Air curtain range hood of fresh air system

Abstract

The utility model discloses an air curtain range hood of a fresh air system, which comprises an oil smoke shell, an oil smoke cavity and an air curtain cavity are arranged in the oil smoke shell, and an oil smoke area and an air curtain area positioned on the outer side of the oil smoke area are arranged at the bottom end of the oil smoke shell; the oil smoke area is provided with an oil smoke suction port communicated with the oil smoke cavity, and the air curtain area is provided with an air curtain port communicated with the air curtain cavity; the oil fume assembly comprises an oil fume pipeline and an oil fume fan, the oil fume pipeline is provided with a first communication port and a second communication port, and the first communication port is communicated with the oil fume cavity; and the air curtain assembly comprises an air curtain pipeline and an air curtain fan, the air curtain pipeline is provided with a third communicating opening and a fourth communicating opening, and the third communicating opening communicates with the air curtain cavity. According to the air curtain range hood of the fresh air system, the air curtain cavity can be communicated to the outside through the air curtain pipeline, and the air flow sucked in the air curtain cavity is fresh air introduced by the air curtain pipeline, so that the interference of oil smoke on the air curtain is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially relates to a fresh air system's air curtain range hood. BACKGROUND

[0002] At present, range hood drives fan to produce suction force through internal motor, and the oil fume of oil fume area at the bottom of range hood is sucked into the inside of range hood and is discharged outdoor through oil fume adsorption channel.

[0003] However, the inlet of the air curtain of the existing range hood is directly opened on the shell of the range hood, and the air flow of the air curtain formed in this way is sucked in the kitchen, so the air curtain formed will be disturbed by the oil fume in the kitchen. SUMMARY

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides a fresh air system's air curtain range hood, which can connect the air curtain cavity to the outside through the air curtain pipeline, and the air flow sucked in the air curtain cavity is introduced by the fresh air of the air curtain pipeline, reducing the interference of the oil fume on the air curtain.

[0005] The utility model discloses a fresh air system's air curtain range hood, which can connect the air curtain cavity to the outside through the air curtain pipeline, and the air flow sucked in the air curtain cavity is introduced by the fresh air of the air curtain pipeline, reducing the interference of the oil fume on the air curtain.

[0006] A fresh air system's air curtain range hood, comprising,

[0007] An oil fume shell is provided with an oil fume cavity and an air curtain cavity, and the bottom end of the oil fume shell is provided with an oil fume area and an air curtain area outside the oil fume area; the oil fume area is provided with an oil fume suction port communicated with the oil fume cavity, and the air curtain area is provided with an air curtain port communicated with the air curtain cavity;

[0008] An oil fume assembly includes an oil fume pipeline and an oil fume fan, the oil fume pipeline is provided with a first communication port and a second communication port, and the first communication port is communicated with the oil fume cavity; the oil fume fan is used to guide the oil fume to be introduced through the first communication port and to be discharged through the second communication port;

[0009] An air curtain assembly includes an air curtain pipeline and an air curtain fan, the air curtain pipeline is provided with a third communication port and a fourth communication port, and the third communication port is communicated with the air curtain cavity; the air curtain fan is used to guide the fresh air to be introduced through the fourth communication port and to be introduced into the air curtain cavity through the third communication port, so as to form an air curtain at the air curtain port.

[0010] Further, the second communication port and the fourth communication port are towards the same side of the oil fume shell.

[0011] Further, the oil fume shell is provided with a mounting back plate, and the second and fourth guide openings are both directed to the mounting back plate.

[0012] Further, the oil fume pipeline comprises an oil fume cover, a rear end of the oil fume cover is provided with a mounting opening, and the mounting back plate is covered on the mounting opening to form the oil fume pipeline together with the oil fume cover.

[0013] Further, both sides of the mounting opening are provided with connecting edges, and both side edges of the mounting back plate are connected to the connecting edges.

[0014] Further, a top end of the oil fume shell is provided with an air inlet, and an outer periphery of the air inlet is provided with a sealing edge; and the air curtain pipeline is inserted into the air inlet so that the sealing edge is arranged around an outer peripheral wall of the air curtain pipeline.

[0015] Further, the air curtain fan is mounted in the air curtain cavity, and an air inlet of the air curtain fan is opposite to the air inlet; and the air curtain pipeline is used to abut against a shell of the air curtain fan after being inserted into the air inlet and is arranged around the air inlet of the air curtain fan.

