CN218480650U - Fume exhaust fan - Google Patents

Abstract

The utility model relates to a range hood, which comprises a machine body and a smoke baffle, wherein the machine body is provided with a fan cavity for accommodating a fan and a front side panel, the front side panel is provided with a smoke inlet, and the smoke inlet is in fluid communication with the fan cavity; the smoke baffle plate can be rotatably arranged at the smoke inlet so as to open or close the smoke inlet, the side surface of the smoke baffle plate facing the outside in the state of closing the smoke inlet is marked as a first surface, and the side surface facing the inside of the machine body is marked as a second surface; the smoke baffle plate is characterized by also comprising a flow guide cover connected to the second surface of the smoke baffle plate and used for guiding airflow entering from the smoke inlet to the position of the fan. The oil smoke can smoothly flow to the fan through the flow guide cover after entering from the smoke inlet, so that the oil smoke suction efficiency is high, and then the oil smoke is discharged outwards under the action of the fan.

Description

Fume exhaust fan

Technical Field

The utility model belongs to the technical field of kitchen appliance, concretely relates to range hood.

Background

The range hood generates negative pressure through the fan system, so that oil smoke generated during cooking is discharged outdoors. The range hood generally comprises an organism and a smoke baffle plate; the machine body is provided with a fan cavity for accommodating a fan and a front side panel, the front side panel is provided with a smoke inlet, and the smoke inlet is in fluid communication with the fan cavity; keep off the cigarette board and can set up in advancing cigarette mouth department with rotating to open or close into the cigarette mouth, should keep off the cigarette board under the state of closing into the cigarette mouth and regard as first face, the side towards the organism inside as the second face towards the side towards outside. The fan system comprises a fan, a fan frame and the like, and the position of the fan system is generally higher than that of the smoke inlet.

The smoke baffle plate can rotate to the opening state in the largest range as much as possible to collect smoke as much as possible during working, the smoke baffle plate is often opened until the smoke baffle plate is close to the horizontal state, due to the coanda effect, oil smoke can enter the smoke inlet along the lower surface of the smoke baffle plate, then the direction of the oil smoke is changed after the oil smoke collides with the corresponding part in the machine body, and then the oil smoke can flow upwards to the fan, namely the flowing direction of the oil smoke is not smooth enough, so that the efficiency of absorbing the oil smoke is reduced.

For example, the chinese patent application No. CN202110675482.0 (publication No. CN113390115 a) discloses "a side draft range hood", which includes: the smoke collecting cover is provided with an air inlet on a smoke guide plate; the turning plate component is rotatably arranged at the air inlet and is used for opening or closing the air inlet; the guide assembly is arranged in the smoke collecting hood; the oil screen assembly comprises an oil screen and an oil screen frame with an installation opening, the oil screen is detachably installed at the installation opening, one end of the oil screen frame is connected with the turning plate assembly, and the other end of the oil screen frame is connected with the guide assembly in a sliding manner; the connecting rod assembly is installed in the smoke collecting hood and located on the outer side of the installation opening, one end of the connecting rod assembly is connected with the smoke collecting hood, and the other end of the connecting rod assembly is connected with the back face of the turning plate assembly and/or the back face of the oil screen frame.

For another example, the chinese utility model with application number CN202023217029.5 (with publication number CN 215336530U) discloses "a rear air-intake type range hood", which includes a box, an air-collecting hood with an air inlet, an air cabinet assembly and a smoke exhaust assembly, and is characterized in that the air cabinet assembly includes a fan and an air cabinet bracket, the fan has a main air inlet and an air outlet, the fan is installed in the box through the air cabinet bracket, the main air inlet faces the rear side wall of the box, the air outlet is connected to the top of the box and communicated with the smoke exhaust assembly, a rear air inlet channel is formed between the fan and the rear side wall of the box, and a gap is left between the fan and the front side wall of the box, and the rear air inlet channel is respectively communicated with the air-collecting hood and the main air inlet.

In the above patent, the oil screen is located on the second surface of the smoke baffle and is linked with the smoke baffle, although the oil screen may affect the suction path of the range hood, the effect is not obvious, the oil smoke may still flow toward the fan direction in a manner of sticking to the second surface of the smoke baffle, and the oil smoke is condensed to form condensed oil in the area near the smoke inlet at the lower end of the fan system, and the condensed oil flows down along the second surface of the smoke baffle and easily flows out of the range hood.

