CN210861274U

CN210861274U - Fume exhaust fan

Info

Publication number: CN210861274U
Application number: CN201921440435.2U
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: CN211625391U; CN212378031U; CN111435004A; CN211822584U; CN111006291A; CN210399059U; CN210861257U; CN211372529U; CN210861270U; CN111023221A; CN211822557U; CN210662985U; CN212378029U; CN210861258U; CN210662986U; CN211372530U; CN211625390U; CN211119553U; CN211119554U; CN211119552U

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 corresponds about and communicate each other with smoke inlet chamber, and 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 lower part inclines gradually backward and forms the inclined plane, and this inclined plane lower part is opened has the smoke inlet that is linked together with smoke inlet chamber. 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 front side wall of the lower part of the smoke inlet cavity is gradually inclined backwards from top to bottom to form an inclined plane, the smoke inlet is arranged at the lower part of the inclined plane, and the inclined plane can generate a flow guiding effect on the oil smoke when the oil smoke enters the smoke inlet cavity through the smoke inlet, so that a large amount of eddy current is prevented from being formed at the smoke inlet, the pneumatic noise at the smoke inlet is reduced, and the oil smoke absorption effect is further improved.

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.

For the vertically arranged smoke inlet duct, if the smoke inlet is positioned at the front side of the smoke inlet duct and is vertically arranged with the smoke inlet duct, when rising oil smoke enters the smoke inlet duct from the smoke inlet, vortex flow is formed at the inner wall of the inlet of the smoke inlet duct 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, thereby provides one kind and can cushion the entry oil smoke and avoid the vortex to form and then improve range hood of oil absorption cigarette effect, noise reduction.

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 casing lower part has the smoke inlet chamber of vertical extension, casing upper portion has the collection smoke chamber that corresponds and communicate each other from top to bottom with smoke inlet chamber, collection smoke chamber extends forward and forms the installation cavity that is used for installing fan system, the preceding lateral wall of smoke inlet chamber lower part inclines gradually backward from top to bottom and forms the inclined plane, and this inclined plane lower part is opened has the mouth of advancing the cigarette that is linked together with smoke inlet chamber.

Preferably, the front side of the inclined plane is provided with a smoke baffle plate which is arranged along the upper edge of the smoke inlet and extends forwards and backwards, and the rear edge of the smoke baffle plate is arranged corresponding to the middle upper part of the inclined plane and is positioned below the upper edge of the inclined plane. By adopting the structure, the smoke baffle can block the rising oil smoke, and simultaneously forms a negative pressure area with the smoke inlet cavity to collect and discharge the blocked oil smoke, thereby being beneficial to improving the whole oil smoke absorption effect of the range hood; and the arrangement position of the smoke baffle plate can be matched with the structure of the inclined plane, so that the generation of vortex at the smoke inlet is reduced.

Preferably, a first sound absorption cotton is arranged on the rear wall of the upper part of the smoke inlet cavity to reduce noise.

Preferably, the upper edge of the first sound absorption cotton is arranged close to the upper port of the smoke inlet cavity, the lower edge of the first sound absorption cotton is arranged corresponding to the upper edge of the smoke baffle, the front wall of the first sound absorption cotton is provided with a first part which is gradually inclined forwards from bottom to top and a second part which is connected above the first part, and the second part is gradually inclined backwards from bottom to top. The structure is favorable for guiding the flow direction of the oil smoke.

Preferably, the smoke collecting cavity and the mounting cavity are internally provided with porous filter cotton capable of separating the smoke collecting cavity from the smoke inlet cavity, the porous filter cotton is made of materials such as resin and the like through a foaming process, is a porous material with high adsorption performance, and is beneficial to adsorbing large particles in oil smoke, reducing the load of a fan system and improving the oil smoke absorption effect.

Preferably, the fan system is arranged in the smoke collecting cavity and the installation cavity and close to the rear wall of the smoke collecting cavity, the air inlet of the fan system is arranged forward, and the second sound absorbing cotton is arranged on the inner front wall of the installation cavity. The arrangement position of fan system inhales the sound cotton for the second and provides installation space, and this second is inhaled the sound cotton and has been hindered the front and back propagation of fan system noise to play better noise reduction.

