CN218096115U - Ceiling type range hood - Google Patents

Abstract

The utility model relates to a ceiling type range hood, include: the bottom of the smoke collecting hood is provided with at least two concave cavities which are concave upwards and are sequentially arranged in the left-right direction, the wall of each concave cavity is provided with an air inlet communicated with the smoke collecting cavity, and a baffle extending forwards and backwards is arranged between every two adjacent concave cavities; the oil cup is integrally strip-shaped, extends along the front-back direction, is arranged below the baffle and is used for collecting oil flowing down from the smoke collecting hood; the partition is at least provided with an air suction opening communicated with the smoke collection cavity at the front part of the partition, and an overflowing gap for external air flow to enter the air suction opening is defined between the at least front part of the oil cup and the partition. The design of the air suction opening at the front part of the middle partition of the smoke collecting hood and the overflowing gap between the partition and the front part of the oil cup ensures that the range hood can distribute certain air quantity to the overflowing annular gap between the partition and the oil cup, so that airflow with escape tendency can be captured again by sequentially passing through the overflowing gap, the air suction opening and the smoke collecting cavity, and the possibility of the oil smoke escaping at the front part of the smoke collecting hood is reduced.

Description

Ceiling type range hood

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to a ceiling type range hood.

Background

The range hood is a kitchen appliance for purifying the kitchen environment. Typical range hoods include a top-draft type and a near-draft type: the top-suction type range hood uses the principle of hot gas rising to suck and discharge the naturally rising oil smoke generated during cooking, and has the advantages of neatness, lightness, small occupied space and the like, so the top-suction type range hood is more and more widely applied, but the power source is far away from a cooking bench, so the suction effect of the power source is reduced, and the oil smoke cannot be completely sucked; the range hood of the near-suction type utilizes vortex wind pressure to keep away from, most of the oil smoke close to the cooking bench is absorbed in an arc form, the adverse effect on the health of a human body can be reduced, and the power source is close to the cooking bench, so that the suction effect of the power source cannot be reduced basically, but the oil smoke has high rising speed and can not provide power for a small amount of oil smoke escaping upwards.

The traditional ceiling type range hood mainly adopts an air suction hole structure with a conical filter screen arranged in the middle of an exhaust fume collecting hood, for example, the structure of the ceiling type range hood with an exhaust fume collecting cavity is disclosed in the Chinese utility model with the application number of CN200720111155.8 (the authorization publication number of CN 201059659Y). When only one burner of the lower cooker works, the oil smoke amount of the filter screen on one side of the burner is large, the oil smoke amount of the filter screen on the other side of the lower cooker is small, the oil smoke amounts on the two sides are unbalanced, a large amount of air is mixed into the side with the small oil smoke amount, and the oil smoke absorption efficiency is not high.

The utility model discloses a two-chamber air inlet independent control's tower type european style range hood is disclosed for this application number CN201420505325.0 (the grant bulletin number is: CN 204373015U). Chinese utility model patent includes host computer and collection petticoat pipe, and collection petticoat pipe is left and right two-chamber structure, is equipped with the crosspiece between the two-chamber, be equipped with the oil cup on the crosspiece, all be provided with the screen combination that covers collection petticoat pipe air intake and open and close control in the two-chamber, the screen combination is the slope form of outer high interior low along collection petticoat pipe left and right sides direction, and the screen combination encloses with the lateral wall of collection petticoat pipe and forms conical oil absorption smoke chamber, adopts left and right two-chamber collection petticoat pipe and sets up the screen combination of adjustable air door switching in the intracavity, to the different situation that the cooking utensils used, sneaks into the air door of two-chamber in a flexible way, and is strong and energy-conserving, can prevent that other air and reduce smoking efficiency, and the screen combination of slope is favorable to the collection of oil smoke droplet.

In the top-suction range hood with the left and right double cavities in the patent application, the oil cup (and the illuminating lamp) is usually arranged below the middle part of the smoke guide plate, when the cooking temperature is higher in the actual use process of a user, a large amount of quickly rising oil smoke is generated to impact the wall surfaces of parts such as the middle oil cup between the double cavities, and the oil smoke impacting the wall surfaces is expanded and diffused to the periphery of the wall surfaces along with the oil smoke. Most of the oil smoke expanded and diffused at the middle and rear ends of the middle wall surface can be recaptured by the suction force of the left and right double cavities, but the diffused oil smoke is easy to directly flush out of the range hood at the front end of the middle wall surface, so that a great amount of oil smoke escapes from the front panel of the range hood.

