CN212378032U

CN212378032U - Fume exhaust fan

Info

Publication number: CN212378032U
Application number: CN202020066605.1U
Authority: CN
Inventors: 刘杰; 李斌; 徐鑫; 陈浩辉; 申志贤
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-14
Filing date: 2020-01-13
Publication date: 2021-01-19
Anticipated expiration: 2030-01-13
Also published as: CN111156555B; CN111156555A

Abstract

The utility model relates to a range hood, including the casing and locate the fan system in this casing, the casing lower part has the smoke inlet chamber of vertical extension, and it has the smoke inlet that is linked together with this smoke inlet chamber to open on the preceding lateral wall of casing lower part, and casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, and the collection smoke chamber extends forward and forms the installation cavity that is used for installing fan system, the air intake and the collection smoke chamber of fan system are linked together, and the bottom of installation cavity is provided with lighting components. The smoke inlet cavity at the lower part of the shell of the utility model extends vertically, so that the width of the smoke inlet cavity in the front and back directions can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and an oil smoke generating source, thereby the oil smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards as soon as the oil smoke is generated, and the oil smoke suction effect is improved; the appearance of cooperation range hood, the illumination subassembly that sets up in the installation cavity bottom can realize straight following formula illumination, improves the illuminating effect, facilitates for the user.

Description

Fume exhaust fan

Technical Field

The utility model relates to a for kitchen use household electrical appliances technical field specifically indicates a range hood.

Background

Range hood is the electrical apparatus that is essential in the kitchen at present, and is comparatively common and use more extensively to arrange oily smoke purification system in last.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more attractive, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

In addition, when cooking is carried out at night, the cooking condition can not be clearly observed because the illumination angle of the kitchen can not be concentrated at the cooker. In order to solve the problem, the structure of installing the lighting lamp has appeared on the existing range hood, but to the range hood that can contact the oil smoke closely, the range hood is limited by the appearance, and the direct type effective lighting structure is difficult to install, resulting in poor lighting effect, and can not satisfy the consumer demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a through making the smoke inlet fully be close the oil smoke source and improve the range hood of oil absorption cigarette effect.

The utility model discloses another technical problem that will solve is to prior art's current situation, provides a range hood that can provide illuminating effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the casing and locates the fan system in this casing, its characterized in that: the utility model discloses a fan system, including casing, casing lower part, the casing lower part has the smoke inlet chamber of vertical extension, it has the smoke inlet that is linked together with this smoke inlet chamber to open on the preceding lateral wall of casing lower part, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the forward extension of collection smoke chamber forms the installation cavity that is used for installing fan system, fan system's air intake is linked together with collection smoke chamber, the bottom of installation cavity is provided with lighting components.

In order to facilitate assembly, the upper part of the shell is provided with a fan frame for mounting a fan system and a fan outer cover covering the fan frame, and the lighting assembly is arranged at the bottom of the fan outer cover.

Preferably, the lighting assembly is detachably arranged on the fan outer cover through a mounting assembly.

Preferably, the assembly component is at least including the assembly plate, on this assembly plate was located to lighting assembly, the lateral part edge of fan dustcoat lower extreme was provided with the first limit edge of bending inwards, and it has the first spacing mouth that extends around to open on this first limit edge, and is corresponding, the lateral part edge of assembly plate is provided with can be with this first spacing mouthful spacing first card of joint mutually. A first gap capable of clamping the front side edge of the first limiting opening is formed between the front end of the first clamping piece and the edge of the assembling plate, and the first clamping piece penetrates through the first limiting opening and moves forwards along with the assembling plate to enable the front side edge of the first limiting opening to be clamped in the first gap for limiting. During the assembly, make first card and first spacing mouthful align, upwards push away the assembly plate, pass first spacing mouthful as first card, push away the assembly plate forward again, it is spacing in first gap to arrange the leading edge card of first spacing mouthful in, this assembly structure is convenient for operate.

In order to be attractive and avoid oil smoke invasion, the bottom of the fan outer cover is provided with a panel capable of covering the assembling plate, and the panel is provided with an opening for exposing the luminous surface of the lighting assembly.

