TWI804271B - Two-stage range hood - Google Patents

Abstract

A two-stage range hood is mainly characterized in that an air suction hood and an air blowing hood are respectively arranged around a burner base with a space. The air suction hood has a suction pipe provided with a plurality of suction holes. The air blowing hood has a blowing pipe provided with a plurality of blowing holes. A blowing sleeve is disposed between the air blowing hood and an air supply device. A suction sleeve is disposed between the air suction hood and an air extraction device. The air supply device supplies outside air toward a direction of the burner base through the blowing pipe to generate an air wall thereby surrounding oil fume. The air extraction device then inhales the oil fume through the suction pipe. Simultaneously, the blowing sleeve and the suction sleeve can increase wind force, and that allows the air supply device and the air extraction device to operate in a low rotation speed. Thus, the effect of capturing the oil fume is improved effectively. The noise generated while the two-stage range hood operates is greatly reduced. The efficiency of removing the oil fume is improved.

Description

Two stage range hood

The invention relates to a range hood structure, in particular to a two-stage range hood.

The range hood currently available on the market, whether it is a top suction type or a slanted back type, has an effective suction distance of about 40 cm. It cannot be effectively discharged outwards and drifts into the indoor space, which will cause the surrounding walls and ceilings to adhere to greasy dirt that is difficult to remove. At the same time, users are likely to cause lung health damage due to inhalation of oil fumes. If it is to increase the range hood Increasing the rotational speed due to the suction force will produce excessive noise, which will affect the user's hearing in the long run, which really needs to be improved.

Check, Taiwan invention patent I516725 discloses a smoke collecting box type range hood, which uses the top frame and side walls to form a smoke collecting box around the source of oil fume, and then cooperates with the exhaust motor to discharge, so as to limit the oil fume and discharge it concentratedly. However, its Not only does it have the disadvantage of bulkiness, but oil stains are easy to adhere to the interior of the smoke collection box, and it needs to be cleaned frequently. In addition, Taiwan's new patent M615560 discloses a range hood with a lead screw direct drive lift duct, and Taiwan's new patent M604382 Disclosed is a range hood with a lifting air duct module, which uses the air duct to vertically lift and close to the source of the oil fume, so as to align with the source of the oil fume and improve the efficiency of removing the oil fume. However, part of the oil fume may still overflow outwards, and It is easy to hinder the cooking operation, which needs to be improved.

Taiwan's new patent M617946 discloses an intelligent monitoring range hood, which uses the electronic control unit to receive the values sent by various temperature sensors and sensors to perform calculations, so as to make corresponding actions, such as controlling the rotation of the fan to discharge the oil fume, monitoring cooking Oil temperature or water temperature, monitoring humidity, carbon monoxide concentration, carbon dioxide concentration, suspended particle concentration and gas concentration, etc., but not only the structure is complicated, but also the installation is not easy, and it also has the disadvantage of high cost. Check again, Taiwan's new patent M619804 Disclosed is an exhaust control device, which utilizes the power supply of the AC exhaust equipment and the mains power supply to set up a speed regulation module, and the speed regulation module is controlled in conjunction with the smart knob of the application equipment, so that the speed regulation module can be controlled according to the intelligence. The spatial attitude of the knob automatically makes the corresponding wind speed setting and exhaust operation, so as to maintain the indoor air quality at any time. However, it also has the disadvantages of complex structure and high cost, which really needs to be improved.

Therefore, the purpose of the present invention is to provide a two-stage range hood, which generates an air wall with low speed and high spiral wind force to lock the lampblack, and then inhales and filters the lampblack and discharges it outward, which not only effectively limits the fume from drifting, but also Significantly reduces the generation of noise and improves the efficiency of removing oil fume.

Therefore, the two-stage range hood of the present invention includes a stove base, a furnace base arranged on the top of the furnace base, an exhaust hood arranged around the furnace base, an exhaust duct arranged on the exhaust hood, and a ring set The air supply hood of the exhaust hood, an air supply duct provided in the air supply hood, an air supply device provided in the stovetop and connected to the air supply duct, an air supply sleeve provided between the air supply duct and the air supply device, An exhaust device installed in the stove and connected to the exhaust duct, an exhaust sleeve arranged between the exhaust duct and the exhaust device, and a filter installed on the side of the stove and connected to the exhaust device device, wherein the air extraction duct is provided with a plurality of air extraction holes, the air supply duct is provided with a plurality of air supply holes, and the air supply hood, the exhaust hood, and the furnace seat are arranged at intervals, and the air supply sleeve and the air exhaust sleeve There are spiral grooves in the pipe respectively; when the furnace base is in use and oil fume is generated, the air supply device will convey the air to the air supply sleeve, and blow it out through the air supply hole of the air supply duct at low speed and high spiral wind force, In order to create an air wall that covers the oil fume, the exhaust device then passes the oil fume through the air hole of the air duct, and through the exhaust sleeve at low speed and high spiral wind force, it is drawn out, and then filtered and discharged by the filter device , not only effectively confines the oily fume in the air wall to enhance the effect of oily fume capture, but also the aforementioned low-speed and high-spiral wind design can greatly reduce the generation of noise, thereby improving the efficiency of oily fume removal.