Therefore, the existing range hood needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a can effectively reduce the top-suction type range hood that the oil smoke appeared escaping at collection petticoat pipe front end.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a ceiling-mounted range hood, comprising:

the smoke collecting cover is internally provided with a smoke collecting cavity, the bottom of the smoke collecting cover is provided with at least two concave cavities which are concave upwards and are sequentially arranged in the left-right direction, the wall of each concave cavity is provided with an air inlet communicated with the smoke collecting cavity, and a partition arranged in a front-back extending manner is arranged between every two adjacent concave cavities;

the oil cup is integrally strip-shaped, extends along the front-back direction, is arranged below the baffle and is used for collecting oil flowing down from the fume collecting hood;

the oil cup is characterized in that the front part of the separating block is at least provided with an air suction opening communicated with the smoke collection cavity, and an overflowing gap for external air flow to enter the air suction opening is defined between the front part of the oil cup and the separating block.

In general, as long as a gap can be slightly reserved between the middle partition of the smoke collection hood and the oil cup, the purpose of allowing front oil smoke to enter the air suction opening can be met, in order to form the above-mentioned overflowing gap, a preferable structure is that the front portion of the partition is provided with a first concave portion which is concave upwards, the air suction opening is arranged on the bottom wall of the first concave portion of the partition, and the overflowing gap is formed between the front portion of the oil cup and the first concave portion of the partition.

The bottom wall of the first concave part of the separation block is distributed with air suction holes communicated with the smoke collection cavity, and each air suction hole forms the air suction opening.

In order to form communicated gaps on the left side and the right side of the front part of the oil cup and the front side of the front part of the oil cup, so that the effect of three-way circular suction is achieved, the width of the front part of the oil cup is smaller than that of the first concave part of the baffle, a first gap is formed between the front side edge of the front part of the oil cup and the first concave part, a second gap is formed between the left side edge and the right side edge of the front part of the oil cup and the first concave part, the first gap is communicated with the second gaps on the left side and the right side, and the overflowing gaps are formed together.

In order to form the overflow gap, another possible structure is that the front part of the oil cup has a sunken part relative to the rear part thereof, and the overflow gap is formed between the sunken part of the oil cup and the front part of the baffle.

In order to form communicated gaps between the left side and the right side of the front part of the oil cup and the front side, so that the effect of three-way circular suction is achieved, a third gap is formed between the front side edge of the front part of the oil cup and the baffle, a fourth gap is formed between the left side edge and the right side edge of the front part of the oil cup and the baffle, and the third gap is communicated with the fourth gaps on the left side and the right side to form the overflowing gap.

In order to guarantee the aesthetic property of the smoke collecting hood in a shutdown state, the left side and the right side of the smoke collecting hood are provided with smoke baffle plates for opening and closing the cavities.

Escape appears in order to reduce the oil smoke in the left and right sides of collection cigarette kitchen, keep off the cigarette board including being located left first fender cigarette board and the second fender cigarette board that is located the right side, first fender cigarette board rotates to be connected the left side position department of left side cavity on the collection cigarette cover, second fender cigarette board rotates to be connected the right side position department of right side cavity on the collection cigarette cover.

In order to enable oil liquid gathered on the first smoke baffle and the second smoke baffle to be collected into the oil cup in the shutdown state of the range hood, the first smoke baffle inclines towards the oil cup from top to bottom when the first smoke baffle is in the closed state, and the orthographic projection of the right side edge of the first smoke baffle on the vertical direction is positioned in the oil cup;

when the second smoke baffle is in a closed state, the second smoke baffle inclines towards the oil cup from top to bottom, and the orthographic projection of the left side edge of the second smoke baffle in the vertical direction is located in the oil cup.

In order to realize the installation and fixation of the oil cup and the smoke collection cover, the rear part of the partition is also provided with a second concave part which is sunken upwards, the rear part of the oil cup is provided with a fixing frame which is raised upwards, and the fixing frame is limited in the second concave part and is fixed through a connecting piece.

Compared with the prior art, the utility model has the advantages that: the design of the air suction opening at the front part of the middle partition of the smoke collecting hood and the overflowing gap between the partition and the front part of the oil cup ensures that the range hood can distribute certain air quantity to the overflowing annular gap between the partition and the oil cup, so that the airflow with the escape trend at the front end of the oil cup can be captured again through the overflowing gap, the air suction opening and the smoke collecting cavity in sequence in the cooking process, and the possibility of the oil smoke escaping at the front part of the smoke collecting hood is reduced.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;

fig. 2 is a schematic view of a three-dimensional structure at another angle according to embodiment 1 of the present invention (the first smoke barrier is in an open state, and the second smoke barrier is in a closed state);

fig. 3 is a vertical sectional view of embodiment 1 of the present invention, taken along the front-rear direction;

FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 3;

fig. 5 is an exploded perspective view of the smoke collecting hood and the oil cup according to embodiment 1 of the present invention (smoke baffle is not shown);

fig. 6 is a schematic perspective view of a structure according to embodiment 2 of the present invention (the first smoke barrier is in an open state, and the second smoke barrier is in a closed state);

FIG. 7 is a schematic perspective view of the oil cup of FIG. 6 in a separated state;

fig. 8 is a vertical sectional view of the range hood of embodiment 2 of the present invention, which is cut along the front-back direction.

