CN218864252U - Cooking fume exhauster - Google Patents

Abstract

The utility model discloses a range hood, including fan module and the control screen of setting in the fan module, its characterized in that: the range hood further comprises a movement mechanism for driving the control screen to lift relative to the fan module, so that the control screen can at least partially descend below the fan module. Compared with the prior art, the utility model has the advantages of: by controlling the lifting design of the screen, the operation requirements at different heights can be adapted, so that the operation convenience is improved, and the screen is far away from an oil smoke environment; the hidden design of the control screen can realize low space occupancy rate, simple structure and low cost; the rigid structure design of the control screen module solves the problem that a user clicks and uses the integral rigidity when the control screen descends to the maximum height.

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, and is accelerated by the fan, collected by the volute and guided to be discharged outdoors.

The actual operating environment of the range hood in the current market uses a traditional control mode, and a screen and the range hood cannot be fused. For example, the intelligent screen range hood disclosed in the chinese patent with the application number of 201911286720.8. The intelligent screen range hood comprises a range hood body, an intelligent screen arranged on the range hood body, a controller, a communication module and an audio output module.

In the range hood in the prior art, the position and the angle of the screen depend on the panel of the range hood, so that the range hood is too inclined or too high to operate conveniently, and the requirement of actual control operation cannot be met; in addition, the existing screen is exposed in an oil smoke environment no matter in a working state or a non-working state, the screen is polluted by oil smoke for a long time, so that the surface of the screen is greasy, and display or touch is affected, and the oil smoke is usually high in temperature, so that the service life of the screen is affected when the screen is in a high-temperature environment for a long time; even some prior art have also adopted some hidden schemes to prevent that the screen from revealing under the oil smoke environment, for example, set up solitary protective housing or whole elevating gear for the screen is extra sets up special protective housing, however, above-mentioned setting can lead to holistic structure complicacy, space occupancy height, cost rising to the structure of increase can lead to the later stage maintenance rate height.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a not enough exists to the above-mentioned prior art provides a range hood, makes the screen keep away from the oil smoke region under non-operating condition when it can improve screen operation convenience, avoids the screen to be infected with by the greasy dirt, influences the life-span.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a range hood, includes fan module and the control screen of setting in the fan module, its characterized in that: the range hood further comprises a movement mechanism for driving the control screen to lift relative to the fan module, so that the control screen can at least partially descend below the fan module. The control screen is arranged relative to the fan module instead of the panel and the like, so that the control screen is in a state of being far away from an oil smoke area when not in use, and the problem of being polluted by oil stains is avoided; when the screen is required to be controlled, the screen is lowered to the position below the fan module through the lifting device, so that the screen can be ensured to be positioned in the front or on the upper side of a user, and the control of the user is facilitated.

Furthermore, because the range hood cannot completely suck the oil smoke, part of escaping oil smoke inevitably exists, the escaping oil smoke rises to the area of the fan module, the control screen still inevitably contacts the oil smoke, and the risk of oil stain contamination and service life reduction is inevitably brought to the control screen under long-time contact. Therefore, the second technical problem to be solved by the present invention is how to solve the above problems in a manner designed with a low cost, a low space occupation rate, and a simple structure.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the fan module comprises a fan frame used for arranging a fan system and a fan outer cover arranged on the periphery of the fan frame, and the control screen can be contained in a space between the fan frame and the front side of the fan outer cover. Through controlling the screen and pertinence setting up in the space between fan frame and fan cover, the purpose utilizes the existing/conventional structure of range hood's fan module, do not increase additional structure and cost, reduce under the prerequisite of space occupancy, realize controlling hiding of screen, avoid exposing under high temperature oil smoke environment for a long time under out of operation state, thereby further realized with oil smoke environment or kitchen high temperature environment effectively isolated, the probability of controlling the screen and being infected with by the greasy dirt has been reduced, high temperature direct contact has been avoided, and the service life is prolonged.

Preferably, the movement mechanism comprises a driving mechanism and a lifting fixing plate, the driving mechanism is a linear driving module, a switching port is formed in the lifting fixing plate, the output end of the linear driving module is connected with the switching port, the lifting fixing plate is fixed with the control screen, and the force of the driving mechanism can be dispersed and stressed through the switching port and the lifting fixing plate to protect the control screen.

In order to avoid interference between the control screen and the switching port, an avoiding notch for avoiding the switching port is formed in the upper end of the control screen, and the position of the avoiding notch corresponds to the switching port.

