CN220551962U - Fume exhaust fan - Google Patents

Abstract

The utility model provides a range hood, which belongs to the technical field of cleaning of range hoods and mainly comprises a waste oil container, a cleaning liquid container, a first sensor, a second sensor and a controller. The first sensor is connected with the waste oil container and is used for detecting the first weight of the waste oil container; the second sensor is connected with the cleaning liquid container and is used for detecting the second weight of the cleaning liquid container; the controller is connected to the first sensor and the second sensor and determines instructions corresponding to the first weight and the second weight based on the acquired first weight, the second weight, the designed cleanable weight, the maximum load of the waste oil container, and the designed instruction determination conditions. Through the embodiment that this application provided, in time the suggestion user clearance when waste oil container needs to wash, in time the suggestion user supplements when the cleaning solution that the cleaning solution container held is not enough, in the stage of wasing the range hood, guarantees that waste oil container has the capacity of collecting sewage, prevents that sewage from spilling over.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of cleaning of range hoods, in particular to a range hood.

Background

Along with the continuous development of society, various electric appliances such as tide generally flow into our lives, and the living habits of the people are changed. The kitchen in the modern society has smaller space and more electrical appliances, such as: kitchen has become a clean place for every household, and kitchen ventilator has become one of the necessary kitchen appliances for ordinary households because China households have cooking habits and generate oil smoke during cooking. In general, in order to facilitate cleaning of a range hood, the existing range hood is provided with a self-cleaning device and an oil cup for containing sewage after cleaning.

However, when the amount of waste oil in the oil cup is large, the sewage generated after self-cleaning overflows after filling the oil cup, so that the kitchen is soiled, and the use experience of a user is reduced.

Disclosure of Invention

The utility model provides a shortcoming to current mode provides a range hood for solve the waste water that exists among the prior art under the more circumstances of waste oil in the oil cup, overflow after filling up the oil cup with the sewage that produces after the self-cleaning, the technical problem of dirty kitchen.

In a first aspect, an embodiment of the present application provides a range hood, including: a waste oil container and a cleaning liquid container; a first sensor connected to the waste oil container for detecting a first weight of the waste oil container; a second sensor connected to the cleaning liquid container for detecting a second weight of the cleaning liquid container; a controller connected to the first and second sensors and determining a condition based on the obtained first and second weights, a designed cleanable weight, a maximum load of the waste oil container, and a designed instruction, determining an instruction corresponding to the first and second weights; the instructions comprise a prompt instruction for insufficient cleaning liquid, a prompt instruction for cleaning the waste oil container and a control instruction for starting cleaning.

According to an embodiment of the present utility model, the range hood further includes: the fume collecting hood comprises an internal cavity and an air inlet formed in the wall of the fume collecting hood, and the air inlet is communicated with the cavity; the guide structure is arranged at the side edge of the air inlet and extends into the cavity; wherein, at least part waste oil container set up in the cavity, and set up in the waste oil guide side of guide structure.

According to the embodiment of the utility model, the guide structure surrounds the air inlet, and the inner side of the guide structure forms an air guide structure for guiding the oil fume outside the fume collecting hood to enter the cavity; the outside of guide structure is waste oil guide side for guide drip to guide structure's waste oil flow direction waste oil container.

According to an embodiment of the utility model, the guiding structure comprises: the first oil guiding surface is arranged on one side far away from the waste oil container and is used for guiding waste oil dropped to the first oil guiding surface to flow along at least one direction.

According to an embodiment of the utility model, the guiding structure further comprises: and the second oil guide surface is intersected with the first oil guide surface and is close to the waste oil container and used for guiding the waste oil flowing to the second oil guide surface to flow to the waste oil container.

According to an embodiment of the present utility model, the range hood further includes: the waste oil receiving piece is arranged between the guide structure and the waste oil container, an oil hole is formed in the waste oil receiving piece, and the oil hole is communicated with a waste oil inlet of the waste oil container.

According to an embodiment of the utility model, the guiding structure comprises a first receiving portion close to the waste oil container and a second receiving portion remote from the waste oil container; the depth of the first bearing part extending into the cavity is greater than the depth of the second bearing part extending into the cavity; the first bearing part is provided with the third oil guiding surface towards one side of the second bearing part, the third oil guiding surface is arranged at an angle with the waste oil dripping direction, and the waste oil drips to the third oil guiding surface and flows to the waste oil bearing part along the third oil guiding surface.

