CN113154483A

CN113154483A - Air inlet assembly and range hood with same

Info

Publication number: CN113154483A
Application number: CN202110123394.XA
Authority: CN
Inventors: 陈玉龙
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-07-23

Abstract

The invention discloses an air inlet assembly, which comprises a panel, wherein an air inlet is formed in the panel, the air inlet comprises a first air inlet area and a second air inlet area which are arranged in parallel, and the air inlet assembly also comprises a baffle plate assembly and a moving mechanism; the baffle plate assembly comprises a first baffle plate and a second baffle plate; the motion mechanism comprises a driving mechanism and a transmission mechanism, and the transmission mechanism transmits the output of the driving mechanism to the first baffle and the second baffle; the transmission mechanism comprises a gear, a first rack arranged on the first baffle and a second rack arranged on the second baffle, and the gear is positioned between the first rack and the second rack which are oppositely arranged; the driving mechanism can be meshed with the first rack and the second gear through the gear, so that the first baffle can be moved to shelter from the first air inlet area or be moved to be staggered with the first air inlet area, or the second baffle can be moved to shelter from the second air inlet area or be moved to be staggered with the second air inlet area. Still disclose a range hood that uses and have above-mentioned air inlet subassembly.

Description

Air inlet assembly and range hood with same

Technical Field

The invention relates to an oil fume purification device, in particular to an air inlet component and an oil fume suction machine applying the air inlet component.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The side-suction type range hood absorbs most of oil smoke close to a cooking bench in an arc form by using a vortex air pressure principle, so that adverse effects on human health can be reduced, and the suction effect of a power source is basically not reduced because the power source is close to the cooking bench.

The range hood disclosed in chinese patent application No. 201820960220.2 includes a smoke collection chamber, a panel structure disposed at the front side of the smoke collection chamber, an oil filter plate disposed on the panel structure, a smoke barrier plate covering the oil filter plate and a driving device for driving the smoke barrier plate.

The air inlet of the existing range hood can only be in a state of being completely opened or completely closed through the movement of the smoke baffle plate, when a user cooks on one side, the air quantity of the range hood cannot be effectively utilized to effectively suck oil smoke, so that the range hood is easy to leak smoke during single-side cooking at a small gear, and the range hood is too loud in noise during a large gear and cannot efficiently and statically suck.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an air intake assembly for realizing high-efficiency smoking with low noise.

The second technical problem to be solved by the invention is to provide a range hood with the air inlet assembly.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides an air inlet subassembly, includes the panel, the air intake has been seted up on the panel, the air intake is regional including the first air inlet that arranges side by side and second air inlet, its characterized in that: the air inlet assembly also comprises a baffle plate assembly and a movement mechanism for driving the baffle plate assembly to act; the baffle plate assembly comprises a first baffle plate and a second baffle plate; the motion mechanism comprises a driving mechanism and a transmission mechanism, and the transmission mechanism transmits the output of the driving mechanism to the first baffle and the second baffle; the transmission mechanism comprises a gear driven by the driving mechanism to rotate, a first rack arranged on the first baffle and a second rack arranged on the second baffle, and the gear is positioned between the first rack and the second rack which are oppositely arranged; the driving mechanism can be meshed with the first rack and the second gear through the gear, so that the first baffle can move to shelter from the first air inlet area or move to stagger from the first air inlet area, or the second baffle can move to shelter from the second air inlet area or move to stagger from the second air inlet area.

In order to facilitate the matching of the gear and the two racks, the first rack is arranged on one side of the first baffle plate adjacent to the second baffle plate, and the second rack is arranged on one side of the second baffle plate adjacent to the first baffle plate; the first rack has a first tooth for meshing with the gear wheel, the second rack has a second tooth for meshing with the gear wheel, the first tooth is arranged on the side of the first rack facing the second rack, and the second tooth is arranged on the side of the second rack facing the first rack.

In order to reduce the movement space and make the stroke of the baffle plate as small as possible, the transmission mechanism further comprises a base fixedly connected with the panel, so that when one baffle plate moves towards the corresponding air inlet area, the other baffle plate can abut against the base to push the gear to move along with the moving baffle plate, and the gear keeps the trend of moving towards the direction far away from the air inlet.

