CN211059090U - Noise reduction fan - Google Patents
Noise reduction fan Download PDFInfo
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- CN211059090U CN211059090U CN201922232222.7U CN201922232222U CN211059090U CN 211059090 U CN211059090 U CN 211059090U CN 201922232222 U CN201922232222 U CN 201922232222U CN 211059090 U CN211059090 U CN 211059090U
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- absorbing
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- noise reduction
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Abstract
The utility model particularly relates to a fan of making an uproar falls, including fan apron, back shell and wind wheel, fan apron is connected with the back shell, and the wind wheel is located the back shell, and the back shell is fixed with the motor, and the motor is connected with the wind wheel, and fan apron is equipped with the apron air intake, wherein: be equipped with in the back shell and inhale the sound procapsid and inhale sound back casing, inhale and be equipped with preceding wind channel in the sound procapsid, inhale and be equipped with the back wind channel in the sound back casing, preceding wind channel constitutes with the back wind channel and falls the wind channel of making an uproar, and the wind wheel is located the wind channel of making an uproar. The utility model has the advantages that: this structure is through inhaling the sound procapsid and inhaling the sound back casing combination and use, inhales the sound procapsid and inhales the noise that the sound back casing can absorb wind wheel and motor production respectively, plays the implementation and falls the effect of making an uproar.
Description
Technical Field
The utility model relates to a lampblack absorber technical field specifically is a fan of making an uproar falls.
Background
The range hood is one of the necessary equipment in the family kitchen. At present, the range hood mainly comprises a smoke collecting hood, an air inlet box above the smoke collecting hood, a fan volute inside the air inlet box, a multi-wing impeller inside the fan and a motor for driving the impeller to rotate. The fan volute consists of a front side cover plate, a rear side cover plate and a middle annular body connected with the two sides, wherein the front side cover plate and the rear side cover plate are respectively provided with air inlets with the same size and are provided with a current collector. The impeller is positioned in the middle annular body between the front side cover plate and the rear side cover plate, and the motor is fixed on the rear side cover plate. When the range hood works, the multi-wing fan impeller is driven to rotate by the motor, a front side air inlet channel is formed between the front side cover plate of the volute and the air inlet box, a rear side air inlet channel is formed between the rear side cover plate and the air inlet box, and a negative pressure is formed at an impeller inlet through the rotation action of the multi-wing fan impeller, so that external oil smoke gas enters the smoke collecting hood and flows into the air inlet channel formed by the air inlet box and the front side cover plate and the rear side cover plate, the smoke can be sucked into the range hood, and the purpose of removing the oil smoke is achieved.
However, the smoke entering the air inlet box from the smoke collecting hood directly impacts the annular curved surface of the fan volute and then flows into the air inlet channels on the two sides of the air inlet box until entering the fan inlets on the two sides. The air flow of the range hood directly impacts the curved surface of the volute, so that the bottom of the volute of the fan can generate serious turbulent flow, and the surfaces of the front side cover plate and the rear side cover plate are separated in a flowing mode, so that high noise is generated.
Disclosure of Invention
An object of the utility model is to overcome the not enough of above-mentioned prior art, provide a fan of making an uproar falls of effect of making an uproar is fallen in implementation.
The utility model discloses a fan of making an uproar falls, including fan apron, back shell and wind wheel, fan apron is connected with the back shell, and the wind wheel is located the back shell, and the back shell is fixed with the motor, and the motor is connected with the wind wheel, and fan apron is equipped with the apron air intake, wherein: be equipped with in the back shell and inhale the sound procapsid and inhale sound back casing, inhale and be equipped with preceding wind channel in the sound procapsid, inhale and be equipped with the back wind channel in the sound back casing, preceding wind channel constitutes with the back wind channel and falls the wind channel of making an uproar, and the wind wheel is located the wind channel of making an uproar.
Specifically, the sound-absorbing front housing is provided with a first through opening.
Specifically, the back of the sound-absorbing front shell is provided with a convex part, the front surface of the sound-absorbing rear shell is provided with a concave part, and the convex part is arranged in the concave part, so that the sound-absorbing front shell and the sound-absorbing rear shell cannot move mutually.
Specifically, the sound-absorbing front shell is a felt sound-absorbing shell, an inorganic fiber sound-absorbing shell or a polymer foam sound-absorbing shell.
Specifically, the sound-absorbing rear shell is a felt sound-absorbing shell, an inorganic fiber sound-absorbing shell or a polymer foam sound-absorbing shell.
Specifically, the fan cover plate is disposed to abut against a front surface of the sound-absorbing front case.
Specifically, the rear housing, the sound-absorbing front housing and the sound-absorbing rear housing are matched in size.
Specifically, the air outlet of the noise reduction air duct is communicated with the outlet of the rear shell.
The utility model has the advantages that: this structure is through inhaling the sound procapsid and inhaling the sound back casing combination and use, inhales the sound procapsid and inhales the noise that the sound back casing can absorb wind wheel and motor production respectively, plays the implementation and falls the effect of making an uproar.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded schematic view of the present invention.
Fig. 3 is a schematic view of a sound absorbing front housing structure.
