CN113803755A

CN113803755A - Smoke exhaust ventilator

Info

Publication number: CN113803755A
Application number: CN202010544111.4A
Authority: CN
Inventors: 谭柏豪; 马世涛; 王春旭; 何新奎; 蒋济武
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-12-17
Anticipated expiration: 2040-06-15
Also published as: CN113803755B

Abstract

The invention discloses a range hood. The range hood comprises a flow guide part, a condensation part and a driving assembly. The air guide piece is provided with an air inlet channel and an air inlet, and the air inlet channel is communicated with the air inlet. The condensing part can be movably connected in the air inlet channel. The condensing member can be located at a first position and a second position, and can be switched back and forth between the first position and the second position. Under the condition of the first position, the condensing part is gathered on the side wall of the air inlet channel. In the second position, the condenser member divides the inlet air channel into at least two air flow channels. The driving component is connected with the condensing part and used for driving the condensing part to move so that the condensing part can be switched between the first position and the second position. Above-mentioned range hood, drive assembly can drive the condensation spare and make a round trip to switch at primary importance and second place, can realize many air current runners like this for oil smoke or air current get into range hood's inside sooner, prevent that the oil smoke is excessive, promote the oil absorption cigarette effect.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of household appliances, in particular to a range hood.

Background

In the related art, the range hood is usually provided with a condensation plate below the air inlet of the guide plate, and the surface area of the condensation plate is larger than that of the air inlet, so that oil and water dropping from the inside of the range hood can be effectively blocked. In addition, in the smoking process, the area of the condensing plate is large, so that the negative pressure area at the bottom of the range hood is expanded, the smoking capability around the range hood is enhanced, and the oil smoke is prevented from overflowing. In addition, in the cooking process, as the oil fume firstly contacts the condensing plate in the rising process, the oil fume is more easily intercepted by the filter screen after being condensed by the condensing plate.

The condensation plate is usually fixed to the air inlet side of the air inlet, so that the channel formed between the condensation plate and the baffle is of a fixed width. However, the fixed width of the channel does not accommodate the variation in the size of the oil smoke and may affect the effect of oil smoke extraction.

Disclosure of Invention

The embodiment of the invention provides a range hood.

The range hood of the embodiment of the invention comprises:

the air guide piece is provided with an air inlet channel and an air inlet, and the air inlet channel is communicated with the air inlet;

the condensation piece can be movably connected in the air inlet channel, can be positioned at a first position and a second position and can be switched back and forth between the first position and the second position, under the condition of the first position, the condensation piece is gathered on the side wall of the air inlet channel, and under the condition of the second position, the condensation piece divides the air inlet channel into at least two airflow channels; and

the driving assembly is connected with the condensing part and used for driving the condensing part to move so that the condensing part can be switched back and forth between the first position and the second position.

Above-mentioned range hood, drive assembly can drive the condensation spare and make a round trip to switch at primary importance and second place, can realize many air current runners like this for oil smoke or air current get into range hood's inside sooner, prevent that the oil smoke is excessive, promote the oil absorption cigarette effect.

In some embodiments, the number of the air inlet channels is two, the condensing member is disposed in each air inlet channel, an air guide member is disposed between the two air inlet channels, the condensing member is movably connected to the air guide member, the condensing member is folded on a side wall of the air guide member in the case of the first position, one air flow channel is formed between the condensing member and the air guide member in the case of the second position, and at least one air flow channel is formed between the condensing member and the air guide member.

Therefore, the oil smoke in different areas can be sucked into the range hood.

In some embodiments, the driving assembly is used for driving the condensation member to perform a combined motion of rotation and translation during the movement of the condensation member.

Therefore, the condensing part can be switched back and forth between the first position and the second position, and the switching of the multiple airflow channels is realized.

In some embodiments, imparting a combined rotational and translational motion to the condensing element comprises one of:

simultaneously performing a combined rotational and translational motion on the condensing member;

rotating the condensing part and then translating;

so that the condensing part firstly translates and then rotates.

In this way, the driving component can drive the condensing part to switch back and forth between the first position and the second position in various ways.

In some embodiments, the number of the condensing members is two, the driving assembly includes a driving member and a transmission assembly, the transmission assembly includes a first transmission mechanism and a second transmission mechanism, the first transmission mechanism connects the driving member and one of the condensing members, and the second transmission mechanism connects the first transmission mechanism and the other condensing member.

Thus, one driving member can drive two condensing members simultaneously, and the two condensing members can operate synchronously.

In some embodiments, each of the first and second transmission mechanisms comprises:

the swing arm comprises a head and an arm part connected to one side of the head;

rotating the rod; and

the upset pole is along keeping away from the head direction, the one end of dwang with the one end of upset pole is connected with rotating respectively in proper order the arm, the other end of dwang is connected with rotating the condensation piece, the other end of upset pole is connected with rotating the condensation piece, the dwang with the condensation piece connect the first junction that forms with the upset pole with the condensation piece is connected the second junction that forms at a distance, first drive mechanism's head is connected the driving piece with second drive mechanism's head.

So, realized that the rotation of dwang and arm is connected and be connected with the rotation of condensation piece, realized the rotation of upset pole and arm and be connected with the rotation of condensation piece, the condensation piece can be done simultaneously and rotate and translation motion, and two condensation pieces can basic simultaneous movement.

In some embodiments, the head of the first transmission mechanism is connected to the head of the second transmission mechanism by engagement.