As an improvement, the inner bottom wall of the installation cavity is gradually arranged downwards from front to back, the porous filter cotton is shaped into a flat plate and is obliquely arranged from the front wall of the installation cavity to the back wall of the smoke collection cavity from top to bottom, and a flow guide channel capable of guiding fluid forwards is formed between the inner bottom wall of the installation cavity and the porous filter cotton. Due to the fact that the smoke inlet cavity is arranged below the smoke collecting cavity and the main air inlet of the fan system is located in the installation cavity, oil smoke can be guided at the upper end of the smoke inlet cavity by adopting the structure, most of the oil smoke enters the installation cavity through the guide channel, and is discharged from the air inlet through the fan system, and oil smoke suction effect is improved.

Preferably, the fan system is a double-air-inlet fan system, a main air inlet of the fan system is arranged forward, and an auxiliary air inlet of the fan system is arranged backward. And part of oil smoke is discharged through the auxiliary air inlet, so that the oil smoke absorption effect is further 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 front side wall of the lower part of the smoke inlet cavity is gradually inclined backwards from top to bottom to form an inclined plane, the smoke inlet is arranged at the lower part of the inclined plane, and the inclined plane can generate a flow guiding effect on the oil smoke when the oil smoke enters the smoke inlet cavity through the smoke inlet, so that a large amount of eddy current is prevented from being formed at the smoke inlet, the pneumatic noise at the smoke inlet is reduced, and the oil smoke absorption effect is further improved.

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 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. An oil collecting cup 4 with an upward opening is arranged at the lower edge of the shell 1, and the bottom of the smoke inlet cavity 11 is connected with the oil collecting cup 4. 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.

As shown in fig. 2 and 3, in the present embodiment, the front side wall of the lower portion of the smoke inlet cavity 11 is gradually inclined backwards from top to bottom to form an inclined plane 110, and the lower portion of the inclined plane 110 is provided with a smoke inlet 111 communicating with the smoke inlet cavity 11. The front side of the inclined plane 110 is provided with a smoke baffle 3 which is arranged along the upper edge of the smoke inlet 111 and extends forwards and backwards, and the rear edge of the smoke baffle 3 is arranged corresponding to the middle upper part of the inclined plane 110 and is positioned below the upper edge of the inclined plane 110. By adopting the structure, the smoke baffle 3 can block the oil smoke rising upwards, and simultaneously forms a negative pressure area with the smoke inlet cavity 11 to collect and discharge the blocked oil smoke, thereby being beneficial to improving the whole oil smoke absorption effect of the range hood; moreover, the arrangement position of the smoke baffle 3 can be matched with the structure of the inclined plane 110, so that the generation of vortex at the smoke inlet 111 is reduced.

The rear wall of the upper part of the smoke inlet cavity 11 of the embodiment is provided with a first sound absorption cotton 5 to reduce noise. The upper edge of the first sound absorption cotton 5 is arranged close to the upper port of the smoke inlet cavity 11, the lower edge of the first sound absorption cotton 5 is arranged corresponding to the upper edge of the smoke baffle 3, the front wall of the first sound absorption cotton 5 is provided with a first part 51 which is gradually inclined forwards from bottom to top and a second part 52 which is connected above the first part 51, and the second part 52 is gradually inclined backwards from bottom to top. The smoke collecting cavity 12 and the mounting cavity 13 are provided with porous filter cotton 6 capable of separating the smoke collecting cavity from the smoke inlet cavity 11, the porous filter cotton 6 is made of materials such as resin through a foaming process, is a porous material with strong adsorption performance, and is beneficial to adsorbing large particles in oil smoke, reducing the load of a fan system and improving the oil smoke absorption effect. The porous filter cotton 6 is detachably arranged in the smoke collecting cavity 12 and the mounting cavity 13 through a bracket 61 so as to be convenient to periodically replace and clean. The fan system 2 is arranged in the smoke collection cavity 12 and the installation cavity 13 and is arranged close to the rear wall of the smoke collection cavity 12, the fan system 2 is a double-air-inlet fan system, a main air inlet 21 of the fan system 2 is arranged forwards, and an auxiliary air inlet 22 of the fan system 2 is arranged backwards. The inner front wall of the mounting cavity 13 is provided with a second sound-absorbing cotton 7. The first part 51 and the second part 52 of the first sound absorption cotton 5 are smoke guide structures corresponding to the main air inlet 21 and the auxiliary air inlet 22, respectively, and can cooperate with the inner wall of the smoke inlet cavity 11 to guide the circulation direction of the oil smoke.

