CN218495041U

CN218495041U - Fume exhaust fan

Info

Publication number: CN218495041U
Application number: CN202221436052.XU
Authority: CN
Inventors: 余旭锋; 施旭娜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-02-17
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a range hood, including fan frame and the fan system of setting in the fan frame, its characterized in that: the fan frame comprises a frame body structure, the frame body structure comprises a first frame body and a second frame body, the first frame body and the second frame body are arranged in a front-back mode and can move relatively in the front-back direction so as to change the depth of the fan frame, or the first frame body and the second frame body are arranged in a left-right mode and can move relatively in the left-right direction so as to change the width of the fan frame; the axis of the fan system extends laterally and is rotatable about a vertically extending axis to match the size of the fan frame. Compared with the prior art, the utility model has the advantages of: through setting up rotatable fan system, can be convenient for carry out the switching-over adjustment of correspondence based on different wall cabinet degree of depth or width when the installation of registering one's residence, improve the suitability with the wall cabinet.

Description

Fume exhaust fan

Technical Field

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

Background

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

The kitchen area of a Chinese family is generally 4-10 square, a hanging cabinet is usually installed on the basis of area limitation, the depth size range of the hanging cabinet is 300-400 mm, the depth of a fan frame of the range hood is limited, the depth of the fan frame directly limits the thickness or the width of a fan, and the performance of the range hood is limited. Similarly, the width dimension of the hanging cabinet ranges from 300mm to 400mm, which can limit the width of the fan frame of the range hood.

Based on wall cabinet size restriction, there are two kinds of fans to put the mode in limited space in the existing market:

one is horizontal, that is, the front and the back of the fan system are supplied with air, which can effectively increase the width of the fan and adapt to the hanging cabinet with a shallower size, and can improve the performance of the fan by increasing the width of the fan, including the maximum air quantity and the maximum air pressure. The range hood disclosed in the applicant's chinese patent application No. 201921440435.2 includes a housing and a fan system disposed in the housing, wherein the fan system is a dual air inlet fan system, a primary air inlet of the fan system is disposed forward, and a secondary air inlet of the fan system is disposed rearward.

This kind of arrangement can make fan air intake straight face user, causes the straight face user of sound transmission, leads to the user to use the moment noise. In addition, the width of the fan system is limited due to the wall cabinet, and the fan system is often adapted to a wall cabinet with a wider size.

The other type is vertical, namely air enters from left to right of the fan system, so that the air inlet of the fan faces a user, and the noise of the user at the moment of use can be effectively reduced. The air box structure disclosed in the Chinese patent with the application number of 201811014418.2 comprises a box body and an air inlet assembly, wherein the air inlet assembly is vertically arranged inside the box body, so that the air inlet is changed from traditional front and back air inlet into left and right air inlet, and the two air inlets correspond to two furnace ends of a stove.

According to the arrangement mode, the width of the fan system is limited due to the hanging cabinet, the fan system is often adapted to the hanging cabinet with a deeper size, the difficulty of lifting the fan system is high through the traditional technology, and the air volume and the air pressure are often inferior to those of a horizontal range hood.

At present, a fan frame and a fan system are fixed in two forms of a transverse fan and a longitudinal fan, and even if the fan frame and the fan system are adjusted, the angle adjustment in a certain direction can be realized, and the fan frame and the fan system cannot be matched with a hanging cabinet; in addition, the air inlet flow channel is not designed in a matching mode according to the corresponding fan layout, so that vortex is easily generated in the air inlet flow channel, the air inlet area is reduced, and the performance of the range hood is weakened. For this reason, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood, can carry out the adjustment of switching-over correspondingly based on the wall cabinet size of difference, improve the suitability with the wall cabinet.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes fan frame and the fan system of setting in the fan frame, its characterized in that:

the fan frame comprises a frame body structure, the frame body structure comprises a first frame body and a second frame body, the first frame body and the second frame body are arranged in a front-back mode and can move relatively in the front-back direction, so that the depth of the fan frame is changed, or the first frame body and the second frame body are arranged in a left-right mode and can move relatively in the left-right direction, so that the width of the fan frame is changed;

the axis of the fan system extends laterally and is rotatable about a vertically extending axis to match the size of the fan frame.

In order to facilitate the shape adaptation of an air outlet plate component of the fan rack and a rotating fan system and avoid the pressure relief of the fan rack, the fan rack further comprises an air outlet plate component arranged at the upper end part of the rack body structure, the air outlet plate component comprises a first air outlet plate fixed with the first rack body and a second air outlet plate fixed with the fan system and linked, the first air outlet plate is provided with a first air outlet, the second air outlet plate is provided with a second air outlet, when the second air outlet plate rotates to different states needing to be kept, the second air outlets are all corresponding to the first air outlet, and the second air outlet is corresponding to the air outlet of the fan system; the air outlet plate assembly further comprises a movable plate for filling a gap except the second air outlet, and the gap is an opening formed at the upper end of the frame structure and used for communicating fluid in the fan frame and above the fan frame.

According to the utility model discloses an aspect, the fly leaf is for filling the plate of breach department after fan system changes the state.

According to the utility model discloses a further aspect, the fly leaf is the axis pivoted plate that can extend around vertical direction with first air outlet board, the upper and lower superpose of second air outlet board.