The following figures are diagrammatic illustrations:
the sound-absorbing fan comprises a fan cover plate 1, a cover plate air inlet 101, a sound-absorbing front shell 2, a first through hole 201, a convex part 202, a front air duct 203, a sound-absorbing rear shell 3, a rear air duct 301, a concave part 302, a rear shell 4 and a wind wheel 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the utility model discloses a fan of making an uproar falls, including fan apron 1, rear housing 4 and wind wheel 5, fan apron 1 is connected with rear housing 4, and wind wheel 5 is located rear housing 4, and rear housing 4 is fixed with the motor, and the motor is connected with wind wheel 5, and fan apron 1 is equipped with apron air intake 101, wherein: be equipped with in the back shell 4 and inhale sound procapsid 2 and inhale sound back casing 3, inhale and be equipped with preceding wind channel 203 in the sound procapsid 2, inhale and be equipped with back wind channel 301 in the sound back casing 3, preceding wind channel 203 constitutes the wind channel of making an uproar with back wind channel 301, wind wheel 5 is located the wind channel of making an uproar.
This structure is through inhaling sound procapsid 2 and inhaling 3 combination uses of sound back casing, inhales sound procapsid 2 and inhales the noise that sound back casing 3 can absorb wind wheel 4 and motor production respectively, plays the implementation and falls the effect of making an uproar.
Inhale sound procapsid 2 and be equipped with first opening 201. Motor drive wind wheel 5 rotates, produces the negative pressure to absorb the external world through first opening 201, on the cigarette machine was applied to this structure, the effect of implementing the oil absorption cigarette. Further, a convex portion 202 is provided on the back surface of the sound-absorbing front case 2, a concave portion 302 is provided on the front surface of the sound-absorbing rear case 3, and the convex portion 202 is placed in the concave portion 302 so that the sound-absorbing front case 2 and the sound-absorbing rear case 3 cannot move relative to each other. The sound-absorbing front shell 2 is a felt sound-absorbing shell, an inorganic fiber sound-absorbing shell or a polymer foam sound-absorbing shell. Inhale sound back casing 3 and inhale sound casing or inorganic fiber and inhale sound casing or polymer foaming and inhale the sound casing for the felt, inhale sound procapsid 2 and inhale sound back casing 3 and have the sound effect of inhaling, further reduce the noise that fan and wind wheel 5 produced.
The fan cover plate 1 of the utility model is pressed against the front surface of the sound-absorbing front shell 2 and used for limiting the position of the sound-absorbing front shell 2; in addition, the rear casing 4, the sound-absorbing front casing 2, and the sound-absorbing rear casing 3 are adapted in size. The rear casing 4 can house the sound-absorbing front case 2 and the sound-absorbing rear case 3 and restrict the positions of the sound-absorbing front case 2 and the sound-absorbing rear case 3. Moreover, the air outlet of the noise reduction air duct is communicated with the outlet of the rear shell 4, so that the smoke exhaust effect is realized.
The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides a fan of making an uproar falls, includes fan apron (1), back shell (4) and wind wheel (5), and fan apron (1) is connected with back shell (4), and wind wheel (5) are located back shell (4), and back shell (4) are fixed with the motor, and the motor is connected with wind wheel (5), and fan apron (1) is equipped with apron air intake (101), its characterized in that: be equipped with in back shell (4) and inhale sound procapsid (2) and inhale sound back casing (3), inhale and be equipped with preceding wind channel (203) in sound procapsid (2), inhale and be equipped with back wind channel (301) in sound back casing (3), preceding wind channel (203) and back wind channel (301) constitute the wind channel of making an uproar, wind wheel (5) are located the wind channel of making an uproar.
2. The noise reduction fan according to claim 1, wherein: the sound-absorbing front shell (2) is provided with a first through opening (201).
3. The noise reduction fan according to claim 1, wherein: the back of the sound-absorbing front shell (2) is provided with a convex part (202), the front surface of the sound-absorbing rear shell (3) is provided with a concave part (302), and the convex part (202) is arranged in the concave part (302), so that the sound-absorbing front shell (2) and the sound-absorbing rear shell (3) cannot move mutually.
4. The noise reduction fan according to claim 1, wherein: the sound-absorbing front shell (2) is a felt sound-absorbing shell or an inorganic fiber sound-absorbing shell or a polymer foam sound-absorbing shell.
5. The noise reduction fan according to claim 1, wherein: the sound-absorbing rear shell (3) is a felt sound-absorbing shell or an inorganic fiber sound-absorbing shell or a polymer foam sound-absorbing shell.
6. The noise reduction fan according to claim 1, wherein: the fan cover plate (1) is arranged on the front surface of the sound-absorbing front shell (2).
7. The noise reduction fan according to claim 1, wherein: the size between back shell (4), sound absorption procapsid (2) and sound absorption back casing (3) looks adaptation.
8. The noise reduction fan according to claim 1, wherein: and the air outlet of the noise reduction air duct is communicated with the outlet of the rear shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922232222.7U CN211059090U (en) | 2019-12-13 | 2019-12-13 | Noise reduction fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922232222.7U CN211059090U (en) | 2019-12-13 | 2019-12-13 | Noise reduction fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211059090U true CN211059090U (en) | 2020-07-21 |
Family
ID=71594131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922232222.7U Active CN211059090U (en) | 2019-12-13 | 2019-12-13 | Noise reduction fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211059090U (en) |
-
2019
- 2019-12-13 CN CN201922232222.7U patent/CN211059090U/en active Active
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