CN211526520U - Multifunctional fume exhaust fan - Google Patents
Multifunctional fume exhaust fan Download PDFInfo
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- CN211526520U CN211526520U CN202020134404.0U CN202020134404U CN211526520U CN 211526520 U CN211526520 U CN 211526520U CN 202020134404 U CN202020134404 U CN 202020134404U CN 211526520 U CN211526520 U CN 211526520U
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- fresh air
- range hood
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- cold
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Abstract
The utility model discloses a multifunctional range hood, which comprises a range hood body and a fresh air fan, wherein a fresh air channel is arranged on the range hood body, the fresh air channel comprises a fresh air inlet and a cold air outlet, the fresh air fan is arranged on the fresh air channel, and a throttling area with a smaller channel inner cavity is arranged on the fresh air channel between the cold air outlet and the fresh air fan; this kind of range hood, when gas flows in the pipeline, because local resistance, promptly: when the range hood encounters a necking (throttling area), the pressure of the range hood is obviously reduced, the throttling phenomenon is realized, and the temperature before and after the gas throttling generally changes, so that the range hood can blow cold air while absorbing oil fume, thereby not only reducing the temperature of a kitchen and relieving the problem of intense heat during cooking, but also avoiding an additional refrigerating device.
Description
Technical Field
The utility model relates to a range hood, especially a multifunctional range hood.
Background
Current range hood, its function is various, if: take range hood of refrigeration function, see chinese utility model patent no: 201822199137.0, name: the cooling device comprises a box body, a semiconductor refrigerating sheet, a cold guide module, a heat conduction module, a cold end pipe, a cold end pump body, a hot end pipe and a hot end pump body. The cold energy generated by the semiconductor refrigerating sheet is used for reducing the temperature of the cold conducting module, the cold conducting module transmits the cold energy to the cold end pipe, and the cold end pipe transmits the cold energy to the cold dissipating assembly, so that the effect of reducing the temperature of a kitchen is achieved, the problem of intense heat during cooking is relieved, and the product performance is improved. However, the range hood with the structure still has the following defects: (1) the cold air blowing device is realized by blowing the air out of the fan after the air is refrigerated through the semiconductor refrigerating sheet, the refrigerating device is combined with the range hood, the structure is complex, the cost is high, the refrigerating sheet is used as an electronic accessory, the refrigerating sheet is easy to damage during frequent work, more electric energy can be consumed by the refrigerating sheet, the use cost of a user is increased, and the popularization and the use of products are not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a simple structure, reasonable, with high costs, and power consumptive, cause the multi-functional range hood of user use cost increase.
The purpose of the utility model is realized like this:
a multifunctional range hood comprises a range hood body and is characterized by also comprising a fresh air fan, wherein a fresh air channel is arranged on the range hood body and comprises a fresh air inlet and a cold air outlet, the fresh air fan is arranged on the fresh air channel, and a throttling area with a smaller channel inner cavity is arranged on the fresh air channel between the cold air outlet and the fresh air fan; this kind of range hood is through addding independent new trend passageway on the cigarette machine body to the new fan of cooperation utilizes the throttle district on the new trend passageway, makes the gas temperature that flows through reduce, promptly: when gas flows in the pipe, due to local resistance, namely: when a necking (throttling area) is encountered, the pressure of the range hood is obviously reduced, the throttling phenomenon is realized, the temperature before and after the gas throttling generally changes, and the temperature of the gas is reduced in the throttling process, and the temperature change is the Joule-Thomson effect, so that the range hood can blow cold air while absorbing oil smoke, thereby reducing the kitchen temperature and relieving the problem of intense heat during cooking, and no other refrigerating device (such as a semiconductor refrigerating sheet) is needed.
The utility model discloses can also adopt following technical measure to solve:
furthermore, the fresh air channel is internally provided with a fresh air fan towards the cold air outlet, and the inner cavity of the fresh air channel is gradually reduced to form the throttling area; such a throttle zone provides a better cooling effect when the gas flows through.
Furthermore, the throttling area extends downwards from the fresh air fan to the cold air outlet, so that the gas (air) flows more smoothly to the cold air outlet.
Further, the fresh air fan is a direct current fan; the direct current fan saves more electric energy.
Further, the fresh air fan is a direct-current cross-flow fan; the cross-flow fan enables air flow to reach far, no turbulent flow exists, and air outlet is uniform.
Furthermore, the cold air outlet is preferably arranged at the lower part of the front side of the range hood body; the range hood is easy to directly blow to a user at the lower part of the front side of the range hood body based on the reason that the range hood is generally higher in installation position.
Further, the fresh air inlet is arranged on the top wall of the range hood body so as to suck fresh air.
Furthermore, the cold air outlet, the fresh air inlet and the fresh air fan are arranged in front, in middle and at back; thus, the middle air inlet, the rear air blast and the front air exhaust are formed.
Furthermore, a fresh air inlet, a fresh air fan and a cold air outlet are respectively arranged in the horizontal height from high to low; thus, an upper inlet, a middle blast and a lower outlet are formed.
The utility model has the advantages as follows:
(1) this kind of range hood is through addding independent new trend passageway on the cigarette machine body to the new fan of cooperation utilizes the throttle district on the new trend passageway, makes the gas temperature that flows through reduce, promptly: when gas flows in the pipe, due to local resistance, namely: when a necking (throttling area) is encountered, the pressure of the range hood is obviously reduced, the throttling phenomenon is realized, the temperature before and after the gas throttling generally changes, and the temperature of the gas is reduced in the throttling process, and the temperature change is the Joule-Thomson effect, so that the range hood can blow cold air while absorbing oil smoke, thereby reducing the kitchen temperature and relieving the problem of intense heat during cooking, and no other refrigerating device (such as a semiconductor refrigerating sheet) is needed.