In this embodiment, the inner bottom wall of the installation cavity 13 is arranged to be gradually inclined downwards from front to back, the porous filter cotton 6 is shaped into a flat plate and is arranged to be inclined from top to bottom from the front wall of the installation cavity 13 to the back wall of the smoke collecting cavity 12, and a flow guide channel 130 capable of guiding the fluid forwards is formed between the inner bottom wall of the installation cavity 13 and the porous filter cotton 6. Because the smoke inlet cavity 11 is arranged corresponding to the lower part of the smoke collection cavity 12, and the main air inlet 21 of the fan system 2 is positioned in the installation cavity 13, by adopting the structure, the oil smoke can be guided at the upper end of the smoke inlet cavity 11, so that most of the oil smoke enters the installation cavity 13 through the guide channel 130, and is discharged from the main air inlet 21 through the fan system 2, and part of the oil smoke is discharged through the auxiliary air inlet 22, thereby improving the oil smoke absorption effect.

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 correspond and communicate each other from top to bottom 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 that smoke inlet chamber (11) lower part inclines gradually backward and forms inclined plane (110), and this inclined plane (110) lower part is opened has smoke inlet (111) that are linked together with smoke inlet chamber (11).

2. The range hood of claim 1, wherein: the front side of the inclined plane (110) is provided with a smoke baffle plate (3) which is arranged along the upper edge of the smoke inlet (111) and extends forwards and backwards, and the rear edge of the smoke baffle plate (3) is arranged corresponding to the middle upper part of the inclined plane (110) and is positioned below the upper edge of the inclined plane (110).

3. The range hood of claim 2, wherein: the rear wall of the upper part of the smoke inlet cavity (11) is provided with a first sound absorption cotton (5).

4. The range hood of claim 3, wherein: the upper end mouth that the last border of first sound absorption cotton (5) is close to into cigarette chamber (11) is arranged, the last border that the lower border of first sound absorption cotton (5) corresponds cigarette board (3) is arranged, just the antetheca of first sound absorption cotton (5) has first part (51) that leans forward gradually from bottom to top and connects in second part (52) above this first part (51), and this second part (52) are leaned backward gradually from bottom to top and are arranged.

5. The range hood according to any one of claims 1 to 4, wherein: porous filter cotton (6) capable of separating the smoke collection cavity (12) and the smoke inlet cavity (11) is arranged in the smoke collection cavity (12) and the installation cavity (13).

6. The range hood of claim 5, wherein: fan system (2) are located in collection smoke chamber (12) and installation cavity (13) and are close to the back wall of collection smoke chamber (12) and arrange, the air intake of fan system (2) arranges forward, be provided with the second on the interior antetheca of installation cavity (13) and inhale sound cotton (7).

7. The range hood of claim 6, wherein: the inner bottom wall of the installation cavity (13) is gradually arranged from front to back in a downward inclined mode, the porous filter cotton (6) is shaped into a flat plate shape and is arranged from the front wall of the installation cavity (13) to the back wall of the smoke collecting cavity (12) in an upward inclined mode, and a flow guide channel (130) capable of guiding fluid forwards is formed between the inner bottom wall of the installation cavity (13) and the porous filter cotton (6).

8. The range hood of claim 6, wherein: the fan system (2) is a double-air-inlet fan system, a main air inlet (21) of the fan system (2) is arranged forwards, and an auxiliary air inlet (22) of the fan system (2) is arranged backwards.