Therefore, the connection between the first transmission mechanism and the second transmission mechanism is tighter, and the head part of the first transmission mechanism and the head part of the second transmission mechanism are prevented from sliding relatively.

In some embodiments, the range hood includes a guide assembly, the guide assembly includes a guide rail and a connector, the connector is slidably connected to the guide rail, one of the guide rail and the connector is connected to the sidewall of the air intake channel, and the other of the guide rail and the connector is connected to the condensing member.

In this way, the condensation member is more stable during translational movement.

In some embodiments, the number of the condensing members is two, the driving assembly includes two driving members and a transmission assembly, the transmission assembly includes a first transmission mechanism and a second transmission mechanism, the first transmission mechanism connects one of the driving members and one of the condensing members, and the second transmission mechanism connects the other of the driving members and the other of the condensing members.

Thus, one driving member drives one condensing member, and the two condensing members can be operated independently.

rotating the rod; and

one end of the rotating rod and one end of the turning rod are respectively and rotatably connected with one end of the arm part along the direction far away from the head part, the other end of the rotating rod is rotatably connected with the condensing part, the other end of the turning rod is rotatably connected with the condensing part,

the dwang with the condensation piece is connected the first junction that forms with the upset pole with the condensation piece is connected the second junction that forms and is kept away from a distance, one of them is connected to first drive mechanism's head the driving piece, another is connected to second drive mechanism's head the driving piece.

Thus, a driving part drives a condensing part to simultaneously perform a composite motion of rotation and translation.

In some embodiments, the range hood includes a controller and a smoke sensor, the controller is connected to the smoke sensor and the driving assembly, the smoke sensor is configured to detect a size of smoke in the air intake channel, the controller is configured to control the driving assembly to drive the condensing element to be located at the first position or the second position according to the size of the smoke, or the controller is configured to control the driving assembly to drive the condensing element to be located at the first position or the second position according to gear information of the range hood.

Therefore, the range hood can automatically control or control the condensing part to be positioned at the first position or the second position according to the gear information so as to meet the pumping and exhausting of oil smoke with different sizes.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

fig. 1 is a perspective structural view of a condensing member of a range hood according to an embodiment of the present invention at a first position;

fig. 2 is a perspective structural view of a condensing member of the range hood according to the embodiment of the present invention at a second position;

FIG. 3 is a partially exploded view of the range hood according to the embodiment of the present invention;

fig. 4 is a three-dimensional structural view of the driving assembly and the condensing member when the condensing member of the extractor hood according to the embodiment of the present invention is at the first position;

fig. 5 is a three-dimensional structural view of the driving assembly and the condensing member when the condensing member of the extractor hood according to the embodiment of the present invention is at the second position;

fig. 6 is a plan structural view of a condensing member of the range hood according to the embodiment of the present invention at a second position;

FIG. 7 is an enlarged schematic view of section VI of FIG. 3;

fig. 8 is a partial structural view of a range hood according to an embodiment of the present invention;

fig. 9 is another part of the structure of the range hood according to the embodiment of the present invention;

fig. 10 is a structural view of another part of a range hood according to an embodiment of the present invention;

fig. 11 is a perspective structural view of a condensing part of the range hood according to the embodiment of the present invention;

fig. 12 is a schematic block diagram of a range hood according to an embodiment of the present invention.

Description of the main element symbols:

the range hood 100, the flow guide element 10, the air inlet channel 12, the airflow channel 121, the air inlet 14, the filter screen 15, the condensing element 20, the first protrusion 221, the second protrusion 222, the third protrusion 223, the sixth through hole 24, the seventh through hole 26, the eighth through hole 28, the first connection 21, the second connection 23, the driving component 30, the driving component 32, the motor 322, the output shaft 3222, the transmission component 34, the first transmission mechanism 342, the swing arm 3422, and the head 34222, the range hood comprises an arm part 34224, a third through hole 34226, a fourth through hole 34228, a fifth through hole 34221, a rotating rod 3424, a turnover rod 3426, a first connecting hole 3428, a second connecting hole 3421, a third connecting hole 3423, a fourth connecting hole 3425, a second transmission mechanism 344, a body 40, an air guide member 50, a fixing member 52, a fixing plate 522, a first through hole 524, a second through hole 526, a guide assembly 60, a guide rail 62, a connecting member 64, a fifth connecting hole 66, a controller 70 and a lampblack sensor 80.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 3, a range hood 100 according to an embodiment of the present invention includes a flow guide member 10, a condensation member 20, and a driving assembly 30. The flow guide member 10 is provided with an air inlet channel 12 and an air inlet 14, and the air inlet channel 12 is communicated with the air inlet 14. The condensation member 20 can be movably connected in the air intake passage 12. The condensing member 20 can be located at a first position and a second position, and can be switched back and forth between the first position and the second position. In the first position (as shown in fig. 1), the condensation member 20 is gathered at the side wall of the air intake duct 12. In the second position (as shown in fig. 2), the condensation member 20 divides the air intake channel 12 into at least two air flow channels 121. The driving assembly 30 is connected to the condensing element 20 and is configured to drive the condensing element 20 to move so that the condensing element 20 switches between the first position and the second position.

In the range hood 100, the driving assembly 30 can drive the condensing part 20 to switch between the first position and the second position, so that the multiple airflow channels 121 can be realized, oil smoke or airflow can enter the range hood 100 more quickly, the oil smoke is prevented from overflowing, and the oil smoke absorption effect is improved.

