CN211204173U - Range hood with function of increasing suction force by utilizing exhaust - Google Patents
Range hood with function of increasing suction force by utilizing exhaust Download PDFInfo
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- CN211204173U CN211204173U CN201922330095.4U CN201922330095U CN211204173U CN 211204173 U CN211204173 U CN 211204173U CN 201922330095 U CN201922330095 U CN 201922330095U CN 211204173 U CN211204173 U CN 211204173U
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Abstract
The utility model discloses a smoke exhaust ventilator which utilizes exhaust to increase the suction function, comprising a motor, an impeller, a volute and a suction compensation shell; a main smoke discharge channel is formed between the volute smoke inlet and the volute smoke outlet; the suction compensation shell is sleeved outside the volute smoke outlet; the smoke outlet of the suction compensation shell is higher than the smoke outlet of the volute; the smoke outlet of the suction compensation shell is in the same direction as the smoke outlet of the volute, and a compensation smoke exhaust channel is formed in the area between one side of the smoke outlet of the volute and the suction compensation shell; the smoke inlet of the suction compensation shell is communicated with the external space. This smoke ventilator does not increase under the condition of motor power, and suction promotes by a wide margin, guarantees to have under the condition of equal suction with prior art, will reduce motor power to can energy saving and noise abatement and vibration.
Description
Technical Field
The utility model belongs to smoke ventilator, concretely relates to utilize smoke ventilator of exhaust increase suction function.
Background
The working principle of the traditional range hood is as follows: the motor 01 is used for driving the impeller 02 to rotate at a high speed, air in the volute 03 is discharged through the volute smoke outlet 05 through the volute inner cavity 04 under the centrifugal action of the impeller 02, negative pressure is formed at the volute smoke inlet 06, at the moment, smoke around the volute smoke inlet 06 flows to the negative pressure area to enter the volute inner cavity 04, and is discharged through the volute smoke outlet 05 through the volute inner cavity 04 under the centrifugal action of the impeller 02. Thus, a continuous airflow is formed, which enters the air outlet B2 through the air outlet B1, so that the effect of oil smoke extraction is achieved, and the working process is shown in figures 1 and 2.
With the continuous progress of science and technology, high efficiency, energy saving and environmental protection become targets pursued by various household appliance manufacturers, in the development process of the range hood at the present stage, the suction force of the range hood is mainly improved by improving the power of a motor, but the energy consumption, noise and vibration are increased along with the increase of the power of the motor, so that the large suction force inherently brings a good smoke extraction effect, and the large energy consumption, high noise and larger vibration bring much inconvenience to users, therefore, how to ensure the large suction force, low energy consumption and low noise becomes a main technical problem in the range hood field.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems of high power consumption, high noise and large vibration caused by increasing the suction force of the range hood by improving the power of a motor, the invention provides the range hood with the function of increasing the suction force by utilizing exhaust.
The utility model discloses a concrete technical scheme:
the utility model provides a smoke exhaust ventilator which utilizes exhaust to increase the suction function, comprising a motor, an impeller and a volute; a main smoke discharge channel is formed between the volute smoke inlet and the volute smoke outlet; the improvement is as follows:
the suction compensation shell is also included;
the suction compensation shell is sleeved outside the volute smoke outlet;
the smoke outlet of the suction compensation shell is higher than the smoke outlet of the volute;
the smoke outlet of the suction compensation shell is in the same direction as the smoke outlet of the volute, and a compensation smoke exhaust channel is formed in the area between one side of the smoke outlet of the volute and the suction compensation shell;
the smoke inlet of the suction compensation shell is communicated with the external space.
Furthermore, the volute smoke outlet is arranged right opposite to the volute smoke inlet, and the impeller adopts an axial-flow impeller in the structure.
Furthermore, the volute smoke outlet is arranged on the side of the volute smoke inlet, and the impeller adopts a centrifugal impeller in the structure.
Further, the smoke inlet of the suction compensation shell is communicated with the external space through at least one smoke suction pipe.
