CN114110683B - Fume exhaust fan - Google Patents

Abstract

The application provides a range hood, comprising: a frame; the guide plate is internally provided with a guide cavity; the oil cup is arranged at the bottom of the rear end of the guide plate; the condensing plate assembly comprises a condensing plate and an oil receiving groove arranged at the rear end of the condensing plate, and the oil receiving groove is connected with the inner wall surface of the rear end of the guide plate in a matched manner; the oil receiving groove is provided with an oil guiding groove communicated with the flow guiding cavity, and oil collected on the condensing plate can flow into the oil guiding groove along the condensing plate. According to the range hood provided by the application, the oil collecting groove is arranged at the rear end of the condensing plate, so that the oil collected on the condensing plate can flow into the oil guiding groove, flow into the flow guiding cavity through the oil guiding groove and then flow into the oil cup, the mounting position of the oil cup does not need to move forward, condensed oil below the oil cup is prevented from falling into a pot of a user, the double-oil-cup function can be realized by only using one oil cup, the manufacturing cost is reduced, and meanwhile, the flow path of the condensed oil is positioned outside the sight of the user, so that the user experience and the cleaning of the appearance surface of the whole range hood in the use process can be improved.

Description

Fume exhaust fan

Technical Field

The application belongs to the technical field of kitchen equipment, and particularly relates to a range hood.

Background

The range hood is a common electrical appliance in a kitchen, and the European-style range hood is favored by more and more users because the appearance lines are concise and the smoking effect is good. The condensing plate is an important part of the European-style smoke machine, and is usually arranged below an air inlet of the smoke machine, and can effectively block condensed oil and condensed water falling in the smoke machine and simultaneously enable negative pressure of the smoke machine to move downwards and expand outwards.

The rising oil smoke impinges on the condensing plate during cooking, and the condensing plate condenses the back and reenters the cigarette machine inside, and the oil smoke gets into along the condensing plate periphery. In the related art, an oil cup is arranged at the rear lower part of a condensing plate, condensed oil left by the condensing plate directly enters the oil cup, and the mounting position of the oil cup usually needs to move forward, so that the condensed oil is easy to appear below the oil cup, and the condensed oil dropped below the oil cup is easy to drop into a pot of a user; meanwhile, as the coverage area of the oil cup is smaller, the smoke collecting cavity of the whole smoke machine cannot be covered, if condensed oil is formed in the smoke collecting cavity, one oil cup needs to be additionally arranged, namely, the front side and the rear side are respectively provided with the oil cup, so that the smoke machine is relatively high in manufacturing cost, and the appearance of the whole smoke machine can be influenced by the oil cup at the front side.

Disclosure of Invention

The embodiment of the application aims to provide a range hood, which solves the technical problems that condensed oil is easy to appear below an oil cup, the condensed oil dropped below the oil cup is easy to drop into a pot of a user, the coverage area of the oil cup is small, a smoke collecting cavity of the whole range hood cannot be covered, one oil cup is required to be arranged at the front side and the rear side respectively, the manufacturing cost of the range hood is high, and the oil cup at the front side can influence the appearance of the whole range hood in the prior art.

In order to achieve the above purpose, the application adopts the following technical scheme: there is provided a condensation plate assembly comprising:

a frame;

the guide plate is arranged at the bottom of the frame, and a guide cavity is arranged in the guide plate;

the oil cup is arranged at the bottom of the rear end of the guide plate, and the inner cavity of the oil cup is communicated with the guide cavity;

the condensing plate assembly is arranged in the space surrounded by the guide plate and comprises a condensing plate and an oil receiving groove arranged at the rear end of the condensing plate, and the oil receiving groove is connected with the inner wall surface of the rear end of the guide plate in a matched manner;

the oil receiving groove is provided with an oil guiding groove communicated with the flow guiding cavity, and oil collected on the condensing plate can flow into the oil guiding groove along the condensing plate.