Detailed Description

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

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Example 1

Referring to fig. 1 to 5, a range hood includes a fan frame 10, a fan system 11, and a smoke collecting hood 20. The fan system 11 is arranged on the fan frame 10, and an air outlet channel is limited in the fan frame 10. The smoke collecting cover 20 is arranged at the bottom of the fan frame 10, a smoke collecting cavity 200 is defined in the smoke collecting cover 20, and the smoke collecting cavity 200 is communicated with the air duct of the fan frame 10. The bottom of the smoke collecting cover 20 is provided with an air inlet 210 communicated with the smoke collecting cavity 200. After the fan system 11 is started, the external smoke may enter the air duct of the fan frame 10 through the air inlet 210 and the smoke collection cavity 200, and is discharged outside through the fan system 11.

Referring to fig. 1, the bottom wall of the fume collecting hood 20 of the present embodiment is generally a V-shaped structure with a middle portion protruding downward relative to left and right sides. The bottom of the hood 20 has two (or more than two) recessed cavities 21 which are arranged in the left-right direction in sequence and are recessed upward, and a part between the two recessed cavities 21 is relatively protruded downward, thereby constituting a baffle 22 which is arranged to extend in the front-rear direction.

Referring to fig. 4, the cross sections (vertical sections in the left-right direction) of the two cavities 21 of the smoke collecting hood 20 of the present embodiment are V-shaped with downward openings, and the inclined walls of the two cavities 21 adjacent to the partition 22 are provided with air inlets 210 communicated with the smoke collecting chamber 200, wherein the planes of the two air inlets 210 are inclined from top to bottom toward the partition 22 located in the middle of the two cavities, that is, the plane of the air inlet 210 located on the wall of the cavity on the left side is inclined from top to bottom to the right, and the plane of the air inlet located on the wall of the cavity on the right side is inclined from top to bottom to the left.

The whole width of the smoke collecting hood 20 is 890-900mm, and the front and rear depth is 420-450mm. The width of the barrier 22 is 110mm.

The oil cup 30 is arranged on the baffle 22 of the smoke collecting cover 20. The oil cup 30 is formed in a strip shape as a whole, and extends in the same direction as the extending direction of the barrier 22, that is, in the front-rear direction. An oil cup 30 is installed below the barrier 22 for collecting oil flowing down from the hood 20.

Referring to fig. 4, the middle portion of the bottom wall of the oil cup 30 protrudes downward relative to the left and right sides thereof to form a flow guide surface 31 for guiding airflow to the cavities 21 on the left and right sides, and the design of the flow guide surface 31 at the bottom of the oil cup 30 can make the oil smoke flow impacting the bottom wall of the oil cup 30 enter the cavities 21 on the left and right sides more smoothly, thereby reducing a large amount of scattering caused by direct impact between the oil smoke and the oil cup 30.

Referring to fig. 5, the front portion of the partition 22 is opened with an air inlet 2210 communicated with the smoke collection cavity 200, specifically, the air inlet 2210 includes a plurality of air suction holes 2211 arranged in sequence. The structure of the air suction inlet 2210 can be in various forms, such as a coarse rectangular grid type, a whole rectangular opening, or other reasonable opening structures, and preferably, the structure of the air suction inlet 2210 of the partition 22 should ensure sufficient flow area and sufficient strength of the part.

An overflow gap 40 for external air flow to enter the suction inlet 2210 is further defined between at least the front portion of the oil cup 30 and the baffle 22.

The partition 22 of the fume collecting hood 20 of the present embodiment has a first recess 221 recessed upward at a front portion thereof. Each air suction hole 2211 is opened in the bottom wall of the first recess 221 of the barrier 22. The width D1 of the front portion of the oil cup 30 is slightly smaller than the width D2 of the first recess 221 of the barrier 22, so that a first gap 41 is formed between the front edge of the front portion of the oil cup 30 and the first recess 221, and a second gap 42 is formed between the left and right edges of the front portion of the oil cup 30 and the first recess 221. The first gap 41 is communicated with the second gaps 42 at the left and right sides to form a U-shaped arc gap surrounding the front part of the oil cup 30, so that the effect of three-way circular suction is achieved, and the effect of sucking and exhausting oil smoke is ensured. When the oil smoke rises to the front end of the oil cup 30, the oil smoke which tends to escape is captured by the gaps in the three directions at a high wind speed.

