CN217952400U

CN217952400U - Mute type lampblack absorber bellows

Info

Publication number: CN217952400U
Application number: CN202221598615.5U
Authority: CN
Inventors: 谭六明; 刘浙明
Original assignee: Guangdong Hesheng Electric Co ltd
Current assignee: Guangdong Hesheng Electric Co ltd
Priority date: 2022-06-25
Filing date: 2022-06-25
Publication date: 2022-12-02
Anticipated expiration: 2032-06-25

Abstract

The utility model provides a hush air formula lampblack absorber bellows which characterized in that: the air box comprises a front panel and side enclosing plates, wherein a rectangular air box with an upper opening and a lower opening is assembled between the front panel and the side enclosing plates, a top plate covers the top of the air box, a volute component is installed in the air box, and an air outlet of the volute component is in butt joint with an air pipe seat on the top plate; three inside walls of side bounding wall on the cover install noise insulation, correspondingly, cover on the inside wall of front panel and install and fall the board of making an uproar, fall the board of making an uproar and be discoid, its middle part is provided with convex bulge, the central point of bulge sets up its spiral case subassembly's air intake central point, falls to still set up a plurality of holes of making an uproar that are the annular distribution on the board of making an uproar, fall the hole of making an uproar and run through and fall the setting of the board body of making an uproar. The utility model has the advantages that: the sound insulation device is arranged inside the air box, so that the outward conduction of noise can be effectively inhibited, and the noise of the range hood during working is reduced.

Description

Mute type lampblack absorber bellows

Technical Field

The utility model relates to a lampblack absorber accessory specifically is a hush air formula lampblack absorber bellows.

Background

The household range hood is used in a kitchen, can remove smoke generated during cooking, keeps the kitchen clean and healthy, and becomes essential kitchen equipment for modern families. However, the problem brought about by the use of the range hood is strong noise generated by the fan, and housewives and kitchen operators who have been on the noise for a long time can generate adverse reactions such as headache, dysphoria, palpitation and the like, thereby causing serious influence on body health.

The fan of the range hood generally includes a fan and a volute housing which is provided with an airflow channel and is provided with the fan. The fan is typically driven by a motor that is connected to the impeller by a shaft. When the fan is used, the motor drives the fan impeller to rotate to cause vibration, the shell generates resonance through the connection of the motor and the shell of the range hood, and noise is also generated by the friction impact of air flowing in the fan. Therefore, the noise source of the range hood mainly includes two aspects, the first aspect is the noise of the fan itself, such as the noise generated by vibration, and the second aspect is the noise generated by air flow.

The noise reduction technology and method of the prior known range hood are designed optimally, the performance of the fan is improved, the noise and vibration of the fan are reduced, the purpose of reducing the noise of the whole machine is achieved, and the rigidity of relevant parts of the whole machine, particularly the rigidity of a shell thin plate part, is improved, and the generation of resonance noise of the shell thin plate part is inhibited. However, both aspects have reached the limits of the technology and the noise reduction effect is not very desirable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, low in production cost can effectively reduce noise at work's a silence type lampblack absorber bellows.

The utility model discloses the purpose is realized with following mode: the utility model provides a hush air formula lampblack absorber bellows which characterized in that: the air box comprises a front panel and side enclosing plates, a rectangular air box with an upper opening and a lower opening is assembled between the front panel and the side enclosing plates, a top plate covers the top of the air box, a volute component is installed inside the air box, and an air outlet of the volute component is in butt joint with an air pipe seat on the top plate; three inside walls of side bounding wall on the cover install noise insulation, correspondingly, cover on the inside wall of front panel and install and fall the board of making an uproar, fall the board of making an uproar and be discoid, its middle part is provided with convex bulge, the central point of bulge sets up its spiral case subassembly's air intake central point, fall and still set up a plurality of holes of making an uproar that are the annular distribution on the board of making an uproar, fall the hole of making an uproar and run through the board body setting of making an uproar.

And the bottom of the top plate is covered and provided with a sound insulation device.

The sound insulation device comprises a sound insulation cover, a plurality of sound absorption holes are formed in the surface of the sound insulation cover, and the sound absorption plates are covered inside the sound insulation cover.

The sound absorption plate is made of sound absorption cotton.

And a convex mounting area is arranged at the position of the side wall plate corresponding to the sound insulation device.

The mounting area is formed by outwards stamping the side wall plate body.

Noise reduction plate's back is installed the soundproof cotton, and soundproof cotton is fixed between panel and the noise reduction plate by the centre gripping.

The beneficial effects of the utility model are that: 1. simple structure, low in production cost improves market competition. 2. The sound insulation device is arranged inside the air box, so that the outward conduction of noise can be effectively inhibited, and the noise of the range hood during working is reduced. 3. The sound insulation device and the noise reduction plate are provided with a plurality of noise reduction holes which are combined with the sound absorption plate for use, so that reverberation in the air box can be greatly reduced, and noise is reduced from the root. 4. The special-shaped noise reduction plate is arranged, so that the middle part of the noise reduction plate is provided with the arc-shaped protruding part which is aligned with the central point of the air inlet of the volute component, the rectifying and noise reduction effects on sucked air are achieved, the wind resistance of the range hood in the smoking process is smaller, and the working efficiency of the range hood is improved.

Drawings

Fig. 1 is the final assembly effect diagram of the present invention.

Fig. 2 and 3 are structural assembly drawings of the present invention.

