TWM648841U - range hood - Google Patents

Abstract

The range hood of this invention includes a body, an air extraction box fixed on the body, a filter and an air extraction motor. The machine body has a top plate and a peripheral wall extending downward from the top plate. A smoke collecting chamber is formed between the top plate and the peripheral wall. The peripheral wall forms a smoking port connected to the smoke collecting chamber. The top plate has a smoke exhaust port connected to the smoke collecting chamber; the air box It has a smoke exhaust channel and the smoke exhaust channel is connected to the smoke exhaust outlet; the filter screen is installed obliquely in the smoke exhaust channel and is used to filter the oil smoke flowing from the smoke exhaust outlet into the smoke exhaust channel, so that the oil droplets generated by the oil smoke slide off the filter screen; The air extraction motor is fixed in the smoke exhaust channel and is located downstream of the filter. The air extraction motor is started to make the oil smoke flow through the smoke collecting chamber through the smoking port and into the smoke exhaust channel through the smoke exhaust port. In this way, the aforementioned oil droplets slide off the inclined filter screen, thereby achieving the effect of not needing to replace the filter screen.

Description

range hood

This creation is related to range hoods, especially a range hood that does not require replacement of the filter.

The range hood can remove the oil fume produced when cooking food, preventing the oil fume from remaining in the kitchen and causing oil stains, or from being inhaled by the human body and affecting health.

A conventional range hood has a body, a filter installed at the bottom of the body, an exhaust box fixed above the body, and an exhaust motor installed in the exhaust box. By starting the exhaust motor, the oil smoke is removed from the body. The outside is sucked into the exhaust box, and the oil fume sucked into the body is filtered through the filter, and then the oil fume is discharged to the outside, thereby achieving the effect of discharging oil fume. However, the filter easily absorbs the oil droplets in the oil smoke, so users often need to replace the filter. This not only produces consumables but also increases the cost of replacing the filter. Therefore, there is still room for improvement in the structure of conventional range hoods.

The main purpose of this invention is to provide a range hood that does not require replacement of the filter, so no consumables are produced and the cost of replacing the filter can be reduced.

In order to achieve the above main purpose, the range hood of this invention includes a body, an air box, a filter, and an air extraction motor. The machine body has a top plate and a peripheral wall extending downward from the top plate. A smoke collecting chamber is formed between the top plate and the peripheral wall. The bottom of the peripheral wall forms a smoking port connected to the smoke collecting chamber. The top plate has a smoke collecting chamber. The smoke exhaust port is connected to the smoke collecting chamber; the exhaust box has a smoke exhaust channel, and the exhaust box is fixed on the machine body, so that the smoke exhaust channel is connected to the smoke exhaust port; the filter is installed obliquely on the smoke exhaust port The channel is used to filter the oil smoke flowing from the smoke exhaust port into the smoke exhaust channel, so that the oil smoke filtered by the filter screen can be The generated oil droplets slide off the filter screen; the air extraction motor is fixed in the smoke exhaust channel of the air extraction box and is located downstream of the filter screen. When the air extraction motor is started, the oil smoke flows through the smoking port It flows into the smoke exhaust channel through the smoke collecting chamber and the smoke exhaust port.

With the above technical features, by placing the filter obliquely in the smoke exhaust channel of the exhaust box, the oil droplets generated by the oil smoke filtered by the filter are allowed to slide off the filter, that is, there is no need to replace the filter. filter, thereby solving the problem of consumables and reducing the cost of replacing the filter.

Preferably, the filter is tilted at an angle between 30 degrees and 45 degrees. In this way, the oil droplets accumulated on the filter can slide off the filter under the action of gravity.

Preferably, one side of the inner wall surface of the exhaust box is provided with a supporting member, and the other side of the inner wall surface of the exhaust box is provided with an oil accumulation tank, and a collector detachably installed below the oil accumulation tank. Oil cup, the oil reservoir has an oil-receiving part, and the oil-receiving part has an oil hole; the filter screen is disposed across the support member and the oil-receiving part of the oil reservoir, so that the filter screen is free from the support The piece is installed in the smoke exhaust channel with a downward slope toward the direction of the oil accumulation tank. When the oil droplets generated by the oil smoke filtered by the filter screen slip from the filter screen, the aforementioned oil droplets flow into the oil collection tank. and flows into the oil collecting cup from the oil hole.