In one embodiment, the bottom surface of the guide plate is provided with a through hole communicated with the inner cavity of the oil cup, the inner wall surface of the guide plate is provided with a mounting hole, and a part of the oil receiving groove extends into the guide cavity through the mounting hole so that the oil guiding groove is communicated with the guide cavity.

In one embodiment, the oil receiving groove comprises a base and an extension part which are connected, the extension part is connected to the rear end of the top surface of the base, a lug is arranged on the rear side surface of the extension part, the lug penetrates through the mounting hole and stretches into the diversion cavity, the oil guiding groove comprises a groove arranged on the top surface of the base and a transition groove arranged at the bottom of the lug, and the groove is communicated with the diversion cavity through the transition groove.

In one embodiment, the top surface of the extension part is provided with a protrusion, and the protrusion abuts against the inner wall surface of the guide plate.

In one embodiment, the rear end of the condensing plate is cooperatively connected with the extension and extends above the recess.

In one embodiment, the rear end of the condensation plate is provided with a fixing seat, the protruding block is provided with a positioning groove adapted to one end of the fixing seat, the extending part is provided with a perforation communicated with the positioning groove corresponding to the protruding block, and one end of the fixing seat penetrates through the perforation and stretches into the positioning groove.

In one embodiment, the positioning groove is an arc groove.

In one embodiment, the rear edge of the condensing plate is provided with an upward extending flange, the bottom surface of the fixing seat is provided with a clamping groove for clamping the flange, the rear edge of the condensing plate is provided with an oil filtering hole, and the oil filtering hole is located right above the groove.

In one embodiment, a plurality of protruding blocks are arranged on the rear side surface of the extension part at intervals, and the fixing base is respectively installed at the rear end of the condensing plate at positions corresponding to the protruding blocks.

In one embodiment, the cold plate assembly is disposed at a downward incline from front to back.

In one embodiment, the left side, the right side and the front side of the condensation plate assembly are respectively spaced from the inner wall surface of the corresponding side of the deflector.

In one embodiment, the condensing plate comprises a first sub condensing plate and a second sub condensing plate which are arranged side by side at intervals, and an air inlet gap is formed between the first sub condensing plate and the second sub condensing plate; the condensing plate assembly further comprises an oil blocking part arranged at the air inlet gap, two opposite ends of the oil blocking part are respectively connected with the first sub condensing plate and the second sub condensing plate, and the oil blocking part is provided with a plurality of air inlet holes communicated with the air inlet gap.

In one embodiment, the oil blocking portion includes a first side plate, a second side plate and a top plate, the first side plate extends upwards from the first sub-condensation plate, the second side plate extends upwards from the second sub-condensation plate, the top plate is connected to the upper edge of the first side plate and the upper edge of the second side plate, and the first side plate and the second side plate are respectively provided with a plurality of air inlets.

In one embodiment, the oil blocking part further comprises a middle beam, the top surface of the middle beam is fixed with the bottom surface of the top plate, a space is reserved between the first side plate and the second side plate and the middle beam, and the front end and the rear end of the middle beam are respectively connected and fixed with the inner wall surfaces of the front side and the rear side of the guide plate.

The range hood provided by the application has the beneficial effects that: compared with the prior art, the oil receiving groove is arranged at the rear end of the condensing plate, the guide groove of the oil receiving groove is communicated with the guide cavity in the guide plate, so that oil collected on the condensing plate can flow into the guide groove, flow to the guide cavity through the guide groove and then flow into the oil cup, the mounting position of the oil cup does not need to move forwards, condensed oil cannot appear below the oil cup, condensed oil is prevented from appearing below the oil cup and dripping into a pot of a user, the oil path design of the condensing plate is optimized, the double-oil-cup function can be realized by only using one oil cup, and the manufacturing cost is reduced; meanwhile, the flowing paths of the condensed oil are all outside the sight of the user, so that the user experience and the cleaning of the appearance surface of the whole machine in the using process can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a cut-away view of a range hood according to an embodiment of the present application;

fig. 2 is an exploded view of the range hood of fig. 1;

fig. 3 is a longitudinal sectional view of the range hood shown in fig. 1;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

fig. 5 is a perspective view of a condensation plate assembly of the range hood of fig. 1;

