CN209743254U - Smoke exhaust ventilator - Google Patents
Smoke exhaust ventilator Download PDFInfo
- Publication number
- CN209743254U CN209743254U CN201821849926.8U CN201821849926U CN209743254U CN 209743254 U CN209743254 U CN 209743254U CN 201821849926 U CN201821849926 U CN 201821849926U CN 209743254 U CN209743254 U CN 209743254U
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- baffle
- volute
- air inlet
- range hood
- noise
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Abstract
The utility model provides a range hood, which relates to the technical field of kitchen appliances, and comprises a volute provided with an air inlet and an impeller rotatably arranged in the volute, wherein a first baffle and a second baffle are fixedly arranged on the volute; the first baffle and the second baffle are arranged oppositely and are located on the outer side of the air inlet in the circumferential direction. The range hood comprises a shell and the low-noise fan, wherein a suction opening is formed in one side, facing a kitchen range, of the shell, and an air inlet is opposite to the suction opening. The low-noise fan and the range hood relieve the problem of high pneumatic noise of the existing fan.
Description
Technical Field
The utility model belongs to the technical field of the kitchen appliance technique and specifically relates to a range hood is related to.
Background
With the rapid development of science and technology and the rapid increase of social economy, the living standard of people is increasingly improved, and therefore, the requirements of people on the quality of life are higher and higher.
As is well known, cooking is closely related to people's daily life, and thus, as the quality of life is continuously improved, people have higher and higher requirements for kitchen cooking environments. In order to achieve better oil fume suction effect, various manufacturers have introduced a range hood with large air volume and large suction force by combining with the unique cooking habits of China. However, the problem of high aerodynamic noise of the fan is also accompanied when the range hood provides large suction force.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a low noise fan to alleviate the higher technical problem of pneumatic noise of fan among the range hood that exists among the prior art.
The utility model provides a low-noise fan, which comprises a volute provided with an air inlet and an impeller rotatably arranged in the volute, wherein a first baffle and a second baffle are fixedly arranged on the volute; the first baffle and the second baffle are arranged oppositely and are located on the outer side of the air inlet in the circumferential direction.
Furthermore, one of the first baffle and the second baffle is located on the left side of the air inlet, and the other one of the first baffle and the second baffle is located on the right side of the air inlet.
Further, the first baffle plate is in threaded connection or welded with the volute, and the second baffle plate is in threaded connection or welded with the volute.
The utility model provides a beneficial effect that low noise fan compares with prior art does:
the utility model provides a low-noise fan, which comprises a volute provided with an air inlet and an impeller rotatably arranged in the volute, wherein a first baffle and a second baffle are fixedly arranged on the volute; the first baffle and the second baffle are arranged oppositely and are located on the outer side of the air inlet in the circumferential direction. When range hood uses the utility model provides a during the low noise fan, can block the propagation of noise at the relative first baffle and the second baffle that sets up in the both sides of spiral case air intake, play the effect that reduces spiral case air intake noise, be favorable to reducing the aerodynamic noise of fan. In addition, the first baffle and the second baffle which are oppositely arranged at the two sides of the volute air inlet can also prevent oil smoke from diffusing, and the oil smoke absorption effect of the range hood is favorably improved.
A second object of the present invention is to provide a range hood to alleviate the technical problem of the fan's pneumatic noise is higher among the range hoods existing among the prior art.
The utility model provides a range hood includes casing and above-mentioned content low noise fan, one side that the casing was towards cooking utensils is provided with the suction mouth, the air intake is just right the suction mouth.
Furthermore, one end of the first baffle and one end of the second baffle, which are back to the volute, are both tightly abutted to the casing.
Furthermore, the range hood is a side-draft range hood, a third baffle is fixedly arranged on the volute and is positioned on the upper side of the air inlet, and one end of the third baffle, which is back to the volute, is tightly abutted to the casing.
Furthermore, one end of the left end and the right end of the third baffle is connected with the first baffle, and the other end of the third baffle is connected with the second baffle.
Furthermore, the range hood is a ceiling range hood, a fourth baffle and a fifth baffle are fixedly arranged on the volute, one of the fourth baffle and the fifth baffle is arranged in front of the air inlet, and the other of the fourth baffle and the fifth baffle is arranged at the rear side of the air inlet.
Furthermore, one end of the fourth baffle and one end of the fifth baffle, which are far away from the volute, are both tightly abutted to the casing.
The utility model provides a range hood compares beneficial effect does with prior art:
the utility model provides a range hood includes above-mentioned low noise fan, and the first baffle and the second baffle that set up relatively in the both sides of spiral case air intake can block the propagation of noise, play the effect that reduces spiral case air intake noise, are favorable to reducing the aerodynamic noise of fan. In addition, the first baffle and the second baffle which are oppositely arranged at the two sides of the volute air inlet can also prevent oil smoke from diffusing, and the oil smoke absorption effect of the range hood is favorably improved.