Therefore, further improvements can be made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the current situation of the prior art is directed at, a range hood that enables the oil smoke that gets into the inlet flue to flow to the fan more smoothly is provided.

The utility model aims to solve the second technical problem is to prior art's current situation, provides a range hood that the condensate oil is difficult for flowing out the external machine body.

The utility model provides a technical scheme that above-mentioned first technical problem adopted is: a range hood, comprising:

the air conditioner comprises a machine body, a fan and a fan control unit, wherein the machine body is provided with a fan cavity for accommodating a fan and a front side panel, the front side panel is provided with a smoke inlet, and the smoke inlet is in fluid communication with the fan cavity;

the smoke baffle plate can be rotatably arranged at the smoke inlet so as to open or close the smoke inlet, the side surface of the smoke baffle plate facing the outside in the state of closing the smoke inlet is marked as a first surface, and the side surface facing the inside of the machine body is a second surface;

the method is characterized in that:

the smoke baffle plate is characterized by also comprising a flow guide cover connected to the second surface of the smoke baffle plate and used for guiding airflow entering from the smoke inlet to the position of the fan.

In order to fully utilize the space in the machine body, when the smoke baffle is in a state of closing the smoke inlet, the flow guide cover is completely accommodated in the machine body. Therefore, the space in the shell can be fully utilized, and after the smoke baffle is closed, the air guide sleeve cannot be seen from the outside of the machine body, so that the whole machine is simple.

The structure of the air guide sleeve can be various, preferably, according to the flowing direction of fluid entering the smoke inlet from the outside of the machine body, the air guide sleeve at least comprises an upstream air guide plate and a downstream air guide plate which are connected in a front-back mode and form an included angle with each other, wherein the front side edge of the upstream air guide plate is close to the front side free edge of the smoke baffle plate and is relatively fixed, the rear side edge of the downstream air guide plate is close to the rear side edge of the smoke baffle plate and is relatively fixed, the rear side edge of the upstream air guide plate is connected with the front side edge of the downstream air guide plate, and the connection part protrudes in a posture far away from the smoke baffle plate, so that the air guide sleeve is in a V shape in side view. Therefore, the oil smoke is attached to the outer wall of the air guide sleeve and is smoothly guided to the fan.

In order to prevent the oil smoke from entering the housing from the left opening and the right opening, the air guide sleeve also comprises a left side plate and a right side plate which respectively block the left opening and the right opening of the V-shaped structure formed by the upstream air guide plate and the downstream air guide plate. In this manner, the left and right openings are sealed to prevent oil smoke from entering the housing through the two openings.

In order to further solve the second technical problem of this application, still include the guide frame that has central opening, its upper edge can connect in with the junction of upper reaches guide plate and low reaches guide plate rotatably, and the axis of rotation is parallel with the axis of rotation of keeping off the cigarette board, and the lower limb of guide frame is located the inboard of advancing the cigarette mouth.

Therefore, after flowing down along the flow guide cover, the condensed oil flows into the shell along the flow guide frame and cannot flow out of the shell.

In order to guide the oil smoke to flow to the flow guide cover, the upper edge of the central opening of the flow guide frame is in an inverted V shape with a high middle part and low left and right sides. Therefore, the oil smoke reaches the middle position of the upper edge of the flow guide frame and flows upwards, so that the oil smoke can smoothly flow to the flow guide cover.

The connection structure of water conservancy diversion frame and kuppe can have the multiple, preferably, for the ease of observing, the kuppe has a spacing groove, and this spacing inslot internal energy retrains with rotating has the sliding seat, and the axis of rotation of this sliding seat is parallel with the axis of rotation that keeps off the cigarette board, the top edge of water conservancy diversion frame is fixed mutually with this sliding seat promptly. So, through setting up the spacing groove, observe the position of sliding seat when the dismouting of being convenient for.