FIG. 6 is an exploded view of the cold plate assembly of FIG. 5;

FIG. 7 is a perspective view of the oil sump of FIG. 6;

FIG. 8 is an enlarged schematic view of portion B of FIG. 7;

FIG. 9 is a longitudinal cross-sectional view of the oil sump in the cold plate assembly of FIG. 6;

fig. 10 is a perspective view of the fixing base of the condensing plate assembly shown in fig. 6.

Wherein, each reference sign in the figure:

10-a frame; 20-a deflector; 30-an oil cup; 40-a condensate plate assembly; 50-check valve; 60-a control panel; 100-condensing plate; 200-oil receiving grooves; 300-fixing seat; 400-oil baffle part; 21-a diversion cavity; 22-mounting holes; 23-through holes; 101-an oil filtering hole; 102-flanging; 110-a first sub-condensing plate; 120-a second sub-condensing plate; 201-an oil guide groove; 210-base; 220-extensions; 230-bump; 211-grooves; 221-perforating; 222-bump; 231-positioning grooves; 231-transition groove; 310-clamping groove; 401-air inlet gap; 402-an air inlet; 410-a first side plate; 420-a second side plate; 430-top plate; 440-middle beam.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

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

Referring to fig. 1 to 4, a range hood according to an embodiment of the present application will now be described. The range hood comprises a frame 10, a baffle 20, an oil cup 30 and a condensing plate assembly 40. The guide plate 20 can be arranged at the bottom of the frame 10 through a flange, and an air inlet is formed at the joint of the guide plate 20 and the frame 10; as shown in fig. 1, 2 and 4, a guide cavity 21 is provided in the guide plate 20, and the condensation plate assembly 40 is disposed in a space enclosed by the guide plate 20 and located right below the air inlet. As shown in fig. 1, 3 and 4, the condensation plate assembly 40 includes a condensation plate 100 and an oil receiving groove 200 installed at the rear end of the condensation plate 100; the oil cup 30 is installed at the bottom of the rear side of the deflector 20, and the inner cavity of the oil cup 30 is communicated with the deflector cavity 21 for collecting oil. The condensation plate 100 may be a single condensation plate 100 or a double condensation plate 100, and the left side, the right side and the front side of the condensation plate 100 are respectively spaced from the inner wall surfaces corresponding to the guide plate 20, so that channels for supplying the oil smoke to flow into the air inlet are respectively formed on the left side, the right side and the front side of the condensation plate 100, and when the range hood works, the smoke or air can flow from the channels on the left side, the right side and the front side of the condensation plate 100 to the air inlet and further enter the rack 10; connect the internal face cooperation of oil groove 200 and guide plate 20 rear end to be connected, connect the oil groove 200 to be equipped with and lead the oil groove 201, the length of leading the oil groove 201 is slightly greater than the length of condensate plate 100, should lead the oil groove 201 and lead the intercommunication of water conservancy diversion chamber 21, the oil that gathers on the condensate plate 100 hand can follow the condensate plate 100 and flow into this and lead the oil groove 201 in, connect the mounted position that the oil cup 30 need not move forward to the setting of oil groove 200 makes, the condensate oil can not appear in oil cup 30 below, avoided the drip to user's pot in, only use an oil cup 30 to realize double oil cup 30 function promptly, save the cost. Due to the arrangement of the oil receiving groove 200, the oil cup 30 is positioned at the rear side, and the flow paths of the condensed oil are all positioned outside the sight line of the user, so that the user experience in the using process of the range hood can be improved, and meanwhile, the cleaning of the appearance surface of the whole range hood can be also improved. The range hood further comprises a volute, an air inlet net and a check valve 50; the volute is arranged in the frame 10, the volute provides power for smoke suction, the check valve 50 is arranged at the top of the frame 10 and is communicated with an outlet of the volute, the check valve is used for sucking the oil smoke and the air of the range hood and discharging the oil smoke and the air to a public flue or the outside, and the air inlet net is arranged at the air inlet; the front side of the deflector 20 is also provided with a control panel 60, and the working state of the range hood can be controlled and the working mode can be switched through the control panel 60.

