CN210373603U - Side-draft range hood with injection structure - Google Patents
Side-draft range hood with injection structure Download PDFInfo
- Publication number
- CN210373603U CN210373603U CN201920968641.4U CN201920968641U CN210373603U CN 210373603 U CN210373603 U CN 210373603U CN 201920968641 U CN201920968641 U CN 201920968641U CN 210373603 U CN210373603 U CN 210373603U
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- Prior art keywords
- air inlet
- impeller
- range hood
- air
- injection pipe
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- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 239000000779 smoke Substances 0.000 claims abstract description 62
- 239000006096 absorbing agent Substances 0.000 abstract description 23
- 239000006233 lamp black Substances 0.000 abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a side-draught range hood with draw and penetrate structure, including lampblack absorber body, collection smoke chamber, impeller, water conservancy diversion injection pipe and supplementary air intake, collection smoke chamber with set up between the impeller water conservancy diversion injection pipe, water conservancy diversion injection pipe is including setting up first air intake in collection smoke chamber, setting up second air intake in front of the impeller and connect the annular lateral wall of the two, be provided with the clearance between the inlet scoop of second air intake and impeller, the radial dimension of second air intake is less than the radial dimension of first air intake, simultaneously the radial dimension of second air intake is less than the radial dimension of the inlet scoop of impeller; the range hood is provided with a plurality of auxiliary air inlets, and the auxiliary air inlets communicate the outside with a gap arranged between the second air inlets and the air suction ports of the impellers; the range of smoke collection of the range hood is increased and the smoke absorption efficiency of the range hood is increased by arranging the diversion injection pipe and the auxiliary air inlet.
Description
Technical Field
The utility model belongs to the technical field of the kitchen lampblack absorber and specifically relates to a formula lampblack absorber is inhaled to side with draw and penetrate structure.
Background
The range hood has become one of the indispensable kitchen household electrical appliances in modern family life, and the range hood provides a lot of convenience for the user in the culinary art process, but along with the progress of scientific and technological, people's requirement to the range hood constantly improves. In the prior art, a smoke collection cavity is usually stretched, as shown in fig. 1, a simple square air inlet is arranged at the smoke collection cavity, oil smoke generated by cooking enters an air suction port of an impeller through the square air inlet and the smoke collection cavity, and in the process, part of air volume is blocked by a volute around the air suction port of the impeller to generate air resistance, so that the air volume of the range hood is not favorably improved; in addition, the range of smoke collection of the air inlet of the range hood in the prior art is limited, and in the process of absorbing oil smoke, part of oil smoke always escapes into a kitchen space, so that the indoor environment is influenced, and the life quality is reduced.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims to provide a side-draught range hood who draws penetrates the pipe through setting up the water conservancy diversion, increases the amount of wind of range hood.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
a side-draft range hood with an injection structure comprises a range hood body, a smoke collection cavity, an impeller, a flow guide injection pipe and an auxiliary air inlet, wherein the flow guide injection pipe is arranged between the smoke collection cavity and the impeller, the flow guide injection pipe comprises a first air inlet arranged in the smoke collection cavity, a second air inlet arranged in front of the impeller and an annular side wall connecting the first air inlet and the second air inlet, the radial size of the second air inlet is smaller than that of the first air inlet, the radial size of the second air inlet is smaller than that of an air suction opening of the impeller, and a gap is formed between the second air inlet and the air suction opening of the impeller; the range hood is provided with a plurality of auxiliary air inlets, and the auxiliary air inlets communicate the outside with gaps arranged between the second air inlets and the air suction ports of the impellers.
Furthermore, the plane where the second air inlet is located and the plane where the air suction inlet of the impeller is located are separated from each other.
Further, the second air inlet and the partial annular side wall are nested in the air inlet of the impeller.
Further, the ratio of the diameter of the second air inlet to the diameter of the air suction opening of the impeller is 0.5-0.9.
Furthermore, the left side and the right side of the first air inlet in the smoke collection cavity are respectively provided with an auxiliary air inlet.
