CN111396956A - Range hood with vibration/noise reduction structure - Google Patents
Range hood with vibration/noise reduction structure Download PDFInfo
- Publication number
- CN111396956A CN111396956A CN202010376456.3A CN202010376456A CN111396956A CN 111396956 A CN111396956 A CN 111396956A CN 202010376456 A CN202010376456 A CN 202010376456A CN 111396956 A CN111396956 A CN 111396956A
- Authority
- CN
- China
- Prior art keywords
- fan
- shock absorption
- damping
- noise reduction
- sound
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a range hood with a shock absorption and noise reduction structure, which comprises a smoke collection hood, a fan shell arranged on the smoke collection hood and a fan arranged in the fan shell, wherein a noise reduction device is arranged in the fan shell and comprises a shock absorption seat and a plurality of sound absorption plates, the shock absorption seat comprises a shock absorption cover plate and a shock absorption base, the fan is arranged on the shock absorption cover plate, the shock absorption base is fixedly connected with two sides of the fan shell, a gap for air to pass through is reserved between the shock absorption base and the fan shell, a first magnetic sheet is embedded at the bottom of the shock absorption base, a second magnetic sheet is arranged on the shock absorption base, the polarity of the first magnetic sheet is the same as that of the second magnetic sheet, the plurality of sound absorption plates are circumferentially arranged on the inner wall of the fan shell below the fan. The cooperation of the damping base and the sound-absorbing board greatly reduces the noise of the range hood.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a range hood with a shock absorption and noise reduction structure.
Background
The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.
The range hood in the prior art generally uses sound absorption cotton for sound absorption and noise reduction, but the sound absorption effect of the sound absorption cotton is limited, and the centrifugal fan vibrates in the using process to generate noise,
disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a range hood with a shock absorption and noise reduction structure.
The invention provides a range hood with a shock absorption and noise reduction structure, which comprises a smoke collection hood, a fan shell arranged on the smoke collection hood and a fan arranged in the fan shell, wherein a noise reduction device is arranged in the fan shell and comprises a shock absorption seat and a plurality of sound absorption boards;
the damping base comprises a damping cover plate and a damping base, the bottom of the fan is fixed on the damping cover plate through a bolt, the damping base is fixedly connected with two sides of the fan shell, a gap for air to pass through is reserved between the damping base and the fan shell, the damping base is a groove body with an open top, a sliding block matched with the shape of the groove body is arranged at the position, corresponding to the groove body, of the damping cover plate, and the sliding block and the groove body are connected in a vertical sliding mode;
a first magnetic sheet is embedded at the bottom of the sliding block, a sliding plate which slides up and down along the groove body is arranged in the groove body in a sliding mode, a second magnetic sheet is arranged in the sliding plate, the polarities of the first magnetic sheet and the second magnetic sheet are the same, and a plurality of damping springs are arranged between the sliding plate and the bottom of the groove body;
on a plurality of abatvoix arranged the fan casing inner wall that is located the fan below along circumference, one side in the middle of the abatvoix orientation fan casing is equipped with a plurality of sound archs of inhaling, every inhales the sound arch and has seted up at least one and inhale the sound mouth, and abatvoix inside is equipped with a plurality of bending or spiral inner chamber, and the length of inner chamber is greater than inhales the sound plate thickness, and a plurality of inner chambers and a plurality of sound mouthful one-to-one ground intercommunication of inhaling, and the abatvoix adopts porous.
Preferably, both ends of the shock absorption cover plate extend downwards and inwards to form a first extension part, the shock absorption base opposite to the first extension part extends outwards to form a second extension part, and the second extension part is arranged on the movable stroke of the first extension part.
Preferably, the top surface of the sliding plate is provided with an elastic magnetic conduction plate.
Preferably, a cavity is left between the sound-absorbing panel and the fan housing.
According to the invention, the damping cover plate, the damping base, the first magnetic sheet and the second magnetic sheet form a magnetic suspension damping device, a fan arranged on the damping cover plate is damped, and the damping spring is used for further absorbing sound and vibrating, so that vibration noise is obviously reduced, and the sound absorption effect of the sound absorption plate at low frequency can be effectively improved through a Helmholtz resonance structure formed by an attraction port and an inner cavity in the sound absorption plate, and the sound absorption plate is made of porous sound absorption materials, so that the inner cavity can generate a coupling effect with micropores in the porous sound absorption materials, the low-frequency sound absorption performance is further improved, and the broadband sound absorption effect of the range hood is effectively improved. In conclusion, the noise of the range hood is greatly reduced by the cooperation of the damping base and the sound absorption plate.
