CN217274381U - Fume exhaust fan - Google Patents

Abstract

The utility model discloses a range hood, including the air inlet subassembly, the air inlet subassembly is the cavity box structure and including the preceding lateral wall that is located the front side, the air intake has been seted up to the lower part of preceding lateral wall, range hood is still including the cigarette board that keeps off that can open and close the air intake, be provided with oil cup, its characterized in that under the air inlet subassembly: when the smoke baffle is in a state of closing the air inlet, the lower end of the smoke baffle exceeds the lower end of the air inlet assembly, so that the oil cup is hidden at the rear side of the smoke baffle. Compared with the prior art, the utility model has the advantages of: through set up hidden oil cup at the fender cigarette board rear side, can keep the outward appearance uniformity of range hood complete machine, can be convenient for again getting of oil cup and put, improve user experience.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

A conventional range hood, as disclosed in chinese patent application No. 202020725509.3, includes: the range hood comprises a range hood body, an oil cup arranged on the range hood body and a cleaning device used for inputting cleaning solution into the oil cup; the detector is used for detecting the oil collecting degree of the oil cup; and the controller is used for controlling the cleaning device to be started when the oil collection degree reaches a preset degree.

The oil cup is one of the important components of the range hood and has the function of collecting oil. Above-mentioned this kind of traditional smoke ventilator, the oil cup hangs in the organism below, for exposing the structure, has influenced the outward appearance uniformity. The design of some hidden oil cups is also available, the oil cup is arranged at the bottom of the inner side of the range hood main body, so that the oil cup cannot be contacted, oil dirt stored in the oil cup is released through an external container, some inconvenience in operation is brought, and the external container is easy to lose. Therefore, there is still room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the problem that above-mentioned prior art exists, a range hood is provided, can keep the outward appearance uniformity of range hood complete machine, can be convenient for again getting of oil cup get put, improve user experience.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the air inlet subassembly, the air inlet subassembly is cavity box structure and including the preceding lateral wall that is located the front side, the air intake has been seted up to the lower part of preceding lateral wall, range hood is still including the cigarette board that keeps off that can open and close the air intake, be provided with oil cup, its characterized in that under the air inlet subassembly: when the smoke baffle is in a state of closing the air inlet, the lower end of the smoke baffle exceeds the lower end of the air inlet assembly, so that the oil cup is hidden at the rear side of the smoke baffle.

Further, in order to conveniently guide the oil stain flowing down from the part, located above the air inlet, of the front side wall downwards into the oil cup, a first oil guide plate is formed at the bottom of the part, located above the air inlet, of the front side wall, a first oil guide groove with an open top is formed in the first oil guide plate, and tongues gradually inclining downwards from front to back are respectively arranged at the left end and the right end of the first oil guide plate.

Furthermore, in order to prevent oil stains flowing down from the tongue part from directly dripping and splashing at the air inlet, a guide plate is arranged in the air inlet assembly corresponding to the air inlet, the guide plate is in a state of gradually inclining backwards from bottom to top, the rear end part of the tongue part is positioned above the guide plate, and the lower end part of the guide plate corresponds to the upper part of the oil cup.

Further, in order to facilitate the oil stain flowing to the lower end part of the front side wall to be guided downwards into the oil cup, the lower end part of the front side wall is formed with an oblique angle part which is gradually inclined backwards from top to bottom, and the lower end of the oblique angle part corresponds to the upper part of the oil cup.

Furthermore, in order to guide the oil smoke entering from the air inlet to stably turn and flow upwards, a guide plate is arranged in the air inlet assembly and corresponds to the air inlet, and the guide plate is in a state of gradually inclining backwards from bottom to top.

Further, in order to facilitate the driving of the smoke baffle plate, the range hood further comprises a movement mechanism for driving the smoke baffle plate to act, the movement mechanism is arranged in the air inlet assembly and comprises a driving end and a driven end, and the output ends of the driving end and the driven end are respectively connected with the smoke baffle plate.

Further, in order to avoid the oil smoke from interfering the movement mechanism, the air inlet assembly further comprises a rear side wall arranged at the rear side of the front side wall at intervals, a left side wall arranged between the left end parts of the front side wall and the rear side wall, a right side wall arranged between the right end parts of the front side wall and the rear side wall, and a partition plate, wherein the partition plate extends between the front side wall and the rear side wall, and the partition plate is provided with two partition plates which are respectively close to the left side wall and the right side wall; the space between the left side wall and the corresponding partition plate is isolated from the air inlet, and the space between the right side wall and the corresponding partition plate is isolated from the air inlet; one of the driving end and the driven end is positioned in a space between the left side wall and the corresponding partition plate, and the other of the driving end and the driven end is positioned in a space between the right side wall and the corresponding partition plate.