Preferably, the assembling plate is provided with an assembling opening arranged corresponding to the opening, the lighting assembly is inserted into the assembling opening, and the assembling plate is provided with an elastic sheet which can be pressed on the lighting assembly to enable the bottom of the lighting assembly to be abutted against the panel on the outer edge of the opening. This structure is convenient for carry on spacingly to lighting assembly, with its restraint on the assembly panel and fix a position the position of light emitting area.

In order to improve the stability of the installation of the lighting assembly, the edge of the assembling opening extends upwards to form an assembling edge capable of covering the edge of the lighting assembly.

In order to facilitate operation, a first vertical plate and a second vertical plate which are respectively positioned at two sides of the assembling opening are arranged on the assembling plate, a first bayonet is formed in the first vertical plate, and correspondingly, a first clamping pin which can be inserted into the first bayonet is arranged at the first end of the elastic sheet; the second vertical plate is provided with a second bayonet, correspondingly, the second end of the elastic sheet is provided with a second clamping pin which can be matched with the second bayonet for limiting.

Preferably, the second bayonet is arranged higher than the first bayonet, a pressing piece capable of being pressed on the top of the lighting assembly is formed in the middle of the elastic piece, a first connecting piece capable of being connected with the first bayonet is formed by extending the edge of the pressing piece close to the first bayonet obliquely downwards, and a second connecting piece capable of being connected with the second bayonet is formed by extending the edge of the pressing piece close to the second bayonet obliquely upwards. The structure is convenient for installing the elastic sheet and improves the stability of installing the lighting assembly.

Preferably, the rear side of fan dustcoat bottom is provided with and enables assembly plate and fan dustcoat to keep spacing state and prevent the limiting plate that the assembly plate moved backward. The limiting plate is provided to prevent the fitting plate from moving backward.

Preferably, the limiting plate takes the shape of the U-shaped structure that the opening was arranged towards the back, the vertical extension of limiting plate links up with the upper end of advancing the cigarette chamber mutually, the middle part of limiting plate is supported with the rear side of assembly plate, the both sides part of limiting plate is arranged corresponding to the rear portion of first hem. The structure of above-mentioned limiting plate can adapt into the structure of cigarette chamber upper end to the assembly is convenient for.

Preferably, the first bending edge is provided with a second limiting opening extending forwards and backwards at two side parts corresponding to the limiting plate, and correspondingly, the upper edge of the limiting plate is provided with a second clamping piece capable of being clamped and limited with the second limiting opening. A second gap capable of clamping the front side edge of the second limiting opening is formed between the front end of the second card and the edge of the limiting plate, and the second card penetrates through the second limiting opening and moves forwards along with the limiting plate to enable the front side edge of the second limiting opening to be clamped in the second gap for limiting. During the assembly, make the second card align with the spacing mouth of second, upwards push away the limiting plate, pass the spacing mouth of second when the second card, push away the limiting plate forward again, it is spacing in the second gap to arrange the front side edge card of the spacing mouth of second in, at this moment, the preceding wall at limiting plate middle part offsets with the rear side of mounting plate.

Preferably, the first limit opening and the second limit opening extend forwards and backwards, and the widths of the first limit opening and the second limit opening gradually decrease from back to front. The structure is beneficial to improving the compactness and the stability of the whole assembly structure.

Preferably, the top edge of limiting plate both sides part is bent to one side level and is formed the second and bend the limit, and under the assembly completion state, the second is bent the limit and is pressed close to first and bend the limit and arrange, first connecting hole has been seted up on the first limit of bending, and is corresponding, set up the second connecting hole corresponding with first connecting hole on the second is bent the limit, the screw passes first connecting hole, the second connecting hole will the limiting plate locks on the fan dustcoat. Adopt this structure to lock limiting plate and fan dustcoat to improve overall installation structure's stability and reliability.

Preferably, the diameter of the first connecting hole is larger than that of the second connecting hole, and the outer diameter of the threaded column on the screw is gradually reduced from top to bottom. When the first connecting hole is consistent with the second connecting hole in aperture, if certain dislocation exists between the first connecting hole and the second connecting hole, the screw is difficult to drive into for connection, and by adopting the structure, the conical threaded column can continuously adjust the positions of the first connecting hole and the second connecting hole in the process of passing through the first connecting hole and the second connecting hole, and is gradually locked along with the penetration of the screw, so that the assembly is convenient.

