CN210861275U

CN210861275U - Fume exhaust fan

Info

Publication number: CN210861275U
Application number: CN201921440476.1U
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: 2020-06-26
Anticipated expiration: 2029-08-30
Also published as: CN210662986U; CN210861258U; CN211119552U; CN111006291B; CN210861270U; CN211372530U; CN210662985U; CN211625389U; CN210861257U; CN212378029U; CN111006291A; CN210399057U; CN211625390U; CN211119554U; CN210399058U; CN111023221B; CN111023221A; CN212378031U; CN211372529U; CN210662985U9

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 preceding lateral wall top-down that advances the smoke chamber slopes forward gradually, and the lower port that advances the smoke chamber constitutes range hood's the mouth that advances. 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 underlying smoke inlet is directly communicated with the vertically arranged smoke inlet cavity, and the direction of the oil smoke at the smoke inlet 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 reduced.

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 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 a mounting cavity used for mounting a fan system, the front side wall of the smoke inlet cavity inclines forwards gradually from top to bottom, and the lower port of the smoke inlet cavity forms a smoke inlet of the range hood.

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 first 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.

Preferably, a first installation space is formed between the planes of the rear side wall of the smoke inlet cavity and the rear side wall of the smoke collecting cavity, the first installation space is located below the first guide plate and is provided with first sound absorbing cotton, and a first through hole for communicating the smoke inlet cavity and the first sound absorbing cotton is formed in the rear side wall of the smoke inlet cavity. The structure of above-mentioned first guide plate provides installation space for the cotton setting of first sound absorption just, and with the cotton setting of first sound absorption here, can reduce the noise that oil smoke and smoke inlet cavity back wall striking formed.

Preferably, a second guide plate which is arranged in a forward inclining mode gradually is arranged at the upper end of the front side wall of the smoke inlet cavity from bottom to top, edges of two sides of the second guide plate respectively abut against the inner end wall of the mounting cavity, and the upper end of the second guide plate abuts against the inner front wall of the mounting cavity. Preferably, the lower end of the second guide plate is provided with an arc-shaped guide surface which enables the front side wall of the smoke inlet cavity and the main body part of the second guide plate to be in smooth transition. The structure is favorable for guiding the oil smoke at the joint of the smoke inlet cavity and the mounting cavity, and avoids energy loss caused by vortex formed by the oil smoke at the joint.

Further preferably, install the second on the lower wall of second guide plate and inhale the sound cotton, just it has the second through-hole that supplies installation cavity and second to inhale the sound cotton and be linked together to open on the second guide plate. The second sound-absorbing cotton can reduce the noise generated by the oil smoke at the second guide plate.

Preferably, the front side wall of the smoke inlet cavity is externally provided with a third sound-absorbing cotton, and the front side wall of the smoke inlet cavity is provided with a third through hole for communicating the smoke inlet cavity with the third sound-absorbing cotton. The structure is beneficial to reducing the noise formed by the collision of the oil smoke and the front wall of the smoke inlet cavity.

In order to facilitate the guiding of oil drops accumulated in the smoke ventilator, the lower end of the front side wall of the smoke inlet cavity is higher than the lower end of the rear side wall, a filter screen which gradually inclines downwards from front to back is installed at the smoke inlet, and an oil cup which is arranged close to the rear edge of the filter screen is arranged at the rear part of the lower end of the shell.

As an installation scheme of a fan system, the fan system is installed between the smoke collecting cavity and the installation cavity, the rear side of the fan system is close to the rear wall of the smoke collecting cavity and is arranged, the front side of the fan system is provided with a first main air suction opening, the rear side of the fan system is provided with a first auxiliary air suction opening, and the inner front wall of the installation cavity is provided with a fourth sound absorbing cotton.

As another installation scheme of the fan system, the fan system is installed in an installation cavity, the front side of the fan system is arranged close to the front wall of the installation cavity, the rear side of the fan system is provided with a second main air suction opening, and the front side of the fan system is provided with a second auxiliary air suction opening.

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 underlying smoke inlet is directly communicated with the vertically arranged smoke inlet cavity, and the direction of the oil smoke at the smoke inlet 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 reduced.

Drawings

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

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

FIG. 3 is a cross-sectional view at another angle to FIG. 1;

fig. 4 is a schematic view of the internal structure of embodiment 1 of the present invention;

fig. 5 is a schematic view of the internal structure of embodiment 2 of the present invention.

Detailed Description

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

Example 1:

as shown in fig. 1 to 4, 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 front side wall of the smoke inlet cavity 11 of this embodiment is inclined forward gradually from top to bottom, and the lower port of the smoke inlet cavity 11 forms a smoke inlet 111 of the range hood. The rear side wall of the smoke inlet cavity 11 is located at the front side of the rear side wall of the smoke collection cavity 12, and a first guide plate 100 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 collection 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. A first installation space 101 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 collection cavity 12, the first installation space 101 is positioned below the first guide plate 100 and is provided with first sound absorption cotton 102, and the rear side wall of the smoke inlet cavity 11 is provided with a first through hole 103 for communicating the smoke inlet cavity 11 with the first sound absorption cotton 102. The structure of the first baffle 100 just provides an installation space for the first sound absorbing cotton 102, and the first sound absorbing cotton 102 is arranged at the position, so that the noise caused by the collision of the oil smoke and the rear wall of the smoke inlet cavity 11 can be reduced.