Further, in order to facilitate the closing of the portion between the partition and the front end portion of the corresponding side wall, the front side wall includes baffles positioned on the left and right sides of the air inlet, one of the baffles is closed between the left side wall and the front end portion of the corresponding partition, the other baffle is closed between the right side wall and the front end portion of the corresponding partition, and the output ends of the driving end and the driven end pass through the baffles at the corresponding positions to be connected with the smoke baffle.

Further, in order to facilitate the oil stain flowing to the lower end part of the front side wall to be guided downwards into the oil cup, the lower end part of the baffle plate is provided with an oblique angle part which is gradually inclined backwards from top to bottom, and the lower end of the oblique angle part corresponds to the upper part of the oil cup.

Furthermore, in order to avoid the exposure of the baffle plates, the left end and the right end of the smoke baffle plate extend out of the corresponding edges of the air inlet, and the smoke baffle plate is shielded at the front side of each baffle plate in a state of closing the air inlet.

Further, in order to facilitate oil stains flowing to the lower end part of the front side wall to be guided downwards into the oil cup, a first oil guide plate is formed at the bottom of the part, located above the air inlet, of the front side wall, a first oil guide groove with an open top is formed in the first oil guide plate, tongue parts which are gradually inclined downwards from front to back are respectively arranged at the left end and the right end of the first oil guide plate, and the first oil guide plate is located between the two partition plates.

Furthermore, an air frame is arranged on the air inlet assembly, a fan system is arranged in the fan frame, the fan system is arranged in the front-back direction, a second oil guide plate is arranged below the fan system, the front end of the second oil guide plate is connected to the bottom of the front side of the fan system, the rear end of the second oil guide plate is connected to the rear side of the fan frame, a second oil guide groove with an open top is formed in the second oil guide plate, the bottom surface of the second oil guide groove gradually inclines downwards from front to back, and therefore oil dirt thrown under the centrifugal action of the fan system can be guided downwards into the oil cup.

Preferably, in order to facilitate the oil stain in the air inlet assembly to enter the oil cup, the air inlet assembly further comprises a bottom wall positioned at the bottom, the bottom wall is provided with an oil leakage hole, and the oil cup is arranged below the oil leakage hole.

Compared with the prior art, the utility model has the advantages of: the hidden oil cup is arranged on the rear side of the smoke baffle plate, so that the appearance consistency of the whole range hood can be kept, the oil cup can be conveniently taken and placed, and the user experience is improved; through setting up the oily structure of leading of different positions, can be convenient for guide and collect the greasy dirt that the inboard different positions of complete machine flowed down, avoid direct drippage downwards and follow the air intake spill.

Drawings

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

fig. 2 is a sectional view (left-right direction section) of the range hood according to the embodiment of the present invention;

fig. 3 is a sectional view (front-rear section) of the range hood according to the embodiment of the present invention in a closed state;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

fig. 5 is a cross-sectional view (a front-back cross-section, parallel to fig. 3) of the range hood according to the embodiment of the present invention in a closed state;

FIG. 6 is an enlarged view of portion II of FIG. 5;

fig. 7 is a schematic view of a panel bracket of a range hood according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion III of FIG. 7;

fig. 9 is a schematic view of an oil guide plate of the range hood according to the embodiment of the present invention;

fig. 10 is a schematic view of the hidden front side wall and the hidden partition plate of the air intake assembly of the range hood according to the embodiment of the present invention;

fig. 11 is a schematic view of an open state of the range hood according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1, 2, 5, 10 and 11, a range hood includes an air intake assembly 1 and a fan frame 2 disposed on the air intake assembly 1, the fan frame 2 is used for disposing a fan system 3 therein, and the fan system 3 can adopt a common centrifugal fan, and includes a volute 31 and an impeller 32 disposed in the volute 31. The air inlet component 1 is communicated with the fluid in the fan frame 2.