For the baffle resets for being convenient for, drive mechanism still includes elastic component, bracing piece and along with gear rectilinear movement's casing, the gear setting is connected in the casing and rotates with the casing, the one end and the pedestal connection of bracing piece are fixed, the other end of bracing piece extends to the gear and penetrates in the casing, the elastic component cover is established on the bracing piece, the one end and the bracing piece of elastic component penetrate the tip butt in the casing, the other end of elastic component then with chassis bottom butt.

In order to guide the movement of the shell, the transmission mechanism further comprises a guide rod, a guide hole is formed in the shell, one end of the guide rod is fixedly connected with the base, and the other end of the guide rod penetrates into the shell, so that the linear movement of the shell is guided.

To facilitate driving the gear in rotation, the drive mechanism includes a motor and an output shaft that passes through the gear so as to drive the gear in rotation about the output shaft.

Preferably, the first baffle plate is sized to completely shield the first air inlet region, and the second baffle plate is sized to completely shield the second air inlet region.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an be applied to range hood as above air inlet subassembly, includes the casing, the panel sets up the front side at the casing, its characterized in that: baffle subassembly and motion set up the rear side in the panel orientation casing, the regional and second air inlet region of first air inlet is controlled and is set up side by side.

Further, in order to open and close the air inlet, the range hood further comprises a smoke baffle plate for opening and closing the air inlet from the front side of the panel.

Compared with the prior art, the invention has the advantages that: by arranging the movable baffle plate, the air inlet area corresponding to the baffle plate can be selectively opened or closed, and the reasonable distribution of the air inlet volume of the air inlet area is realized; when using among the range hood, when user unilateral culinary art, range hood starts the intake of non-culinary art side when the little gear to increase the air inlet speed of culinary art side oil smoke, realize the low noise, high-efficient smoking, when reducing the energy consumption, realize the silence and prevent to run the cigarette.

Drawings

Fig. 1 is a schematic view of a range hood in a closed state according to an embodiment of the present invention;

fig. 2 is a schematic view of the range hood in a fully opened state according to the embodiment of the present invention;

FIG. 3 is a schematic view of hidden parts of the range hood of FIG. 2;

FIG. 4 is a schematic view of the motion mechanism, baffle plate assembly of FIG. 3;

FIG. 5 is a cross-sectional view of FIG. 4 (with portions of the baffle hidden);

FIG. 6 is an exploded view of FIG. 4;

FIG. 7 is a schematic diagram of a right-opening state of the range hood according to the embodiment of the present invention;

FIG. 8 is a schematic view of a hidden part of the range hood of FIG. 7 in a right-open state;

FIG. 9 is a cross-sectional view of the motion mechanism, flapper assembly of FIG. 8 (concealing a portion of the flapper);

FIG. 10 is a schematic view of a range hood according to an embodiment of the present invention in a left-open state;

fig. 11 is a schematic view of a hidden part of the left-open state of the extractor hood of fig. 10;

fig. 12 is a cross-sectional view of the motion mechanism, flapper assembly of fig. 11 (concealing a portion of the flapper).

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are used for purposes of illustration and not for purposes of limitation, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, a range hood, which is a side-draft range hood, includes a housing 1 and a panel 2 disposed at the front side of the housing 1. An air inlet 21 is formed in the panel 2, and an oil screen assembly 3 is arranged at the air inlet 21. The panel 2 is inclined gradually backward from top to bottom. The fan system can be arranged in the shell 1, or the fan system can be arranged above the shell 1, and the structure can adopt the prior art.

The oil screen assembly 3 may be of an integral structure, or as shown in the present invention, includes a first oil screen 31 located on the left side and a second oil screen 32 located on the right side, where the first oil screen 31 and the second oil screen 32 are arranged side by side left and right, so that the air inlet 21 is correspondingly divided into a first air inlet area 211 located on the left side and a second air inlet area 212 located on the right side, and the first air inlet area 211 and the second air inlet area 212 together form a complete integral air inlet 21. Preferably, the first oil net 31 and the second oil net 32 have the same size, that is, the first air intake region 211 and the second air intake region 212 have the same size and have a completely symmetrical structure. The first oil screen 31 and the second oil screen 32 are preferably grid screens, but may be replaced by other types of existing oil screens. When the oil screen assembly 3 is not provided, the air inlet 21 may be divided into the first air inlet region 211 and the second air inlet region 212.