In order to facilitate assembly, a third vertical plate positioned at the rear side of the lighting assembly is arranged on the assembly plate, and a socket for inserting a power line plug of the lighting assembly into the third vertical plate so as to limit the power line plug is arranged on the third vertical plate.

The utility model discloses in, follow the top edge of advancing the mouth is provided with the fender cigarette board that extends forward. The smoke baffle can block the rising oil smoke, and simultaneously forms a negative pressure area with the smoke inlet cavity, so that the blocked oil smoke is collected and then discharged, and the whole oil smoke absorption effect of the range hood is further improved.

Preferably, the smoke baffle is provided with a light-transmitting area through which light can pass. After setting up above-mentioned fender cigarette board, keep off the cigarette board and can block the lighting assembly's of its top light to a certain extent, and lead to the illuminating effect relatively poor, set up above-mentioned printing opacity region, just can make light see through the printing opacity regional downward irradiation to the assurance has good illuminating effect.

Preferably, the rear edge of the smoke baffle is detachably mounted on the shell. The rear edge of the smoke baffle plate can be rotatably connected to the shell. Namely, the smoke baffle of the utility model can be installed on the shell body and can be turned over, if the smoke baffle can be turned over, the smoke baffle is turned over when in use and closed when not in use so as to keep beauty.

Preferably, the light-transmitting area is provided with a silk-screen pattern, so that light can pass through the light-transmitting area in a light irradiation state and the light-transmitting area is displayed as a dark screen in a non-light irradiation state. By adopting the structure, the integral aesthetic property of the range hood can be improved, particularly for the structure with the turnover smoke baffle plate, light can pass through the structure when the smoke baffle plate is in an opened state, and a black dark screen is presented when the smoke baffle plate is in a closed state, so that the integral appearance of the front side surface of the range hood is more uniform and attractive.

The utility model discloses in, the bottom of installation cavity is installed and is can be with installation cavity bottom confined panel, and it has the confession to open on this panel the opening that lighting assembly's light emitting area exposes. The size of the opening can be set according to the size of the luminous surface of the lighting assembly, and the whole lighting assembly is hidden at the upper side of the panel and only the luminous surface of the lighting assembly is exposed, so that the lighting effect is not influenced, and the lighting assembly is relatively beautiful.

Compared with the prior art, the utility model has the advantages of: the back wall of the shell of the range hood of the utility model is mounted by wall hanging, because the smoke inlet cavity at the lower part of the shell extends vertically, the width of the smoke inlet cavity in the front and back direction can be made thinner, and the smoke inlet cavity can extend downwards to be sufficiently close to a cooker and a smoke generating source, so that the smoke can be rapidly sucked into the smoke inlet cavity to be discharged as soon as the smoke is generated, and the smoke suction effect is improved; the appearance of cooperation range hood, the illumination subassembly that sets up in the installation cavity bottom can realize straight following formula illumination, improves the illuminating effect, facilitates for the user.

Drawings

Fig. 1 is a schematic structural diagram of a range hood in an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic view of an assembly structure of the fan housing and the lighting assembly in embodiment 1 of the present invention;

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

FIG. 5 is an enlarged schematic view of portion B of FIG. 3;

FIG. 6 is an enlarged schematic view of a portion C of FIG. 3;

FIG. 7 is an exploded view of FIG. 3;

fig. 8 is an exploded view of the lighting assembly and the mounting plate according to embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a smoke barrier in embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1:

as shown in fig. 1 to 8, the range hood of the present embodiment includes a housing 1 and a fan system 2 disposed in the housing 1. The lower part of the shell 1 is provided with a vertically extending smoke inlet cavity 11, the front side wall of the lower part of the shell 1 is provided with a smoke inlet 111 communicated with the smoke inlet cavity 11, the upper part of the shell 1 is provided with a smoke collecting cavity 12 communicated with the smoke inlet cavity 11, the smoke collecting cavity 12 extends forwards to form a mounting cavity 13 for mounting the fan system 2, it should be noted that the mounting cavity 13 is used for mounting the fan system 2, but the mounting position of the fan system 2 is not completely limited in the mounting cavity 13, and because the smoke collecting cavity 12 and the mounting cavity 13 are integrated, when the fan system 2 is mounted, the part of the fan system 2 can be positioned in the smoke collecting cavity 12 according to requirements. The air inlet 21 of the fan system 2 may be arranged in advance or in the rear direction, as long as it is communicated with the smoke collecting cavity 12, and the air outlet of the fan system 2 is arranged upward. An oil collecting cup 4 with an upward opening is arranged at the lower edge of the shell 1, and the bottom of the smoke inlet cavity 11 is connected with the oil collecting cup 4. Because the smoke inlet cavity 11 at the lower part of the shell 1 vertically extends, the smoke inlet cavity 11 can be made thinner along the width in the front-back direction and can extend downwards to be sufficiently close to the cooker and a smoke generating source, so that the smoke can be quickly sucked into the smoke inlet cavity to be discharged upwards once being generated, and the smoke suction effect is improved.