Compared with the prior art, the range hood provided by the application has the advantages that the oil receiving groove 200 is arranged at the rear end of the condensing plate 100, the diversion groove of the oil receiving groove 200 is communicated with the diversion cavity 21 in the diversion plate 20, so that oil collected on the condensing plate 100 can flow into the oil guiding groove 201, flow into the diversion cavity 21 through the oil guiding groove 201 and then flow into the oil cup 30, the installation position of the oil cup 30 does not need to move forward, condensed oil cannot appear below the oil cup 30, condensed oil is prevented from appearing below the oil cup 30 and dripping into a pot of a user, the oil path design of the condensing plate 100 is optimized, the double-oil-cup 30 function can be realized by only using one oil cup 30, and the manufacturing cost is reduced; meanwhile, the flowing paths of the condensed oil are all outside the sight of the user, so that the user experience and the cleaning of the appearance surface of the whole machine in the using process can be improved.

In an embodiment, referring to fig. 2 to 4, the condensation plate assembly 40 is disposed obliquely downward from front to back, and the height position of the rear portion of the condensation plate assembly 40 is lower than the height position of the front portion, so that the oil attached to the condensation plate assembly 40 can flow into the oil guiding groove 201 more rapidly under the action of gravity, so as to increase the oil discharging speed, and the inclination angle of the condensation plate assembly 40 can be set according to practical application requirements. The rear edge of the condensation plate 100 may be provided with an oil filtering hole 101 or a notch, so that the oil on the upper surface of the condensation plate 100 drops into the oil guiding groove 201 through the oil filtering hole 101 or the notch.

In an embodiment, referring to fig. 2 to 4, a through hole 23 is formed on the bottom surface of the deflector 20, and the through hole 23 enables the deflector cavity 21 to communicate with the inner cavity of the oil cup 30; the inner wall surface of the guide plate 20 is provided with a mounting hole 22, and a part of the oil receiving groove 200 extends into the guide cavity 21 through the mounting hole 22, so that the oil guiding groove 201 is communicated with the guide cavity 21; the top surface of the oil cup 30 is opened, and the oil cup 30 is fixedly arranged at the bottom of the rear end of the guide plate 20 through a connecting piece. The oil on the condensation plate assembly 40 flows into the diversion cavity 21 through the oil guiding groove 201, and the oil in the diversion cavity 21 drops into the oil cup 30 through the through hole 23 on the bottom surface.

In an embodiment, referring to fig. 7 to 9, the oil receiving groove 200 includes a base 210 and an extension 220 connected to each other, the extension 220 is connected to the rear end of the top surface of the base 210, the longitudinal section of the oil receiving groove 200 is L-shaped, and the groove 211 extends to the bottom of the protrusion 230. The rear side of the extension part 220 is provided with a lug 230, and the lug 230 passes through the mounting hole 22 and stretches into the diversion cavity 21; the oil guiding groove 201 comprises a groove 211 arranged on the top surface of the base 210 and a transition groove 231 arranged at the bottom of the protruding block 230, and the groove 211 is communicated with the flow guiding cavity 21 through the transition groove 231. That is, the transition groove 231 is a groove body with openings at least on two sides, and after flowing into the groove 211, the oil flows into the transition groove 231 at the bottom of the protruding block 230, and then drops into the diversion cavity 21 through the opening on one side of the transition groove 231. The transition groove 231 is opened at the left side, the right side and the front side, so that oil can drop into the diversion cavity 21 from the openings at the left side and the right side when passing through the transition groove 231, and the flow path of the oil is shown by arrows in fig. 4.