Referring to fig. 3 to 6, a baffle assembly and a moving mechanism for driving the baffle assembly to act are disposed in the housing 1 and behind the panel 2, and the panel 2, the baffle assembly and the moving mechanism form an air intake assembly. The baffle assembly includes a first baffle 41 and a second baffle 42, the first baffle 41 corresponds to the first air intake region 211, the second baffle 42 corresponds to the second air intake region 212, and the first baffle 41 and the second baffle 42 are parallel to the panel 2, respectively. The flapper assembly abuts the panel 2 with only a small gap for movement of the flapper assembly. The first baffle 41 and the second baffle 42 have the same structure, and preferably, both the first baffle 41 and the second baffle 42 have a rectangular shape, and the air inlet 21 has a rectangular shape. The length of the first baffle 41 is not less than the length of the first air intake region 211, the height of the first baffle 41 is not less than the height of the first air intake region 211, the length of the second baffle 42 is not less than the length of the second air intake region 212, and the height of the second baffle 42 is not less than the height of the second air intake region 212. The first shutter 41 can completely block the first intake area 211, and the second shutter 42 can completely block the second intake area 212.

Here, "length" refers to the dimension in the left-right direction shown in fig. 3, and "height" refers to the dimension in the up-down direction shown in fig. 3. The front, the back, the left, the right, the upper and the right are all the directions relative to the user when in use.

The moving mechanism can drive the first shutter 41 and the second shutter 42 to respectively and independently perform lifting movement in the direction of the inclined extension of the panel 2. The motion mechanism comprises a driving mechanism 51 and a transmission mechanism, the driving mechanism 51 comprises a motor 511 and an output shaft 512 in the embodiment, and the motor 511 can be replaced by other existing driving devices capable of outputting torque. The output shaft 512 of the driving mechanism 51 extends in the front-rear direction, and the output end of the motor 511 may be directly provided to extend in the same direction as the output shaft 512 and be directly connected thereto, or the output end of the motor 511 may be provided to extend in the left-right direction and be connected to the output shaft 512 through a transmission mechanism to realize the switching of the output direction. That is, the output shaft 512 may be directly or indirectly connected to the output end of the motor 511, as long as the output shaft 512 is finally extended in the front-rear direction, and the output shaft 512 can rotate around its axis by the driving of the motor 511.

In this embodiment, the first baffle 41 and the second baffle 42 are located at the rear side of the panel 2 and below the air inlet 21, and can move upward to shield the air inlet 21 and move downward to be staggered with the air inlet 21. In the invention, the term "shielding" means that the projection on the panel 2 and the air inlet area on the corresponding side have an overlapping area, and can be partially overlapped or completely overlapped; the term "staggered" means that the projection of the baffle on the panel 2 does not have an overlapping area with the air intake area on the corresponding side, and the air intake in the air intake area cannot be blocked. Alternatively, the driving mechanism 51 may be disposed at a position on the rear side of the panel 2 above the air inlet 21, and corresponding components of the transmission mechanism are also disposed at a position on the rear side of the panel 2 above the air inlet 21, so that the first baffle plate 41 and the second baffle plate 42 are located at positions on the rear side of the panel 2 above the air inlet 21 and can move downward to block the air inlet 21.

The transmission mechanism includes a first rack 544 and a second rack 545, the first rack 544 is disposed on a side of the first shutter 41 adjacent to the second shutter 42, and the first rack 544 extends along a side surface of the first shutter 41 from top to bottom gradually obliquely toward the rear side, and the oblique direction of the first rack 544 coincides with the first shutter 41. The second rack 545 is disposed at a side of the second barrier 42 adjacent to the first barrier 41, and the second rack 545 extends along a side of the second barrier 42 to be inclined from top to bottom toward the rear side with an inclination direction thereof coinciding with that of the second barrier 42. The first rack 544 has a plurality of first teeth 5441 arranged from top to bottom, the second rack 545 has a plurality of second teeth 5451 arranged from top to bottom, the first teeth 5441 are disposed on a side of the first rack 544 facing the second rack 545, and the second teeth 5451 are disposed on a side of the second rack 545 facing the first rack 544.