In this embodiment, range hood's overall configuration makes installation cavity 13 bottom vacant, and advances the part of smoke chamber 11 and can not lead to the fact the bottom of installation cavity 13 to shelter from, and this embodiment has set up lighting assembly 5 in installation cavity 13 bottom, and this lighting assembly 5 can carry out straight following formula illumination, has improved the illuminating effect, facilitates for the user. A panel 16 that can close the bottom of the mounting chamber 13 is attached to the bottom of the mounting chamber 13, and an opening 161 through which the light emitting surface of the lighting unit 5 is exposed is formed in the panel 16. The size of the opening 161 can be set according to the size of the light emitting surface of the illumination module, and the entire illumination module 5 is hidden above the panel 16 so that only the light emitting surface is exposed, and the illumination effect is not affected and the appearance is beautiful.

Specifically, as shown in fig. 2 and 3, the upper portion of the housing 1 has a fan frame 14 for mounting the fan system 2 and a fan housing 15 covering the fan frame 14, and the lighting assembly 5 is detachably disposed at the bottom of the fan housing 15 through the assembling assembly 6. The assembly component 6 is including assembly plate 61 and limiting plate 62, and on the assembly plate 61 was located to lighting component 5, the lateral part edge of fan dustcoat 15 lower extreme was provided with the first limit of buckling 151 of inwards bending, opened the first spacing mouth 1511 that extends around on this first limit of buckling 151, and corresponding, the lateral part edge of assembly plate 61 was provided with can be with this first spacing mouthful 1511 spacing first card 611 of looks joint. A first gap 612 is formed between the front end of the first clamping piece 611 and the edge of the assembly plate 61, and the front edge of the first limit opening 1511 can be clamped in the first gap 612, and the first clamping piece 611 passes through the first limit opening 1511 and moves forward along with the assembly plate 61, so that the front edge of the first limit opening 1511 is clamped in the first limit opening 612 for limiting. During assembly, the first clamping piece 611 is aligned with the first limiting opening 1511, the assembly plate 61 is pushed upwards, and after the first clamping piece 611 passes through the first limiting opening 1511, the assembly plate 61 is pushed forwards until the front edge of the first limiting opening 1511 is clamped in the first gap 612 for limiting.

The panel 16 is disposed at the bottom of the fan housing 15 for the sake of appearance and prevention of oil smoke invasion, and the mounting plate 61 can be covered. As shown in fig. 7, the mounting plate 61 is provided with a mounting opening 613 disposed corresponding to the opening 161, the lighting assembly 5 is inserted into the mounting opening 613, and the mounting plate 61 is provided with an elastic piece 63 capable of pressing the lighting assembly 5 so that the bottom thereof abuts against the panel 16 at the outer edge of the opening 161. The edge of the fitting opening 613 extends upward to form a fitting edge 614 that can be wrapped around the edge of the lighting assembly 5. The assembling plate 61 is provided with a first vertical plate 615 and a second vertical plate 616 which are respectively positioned at two sides of the assembling opening 613, the first vertical plate 615 is provided with a first bayonet 6151, and correspondingly, the first end of the elastic sheet 63 is provided with a first clamping foot 631 which can be inserted into the first bayonet 6151; the second vertical plate 616 is provided with a second bayonet 6161, and correspondingly, the second end of the elastic sheet 63 is provided with a second clamping leg 632 which can be matched with the second bayonet 6161 for limiting. The second bayonet 6161 is arranged higher than the first bayonet 6151, the middle part of the elastic sheet 63 forms a pressing sheet 633 which can be pressed on the top of the lighting assembly 5, the edge of the pressing sheet 633 close to the first bayonet 6151 extends obliquely downwards to form a first connecting sheet 634 which can be connected with the first bayonet 6151, and the edge of the pressing sheet 633 close to the second bayonet 6161 extends obliquely upwards to form a second connecting sheet 635 which can be connected with the second bayonet 6161. This structure facilitates the mounting of the elastic piece 63 and improves the stability of the mounting of the lighting assembly 5. The mounting plate 61 is provided with a third vertical plate 617 at the rear side of the lighting assembly 5, and the third vertical plate 617 is provided with a socket 6171 for inserting the power plug 51 of the lighting assembly 5 to limit the position of the power plug.