Further, the fume pipe passes through the volute.
Furthermore, the suction compensation shell comprises a convergence pipe section, a straight pipe section and a connector pipe section which are sequentially arranged according to the flow direction of the flue gas; the pipe diameter of the convergent pipe section is gradually reduced along the flow direction of the flue gas.
Furthermore, the volute smoke outlet extends towards the convergence pipe section, and a negative pressure flow guide area is formed between the volute smoke outlet and the inner wall of the convergence pipe section.
Furthermore, the number of the smoke absorbing pipes is four.
Furthermore, the caliber of the smoke absorbing pipe is 1/2 to 1/5 of the caliber of the smoke outlet of the volute.
The utility model has the advantages that:
1. the utility model adopts the suction compensation shell sleeved outside the smoke outlet of the volute, and the smoke outlet of the suction compensation shell is higher than the smoke outlet of the volute, therefore, a path of compensation smoke exhaust channel (namely the area between one side of the volute smoke outlet and the suction compensation shell) is formed outside the main smoke exhaust channel formed between the volute smoke inlet and the volute smoke outlet, when smoke in the main smoke exhaust channel is exhausted from the volute smoke outlet, because of the viscosity of the air, the air in the compensation smoke exhaust channel is accelerated to be brought out by the smoke exhausted from the smoke outlet of the volute, the external smoke flows in through the smoke exhaust channel to be supplemented, and the secondary suction effect is generated, therefore, the range hood is more efficient without increasing the power of the motor, the suction force is greatly improved, under the condition of ensuring the same suction force as the prior art, the power of the motor can be reduced, thereby saving energy consumption and reducing noise and vibration.
2. The utility model provides a when spiral case outlet flue just advanced the mouth setting to the spiral case, add suction compensation casing and can advance the peripheral flue gas of mouth in the lump with the spiral case and discharge, concentrate the smoke exhaust effect better.
3. The utility model provides a when spiral case outlet flue was located spiral case inlet flue side and sets up, it can improve smoke ventilator's smoking coverage area to add suction compensation casing, and smoke exhaust effect is better.
4. The utility model discloses a suction compensation casing comprises convergence pipeline section, straight pipeline section and interface pipeline section, and wherein the pipe wall of convergence pipeline section can lead the flue gas in the compensation smoke exhaust passage, makes it be close to spiral case outlet flue to further promote the inspiratory effect of secondary.
5. The utility model discloses only increased suction compensation casing on current smoke ventilator's basis, ingenious utilization aerodynamics principle has realized smoke ventilator's efficiency such as big suction, low energy consumption, low noise, low vibration to simple structure, low in manufacturing cost easily promotes.
Drawings
Fig. 1 is a structural schematic diagram of a conventional range hood;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
the reference numerals of fig. 1 and 2 are as follows:
01-motor, 02-impeller, 03-volute, 04-volute inner cavity, 05-volute smoke outlet and 06-volute smoke inlet.
FIG. 3 is a schematic structural view of embodiment 1;
fig. 4 is a sectional view a-a of fig. 3.
FIG. 5 is a schematic structural view of embodiment 2;
fig. 6 is a sectional view a-a of fig. 5.
FIG. 7 is a schematic structural view of embodiment 3;
the reference numerals of fig. 3 to 7 are as follows:
1-motor, 2-impeller, 3-volute, 4-suction compensation shell, 5-volute smoke inlet, 6-volute smoke outlet, 7-suction compensation shell smoke outlet, 8-suction compensation shell smoke inlet, 9-smoke absorbing pipe, 10-convergence pipe section, 11-straight pipe section, 12-interface pipe section, 13-main smoke exhaust channel and 14-compensation smoke exhaust channel.