In one embodiment, referring to fig. 4, 8 and 9, the top surface of the extension portion 220 is provided with a protrusion 222, and the protrusion 222 may be disposed on the top surface of the extension portion 220 near the front end; the protrusion 222 abuts against the inner wall surface of the baffle 20, and the protrusion 222 can limit the position of the oil receiving groove 200 inserted into the diversion cavity 21; the wall of the mounting hole 22 may be provided with an arc chamfer, the protrusion 222 is an arc protrusion, the joint between the rear side surface of the protrusion 222 and the top surface of the extension portion 220 is smoothly transited, and the joint is adapted to the arc chamfer of the mounting hole 22, so that the protrusion 222 will not be scratched when propped against the inner wall surface of the deflector 20.

In one embodiment, referring to fig. 4, 8 and 9, the rear end of the condensation plate 100 is cooperatively connected with the extension 220 and extends above the recess 211. The condensation plate 100 and the extension part 220 can be assembled by mutually matched structures so as to be relatively fixed, and can also be assembled and fixed by connecting pieces. Since the rear end of the condensing plate 100 extends above the groove 211, the rear end of the condensing plate 100 is suspended with respect to the base 210, so that oil on the lower surface of the condensing plate 100 can flow and drop into the groove 211.

In an embodiment, referring to fig. 4, 6 and 8, the rear end of the condensation plate 100 is provided with a fixing base 300, the bump 230 is provided with a positioning slot 231 adapted to one end of the fixing base 300, the extension portion 220 is provided with a through hole 221 corresponding to the bump 230 and communicated with the positioning slot 231, and one end of the fixing base 300 passes through the through hole 221 and extends into the positioning slot 231. The condensation plate 100 is in fit connection with the oil receiving groove 200 through the positioning fit of the fixing seat 300 and the positioning groove 231, namely, the condensation plate 100 and the oil receiving groove 200 are detachably assembled, and the condensation plate 100 and the oil receiving groove 200 are in positioning butt joint through the insertion connection between the fixing seat 300 and the positioning groove 231.

In an embodiment, referring to fig. 4, 8 and 9, the positioning groove 231 of the protruding block 230 is an arc groove, and the longitudinal section of the positioning groove 231 may be a semicircle, so that the positioning and docking between the condensation plate assembly 40 and the oil receiving groove 200 are facilitated, the assembly efficiency between the two is improved, and the assembly difficulty is reduced. Meanwhile, the arc-shaped groove is provided, so that the inclination angle of the condensing plate 100 can be finely adjusted by rotation, thus facilitating the assembly of the condensing plate assembly 40 inside the baffle 20. It will be appreciated that the longitudinal cross-section of the detent 231 may be of other regular geometric shapes, such as rectangular, oval, etc.

In an embodiment, referring to fig. 4, 6 and 10, the rear edge of the condensation plate 100 is provided with an upwardly extending flange 102, and the bottom surface of the fixing base 300 is provided with a clamping groove 310 into which the flange 102 is clamped; the connection position of the flange 102 and the condensation plate 100 can be provided with an oil filtering hole 101, so that the oil on the upper surface of the condensation plate 100 can flow into the oil guiding groove 201 through the oil filtering hole 101. It will be appreciated that the edges of the condensation plate 100 on the other sides may also be provided with upwardly extending flanges 102. During installation, the clamping groove 310 on the bottom surface of the fixing base 300 is aligned with the flange 102 on the rear edge of the condensation plate 100, the fixing base 300 is pressed by applying force, so that the fixing base 300 is clamped on the flange 102, and then the rear side of the fixing base 300 is aligned and inserted into the positioning groove 231 in front of the protruding block 230.