Fig. 4 is a schematic structural view of the middle sound-insulating device of the present invention.

Fig. 5 is the structure diagram of the noise reduction plate of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides a hush air formula lampblack absorber bellows which characterized in that: the air box comprises a front panel 1 and a side wall plate 2, wherein a rectangular air box with an upper opening and a lower opening is assembled between the front panel and the side wall plate, a top plate 3 covers the top of the air box, a volute component 4 is installed inside the air box, and an air outlet of the volute component 4 is in butt joint with an air pipe seat 8 on the top plate 3; three inside walls of the side wall plate 2 are covered with the sound insulation device 5, correspondingly, the inside wall of the front panel 1 is covered with the noise reduction plate 6, the noise reduction plate 6 is disc-shaped, the middle part of the noise reduction plate is provided with a circular arc-shaped protruding part 61, the central point of the protruding part 61 is arranged at the central point of the air inlet of the volute component 4, the noise reduction plate 6 is further provided with a plurality of noise reduction holes 62 which are annularly distributed, and the noise reduction holes 62 penetrate through the noise reduction plate 6.

The bottom of the top plate 3 is covered and provided with a sound insulation device 5.

The sound insulation device 5 comprises a sound insulation cover 51, a plurality of sound absorption holes 52 are formed in the surface of the sound insulation cover 51, and a sound absorption plate 53 covers the inside of the sound insulation cover 51.

The sound-absorbing board 53 is made of sound-absorbing cotton.

And a convex mounting area 21 is arranged at the position of the side wall plate 2 corresponding to the sound insulation device 5.

The mounting area 21 is formed by punching the body of the side wall plate 2 outwards.

Soundproof cotton 7 is installed at the back of the noise reduction plate 6, and the soundproof cotton 7 is clamped and fixed between the panel and the noise reduction plate 6.

The working principle is as follows: as shown in fig. 2 and 3, cover on three inside wall and the roof of bellows and install noise insulation 5 in the present case, and cover on the inside wall of front panel 1 and install and fall board 6 of making an uproar, fall board 6 of making an uproar and be discoid, its middle part is provided with convex jut 61, the central point of jut 61 sets up its spiral case subassembly 4's air intake central point, the setting of this jut can play has the rectification to inspiratory air and falls the effect of making an uproar for the windage is littleer when the gaseous income spiral case subassembly of oil smoke, thereby promotes lampblack absorber smoking work efficiency.

When the lampblack absorber during operation, wind wheel and the gaseous cutting of colliding each other of oil smoke produce noise easily, and when the noise of this production was outwards conducted through falling the hole of making an uproar, the noise was absorbed or the reflection by acoustic celotex board and sound absorption cotton to can reduce the inside noise of bellows outwards conduction betterly, promote the range hood fall ability of making an uproar and use the quality.

Wherein, it is required to be noted that: noise insulation in the present case includes sound-proof housing and abatvoix 53, the abatvoix passes through the sound-proof housing to be fixed on the internal surface of side bounding wall and roof, when playing the effect of making an uproar that falls that gives sound insulation, sound-proof housing and abatvoix can also play the auxiliary stay effect of offside bounding wall, increase the intensity of side bounding wall, thereby avoid side bounding wall and roof to receive the wind pressure influence and produce deformation at the during operation, and then the resonance noise that produces, from the production of the root noise reduction, make this structure work more silence when using, so can extensively use widely.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a hush air formula lampblack absorber bellows which characterized in that: the air box comprises a front panel (1) and a side wall plate (2), a rectangular air box with an upper opening and a lower opening is assembled between the front panel and the side wall plate, a top plate (3) covers the top of the air box, a volute component (4) is installed inside the air box, and an air outlet of the volute component (4) is in butt joint with an air pipe seat on the top plate (3); three inside walls of side wall board (2) on the cover install noise insulation (5), correspondingly, cover on the inside wall of front panel (1) and install and fall board (6) of making an uproar, fall board (6) of making an uproar and be discoid, its middle part is provided with convex jut (61), the central point of jut (61) sets up to the air intake central point of its spiral case subassembly (4), fall and still set up a plurality of holes (62) of making an uproar that fall that are the annular distribution on board (6) of making an uproar, fall hole (62) of making an uproar and run through and fall the setting of board (6) body of making an uproar.

2. A silent range hood bellows according to claim 1, wherein: and a sound insulation device (5) is covered and installed at the bottom of the top plate (3).

3. A silent range hood bellows according to claim 1 or 2, wherein: the sound insulation device (5) comprises a sound insulation cover (51), a plurality of sound absorption holes (52) are formed in the surface of the sound insulation cover (51), and a sound absorption plate (53) covers the inside of the sound insulation cover (51).

4. A silent range hood bellows according to claim 3, wherein: the sound-absorbing board (53) is made of sound-absorbing cotton.

5. The quiet type lampblack absorber bellows according to claim 1, characterized in that: and a convex mounting area (21) is arranged at the position of the side wall plate (2) corresponding to the sound insulation device (5).

6. A silent type range hood bellows according to claim 5, characterized in that: the mounting area (21) is formed by outwards stamping a side wall plate (2) body.

7. A silent range hood bellows according to claim 1, wherein: noise insulation cotton (7) are installed at the back of the noise reduction plate (6), and the noise insulation cotton (7) are clamped and fixed between the panel and the noise reduction plate (6).