For the intensity that increases the control screen, control the preceding shell and the backshell that the screen includes that the front and back lid closes, preceding shell front side is provided with display screen and panel, the position that the shell is located the panel top in the front is fixed to the lift fixed plate, the periphery around the display screen is for enclosing the glass panels of frame form to the panel.

In order to further strengthen the strength, the front shell is provided with a first reinforcing rib towards the rear side of the rear shell.

For further strengthening the strength, the control screen further comprises a sealing cover plate, the sealing cover plate covers the rear side of the front shell to seal a circuit board located on the rear side of the front shell, a second reinforcing rib is arranged on the front side of the front shell, and the second reinforcing rib is staggered with the upper end portions of the panel and the sealing cover plate.

For the waterproof and moisture-proof performance of the improved control screen, waterproof connection is carried out between the panel and the front shell through sealing silica gel.

In order to increase the glue containing amount and improve the sealing connection performance, a glue overflow groove for sealing silica gel is formed on the front shell.

Preferably, for the waterproof and moistureproof performance of the control screen is further improved, the control screen further comprises a sealing cover plate, the sealing cover plate covers the rear side of the front shell to seal a circuit board positioned at the rear side of the front shell, and the front shell and the sealing cover plate are compressed and sealed through a first sealing ring.

Preferably, in order to further improve the waterproof and moistureproof performance of the control screen, the lower end part of the shell formed by the front shell and the rear shell is upwards sunken to form a clamping groove, the clamping groove is provided with a reset key for resetting the display screen, the reset key penetrates through the clamping groove to be partially located outside the shell and partially extend into the shell, and a second sealing ring is arranged between the periphery of the part of the reset key located inside the shell and the shell.

In order to adjust the height of the control screen in a self-adaptive manner, a camera capable of carrying out face recognition and further used for controlling the lifting height of the control screen is installed at the position, close to the lower edge, of the control screen.

Compared with the prior art, the utility model has the advantages of: the liftable control screen is arranged relative to the fan module, so that the operation requirements at different heights can be met, and the operation convenience is improved; the control screen is arranged in a space between the fan frame and the fan cover in a targeted manner, and the control screen is hidden under the premise of not increasing additional structures and cost and reducing space occupancy rate by utilizing the existing/conventional structure of the fan module of the range hood, so that the operation convenience is improved, and the screen is prevented from being polluted by oil stains and the service life is shortened when the screen is in an oil smoke environment for a long time; the structural design of the control screen module solves the problem that a user clicks and uses the integral rigidity when the control screen descends to the maximum height; the waterproof and moistureproof design of the structure of the control screen module solves the problem that the appearance piece is difficult to ensure waterproof and airtight performance.

Drawings

Fig. 1 is a front view of a range hood according to a first embodiment of the present invention in a use state;

fig. 2 is a sectional view of the range hood according to the embodiment of the present invention in a use state;

fig. 3 is a schematic view of a hidden fan housing of a range hood according to a first embodiment of the present invention;

fig. 4 is an exploded schematic view of the hidden air intake assembly and the fan housing of the range hood according to the first embodiment of the present invention;

fig. 5 is a schematic view of a lifting fixing plate and a control screen of the range hood according to the first embodiment of the present invention;

fig. 6 is an exploded view of the control screen of the range hood according to the first embodiment of the present invention;

fig. 7 is a schematic view of a rear shell of a control screen of a range hood according to a first embodiment of the present invention;

fig. 8 is a sectional view of the control screen of the range hood according to the first embodiment of the present invention;

FIG. 9 is an enlarged view of a portion I of FIG. 8;

fig. 10 is a front view of a range hood according to a first embodiment of the present invention in a closed state;

fig. 11 is a schematic view of the range hood according to the first embodiment of the present invention showing the fan housing hidden in the closed state;

fig. 12 is a schematic view of a control screen of a range hood according to a second embodiment of the present invention;

fig. 13 is a schematic view of a control screen of a range hood according to a third embodiment of the present invention.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to 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 may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered limiting, as "upper", "lower", and the like are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 to 5, a range hood includes a fan frame 1 for installing a fan system (not marked on the drawing, but in the prior art), a fan housing 2 disposed on the periphery of the fan frame 1, and an air intake assembly 3 disposed below the fan frame 1, and may be a range hood in a top-suction type, a side-suction type, or other forms. The fan system, the fan frame 1 and the fan housing 2 jointly form a fan module, and the fan module is of an existing/conventional structure of the range hood.