[0016] Further, the oil fume shell is provided with a partition plate arranged in the cavity to divide the cavity into an oil fume cavity located in the middle and an air curtain cavity arranged around the oil fume cavity.

[0017] Further, the oil fume area is provided with the air curtain area on the front side and both sides.

[0018] Further, a bottom end of the oil fume shell is provided with an oil fume groove concave upward so that a peripheral wall of the oil fume groove protrudes from a bottom wall of the cavity, the partition plate is arranged at a top end of the peripheral wall of the oil fume groove and abuts against a top wall of the cavity, and the oil fume opening is arranged on a bottom wall of the oil fume groove.

[0019] In summary, the utility model has the following technical effects:

[0020] The suction force formed by the air curtain fan can guide the fresh air from outdoors into the air curtain pipeline through the fourth guide opening, and then into the air curtain cavity through the third guide opening, so as to be guided out through the air curtain opening to form the air curtain. Since the airflow guided into the air curtain cavity is the fresh airflow from outdoors, the air curtain formed at the air curtain opening is the fresh air curtain. The fresh air is guided into the kitchen while the air curtain is formed, so that the air in the kitchen can be renewed to improve the indoor air environment. The mixed oil fume is prevented from entering the kitchen again, the oil fume extraction effect is better, and the airflow in the kitchen is fresh. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of the utility model;

[0022] Figure 2 is another perspective structure schematic view of the utility model;

[0023] Figure 3 is a structure schematic view of the oil fume shell of the utility model;

[0024] Figure 4 is a sectional view of the utility model;

[0025] Figure 5 is another perspective sectional view of the utility model;

[0026] Figure 6 is another perspective sectional view of the utility model.

[0027] Among them, the meaning of the reference sign is as follows: 10, oil fume shell;11, oil fume port;12, air curtain port;13, oil fume groove;14, air inlet;15, sealing edge;16, oil fume cavity;17, air curtain cavity;18, partition plate;21, oil fume pipeline;211, connecting edge;22, oil fume fan;23, cover plate;31, air curtain pipeline;32, air curtain fan. DETAILED DESCRIPTION

[0028] In order to better understand and implement, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0029] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0031] Reference is made to Figures 1-6The utility model discloses a new trend system's air curtain range hood, including oil fume casing 10, oil fume subassembly and oil fume subassembly, be equipped with oil fume cavity 16 and air curtain chamber 17 in oil fume casing 10, be equipped with oil fume area and air curtain area in the bottom of oil fume casing 10, and air curtain area is located oil fume area's and is located oil fume area outside's air curtain area, and oil fume area is equipped with suction oil fume mouth 11, and air curtain area is equipped with air curtain mouth 12, and suction oil fume mouth 11 is communicated with oil fume cavity 16, and air curtain mouth 12 is communicated with air curtain chamber 17.

[0032] In addition, the oil fume subassembly includes an oil fume pipeline 21 and an oil fume fan 22, which can be arranged in the oil fume pipeline 21 or in the oil fume cavity 16 of the oil fume casing 10. The oil fume pipeline 21 is provided with a first communication port and a second communication port, and the first communication port is communicated with the oil fume cavity 16. The oil fume fan 22 can guide the oil fume to be introduced through the first communication port and to be discharged through the second communication port.

[0033] The air curtain subassembly includes an air curtain pipeline 31 and an air curtain fan 32, which can also be arranged in the air curtain pipeline 31 or in the air curtain cavity 17. The air curtain pipeline 31 is provided with a third communication port and a fourth communication port. The third communication port is communicated with the air curtain cavity 17. The air curtain fan 32 is used to guide the fresh air to be introduced through the fourth communication port and to be introduced into the air curtain cavity 17 through the third communication port, so as to form an air curtain at the air curtain mouth 12.

[0034] Based on the above structure, when the new trend system's air curtain range hood of the utility model is used, the second communication port of the oil fume pipeline 21 is directly penetrated to the outdoor, and the fourth communication port of the air curtain pipeline 31 can also be directly penetrated to the outdoor. When the oil fume extraction action is performed, the oil fume fan 22 and the air curtain fan 32 are started at the same time. In this way, the oil fume fan 22 can form a negative pressure in the oil fume cavity 16, so as to suck the oil fume in the kitchen into the oil fume cavity 16 through the suction oil fume mouth 11, to be introduced into the oil fume pipeline 21 through the first communication port of the oil fume pipeline 21, and to be discharged to the outdoor through the second communication port of the oil fume pipeline 21, so as to discharge the oil fume.