The limiting plate 62 of the embodiment is disposed at the rear side of the bottom of the fan housing 15, and is used for keeping the mounting plate 61 and the fan housing 15 in a limiting state to prevent the mounting plate 61 from moving backwards. The limiting plate 62 is formed into a U-shaped structure with an opening arranged backwards, the limiting plate 62 vertically extends and is connected with the upper end of the smoke inlet cavity 11, the middle of the limiting plate 62 is abutted to the rear side of the assembling plate 61, and the two side parts of the limiting plate 62 are arranged at the rear part of the corresponding first bending edge 151. The first bending edge 151 is provided with second limiting holes 1512 extending back and forth at two side portions corresponding to the limiting plates 62, and correspondingly, the upper edge of the limiting plate 62 is provided with a second clamping piece 621 capable of clamping and limiting with the second limiting holes 1512. A second gap 622 capable of clamping the front side edge of the second limiting hole 1512 is formed between the front end of the second card 621 and the edge of the limiting plate 62, and the second card 621 passes through the second limiting hole 1512 and moves forward along with the limiting plate 62 to position the front side edge of the second limiting hole 1512 in the second gap 622. During the assembly, make second card 621 and the spacing mouthful 1512 of second align, upwards push away limiting plate 62, pass the spacing mouthful 1512 back of second when second card 621, push away limiting plate 62 forward again, it is spacing in second gap 622 until the leading edge card of the spacing mouthful 1512 of second, at this moment, the preceding wall at limiting plate 62 middle part offsets with the rear side of assembly plate 61. The first limiting port 1511 and the second limiting port 1512 extend forwards and backwards, and the widths of the first limiting port 1511 and the second limiting port 1512 are gradually reduced from back to front, so that the structure is favorable for improving the compactness and stability of the whole assembly structure.

In this embodiment, the top edges of the two side portions of the limiting plate 62 are horizontally bent towards one side to form a second bending edge 623, the second bending edge 623 is arranged close to the first bending edge 151 in the assembled state, the first connecting hole 1513 is formed in the first bending edge 151, correspondingly, the second connecting hole 6231 corresponding to the first connecting hole 1513 is formed in the second bending edge 623, and the limiting plate 62 is locked on the fan housing 15 by the screw 100 passing through the first connecting hole 1513 and the second connecting hole 6231. The diameter of the first coupling hole 1513 is larger than that of the second coupling hole 6231, and the outer diameter of the threaded post of the screw 100 is gradually reduced from top to bottom. When the first connection hole 1513 and the second connection hole 6231 have the same diameter, if there is a certain dislocation between the first connection hole 1513 and the second connection hole 6231, it is difficult to drive the screw 100 into the connection, and with the above structure, the conical screw thread column can continuously adjust the positions of the first connection hole 1513 and the second connection hole 6231 while passing through the two holes, and gradually lock with the penetration of the screw 100, which is convenient for assembly.

Example 2:

this example differs from example 1 in that: as shown in fig. 1 and 9, the present embodiment is provided with a smoke barrier 7 extending forward at the upper edge of the smoke inlet 111. The smoke baffle 7 can be installed on the shell 1 and can be fixed or can be overturned, and if the smoke baffle is overturned, the smoke baffle is opened when in use and closed when not in use so as to keep beautiful appearance. When the smoke barrier 7 is not moved, the rear edge thereof may be detachably mounted on the housing 1. When the smoke barrier 7 can be turned over, the rear edge of the smoke barrier 7 can be rotatably connected to the housing 1 through a four-bar driving mechanism, and the connection mode is the prior art and is not described herein. The smoke baffle 7 can block the rising oil smoke, and simultaneously forms a negative pressure area with the smoke inlet cavity 11, so that the blocked oil smoke is collected and then discharged, and the whole oil smoke absorption effect of the range hood is further improved.