Preferably, the oil collecting tank has two hooks spaced at the bottom of the oil receiving portion, and the oil collecting cup is embedded in the hooks of the oil collecting tank with two flanges, so that the oil collecting cup can be Detachably installed below the oil tank.

Preferably, the filter screen has a fixed frame, a plurality of first grid bars accommodated in the fixed frame, and a plurality of second grid bars accommodated in the fixed frame, each of the first grid bars having a first wall, and two first guide parts connected to two opposite sides of the first wall, a first guide groove is formed between the first wall and the first guide parts; each second grid has a the second wall, and two second guide parts connected to two opposite sides of the second wall, a second guide groove is formed between the second wall and the second guide parts; the first gratings and the The second grating bars are arranged in a staggered manner, and each first grating bar faces the second guide groove of each second grating bar with the first guide groove. The guide parts are respectively embedded in the second guide grooves of the two adjacent second grid bars, and the second guide parts are respectively embedded in the first guide grooves of the two adjacent first grid bars, so that the adjacent A first channel connected to the smoke exhaust channel is formed between the two first guide parts, and a second channel connected to the smoke exhaust port is formed between two adjacent second guide parts, and the adjacent second guide parts form a second channel connected to the smoke exhaust outlet. A third channel connecting the first and second channels is formed between the first and second guide parts; the aforementioned oil smoke passes through the second channels and the third channels of the filter through the smoke exhaust port in sequence. channels and the first channels flow into the smoke exhaust channel. In this way, through the structural design of the first, second, and third channels, the oil fume can be effectively diverted and intercepted.

Preferably, the body has a guide plate arranged on the smoking port, and the guide plate is used to cover a part of the smoking port and to guide the oil smoke to flow into the smoking port. In this way, a slit is formed between the periphery of the deflector and the smoking port, allowing the oil smoke to pass through the slit and enter the smoking port more quickly.

Preferably, the front side of the top plate has two spaced apart first hooks, and the rear side of the top plate has two spaced apart magnets; the guide plate has two spaced apart second hooks, and the guide plate has two spaced apart first hooks. Each of the second hooks is respectively hooked with each of the first hooks of the top plate, and the guide plate is attracted by the magnets of the top plate and is firmly installed on the smoking port. In this way, the guide plate is detachably disposed on the smoking port.

The detailed structure, features, assembly or usage of the range hood provided by this invention will be described in the subsequent detailed description of the implementation. However, those with ordinary knowledge in the art should understand that these detailed descriptions and specific examples for implementing the invention are only used to illustrate the invention and are not intended to limit the scope of the patent application of the invention.

1: Range hood

10: Body

11: Top plate

111: First hook

112:Magnet

12: Surrounding wall

13: Smoke collecting room

14: Smoking port

15: Smoke exhaust port

16: deflector

161: The second hook

17: slit

20:Exhaust box

20A:Outer flange

21: Smoke exhaust channel

22:Export

23: Supporting parts

24: Oil tank

26: Oil receiving department

261:Oil hole

27: Hook

28:Oil collecting cup

29:Flange

30: filter

31:Fixed frame

32:The first bar

33:The first wall

34:First Guidance Department

35: First guide groove

38:Second Bar

39:Second wall

40:Second Guidance Department

41:Second guide groove

50:Extraction motor

C1: first channel

C2: Second channel

C3: The third channel

R: rivet

θ: angle

The following is a further explanation of the range hood of the present invention using embodiments and drawings, wherein: Figure 1 is a three-dimensional assembly view of the range hood of the present invention; Figure 2 is a three-dimensional exploded view of Figure 1; Figure 3 is a perspective view of the range hood of the present invention. Figure 4 is a perspective exploded view of Figure 3; Figure 5 is a top view of the range hood; Figure 6 is a cross-sectional view along line A-A in Figure 5, showing the presence of oil smoke in this invention. The flow pattern in the range hood of this creation; Figure 7 is a cross-sectional view along the B-B line in Figure 5; Figure 8 is a three-dimensional combination view of the oil collection tank and oil cup provided by the range hood of this creation; Figure 9 is this creation A partial cross-sectional view of the filter provided by the range hood; Figure 10 is a partial enlarged view of Figure 9; and Figure 11 is a cross-sectional view along the C-C line in Figure 6, showing the flow of oil smoke in the filter.