[0035] At the same time, the suction force formed by the air curtain fan 32 can guide the fresh air outside to be introduced into the air curtain pipeline 31 through the fourth communication port, to be introduced into the air curtain cavity 17 through the third communication port, to be discharged to form an air curtain through the air curtain mouth 12 communicated with the air curtain cavity 17. Since the airflow introduced into the air curtain cavity 17 is the fresh airflow introduced from the outdoor, the air curtain formed at the air curtain mouth 12 is a new air curtain. At the same time of forming the air curtain, the fresh air can also be introduced into the kitchen, so that the air in the kitchen can be renewed, and the indoor air environment is improved.

[0036] In addition, if the air flow introduced into the air curtain cavity 17 directly extracts the air inside the kitchen, the oil fume will also be mixed during the use of the range hood, so that the air curtain barrier formed by the air curtain fan 32 drawing into the air curtain cavity 17 and then being discharged through the air curtain opening 12 will also have oil fume, resulting in poor air curtain shielding effect. Therefore, the present application directly forms an air curtain with fresh air, and the air flow is fresh, and the oil fume extraction effect is better.

[0037] Further, in the embodiment, the second and fourth through openings are both directed to the same side of the oil fume shell 10, that is, when the oil fume pipeline 21 and the air curtain pipeline 31 are extended to the outside, only one opening needs to be provided on the side of the kitchen, so that the oil fume pipeline 21 and the air curtain pipeline 31 can be directly extended through the same side, without the need to open on different walls, thereby simplifying the installation process of the fresh air system.

[0038] Specifically, the oil fume shell 10 is further provided with a mounting back plate, and the second and fourth through openings are both directed to the mounting back plate. When the oil fume shell 10 is assembled, the mounting back plate can be mounted to the wall of the kitchen, so that the through openings can be provided on the wall for mounting the back plate. After the mounting back plate is mounted to the wall, the second and fourth through openings of the oil fume pipeline 21 and the air curtain pipeline 31 directed to the mounting back plate are directly discharged, thereby reducing the length of the connection pipes of the oil fume pipeline 21 and the air curtain pipeline 31.

[0039] Further, the oil fume pipeline 21 specifically includes an oil fume cover, and the mounting back plate is covered on the mounting opening at the rear end of the oil fume cover to form the oil fume pipeline 21 together with the oil fume cover, and the oil fume fan 22 is mounted to the oil fume fan 22 through the mounting opening.

[0040] On the basis of the structure, when the oil fume fan 22 is assembled, the mounting back plate can be detached from the mounting opening of the oil fume cover, and then the oil fume fan 22 can be mounted into the oil fume cover through the mounting opening, and then the mounting back plate is covered on the mounting opening of the oil fume cover, so as to form a closed oil fume passage on the inner wall of the oil fume cover. Then, the oil fume shell 10 as a whole can be assembled with the wall through the mounting back plate, and the oil fume pipeline 21 is also assembled through the mounting back plate, and the second through opening of the oil fume pipeline 21 is directly discharged through the pipeline, so that the oil fume fan 22 is convenient to disassemble and clean.

[0041] In addition, since the oil fume pipeline 21 is assembled to the wall through the mounting back plate, the connection surface between the oil fume pipeline 21 and the wall is increased, and the oil fume fan 22 is assembled to the oil fume pipeline 21, so that the shaking of the oil fume fan 22 during operation can be reduced, thereby reducing the wind noise.

[0042] Further, the connecting edges 211 are arranged on both sides of the mounting opening. When the mounting back plate is assembled, the two side edges of the mounting back plate can be connected to the connecting edges 211. In this way, the connecting edges 211 are connected to the side edges of the mounting back plate to achieve assembly by surface-to-surface contact, and the mounting structure is more stable.

[0043] It should be noted that a plurality of threaded holes can be arranged on the connecting edges 211, and connecting through holes can also be arranged on the mounting back plate. Screws or bolts and the like structure are arranged in the connecting through holes, and then screwed into the threaded holes on the connecting edges 211, so as to achieve connection.