The upper end of the frame structure is provided with a baffle which is positioned at the front end of the frame structure and is vertically superposed with the air outlet plate component.

The range hood further comprises a first movement mechanism arranged on the first air outlet plate, and the first movement mechanism drives the second air outlet plate and the fan system to rotate in a fixed axis mode.

According to one aspect of the utility model, in order to form the fan frame with adjustable depth, the first frame body comprises a rear cover plate, a first side plate and a second side plate, wherein the first side plate extends forwards from the left end part of the rear cover plate, and the second side plate extends forwards from the right end part of the rear cover plate; the second support body includes first regulating plate, second regulating plate and protecgulum, first regulating plate and first curb plate syntropy extend and at least part is located the front side of first curb plate, first curb plate and first regulating plate remain at least part overlap in the front-back direction all the time, second regulating plate and second curb plate syntropy extend and at least part is located the front side of second curb plate, second curb plate and second regulating plate remain at least part overlap in the front-back direction all the time, the protecgulum lid is established between the preceding tip of first regulating plate and second regulating plate.

In order to facilitate the adjustment of the frame body structure of the driving fan frame, the front end part of the first frame body is inserted into the rear end part of the second frame body; the range hood further comprises a second motion mechanism used for driving the first support body and the second support body to move relatively, the second motion mechanism comprises a first driving mechanism, the first driving mechanism is a linear driving module, and the first driving mechanism is in transmission connection with the first support body.

In order to facilitate the relative motion of the first support body and the second support body, the second motion mechanism further comprises a transmission rod and a first slide rail assembly, the transmission rod is arranged at the output end of the first driving mechanism, the transmission rod extends in the left-right direction, the first slide rail assembly is provided with two sets, the first slide rail assembly of each set comprises a first slide rail and a second slide rail in sliding fit, the first slide rail is respectively fixed on one side of the first side plate and the second side plate in the direction facing the wind rack, the second slide rail is respectively fixed on one side of the first adjusting plate and the second adjusting plate in the direction facing the wind rack, and the left end and the right end of the transmission rod are respectively connected with the first slide rails of the corresponding positions.

According to another aspect of the present invention, in order to form a blower frame with adjustable left and right width dimensions, the frame body structure includes a rear cover plate, a first side plate, a second side plate, and a front cover plate arranged at the front side of the rear cover plate at intervals, the first side plate is located between the left sides of the rear cover plate and the front cover plate, the second side plate is located between the right sides of the rear cover plate and the front cover plate, and the blower frame further includes an air outlet plate assembly arranged at the upper end of the frame body structure; the upper end of the first side plate is bent towards the direction of the second side plate to form a first upper bent part, the front end and the rear end of the first side plate are bent towards the direction of the second side plate to form a first side bent part, the upper end of the second side plate is bent towards the direction of the first side plate to form a second upper bent part, the front end and the rear end of the second side plate are bent towards the direction of the first side plate to form a second side bent part, the first side plate and the bent parts thereof form a first frame body, the second side plate and the bent parts thereof form a second frame body, each upper bent part can be hidden or exposed out of the air outlet plate assembly, each side bent part at the front end can be hidden or exposed out of the front cover plate, and each side bent part at the rear end can be hidden or exposed out of the rear cover plate.

In order to facilitate the adjustment of the frame body structure of the driving fan frame, the range hood further comprises a fifth movement mechanism for driving the first side plate and the second side plate to be linked, so that the first side plate and the second side plate move left and right in opposite directions.

Preferably, in order to drive the first frame body and the second frame body to move conveniently, the fifth motion mechanism comprises a second drive mechanism, a first connecting rod, a second connecting rod and a second slide rail assembly, the second drive mechanism is a linear drive module, the first connecting rod and the second connecting rod are respectively provided with two connecting rods, the two second connecting rods are arranged in parallel at intervals left and right, and each second connecting rod extends along the front-back direction; the front end and the rear end of each second connecting rod are respectively connected with a second sliding rail assembly, the front cover plate and the first side plate are connected in a sliding mode through the second sliding rail assembly on the left side of the front end, the front cover plate and the second side plate are connected in a sliding mode through the second sliding rail assembly on the right side of the front end, the rear cover plate and the first side plate are connected in a sliding mode through the second sliding rail assembly on the left side of the rear end, and the rear cover plate and the second side plate are connected in a sliding mode through the second sliding rail assembly on the right side of the rear end.

In order to facilitate the improvement of the effective area of the flow channel and the smooth flow channel matched with the fan system, a guide plate is further arranged below the fan system, the whole guide plate is in a downward convex shape, and the guide plate rotates around the axis extending in the vertical direction, so that oil smoke is guided to the air inlet of the fan system.

In order to drive the guide plate to rotate, an air inlet assembly is arranged below the fan frame, and the guide plate is arranged in the air inlet assembly; the range hood further comprises a third movement mechanism for driving the guide plate to rotate around the axis extending in the vertical direction, and the third movement mechanism is fixedly arranged in the air inlet assembly through a support.

Compared with the prior art, the utility model has the advantages of: by arranging the rotatable fan system, corresponding reversing adjustment can be conveniently carried out based on different depths or widths of the hanging cabinets during home installation, and the adaptability of the hanging cabinets is improved; through the arrangement of the movable plate of the air outlet plate assembly, the pressure relief after the adjustment of the fan frame can be avoided; through the arrangement of the guide plate, the effective area of the flow channel and the smooth flow channel matched with the fan system can be improved.

