CN220958606U

CN220958606U - Fume exhaust fan

Info

Publication number: CN220958606U
Application number: CN202322613431.2U
Authority: CN
Inventors: 徐敬龙
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-05-14
Anticipated expiration: 2033-09-25

Abstract

The utility model relates to a range hood, which comprises a shell and a fan system arranged in the shell, wherein the fan system comprises a volute, a first air inlet is formed in a front cover plate of the volute, the shell comprises a front panel, an opening opposite to the first air inlet of the volute is formed in the front panel, a guide part protruding forwards is further arranged at the peripheral edge of the opening of the front panel, the guide part and a main body of the front panel are integrally designed, and a first oil screen is further arranged in the guide part. The advantages are that: the installation structure between the fan system and the shell is simplified, the installation process is convenient and easy to operate, the installation cost is reduced, and meanwhile, the guide part is integrally arranged on the front panel, so that an installation gap cannot exist, and the cleaning is convenient for a user.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a range hood.

Background

A range hood is a kitchen appliance that purifies the kitchen environment. The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges oil smoke through a centrifugal fan arranged in the range hood and filters part of grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, and oil smoke below the range hood is sucked into the fan and is collected by the volute after being accelerated by the fan to be guided to be discharged out of the room.

The range hood generally comprises a shell and a fan system arranged in the shell, and the range hood comprises a box body component and a fan component, wherein the fan component comprises a volute, the volute is a shell structural member with a gradually enlarged flow cross section area to one side, and an air inlet ring is arranged at an air inlet of the volute.

However, the existing range hood has a certain disadvantage, firstly, the fan assembly and the front panel of the casing are connected through an independent air inlet ring, or the air inlet ring is connected to the volute of the fan assembly, then an oil screen is installed on the air inlet ring, and holes are formed in corresponding positions on the front panel of the casing. Secondly, the existing range hood only has one air inlet at the middle part, and the common kitchen range is a left-right double-hole kitchen range, so that the air inlet is far away from the center of the kitchen range and the center of a pot, and the oil smoke has the risk of escaping from two sides.

Therefore, the existing range hood needs to be further improved.

Disclosure of utility model

The first technical problem to be solved by the utility model is to provide the range hood which can effectively simplify the installation structure between the fan system and the shell and reduce the production cost aiming at the current state of the art.

The second technical problem to be solved by the utility model is to provide the range hood with good fume suction effect and difficult fume escape aiming at the current state of the art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the utility model provides a range hood, includes the casing and locates the fan system in the casing, fan system includes the spiral case, has seted up first air intake on the front shroud of this spiral case, the casing includes the front panel, have on this front panel with the opening that the first air intake of spiral case is relative, the open-ended periphery border department of front panel still has the water conservancy diversion portion of forward protrusion, this water conservancy diversion portion with the main part of front panel designs as an organic whole, still installs first oil net in this water conservancy diversion portion.

The guide part may be formed by the outer periphery of the opening of the front panel changing along its thickness, or may be a profiled structure formed by bending, preferably, for convenience of processing, the guide part is a folded structure extending forward and then bending backward along the inward direction of the opening of the front panel.

In order to ensure the air inlet quantity and improve the oil filtering effect, the first oil net is an arc oil net with the middle part protruding forwards.

In order to realize the firmness of the installation between the volute and the front panel, the edge of the first air inlet of the volute is connected with the part, which is positioned outside the flow guiding part, of the front panel.

The utility model solves the second technical problem by adopting the technical proposal that: the front panel is provided with a left air inlet area and a right air inlet area corresponding to the areas positioned on the left side and the right side of the opening, the left air inlet area is provided with a second oil net, and the right air inlet area is provided with a third oil net.

In order to simplify the installation process, reduce the cost and facilitate the cleaning, the second oil screen and the third oil screen are integrally designed with the main body of the front panel.

In order to improve the fume exhausting effect, the front panel is provided with a fume collecting area with a middle part recessed backwards, and the opening, the left air inlet area and the right air inlet area are all arranged at the fume collecting area.