According to the embodiment of the utility model, a space is formed between the first bearing part and the fume collecting hood wall provided with the air inlet, and the space is used as a passage for waste oil which is dripped onto the third oil guiding surface to flow to the waste oil bearing part.

According to the embodiment of the utility model, the oil smoke flowing area of the guide structure is gradually reduced along the air inlet direction of the air inlet.

According to an embodiment of the present utility model, the range hood further includes: and the protection plate is arranged on the outer sides of the waste oil container and the cleaning liquid container and is detachably connected with the fume collecting hood.

The application provides a range hood, and the technical scheme that the embodiment of this application provided brings following beneficial effect at least:

utilize first sensor to detect the first weight of waste oil container to and the second weight of second sensor detection cleaning solution container, confirm the instruction corresponding with first weight and second weight through the controller, in time prompt user's clearance when waste oil container needs to wash, in time prompt user's replenishment when the cleaning solution that the cleaning solution container held is not enough, in the stage of wasing the range hood, guarantee that waste oil container has the capacity of collecting sewage, prevent that sewage from spilling over.

In order to prevent waste oil from dropping out of the fume collecting hood through the air inlet, the guide structure is designed to be in an inclined state from outside to inside and from right to left, and the waste oil dropping space of the cavity is divided into three areas, so that the waste oil drops onto the bearing main board in different paths and finally flows through the oil hole to enter the waste oil container.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a structure of an opened smoke collecting plate in a range hood according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of the positional relationship among a smoke collecting plate, a smoke collecting cover, a waste oil container, a cleaning solution container, a guiding structure and an air box in the range hood according to the embodiment of the present application;

fig. 4 is a schematic view of a rear view of a longitudinal section of a range hood according to an embodiment of the present disclosure;

FIG. 5 is a partial enlarged view at D in FIG. 4;

fig. 6 is a schematic diagram of a positional relationship among an air inlet plate, a guiding structure and an air inlet in a range hood according to an embodiment of the present application;

fig. 7 is a schematic diagram of a left-view structure of an air intake plate in a range hood according to an embodiment of the present application;

fig. 8 is a schematic view of a longitudinal section left-view structure of a range hood according to an embodiment of the present disclosure;

FIG. 9 is an enlarged view of a portion of FIG. 8 at E;

fig. 10 is a schematic structural view of a waste oil receiving member in a range hood according to an embodiment of the present disclosure;

fig. 11 is a flow chart of a control method of a range hood according to an embodiment of the present application.

Reference numerals and corresponding description:

1: a waste oil container;

2: a cleaning liquid container;

3: a first sensor;

4: a second sensor;

5: a fume collecting hood; 51: a cavity; 52: an air inlet; 53: a front cover wall; 531: a front hood wall body; 532: an air inlet plate; 54: a rear cover wall; 55: a smoke collecting plate;

6: a guide structure; 61: a first oil guiding surface; 62: a second oil guiding surface; 63: a first receiving portion; 64: a second receiving portion; 65: a third oil guiding surface; 66: a third receiving portion; 67: a fourth receiving portion;

7: a waste oil receiving member; 71: an oil hole; 72: receiving a main board;

8: spacing;

9: a wind box;

10: a protective plate;

a: a first region;

b: a second region;

c: and a third region.

Detailed Description

Examples of embodiments of the present application are illustrated in the accompanying drawings, in which like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wireless connections. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

As shown in fig. 1 to 5, the embodiment of the present application provides a range hood, which mainly includes a waste oil container 1, a cleaning liquid container 2, a first sensor 3, a second sensor 4, and a controller (not shown). The first sensor 3 is connected with the waste oil container 1 and is used for detecting the first weight of the waste oil container 1; the second sensor 4 is connected with the cleaning liquid container 2 and is used for detecting the second weight of the cleaning liquid container 2; the controller is connected with the first sensor 3 and the second sensor 4, and determines conditions based on the obtained first weight, the second weight, the designed cleanable weight, the maximum load of the waste oil container 1, and the designed instructions, and determines instructions corresponding to the first weight and the second weight; the instructions include an instruction for the shortage of cleaning liquid, an instruction for the cleaning of the waste oil container 1, and a control instruction for starting the cleaning.

