CN213901183U

CN213901183U - Noise reduction device and range hood applying same

Info

Publication number: CN213901183U
Application number: CN202021968583.4U
Authority: CN
Inventors: 韩君庆; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-08-06
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a noise reduction device and a range hood applying the same, the noise reduction device comprises a range hood bellows shell and is characterized in that a plurality of through holes are arranged on at least one side of the range hood bellows shell, a sound channel shell communicated with the space of the through holes is arranged on the range hood bellows shell, at least one noise reduction layer is arranged between the sound channel shell and the through holes, a sound outlet is arranged at the top of the sound channel shell, a sound guide baffle plate which can guide the sound wave transmitted from the sound outlet to the rear is arranged on the sound channel shell, the noise in the range hood passes through the noise reduction layer to enter the sound channel shell through the through holes, the noise is reduced through the internal damping loss of the noise reduction layer, the noise which is not absorbed by the noise reduction layer is transmitted into the sound channel shell, and overflows through the sound outlet at the top of the sound channel shell, and the sound wave guide is guided to the rear through the sound guide baffle plate, reduce the noise feeling of people standing in front of the range hood, and play a good role in noise reduction.

Description

Noise reduction device and range hood applying same

Technical Field

The utility model relates to a kitchen appliance technical field, in particular to noise reduction device and use its range hood.

Background

The range hood has become one of indispensable kitchen household electrical appliances in modern families, and air volume, wind pressure and noise are the core indexes of the range hood.

In recent years, the domestic cigarette machine market mainly pushes the concepts of large air volume and large suction all the time, and along with the gradual improvement of the air volume, the noise generated by the range hood is also larger and larger. When the range hood is opened during cooking, the voice, the telephone sound, the doorbell sound and the child sound can not be heard, even the strong noise can cause the adverse reactions of dysphoria, headache, palpitation and the like of housewives and kitchen operators, and the long-term use can cause serious influence on the physical and mental health. Therefore, the noise becomes the technical problem to be solved urgently in the existing range hood. Along with the improvement of the requirements of people on the living quality, users pay more and more attention to the noise parameters of the range hood when purchasing the range hood. The quality of the noise performance of the cigarette making machine can be said to be a big key factor of the product competitiveness.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model provides a noise reduction device and use its range hood.

The utility model provides a device of making an uproar falls, includes cigarette machine bellows shell, its characterized in that is equipped with a plurality of through-holes on one side of cigarette machine bellows shell be equipped with on the cigarette machine bellows shell with the sound channel casing of the space intercommunication of through-hole, the sound channel casing with it makes an uproar the layer to fall to be equipped with the one deck at least between the through-hole the top of sound channel casing is equipped with the phonate hole be equipped with on the sound channel casing and can follow the sound wave guide that phonate hole department spreads out is to the sound direction baffle of rear.

Furthermore, the noise reduction layer is made of an ultrathin flexible material, and the ultrathin flexible material covers the through hole.

Further, the thickness of the ultrathin flexible material is 10-100 μm.

Further, the sound guide partition plate is disposed on the sound channel housing in front of the sound outlet hole.

Further, the sound guide partition plate is an arc-shaped plate, and the arc-shaped direction of the sound guide partition plate faces the rear.

Further, the aperture of the through hole is larger than 2 mm.

A range hood comprises the noise reduction device.

Compared with the prior art, the utility model discloses an at least including following beneficial effect:

the utility model discloses a be equipped with the through-hole and make the inside noise of range hood pass and fall the noise floor and get into in the sound channel casing, the interior damping loss through falling the noise floor comes the noise reduction, let not by fall in the noise floor absorptive noise transmits the sound channel casing in, and spill over through the play sound hole at sound channel casing top, simultaneously through sound direction baffle with the sound wave guide to the rear, reduce the people and stand in the preceding noise impression of range hood, play good noise reduction, and simple structure, convenient to use.