A third object of the present invention is to provide a range hood to alleviate the technical problem of high aerodynamic noise of the fan in the range hood existing in the prior art.
The utility model provides a range hood which comprises a casing, a volute arranged in the casing and an impeller rotatably arranged in the volute, wherein one side of the casing facing to a cooker is provided with a suction port, the volute is provided with an air inlet, and the air inlet is opposite to the suction port;
The suction device is characterized in that a first baffle and a second baffle are fixedly arranged on the machine shell, the first baffle and the second baffle are arranged oppositely, one of the first baffle and the second baffle is positioned on the left side of the suction port, and the other one of the first baffle and the second baffle is positioned on the right side of the suction port.
The utility model provides a range hood compares beneficial effect does with prior art:
The utility model provides a range hood which comprises a casing, a volute arranged in the casing and an impeller rotatably arranged in the volute, wherein one side of the casing facing a cooker is provided with a suction port, the volute is provided with an air inlet, and the air inlet is opposite to the suction port; a first baffle and a second baffle are fixedly arranged on the machine shell, the first baffle and the second baffle are arranged oppositely, one of the first baffle and the second baffle is positioned on the left side of the suction opening, and the other one of the first baffle and the second baffle is positioned on the right side of the suction opening. The first baffle and the second baffle which are oppositely arranged on the left side and the right side of the suction opening of the casing can block the transmission of noise, play a role in reducing the noise of the air inlet of the volute and be beneficial to reducing the pneumatic noise of the fan. In addition, the first baffle and the second baffle which are oppositely arranged at the left side and the right side of the suction port of the shell can also prevent oil smoke from diffusing, and the oil smoke absorption effect of the range hood is favorably improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a connection diagram of a volute, a first baffle and a second baffle in a range hood provided by an embodiment of the present invention;
FIG. 2 is an exploded view of the volute and the first and second baffles shown in FIG. 1.
Icon: 100-a volute; 101-an air inlet; 200-a first baffle; 300-a second baffle; 301-second cuff.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
example one
As shown in fig. 1 and fig. 2, the low noise fan provided in this embodiment includes a volute 100 provided with an air inlet 101, and an impeller rotatably disposed in the volute 100, wherein a first baffle 200 and a second baffle 300 are fixedly disposed on the volute 100. The first baffle 200 and the second baffle 300 are disposed opposite to each other and are both located at the outer side of the air inlet 101 in the circumferential direction.
When the range hood uses the low-noise fan provided by the embodiment, the first baffle 200 and the second baffle 300 which are oppositely arranged at two sides of the volute air inlet can block the transmission of noise, so that the effect of reducing the noise of the volute air inlet is achieved, and the reduction of the pneumatic noise of the fan is facilitated.
In addition, the first baffle 200 and the second baffle 300 which are oppositely arranged at the two sides of the volute air inlet can also prevent oil smoke from diffusing, and the oil smoke absorption effect of the range hood can be favorably improved.
as can be seen from the fact that the first baffle 200 and the second baffle 300 are both located outside the air inlet 101 in the circumferential direction: the distance between the first baffle 200 and the second baffle 300 is larger than the diameter of the air inlet 101.
The shapes of the first baffle 200 and the second baffle 300 may be regular or irregular, and the specific shapes may be designed according to the actual structural space of the range hood.
In an alternative solution of this embodiment, one of the first baffle 200 and the second baffle 300 is located at the left side of the air inlet 101, and the other is located at the right side of the air inlet 101.
The first baffle 200 and the second baffle 300 are distributed on the left side and the right side of the air inlet 101, so that the noise at the air inlet 101 can be reduced in the left-right direction, and the diffusion of oil smoke is reduced.
In this embodiment, as a specific implementation manner, the first baffle 200 may be located at the left side of the intake vent 101, and the second baffle 300 may be located at the right side of the intake vent 101.
In this embodiment, as another specific possible implementation manner, the second baffle 300 may be located at the left side of the intake vent 101, and the first baffle 200 may be located at the right side of the intake vent 101.
In an alternative solution of this embodiment, the first baffle 200 is screwed or welded to the volute 100, and the second baffle 300 is screwed or welded to the volute 100.
The first and second baffle plates 200 and 300 are both screwed or welded to the volute 100, so that the connection between the first and second baffle plates 200 and 300 and the volute 100 is more convenient.
