CN213901179U - Noise-reducing range hood - Google Patents
Noise-reducing range hood Download PDFInfo
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- CN213901179U CN213901179U CN202021723624.3U CN202021723624U CN213901179U CN 213901179 U CN213901179 U CN 213901179U CN 202021723624 U CN202021723624 U CN 202021723624U CN 213901179 U CN213901179 U CN 213901179U
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- 238000012544 monitoring process Methods 0.000 claims abstract description 57
- 230000008030 elimination Effects 0.000 claims abstract description 31
- 238000003379 elimination reaction Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 210000001061 forehead Anatomy 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000036541 health Effects 0.000 abstract description 3
- 210000005069 ears Anatomy 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010033557 Palpitations Diseases 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a noise-reduction range hood, which comprises a range hood body, a sound intensity monitoring unit and a noise elimination unit, wherein the sound intensity monitoring unit and the noise elimination unit are arranged on the range hood body; the noise elimination unit emits noise reduction sound waves with different frequencies and amplitudes according to the detection value of the sound intensity monitoring unit, and the noise reduction sound waves and the noise sound waves are superposed and offset to reduce the noise sound intensity. The sound intensity monitoring unit monitors the noise sound intensity of the range hood in real time, when the noise sound intensity exceeds a specified sound intensity threshold value, the noise reduction unit transmits noise reduction sound waves with certain frequency and wave amplitude, and the noise reduction sound waves and partial sound waves in noise are superposed and offset with each other, so that the effect of reducing the noise of the range hood is achieved; the hearing of the user is prevented from being influenced by the noise, the use experience of the user is improved, and the influence of the noise on the human health is reduced.
Description
Technical Field
The utility model belongs to the technical field of range hood, concretely relates to range hood of making an uproar falls.
Background
In recent years, the domestic cigarette machine market mainly pushes the concepts of large air volume and large suction all the time, and along with the gradual improvement of the air volume, the noise generated by the range hood is also larger and larger. When the range hood is opened during cooking, the voice, the telephone sound, the doorbell sound and the child sound can not be heard, even the strong noise can cause the adverse reactions of dysphoria, headache, palpitation and the like of housewives and kitchen operators, and the long-term use can cause serious influence on the physical and mental health. Therefore, the noise becomes the technical problem to be solved urgently in the existing range hood. Along with the improvement of the requirements of people on the living quality, users pay more and more attention to the noise parameters of the range hood when purchasing the range hood. The quality of the noise performance of the cigarette making machine can be said to be a big key factor of the product competitiveness.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems and the defects existing in the prior art, the utility model aims to provide a noise-reducing range hood which can effectively reduce the noise of the range hood.
In order to achieve the above object, the utility model provides a noise reduction range hood, which comprises a range hood body, a sound intensity monitoring unit and a noise elimination unit, wherein the sound intensity monitoring unit and the noise elimination unit are arranged on the range hood body; the sound intensity monitoring unit detects the noise of the range hood body, and the silencing unit emits noise reduction sound waves with different frequencies and amplitudes according to the detection value of the sound intensity monitoring unit and offsets the noise sound waves in a superposition mode.
Furthermore, the range hood further comprises a video monitoring unit which is arranged on the range hood body and is respectively and electrically connected with the noise elimination unit and the sound intensity monitoring unit; the video monitoring unit is used for capturing the position of the ear of the human body, and the noise elimination unit directionally emits the noise reduction sound wave to the position of the ear of the human body.
Furthermore, the sound intensity monitoring unit, the noise elimination unit and the video monitoring unit are arranged on a forehead panel of the range hood body.
Furthermore, both ends of the forehead panel are provided with a sound intensity monitoring unit, a noise elimination unit and a video monitoring unit.
And the sound intensity monitoring unit, the noise elimination unit and the video monitoring unit are respectively connected with the storage unit in a data transmission manner.
Further, the sound intensity monitoring unit is a sound intensity sensor.
Further, the noise elimination unit is an elimination microphone.
Compared with the prior art, the beneficial effects of the utility model include: the utility model discloses a sound intensity monitoring unit real time monitoring range hood's noise sound intensity, when the noise sound intensity surpassed the sound intensity threshold value of regulation, through the sound wave of making an uproar that falls of noise elimination unit transmission certain frequency and amplitude, with the opposite phase place of the partial sound wave in the noise, this partial noise sound wave with fall the sound wave of making an uproar and superpose mutually and offset, reached the effect that reduces range hood noise, avoid noise influence user's hearing, user's use experience has been promoted, and the influence of noise to human health has been reduced.
Drawings
Fig. 1 is a schematic structural diagram of a noise-reducing range hood according to an embodiment of the present invention;
fig. 2 is a flow chart of the noise-reducing range hood according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a noise-reduction range hood, as shown in fig. 1, comprising a range hood body 1, a sound intensity monitoring unit 2 and a noise elimination unit 3, wherein the sound intensity monitoring unit 2 and the noise elimination unit 3 are arranged on the range hood body 1; the sound intensity monitoring unit 2 detects the noise of the range hood body 1, and the silencing unit 3 emits noise reduction sound waves with different frequencies and amplitudes according to the detection value of the sound intensity monitoring unit 2 and offsets the noise reduction sound waves in a superposition mode.