In the embodiments provided herein, the waste oil container 1 of the range hood is an oil cup for receiving waste oil and receiving sewage formed during the cleaning of the range hood. The cleaning liquid container 2 is used for containing cleaning liquid for cleaning the range hood, and the cleaning liquid comprises water. The first sensor 3 and the second sensor 4 are one of a photoelectric type weighing sensor, a hydraulic type weighing sensor, a capacitive type weighing sensor, an electromagnetic force type weighing sensor and a magnetic pole deformation type weighing sensor. In some embodiments, the first sensor 3 is disposed below the waste oil container 1 and supported by the waste oil container 1, the second sensor 4 is disposed below the cleaning liquid container 2 and supported by the cleaning liquid container 2, and the first sensor 3 and the second sensor 4 detect corresponding weight data in real time.

The controller is connected with the first sensor 3 and the second sensor 4 through cables, acquires weight data detected by the first sensor 3 and the second sensor 4 respectively in real time, judges whether the acquired weight data meets designed instruction determination conditions, and determines and sends out an instruction corresponding to the weight data if the acquired weight data meets the corresponding determination conditions. The corresponding relation between the designed instruction determining condition and the instruction comprises the following steps: if the second weight is less than the designed cleanable weight, determining an indication of insufficient cleaning fluid; if the difference between the maximum load of the designed waste oil container 1 and the first weight is smaller than the second weight, determining a prompt instruction for cleaning the waste oil container 1; if the second weight is equal to or greater than the designed cleanable weight and the difference between the designed maximum load of the waste oil container 1 and the first weight is equal to or greater than the second weight, a control instruction to start cleaning is determined.

It should be noted that, the specific gravities of the waste oil, the cleaning solution and the sewage are not completely the same, the error effect caused by different specific gravities is considered before the design of the waste oil container 1 and the cleaning solution container 2, the capacity for buffering is increased, and the overflow problem of the waste oil, the cleaning solution and the sewage with different specific gravities according to the same specific gravity is avoided. Thus, the waste oil, cleaning fluid and sewage in the examples of the present application are regarded as having the same specific gravity.

Through the range hood that this application embodiment provided, utilize first sensor 3 to detect the first weight of waste oil container 1, and the second weight of second sensor 4 detection cleaning solution container 2, confirm the instruction corresponding with first weight and second weight through the controller, in time prompt user's clearance when waste oil container 1 needs to wash, in time prompt user's replenishment when the cleaning solution that cleaning solution container 2 held is not enough, in the stage of wasing the range hood, guarantee that waste oil container 1 has the capacity of collecting sewage, prevent that sewage from spilling over.

As shown in fig. 1 to 9, the range hood further includes a smoke collecting hood 5 and a guide structure 6 according to an embodiment of the present utility model. The fume collecting hood 5 comprises an internal cavity 51 and an air inlet 52 formed in the hood wall of the fume collecting hood 5, and the air inlet 52 is communicated with the cavity 51; the guide structure 6 is arranged at the side of the air inlet 52 and extends into the cavity 51; wherein at least part of the waste oil container 1 is arranged in the cavity 51 and on the waste oil guiding side of the guiding structure 6.

In the embodiment provided herein, the range hood comprises a bellows 9 and a fume collecting hood 5 connected. The bellows 9 is arranged above the fume collecting hood 5. The fume collecting hood 5 includes a front hood wall 53, a rear hood wall 54, side hood walls (not shown) and a top hood wall (not shown) enclosing a chamber 51. The top cover wall is horizontally arranged, through holes are formed in the thickness direction of the top cover wall, the through holes are communicated with the inside of the bellows 9, waste oil in the bellows 9 passes through the through holes under the action of gravity and enters the cavity 51 of the fume collecting hood 5, and the waste oil drops in the cavity 51 along the direction from top to bottom.

The waste oil container 1 and the cleaning solution container 2 are both arranged below the guiding structure 6 and detachably connected with the fume collecting hood 5, for example, in a drawing and inserting mode, so that the waste oil in the waste oil container 1 can be poured after the waste oil container 1 is detached by a user. The upper part of the front cover wall 53 is inclined forward, the lower part is inclined backward, the front cover wall 53 is arranged at an angle to the dropping direction of the waste oil, and the waste oil dropped onto the inner wall surface of the front cover wall 53 flows down along the front cover wall 53 toward the waste oil container 1.

