CN111156555B

CN111156555B - Range hood and control method thereof

Info

Publication number: CN111156555B
Application number: CN202010031334.0A
Authority: CN
Inventors: 刘杰; 徐鑫; 陈浩辉
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-14
Filing date: 2020-01-13
Publication date: 2022-10-25
Anticipated expiration: 2040-01-13
Also published as: CN111156555A; CN212378032U

Abstract

The invention relates to a range hood and a control method thereof, the range hood comprises a shell and a fan system arranged in the shell, the lower part of the shell is provided with a vertically extending smoke inlet cavity, the front side wall of the lower part of the shell is provided with a smoke inlet communicated with the smoke inlet cavity, the upper part of the shell is provided with a smoke collection cavity communicated with the smoke inlet cavity, the smoke collection cavity extends forwards to form an installation cavity for installing the fan system, an air inlet of the fan system is communicated with the smoke collection cavity, and the bottom of the installation cavity is provided with a first illumination assembly for illuminating downwards. The back wall of the shell of the range hood is mounted by wall hanging, and the smoke inlet cavity at the lower part of the shell extends vertically, so that the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, and the smoke is quickly sucked into the smoke inlet cavity to be discharged upwards as soon as the smoke is generated, thereby improving the smoke suction effect; the appearance of cooperation range hood, the straight following formula illumination can be realized to the first lighting assembly who sets up in installation cavity bottom, improves illuminating effect, facilitates for the user.

Description

Range hood and control method thereof

Technical Field

The invention relates to a range hood and a control method thereof.

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 upper-exhaust 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, the existing near-suction range hood cannot better approach oil smoke, and the oil smoke absorption effect of the near-suction range hood is limited to a great extent.

In addition, when cooking is carried out at night, the cooking condition can not be clearly observed because the illumination angle of the kitchen can not be concentrated at the cooker. In order to solve the problem, the structure of installing the lighting lamp has appeared on the existing range hood, but to the range hood that can contact the oil smoke closely, the range hood is limited by the appearance, and the direct type effective lighting structure is difficult to install, resulting in poor lighting effect, and can not satisfy the consumer demand.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a range hood capable of providing direct illumination to improve the illumination effect, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a control method of the above range hood, aiming at the current situation of the prior art, the control method can adjust the illumination brightness according to the requirement to meet the illumination requirement.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes the casing and locates the fan system in this casing, its characterized in that: the utility model discloses a fan system, including casing, casing lower part, the casing lower part has the smoke inlet chamber of vertical extension, it has the smoke inlet that is linked together with this smoke inlet chamber to open on the preceding lateral wall of casing lower part, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the forward extension of collection smoke chamber forms the installation cavity that is used for installing fan system, fan system's air intake is linked together with collection smoke chamber, the bottom of installation cavity is provided with the first lighting component who is used for the illumination of below.

As a modification, a smoke baffle extending forwards horizontally or obliquely is arranged along the upper edge of the smoke inlet, and a second lighting assembly arranged close to the upper edge of the smoke inlet is arranged on the lower side of the smoke baffle. The first lighting assembly is mainly used for lighting a cooking area, but for the range hood type of the range hood, if the smoke baffle plate is arranged, light rays of the first lighting assembly can be shielded to a certain degree, and the lighting effect is influenced; after setting up above-mentioned second lighting assembly, can compensate the problem that first lighting assembly light is blockked, for the regional good illuminating effect that provides of culinary art, simultaneously, second lighting assembly can also provide the illumination near advancing the mouth, and convenient to use person cleans near advancing the mouth.

Preferably, a first smoke guide plate which is inclined backwards gradually from top to bottom is arranged at the upper edge of the smoke inlet, and the second lighting assembly is arranged on the first smoke guide plate. The first smoke guide plate and the smoke baffle plate can jointly form an airflow buffer area to reduce the speed of quickly rising oil smoke, so that the oil smoke is sucked away and quickly discharged after generating short-time flow bypassing after entering the smoke inlet cavity through the smoke inlet, the oil smoke suction effect is improved, and the pneumatic noise at the smoke inlet is reduced; the second lighting assembly is installed to the inclination structure that utilizes first smoke deflector, and the installation of not only being convenient for also can be for second lighting assembly provides better illumination angle, improves illuminating effect.

Preferably, the second lighting assembly is mounted on the back of the first smoke guide plate, the first smoke guide plate is provided with a first opening for the partial embedding of the second lighting assembly, and the front side wall of the second lighting assembly is basically aligned with the front side wall of the first smoke guide plate. By adopting the structure, the adverse effect of the installation of the second lighting assembly on the smoke guide effect is avoided.

