CA2596895A1 - Air exhausting device - Google Patents
Air exhausting device Download PDFInfo
- Publication number
- CA2596895A1 CA2596895A1 CA002596895A CA2596895A CA2596895A1 CA 2596895 A1 CA2596895 A1 CA 2596895A1 CA 002596895 A CA002596895 A CA 002596895A CA 2596895 A CA2596895 A CA 2596895A CA 2596895 A1 CA2596895 A1 CA 2596895A1
- Authority
- CA
- Canada
- Prior art keywords
- oil
- case
- plate
- exhausting device
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The present invention provides air exhausting device including a housing, which includes a first case and a second case to form an air chamber therein, and a fan assembly, which includes a motor and two fans driven by the motor, received in the air chamber. The housing has two inlets associated with the fans respectively. The first case has an outlet and a connection portion on the outlet. An oil container, which has an oil bore on a bottom side thereof, is provided on a sidewall of the outlet, wherein the fans are not under the oil bore. The first case having a first plate and the second case has a second plate to guide oil in the oil container flowing to an oil bore on a bottom side of the second case through the oil bore, the first plate and the second plate in order.
Description
AIR EXHAUSTING DEVICE
BACKGROUND OF THE INVENTION
1. Field of the Invention The present invention relates generally to a range hood, and more particularly to an air exhausting device of the range hood, which includes an oil container and an oil bore to collect oil.
BACKGROUND OF THE INVENTION
1. Field of the Invention The present invention relates generally to a range hood, and more particularly to an air exhausting device of the range hood, which includes an oil container and an oil bore to collect oil.
2. Description of the Related Art Typically, a conventional air exhausting device for a range hood includes a two-piece housing, in which an air chamber is formed, and a motor and two fans are received in the air chamber.
As shown in FIG. 10, the conventional housing includes a barrel portion 7 and an outlet 71 to form a "b" shaped member. The motor 71 with a spindle 721 and the fans 74 are received in the barrel portion 7. The housing has a turn portion 73 at a junction of the barrel portion 7 and the outlet 71.
This kind of air exhausting device usually causes greater vibration in exhaustion. The reason is that some oil will stick on an inner wall of a pipe 75, which is connected to the outlet 71, when the fans 74 are turning to exhaust oil smoke out via the outlet 71, and the oil will drop to blades 741 of the fans 74 from the turn portion 73, as shown in FIG 11. Unfortunately, the oil usually is stuck on some of the blades 741.
As more oil stuck on the blades 741 of the fans 74, the fans 74 will loose their balance and make a greater vibration when they are turning.
In addition, the two-piece housing usually has a leakage problem.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an air exhausting device, which prevents the oil from dropping to fans and prevents oil leakage.
According to the objectives of the present invention, an air exhausting device includes a housing, which includes a first case and a second case to form an air chamber therein, and a fan assembly, which includes a motor and two fans driven by the motor, received in the air chamber. The housing has two inlets associated with the fans respectively. The first case has an outlet and a connection portion on the outlet. An oil container, which has an oil bore on a bottom side thereof, is provided on a sidewall of the outlet, wherein the fans are not under the oil bore. The first case having a first plate and the second case has a second plate to guide oil in the oil container flowing to an oil bore on a bottom side of the second case through the oil bore, the first plate and the second plate in order.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective of a first preferred embodiment of the present invention;
FIG. 2 is a perspective view of the first case of the first preferred embodiment of the present invention;
FIG 3 is a perspective view of the second case and the barrier piece of the first preferred embodiment of the present invention;
FIG 4 is a top view of the first preferred embodiment of the present invention;
FIG. 5 and FICz 6 are two sectional views of the first preferred embodiment of the present invention;
FIG. 7 is a sectional view of the first preferred embodiment of the present invention, showing the path of oil flow;
FIG. 8 is a top view of a second preferred embodiment of the present invention, showing the rectangular outlet and the oil slot;
FIG. 9 is a top view of a third preferred embodiment of the present invention, showing the round outlet and the oil slot;
