Range hood

Abstract

The present application relates to the technical field of kitchen appliances, and discloses a range hood, in which a shell has a smoke collecting cavity, a front smoke inlet, side smoke inlets and a smoke outlet, the two side smoke inlets are respectively arranged on the two sides of the length direction of the shell; a fan is arranged in the smoke collecting cavity, the gas entering the volute of the fan from the front air inlet of the fan or the rear air inlet of the fan flows to the smoke outlet through the air outlet of the fan; at least two flaps are arranged on the shell and can move between the open position and the closed position to open or close the corresponding side smoke inlets; the two flaps can be opened simultaneously or individually; the front smoke inlet, the smoke collecting cavity, the front air inlet of the fan, the air outlet of the fan and the smoke outlet are sequentially communicated, and when the flaps are in the open position, the side smoke inlets, the smoke collecting cavity, the rear air inlet, the air outlet and the smoke outlet are sequentially communicated in the gas flow direction. The above arrangement improves the oil fume suction efficiency and is beneficial to ensuring the working efficiency of the fan.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and more particularly to a range hood. Background Technology

[0002] Ultra-thin range hoods (with a body thickness typically ≤250mm) are installed behind the cooktop. Their core advantages are space saving and improved aesthetics. However, to improve smoke extraction efficiency, the fan speed is usually increased. A fan generally consists of a motor and an impeller connected to the motor's output. High-speed fans require the motor to maintain a high rotation speed, leading to higher motor temperatures, which in turn affects motor performance and reduces fan efficiency. Additionally, to prevent smoke escape, a smoke guide plate is usually installed above the front smoke inlet. When opened, the smoke guide plate tilts forward and downward to guide the smoke smoothly into the smoke inlet. This design limits the use of tall cookware. Furthermore, when cooking utensils are used on the left or right sides of an ultra-thin range hood, the extraction effect is poor, impacting the user experience.

[0003] Therefore, there is an urgent need to research a range hood to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a range hood that solves the problems in the prior art, such as the high temperature of the motor affecting the efficiency of the fan, the limitation of the use of tall cookware due to the setting of the smoke guide plate, and the poor smoke extraction effect when cooking utensils are used on the left and right sides of the range hood.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A range hood, comprising:

[0007] The outer casing has a smoke collection chamber and a front smoke inlet, a side smoke inlet and a smoke outlet communicating with the smoke collection chamber. The front smoke inlet is located on the front side of the outer casing, and the two side smoke inlets are respectively located on both sides of the length direction of the outer casing.

[0008] A fan is disposed in the smoke collection chamber and located behind the inlet. Gas entering the volute of the fan from the front inlet or the rear inlet of the fan flows to the outlet through the outlet of the fan. The motor of the fan is located at least partially behind the impeller.

[0009] The flip cover, at least two of which are provided on the outer shell, and both can move between an open position and a closed position to open or close the corresponding side smoke inlet. The two flip covers can be opened simultaneously or individually. The front smoke inlet, the smoke collection chamber, the front air inlet of the fan, the air outlet of the fan, and the smoke outlet are connected in sequence. When the flip cover is in the open position, the side smoke inlet, the smoke collection chamber, the rear air inlet, the air outlet, and the smoke outlet are connected in sequence along the gas flow direction.

[0010] As an optional technical solution for a range hood, the flip cover is rotatably disposed on the outer casing. The flip cover includes a shielding body and at least one hinge portion disposed on the shielding body. The outer casing has at least one hinge engagement portion, and each hinge portion is correspondingly disposed in each hinge engagement portion.

[0011] As an optional technical solution for a range hood, the hinge is located at the top of the outer casing, the axis of the hinge extends along the thickness direction of the outer casing, and the hinge is located at the upper end of the shielding body. When the flip cover is in the open position, it tilts downward in a direction away from the smoke collection chamber.

[0012] As an optional technical solution for a range hood, the range hood further includes a driving component, which includes a driving body and a driving shaft. The driving shaft is telescopically disposed on the driving body along its own axial direction. The driving body is disposed in the smoke collection chamber and hinged to the outer shell. The flip cover also includes a connecting rod disposed on the shielding body. The outer shell is provided with a clearance channel for the connecting rod to pass through. The end of the driving shaft away from the driving body is hinged to the connecting rod to drive the flip cover to swing between the open position and the closed position.