Drawings

Fig. 1 is a schematic view of a range hood according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view (with a fan arranged horizontally) of a range hood according to a first embodiment of the present invention;

fig. 3 is an exploded schematic view of the hidden air intake assembly of the range hood according to the first embodiment of the present invention;

fig. 4 is an exploded schematic view of an air outlet plate assembly and a moving mechanism thereof of a range hood according to a first embodiment of the present invention;

fig. 5 is an exploded schematic view of the hidden front cover plate of the fan frame of the range hood according to the first embodiment of the present invention;

FIG. 6 is a further exploded view of FIG. 5;

fig. 7 is a schematic view of the hidden air intake assembly of the range hood according to the first embodiment of the present invention (with the fan vertically arranged);

FIG. 8 is a cross-sectional view of FIG. 7;

fig. 9 is a sectional view (with the fan horizontal) of a range hood according to a second embodiment of the present invention;

fig. 10 is a sectional view (with the fan vertically arranged) of a range hood according to a second embodiment of the present invention;

fig. 11 is a schematic view of a deflector and a moving mechanism thereof of a range hood according to a second embodiment of the present invention;

fig. 12 is a schematic view (with a horizontal fan) of a range hood according to a third embodiment of the present invention;

fig. 13 is an exploded view of the blower housing of the range hood of fig. 12;

fig. 14 is an exploded structural schematic view of an air outlet plate assembly of a blower housing of the range hood of fig. 12 and a movement mechanism thereof;

fig. 15 is a schematic view of a range hood according to a third embodiment of the present invention (with a fan disposed vertically);

FIG. 16 is a schematic view of a blower housing of the range hood of FIG. 15;

fig. 17 is a schematic view (with a horizontal fan) of a range hood according to a fourth embodiment of the present invention;

figure 18 is a cross-sectional view of the range hood of figure 17;

FIG. 19 is a schematic view of the hidden air intake assembly of the range hood of FIG. 17;

FIG. 20 is an exploded view of FIG. 19;

FIG. 21 is a schematic view of the fifth motion mechanism of FIG. 19;

fig. 22 is a schematic view of a range hood according to a fourth embodiment of the present invention (with a fan disposed vertically);

fig. 23 is a schematic view of the hidden air intake assembly of the extractor hood of fig. 22.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 and 2, a range hood includes a fan frame 1, a fan system 2 disposed in the fan frame 1, and an air intake assembly 3 disposed below the fan frame 1. Wherein, fan system 2 is preferred to adopt centrifugal fan, can be single air inlet fan, also can be two air inlet fans, and its axis transversely extends, and is preferred, and fan system 2's axis is for extending on the horizontal plane. The horizontal direction of the utility model is horizontal or close to the horizontal direction, and the included angle between the horizontal plane and the horizontal plane can be between-5 degrees and 5 degrees. The air inlet component 3 can adopt any existing form.

Referring to fig. 2 to 7, the blower rack 1 includes a rear cover plate 11, a first side plate 12, a second side plate 13, a first adjusting plate 14, a second adjusting plate 15, a front cover plate 16, and an air outlet plate assembly 17. The first side plate 12 extends forward from the left end of the rear cover plate 11, the second side plate 13 extends forward from the right end of the rear cover plate 11, and the rear cover plate 11, the first side plate 12 and the second side plate 13 can be preferably integrally formed, so that a whole is formed, the cross section of the whole is U-shaped, and the front end of the U-shaped body is open.

The first adjusting plate 14 and the first side plate 12 extend in the same direction and are at least partially located on the front side of the first side plate 12, and the front cover plate 16 is covered between the front ends of the first adjusting plate 14 and the second adjusting plate 15. The first adjusting plate 14, the second adjusting plate 15, and the front cover plate 16 may be connected to be integrated. The first side plate 12 and the first adjusting plate 14 are relatively linearly movable (telescopic) in the front-rear direction, so that the depth dimension of the first side plate 12 and the first adjusting plate 14 as a whole in the front-rear direction is changed. The first side plate 12 and the first adjusting plate 14 are always kept at least partially overlapped in the front-rear direction, that is, along the height of the whole first side plate 12 and the first adjusting plate 14, the rear end of the first adjusting plate 14 is kept at the rear side of the front end of the first side plate 12, so as to avoid generating a gap to cause the pressure relief of the fan frame 1.

Similarly, the second adjusting plate 15 and the second side plate 13 extend in the same direction and are at least partially located on the front side of the second side plate 13, and the second side plate 13 and the second adjusting plate 15 are relatively linearly movable (telescopic) in the front-rear direction, so that the depth dimension of the second side plate 13 and the second adjusting plate 15 as a whole in the front-rear direction is changed. The second side plate 13 and the second regulating plate 15 are always kept at least partially overlapped in the front-rear direction, that is, along the height of the whole second side plate 13 and the second regulating plate 15, the rear end of the second regulating plate 15 is kept at the rear side of the front end of the second side plate 13, so as to avoid generating gaps to cause the pressure relief of the fan frame 1.