Furthermore, an auxiliary air inlet is formed in the shell, close to the wall, of the range hood body, of the lower end of the flow guide injection pipe.
Furthermore, the auxiliary air inlet is in a fence shape.
Furthermore, the generatrix of the flow guide injection pipe is an arc line, and the annular side wall is an arc concave surface.
Furthermore, the generatrix of the flow guide injection pipe is a straight line.
Further, the first air inlet is circular, rectangular or elliptical.
The utility model arranges a flow guide injection pipe on the side-draft range hood, which is beneficial to guiding fluid into the impeller when the range hood works, and the fluid flow speed at the second air inlet is higher than that at the first air inlet by using the working principle of Venturi tube, so that the oil smoke enters the impeller at a higher speed, and the oil smoke is prevented from leaking from the gap between the air inlet and the impeller air suction inlet because of the slower oil smoke flow speed; meanwhile, the oil smoke dissipated from the gap of the shell of the range hood into the cavity of the range hood is sucked into the suction opening of the impeller by the negative pressure region formed by the high-speed flow of the fluid, so that the oil smoke suction effect is improved.
The utility model discloses set up supplementary air intake around the first air intake of lampblack absorber, this supplementary air intake with the cavity intercommunication of lampblack absorber external environment and lampblack absorber body, at the lampblack absorber during operation, the fluid flow rate of second air intake department that the pipe was drawn in the water conservancy diversion is very fast, forms negative pressure zone in the air suction opening department of impeller for the suction increase of supplementary air intake department, and then increased holding together the cigarette scope of lampblack absorber, promoted the effect of inhaling oil smoke.
Drawings
FIG. 1 is a schematic view of an air inlet of a side draft range hood of the prior art;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the installation of the present invention;
FIG. 4 is a schematic view of an air inlet of the present invention;
FIG. 5 is a schematic view of the air inlet of the present invention;
fig. 6 is a schematic view of the air inlet of the present invention.
Detailed Description
To clearly illustrate the design concept of the present invention, the following description is made with reference to the examples.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example one
The utility model relates to a range hood, including lampblack absorber body 1, collection smoke chamber 2, impeller 5, water conservancy diversion injection pipe 3 and supplementary air intake 4, set up in the collection smoke chamber water conservancy diversion injection pipe, water conservancy diversion injection pipe 3 sets up before impeller 5, including first air intake 3-1, second air intake 3-2 and annular lateral wall, be provided with the clearance between the inlet scoop of second air intake 3-2 and impeller 5, the radial dimension of second air intake 3-2 is less than the radial dimension of first air intake 3-1, and the radial dimension of second air intake 3-2 is less than the radial dimension of the inlet scoop of impeller 5 simultaneously; a plurality of auxiliary air inlets 4 are arranged around the first air inlet 3-1 in the smoke collection cavity 2, and the auxiliary air inlets 4 communicate the outside with gaps arranged between the second air inlets and the air suction ports of the impellers.
In the above-mentioned example, the utility model discloses a set up a water conservancy diversion on the side-draught range hood and draw and penetrate the pipe, this kind of structure similar to the horn mouth is favorable to in the leading-in impeller of fluid at the lampblack absorber during operation, utilizes venturi's theory of operation, and the fluid velocity of flow in second air intake department is greater than the fluid velocity of flow of first air intake department for during the oil smoke gets into the impeller with very fast speed, prevent that the oil smoke velocity of flow is slow, leak in the gap between air intake and the impeller inlet scoop.
Meanwhile, when the fluid at the second air inlet enters the impeller at a faster flow speed, a negative pressure area is formed at the air suction opening of the impeller, and the oil smoke in the shell of the range hood enters the impeller along with the high-speed fluid and is then discharged, so that the efficiency of absorbing the oil smoke is enhanced, the deposition of the oil smoke in the shell of the range hood is reduced, and the workload of cleaning the range hood is reduced.
