CN110836400A - Air curtain range hood - Google Patents
Air curtain range hood Download PDFInfo
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- CN110836400A CN110836400A CN201810942016.2A CN201810942016A CN110836400A CN 110836400 A CN110836400 A CN 110836400A CN 201810942016 A CN201810942016 A CN 201810942016A CN 110836400 A CN110836400 A CN 110836400A
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- air
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- curtain
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- 239000000779 smoke Substances 0.000 claims abstract description 33
- 238000010411 cooking Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 239000003517 fume Substances 0.000 description 5
- 239000004071 soot Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2028—Removing cooking fumes using an air curtain
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses an air curtain range hood, which comprises a first air curtain device, a second air curtain device and a control device, wherein the first air curtain device is used for generating a first air curtain capable of shielding oil smoke; the second air curtain device is used for generating a second air curtain which can shield oil smoke and control the flow condition of the first air curtain; at the same elevation, the flow rate of the second curtain is greater than the flow rate of the first curtain. The air curtain range hood introduced by the invention adjusts the effective distance of the shielding air curtain through the air curtain airflow difference between the two air curtain devices.
Description
Technical Field
The invention belongs to the field of kitchen air purification equipment, and particularly relates to an air curtain range hood.
Background
In the air curtain range hood in the prior art, an air curtain is arranged between a user and a pot and between the user and a cooking bench to isolate the user from oil smoke. However, the temperature of the oil fume is higher after the oil fume is generated at a position close to the pot opening, the components of the oil and the water are in a gaseous state, the density of the oil fume and the water is lower than that of air in the surrounding environment, the rising trend of the oil fume and the water is very obvious, and the oil fume is shielded without an air curtain within a certain distance close to the pot opening. In addition, the air curtain airflow at the position downward relative to the vertical direction drives the air at the pot opening position to flow downward, so that the air pressure at the pot opening position is reduced, and the upward diffusion of the oil smoke is influenced. The kitchen environment is limited, the space of the cooking bench is more limited, and the air flowing phenomenon around the kitchen environment caused by the air curtain can influence the gas environment in the working area (above the cooking bench) of the range hood to different degrees. Therefore, the working effect of the range hood can be influenced by the overlarge action range of the air curtain airflow in the vertical direction. Furthermore, in the cooking process, the hands and arms of the user mostly act near the cooking bench or near the pot opening, and the large part of the air curtain flow inevitably blows on the hands and arms of the user, so that the user is uncomfortable. Particularly, some users are sensitive to airflow, and the skin temperature environment and the airflow environment in the vicinity of the same area cause allergic reactions. Therefore, how to reasonably control the effective distance of the air curtain airflow and avoid the problem that the invalid air curtain influences the oil smoke to rise or causes discomfort of a user becomes urgent to be solved.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an air curtain range hood which comprises two air curtain devices with different air supply rates and different setting heights, wherein the effective distance of a shielding air curtain is adjusted through the air curtain airflow difference between the two air curtain devices.
In order to solve the technical problems, the invention adopts the technical scheme that:
an air curtain range hood comprising:
the first air curtain device is used for generating a first air curtain capable of shielding oil smoke;
the second air curtain device is used for generating a second air curtain which can shield oil smoke and control the flow condition of the first air curtain; at the same elevation, the flow rate of the second curtain is greater than the flow rate of the first curtain.
The invention is further configured to: the flow conditions comprise the flow rate and/or flow direction of the air curtain airflow and/or the flow rate at any position in the flow locus thereof;
preferably, the second air outlet of the second air curtain device is arranged adjacent to the first air outlet of the first air curtain device towards one side of the edge of the equipment.
The invention is further configured to: the air curtain range hood controls the flow condition of the first air curtain in a mode of controlling the flow condition of the second air curtain;
preferably, the first air curtain and the second air curtain together constitute at least part of a shielding air curtain for shielding oil smoke.
The invention is further configured to: the air curtain range hood controls the flow condition of the first air curtain by controlling the relative position of the airflow starting end of the second air curtain and the airflow starting end of the first air curtain;
preferably, the air curtain range hood comprises an air suction opening for sucking oil smoke, and the air curtain range hood controls the flow condition of the first air curtain by controlling the airflow starting end of the second air curtain and/or the relative position between the airflow starting end of the first air curtain and the air suction opening.