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 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 1
The present embodiment provides a range hood with a function of increasing suction force by using exhaust, which is specifically a side exhaust type structure, as shown in fig. 3 and 4, including a motor 1, an impeller 2 (in the present embodiment, a centrifugal impeller), a volute 3, and a suction compensation housing 4; the motor 1 is installed outside the volute 3 (the left upper side of the volute in fig. 3), a transmission shaft of the motor extends into an inner cavity of the volute and is connected with the impeller 2 and used for driving the impeller 2 to rotate, and the volute 3 is further provided with a volute smoke inlet 5 (the left lower side of the volute in fig. 3) and a volute smoke outlet 6 (the right upper side of the volute 3 in fig. 3); a main smoke discharge channel 13 is formed between the volute smoke inlet 5 and the volute smoke outlet 6;
the suction compensation shell 4 is sleeved outside the volute smoke outlet 6;
the suction compensation shell 4 is sleeved outside the volute smoke outlet 6, and the smoke outlet 7 of the suction compensation shell is higher than the volute smoke outlet 6; the smoke outlet 7 of the suction compensation shell and the smoke outlet 6 of the volute are in the same direction (upward in the figure); the smoke inlet 8 of the suction compensation shell is communicated with the external space; in the structure, a path of compensation smoke exhaust channel 14 is formed between one side of the volute smoke outlet 6 and the suction compensation shell 4.
The working principle and the process are as follows: when the range hood works, external smoke brought by a centrifugal impeller is sucked from the volute smoke inlet 5, when the smoke is discharged from the volute smoke outlet 6 (namely, the smoke is discharged from the main smoke discharge channel), when the smoke of the main smoke discharge channel 13 is discharged from the volute smoke outlet 6, due to the viscosity of air, air in the compensation smoke discharge channel 14 is accelerated and brought out by the smoke discharged from the volute smoke outlet, the external smoke flows into the compensation smoke discharge channel to supplement the external smoke discharge channel, secondary suction effect is generated, the suction force is greatly improved, and under the condition that the same suction force is ensured to be achieved with the prior art, the motor power can be reduced, the energy consumption is reduced, and the noise and the vibration are reduced.
Example 2
The present embodiment provides a range hood with a function of increasing suction force by using exhaust, which is also a side exhaust type structure, as shown in fig. 5 and 6, and includes a motor 1, an impeller 2 (in the present embodiment, a centrifugal impeller), a volute 3, and a suction compensation housing 4; the motor 1 is installed outside the volute 3 (the left upper side of the volute in fig. 3), a transmission shaft of the motor extends into an inner cavity of the volute and is connected with the impeller 2 and used for driving the impeller 2 to rotate, and the volute 3 is further provided with a volute smoke inlet 5 (the left lower side of the volute in fig. 3) and a volute smoke outlet 6 (the right upper side of the volute 3 in fig. 3); a main smoke discharge channel 13 is formed between the volute smoke inlet 5 and the volute smoke outlet 6;
the suction compensation shell 4 is sleeved outside the volute smoke outlet 6;
the suction compensation shell 4 is sleeved outside the volute smoke outlet 6, and the smoke outlet 7 of the suction compensation shell is higher than the volute smoke outlet 6; the smoke outlet 7 of the suction compensation shell and the smoke outlet 6 of the volute are in the same direction (upward in the figure); the smoke inlet 8 of the suction compensation housing is in communication with the external space through at least one smoking pipe 9. In this structure, the smoke absorbing pipe 9 itself is a compensation smoke exhaust channel 14. In the embodiment, 4 smoking pipes 9 are adopted, 4 smoking pipes 9 are all installed in the volute 3, and the 4 smoking pipes 9 are independent from each other, the smoke outlet of the smoking pipe 9 is communicated with the suction compensation housing 4, and the smoke outlet of the smoking pipe 9 is communicated with the external space. In order to further improve the secondary smoking effect, the caliber of the smoke outlet of the smoking pipe 9 is 1/2 to 1/5 of the caliber of the smoke outlet 7 of the volute.