Drawings
Fig. 1 is a schematic structural diagram of a range hood with a vibration and noise reduction structure according to the present invention.
Fig. 2 is a schematic view of the structure of the sound-absorbing panel of the present invention.
Description of reference numerals:
1-fume collecting hood 2-fan shell 3-fan 4-acoustic board 41-acoustic bump 5-damping base 6-damping cover plate 7-first magnetic sheet 8-sliding plate 9-damping spring
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
As shown in fig. 1-2, fig. 1 is a schematic structural diagram of a range hood with a vibration/noise reduction structure according to the present invention; fig. 2 is a schematic view of the structure of the sound-absorbing panel 4 of the present invention.
Referring to fig. 1 and 2, the range hood with the shock absorption and noise reduction structure provided by the invention comprises a fan shell 2 and a fan 3, wherein the smoke collection hood 1 is arranged on the smoke collection hood 1, the fan 3 is arranged in the fan shell 2, and a noise reduction device is arranged in the fan shell 2 and comprises a shock absorption seat and a plurality of sound absorption boards 4;
the damping base comprises a damping cover plate 6 and a damping base 5, the bottom of the fan 3 is fixed on the damping cover plate 6 through a bolt, the damping base 5 is fixedly connected with two sides of the fan shell 2, a gap for air to pass through is reserved between the damping base 5 and the fan shell 2, the damping base 5 is a groove body with an open top, a sliding block matched with the shape of the groove body is arranged at the position, corresponding to the groove body, of the damping cover plate 6, and the sliding block and the groove body are connected in a vertical sliding mode;
a first magnetic sheet 7 is embedded at the bottom of the sliding block, a sliding plate 8 which slides up and down along the groove body is arranged in the groove body in a sliding mode, a second magnetic sheet is arranged in the sliding plate 8, the polarity of the first magnetic sheet 7 is the same as that of the second magnetic sheet, and a plurality of damping springs 9 are arranged between the sliding plate 8 and the bottom of the groove body;
on a plurality of abatvoix 4 arranged the fan casing 2 inner wall that is located fan 3 below along circumference, abatvoix 4 was equipped with a plurality of sound of inhaling protruding 41 towards one side in the middle of fan casing 2, every is inhaled sound protruding 41 and has been seted up at least one and inhale the sound mouth, abatvoix 4 is inside to be equipped with a plurality of crooked or spiral inner chambers, the length of inner chamber is greater than abatvoix 4's thickness, a plurality of inner chambers communicate with a plurality of sound mouths one-to-one of inhaling, abatvoix 4 adopts porous sound absorbing material to make.
According to the invention, the damping cover plate 6, the damping base 5, the first magnetic sheet 7 and the second magnetic sheet form a magnetic suspension damping device, the fan 3 arranged on the damping cover plate 6 is damped, and the damping spring 9 is used for further absorbing sound and vibration, so that vibration noise is obviously reduced, and the sound absorption effect of the sound absorption plate 4 at low frequency can be effectively improved through a Helmholtz resonance structure formed by an attraction port and an inner cavity in the sound absorption plate 4, and the sound absorption plate 4 is made of a porous sound absorption material, so that the inner cavity can generate a coupling effect with micropores in the porous sound absorption material, the low-frequency sound absorption performance is further improved, and the broadband sound absorption effect of the range hood is effectively improved. In conclusion, the noise of the range hood is greatly reduced by the cooperation of the damping base 5 and the sound-absorbing plate 4.
In order to avoid the shock absorption cover plate 6 from separating from the shock absorption base 5 and ensure the stability of the fan in use, in the embodiment, two ends of the shock absorption cover plate 6 extend downwards and inwards to form a first extension part, the shock absorption base 5 opposite to the first extension part extends outwards to form a second extension part, and the second extension part is on the movable stroke of the first extension part.
In order to avoid the vibration of the fan 3, the damping cover plate 6 collides with the damping base 5 to keep the distance between the first magnetic sheet 7 and the second magnetic sheet, in this embodiment, the top surface of the sliding plate 8 is provided with an elastic magnetic conductive plate.