Specifically, as shown in fig. 1 and 2, when the first baffle 200 is in threaded connection with the volute 100, a first flange may be disposed at one end of the first baffle 200, which is connected to the volute 100, and a plurality of first connection holes are disposed at intervals on the first flange, second connection holes corresponding to the first connection holes one to one are disposed on the volute 100, and bolts pass through the first connection holes and the second connection holes to fix the first baffle 200 and the volute 100.
Similarly, when the second baffle 300 is in threaded connection with the volute 100, a second flange 301 may be disposed at one end of the second baffle 300 connected with the volute 100, a plurality of third connecting holes are disposed at intervals on the second flange 301, fourth connecting holes corresponding to the third connecting holes one to one are disposed on the volute 100, and bolts pass through the third connecting holes and the fourth connecting holes to fix the second baffle 300 and the volute 100.
It should be noted that, the connection between the first baffle 200 and the second baffle 300 and the volute 100, including but not limited to the above two, may also be other connection.
Example two
The range hood that this embodiment provided includes the casing and the low noise fan that embodiment one provided, and the casing is provided with the suction mouth towards one side of cooking utensils, and the air intake is just to the suction mouth.
The range hood that this embodiment provided includes the low noise fan that embodiment one provided, and first baffle 200 and second baffle 300 that set up relatively in the both sides of spiral case air intake can block the propagation of noise, play the effect that reduces spiral case air intake noise, are favorable to reducing the aerodynamic noise of fan.
In addition, the first baffle 200 and the second baffle 300 which are oppositely arranged at the two sides of the volute air inlet can also prevent oil smoke from diffusing, and the oil smoke absorption effect of the range hood can be favorably improved.
A suction port is arranged at one side of the machine shell facing the kitchen range, and particularly, when the range hood is a side-suction range hood, the lower end of the machine shell is provided with the suction port; when the range hood is a top-suction range hood, the front end of the shell is provided with a suction port.
In an optional solution of this embodiment, both ends of the first baffle 200 and the second baffle 300 facing away from the volute 100 are tightly abutted to the casing.
First baffle 200 and second baffle 300 all closely butt with the casing, can reduce or even eliminate the clearance between first baffle 200 and second baffle 300 and the casing, more are favorable to reducing the noise, reduce the diffusion of oil smoke.
in an optional technical scheme of this embodiment, the range hood is a side-draft range hood, the volute 100 is fixedly provided with a third baffle, the third baffle is located on the upper side of the air inlet 101, and one end of the third baffle, which is away from the volute 100, is tightly abutted to the housing.
On the basis that baffles are arranged on the left side and the right side of the side-draft range hood, the baffles are arranged on the upper side, noise can be reduced from three directions, diffusion of oil smoke is reduced, and the oil smoke absorption effect of oil smoke absorption is improved.
The third baffle plate can be regular or irregular in shape, and the specific shape can be designed according to the actual structural space of the range hood.
In this embodiment, the third baffle plate is screwed or welded to the scroll casing 100.
When the third baffle is in threaded connection with the volute 100, a third flange may be disposed at one end of the third baffle, which is connected with the volute 100, a plurality of fifth connection holes are disposed at intervals on the third flange, sixth connection holes corresponding to the fifth connection holes one to one are disposed on the volute 100, and bolts pass through the fifth connection holes and the sixth connection holes to fix the third baffle and the volute 100.
In an optional technical solution of this embodiment, one end of the left and right ends of the third baffle is connected to the first baffle 200, and the other end is connected to the second baffle 300 (that is, the left and right ends of the third baffle are respectively connected to the baffles on the same side as the third baffle).
one end in the left and right ends of the third baffle is connected with the first baffle 200, and the other end is connected with the second baffle 300, so that the distance between the third baffle and the first baffle 200 and the distance between the third baffle and the second baffle 300 can be reduced, and the reduction of noise at the air inlet 101 of the volute 100 and the reduction of oil smoke diffusion are facilitated.
as a specific possible implementation manner, the third baffle plate and the first baffle plate 200 and the third baffle plate and the second baffle plate 300 can be in sealing connection.
As another specific possible embodiment, the third baffle may be an integral structure with the first and second baffles 200 and 300.
In an optional technical solution of this embodiment, the range hood is a ceiling-mounted range hood, the volute 100 is fixedly provided with a fourth baffle and a fifth baffle, one of the fourth baffle and the fifth baffle is disposed in front of the air inlet 101, and the other is disposed at the rear side of the air inlet 101.
The lower end of the top-suction range hood is opposite to a kitchen range, and baffles are arranged at the front, the back, the left and the right of the air inlet 101 of the volute 100, so that the noise at the air inlet 101 can be reduced in multiple directions, and meanwhile, the diffusion of oil smoke is reduced to a greater extent.
The shape of the fourth baffle and the fifth baffle can be regular or irregular, and the specific shape can be designed according to the actual structural space of the range hood.