The thickness of the air inlet component 1 in the front-back direction is smaller than that of the fan frame 2, the front side is the side close to a user in a use state, and the back side is the side far away from the user in the use state. The air inlet component 1 comprises a front side wall 11 and a rear side wall 12 which are arranged at intervals in the front-rear direction, a left side wall 13 is connected between the left end portions of the front side wall 11 and the rear side wall 12, a right side wall 14 is connected between the right end portions of the front side wall 11 and the rear side wall 12, a top wall 15 is connected between the top ends of the front side wall 11, the rear side wall 12, the left side wall 13 and the right side wall 14, and a bottom wall 16 is connected between the bottom ends of the front side wall 11, the rear side wall 12, the left side wall 13 and the right side wall 14. Thus, the intake assembly 1 has a thin hollow box shape.

The lower part of the front side wall 11 is provided with an air inlet 17, the lower end of the air inlet 17 is the lower end of the front side wall 11, and therefore the air inlet 17 is close to a smoke source, and the oil smoke can be better locked before rising. The front side wall 11 is formed by combining a front panel 111 and a rear panel bracket 112, the front panel 111 is made of glass, and the front panel 111 and the rear panel bracket 112 can be fixed by gluing. The front wall 11 is formed with baffles 115 on the left and right sides of the intake vent 17, the baffles 115 extend between the top wall 15 and the bottom wall 16, and the panel support 112 is positioned on the front side of the baffles 115 at corresponding locations. The baffle 115 may be integral with the left and right side walls 13 and 14 or may be a separate member.

An opening 151 is formed in the top wall 15, and the bottom end of the fan frame 2 is connected to the edge of the opening 151, so that oil smoke can enter the air inlet assembly 1 through the air inlet 17 and then enter the fan frame 2 through the opening 151.

The range hood further comprises a smoke baffle 4 which can open and close the air inlet 17, and the movement mode of the smoke baffle 4 is not limited, such as common turning, lifting and the like. The left and right ends of the smoke barrier 4 extend out of the corresponding edges of the air inlet 17 and can be shielded at the front side of each baffle 115 in a closed state. The air inlet assembly 1 is provided with a moving mechanism 41, so that the air inlet assembly can be used for driving the smoke baffle 4 to act. To avoid smoke from interfering with the movement mechanism 41, the air intake assembly 1 further includes a partition 18 extending between the front side wall 11 and the rear side wall 12, the partition 18 having two and respectively adjacent to the left side wall 13 and the right side wall 14 of the air intake assembly 1. The partition 18 may have a front end portion extending to the front side wall 11, a rear end portion extending to the rear side wall 12, a lower end portion extending to the bottom wall 16, an upper end portion extending directly to the top wall 15, or a baffle plate or the like may be additionally provided to extend to the top wall 15, as shown in fig. 2. One of the baffles 115 is enclosed between the left side wall 13 and the front end portion of the corresponding partition 18, and the other baffle 115 is enclosed between the right side wall 14 and the front end portion of the corresponding partition 18. Therefore, the space between the left side wall 13 and the corresponding partition plate 18 is isolated from the air inlet 17, and the space between the right side wall 14 and the corresponding partition plate 18 is isolated from the air inlet 17, and the isolation can be realized by other modes of additionally arranging plate pieces.

The moving mechanism 41 may be a conventional mechanism having a driving end and a driven end, one of the driving end and the driven end being located between the left sidewall 13 and the corresponding partition 18, the other of the driving end and the driven end being located between the right sidewall 14 and the corresponding partition 18, and respective output ends of the driving end and the driven end being connectable to the smoke barrier 4 through the blocking plate 115.

An oil cup 5 is arranged below the air inlet component 1 (on the lower side of the bottom wall 16), and the oil cup 5 is shielded on the rear side of the smoke baffle 4 and is in a shape with an open top. When the smoke barrier 4 is in a state of closing the air inlet 17, the lower end thereof exceeds the lower end of the front side wall 11 (the lower end of the air inlet component 1). Therefore, when the smoke baffle 4 is in a state of closing the air inlet 17, the oil cup 5 can be hidden, and when the front side of the air inlet component 1 is seen from the front side, the front side of the air inlet component 1 is provided with two sections of plates (the part of the front side wall 11 above the smoke baffle 4 and the smoke baffle 4, the whole appearance is simple, the consistency is better, the oil cup 5 is prevented from being exposed to be complicated in structure, meanwhile, the oil cup 5 can be conveniently taken and placed, the connection mode of the oil cup 5 and the air inlet component 1 can adopt the prior art, such as a hanging mode.