The smoke barrier 7 is provided with a light transmitting region 71 through which light can pass. After the smoke baffle 7 is arranged, the smoke baffle 7 can block the light of the lighting assembly 5 above the smoke baffle 7 to a certain extent, so that the lighting effect is poor, and the light transmission area 71 is arranged, so that the light can penetrate through the light transmission area 71 to irradiate downwards, and the good lighting effect is ensured.

The light-transmitting area 71 of the present embodiment is provided with a silk-screen pattern 711, so that the light-transmitting area 71 can allow light to pass therethrough in a light-irradiated state and can display a dark screen in a non-light-irradiated state. By adopting the structure, the integral aesthetic property of the range hood can be improved, particularly for the structure that the smoke baffle plate 7 can be turned over, light can pass through the structure when the smoke baffle plate 7 is turned over, and black dark screen is presented when the smoke baffle plate 7 is closed, so that the integral appearance of the front side surface of the range hood is more uniform and beautiful.

Claims

1. The utility model provides a range hood, includes casing (1) and locates fan system (2) in this casing (1), its characterized in that: casing (1) lower part has vertical extension's smoke inlet chamber (11), it has into mouth (111) that is linked together with this smoke inlet chamber (11) to open on preceding lateral wall and/or the diapire of casing (1) lower part, casing (1) upper portion has collection smoke chamber (12) that are linked together with smoke inlet chamber (11), collection smoke chamber (12) extend forward and form installation cavity (13) that are used for installing fan system (2), air intake (21) and collection smoke chamber (12) of fan system (2) are linked together, the bottom of installation cavity (13) is provided with lighting components (5).

2. The range hood of claim 1, wherein: the fan frame (14) used for installing the fan system (2) and the fan outer cover (15) covering the fan frame (14) are arranged on the upper portion of the shell (1), and the lighting assembly (5) is arranged at the bottom of the fan outer cover (15).

3. The range hood of claim 2, wherein: the illumination assembly (5) is detachably arranged on the fan outer cover (15) through the assembly (6).

4. The range hood of claim 3, wherein: assembly component (6) are including assembly plate (61) at least, on this assembly plate (61) was located in lighting components (5), fan dustcoat (15) lower extreme's lateral part edge was provided with first bending edge (151) of inwards bending, and it has first spacing mouthful (1511) of extending around to open on this first bending edge (151), and is corresponding, the lateral part edge of assembly plate (61) is provided with can with this first spacing mouthful (1511) looks joint spacing first card (611).

5. The range hood of claim 4, wherein: a first gap (612) capable of clamping the front edge of the first limiting opening (1511) is formed between the front end of the first clamping piece (611) and the edge of the assembly plate (61), and the first clamping piece (611) penetrates through the first limiting opening (1511) and moves forwards along with the assembly plate (61) to enable the front edge of the first limiting opening (1511) to be clamped in the first gap (612) for limiting.

6. The range hood of claim 4, wherein: the bottom of fan dustcoat (15) is installed and is can be with panel (16) that assembly plate (61) cover, and it has confession to open on this panel (16) the opening (161) that the light emitting area of lighting components (5) exposes.

7. The range hood of claim 6, wherein: the assembling plate (61) is provided with an assembling opening (613) arranged corresponding to the opening (161), the lighting assembly (5) is inserted into the assembling opening (613), and the assembling plate (61) is provided with an elastic sheet (63) which can be pressed on the lighting assembly (5) to enable the bottom of the elastic sheet to be abutted against the panel (16) at the outer edge of the opening (161).

8. The range hood of claim 7, wherein: the edge of the assembling opening (613) extends upwards to form an assembling edge (614) capable of covering the edge of the lighting assembly (5).

9. The range hood of claim 7, wherein: the assembling plate (61) is provided with a first vertical plate (615) and a second vertical plate (616) which are respectively positioned at two sides of the assembling opening (613), the first vertical plate (615) is provided with a first bayonet (6151), and correspondingly, the first end of the elastic sheet (63) is provided with a first clamping foot (631) which can be inserted into the first bayonet (6151); the second vertical plate (616) is provided with a second bayonet (6161), and correspondingly, the second end of the elastic sheet (63) is provided with a second clamping pin (632) which can be matched with and limited by the second bayonet (6161).

