Noise reduction range hood

Abstract

The utility model discloses a noise reduction range hood, which is characterized in that a sound insulation cover is arranged to mount a smoke exhaust fan and preliminarily isolate wind noise generated during operation of the smoke exhaust fan, and the sound insulation cover is mounted through a shock absorption mounting structure, so that vibration caused by operation of the smoke exhaust fan is reduced, and the noise caused by the vibration is reduced. And the noise is further treated by arranging the side oil smoke filter screen of a bent structure on the side and the side sound-absorbing plate with the convex part, so that the noise generated by the whole equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a noise-reducing range hood. Background Art

[0002] As a common household appliance, the range hood is an indispensable device in the kitchen. It discharges the fumes generated during cooking from the room to avoid affecting the indoor environment and the health of the user.

[0003] However, when the range hood is in operation, the use of a high-power exhaust fan will generate noise, including noise caused by vibration and wind noise. The loud noise itself has an adverse effect on human health. At the same time, the noise causes other sounds to be inaudible while cooking, such as doorbells, mobile phone ringtones, etc., causing inconvenience. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model discloses a noise reduction range hood, which adopts a technical scheme that includes a smoke extraction hood, a mounting channel, a smoke extraction fan, a side wall mounting groove, a side oil smoke filter, a side sound absorbing board, a smoke exhaust pipe, a shock absorbing mounting structure, a sound insulation cover, a smoke extraction hole and a smoke extraction duct. The mounting channel is fixed on the smoke extraction hood, and two side wall mounting grooves in the front-rear direction are opened on the left and right sides of the mounting channel. The inner side wall mounting groove is connected with the inside of the mounting channel through a window, and the side sound absorbing board and the side oil smoke filter are respectively placed in the side wall mounting groove from the outside to the inside. The sound insulation cover is installed through the shock absorbing mounting structure arranged in the mounting channel, and the smoke exhaust pipe is connected at the top, and the smoke extraction fan is arranged inside. The vibration caused by the smoke extraction fan during operation can be reduced by the shock absorbing mounting structure, and the noise can be reduced to a certain extent by reducing the vibration. The sound insulation cover itself has a certain sound insulation effect on the wind noise generated by the smoke extraction fan during operation, thereby reducing the transmission of noise. The smoke extraction duct below is connected with the smoke extraction hood through the smoke extraction hole at the bottom of the mounting channel, and the smoke extraction fan is a high-power exhaust fan.

[0005] As a preferred technical solution of the utility model, the shock-absorbing mounting structure includes a lower fixing frame, an upper fixing frame, a damping shock absorber, a lower arc-shaped mounting plate, an upper arc-shaped mounting plate and an arc-shaped baffle. The lower fixing frame and the upper fixing frame are fixed to the bottom surface and the upper side of the inner part of the mounting channel respectively. The lower fixing frame and the upper fixing frame are both arc-shaped, and the damping shock absorbers are fixedly mounted on the left and right sides thereof. The upper arc-shaped mounting plate is fixed to the lower end of the upper damping shock absorber, and the lower arc-shaped mounting plate is fixed to the upper end of the lower damping shock absorber. The outer edges of the lower arc-shaped mounting plate and the upper arc-shaped mounting plate are integrally formed with an arc-shaped baffle. The arc-shaped baffle limits and protects the position of the sound insulation cover. Under the action of the damping shock absorber, when the smoke exhaust fan installed in the sound insulation cover is running and causes the sound insulation cover to vibrate, the vibration is reduced, thereby reducing the noise generated by the vibration.

[0006] As a preferred technical solution of the utility model, a detachable filter is provided at the connection between the smoking hole and the smoking hood.

[0007] As a preferred technical solution of the utility model, the side oil fume filter is bent, and the bent structure has a certain sound-collecting effect. The sound insulation cover is welded to the lower arc-shaped mounting plate and the upper arc-shaped mounting plate.

