CN112902251A - Air inlet assembly and range hood with same - Google Patents

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 driven by the driving mechanism to rotate, a first rack arranged on the first baffle and a second rack arranged on the second baffle; drive mechanism can pass through gear and first rack toothing for first baffle can move and shelter from first air inlet region or move and stagger with first air inlet region, and drive mechanism can also pass through gear and second rack toothing, makes the second baffle can move and shelter from the second air inlet region or move and stagger with the second air inlet region. 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 a range hood applying the air inlet component.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The side-draft 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 completely opened or completely closed state 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 and cannot realize efficient static suction when at a large gear.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an air intake assembly, which can realize high-efficiency smoking with low noise, in view of the above-mentioned shortcomings of the prior art.

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; drive mechanism can be through gear and first rack toothing for first baffle can move and shelter from first air inlet region or move and stagger with first air inlet region, drive mechanism can also pass through gear and second rack toothing for the second baffle can move and shelter from the second air inlet region or move and stagger with the second air inlet region.

In order to facilitate the meshing 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 space for the movement of the baffle, the gear is selectively meshed with the first rack or the second rack.

To facilitate selective meshing of the two racks, the first and second racks have respective first and second ends, each set of first and second ends being opposite in the path of travel of the respective barrier, the first rack having a first smooth section adjacent the first end, the second rack having a second smooth section adjacent the first end, the motion mechanism further comprising a reversing plate rotatably connected to the face plate, the axis of rotation of the gear and the axis of rotation of the reversing plate being parallel, the reversing plate being disposed adjacent the second end of each rack.

In order to arrange the gear and the reversing plate, the transmission mechanism further comprises a shell connected and fixed with the panel, and the reversing plate and the gear are arranged in the shell and are in rotating connection.

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

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 which opens and closes 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 diagram of a range hood according to an embodiment of the present invention in a right-open state;

FIG. 3 is a schematic view of hidden parts of a range hood according to an embodiment of the present invention;

fig. 4 is a schematic view (seen from the rear side) of a baffle plate assembly of the range hood and a movement mechanism thereof according to the embodiment of the invention;

fig. 5 is an exploded schematic structural view (seen from the rear side) of a baffle assembly and a moving mechanism thereof of the range hood according to the embodiment of the invention;

fig. 6 is a schematic view (hidden casing, viewed from the rear side) of the moving mechanism of the baffle plate assembly of the range hood according to the embodiment of the present invention;

FIG. 7 is an enlarged view of section I of FIG. 6;

fig. 8 is a schematic view of the range hood according to the embodiment of the present invention in a left-open state;

fig. 9 is a schematic view of hidden parts of the range hood of fig. 8;

fig. 10 is a schematic view (hidden casing, viewed from the rear side) of a baffle assembly of a range hood and a movement mechanism thereof according to an embodiment of the present invention;

FIG. 11 is an enlarged view of detail II of FIG. 10;

fig. 12 is a schematic view of the range hood in a fully opened state according to the embodiment of the present invention;

fig. 13 is a schematic view of hidden parts of the extractor hood of fig. 12;

fig. 14 is a schematic view (hidden casing, viewed from the rear side) of a baffle assembly and a moving mechanism thereof of a range hood according to an embodiment of the present invention.

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 "central," "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 the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction 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 and 11, 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 from top to bottom. The fan system can be arranged in the shell 1, and also can be arranged above the shell 1, and the structure can adopt the prior art.

The oil screen assembly 3 may be of an integrated 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 integrated 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 move 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 a dimension in the left-right direction shown in fig. 3, and "height" refers to a dimension in the up-down direction shown in fig. 3. The front, back, left, right, up and right are all the directions relative to the user when in use.

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 block 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 mounting bracket 53 and 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.