In order to improve the broadband sound absorption effect, in the present embodiment, a cavity is left between the sound absorption plate 4 and the fan housing 2.
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 person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A range hood with a shock absorption and noise reduction structure is characterized by comprising a fan shell (2) and a fan (3), wherein the fan shell (2) is arranged on a fume collecting hood (1), the fan (3) is installed in the fan shell (2), a noise reduction device is arranged in the fan shell (2), and the noise reduction device comprises a shock absorption seat and a plurality of sound absorption boards (4);
the damping seat comprises a damping cover plate (6) and a damping base (5), the bottom of the fan (3) is fixed on the damping cover plate (6) through a bolt, the damping base (5) is fixedly connected with the two sides of the fan shell (2), a gap for air to pass through is reserved between the damping base (5) and the fan shell (2), the damping base (5) is a groove body with an open top, a sliding block matched with the shape of the groove body is arranged at the position, corresponding to the groove body, of the damping cover plate (6), and the sliding block and the groove body are connected in a vertical sliding mode;
a first magnetic sheet (7) is embedded at the bottom of the sliding block, a sliding plate (8) which slides up and down along the groove body is arranged in the groove body in a sliding mode, a second magnetic sheet is arranged in the sliding plate (8), the first magnetic sheet (7) and the second magnetic sheet have the same polarity, and a plurality of damping springs (9) are arranged between the sliding plate (8) and the bottom of the groove body;
a plurality of abatvoix (4) are arranged along circumference and are located fan casing (2) inner wall of fan (3) below, abatvoix (4) are equipped with a plurality of sound of inhaling arch (41) towards one side in the middle of fan casing (2), every is inhaled protruding (41) and has been seted up at least one and is inhaled the sound mouth, abatvoix (4) inside is equipped with a plurality of bending or spiral inner chamber, the length of inner chamber is greater than the thickness of abatvoix (4), a plurality of inner chambers and a plurality of sound mouth one-to-one ground intercommunication of inhaling, abatvoix (4) adopt porous sound absorbing material to make.
2. The range hood with the shock absorption and noise reduction structure according to claim 1, wherein two ends of the shock absorption cover plate (6) extend downwards and inwards to form a first extension portion, the shock absorption base (5) opposite to the first extension portion extends outwards to form a second extension portion, and the second extension portion is located on the moving stroke of the first extension portion.
3. The range hood with the shock absorption and noise reduction structure according to claim 1, wherein the top surface of the sliding plate (8) is provided with an elastic magnetic conductive plate.
4. The range hood with the shock absorption and noise reduction structure according to claim 1, wherein a cavity is left between the sound absorption plate (4) and the fan housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376456.3A CN111396956A (en) | 2020-05-07 | 2020-05-07 | Range hood with vibration/noise reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010376456.3A CN111396956A (en) | 2020-05-07 | 2020-05-07 | Range hood with vibration/noise reduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396956A true CN111396956A (en) | 2020-07-10 |
Family
ID=71437402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010376456.3A Pending CN111396956A (en) | 2020-05-07 | 2020-05-07 | Range hood with vibration/noise reduction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396956A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926779A (en) * | 2020-08-13 | 2020-11-13 | 安徽省万豪水坝节能技术有限公司 | Sound-proof noise-reducing bottom cross shaft plate-turning steel gate dam |
| CN114251695A (en) * | 2020-09-24 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil fume suction device |
| CN114776638A (en) * | 2022-05-30 | 2022-07-22 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