Each plate constitutes the support body structure of fan frame 1, and wherein rear cover plate 11, first curb plate 12, second curb plate 13 constitute the first support body of fan frame 1, and first regulating plate 14, second regulating plate 15 and front shroud 16 constitute the second support body of fan frame 1, and the preceding tip of first support body is pegged graft in the rear end portion of second support body. Alternatively, a fixed transition plate may be disposed between the first frame body and the second frame body, the first frame body and the second frame body may move back and forth relative to the transition plate, and each frame body may partially overlap with the transition plate in the front-rear direction.

The air outlet plate assembly 17 is disposed at an upper end portion of the frame structure, and includes a first air outlet plate 171, a second air outlet plate 172, a first movable plate 173, and a second movable plate 174. The first air outlet plate 171 is fixedly connected to the rear cover plate 11, the first side plate 12 and the second side plate 13 of the fan frame 1. The second outlet plate 172 is stacked on top of the first outlet plate 171 and may partially overlap, and as described in the present embodiment, the second outlet plate 172 is stacked on top of the first outlet plate 171. The first movable plate 173 is used for filling the gap at the upper end of the frame structure (the position where the first air outlet plate 171 and the second air outlet plate 172 at the upper end of the frame structure are not covered, forming an opening for fluid communication between the fan frame 1 and the upper side of the fan frame 1) when the fan is in a horizontal state; the second flap 174 is used to fill the gap at the upper end of the frame structure when the fan is in a portrait orientation.

First air outlet 1711 has been seted up on first air outlet plate 171, second air outlet 1721 has been seted up on second air outlet plate 172, and first air outlet 1711 is greater than second air outlet 1721, and the relation between them needs to satisfy, rotates 90 state changes around second air outlet plate 172, and second air outlet 1721 all corresponds within first air outlet 1711, when avoiding fan system 2 to place the state change, and second air outlet 1721 is sheltered from. If the rotation angle is required to be maintained at a state other than 90 °, the first air inlet 1711 and the second air outlet 1721 are also allowed to meet the above conditions. The first movable plate 173 and the second movable plate 174 may be overlapped on the first air outlet plate 171, and allow some overlap with the second air outlet plate 172 (for reasons of convenience in processing, etc.), but may not shield the second air outlet 1721. The shape of the first outlet 1711, such as the L-shape shown in fig. 4 in this embodiment, can be obtained through multiple experiments or simulations. On the basis of this, the shape of the first movable plate 173 and the second movable plate 174 can be obtained.

The second air outlet plate 172 is fixed to the fan system 2, and the second air outlet 1721 corresponds to an air outlet of the fan system 2.

The range hood further comprises a first movement mechanism 4 for driving the second air outlet plate 172 to rotate, and a second movement mechanism 5 for driving each side plate and the corresponding adjusting plate to move relatively. In the present embodiment, the first movement mechanism 4 is a motor, which is disposed on the first air outlet plate 171, and the output end 41 is in transmission connection with the second air outlet plate 172, so as to drive the second air outlet 172 to rotate around the vertical axis. Of course, the first motion mechanism 4 may be any other conventional mechanism that can output torque. To avoid the complicated design of the two movable plates, it is preferable that the second air outlet plate 172 is rotated in a fixed axis.

The second moving mechanism 5 includes a first driving mechanism 51, a transmission rod 52, a first guiding element 53 and a first sliding rail assembly 54, the first driving mechanism 51 is a linear driving module, such as a combination of a motor and a lead screw nut shown in this embodiment, alternatively, other existing linear driving modules, such as a combination of an electric push rod and a motor gear rack, may also be used. The transmission rod 52 is provided at the output end of the first drive mechanism 51 so as to be linearly movable in the front-rear direction by being driven by the first drive mechanism 51. Preferably, the first driving mechanism 51 may be disposed at a position below the blower system 2 within the blower housing 1, and the driving rod 52 extends in the left-right direction, and both ends are directly or indirectly connected to the side plates and the adjusting plate of the corresponding sides, respectively. In this embodiment, the transmission rod 52, the side plates and the adjusting plates are connected by a first slide rail assembly 54, the first slide rail assembly 54 has two sets, each set includes a first slide rail 541 and a second slide rail 542 in sliding fit, wherein the first slide rail 541 is fixed on one side of the first side plate 12 and the second side plate 13 facing the inside of the wind frame 1, and the second slide rail 542 is fixed on one side of the first adjusting plate 14 and the second adjusting plate 15 facing the inside of the wind frame 1. The left and right ends of the transmission rod 52 are respectively connected with the first slide rails 541 at corresponding positions, so that when the transmission rod 52 moves back and forth, the first side plate 12 and the second side plate 13 (together with the rear cover plate 11) can be driven to move back and forth. Alternatively, the transmission lever 52 can also be connected to the second sliding rail 542.

The first guiding member 53 is fixedly disposed in the fan frame 1, and is fixed to each side plate when the side plate is a fixing member, and is fixed to each adjusting plate when the adjusting plate is a fixing member. The left end and the right end of the transmission rod 52 respectively penetrate through the first guide piece 53 at the corresponding position, a guide groove 531 is formed in the first guide piece 53, the guide groove 531 extends along the moving path of the transmission rod 52, the moving path of the transmission rod 52 is guided by the guide groove 531, and the moving path is limited.