The utility model discloses set up supplementary air intake around the first air intake of lampblack absorber, this supplementary air intake with the cavity intercommunication of lampblack absorber external environment and lampblack absorber body, at the lampblack absorber during operation, the fluid flow rate of second air intake department that the pipe was drawn in the water conservancy diversion is very fast, forms negative pressure zone in the air suction opening department of impeller for the suction increase of supplementary air intake department, and then increased holding together the cigarette scope of lampblack absorber, promoted the effect of inhaling oil smoke.
Example two
As shown in fig. 2 and fig. 3, the utility model relates to a range hood, which comprises a range hood body 1, a smoke collection cavity 2, an impeller 5, a diversion injection pipe 3 and an auxiliary air inlet 4, wherein the diversion injection pipe 3 is arranged between the smoke collection cavity 2 and the impeller 5, the diversion injection pipe 3 comprises a first air inlet 3-1 arranged in the smoke collection cavity 2, a second air inlet 3-2 arranged in front of the impeller 5 and an annular side wall connecting the two, the second air inlet 3-2 is arranged in front of an air suction opening of the impeller 5 in the vicinity of the second air inlet, a gap is arranged between the second air inlet 3-2 and the air suction opening of the impeller 5, the radial dimension of the second air inlet 3-2 is smaller than the radial dimension of the first air inlet 3-1, and the radial dimension of the second air inlet 3-2 is smaller than the radial dimension of the air suction opening of the impeller 5, the guide injection pipe 3 and the exhaust inlet of the impeller 4 form an injection structure along the direction from the first air inlet 3-1 to the second air inlet 3-2; the first air inlet 3-1 of the diversion injection pipe 3 is fixedly connected with the shell of the range hood body 1 through a screw, an auxiliary air inlet 4 is arranged around the first air inlet 3-1 in the smoke collection cavity 2, and the auxiliary air inlet 4 communicates the outside with a gap arranged between the second air inlet 3-2 and the exhaust inlet of the impeller 5.
As shown in fig. 2, a space is provided between the second air inlet 3-2 and the air inlet of the impeller 5, and the plane of the second air inlet 3-2 is separated from the plane of the air inlet of the impeller 5.
In the above example, the first air inlet 3-1 and the second air inlet 3-2 are both circular, and the centers of the circles of the first air inlet 3-1 and the second air inlet 3-2 are on the same axis, and the first air inlet 3-1 is fixed on the panel in the smoke collection cavity 2 through the flow guide injection pipe 3 by a screw, so that the flow guide injection pipe 3 is fixedly arranged in front of the impeller 5. When the range hood sucks oil smoke, a large amount of oil smoke enters the smoke collecting cavity 2 and then enters the flow guide injection pipe 3, and enters the suction opening of the impeller 5 from the second air inlet 3-2 along with the flow guide effect of the annular side wall, meanwhile, the oil smoke dissipated into the inner part of the range hood cavity from the gap of the range hood shell is sucked into the impeller 5 by the negative pressure region formed by high-speed flow of fluid, so that the integral oil smoke sucking efficiency of the range hood is improved, the deposition of the oil smoke in the shell of the range hood body 1 is reduced, and the workload of cleaning the range hood is reduced.
Referring to fig. 3, two auxiliary air inlets 4 are arranged on the casing of the range hood body 1 in the smoke collection cavity, the two auxiliary air inlets 4 are respectively arranged at the left side and the right side of the first air inlet 3-1, the auxiliary air inlets 4 are in a strip fence shape, the auxiliary air inlets 4 are not communicated with the impeller 5, and the kitchen environment space is communicated with the cavity of the range hood body 1. The arrangement enables the range hood to work in a working process, the shape of the flow guide injection pipe 3 utilizes the working principle of the Venturi pipe, a negative pressure area is generated at the air suction opening of the impeller 5, suction is generated at the auxiliary air inlet 4, the range of oil smoke absorption of the range hood is increased under the condition that the power of the fan is not increased, and the oil smoke absorption effect is improved.
