TWI570363B - For the hood of the noise diversion structure - Google Patents

Description

Sound-insulating structure for exhaust hood

The invention relates to a range hood, in particular to a sound-insulating diversion structure for a range hood.

Generally, the range hoods are provided with a filter oil net, which is mainly used for intercepting the soot generated by the vaporization during the cooking process, so that the soot is intercepted by the oil filter net and then concentrated into the drip bowl disposed under the oil filter net.

However, the oil filter net is usually only a thin mesh, so that the interception effect on the soot is quite limited, so the soot can easily form difficult oil stains inside the range hood through the oil filter net, and may even directly discharge In the air, causing air pollution in the surrounding environment, in addition, the traditional oil filter net can not effectively block the noise generated by the fan or motor during operation, and may cause a certain degree of hearing to the user under prolonged use. Impact.

The main object of the present invention is to provide a sound-insulating flow guiding structure for a range hood, which can effectively improve the intercepting efficiency of the soot and at the same time has a soundproof function.

In order to achieve the foregoing object, the acoustic flow guiding structure of the present invention comprises two fixing seats, a plurality of first deflectors, and a plurality of second baffles. The two fixing bases are disposed in a mirror-symmetrical manner and have a plurality of first slots and a plurality of second slots respectively; the first deflectors are disposed in a side-by-side manner and have two first plug portions, each of the first The plug portion is detachably inserted into the first seat of the fixing base In the slot, the second baffles are disposed in a side-by-side manner and each has a second plug portion, and each of the second plug portions is detachably inserted into the second slot of the mount. Each of the first baffles has two opposite first flow guiding portions and a first guiding flow channel between the two first flow guiding portions, and each of the second baffles has two opposite second guiding currents. And a second guiding groove between the two second guiding portions, wherein the first guiding portion of each of the first baffles extends into the second guiding of the adjacent two second guiding plates In the flow channel, the notch of the first flow guiding groove of each of the first baffles faces the second baffles, and the second flow guiding portion of each of the second baffles extends into the adjacent two of the first The notch of the second guiding groove of each of the second baffles faces the first baffles in the first guiding groove of the deflector.

Preferably, each of the fixing seats has a plurality of first elastic pieces, and the first elastic pieces respectively correspond to a first positioning slot and respectively have a first positioning convex portion, and the first insertion portion of each of the first baffles The first positioning groove is engaged with the first positioning protrusion for increasing the assembly strength between the two fixing bases and the first baffles, and each of the fixing seats has a majority The second elastic piece has a second positioning protrusion corresponding to the second slot, and the second insertion part of each of the second deflector has a second positioning slot, the second positioning The slot is engaged with the second positioning protrusion to increase the assembly strength between the two fixing bases and the second deflector.

Preferably, each of the fixing seats has a plurality of first slots, and each of the first slots corresponds to the first positioning protrusions for conveniently releasing the card between the first positioning slot and the first positioning protrusion. Each of the fixing seats has a plurality of second slots, and each of the second slots corresponds to the second positioning protrusions for facilitating the release of the second positioning slot and the second positioning protrusion. relationship.

Preferably, the first slot of each of the fixing bases has an inlet end, and the diameter of each of the inlet ends is gradually increased from the inside to the outside to facilitate passage of the first insertion portions of the first deflector. The second slot of the fixed seat has an inlet end, and the diameter of each of the inlet ends is gradually increased from the inside to the outside to facilitate the passage of the second plug portion of each of the second deflectors.

Preferably, the two fixing seats are placed in a support frame to improve the structural stability of the overall structure.