The invention is further configured to: the air flow directions of the first air curtain and the second air curtain at least at the initial ends of the first air curtain and the second air curtain are parallel to each other/form a certain included angle;
preferably, said angle is less than 15 °;
preferably, the first air curtain and the second air curtain are at least equal in included angle between the starting ends of the first air curtain and the second air curtain and the vertical direction.
The invention is further configured to: the flow direction of the first air curtain and/or the second air curtain at least at the starting end thereof is adjustable;
preferably, the first air curtain device and/or the second air curtain device comprises a deflectable air deflector arranged to match the air outlet, and the flow direction of the first air curtain and/or the second air curtain at the starting end thereof is controlled by at least the air deflector.
The invention is further configured to: the air curtain range hood comprises a shell forming the external outline of the air curtain range hood, and the first air outlet of the first air curtain device and/or the second air outlet of the second air curtain device are/is in sliding connection with the shell through a sliding connection assembly;
preferably, the extending directions of the first air outlet and the second air outlet are matched/parallel;
preferably, at least part of the first air outlet and/or the second air outlet is in a strip-shaped hole/strip-shaped slit shape.
The invention is further configured to: the first air curtain device comprises a body, a first air outlet and/or a second air outlet, wherein the first air outlet and/or the second air outlet are arranged on the body, and the first air outlet and/or the second air outlet are/is connected with the body in a sliding mode through a sliding connection assembly.
The invention is further configured to: the sliding connection assembly comprises a sliding card/sliding chute which is respectively arranged on the first air outlet and/or the second air outlet, and a sliding chute/sliding card which is arranged at the corresponding position of the shell/body in a matching way;
preferably, the sliding mode of the sliding connection assembly is controlled by a control system of the air curtain range hood and/or controlled by a user;
preferably, the sliding manner includes: sliding distance and/or sliding direction and/or sliding timing and/or sliding speed and/or sliding track;
preferably, at least a portion of the slide/chute is disposed at least one location around the air outlet.
The invention is further configured to: the distance from the starting end of the first air curtain to the surface formed by the top ends of the air curtain range hoods is smaller than the distance from the starting end of the second air curtain to the surface formed by the top ends of the air curtain range hoods;
preferably, the distance from the first air outlet of the first air curtain device to the surface formed by the top ends of the air curtain range hood is smaller than the distance from the second air outlet of the second air curtain device to the surface formed by the top ends of the air curtain range hood.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. According to the air curtain range hood introduced by the invention, the effective distance of the shielding air curtain airflow generated by the air curtain device is adjustable, and the adjustment mode can be automatically controlled by the range hood or manually adjusted by a user according to the actual condition. The air supply distance (effective distance of shielding air curtain airflow) of the shielding air curtain is only in the range where the oil smoke begins to diffuse, and the shielding air curtain airflow is blocked at the position where the oil smoke cannot diffuse, so that the influence of the shielding air curtain airflow on the nearby pot opening, the flame on the cooking bench and the body of a user is avoided.
2. The shielding air curtain of the air curtain range hood introduced by the invention at least consists of two air curtains, and the flow speeds of the at least two air curtains at the same height position are different. The air curtain airflow with the large flow velocity can provide a supporting effect for the air curtain airflow with the small flow velocity, the phenomenon that the air curtain airflow with the small flow velocity is dispersed too early is avoided, and the shielding effect of the shielding air curtain on oil smoke is further reduced.
3. According to the air curtain range hood introduced by the invention, the influence effect of the second air curtain on the first air curtain can be adjusted by adjusting the relative position of the air outlet, so that the effective flowing distance of the air flow of the first air curtain can be adjusted.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a part of the structure of an air curtain range hood in one embodiment of the present invention
FIG. 2 is a schematic view of the structure of the area B shown in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the area B shown in FIG. 1 according to another embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the area B shown in FIG. 1 according to another embodiment of the present invention;
FIG. 5 is a schematic view of the structure of area C of FIG. 4 in one embodiment of the present invention;
FIG. 6 is a bottom view of the air curtain range hood in one embodiment of the present invention;
fig. 7 is a bottom view of an air curtain range hood in another embodiment of the invention.
