TWI839998B - Range hood provided with an air wall channel - Google Patents

Abstract

A range hood provided with an air wall channel mainly includes an air ring arranged around a burner base and an air exhaust device disposed on a top plate which is situated correspondingly to the burner base. The air ring is connected to an air supply device. The air exhaust device has a storage unit, a telescopic air hood penetrating the top plate, a drive unit capable of expanding and contracting the telescopic air hood, and an air suction and filtering device located opposite to the telescopic air hood. Thus, the air supply device supplies outside air upwards through the air ring to generate an air wall channel. Simultaneously, the telescopic air hood is extended downwards to connect with the air wall channel thereby surrounding oil fume effectively and reducing required horsepower and rotation speed greatly. Hence, the noise generated while the range hood operates is reduced. The effect of removing the oil fume is improved.

Description

Range hood combined with air wall channel

The present invention relates to a range hood structure, in particular to a range hood combined with an air wall channel.

According to the research, range hoods are commonly used to purify the kitchen environment. By installing the range hood above the source of oil smoke, the oil smoke produced by combustion can be quickly extracted, filtered and discharged to the outside, so as to achieve the effect of purifying the oil smoke and reducing pollution. However, the effective suction distance of the range hood currently on the market is about 40 cm, but the cooking pot noodles Usually, the distance from the range hood is more than 40 cm, which makes it impossible for the generated fumes to be effectively discharged to the outside and adhere to the surrounding walls and ceiling. At the same time, the residual fumes will endanger the lung health of the user. If the speed of the range hood is increased to increase the suction power, excessive noise will be generated, which will also affect the user's hearing in the long run. This really needs to be improved.

According to the Taiwan Patent No. M606592, a European-style double-wind stomach exhaust hood is disclosed. The airflow generated by the two wind stomachs achieves an efficient diversion effect, so as to improve the exhaust capacity and reduce the noise of use while maintaining aesthetics. However, the exhaust effect of the European-style exhaust hood is still not as good as that of the Chinese-style exhaust hood, and the oil absorption efficiency is not high. In addition, Taiwan Patent No. M618011 discloses an exhaust hood with a lifting air outlet. The exhaust hood uses a lifting body and a lifting unit to make the air intake port liftable to the source of oil smoke. However, the lifting height of the exhaust hood can only reach 25 cm at most, so that some oil smoke will still overflow and easily hinder the cooking operation. There is room for improvement.

Taiwan's new patent M621478 discloses a quick assembly structure for a range hood duct assembly. It provides a structure for assembling the duct assembly into an assembly port. When assembling, there is no need to find high and low points to align the locking points. The assembly can be completed by simply pressing down to the bottom without calibration. However, although it improves the convenience of assembly, it still cannot effectively improve the efficiency of removing oil smoke. Taiwan's invention patent I665410 discloses a quick odor removal method for a range hood. It uses the fan of the fan unit to automatically adjust the speed in stages so that the fan can be removed in the shortest time. The invention aims to discharge the smell and oil smoke under the condition of the most economical power consumption. However, it must be calculated by the ventilation rate, which is relatively complicated in implementation and therefore difficult to be widely used in ordinary households. Further investigation shows that Taiwan invention patent I720659 discloses an oil exhaust structure of a wind shield, which is fixed at the end of the exhaust pipe of the oil hood to prevent the backflow of strong external wind and avoid the accumulation of waste oil and affect the exhaust effect of oil smoke. However, its structural assembly is relatively complicated, making the subsequent cleaning and treatment of waste oil difficult to carry out, which really needs to be improved.

Therefore, the purpose of the present invention is to provide a fume exhaust fan combined with an air wall channel, which uses an air wall channel from bottom to top to limit the fume, and cooperates with a telescopic air hood from top to bottom to guide the exhaust of the fume, which not only effectively blocks and captures the fume, but also greatly reduces the generation of noise and further enhances the effect of exhausting the fume.

