CN217109686U

CN217109686U - Noise-reducing range hood

Info

Publication number: CN217109686U
Application number: CN202122812209.6U
Authority: CN
Inventors: 徐新建; 郭建泉
Original assignee: Zhejiang Shuaikang Electric Stock Co Ltd
Current assignee: Zhejiang Shuaikang Electric Stock Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-08-02
Anticipated expiration: 2031-11-17

Abstract

The utility model provides a range hood of making an uproar falls, include: the smoke collecting hood comprises a smoke collecting hood, a fan frame arranged on the smoke collecting hood and a fan arranged in the fan frame, wherein a smoke suction port is arranged on the smoke collecting hood, and a smoke exhaust port is arranged on the fan frame; the method is characterized in that: still including establishing the decoration cover in the fan frame outside, be equipped with a plurality of bloops on the fan frame, decorate the cover with be equipped with the amortization material layer between the fan frame, the amortization material layer covers the bloop. The utility model discloses can reduce range hood's noise, conveniently change the amortization material layer simultaneously.

Description

Noise-reducing range hood

Technical Field

The utility model relates to a range hood's technical field mainly relates to a range hood of making an uproar falls.

Background

The performance of the range hood as an important kitchen electrical product in a kitchen affects the health and safety of users. Along with the development of science and technology, the comprehensive performance requirements of a user on the range hood are continuously improved, manufacturers of the range hood continuously emerge, the range hood is caused to be competitive day by day, and the manufacturers can take measures to reduce the noise of the range hood while improving the smoking capacity of the engine oil of the range hood in order to ensure the competitiveness.

The noise reduction method commonly used by the existing range hood is to adopt a noise reduction material to manufacture a noise reduction material layer, then the noise reduction material layer is placed in an air channel to isolate partial noise in the air channel, the range hood can convey oil smoke to the outside through the air channel under the working condition, then the noise reduction material layer is easily polluted by the oil smoke in the air channel, and then the noise reduction performance of the noise reduction material layer is reduced, meanwhile, because the noise reduction material layer is placed in the air channel, maintenance personnel need to dismantle the range hood to replace the oil smoke, the difficulty in replacing the noise reduction material layer is increased, and the maintenance is not convenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood of making an uproar falls can reduce range hood's noise, conveniently changes the amortization material layer simultaneously.

Therefore, the noise-reducing range hood comprises:

the smoke collecting hood comprises a smoke collecting hood, a fan frame arranged on the smoke collecting hood and a fan arranged in the fan frame, wherein a smoke suction port is arranged on the smoke collecting hood, and a smoke exhaust port is arranged on the fan frame; still including establishing the decoration cover in the fan frame outside, be equipped with a plurality of bloops on the fan frame, decorate the cover with be equipped with the amortization material layer between the fan frame, the amortization material layer covers the bloop.

Further, the noise reduction material layer comprises an installation frame, the installation frame is of a hollow square frame structure, and the noise reduction material is embedded into the hollow parts of the installation frame to cover the hollow parts.

Further, one side of the sound attenuation material layer is attached to the outer wall of the fan frame, and the other side of the sound attenuation material layer is attached to the inner wall of the decorative cover.

Further, the plurality of muffling holes are all opposite to the fan.

Furthermore, a plurality of the silencing holes are uniformly formed in the fan frame.

Furthermore, an oil guide groove is arranged at the contact part of the smoke collecting hood and the outer edge of the bottom of the fan frame, an oil guide hole is formed in the bottom of the oil guide groove, an oil collecting net is arranged at the bottom of the smoke collecting hood, and an oil collecting channel is arranged between the oil guide hole and the oil collecting net; the bottom of the silencing material layer is opposite to the oil guide groove.

Further, the bottom of the decorative cover is inserted into the oil guide groove.

Further, the diameter of the silencing hole is 1mm to 3mm, and the aperture ratio of the silencing hole on the fan frame is 1% to 5%.

Further, the diameter of the silencing hole is 2mm, and the aperture ratio of the silencing hole on the fan frame is 2%.

Further, the fixing piece wraps the outer wall of the silencing material layer, and two ends of the fixing piece are fixedly connected with the fan frame.

Has the beneficial effects that:

the utility model discloses a range hood falls and makes an uproar, through be provided with a plurality of bloops on the lateral wall at the fan frame, each bloop link up the wind channel respectively, the amortization material layer has been placed in the clearance between detachable dress trim cover and the fan frame, carry outside air from the smoking mouth toward the wind channel with higher speed at the fan, the pneumatic noise part that produces in the wind channel is absorbed by the amortization material layer through the bloop, and then reach the effect of noise elimination, avoided directly placing the amortization material layer among the wind channel, the contact of amortization material layer and oil smoke has been reduced, the life and the effective operating time on amortization material layer have been prolonged, and simultaneously, because the amortization material layer is installed at fan frame outer wall, dismantle dress trim cover and can take out the amortization material layer and change, play the effect of conveniently changing the amortization material layer.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of the noise-reducing range hood of the present invention;

FIG. 2 is a schematic structural view of the exhaust fume collecting hood with the decorative cover removed and the cover plate of the exhaust fume collecting hood removed;

FIG. 3 is a schematic view of the structure with the decorative cover, the sound attenuating layer and the smoke collecting cover removed;

FIG. 4 is an enlarged view of a portion of A in FIG. 3;

fig. 5 is a schematic structural diagram of the mounting frame.