[0013] As an optional technical solution for a range hood, the range hood includes two driving components, each of which is arranged in a one-to-one correspondence with one of the two flip covers, and each flip cover is driven to operate independently; and / or,

[0014] The drive unit is located at the upper end of the smoke collection chamber and above the side smoke inlet.

[0015] As an optional technical solution for a range hood, the flip cover is tilted when opened, and tilts backward from the outside towards the smoke collection chamber to guide the smoke entering from the side smoke inlet to flow to the rear side of the smoke collection chamber so as to enter the volute of the fan from the rear air inlet of the fan.

[0016] As an optional technical scheme of the range hood, the cover includes a cover body and a rotating part arranged on the cover body and matched with the shell, and an axis of the rotating part extends along a height direction of the shell; when the cover is in a closed position, the rotating part is located at a rear side of the cover body, and the cover is turned outward to open the side smoke inlet.

[0017] As an optional technical scheme of the range hood, the range hood further includes a driving part, a transmission part and output shafts, the driving part is arranged on the shell, the transmission part is movably arranged on the shell along a thickness direction of the shell and is in transmission connection with an output end of the driving part, the output shafts connected with the cover are movably constrained to the shell along a length direction of the shell, each of the output shafts has a matching part, the transmission part is provided with a guide part, and the guide part is in sliding connection with the matching part.

[0018] As an optional technical scheme of the range hood, the transmission part is provided with a first sliding groove extending from back to front and outward to form the guide part, one end of the output shaft is provided with a sliding block to form the matching part, the sliding block is slidably arranged in the first sliding groove, and the transmission part is capable of driving the sliding block to move to drive the cover to move to the open position during forward movement.

[0019] As an optional technical scheme of the range hood, the first sliding groove is a T-shaped groove with an opening facing the output shaft, and the sliding block is spherical, the transmission part is capable of driving the sliding block to move to drive the cover to move to the closed position during backward movement.

[0020] As an optional technical scheme of the range hood, the range hood includes a sliding base, the sliding base is arranged on the shell, the transmission part is slidably arranged on the sliding base, the sliding base is provided with a sliding channel, the output shaft includes a sliding rod and a hinged rod, the sliding rod is slidably arranged in the sliding channel, the sliding block is arranged at one end of the sliding rod, one end of the hinged rod is hinged to the other end of the sliding rod, and the other end of the hinged rod is hinged to the cover.

[0021] As an optional technical scheme of the range hood, the range hood further includes a transfer part and two transmission parts corresponding to two covers, two covers corresponding to two side smoke inlets are driven by two transmission parts, and two transmission parts are connected by the transfer part to move synchronously.

[0022] As an optional technical scheme of the range hood, each side smoke inlet corresponds to at least two covers, at least two covers corresponding to each side smoke inlet are arranged at intervals along a thickness direction of the shell and are matched with two output shafts, and the transmission part is provided with two guide parts arranged at intervals along the thickness direction of the shell.

[0023] As an optional technical solution of the range hood, the range hood further comprises a first filter screen, and the first filter screen is arranged at the front smoke inlet; and / or,

[0024] The range hood further comprises a second filter screen, and the second filter screen is arranged at the side smoke inlet.

[0025] The range hood has at least the following beneficial effects:

[0026] The range hood comprises a housing, a fan and a flip cover, wherein the housing has a smoke collecting cavity, and a front smoke inlet, a side smoke inlet and a smoke outlet which are communicated with the smoke collecting cavity, the front smoke inlet is arranged at the front side of the housing, and the two side smoke inlets are arranged at the two sides of the length direction of the housing; the fan is arranged in the smoke collecting cavity and located at the rear of the front smoke inlet, the gas entering the volute of the fan from the front air inlet of the fan or the rear air inlet of the fan flows to the smoke outlet through the air outlet of the fan, wherein the motor of the fan is at least partially located at the rear of the impeller; at least two flip covers are arranged on the housing and can move between an open position and a closed position to open or close the corresponding side smoke inlet, the two flip covers can be opened simultaneously or individually, the front smoke inlet, the smoke collecting cavity, the front air inlet of the fan, the air outlet of the fan and the smoke outlet are sequentially communicated, and when the flip cover is located at the open position, the side smoke inlet, the smoke collecting cavity, the rear air inlet, the air outlet and the smoke outlet are sequentially communicated in the direction of the gas flow.