The air inlet component 1 is provided with a guide plate 7 at the position corresponding to the air inlet 17, the guide plate 7 can be in a state of gradually inclining backwards from bottom to top, and the lower end part of the guide plate 7 corresponds to the upper part of the oil cup 5 (namely the projection on the horizontal plane is positioned in the open part at the top of the oil cup 5). The deflector 7 is used for guiding the oil smoke entering from the air inlet 17 to turn and flow upwards into the fan system 3.

For the complete machine oil circuit problem that brings after solving above-mentioned oil cup 5 sets up, the utility model discloses in, several oil circuit designs as follows have been carried out to ensure that the oil-water mixture (greasy dirt) that the range hood during operation produced can be collected by oil cup 5.

The first oil path: referring to fig. 3 and 4, the lower end of the baffle plate 115 is formed with a bevel 1151 that is gradually inclined backward from top to bottom, and the lower end of the bevel 1151 corresponds to the upper part of the oil cup 5 (i.e., the projection on the horizontal plane is located in the open part at the top of the oil cup 5). Thus, the oil dirt condensed on the right and left sides of the front surface of the air intake assembly 1 is guided to the oil cup 5 through the bevel portion 1151 to be collected. This oil guiding means may be applied to the lower end portion of the front side wall 11 in the entire left-right direction when the lower edge of the air inlet 17 is slightly higher than the lower end portion of the front side wall 11.

A second oil path: referring to fig. 5 to 8, a first oil guide plate 113 is formed at the bottom of the panel bracket 112, and the first oil guide plate 113 is located between the two partition plates 18. The first oil guide plate 113 extends rearward from the panel bracket 112, and the first oil guide plate 113 is formed with a first oil guide groove 114 (formed by downwardly recessing the first oil guide plate 113) having an open top, and preferably, as shown in fig. 6 and 8, the first oil guide plate 113 may have a V-shaped longitudinal section. The left and right ends of the first oil guide plate 113 are respectively provided with a tongue 1131 which is gradually inclined downwards from front to back, and the rear end of the tongue 1131 is located above the deflector 7. The oil stain flowing down from the inner side of the front sidewall 11 can be collected by the first oil guide groove 114, guided to the guide plate 7 by the tongues 1131 at both sides, and guided to the oil cup 5 together with the condensed oil on the guide plate 7. This oil guide may be applied to the entire left-right direction portion of the front side wall 11 when the partition 18 is not provided.

A third oil path: referring to fig. 5, 9 and 10, the fan system 3 is arranged in a front-back direction, that is, an air inlet on the volute 31 faces to the front side or the rear side, and a second oil guide plate 6 is arranged below the volute 31 of the fan system 3, and a front end portion thereof is connected to a front side bottom of the volute 31, and a rear end portion thereof is connected to the rear side of the fan frame 2. The second oil guide plate 6 is formed with a second oil guide groove 61 with an open top, and the bottom surface of the second oil guide groove 61 is gradually inclined downward from front to back. An oil leakage hole may be opened in a rear-side bottom surface of the second oil guide groove 61 or a rear-side end portion of the second oil guide groove 61 may not contact the fan frame 2. An oil leakage hole 161 is formed in the bottom wall 16 of the air inlet assembly 1, and the oil cup 5 corresponds to the lower portion of the oil leakage hole 161. Therefore, the oil smoke forms oil drops through the centrifugal action of the impeller 32 of the fan system 3, and drops into the second oil guide groove 61 from an oil leakage port (not shown, which is a conventional structure) at the bottom of the volute casing 31, and the oil in the second oil guide groove 61 is guided to the rear side of the fan frame 2, flows downward into the bottom of the air intake assembly 1 along the rear side of the fan frame 2, and then enters the oil cup 5 through the oil leakage hole 161 on the bottom wall 16 of the air intake assembly 1 to be collected.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (13)

1. The utility model provides a range hood, includes air inlet subassembly (1), air inlet subassembly (1) is the cavity box structure and including preceding lateral wall (11) that are located the front side, air intake (17) have been seted up to the lower part of preceding lateral wall (11), range hood is still including keeping off cigarette board (4) that can open and close air intake (17), be provided with oil cup (5), its characterized in that under air inlet subassembly (1): when the smoke baffle (4) is in a state of closing the air inlet (17), the lower end of the smoke baffle (4) exceeds the lower end of the air inlet component (1), so that the oil cup (5) is hidden at the rear side of the smoke baffle (4).

2. The range hood of claim 1, wherein: the bottom that preceding lateral wall (11) are located air intake (17) top part is formed with first oil deflector (113), first oil deflector (113) are formed with open-topped first oil guide groove (114), the left and right sides both ends of first oil deflector (113) have tongue (1131) by preceding back gradual downward sloping respectively.