The front hood wall 53 includes a front hood wall main body 531 and an air intake plate 532 connected. The air inlet 52 is formed along the thickness direction of the air inlet plate 532, the guiding structure 6 is connected with the front cover wall main body 531 and extends towards the rear cover wall 54, so as to form a receiving structure protruding from the front cover wall 53, and the receiving structure is used for receiving part of the dirty oil dropped and guiding the waste oil dropped to the guiding structure 6 to flow to the waste oil container 1. Wherein the guide structure 6 is integrally formed with the air inlet plate 532.

The top of the waste oil container 1 is provided with a waste oil inlet which is located in the cavity 51 and corresponds to the guide structure 6, and the guide structure 6 guides the waste oil to flow downward and into the waste oil container 1 through the waste oil inlet of the waste oil container 1.

As shown in fig. 2-6, according to the embodiment of the present utility model, the guiding structure 6 surrounds the air inlet 52, and the inner side of the guiding structure 6 forms an air guiding structure for guiding the fume outside the fume collecting hood 5 into the cavity 51; the outside of the guide structure 6 is a waste oil guide side for guiding the waste oil dropped to the guide structure 6 to flow toward the waste oil container 1.

In the embodiment provided by the application, the inner side of the guide structure 6 is provided with an inner wall surface surrounding the air inlet 52, and the oil smoke outside the fume collecting hood 5 passes through the air inlet 52 and flows into the cavity 51 of the fume collecting hood 5 along the inner wall surface of the guide structure 6; the guide structure 6 extends into the cavity 51 so as to protrude from the front cover wall 53, and an outer wall surface is provided on the outer side of the guide structure 6, the outer wall surface being located on a part of the path of the waste oil dripping so as to receive and guide the dripped waste oil to flow toward the waste oil container 1.

According to an embodiment of the present utility model, the guiding structure 6 comprises a first oil guiding surface 61, which first oil guiding surface 61 is provided at a side remote from the waste oil container 1 for guiding the waste oil dropped onto the first oil guiding surface 61 to flow in at least one direction.

In the embodiment provided herein, the first oil guiding surface 61 intersects the inner wall surface of the front shroud wall 53. The first oil guiding surface 61 is low on the high side and forms a height difference. The dirty oil droplets that have fallen to the first oil guide surface 61 flow from high to low along the first oil guide surface 61 by the action of gravity.

In another embodiment, unlike the previous embodiment, the middle of the first oil guiding surface 61 is high and low, two slope structures are formed, and the waste oil dropped onto any slope structure flows from high to low along the corresponding slope under the action of gravity.

The flow direction of the waste oil is different due to the different structure of the first oil guiding surface 61, and the dirty oil flows from high to low along the first oil guiding surface 61. Wherein, in the case that the first oil guiding surface 61 is a plane, the waste oil flows in an inclined direction of the first oil guiding surface 61; in the case where the first oil guide surface 61 is a curved surface, the waste oil flows in the direction of the curvature of the curved surface.

According to an embodiment of the present utility model, the guiding structure 6 further comprises a second oil guiding surface 62, which second oil guiding surface 62 intersects the first oil guiding surface 61 and is adjacent to the waste oil container 1 for guiding the waste oil flowing to the second oil guiding surface 62 to flow to the waste oil container 1.

In the embodiment provided herein, the second oil guiding surface 62 intersects the inner wall surface of the front shroud wall 53 at an angle. The junction of the second oil guiding surface 62 and the first oil guiding surface 61 is provided with a transition curved surface. The second oil guiding surface 62 extends in a direction approaching the waste oil container 1, the first oil guiding surface 61 is higher than the second oil guiding surface 62, and the waste oil dropped onto the first oil guiding surface 61 flows along the first oil guiding surface 61 to a junction of the second oil guiding surface 62 and the first oil guiding surface 61, and then continues to flow downward along the second oil guiding surface 62.

As shown in fig. 4 and 8-10, according to the embodiment of the present utility model, the range hood further includes a waste oil receiving member 7, the waste oil receiving member 7 is disposed between the guide structure 6 and the waste oil container 1, and an oil hole 71 is formed in the waste oil receiving member 7, and the oil hole 71 is in communication with a waste oil inlet of the waste oil container 1.