Description of reference numerals: 1-a fan frame; 2-decorating cover; 3-a smoke outlet; 4-smoke collecting hood; 5-a sound-damping material layer; 6-silencing holes; 7-oil guide holes; 8-a fixing piece; 9-oil guide grooves; and 10, mounting a frame.

Detailed Description

The invention will be further described with reference to the following examples.

Referring to fig. 1, the noise reduction range hood in this embodiment includes: the fan comprises a fan frame 1 and a smoke collecting hood 4, wherein the smoke collecting hood 4 is arranged at the bottom of the fan frame, and the smoke collecting hood 4 and the fan frame are provided with inner cavities which are mutually communicated; a smoke suction port arranged at the bottom of the smoke collecting hood 4; the smoke outlet 3 is arranged on the top surface of the fan frame; the fan and the air duct are respectively arranged in the inner cavity, the smoke suction port is communicated with the air inlet of the fan through the air duct, and the air outlet of the fan is communicated with the smoke outlet 3; the side wall of the fan frame 1 is provided with a plurality of silencing holes 6 which penetrate through the inner cavity; the decoration cover 2 is detachably nested on the outer wall of the fan frame 1, and a gap is formed between the decoration cover 2 and the side wall of the fan frame 1; the silencing material layer 5 made of silencing material is embedded into the gap, two side faces of the silencing material layer 5 are respectively in interference fit and abutted with the side wall of the decorative cover 2 and the side wall of the fan frame 1, the upper end face of the silencing material layer 5 covers the top face of each silencing hole 6, and the lower end face of the silencing material layer covers the bottom face of each silencing hole. Through being provided with a plurality of bloop 6 on the lateral wall at fan frame 1, each bloop 6 link up the wind channel respectively, placed amortization material layer 5 in the clearance between detachable dress trim cover 2 and the fan frame 1, the fan is with outside air from the mouth of smoking toward the transport of speeding in the wind channel, the air with higher speed is absorbed by amortization material layer 5 at the in-process of dashing into bloop 6, and then reach the effect of noise abatement, avoided directly placing amortization material layer 5 among the wind channel, the contact of amortization material layer 5 with the oil smoke has been reduced, the life and the effective operating time of amortization material layer 5 have been prolonged, and simultaneously, because amortization material layer 5 installs at fan frame 1 outer wall, dismantle dress trim cover 2 and can take out amortization material layer 5 and change, play the effect of convenient change amortization material layer 5.

Further, the smoking mouth sets up the bottom of fan frame 1, exhaust port 3 sets up the top of fan frame 1.

Further, the sound attenuation material layer 5 includes a mounting frame 10 and sound attenuation materials, the mounting frame 10 is a square frame structure with a hollow middle portion, and the hollow portions of the sound attenuation materials embedded in the mounting frame 10 to the hollow portions are covered by the sound attenuation materials.

Further, the mounting frame 10 is made of any one of a metal material and a plastic material.

Further, the fan frame 1 is provided with four side walls, and the muffling hole 6 is at least arranged on one side wall.

Further, the diameter of the muffling hole 6 is 1mm to 3mm, the aperture ratio of the muffling hole 6 on the fan frame is 1% to 5%, the aperture ratio is the ratio of the total area of the sieve pores on the sieve plate to the area of the apertured area (also called effective mass transfer area), and the aperture ratio is the prior art and is not described herein again.

Further, the diameter of the silencing hole 6 is 2mm, and the aperture ratio of the silencing hole 6 on the fan frame is 2%.

See fig. 3 and fig. 4, further, still include oil guide groove 9, the bottom of fan frame 1 is equipped with the collection petticoat pipe 4 of border downward sloping, and oil guide groove 9 sets up at the top surface of collection petticoat pipe 4 and is located the clearance of decorating cover 2 and fan frame 1 lateral wall, and oil guide groove 9's top surface is towards amortization material layer 5, and its bottom surface is equipped with oil guide hole 7 open in fan frame 1 has oil guide channel, and oil guide channel's one end intercommunication oil guide hole, the other end intercommunication to detachable oil storage box.

See fig. 2, further, the fan further includes a fixing member 8, the fixing member 8 wraps the outer wall of the sound damping material layer 5, and two ends of the fixing member are fixedly connected with the fan frame 1.