It can be understood that, in the cooking process, oil smoke is generated, and under the condition that the range hood 100 works normally, a negative pressure region exists at the air inlet channel 12, and the rising oil smoke flows through the air inlet channel 12 under the action of the negative pressure region to enter the interior of the range hood 100 and then is exhausted to the outside. In the cooking processes of stewing, boiling and the like, the generated oil smoke amount is small, and the condensing part 20 can be positioned at the first position, so that the emission of the small oil smoke amount is realized; during the cooking process of frying, stir-frying, deep-frying and the like, the generated oil smoke amount is large, and the condensing member 20 can be located at the second position, so that the emission of large oil smoke amount is realized. In addition, the oil smoke is easily affected by the outside in the process of rising, for example, the wind blown from the window, people walking in front of the range hood 100 and other situations can cause the oil smoke to drift or overflow the air intake channel 12 in the process of rising, causing part of the oil smoke to escape and be unable to be exhausted by the range hood 100, under the situation that the condensing part 20 is changed from the first position to the second position, the position of the negative pressure region moves downwards and the range of the negative pressure region is enlarged, the time required for the oil smoke to rise to the negative pressure region is shortened, the oil smoke can be exhausted by the range hood 100 more quickly, thereby reducing the influence of the external environment on the oil smoke absorption effect and improving the performance of the range hood 100.

Specifically, range hood 100 also includes a body 40. The flow guide 10, the condensing member 20 and the driving assembly 30 are provided at the bottom of the body 40. The air inlet channel 12 adopts a ladder-shaped cavity structure with a downward opening. In the illustrated embodiment, the air guide 10 is partitioned into two air inlet passages 12 by the air guide 50. The ladder-shaped cavity comprises five cavity surfaces, namely an upper bottom surface, four waist surfaces and the like, and the longitudinal section of the air inlet channel 12 is in a ladder shape. The air inlet 14 is disposed on the upper bottom surface of the air inlet channel 12, and in the embodiment shown in fig. 1, the air inlet 14 is further provided with a filter screen 15. But filter screen 15 filterable oil smoke, when the oil smoke passed inside filter screen 15 got into body 10, partly oil smoke liquefaction becomes oil drop and adsorbs on filter screen 15, prevents that a large amount of oil smoke from getting into inside body 10, reduces the inside greasy dirt of body 10 and piles up the influence to range hood 100 working property. The filter screen 15 can also effectively prevent arms, hairs and the like from entering the body 10, thereby improving the safety of the range hood 100 in the using process. In the process of raising the oil smoke, the air intake channel 12 always wraps up the oil smoke to prevent the oil smoke from overflowing, and effectively sucks the indoor oil smoke into the range hood 100 and discharges the oil smoke to the outside. It is understood that in other embodiments, the number of the air intake channels 12 may be one or more than two, and is not limited thereto.

A fan assembly (not shown) is arranged in the body 40, the fan assembly includes a volute and a fan located in the volute, and when the fan is started, airflow enters from the volute air inlet and is discharged from the volute air outlet. Therefore, when the blower is started, a negative pressure is formed at the air inlet of the volute, and a negative pressure area is formed in the air inlet channel 12.

The condensing member 20 is of a sheet type structure, and the driving assembly 30 drives the condensing member 20 to switch between the first position and the second position and keeps the state of being located at the first position or the second position. In the first position, the condensation member 20 is folded on the side wall of the air inlet channel 12, and the condensation member 20 has a small influence on the position of the negative pressure region of the air inlet channel 12; in the second position, the condensing part 20 is opened at a certain angle relative to the side wall of the air intake channel 12, as in the embodiment shown in fig. 2, the condensing part 20 is opened at a certain angle relative to the air intake channel 12 and then is substantially parallel to the horizontal plane, and the condensing part 20 separates the air intake channel 12 into at least two airflow channels 121, after the rising oil smoke encounters the condensing part 20, a part of the oil smoke liquefies into oil drops and adheres to the surface of the condensing part 20, because the negative pressure region moves down and expands outward, the time for the other part of the oil smoke to rise from the pan to the negative pressure region becomes short, and the oil smoke rapidly enters the interior of the range hood 100 through the at least two airflow channels 121 and is further rapidly discharged. It is understood that in other embodiments, the second position may be other positions between the position of the condensing member 20 shown in fig. 1 and the position of the condensing member 20 shown in fig. 2, and is not particularly limited herein. The number of second positions can be calibrated according to specific conditions.

In the embodiment shown in fig. 1-3, the number of the air inlets 14 is one, and the air inlets are formed on the upper bottom surface of the air inlet channel 12 and correspondingly communicate with the two air inlet channels 12. In other embodiments, the number of the air inlets 14 may include two or more than two, and each air inlet 14 may be disposed on one or more of the upper bottom surface and the four waist surfaces of the air intake duct 12. The number and the arrangement positions of the air inlets 14 are not limited, and the requirement that the air inlet volume of the air inlets 14 can meet the requirement of sucking and discharging clean oil smoke can be met. It should be noted that, in other embodiments, the flow guiding member may also be substantially flat, an air inlet channel substantially in a rectangular shape is formed in the flow guiding member, and the condensing member may be switched between the first position and the second position to change the number of the airflow channels of the air inlet channel, thereby implementing multiple airflow channels, so that the oil smoke or the airflow can enter the interior of the conventional range hood more quickly, preventing the oil smoke from overflowing, and improving the oil smoke absorption effect.