In the figure: 11. a first air curtain device; 12. a second air curtain device; 111. a first air outlet; 112. a second air outlet; 1110. a first air curtain; 1120. a second air curtain; 2. a housing; 3. an air suction opening; A. the front side/side facing the user of the air curtain range hood; 51. a chute; 52. and (6) sliding the card.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 7, the air curtain range hood according to the embodiment includes a first air curtain device 11 for generating a first air curtain 1110 capable of shielding oil smoke; a second air curtain device 12 for generating a second air curtain 1120 capable of shielding soot and controlling the flow condition of the first air curtain 1110; at the same elevation, the flow rate of the second curtain 1120 is greater than the flow rate of the first curtain 1110.
The same height refers to a certain height relative to a horizontal plane formed by the top ends of the air curtain range hood when the air curtain range hood is in a use state. The range of this "height" is the effective distance to shield the air curtain flow. The effective distance of the shielding air curtain airflow refers to: the shield air curtain airflow has a distance to flow when the shield air curtain airflow intensity/airflow velocity/airflow volume decays to 30% to 70% of the corresponding amount at the beginning of the shield air curtain airflow. Or the distance between the crossed position of the first air curtain and the second air curtain and the horizontal plane formed by the top end of the range hood is the effective distance of the air curtain airflow. Preferably, the shield air curtain airflow flows a distance in a vertical direction.
Further, the first air curtain device 11 and the second air curtain device 12 in this embodiment may have the same structure (not necessarily the same size). Through the air curtain range hood introduced by the embodiment, the effective distance of the shielding air curtain airflow generated by the air curtain device is adjustable, and the adjustment mode can be automatically controlled by the range hood and also can be automatically and manually adjusted by a user according to actual conditions.
Further, the first air curtain 1110 and the second air curtain 1120 in the present embodiment together constitute at least a portion of a shielding air curtain for shielding soot. The shielding air curtain comprises at least two air curtains (such as a first air curtain 1110 and a second air curtain 1120) with different movement rates on the same height, the air flow speed of at least one air curtain at the beginning end of the air curtain is adjustable, and the effective distance of the air flow of the shielding air curtain can be adjusted by controlling the air flow speed of the beginning end of at least one air curtain of the range hood. The adjustment of the flow speed of the initial end of the air curtain airflow can be implemented by adjusting the output power of the air curtain fan. The air supply distance (effective distance of air curtain airflow) of the shielding air curtain is only in the range where the oil smoke begins to diffuse, and the shielding air curtain airflow is blocked (scattered) at the position where the oil smoke cannot diffuse, so that the influence of the air curtain airflow on flames near a pot opening, on a cooking bench and on the body of a user is avoided. The air curtain range hood introduced in the invention shields the oil smoke only at the position where the oil smoke has the diffusion phenomenon through the shielding air curtain. Thereby avoiding the pressure difference between the working area of the range hood (below the range hood, above the cooking bench and in the suction range of the range hood) and the surrounding environment (the position of the user) caused by the shielding air curtain function, and avoiding the negative influence caused by the range hood sucking the oil smoke.
Example two
As shown in fig. 1 to 7, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air curtain range hood controls the flow condition of the first air curtain 1110 by controlling the flow condition of the second air curtain 1120. Preferably, the first air curtain 1110 and the second air curtain 1120 together constitute at least a portion of a shielding air curtain for shielding soot.
Further, in this embodiment, the first air curtain 1110 and the second air curtain 1120 are parallel to/at an angle with respect to the air flow direction at least at the position of their respective beginning. Preferably, the included angle is less than 15 °. The first air curtain 1110 and/or the second air curtain 1120 are adjustable in flow direction at least at the beginning thereof. Preferably, the first air curtain device 11 and/or the second air curtain device 12 include a deflectable air deflector arranged to cooperate with the air outlet thereof, and the flow direction of the first air curtain 1110 and/or the second air curtain 1120 at the beginning thereof is controlled by at least the air deflector. Preferably, the air flow directions of the first air curtain and the second air curtain are at least at the beginning ends of the first air curtain and the second air curtain and are symmetrically arranged with the vertical direction.