The range hood further comprises a control screen 4 for controlling the range hood, which is an intelligent screen, such as similar to an intelligent tablet. Control screen 4 and set up on the fan module, set up relatively fan module liftable ground, fall to at least part when needing to use and be located fan module below, seek suitable high operation of being convenient for, then rise to the fan module when not needing (especially the front side of fan frame 1), can avoid from will controlling screen 4 and set up in the runner or the region that the oil smoke passed through, and receive the influence of oil smoke from this. In this embodiment, certain interval has between the front side of fan frame 1 and the front side of fan dustcoat 2, control in screen 4 and its motion can accomodate the space that this interval formed, utilize existing conventional structure of range hood fan module promptly, under the prerequisite that does not increase extra structure and cost, reduces space occupancy, realize controlling hiding of screen 4 to avoid the screen to lead to controlling screen 4 to be stained with by the greasy dirt and life-span to descend under being in the oil smoke environment for a long time when improving operation convenience. When the range hood is opened to enter a use state, the smoke baffle plate on the front side of the air inlet component 3 is opened so that oil smoke enters the air inlet component 3, and a circular suction air inlet mode or other normally open air inlet modes can be adopted.

The moving mechanism comprises a driving mechanism 51 and a lifting fixing plate 52, preferably, the driving mechanism 51 is a linear driving module, and is disposed on the front side of the blower frame 1, and in this embodiment, comprises a motor 511, a screw rod 512 and a nut 513, the screw rod 512 extends in the up-down direction, the motor 511 can drive the screw rod 512 to rotate around its axis, and the nut 513 is connected to the screw rod 512 as the output end of the linear driving module, so as to move linearly up and down when the screw rod 512 rotates. The driving mechanism 51 may also adopt other existing structures, such as a combination of a motor, a gear and a rack, an electric push rod, and the like.

The elevation fixing plate 52 is fixed to the nut 513 so as to be elevated with the nut 513. The manipulation screen 4 is fixedly installed on the elevation fixing plate 52 so as to be elevated along with the elevation fixing plate 52. The moving mechanism further comprises guide mechanisms 53 arranged on the left side and the right side of the front side of the fan frame 1, the guide mechanisms 53 are preferably sliding fit sliding rail assemblies, one sliding rail is fixed with the fan frame 1, and the other sliding rail is fixed with the lifting fixing plate 52. In order to facilitate the fixing of the lifting fixing plate 52 to the left and right slide rails, in this embodiment, the lifting fixing plate 52 has a U-shaped cross section, and the opening of the U-shaped cross section faces backwards.

The elevation fixing plate 52 is preferably made of stainless steel, so that rigidity can be ensured, and is fixed to the control screen 4 through screws, and is preferably fixed to the control screen 4 through 5 screws distributed at different positions on the elevation fixing plate 52 to distribute the tension and compression force transmitted by the driving mechanism 51. In order to prevent the whole operation screen 4 from directly bearing the pulling and pressing force of the driving mechanism 51, the moving mechanism further includes an adapter 54 disposed on one side of the lifting fixing plate 52 facing the output end of the driving mechanism 51, the adapter 54 is used for being fixed with the nut 513, the upper end of the operation screen 4 is structurally avoided to form an avoiding gap 41, and the position of the avoiding gap corresponds to the adapter 54 to avoid the adapter 54. The adapter 54 is made of zinc alloy die casting and is fixed on the lifting fixing plate 52, and the lifting fixing plate 52 indirectly disperses stress to protect the service life of the control screen 4.

Referring to fig. 6 and 7, when the user operates the control screen 4, the control screen 4 is actually in a cantilever structure and bears the pressure applied vertically by the user, which is also the reason why the lifting fixing plate 52 adopts a large plate to disperse the pressure, and the deformation of the control screen 4 is reduced. At the same time, the control screen 4 is also structurally reinforced. The control screen 4 comprises a front shell 42 and a rear shell 43 which are covered front and rear, a display screen 44 and a panel 45 are arranged on the front side of the front shell 42, the display screen 44 (touch screen) can be operated on the display screen 44, the panel 45 can also be operated, and a circuit board 48, wiring and the like can be arranged in a space between the front shell 42 and the rear shell 43. The escape notch 41 is formed at the upper end portions of the front case 42 and the rear case 43, and the lift fixing plate 52 is fixed to a position of the front case 42 above the panel 45. The display screen 44 is disposed at the front side of the front housing 42, and is operable on the display screen 44 to control the range hood, and to display information such as an operation state and a recipe of the range hood on the display screen 44, or to perform multimedia playing. The panel 45 is a glass panel, and has a frame shape surrounding the periphery of the display screen 44. The control screen 4 further includes a sealing cover 46 covering the rear side of the front case 42 corresponding to the position of the panel 45, and further sealing a circuit board 48 disposed between the front case 42 and the rear case 43.