The utility model discloses can be when the installation of registering one's residence according to the wall cabinet degree of depth (mainly be the scene demand that changes outfit) among the installation environment, rotate in order to match the wall cabinet to fan system 2. Of course, the reversing operation of the fan system 2 may be performed in other situations where adjustment is required. Referring to fig. 2, the fan cross-over condition, i.e. the axis of the fan system 2 extends in the fore-aft direction (one of the lateral directions), is adapted to a situation where the wall cabinet depth is shallow and less than the cross-over fan frame depth (the depth of the fan frame when the conventional fan is cross-over), such as greater than 320mm and less than 420mm in this example. The second moving mechanism 5 is activated to reduce the depth of the fan frame 1 in the front-rear direction so that the depth of the fan frame 1 matches the depth of the wall cupboard, and then the first moving mechanism 4 is activated to laterally place the fan system 2 (whether the first moving mechanism 4 needs to be activated to complete the initial state during installation, so as to realize a kitchen replaceable range hood of a shallow wall cupboard). In this state, preferably, the front end of the first air outlet plate 171 abuts against the front cover plate 16, and the first movable plate 173 fills the gap existing in the air outlet plate assembly 17. If a certain adjustment range is provided, a baffle 18 extending from left to right can be provided on the side of the front cover plate 16 facing the first air outlet plate 171, and has a certain depth in the front-rear direction, and is provided on the upper ends of the first adjusting plate 14 and the second adjusting plate 15, and is vertically overlapped with the air outlet plate assembly 17, so that there is a certain adjustment in the front-rear direction, and there is no additional movable plate assembly to ensure that the air outlet 1721 is in fluid communication with the air outlet 1721 except for the air outlet frame 1.

Referring to fig. 7 and 8, the fan is in a longitudinal position, i.e. the axis of the fan system 2 extends in the left-right direction (one of the lateral directions), which is adapted to the case where the depth of the wall cabinet is greater than the depth of the lateral fan frame, e.g. greater than 420mm in this example. When the air conditioner is installed, the second moving mechanism 5 is firstly started, the depth of the fan frame 1 in the front-rear direction is adjusted, so that the depth of the fan frame 1 is matched with the depth of the hanging cabinet, then the fan system 2 is rotated to be longitudinally placed, after the air conditioner is completed, the first movable plate 173 (smaller) and the second movable plate 174 (larger) fill the gap at the upper end of the frame structure, at this time, the first movable plate 173 can be positioned between the front end of the first air outlet plate 171 and the front cover plate 16 and positioned at one side of the second air outlet plate 172 in the left-right direction, and the second movable plate 174 fills the other side of the second air outlet plate 172 in the left-right direction and the part of the rear side. The state can furthest reduce the noise of the range hood when in use and improve the user experience.

Because the states of the fan frame 1 and the fan system 2 change, the air outlet plate assembly 17 is adjusted and reassembled, and although certain sealing performance can be ensured by close fitting between the plates, in order to better improve the sealing performance, silica gel can be arranged on the bottom surface of the second air outlet plate 172, or the silica gel can be applied after the plates are installed.

When the fan frame 1 degree of depth is less, if the fan transversely puts the state, if there is the breach between fan frame 1 and the air inlet subassembly 3, also can fill through other plates to avoid the pressure release.

Example two

Referring to fig. 9 to fig. 11, in the present embodiment, a difference from the first embodiment is that, in the present embodiment, a baffle 6 is further disposed below the fan system 2, for example, the baffle 6 may be disposed in the air intake assembly 3. The whole downward convex shape that is of guide plate 6 to guide plate 6 includes two water conservancy diversion faces 61 that are a body structure, and water conservancy diversion face 61 is the whole bellied arc of direction upwards gradually keeping away from each other in the middle of guide plate 6. Alternatively, the baffles 61 may be inclined planes extending from bottom to top in a direction away from each other.

The range hood further includes a third moving mechanism 7 for driving the air deflector 6 to rotate around the axis extending in the vertical direction, and the third moving mechanism 7 is fixedly disposed in the air intake assembly 3 through a bracket 71, and in this embodiment, the third moving mechanism 7 is a motor, and an output end of the third moving mechanism is in transmission connection with the air deflector 6, so that the air deflector 6 can be driven to rotate.

Referring to fig. 9, when the fan is horizontal, the deflector 6 extends in the left-right direction, and the deflector surfaces 61 are arranged in front of and behind each other, so that the oil smoke entering from the air intake assembly 3 is guided forward and backward by the two deflector surfaces 61 respectively during the rising process, and enters the fan system 2 from the air inlets 21 on the front side and the rear side of the fan system 2 respectively, and the oil smoke flow path is shown by the arrows in fig. 9.

Referring to fig. 10, when the fan is vertically arranged, the guide plate 6 extends in the front-rear direction, and the guide surfaces 61 are arranged left and right, so that the oil smoke entering from the air intake assembly 3 is guided leftwards and rightwards by the two guide surfaces 61 respectively during the rising process, and enters the fan system 2 from the air inlets 21 on the left side and the right side of the fan system 2 respectively, and the oil smoke flow path is shown by the arrow in fig. 10.

Through the arrangement of the guide plate 6, the effective area of the flow channel and the smooth flow channel matched with the fan system 2 can be improved.

If a state is required which is maintained after other rotation angles than 90 °, the extension direction of the deflector 6 is perpendicular to the axis of the fan system 2, although other angles may be selected as required.