10. The range hood of claim 9, wherein: the second bayonet (6161) is higher than the first bayonet (6151) and arranged, a pressing sheet (633) capable of being pressed on the top of the lighting assembly (5) is formed in the middle of the elastic sheet (63), a first connecting sheet (634) capable of being connected with the first bayonet (6151) extends obliquely downwards from the edge of the pressing sheet (633) close to the first bayonet (6151), and a second connecting sheet (635) capable of being connected with the second bayonet (6161) extends obliquely upwards from the edge of the pressing sheet (633) close to the second bayonet (6161).

11. The range hood according to any one of claims 4 to 10, wherein: the rear side of fan dustcoat (15) bottom is provided with and enables assembly plate (61) and fan dustcoat (15) to keep spacing state and prevent limiting plate (62) that assembly plate (61) from moving backward.

12. The range hood of claim 11, wherein: limiting plate (62) take shape for the opening towards the U-shaped structure of arranging backward, limiting plate (62) vertical extension links up with the upper end of advancing cigarette chamber (11) mutually, the middle part of limiting plate (62) offsets with the rear side of mounting plate (61), the rear portion that the both sides part of limiting plate (62) corresponds first hem (151) is arranged.

13. The range hood of claim 12, wherein: and a second limiting opening (1512) extending forwards and backwards is formed in the two side parts of the corresponding limiting plate (62) on the first bending edge (151), and correspondingly, a second clamping piece (621) capable of being clamped and limited with the second limiting opening (1512) is arranged at the upper edge of the limiting plate (62).

14. The range hood of claim 13, wherein: a second gap (622) capable of clamping the front side edge of the second limiting port (1512) is formed between the front end of the second card (621) and the edge of the limiting plate (62), and the second card (621) penetrates through the second limiting port (1512) and moves forwards along with the limiting plate (62) to enable the front side edge of the second limiting port (1512) to be clamped in the second gap (622) for limiting.

15. The range hood of claim 13, wherein: the first limiting opening (1511) and the second limiting opening (1512) extend forwards and backwards, and the widths of the first limiting opening (1511) and the second limiting opening (1512) gradually decrease from back to front.

16. The range hood of claim 12, wherein: the top edge of limiting plate (62) both sides part is bent to one side level and is formed second limit (623) of bending, and under the assembly completion state, first limit (151) of bending is pressed close to in second limit (623) of bending, first connecting hole (1513) have been seted up on first limit (151) of bending, correspond, set up on second limit (623) of bending with first connecting hole (1513) corresponding second connecting hole (6231), screw (100) pass first connecting hole (1513), second connecting hole (6231) will limiting plate (62) lock is on fan dustcoat (15).

17. The range hood of claim 16, wherein: the diameter of the first connecting hole (1513) is larger than that of the second connecting hole (6231), and the outer diameter of the threaded column on the screw (100) is gradually reduced from top to bottom.

18. The range hood according to any one of claims 4 to 10, wherein: the assembling plate (61) is provided with a third vertical plate (617) positioned at the rear side of the lighting assembly (5), and the third vertical plate (617) is provided with a socket (6171) for inserting a power line plug (51) of the lighting assembly (5) so as to limit the power line plug.

19. The range hood according to any one of claims 1 to 10, wherein: a smoke baffle plate (7) extending forwards is arranged along the upper edge of the smoke inlet (111).

20. The range hood of claim 19, wherein: the smoke baffle (7) is provided with a light transmission area (71) through which light can penetrate.

21. The range hood of claim 20, wherein: the light-transmitting area (71) is provided with a silk-screen pattern (711), so that the light-transmitting area (71) can be penetrated by light in a light irradiation state and can be displayed as a dark screen in a non-light irradiation state.

22. The range hood of claim 19, wherein: the rear edge of the smoke baffle plate (7) is detachably arranged on the shell (1).

23. The range hood of claim 19, wherein: the rear edge of the smoke baffle plate (7) can be rotatably connected to the shell (1).

24. The range hood according to any one of claims 1 to 5, wherein: the bottom of the installation cavity (13) is provided with a panel (16) capable of sealing the bottom of the installation cavity (13), and the panel (16) is provided with an opening (161) for exposing the light emitting surface of the lighting assembly (5).