CN218943272U - Noise reduction structure of dish washer - Google Patents

Abstract

The utility model discloses a noise reduction structure of a dish washer, which is provided with a washing cavity and comprises collecting boxes, flow guide pipes and noise reduction components, wherein the collecting boxes are respectively arranged on two sides of the washing cavity, the flow guide pipes are respectively arranged on the two collecting boxes, one end of each flow guide pipe far away from each collecting box is communicated with the noise reduction component so that noise generated by working in the washing cavity sequentially enters the noise reduction components through the collecting boxes and the flow guide pipes, and noise reduction work is performed on the noise through the effect of the noise reduction components. The structure is simple, and the noise problem of the washing cavity of the dish washer can be effectively improved, so that the noise reduction performance of the product is effectively improved.

Description

Noise reduction structure of dish washer

Technical Field

The utility model relates to the technical field of kitchen electricity, in particular to a noise reduction structure of a dish washer.

Background

As home dish washers gradually move into ordinary households, user complaints caused by noise problems are more and more, so that noise reduction of the dish washers and dish washer products with low noise production are more and more appreciated by dish washer manufacturers.

Disclosure of Invention

The utility model aims to solve one of the problems existing in the related art at least to a certain extent, and therefore, the utility model provides a noise reduction structure of a dish washer, which is simple in structure and can effectively improve the noise problem of a washing cavity of the dish washer, thereby effectively improving the noise reduction performance of a product.

The above object is achieved by the following technical scheme:

the utility model provides a structure of making an uproar falls in dish washer, dish washer has the washing chamber, including collecting box, honeycomb duct and the subassembly of making an uproar falls, wherein collect the box and set up respectively on the both sides in washing chamber, two collect and be provided with respectively on the box the honeycomb duct, the honeycomb duct in keep away from collect the one end of box with the subassembly of making an uproar falls and be linked together so that the produced noise of washing intracavity work is in proper order through collect the box the honeycomb duct gets into in the subassembly of making an uproar falls, through the effect of the subassembly of making an uproar falls in order to make an uproar the noise.

In some embodiments, the noise reduction assembly includes a housing, a plurality of risers and a plurality of cross plates, wherein a hollow accommodating cavity is defined in the housing, communication ports communicated with the flow guide pipe are respectively formed in two sides of the accommodating cavity, the plurality of risers are arranged in the accommodating cavity at intervals along the transverse direction so as to divide the accommodating cavity into a plurality of cavities, the plurality of through holes are respectively formed in the risers at intervals along the vertical direction, the plurality of cross plates are alternately arranged on two adjacent risers at intervals along the vertical direction, and projections of the upper adjacent cross plates and the lower adjacent cross plates in the vertical direction are partially overlapped, fully overlapped and/or non-overlapped.

In some embodiments, when the projections of the upper and lower adjacent transverse plates in the vertical direction are partially overlapped, the length of the partial overlap is one-half, one-fourth and/or three-fourths of the length of the transverse plates.

In some embodiments, seven risers are disposed in the accommodating cavity at intervals to divide the accommodating cavity into a plurality of cavities, and the plurality of cavities are a first cavity, a second cavity, a third cavity, a fourth cavity, a fifth cavity and a sixth cavity that are sequentially connected.

In some embodiments, the projections of the upper and lower adjacent cross plates in the vertical direction in the first cavity are all overlapped, the projections of the upper and lower adjacent cross plates in the vertical direction in the second cavity are partially overlapped and the partially overlapped length is half of the length of the cross plates, the projections of the upper and lower adjacent cross plates in the vertical direction in the third cavity are partially overlapped and the partially overlapped length is a quarter of the length of the cross plates, the projections of the upper and lower adjacent cross plates in the vertical direction in the fourth cavity are partially overlapped and the partially overlapped length is three-fourths of the length of the cross plates, the projections of the upper and lower adjacent cross plates in the vertical direction in the fifth cavity are non-overlapped, and the projections of the upper and lower adjacent cross plates in the vertical direction in the sixth cavity are all overlapped.