"First Embodiment"

10‧‧‧Acoustic diversion structure

12‧‧‧Exhaust hood

14‧‧‧ oil storage container

20‧‧‧ Fixed seat

21‧‧‧ top wall

212‧‧‧The first section

214‧‧‧First shrapnel

22‧‧‧ bottom wall

221‧‧‧Second section

223‧‧‧Second shrapnel

23‧‧‧ side wall

24‧‧‧First slot

242‧‧‧ entrance end

25‧‧‧First positioning projection

26‧‧‧First slotting

27‧‧‧second slot

272‧‧‧ entrance end

28‧‧‧Second positioning convex

29‧‧‧Second slotting

30‧‧‧First baffle

31‧‧‧First Drainage Department

32‧‧‧First rectangular wall

33‧‧‧First guide trough

34‧‧‧ notch

35‧‧‧First plug-in

36‧‧‧First positioning slot

37‧‧‧First curved wall

40‧‧‧Second deflector

41‧‧‧Second diversion

42‧‧‧Second rectangular wall

43‧‧‧Second guide channel

44‧‧‧ notch

45‧‧‧Second plug-in

46‧‧‧Second positioning slot

47‧‧‧Second curved wall

50‧‧‧Support frame

C1‧‧‧ first channel

C2‧‧‧second channel

C3‧‧‧ third channel

"Second embodiment"

60‧‧‧First deflector

62‧‧‧First Drainage Department

64‧‧‧First curved wall

70‧‧‧Second deflector

72‧‧‧Second diversion department

74‧‧‧Second curved wall

"Third embodiment"

80‧‧‧ fixed seat

82‧‧‧ first body

822‧‧‧ binding column

84‧‧‧Second body

842‧‧‧bond hole

Fig. 1 is a schematic view showing the first embodiment of the present invention installed in an exhaust hood.

Fig. 2 is a perspective view showing a first embodiment of the present invention.

Fig. 3 is a partially exploded perspective view showing the first embodiment of the present invention.

Fig. 4 is a partial perspective sectional view showing the fixing base of the first embodiment of the present invention.

Fig. 5 is a partial side cross-sectional view showing the first embodiment of the present invention, mainly showing the state before the assembly of the first and second deflectors.

Figure 6 is similar to Figure 5 and mainly shows the assembly process of the first and second deflectors.

Fig. 7 is similar to Fig. 6, and mainly shows the state of the first and second deflectors after assembly.

Figure 8 is a sectional view showing the combination of the first embodiment of the present invention.

Fig. 9 is a perspective view showing the use of the support frame in the first embodiment of the present invention.

Fig. 10 is a schematic view showing the structure of the first embodiment of the present invention, mainly showing the state of the flow of soot.

Figure 11 is similar to Figure 10 and mainly shows the state of sound wave transmission.

Fig. 12 is another partial side sectional view showing the first embodiment of the present invention.

Figure 13 is a partially exploded perspective view showing a second embodiment of the present invention.

Figure 14 is a partially exploded perspective view showing a third embodiment of the present invention.

Referring to Figures 1 and 2, the acoustical flow guiding structure 10 of the present invention is mainly installed in a row of hoods 12 in an inclined manner, and includes two fixing bases 20, a plurality of first deflectors 30, and a plurality of second guides. Flow plate 40.

Each of the fixing bases 20 is disposed in a mirror symmetrical manner and has a top wall 21, a bottom wall 22, and a side wall 23 connecting the top and bottom walls 21, 22. As shown in FIGS. 3 and 4, the top wall 21 has a plurality of first grooving grooves 212, and a first elastic piece 214 is formed by each of the first sipe grooves 212. The top surface of each of the first elastic pieces 214 has a first positioning convex portion. 25, the top wall 21 has a plurality of first slots 24, the positions of the first slots 24 and the first elastic pieces 214 correspond to each other, and each of the first slots 24 has an inlet end 242, the inlet end The groove diameter of 242 gradually increases from the inside to the outside (that is, gradually increases away from the first positioning convex portion 25), as shown in FIG. 5, and further, the top surface of the top wall 21 has a plurality of first slots 26, A slot 26 and the first positioning protrusion 25 correspond to each other. The bottom wall 22 has a plurality of second cutting grooves 221, and a second elastic piece 223 is formed by each of the second cutting grooves 221, and the top surface of each of the second elastic pieces 223 has a second positioning convex portion 28, and the bottom wall 22 has a plurality of second portions. The slots 27, the positions between the second slots 27 and the second elastic pieces 223 correspond to each other, and each of the second slots 27 has an inlet end 272, and the diameter of the inlet end 272 gradually increases from the inside to the outside. (ie, gradually increasing in a direction away from the second positioning convex portion 28), as shown in FIG. 5, further, the bottom surface of the bottom wall 22 has a plurality of second slits 29, a second slit 29 and a second positioning convex portion. 28 corresponds to each other

