CN211372529U

CN211372529U - Fume exhaust fan

Info

Publication number: CN211372529U
Application number: CN201921438462.6U
Authority: CN
Inventors: 陈浩辉; 徐鑫; 申志贤
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-14
Filing date: 2019-08-30
Publication date: 2020-08-28
Anticipated expiration: 2029-08-30
Also published as: CN210662985U9; CN212378029U; CN111023221A; CN111435004A; CN210861258U; CN111006291A; CN210861270U; CN210399057U; CN211822557U; CN111006291B; CN210861275U; CN211119553U; CN111435005A; CN210399058U; CN210662985U; CN211822584U; CN210861257U; CN210662986U; CN211119554U; CN211822556U

Abstract

The utility model relates to a range hood, including the casing and locate the fan system in this casing, the casing lower part has the smoke inlet chamber of vertical extension, and casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, and the collection smoke chamber extends forward and forms the installation cavity that is used for installing fan system, and the casing bottom is formed with the inclined plane of tilt up gradually forward from the back, and this inclined plane corresponds the below of collection smoke chamber and installation cavity and arranges, just the inclined plane rear portion is opened there is the smoke inlet that corresponds smoke inlet chamber lower extreme and arranges. The utility model can extend downwards to be close to the kitchen range and the oil smoke generating source, thereby the oil smoke is quickly sucked into the smoke inlet cavity to be discharged upwards as soon as the oil smoke is generated, and the oil smoke suction effect is improved; the inclined plane of casing lower extreme can produce the guide effect to the oil smoke, and the cigarette inlet of putting down is directly linked together with the smoke inlet chamber of vertical arrangement, and the oil smoke is not big change in the direction of cigarette inlet department, consequently, has reduced the production of this place vortex, and then has reduced energy loss and the aerodynamic noise that the vortex caused.

Description

Fume exhaust fan

Technical Field

The utility model relates to a for kitchen use household electrical appliances technical field specifically indicates a range hood.

Background

Range hood is the electrical apparatus that is essential in the kitchen at present, and is comparatively common and use more extensively to arrange oily smoke purification system in last.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more attractive, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

The vertically arranged smoke inlet air channel is favorable for approaching an oil smoke generating source, but for the vertically arranged smoke inlet air channel, if the smoke inlet is positioned at the front side of the smoke inlet air channel and is vertically arranged with the smoke inlet air channel, when rising oil smoke enters the smoke inlet air channel from the smoke inlet, vortex flow can be formed at the inner wall of the inlet of the smoke inlet air channel when fluid turns quickly, so that gas backflow is caused, and energy loss and aerodynamic noise are generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a through making the smoke inlet fully be close the oil smoke source and improve the range hood of oil absorption cigarette effect.

The utility model discloses another technical problem that will solve is to prior art's current situation, provides one kind through putting down the smoke inlet and reduce the range hood of energy loss and the noise that the vortex caused.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the casing and locates the fan system in this casing, its characterized in that: the improved fan is characterized in that the lower portion of the shell is provided with a vertically extending smoke inlet cavity, the upper portion of the shell is provided with a smoke collecting cavity communicated with the smoke inlet cavity, the smoke collecting cavity extends forwards to form an installation cavity used for installing a fan system, the bottom of the shell is provided with an inclined plane which gradually inclines upwards from back to front, the inclined plane corresponds to the smoke collecting cavity and the installation cavity and is arranged below the smoke collecting cavity and the installation cavity, and the rear portion of the inclined plane is provided with a smoke inlet arranged at the lower end of the smoke inlet cavity.

Preferably, the air inlet of the fan system is arranged towards the rear, and a first guide plate is connected between the lower edge of the rear side wall of the fan system and the upper end of the front side wall of the smoke inlet cavity and gradually inclines forwards from top to bottom. The structure is beneficial to increasing the flow velocity of the air flow and improving the oil smoke suction efficiency.

Further preferably, the first guide plate divides the smoke collecting cavity and the installation cavity into two relatively independent cavities. And a first sound absorption cotton is arranged on the inner front wall of the mounting cavity. Adopt above-mentioned structure, mainly encapsulate fan system in the installation cavity to set up first sound cotton of inhaling in the installation cavity, be favorable to hindering the noise propagation that fan system produced, and utilize first sound cotton of inhaling to adsorb the noise in the installation cavity, reduce range hood's whole noise.

Preferably, the front end of the inclined plane is located at the front side of the installation cavity, and the lower side wall of the installation cavity, the front side wall of the smoke inlet cavity and the space above the inclined plane form an assembly cavity for loading functional components of the range hood. This assembly chamber can be used to carry on functional unit such as air purification system, illumination lamps and lanterns to make full use of the utility model discloses the produced space of range hood model provides more facilities for the consumer.