In some embodiments, the method further comprises providing a flare disposed on the draft tube and having an area of the flare cross section that is greater than an area of the draft tube cross section.

In some embodiments, a flexible material assembly is also included, the flexible material assembly disposed within the abrupt tube and/or the draft tube.

In some embodiments, the flexible material assembly comprises a first flexible material layer, a second flexible material layer and a third flexible material layer which are arranged in the abrupt change pipe and/or the flow guide pipe, wherein the first flexible material layer, the second flexible material layer and the third flexible material layer are sequentially arranged at intervals along the direction from the collecting box to the noise reduction assembly.

In some embodiments, the thickness of the second flexible material layer is greater than the thickness of the first flexible material layer, and the thickness of the second flexible material layer is less than the thickness of the third flexible material layer.

In some embodiments, openings are respectively formed on two sides of the washing cavity, and a fourth flexible material layer is arranged at the position of the opening, the collecting box is provided with an inlet connected with the opening and a closing-in connected with the flow guide pipe, and the area of the cross section of the collecting box gradually decreases from the inlet to the closing-in direction.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

1. the noise reduction structure of the dish washer has a simple structure, and can effectively improve the noise problem of a washing cavity of the dish washer, thereby effectively improving the noise reduction performance of products.

Drawings

FIG. 1 is a schematic view of a dishwasher in accordance with an embodiment of the present utility model;

FIG. 2 is a top view of a dishwasher in an embodiment of the present utility model;

FIG. 3 is a first cross-sectional view of a dishwasher in an embodiment of the present utility model;

FIG. 4 is a second cross-sectional view of a dishwasher in an embodiment of the present utility model;

fig. 5 is a third cross-sectional view of a dishwasher in an embodiment of the present utility model.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments of the utility model, which are obtained by a person of ordinary skill in the art without making any inventive effort, shall fall within the scope of the claimed utility model.

Embodiment one:

as shown in fig. 1 to 5, the present embodiment provides a noise reduction structure of a dishwasher, the dishwasher has a washing chamber 1, including a collection box 2, a flow guide 3 and a noise reduction component 4, wherein the collection box 2 is respectively disposed on two sides of the washing chamber 1 to collect noise generated by working in the washing chamber 1, the two collection boxes 2 are respectively disposed with the flow guide 3, one ends of the two flow guide 3 far from the collection boxes 2 are respectively communicated with two ends of the noise reduction component 4, and the noise collected by the two collection boxes 2 enters the noise reduction component 4 through the corresponding flow guide 3, and the noise is reduced by the noise reduction component 4.

In this embodiment, the composite noise reduction structure is preferably applied to a dishwasher, and of course, may be applied to other household appliances such as a range hood according to actual needs, and in this embodiment, the composite noise reduction structure is described by being applied to an example on the dishwasher, and other types of household appliances are not described again. In this embodiment, the dish washer has hollow washing chamber 1, be provided with respectively symmetrically on the left and right sides of washing chamber 1 and collect box 2, be provided with honeycomb duct 3 respectively on two collection boxes 2, two honeycomb ducts 3 are being linked together with the both ends of the subassembly 4 of making an uproar respectively in the one end that is kept away from collecting box 2 so that the noise that the work produced in the washing chamber 1 gets into the subassembly of making an uproar in 4 through collecting box 2, honeycomb duct 3 in proper order, namely the noise gets into on the corresponding honeycomb duct 3 through the collection box 2 of washing chamber 1 left and right sides respectively, then make the noise get into the subassembly of making an uproar 4 respectively by the both ends of the subassembly of making an uproar 4 through honeycomb duct 3 in both sides, thereby make an uproar work of making an uproar to noise through the effect of making an uproar that makes an uproar falls in order to realize making an uproar through the vibration intensity of making an uproar that makes an uproar 4 falls the sound, its simple structure can effectively improve the noise problem of washing chamber 1 of dish washer, thereby effectively improve the noise performance of the product.