Referring to fig. 4, due to the arrangement of the first concave part 221, the front wall surface of the partition 22 is raised vertically by a certain distance S relative to the middle and rear wall surfaces, the value of S is preferably 5mm or more and 12mm or less, too large S can weaken the flow rate between the three annular gaps, too small S can make the annular suction air volume insufficient to recapture the oil smoke, and too large air flow rate of the annular gap can generate extra pneumatic noise.

Referring to fig. 2, the oil cup 30 has a front portion narrower in width than a rear portion thereof. On one hand, the structure design reduces the impact area of the oil smoke on the front wall surface of the oil cup 30 and reduces the oil smoke quantity with the escape tendency; on the other hand, the reduction of the area of the front part of the oil cup 30 also enables the oil smoke to rapidly enter the concave cavities 21 at the left side and the right side in the rising process, and reduces the possibility of the oil smoke escaping from the front part. At the same time, the width of the front portion of the oil cup 30 is reduced to be less than the width of the first recess 221 of the baffle 22, so that the annular gap structure in both left and right directions can be smoothly realized.

The design of the air suction inlet 2210 at the front part of the middle partition 22 of the smoke collecting hood 20 and the flow passing gap 40 between the partition 22 and the front part of the oil cup 30 enables the range hood to distribute certain air volume to the flow passing annular gap between the partition 22 and the oil cup 30, so that the air flow with the escape tendency at the front end of the oil cup 30 in the cooking process can be recaptured by passing through the flow passing gap 40, the air suction inlet 2210 and the smoke collecting cavity 200 in sequence, thereby reducing the possibility of the oil smoke escaping at the front part of the smoke collecting hood 20.

The rear of the smoke collecting hood 20 has a second recess 222 recessed upward. The rear part of the oil cup 30 is provided with a fixing frame 33 which is arched upwards. When the oil cup 30 is installed, the fixing frame 33 can be limited in the second concave part 222 to realize the installation and positioning of the oil cup 30, and after the positioning is finished, the oil cup 30 and the baffle 22 of the smoke collecting hood 20 are fixed through a connecting piece.

The range hood of the present embodiment further includes an illumination lamp (not shown). Wherein, the lighting lamp can be arranged on the mounting rack which is arched upwards by the oil cup 30. Wherein, the rear part of the oil cup 30 corresponding to the lighting lamp can be a light-transmitting structure.

Smoke blocking plates for opening and closing the two cavities 21 are also provided on both left and right sides of the smoke collecting hood 20. The smoke baffle comprises a first smoke baffle 51 positioned on the left side and a second smoke baffle 52 positioned on the right side, the side edge of the first smoke baffle 51 is rotatably connected to the left position of the left cavity 21 on the smoke collecting hood 20, and the side edge of the second smoke baffle 52 is rotatably connected to the right position of the right cavity 21 on the smoke collecting hood 20. The first smoke deflector 51 is inclined leftward from the top down in the opened state, and the outermost edge of the opened state is exposed to the outside of the left edge of the smoke collecting hood 20. When the first smoke baffle 51 is in a closed state, the first smoke baffle 51 inclines towards the oil cup 30 from top to bottom, and the orthographic projection of the right side edge of the first smoke baffle 51 in the vertical direction is located in the oil cup 30, so that oil collected on the first smoke baffle 51 can be collected into the oil cup 30 in a power-off state of the range hood. The second smoke deflector 52 is inclined rightward from above in the opened state, and the outermost edge of the opened state is exposed outside the right side edge of the smoke collecting hood 20. When the second smoke baffle 52 is in the closed state, the second smoke baffle 52 inclines towards the oil cup 30 from top to bottom, and the orthographic projection of the left side edge of the second smoke baffle 52 in the vertical direction is located in the oil cup 30, so that the oil liquid gathered on the second smoke baffle 52 can be collected into the oil cup 30 in the shutdown state of the range hood.

The smoke barrier may be deflected by a drive mechanism such as a motor in cooperation with a linkage mechanism.