Drawings

Fig. 1 is a schematic perspective view of a noise reduction device according to the present invention;

fig. 2 is a schematic cross-sectional view of a noise reduction device according to the present invention;

FIG. 3 is an enlarged schematic view of the present invention at A in FIG. 2;

fig. 4 is a schematic perspective view of a range hood according to the present invention;

fig. 5 is a schematic sectional perspective view of a range hood of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the scope of the claimed technical solution of the present invention.

As shown in fig. 1-5, a noise reduction device comprises a smoke machine air box shell 1, and is characterized in that at least one side of the smoke machine air box shell 1 is provided with a plurality of through holes 2, the smoke machine air box shell is provided with a sound channel shell 3 communicated with the space of the through holes 2, at least one noise reduction layer 4 is arranged between the sound channel shell 3 and the through holes 2, the top of the sound channel shell 3 is provided with a sound outlet 5, the sound channel shell 3 is provided with a sound guide partition plate 6 capable of guiding sound waves emitted from the sound outlet 5 to the rear, the noise in the range hood passes through the noise reduction layer 4 and enters the sound channel shell 3 through the through holes 2, the noise is reduced through the internal damping loss of the noise reduction layer 4, the noise not absorbed by the noise reduction layer 4 is transmitted into the sound channel shell 3 and overflows through the sound outlet 5 at the top of the sound channel shell 3, simultaneously, the sound guide baffle 6 guides sound waves to the rear, reduces noise feeling when people stand in front of the range hood, and has good noise reduction effect, simple structure and convenient use.

Layer 4 of making an uproar is ultra-thin flexible material, ultra-thin flexible material cover in on the through-hole 2, ultra-thin flexible material thickness is 10 mu m-100 mu m, ultra-thin flexible material accessible glue bonds on through-hole 2, both can prevent gas leakage, can pass through ultra-thin flexible material's internal damping loss noise reduction again, and will guarantee to have prestressing force to reach better noise reduction.

Sound direction baffle 6 sets up on the sound channel casing 3 and be located 5 the place ahead of phonate hole, the sound that will go out phonate hole 5 through sound direction baffle 6 is by the place ahead direction rear, reduces the noise impression of people standing in the front of range hood.

Sound direction baffle 6 is the arc, sound direction baffle 6's arc direction is towards the rear, through setting sound direction baffle 6 to the arc, makes the sound wave direction more stable and high-efficient.

Through-hole 2's aperture is greater than 2mm, sets up the aperture of through-hole 2 and can make most noise transmission go out more than 2 mm.

A range hood comprises the noise reduction device.

The above-mentioned detailed description of the technical solution and the beneficial effects of the present invention have been described in detail, it should be understood that the above is only the most preferred embodiment of the present invention, not used for limiting the present invention, any modification, supplement, equivalent replacement, etc. made within the principle scope of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a device of making an uproar falls, includes cigarette machine bellows shell (1), its characterized in that is at least be equipped with a plurality of through-holes (2) on one side of cigarette machine bellows shell (1) be equipped with on the cigarette machine bellows shell with sound channel casing (3) of the space intercommunication of through-hole (2), sound channel casing (3) with it falls layer (4) of making an uproar to be equipped with the one deck at least between through-hole (2 the top of sound channel casing (3) is equipped with out sound hole (5) be equipped with on sound channel casing (3) and follow sound guide to sound direction baffle (6) in the rear of sound wave guide that play sound hole (5) department spread.

2. The noise reducing device according to claim 1, characterized in that the noise reducing layer (4) is an ultra-thin flexible material, which covers the through-hole (2).

3. The noise reducer according to claim 2, wherein the ultra-thin flexible material has a thickness of 10 μ ι η -100 μ ι η.

4. The noise reduction device according to claim 1, characterized in that the sound guide baffle (6) is provided on the sound channel housing (3) in front of the sound outlet hole (5).

5. The noise reducer according to claim 4, wherein the sound guiding barrier (6) is an arc-shaped plate, and the arc-shaped direction of the sound guiding barrier (6) faces rearward.

6. The noise reduction device according to any of claims 1 to 5, characterized in that the aperture of the through-hole (2) is larger than 2 mm.

7. A range hood, characterized in that it comprises a noise reducing device according to any one of claims 1 to 6.