In the embodiment provided herein, the waste oil receiving member 7 includes a receiving main plate 72 and an oil hole 71 opened in a thickness direction of the receiving main plate 72. The receiving main board 72 is horizontally arranged and is arranged between the guide structure 6 and the waste oil container 1, the receiving main board 72 is connected with the front cover wall and the rear cover wall to form a sealing structure, and waste oil is prevented from flowing out of the fume collecting hood from between the receiving main board 72 and the front cover wall and between the receiving main board 72 and the rear cover wall. The oil hole 71 corresponds to the waste oil inlet and is provided above the waste oil inlet to allow the oil hole 71 to communicate with the waste oil inlet of the waste oil container 1. The receiving main plate 72 is used for receiving waste oil, which includes waste oil flowing along the guide structure 6 and dropping down, and waste oil directly dropping down on the receiving main plate 72. The waste oil on the receiving main plate 72 flows to the oil hole 71 and flows into the waste oil container 1; alternatively, the top of the receiving main plate 72 is provided with an inclined surface, and the lower portion of the inclined surface is provided with the oil hole 71.

In one embodiment, the waste oil receiving member 7 is a part of a cover body, the waste oil receiving member 7 is arranged at the bottom of the cover body, the cover body is fixedly connected with the fume collecting hood 5, and the cover body is tightly connected with the front cover wall and encloses an oil dropping cavity to prevent waste oil from flowing out of the oil dropping cavity. The cover is also attached to the rear cover wall to sandwich the cover between the front cover wall and the rear cover wall.

According to an embodiment of the utility model, the guiding structure 6 comprises a first abutment 63 close to the waste oil container 1 and a second abutment 64 remote from the waste oil container 1; the depth of the first receiving portion 63 extending into the cavity 51 is greater than the depth of the second receiving portion 64 extending into the cavity 51; the first receiving portion 63 is provided with a third oil guiding surface 65 toward one side of the second receiving portion 64, the third oil guiding surface 65 is disposed at an angle to the waste oil dripping direction, and the waste oil drips to the third oil guiding surface 65 and flows toward the waste oil receiving member 7 along the third oil guiding surface 65.

In the embodiment provided herein, the first receiving portion 63 is disposed at the bottom of the guiding structure 6, and the second receiving portion 64 is disposed at the top of the guiding structure 6. The distance from the rear end of the first receiving portion 63 to the rear cover wall 54 is smaller than the distance from the rear end of the second receiving portion 64 to the rear cover wall 54, i.e., the first receiving portion 63 is closer to the rear cover wall 54 than the second receiving portion 64, so that the first receiving portion 63 protrudes from the second receiving portion 64 in the backward direction, the third oil guiding surface 65 is located in the cavity 51 and is exposed in the direction of the waste oil dripping, the third oil guiding surface 65 is disposed at an angle to the inner wall surface of the front cover wall 53, and is also disposed at an angle to the waste oil dripping direction, so that the waste oil can drip onto the third oil guiding surface 65 and flow downward along the third oil guiding surface 65.

As shown in fig. 8, according to the embodiment of the present utility model, a space 8 is formed between the first receiving portion 63 and the hood wall of the fume collecting hood 5 having the air inlet 52, and the space 8 serves as a passage for the waste oil dropped onto the third oil guiding surface 65 to flow toward the waste oil receiving member 7.

In the embodiment provided in the present application, the bottom of the guiding structure 6 is spaced from the front cover wall 53 by an interval 8, and the lower part of the interval 8 is provided with a receiving main plate 72 of the waste oil receiving member 7. The lower portion of the third oil guiding surface 65 is inclined forward and the upper portion is inclined backward, the lower portion of the third oil guiding surface 65 corresponds to the aforementioned interval 8, and the waste oil flows along the third oil guiding surface 65 to the interval 8 and drops on the receiving main plate 72 through the interval 8 so as to flow through the oil hole 71 into the waste oil container 1.

According to an embodiment of the present utility model, the oil smoke flow area of the guiding structure 6 gradually decreases along the air inlet direction of the air inlet 52.

In the embodiment provided herein, the air intake direction of the air intake 52 is the inward direction of the vertical front shroud wall 53. The inner wall surface of the guiding structure 6 defines a flow area of the oil smoke along the air inlet direction of the air inlet 52, the inner wall surface of the guiding structure 6 includes a plurality of connected air guiding surfaces, and the third oil guiding surface 65 is one of the plurality of air guiding surfaces. The projection area of the inner wall surface of the guide structure 6 in the air inlet direction of the air inlet 52 is gradually reduced, so that the smoke flowing along the air guide surface gathers together, and the smoke diffusion is avoided to reduce the smoke absorption efficiency.