[0008] As a preferred technical solution of the utility model, a plurality of raised portions are distributed in an array on the inner side of the side sound-absorbing panel, and the raised portions correspond to the positions of the recessed portions of the bent side oil fume filter. The bent structure has a certain gathering effect, which is gathered at the recessed portion. The side sound-absorbing panel with the raised portions is provided to improve the sound absorption effect for this portion, and the sound absorption is more targeted, thereby improving the sound absorption effect and greatly reducing the transmission of noise.

[0009] The beneficial effects of the utility model are as follows: the smoke exhaust fan is installed by arranging a soundproof cover, and the wind noise generated during its operation is preliminarily isolated; the soundproof cover installed by the shock-absorbing mounting structure reduces the vibration caused by the operation of the smoke exhaust fan, thereby reducing the noise caused by the vibration; the side fume filter and the side sound-absorbing panel are used to further process the noise, thereby reducing the noise generated by the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a front side cross-sectional structural schematic diagram of the utility model;

[0012] Figure 3 It is a schematic diagram of the structure of some components of the utility model.

[0013] In the figure: a smoke hood 1, a mounting channel 2, a smoke exhaust fan, a side wall mounting groove 3, a side fume filter 4, a side sound absorbing panel 5, a smoke exhaust pipe 6, a lower fixing frame 7, an upper fixing frame 8, a damping shock absorber 9, a lower arc-shaped mounting plate 101, an upper arc-shaped mounting plate 10, an arc-shaped baffle 11, a soundproof cover 12, a smoke extraction hole 13, and a smoke extraction pipe 14. DETAILED DESCRIPTION

[0014] Example 1

[0015] like Figures 1 to 3As shown, the utility model discloses a noise reduction range hood, and the technical scheme adopted is, comprising a smoke extraction hood 1, a mounting channel 2, a smoke extraction fan, a side wall mounting groove 3, a side smoke filter 4, a side sound absorbing panel 5, a smoke exhaust pipe 6, a shock absorbing mounting structure, a soundproof cover 12, a smoke extraction hole 13 and a smoke extraction duct 14. The mounting channel 2 is fixed on the smoke extraction hood 1, and two side wall mounting grooves 3 in the front-rear direction are opened on the left and right sides of the mounting channel 2. The inner side wall mounting groove 3 is connected with the interior of the mounting channel 2 through a window, and the side sound absorbing panel 5 and the side smoke filter 4 are respectively placed in the side wall mounting grooves 3 from the outside to the inside. The soundproof cover 12 is installed through the shock absorbing mounting structure arranged in the mounting channel 2, and is connected with the smoke exhaust pipe 6 at the top, and is arranged with a smoke extraction fan inside. The smoke extraction duct 14 at the bottom is connected with the smoke extraction hood 1 through the smoke extraction hole 13 at the bottom of the mounting channel 2, and the smoke extraction fan is a high-power exhaust fan.

[0016] As a preferred technical solution of the utility model, the noise generation can be reduced to a certain extent by setting a shock-absorbing mounting structure. Its specific structure includes a lower fixing frame 7, an upper fixing frame 8, a damping shock absorber 9, a lower arc-shaped mounting plate 101, an upper arc-shaped mounting plate 10 and an arc-shaped baffle 11. The lower fixing frame 7 and the upper fixing frame 8 are fixed to the bottom surface and the upper side of the inner bottom of the mounting channel 2 respectively. The lower fixing frame 7 and the upper fixing frame 8 are both arc-shaped, and the damping shock absorber 9 is fixed on the left and right sides thereof. The upper arc-shaped mounting plate 10 is fixed to the lower end of the upper damping shock absorber 9, and the lower arc-shaped mounting plate 101 is fixed to the upper end of the lower damping shock absorber 9. The outer edges of the lower arc-shaped mounting plate 101 and the upper arc-shaped mounting plate 10 are integrally formed with an arc-shaped baffle 11.

[0017] As a preferred technical solution of the present utility model, a detachable filter is provided at the connection point between the smoking hole 13 and the smoking hood 1 .