Further, the noise reduction assembly 4 includes a housing 41, a plurality of risers 42 and a plurality of cross plates 43, wherein a hollow accommodating cavity 44 is defined in the housing 41, two sides of the accommodating cavity 44 are respectively provided with a communication port 45 communicated with the flow guide pipe 3, the plurality of risers 42 are arranged in the accommodating cavity 44 at intervals along the transverse direction so as to divide a plurality of cavities in the accommodating cavity 44, the plurality of through holes are respectively arranged on the risers 42 at intervals, the plurality of cross plates 43 are arranged on two adjacent risers 42 at intervals along the vertical direction, and projections of the upper and lower two adjacent cross plates 43 in the vertical direction are partially overlapped, completely overlapped and/or non-overlapped.

Preferably, when the projections of the upper and lower adjacent cross plates 43 in the vertical direction are partially overlapped, the partially overlapped length is one half, one quarter and/or three quarters of the length of the cross plate 43, which is reasonable and smart in design, and can further improve the noise reduction effect.

Specifically, seven risers 42 are disposed in the accommodating cavity 44 at intervals to divide a plurality of cavities in the accommodating cavity 44, and the plurality of cavities are a first cavity 51, a second cavity 52, a third cavity 53, a fourth cavity 54, a fifth cavity 55 and a sixth cavity 56 which are sequentially connected, so that the structure is simple and compact.

Further, the projections of the upper and lower adjacent cross plates 43 in the first cavity 51 in the vertical direction are all overlapped, the projections of the upper and lower adjacent cross plates 43 in the second cavity 52 in the vertical direction are partially overlapped and the partially overlapped length is half of the length of the cross plates 43, the projections of the upper and lower adjacent cross plates 43 in the third cavity 53 in the vertical direction are partially overlapped and the partially overlapped length is one fourth of the length of the cross plates 43, the projections of the upper and lower adjacent cross plates 43 in the fourth cavity 54 in the vertical direction are partially overlapped and the partially overlapped length is three-fourths of the length of the cross plates 43, the projections of the upper and lower adjacent cross plates 43 in the fifth cavity 55 in the vertical direction are not overlapped, the projections of the upper and lower adjacent cross plates 43 in the vertical direction are all overlapped, the structure is simple, the design is reasonable, and sound waves entering the accommodating cavity 44 from left to right can generate different phase differences when meeting, so that the vibration intensity of sound is reduced, and the purpose of noise reduction is achieved.

In this embodiment, the wavefront at the next time is the envelope generated when each point on the wavefront at the current time acts as a wave source according to the huygens principle. Thus, the acoustic wave phase gradient at the interface is changed by the noise reduction component 4 which is a super-surface structure, so that the wavefront of the diffuse sound field can be modulated. In this embodiment, the noise reduction component 4 is in a super-surface structure, a hollow accommodating cavity 44 is defined in the housing 41, communication ports 45 which are communicated with the flow guide pipes 3 are respectively formed at two sides of the accommodating cavity 44, so that noise entering the collecting boxes 2 at two sides of the washing cavity 1 is guided to the accommodating cavity 44 through the corresponding flow guide pipes 3 respectively through the communication ports 45 at two sides of the accommodating cavity 44, a plurality of vertical plates 42 are arranged in the accommodating cavity 44 at intervals along the transverse direction to divide a plurality of independent cavities in the accommodating cavity 44 at intervals along the transverse direction, a plurality of rows of through hole groups are arranged on the vertical plates 42 at intervals along the vertical direction, each row of through hole group comprises at least 3 through holes, the through holes can be round, square and/or triangular, noise sound waves are transmitted into the accommodating cavity 44 through the through holes on the vertical plates 42, and are propagated in the plurality of cavities through the through holes, so that the noise can enter the plurality of cavities more uniformly.