As shown in fig. 2 to 3, the range hood according to the embodiment of the present utility model further includes a protection plate 10, and the protection plate 10 is provided at the outer sides of the waste oil container 1 and the cleaning solution container 2 and detachably coupled with the fume collecting hood 5.

In the embodiment provided in the present application, the waste oil container 1 and the cleaning solution container 2 are disposed side by side below the air inlet 52. The protection plate 10 is disposed at the outer sides of the waste oil container 1 and the cleaning liquid container 2 to shield the waste oil container 1 and the cleaning liquid container 2 to form a hidden design effect. Wherein, the protection board 10 is connected with the fume collecting hood 5 in a clamping way; the protection plate 10 has a decorative function.

As shown in fig. 1-3 and 8, the fume collecting hood 5 further comprises a fume collecting plate 55 according to the embodiment of the present utility model, and the fume collecting plate 55 is openably and closably arranged at one side of the air inlet 52.

In the embodiment provided by the application, the smoke collecting plate 55 is a glass panel, and a driving mechanism for driving the smoke collecting plate 55 to rotate to open and close is arranged on the range hood. In the operation stage of the range hood, the smoke collecting plate 55 is opened to form a smoke collecting structure, so that the diffusion of smoke is avoided; during the non-operation stage of the range hood, the smoke collecting plate 55 is closed, so that the kitchen space is prevented from being occupied.

In a specific embodiment, as shown in fig. 4, two air inlets 52, which are a first air inlet and a second air inlet, are formed on the air inlet plate 532 and are arranged side by side. Each air inlet 52 is provided with an annular guide structure 6, and the guide structure 6 comprises a second receiving part 64, a third receiving part 66, a first receiving part 63 and a fourth receiving part 67 which are sequentially connected and are all in a plate-shaped structure. The second receiving portion 64 and the first receiving portion 63 are vertically disposed in correspondence, and the third receiving portion 66 and the fourth receiving portion 67 are laterally disposed in correspondence. The second receiving portion 64 and the first receiving portion 63 are inclined toward each other, and the third receiving portion 66 and the first receiving portion 63 are inclined toward each other. Wherein, the second bearing part 64, the third bearing part 66, the first bearing part 63 and the fourth bearing part 67 are connected with one surface facing the outer side of the fume collecting hood 5 to form an air guiding structure, namely the inner wall surface of the guiding structure; the second receiving portion 64, the third receiving portion 66, the first receiving portion 63, and the fourth receiving portion 67 are connected to one side of the inner side of the fume collecting hood 5 to form an oil guiding structure, i.e., an outer wall surface of the guiding structure.

The second receiving portion 64 is higher than the first receiving portion 63, the second receiving portion 64 is inclined in the horizontal direction, the lower end of the second receiving portion 64 is connected to the third receiving portion 66, and the upper end of the second receiving portion 64 is connected to the first receiving portion 63. The top surface of the second receiving portion 64 is the first oil guiding surface 61, the surface of the third receiving portion 66 opposite to the first receiving portion 63 is the second oil guiding surface 62, the top surface of the first receiving portion 63 is the third oil guiding surface 65, and the third oil guiding surface 65 is a part of the inner wall surface of the guide structure. The second receiving portion 64 of the first air intake 52 is disposed at a low angle to the left and right, and the second receiving portion 64 of the second air intake 52 is disposed at a low angle to the left and right. The lower portion of the first receiving portion 63 is inclined forward and the upper portion is inclined rearward, and a space 8 is formed between the lower portion of the first receiving portion 63 and the front cover wall 53, and a receiving main plate 72 is provided below the space 8.