FIG. 10 is a sectional view of the conventional air exhausting device; and FICx lI is a sectional view of the conventional air exhausting device, showing oil dropping to the fans.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1 to FIG. 6, an air exhausting device of the first preferred embodiment of the present invention includes:
A housing, which consists of a first case 11 and a second case 12, has an air chamber therein. A fan assembly 13, which includes a motor 17 and two fans 131 driven by the motor 17, is received in the air chamber. The housing has two inlets 14, which are formed by the first case 11 and the second case 12, at opposite ends thereof associated with the fans 131 respectively. Two air shields 15 are mounted on housing to cover the fans 131 respectively. The first case 11 is provided with an outlet 16 and a connection portion 26 on a circumference of the outlet 16 to connect a pipe 18. The outlet 18 has a funnel-like structure, which a narrow end is communicated with the air chamber, to form an oil guiding structure. A wall is provided in the outlet 18 adjacent to a turned portion to form an oil container 19 therebetween and an oil bore 20 at a bottom side of the oil container 19. A first plate 21 is extended from the bottom side of the oil container 19, through the oil bore 20 also. The first plate 21 extends between the fans 131 to hold the motor 17 by the first plate 21 and a second plate 22 extended from the second case 12. The second case 12 is provided with an oil slot 23 at a bottom side thereof, a barrier piece 24 on the oil slot 23 and an oil bore 25 on a bottom side of the oil slot 23.
When the motor 17 turns the fans 131, oil smoke will be sucked into the air chamber via the inlets 14 and exhausted out via the outlet 16. Most of the oil in the oil smoke will be stuck on a sidewall of the air chamber and flow to the oil slot 23 along the sidewall to be discharged via the oil bore 25. Some oil will stick on the inner sidewall of the pipe 18 and flow back to the air chamber via the outlet 16.
Parts of the oil, showing in the right of FICx 6, will flow through the funnel-like oil guiding structure to be guided to flow downward along the sidewall of the air chamber to the oil slot 23 directly. The other of the oil will flow to the oil container 19, as shown in FIG 7, and flow through the oil bore 20, the first plate 21, the second plate 22 and the sidewall of the second case 12 in order, and then the oil will flow to the oil slot 23 to be discharged out of the housing via the oil bore 25.
Each of the air shields 15 has a ring 151 to cover the fan 131 to create an air resistance between the fans 131 and the rings that may block air flow of the fans 131 escaping therethrough.
When the air exhausting device of the present invention works, the barrier piece 24 above the oil slot 23 may prevent the oil in the oil slot 23 from being sucked out by the air flow of the fans 13 1. A gap 231 is formed between the barrier 24 and the oil slot 23 that may cause the oil, which runs on the sidewall of the air chamber, flowing into the oil slot 23 quickly.
FIG. 8 shows an air exhausting device of the second preferred embodiment of the present invention, which provides a rectangular outlet 16. Of cause, the outlet 16 may have various shapes except for the description in the specification. FIG 9 shows an air exhausting device of the third preferred embodiment of the present invention, which further provides an annular oil container 27 around an inner sidewall of the outlet 16.
In conclusion, the present invention may guide the oil to the oil container 19, and then the oil will flow through the oil bore 20, the first plate 21, the second plate 22 and the sidewall of the second case 12 in order, finally, the oil will flow to the oil slot 23 to be discharged out of the housing via the oil bore 25 that the oil will not drop to the fans131 to reduce the vibration of the fans 131.
The description above is a few preferred embodiments of the present invention and the equivalence of the present invention is still in the scope of the claim of the present invention.
As shown in FIG. 10, the conventional housing includes a barrel portion 7 and an outlet 71 to form a "b" shaped member. The motor 71 with a spindle 721 and the fans 74 are received in the barrel portion 7. The housing has a turn portion 73 at a junction of the barrel portion 7 and the outlet 71.
This kind of air exhausting device usually causes greater vibration in exhaustion. The reason is that some oil will stick on an inner wall of a pipe 75, which is connected to the outlet 71, when the fans 74 are turning to exhaust oil smoke out via the outlet 71, and the oil will drop to blades 741 of the fans 74 from the turn portion 73, as shown in FIG 11. Unfortunately, the oil usually is stuck on some of the blades 741.