In this embodiment, a plurality of cross plates 43 are alternately arranged on two adjacent cross plates 42 along the vertical direction, that is, a plurality of cross plates 43 are alternately arranged on the corresponding cross plates 42 in each cavity, a partition layer is formed between the upper and lower adjacent cross plates 43, preferably, the lengths of the upper and lower adjacent cross plates 43 are identical, and the connection between the cross plates 43 and the cross plates 42 is at a position between two adjacent rows of through hole groups, so that the partition layer between the upper and lower adjacent cross plates 43 is communicated with the outside through a corresponding row of through hole groups. In addition, the projections of the upper and lower adjacent transverse plates 43 in the vertical direction are partially overlapped, completely overlapped and/or non-overlapped, namely, the fixed end of the upper transverse plate 43 in the upper and lower adjacent transverse plates 43 is connected with the vertical plate 42 at the left side of the cavity, the free end of the upper transverse plate 43 is arranged in a left-to-right extending manner, the fixed end of the lower transverse plate 43 is connected with the vertical plate 42 at the right side of the cavity, the free end of the lower transverse plate 43 is arranged in a left-to-right extending manner, the projections of the free end of the upper transverse plate 43 and the free end of the lower transverse plate 43 in the vertical direction are partially overlapped, completely overlapped and/or non-overlapped, and when the projections of the upper and lower adjacent transverse plates 43 in the vertical direction are partially overlapped, the partially overlapped length is one half, one quarter and/or three quarters of the length of the transverse plate 43; when the projections of the upper and lower adjacent cross plates 43 in the vertical direction are all overlapped, the length of the all overlapped is the length of the cross plate 43; when the projections of the upper and lower adjacent cross plates 43 in the vertical direction are non-overlapping, the non-overlapping length is zero. In this embodiment, noise sound waves enter the accommodating cavity 44 through the communication ports 45 on two sides of the accommodating cavity 44, so that noise propagates from the left side of the accommodating cavity 44 to the right side of the accommodating cavity 44 and simultaneously propagates from the right side of the accommodating cavity 44 to the left side, and different phase differences can be generated when sound waves propagating from left to right and sound waves propagating from right to left meet in each cavity through the transverse plates 43 arranged at intervals between the upper and lower sides, so that the vibration intensity of sound is reduced, and noise generated by dish washing machine operation is effectively reduced.

Further, the device further comprises a sudden change pipe 6, the sudden change pipe 6 is arranged on the flow guide pipe 3, the area of the cross section of the sudden change pipe 6 is larger than that of the cross section of the flow guide pipe 3, the device is simple in structure and reasonable in design, and the resistance of a sound channel can be increased, so that resistance silencing is realized.

Preferably, the noise reduction device further comprises a flexible material assembly 7, wherein the flexible material assembly 7 is arranged in the abrupt change pipe 6 and/or the flow guide pipe 3, the design is reasonable, and the noise reduction device can effectively perform primary noise reduction on collected noise.

Specifically, the flexible material assembly 7 includes a first flexible material layer 71, a second flexible material layer 72 and a third flexible material layer 73 disposed in the abrupt tube 6 and/or the flow guiding tube 3, where the first flexible material layer 71, the second flexible material layer 72 and the third flexible material layer 73 are sequentially disposed at intervals along the direction from the collecting box 2 to the noise reduction assembly 4, and the structure is simple, so that the noise reduction effect of the product can be further improved.

Preferably, the thickness of the second flexible material layer 72 is greater than the thickness of the first flexible material layer 71, and the thickness of the second flexible material layer 72 is less than the thickness of the third flexible material layer 73, which is reasonable in design and can effectively absorb noise in different frequency bands.

In particular, the openings 11 are respectively formed on two sides of the washing chamber 1, and the fourth flexible material layer is arranged at the position of the openings 11, the collecting box 2 is provided with an inlet connected with the openings 11 and a closing-in connected with the flow guide pipe 3, the area of the cross section of the collecting box 2 is gradually reduced from the inlet to the closing-in direction, and noise in the washing chamber 1 can be effectively collected.