Each of the first baffles 30 has two opposite first guiding portions 31. The two first guiding portions 31 are connected together by a first rectangular wall 32, so that the two first guiding portions 31 are A first guide groove 33 is formed therebetween, and the first guide groove 33 has a notch 34 with respect to the first rectangular wall 32, as shown in FIG. In addition, a first insertion portion 35 is protruded from the two ends of the first rectangular wall 32, and each of the first insertion portions 35 has a first positioning groove 36.

Each of the second baffles 40 has two opposite second guiding portions 41. The two second guiding portions 41 are connected together by a second rectangular wall 42 such that the two second guiding portions 41 are A second guiding groove 43 is formed between the second guiding groove 43 and a notch 44 with respect to the second rectangular wall 42. In addition, a second insertion portion 45 is protruded from the two ends of the second rectangular wall 42 , and each of the second insertion portions 45 has a second positioning groove 46 .

During assembly, as shown in FIGS. 5-7, the first plug portion 35 of the first baffle 30 and the second plug portion 45 of the second baffle 40 are respectively inserted into the fixed seat 20 1. In the second slot 24, 27, during the insertion process, the first surface of the first slot 24 is tapered and the tapered end of the second end 27 is tapered. The first plug portion 35 of the deflector 30 and the second plug portion 45 of the second deflector 40 can be quickly and accurately inserted, and then the first plug portion 35 of the first deflector 30 pushes The first positioning protrusion 25 of the first elastic piece 212 of the top fixing base 20 forces the first elastic piece 212 to elastically deform, and the second insertion part 45 of the second air guiding plate 40 also pushes the second fixing seat 20 The second positioning protrusion 28 of the elastic piece 223 forces the second elastic piece 223 to elastically deform until the first positioning of the first insertion portion 35 of the first deflector 30 The second positioning groove 46 of the second insertion portion 45 of the slot 36 and the second deflector 40 is elastically engaged with the first positioning protrusion 25 of the first elastic piece 212 of the fixing base 20 and the second elastic piece of the fixing base 20 The assembly of the second positioning projection 28 of 223 is completed.

However, in order to increase the stability of the overall structure, the two fixing bases 20 can be put together in a supporting frame 50. As shown in FIG. 9, the supporting frame 50 helps the two fixing bases 20 to be used for the first and second parts. The deflectors 30, 40 provide a support effect.

After the assembly is completed, as shown in FIG. 8, the notch 34 of the first guiding groove 33 of the first baffle 30 faces the second deflector 40, and the second diversion of the second baffle 40 The notch 44 of the slot 43 faces the first baffles 30, and the first baffle 31 of the first baffle 30 extends into the second baffle 43 of the adjacent two second baffles 40. The second flow guiding portion 41 of each of the second baffles 40 extends into the first guiding grooves 33 of the adjacent two first baffles 30. In addition, the first rectangular wall 32 of each first baffle 30 and the second rectangular wall 42 of each second baffle 40 are parallel to each other, and the first guide of each first baffle 30 The flow portion 31 and the second flow guiding portion 41 of each of the second deflectors 40 are parallel to each other. Therefore, as shown in FIGS. 10 and 11, a first channel C1 is formed between the first flow guiding portions 31 of the adjacent two first deflectors 30, and the second two adjacent baffles are formed. A second channel C2 is formed between the two flow guiding portions 41. The first guiding portion 31 and the second guiding portions 41 form a connection between the first and second channels C1 and C2. Third channel C3.