The guide frame and the machine body can have various matching structures, preferably, in order to make the guide frame constrained on the machine body and facilitate the movement of the guide frame, the machine body is internally provided with a guide frame

A fixing member having a guide hole or a guide groove extending up and down;

the guide shaft extends along the left-right direction and is connected with the area, adjacent to the lower edge of the guide frame, and the guide shaft extends into the guide hole or the guide groove of the fixing piece and moves up and down along the guide hole along with the rotation of the smoke baffle plate.

The guide shaft is matched with the guide hole or the guide groove, so that the movement of the flow guide frame is realized.

In order to guide the oil smoke to flow upwards, the smoke guide plate is positioned between the plate body and the lower edge corresponding to the adjacent smoke inlet, the smoke guide plate gradually extends into the machine body from bottom to top, the lower part of the smoke guide plate is fixed with the inner wall of the front side plate of the machine body, and the guide frame is placed at the upper part of the smoke guide plate. So, upwards the water conservancy diversion through the smoke deflector, the oil smoke of being convenient for upwards flows.

In order to receive the condensed oil flowing down from the flow guide frame, the oil cup is arranged in the machine body and is arranged at a position corresponding to the lower edge of the flow guide frame so as to receive the oil flowing down through the flow guide frame. Therefore, the condensed oil flowing down from the flow guide frame flows down into the oil cup and cannot flow out of the machine body.

Compared with the prior art, the utility model has the advantages of: through setting up the kuppe that is used for leading the air current that gets into from advancing the mouth to the fan position, the oil smoke is through the kuppe and can be smoothly flow to the fan after advancing the mouth entering to the efficiency of oil absorption cigarette is higher, and the oil smoke is outwards discharged under the effect of fan afterwards.

Drawings

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

FIG. 2 is a schematic view from another angle of FIG. 1;

FIG. 3 is a longitudinal sectional view of FIG. 1 (with the smoke barrier in a state where the smoke inlet is opened);

FIG. 4 is an enlarged schematic view of detail A of FIG. 3;

FIG. 5 is a rear view of FIG. 1 with parts broken away;

FIG. 6 is an enlarged schematic view of detail B of FIG. 5;

FIG. 7 is an enlarged schematic view of detail C of FIG. 5;

FIG. 8 is a longitudinal cross-sectional view of the alternate location of FIG. 1;

FIG. 9 is an enlarged schematic view of detail D of FIG. 8;

FIG. 10 is a schematic view of another state of FIG. 3 (with the smoke barrier in a state closing the smoke inlet);

fig. 11 is an enlarged schematic view of a portion E of fig. 10.

Detailed Description

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

As shown in fig. 1 to 11, it is a preferred embodiment of the range hood of the present invention.

The utility model discloses a structure is applicable to the range hood of different grade type, and this embodiment uses the side to inhale formula oil absorption cigarette to explain as the example. The range hood comprises a machine body 1, a smoke baffle 2, a flow guide cover 3, a flow guide frame 4, a smoke guide plate 8, a fan 100 arranged in the machine body 1, an oil cup 200, an oil screen 300 and other main components.

The body 1 has a blower cavity 1b for accommodating the blower 100 and a front panel 11, the front panel 11 has a smoke inlet 12, and the smoke inlet 12 is in fluid communication with the blower cavity 1 b.

The smoke barrier 2 is rotatably disposed at the smoke inlet 12 so as to open or close the smoke inlet 12, and the side of the smoke barrier 2 facing the outside is defined as a first surface 2a and the side facing the inside of the housing is defined as a second surface 2b when the smoke inlet 12 is closed.

The air guide hood 3 is connected to the second surface 2b of the smoke barrier 2 for guiding the air flow entering from the smoke inlet 12 to the position of the fan 100. When the smoke barrier 2 is in a state of closing the smoke inlet 12, the air guide sleeve 3 is completely accommodated in the machine body 1. According to the fluid flowing direction entering the smoke inlet 12 from the outside of the machine body, the air guide sleeve 3 comprises an upstream air guide plate 31 and a downstream air guide plate 32 which are connected in front and back and form an included angle with each other, wherein the front side edge of the upstream air guide plate 31 is adjacent to the front free edge of the smoke baffle plate 2 and is relatively fixed, the rear side edge of the downstream air guide plate 32 is adjacent to the rear side edge of the smoke baffle plate 2 and is relatively fixed, the rear side edge of the upstream air guide plate 31 is connected with the front side edge of the downstream air guide plate 32, and the connection part protrudes in the posture of the far smoke baffle plate 2, so that the air guide sleeve 3 is in a V shape in side view. The air guide sleeve 3 further comprises a left side plate 33 and a right side plate 34 which respectively block a left opening and a right opening of a V-shaped structure formed by the upstream air guide plate 31 and the downstream air guide plate 32. Further, an illumination lamp 400 (fig. 3) for illuminating the cooking area is attached to a surface of the upstream baffle 31 facing downward. In other embodiments, the shape of the pod 3 may also be adjusted as desired.