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

Referring to Fig. 1 and shown in Fig. 2, a preferred embodiment of the two-stage range hood 3 of the present invention, the two-stage range hood 3 includes a stove 31, a stove seat 32 located on the top of the stove 31, One ring is located at the exhaust hood 33 around the furnace base 32, one is located at the exhaust conduit 34 of the exhaust hood 33, one is located at the air supply hood 35 around the exhaust hood 33, and one is located at the air supply hood 35. Air supply conduit 36, one is located in this furnace platform 31 and the air supply device 37 that is connected with this air supply conduit 36, one is located at this air supply conduit 36 and this air supply sleeve A between this air supply device 37, one is located in this furnace platform 31 and An exhaust device 38 connected to the exhaust duct 34, an exhaust sleeve B located between the exhaust duct 34 and the exhaust device 38, and a filter located on the side of the stove 31 and connected to the exhaust device 38 Device 39, wherein, the air supply hood 35, the air extraction hood 33, and the furnace base 32 are arranged at intervals, and the air extraction conduit 34 is provided with a plurality of air extraction holes 341, and the air supply conduit 36 is provided with a plurality of air supply holes 361, and The air supply sleeve A and the air exhaust sleeve B are respectively provided with spiral grooves C. In addition, the stove base 32 can be used for placing a pot 4 for cooking.

Referring to Fig. 1, Fig. 3 and shown in Fig. 4, this air extraction hood 33 has a lower layer air cover 331, and an upper layer air cover 332 located above the lower layer air cover 331, and the air extraction conduit 34 is located at the lower layer Between the air cover 331 and the upper layer air cover 332, in addition, the air supply cover 35 has a bottom section air cover 351, and a top section air cover 352 located above the bottom section air cover 351, and the air supply duct 36 is provided between the bottom air cover 351 and the top air cover 352 .

Referring to Fig. 1 and shown in Fig. 2, this blower device 37 has a fan 371 located at one side of the stove 31, a blower motor 372 connected to the fan 371 and the air supply duct 36, and a blower motor 372 for accommodating In addition, the ventilation device 38 has a ventilation motor 381 connecting the suction duct 34 and the filter device 39, and a placement box 382 for the ventilation motor 381 to be placed, and the filter device 39 has a Be located at this hearth 31 side and be connected with the exhaust pipe 391 of this suction motor 381, a filter 392 that is connected with this exhaust pipe 391, and a filter screen 393 that is located in this filter 392.

Referring to Fig. 1, Fig. 5 and Fig. 6, when the two-stage range hood 3 is in use, the pot 4 is placed on the stove base 32 for cooking. The utensil 4 is placed on the stove base 32 for cooking. When the user cooks and generates oily smoke, the fan 371 guides the external air into the air motor 372 by activating the air blower 37 and the air exhauster 38. The air is then guided by the air supply motor 372 to the air supply hood 35 through the air supply sleeve A. When the external air is delivered to the air supply hood 35 through the air supply sleeve A, it passes through the air supply sleeve A The design of the spiral groove C makes the external air output from the air supply hood 35 through the air supply duct 36 at a low speed and high spiral wind force, and is directed toward the furnace base 32 through the air supply hole 361 provided in the air supply duct 36 and blowing in the direction of the cooking utensil 4, so as to form an air wall surrounding the stove base 32 and the cooking utensil 4, the aforesaid air wall can effectively gather and block the oil fumes produced, and at the same time limit the scattering of the oil fumes, so as to prevent the oil fumes from flying away. There is a problem of grease sticking to the surrounding walls or ceilings.

Referring to Fig. 1, Fig. 6 and Fig. 7, then cooperate with the suction motor 381 to generate suction, and then link the suction hood 33 to inhale the oil fume, that is, the oil fume can pass through the air suction hole 341 arranged in the air suction duct 34 Inhaled and transported to the filter device 39, and the oil fume is conveyed to the filter device 39 through the air extraction hole 341 of the exhaust duct 34, and the design of the spiral groove C of the exhaust sleeve B makes the oil fume Inhaled by the exhaust hood 33 through the exhaust conduit 34 at low rotational speed and high spiral wind force, and guided to the filter device 39 through the exhaust hole 341 provided in the exhaust conduit 34, not only has better oil fume capture effect, and the design of the air supply sleeve A and the exhaust sleeve B to generate low-speed and high-spiral wind force can significantly reduce the generation of noise.