In order to improve the oil fume suction effect, the left air inlet area and the right air inlet area are arranged in an extending mode along the up-down direction.

In order to timely suck and discharge oil smoke when the oil smoke starts rising, the shell further comprises a bottom wall, the front area of the bottom wall is gradually inclined downwards from front to back to form a guide wall, a lower air inlet area is arranged on the guide wall, and a fourth oil screen is arranged at the lower air inlet area.

In order to be matched with left and right cooking tops on the cooking bench, two lower air inlet areas on the guide wall are arranged at intervals in the left and right directions, and two fourth oil nets are correspondingly arranged.

As an improvement, the oil cup is also provided with an elongated oil cup, and the oil cup is arranged at the rear area of the bottom wall of the shell and extends along the left-right direction.

In order to improve the fume suction effect of the lower air inlet area, the lower air inlet area is also provided with a rectifying plate positioned at the front part of the fourth oil screen.

The oil cup is mounted in the rear area of the bottom wall of the shell, extends and is arranged along the left-right direction, the rear side edge of the rectifying plate is located above the oil cup, and the vertical orthographic projection is located in the oil cup. The rectifying plate not only can play a role in rectifying, but also can guide oil into the oil cup to avoid dripping on the cooking bench.

Compared with the prior art, the utility model has the advantages that: the air guide part arranged at the opening part of the front panel opposite to the first air inlet of the fan system is designed integrally with the main body of the front panel, so that the installation structure between the fan system and the housing is simplified, the installation process is convenient and easy to operate, the installation cost can be reduced, and meanwhile, the air guide part is integrally arranged on the front panel, so that an installation gap does not exist, and a user can conveniently clean the air guide part. In the preferred scheme, the left air inlet area, the right air inlet area and the lower air inlet area at the bottom of the shell are arranged on the left side and the right side of the opening of the front panel, so that a negative pressure area with a large range can be formed, and the range hood is beneficial to improving the fume absorbing effect. In particular, the left air inlet area, the right air inlet area and the lower air inlet area at the bottom of the shell are arranged on the left side and the right side of the opening of the front panel, so that air can be introduced from the rear cover plate of the volute, the air inlet area of the volute is improved, the air inlet efficiency of the whole machine is improved, and the performance of the whole machine is improved.

Drawings

Fig. 1 is a schematic perspective view of a range hood according to an embodiment of the present utility model;

Fig. 2 is a cross-sectional view (axial direction of the over-blower) of the range hood according to the embodiment of the present utility model taken along the front-rear direction;

Fig. 3 is a cross-sectional view of the range hood according to the embodiment of the present utility model (through the lower air inlet area of the front panel) taken along the front-rear direction;

Fig. 4 is a schematic perspective view of a smoke exhaust ventilator according to an embodiment of the present utility model, in which a smoke baffle is omitted;

Fig. 5 is a schematic perspective view of a front panel of a chassis according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Fig. 1-5 show a preferred embodiment of the present utility model, the range hood comprises a housing 10 and a fan system arranged in the housing 10, the fan system generally adopts a centrifugal fan and comprises a volute 31, an impeller 32 and a motor 33, the impeller 32 is arranged in the volute 31 and is driven to rotate by the driving motor 33, so that negative pressure for exhausting the oil smoke is provided. The axial direction of the centrifugal fan extends along the front-back direction, a first air inlet 311 is formed in the front cover plate of the volute 31 of the centrifugal fan, and a second air inlet 312 is formed in the rear cover plate.