In the front-rear direction, the cavity 51 is divided into three waste oil drop areas, the first area a is a length range from the front cover wall 53 to the rear end of the second receiving portion 64, the second area B is a length range from the rear end of the second receiving portion 64 to the rear end of the first receiving portion 63, and the third area C is a length range from the rear end of the first receiving portion 63 to the rear cover wall 54. The waste oil dropped in the first area a drops onto the first oil guiding surface 61 of the second receiving portion 64, the second oil guiding surface 62 of the third receiving portion 66, the fourth receiving portion 67, or the front cover wall 53. The waste oil dropped onto the second receiving portion 64 flows down along the second receiving portion 64 to the third receiving portion 66, then continues to flow down along the third receiving portion 66, and finally drops to the receiving main plate 72; the waste oil dropped onto the third receiving portion 66 flows downward along the third receiving portion 66, and finally drops onto the receiving main plate 72; the waste oil dropped onto the fourth receiving portion 67 flows downward along the fourth receiving portion 67, and finally drops onto the receiving main plate 72; the waste oil dropped onto the front cover wall 53 flows downward along the front cover wall 53, and finally flows to the receiving main plate 72. The waste oil dropped in the second region B drops onto the first receiving portion 63, that is, onto the third oil guiding surface 65 of the first receiving portion 63. The waste oil dropped onto the third oil guiding surface 65 flows down along the third oil guiding surface 65 to the space 8, then drops and passes through the space 8, and finally drops to the receiving main plate 72. The waste oil dropped in the third area C directly drops onto the receiving main plate 72 or the rear cover wall 54; the waste oil dropped onto the rear cover wall 54 flows downward along the rear cover wall 54, and finally flows to the receiving main plate 72. The waste oil on the receiving main plate 72 passes through the oil hole 71 and enters the waste oil container 1.

The distance from the top of the protection plate 10 to the rear cover wall 54 in the front-rear direction is a first distance, the distance from the lower end of the first receiving part 63 to the rear cover wall 54 is a second distance, and the distance from the upper end of the first receiving part 63 to the rear cover wall 54 is a third distance.

In a specific embodiment, the control method of the range hood comprises the following steps:

acquiring a first weight of the waste oil container 1 detected by the first sensor 3;

acquiring a second weight of the cleaning liquid container 2 detected by the second sensor 4;

instructions corresponding to the first weight and the second weight are determined based on the first weight, the second weight, the designed cleanable weight, the maximum load of the waste oil container 1, and the designed instruction determination conditions.

In the embodiment of the application, the designed cleanable weight is the weight of cleaning liquid for cleaning the range hood once. The user inputs a cleaning instruction through a control panel arranged on the shell of the range hood, and the steps are executed after the cleaning instruction is received. In addition, the instructions corresponding to the first weight and the second weight in the foregoing steps include an instruction for the shortage of the cleaning liquid, an instruction for the cleaning of the waste oil container 1, and a control instruction for starting the cleaning.

Determining instructions corresponding to the first weight and the second weight according to the first weight, the second weight, the designed cleanable weight, the maximum load of the waste oil container 1 and the designed instruction determining conditions in the previous step; the instructions comprise a prompt instruction of insufficient cleaning liquid, a prompt instruction of cleaning the waste oil container 1 and a control instruction of starting cleaning, and at least comprise one of the following:

if the second weight is less than the designed cleanable weight, determining an indication of insufficient cleaning fluid;

if the difference between the maximum load of the designed waste oil container 1 and the first weight is smaller than the second weight, determining a prompt instruction for cleaning the waste oil container 1;

if the second weight is equal to or greater than the designed cleanable weight and the difference between the designed maximum load of the waste oil container 1 and the first weight is equal to or greater than the second weight, a control instruction to start cleaning is determined.

If the current second weight is smaller than the designed cleanable weight, the fact that the existing cleaning liquid cannot meet the primary cleaning dosage is indicated, and the cleaning liquid is insufficient and is not cleaned; if the difference between the maximum load of the designed waste oil container 1 and the first weight is smaller than the second weight, the waste oil in the current waste oil container 1 is more, the waste oil container 1 cannot meet the weight of the recycled sewage, and the waste oil container 1 is prompted to be cleaned and is not cleaned; if the second weight is equal to or greater than the designed cleanable weight and the difference between the maximum load of the designed waste oil container 1 and the first weight is equal to or greater than the second weight, the conventional cleaning liquid can meet the requirement of one-time cleaning, the waste oil in the waste oil container 1 is smaller, the weight of the recycled sewage can be met, and the cleaning can be implemented.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

the first weight of the waste oil container 1 is detected by the first sensor 3, the second weight of the cleaning liquid container 2 is detected by the second sensor 4, the instruction corresponding to the first weight and the second weight is determined by the controller, the cleaning is timely prompted when the waste oil container 1 needs to be cleaned, the cleaning liquid container 2 is not enough to be filled with cleaning liquid, the user is timely prompted to be supplemented, and the waste oil container 1 is guaranteed to have the capacity of collecting sewage and the overflow of the sewage is prevented in the stage of cleaning the range hood.