The technical scheme in the embodiment requires that the two air curtains at least keep the direction consistency at the initial ends, and the flow direction of the air curtain airflow at the initial ends can be adjusted by the deflection angle of the air deflector at the air outlet of the air curtain range hood. When the equipment is in a stable use state, the air flows of at least two air curtains are kept in a parallel state as much as possible. Because the flow velocities of the two air curtains at the same height position are different, namely: at a certain height position, the airflow rate of one air curtain is always greater than that of the other air curtain, and the airflow directions of the two air curtains are kept consistent. The curtain having the greater velocity of the curtain airflow provides support for the curtain airflow having the lesser velocity of the curtain airflow, at least over a range of flow directions and velocities. The air curtain airflow with the small flow rate cannot be diffused too early, and the phenomenon that the flow speed of the airflow is obviously attenuated too early due to the increase of the flow distance is avoided. That is, the relatively high flow rate of the curtain air flow ensures that the direction and speed of the relatively low flow rate of the curtain air flow does not attenuate excessively over a substantial distance, at least adjacent the outlet opening of the curtain device. The distance range at least comprises the upper part of the working area of the range hood (the working area is the upper space of the cooking bench), the area is easy to generate oil smoke diffusion and is a part with serious oil smoke diffusion, and the shielding air curtain in the embodiment keeps the initial state of the air curtain generation to a greater extent in the air curtain direction and the air curtain flow direction in the area, so that the oil smoke can be well shielded in the area. Moreover, after the two air curtains with different flow rates flow for a certain distance, the phenomenon that the two air flows are converged is inevitable. When the two air flows are converged, the two air flows are scattered by each other due to the obvious change of the air flow direction. The directionality, the mobility and the flow speed of the scattered airflow are obviously changed, the airflow can not generate an obvious shielding effect on oil smoke, at the moment, the mixed airflow flows to the lower part of the working area, the position is close to a pot opening and stove flame, and due to the change of various properties of the airflow, the mixed airflow can not generate negative influence on the oil smoke below the working area and in a relatively concentrated flow direction, and can not influence the flame. Further, the air flow is supplemented to the lower part of the working area, and low pressure caused by the suction effect of the range hood is relieved.
EXAMPLE III
As shown in fig. 1 to fig. 3, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air curtain range hood controls the flow condition of the first air curtain 1110 by controlling the relative position of the airflow starting end of the second air curtain 1120 and the airflow starting end of the first air curtain 1110 in the horizontal direction.
Preferably, the air curtain range hood in this embodiment includes an air suction opening for sucking oil smoke, and the air curtain range hood controls the flow condition of the first air curtain 1110 by controlling the airflow starting end of the second air curtain 1120 and/or the relative position between the airflow starting end of the first air curtain 1110 and the air suction opening. For example, when the difference between the relative velocities of the first air curtain 1110 and the second air curtain 1120 at a certain height is constant, the closer the distance in the horizontal direction between the starting ends of the two air curtains is, the closer the position where the two air curtains meet is to the outlet, that is, the smaller the effective distance of the shielding air curtain is. Conversely, the greater the effective distance of the shielding air curtain. Therefore, the technical scheme in the embodiment can control the effective distance of the shielding air curtain by the distance of the starting ends of the two air curtains in the horizontal direction.
Further, when the range hood in this embodiment adjusts the positions of the air outlets, only the position of the first air outlet 111 may be adjusted, only the position of the second air outlet 112 may be adjusted, and both the positions of the second air outlets may be adjusted. When the positions of the second air outlet 112 and the first air outlet 111 are adjusted, not only the effective air supply distance of the shielding air curtain can be adjusted, but also the distance between the shielding air curtain and a user can be adjusted. It is understood that the path of upward diffusion of the soot resembles an inverted parabola. If the distance between the shielding air curtain and the exhaust inlet is short, and the range of the oil smoke diffusing to the surrounding environment is small, the shielding air curtain has a good shielding effect on the oil smoke, and the effective distance of the shielding air curtain airflow is large (the distance between the initial end of the shielding air curtain and the contact position of the oil smoke along the direction of the shielding air curtain airflow). If the distance between the shielding air curtain and the air suction opening is far away, when the range of the oil smoke diffusing towards the surrounding environment is large, the shielding air curtain has a good shielding effect on the oil smoke, and the effective distance of the air flow of the shielding air curtain is small at the moment. In addition, the technical scheme in the embodiment considers that the users have different physical constitutions, and the relative positions of the shielding air curtain and the cooker opening are different when the cooking operation is carried out, so that the distance between the shielding air curtain and the users is adjusted, and the personalized requirements of the users are favorably met.