The cabinet 10 includes a left side plate 101, a right side plate 102, a rear side plate 103, a front panel 11, and a bottom wall. The left side plate 101 and the right side plate 102 are opposite in the left-right direction, the front panel 11 and the rear side plate 103 are opposite in the front-rear direction, and the front-rear dimension of the left side plate 101 and the right side plate 102 is smaller than the left-right dimension of the front panel 11 and the rear side wall, so that the casing 10 is a casing structure with a relatively small front-rear depth as a whole. The front panel 11 is arranged to extend substantially vertically and is recessed rearwardly in the middle to form a smoke gathering region 114. The middle part of the smoke gathering area 114 is provided with an opening 110, and a first oil screen 131 is arranged at the opening 110. The front panel 11 is provided with a left air inlet area 112 and a right air inlet area 113 corresponding to the left side and the right side of the opening 110, the left air inlet area 112 is provided with a second oil net 132, and the right air inlet area 113 is provided with a third oil net 133. Specifically, in order to improve the fume absorbing effect, the left air inlet area 112 and the right air inlet area 113 are respectively arranged in a strip-shaped area extending along the up-down direction, and then, the second oil net 132 and the third oil net 133 are respectively in a honeycomb net structure and are integrally designed with the main body of the front panel 11, so that a separate oil net mechanism is not required to be installed, and the front panel 11 is also convenient for a user to clean.

The front panel 11 of the casing 10 is further provided with a smoke baffle 40, and the smoke baffle 40 is rotatably connected to the front panel 11 of the casing 10 by a rotation shaft extending from left to right under the driving of the movement mechanism, and in the closed state of the smoke baffle 40, the smoke baffle can be covered on the front panel 11, and the first oil screen 131, the left air inlet area 112 and the right air inlet area 113 are also shielded.

The front area of the bottom wall of the casing 10 gradually inclines downwards from front to back to form the guide wall 12, the guide wall 12 is provided with lower air inlet areas 120, in order to be matched with two cooking ranges on the cooking bench, the lower air inlet areas 120 on the guide wall 12 are provided with two lower air inlet areas 120 which are arranged at intervals in the left-right direction, and the positions of the two lower air inlet areas 120 are respectively provided with a fourth oil screen 134, wherein the fourth oil screen 134 comprises strip-shaped mesh holes which are sequentially arranged at intervals in the left-right direction. The two lower air inlet areas 120 on the bottom wall of the casing 10 can timely suck and discharge oil smoke when the oil smoke starts rising, so as to ensure the oil smoke sucking effect. In addition, the lower air inlet area 120 of the embodiment is further provided with a rectifying plate 14 located in front of the fourth oil screen 134, the rectifying plate 14 is spaced from the wall plate where the lower air inlet area 120 is located by a certain distance, and the inclination direction of the rectifying plate is consistent with that of the guide wall 12, so that rising oil smoke can be guided to the periphery, that is, the oil smoke is led to climb along the wall of the rectifying plate 14, the oil smoke is prevented from escaping, and the oil smoke absorbing effect of the lower air inlet area 120 is improved.

Referring to fig. 3, the bottom of the cabinet of the present embodiment is further provided with an oil cup 20, specifically, the oil cup 20 is in an elongated shape, specifically, is provided at a rear region of the bottom wall of the cabinet 10, and is arranged to extend in the left-right direction. The rear edge of the rectifying plate 14 is located above the oil cup 20, and the orthographic projection of the rear edge of the rectifying plate 14 in the vertical direction is located in the oil cup 20, so that the rectifying plate 14 can guide oil into the oil cup 20, and the oil can be prevented from dripping onto a cooking bench.

The guide part 111 arranged at the opening 110 opposite to the first air inlet 311 of the fan system on the front panel 11 of the casing 10 is designed integrally with the main body of the front panel 11, so that the installation structure between the fan system and the casing 10 is simplified, the installation process is convenient and easy to operate, the installation cost can be reduced, and meanwhile, the guide part 111 is arranged on the front panel 11 integrally, so that an installation gap does not exist, and the cleaning is convenient for a user. In a preferred embodiment, the left and right sides of the opening 110 of the front panel 11 are provided with left and right air inlet areas 112 and 113 and a lower air inlet area 120 at the bottom of the casing 10, so that a wide negative pressure area can be formed, which is helpful for improving the oil smoke absorbing effect. In particular, the left air inlet area 112, the right air inlet area 113 and the lower air inlet area 120 at the bottom of the casing 10 are arranged at the left side and the right side of the opening 110 of the front panel 11, so that air can be introduced from the rear cover plate of the volute 31, the air inlet area of the volute 31 is improved, the air inlet efficiency of the whole machine is improved, and the performance of the whole machine is improved.