Preferably, the rear side wall of the smoke inlet cavity is positioned at the front side of the rear side wall of the smoke collection cavity, and a second guide plate which gradually inclines upwards from front to back is connected between the upper end of the rear side wall of the smoke inlet cavity and the lower end of the rear side wall of the smoke collection cavity. The structure is favorable for guiding the oil smoke at the joint of the smoke inlet cavity and the smoke collecting cavity, and avoids energy loss caused by vortex formed by the oil smoke at the joint.

Further preferably, be formed with installation space between the rear wall of advancing the cigarette chamber and the collection cigarette chamber rear wall place plane, this installation space is located the below of second guide plate is installed the second and is inhaled the sound cotton, it has the through-hole that supplies to advance the cigarette chamber and the second to inhale the sound cotton and be linked together to open on the rear wall of advancing the cigarette chamber. The structure of above-mentioned second guide plate provides installation space for the second just inhales cotton setting of sound, and inhales the cotton setting of sound with the second here, can reduce the oil smoke and advance the noise that the impact of smoke cavity back wall formed.

Preferably, the front side wall of the smoke inlet cavity is inclined forwards from top to bottom. The structure is favorable for avoiding the oil smoke from forming vortex at the inlet of the smoke inlet cavity.

Preferably, a smoke baffle plate is arranged at the front side edge of the smoke inlet, and the smoke baffle plate is gradually and downwards inclined from back to front. The smoke baffle is favorable for improving the smoke gathering effect, and further the oil smoke absorption effect is improved.

Compared with the prior art, the utility model has the advantages of: the back wall of the shell of the range hood of the utility model is mounted by wall hanging, because the smoke inlet cavity at the lower part of the shell extends vertically, the width of the smoke inlet cavity in the front and back direction can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, so that the smoke can be rapidly sucked into the smoke inlet cavity to be discharged as soon as the smoke is generated, and the smoke suction effect is improved; the inclined plane of casing lower extreme can produce the guide effect to the oil smoke, and the cigarette inlet of putting down is directly linked together with the smoke inlet chamber of vertical arrangement, and the oil smoke is not big change in the direction of cigarette inlet department, consequently, has reduced the production of this place vortex, and then has reduced energy loss and the aerodynamic noise that the vortex caused.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a cross-sectional view at another angle of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, the range hood of the present embodiment includes a housing 1 and a fan system 2 disposed in the housing 1. The lower part of the shell 1 is provided with a vertically extending smoke inlet cavity 11, the upper part of the shell 1 is provided with a smoke collecting cavity 12 communicated with the smoke inlet cavity 11, the smoke collecting cavity 12 extends forwards to form a mounting cavity 13 for mounting the fan system 2, it should be noted that the mounting cavity 13 is used for mounting the fan system 2, but the mounting position of the fan system 2 is not completely limited in the mounting cavity 13, and as the smoke collecting cavity 12 and the mounting cavity 13 are integrated, when the fan system 2 is mounted, the part of the fan system 2 can be positioned in the smoke collecting cavity 12 according to requirements. Because the smoke inlet cavity 11 at the lower part of the shell 1 vertically extends, the smoke inlet cavity 11 can be made thinner along the width in the front-back direction and can extend downwards to be sufficiently close to the cooker and a smoke generating source, so that the smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards once being generated, and the smoke suction effect is improved.

The bottom of the housing 1 of this embodiment is formed with an inclined plane 14 gradually inclined upwards from back to front, the inclined plane 14 is disposed below the smoke collecting cavity 12 and the mounting cavity 13, and the rear part of the inclined plane 14 is provided with a smoke inlet 111 disposed at the lower end of the smoke inlet cavity 11. The inclined surface 14 can guide the oil smoke, the downward smoke inlet 111 is directly communicated with the vertically arranged smoke inlet cavity 11, and the direction of the oil smoke at the smoke inlet 111 is not greatly changed, so that the generation of vortex at the position is reduced, and the energy loss and the pneumatic noise caused by the vortex are further reduced.

The air inlet 21 of the fan system 2 of the embodiment is arranged backwards, the air outlet 22 is arranged upwards, the lower edge of the rear side wall of the fan system 2 and the upper end of the front side wall of the smoke inlet cavity 11 are connected with the first guide plate 3, the first guide plate 3 is gradually inclined forwards from top to bottom, the airflow velocity is increased, and the oil smoke absorption efficiency is improved. The first guide plate 3 divides the smoke collecting cavity 12 and the mounting cavity 13 into two relatively independent cavities. The inner front wall of the mounting cavity 13 is provided with a first sound absorption cotton 131. Encapsulate fan system 2 in installation cavity 13 to set up the first cotton 131 of inhaling sound in installation cavity 13, be favorable to hindering the noise propagation that fan system 2 produced, and utilize the first cotton 131 of inhaling sound to adsorb the noise in installation cavity 13, reduce range hood's whole noise.