The transmission mechanism further comprises a gear 547, a housing 549, a guide rod 543, an elastic member 550, a base 551 and a support rod 552. The gear 547 is disposed in the housing 549 and rotatably connected to the housing 549, and the output shaft 512 of the motor 511 passes through the gear 547 so that the gear 547 can be driven to rotate around the output shaft 512, the output shaft 512 serving as a rotation shaft of the gear 547, perpendicular to the moving direction of each shutter. The gear 547 is disposed between the first rack 544 and the second rack 545 and remains engaged with the first teeth 5441 of the first rack 544 and the second teeth 5451 of the second rack 545.

The base 551 is connected to the rear side of the panel 2, and one end of each of the first shutter 41 and the second shutter 42 in the moving path can abut against the base 551, and in this embodiment, the lower end of each shutter can abut against the base 551. The gear 547 is rotatably connected with the housing 549 and can be lifted synchronously, one end of the supporting rod 552 is fixedly connected with the base 551, and the other end extends towards the gear 547 and penetrates into the housing 549. The elastic member 550 is preferably a spring, and is fitted over the support rod 552. One end of the spring is abutted with the end of the supporting rod 552 penetrating into the housing 549, and the other end is abutted with the bottom of the housing 549. The housing 549 is provided with a guide hole 5491 penetrating both ends of the housing 549 in the height direction, or at least penetrating the lower end of the housing 549. One end of the guide rod 543 is fixedly connected to the base 551, and the other end penetrates into the housing 549, so that the guide rod can guide the lifting movement of the housing 549 (each baffle and the housing 549 move linearly).

Referring again to fig. 1 and 2, the range hood further includes a smoke barrier 6 that can be turned over with respect to the panel 2, thereby opening or closing the air inlet 21 at the front side of the panel 2. The structure of the smoke baffle 6 and the driving mechanism of the smoke baffle 6 are the same as the prior art. Alternatively, the smoke barrier 6 may also translationally open or close the air inlet 21. Fig. 1 shows the smoke barrier 6 in a closed state, and fig. 2 shows the smoke barrier 6 in an open state.

In the initial state, the first baffle 41 and the second baffle 42 are both located below the air inlet 21, and referring to fig. 2 and 3, the housing 549 is located at the lowest position and the spring is in the reset state. In this state, both left and right sides can be smoked with constant pressure.

Referring to fig. 7 to 9, when the range hood is in operation, after the smoke barrier 6 is opened, and when a user cooks the right side of the range hood, if the range hood operates at a low gear, the left side of the range hood needs to reduce the air intake, so that the air intake speed of the right side oil smoke is increased, low-noise, efficient smoke absorption, reduced energy consumption, and no smoke leakage are realized. At this time, in order to meet the above requirement, the motor 511 is activated, the driving gear 547 rotates clockwise (in the direction shown in fig. 9, i.e. from the perspective of the user), the first rack 544 on the first baffle 41 engaged with the gear 547 moves upward under the driving of the gear 547, and the second rack 545 is abutted to the base 551 and cannot move downward, so that the gear 547 is pushed to move upward, the housing 549 moves upward as a whole, and the spring is compressed until the first baffle 41 moves upward to shield the first air intake region 211. After that, when the range hood is finished, the gear 547 rotates reversely, the first rack 544 (the first baffle 41) descends, and at the same time, the housing 549 is driven to move downwards by the restoring force of the spring, so that the gear 547 descends along with the first rack, until the initial state is reached.

Referring to fig. 10 to 12, when the range hood is in operation, after the smoke baffle 6 is opened, and when a user cooks the left side of the range hood, if the range hood is in a low gear state, the left side of the range hood needs to reduce the air intake, so that the air intake speed of the left side oil smoke is increased, low-noise, efficient smoking is realized, energy consumption is reduced, and meanwhile, the range hood is silent and does not run smoke. At this time, in order to meet the above requirement, the motor 511 is activated, the driving gear 547 rotates counterclockwise (in the direction shown in fig. 12, i.e., in the direction viewed from the user), the second rack 545 on the second blocking plate 42 engaged with the gear 547 moves upward under the driving of the gear 547, and the first rack 544 abuts against the base 551 and cannot move downward due to the gear 547 engaging with the first rack 544, so that the gear 547 is pushed to move upward, the housing 549 moves upward as a whole, and the spring is compressed until the second blocking plate 42 moves upward to block the second air intake area 212. After that, when the range hood finishes working, the gear 547 rotates reversely, the second rack 545 (the second baffle 42) descends, and at the same time, under the action of the restoring force of the spring, the housing 549 is driven to move downwards, so that the gear 547 descends along with the gear until the initial state is reached.