Further preferably, the lower edge of the first smoke guide plate is connected with a second smoke guide plate which gradually inclines upwards from front to back. The second guide plate can further play a role in guiding the oil smoke.

Preferably, the included angle between the second smoke guide plate and the front side wall of the smoke inlet cavity is alpha, and alpha is more than or equal to 15 degrees and less than or equal to 70 degrees. The distance between the joint of the first smoke guide plate and the second smoke guide plate and the rear wall in the smoke inlet cavity is s, the height of the second smoke guide plate in the vertical direction is h, and h multiplied by sin alpha is more than or equal to 2 and less than or equal to s/2. By adopting the design, vortex formation is avoided, the oil fume suction effect is improved, and the noise is reduced.

In each scheme, a first sensor capable of detecting the illumination brightness of a cooking area is arranged below the range hood, and a second sensor capable of detecting the illumination brightness near the smoke inlet is arranged at the smoke inlet.

Preferably, the lower part of the smoke inlet cavity is provided with a guide plate which gradually inclines upwards from front to back, the lower edge of the guide plate is arranged corresponding to the smoke inlet, the upper edge of the guide plate is arranged close to the rear side wall of the smoke inlet cavity, and the second sensor is arranged on the guide plate. The guide plate prevents the oil smoke from diffusing in the bottom area of the rear plate of the smoke inlet cavity after the oil smoke enters the smoke inlet cavity, so that the travel of the oil smoke at the bottom of the smoke inlet cavity is reduced, the oil smoke is directly arranged along the guide plate, and meanwhile, the integral inclined plane structure of the guide plate enables the oil smoke to flow more stably relative to the bent surface at the bottom of the smoke inlet cavity, so that the oil smoke absorption effect is improved; the second sensor is arranged on the guide plate, so that the assembly is facilitated, and the illumination intensity at the smoke inlet can be more accurately detected.

A control method using the range hood is characterized in that:

s1: starting the range hood;

s2: setting an illumination brightness value a as illumination brightness of an object which can be seen clearly by human eyes, acquiring an illumination brightness signal m of a cooking area by a first sensor, acquiring an illumination brightness signal n of a smoke inlet accessory by a second sensor, transmitting the illumination brightness signal n to a controller, and comparing the illumination brightness signal m with the illumination brightness value a;

s3: if m > a and n > a, turning off the first lighting assembly and turning off the second lighting assembly;

if m is more than a and n is less than a, the first lighting assembly is closed, and the second lighting assembly is opened;

if m < a, n < a, the first lighting assembly is turned on, and the second lighting assembly is turned on.

Compared with the prior art, the invention has the advantages that: the back wall of the shell of the range hood is mounted by wall hanging, and the smoke inlet cavity at the lower part of the shell extends vertically, so that 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 quickly sucked into the smoke inlet cavity to be discharged upwards as soon as the smoke is generated, and the smoke suction effect is improved; the appearance of cooperation range hood, the straight following formula illumination can be realized to first lighting assembly who sets up in installation cavity bottom, improves the illuminating effect, facilitates for the user.

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 schematic view of the position structure of the smoke inlet cavity and the first smoke guide plate and the second smoke guide plate in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a use state of the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the range hood of the present embodiment includes a housing 1 and a fan system disposed in the housing 1. The lower part of the shell 1 is provided with a vertically extending smoke inlet cavity 11, the front side wall of the lower part of the shell 1 is provided with a smoke inlet 111 communicated with the 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 a fan system, it should be noted that the mounting cavity 13 is used for mounting the fan system, but the mounting position of the fan system is not completely limited in the mounting cavity 13, and the smoke collecting cavity 12 and the mounting cavity 13 are integrated, so that when the fan system is mounted, the part of the fan system can be positioned in the smoke collecting cavity 12 according to requirements. The air inlet of the fan system can be arranged in advance or backwards, and is only communicated with the smoke collection cavity 12, and the air outlet of the fan system is arranged upwards. 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.

In this embodiment, range hood's overall configuration makes installation cavity 13 bottom vacant, and advances the part of smoke chamber 11 and can not lead to the fact the bottom of installation cavity 13 to shelter from, and this embodiment has set up the first lighting assembly 5 that is used for illumination downwards in installation cavity 13 bottom to direct type illumination has been realized, lighting effect has been improved, facilitates for the user. The upper part of the shell 1 is provided with a fan frame 14 for installing the fan system 2 and a fan outer cover 15 covering the fan frame 14, and the first lighting assembly 5 is arranged at the bottom of the fan outer cover 15.