As shown in fig. 2, a generatrix of the annular side wall of the diversion injection pipe 3 is an arc, the annular side wall is an arc surface, the arc surface is an arc surface which is concave from the outer side of the annular side wall to the inner side, and the arc surface forms a diversion surface of the diversion injection pipe. The ratio of the diameter D1 of the second air inlet 3-2 in the guide injection pipe 3 to the diameter D2 of the air suction opening of the impeller 5 is 0.5-0.9, and the ratio is 0.75 in the embodiment. The first air inlet 3-1 and the second air inlet 3-2 are both circular, the circle centers of the first air inlet and the second air inlet are on the same axis, the diversion injection pipe 3 is arranged right in front of the impeller 5, and a gap is arranged between the second air inlet 3-2 and the impeller 5.
In the above-mentioned example, the lampblack absorber is when inhaling the oil smoke, and a large amount of oil smoke gets into the collection cigarette chamber, gets into the water conservancy diversion and draws penetrating the pipe, has promoted the effect of inhaling the oil smoke, and simultaneously, when the water conservancy diversion draws penetrating the pipe in diameter D1 of second air intake and the diameter D2 of the inlet scoop of impeller when being less than 0.5, the resistance is too big to be unfavorable for inhaling the oil smoke, and when the ratio is greater than 0.9, the effect of drawing is not obvious, and the oil smoke absorption efficiency of lampblack absorber can not increase.
EXAMPLE III
As shown in fig. 2 and fig. 3, the utility model relates to a range hood, which comprises a range hood body 1, a smoke collection cavity 2, an impeller 5, a guide air inlet 3 and an auxiliary air inlet 4, wherein the guide injection pipe 3 is arranged between the smoke collection cavity 2 and the impeller 5, the guide injection pipe 3 comprises a first air inlet 3-1 arranged in the smoke collection cavity 2, a second air inlet 3-2 arranged in front of the impeller 5 and an annular side wall connecting the two, the second air inlet 3-2 is arranged in front of an air suction opening of the impeller 5 in the vicinity of the second air inlet 3-2, a gap is arranged between the second air inlet 3-2 and the air suction opening of the impeller 5, the radial dimension of the second air inlet 3-2 is smaller than the radial dimension of the first air inlet 3-1, and the radial dimension of the second air inlet 3-2 is smaller than the radial dimension of the air suction opening of the impeller 5, the guide injection pipe 3 is matched with an air suction opening of the impeller 5 along the direction from the first air inlet 3-1 to the second air inlet 3-2 to form an injection structure; an auxiliary air inlet 4 is arranged around the first air inlet 3-1 in the smoke collection cavity 2, and the auxiliary air inlet 4 communicates the outside with a gap arranged between the second air inlet 3-2 and the air suction inlet of the impeller 5.
In this embodiment, other technical features are not different from those of the above embodiments, and the second air inlet 3-2 and a part of the annular side wall extend into the air suction opening of the impeller 5, and a gap is provided between the second air inlet 3-2 and the air suction opening of the impeller 5. In this example, the oil smoke from the clearance of lampblack absorber casing body is dissipated to the inside cavity of lampblack absorber body 1 and is sucked into impeller 5 by the negative pressure zone formed by the high-speed flowing of the fluid at the air suction inlet of impeller 5, so that the whole oil smoke absorption efficiency of the lampblack absorber is improved, the deposition of the oil smoke in the casing of lampblack absorber body 1 is reduced, and the workload of cleaning the lampblack absorber is reduced.
The generating line of annular lateral wall is the straight line, this water conservancy diversion draws penetrates pipe 3's cross section and is trapezoidal, and similarly, this water conservancy diversion draws pipe 3 to play the effect of accelerating the fluid velocity of flow for the speed that the oil smoke got into the inlet scoop of impeller is accelerated, promotes oil absorption cigarette efficiency, and in addition, in this embodiment, the water conservancy diversion draws first air intake 3-1 in the pipe 3 to be the rectangle, and second air intake 3-2 is circular, refer to fig. 5, and supplementary air intake 4 sets up on the casing of lampblack absorber body 1 of first air intake 3-1 lower extreme in this embodiment, both ends are provided with two fence shape supplementary air intake 4 about this department.