[0044] Further, the top end of the oil fume shell 10 is provided with an air inlet 14, and the outer periphery of the air inlet 14 is provided with a sealing edge 15. The air curtain pipeline 31 is inserted into the air inlet 14, so that the sealing edge 15 is arranged around the outer peripheral wall of the air curtain pipeline 31. Since the connection position of the air curtain pipeline 31 and the oil fume shell 10 is prone to air leakage, the sealing edge 15 can be arranged at the position of the air inlet 14. The sealing edge 15 is arranged in a cylindrical assembly structure. After the air curtain pipeline 31 is inserted into the air inlet 14, the sealing edge 15 is wrapped around the connection position to achieve sealing and reduce air leakage.

[0045] Of course, a sealing rubber sleeve or a sealing rubber ring and the like sealing structure can also be clamped between the sealing edge 15 and the outer wall of the air curtain pipeline 31 to achieve further sealing and reduce air leakage.

[0046] Further, the air curtain fan 32 in the embodiment can be installed in the air curtain cavity 17, and the air inlet of the air curtain fan 32 is opposite to the air inlet 14. Specifically, the air curtain pipeline 31 can abut against the shell of the air curtain fan 32 after being inserted into the air inlet 14, and is arranged around the air inlet of the air curtain fan 32. That is to say, the fresh air introduced by the air curtain pipeline 31 can be concentrated to the air inlet of the air curtain fan 32 and then introduced into the air curtain cavity 17, so as to reduce airflow dispersion and form a larger wind speed air curtain airflow barrier.

[0047] Of course, since the air curtain pipeline 31 abuts against the shell of the air curtain fan 32 after being inserted into the air inlet 14, that is, the bottom end of the air curtain pipeline 31 can be supported by the shell structure of the air curtain fan 32, so that the air curtain pipeline 31 is more stable after assembly.

[0048] Further, the oil fume shell 10 is provided with a partition plate 18, which is arranged in the cavity to divide the cavity into the oil fume cavity 16 in the middle and the air curtain cavity 17 arranged around the oil fume cavity 16. Specifically, the oil fume shell is provided with a cavity, and the cavity is provided with a partition plate 18, which is arranged in the cavity to divide the cavity into the oil fume cavity 16 in the middle and the air curtain cavity 17 arranged around the oil fume cavity 16. That is, the air curtain cavity 17 is arranged around the oil fume cavity 16 and is blocked by the partition plate 18.

[0049] Since the cavity in the oil fume shell is blocked by the annular partition plate 18, the oil fume cavity 16 is formed in the space surrounded by the annular partition plate 18, and the space surrounded by the partition plate 18 and the inner wall of the cavity is the air curtain cavity 17, which is annularly arranged around the oil fume cavity 16 to block the oil fume cavity 16 and the air curtain cavity 17. The oil fume entering the oil fume inlet 11 is completely blocked by the airflow in the air curtain cavity 17, preventing the oil fume in the oil fume cavity 16 from entering the air curtain cavity 17 and being discharged. In this way, the airflow of the air curtain formed by the air curtain outlet 12 is relatively clean, reducing the influence of oil fume on the air curtain.

[0050] In addition, since the air curtain cavity 17 is annular, the air curtain fan 32 is arranged in the air curtain cavity 17, so that one air curtain fan 32 can guide the airflow to flow in the annular air curtain cavity 17. Only one air curtain fan 32 is needed to achieve the air curtain airflow discharged from both sides, reducing the cost of forming the air curtain, and the annular airflow is more gentle, so that the air curtain speed formed by the air curtain outlet 12 is stable.

[0051] Further, the front side and the left and right sides of the oil fume area are provided with air curtain areas.

[0052] That is, when the air curtain fan 32 is started, the airflow introduced through the air inlet 14 can be partially discharged through the air curtain outlets 12 on both sides. In this way, the air curtain cavity 17 has air curtain outlets 12 on both sides to discharge fresh air from both sides, so that air curtain areas can be formed on both sides of the oil fume area. In addition, since the air curtain cavity 17 is annular, and the front side of the oil fume area also has an air curtain area, part of the airflow in the air curtain cavity 17 will flow to the air curtain outlet 12 at the front end and be discharged at the front side of the oil fume shell 10. In this way, the air curtain is discharged at the front side and the left and right sides of the oil fume shell 10, forming a semi-enclosed air curtain area. Since the rear end of the oil fume extractor is generally mounted on a wall, the oil fume is limited in the semi-enclosed air curtain area after the oil fume extractor is assembled, and the wall can form a barrier at the rear, so that the oil fume can be concentrated in the middle position and discharged, and the oil fume extraction effect is better.