The present embodiment is provided with a smoke barrier 3 extending horizontally or obliquely forward along the upper edge of the smoke inlet 111, and the lower side of the smoke barrier 3 is provided with a second lighting assembly 6 arranged near the upper edge of the smoke inlet. The first lighting assembly 5 is mainly used for lighting a cooking area, and the smoke baffle plate 3 is mainly used for providing a smoke gathering effect, but for the range hood model of the embodiment, if the smoke baffle plate 3 is arranged, light rays of the first lighting assembly 5 can be shielded to a certain extent, and the lighting effect is influenced; after setting up above-mentioned second lighting assembly 6, can compensate the problem that 5 light of first lighting assembly are blockked, for the regional good illuminating effect that provides of culinary art, simultaneously, second lighting assembly 6 can also provide the illumination near advancing smoke mouth 111, and convenient to use person cleans near advancing smoke mouth 111.

Specifically, a first smoke guide plate 112 which gradually inclines backwards from top to bottom is arranged at the upper edge of the smoke inlet 111, and the second lighting assembly 6 is arranged on the first smoke guide plate 112. The first smoke guide plate 112 and the smoke baffle plate 3 can form an airflow buffer area together to reduce the speed of the quickly rising oil smoke, so that the oil smoke is sucked away and quickly discharged after generating short-time flow bypassing after entering the smoke inlet cavity 11 through the smoke inlet 111, thereby improving the oil smoke suction effect and reducing the pneumatic noise at the smoke inlet 111; the second lighting assembly 6 is installed by utilizing the inclination structure of the first smoke guide plate 112, so that the installation is convenient, a better lighting angle can be provided for the second lighting assembly 6, and the lighting effect is improved. The second lighting assembly 6 is mounted on the back of the first smoke guide plate 112, the first smoke guide plate 112 is provided with a first opening 1121 for partially embedding the second lighting assembly 6 therein, and the front side wall of the second lighting assembly 6 is substantially aligned with the front side wall of the first smoke guide plate 112, so as to avoid the adverse effect of the mounting of the second lighting assembly 6 on the smoke guide effect.

In this embodiment, a second smoke guide plate 113 which is inclined upward gradually from front to back is connected to the lower edge of the first smoke guide plate 112, and the second smoke guide plate 113 can further guide the oil smoke. The included angle between the second smoke guide plate 113 and the front side wall of the smoke inlet cavity 11 is alpha, and alpha is more than or equal to 15 degrees and less than or equal to 70 degrees. The distance between the joint of the first smoke guide plate 112 and the second smoke guide plate 113 and the inner rear wall of the smoke inlet cavity 11 is s, the height of the second smoke guide plate 113 in the vertical direction is h, and h is more than or equal to 2 and less than or equal to 2, multiplied by sin alpha and less than or equal to s/2. By adopting the design, vortex formation is avoided, the oil fume suction effect is improved, and the noise is reduced.

The range hood of the embodiment may be provided with a first sensor 10 on the cooking bench, which can detect the illumination brightness of the cooking area, and a second sensor 20, which can detect the illumination brightness near the smoke inlet 111, is provided at the smoke inlet 111. The lower part of the smoke inlet cavity 11 is provided with a guide plate 7 which gradually inclines upwards from front to back, the lower edge of the guide plate 7 is arranged corresponding to the smoke inlet 111, the upper edge of the guide plate 7 is arranged close to the rear side wall of the smoke inlet cavity 11, and the second sensor 20 is arranged in the middle of the guide plate 7. The guide plate 7 prevents the oil smoke from diffusing in the bottom area of the rear plate of the smoke inlet cavity 11 after the oil smoke enters the smoke inlet cavity, so that the travel of the oil smoke at the bottom of the smoke inlet cavity is reduced, the oil smoke is directly arranged along the guide plate, and meanwhile, the integral inclined plane structure of the guide plate 7 enables the oil smoke to flow more stably relative to the bending surface at the bottom of the smoke inlet cavity 11, so that the oil smoke absorption effect is improved; the second sensor 20 is arranged on the guide plate, so that the assembly is convenient, and the illumination intensity at the smoke inlet 111 can be more accurately detected.

The cigarette blocking plate 3 of the embodiment is arranged on the shell 1 in a turnover manner, the upper edge of the cigarette blocking plate 3 can be rotatably connected to the shell through the driving mechanism, the cigarette blocking plate 3 can provide a cigarette gathering effect when opened, the cigarette blocking plate 3 can be closed to close the cigarette inlet 111, and the cigarette blocking plate is attractive on the whole.