As more oil stuck on the blades 741 of the fans 74, the fans 74 will loose their balance and make a greater vibration when they are turning.
In addition, the two-piece housing usually has a leakage problem.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an air exhausting device, which prevents the oil from dropping to fans and prevents oil leakage.
According to the objectives of the present invention, an air exhausting device includes a housing, which includes a first case and a second case to form an air chamber therein, and a fan assembly, which includes a motor and two fans driven by the motor, received in the air chamber. The housing has two inlets associated with the fans respectively. The first case has an outlet and a connection portion on the outlet. An oil container, which has an oil bore on a bottom side thereof, is provided on a sidewall of the outlet, wherein the fans are not under the oil bore. The first case having a first plate and the second case has a second plate to guide oil in the oil container flowing to an oil bore on a bottom side of the second case through the oil bore, the first plate and the second plate in order.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective of a first preferred embodiment of the present invention;
FIG. 2 is a perspective view of the first case of the first preferred embodiment of the present invention;
FIG 3 is a perspective view of the second case and the barrier piece of the first preferred embodiment of the present invention;
FIG 4 is a top view of the first preferred embodiment of the present invention;
FIG. 5 and FICz 6 are two sectional views of the first preferred embodiment of the present invention;
FIG. 7 is a sectional view of the first preferred embodiment of the present invention, showing the path of oil flow;
FIG. 8 is a top view of a second preferred embodiment of the present invention, showing the rectangular outlet and the oil slot;
FIG. 9 is a top view of a third preferred embodiment of the present invention, showing the round outlet and the oil slot;
FIG. 10 is a sectional view of the conventional air exhausting device; and FICx lI is a sectional view of the conventional air exhausting device, showing oil dropping to the fans.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1 to FIG. 6, an air exhausting device of the first preferred embodiment of the present invention includes:
A housing, which consists of a first case 11 and a second case 12, has an air chamber therein. A fan assembly 13, which includes a motor 17 and two fans 131 driven by the motor 17, is received in the air chamber. The housing has two inlets 14, which are formed by the first case 11 and the second case 12, at opposite ends thereof associated with the fans 131 respectively. Two air shields 15 are mounted on housing to cover the fans 131 respectively. The first case 11 is provided with an outlet 16 and a connection portion 26 on a circumference of the outlet 16 to connect a pipe 18. The outlet 18 has a funnel-like structure, which a narrow end is communicated with the air chamber, to form an oil guiding structure. A wall is provided in the outlet 18 adjacent to a turned portion to form an oil container 19 therebetween and an oil bore 20 at a bottom side of the oil container 19. A first plate 21 is extended from the bottom side of the oil container 19, through the oil bore 20 also. The first plate 21 extends between the fans 131 to hold the motor 17 by the first plate 21 and a second plate 22 extended from the second case 12. The second case 12 is provided with an oil slot 23 at a bottom side thereof, a barrier piece 24 on the oil slot 23 and an oil bore 25 on a bottom side of the oil slot 23.
When the motor 17 turns the fans 131, oil smoke will be sucked into the air chamber via the inlets 14 and exhausted out via the outlet 16. Most of the oil in the oil smoke will be stuck on a sidewall of the air chamber and flow to the oil slot 23 along the sidewall to be discharged via the oil bore 25. Some oil will stick on the inner sidewall of the pipe 18 and flow back to the air chamber via the outlet 16.
Parts of the oil, showing in the right of FICx 6, will flow through the funnel-like oil guiding structure to be guided to flow downward along the sidewall of the air chamber to the oil slot 23 directly. The other of the oil will flow to the oil container 19, as shown in FIG 7, and flow through the oil bore 20, the first plate 21, the second plate 22 and the sidewall of the second case 12 in order, and then the oil will flow to the oil slot 23 to be discharged out of the housing via the oil bore 25.
Each of the air shields 15 has a ring 151 to cover the fan 131 to create an air resistance between the fans 131 and the rings that may block air flow of the fans 131 escaping therethrough.
