and the second speaker 8 are both disposed only in the second accommodation space, as shown in fig. 2 and 4. The second accommodating space is communicated with the airflow outlet of the fume collecting hood 3. The casing 1 is in a rectangular shape and comprises a front wall, a left wall, a rear wall and a right wall which are connected in sequence. The front wall, the left wall, the rear wall and the right wall jointly surround to form a first accommodating space and a second accommodating space. The range hood structures shown in fig. 3 and 4 are visual effect diagrams after the front wall is removed.
The first control module and the second control module are both arranged in the electrical box 9. The first control module and the second control module share at least part of the elements.
It should be noted that, since the air flow is filtered by the filter screen 10 before flowing into the casing 1 and the duct base 4, the adhesion of grease on the first microphone 5, the first speaker 6, the second microphone 7 and the second speaker 8 can be reduced to some extent.
It should be noted that, the Active Noise reduction (ANC) technique, also called Active Noise Control (ANC) technique, adopted by the first Active Noise reduction device and the second Active Noise reduction device is a technique of generating an acoustic signal with a phase opposite to that of the Noise and a frequency and an amplitude identical to or as close as possible to that of the Noise, and interfering with the Noise signal to cancel the acoustic wave.
The application also provides an air duct base 4 embodiment which is provided with a first through hole and is suitable for installing the first microphone 5 of the range hood embodiment. The embodiment of the air duct base 4 is further provided with a second through hole suitable for installing the first loudspeaker 6 of the range hood embodiment. The air pipe seat 4 is a plastic integrated piece, namely the air pipe seat 4 is made of plastic through integral injection molding. For the detailed structure of the embodiment of the air duct base 4, see the related description of the above-mentioned embodiment of the range hood.
The foregoing is merely one embodiment of the present application and other embodiments may be devised by adding, deleting, modifying or replacing certain features. For example, the number of the first microphones may be multiple, and the first microphones are sequentially arranged along the circumferential direction of the air pipe seat; the quantity of first speaker is a plurality of, sets gradually along the circumference of tuber pipe seat.
The elements of the different embodiments may be combined with each other in any feasible manner to achieve the object of the application.
It should be additionally noted that the present application should not be construed as limited to the above-described embodiments, but rather should be construed to cover all possible embodiments as determined by the claims that follow when taken in conjunction with the disclosure herein. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are within the protection scope of the present application, unless departing from the content of the present application.
Claims (10)
1. The utility model provides a range hood, includes casing (1), set up in fan (2) in casing (1), set up in casing (1) below collection petticoat pipe (3) with set up in tuber pipe seat (4) of casing (1) top, its characterized in that:
the first active noise reduction device is used for reducing noise generated by the fan (2);
the first active noise reduction device comprises a first microphone (5), a first loudspeaker (6) and a first control module;
the first microphone (5) and the first loudspeaker (6) are electrically connected to the first control module;
the first microphone (5) and the first loudspeaker (6) are fixed on the wind pipe seat (4).
2. The range hood of claim 1, wherein:
the wall body of the air duct base (4) is provided with a first through hole;
the first microphone (5) is arranged to penetrate through the first through hole from outside to inside and is placed into the wind pipe seat (4) until the shell of the first microphone (5) is fixed on the outer wall of the wind pipe seat (4) and plugs the first through hole.
3. The range hood of claim 1, wherein:
the wall body of the air duct base (4) is provided with a first through hole;
the first microphone (5) is arranged to penetrate through the first through hole from outside to inside and is placed into the wind pipe seat (4) until the shell of the first microphone (5) is fixed on the outer wall of the wind pipe seat (4) and plugs the first through hole;
the wall body of the air duct base (4) is provided with a second through hole;
the first loudspeaker (6) is arranged to penetrate through the second through hole from outside to inside and is placed into the wind pipe seat (4) until the shell of the first loudspeaker (6) is fixed on the outer wall of the wind pipe seat (4) and blocks the second through hole.