[0027] The arrangement of the front smoke inlet and the side smoke inlet increases the smoke inlet area, thereby improving the oil fume suction efficiency. Through the arrangement of the side smoke inlet, the gas on the two sides of the length direction of the housing enters the smoke collecting cavity through the side smoke inlet, thereby entering the volute at the rear air inlet of the fan, in this process, the gas passes through the motor of the fan, carries away the heat generated by the motor, and cools the motor, so that the temperature of the motor is maintained within a preset range, thereby being beneficial to guaranteeing the working efficiency of the fan.

[0028] The high pot is generally a steamer, which generates steam and has less oil fume, and the steam can enter the smoke collecting cavity through the side smoke inlet by opening the flip cover, thereby meeting the use demand of the high pot and improving the use experience of the user.

[0029] Finally, even if the electric pressure cooker and other cookware are used beside the range hood on the cooking bench, the oil fume or steam can be sucked through the side smoke inlet, thereby guaranteeing the suction effect and cooling the motor to guarantee the efficiency of the fan. Further, the two flip covers can be opened simultaneously or individually to adapt to the use of the electric pressure cooker and other cookware at different positions of the range hood, and adapt to more application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the contents of the embodiments of the present application and these drawings without any creative effort.

[0031] Figure 1 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the cover is in the closed position.

[0032] Figure 2 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the cover is in the closed position.

[0033] Figure 3 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the cover is in the closed position.

[0034] Figure 4 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the rotating part of the cover extends along the height direction.

[0035] Figure 5 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the rotating part of the cover extends along the height direction.

[0036] Figure 6 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the rotating part of the cover extends along the height direction.

[0037] Figure 7 It is a structural schematic diagram of the range hood in the embodiment of the present application, and the rotating part of the cover extends along the height direction.

[0038] In the drawings:

[0039] 100, housing; 110, smoke collecting cavity; 120, front smoke inlet; 130, side smoke inlet; 140, smoke outlet;

[0040] 200, fan; 210, motor; 220, impeller; 230, front air inlet; 240, rear air inlet; 250, volute;

[0041] 300, cover; 310, shielding body; 311, connecting rod; 320, hinged part; 330, cover body; 340, rotating part;

[0042] 500, driving member; 510, driving body; 520, driving shaft; 530, transmission member; 531, first sliding groove; 5311, first smooth part; 5312, inclined part; 5313, second smooth part; 540, output shaft; 541, sliding block; 542, sliding rod; 543, hinged rod; 550, sliding base; 551, sliding rail; 560, transfer member;

[0043] 610, first filter screen; 620, second filter screen;

[0044] 700, guide plate. DETAILED DESCRIPTION

[0045] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings.

[0046] In this application, the terms "comprise", "comprising", "including", "including", "have", "having" or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0047] In this application, the term "and / or", is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this application generally represents a "and / or" relationship between the front and rear associated objects.

[0048] In this application, the terms "connection", "combination", "coupling", "installation" can be direct connection, combination, coupling or installation, or indirect connection, combination, coupling or installation. Among them, for example, direct connection means that two parts or components are connected together without setting intermediate parts, indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0049] In this application, those of ordinary skill in the art will appreciate that the use of relative terms (e.g., "about," "approximately," "substantially," etc.) in connection with a quantity or condition will be understood to include the stated value and possess the meaning indicated by the context. For example, the relative term will include at least the degree of error associated with the measurement of the particular value, tolerances associated with the manufacturing, assembly, use of the particular value, etc. Such terms should also be considered as disclosing a range that is defined by the absolute values of the two endpoints. The relative term can refer to a percentage (e.g., 1%, 5%, 10% or more) of the indicated value plus or minus. Values that are not preceded by the relative term should also be disclosed as specific values with tolerances. Furthermore, "substantially" when used in the context of expressing a relative angular positional relationship (e.g., substantially parallel, substantially perpendicular) can refer to plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0050] In this application, those of ordinary skill in the art will appreciate that a function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, a function performed by a part can be performed by one part, one component, or multiple parts in combination.

[0051] In this application, the terms "upper," "lower," "left," "right," "front," "back," and the like are described with reference to the orientation and position shown in the drawings, and should not be construed to limit the embodiments of the present application. In addition, it should also be understood that when referring to an element being connected to another element "on" or "under," it can be directly connected to the other element "on" or "under," or indirectly connected to the other element "on" or "under" through an intermediate element. It should also be understood that the terms "upper," "lower," "left," "right," "front," "back," and the like represent not only the positive directions, but also the side directions. For example, the lower side can include the positive lower side, the left lower side, the right lower side, the front lower side, and the back lower side, etc.

[0052] As Figures 1 to 3As shown, the embodiment provides an oil fume extractor, which comprises a housing 100, a fan 200 and a flip cover 300, wherein the housing 100 has a smoke collecting cavity 110, a front smoke inlet 120, side smoke inlets 130 and a smoke outlet 140, the front smoke inlet 120 is arranged at the front side of the housing 100, and the two side smoke inlets 130 are arranged at the two sides of the length direction of the housing 100; the fan 200 is arranged in the smoke collecting cavity 110 and located behind the front smoke inlet 120, the gas entering the volute 250 of the fan 200 from the front air inlet 230 of the fan 200 or the rear air inlet 240 of the fan 200 flows to the smoke outlet 140 through the air outlet of the fan 200, wherein the motor 210 of the fan 200 is at least partially located behind the impeller 220; at least two flip covers 300 are arranged on the housing 100 and can move between the open position and the closed position to open or close the corresponding side smoke inlet 130, the two flip covers 300 can be opened simultaneously or individually, the front smoke inlet 120, the smoke collecting cavity 110, the front air inlet 230 of the fan 200, the air outlet of the fan 200 and the smoke outlet 140 are sequentially communicated, and when the flip cover 300 is located at the open position, the side smoke inlet 130, the smoke collecting cavity 110, the rear air inlet 240, the air outlet and the smoke outlet 140 are sequentially communicated in the direction of gas flow. The length direction is the left-right direction.

[0053] The arrangement of the front smoke inlet 120 and the side smoke inlet 130 increases the smoke inlet area, thereby improving the oil fume suction efficiency. Through the arrangement of the side smoke inlet 130, the gas on both sides of the length direction of the housing 100 enters the smoke collecting cavity 110 through the side smoke inlet 130, thereby entering the volute 250 at the rear air inlet 240 of the fan 200. In this process, the gas passes through the motor 210 of the fan 200, taking away the heat of the motor 210, thereby facilitating heat dissipation of the motor 210 and ensuring the working efficiency of the fan 200.

[0054] The high pot is generally a steamer, which generates steam and has less oil fume. The steam can enter the smoke collecting cavity 110 from the side smoke inlet 130 by opening the flip cover 300, thereby meeting the use demand of the high pot and improving the user experience.

[0055] Finally, even if the electric pressure cooker is used on the left side or the right side of the oil fume extractor on the cooking bench, the oil fume or steam can be sucked through the side smoke inlet 130, thereby ensuring the suction effect and cooling the motor 210 to ensure the efficiency of the fan 200. Further, the two flip covers 300 can be opened simultaneously or individually to adapt to the use of the electric pressure cooker and other cookware at different positions of the oil fume extractor, thereby adapting to more application scenarios.

[0056] Regarding the connection mode of the cover 300, in some embodiments, the cover 300 is rotatably arranged on the housing 100, the cover 300 comprises a shielding body 310 and at least one hinge portion 320 arranged on the shielding body 310, the housing 100 has at least one hinge matching portion, and each hinge portion 320 is arranged in the corresponding hinge matching portion. The rotatably arranged cover 300 is convenient to connect and drive.

[0057] In the above structure, the hinge portion 320 is located at the top of the housing 100, the axis of the hinge portion 320 extends along the thickness direction of the housing 100, and the hinge portion 320 is located at the upper end of the shielding body 310. When the cover 300 is in the open position, it is inclined downward away from the smoke collecting cavity 110. When the range hood has oil fumes on both sides, it can intercept and guide the upward escaping oil fumes, and make the oil fumes smoothly enter the side smoke inlet 130. At the same time, the above structure makes the space below larger after the cover 300 is opened, and the space becomes larger and larger downward, which is convenient for placing cookware with a larger height and reduces the possibility of interference. The thickness direction is the front-rear direction.

[0058] In combination with the specific structure of the cover 300 described above, in order to facilitate driving, in some embodiments, the range hood further comprises a driving member 500, the driving member 500 comprises a driving body 510 and a driving shaft 520, the driving shaft 520 is telescopically arranged on the driving body 510 along the axis direction of the driving shaft 520, the driving body 510 is arranged in the smoke collecting cavity 110 and is hinged to the housing 100, the cover 300 further comprises a connecting rod 311 arranged on the shielding body 310, the housing 100 is provided with an avoiding passage for the connecting rod 311 to pass through, and one end of the driving shaft 520 away from the driving body 510 is hinged to the connecting rod 311 to drive the cover 300 to swing between the open position and the closed position. In this embodiment, the driving member 500 can be a push rod motor. The arrangement of the driving member 500 improves the operation convenience of the cover 300, avoids the oil stains from sticking to the hand during manual operation, and improves the user experience.

[0059] In some embodiments, the range hood comprises two driving members 500, the two driving members 500 are arranged one-to-one corresponding to the two covers 300, and the two covers 300 are driven to act individually, so as to adapt to the installation space on both sides of the length direction of the range hood and the use of the cookware. For example, when a rice cooker or other cookware is used on the left side of the range hood, the cover 300 on the left side can be opened alone to suck the oil fumes on the left side of the range hood.

[0060] Considering that the hinge 320 is located at the top of the housing 100, in order to reduce the travel distance of the drive shaft 520 during the driving process, in some embodiments, the drive component 500 is located at the upper end of the smoke collection chamber 110 and above the side smoke inlet 130. This arrangement minimizes the extension and retraction distance of the drive shaft 520, improving driving efficiency; simultaneously, it helps to reduce the length of the drive component 500, minimizing its impact on the internal space of the smoke collection chamber 110; finally, after the range hood stops working, the small amount of residual oil fumes inside will naturally settle downwards and eventually flow into the oil cup, reducing the probability of adhering to the drive component 500, reducing corrosion of the drive component 500, and ensuring the driving sensitivity and service life of the drive component 500.

[0061] To improve the cleanliness of the fumes entering the smoke collection chamber 110, in some embodiments, the range hood further includes a first filter 610, which is disposed at the front smoke inlet 120. Similarly, the range hood also includes a second filter 620, which is disposed at the side smoke inlet 130. The first filter 610 is detachably connected to the front side wall of the housing 100. One of the second filters 620 is detachably intercepted on the left side wall of the housing 100, and the other second filter 620 is detachably connected to the right side wall of the housing 100. In some embodiments, the range hood further includes a guide plate 700, which is hinged to the housing 100 and can open or close the front smoke inlet 120. The opening and closing mechanism of the guide plate 700 can be driven by a push rod motor or other methods in the prior art.

[0062] Combination Figure 4 and Figure 5 As shown, in some embodiments, the flip cover 300 is tilted when opened, and tilts backward from the outside towards the smoke collection chamber 110 to guide the flue gas entering from the side smoke inlet 130 to flow to the rear side of the rear smoke collection chamber 110 and enter the volute 250 of the fan 200 through the rear air inlet 240. This arrangement helps to guide external gas backward when the flip cover 300 is opened, allowing the gas to move backward after entering the smoke collection chamber 110 and enter the volute 250 through the rear air inlet 240 of the fan 200, thereby carrying away heat from the motor 210 and cooling it. Specifically, the angle between the flip cover 300 and the vertical plane of the side smoke inlet 130 when open is less than 90°. In other words, when the left side wall of the outer casing 100 is provided with the side smoke inlet 130, the angle between the corresponding flip cover 300 and the left side wall of the outer casing 100 is less than 90°.

[0063] Specifically, the flip cover 300 comprises a cover body 330 and a rotating part 340 arranged on the cover body 330 and matched with the shell 100, and the axis of the rotating part 340 extends along the height direction of the shell 100; when the flip cover 300 is in the closed position, the rotating part 340 is located at the back side of the cover body 330, and the flip cover 300 is turned outward to open the side smoke inlet 130. The above arrangement can realize the rotating matching of the flip cover 300 and the shell 100, and has simple structure and is convenient for assembly. The height direction is the up-down direction.

[0064] Exemplarily, along the height direction of the shell 100, the cover body 330 is provided with a rotating shaft at each of the upper and lower ends to form the rotating part 340, and the shell 100 is provided with two open and opposite rotating grooves, and each rotating shaft is rotatably arranged in the corresponding rotating groove.

[0065] In combination Figure 6 As shown in the figure, in order to facilitate driving, in some embodiments, the range hood further comprises a driving member 500, a transmission member 530 and an output shaft 540, the driving member 500 is arranged in the shell 100, the transmission member 530 is movably arranged in the shell 100 along the thickness direction of the shell 100 and is in transmission connection with the output end of the driving member 500, the output shaft 540 connected with the flip cover 300 is movably constrained to the shell 100 along the length direction of the shell 100, each output shaft 540 has a matching part, the transmission member 530 is provided with a guide part, and the guide part is in sliding matching with the matching part. The above arrangement makes the output shaft 540 of the driving member 500 move along the thickness direction of the shell 100, and can drive the output shaft 540 to move along the length direction of the shell 100, so as to drive the flip cover 300 to rotate, effectively utilizes the space on the left and right sides of the fan 200 in the smoke collecting cavity 110, and reduces the space occupied by the smoke collecting cavity 110 in the length direction.

[0066] Specifically, the transmission member 530 is provided with a first sliding groove 531 extending outwardly and obliquely from back to front to form the guide part, one end of the output shaft 540 is provided with a sliding block 541 to form the matching part, the sliding block 541 is slidably arranged in the first sliding groove 531, and the transmission member 530 can drive the sliding block 541 to move to drive the flip cover 300 to move to the open position during the forward movement. Through the arrangement of the oblique first sliding groove 531 and the sliding block 541, the transmission direction can be changed, the structure is simple, the stability during use is strong, the assembly is convenient, the assembly efficiency is improved, and the internal space of the smoke collecting cavity 110 is reasonably utilized.

[0067] Further, the first sliding groove 531 is a T-shaped groove with an opening facing the output shaft 540, and the sliding block 541 is spherical. During the backward movement of the transmission member 530, the sliding block 541 is driven to move to drive the flip cover 300 to move to the closed position. The above arrangement realizes the bidirectional cooperation of the first sliding groove 531 and the sliding block 541, that is, when the transmission member 530 moves forward, the bottom wall of the first sliding groove 531 pushes the sliding block 541 away from one end of the flip cover 300, drives the sliding block 541 away from the smoke collecting cavity 110, and the flip cover 300 is opened. When the transmission member 530 moves backward, the side wall at the opening of the first sliding groove 531 pushes the sliding block 541 close to one end of the flip cover 300, drives the sliding block 541 close to the smoke collecting cavity 110, and the flip cover 300 is closed. The structure is simple, and the opening and closing actions of the flip cover 300 are completed with as few components as possible. The spherical sliding block 541 can adapt to the shape of the first sliding groove 531 and help to ensure smooth sliding. Specifically, the cross-sectional profile of the first sliding groove 531 is circular, the opening faces the corresponding flip cover 300, and the shape is adapted to the shape of the sliding block 541.

[0068] The range hood further comprises a sliding base 550, the sliding base 550 is arranged in the housing 100, the transmission member 530 is slidingly arranged in the sliding base 550, the sliding base 550 is provided with a sliding channel, the output shaft 540 comprises a sliding rod 542 and a hinged rod 543, the sliding rod 542 is slidingly arranged in the sliding channel, the sliding block 541 is arranged at one end of the sliding rod 542, one end of the hinged rod 543 is hinged to the other end of the sliding rod 542, and the other end of the hinged rod 543 is hinged to the flip cover 300. The above arrangement makes the sliding base 550 dual-purpose, saves the number of components, and improves the installation efficiency. The sliding base 550 is provided with a sliding rail 551, and the transmission member 530 is provided with a second sliding groove in sliding cooperation with the sliding rail 551.

[0069] The range hood further comprises a transfer member 560, the two flip covers 300 corresponding to the two side smoke inlets 130 are driven by the two transmission members 530, and the two transmission members 530 are connected by the transfer member 560 to move synchronously. In this embodiment, the driving member 500 can drive one of the transmission members 530 or drive the transfer member 560. The above arrangement enables the driving member 500 to be arranged in one, reduces the number of driving members 500, and saves costs.

[0070] In combination Figure 7As shown, in some embodiments, each side smoke inlet 130 corresponds to two flaps 300, the two flaps 300 corresponding to each side smoke inlet 130 are arranged in the thickness direction of the shell 100 and are matched with two output shafts 540, the transmission member 530 is provided with two guide portions arranged in the thickness direction of the shell 100. The above arrangement can guide the gas backward after the previous flap 300 is opened, which helps the gas flow to pass through the motor 210 to reduce the temperature of the motor 210. In other embodiments, each side smoke inlet 130 corresponds to three flaps 300, and the output shaft 540 and the first sliding groove 531 are each provided with three.

[0071] At least the previous flap 300 is arranged to have an included angle less than 90° between the opening surface and the corresponding side smoke inlet 130 when the flap is opened. In other words, the side smoke inlet 130 is arranged on the left side wall of the shell 100, and the corresponding flap 300 has an included angle less than 90° between the left side wall when the flap is opened.

[0072] In combination Figure 7 As shown, the transmission member 530 is provided with two first sliding grooves 531 extending outwardly and obliquely from back to front to form two guide portions, the starting positions of the two guide portions are different so that the previous flap 300 corresponding to at least two flaps 300 corresponding to the same side smoke inlet 130 is opened first, and the latter flap 300 is opened later. Specifically, the two first sliding grooves 531 on the transmission member 530 are arranged in the thickness direction of the shell 100, and the two flaps 300 are driven by the two output shafts 540, each first sliding groove 531 includes a first smooth portion 5311, an inclined portion 5312 and a second smooth portion 5313, wherein the first smooth portion 5311 and the second smooth portion 5313 extend in the thickness direction of the shell 100, when the slider 541 is located in the first smooth portion 5311 and the second smooth portion 5313, the flap 300 cannot be driven to turn even if the transmission member 530 moves; only when the slider 541 is located in the inclined portion 5312, the flap 300 can be driven to turn during the movement of the transmission member 530. Wherein, the length of the first smooth portion 5311 of the previous first sliding groove 531 is greater than the length of the first smooth portion 5311 of the latter first sliding groove 531; the length of the second smooth portion 5313 of the previous first sliding groove 531 is less than the length of the second smooth portion 5313 of the latter first sliding groove 531.

[0073] In other embodiments, the transmission member 530 is provided with two first sliding grooves 531 extending outwardly and obliquely from back to front to form two guide portions, the two first sliding grooves 531 are the same in shape so that the two flaps 300 are opened and closed synchronously.

[0074] In some embodiments, in order to reduce the pollution of oil to the motor 210, an oil screen is arranged at the rear side of the fan 200 to filter the oil fume. The mounting frame is connected with the shell 100, the fan 200 is fixed on the mounting frame, and the oil fume can enter the rear air inlet 240 through the gap between the mounting frames.

[0075] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A range hood, characterized in that, include: The outer casing (100) has a smoke collection chamber (110) and a front smoke inlet (120), a side smoke inlet (130) and a smoke outlet (140) communicating with the smoke collection chamber (110). The front smoke inlet (120) is located on the front side of the outer casing (100), and the two side smoke inlets (130) are respectively located on both sides of the length direction of the outer casing (100). A fan (200) is disposed in the smoke collection chamber (110) and located behind the front smoke inlet (120). Gas entering the volute (250) of the fan (200) from the front air inlet (230) or the rear air inlet (240) of the fan (200) flows to the smoke outlet (140) via the air outlet of the fan (200). The motor (210) of the fan (200) is at least partially located behind the impeller (220). At least two flip covers (300) are provided on the outer shell (100) and can move between an open position and a closed position to open or close the corresponding side smoke inlet (130). The two flip covers (300) can be opened simultaneously or individually. The front smoke inlet (120), the smoke collection chamber (110), the front air inlet (230) of the fan (200), the air outlet of the fan (200) and the smoke outlet (140) are connected in sequence. When the flip cover (300) is in the open position, the side smoke inlet (130), the smoke collection chamber (110), the rear air inlet (240), the air outlet and the smoke outlet (140) are connected in sequence along the gas flow direction.

2. The range hood according to claim 1, characterized in that, The flip cover (300) is rotatably disposed on the outer shell (100). The flip cover (300) includes a shielding body (310) and at least one hinge portion (320) disposed on the shielding body (310). The outer shell (100) has at least one hinge engagement portion, and each hinge portion (320) is correspondingly disposed in each hinge engagement portion.

3. The range hood according to claim 2, characterized in that, The hinge (320) is located at the top of the outer shell (100), the axis of the hinge (320) extends along the thickness direction of the outer shell (100), and the hinge (320) is located at the upper end of the shielding body (310). When the flip cover (300) is in the open position, it tilts downward in a direction away from the smoke collection chamber (110).

4. The range hood according to claim 2, characterized in that, The range hood also includes a drive unit (500), which includes a drive body (510) and a drive shaft (520). The drive shaft (520) is telescopically disposed on the drive body (510) along its own axis. The drive body (510) is disposed in the smoke collection chamber (110) and hinged to the outer shell (100). The flip cover (300) also includes a connecting rod (311) disposed on the shielding body (310). The outer shell (100) is provided with a clearance channel for the connecting rod (311) to pass through. One end of the drive shaft (520) away from the drive body (510) is hinged to the connecting rod (311) to drive the flip cover (300) to swing between the open position and the closed position.

5. The range hood according to claim 4, characterized in that, The range hood includes two drive units (500), each drive unit (500) is arranged in a one-to-one correspondence with one of the two flip covers (300), and each flip cover (300) is driven to operate independently; and / or, The drive unit (500) is located at the upper end of the smoke collection chamber (110) and above the side smoke inlet (130).

6. The range hood according to claim 1, characterized in that, When the flip cover (300) is opened, it is tilted and tilted backward from the outside towards the smoke collection chamber (110) to guide the smoke entering from the side smoke inlet (130) to flow to the rear side of the smoke collection chamber (110) so as to enter the volute (250) of the fan (200) from the rear air inlet (240).

7. The range hood according to claim 6, characterized in that, The flip cover (300) includes a cover body (330) and a rotating part (340) disposed on the cover body (330) and cooperating with the outer shell (100). The axis of the rotating part (340) extends along the height direction of the outer shell (100). When the flip cover (300) is in the closed position, the rotating part (340) is located on the rear side of the cover body (330), and the flip cover (300) rotates outward to open the side smoke inlet (130).

8. The range hood according to claim 6, characterized in that, The range hood also includes a drive component (500), a transmission component (530), and an output shaft (540). The drive component (500) is disposed on the housing (100). The transmission component (530) is movably disposed on the housing (100) along the thickness direction of the housing (100) and is connected to the output end of the drive component (500). The output shaft (540) connected to the flip cover (300) is movably constrained to the housing (100) along the length direction of the housing (100). Each output shaft (540) has a mating part. The transmission component (530) is provided with a guide part, and the guide part is slidably engaged with the mating part.

9. The range hood according to claim 8, characterized in that, The transmission component (530) is provided with a first groove (531) extending from back to front and outward to form a guide portion. One end of the output shaft (540) is provided with a slider (541) to form the mating portion. The slider (541) is slidably disposed in the first groove (531). When the transmission component (530) moves forward, it can drive the slider (541) to move so as to move the flip cover (300) to the open position.

10. The range hood according to claim 9, characterized in that, The first slide (531) is a T-shaped groove with its opening facing the output shaft (540). The slider (541) is spherical. The transmission member (530) can drive the slider (541) to move during the backward movement process so as to move the flip cover (300) to the closed position.

11. The range hood according to claim 9, characterized in that, The range hood includes a sliding base (550) disposed on the outer shell (100), a transmission component (530) slidably disposed on the sliding base (550), the sliding base (550) having a sliding channel, the output shaft (540) including a sliding rod (542) and a hinge rod (543), the sliding rod (542) being slidably disposed in the sliding channel, a slider (541) disposed at one end of the sliding rod (542), one end of the hinge rod (543) being hinged to the other end of the sliding rod (542), and the other end of the hinge rod (543) being hinged to the flip cover (300).

12. The range hood according to claim 8, characterized in that, The range hood also includes a transfer component (560) and two transmission components (530) corresponding one-to-one with the two flip covers (300). The two flip covers (300) corresponding to the two side smoke inlets (130) are driven by the two transmission components (530), and the two transmission components (530) are connected to each other through the transfer component (560) to move synchronously.

13. The range hood according to claim 8, characterized in that, Each of the side smoke inlets (130) corresponds to at least two of the flip covers (300). The at least two flip covers (300) corresponding to each of the side smoke inlets (130) are arranged at intervals along the thickness direction of the outer shell (100) and are correspondingly engaged with the two output shafts (540). The transmission member (530) is provided with two guide portions arranged at intervals along the thickness direction of the outer shell (100).

14. The range hood according to any one of claims 1-13, characterized in that, The range hood further includes a first filter (610), which is disposed at the front smoke inlet (120); and / or, The range hood also includes a second filter (620), which is located at the side smoke inlet (130).

Images