Preferably, the panel 45 has a thickness of about 3mm and is attached to the front case 42 by silicone rubber or double-sided adhesive. The front shell 42 has a first rib 421 toward the rear side of the rear shell 43, which is preferably staggered laterally and longitudinally to further enhance the overall rigidity. Similarly, the rear case 43 also has a second rib 431 on the front side toward the front case 42, and the second rib 431 is offset from the upper ends of the panel 45 and the seal cover 46 by a distance of 10mm or more, and preferably extends in the lateral direction. The rear case 43 is assembled with the front case 42 by a binding screw to bear and disperse a pressing force vertically applied by a user. With the above structure, the structural strength of the manipulation screen 4 is enhanced.

Referring to fig. 8 and 9, in addition, the control screen 4 needs to be protected from water and moisture so as to satisfy the requirements of the warm and humid environment of the kitchen and the wet rag of the user. Carry out waterproof connection through sealed silica gel between panel 45 and the preceding shell 42, in order to guarantee glue film thickness and prevent overflowing gluey, be formed with the groove 422 that overflows that is used for sealed silica gel on the preceding shell 42 to further improve sealed waterproof performance, the difference in height is preferred about 0.5 mm. The front shell 42 and the sealing cover 46 are tightly sealed by a first O-ring 423. The lower end of the housing formed by the front shell 42 and the rear shell 43 is recessed upwards to form a slot 424, the slot 424 is a through slot, the reset key 47 is arranged at the slot 424, and the reset key 47 penetrates through the slot 424, so as to be partially located outside the housing and partially extend into the housing for resetting the display screen 44. A second sealing ring 425 is arranged between the outer periphery of the reset button 47 in the shell and the shell, so that the compression sealing is realized. To ensure ease of pressing, the seal between the reset button 47 and the housing may be beveled to ensure that the user applies a force F that resists less during travel and also presses the seal more tightly when returning.

Referring to fig. 10 and 11, when the range hood is closed, the control screen 4 is hidden inside the decorative housing 2 by moving upwards, so that the temperature of the working environment around the control screen 4 is reduced. Referring to fig. 1 and 2, the control screen 4 can be awakened by voice or touch with one key on the smoke barrier 8 arranged at the front side of the air inlet component 3, and the control screen 4 is moved down to a position where a user can operate conveniently through a motion mechanism, so that the user interaction feeling is enhanced.

Referring to fig. 4 again, a camera 9 is installed on the control screen 4 near the lower edge, and the camera 9 is preferably a pinhole camera, so that the descending height of the control screen 4 can be automatically corrected through face recognition to adapt to users with different heights to use and control.

The above-mentioned mode of adaptive height adjustment can adopt the prior art, and the concrete implementation is as follows: the user turns on the range hood by voice or wakes up the range hood by touching the switch key, the control screen 4 descends, and the camera 9 is exposed outside the range hood and can identify the face area of the operating user. Preferably, the algorithm controls the central point O of the reckoning face area, calculates an angle AOH between a connecting line AO between the center a of the camera 9 and the face center and a horizontal line OH, judges whether the angle AOH is equal to 0, stops descending if yes, and continues descending until the angle AOH =0 if not, or stops until the motion mechanism reaches the lowest end position. The actual height of the user can be inferred to be lower than the height of a common adult through the descending height of the screen, the user is warned that minor persons independently operate cautionary matters, and information is sent to the binding user through the APP to inform the binding user.

The range hood further comprises a mounting plate 6 which is mounted below the fan frame 1 and extends forwards from the position, close to the upper end, of the air inlet assembly 3, and a sound box 7 can be mounted on the mounting plate 6, so that sound matched with the control screen 4 can be played. The front side of the mounting plate 6 extends forwards beyond the front side of the fan frame 1, and the lower end part of the front side of the fan housing 2 can be attached to the front side end part of the mounting plate 6. The mounting panel 6 has been seted up near the position of front end portion and has been stepped down hole 61, and the shape and the size of stepping down hole 61 all with control screen 4 adaptation to pass through when can supplying to control screen 4 and go up and down.