In order to prevent waste oil from dripping out of the fume collecting hood 5 through the air inlet 52, the guide structure 6 is designed to be inclined from outside to inside and from right to left, and divides the waste oil dripping space of the cavity 51 into three areas, drips onto the receiving main board 72 in different paths, and finally flows through the oil hole 71 to enter the waste oil container 1.

Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (10)

1. A range hood, comprising:

a waste oil container (1) and a cleaning liquid container (2);

a first sensor (3) connected to the waste oil container (1) for detecting a first weight of the waste oil container (1);

a second sensor (4) connected to the cleaning liquid container (2) for detecting a second weight of the cleaning liquid container (2);

a controller connected to the first sensor (3) and the second sensor (4) and determining a command corresponding to the first weight and the second weight based on the acquired first weight, the second weight, a designed cleanable weight, a maximum load of the waste oil container (1), and a designed command determination condition; the instructions comprise an instruction for prompting insufficient cleaning liquid, an instruction for prompting cleaning of the waste oil container (1) and a control instruction for starting cleaning.

2. The range hood of claim 1, further comprising:

the fume collecting hood (5) comprises an internal cavity (51) and an air inlet (52) formed in the hood wall of the fume collecting hood (5), and the air inlet (52) is communicated with the cavity (51);

the guide structure (6) is arranged at the side edge of the air inlet (52) and extends into the cavity (51);

wherein at least part of the waste oil container (1) is arranged in the cavity (51) and is arranged on the waste oil guiding side of the guiding structure (6).

3. The range hood according to claim 2, wherein,

the guide structure (6) surrounds the air inlet (52), and an air guide structure is formed at the inner side of the guide structure (6) and used for guiding the oil smoke at the outer side of the fume collecting hood (5) to enter the cavity (51); the outside of the guide structure (6) is a waste oil guide side used for guiding waste oil which is dropped to the guide structure (6) to flow to the waste oil container (1).

4. A range hood according to claim 3, wherein the guiding structure (6) comprises:

the first oil guiding surface (61) is arranged at one side far away from the waste oil container (1) and is used for guiding the waste oil dropped on the first oil guiding surface (61) to flow along at least one direction.

5. A range hood according to claim 4, wherein the guiding structure (6) further comprises:

a second oil guiding surface (62) intersecting with the first oil guiding surface (61) and being close to the waste oil container (1) for guiding the waste oil flowing to the second oil guiding surface (62) to flow toward the waste oil container (1).

6. The range hood of claim 2, further comprising:

the waste oil receiving piece (7) is arranged between the guide structure (6) and the waste oil container (1), an oil hole (71) is formed in the waste oil receiving piece (7), and the oil hole (71) is communicated with a waste oil inlet of the waste oil container (1).

7. The range hood of claim 6, wherein the range hood further comprises a hood body,

the guide structure (6) comprises a first receiving portion (63) close to the waste oil container (1) and a second receiving portion (64) far away from the waste oil container (1);

the first bearing part (63) extends into the cavity (51) to a depth greater than the depth of the second bearing part (64) extending into the cavity (51); the first bearing part (63) is provided with a third oil guiding surface (65) towards one side of the second bearing part (64), the third oil guiding surface (65) is arranged at an angle with the waste oil dripping direction, and waste oil drips to the third oil guiding surface (65) and flows to the waste oil bearing part (7) along the third oil guiding surface (65).

8. The range hood of claim 7, wherein the cooking fume remover comprises a fan,

a space (8) is formed between the first bearing part (63) and the cover wall of the fume collecting cover (5) provided with the air inlet (52), and the space (8) is used as a passage for waste oil which is dripped onto the third oil guiding surface (65) to flow to the waste oil bearing part (7).

9. The range hood according to any one of claims 2 to 8, wherein,

the oil smoke flow area of the guide structure (6) is gradually reduced along the air inlet direction of the air inlet (52).

10. The range hood of claim 2, further comprising:

the protection board (10) is arranged on the outer sides of the waste oil container (1) and the cleaning liquid container (2) and is detachably connected with the fume collecting hood (5).