The working principle and the process are as follows: when the range hood works, external smoke brought by the centrifugal impeller is sucked from the volute smoke inlet 5, when the smoke is discharged from the volute smoke outlet 6 (namely, the smoke is discharged from the main smoke discharge channel), when the smoke of the main smoke discharge channel 13 is discharged from the volute smoke outlet 6, the smoke in the smoke suction pipe 9 flows to the smoke discharged from the volute smoke outlet due to the viscosity of air, and the smoke discharged from the smoke outlet of the smoke suction pipe 9 is accelerated to be taken out by the smoke discharged from the volute smoke outlet due to the viscosity of air, the external smoke flows in through the 4 smoke suction pipes 9 to be supplemented, so that secondary suction effect is generated, the suction force is greatly improved, and under the condition that the situation that the smoke has the same value as the prior art is ensured, the motor power can be reduced, the energy consumption is saved, and the noise and the vibration are reduced.
Example 3
The present embodiment provides a range hood with a function of increasing suction by using exhaust, which is specifically a direct-exhaust structure, as shown in fig. 7, and includes a motor, an impeller 2 (in the present embodiment, an axial-flow impeller), a volute 3, and a suction compensation casing 4; the motor is arranged outside the volute 3 (the position of the motor cannot be shown in fig. 7), a transmission shaft of the motor extends into the inner cavity of the volute and is connected with the impeller 2 and used for driving the impeller 2 to rotate, and a volute smoke inlet 5 (below the volute and opposite to the axial-flow impeller in fig. 7) is also formed in the volute 3;
a suction compensation shell 4 is sleeved outside a volute smoke outlet 6 (above the volute and opposite to the axial-flow impeller in the figure 7), and a main smoke discharge channel 13 is formed between the volute smoke inlet 5 and the volute smoke outlet 6;
the suction compensation shell 4 is sleeved outside the volute smoke outlet 6, and the smoke outlet 7 of the suction compensation shell is higher than the volute smoke outlet 6; the smoke outlet 7 of the suction compensation shell and the smoke outlet 6 of the volute are in the same direction (upward in the figure); the smoke inlet 8 of the suction compensation housing communicates with the external space. In the structure, a path of compensation smoke exhaust channel 14 is formed between one side of the volute smoke outlet 6 and the suction compensation shell 4.
The working principle and the process are as follows: when the range hood works, external smoke brought by the axial-flow impeller is sucked from the volute smoke inlet 5, when the smoke is discharged from the volute smoke outlet 6 (namely, the smoke is discharged from the main smoke discharge channel), when the smoke of the main smoke discharge channel is discharged from the volute smoke outlet 6, due to the viscosity of air, the smoke in the compensation smoke discharge channel can flow to the smoke discharged from the volute smoke outlet 6, and due to the viscosity of air, the smoke in the compensation smoke discharge channel is accelerated to be brought out by the smoke discharged from the volute smoke outlet 6, the external smoke flows in to be supplemented, secondary suction effect is generated, the suction force is greatly improved, under the condition that the same suction force is ensured in the prior art, the motor power can be reduced, the energy consumption is saved, and the noise and the vibration are reduced.
On the basis of above three embodiments, the utility model discloses still provide following optimized structure:
1. the suction compensation shell 4 of the embodiment comprises a convergent pipe section 10, a straight pipe section 11 and a connector pipe section 12 which are sequentially arranged according to the flow direction of flue gas; the pipe diameter of the convergent pipe section 10 is gradually reduced along the smoke flow direction. The pipe wall of the convergent pipe section 10 can guide the smoke of the compensation smoke exhaust channel 14 to enable the smoke to be exhausted close to the volute smoke outlet 6, so that the secondary air suction effect is better.
2. In addition, the volute smoke outlet 6 extends towards the convergence pipe section 10, and a negative pressure flow guiding area is formed between the volute smoke outlet 6 and the inner wall of the convergence pipe section 10, and by adjusting the height difference (i.e. H in fig. 3, 5 and 7) between the mouth of the volute smoke outlet 6 and the small-caliber end of the convergence pipe section 10 after the extension and the distance (i.e. L in fig. 3, 5 and 7) between the caliber of the volute smoke outlet 6 and the inner diameter of the straight pipe section 11, the negative pressure flow guiding effect is better, and the secondary suction is stronger.