Example 2

Referring to fig. 6 to 8, the present embodiment is different from embodiment 1 in that: the front portion of the oil cup 30 has a portion depressed with respect to the rear portion thereof, the above-mentioned flow passing gap 40 is formed between the depressed portion 32 of the oil cup 30 and the front portion of the barrier 22, and at the same time, the first recess 221 of the front portion of the barrier 22 in embodiment 1 may be omitted. Specifically, a third gap 43 is formed between the front edge of the front portion of the oil cup 30 and the baffle 22, a fourth gap 44 is formed between the left and right edges of the front portion of the oil cup 30 and the baffle 22, and the third gap 43 is communicated with the fourth gaps 44 on the left and right sides, so that a U-shaped arc-shaped gap surrounding the front portion of the oil cup 30 can be formed, and the effect of 'three-way circular suction' is achieved.

Claims (10)

1. A ceiling-mounted range hood, comprising:

the smoke collecting cover (20) is internally provided with a smoke collecting cavity (200), the bottom of the smoke collecting cover is provided with at least two concave cavities (21) which are concave upwards and are sequentially arranged in the left-right direction, the wall of each concave cavity (21) is provided with an air inlet (210) communicated with the smoke collecting cavity (200), and a partition (22) which is arranged in a front-back extending manner is arranged between every two adjacent concave cavities (21);

the oil cup (30) is integrally strip-shaped, extends along the front-back direction, is arranged below the partition (22) and is used for collecting oil flowing down from the smoke collecting hood (20);

the method is characterized in that: an air suction opening (2210) communicated with the smoke collection cavity (200) is formed in at least the front portion of the partition (22), and an overflowing gap (40) for external air to enter the air suction opening (2210) is defined between at least the front portion of the oil cup (30) and the partition (22).

2. The ceiling-mounted range hood according to claim 1, wherein: the front part of the baffle (22) is provided with a first concave part (221) which is concave upwards, the air suction opening (2210) is arranged on the bottom wall of the first concave part (221) of the baffle (22), and the overflowing gap (40) is formed between the front part of the oil cup (30) and the first concave part (221) of the baffle (22).

3. The ceiling-mounted range hood according to claim 2, wherein: air suction holes (2211) communicated with the smoke collection cavity (200) are distributed on the bottom wall of the first concave part (221) of the partition (22), and each air suction hole (2211) forms the air suction opening (2210).

4. The ceiling-mounted range hood according to claim 2, wherein: the width of the front part of the oil cup (30) is smaller than that of a first concave part (221) of the baffle (22), a first gap (41) is formed between the front edge of the front part of the oil cup (30) and the first concave part (221), a second gap (42) is formed between the left and right edges of the front part of the oil cup (30) and the first concave part (221), and the first gap (41) is communicated with the second gaps (42) on the left and right sides to jointly form the overflowing gap (40).

5. The ceiling-mounted range hood according to claim 1, wherein: the front part of the oil cup (30) is provided with a sunken part relative to the rear part of the oil cup, and the overflowing clearance (40) is formed between the sunken part (32) of the oil cup (30) and the front part of the baffle (22).

6. The ceiling-mounted range hood according to claim 5, wherein: a third gap (43) is formed between the front side edge of the front part of the oil cup (30) and the baffle (22), fourth gaps (44) are formed between the left side edge and the right side edge of the front part of the oil cup (30) and the baffle (22), and the third gap (43) is communicated with the fourth gaps (44) on the left side and the right side to jointly form the overflowing gap (40).

7. The ceiling-mounted range hood according to any one of claims 1 to 6, wherein: smoke baffle plates for opening and closing the two concave cavities (21) are further arranged on the left side and the right side of the smoke collecting cover (20).

8. The ceiling-mounted range hood according to claim 7, wherein: keep off the cigarette board including being located left first cigarette board (51) and second cigarette board (52) that are located the right side, first cigarette board (51) of keeping off rotate to be connected the left side position department of left side cavity (21) on collection petticoat pipe (20), second cigarette board (52) rotate to be connected the right side position department of right side cavity (21) on collection petticoat pipe (20).

9. The ceiling-mounted range hood according to claim 8, wherein: when the first smoke baffle (51) is in a closed state, the first smoke baffle (51) inclines towards the oil cup (30) from top to bottom, and the orthographic projection of the right side edge of the first smoke baffle (51) in the vertical direction is positioned in the oil cup (30);

when the second smoke baffle (52) is in a closed state, the second smoke baffle (52) inclines towards the oil cup (30) from top to bottom, and the orthographic projection of the left side edge of the second smoke baffle (52) in the vertical direction is located in the oil cup (30).

10. The ceiling-mounted range hood according to any one of claims 1 to 6, wherein: the rear part of the baffle (22) is also provided with a second concave part (222) which is concave upwards, the rear part of the oil cup (30) is provided with a fixing frame (33) which is convex upwards, and the fixing frame (33) is limited in the second concave part (222) and is fixed through a connecting piece.

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