EXAMPLE III

Referring to fig. 12 to 14, in the present embodiment, the difference from the first embodiment is that the outlet plate assembly uses a third movable plate 175 instead of the first movable plate 173 and the second movable plate 174, and the first outlet plate 171, the second outlet plate 172 and the third movable plate 175 are sequentially stacked from bottom to top to avoid interference during rotation. In addition, the shape of the baffle 18 in the present embodiment is different from that in the first embodiment, and it may be a U-shape with an opening facing backward. Suitable shapes for the third movable plate 175 and the baffle 18 can be obtained through a number of experiments.

The range hood further includes a fourth moving mechanism 8 for driving the third movable plate 175 to rotate around the axis extending in the vertical direction, which is similar to the first moving mechanism 4, and can be disposed on the first air outlet plate 171, and the output end of the fourth moving mechanism is in transmission connection with the third movable plate 175.

Thus, when the front-rear depth adjustment of the fan frame 1 is increased and the second air outlet plate 172 and the third flap 175 are rotated by 90 ° from the state shown in fig. 12, referring to fig. 15 and 16, the axis of the fan system 2 is changed from extending in the front-rear direction to extending in the left-right direction, and the gap between the first air outlet plate 171 and the front cover 16 and the gap between the third flap 175 and the front cover 16 can be blocked by the blocking plate 18.

In this embodiment, the baffle 6 in the second embodiment can be also used.

Example four

Referring to fig. 17 to 21, in the present embodiment, the difference from the third embodiment is that the blower frame 1 extends and retracts in the left-right direction, so as to adjust the width in the left-right direction, so as to adapt to hanging cabinets with different widths.

The wind turbine frame 1 also comprises a rear cover plate 11, a first side plate 12, a second side plate 13, a front cover plate 16 and an air outlet plate assembly 17, without providing an adjusting plate. Wherein, the rear cover plate 11 and the front cover plate 16 are fixed relatively to the air intake component 3. The first side plate 12 is located between the rear cover plate 11 and the left side of the front cover plate 16, and the second side plate 13 is located between the rear cover plate 11 and the right side of the front cover plate 16.

The upper end of the first side plate 12 is bent toward the second side plate 13 to form a first upper bent portion 121, the front and rear ends of the first side plate 12 are bent toward the second side plate 13 to form a first side bent portion 122, the upper end of the second side plate 13 is bent toward the first side plate 12 to form a second upper bent portion 131, and the front and rear ends of the second side plate 13 are bent toward the first side plate 12 to form a second side bent portion 132. The first upper bent portion 121 and the second upper bent portion 131 preferably extend in the horizontal direction, and both the upper bent portions may be closely attached below the first outlet plate 171. The first side bent part 131 and the second side bent part 132 preferably extend in a vertical direction, and both side bent parts may be attached to a rear side of the front cover 16.

The first side plate 12 and the bent portion thereof, and the second side plate 13 and the bent portion thereof realize the function of an adjusting plate. The first side plate 12 and the bending portion thereof form a first frame body, and the second side plate 13 and the bending portion thereof form a second frame body. When the first side plate 12 and the second side plate 13 move towards each other, so that the first upper bending portion 121 and the second upper bending portion 131 are hidden under the air outlet plate assembly 17, and the first side bending portion 122 and the second side bending portion 132 at the front end are hidden behind the front cover 16, and the first side bending portion 122 and the second side bending portion 132 at the rear end are hidden in front of the rear cover 11, the width of the fan rack 1 is minimized. When the first side plate 12 and the second side plate 13 move in the direction away from each other, so that the first upper bending portion 121 and the second upper bending portion 131 are almost exposed to the air outlet plate assembly 17, and the first side bending portion 122 and the second side bending portion 132 are almost exposed to the front rear cover 16 and the rear cover 11, the width of the fan frame 1 reaches the maximum. It is of course also possible to have the width of the wind turbine frame 1 in an intermediate state between the minimum and maximum. The range of adjustment of the blower housing 1 in the left-right direction depends on the width of each bent portion, and is usually between 100mm and 150 mm.

Therefore, the range hood further comprises a fifth movement mechanism 9 for driving the first side plate 12 and the second side plate 13 to move left and right, and further driving the bent parts to move left and right, so that the width dimension of the fan frame 1 in the left and right direction is adjusted. Preferably, the fifth movement mechanism 9 includes a second driving mechanism 91, a first link 92, a second link 93, a second guide 94 and a second slide rail assembly 95. The second driving mechanism 91 is a linear driving module, such as a combination of a motor lead screw nut shown in this embodiment, and alternatively, other existing linear driving modules, such as a combination of an electric push rod and a motor gear rack, may also be adopted. The first link 92 and the second link 93 have two, respectively, and the two second links 93 are arranged side by side at a spacing left and right, and each of the second links 93 extends in the front-rear direction. A second slide rail assembly 95 is connected to the front end of each second connecting rod 93, the front cover plate 16 and the first side plate 12 are slidably connected by the second slide rail assembly 95 on the left side of the front end, and the front cover plate 16 and the second side plate 13 are slidably connected by the second slide rail assembly 95 on the right side of the front end. The rear end of each second link 93 is also connected to a second slide rail assembly 95, the second slide rail assembly 95 on the left side of the rear end slidably connects the rear cover plate 11 and the first side plate 12, and the second slide rail assembly 95 on the right side of the rear end slidably connects the rear cover plate 11 and the second side plate 13. One end of each first link 92 is rotatably connected to the output end of the second driving mechanism 91, and the other end of each first link 92 is rotatably connected to the second link 93, and the rotation axis of the first link 92 extends in the vertical direction. The second guide 94 has four, and each second guide 94 corresponds to one end of the second link 93, thereby defining a moving path of the second guide 94. The front second guide 94 is fixed to the front cover 16, and the rear second guide 94 is fixed to the rear cover 11. The second guide 94 may have the same structure as the first guide 53, and the second slide rail assembly 95 may have the same structure as the first slide assembly 54.