The rear edge of the condensation plate 100 is provided with oil filtering holes 101, and a plurality of oil filtering holes 101 can be arranged at intervals; the oil filtering hole 101 is located right above the groove 211, so that the oil on the upper surface of the condensation plate 100 can drip into the groove 211 through the oil filtering hole 101, further flow to the diversion cavity 21 through the oil guiding groove 201, and drip into the oil cup 30. It is understood that the oil filtering hole 101 may be a circular hole, an elliptical hole, or a rectangular hole; the oil filtering holes 101 may extend to the flange 102 at the rear edge of the condensing plate 100.

In an embodiment, referring to fig. 4, 7 and 8, a plurality of protrusions 230 are disposed on the rear side of the extension portion 220 at intervals, the fixing bases 300 are respectively mounted at positions of the rear end of the condensation plate 100 corresponding to the protrusions 230, and the protrusions 230 are disposed in one-to-one correspondence with the positions of the fixing bases 300. By arranging the plurality of spaced projections 230 and the fixing base 300, the stability of the cooperation connection between the condensation plate 100 and the oil receiving groove 200 can be further improved. As shown in fig. 2 and 7, 4 fixing seats 300 are provided at intervals, and 4 mounting holes 22 are correspondingly formed in the inner wall surface of the rear end of the deflector 20.

In an embodiment, referring to fig. 2, 5 and 6, the condensing plate 100 includes a first sub-condensing plate 110 and a second sub-condensing plate 120 arranged side by side at intervals, and an air intake gap 401 is formed between the first sub-condensing plate 110 and the second sub-condensing plate 120; the first sub-condensing plate 110 and the second sub-condensing plate 120 are both inclined, and the inclination angles of the two are equal.

The condensation plate assembly 40 further comprises an oil blocking part 400 arranged at the air inlet gap 401, two opposite ends of the oil blocking part 400 are respectively connected with the first sub-condensation plate 110 and the second sub-condensation plate 120, and the first sub-condensation plate 110 and the second sub-condensation plate 120 are arranged on the left side and the right side of the oil blocking part 400 in a mirror symmetry manner; the oil baffle 400, the first sub-condensing plate 110 and the second sub-condensing plate 120 may be integrally formed, or may be connected by welding, riveting, or the like. The oil baffle part 400 is provided with a plurality of air inlet holes 402 communicated with the air inlet gap 401, the air inlet holes 402 can be flanging holes, and oil smoke can flow from the air inlet gap 401 to the air inlet through the air inlet holes 402. By providing the first sub-condensing plate 110 and the second sub-condensing plate 120 spaced apart, the size of the single condensing plate 100 is reduced; by providing the oil blocking portion 400, the oil droplets falling from the inside are contained by the oil blocking portion 400, and can be prevented from falling from the air inlet gap 401 between the first sub-condensation plate 110 and the second sub-condensation plate 120.

The oil baffle 400 protrudes upward 222 or is recessed downward with respect to the first and second sub-condensing panels 110 and 120; the condensation plate 100 is located right below the air inlet, and the oil blocking part 400 may be located at the center of the air inlet in the left-right direction; the first sub-condensing plate 110 and the second sub-condensing plate 120 may be disposed parallel to the vertical direction, and the axial direction of the air inlet hole 402 is disposed perpendicular to the vertical direction, that is, the direction of the air flow passing through the air inlet hole 402. The oil baffle part 400 is provided with the air inlet hole 402, so that oil smoke can enter the range hood from the air inlet hole 402 through the air inlet gap 401 between the first sub-condensation plate 110 and the second sub-condensation plate 120, the front end flow channel is optimized, the front end negative pressure distribution is more reasonable, the back vortex is effectively reduced, the vortex noise is reduced, the negative pressure near the air inlet can be enlarged, the smoking effect of the range hood is improved, the axial direction and the vertical direction of the air inlet hole 402 are not parallel, and thus, the oil drops dropping in the air inlet hole 402 can not directly pass through and drop to the lower part of the range hood. Because the smoke can be supplemented into the interior between the first sub-condensing plate 110 and the second sub-condensing plate 120, the smoke amount entering from the periphery of the condensing plate 100 can be reduced, and the formation of condensed oil around the deflector 20 can be reduced, so that the problem that the deflector 20 is easy to drip oil can be solved, and the smoke discharging effect can be improved.