Referring to fig. 3 to 6, the moving mechanism can drive the first shutter 41 and the second shutter 42 to respectively and independently perform the up-and-down movement in the inclined extending direction of the panel 2. The moving mechanism includes a transmission mechanism including a first rack 544 and a second rack 545, the first rack 544 is disposed on a side of the first baffle plate 41 adjacent to the second baffle plate 42, and the first rack 544 extends along a side surface of the first baffle plate 41 from top to bottom gradually and obliquely rearward, and the oblique direction of the first rack 544 coincides with the first baffle plate 41. The second rack 545 is disposed at a side of the second baffle plate 42 adjacent to the first baffle plate 41, and the second rack 545 extends obliquely from top to bottom along a side surface of the second baffle plate 42 toward the rear side, and the oblique direction thereof coincides with the second baffle plate 42. The first and second racks 544, 545 have opposite first and second ends, respectively. 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 first rack 544 has a first smooth section 5442 provided with no first teeth 5441 near the tip, and the second rack 545 has a second smooth section 5452 provided with no second teeth 5451 near the tip. When the baffle is disposed above the air inlet 21, the smooth section may be disposed at the bottom end of the corresponding rack.

The motion mechanism also includes a gear 547, a reverser plate 548, and a housing 549. The gear 547 is disposed between the first rack 544 and the second rack 545, and may be engaged with the first rack 544 or the second rack 545, or may be engaged with both the first rack 544 and the second rack 545. The reversing plate 548 is disposed below the gear 547 and rotatably disposed in the housing 549, and the housing 549 may be fixedly connected to the side of the panel 2 facing the inside of the housing 1, i.e. the reversing plate 548 is indirectly rotatably connected to the panel 2, but the reversing plate 548 may also be directly rotatably connected to the panel 2. The rotational axes of the gear 547 and the reversing plate 548 are parallel and extend in the front-rear direction. Preferably, the rotational axis of the reversing plate 548 is located at an intermediate position in the left-right direction.

The smooth segments are disposed at a first end of the respective rack, and the reversing plate 548 is disposed adjacent a second end of each rack.

The reversing plate 548 can realize that the first rack 544 and the second rack 545 move respectively, and when the reversing plate 548 is not provided, the rack-and-pinion mechanism can only realize two working states of left air inlet or right air inlet, and after the reversing plate 548 is added, three working states of left air inlet, right air inlet and left and right simultaneous air inlet can be realized.

The transmission mechanism further includes an electric or manual driving mechanism, which may be, for example, a motor, so that the gear 547 can be driven by the motor, which is not shown in the embodiment, and the conventional motor can be used to drive the gear 547 to rotate. The motor can be fixed with the gear 547, and the output shaft of the motor drives the gear 547 to rotate. Of course, the gear 547 may be driven manually, such as by inserting a driving rod into the gear 547, and rotating the driving rod to rotate the gear 547.

In the initial state, the first baffle 41 and the second baffle 42 are both located below the air inlet 21, referring to fig. 12 to 14, at this time, the gear 547 is located at the upper portion of the first rack 544 and the second rack 545 and is meshed with both the first rack 544 and the second rack 545, and the left and right sides of the reversing plate 548 are uniformly stressed to be in a horizontal state. In this state, the left and right sides can be equally smoked.

Referring to fig. 2 and 3, when the range hood works, after the smoke baffle 6 is opened, when a user cooks on the right side, if the range hood runs 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 and energy consumption reduction are realized, and meanwhile, the range hood is silent and does not run smoke. At this time, in order to satisfy the above requirement, the gear 547 is rotated so that the first rack 544 (the first shutter 41) is raised and the second rack 545 (the second shutter 42) is lowered, and since the gear 547 is not fixed in position, the gear 547 is also raised, and the second rack 545 presses the reversing plate 548 downward toward the right side, and the left side of the reversing plate 548 is tilted upward. When the gear 547 moves upward to be opposite to the second smooth section 5452 of the second rack 545, the gear 547 is no longer engaged with the second rack 545, whereby the second rack 545 is no longer lowered and the first rack 544 continues to rise until the first shutter 41 closes the first intake area 211. Thereafter, when the range hood is finished, the gear 547 rotates reversely, the first rack 544 descends, and the gear 547 descends along with the first rack 544 until the bottom of the first rack 544 presses against the left side of the reversing plate 548, so that the left side of the reversing plate 548 presses down and the right side of the reversing plate 548 ascends until the first rack 544 and the gear 547 descend to the gear 547 to be meshed with the second teeth 5451 of the second rack 545 again, and thereafter the first rack 544 continues to descend while the second rack 545 ascends until the bottoms of the first rack 544 and the second rack 545 are equal to the same height, and the reversing plate 548 returns to the initial state.