The control method of the range hood applied in the embodiment comprises the following steps:

s1: starting the range hood, and turning over the smoke baffle 3;

s2: setting an illumination brightness value a as the illumination brightness of objects which can be seen clearly by human eyes, acquiring an illumination brightness signal m of a cooking area by a first sensor 10, acquiring an illumination brightness signal n of an accessory of a smoke inlet 111 by a second sensor 20, transmitting the illumination brightness signal n to a controller, and comparing the illumination brightness signal n with the illumination brightness value a;

s3: if m is more than a and n is more than a, the first lighting assembly 5 is kept closed, the second lighting assembly 6 is kept closed, and the cooking area and the vicinity of the smoke inlet 111 can be seen clearly, so that the cooking requirement, the cleaning requirements of the vicinity of the smoke inlet 111 and the guide plate 7 are met;

if m > a, n < a, keeping the first lighting assembly 5 off and turning the second lighting assembly 6 on;

if m < a, n < a, the first lighting assembly 5 is turned on, the second lighting assembly 6 is turned on.

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: the fan is characterized in that a vertically extending smoke inlet cavity (11) is formed in the lower portion of the shell (1), a smoke inlet (111) communicated with the smoke inlet cavity (11) is formed in the front side wall of the lower portion of the shell (1), a smoke collecting cavity (12) communicated with the smoke inlet cavity (11) is formed in the upper portion of the shell (1), the smoke collecting cavity (12) extends forwards to form a mounting cavity (13) used for mounting a fan system (2), an air inlet (111) of the fan system (2) is communicated with the smoke collecting cavity (12), and a first lighting assembly (5) used for lighting downwards is arranged at the bottom of the mounting cavity (13);

a smoke baffle plate (3) extending forwards horizontally or obliquely is arranged along the upper edge of the smoke inlet (111), and a second lighting assembly (6) arranged close to the upper edge of the smoke inlet (111) is arranged on the lower side of the smoke baffle plate (3); a first smoke guide plate (112) which gradually inclines backwards from top to bottom is arranged at the upper edge of the smoke inlet (111), and the second lighting assembly (6) is arranged on the first smoke guide plate (112); the slope structure of the first smoke guide plate (112) is used for installing a second lighting assembly (6), and the front side wall of the second lighting assembly (6) is basically aligned with the front side wall of the first smoke guide plate (112);

the first smoke guide plate (112) and the smoke baffle plate (3) jointly form an airflow buffer area to reduce the speed of rapidly rising oil smoke, so that the oil smoke is sucked away and rapidly discharged after generating short-term streaming after entering the smoke inlet cavity (11) through the smoke inlet (111); the lower part of the smoke inlet cavity (11) is provided with a guide plate (7) which gradually inclines upwards from front to back, the lower edge of the guide plate (7) is arranged corresponding to the smoke inlet (111), and the upper edge of the guide plate (7) is arranged close to the rear side wall of the smoke inlet cavity (11);

a first sensor (10) capable of detecting the illumination brightness of a cooking area is arranged below the range hood, and a second sensor (20) capable of detecting the illumination brightness near the smoke inlet (111) is arranged at the smoke inlet (111); the second sensor (20) is arranged on the guide plate (7).

2. The range hood of claim 1, wherein: the second lighting assembly (6) is arranged on the back of the first smoke guide plate (112), a first opening (1121) for partially embedding the second lighting assembly (6) is formed in the first smoke guide plate (112), and the front side wall of the second lighting assembly (6) is basically aligned with the front side wall of the first smoke guide plate (112).

3. The range hood of claim 1, wherein: the lower edge of the first smoke guide plate (112) is connected with a second smoke guide plate (113) which is gradually inclined upwards from front to back.

4. The range hood of claim 3, wherein: the included angle between the second smoke guide plate (113) and the front side wall of the smoke inlet cavity (11) is alpha, and alpha is more than or equal to 15 degrees and less than or equal to 70 degrees.

5. The range hood of claim 4, wherein: the distance from the joint of the first smoke guide plate (112) and the second smoke guide plate (113) to the inner rear wall of the smoke inlet cavity (11) is s, the height of the second smoke guide plate (113) in the vertical direction is h,2 is more than or equal to 2 and more than or equal to 2

sinα≤s/2。

6. A control method of the range hood as claimed in any one of claims 1 to 5, wherein:

s1: starting the range hood;

s2: setting an illumination brightness value a as the illumination brightness of an object which can be seen clearly by human eyes, collecting an illumination brightness signal m of a cooking area by a first sensor (10), collecting an illumination brightness signal n of an accessory of a smoke inlet (111) by a second sensor (20), transmitting the illumination brightness signal n to a controller, and comparing the illumination brightness value with the illumination brightness value a;

s3: if m > a, n > a, the first lighting assembly (5) is switched off, the second lighting assembly (6) is switched off;

if m > a, n < a, the first lighting assembly (5) is switched off, the second lighting assembly (6) is switched on;

if m < a, n < a, the first lighting assembly (5) is turned on, the second lighting assembly (6) is turned on.