Continue the above, then the oil fume enters the filter 392 from the exhaust pipe 391, and is filtered by the filter screen 393 to change into clean gas, and finally the clean gas is discharged outward, so that the oil fume can be completely discharged Filtration operation, therefore, the two-stage range hood 3 of the present invention utilizes the air supply hood 35 and the exhaust hood 33 to surround the furnace base 32 at intervals, so as to surround and limit the oil fume with the produced air wall, and the air supply cover The design of low speed and high spiral wind force generated by the pipe A and the spiral groove C of the exhaust sleeve B is used to respectively introduce the external air and quickly extract the oily fume, and then filter and discharge it by the filter device 39, not only will not be used during use It hinders the cooking operation, and has the advantages of simple structure, simple and convenient operation, and low noise. It can also effectively maintain the indoor air quality and improve the efficiency of removing oil fume.

To sum up the foregoing, the two-stage range hood of the present invention uses the air wall generated by the air supply device and the air supply duct to limit the fume from drifting away, and then uses the air exhaust device and the air extraction duct to extract the oil fume to the outside, and cooperates with the air supply The sleeve and the exhaust sleeve are designed with low speed and high spiral wind force, and then the filter device filters the oil fume, which not only greatly improves the oil fume capture effect, but also greatly reduces the noise generation, thereby improving the efficiency of oil fume removal.

But the above is only to illustrate the preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all the simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention , should still fall within the scope covered by the patent of the present invention.

(this invention) 3: Two-stage range hood 31: Hearth 32: furnace seat 33: Extraction hood 34: Suction duct 35: air supply hood 36: air supply duct 37: Air supply device 38: ventilation device 39: Filtration device 331: lower air cover 332: Upper air cover 341: Air extraction hole 351: Bottom gas cover 352:Top gas cover 361: Air supply hole 371: fan 372:Blower motor 373: storage box 381: Ventilation motor 382: place box 391: exhaust pipe 392: filter 393: Filter A: air supply sleeve B: Exhaust sleeve C: spiral groove 4: pot

Fig. 1 is an exploded perspective view of a preferred embodiment of the present invention. Fig. 2 is a schematic diagram of the preferred embodiment. 3-4 are exploded views of partial components of the preferred embodiment. 5-7 are schematic diagrams of the operation of the preferred embodiment.

3: Two-stage range hood

31: Hearth

32: furnace seat

33: Extraction hood

34: Suction duct

35: air supply hood

36: air supply duct

37: Air supply device

38: ventilation device

39: Filtration device

331: lower air cover

332: Upper air cover

341: Air extraction hole

351: Bottom gas cover

352:Top gas cover

361: Air supply hole

371: fan

372:Blower motor

373: storage box

381: Ventilation motor

382: place box

391: exhaust pipe

392: filter

393: Filter

A: air supply sleeve

B: Exhaust sleeve

C: spiral groove

4: pot

Claims (6)

A two-stage range hood, which includes a stove, and a stove seat on the top of the stove, and the stove seat can be used to place a pot; it is characterized in that: the stove seat is surrounded by an exhaust hood , an air suction duct arranged in the air extraction hood, an air supply hood surrounding the exhaust hood, and an air supply duct located in the air supply hood, wherein the air extraction duct is provided with a plurality of air extraction holes, and the air supply duct is provided with There are a plurality of air supply holes. In addition, the air supply hood, the exhaust hood, and the furnace base are arranged at intervals, and an air supply device connected to the air supply duct is installed in the furnace platform, and an air supply device is installed between the air supply duct and the air supply device. Sleeve, an exhaust device connected to the air extraction duct, and an exhaust sleeve arranged between the air extraction duct and the exhaust device, and the air supply sleeve and the exhaust sleeve are respectively provided with spiral grooves, the furnace platform A filtering device connected to the ventilation device is provided on the side. According to the two-stage range hood described in claim 1, wherein, the exhaust hood has a lower air hood, and an upper air hood arranged above the lower air hood, and the air extraction duct is arranged on the lower air hood and the upper gas hood. According to claim 1, the two-stage range hood, wherein, the air delivery hood has a bottom section air cover, and a top section air cover arranged above the bottom section air cover, and the air supply duct is arranged at the bottom section Between the gas cover and the top section of the gas cover. According to claim 1, the two-stage range hood, wherein, the air supply device has a fan installed on one side of the stove, an air supply motor connected to the fan and the air supply duct, and a housing for the air supply motor. Storage box. According to claim 1, the two-stage range hood, wherein, the ventilation device has a ventilation motor connected to the suction duct and the filter device, and a storage box for the ventilation motor to be placed. According to the two-stage range hood described in claim 1, wherein the filter device has an exhaust pipe arranged on one side of the stove and connected to the exhaust device, a filter connected to the exhaust pipe, and a The filter screen inside the filter.

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