Referring to fig. 8 to 11, when the range hood is in operation, after the smoke barrier 6 is opened, and when a user cooks the left side of the range hood, if the range hood is in a low gear, 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 smoke absorption is realized, energy consumption is reduced, and meanwhile, the range hood is silent and does not run smoke. At this time, in order to satisfy the above requirement, the gear 547 is rotated so that the second rack 545 (the second shutter 42) is raised and the first rack 544 (the first shutter 41) is lowered, and since the gear 547 is not fixed in position, the gear 547 is also raised, and the first rack 544 presses the direction changing plate 548 downward toward the right side, so that the left side of the direction changing plate 548 is tilted upward. When the gear 547 moves upward to be opposite to the first smooth section 5442 of the first rack 544, the gear 547 is no longer engaged with the first rack 544, whereby the first rack 544 is no longer lowered and the second rack 545 continues to rise until the second shutter 42 closes the second intake area 212. Thereafter, when the range hood is finished, the gear 547 rotates reversely, the second rack 545 descends, and the gear 547 descends simultaneously until the bottom of the second rack 545 presses against the right side of the reversing plate 548, so that the right side of the reversing plate 548 presses down and the left side of the reversing plate 548 ascends until the second rack 545 and the gear 547 descend to the gear 547 to re-engage with the first teeth 5441 of the first rack 544, and thereafter the second rack 545 continues to descend while the first rack 544 ascends until the bottoms of the second rack 545 and the first rack 544 are equal in height, and the reversing plate 548 returns to the initial state.

This embodiment can realize the rational distribution of regional intake about the air intake, cooks when user's unilateral, and range hood starts the intake of little gear, through reducing the non-culinary art side 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. In addition, the left and right air inlet flow is adjusted through one driving mechanism, so that the cost is reduced, the problem occurrence probability of the driving mechanism is reduced, and the product maintenance rate is reduced.

Claims (8)

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 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 plate (41) and the second baffle plate (42);

the transmission mechanism comprises a gear (547) driven by the driving mechanism 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 driving mechanism can be meshed with the first rack (544) through the gear (547) so that the first baffle plate (41) can move to block the first air inlet area (211) or move to be staggered with the first air inlet area (211), and can be meshed with the second rack (545) through the gear (547) so that the second baffle plate (42) can move to block the second air inlet area (212) or move to be staggered with the second air inlet 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 gear (547) selectively engages the first rack (544) or the second rack (545).

4. The intake assembly of claim 3, wherein: the first rack (544) and the second rack (545) have a first end and a second end, respectively, each set of the first end and the second end being opposite in a movement path of the corresponding barrier, the first rack (544) has a first smooth section (5442) near the first end, the second rack (545) has a second smooth section (5452) near the first end, the motion mechanism further includes a reversing plate (548), the reversing plate (548) is rotatably connected to the panel (2), a rotation axis of the gear (547) and a rotation axis of the reversing plate (548) are parallel, and the reversing plate (548) is disposed adjacent to the second end of each rack.

5. The intake assembly of claim 4, wherein: the transmission mechanism also comprises a machine shell (549) fixedly connected with the panel (2), and the reversing plate (548) and the gear (547) are arranged in the machine shell (549) and are connected in a rotating mode.

6. 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).

7. A range hood applying the air intake assembly as claimed in any one of claims 1 to 6, 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.

8. The range hood of claim 7, 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).

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