When the fan (not shown) of the range hood 12 starts to operate, the soot generated during the cooking process can be sucked into the fan through the second passage C2, the third passage C3 and the first passage C1 in sequence, as in the first Figure 9 shows the The labyrinth design of the roads C1~C3 enables the first and second deflectors 30, 40 to effectively divert and intercept the soot to achieve the purpose of purification during the flow of the soot, as to be intercepted. After the accumulated oil droplets are accumulated, the soot flows along the first and second baffles 30, 40 into an oil storage container 14 for storage, as shown in FIG.

On the other hand, the sound waves generated by the fan of the range hood 12 are sequentially released to the outside of the range hood 12 through the first passage C1, the third passage C3 and the second passage C2, as shown in FIG. It is also shown that the labyrinth design of the channels C1~C3 enables the reflection between the first and second baffles 30 and 40 to be gradually reduced during the sound wave transmission to gradually reduce the energy to achieve the sound insulation effect. .

It can be seen from the above that the shape design and arrangement of the first and second baffles 30 and 40 can not only increase the distance and time of the passage of the soot, but also improve the effect of intercepting the soot and effectively reduce the pollution of the fan and the motor by the oil smoke. At the same time, it also helps to block most of the volume generated by the fan and motor during operation, so that the user's hearing is not subject to too much noise, and in order to further improve the interception effect and sound insulation effect, As shown in Fig. 12, the sound-insulating flow guiding structure 10 of the present invention can be stacked in two or more sets to increase the transmission distance of soot and sound waves. In addition, the first and second baffles 30 and 40 are detachably disposed on the fixing base 20. For the first baffle 30, as shown in FIGS. 6 and 7, the user only needs to The finger is inserted into the first slot 24 through the first slot 26 to release the latching relationship between the first positioning slot 36 of the first baffle 30 and the first positioning protrusion 25 of the fixing seat. The first baffle 30 is removed for cleaning, and the second baffle The disassembly method of 40 is the same, and will not be repeated here.

Finally, it should be additionally noted that the structures of the first and second baffles may have different changes. As shown in FIG. 13, the first baffles 60 of the first baffle 60 are between The first curved wall 64 is connected together. Similarly, the two second flow guiding portions 72 of the second deflector 70 are separated from each other by a second arc symmetrical with the first curved wall 64. The shaped walls 74 are joined together, and such a shape design can achieve the same effects as described above. As shown in FIG. 14, the structure of the fixing base 80 can also be changed. In detail, the fixing base 80 has a first seat body 82 and a second seat body 84. The bottom surface of the first seat body 82 has a bottom surface. a plurality of spaced-apart binding posts 822. The top surface of the second block 84 has a plurality of spaced-apart coupling holes 842. When assembling the first and second deflectors 30, 40, first The first and second baffles 30 and 40 are respectively fixed to the first and second bases 82 and 84 according to the foregoing description, and then combined with the second base 84 by the coupling post 822 of the first base 82. The assembly of the fixing base 80 is completed by the holes 842, and finally assembled in the support frame 50, so that the assembly convenience can be greatly improved.