Referring to fig. 1 and 2, in some embodiments, the number of the air inlet channels 12 is two, and a condensing member 20 is disposed in each air inlet channel 12. An air guide 50 is provided between the two air intake passages 12, and the air guide 50 is movably connected to the condenser 20. In the first position, the condenser 20 is folded on the side wall of the air guide 50. In the second position, an airflow channel 121 is formed between the condensation member 20 and the air guide member 50, and at least one airflow channel 121 is formed between the condensation member 20 and the air guide member 10.

Thus, the oil smoke in different areas can be sucked into the range hood 100. It will be appreciated that each air inlet channel 12 may correspond to a cooking position, for example the cooking hob is a gas stove comprising two burners, each air inlet channel 12 corresponding to a burner. The oil smoke is easy to drift or overflow the air inlet channel 12 in the rising process, that is, the oil smoke is located at different positions of the bottom of the body 40, because the bottom of the body 40 is provided with two air inlet channels 12, each air inlet channel 12 is divided into at least two airflow channels 121 when the condensing part 20 is located at the second position, for the oil smoke located at any cooking position, the range hood 100 can suck the oil smoke into the interior of the range hood 100 through the corresponding airflow channels 121, thereby realizing the pumping and exhausting of the oil smoke in different areas.

Specifically, the air guide 50 is approximately disposed at the middle portion of the bottom of the air guide 10, the air guide 50 divides the inside of the air guide 10 into two air inlet channels 12, the two air inlet channels 12 have substantially the same size, the two air inlet channels 12 are both trapezoidal cavities with downward openings, and the two cavities are separated by the air guide 50, so that the inside of the air guide 10 is divided into two independent air inlet channels 12. The open ends of the two air inlet channels 12 are respectively aligned with two burners on the cooking bench surface, namely, aligned with the center of the smoke source, so that mutual interference of oil smoke between two stations is prevented. When the condensing element 20 is located at the first position, each air inlet channel 12 is an independent air flow channel 121, and the rising oil smoke passes through the two air inlet channels 12 and enters the interior of the range hood 100 through the air inlet 14 under the guidance of the guiding element 10. When the condensing element 20 is located at the second position, each air inlet channel 12 is divided into at least two air flow channels 121 by the condensing element 20, and the air flow channel 121 formed between the condensing element 20 and the air guide element 50 is smaller than the air flow channel 121 formed between the condensing element 20 and the air guide element 10, that is, the air inlet area of the air flow channels 121 on the two sides below the air guide element 10 is larger than that of the air flow channel 121 in the middle, that is, the negative pressure area is larger, so that the oil smoke overflowing from the air inlet channel 12 can be sucked into the range hood 100 in time.

Since the air guide 50 divides the space inside the air guide 10 into two air inlet channels 12, one side of the air guide 50 can be the side wall of the air inlet channel 12, for example, in the embodiment shown in fig. 1, for the left air inlet channel 12, the left side wall of the air guide 50 can be the right side wall of the left air inlet channel 12, and the condenser 20 is closed at the left side wall of the air guide 50, that is, the right side wall of the left air inlet channel 12 when located at the first position. For the right air inlet channel 12, the right side wall of the air guiding element 50 may be the left side wall of the right air inlet channel 12, and the condensing element 20 is folded at the right side wall of the air guiding element 50, i.e. the left side wall of the right air inlet channel 12, when located at the first position.

Referring to fig. 4 and 5, in some embodiments, the driving assembly 30 is configured to drive the condensing element 20 to perform a combined rotation and translation motion during the movement of the condensing element 20.

In this way, the condensing element 20 can be switched between the first position and the second position, and the switching of the multiple airflow channels 121 is realized. Specifically, in the case of the first position, the condensation member 20 is inclined at a certain angle with respect to the horizontal plane and is collected on the sidewall of the air inlet channel 12, each air inlet channel 12 is an independent airflow channel 121, and in the case of the second position, the condensation member 20 is opened at a certain angle with respect to the sidewall of the air inlet channel 12 and is spaced from the sidewall of the air inlet channel 12, and each air inlet channel 12 is divided into at least two airflow channels 121. The inclination angle of the condensing member 20 can be changed by rotating the condensing member 20, so that the position of the negative pressure region can be adjusted by the condensing member 20 and at least two airflow channels 121 are formed. The translation can change the distance between the condensation member 20 and the side wall of the air inlet channel 12, so that another airflow channel 121 is formed between the condensation member 20 and the side wall of the air inlet channel 12.

In the embodiment shown in fig. 1 and 2, the side wall of the wind guide 50 may serve as the side wall of the air intake channel 12, and during the movement from the first position to the second position, the condensation member 20 rotates, the condensation member 20 opens at a certain angle relative to the side wall of the wind guide 50, the condensation member 20 translates, and the condensation member 20 moves at a certain distance relative to the side wall of the wind guide 50.

Referring to fig. 2 and fig. 6, when the condensing element 20 is located at the second position, the condensing element 20 in the air intake channel 12 divides one air intake channel 12 into 4 airflow channels 121, so that, when the condensing element 20 is located at the second position, the oil smoke around the lower portion of the condensing element 20 can be quickly sucked away through the 4 airflow channels 121, thereby improving the oil smoke suction effect.