The air guide frame 4 is provided with a central opening 41, the upper edge 4a of the central opening 41 is in an inverted V shape with a high middle and low left and right sides, the upper edge 4a of the central opening 41 can be rotatably connected to the joint of the upstream air guide plate 31 and the downstream air guide plate 32, the rotation axis of the central opening is parallel to the rotation axis of the smoke baffle plate 2, specifically, the air guide cover 3 is provided with a limiting groove 3a, the limiting groove 3a can be rotatably constrained with a movable seat 5, the rotation axis of the movable seat 5 is parallel to the rotation axis of the smoke baffle plate 2 (namely, the rotation axes extend left and right), and the upper edge 4a of the air guide frame 4 is fixed with the movable seat 5. The lower edge 4b of the guide frame 4 is positioned inside the smoke inlet 12. Specifically, referring to fig. 5 to 9, a fixing member 6 and a guide shaft 7 are disposed in the machine body 1, and the fixing member 6 has a guide hole 61 extending vertically; the guide shaft 7 extends in the left-right direction and is connected to a region of the guide frame 4 adjacent to the lower edge 4b thereof, and the guide shaft 7 extends into the guide hole 61 of the fixing member 6 and moves up and down along the guide hole 61 in accordance with the rotation of the smoke barrier 2.

In other embodiments, the guide holes 61 may be replaced with guide grooves. The lower edge 4b of the air guide frame 4 located inside the smoke inlet 12 can also be realized by other structures, such as other existing mechanisms capable of converting the rotation of the air guide frame 4 along with the smoke baffle 2 into the up-and-down movement of the guide shaft 7, such as a connecting rod and sliding block structure. The bottom of the guide frame 4 may not be connected to the housing 1, but rest on the lower edge 1a of the housing 1 corresponding to the smoke inlet 12, but the bottom of the guide frame 4 still extends into the housing 1.

Referring to fig. 3, 8 and 9, the smoke guide plate 8 is located between the plate body 4 and the lower edge 1a adjacent to the smoke inlet 12, the smoke guide plate 8 extends gradually into the machine body 1 from bottom to top, the lower part of the smoke guide plate 8 is fixed with the inner wall of the front side panel 11 of the machine body 1, and the guide frame 4 rests on the upper part of the smoke guide plate 8.

Referring to fig. 3 and 5, the oil cup 200 is disposed in the machine body 1 at a position corresponding to a lower edge of the baffle frame 4 to receive oil flowing downward through the baffle frame 4.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

The application process of the side draft range hood of the embodiment is as follows.

When cooking, the illumination lamp 400 is turned on to illuminate.

The cooking fumes generated during cooking are guided upwards by the fume guiding plate 8, then drawn upwards and towards the middle by the upper edge 42 of the guiding frame 4, then flow upwards along the upstream guiding plate 31 and the downstream guiding plate 32 in sequence, and finally discharged upwards and outwards by the fan 100.

The condensed oil enters the oil cup 200 along the downstream guide plate 32 and the guide frame 4, and does not flow out of the machine body 1.

After cooking, along with the smoke baffle 2 closes the smoke inlet 12, the guide shaft 7 moves along the guide hole 61 of the fixing part 6, so that the guide sleeve 3 and the guide frame 4 are accommodated in the machine body 1, the space in the machine body 1 can be fully utilized, and the machine body 1 is simple and compact in appearance.