20‧‧‧ Fixed seat

21‧‧‧ top wall

22‧‧‧ bottom wall

23‧‧‧ side wall

24‧‧‧First slot

25‧‧‧First positioning projection

26‧‧‧First slotting

27‧‧‧second slot

30‧‧‧First baffle

31‧‧‧First Drainage Department

32‧‧‧First rectangular wall

33‧‧‧First guide trough

35‧‧‧First plug-in

36‧‧‧First positioning slot

40‧‧‧Second deflector

41‧‧‧Second diversion

42‧‧‧Second rectangular wall

43‧‧‧Second guide channel

45‧‧‧Second plug-in

46‧‧‧Second positioning slot

Claims (10)

The utility model relates to a sound-insulating flow guiding structure for a range hood, comprising: two mirror-symmetrical symmetrical fixing seats, each of the fixing seats has a top wall, a bottom wall, and a side wall connecting the top and bottom walls, respectively The top wall has a plurality of first slots, each of the bottom walls has a plurality of second slots; a plurality of first deflectors are arranged side by side, and each of the first deflectors has a first plug portion Each of the first baffles is detachably inserted into the first slot of the two fixing bases by the two first plugging portions, and each of the first baffles has two opposite first guiding flows. And a first flow guiding groove between the two first flow guiding portions, each of the first guiding flow grooves has a notch; and a plurality of second guiding plates arranged side by side, each of the second guiding currents Each of the two ends of the two detachable portions is detachably inserted into the second slot of the two fixing bases. The second deflector has two opposite second flow guiding portions and a second guiding flow groove between the two second guiding portions, each of the second guiding grooves has a notch; The notch of the first guiding groove of each of the first baffles faces the second deflector, and the notch of the second guiding trough of each of the second baffles faces the first diversion a first flow guiding portion of each of the first baffles extends into a second guiding groove of the adjacent second baffles, and a second guiding portion of each of the second baffles extends into the phase The two first guide plates of the first baffle are adjacent to each other; wherein each of the fixed seats has a plurality of first elastic pieces and a plurality of second elastic pieces, and the first elastic pieces respectively correspond to the first slot and respectively have a first a positioning protrusion, the second elastic pieces respectively corresponding to a second slot and respectively having a second positioning protrusion, the first insertion portion of each of the first baffles has a first positioning groove, the first positioning groove is engaged with the first positioning protrusion, and each of the second baffles The second insertion portion has a second positioning groove, and the second positioning groove is engaged with the second positioning protrusion. The sound-insulating structure for a range hood according to claim 1, wherein each of the fixing seats has a plurality of first slots and a plurality of second slots, each of the first slots corresponding to the first positioning protrusion Each of the second slots corresponds to the second positioning protrusion. The sound-insulating structure for a range hood according to claim 1, wherein the first and second slots of each of the fixing seats respectively have an inlet end, and the diameter of each of the inlet ends gradually increases from the inside to the outside. The sound-insulating structure for a range hood according to claim 1, wherein the two fixing seats are collectively placed in a support frame. The sound-insulating flow guiding structure for a range hood according to claim 1, wherein the first flow guiding portion of each of the first baffles and the second flow guiding portion of each of the second baffles are parallel to each other . The sound-insulating flow guiding structure for a range hood according to claim 5, wherein the two first flow guiding portions of each of the first deflectors are connected by a first rectangular wall, each of the first Extending from each of the two ends of a rectangular wall to the first insertion portion, the two second flow guiding portions of each of the second baffles are connected together by a second rectangular wall, each of the second The two ends of the rectangular wall extend outwardly from the second plug portion. The acoustical flow guiding structure for a range hood according to claim 6, wherein each of the first and second rectangular walls are parallel to each other. The sound-insulating flow guiding structure for an exhaust hood according to claim 1, wherein the two first flow guiding portions of each of the first baffles are connected by a first curved wall, each The two ends of the first curved wall extend outwardly from the first insertion portion, and the two second flow guiding portions of each of the second baffles are connected by a second curved wall. The two ends of each of the second curved walls extend outwardly from the second plug portion. The sound-insulating structure for a range hood according to claim 8, wherein each of the first and second curved walls is symmetrical with each other. The sound-insulating structure for a range hood according to claim 1, wherein each of the fixing bases has a first seat body and a second seat body, the first seat body having the first slots and the plurality of seats The second base has a plurality of coupling holes, and the plurality of coupling holes of the first base are respectively inserted into the coupling holes of the second base.