Specifically, in some embodiments, the combination of rotational and translational movement of the condensing member 20 includes one of: a combined rotational and translational movement of the condensation member 20; the condensing member 20 is rotated and then translated; so that the condensation member 20 is first translated and then rotated. In this manner, the driving assembly 30 can drive the condensing member 20 to switch back and forth between the first position and the second position in various ways.

In other embodiments, the driving assembly may cause the condensing element to perform one of a rotational movement and a translational movement during the operation of driving the condensing element, so as to switch the condensing element back and forth between the first position and the second position, i.e., the condensing element may be rotated to switch back and forth between the first position and the second position, or the condensing element may be translated to switch back and forth between the first position and the second position.

The embodiment of the present invention will be described in detail by taking as an example a combined motion of rotating and translating the condensation member 20 at the same time.

Specifically, referring to fig. 4 and 5, the number of the condensing members 20 is two, and the driving assembly 30 includes a driving member 32 and a transmission assembly 34. The transmission assembly 34 includes a first transmission 342 and a second transmission 344. The first transmission mechanism 342 connects the driving member 32 and one of the condensation members 20, and the second transmission mechanism 344 connects the first transmission mechanism 342 and the other condensation member 20.

Thus, one driving member 32 can drive two condensing units 20 simultaneously, and the two condensing units 20 can operate synchronously. Specifically, the driving assembly 30 is partially provided inside the wind guide 50. A fixing member 52 is provided inside the air guide 50, and the fixing member 52 fixes the driving member 32 at a rear position of the air guide 50. The drive member 32 includes a motor 322. Referring to fig. 7, the fixing member 52 includes a fixing plate 522, a first through hole 524 and a second through hole 526, the first through hole 524 and the second through hole 526 are opened on the fixing plate 522, an output shaft 3222 of the motor 322 passes through the first through hole 524 to be connected with the first transmission mechanism 342, the second transmission mechanism 344 is rotatably connected with the fixing member 52 through the second through hole 526, and the second transmission mechanism 344 is connected with the first transmission mechanism 342. The condensation member 20 is rotatably connected to the transmission assembly 34. When the motor 322 is operated, the first transmission mechanism 342 rotates synchronously with the output shaft 3222 of the motor 322, and the second transmission mechanism 344 rotates synchronously with the first transmission mechanism 342, i.e., the first transmission mechanism 342 and the second transmission mechanism 344 rotate substantially synchronously with the output shaft 3222, so that the synchronous operation of the two condensing elements 20 is realized. In other embodiments, the fixing member 52 may be disposed at a front position, a middle position, or other positions in the middle of the front and rear sides of the wind guide 50. The driving part can also adopt other driving parts, such as a relay, and the relay can convert the translational motion into the rotation through a link mechanism, so that the same driving effect as the output shaft of the motor can be realized.

Referring to fig. 8-11, in some embodiments, each of the first and

second actuators

342, 344 includes a swing arm 3422, a rotation lever 3424, and a flipping lever 3426. The swing arm 3422 includes a head portion 34222 and an arm portion 34224 attached to one side of the head portion 34222. In a direction away from the head portion 34222, one end of the rotating rod 3424 and one end of the reversing rod 3426 are rotatably connected to the arm portion 34224 in turn, the other end of the rotating rod 3424 is rotatably connected to the condensing member 20, and the other end of the reversing rod 3426 is rotatably connected to the condensing member 20. A first junction 21 where the rotating rod 3424 is connected to the condensing member 20 and a second junction 23 where the turn rod 3426 is connected to the condensing member 20 are spaced apart from each other. The head 34222 of the first transmission mechanism 342 connects the driving member 32 and the head 34222 of the second transmission mechanism 344.

In this manner, the condensing elements 20 are capable of both rotational and translational movement, and the two condensing elements 20 are substantially simultaneously movable. It can be understood that, since the swing arm 3422 connects the rotating rod 3424 and the turning rod 3426, the condensing member 20 turns upwards and simultaneously approaches to both sides of the air guide member 50, and the condensing member 20 opens downwards and simultaneously opens to both sides of the air guide member 50, so that the airflow channel 121 below the air guide member 10 can be changed according to the position of the condensing member 20.

Specifically, the swing arm 3422 is provided with a third through hole 34226, a fourth through hole 34228, and a fifth through hole 34221. The third through hole 34226 is located at the head 34222 of the swing arm 3422, and for the first transmission mechanism 342, the output shaft 3222 of the motor 322 passes through the first through hole 524 and the third through hole 34226, so that the first transmission mechanism 342 and the motor 322 rotate synchronously. For the second transmission mechanism 344, the third through hole 34226 and the second through hole 526 can be rotatably connected through a rotating shaft (not shown), so that the swing arm 3422 of the second transmission mechanism 344 is rotatably connected with the fixing member 52.

A fourth through hole 34228 and a fifth through hole 34221 are located on the arm portion 34224 of the swing arm 3422, wherein the fourth through hole 34228 is close to the head portion 34222 of the swing arm 3422 and the fifth through hole 34221 is far from the head portion 34222 of the swing arm 3422. Referring to fig. 11, a surface of the condensing element 20 facing the transmission mechanism is provided with a first protrusion 221 and a second protrusion 222. The first protrusion 221 has a sixth through hole 24, and the second protrusion 222 has a seventh through hole 26, wherein the first protrusion 221 is close to the edge of the condensation member 20, and the second protrusion 222 is close to the other edge of the condensation member 20.