Therefore, when the second motion mechanism 91 operates, the output end of the second motion mechanism moves linearly in the front-rear direction to drive the first connecting rod 92 to move synchronously with the end connected with the first connecting rod 92, and due to the limitation of the second connecting rod 93 (the second connecting rod 93 can only move in the left-right direction), the two first connecting rods 92 rotate to drive the corresponding second connecting rods 93 to move left and right, and the motion directions of the two second connecting rods 93 are opposite, so that the first frame body and the second frame body move in opposite directions.

Alternatively, the fifth movement mechanism 9 may be another mechanism that can drive the first side plate 12 and the second side plate 13 to move linearly in opposite directions, such as a slider-crank mechanism and a rack-and-pinion mechanism (two racks are engaged with the same gear) that share the same crank. Still alternatively, the first side plate 12 and the second side plate 13 may not be linked, but may be driven by independent linear driving modules.

The form of the outlet plate assembly 17 may be similar to that of the third embodiment, the shape of each plate of the outlet plate assembly 17 may be adaptively adjusted, and the specific shape may be obtained through experiments or simulations.

This embodiment can be when the installation of registering one's residence according to the wall cabinet width (mainly the scene demand of reloading) in the installation environment, rotate fan system 2 in order to match the wall cabinet. Referring to fig. 17 to 21, the fan is in a horizontal state, that is, the axis of the fan system 2 extends in the front-rear direction (one of the horizontal directions), and this state is adapted to a case where the width of the hanging cabinet is large, for example, larger than 420 mm. The fifth movement mechanism 9 is started firstly, the width of the fan frame 1 in the left-right direction is increased, at this time, at least part of each bending part is exposed out of the front cover plate 16, the rear cover plate 11 and the air outlet plate assembly 17, so that the width of the fan frame 1 is matched with the width of the wall cupboard, and then the fan system 2 is placed transversely.

Referring to fig. 22 and 23, the fan is in a longitudinal position, that is, the axis of the fan system 2 extends in the left-right direction (one of the transverse directions), and this position is adapted to a small width of the wall cabinet, for example, the width ranges from 320mm to 370 mm. When the fan system 2 is installed, the fifth movement mechanism 9 is started firstly, the width of the fan frame 1 in the left-right direction is reduced, at the moment, all bending parts are almost completely hidden in the front cover plate 16 and the rear cover plate 11, so that the width of the fan frame 1 is matched with the width of the hanging cabinet, and then the fan system 2 is longitudinally placed.

Claims

1. The utility model provides a range hood, includes fan frame (1) and sets up fan system (2) in fan frame (1), its characterized in that:

the fan frame (1) comprises a frame body structure, the frame body structure comprises a first frame body and a second frame body, the first frame body and the second frame body are arranged in the front and back direction so as to be capable of moving relatively in the front and back direction so as to change the depth of the fan frame (1), or the first frame body and the second frame body are arranged in the left and right direction so as to be capable of moving relatively in the left and right direction so as to change the width of the fan frame (1);

the axis of the fan system (2) extends transversely and can rotate around the axis extending in the vertical direction so as to match the size of the fan frame (1).

2. The range hood of claim 1, wherein: the fan frame (1) further comprises an air outlet plate assembly (17) arranged at the upper end part of the frame body structure, the air outlet plate assembly (17) comprises a first air outlet plate (171) fixed with the first frame body and a second air outlet plate (172) fixed with the fan system (2) and linked, a first air outlet (1711) is formed in the first air outlet plate (171), a second air outlet (1721) is formed in the second air outlet plate (172), when the second air outlet plate (172) rotates to different states needing to be kept, the second air outlets (1721) correspond to the first air outlet (1711), and the second air outlets (1721) correspond to air outlets of the fan system (2); the air outlet plate assembly (17) further comprises a movable plate for filling a gap except the second air outlet (1721), and the gap is an opening formed in the upper end of the frame structure and used for enabling the interior of the fan frame (1) to be communicated with fluid above the fan frame (1).

3. The range hood of claim 2, wherein: the movable plate is a plate which can be filled in the gap after the state of the fan system (2) is changed.

4. The range hood of claim 2, wherein: the movable plate is a plate which is vertically overlapped with the first air outlet plate (171) and the second air outlet plate (172) and can rotate around an axis extending in the vertical direction.

5. The range hood of claim 2, wherein: the upper end of the frame body structure is provided with a baffle (18), and the baffle (18) is located at the front end of the frame body structure and is vertically overlapped with the air outlet plate assembly (17).

6. The range hood of claim 2, wherein: the range hood further comprises a first moving mechanism (4) arranged on the first air outlet plate (171), and the first moving mechanism (4) drives the second air outlet plate (172) and the fan system (2) to rotate in a fixed shaft mode.