3. The range hood of claim 2, wherein: the air inlet component (1) is internally provided with a guide plate (7) at a position corresponding to the air inlet (17), the guide plate (7) is in a state of gradually inclining backwards from bottom to top, the rear end part of the tongue part (1131) is positioned above the guide plate (7), and the lower end part of the guide plate (7) is corresponding to the upper part of the oil cup (5).

4. The range hood of claim 1, wherein: the bottom of the front side wall (11) is provided with a bevel part (1151) which is gradually inclined backwards from top to bottom, and the lower end of the bevel part (1151) corresponds to the upper part of the oil cup (5).

5. The range hood of claim 1, wherein: the air inlet component (1) is internally provided with a guide plate (7) at a position corresponding to the air inlet (17), and the guide plate (7) is in a state of gradually inclining backwards from bottom to top.

6. The range hood of claim 1, wherein: the range hood further comprises a movement mechanism (41) used for driving the smoke baffle plate (4) to act, the movement mechanism (41) is arranged in the air inlet assembly (1), the movement mechanism comprises a driving end and a driven end, and the output ends of the driving end and the driven end are respectively connected with the smoke baffle plate (4).

7. The range hood of claim 6, wherein: the air inlet assembly (1) further comprises a rear side wall (12) arranged at a rear side of the front side wall (11) at intervals, a left side wall (13) arranged between the left end parts of the front side wall (11) and the rear side wall (12), a right side wall (14) arranged between the right end parts of the front side wall (11) and the rear side wall (12), and a partition plate (18), wherein the partition plate (18) extends between the front side wall (11) and the rear side wall (12), and the partition plate (18) is provided with two parts and is close to the left side wall (13) and the right side wall (14) respectively; the space between the left side wall (13) and the corresponding partition plate (18) is isolated from the air inlet (17), and the space between the right side wall (14) and the corresponding partition plate (18) is isolated from the air inlet (17); one of the driving and driven ends is located in a space between the left side wall (13) and the corresponding diaphragm (18), and the other of the driving and driven ends is located in a space between the right side wall (14) and the corresponding diaphragm (18).

8. The range hood of claim 7, wherein: the front side wall (11) comprises baffle plates (115) positioned at the left side and the right side of the air inlet (17), one baffle plate (115) is sealed between the left side wall (13) and the front end part of the corresponding partition plate (18), the other baffle plate (115) is sealed between the right side wall (14) and the front end part of the corresponding partition plate (18), and the output ends of the driving end and the driven end penetrate through the baffle plates (115) at the corresponding positions to be connected with the smoke baffle plate (4).

9. The range hood of claim 8, wherein: the bottom of the baffle (115) is provided with a bevel part (1151) which is gradually inclined backwards from top to bottom, and the lower end of the bevel part (1151) corresponds to the upper part of the oil cup (5).

10. The range hood of claim 8, wherein: the left end and the right end of the smoke baffle plate (4) extend out of the corresponding edges of the air inlet (17), and the smoke baffle plate (4) is shielded at the front side of each baffle plate (115) in a state of closing the air inlet (17).

11. The range hood of claim 7, wherein: the bottom that preceding lateral wall (11) are located air intake (17) top part is formed with first oil deflector (113), first oil deflector (113) are formed with open-topped first oil guide groove (114) first oil deflector (113) about both ends have respectively by preceding tongue (1131) of back gradual downward sloping, first oil deflector (113) are located between two baffles (18).

12. The range hood according to any one of claims 1 to 11, wherein: be provided with fan frame (2) on air inlet subassembly (1), be provided with fan system (3) in fan frame (2), fan system (3) are around to arranging, the below of fan system (3) is provided with the second and leads oiled plate (6), the preceding end connection of second oil guide plate (6) is in the front side bottom of fan system (3), the rear end connection of second oil guide plate (6) is in the rear side of fan frame (2), oiled plate (6) are led to the second is formed with the open second in top and leads oil groove (61), the bottom surface of oil groove (61) is led by preceding slope downwards gradually to the back to the second.

13. The range hood according to any one of claims 1 to 11, wherein: the air inlet assembly (1) further comprises a bottom wall (16) located at the bottom, an oil leakage hole (161) is formed in the bottom wall (16), and the oil cup (5) corresponds to the lower portion of the oil leakage hole (161).

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