Referring to fig. 8, one end of the rotating rod 3424 is formed with a first connecting hole 3428, and the other end is formed with a second connecting hole 3421. One end of the turning bar 3426 is opened with a third connecting hole 3423, and the other end is opened with a fourth connecting hole 3425. The first connection hole 3428 is rotatably connected to the fourth connection hole 34228 via a rotation shaft, and the second connection hole 3421 is rotatably connected to the sixth connection hole 24 via a rotation shaft to form a first connection portion 21. In this manner, the rotational connection of the rotating lever 3424 with the arm portion 34224 and the rotational connection with the condensation member 20 are achieved. It is understood that in other embodiments, one of the arm portion 34224 and the rotating rod 3424 is provided with a rotating shaft, and the other is provided with a through hole or a connecting hole, and the rotating connection between the arm portion 34224 and the rotating rod 3424 can also be realized by the rotating shaft being rotatably connected with the through hole or the connecting hole.

The third connecting hole 3423 is rotatably connected to the fifth connecting hole 34221 through a rotating shaft, and the fourth connecting hole 3425 is rotatably connected to the seventh connecting hole 26 through a rotating shaft to form a second connecting portion 23. In this manner, the turning bar 3426 is rotatably connected to the arm part 34224 and rotatably connected to the condensation member 20. It is understood that in other embodiments, one of the arm 34224 and the turning bar 3426 is provided with a rotating shaft, and the other is provided with a through hole or a connecting hole, and the arm 34224 and the turning bar 3426 can be rotatably connected by the rotating shaft.

When the motor 322 drives the swing arm 3422 of the first transmission mechanism 342, the rotating rod 3424 pulls the condensing element 20 at the first connection 21, the turning rod 3426 drives the condensing element 20 to move closer to or away from the air guiding element 50 at the second connection 23, and the condensing element 20 rotates around the rotating shaft of the first connection 21 under the driving of the turning rod 3426 because the first connection 21 is at a distance from the second connection 23.

In addition, since the head part 34222 of the first driving mechanism 342 is connected to the head part 34222 of the second driving mechanism 344, when the motor 322 drives the swing arm 3422 of the first driving mechanism 342, the swing arm 3422 of the second driving mechanism 344 swings synchronously, thereby achieving a substantially synchronous movement of the two condensing elements 20.

Referring to fig. 4, in some embodiments, the head 34222 of the first transmission mechanism 342 is engaged with the head 34222 of the second transmission mechanism 344. In this way, the connection between the first transmission mechanism 342 and the second transmission mechanism 344 is tighter, and the head portion 34222 of the first transmission mechanism 342 and the head portion 34222 of the second transmission mechanism 344 are prevented from sliding relatively. Specifically, the first transmission mechanism 342 and the second transmission mechanism 344 are connected through the head portion 34222 of the swing arm 3422, the head portion 34222 of the swing arm 3422 is provided with teeth on the periphery, the two swing arms 3422 are engaged with the teeth of the head portion 34222 to realize the opposite rotation directions of the two head portions 34222, and finally, the synchronous movement of the two condensing elements 20 is realized.

Referring to fig. 3-5, in some embodiments, range hood 100 includes a guide assembly 60. The guide assembly 60 includes a guide rail 62 and a connector 64. The connector 64 is slidably connected to the rail 62. One of the guide rail 62 and the connecting member 64 is connected to the side wall of the air supply passage 12, and the other of the guide rail 62 and the connecting member 64 is connected to the condensation member 20.

In this way, the condensation member 20 is more stable during the translational movement. Specifically, in the illustrated embodiment, the air guide 50 divides the inner space of the flow guide into two air inlet channels 12, the side wall of the air guide 50 may be one side wall of the air inlet channel 12, one of the guide rail 62 and the connecting member 64 is connected to the side wall of the air guide 50, and the other of the guide rail 62 and the connecting member 64 is connected to the condenser 20. In the embodiment shown in fig. 4 and 5, the guide unit 60 is partially provided inside the air guide 50, the guide rail 62 is connected to a side wall of the air guide 50, and the connecting member 64 is connected to the condenser 20. The connecting member 64 is rod-shaped, one end of the connecting member 64 connected with the condensing member is provided with a fifth connecting hole 66, and the connecting member 64 is partially accommodated in the guide rail 62 and can freely extend and retract in the guide rail 62. The condensing part 20 is provided with two spaced third protrusions 223 on one side surface facing the guide assembly 60, the two third protrusions 223 can correspond to one guide assembly 60, each third protrusion 223 is provided with an eighth through hole 28, the eighth through holes 28 of the two third protrusions 223 are coaxially arranged and are also coaxially arranged with the rotating shaft of the first connecting part 21, one end of the connecting part 64 is located between the two eighth through holes 28, the eighth through holes 28 are connected with the fifth connecting hole 66 through the rotating shaft, and the condensing part 20 can turn around the rotating shaft.

In the illustrated embodiment, the number of the guide assemblies 60 is two, that is, each of the condensing members 20 is rotatably connected to two of the guide assemblies 60, and four spaced third protrusions 223 are provided on a side surface of the condensing member 20 facing the guide assemblies 60. The two guide assemblies 60 are spaced apart a distance that makes the condensation more stable in translation. In other embodiments, the connecting member 64 may be connected to the side wall of the wind guide 50, the guide rail 62 may be connected to the condensing element 20, and the number of the guide assemblies 60 may include one, three, or more than three. In addition, the transmission mechanism may also include a slider-crank structure, which realizes the conversion of the movement modes of rotation and translation of the condensation member 20.