Specifically, the first baffle 200, the second baffle 300, the fourth baffle and the fifth baffle may be connected to each other to form a frame structure.
Further, the frame structure formed by the first baffle 200, the second baffle 300, the fourth baffle and the fifth baffle may be an integral structure.
The fourth baffle and the fifth baffle are both in threaded connection or welded with the volute 100, so that the connection between the fourth baffle and the fifth baffle and the volute 100 is simpler and more convenient.
Specifically, when the fourth baffle is in threaded connection with the volute 100, a fourth flange may be disposed at one end of the fourth baffle, which is connected with the volute 100, a plurality of seventh connecting holes are disposed at intervals on the fourth flange, eighth connecting holes corresponding to the seventh connecting holes one by one are disposed on the volute 100, and bolts pass through the seventh connecting holes and the eighth connecting holes to fix the fourth baffle and the volute 100.
The structure when the fifth baffle is screw-coupled with the scroll casing 100 is the same as that when the fourth baffle is screw-coupled with the scroll casing 100, and a description thereof will not be repeated.
In an optional technical solution of this embodiment, one end of each of the fourth baffle and the fifth baffle, which faces away from the scroll casing 100, is tightly abutted to the casing.
The fourth baffle and the fifth baffle are tightly abutted to the machine shell, so that gaps between the fourth baffle and the fifth baffle and the machine shell can be reduced or even eliminated, and noise reduction and oil smoke reduction are facilitated.
EXAMPLE III
The range hood that this embodiment provided includes the casing, install the spiral case in the casing and rotate the impeller that sets up in the spiral case, and one side that the casing faced the cooking utensils is provided with the suction mouth, is provided with the air intake on the spiral case, and the air intake is just to the suction mouth. A first baffle and a second baffle are fixedly arranged on the machine shell, the first baffle and the second baffle are arranged oppositely, one of the first baffle and the second baffle is positioned on the left side of the suction opening, and the other one of the first baffle and the second baffle is positioned on the right side of the suction opening.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (3)
1. A range hood is characterized by comprising a machine shell and a low-noise fan, wherein the low-noise fan comprises a volute (100) provided with an air inlet (101) and an impeller rotatably arranged in the volute (100), a first baffle (200), a second baffle (300) and a third baffle are fixedly arranged on the volute (100), and the first baffle (200) and the second baffle (300) are oppositely arranged and are positioned on the outer side of the air inlet (101) in the circumferential direction;
The range hood is a side-draft range hood, a suction port is formed in one side, facing the kitchen range, of the shell, and the air inlet is opposite to the suction port; the first baffle (200) and the second baffle (300) are positioned on the left side of the air inlet (101), and the other baffle is positioned on the right side of the air inlet (101); the third baffle is positioned at the upper side of the air inlet (101), one end of the left end and the right end of the third baffle is connected with the first baffle (200), and the other end of the third baffle is connected with the second baffle (300); one end of the first baffle plate (200), one end of the second baffle plate (300) and one end of the third baffle plate, which are away from the volute (100), are tightly abutted against the machine shell.
2. A range hood is characterized by comprising a machine shell and a low-noise fan, wherein the low-noise fan comprises a volute (100) provided with an air inlet (101) and an impeller rotatably arranged in the volute (100), a first baffle (200), a second baffle (300), a fourth baffle and a fifth baffle are fixedly arranged on the volute (100), and the first baffle (200) and the second baffle (300) are oppositely arranged and are positioned on the outer side of the air inlet (101) in the circumferential direction;
The range hood is a top-suction range hood, a suction port is formed in one side, facing the kitchen range, of the shell, and the air inlet is opposite to the suction port; one of the first baffle plate (200) and the second baffle plate (300) is positioned at the left side of the air inlet (101), the other one is positioned at the right side of the air inlet (101), one of the fourth baffle plate and the fifth baffle plate is arranged in front of the air inlet (101), and the other one is arranged at the rear side of the air inlet (101),
one ends of the fourth baffle plate and the fifth baffle plate, which are far away from the volute (100), are tightly abutted against the casing.
3. The range hood according to claim 2, wherein the first baffle (200) is screwed or welded with the volute (100), and the second baffle (300) is screwed or welded with the volute (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849926.8U CN209743254U (en) | 2018-11-09 | 2018-11-09 | Smoke exhaust ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849926.8U CN209743254U (en) | 2018-11-09 | 2018-11-09 | Smoke exhaust ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743254U true CN209743254U (en) | 2019-12-06 |
Family
ID=68700094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821849926.8U Active CN209743254U (en) | 2018-11-09 | 2018-11-09 | Smoke exhaust ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743254U (en) |
-
2018
- 2018-11-09 CN CN201821849926.8U patent/CN209743254U/en active Active
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