When the range hood works, in this embodiment, the oil smoke entering from the first oil screen 131 enters from the first air inlet 311 on the front side of the volute 31, the oil smoke entering from the left air inlet region 112, the right air inlet region 113 and the two lower air inlet regions 120 on the lower side can enter from the second air inlet 312 on the back side of the volute 31, so that 5 air inlet regions are formed in total, 5 negative pressure regions are formed, and the left air inlet region 112, the right air inlet region 113 and the two lower air inlet regions 120 on the lower side are respectively distributed on the left side, the right side and the lower side of the range hood, so that the oil smoke can be effectively prevented from escaping from the left side, the right side and the lower side, and the oil smoke absorbing effect is improved.

Claims

1. The utility model provides a range hood, includes casing (10) and locates the fan system in casing (10), fan system includes spiral case (31), has seted up first air intake (311) on the preceding apron of this spiral case (31), casing (10) include front panel (11), have on this front panel (11) with opening (110) that first air intake (311) of spiral case (31) are relative, its characterized in that: the periphery edge of the opening (110) of the front panel (11) is also provided with a flow guiding part (111) protruding forwards, the flow guiding part (111) and the main body of the front panel (11) are integrally designed, and a first oil screen (131) is also arranged in the flow guiding part (111).

2. The range hood of claim 1, wherein: the guide part (111) is a folded structure extending forwards along the inward direction of the opening (110) of the front panel (11) and then bending backwards.

3. The range hood of claim 1, wherein: the first oil screen (131) is an arc-shaped oil screen with the middle part protruding forwards.

4. The range hood of claim 1, wherein: the edge of the first air inlet (311) of the volute (31) is connected with the part of the front panel (11) which is positioned outside the flow guiding part (111).

5. The range hood according to any one of claims 1 to 4, wherein: the front panel (11) is provided with a left air inlet area (112) and a right air inlet area (113) corresponding to the areas positioned on the left side and the right side of the opening (110), the left air inlet area (112) is provided with a second oil screen (132), and the right air inlet area (113) is provided with a third oil screen (133).

6. The range hood of claim 5, wherein: the second oil screen (132) and the third oil screen (133) are integrally designed with the main body of the front panel (11).

7. The range hood of claim 5, wherein: the front panel (11) is provided with a smoke gathering area (114) formed by the middle part of the front panel being recessed backwards, and the opening (110), the left air inlet area (112) and the right air inlet area (113) are all arranged at the smoke gathering area (114).

8. The range hood of claim 5, wherein: the left air inlet area (112) and the right air inlet area (113) are arranged in an extending mode along the up-down direction.

9. The range hood of claim 5, wherein: the casing further comprises a bottom wall, the front area of the bottom wall gradually inclines downwards from front to back to form a guide wall (12), a lower air inlet area (120) is arranged on the guide wall (12), and a fourth oil screen (134) is arranged at the lower air inlet area (120).

10. The range hood of claim 9, wherein: the lower air inlet areas (120) on the guide wall (12) are two, the two lower air inlet areas (120) are arranged at intervals in the left-right direction, and the fourth oil net (134) is correspondingly two.

11. The range hood of claim 9, wherein: the oil cup (20) is arranged at the rear area of the bottom wall of the shell, and extends along the left-right direction.

12. The range hood of claim 9, wherein: and the lower air inlet area (120) is also provided with a rectifying plate (14) positioned at the front part of the fourth oil screen (134).

13. The range hood of claim 12, wherein: the oil cup is characterized by further comprising an elongated oil cup (20), wherein the oil cup (20) is installed in the rear area of the bottom wall of the shell and extends in the left-right direction, the rear side edge of the rectifying plate (14) is located above the oil cup (20), and the orthographic projection in the vertical direction is located in the oil cup (20).