4. The range hood of claim 1, wherein:
the number of the first microphones (5) is multiple, and the first microphones are sequentially arranged along the circumferential direction of the wind pipe seat (4); and/or the presence of a gas in the gas,
the number of the first loudspeakers (6) is multiple, and the first loudspeakers are sequentially arranged along the circumferential direction of the wind pipe seat (4).
5. The range hood of claim 4, wherein:
the air pipe seat (4) is a plastic integrated piece.
6. The range hood of claim 1, wherein:
the first microphone (5) is fixed at the air inlet port of the air pipe seat (4);
the first loudspeaker (6) is fixed at an air outlet of the air duct base (4).
7. The range hood of any one of claims 1 to 6, wherein:
the second active noise reduction device is used for reducing noise generated by the fan (2) and comprises a second microphone (7), a second loudspeaker (8) and a second control module;
the second microphone (7) and the second loudspeaker (8) are electrically connected to the second control module;
and the second microphone (7) and the second loudspeaker (8) are both arranged below the fan (2).
8. The range hood of claim 7, wherein:
the shell (1) comprises a first accommodating space and a second accommodating space which are sequentially arranged from top to bottom;
in both the first and second accommodation spaces, the fan (2) is disposed only in the first accommodation space;
in both the first and second accommodation spaces, the second microphone (7) and the second speaker (8) are disposed only in the second accommodation space.
9. The range hood of claim 7, wherein:
the first control module and the second control module share at least part of elements.
10. An air duct base is characterized in that:
provided with a first through hole suitable for mounting said first microphone (5) of the extractor hood according to claim 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220784162.9U CN217402636U (en) | 2022-04-06 | 2022-04-06 | Smoke ventilator and tuber pipe seat thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220784162.9U CN217402636U (en) | 2022-04-06 | 2022-04-06 | Smoke ventilator and tuber pipe seat thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217402636U true CN217402636U (en) | 2022-09-09 |
Family
ID=83141261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220784162.9U Active CN217402636U (en) | 2022-04-06 | 2022-04-06 | Smoke ventilator and tuber pipe seat thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217402636U (en) |
-
2022
- 2022-04-06 CN CN202220784162.9U patent/CN217402636U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107741045B (en) | Range hood with active noise reduction function | |
| CN217402636U (en) | Smoke ventilator and tuber pipe seat thereof | |
| CN206001563U (en) | A kind of range hood | |
| CN218119838U (en) | Smoke exhaust ventilator | |
| CN217682494U (en) | Smoke ventilator subassembly, smoke ventilator | |
| CN111685645A (en) | Active noise reduction system for dust collector and dust collector with active noise reduction system | |
| CN215109702U (en) | A fan subassembly and robot of sweeping floor for sweeping floor robot | |
| CN111096708B (en) | Air outlet cover assembly of dust collector and dust collector with same | |
| CN219550621U (en) | Smoke exhaust ventilator and active noise reduction device thereof | |
| CN111380091B (en) | Filtering and noise-reducing device and range hood applying same | |
| CN218328305U (en) | Smoke ventilator and device of making an uproar falls in initiative thereof | |
| CN217402635U (en) | Smoke ventilator and wind channel subassembly thereof | |
| CN210425164U (en) | Smoke machine with mute noise reduction and oil smoke separation | |
| CN109268894B (en) | Combined system of smoke kitchen range | |
| CN218328300U (en) | Smoke exhaust ventilator | |
| CN208237948U (en) | Range hood | |
| CN208237953U (en) | Range hood | |
| CN218328331U (en) | Noise-reducing range hood | |
| CN214406195U (en) | Global noise-shielding smoke machine | |
| CN108386889A (en) | Range hood | |
| CN216557256U (en) | Fume exhaust fan | |
| CN215571290U (en) | Smoke guide plate, smoke hood assembly and gas water heater | |
| JP6405533B2 (en) | Range food | |
| CN217428953U (en) | Silence case and cleaning device | |
| CN216079970U (en) | Fume exhaust fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |