CN201866828U - Device capable of reducing noise of range hood - Google Patents
Device capable of reducing noise of range hood Download PDFInfo
- Publication number
- CN201866828U CN201866828U CN2010206443759U CN201020644375U CN201866828U CN 201866828 U CN201866828 U CN 201866828U CN 2010206443759 U CN2010206443759 U CN 2010206443759U CN 201020644375 U CN201020644375 U CN 201020644375U CN 201866828 U CN201866828 U CN 201866828U
- Authority
- CN
- China
- Prior art keywords
- motor
- noise
- range hood
- parallel
- capacitor
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 239000006233 lamp black Substances 0.000 claims description 10
- 239000004071 soot Substances 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
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Abstract
The utility model relates to a device capable of reducing noise of a range hood. The device is characterized by comprising a capacitor connected in parallel at the output end of a motor power supply of the range hood. Compared with the prior art, the device has the following advantages: effectively reducing the 50-600Hz pulse amplitude of the motor by connecting the motor in parallel with a proper capacitor to form an integral line, effectively reducing noise with the integral line looking equivalent to a two-stage integral line from outside due to the mechanical inertia of the motor, effectively moving noise spectrum with the parallel connection capacitor equivalent to a frequency selection filter to an external system, avoiding a sensitive area of hearing and also achieving the aim of noise reduction.
Description
Technical field
The utility model relates to a kind of device that can reduce the lampblack absorber noise.
Background technology
Present soot motor adopts four utmost point motors, so motor unavoidably can produce the electrical noise of 200Hz when work, and the motor of work passes to impeller with electrical noise, and then the machine system by spiral case and lampblack absorber, can produce the noise enlarge-effect.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of device that can reduce the lampblack absorber noise at above-mentioned prior art.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this can reduce the device of lampblack absorber noise, is the capacitor in the parallel connection of soot motor power output end.I.e. electric capacity capacitor in parallel between the live wire of motor power-supply wire and zero line, bigger to reduce in the lampblack absorber noise amplitude, be that the frequency multiplication of fundamental frequency has line spectrum (band limits improves the quality of noise 50～600Hz) with 50Hz.
Preferably, the size of this capacitor is 0.1～0.3uf.
Compared with prior art, advantage of the present utility model is: this device passes through to the suitable electric capacity of motor parallel, form the integration circuit, effectively reduce by 50～600Hz pulse amplitude of motor, simultaneously because the machinery inertial of motor, see from the outside just to be equivalent to the two-stage integration circuit, can effectively reduce noise; Shunt capacitance is equivalent to frequency-selecting filter for external system, so can effectively move noise spectrum, avoids the acouesthesia district, reaches the purpose of noise reduction equally.
Description of drawings
Fig. 1 is the manipulated or operated apparatus that reduces the lampblack absorber noise among the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
The utility model provides a kind of device that can reduce the lampblack absorber noise, and this device is to be at the soot motor power output end, i.e. the capacitor C of a 0.2uf in parallel between the live wire of motor power-supply wire and zero line.
Claims (2)
1. the device that can reduce the lampblack absorber noise is characterized in that: the capacitor that is included in the parallel connection of soot motor power output end.
2. the device that can reduce the lampblack absorber noise according to claim 1 is characterized in that: described capacitor is 0.1～0.3uf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206443759U CN201866828U (en) | 2010-11-25 | 2010-11-25 | Device capable of reducing noise of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206443759U CN201866828U (en) | 2010-11-25 | 2010-11-25 | Device capable of reducing noise of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866828U true CN201866828U (en) | 2011-06-15 |
Family
ID=44137982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206443759U Expired - Lifetime CN201866828U (en) | 2010-11-25 | 2010-11-25 | Device capable of reducing noise of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019212425A3 (en) * | 2018-01-18 | 2019-12-12 | Hi̇bsan Havalandirma Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | A magnetic noise inhibitor |
-
2010
- 2010-11-25 CN CN2010206443759U patent/CN201866828U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019212425A3 (en) * | 2018-01-18 | 2019-12-12 | Hi̇bsan Havalandirma Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | A magnetic noise inhibitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |
|
| CX01 | Expiry of patent term |