In this embodiment, the openings 11 are respectively formed on two sides of the washing cavity 1, meanwhile, a fourth flexible material layer is attached to the position of the opening 11, the area of the cross section of the collection box 2 is preferably ultrathin flexible material, due to the isolation of the film, no fluid flows in the sound channel, only sound is transmitted, so that gas and liquid can be prevented from flowing into the noise reduction assembly 4, the collecting box 2 is arranged at the position of the opening 11 at the position of the opening, the inlet of the collecting box 2 is correspondingly arranged with the opening 11 so that the washing cavity 1 is communicated with the collecting box 2, the closing opening of the collecting box 2 is connected with the guide pipe 3 so that the collecting box 2 is communicated with the guide pipe 3, and in order to facilitate the outward diversion of noise in the washing cavity 1, the cross section area of the collecting box 2 is gradually reduced from the inlet to the closing opening, so that the collecting box 2 is in the shape of a horn mouth, and the noise generated during the operation in the dish washer is propagated through the horn mouth, the sound gathering effect is generated, the sound density is effectively enhanced, the abrupt change pipe 6 is arranged on the guide pipe 3, the area of the cross section of the abrupt change pipe 6 is larger than the cross section 3, when the abrupt change pipe 6 and the guide pipe 3 is preferably the guide pipe 3 is the pipe 3, the noise is greatly reflected by the pipe 6, the noise is greatly reflected in the noise is prevented from the noise absorption pipe is further being propagated in the noise absorption process.

In this embodiment, the first flexible material layer 71 is preferably disposed at a position close to one end of the collecting box 2 of the abrupt tube 6, and the first flexible material layer 71, the second flexible material layer 72 and the third flexible material layer 73 are sequentially disposed at intervals in the abrupt tube 6 along the direction from the collecting box 2 to the noise reduction component 4, and the thicknesses of the three flexible material layers are preferably 10 μm to 2000 μm, so that the thicknesses of the second flexible material layer 72 are greater than the thicknesses of the first flexible material layer 71 by damping and silencing effects of the materials, and the number of layers of the flexible material component 7 in this embodiment is not limited to three, but can be two or four, and other flexible material layers with more suitable numbers can be selected according to practical requirements, meanwhile, the flexible material layers can be made of flame retardant films, flame retardant papers, artificial leather and the like, and other more suitable materials can be selected according to practical requirements, and the thickness range of the flexible material layers is preferably made of ultrathin flexible materials, and in order to further improve the noise reduction effect, the thickness of the second flexible material layer 72 is preferably 10 μm to 2000 μm, and the thickness of the second flexible material layer 72 is greater than the thickness of the first flexible material layer 71, and the thickness of the flexible material layer 72 is gradually reduced to 500Hz to 700Hz along the direction from the third flexible material layer of the flexible material layer 2 to 700Hz, and the thickness of the flexible material layer is 500Hz to the third flexible material layer is more than the 500Hz, and the flexible material layer is more 500Hz, and the thickness of the flexible material layer is more 500Hz is more; the thickness of the second flexible material layer 72 is 100-500 μm, and the second flexible material layer can resonate with the noise with the frequency range of 300-500 Hz, thereby reducing the noise with the frequency range of 300-500 Hz; the third flexible material layer 73 has a thickness of 500 μm to 2000 μm and resonates with noise of 150Hz to 300Hz in a frequency band, thereby achieving reduction of noise of 150Hz to 300 Hz. The sound absorption mechanism of the flexible material in this embodiment is mainly internal damping loss when the film is integrally vibrated, so that the sound absorption mechanism can be approximately regarded as a simple mass-spring system, the sound absorption coefficient is very low at high frequency, the resonance frequency is usually between 200 and 1000Hz, the maximum sound absorption coefficient is 0.3 to 0.4, and in addition, the flexible material layer has a certain prestress when being installed and fixed, so that a better noise reduction effect is achieved.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The utility model provides a structure of making an uproar falls in dish washer, dish washer has washing chamber (1), a serial communication port, including collecting box (2), honeycomb duct (3) and fall subassembly (4) of making an uproar, wherein collect box (2) set up respectively on the both sides in washing chamber (1) with collect the produced noise of washing intracavity (1), two be provided with respectively on collecting box (2) honeycomb duct (3), two honeycomb duct (3) in keep away from collect box (2) one end respectively with fall the both ends of subassembly (4) of making an uproar and be linked together, two the noise that collecting box (2) collected gets into through corresponding honeycomb duct (3) fall in subassembly (4) of making an uproar, through the effect of subassembly (4) of making an uproar is fallen in order to make an uproar the noise.