The utility model discloses a structure can improve smoke ventilator's suction by a wide margin to improve work efficiency greatly, owing to have two induction ports, consequently, also will prolong the cleaning interval of impeller. The technology has wide adaptability and can be suitable for various types of smoke exhaust ventilators (top suction type, side suction type, circulation type, integrated kitchen range and the like).
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 (10)
1. A smoke exhaust ventilator with the function of increasing suction force by utilizing exhaust comprises a motor (1), an impeller (2) and a volute (3); a main smoke discharge channel (13) is formed between the volute smoke inlet (5) and the volute smoke outlet (6); the method is characterized in that:
also comprises a suction compensation shell (4);
the suction compensation shell (4) is sleeved outside the volute smoke outlet (6);
the smoke outlet of the suction compensation shell is higher than the smoke outlet (6) of the volute;
the smoke outlet (7) of the suction compensation shell is in the same direction as the smoke outlet (6) of the volute, and a compensation smoke exhaust channel (14) is formed between one side of the smoke outlet (6) of the volute and the suction compensation shell (4);
the smoke inlet (8) of the suction compensation shell is communicated with the external space.
2. The hood according to claim 1, wherein the hood further comprises a suction increasing function by exhausting air, and the suction increasing function comprises: the volute smoke outlet (6) is arranged right opposite to the volute smoke inlet (5).
3. The hood according to claim 1, wherein the hood further comprises a suction increasing function by exhausting air, and the suction increasing function comprises: the volute smoke outlet (6) is arranged on the side of the volute smoke inlet (5).
4. The hood for increasing suction force using exhaust gas according to claim 1, 2 or 3, wherein: the smoke inlet (8) of the suction compensation shell is communicated with the external space through at least one smoke suction pipe (9).
5. The hood according to claim 4, wherein the hood further comprises a suction increasing function by exhausting air, and the suction increasing function comprises: the fume suction pipe (9) penetrates through the volute (3).
6. The hood according to claim 5, wherein the hood further comprises a suction increasing function by exhausting air, and the suction increasing function comprises: the suction compensation shell (4) comprises a convergent pipe section (10), a straight pipe section (11) and an interface pipe section (12) which are sequentially arranged according to the smoke flow direction; the pipe diameter of the convergent pipe section (10) is gradually reduced along the flow direction of the flue gas.
7. The hood according to claim 6, wherein the hood further comprises a suction increasing function for increasing suction by exhausting air, and the suction increasing function comprises: the volute smoke outlet (6) extends towards the inside of the convergent pipe section (10) and forms a negative pressure flow guide area with the inner wall of the convergent pipe section (10).
8. The hood according to claim 7, wherein the hood further comprises a suction increasing function by exhausting air, and the suction increasing function comprises: the impeller (2) is a centrifugal impeller or an axial-flow impeller.
9. The hood according to claim 4, wherein the hood further comprises a suction increasing function by exhaust gas, and the suction increasing function comprises: the number of the smoke absorbing pipes (9) is four.
10. The hood for increasing suction force using exhaust gas according to claim 9, wherein: the caliber of the smoke absorbing pipe is 1/2 to 1/5 of the caliber of the smoke outlet of the volute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330095.4U CN211204173U (en) | 2019-12-23 | 2019-12-23 | Range hood with function of increasing suction force by utilizing exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330095.4U CN211204173U (en) | 2019-12-23 | 2019-12-23 | Range hood with function of increasing suction force by utilizing exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211204173U true CN211204173U (en) | 2020-08-07 |
Family
ID=71853739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922330095.4U Expired - Fee Related CN211204173U (en) | 2019-12-23 | 2019-12-23 | Range hood with function of increasing suction force by utilizing exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211204173U (en) |
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2019
- 2019-12-23 CN CN201922330095.4U patent/CN211204173U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20201223 |