It is noted that some of the structures may be selected differently than the specific examples given above. For example, the shape of the first air inlet in the flow guide injection pipe can be in various forms, such as the above circular, rectangular or oval; in the third embodiment, the auxiliary air inlet can be integrally laid on the shell of the range hood body 1 at the lower end of the first air inlet 3-1, or the left end and the right end of the auxiliary air inlet can be respectively provided with one auxiliary air inlet; the auxiliary air inlets are arranged at various positions, and besides the two types, referring to fig. 6, the auxiliary air inlets can be arranged at the left end and the right end of the rectangular first air inlet; the shape of the flow guide injection pipe can be various, and the flow guide injection pipe only meets the injection principle of a Venturi pipe; and the like, which can be made by those skilled in the art based on their basic skills based on an understanding of the inventive concept, and are not to be taken as an example herein.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered as the protection scope of the invention.
Claims (10)
1. A side-draft range hood with an injection structure is characterized by comprising a range hood body, a smoke collection cavity, an impeller, a diversion injection pipe and an auxiliary air inlet, wherein the diversion injection pipe is arranged between the smoke collection cavity and the impeller, the diversion injection pipe comprises a first air inlet arranged in the smoke collection cavity, a second air inlet arranged in front of the impeller and an annular side wall connecting the first air inlet and the second air inlet, a gap is formed between the second air inlet and an air suction opening of the impeller, the radial size of the second air inlet is smaller than that of the first air inlet, and the radial size of the second air inlet is smaller than that of the air suction opening of the impeller; the range hood is provided with a plurality of auxiliary air inlets, and the auxiliary air inlets communicate the outside with gaps arranged between the second air inlets and the air suction ports of the impellers.
2. The range hood according to claim 1, wherein a plane where the second air inlet is located and a plane where the suction inlet of the impeller is located are separated from each other.
3. The range hood of claim 1, wherein the second air inlet and the partial annular side wall extend into an air inlet of the impeller.
4. The range hood according to claim 1, wherein a ratio of a diameter of the second air inlet to a diameter of the suction opening of the impeller is between 0.5 and 0.9.
5. The range hood according to claim 1, wherein the auxiliary air inlets are respectively arranged on the left side and the right side of the first air inlet in the smoke collection chamber.
6. The range hood according to claim 1, wherein the auxiliary air inlet is formed in a shell of the range hood body, close to the wall, at the lower end of the flow guide injection pipe.
7. The range hood of claim 1, wherein the auxiliary air inlet is in the shape of a fence.
8. The range hood according to claim 1, wherein a generatrix of the flow guide injection pipe is a circular arc line, and the annular side wall is an arc surface.
9. The range hood according to claim 1, wherein a generatrix of the flow guide injection pipe is a straight line.
10. The range hood of claim 1, wherein the first air inlet is circular, rectangular or elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968641.4U CN210373603U (en) | 2019-06-26 | 2019-06-26 | Side-draft range hood with injection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968641.4U CN210373603U (en) | 2019-06-26 | 2019-06-26 | Side-draft range hood with injection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210373603U true CN210373603U (en) | 2020-04-21 |
Family
ID=70267580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920968641.4U Withdrawn - After Issue CN210373603U (en) | 2019-06-26 | 2019-06-26 | Side-draft range hood with injection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210373603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173731A (en) * | 2019-06-26 | 2019-08-27 | 杭州老板电器股份有限公司 | A kind of side-suction type range hood with ejection structure |
-
2019
- 2019-06-26 CN CN201920968641.4U patent/CN210373603U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173731A (en) * | 2019-06-26 | 2019-08-27 | 杭州老板电器股份有限公司 | A kind of side-suction type range hood with ejection structure |
| CN110173731B (en) * | 2019-06-26 | 2023-12-26 | 杭州老板电器股份有限公司 | Side-draft range hood with injection structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200421 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200421 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |