Range hood and control method thereof

Abstract

The present invention discloses a range hood and a control method thereof, which are used to solve the problem that the existing range hoods have a single function and are inconvenient to use. The range hood comprises: a smoke collecting hood having a smoke inlet; a water storage box having a first air inlet, a first air outlet and a first water outlet; a volute assembly, comprising a volute and an impeller arranged in the volute, and the volute is connected to the smoke collecting hood; a cleaning device, one end of which is connected to the first water outlet and the other end is connected to the volute; the cleaning device is used to pour the liquid in the water storage box into the inside of the volute; and an air curtain device, one end of which is connected to the first air outlet of the water storage box and the other end has a first air outlet, and the first air outlet is arranged at the edge of the smoke collecting hood. The range hood provided by the present invention can generate a low-temperature and humid air curtain by connecting the cleaning device and the air curtain device to the water storage box at the same time, and the cleaning device can clean the volute and the impeller, thereby saving installation space and reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen equipment, and in particular to a range hood and a control method thereof. Background Art

[0002] The range hood is a commonly used kitchen appliance, usually installed above the stove. It can promptly extract the waste generated by stove combustion and the fumes generated by cooking and discharge them outdoors, thereby ensuring the cleanliness of the air in the kitchen and thus ensuring the health of the user.

[0003] In the prior art, some range hoods are equipped with an air curtain device, which generates an air curtain through the air supplied by the fan to prevent the fumes from escaping. Some range hoods are equipped with a cleaning system to clean the impeller and other parts. When the range hood needs to be cleaned, an external water box is usually required. Therefore, the range hood has a single function and is inconvenient to use. Summary of the invention

[0004] The object of the present invention is to provide a range hood and a control method thereof, so as to solve the problem that the existing range hoods have single functions and are inconvenient to use.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] On the one hand, some embodiments of the present invention provide a range hood, including a smoke hood, a water storage box, a volute assembly, a cleaning device, and an air curtain device. The smoke hood has a smoke inlet. The water storage box has a first air inlet, a first air outlet, and a first water outlet. The volute assembly includes a volute and an impeller disposed in the volute, and the volute is connected to the smoke hood. One end of the cleaning device is connected to the first water outlet, and the other end is connected to the volute; the cleaning device is used to pour the liquid in the water storage box into the interior of the volute. One end of the air curtain device is connected to the first air outlet of the water storage box, and the other end has a first air outlet, and the first air outlet is disposed at the edge of the smoke hood.

[0007] In some embodiments, the range hood further includes: an ultrasonic atomization device, disposed in the water storage box, for atomizing the liquid in the water storage box into droplets.

[0008] In some embodiments, the ultrasonic atomization device includes a bracket and at least one ultrasonic atomization structure. The bracket is connected to the inner wall of the water storage box. The ultrasonic atomization structure includes a conduit, siphon cotton and an atomization sheet. The conduit is connected to the bracket and communicates with the inner cavity of the water storage box; the conduit has a first end and a second end opposite to each other. The siphon cotton is filled in the conduit, and the end of the siphon cotton close to the first end contacts the bottom wall of the water storage box. The atomization sheet is arranged at the second end of the conduit and contacts the siphon cotton.

[0009] In some embodiments, there are two ultrasonic atomization structures, and the bottom wall of the water storage box is inclined along the connecting direction of the first ends of the two conduits.

[0010] In some embodiments, the water storage box includes a first box body, a first cover body and a carrier plate. The first box body has a first opening. The first cover body is covered on the first opening. The carrier plate is arranged in the first box body and located at the first opening, and the carrier plate is provided with a plurality of leakage holes.

[0011] In some embodiments, the air curtain device includes an air outlet pipe and a first driving pump. The air outlet pipe is arranged at the edge of the smoke collecting hood; a plurality of first air outlet holes are opened on the side wall of the air outlet pipe, and the plurality of first air outlet holes are sequentially arranged at intervals along the length direction of the air outlet pipe. The first driving pump is connected between the first air outlet and the air outlet pipe, and is used to drive the air flow from the water storage box to the air outlet pipe.

[0012] In some embodiments, the smoke hood includes a hood body, a surrounding plate, a connecting frame and a top plate. The hood body has a smoke inlet. The surrounding plate is arranged around the hood body. The connecting frame is arranged around the hood body and connected between the edge of the hood body and the surrounding plate. The top plate is located on the smoke outlet side of the hood body; the top plate cover is arranged at the opening of the surrounding plate away from the connecting frame. The hood body, the surrounding plate and the top plate enclose a receiving cavity, and the water storage box, the air outlet pipe, the first driving pump and part of the cleaning device are located in the receiving cavity.

[0013] In some embodiments, the connection frame includes a first connection frame located at the air inlet side of the volute assembly; the first connection frame is provided with a plurality of second air outlet holes; the air outlet pipe is connected to the first connection frame, and the first air outlet holes correspond to the second air outlet holes one by one.

[0014] In some embodiments, the air curtain device further includes a driving member, a connecting rod, and a plurality of locking members. The driving member is connected to the smoke hood. The connecting rod is connected to the driving end of the driving member. One end of the locking member passes through the air outlet pipe and is connected to the connecting rod, and the other end is located in the air outlet pipe; a locking member is used to close or open a first air outlet under the action of the driving member.

[0015] In some embodiments, the range hood further comprises an air inlet box. The air inlet box comprises a second box body, a second cover body and filter cotton. The second box body has a second opening, and a second air outlet is also provided on the second box body, and the second air outlet is connected to the first air inlet. The second cover body is provided at the second opening, and a plurality of second air inlets are provided around the second cover body. The filter cotton is provided at the second opening.

[0016] In some embodiments, the volute includes a volute enclosure, a volute top plate, and a volute bottom plate, and the volute enclosure is connected between the volute top plate and the volute bottom plate; the volute enclosure is provided with a plurality of water inlets. The cleaning device includes a water pipe and a second drive pump. One end of the water pipe is connected to the first water outlet of the water storage box, and the other end is connected to the volute enclosure; a plurality of second water outlets are provided on the water pipe, and one second water outlet is provided corresponding to one water inlet. The second drive pump is connected to the water pipe.

[0017] On the other hand, some embodiments of the present invention also provide a range hood control method for controlling the range hood described in any of the above embodiments, the range hood also including a controller, the controller being electrically connected to the air curtain device and the cleaning device, the control method including: receiving an operation instruction from a user, the operation instruction being used to determine the operating mode of the range hood; according to the operating mode, issuing a prompt message to add a working medium into the water storage box; and if the operation instruction determines that the operating mode of the range hood is a cleaning mode, sending a first start instruction to the cleaning device; if the operation instruction determines that the operating mode of the range hood is an air curtain mode, sending a second start instruction to the air curtain device; if the operation instruction determines that the operating mode of the range hood is an air curtain cleaning combination mode, sending a third start instruction to the cleaning device and the air curtain device.

[0018] The range hood and control method thereof provided by the present invention have the following beneficial effects:

[0019] In summary, the range hood provided by the present invention has a smoke inlet on the smoke collecting hood, a volute connected to the smoke collecting hood, and an impeller arranged inside the volute, so that when the impeller rotates, waste generated by stove combustion and oil smoke generated by cooking can enter the volute from the smoke inlet on the smoke collecting hood, and be discharged from the smoke outlet of the volute under the action of the impeller, thereby ensuring the cleanliness of the air in the kitchen; a first air inlet and a first air outlet are arranged through a water storage box, one end of the air curtain device is connected to the first air outlet, and the other end has a first air outlet arranged at the edge of the smoke collecting hood, so that the water storage box When cold water or ice water is contained in the air curtain device, the air curtain device can generate a low-temperature air curtain with water vapor at the edge of the smoke hood, which can not only collect the oil smoke to isolate the oil smoke from the user, but also reduce the temperature to improve the user's comfort; the water storage box is provided with a first water outlet, one end of the cleaning device is connected to the first water outlet, and the other end is connected to the volute, which is used to pour the liquid (such as hot water) in the water storage box into the volute, so that the cleaning device can use the liquid (such as hot water) in the water storage box to clean the volute and the impeller, ensuring the cleanliness of the range hood. In this way, the range hood has the function of generating a cooling air curtain and also has the function of cleaning the volute and the impeller.

[0020] In addition, by connecting the cleaning device and the air curtain device to the water storage box at the same time, the water storage box can contain cold water or ice water, so that the air curtain device produces a low-temperature and humid air curtain, and can also contain cleaning liquid (such as hot water) so that the cleaning device can clean the volute and impeller. Therefore, there is no need to separately configure water storage boxes for the air curtain device and the cleaning device, thereby saving the installation space of the cleaning device and the air curtain device, simplifying the structure of the range hood, reducing costs, and making it easier for users to use.

[0021] The beneficial technical effects of the range hood control method provided by the present invention are the same as the beneficial technical effects of the range hood provided by the embodiment of the present invention, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of the appearance of a range hood according to some embodiments of the present invention;

[0024] Figure 2 is a partial structural schematic diagram of a range hood according to some embodiments of the present invention;

[0025] Figure 3 A bottom view of a fume hood according to some embodiments of the present invention;

[0026] Figure 4 A partial structural schematic diagram of a water storage box according to some embodiments of the present invention;

[0027] Figure 5 is a partial structural schematic diagram of a range hood according to some other embodiments of the present invention;

[0028] Figure 6 is a front view of a partial structure of a range hood according to some other embodiments of the present invention;

[0029] Figure 7 A partial structural appearance schematic diagram of a range hood according to some embodiments of the present invention;

[0030] Figure 8 for Figure 7 Sectional view at AA;

[0031] Fig. 9 for Figure 8 Enlarged view of point B in the middle;

[0032] Fig.10 for Figure 7 Sectional view at CC;

[0033] Fig.11 A partial structural cross-sectional view of a range hood according to some embodiments of the present invention;

[0034] Fig.12 for Fig.11 Enlarged view of point D in the middle;

[0035] Fig.13 is a partial structural schematic diagram of a range hood according to some embodiments of the present invention;

[0036] Fig.14 The figure is a flow chart of a range hood control method according to some embodiments of the present invention.

[0037] Reference numerals: 100-range hood; 1-smoke hood; 101-smoke inlet; 102-hood body; 1021-smoke collecting plate; 1022-side wall; 103-enclosing plate; 1031-front panel, 1032-back panel; 1033-right side panel; 104-connecting frame; 1041-first connecting frame; 1042-second air outlet; 1043-guiding hole; 105-top plate; 106-accommodating cavity; 2-water storage box; 201-first air inlet; 202-first air outlet; 203-first water outlet; 204-first box body; 2041-first opening; 205-first cover body; 206-carrying plate; 3-volute assembly; 301-volute; 3011-volute enclosure; 30111-water inlet; 30112-oil outlet; 3012-volute top plate; 3013-volute bottom plate ;302-impeller;303-fan;304-smoke outlet;4-cleaning device;401-water pipe;402-second drive pump;5-wind curtain device;501-first air outlet;502-air outlet pipe;503-first drive pump;504-driving member;505-connecting rod;506-locking member;507-bracket;6-frame;7-operating panel;8-ultrasonic atomization device;801- Bracket; 802-ultrasonic atomization structure; 8021-catheter; 80211-first end; 80212-second end; 8022-siphon cotton; 8023-atomization sheet; 9-air inlet box; 901-second box body; 9011-second opening; 9012-second air outlet; 902-second cover body; 9021-second air inlet; 903-filter cotton; 10-oil guide groove; 11-oil cup. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0043] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0044] A range hood is a commonly used kitchen appliance used to ensure clean kitchen air during cooking. In the prior art, some range hoods are equipped with an air curtain device, which generates a room-temperature dry air curtain through the air supplied by the fan to prevent the escape of oil smoke. Some range hoods are equipped with a cleaning system to clean components such as the impeller. When the range hood needs to be cleaned, an external water box is usually required. Therefore, the range hood has a complex structure, high cost, and is inconvenient to use.

[0045] Based on this, see Figure 1 Some embodiments of the present application provide a range hood 100, including a smoke collecting hood 1, a water storage box 2, a volute assembly 3, a cleaning device 4 and an air curtain device 5.

[0046] The smoke collecting hood 1 has a smoke inlet 101, and the smoke collecting hood 1 is arranged above the stove. Figure 3 As shown, the smoke collecting hood 1 may include a hood body 102, and the hood body 102 may include a smoke collecting plate 1021 and a side wall 1022 arranged around the smoke collecting plate 1021 and connected to the edge of the smoke collecting plate 1021, and the smoke inlet 101 may be opened on the smoke collecting plate 1021. In this way, the smoke collecting plate 1021 and the side wall 1022 may enclose a cavity with an opening facing the stove, so as to collect waste burned by the stove and oil smoke generated by cooking.

[0047] In order to discharge the waste generated by the burning stove and the fumes generated by cooking to the outside, Figure 2 As shown, the volute assembly 3 includes a volute 301 and an impeller 302 disposed in the volute 301, and the volute 301 is connected to the smoke collecting hood 1. Based on this, in order to enable the volute assembly 3 to absorb oil smoke, the volute assembly 3 may also include a fan 303, the fan 303 may be connected to the volute 301 through a threaded connector, and the impeller 302 may be connected to the output shaft of the fan 303. The impeller 302 rotates under the driving action of the fan 303, sucking the oil smoke into the volute 301, and discharging it from the volute 301 through the smoke outlet 304 connected to the volute 301, and then discharged to the outside through the smoke exhaust pipe connected to the smoke outlet 304.

[0048] On this basis, in order to support and fix the volute assembly 3 and the smoke hood 1, as shown in FIG. Figure 1 As shown, the range hood 100 may further include a frame 6, which is arranged outside the volute assembly 3 and located at the smoke outlet side of the hood body 102 of the smoke hood 1. The lower end of the frame 6 is connected to the edge of the smoke inlet 101 of the smoke hood 1, and the volute 301 in the volute assembly 3 can be connected to the frame 6 through a threaded connector, that is, the volute 301 is indirectly connected to the smoke hood 1 through the frame 6. An air duct is formed in the frame 6, so that the oil smoke can enter the air duct surrounded by the frame 6 from the smoke inlet 101, and then be sucked into the volute 301 and discharged from the smoke outlet 304.

[0049] After the range hood 100 is used for a long time, oil will accumulate on the volute 301 and the impeller 302. In order to clean the volute 301 and the impeller 302, Figure 4 As shown, the water storage box 2 has a first air inlet 201, a first air outlet 202 and a first water outlet 203. For example, the water storage box 2 can be connected to the smoke hood 1; or, the water storage box 2 can also be connected to the frame 6, both of which can be applied. Figure 5 As shown, one end of the cleaning device 4 is connected to the first water outlet 203, and the other end is connected to the volute 301 (as shown in FIG. Figure 2 As shown). The cleaning device 4 is used to pour the liquid in the water storage box 2 into the interior of the volute 301. In this way, when the water storage box 2 contains cleaning liquid (such as hot water), the cleaning device 4 can pour the cleaning liquid into the interior of the volute 301 to clean the volute 301 and the impeller 302, without the user having to manually clean the range hood 100, thereby improving the user's convenience.

[0050] In order to prevent the escape of oil smoke and improve the comfort of users, such as Figure 5 As shown, one end of the air curtain device 5 is connected to the first air outlet 202 (as shown in FIG. Figure 4 ) is connected, and the other end has a first air outlet 501 (as shown Figure 6 As shown in FIG. 1 , the first air outlet 501 is disposed at the edge of the smoke hood 1. For example, the first air outlet 501 may be located inside the smoke hood 1; or, the first air outlet 501 may be located outside the smoke hood 1, both of which are applicable. For example, Figure 2 As shown, the first air outlet 501 can be arranged at the front edge of the smoke hood 1 and arranged in a straight line along the left and right directions of the range hood 100; or, the first air outlet 501 can also be arranged at the front edge, left edge and right edge of the smoke hood 1, both of which can be applied.

[0051] In order to control the range hood 100, Figure 1 As shown, the range hood 100 further includes a controller (not shown) and an operation panel 7 , and the controller and the operation panel 7 are arranged on the fume hood 1 , so as to facilitate the user to operate and control the range hood 100 .

[0052] In summary, the range hood 100 provided by the present invention has a smoke inlet 101 on the smoke hood 1, a volute 301 connected to the smoke hood 1, and an impeller 302 arranged inside the volute 301, so that when the impeller 302 rotates, waste generated by stove combustion and oil smoke generated by cooking can enter the volute 301 from the smoke inlet 101 on the smoke hood 1, and be discharged from the smoke outlet of the volute 301 under the action of the impeller 302, thereby ensuring the cleanliness of the air in the kitchen; a first air inlet 201 and a first air outlet 202 are provided through the water storage box 2, one end of the air curtain device 5 is connected to the first air outlet 202, and the other end has a first air outlet arranged at the edge of the smoke hood 1 The hole 501 enables the air curtain device 5 to generate a low-temperature air curtain with water vapor at the edge of the smoke collecting hood 1 when the water storage box 2 contains cold water or ice water, which can not only collect the oil smoke to isolate the oil smoke from the user, but also reduce the temperature, thereby improving the user's comfort; the water storage box 2 is provided with a first water outlet 203, one end of the cleaning device 4 is connected to the first water outlet 203, and the other end is connected to the volute 301, which is used to pour the liquid (such as hot water) in the water storage box 2 into the volute 301, so that the cleaning device 4 can use the liquid (such as hot water) in the water storage box 2 to clean the volute 301 and the impeller 302, thereby ensuring the cleanliness of the range hood 100. In this way, the range hood 100 has the function of generating a cooling air curtain and also has the function of cleaning the volute 301 and the impeller 302.

[0053] In addition, by connecting the cleaning device 4 and the air curtain device 5 to the water storage box 2 at the same time, the water storage box 2 can contain cold water or ice water, so that the air curtain device 5 produces a low-temperature and humid air curtain, and can also contain cleaning liquid (such as hot water) so that the cleaning device 4 cleans the volute 301 and the impeller 302. Therefore, there is no need to separately configure water storage boxes for the air curtain device 5 and the cleaning device 4, thereby saving the installation space of the cleaning device 4 and the air curtain device 5, simplifying the structure of the range hood 100, reducing the cost, and facilitating user use.

[0054] In order to enhance the air curtain's isolation effect on oil smoke and enhance user comfort, see Figure 8 ( Figure 8 for Figure 7(sectional view at AA in the middle), in some embodiments, the range hood 100 also includes an ultrasonic atomization device 8. The ultrasonic atomization device 8 is arranged in the water storage box 2, and is used to atomize the liquid in the water storage box 2 into droplets. With such a design, when the air curtain device 5 of the range hood 100 is turned on, the ultrasonic atomization device 8 can be turned on at the same time, and the ultrasonic atomization device 8 atomizes the water in the water storage box 2 into droplets, and then sprays out after the air flow flows from the first air outlet 202 of the water storage box 2 to the first air outlet 501, so that the air curtain generated by the air curtain device 5 contains water mist, which can enhance the effect of isolating oil smoke. In addition, when ice water is contained in the water storage box 2, the water mist in the air curtain can also cool the air near the stove and enhance the comfort of the user. On this basis, the ultrasonic atomization device 8 is arranged in the water storage box 2, which can also save the installation space of the ultrasonic atomization device 8, making the structure of the range hood 100 more compact.

[0055] As a possible implementation, see Fig. 9 In some embodiments, the ultrasonic atomization device 8 includes a bracket 801 and at least one ultrasonic atomization structure 802. The bracket 801 is connected to the inner wall of the water storage box 2. The ultrasonic atomization structure 802 includes a conduit 8021, a siphon cotton 8022, and an atomization sheet 8023. The conduit 8021 is connected to the bracket 801 and is in communication with the inner cavity of the water storage box 2; the conduit 8021 has a first end 80211 and a second end 80212 opposite to each other. The siphon cotton 8022 is filled in the conduit 8021, and the end of the siphon cotton 8022 close to the first end 80211 contacts the bottom wall of the water storage box 2. The atomization sheet 8023 is disposed at the second end 80212 of the conduit 8021 and contacts the siphon cotton 8022. In this way, the bracket 801 supports the conduit 8021 in the water storage box 2, and the siphon cotton 8022 filled in the conduit 8021 siphons the moisture in the water storage box 2 to keep it moist. The atomizing sheet 8023 in contact with the siphon cotton 8022 will atomize the liquid (such as water) in contact with it into droplets after being energized, so that the wind curtain generated by the wind curtain device 5 contains water mist, which can enhance the effect of isolating oil smoke. In addition, when the water storage box 2 is filled with ice water, the water mist in the wind curtain can also cool the air near the stove, thereby enhancing the user's comfort.

[0056] Exemplarily, the bracket 801 may be connected to the bottom wall of the water storage box 2; or, the bracket 801 may be connected to the side wall of the water storage box 2, both of which may be applicable.

[0057] Exemplarily, the catheter 8021 may be connected to the bracket 801 via a threaded connector; alternatively, the catheter 8021 may be integrally formed with the bracket 801, and both are applicable.

[0058] Exemplarily, the conduit 8021 may extend along the height direction of the water storage box 2; or, the conduit 8021 may extend along other directions, both of which are applicable.

[0059] Exemplarily, the atomizing sheet 8023 may be snap-connected to the second end 80212 of the conduit 8021 ; or, the atomizing sheet 8023 may be disposed at the second end 80212 of the conduit 8021 in other ways, both of which are applicable.

[0060] Exemplarily, there is a filter between the siphon cotton 8022 and the atomizing sheet 8023 , so that the liquid (such as water) in contact with the atomizing sheet 8023 can be filtered to protect the atomizing sheet 8023 .

[0061] Exemplarily, the first air outlet 202 may be disposed above the ultrasonic atomization structure 802 , so that the water mist generated by the ultrasonic atomization structure 802 can be discharged from the water storage box 2 in a timely manner.

[0062] Specifically, see Fig. 9 In some embodiments, the number of ultrasonic atomization structures 802 is two, and the bottom wall of the water storage box 2 is tilted along the line connecting the first ends 80211 of the two conduits 8021. It should be noted that the tilted setting here refers to the tilted setting relative to the horizontal plane. With such a design, when there is less liquid in the water storage box 2, the lower part of the bottom wall of the water storage box 2 can converge the liquid, so that the ultrasonic atomization structure 802 located at the lower position of the bottom wall of the water storage box 2 can still generate water mist, thereby ensuring the performance of the air curtain device 5, and further ensuring the performance of the range hood 100.

[0063] Exemplarily, the inclination angle α of the bottom wall of the water storage box 2 may be 0.5°.

[0064] Exemplarily, the two conduits 8021 may be arranged parallel to each other, so that it is convenient to design and process the bracket 801 , and to install the ultrasonic atomization structure 802 and the bracket 801 .

[0065] For increased user comfort, see Figure 5 In some embodiments, the water storage box 2 includes a first box body 204, a first cover body 205 and a carrier plate 206 (such as Fig.10). The first box body 204 has a first opening 2041. The first cover body 205 is covered on the first opening 2041. The carrier plate 206 is arranged in the first box body 204 and located at the first opening 2041. The carrier plate 206 is provided with a plurality of leak holes. With such a design, ice cubes can be placed on the carrier plate 206. The ice cubes melt under the action of the airflow to form ice water, which falls from the leak holes on the carrier plate 206 to the bottom of the first box body 204. The ice water can be atomized into mist droplets by the ultrasonic atomization device 8, so that the air curtain generated by the air curtain device 5 contains cool water mist, which increases the comfort of the user.

[0066] For example, Figure 4 As shown, the first air inlet 201, the first air outlet 202 and the first water outlet 203 can be opened on the side wall of the first box body 204, wherein the first air inlet 201 and the first air outlet 202 can be as far away as possible to prevent the water mist generated by the ultrasonic atomization device 8 from escaping from the water storage box 2 from the first air inlet 201.

[0067] Exemplarily, the edge of the supporting plate 206 can correspond to the center point of the first air inlet 201, so that part of the air flow entering the water storage box 2 from the first air inlet 201 will pass through the supporting plate 206. When ice cubes are placed on the supporting plate 206, the melting speed of the ice cubes can be accelerated to ensure the cooling effect of the air curtain.

[0068] Exemplarily, a sealing strip is provided on the peripheral sides of the first cover body 205 and the first box body 204 , and is located between the first cover body 205 and the first box body 204 to ensure the sealing of the water storage box 2 .

[0069] As a possible implementation, see Figure 5 In some embodiments, the air curtain device 5 includes an air outlet pipe 502 and a first driving pump 503. The air outlet pipe 502 is disposed at the edge of the smoke hood 1 and extends along the edge of the smoke hood 1; a plurality of first air outlet holes 501 (such as Figure 6 As shown in the figure, a plurality of first air outlet holes 501 are sequentially arranged at intervals along the length direction of the air outlet pipe 502. A first driving pump 503 is connected between the first air outlet 202 and the air outlet pipe 502, and is used to drive the air flow from the water storage box 2 to the air outlet pipe 502. With such a design, the first driving pump 503 can drive the air flow from the water storage box 2 to the air outlet pipe 502, and the air is sprayed from the plurality of first air outlet holes 501 to form a uniform air curtain, which is simple to operate and easy to implement.

[0070] Exemplarily, the first driving pump 503 may be an electromagnetic air pump.

[0071] Exemplarily, the diameter of the first air outlet hole 501 is not less than 2 mm (for example, the diameter of the first air outlet hole 501 may be 2 mm, 3 mm, or 4 mm).

[0072] It should be noted that, in other embodiments, the air flow may be driven to flow from the water storage box 2 to the air outlet pipe 502 by a fan connected between the first air outlet 202 and the air outlet pipe 502 .

[0073] In order to make the structure of the range hood 100 more compact, see Figure 1 In some embodiments, the smoke hood 1 includes the aforementioned hood body 102, the enclosure 103, the connection frame 104 and the top plate 105 (such as Figure 2 As shown). The housing 102 has a smoke inlet 101. The enclosure 103 is arranged around the housing 102. The connection frame 104 is arranged around the housing 102 and connected between the edge of the housing 102 and the enclosure 103. The top plate 105 is located on the smoke outlet side of the housing 102; the top plate 105 covers the opening of the enclosure away from the connection frame 104. The housing 102, the enclosure 103 and the top plate 105 enclose a receiving cavity 106 (as shown). Fig.11 As shown in FIG. 1 , the water storage box 2, the air outlet pipe 502, the first driving pump 503 and part of the cleaning device 4 are located in the accommodating chamber 106. With such a design, the water storage box 2 and the air curtain device 5 can be completely located in the accommodating chamber 106. In addition, part of the cleaning device 4 can be located in the accommodating chamber 106, and the other part of the cleaning device 4 can be located in the frame 6. In this way, the structure of the range hood 100 can be made more compact and the appearance of the range hood 100 can be good.

[0074] Exemplarily, the enclosure 103 may include a front panel 1031 , a back panel 1032 , a left side panel (not shown in the figure) and a right side panel 1033 , wherein the controller and the operation panel 7 may be disposed on the front panel 1031 .

[0075] Exemplarily, the connection frame 104 may be an annular plate, the inner peripheral edge of the connection frame 104 is connected to the edge of the cover body 102 , and the outer peripheral edge of the connection frame 104 is connected to the edge of the enclosure 103 .

[0076] Exemplarily, when the water storage box 2 includes a first box body 204, a first cover body 205 and a supporting plate 206, the first box body 204 can be snapped into the top plate 105, and an escape opening for the water storage box 2 can be opened on the top plate 105. The first cover body 205 is located on a side of the top plate 105 away from the cover body 102. In this way, it is convenient to open the first cover body 205 to add water or ice cubes into the water storage box 2.

[0077] Specifically, see Figure 1In some embodiments, the connection frame 104 includes a first connection frame 1041, which is located at the air inlet side of the volute assembly 3, that is, the first connection frame 1041 is connected between the front panel 1031 and the cover body 102, and the first connection frame 1041 can be perpendicular to the axis of the impeller 302. The first connection frame 1041 is provided with a plurality of second air outlet holes 1042 (such as Figure 3 As shown). The air outlet pipe 502 is connected to the first connection frame 1041, and the first air outlet hole 501 and the second air outlet hole 1042 correspond to each other. With such a design, the air outlet pipe 502 can be located in the accommodating cavity 106, and the first connection frame 1041 does not need to be provided with an avoidance groove connected to the air outlet pipe 502, so that the airflow in the air outlet pipe 502 can pass through the first connection frame 1041 from the second air outlet hole 1042 to form an air curtain under the smoke hood 1. This structural connection is reliable, ensuring the strength of the connection frame 104, and further ensuring the overall strength of the smoke hood 1.

[0078] In order to prevent oil smoke from entering the air curtain device 5, see Figure 5 In some embodiments, the air curtain device 5 further includes a driving member 504, a connecting rod 505 and a plurality of locking members 506. The driving member 504 is connected to the smoke hood 1. The connecting rod 505 is connected to the driving end of the driving member 504. One end of the locking member 506 passes through the air outlet pipe 502 and is connected to the connecting rod 505, and the other end is located in the air outlet pipe 502. A locking member 506 is used to close or open a first air outlet hole 501 under the action of the driving member 504. With such a design, when an air curtain is not needed, the locking member 506 can close the first air outlet hole 501 to prevent oil smoke from entering the air curtain device 5 from the first air outlet hole 501, or accumulating at the first air outlet hole 501 to form oil stains that drip onto the stove.

[0079] Exemplarily, the driving member 504 may be an electromagnetic lock, which is connected to the surface of the front panel 1031 facing the accommodating cavity 106 through a bracket 507 and a threaded connector.

[0080] Exemplarily, the connecting rod 505 may be plate-shaped and extend in parallel and in the same direction as the air outlet pipe 502 .

[0081] For example, Fig.12As shown, the locking member 506 is in the shape of a rod, and one end of the locking member 506 away from the connecting rod 505 has a positioning shoulder. When the locking member 506 closes the first air outlet 501, the end of the locking member 506 cooperates with the first air outlet 501, and the end surface of the positioning shoulder fits the inside of the air outlet pipe 502. For example, when the locking member 506 closes the first air outlet 501, the end surface of the locking member 506 away from the connecting rod 505 can be flush with the surface of the first connecting frame 1041 away from the accommodating cavity 106, so that the end surface of the locking member 506 and the surface of the first connecting frame 1041 can be prevented from forming a step surface, which easily causes oil to accumulate and drip onto the stove, and the range hood 100 has good flatness and aesthetics.

[0082] To make the air curtain airflow as clean as possible, see Figure 5 In some embodiments, the range hood 100 further includes an air inlet box 9. Figure 8 As shown, the air inlet box 9 includes a second box body 901, a second cover body 902 and a filter cotton 903. The second box body 901 has a second opening 9011, and a second air outlet 9012 is also opened on the second box body 901. The second air outlet 9012 is connected to the first air inlet 201. The second cover body 902 is covered at the second opening 9011, and a plurality of second air inlets 9021 (such as Figure 7 As shown). The filter cotton 903 is arranged at the second opening 9011. With such a design, when the air curtain device 5 is turned on to generate the air curtain, the airflow enters the air inlet box 9 from the second air inlet 9021 of the air inlet box 9, and then enters the water storage box 2 through the second air outlet 9012 and the first air inlet 201. In this process, the filter cotton 903 filters the airflow to prevent the air curtain of the range hood 100 from being mixed with fine dust and the like, which may harm the health of the user. In addition, the second air inlet 9021 is opened on the peripheral side of the second cover 902, which can prevent the dirt above the air inlet box 9 from falling directly from the second air inlet 9021 into the air inlet box 9. In addition, by connecting the air inlet box 9 at the first air inlet 201 of the water storage box 2, when the filter cotton 903 does not completely filter the fine dust in the airflow, the second box body 901 can play the role of storing fine dust. At the same time, the second box body 901 can also contain materials such as activated carbon to purify and deodorize the airflow.

[0083] For example, Figure 2 As shown, in the case where the smoke hood 1 includes a hood body 102, a surrounding plate 103, a connecting frame 104 and a top plate 105, the second box body 901 of the air inlet box 9 can be located in the accommodating cavity 106, and a avoidance opening of the air inlet box 9 is opened on the top plate 105. The second cover body 902 of the air inlet box 9 is located on the side of the top plate 105 away from the accommodating cavity 106, so that it is convenient to open the second cover body 902 to replace the filter cotton 903.

[0084] For example, Figure 2 As shown, when in use and installed, the air inlet box 9 is farther away from the front panel 1031 relative to the water storage box 2. In this way, the oil smoke emitted by the range hood 100 can be prevented as much as possible from entering the air inlet box 9 and causing the air flow of the air curtain to be not clean enough.

[0085] As a possible implementation, see Figure 2 In some embodiments, the volute 301 includes a volute enclosure 3011, a volute top plate 3012 and a volute bottom plate 3013, and the volute enclosure 3011 is connected between the volute top plate 3012 and the volute bottom plate 3013; the volute enclosure 3011 has a plurality of water inlets 30111 (such as Fig.13 As shown in Figure 5 As shown, the cleaning device 4 includes a water pipe 401 and a second driving pump 402. One end of the water pipe 401 is connected to the first water outlet 203 of the water storage box 2, and the other end is connected to the volute enclosure 3011 (as shown in FIG. Fig.13 The water pipe 401 is provided with a plurality of second water outlets (not shown in the figure), and one second water outlet is provided corresponding to one water inlet 30111. The second driving pump 402 is connected to the water pipe 401. With such a design, the second driving pump 402 can transport the liquid (such as hot water) in the water storage box 2 to the second water outlet, and pour it into the volute 301 through the water inlet 30111, so as to clean the volute 301 and the impeller 302.

[0086] For example, Figure 2 As shown, the water inlet 30111 can be set at the upper end of the volute enclosure 3011, that is, the water inlet 30111 can be set at the end of the volute enclosure 3011 away from the smoke hood 1, so that the liquid (such as hot water) from the water storage box 2 can flow through the impeller 302 twice from top to bottom, so as to facilitate more efficient cleaning of the impeller 302.

[0087] Exemplarily, the water pipe 401 may be fixed to the surface of the volute shroud 3011 on a side away from the impeller 302 via a support.

[0088] Exemplarily, the second driving pump 402 may be an electromagnetic pump.

[0089] For example, Figure 2 As shown, the lower end of the volute enclosure 3011 (i.e., the end close to the smoke hood 1) has an oil outlet 30112. On this basis, the range hood 100 also includes an oil guide groove 10, which is located below the oil outlet 30112 and connected to the volute enclosure 3011. The oil guide groove 10 is used to guide the waste oil from the volute 301 into the accommodating chamber 106 of the smoke hood 1, and the oil guide hole 1043 (as shown in FIG. 1 ) at the lower end of the connecting frame 104 is connected to the oil guide groove 10. Figure 3 As shown in FIG. 1 , the oil cup 11 flows into the oil cup 11 . The oil cup 11 can be connected to the connecting frame 104 by snapping.

[0090] See also Fig.14 Some embodiments of the present invention further provide a range hood control method for controlling the range hood 100 of any of the above embodiments, wherein the range hood 100 further includes the aforementioned controller, the controller is electrically connected to the air curtain device 5 and the cleaning device 4, and the control method includes S100 to S300.

[0091] S100: receiving an operation instruction from a user, where the operation instruction is used to determine an operation mode of the range hood 100 .

[0092] It should be noted that before performing step S100 , the power of the range hood 100 needs to be turned on first.

[0093] Exemplarily, the operation mode may be an air curtain mode, a cleaning mode, or an air curtain and cleaning combination mode.

[0094] Exemplarily, in the case where the range hood 100 further includes an operation panel 7 , receiving an operation instruction from a user may be receiving an operation instruction triggered by the user to issue the operation panel 7 .

[0095] S200: According to the operation mode, a prompt message is sent to the user to add working medium into the water storage box 2.

[0096] For example, if the operation mode is the air curtain mode, the controller sends a prompt message to the user to recommend adding ice cubes to the water storage box 2. If the operation mode is the cleaning mode, the controller sends a prompt message to the user to recommend adding hot water to the water storage box 2. If the operation mode is the air curtain cleaning combination mode, the controller sends a prompt message to the user to add cold water to the water storage box 2.

[0097] Exemplarily, the prompt information may be voice information; or, the prompt information may be subtitle information, both of which may be applicable.

[0098] S300: If the operation instruction determines that the operation mode of the range hood 100 is the cleaning mode, a first start instruction is sent to the cleaning device 4; if the operation instruction determines that the operation mode of the range hood 100 is the air curtain mode, a second start instruction is sent to the air curtain device 5; if the operation instruction determines that the operation mode of the range hood 100 is the air curtain and cleaning combination mode, a third start instruction is sent to the cleaning device 4 and the air curtain device 5. In this way, the air curtain device 5 can be started alone to generate a cooling air curtain; or the cleaning device 4 can be started alone to clean the volute 301 and the impeller 302; or the air curtain device 5 and the cleaning device 4 can be started at the same time to clean the volute 301 and the impeller 302 while generating the air curtain. The user can make a choice according to actual needs.

[0099] Exemplarily, before performing step S300, the controller may also determine whether the user has added working medium into the water storage box 2. For example, a travel switch may be provided at the first opening 2041 of the first box body 204 of the water storage box 2. If after step S200 and before step S300, the controller receives a signal that the first cover 205 is first opened and then closed, step S300 is performed to ensure that the water storage box 2 contains the corresponding working medium, thereby ensuring the performance of the range hood 100.

[0100] Exemplarily, if the operation mode of the range hood 100 is the wind curtain mode, when the range hood 100 includes two ultrasonic atomization structures 802 (the ultrasonic atomization structures 802 can be electrically connected to the controller), the first driving pump 503 can be started first to generate a wind curtain, and then one ultrasonic atomization structure 802 can be started two minutes later. Four minutes after starting the first driving pump 503, the other ultrasonic atomization structure 802 can be started. At this time, the concentration of water mist in the wind curtain is the largest and the cooling effect is the best.

[0101] For example, if the operation mode of the range hood 100 is the cleaning mode, the fan 303 and the second driving pump 402 can be turned on at the same time, and the fan 303 drives the impeller 302 to rotate, and the second driving pump 402 pours hot water from the water storage box 2 into the volute 301. The second driving pump 402 stops for one minute after running for two minutes to soften the oil stains. For example, in a cleaning cycle of the cleaning mode, the second driving pump 402 can be started four times, and the impeller 302 is always in a rotating state during this process to shake off the oil stains on the impeller 302; after the second driving pump 402 runs for the last time, the impeller 302 continues to rotate for three minutes to dry and prevent the impeller 302 from rusting.

[0102] Exemplarily, if the operation mode of the range hood 100 is the air curtain cleaning combination mode, the first drive pump 503 and the second drive pump 402 can be started at the same time, and the two ultrasonic atomization structures 802 can be started at the same time. The operation process of the impeller 302 and the second drive pump 402 in the cleaning cycle is as described above and will not be repeated here.

[0103] Exemplarily, after the cleaning mode or the air curtain cleaning combined mode is finished, the controller may also send a prompt message to the user to clean the oil cup 11 .

[0104] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A range hood, characterized in that: include: A smoke collecting hood having a smoke inlet; The water storage box has a first air inlet, a first air outlet and a first water outlet; A volute assembly, comprising a volute and an impeller disposed in the volute, wherein the volute is connected to the smoke collecting hood; A cleaning device, one end of which is connected to the first water outlet and the other end of which is connected to the volute; the cleaning device is used to pour the liquid in the water storage box into the interior of the volute; as well as An air curtain device, one end of which is connected to the first air outlet of the water storage box, and the other end of which has a first air outlet, wherein the first air outlet is arranged at the edge of the smoke collecting hood; The air curtain device comprises: An air outlet pipe is arranged at the edge of the smoke collecting hood; a plurality of the first air outlet holes are opened on the side wall of the air outlet pipe, and the plurality of the first air outlet holes are arranged in sequence and spaced apart along the length direction of the air outlet pipe; A driving member connected to the smoke collecting hood; a connecting rod connected to the driving end of the driving member; and A plurality of locking members, one end of each locking member passes through the air outlet pipe and is connected to the connecting rod, and the other end of each locking member is located in the air outlet pipe; one of the locking members is used to close or open one of the first air outlet holes under the action of the driving member; The locking member has a positioning shoulder at one end away from the connecting rod. When the locking member closes the first air outlet, the end of the locking member cooperates with the first air outlet, and the end surface of the positioning shoulder fits with the interior of the air outlet pipe. The locking member is rod-shaped. When the locking member closes the first air outlet, the end surface of the locking member away from the connecting rod is flush with the first air outlet.

2. The range hood according to claim 1, characterized in that: The range hood also includes: The ultrasonic atomization device is arranged in the water storage box and is used for atomizing the liquid in the water storage box into droplets.

3. The range hood according to claim 2, characterized in that: The ultrasonic atomization device comprises: A bracket connected to the inner wall of the water storage box; At least one ultrasonic atomization structure, the ultrasonic atomization structure comprising: A conduit connected to the bracket and communicated with the inner cavity of the water storage box; the conduit has a first end and a second end opposite to each other; Siphon cotton is filled in the conduit, and the end of the siphon cotton close to the first end is in contact with the bottom wall of the water storage box; An atomizing sheet is arranged at the second end of the conduit and is in contact with the siphon cotton.

4. The range hood according to claim 3, characterized in that: The number of the ultrasonic atomization structures is two, and the bottom wall of the water storage box is inclined along the direction of the line connecting the first ends of the two conduits.

5. The range hood according to claim 2, characterized in that: The water storage box comprises: A first box body having a first opening; A first cover body, covering the first opening; and The carrying plate is arranged in the first box body and located at the first opening. The carrying plate is provided with a plurality of leakage holes.

6. The range hood according to any one of claims 1 to 5, characterized in that: The air curtain device comprises: The first driving pump is connected between the first air outlet and the air outlet pipe, and is used for driving the air flow from the water storage box to the air outlet pipe.

7. The range hood according to claim 6, characterized in that: The smoke collecting hood comprises: A cover body having the smoke inlet; A surrounding plate is arranged around the cover body; A connecting frame is arranged around the cover body and connected between the edge of the cover body and the enclosure plate; and A top plate, located at the smoke outlet side of the cover body; the top plate cover is arranged at the opening of the enclosure away from the connection frame; The cover body, the enclosure plate and the top plate enclose a receiving cavity, and the water storage box, the air outlet pipe, the first driving pump and part of the cleaning device are located in the receiving cavity.

8. The range hood according to claim 7, characterized in that: The connecting frame comprises a first connecting frame, which is located at the air inlet side of the volute assembly; the first connecting frame is provided with a plurality of second air outlet holes; The air outlet pipe is connected to the first connecting frame, and the first air outlet holes correspond to the second air outlet holes one by one.

9. The range hood according to any one of claims 1 to 5, characterized in that: The range hood further comprises: an air inlet box, the air inlet box comprising: A second box body has a second opening, and a second air outlet is also formed on the second box body, and the second air outlet is connected to the first air inlet; A second cover body, covering the second opening, wherein a plurality of second air inlets are formed on a peripheral side of the second cover body; and The filter cotton is arranged at the second opening.

10. The range hood according to any one of claims 1 to 5, characterized in that: The volute comprises a volute enclosure, a volute top plate and a volute bottom plate, wherein the volute enclosure is connected between the volute top plate and the volute bottom plate; and a plurality of water inlets are provided on the volute enclosure; The cleaning device comprises: A water pipe, one end of which is connected to the first water outlet of the water storage box, and the other end of which is connected to the volute enclosure; a plurality of second water outlets are provided on the water pipe, and one of the second water outlets is provided corresponding to one of the water inlets; and The second driving pump is connected to the water pipe.

11. A method for controlling a range hood, characterized in that: Used to control the range hood according to any one of claims 1 to 10, the range hood further comprising a controller, the controller being electrically connected to the air curtain device and the cleaning device, the control method comprising: receiving an operation instruction from a user, wherein the operation instruction is used to determine an operation mode of the range hood; According to the operation mode, a prompt message is issued to add working medium into the water storage box; If the operating instruction determines that the operating mode of the range hood is the cleaning mode, a first start instruction is sent to the cleaning device; if the operating instruction determines that the operating mode of the range hood is the air curtain mode, a second start instruction is sent to the air curtain device; if the operating instruction determines that the operating mode of the range hood is the air curtain and cleaning combination mode, a third start instruction is sent to the cleaning device and the air curtain device.

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