Example four
As shown in fig. 4 and 5, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air curtain range hood comprises a shell 2 forming an external outline of the air curtain range hood, and the first air outlet 111 of the first air curtain device 11 and/or the second air outlet 112 of the second air curtain device 12 are/is in sliding connection with the shell through a sliding connection assembly. The housing 2 encloses a cavity structure for accommodating other components, and at least a part of at least one of the two air curtain devices in this embodiment is located in the cavity enclosed by the housing 2. At least part of the first air outlet/the second air outlet is limited and supported by the shell. The first air curtain device and the second air curtain device comprise air curtain air ducts for providing working spaces for the air curtain fans, and outlets of the air curtain air ducts are air outlets. At least part of the periphery of the air outlet is connected with the shell in a sliding mode. That is, when the relative position of the air outlet of the air curtain device is adjusted, the relative position of the air curtain device and the air curtain duct formed by the air curtain device is not changed, and only the relative position of the air outlet is changed. In fig. 3, the second air outlet 112 slides to the end of the sliding range far from the air suction opening 3, and the first air outlet 111 is located in the middle of the sliding range. In fig. 2, the first air outlet 111 slides to an end of the sliding range thereof near the air suction opening 3, and the second air outlet 112 is located at a middle portion of the sliding range thereof. When the device is actually used, both can slide correspondingly. The sliding connection assembly at least adjusts the relative position of the two air outlets in the horizontal direction.
Further, the sliding connection direction of the sliding connection assembly in this embodiment at least includes a direction/direction (direction indicated by arrow a) in which the first air outlet and/or the second air outlet point to the air suction opening. Preferably, the direction/direction of the first air outlet and/or the second air outlet pointing to the air suction opening includes a front/rear direction when the air curtain range hood is in a use state.
That is, when the user is in the cooking operation state, the sliding assembly slides at least in the front direction (a' direction shown in the figure) and the rear direction relative to the user (at this time, the shielding air curtain is located between the user and the working area), thereby adjusting the relative distance between the air outlet and the air suction opening. Or, the air outlet position adjustment direction/sliding direction in the technical scheme in this embodiment may be performed along other directions, or adjusted universally. This adjustment requires the sliding connection assembly to be located at a plurality of corresponding locations on the outlet and the housing. The user/control system can adjust not only the front-rear direction of the air outlet but also the left-right direction of the air outlet.
Further, as shown in fig. 5, the sliding connection assembly in this embodiment includes a sliding card 52 respectively disposed on the air outlet and a sliding slot 51 disposed at a corresponding position of the housing 2, so as to achieve sliding connection therebetween. The connection mode has simple structure, can ensure the smoothness of the connection position to a greater degree, and lays a foundation for the universal adjustment of the adjustment direction and the adjustment distance. Further, the sliding mode of the sliding connection assembly in this embodiment is controlled by the control system of the air curtain range hood and/or controlled by a user. Preferably, the sliding manner includes: sliding distance and/or sliding direction and/or sliding timing and/or sliding rate. Further preferably, at least a portion of the slide/chute is disposed at least one location around the air outlet. The slide card 52 and the slide groove 51 are always in a state of being at least partially matched and connected, and even if the air outlet slides to a limit position, the slide card 52 cannot be separated from the slide groove 51, so that the air outlet is always connected with the shell.
EXAMPLE five
As shown in fig. 6 and 7, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the extending directions of the first air outlet 111 and the second air outlet 112 are matched/parallel; at least part of the first air outlet 111 and/or the second air outlet 112 is in the shape of a strip-shaped hole/strip-shaped slit. Or the profile of the first outlet may be other shapes to match the second outlet.
The second outlet 112 has a dimension in a length direction (left-right direction in fig. 6) greater than that of the first outlet 111. When the user is in the cooking operation state, the front oblique upward direction of the user is the range hood, and the second air outlet is the left-right direction of the user along the length direction of the second air outlet. In the embodiment, the distance in the length direction of the second air curtain (defining the width-crossing direction of the second air curtain) is greater than or equal to the distance in the direction of the first air curtain, so that the second air curtain can effectively block the first air curtain in the direction, and omission is avoided.