Claims (10)

1. A range hood, comprising:

the air conditioner comprises a machine body (1) and a fan, wherein the machine body is provided with a fan cavity (1 b) accommodating a fan (100) and a front side panel (11), the front side panel (11) is provided with a smoke inlet (12), and the smoke inlet (12) is communicated with the fan cavity (1 b) in a fluid mode;

the smoke baffle plate (2) is rotatably arranged at the smoke inlet (12) so as to open or close the smoke inlet (12), and the side surface of the smoke baffle plate (2) facing the outside is marked as a first surface (2 a) and the side surface facing the inside of the machine body is a second surface (2 b) in the state of closing the smoke inlet (12);

the method is characterized in that:

the smoke baffle plate is characterized by further comprising a flow guide cover (3) connected to the second face (2 b) of the smoke baffle plate (2) and used for guiding airflow entering from the smoke inlet (12) to the position of the fan (100).

2. The range hood of claim 1, wherein: when the smoke baffle plate (2) is in a state of closing the smoke inlet (12), the air guide sleeve (3) is completely contained in the machine body (1).

3. The range hood of claim 1, wherein: according to the fluid flow direction entering the smoke inlet (12) from the outside of the machine body, the air guide sleeve (3) at least comprises an upstream air guide plate (31) and a downstream air guide plate (32) which are connected in front and back and form an included angle with each other, wherein the front side edge of the upstream air guide plate (31) is adjacent to the front side free edge of the smoke baffle plate (2) and is relatively fixed, the rear side edge of the downstream air guide plate (32) is adjacent to the rear side edge of the smoke baffle plate (2) and is relatively fixed, the rear side edge of the upstream air guide plate (31) is connected with the front side edge of the downstream air guide plate (32), and the connection part protrudes in a posture far away from the smoke baffle plate (2), so that the air guide sleeve (3) is in a V shape in side view.

4. The range hood of claim 3, wherein: the air guide sleeve (3) also comprises a left side plate and a right side plate (33, 34) which respectively block a left side opening and a right side opening of a V-shaped structure formed by the upstream air guide plate (31) and the downstream air guide plate (32).

5. The range hood of claim 3 or 4, wherein: the smoke baffle plate is characterized by further comprising a flow guide frame (4) with a central opening (41), wherein the upper edge (4 a) of the flow guide frame is rotatably connected to the joint of the upstream flow guide plate (31) and the downstream flow guide plate (32), the rotating axis of the flow guide frame is parallel to the rotating axis of the smoke baffle plate (2), and the lower edge (4 b) of the flow guide frame (4) is positioned on the inner side of the smoke inlet (12).

6. The range hood of claim 5, wherein: the upper edge of the central opening (41) of the flow guide frame (4) is in an inverted V shape with a high middle and low left and right sides.

7. The range hood of claim 5, wherein: the kuppe (3) have spacing groove (3 a), and this spacing groove (3 a) internal energy retrains has sliding seat (5) with rotating, and the axis of rotation of this sliding seat (5) is parallel with the axis of rotation of keeping off cigarette board (2), top edge (4 a) of water conservancy diversion frame (4) are fixed mutually with this sliding seat (5) promptly.

8. The range hood of claim 5, wherein: a fixing piece (6) is arranged in the machine body (1) and is provided with a guide hole (61) or a guide groove extending up and down;

the guide shaft (7) extends along the left-right direction and is connected with the area, adjacent to the lower edge (4 b) of the guide frame (4), of the guide frame, and the guide shaft (7) extends into the guide hole (61) or the guide groove of the fixing piece (6) and moves up and down along the guide hole (61) along with the rotation of the smoke baffle plate (2).

9. The range hood of claim 5, wherein: the cigarette guiding device is characterized by further comprising a cigarette guiding plate (8) located between the guide frame (4) and the lower edge (1 a) corresponding to the adjacent cigarette inlet (12), the cigarette guiding plate (8) gradually extends into the machine body (1) from bottom to top, the lower portion of the cigarette guiding plate is fixed with the inner wall of the front side panel (11) of the machine body (1), and the guide frame (4) is placed on the upper portion of the cigarette guiding plate (8).

10. The range hood of claim 5, wherein: the oil cup is characterized by further comprising an oil cup (200) positioned in the machine body (1) and arranged at a position corresponding to the lower edge (4 b) of the flow guide frame (4) so as to receive oil flowing downwards through the flow guide frame (4).

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