Please refer to Figures 1 and 2. The range hood 1 of the present invention includes a body 10, an air extraction box 20, a filter 30, and an air extraction motor 50.

As shown in Figures 2 to 4, the body 10 has a top plate 11 and a peripheral wall 12 extending downward from the top plate 11. A smoke collecting chamber 13 as shown in Figure 4 is formed between the top plate 11 and the peripheral wall 12. The bottom forms a smoking port 14 that communicates with the smoke collecting chamber 13. The front side of the top plate 11 has two spaced apart first hooks 111. The rear side of the top plate 11 has two spaced apart magnets 112. The smoke chamber 13 is connected to the smoke exhaust port 15. In addition, the body 10 also has a guide plate 16. The guide plate 16 has two second hooks 161 arranged at intervals. On the one hand, the guide plate 16 has each second hook 161 respectively. Hooked on each first hook 111 of the top plate 11, and on the other hand, the guide plate 16 is attracted by the magnets 112 of the top plate 11 and is firmly installed on the smoking mouth 14, so that the guide plate 16 can be disposed in a detachable manner. At the smoking port 14, and the guide plate 16 covers part of the smoking port 14, a slit 17 as shown in Figure 3 is formed between the periphery of the guide plate 16 and the smoking port 14, and the slit 17 is used for guiding. Oil smoke flows into the smoking port 14.

Referring to FIGS. 4 and 6 , the air extraction box 20 has a smoke exhaust channel 21 and an outlet 22 connected to the smoke exhaust channel 21 . As shown in FIG. 6 , the exhaust box 20 is fixed to the bottom surface of the smoke collecting chamber 13 of the machine body 10 with an outer flange 20A, so that the smoke exhaust channel 21 of the exhaust box 20 is connected to the smoke exhaust port 15 of the machine body 10 . Moreover, a supporting member 23 is locked on the right side of the inner wall surface of the exhaust box 20, and an oil accumulation groove 24 is locked on the left side of the inner wall surface of the exhaust box 20. As shown in Figures 7 and 8, the oil accumulation groove 24 has a rectangular shape. The oil receiving portion 26 and two hooks 27 are spaced at the bottom of the oil receiving portion 26, and the oil receiving portion 26 has two penetrating oil holes 261. An oil collecting cup 28 is provided below the oil collecting groove 24. The oil collecting cup The two ends of the oil collecting cup 28 are respectively provided with a flange 29. The two flanges 29 of the oil collecting cup 28 are embedded in the hooks 27 of the oil collecting groove 24, so that the oil collecting cup 28 is detachably installed on the oil collecting groove 24. below.

Referring to Figures 9 and 10, the filter screen 30 has a fixed frame 31, a plurality of first grid bars 32 accommodated in the fixed frame 31, and a plurality of second grid bars 38 (first grid bars) accommodated in the fixed frame 31. In this embodiment, the number of the bars 32 and the second grid bars 38 is ten, but the number is not limited to ten). Each first grate 32 has a first wall 33 and two first guide portions 34 connected to two opposite sides of the first wall 33, and a gap is formed between the first wall 33 and the first guide portions 34. a first guide groove 35. Each second grate 38 has a second wall 39 and second guide portions 40 connected to two opposite sides of the second wall 39, and a gap is formed between the second wall 39 and the second guide portions 40. second guide groove 41. When the filter screen 30 is actually assembled, the first gratings 32 and the second gratings 38 are arranged in a staggered manner, and each first grating 32 faces between each second grating 38 with a first guide groove 35 . The second guide groove 41 and the first guide portions 34 of each first grid 32 are divided into They are respectively embedded in the second guide grooves 41 of two adjacent second grid bars 38, and the second guide portions 40 of each second grid bar 38 are embedded in the first portion of the two adjacent first grid bars 32. In the guide groove 35, as shown in Figure 11, a first channel C1 is formed between the first guide portions 34 of the two adjacent first gratings 32, and the two adjacent second gratings 38 are The second guide part 40 forms a second channel C2, and the adjacent first and second guide parts 34 and 40 form a third channel C3 connecting the first and second channels C1 and C2, and then use A plurality of rivets R as shown in FIG. 9 are inserted through the fixed frame 31 and the two ends of the first and second grids 32 and 38, and the filter screen 30 can be assembled. Next, as shown in FIG. 6 , the filter screen 30 is installed across the supporting member 23 and the oil receiving portion 26 of the oil reservoir 24 , so that the filter screen 30 is installed with an inclination downward from the supporting member 23 toward the oil reservoir 24 . In the smoke exhaust channel 21 of the exhaust box 20.