Further, the first outlet 111 and the second outlet 112 in this embodiment are arranged in parallel along the length direction thereof (with respect to the left-right direction of the user during cooking). The control effect of the second curtain on the first curtain at each position is consistent and the design is the simplest. The projection of the first air outlet on the side of the air curtain range hood close to the user does not exceed the range of the projection of the second air outlet on the side of the air curtain range hood close to the user.
EXAMPLE six
As shown in fig. 1 and fig. 4, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the distance from the starting end of the first air curtain 1110 to the surface formed by the top end of the air curtain range hood (for example, the position indicated by the uppermost line in fig. 4) is smaller than the distance from the starting end of the second air curtain 1120 to the surface formed by the top end of the air curtain range hood. Preferably, the distance from the first air outlet 111 of the first air curtain device 11 to the surface formed by the top end of the air curtain range hood is smaller than the distance from the second air outlet 112 of the second air curtain device 12 to the surface formed by the top end of the air curtain range hood. This kind of structure accessible realizes to the design of two air outlets relative height.
As shown in fig. 4, the range hood includes a first air outlet 111 for generating a first air curtain 1110 and a second air outlet 112 for generating a second air curtain 1120, the second air outlet 112 is disposed on a side of the first air outlet 111 close to a user, and the first air curtain 1110 and the second air curtain 1120 have different air flow movement rates at the same height. The shielding curtain includes the first curtain 1110 and the second curtain 1120. In this embodiment, the height of the first outlet 111 in the airflow direction of the shielding air curtain is greater than that of the second outlet 112, and the airflow speed of the second air curtain 1120 is greater than that of the first air curtain 1110 at the same height. Because the air curtain airflow inevitably generates the phenomenon of flow performance attenuation along the flow direction, the larger the distance between the air curtain airflow and the air outlet (the initial end of the air curtain airflow) of the corresponding air curtain device is, the more serious the attenuation is, and the flow rate is relatively smaller. The technical scheme in this implementation sets up the relative height of two air outlets into having certain distance along the flow direction of shielding air current for the relative height at the top of two air curtains is different, and then the velocity of flow of the air curtain air current of two air curtains in same high position department is different. According to the technical scheme in the embodiment, even if the flow rates or other flow conditions of the air curtain airflows at the air outlets of the two air curtain devices are the same, the flow rates of the first air curtain and the second air curtain are different at the same height.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An air curtain range hood, which is characterized by comprising:
the first air curtain device is used for generating a first air curtain capable of shielding oil smoke;
the second air curtain device is used for generating a second air curtain which can shield oil smoke and control the flow condition of the first air curtain; at the same elevation, the flow rate of the second curtain is greater than the flow rate of the first curtain.
2. The air curtain range hood according to claim 1, wherein the flow condition comprises a flow rate and/or a flow direction of the air curtain airflow and/or a flow rate at any position in a flow track thereof;
preferably, the second air outlet of the second air curtain device is arranged adjacent to the first air outlet of the first air curtain device towards one side of the edge of the equipment.
3. The air curtain range hood of claim 1, wherein the air curtain range hood controls the flow condition of the first air curtain by controlling the flow condition of the second air curtain;
preferably, the first air curtain and the second air curtain together constitute at least part of a shielding air curtain for shielding oil smoke.
4. The air curtain range hood according to claim 1, wherein the air curtain range hood controls the flow condition of the first air curtain by controlling the relative position of the airflow starting end of the second air curtain and the airflow starting end of the first air curtain;
preferably, the air curtain range hood comprises an air suction opening for sucking oil smoke, and the air curtain range hood controls the flow condition of the first air curtain by controlling the airflow starting end of the second air curtain and/or the relative position between the airflow starting end of the first air curtain and the air suction opening.
5. The air curtain range hood according to claim 1, wherein the air flow directions of the first air curtain and the second air curtain at least at the respective initial ends thereof are parallel/form an included angle;
preferably, said angle is less than 15 °;
preferably, the first air curtain and the second air curtain are at least equal in included angle between the starting ends of the first air curtain and the second air curtain and the vertical direction.
6. The air curtain range hood according to claim 1, wherein the flow direction of the first air curtain and/or the second air curtain at least at the beginning end thereof is adjustable;
preferably, the first air curtain device and/or the second air curtain device comprises a deflectable air deflector arranged to match the air outlet, and the flow direction of the first air curtain and/or the second air curtain at the starting end thereof is controlled by at least the air deflector.