In some embodiments, the number of condensing elements is two and the drive assembly comprises two drive elements and a transmission assembly. The transmission assembly comprises a first transmission mechanism and a second transmission mechanism. The first transmission mechanism is connected with one of the driving members and one of the condensing members, and the second transmission mechanism is connected with the other driving member and the other condensing member. Thus, one driving member drives one condensing member, and the two condensing members can be operated independently.

Specifically, the structure of the transmission mechanism of this embodiment is substantially the same as that of the transmission mechanism of the above embodiment in which one driving member drives two condensing members to move simultaneously, and the difference is that the head of the first transmission mechanism is connected to one of the driving members, the head of the second transmission mechanism is connected to the other driving member, and the position of the driving members is also more flexibly set. Thus, a driving part drives a condensing part to simultaneously perform a composite motion of rotation and translation.

It will be appreciated that in other embodiments, the condensing element may be rotated first and then translated, or the condensing element may be translated first and then rotated.

In particular, in such an embodiment, two driving members may be provided, one driving member being responsible for the rotation of the condensation member (hereinafter referred to as rotary driving member) and the other driving member being responsible for the translation of the condensation member (hereinafter referred to as translational driving member). The condensation device can be used for driving the condensation part to rotate to a certain angle by utilizing the rotation driving part firstly and then driving the condensation part to translate for a certain distance by utilizing the translation driving part, and can also be used for driving the condensation part to translate for a certain distance by utilizing the translation driving part firstly and then driving the condensation part to rotate to a certain angle by utilizing the rotation driving part so as to realize the rotation and translation movement of condensation. The structure of the specific implementation can refer to the above-mentioned embodiment of the combined motion of rotation and translation, and can be modified appropriately, and will not be described in detail here.

Referring to fig. 12, in some embodiments, range hood 100 includes a controller 70 and a smoke sensor 80. The controller 70 is connected to the soot sensor 80 and the driving assembly 30. The smoke sensor 80 is used for detecting the size of smoke in the air intake passage 12. The controller 70 is used for controlling the driving assembly 30 to drive the condensing element 20 to be located at the first position or the second position according to the oil smoke size.

Therefore, the range hood 100 can automatically control the condensing element 20 to be located at the first position or the second position, so as to meet the requirements of exhausting oil smoke with different sizes. Specifically, oil smoke is generated during cooking, and the oil smoke rises into the air inlet channel 12.

In one embodiment, the smoke sensor 80 detects the amount of smoke in the air intake duct 12, compares the amount of smoke with a predetermined value, and in the case that the amount of smoke is smaller than the predetermined value, the smoke sensor 80 outputs a first electrical signal to the controller 70, wherein the first electrical signal is used to indicate that the amount of smoke is small. The controller 70 controls the driving assembly 30 to drive the condensing element 20 to be located at the first position according to the first electrical signal, the condensing element 20 is folded on the side wall of the air inlet channel 12, and the air inlet channel 12 is an independent airflow channel 121, so that the pumping and discharging of the small amount of oil smoke is realized. Under the condition that the oil smoke size is larger than or equal to the preset value, the oil smoke sensor 80 outputs a second electric signal to the controller 70, the second electric signal is used for indicating that the oil smoke is large, the controller 70 controls the driving component 30 to drive the condensing part 20 to be located at the second position according to the second electric signal, the condensing part 20 divides the air inlet channel 12 into at least two airflow channels 121, the position of the negative pressure region moves downwards, the range of the negative pressure region is enlarged, the oil smoke can enter the range of the range hood 100 more quickly, the oil smoke is prevented from overflowing, and therefore the pumping and exhausting of large oil smoke volume are achieved.

In another embodiment, the smoke sensor 80 detects the size of smoke in the air intake channel 12, outputs the size of the smoke to the controller 70, and the controller 70 compares the size of the smoke with a preset value, and when the size of the smoke is smaller than the preset value, the controller 70 controls the driving assembly 30 to drive the condensing element 20 to be located at the first position, the condensing element 20 is folded on the side wall of the air intake channel 12, and the air intake channel 12 is an independent airflow channel 121, so that the small amount of smoke is exhausted. Under the condition that the oil smoke size is larger than or equal to the preset value, the controller 70 controls the driving component 30 to drive the condensing part 20 to be located at the second position, the air inlet channel 12 is divided into at least two airflow channels 121 by the condensing part 20, the position of the negative pressure area moves downwards, the range of the negative pressure area is enlarged, the oil smoke can enter the interior of the range hood 100 more quickly, the oil smoke is prevented from overflowing, and therefore pumping and exhausting with large oil smoke amount are achieved.

It should be noted that two or more than two preset values can be provided, so that it is possible to divide the control interval into a plurality of control intervals, each control interval corresponding to a second position of a condensing element 20. Whether the condensation member 20 is located at the first position or which of the second positions is determined according to the amount of smoke detected by the smoke sensor 80. The corresponding relationship between the oil smoke size and the first position, and the second position can be calibrated by experiment and stored in the range hood 100.