The upper end of the front side wall of the smoke inlet cavity 11 of this embodiment is provided with a second guide plate 200 which is arranged to incline forwards gradually from bottom to top, two side edges of the second guide plate 200 respectively abut against the inner end wall of the installation cavity 11, and the upper end of the second guide plate 200 abuts against the inner front wall of the installation cavity 13. The lower end of the second guide plate 200 is formed with an arc guide surface 201 which enables the front side wall of the smoke inlet cavity 11 to smoothly transit with the main body of the second guide plate 200. The structure is favorable for guiding the oil smoke at the joint of the smoke inlet cavity 11 and the mounting cavity 13, and energy loss caused by vortex formed by the oil smoke at the joint is avoided. The second guide plate 200 is provided with a second sound-absorbing cotton 202 on the lower wall surface, and the second guide plate 200 is provided with a second through hole 203 for communicating the installation cavity 13 with the second sound-absorbing cotton 202. The second sound-absorbing cotton 202 can reduce the noise generated by the oil smoke at the second flow guide plate 200.

The third sound-absorbing cotton 300 is arranged outside the front side wall of the smoke inlet cavity 11, and the front side wall of the smoke inlet cavity 11 is provided with a third through hole 104 for communicating the smoke inlet cavity 11 with the third sound-absorbing cotton 300. The structure is beneficial to reducing the noise formed by the collision of the oil smoke and the front wall of the smoke inlet cavity 11. In order to guide oil drops accumulated in the smoke ventilator conveniently, the lower end of the front side wall of the smoke inlet cavity 11 is higher than the lower end of the rear side wall, a smoke inlet 111 is provided with an oil filter screen 3 which is gradually inclined downwards from front to back, and the rear part of the lower end of the shell 1 is provided with an oil cup 4 which is arranged close to the rear edge of the oil filter screen 3.

As shown in fig. 4, the fan system 2 of the present embodiment is installed between the smoke collection cavity 12 and the installation cavity 13, and the rear side of the fan system 2 is disposed near the rear wall of the smoke collection cavity 12, the front side of the fan system 2 has a first main air suction opening 21, the rear side of the fan system 2 has a first auxiliary air suction opening 22, and the inner front wall of the installation cavity 13 is provided with a fourth sound absorbing cotton 400. When the main air inlet of fan system 2 was located the rear side, left over very big installation space in the installation cavity 13, be used for installing the fourth just and inhale sound cotton 400 to hinder the produced noise propagation of fan system 2, noise reduction.

Example 2:

this example differs from example 1 in that: as shown in fig. 5, the installation position of the fan system 2' is different. The fan system 2 'of the present embodiment is installed in the installation cavity 13', and the front side of the fan system 2 'is disposed near the front wall of the installation cavity 13', and the rear side of the fan system 2 'has a second main air suction opening 21', and the front side of the fan system 2 'has a second auxiliary air suction opening 22'.

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 the smoke inlet chamber (11) of vertical extension, 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), the preceding lateral wall top-down of smoke inlet chamber (11) slopes forward gradually, the lower port that advances smoke chamber (11) constitutes smoke inlet (111) of range hood.

2. The range hood of claim 1, 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 first guide plate (100) 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).

3. The range hood of claim 2, wherein: a first installation space (101) is formed between the planes of the rear side wall of the smoke inlet cavity (11) and the rear side wall of the smoke collecting cavity (12), the first installation space (101) is located below the first guide plate (100) and is provided with first sound absorbing cotton (102), and a first through hole (103) for communicating the smoke inlet cavity (11) and the first sound absorbing cotton (102) is formed in the rear side wall of the smoke inlet cavity (11).

4. The range hood of claim 1, wherein: the upper end of the front side wall of the smoke inlet cavity (11) is provided with a second guide plate (200) which is gradually and forwardly inclined from bottom to top, the edges of two sides of the second guide plate (200) are respectively abutted against the inner end wall of the mounting cavity (13), and the upper end of the second guide plate (200) is abutted against the inner front wall of the mounting cavity (13).

5. The range hood of claim 4, wherein: the lower end of the second guide plate (200) is provided with an arc-shaped guide surface (201) which can enable the front side wall of the smoke inlet cavity (11) and the main body part of the second guide plate (200) to be in smooth transition.

6. The range hood of claim 4, wherein: install the second on the lower wall of second guide plate (200) and inhale sound cotton (202), just it has second through-hole (203) that supply installation cavity (13) and second to inhale sound cotton (202) and be linked together to open on second guide plate (200).

7. The range hood according to any one of claims 1 to 6, wherein: the front side wall of the smoke inlet cavity (11) is externally provided with a third sound-absorbing cotton (300), and the front side wall of the smoke inlet cavity (11) is provided with a third through hole (104) for communicating the smoke inlet cavity (11) with the third sound-absorbing cotton (300).

8. The range hood according to any one of claims 1 to 6, wherein: the lower end of the front side wall of the smoke inlet cavity (11) is higher than the lower end of the rear side wall, a smoke filtering net (3) which gradually inclines downwards from front to back is installed at the smoke inlet (111), and an oil cup (4) which is arranged close to the rear edge of the smoke filtering net (3) is arranged at the rear part of the lower end of the shell (1).

9. The range hood according to any one of claims 1 to 6, wherein: fan system (2) are installed between collection smoke chamber (12) and installation cavity (13), just the rear side of fan system (2) is close to the back wall arrangement of collection smoke chamber (12), the front side of fan system (2) has first main inlet scoop (21), the rear side of fan system (2) has first supplementary inlet scoop (22), just it inhales sound cotton (400) to be provided with the fourth on the interior antetheca of installation cavity (13).

10. The range hood according to any one of claims 1 to 6, wherein: the fan system (2 ') is installed in the installation cavity (13'), the front side of the fan system (2 ') is arranged close to the front wall of the installation cavity (13'), the rear side of the fan system (2 ') is provided with a second main air suction opening (21'), and the front side of the fan system (2 ') is provided with a second auxiliary air suction opening (22').