Referring to fig. 10 and 11, when the range hood is closed or the control screen 4 is not needed, the control screen 4 can be lifted upwards and stored on the mounting plate 6, and at this time, the lower end part of the control screen 4 is preferably located in the abdicating hole 61 or flush with the upper edge of the abdicating hole 61 to block the abdicating hole 61, so as to completely isolate the oil smoke.

Furthermore, the utility model discloses a control 4 overall arrangement of screen outside the oil smoke runner, can not exert an influence to the performance of the fan system in the fan frame 1.

Example two

Referring to fig. 12, in the present embodiment, the difference from the first embodiment is that the left, right and lower end edges of the panel 45 exceed the edges of the front case 42 at the corresponding positions, thereby reducing the difficulty in processing the case.

EXAMPLE III

Referring to fig. 13, the difference between the first embodiment and the first embodiment is that the front shell 42 is formed by splicing at least two separate parts, especially, the part matched with the panel 45 is a separate part, and the part is also a part with higher precision requirement, thereby simultaneously solving the difficulty of mold design and the gap between the glass and the shell.

Claims (12)

1. The utility model provides a range hood, includes fan module and controls screen (4) of setting on the fan module, its characterized in that: the range hood further comprises a movement mechanism for driving the control screen (4) to lift relative to the fan module, so that the control screen (4) can at least partially descend below the fan module.

2. The range hood of claim 1, wherein: the fan module is including fan frame (1) and fan dustcoat (2) of setting in fan frame (1) periphery that are used for setting up the fan system, control in the space that screen (4) can be accomodate between the front side of fan frame (1) and fan dustcoat (2).

3. The range hood of claim 1, wherein: the movement mechanism comprises a driving mechanism (51) and a lifting fixing plate (52), the driving mechanism (51) is a linear driving module, a switching port (54) is formed in the lifting fixing plate (52), the output end of the linear driving module is connected with the switching port (54), and the lifting fixing plate (52) is fixed with the control screen (4).

4. The range hood of claim 3, wherein: an avoiding gap (41) for avoiding the adapter (54) is formed at the upper end of the control screen (4), and the position of the avoiding gap (41) corresponds to the adapter (54).

5. The range hood of claim 1 or 2, wherein: the movement mechanism comprises a lifting fixing plate (52), the control screen (4) comprises a front shell (42) and a rear shell (43) which are covered front and rear, a display screen (44) and a panel (45) are arranged on the front side of the front shell (42), the lifting fixing plate (52) is fixed at the position, above the panel (45), of the front shell (42), and the panel (45) surrounds the periphery of the display screen (44) for surrounding a frame-shaped glass panel.

6. The range hood of claim 5, wherein: the front shell (42) has a first rib (421) on the rear side facing the rear shell (43).

7. The range hood of claim 5, wherein: control screen (4) and still include sealed apron (46), sealed apron (46) lid closes circuit board (48) that are located preceding shell (42) rear side in order to seal at the rear side of preceding shell (42), rear shell (43) have second strengthening rib (431) towards the front side of preceding shell (42), second strengthening rib (431) stagger with the upper end of panel (45) and sealed apron (46) respectively.

8. The range hood of claim 5, wherein: and the panel (45) is in waterproof connection with the front shell (42) through sealing silica gel.

9. The range hood of claim 6, wherein: an overflow groove (422) for sealing silica gel is formed on the front shell (42).

10. The range hood of claim 5, wherein: the control screen (4) further comprises a sealing cover plate (46), the sealing cover plate (46) covers the rear side of the front shell (42) to seal a circuit board (48) located on the rear side of the front shell (42), and the front shell (42) and the sealing cover plate (46) are compressed and sealed through a first sealing ring (423).

11. The range hood of claim 5, wherein: the lower end of the shell body formed by the front shell (42) and the rear shell (43) is upwards sunken to form a clamping groove (424), a reset key (47) used for resetting the display screen (44) is arranged at the clamping groove (424), the reset key (47) penetrates through the clamping groove (424) to be partially positioned outside the shell body and partially extend into the shell body, and a second sealing ring (425) is arranged between the periphery of the reset key (47) positioned in the shell body and the shell.

12. The range hood according to any one of claims 1 to 4, wherein: the position of the control screen (4) close to the lower edge is provided with a camera (9) which can recognize the human face and is used for controlling the lifting height of the control screen (4).

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