Claims

1. The utility model provides an air inlet subassembly, includes panel (2), air intake (21) have been seted up on panel (2), air intake (21) are including arranging side by side first air inlet region (211) and the regional (212) of second air inlet, its characterized in that: the air inlet assembly also comprises a baffle plate assembly and a movement mechanism for driving the baffle plate assembly to act;

the baffle plate assembly comprises a first baffle plate (41) and a second baffle plate (42);

the movement mechanism comprises a driving mechanism (51) and a transmission mechanism, and the transmission mechanism transmits the output of the driving mechanism (51) to the first baffle plate (41) and the second baffle plate (42);

the transmission mechanism comprises a gear (547) driven by the driving mechanism (51) to rotate, a first rack (544) arranged on the first baffle plate (41) and a second rack (545) arranged on the second baffle plate (42), and the gear (547) is located between the first rack (544) and the second rack (545) which are oppositely arranged;

the drive mechanism can be engaged with the first rack (544) and the second gear (545) through the gear (547) such that the first shutter (41) can be moved to block the first intake area (211) or to be displaced from the first intake area (211), or such that the second shutter (42) can be moved to block the second intake area (212) or to be displaced from the second intake area (212).

2. The intake assembly of claim 1, wherein: the first rack gear (544) is arranged on one side of the first baffle plate (41) adjacent to the second baffle plate (42), and the second rack gear (545) is arranged on one side of the second baffle plate (42) adjacent to the first baffle plate (41); the first toothed rack (544) has a first tooth (5441) for meshing with the gearwheel (547), the second toothed rack (545) has a second tooth (5451) for meshing with the gearwheel (547), the first tooth (5441) is arranged on the side of the first toothed rack (544) facing the second toothed rack (545), and the second tooth (5451) is arranged on the side of the second toothed rack (545) facing the first toothed rack (544).

3. The intake assembly of claim 2, wherein: the transmission mechanism further comprises a base (551) fixedly connected with the panel (2), when one baffle plate moves towards the corresponding air inlet area, the other baffle plate can abut against the base (551) to push the gear (547) to move along with the moving baffle plate, and the gear (547) keeps the trend of moving towards the direction far away from the air inlet (21).

4. The intake assembly of claim 3, wherein: the transmission mechanism further comprises an elastic piece (550), a supporting rod (552) and a casing (549) moving linearly along with the gear (547), the gear (547) is arranged in the casing (549) and is rotationally connected with the casing (549), one end of the supporting rod (552) is fixedly connected with a base (551), the other end of the supporting rod (552) extends towards the gear (547) and penetrates into the casing (549), the elastic piece (550) is sleeved on the supporting rod (552), one end of the elastic piece (550) abuts against the end of the supporting rod (552) penetrating into the casing (549), and the other end of the elastic piece (550) abuts against the bottom of the casing (549).

5. The intake assembly of claim 4, wherein: the transmission mechanism further comprises a guide rod (543), a guide hole (5491) is formed in the machine shell (549), one end of the guide rod (543) is fixedly connected with the base (551), and the other end of the guide rod penetrates into the machine shell (549), so that the linear movement of the machine shell (549) is guided.

6. The air intake assembly of any one of claims 1 to 5, wherein: the driving mechanism (51) comprises a motor (511) and an output shaft (512), wherein the output shaft (512) passes through the gear (547) so that the gear (547) can be driven to rotate around the output shaft (512).

7. The air intake assembly of any one of claims 1 to 5, wherein: the first baffle (41) is sized to completely block the first air intake region (211), and the second baffle (42) is sized to completely block the second air intake region (212).

8. A range hood applying the air intake assembly as claimed in any one of claims 1 to 7, comprising a housing (1), wherein the panel (2) is arranged at the front side of the housing (1), and is characterized in that: baffle subassembly and motion set up in panel (2) towards the rear side in casing (1), first air inlet region (211) and second air inlet region (212) are controlled and are set up side by side.

9. The range hood of claim 8, wherein: the range hood also comprises a smoke baffle (6) which opens and closes the air inlet (21) from the front side of the panel (2).