The smoke sensor 80 may be installed on an inner wall of the air intake duct 12, an inner flue of the body 40, a duct connecting the common flue and the body 40, or a wall, or the like, and may detect the size of smoke, which is not limited herein. The smoke sensor 80 includes, but is not limited to, a light sensor and an organic compound molecule sensor (VOC sensor), the light sensor includes a light emitting element and a light receiving element, in some embodiments, the light emitting element and the light receiving element are disposed on the inner wall of the flue or the air duct at 180 degrees opposite to each other, smoke passes through the space between the light emitting element and the light receiving element, and the intensity of the light signal received by the light receiving element and emitted by the light emitting element is inversely related to the size of the smoke due to the shielding effect of smoke particles. In some embodiments, the light emitting element and the light receiving element form an acute included angle with each other and are disposed on the inner wall of the flue or the air duct, and when the oil smoke passes through the flue or the air duct or the channel, the intensity of the light signal received by the light receiving element and emitted by the light emitting element is positively correlated to the size of the oil smoke due to the reflection effect of the oil smoke particles. The VOC sensor can detect the concentration of organic molecules in the oil smoke, and can calibrate the relationship between the concentration of the organic molecules and the size of the oil smoke in advance, so that the size of the oil smoke can be detected.

The smoke sensor 80 may be provided in one, two or more, in two or more cases, the smoke size may be an average value of the smoke sizes detected by the two or more smoke sensors 80, or may be calculated values assigned according to different weights.

In some embodiments, range hood 100 includes controller 70. The controller 70 is connected to the drive assembly 30. The controller 70 is used for controlling the driving assembly 30 to drive the condensing element 20 to be located at the first position or the second position according to the gear information of the range hood 100.

Thus, according to the gear information set by the user, the range hood 100 can control the condensing element 20 to be located at the first position or the second position to assist in exhausting the oil smoke with different sizes. Specifically, the gear information may correspond to the rotation of the fan, when the user selects the range hood 100 as the low gear, the rotation speed of the fan is low, the intake air amount of the range hood 100 in unit time is low, and the controller 70 controls the driving assembly 30 to drive the condensing member 20 to be located at the first position, so as to assist in the pumping and discharging of the small amount of oil smoke; when the user selects the range hood 100 to be in the high gear, the rotating speed of the fan is high, the air intake of the range hood 100 in unit time is large, and the controller 70 controls the driving assembly 30 to drive the condensing part 20 to be located at the second position to assist in pumping and discharging of large oil smoke. The user may select a gear through keys (including physical keys and virtual keys) on the panel of the extractor hood 100, or select a gear on a terminal in communication with the extractor hood 100.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, comprising:

2. The range hood of claim 1, wherein the number of the air inlet channels is two, the condensing member is disposed in each air inlet channel, an air guide member is disposed between the two air inlet channels, the condensing member is movably connected to the air guide member, the condensing member is folded on a side wall of the air guide member in the case of the first position, one of the airflow channels is formed between the condensing member and the air guide member in the case of the second position, and at least one of the airflow channels is formed between the condensing member and the air guide member.

3. The range hood of claim 1, wherein the drive assembly is configured to drive the condensation member to perform a combined rotational and translational motion during movement of the condensation member.

4. The range hood of claim 3, wherein the compound motion of rotation and translation of the condensing member comprises one of:

rotating the condensing part and then translating;

so that the condensing part firstly translates and then rotates.

5. The range hood of claim 1, wherein the number of the condensing members is two, the driving assembly comprises a driving member and a transmission assembly, the transmission assembly comprises a first transmission mechanism and a second transmission mechanism, the first transmission mechanism connects the driving member and one of the condensing members, and the second transmission mechanism connects the first transmission mechanism and the other condensing member.

6. The range hood of claim 5, wherein each of the first transmission mechanism and the second transmission mechanism comprises:

rotating the rod; and

the turning rod is arranged in the direction away from the head, one end of the rotating rod and one end of the turning rod are sequentially and rotatably connected with the arm part, the other end of the rotating rod is rotatably connected with the condensing part, the other end of the turning rod is rotatably connected with the condensing part,

the dwang with the condensation piece is connected the first junction that forms with the upset pole with the condensation piece is connected the second junction that forms and is apart from a distance, first drive mechanism's head is connected the driving piece with second drive mechanism's head.

7. The range hood of claim 6, wherein the head of the first transmission mechanism is engaged with the head of the second transmission mechanism.

8. The range hood of claim 6, wherein the range hood comprises a guide assembly, the guide assembly comprises a guide rail and a connector, the connector is slidably connected with the guide rail, one of the guide rail and the connector is connected with the side wall of the air intake channel, and the other of the guide rail and the connector is connected with the condensing part.

9. The range hood of claim 1, wherein the number of the condensing members is two, the driving assembly comprises two driving members and a transmission assembly, the transmission assembly comprises a first transmission mechanism and a second transmission mechanism, the first transmission mechanism connects one of the driving members with one of the condensing members, and the second transmission mechanism connects the other of the driving members with the other of the condensing members.

10. The range hood of claim 9, wherein each of the first transmission mechanism and the second transmission mechanism comprises:

rotating the rod; and

11. The range hood of claim 1, wherein the range hood comprises a controller and a soot sensor, the controller is connected to the soot sensor and the driving assembly, the soot sensor is configured to detect a soot size in the air intake channel, the controller is configured to control the driving assembly to drive the condensing element to be located at the first position or the second position according to the soot size, or the controller is configured to control the driving assembly to drive the condensing element to be located at the first position or the second position according to gear information of the range hood.