In this embodiment, the front end of the inclined plane 14 is located at the front side of the installation cavity 13, and the lower side wall of the installation cavity 13, the front side wall of the smoke inlet cavity 11 and the space above the inclined plane 14 form an assembly cavity 15 for loading the functional components of the range hood. This assembly chamber 15 can be used to carry functional unit such as air purification system, illumination lamps and lanterns to the produced space of make full use of this embodiment range hood model provides more convenience for the consumer.

The rear side wall of the smoke inlet cavity 11 of the present embodiment is located at the front side of the rear side wall of the smoke collecting cavity 12, and a second guide plate 4 which gradually inclines upwards from front to back is connected between the upper end of the rear side wall of the smoke inlet cavity 11 and the lower end of the rear side wall of the smoke collecting cavity 12. The structure is beneficial to guiding the oil smoke at the joint of the smoke inlet cavity 11 and the smoke collection cavity 12, and energy loss caused by vortex formed by the oil smoke at the joint is avoided. An installation space 41 is formed between the plane of the rear side wall of the smoke inlet cavity 11 and the plane of the rear side wall of the smoke collecting cavity 12, the installation space 41 is positioned below the second guide plate 4 and is provided with a second sound absorbing cotton 42, and the rear side wall of the smoke inlet cavity 11 is provided with a through hole 112 for communicating the smoke inlet cavity 11 and the second sound absorbing cotton 42. The structure of the second guide plate 4 just provides an installation space for the second sound-absorbing cotton 42, and the second sound-absorbing cotton 42 is arranged at the place, so that the noise formed by the collision of the oil smoke and the rear wall of the smoke inlet cavity 11 can be reduced. The front side wall of the smoke inlet cavity 11 is inclined forwards from top to bottom, and the structure is favorable for preventing the oil smoke from forming vortex at the inlet of the smoke inlet cavity 11.

The front side edge of the smoke inlet 111 of the present embodiment is provided with a smoke baffle 5, and the smoke baffle 5 is arranged to be gradually inclined downwards from back to front. The smoke baffle 5 is favorable for improving the smoke gathering effect, and further the oil smoke absorption effect is improved. The smoke inlet 111 is provided with a filter screen 6, and the rear side of the lower end of the shell 1 is provided with an oil cup 7 which is arranged close to the filter screen 6.

Claims

1. The utility model provides a range hood, includes casing (1) and locates fan system (2) in this casing (1), its characterized in that: casing (1) lower part has vertical extension's smoke inlet chamber (11), casing (1) upper portion has collection smoke chamber (12) that are linked together with smoke inlet chamber (11), collection smoke chamber (12) extend forward and form installation cavity (13) that are used for installing fan system (2), casing (1) bottom is formed with inclined plane (14) from back forward tilt gradually, and this inclined plane (14) correspond the below of collection smoke chamber (12) and installation cavity (13) is arranged, just inclined plane (14) rear portion is opened has into cigarette mouth (111) that correspond smoke inlet chamber (11) lower extreme and arrange.

2. The range hood of claim 1, wherein: the air inlet (21) of the fan system (2) is arranged backwards, a first guide plate (3) is connected between the lower edge of the rear side wall of the fan system (2) and the upper end of the front side wall of the smoke inlet cavity (11), and the first guide plate (3) inclines forwards from top to bottom gradually.

3. The range hood of claim 2, wherein: the first guide plate (3) divides the smoke collection cavity (12) and the installation cavity (13) into two relatively independent cavities.

4. The range hood of claim 2, wherein: and a first sound absorption cotton (131) is arranged on the inner front wall of the mounting cavity (13).

5. The range hood according to any one of claims 1 to 4, wherein: the front end of the inclined plane (14) is positioned at the front side of the mounting cavity (13), and the lower side wall of the mounting cavity (13), the front side wall of the smoke inlet cavity (11) and the space above the inclined plane (14) form an assembly cavity (15) for loading functional components of the range hood.

6. The range hood according to any one of claims 1 to 4, wherein: the rear side wall of the smoke inlet cavity (11) is positioned at the front side of the rear side wall of the smoke collecting cavity (12), and a second guide plate (4) which gradually inclines upwards from front to back is connected between the upper end of the rear side wall of the smoke inlet cavity (11) and the lower end of the rear side wall of the smoke collecting cavity (12).

7. The range hood of claim 6, wherein: it has installation space (41) to advance between the rear wall of cigarette chamber (11) and collection cigarette chamber (12) rear wall place plane, and this installation space (41) are located the below of second guide plate (4) is installed the second and is inhaled sound cotton (42), it has confession to advance on the rear wall of cigarette chamber (11) to inhale sound cotton (42) through-hole (112) that are linked together with the second.

8. The range hood according to any one of claims 1 to 4, wherein: the front side wall of the smoke inlet cavity (11) is gradually and forwards inclined from top to bottom.

9. The range hood according to any one of claims 1 to 4, wherein: the front side edge of the smoke inlet (111) is provided with a smoke baffle plate (5), and the smoke baffle plate (5) is gradually arranged from back to front in a downward inclined mode.