Therefore, the range hood combined with the air wall channel of the present invention comprises a furnace, a furnace base arranged on the furnace, a top plate extending upward from the furnace, an air ring arranged around the furnace, an air supply device arranged in the furnace and connected to the air ring, an air supply sleeve arranged between the air ring and the air supply device, and an exhaust device arranged on the top plate and corresponding to the furnace base, wherein the air ring is provided with a plurality of air holes, the air supply sleeve is provided with a spiral groove, and the exhaust device has a storage unit arranged on the top plate, a telescopic air hood penetrating the top plate, a driving member arranged in the storage unit, and an exhaust device arranged in the storage unit and opposite to the telescopic air hood. filter device; when the stove is in use and generates oil smoke, the air supply device transports wind to the air ring and forms a low-speed and high-spiral wind to blow outward through the air supply sleeve, and at the same time generates an air wall channel from bottom to top to block the oil smoke, and the telescopic air hood descends from top to bottom toward the stove, so that the oil smoke enters the exhaust filter device through the telescopic air hood for filtering and exhaust. Therefore, the two-stage configuration design of the telescopic air hood and the air wall channel not only effectively limits and blocks the oil smoke to enhance the oil smoke capture effect, but also makes the horsepower required by the air supply device and the exhaust filter device smaller and the speed slower, which can reduce the noise generation, thereby enhancing the effect of removing the oil smoke.

The other technical contents, features and effects of the present invention mentioned above will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings.

Referring to Fig. 1, Fig. 2 and Fig. 3, a preferred embodiment of the oil hood 3 in combination with the air wall channel C of the present invention comprises a furnace 31, a furnace base 32 disposed on the furnace 31, a top plate 33 extending upward from the furnace 31 and disposed corresponding to the furnace 31, an air ring 34 disposed around the furnace base 32, an air supply device 35 disposed in the furnace 31 and connected to the air ring 34, and a An air supply sleeve 36 connected to the air supply device 35, an air ring adapter 37 disposed between the air supply sleeve 36 and the air ring 34, and an exhaust device 38 disposed on the top plate 33 and corresponding to the stove base 32, wherein the air ring 34 is provided with a plurality of air holes 341 around the periphery, and a spiral groove 361 is provided in the air supply sleeve 36. In addition, the stove base 32 can accommodate a pot 4 for cooking operations.

1 and 2, the exhaust device 38 comprises a storage unit 381 disposed on the top plate 33, a retractable air hood 382 penetrating the top plate 33, a driving member 383 disposed in the storage unit 381 and capable of driving the retractable air hood 382 to move, and an exhaust filter device 384 disposed in the storage unit 381 and opposite to the retractable air hood 382. In this embodiment, the retractable air hood 382 is provided in the top plate 33. The compressed air hood 382 has an upper air hood 382A disposed on the top plate 33, and a lower air hood 382B connected to the upper air hood 382A, and the two sides of the driving member 383 are mutually engaged with the upper air hood 382A, so that when the driving member 383 is actuated, it can link the upper air hood 382A and the lower air hood 382B to be lowered or retracted, that is, to be lowered toward the direction of the furnace seat 32. The retractable air hood 382 can be lowered or retracted toward the storage unit 381, so that the retractable air hood 382 can be stored in the storage unit 381 when not in use, thereby reducing the occupied volume and achieving an aesthetic effect. The driving member 383 can directly drive the retractable air hood 382 to move by rotating, or a rope (not shown) can be set between the driving member 383 and the retractable air hood 382 to move. The effect of pulling the retractable air hood 382 can be achieved by rolling up the rope. In addition, the upper air hood 382A and the lower air hood 382B can be separated and disassembled, which is more conducive to subsequent transportation, assembly and cleaning operations. At the same time, the material cost of the upper air hood 382A and the lower air hood 382B is low. When they become dirty or damaged after long-term use, they can be directly replaced, which is more economical.

Referring to Figures 2, 3 and 4, the exhaust hood 3 combined with the air wall channel C is used. When the pot 4 is placed on the stove base 32 for cooking, when the user produces oil smoke during cooking, the air supply device 35 is activated so that the air supply device 35 guides the external air to the air ring 34, and then the spiral groove 361 of the air supply sleeve 36 is used to The design allows the external air to be outputted toward the top plate 33 through the air holes 341 of the air ring 34 at a low speed and high spiral wind force, so as to form a cylindrical air wall channel C. The air wall channel C can effectively gather and block the generated oil smoke, and at the same time limit the dispersion of the oil smoke, so as to avoid the problem of oil stains adhering to the surrounding walls or ceilings due to the dispersion of the oil smoke.