[0018] As a preferred technical solution of the utility model, the side fume filter 4 is bent, and the bent structure has a certain gathering effect, and the side sound-absorbing panel 5 can be used to carry out targeted and centralized processing of the generated noise.

[0019] As a preferred technical solution of the utility model, a plurality of raised portions are distributed in an array on the inner side of the side sound absorbing panel 5 , and the raised portions correspond to the recessed portions of the curved side oil fume filter 4 , thus having a good sound absorbing and noise reducing effect.

[0020] Working principle of the utility model: during use, the sound insulation cover 12 preliminarily isolates the wind noise generated by the operation of the smoke exhaust fan, and the sound insulation cover 12 installed by the damping shock absorber 9 arranged in the shock-absorbing mounting structure reduces the vibration caused by the operation of the smoke exhaust fan, thereby reducing the noise caused by the vibration, and the side fume filter 4 with a side bending structure has a certain effect of collecting noise, and the sound-absorbing panel 5 with a protruding part on the outside can perform effective sound absorption processing, and is more targeted to achieve a good noise reduction effect.

[0021] Components not described in detail herein are prior art.

[0022] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A noise reduction range hood, characterized in that: The invention comprises a smoking hood (1), a mounting channel (2), a smoke exhaust fan, a side wall mounting groove (3), a side oil fume filter (4), a side sound absorbing board (5), a smoke exhaust pipe (6), a shock absorbing mounting structure, a soundproofing hood (12), a smoke exhaust hole (13) and a smoke exhaust pipe (14); the smoking hood (1) is fixed with the mounting channel (2); two side wall mounting grooves (3) are provided on the left and right sides of the mounting channel (2) in the front-back direction, and the inner side wall mounting groove (3) is connected to the inside of the mounting channel (2) through a window; the side sound absorbing board (5) and the side oil fume filter (4) are respectively placed in the side wall mounting groove (3) from the outside to the inside; the soundproofing hood (12) is installed through the shock absorbing mounting structure arranged in the mounting channel (2), the upper part is connected with the smoke exhaust pipe (6), the inner part is provided with a smoke exhaust fan, and the lower part of the smoke exhaust pipe (14) is connected to the smoking hood (1) through the smoke exhaust hole (13) at the bottom of the mounting channel (2).

2. The noise reduction range hood according to claim 1, characterized in that: The smoke exhaust fan is a high-power exhaust fan.

3. The noise reduction range hood according to claim 1, characterized in that: The shock-absorbing mounting structure comprises a lower fixing frame (7), an upper fixing frame (8), a damping shock absorber (9), a lower arc-shaped mounting plate (101), an upper arc-shaped mounting plate (10) and an arc-shaped baffle (11); the lower fixing frame (7) and the upper fixing frame (8) are respectively fixed to the inner bottom surface and the upper side of the mounting channel (2); the lower fixing frame (7) and the upper fixing frame (8) are both arc-shaped, and the damping shock absorber (9) is fixedly mounted on the left and right sides thereof; the upper arc-shaped mounting plate (10) is fixed to the lower end of the upper damping shock absorber (9), and the lower arc-shaped mounting plate (101) is fixed to the upper end of the lower damping shock absorber (9); and the arc-shaped baffle (11) is integrally formed at the outer edges of the lower arc-shaped mounting plate (101) and the upper arc-shaped mounting plate (10).

4. The noise reduction range hood according to claim 1, characterized in that: A detachable filter is provided at the connection point between the smoking hole (13) and the smoking hood (1).

5. The noise reduction range hood according to claim 1, characterized in that: The side oil fume filter (4) is in a bent shape.

6. The noise reduction range hood according to claim 5, characterized in that: A plurality of raised portions are distributed in an array on the inner side of the side sound absorbing plate (5), and the raised portions correspond to the positions of the recessed portions of the bent side oil fume filter (4).

7. The noise reduction range hood according to claim 3, characterized in that: The sound insulation cover (12) is welded to the lower arc-shaped mounting plate (101) and the upper arc-shaped mounting plate (10).

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