The utility model discloses leaving certain interval between decorating cover 2 and fan frame 1 and being used for placing noise cancelling material, noise cancelling material inside and outside laminating fan frame 1 plays fixed purpose with decorating cover 2, also can use mounting 8 to fix noise cancelling material on fan frame 1, and mounting 8 can be sheet metal component or sticky tape etc.. Be provided with noise damping hole 6 on fan frame 1 with the contact of noise damping material medial surface, trilateral amortization of this scheme adoption has all opened the aperture on the both sides board of fan frame 1 and on the preceding curb plate. The silencing holes 6 can be formed in the front side plate only according to needs, and the front side of the front side plate is only required to be provided with silencing materials according to a corresponding scheme. An oil guide groove 9 is formed in the contact part of the upper side of the smoke collecting hood 4 and the fan frame 1, an oil guide hole 7 is formed in the oil guide groove 9, the bottom of a silencing material is placed in the oil guide groove 9, and the decorative cover 2 is also placed in the oil guide groove 9 and corresponds to the outer edge of the oil guide groove 9. The bloop 6 is evenly arranged, the diameter of the opening is between 1mm and 3mm, the perforation rate is between 1% and 5%, the diameter of the opening is preferably 2mm in the scheme of the embodiment, the perforation rate is 2%, and the bloop 6 can also adopt other non-circular holes. In the embodiment, another hole-opening scheme is provided, the front side plate is opposite to the inlet position of the volute and is an important source of front side noise, so that the hole-opening mode can be circularly arranged at the position opposite to the inlet position of the volute. The silencing material can be placed and coated on the outer side of the fan frame 1 in an integral structure, can also be in a split structure, and can be used for placing 1, 2 or 3 pieces of silencing cotton. For making things convenient for the whole taking of noise cancelling material, can place noise cancelling material in the whole installation position of placing between fan frame 1 and decoration cover 2 in installing frame 10, installing frame 10 can be plastic material or sheet metal construction. The sound deadening material of the present embodiment may be sound deadening cotton or other porous structural media, etc.

The lampblack absorber of making an uproar that falls of this embodiment design has avoided the acoustic material direct placement among the fan flue through place the amortization material between fan frame 1 and decoration cover 2, has reduced the contact with the oil smoke, has prolonged the life and the effective operating time of acoustic material, and it is installed in the fan frame 1 outside simultaneously, gets off and decorates cover 2 and can take out the acoustic material and change.

This embodiment uses micropore amortization principle to carry out physics and falls and make an uproar, and 6 boards in the bloop need not to make in addition on fan frame 1 in the bloop, and installation and use are more convenient. The silencing material structure of the embodiment is placed outside a flue system and is communicated with the flue only through the silencing holes 6, so that the contact with oil smoke is reduced. In order to avoid the oil smoke from overflowing to the outside of the fan system through the silencing hole 6 and gathering, an oil guide groove 9 structure is arranged at the contact position of the smoke collecting hood 4 of the range hood and the fan frame 1, an oil guide hole 7 is formed in the contact position, the oil guide hole 7 is communicated with an internal oil way, when a small amount of oil overflows through the silencing hole 6 and enters silencing cotton, the oil can enter the oil guide groove 9 and enter the internal oil way through the oil guide hole 7.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A noise reducing range hood comprising:

the smoke collecting hood comprises a smoke collecting hood, a fan frame arranged on the smoke collecting hood and a fan arranged in the fan frame, wherein a smoke suction port is arranged on the smoke collecting hood, and a smoke exhaust port is arranged on the fan frame; the method is characterized in that: still including establishing the decoration cover in the fan frame outside, be equipped with a plurality of bloops on the fan frame, decorate the cover with be equipped with the amortization material layer between the fan frame, the amortization material layer covers the bloop.

2. The range hood that makes an uproar falls in claim 1, wherein, the amortization material layer includes the installing frame, and the installing frame is the square frame structure of fretwork, and the amortization material imbeds the fretwork department of installing frame to covering each fretwork department.

3. The noise-reducing range hood of claim 1, wherein one side of the noise-reducing material layer is attached to the outer wall of the fan frame, and the other side of the noise-reducing material layer is attached to the inner wall of the decorative cover.

4. The noise-reducing range hood of claim 1, wherein the plurality of muffling holes are all opposite to the fan.

5. The noise-reducing range hood of claim 1, wherein the plurality of muffling holes are uniformly formed in the fan frame.

6. The noise-reducing range hood according to claim 1, wherein an oil guide groove is arranged at a contact position of the smoke collecting hood and the outer edge of the bottom of the fan frame, an oil guide hole is formed at the bottom of the oil guide groove, an oil collecting net is arranged at the bottom of the smoke collecting hood, and an oil collecting channel is arranged between the oil guide hole and the oil collecting net; the bottom of the silencing material layer is opposite to the oil guide groove.

7. The noise-reducing range hood of claim 6, wherein the oil guide groove is inserted into the bottom of the decorative cover.

8. The noise-reducing range hood of claim 1, wherein the diameter of the muffling hole is 1mm to 3mm, and the aperture ratio of the muffling hole on the fan frame is 1% to 5%.

9. The noise-reducing range hood of claim 8, wherein the diameter of the muffling hole is 2mm, and the aperture ratio of the muffling hole on the fan frame is 2%.

10. The noise-reducing range hood of claim 1, further comprising a fixing member, wherein the fixing member is wrapped on the outer wall of the noise-reducing material layer, and two ends of the fixing member are fixedly connected with the fan frame.