(2) Furthermore, the fresh air channel is internally provided with a fresh air fan towards the cold air outlet, and the inner cavity of the channel is gradually reduced to form the throttling area; the throttling area enables the temperature reduction effect when the gas flows through to be better; and the throttling area extends downwards from the fresh air fan to the cold air outlet, so that the gas (air) flows more smoothly to the cold air outlet.
(3) The fresh air fan is a direct-current cross-flow fan; the cross-flow fan enables air flow to reach far, no turbulent flow exists, and air outlet is uniform.
Drawings
Fig. 1 is a schematic view of the range hood of the present invention.
Fig. 2 is another angle schematic of fig. 1.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
as shown in fig. 1 and fig. 2, a multifunctional range hood comprises a range hood body 1 and is characterized by further comprising a fresh air fan 2, wherein a fresh air channel 3 is arranged on the range hood body 1, the fresh air channel 3 comprises a fresh air inlet 4 and a cold air outlet 5, the fresh air fan 2 is arranged on the fresh air channel 3, and a throttling area 6 for reducing the inner cavity of the channel is arranged on the fresh air channel 3 between the cold air outlet 5 and the fresh air fan 2.
In this embodiment, the fresh air channel 3 is formed by gradually reducing the inner cavity of the fresh air channel from the fresh air fan 2 to the cold air outlet 5 to form the throttling area 6; and the throttling area 6 extends downwards from the fresh air fan 2 to the cold air outlet 5.
More preferably, the fresh air fan 2 is a direct-current cross-flow fan. And the cold air outlet 5 is arranged at the lower part of the front side of the range hood body 1. The fresh air inlet 4 is arranged on the top wall of the range hood body 1. The cold air outlet 5, the fresh air inlet 4 and the fresh air fan 2 are arranged in front, middle and back order; the fresh air inlet 4, the fresh air fan 2 and the cold air outlet 5 are respectively arranged in the horizontal height from high to low.
The working principle is as follows: when the range hood is sucking oil smoke, (can be simultaneously or postpone) open new fan 2, the new air is got into by new fan 2 from new trend entry 4 at 1 top of lampblack absorber body, through throttle district 6 behind new fan 2, when gas flows in throttle district 6, because local resistance, promptly: when the range hood is in necking, the pressure is obviously reduced, the throttling phenomenon is realized, and the temperature of the gas is reduced in the throttling process, so that the range hood can blow cold air while absorbing oil smoke, the temperature of a kitchen is reduced, and the problem of extremely hot cooking is solved.
Claims (9)
1. The utility model provides a multifunctional range hood, includes lampblack absorber body (1), characterized by, still including new trend fan (2), be provided with new trend passageway (3) on lampblack absorber body (1), new trend passageway (3) are including new trend entry (4) and cold wind export (5), install on new trend passageway (3) new trend fan (2), be provided with throttle district (6) that the passageway inner chamber diminishes on new trend passageway (3) between cold wind export (5) and new trend fan (2).
2. The multifunctional range hood of claim 1, wherein the fresh air channel (3) is internally provided with a fresh air blower (2) towards the cold air outlet (5), and the inner cavity of the fresh air channel is gradually reduced to form the throttling area (6).
3. The multifunctional range hood of claim 2, wherein the throttling area (6) extends from the fresh air fan (2) to the cold air outlet (5) in a downward inclined manner.
4. The multifunctional range hood of claim 1, wherein the fresh air fan (2) is a direct current fan.
5. The multifunctional range hood of claim 1, wherein the fresh air fan (2) is a straight-flow cross-flow fan.
6. The multifunctional range hood of claim 1, wherein the cold air outlet (5) is arranged at the lower part of the front side of the range hood body (1).
7. The multifunctional range hood of claim 1, wherein the fresh air inlet (4) is arranged on the top wall of the range hood body (1).
8. The multifunctional range hood of claim 1, wherein the cold air outlet (5), the fresh air inlet (4) and the fresh air blower (2) are arranged in a front, middle and rear order.
9. The multifunctional range hood according to claim 1, wherein the fresh air inlet (4), the fresh air fan (2) and the cold air outlet (5) are arranged in the horizontal height from high to low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134404.0U CN211526520U (en) | 2020-01-21 | 2020-01-21 | Multifunctional fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020134404.0U CN211526520U (en) | 2020-01-21 | 2020-01-21 | Multifunctional fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211526520U true CN211526520U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020134404.0U Active CN211526520U (en) | 2020-01-21 | 2020-01-21 | Multifunctional fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211526520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856505A (en) * | 2021-01-07 | 2021-05-28 | 宁波方太厨具有限公司 | Range hood and working method thereof |
-
2020
- 2020-01-21 CN CN202020134404.0U patent/CN211526520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112856505A (en) * | 2021-01-07 | 2021-05-28 | 宁波方太厨具有限公司 | Range hood and working method thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230828 Address after: 528300 Plant 3, Zhuanyao Industrial Zone, Dongfeng Village, Leliu Subdistrict, Shunde District, Foshan City, Guangdong Province (application for residence) Patentee after: Foshan Youfan Electrical Appliances Co.,Ltd. Address before: 528300 Fulu management area, Leliu Town, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE KINGBRIGHT HOME APPLIANCES INDUSTRIAL Co.,Ltd. |