[0053] Further, the bottom end of the oil fume shell is provided with an upwardly recessed oil fume groove 13, so that the peripheral wall of the oil fume groove 13 protrudes from the bottom wall of the cavity, the partition plate 18 is arranged at the top end of the peripheral wall of the oil fume groove 13 and abuts against the top wall of the cavity, and the oil fume port 11 is arranged at the bottom wall of the oil fume groove 13. In this way, when the oil fume is sucked, the oil fume can be concentrated in the oil fume groove 13, and the oil fume port 11 at the bottom wall of the oil fume groove 13 enters the oil fume cavity 16, so that the position of the oil fume port 11 at the bottom end of the oil fume shell is higher than that of the air curtain port 12, that is, the oil fume port 11 and the air curtain port 12 are not in the same plane, so that the oil fume entering the oil fume port 11 can be blocked by the inner peripheral wall of the oil fume groove 13, reducing the adhesion of the oil fume to the air curtain port 12.

[0054] The technical means disclosed by the utility model scheme is not only limited to the technical means disclosed by the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A fresh air system's air curtain range hood, characterized by , including, The oil fume shell is provided with an oil fume cavity and a wind curtain cavity, and the bottom end of the oil fume shell is provided with an oil fume area and a wind curtain area outside the oil fume area; the oil fume area is provided with an oil fume inlet communicated with the oil fume cavity, and the wind curtain area is provided with a wind curtain inlet communicated with the wind curtain cavity; The oil fume assembly comprises an oil fume pipeline and an oil fume fan, the oil fume pipeline is provided with a first communication port and a second communication port, the first communication port is communicated with the oil fume cavity; the oil fume fan is used for guiding oil fume to be introduced through the first communication port and introduced out through the second communication port; The wind curtain assembly comprises a wind curtain pipeline and a wind curtain fan, the wind curtain pipeline is provided with a third communication port and a fourth communication port, the third communication port is communicated with the wind curtain cavity; the wind curtain fan is used for guiding fresh air to be introduced through the fourth communication port and introduced into the wind curtain cavity through the third communication port, so as to form a wind curtain at the wind curtain inlet.

2. The fresh air system's curtain range hood according to claim 1, characterized in that The second communication port and the fourth communication port are located on the same side of the oil fume shell.

3. The fresh air system's curtain range hood according to claim 2, characterized in that The oil fume shell is provided with a mounting back plate, and the second communication port and the fourth communication port are both located towards the mounting back plate.

4. The fresh air system's curtain range hood according to claim 3, characterized in that, The oil fume pipeline comprises an oil fume cover, the rear end of the oil fume cover is provided with a mounting port, and the mounting back plate is covered on the mounting port to form the oil fume pipeline together with the oil fume cover; the oil fume fan is mounted on the oil fume fan through the mounting port.

5. The fresh air system's curtain range hood according to claim 4, characterized in that, Both sides of the mounting port are provided with connecting edges; and both side edges of the mounting back plate are connected to the connecting edges.

6. The fresh air system's air curtain range hood according to any one of claims 1-5, characterized in that The top end of the oil fume shell is provided with an air inlet, and the outer periphery of the air inlet is provided with a sealing edge; the wind curtain pipeline is inserted into the air inlet, so that the sealing edge surrounds the outer peripheral wall of the wind curtain pipeline.

7. The fresh air system's curtain range hood according to claim 6, characterized in that The wind curtain fan is mounted on the wind curtain cavity, and the air inlet of the wind curtain fan is opposite to the air inlet; the wind curtain pipeline is used for abutting against the shell of the wind curtain fan after being inserted into the air inlet and surrounding the air inlet of the wind curtain fan.

8. The fresh air system's air curtain range hood according to any one of claims 1-5, characterized in that The oil fume shell is provided with a partition plate, and the partition plate is annularly arranged in the cavity to divide the cavity into the oil fume cavity located in the middle and the wind curtain cavity annularly arranged outside the oil fume cavity.

9. The fresh air system's curtain range hood according to claim 8, characterized in that The front side and both sides of the oil fume area are provided with the wind curtain area.

10. The fresh air system's curtain range hood according to claim 8, characterized in that The bottom end of the oil fume shell is provided with an oil fume groove concave upwards, so that the peripheral wall of the oil fume groove protrudes from the bottom wall of the cavity, the partition plate is arranged at the top end of the peripheral wall of the oil fume groove and abuts against the top wall of the cavity; and the oil fume inlet is arranged on the bottom wall of the oil fume groove.

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