In an embodiment, referring to fig. 5 and 6, the oil baffle 400 includes a first side plate 410, a second side plate 420 and a top plate 430, the first side plate 410 extends upward from the first sub-condensation plate 110, the second side plate 420 extends upward from the second sub-condensation plate 120, and the top plate 430 is connected to an upper edge of the first side plate 410 and an upper edge of the second side plate 420, that is, the oil baffle 400 protrudes upward 222 relative to the first sub-condensation plate 110 and the second sub-condensation plate 120. The bottoms of the first side plate 410 and the second side plate 420 may be respectively provided with a connecting edge extending horizontally outwards, and the connecting edge is connected with the first sub-condensing plate 110 and the second sub-condensing plate 120 by screws.

The first side plate 410 and the second side plate 420 are respectively provided with a plurality of air inlet holes 402, the air inlet holes 402 can be flanging holes, and an oil guide channel is formed between the flanging holes between the adjacent air inlet holes 402, so that the flow direction of oil can be guided, the flow path of the oil can be limited, and the oil on the oil baffle part 400 can be guided to the upper surfaces of the first sub-condensation plate 110 and the second sub-condensation plate 120 on two sides conveniently. The top plate 430 may be a flat plate or may be composed of two inclined plates; as shown in fig. 6, the top plate 430 includes a middle plate and sub-plates connected to both sides of the middle plate, and the sub-plates on both sides are connected to upper edges of the first and second side plates 410 and 420, respectively, while being inclined downward. It will be appreciated that the longitudinal cross section of the top plate 430 may also be upwardly convex arc, triangle or polygon.

As shown in fig. 2 and 6, the first side plate 410 and the second side plate 420 are disposed parallel to the vertical direction, and the oil droplets falling inside the range hood first fall onto the top plate 430, further fall onto the first sub-condensation plate 110 and the second sub-condensation plate 120 under the guidance of the top plate 430, and the oil droplets do not leak out from the air inlet holes 402 during the falling process because the air inlet holes 402 are disposed in the first side plate 410 and the second side plate 420.

In an embodiment, referring to fig. 5 and 6, the oil baffle portion 400 further includes a middle beam 440, the middle beam 440 has a length greater than that of the oil baffle portion 400, and the first side plate 410 and the second side plate 420 are spaced apart from the side surface of the middle beam 440; the top surface of the middle beam 440 can be fixedly connected with the bottom surface of the middle plate of the top plate 430 through screws, and the middle beam 440 can be fixedly connected with the top plate 430 through other modes such as welding and clamping; the front and rear ends of the middle beam 440 are respectively connected and fixed with the inner wall surfaces of the front and rear sides of the guide plate 20, the inner wall surfaces of the front end of the guide plate 20 are inclined surfaces, the front and rear end surfaces of the middle beam 440 are inclined surfaces, the cross section of the middle beam 440 along the direction perpendicular to the axis is isosceles trapezoid, and the inclined surface of the front end of the middle beam 440 is matched with the inner wall surface of the front end of the guide plate 20 and is fixed through screw connection. The provision of the intermediate beam 440 serves, on the one hand, as an oil barrier and, on the other hand, provides support for the condensate plate assembly 40. As shown in fig. 4, 6 and 8, the rear end of the intermediate beam 440 extends above the oil guide groove 201, and oil on the surface of the intermediate beam 440 may flow into the oil guide groove 201.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims (10)