7. The range hood according to any one of claims 1 to 6, wherein: the first frame body comprises a rear cover plate (11), a first side plate (12) and a second side plate (13), the first side plate (12) extends forwards from the left end of the rear cover plate (11), and the second side plate (13) extends forwards from the right end of the rear cover plate (11); the second frame body comprises a first adjusting plate (14), a second adjusting plate (15) and a front cover plate (16), wherein the first adjusting plate (14) and the first side plate (12) extend in the same direction and are at least partially located on the front side of the first side plate (12), the first side plate (12) and the first adjusting plate (14) are always kept to be at least partially overlapped in the front-rear direction, the second adjusting plate (15) and the second side plate (13) extend in the same direction and are at least partially located on the front side of the second side plate (13), the second side plate (13) and the second adjusting plate (15) are always kept to be at least partially overlapped in the front-rear direction, and the front cover plate (16) is covered between the front end portions of the first adjusting plate (14) and the second adjusting plate (15).

8. The range hood of claim 7, wherein: the front end part of the first frame body is inserted into the rear end part of the second frame body; the range hood further comprises a second movement mechanism (5) used for driving the first frame body and the second frame body to move relatively, the second movement mechanism (5) comprises a first driving mechanism (51), the first driving mechanism (51) is a linear driving module, and the first driving mechanism (51) is in transmission connection with the first frame body.

9. The range hood of claim 8, wherein: second motion (5) still include transfer line (52) and first slide rail set spare (54), transfer line (52) set up the output at first actuating mechanism (51), transfer line (52) extend in the left and right direction, first slide rail set spare (54) have two sets ofly, and first slide rail set spare (54) of every group include sliding fit's first slide rail (541) and second slide rail (542), first slide rail (541) are fixed respectively in one side in first curb plate (12) and second curb plate (13) orientation fan frame (1), second slide rail (542) are then fixed respectively in one side in first regulating plate (14) and second regulating plate (15) orientation fan frame (1), both ends are connected with corresponding position's first slide rail (541) respectively about transfer line (52).

10. The range hood according to any one of claims 1 to 6, wherein: the wind power generation frame comprises a frame body structure and a wind power generation device, wherein the frame body structure comprises a rear cover plate (11), a first side plate (12), a second side plate (13) and a front cover plate (16) arranged on the front side of the rear cover plate (11) at intervals, the first side plate (12) is positioned between the rear cover plate (11) and the left side of the front cover plate (16), the second side plate (13) is positioned between the rear cover plate (11) and the right side of the front cover plate (16), and the wind power generation device further comprises a wind outlet plate assembly (17) arranged at the upper end part of the frame body structure; the air outlet structure comprises a first side plate (12), wherein the upper end of the first side plate (12) is bent towards the direction of a second side plate (13) to form a first upper bent part (121), the front end and the rear end of the first side plate (12) are respectively bent towards the direction of the second side plate (13) to form a first side bent part (122), the upper end of the second side plate (13) is bent towards the direction of the first side plate (12) to form a second upper bent part (131), the front end and the rear end of the second side plate (13) are respectively bent towards the direction of the first side plate (12) to form a second side bent part (132), the first side plate (12) and each bent part form a first frame body, the second side plate (13) and each bent part form a second frame body, each upper bent part can be hidden or exposed out of the air outlet plate assembly (17), each side bent part at the front end can be hidden or exposed out of the front cover plate (16), and each side bent part at the rear end can be hidden or exposed out of the rear cover plate (11).

11. The range hood of claim 10, wherein: the range hood further comprises a fifth movement mechanism (9) for driving the first side plate (12) and the second side plate (13) to be linked, so that the first side plate (12) and the second side plate (13) move left and right in opposite directions.

12. The range hood of claim 11, wherein: the fifth movement mechanism (9) comprises a second driving mechanism (91), a first connecting rod (92), a second connecting rod (93) and a second sliding rail assembly (95), the second driving mechanism (91) is a linear driving module, the first connecting rod (92) and the second connecting rod (93) are respectively provided with two, the two second connecting rods (93) are arranged in parallel at intervals from left to right, and each second connecting rod (93) extends along the front-back direction; the front end and the rear end of each second connecting rod (93) are respectively connected with a second sliding rail assembly (95), the front cover plate (16) and the first side plate (12) are connected with the second sliding rail assembly (95) on the left side of the front end in a sliding mode, the front cover plate (16) and the second side plate (13) are connected with the second sliding rail assembly (95) on the right side of the front end in a sliding mode, the rear cover plate (11) and the first side plate (12) are connected with the second sliding rail assembly (95) on the left side of the rear end in a sliding mode, and the rear cover plate (11) and the second side plate (13) are connected with the second sliding rail assembly (95) on the right side of the rear end in a sliding mode.

13. The range hood according to any one of claims 1 to 6, wherein: still be provided with guide plate (6) in the below of fan system (2), guide plate (6) are whole to be the bellied shape downwards, guide plate (6) rotate around the axis that vertical direction extends to air intake (21) with oil smoke direction fan system (2).

14. The range hood of claim 13, wherein: an air inlet assembly (3) is arranged below the fan rack (1), and the guide plate (6) is arranged in the air inlet assembly (3); the range hood further comprises a third movement mechanism (7) for driving the guide plate (6) to rotate around the axis extending in the vertical direction, and the third movement mechanism (7) is fixedly arranged in the air inlet assembly (3) through a support (71).