2. The noise reduction structure of a dishwasher according to claim 1, wherein the noise reduction assembly (4) comprises a housing (41), a plurality of risers (42) and a plurality of cross plates (43), wherein a hollow accommodating cavity (44) is defined in the housing (41), communication ports (45) communicated with the flow guide pipe (3) are respectively formed in two sides of the accommodating cavity (44), the plurality of risers (42) are arranged in the accommodating cavity (44) at intervals along the transverse direction so as to divide the accommodating cavity (44) into a plurality of cavities, a plurality of through holes are respectively formed in the risers (42) at intervals, the plurality of cross plates (43) are arranged on two adjacent risers (42) at intervals along the vertical direction, and projections of the upper adjacent cross plates (43) and the lower adjacent cross plates (43) in the vertical direction are partially overlapped, fully overlapped and/or non-overlapped.

3. A noise reducing structure of a dishwasher according to claim 2, characterized in that when the projections of two adjacent cross plates (43) in the vertical direction are partially overlapping, the length of the partial overlap is one-half, one-quarter and/or three-quarters of the length of the cross plate (43).

4. A noise reducing structure of a dishwasher according to claim 3, characterized in that seven risers (42) are arranged in the accommodating cavity (44) at intervals to divide a plurality of cavities in the accommodating cavity (44), the plurality of cavities being a first cavity (51), a second cavity (52), a third cavity (53), a fourth cavity (54), a fifth cavity (55) and a sixth cavity (56) which are connected in sequence.

5. The noise reduction structure of a dishwasher according to claim 4, wherein projections of upper and lower adjacent cross plates (43) in the first cavity (51) are all overlapped, projections of upper and lower adjacent cross plates (43) in the second cavity (52) are partially overlapped and have a partially overlapped length of half the length of the cross plates (43), projections of upper and lower adjacent cross plates (43) in the third cavity (53) are partially overlapped and have a partially overlapped length of a quarter of the length of the cross plates (43), projections of upper and lower adjacent cross plates (43) in the fourth cavity (54) are partially overlapped and have a partially overlapped length of three-quarters of the length of the cross plates (43), projections of upper and lower adjacent cross plates (43) in the vertical direction are non-overlapped, and projections of upper and lower adjacent cross plates (43) in the sixth cavity (56) are all overlapped in the vertical direction.

6. The noise reduction structure of a dishwasher according to claim 1, further comprising a sudden change pipe (6), the sudden change pipe (6) being provided on the flow guide pipe (3), and the area of the cross section of the sudden change pipe (6) being larger than the area of the cross section of the flow guide pipe (3).

7. A noise reducing structure of a dishwasher according to claim 6, further comprising a flexible material assembly (7), said flexible material assembly (7) being arranged within said abrupt tube (6) and/or said draft tube (3).

8. The noise reduction structure of a dishwasher according to claim 7, characterized in that the flexible material assembly (7) comprises a first flexible material layer (71), a second flexible material layer (72) and a third flexible material layer (73) arranged in the abrupt change pipe (6) and/or the flow guide pipe (3), wherein the first flexible material layer (71), the second flexible material layer (72) and the third flexible material layer (73) are sequentially arranged at intervals along the direction from the collecting box (2) to the noise reduction assembly (4).

9. A noise reducing structure of a dishwasher according to claim 8, characterized in that the thickness of the second flexible material layer (72) is greater than the thickness of the first flexible material layer (71), and the thickness of the second flexible material layer (72) is less than the thickness of the third flexible material layer (73).

10. The noise reduction structure of a dishwasher according to any one of claims 1 to 9, characterized in that openings (11) are provided on both sides of the washing chamber (1) and a fourth flexible material layer is provided at the position of the openings (11), the collecting box (2) has an inlet connected with the openings (11) and a closing-in connected with the flow guide tube (3), and the area of the cross section of the collecting box (2) gradually decreases from the inlet to the closing-in direction.

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