When the air exhausting device of the present invention works, the barrier piece 24 above the oil slot 23 may prevent the oil in the oil slot 23 from being sucked out by the air flow of the fans 13 1. A gap 231 is formed between the barrier 24 and the oil slot 23 that may cause the oil, which runs on the sidewall of the air chamber, flowing into the oil slot 23 quickly.
FIG. 8 shows an air exhausting device of the second preferred embodiment of the present invention, which provides a rectangular outlet 16. Of cause, the outlet 16 may have various shapes except for the description in the specification. FIG 9 shows an air exhausting device of the third preferred embodiment of the present invention, which further provides an annular oil container 27 around an inner sidewall of the outlet 16.
In conclusion, the present invention may guide the oil to the oil container 19, and then the oil will flow through the oil bore 20, the first plate 21, the second plate 22 and the sidewall of the second case 12 in order, finally, the oil will flow to the oil slot 23 to be discharged out of the housing via the oil bore 25 that the oil will not drop to the fans131 to reduce the vibration of the fans 131.
The description above is a few preferred embodiments of the present invention and the equivalence of the present invention is still in the scope of the claim of the present invention.
Claims (7)
1. An air exhausting device, comprising a housing, which includes a first case and a second case to form an air chamber therein, and a fan assembly, which includes a motor and two fans driven by the motor, received in the air chamber; the housing having two inlets associated with the fans respectively; the first case having an outlet and a connection portion on the outlet; an oil container, which has an oil bore on a bottom side thereof, provided on a sidewall of the outlet, wherein the fans are not under the oil bore; the first case having a first plate and the second case has a second plate to guide oil in the oil container flowing to an oil bore on a bottom side of the second case through the oil bore, the first plate and the second plate in order.
2. The air exhausting device as defined in claim 1, wherein the motor is hold between the first plate and the second plate.
3. The air exhausting device as defined in claim 1, further comprising two air shields, each of which has a ring, mounted on the housing to cover the fans respectively.
4. The air exhausting device as defined in claim 1, wherein the second case is provided with an oil slot, on a bottom side of which the oil bore is provided.
5. The air exhausting device as defined in claim 4, wherein the second case further is provided with a barrier piece above the oil slot and a gap is formed between the barrier piece and the oil slot.
6 6. The air exhausting device as defined in claim 1, wherein a location of the oil container is close to a spindle of the motor.
7. The air exhausting device as defined in claim 1, wherein the oil container is an annular member around the sidewall of the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002596895A CA2596895A1 (en) | 2007-08-10 | 2007-08-10 | Air exhausting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002596895A CA2596895A1 (en) | 2007-08-10 | 2007-08-10 | Air exhausting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2596895A1 true CA2596895A1 (en) | 2009-02-10 |
Family
ID=40348351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002596895A Abandoned CA2596895A1 (en) | 2007-08-10 | 2007-08-10 | Air exhausting device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2596895A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20120167A1 (en) * | 2012-12-20 | 2014-06-21 | Ivo Marra | PERFECTED ASPIRATING HOOD. |
| ITMC20120093A1 (en) * | 2012-12-20 | 2014-06-21 | Ivo Marra | PERFECTED ASPIRATING HOOD. |
| CN107990394A (en) * | 2018-01-22 | 2018-05-04 | 广东美的厨房电器制造有限公司 | A kind of noise reduction range hood with double air intake structures |
| CN115111622A (en) * | 2022-05-26 | 2022-09-27 | 浙江京惠机电有限公司 | Intelligent lampblack protection device and method suitable for range hood motor |
-
2007
- 2007-08-10 CA CA002596895A patent/CA2596895A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20120167A1 (en) * | 2012-12-20 | 2014-06-21 | Ivo Marra | PERFECTED ASPIRATING HOOD. |
| ITMC20120093A1 (en) * | 2012-12-20 | 2014-06-21 | Ivo Marra | PERFECTED ASPIRATING HOOD. |
| CN107990394A (en) * | 2018-01-22 | 2018-05-04 | 广东美的厨房电器制造有限公司 | A kind of noise reduction range hood with double air intake structures |
| CN115111622A (en) * | 2022-05-26 | 2022-09-27 | 浙江京惠机电有限公司 | Intelligent lampblack protection device and method suitable for range hood motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20100810 |