| CN115874727A (en) * | 2022-11-26 | 2023-03-31 | 圣晖系统集成集团股份有限公司 | Toilet's physics falls device of making an uproar |
| CN117738945A (en) * | 2024-02-20 | 2024-03-22 | 四川川工泵业有限公司 | Self priming pump mounting structure that vibration/noise reduction was fallen |
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| EP0596846A1 (en) * | 1992-11-03 | 1994-05-11 | Aktiebolaget Electrolux | Kitchen ventilator |
| EP0716272A2 (en) * | 1994-12-05 | 1996-06-12 | Gaggenau-Werke Haus- und Lufttechnik GmbH | Low-noise fume extracting hood |
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| CN204830091U (en) * | 2015-07-06 | 2015-12-02 | 苏州斯洛莱自动化设备有限公司 | But lampblack absorber of amortization |
| CN206054615U (en) * | 2016-09-30 | 2017-03-29 | 吉首大学 | Electronic equipment platform with sine wave damping shock absorption and disk cartridge thermometer |
| CN106871204A (en) * | 2017-03-31 | 2017-06-20 | 广东美的厨房电器制造有限公司 | Range hood |
| CN206592473U (en) * | 2016-12-28 | 2017-10-27 | 兰州城市学院 | A kind of packing machine damping device |
| CN207065678U (en) * | 2017-08-10 | 2018-03-02 | 董珊燕 | A kind of lampblack absorber of low noise |
| CN208186472U (en) * | 2018-05-16 | 2018-12-04 | 珠海格力电器股份有限公司 | Fume exhaust fan |
| CN110374935A (en) * | 2019-08-05 | 2019-10-25 | 杭州老板电器股份有限公司 | A kind of smoke machine of smoke machine noise-reduction method, the device and application device |
| CN110939960A (en) * | 2018-09-22 | 2020-03-31 | 宁波方太厨具有限公司 | Range hood with noise reduction structure |
| CN111022381A (en) * | 2020-01-03 | 2020-04-17 | 宁波方太厨具有限公司 | Flow guide noise reduction device and range hood applying same |
-
2020
- 2020-05-07 CN CN202010376456.3A patent/CN111396956A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0596846A1 (en) * | 1992-11-03 | 1994-05-11 | Aktiebolaget Electrolux | Kitchen ventilator |
| EP0716272A2 (en) * | 1994-12-05 | 1996-06-12 | Gaggenau-Werke Haus- und Lufttechnik GmbH | Low-noise fume extracting hood |
| CN101165419A (en) * | 2006-10-17 | 2008-04-23 | 杨瑞宁 | Indoor exhaust method |
| CN101067434A (en) * | 2007-06-06 | 2007-11-07 | 张珂 | Magnetic vibration reducing method and vibration dampener |
| CN202117189U (en) * | 2011-05-18 | 2012-01-18 | 余常勇 | GRG (glass-fiber reinforced gypsum) acoustic absorption plate |
| CN102995781A (en) * | 2011-09-13 | 2013-03-27 | 马伟 | Sound-absorbing device |
| CN204830091U (en) * | 2015-07-06 | 2015-12-02 | 苏州斯洛莱自动化设备有限公司 | But lampblack absorber of amortization |
| CN206054615U (en) * | 2016-09-30 | 2017-03-29 | 吉首大学 | Electronic equipment platform with sine wave damping shock absorption and disk cartridge thermometer |
| CN206592473U (en) * | 2016-12-28 | 2017-10-27 | 兰州城市学院 | A kind of packing machine damping device |
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| CN110374935A (en) * | 2019-08-05 | 2019-10-25 | 杭州老板电器股份有限公司 | A kind of smoke machine of smoke machine noise-reduction method, the device and application device |
| CN111022381A (en) * | 2020-01-03 | 2020-04-17 | 宁波方太厨具有限公司 | Flow guide noise reduction device and range hood applying same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926779A (en) * | 2020-08-13 | 2020-11-13 | 安徽省万豪水坝节能技术有限公司 | Sound-proof noise-reducing bottom cross shaft plate-turning steel gate dam |
| CN114251695A (en) * | 2020-09-24 | 2022-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil fume suction device |
| CN114776638A (en) * | 2022-05-30 | 2022-07-22 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
| CN114776638B (en) * | 2022-05-30 | 2024-06-07 | 贵州汇天诚安全设施有限公司 | Low-noise cabinet type centrifugal fan |
| CN115874727A (en) * | 2022-11-26 | 2023-03-31 | 圣晖系统集成集团股份有限公司 | Toilet's physics falls device of making an uproar |
| CN115874727B (en) * | 2022-11-26 | 2023-10-13 | 圣晖系统集成集团股份有限公司 | Clean room physical noise reduction device |
| CN117738945A (en) * | 2024-02-20 | 2024-03-22 | 四川川工泵业有限公司 | Self priming pump mounting structure that vibration/noise reduction was fallen |
| CN117738945B (en) * | 2024-02-20 | 2024-05-03 | 四川川工泵业有限公司 | Self priming pump mounting structure that vibration/noise reduction was fallen |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200710 |
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| RJ01 | Rejection of invention patent application after publication |