Referring to FIG. 1, FIG. 4 and FIG. 5, the driving member 383 and the exhaust filter device 384 are then activated, so that the driving member 383 links the upper air hood 382A and the lower air hood 382B to extend downward toward the pot 4. At this time, the lower air hood 382B is just engaged with the air wall channel C, so that the oil smoke blocked by the air wall channel C can be sucked in by the suction force generated by the exhaust filter device 384, that is, the oil smoke in the air wall channel C can be sequentially sucked through the lower air hood 382B, the upper air hood 382B, and the lower air hood 382B. 2A enters the exhaust filter device 384 for filtering and is transformed into clean gas, and finally the clean gas is discharged to the outside, thus completing the filtration of oil smoke. Because the air wall channel C generated by the air supply device 35 and the air ring 34 extends upward from the stove base 32 by about 35 cm, and at the same time, the telescopic air hood 382 extends downward from the top plate 33 by about 35 cm, when the air wall channel C is connected with the telescopic air hood 382, the oil smoke can be limited to the effective suction distance without being scattered outward. In addition, from bottom to top, The two-stage matching design of the air wall channel C and the telescopic air hood 382 from top to bottom makes the air supply device 35 and the exhaust filter device 384 require less horsepower and slower rotation speed, which can greatly reduce the noise. Moreover, when the range hood 3 combined with the air wall channel C is used, it will not hinder the cooking operation, and has the advantages of simple structure and easy operation, which can effectively maintain the indoor air quality and enhance the effect of removing oil smoke. As shown in FIG3, the telescopic air hood 382 is not used. When the air hood 382B and the upper air hood 382A are retracted toward the storage unit 381, the lower air hood 382B and the upper air hood 382A are sequentially retracted toward the top plate 33 and stored in the storage unit 381, which not only reduces the occupied volume but also has an aesthetic effect. Of course, the user can also install the air ring 34, the air supply device 35, the air supply sleeve 36, the air ring adapter 37 and the exhaust device 38 on the old range hood (not shown in the figure) according to actual use needs, which increases the convenience and applicability of use.

To summarize the above, the oil fume exhaust fan combined with the air wall channel of the present invention forms a low speed and high spiral wind force through the air supply sleeve, and the air supply device and the air ring generate an air wall channel from bottom to top, and the telescopic air hood is connected with the air wall channel from top to bottom to effectively gather and block the oil fume, and then the exhaust filter device is used to filter and discharge it, which not only greatly improves the oil fume capture effect, but also effectively reduces the required horsepower and speed, and further reduces the noise generation, thereby improving the effect of removing oil fume.

However, the above is only to illustrate the preferred embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention. In other words, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention specification should still fall within the scope of the present invention patent.

(This invention)

3: Combined range hood with air wall channel

31: Stove

32: Hearth

33: Top plate

34: Air ring

35: Air supply device

36: Air supply casing

37: Air ring adapter

38: Exhaust device

341: Stoma

361:Spiral groove

381: Storage unit

382: Retractable air hood

383:Driver

384: Air extraction filter device

382A: Upper air shield

382B: Lower air shield

C: Air wall channel

4: Cookware

Figure 1 is a three-dimensional exploded view of a preferred embodiment of the present invention.

Figure 2 is a schematic diagram of the preferred embodiment.

Figure 3-5 is a schematic diagram of the operation of the preferred embodiment.

3: Combined range hood with air wall channel

31: Stove

32: Hearth

33: Top plate

34: Air ring

35: Air supply device

36: Air supply casing

37: Air ring adapter

38: Exhaust device

341: Stoma

381: Storage unit

382: Retractable air hood

383:Driver

384: Air extraction filter device

382A: Upper air shield

382B: Lower air shield

Claims (4)

A range hood combined with an air wall passage comprises a stove, a stove base arranged on the stove, and a top plate extending upward from the stove and arranged corresponding to the stove, and the stove base can be used to place a pot that produces oil smoke; the feature is that: an air ring with a plurality of air holes is arranged around the stove base, and an air supply device connected to the air ring is arranged in the stove, and an air supply sleeve is arranged between the air ring and the air supply device, and the air supply sleeve has a spiral groove, and the top plate is provided with a An exhaust device is arranged corresponding to the stove base, wherein the exhaust device has a storage unit arranged on the top plate, a retractable air hood penetrating the top plate, a driving member arranged in the storage unit and capable of driving the retractable air hood to move, and an exhaust filter device arranged in the storage unit and opposite to the retractable air hood. When the air supply device outputs external air to the top plate through the air ring, the spiral groove of the air supply sleeve can form a low speed and high spiral wind force and generate an air wall channel to limit oil smoke. According to the range hood combined with an air wall channel as described in claim 1, an air ring adapter is provided between the air ring and the air supply device. According to claim 1, the range hood combined with the air wall channel, wherein the retractable air hood has an upper air hood disposed on the top plate, and a lower air hood connected to the upper air hood. According to claim 3, the range hood combined with the air wall channel, wherein the upper air hood and the lower air hood are designed to be detachable and separable.

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