1. A range hood, characterized in that: comprising the following steps:

a frame;

the guide plate is arranged at the bottom of the frame, and a guide cavity is arranged in the guide plate;

the oil cup is arranged at the bottom of the rear end of the guide plate, and the inner cavity of the oil cup is communicated with the guide cavity;

the condensing plate assembly is arranged in the space surrounded by the guide plate and comprises a condensing plate and an oil receiving groove arranged at the rear end of the condensing plate;

the oil receiving groove is provided with an oil guiding groove which is communicated with the flow guiding cavity, is formed in a front-to-back mode and penetrates through the rear end face of the oil receiving groove, and the oil cup is communicated with the rear end of the oil guiding groove; the bottom surface of the guide plate is provided with a through hole communicated with the inner cavity of the oil cup, the inner wall surface of the guide plate is provided with a mounting hole, and a part of the oil receiving groove extends into the guide cavity through the mounting hole so that the oil guiding groove is communicated with the guide cavity; the oil collected on the condensing plate can flow into the oil guide groove along the condensing plate and backwards, and falls into the oil cup from the rear end of the oil guide groove;

the oil receiving groove comprises a base part and an extension part which are connected, the extension part is connected to the rear end of the top surface of the base part, a lug is arranged on the rear side surface of the extension part, the lug penetrates through the mounting hole and stretches into the flow guiding cavity, the oil guiding groove comprises a groove arranged on the top surface of the base part and a transition groove arranged at the bottom of the lug, and the groove is communicated with the flow guiding cavity through the transition groove;

the top surface of the extension part is provided with a bulge, and the bulge is propped against the inner wall surface of the guide plate;

the rear end of the condensing plate is connected with the extension part in a matching way and extends to the upper part of the groove.

2. The range hood of claim 1, wherein: the rear end of the condensing plate is provided with a fixing seat, the convex block is provided with a positioning groove matched with one end of the fixing seat, the position of the extending part corresponding to the convex block is provided with a perforation communicated with the positioning groove, and one end of the fixing seat penetrates through the perforation and stretches into the positioning groove.

3. The range hood of claim 2, wherein: the positioning groove is an arc-shaped groove.

4. The range hood of claim 2, wherein: the back border of condensation plate is equipped with the turn-ups that upwards extend, the confession has been seted up to the bottom surface of fixing base the draw-in groove that the turn-ups card was gone into, the oil strain hole has been seted up to the back border of condensation plate, the oil strain hole is located directly over the recess.

5. The range hood of claim 2, wherein: the rear side of the extension part is provided with a plurality of protruding blocks at intervals, and the fixing seats are respectively arranged at the positions of the rear ends of the condensing plates, which correspond to the protruding blocks.

6. The range hood of any one of claims 1-5, wherein: the condensation plate assembly is arranged in a downward inclined mode from front to back.

7. The range hood of any one of claims 1-5, wherein: the left side, the right side and the front side of the condensing plate component are respectively provided with a space with the inner wall surface of the corresponding side of the guide plate.

8. The range hood of any one of claims 1-5, wherein: the condensing plate comprises a first sub condensing plate and a second sub condensing plate which are arranged side by side at intervals, and an air inlet gap is formed between the first sub condensing plate and the second sub condensing plate; the condensing plate assembly further comprises an oil blocking part arranged at the air inlet gap, two opposite ends of the oil blocking part are respectively connected with the first sub condensing plate and the second sub condensing plate, and the oil blocking part is provided with a plurality of air inlet holes communicated with the air inlet gap.

9. The range hood of claim 8, wherein: the oil baffle part comprises a first side plate, a second side plate and a top plate, wherein the first side plate extends upwards from the first sub-condensation plate, the second side plate extends upwards from the second sub-condensation plate, the top plate is connected to the upper edge of the first side plate and the upper edge of the second side plate, and the first side plate and the second side plate are respectively provided with a plurality of air inlets.

10. The range hood of claim 9, wherein: the oil baffle part further comprises a middle beam, the top surface of the middle beam is fixed with the bottom surface of the top plate, a space is reserved between the first side plate and the second side plate and the middle beam, and the front end and the rear end of the middle beam are respectively connected and fixed with the inner wall surfaces of the front side and the rear side of the guide plate.