Adopt above-mentioned structure, the noise intensity of range hood body 1 is monitored in real time to sound intensity monitoring unit 2, when the noise intensity exceeded the sound intensity threshold value of regulation, through the sound wave of making an uproar that falls of noise elimination unit 3 transmission certain frequency and wave amplitude, with the opposite phase place of the part sound wave in the noise, this part noise sound wave and the sound wave of making an uproar of falling superpose mutually and offset, the effect of noise reduction has been reached, avoid noise influence user's hearing, user's use experience has been promoted, and the influence of noise to human health has been reduced. In this embodiment, the sound intensity monitoring unit 2 and the noise elimination unit 3 are preferably installed on the front surface of the range hood body 1, so that the noise detection of the sound intensity monitoring unit 2 can be more facilitated, and the noise elimination unit 3 can more effectively perform noise reduction.
The embodiment also comprises a video monitoring unit 4 which is arranged on the range hood body 1 and is respectively and electrically connected with the noise elimination unit 3 and the sound intensity monitoring unit 2. The video monitoring unit 4 captures the position of the ears of the human body, the sound intensity monitoring unit 2 detects the noise at the position of the ears of the human body, and the noise elimination unit 3 directionally emits noise reduction sound waves to the position of the ears of the human body. Therefore, the noise at the position of the human ear can be pertinently reduced, a human body can directly feel the noise reduction effect, the influence of the noise on the hearing of the ear is reduced, and the hearing range of the human ear is enlarged when the range hood is used
The sound intensity monitoring unit 2, the noise elimination unit 3 and the video monitoring unit 4 are arranged on a forehead panel 11 of the range hood body 1. Therefore, the noise reduction device is closer to the ear position of a human body, and can effectively reduce noise.
In this embodiment, the forehead panel 11 is provided with a sound intensity monitoring unit 2, a noise elimination unit 3 and a video monitoring unit 4 at both ends. The noise reduction range and the noise reduction effect can be further expanded.
The embodiment further comprises a storage unit for storing a database, and the sound intensity monitoring unit 2, the noise elimination unit 3 and the video monitoring unit 4 all call and input data from the database of the storage unit. Therefore, the sound intensity monitoring unit 2, the noise elimination unit 3 and the video monitoring unit 4 can call data in a database, adjust working parameters and quickly and effectively perform noise reduction work.
In this embodiment, the noise elimination unit 3 is preferably a noise elimination microphone, which can better emit noise reduction sound waves; the sound intensity monitoring unit 2 is preferably a sound intensity sensor, which can better detect the noise sound intensity.
The specific workflow of this embodiment is as follows:
as shown in fig. 2, after the range hood body 1 starts to work, the video monitoring unit 4 captures the position information of the human ears, the sound intensity monitoring unit 2 continuously detects the sound intensity of the human ears, and if the sound intensity exceeds 48dB, the noise elimination unit 3 calls the database to emit noise reduction sound waves with corresponding frequencies and amplitudes according to the position information of the human ears detected by the video monitoring unit 4; the noise of the range hood body 1 changes constantly, and the noise elimination unit 3 adjusts the frequency and amplitude of the noise reduction wave, so that the noise reduction wave and part of the noise wave are superposed and offset, and the intensity of the noise is maintained within 48 dB. This reduces the effect of noise on the human ear hearing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A noise reduction range hood is characterized by comprising a range hood body, a sound intensity monitoring unit and a silencing unit, wherein the sound intensity monitoring unit and the silencing unit are arranged on the range hood body; the sound intensity monitoring unit detects the noise of the range hood body, and the silencing unit emits noise reduction sound waves with different frequencies and amplitudes according to the detection value of the sound intensity monitoring unit and offsets the noise sound waves in a superposition mode.
2. The noise-reducing range hood of claim 1, further comprising a video monitoring unit mounted on the range hood body and electrically connected to the noise-eliminating unit and the sound intensity monitoring unit, respectively; the video monitoring unit is used for capturing the position of the ear of the human body, and the noise elimination unit directionally emits the noise reduction sound wave to the position of the ear of the human body.
3. The noise-reducing range hood of claim 2, wherein the sound intensity monitoring unit, the noise elimination unit and the video monitoring unit are mounted on a forehead panel of the range hood body.
4. The noise-reducing range hood according to claim 3, wherein the sound intensity monitoring unit, the noise-eliminating unit and the video monitoring unit are installed at both ends of the forehead panel.
5. The noise-reducing range hood of claim 3, further comprising a storage unit for storing a database, wherein the sound intensity monitoring unit, the noise elimination unit and the video monitoring unit are respectively in data transmission connection with the storage unit.
6. The noise-reducing range hood according to any one of claims 1 to 5, wherein the sound intensity monitoring unit is a sound intensity sensor.
7. The noise-reducing range hood of claim 6, wherein the noise-eliminating unit is a noise-eliminating microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723624.3U CN213901179U (en) | 2020-08-18 | 2020-08-18 | Noise-reducing range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723624.3U CN213901179U (en) | 2020-08-18 | 2020-08-18 | Noise-reducing range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213901179U true CN213901179U (en) | 2021-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021723624.3U Active CN213901179U (en) | 2020-08-18 | 2020-08-18 | Noise-reducing range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213901179U (en) |
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2020
- 2020-08-18 CN CN202021723624.3U patent/CN213901179U/en active Active
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