As shown in Figure 6, the air extraction motor 50 (only the fan of the air extraction motor 50 is schematically shown) is fixed in the smoke exhaust channel 21 of the air extraction box 20 and is located downstream of the filter 30. When the air extraction motor 50 When starting up, under the influence of the contraction effect, the oil smoke generated by cooking will accelerate through the slit 17 and enter the smoking port 14, and then flow from the smoking port 14 through the smoke collection chamber 13 and through the smoke exhaust port 15. At this time, the oil smoke is in Under the influence of the chimney effect, the smoke will quickly flow from the smoke exhaust port 15 into the smoke exhaust channel 21 of the exhaust box 20 and be discharged from the outlet 22.

As shown in FIG. 6 , furthermore, when the oil smoke flows into the smoke exhaust channel 21 through the smoke exhaust port 15 , the oil smoke will sequentially pass through the second channels C2 and C2 of the filter 30 as shown in FIG. 11 . The third channel C3, and the first channel C1, through the structural design of the first, second, and third channels C1, C2, and C3, can effectively divert the oil fume and intercept it, and then Furthermore, as shown in Figure 7, since the filter screen 30 is placed obliquely in the smoke exhaust channel 21, the oil droplets generated by the oil smoke filtered by the filter screen 30 will flow along the filter screen 30 to the support of the oil accumulation tank 24 under the action of gravity. The oil part 26 flows into the oil collecting cup 28 from the oil holes 261 for storage. When the oil collecting cup 28 is filled with oil droplets, the user only needs to remove the oil collecting cup 28 from the oil collecting tank 24 shown in Figure 8 Wait for the hook 27 to be removed before pouring out the oil drops, and then install the oil collecting cup 28 back into the oil collecting tank 24 That is to say, the filter 30 can still maintain the same filtering effect without the user replacing the filter 30 .

As shown in Figure 6, it should be added that the angle θ of the filter 30 is preferably kept between 30 degrees and 45 degrees. If the angle θ is less than 30 degrees, the fluidity of the oil droplets will be too low, causing The oil droplets accumulated on the filter screen 30 cannot slide off the filter screen 30 smoothly. If the angle θ is greater than 45 degrees, although it will help shorten the time for the oil droplets to flow on the filter screen 30, the fluidity of the oil droplets will be too high. The oil droplets drip off from the filter screen 30 too easily, and the oil droplets cannot be smoothly concentrated in the oil receiving portion 26 of the oil accumulation tank 24 .

To sum up, the range hood 1 of this invention places the filter 30 obliquely in the smoke exhaust channel 21 of the exhaust box 20, so that the oil droplets generated by the oil smoke filtered by the filter 30 can slide from the filter 30, that is, There is no need to replace the filter 30 , thereby solving the problem of consumables and reducing the cost of replacing the filter 30 .

Finally, it must be stated again that the constituent elements disclosed in the foregoing implementation of this invention are only examples and are not used to limit the scope of this case. Substitutions or changes of other equivalent elements should also be within the scope of the patent application of this case. Covered.