7. The air curtain range hood according to claim 1, wherein the air curtain range hood comprises a housing forming an outer contour thereof, and the first air outlet of the first air curtain device and/or the second air outlet of the second air curtain device are/is slidably connected with the housing through a sliding connection assembly;
preferably, the extending directions of the first air outlet and the second air outlet are matched/parallel;
preferably, at least part of the first air outlet and/or the second air outlet is in a strip-shaped hole/strip-shaped slit shape.
8. The air curtain range hood of claim 1, wherein the first air curtain device and/or the second air curtain device comprises a body, and a first air outlet and/or a second air outlet arranged on the body, and the first air outlet and/or the second air outlet are/is connected with the body in a sliding manner through a sliding connection assembly.
9. The air curtain range hood according to claim 7 or 8, wherein the sliding connection assembly comprises a sliding block/sliding groove respectively arranged on the first air outlet and/or the second air outlet, and a sliding groove/sliding block cooperatively arranged at a corresponding position of the housing/body;
preferably, the sliding mode of the sliding connection assembly is controlled by a control system of the air curtain range hood and/or controlled by a user;
preferably, the sliding manner includes: sliding distance and/or sliding direction and/or sliding timing and/or sliding speed and/or sliding track;
preferably, at least a portion of the slide/chute is disposed at least one location around the air outlet.
10. The air curtain range hood according to any one of claims 1 to 9, wherein the distance from the starting end of the first air curtain to the surface formed by the top end of the air curtain range hood is smaller than the distance from the starting end of the second air curtain to the surface formed by the top end of the air curtain range hood;
preferably, the distance from the first air outlet of the first air curtain device to the surface formed by the top ends of the air curtain range hood is smaller than the distance from the second air outlet of the second air curtain device to the surface formed by the top ends of the air curtain range hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942016.2A CN110836400B (en) | 2018-08-17 | 2018-08-17 | Air curtain range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942016.2A CN110836400B (en) | 2018-08-17 | 2018-08-17 | Air curtain range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110836400A true CN110836400A (en) | 2020-02-25 |
| CN110836400B CN110836400B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810942016.2A Active CN110836400B (en) | 2018-08-17 | 2018-08-17 | Air curtain range hood |
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| Country | Link |
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| CN (1) | CN110836400B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735093A (en) * | 2020-07-23 | 2020-10-02 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530596A (en) * | 2003-03-13 | 2004-09-22 | 富士电机零售设备系统株式会社 | Opening showcases |
| CN201072180Y (en) * | 2007-08-07 | 2008-06-11 | 浙江朗迪集团股份有限公司 | Air curtain generating device of ventilator |
| CN201209905Y (en) * | 2008-05-09 | 2009-03-18 | 裘晓钟 | Air curtain shielding kitchen ventilator |
| CN201917035U (en) * | 2010-12-14 | 2011-08-03 | 金亿翔企业股份有限公司 | Air curtain device |
| CN107702308A (en) * | 2017-10-02 | 2018-02-16 | 广东美的制冷设备有限公司 | Deep bead, air conditioner room unit and air conditioner |
-
2018
- 2018-08-17 CN CN201810942016.2A patent/CN110836400B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530596A (en) * | 2003-03-13 | 2004-09-22 | 富士电机零售设备系统株式会社 | Opening showcases |
| CN201072180Y (en) * | 2007-08-07 | 2008-06-11 | 浙江朗迪集团股份有限公司 | Air curtain generating device of ventilator |
| CN201209905Y (en) * | 2008-05-09 | 2009-03-18 | 裘晓钟 | Air curtain shielding kitchen ventilator |
| CN201917035U (en) * | 2010-12-14 | 2011-08-03 | 金亿翔企业股份有限公司 | Air curtain device |
| CN107702308A (en) * | 2017-10-02 | 2018-02-16 | 广东美的制冷设备有限公司 | Deep bead, air conditioner room unit and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735093A (en) * | 2020-07-23 | 2020-10-02 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
| CN111735093B (en) * | 2020-07-23 | 2022-07-15 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
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| Publication number | Publication date |
|---|---|
| CN110836400B (en) | 2021-08-10 |
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