1: Range hood

10: Body

11: Top plate

111: First hook

12: Surrounding wall

13: Smoke collecting room

14: Smoking port

15: Smoke exhaust port

16: deflector

161: The second hook

17: slit

20:Exhaust box

21: Smoke exhaust channel

22:Export

23: Supporting parts

24: Oil tank

26: Oil receiving department

28:Oil collecting cup

30: filter

50:Extraction motor

θ: angle

Claims (7)

A range hood including: A machine body has a top plate and a peripheral wall extending downward from the top plate. A smoke collection chamber is formed between the top plate and the peripheral wall. The bottom of the peripheral wall forms a smoking port connected to the smoke collection chamber. The top plate has a A smoke exhaust port connected to the smoke collection room; An air extraction box has a smoke exhaust channel, and the air exhaust box is fixed on the machine body so that the smoke exhaust channel is connected to the smoke exhaust port; A filter, installed obliquely in the smoke exhaust channel, is used to filter the oil smoke flowing from the smoke exhaust port into the smoke exhaust channel, so that the oil droplets generated by the oil smoke filtered by the filter screen slide off the filter screen; and An air extraction motor is fixedly installed in the smoke exhaust channel of the air extraction box and is located downstream of the filter. When the air extraction motor is started, the oil smoke flows through the smoking port, through the smoke collection chamber and through the smoke exhaust mouth and flows into the smoke exhaust channel. The range hood as claimed in claim 1, wherein the filter is tilted at an angle between 30 degrees and 45 degrees. The range hood as claimed in claim 1, wherein one side of the inner wall of the exhaust box is provided with a supporting member, and the other side of the inner wall of the exhaust box is provided with an oil reservoir, and a detachable installation There is an oil collecting cup below the oil collecting tank, the oil collecting tank has an oil receiving part, and the oil receiving part has an oil hole; the filter screen is disposed across the supporting member and the oil receiving part of the oil collecting tank, The filter screen is installed in the smoke exhaust channel in a downward direction from the supporting member to the oil tank. When the oil droplets generated by the oil smoke filtered by the filter screen slide off the filter screen, the aforementioned oil droplets The oil flows into the oil receiving portion of the oil reservoir and flows into the oil collecting cup through the oil hole. The range hood according to claim 3, wherein the oil collecting tank has two hooks arranged at intervals at the bottom of the oil receiving part, and the oil collecting cup is embedded in the hooks of the oil collecting tank with two flanges. Hook, so that the oil collecting cup can be detachably installed under the oil collecting tank. The range hood as claimed in claim 1, wherein the filter screen has a fixed frame, a plurality of first grilles accommodated in the fixed frame, and a plurality of second grilles accommodated in the fixed frame, each of which The first grid has a first wall and two first guide parts connected to two opposite sides of the first wall, and a first guide groove is formed between the first wall and the first guide parts; Each second grate has a second wall and two second guide portions connected to two opposite sides of the second wall. A second guide portion is formed between the second wall and the second guide portions. grooves; the first grid bars and the second grid bars are arranged in a staggered manner, and each first grid bar faces the second guide groove of each second grid bar with the first guide groove, and each The first guide portions of the first grille are respectively embedded in the second guide grooves of the two adjacent second grilles, and the second guide portions of each second grille are respectively embedded in the adjacent second guide grooves. The first guide grooves of the two first gratings form a first channel connected to the smoke exhaust channel between two adjacent first guide parts, and two adjacent second guide parts form a connected first channel. The second channel leads to the smoke exhaust port, and a third channel connecting the first and second channels is formed between the adjacent first and second guide parts; the aforementioned oil smoke flows from the smoke exhaust port according to the Pass through the second channels, the third channels and the first channels of the filter in sequence and flow into the smoke exhaust channel. The range hood according to claim 1, wherein the body has a guide plate arranged on the smoking port, the guide plate covers a part of the smoking port and is used to guide the oil smoke to flow into the smoking port. The range hood of claim 6, wherein the front side of the top plate has two spaced apart first hooks, the rear side of the top plate has two spaced apart magnets; the guide plate has two spaced apart first hooks. Two hooks, the second hooks of the deflector are respectively hooked with the first hooks of the top plate, and the deflector is attracted by the magnets of the top plate and is arranged on the smoking port.

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