Fume collection hood and range hood

Abstract

The present invention discloses a smoke collection hood and a smoke hood. The smoke collection hood includes a hood body, a swirling air curtain generating unit, and an oil screen unit. The swirling air curtain generating unit is disposed on the lower end surface of the hood body. The air curtain of the swirling air curtain generating unit is configured to swirl and collect overflowing smoke. The axial direction of the air curtain is horizontal and aligns with the length direction of the left and right ends of the hood body. The oil screen unit is disposed in the middle of the length direction of the swirling air curtain generating unit. The oil screen unit is configured to horizontally draw in the swirling smoke flows on the left and right sides. The smoke collection hood of the present invention achieves the effect of enhancing oil fume suction performance and reducing the amount of oil fume overflow.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen equipment, in particular to a smoke collecting hood.

[0002] The present invention also relates to a range hood comprising the above-mentioned fume collecting hood. Background Art

[0003] Range hoods are the primary means of collecting indoor oil fumes in the kitchen. When traditional range hoods inhale air, their suction range is a hemispherical area, and gases from all directions are indiscriminately inhaled. With this type of suction method, the air flow rate at the suction port is relatively high, while the air flow rate at positions far from the suction port decreases rapidly as the distance from the suction port increases. Especially for conventional top-mounted range hoods, the suction port is set at the bottom center of the smoke hood. Then, when suctioning, the suction speed at the side positions of the smoke hood far from the center will be very low, resulting in oil fumes easily overflowing in the case of large amounts of smoke. In addition, it is very susceptible to interference from external factors, such as the movement of people, the operation of fans or air conditioners, etc., which can disturb the airflow, causing oil fumes or pollutants to escape with the flow of disturbed airflow, resulting in poor smoke collection and smoking effects of the range hood. Summary of the Invention

[0004] The object of the present invention is to provide a fume collecting hood, which has the advantages of enhancing the oil fume absorbing performance and reducing the overflow of oil fume.

[0005] A smoke collecting hood of the present invention includes a hood body, a swirling air curtain generating portion and an oil net portion, wherein the swirling air curtain generating portion is arranged on the lower end surface of the hood body, and the air curtain of the swirling air curtain generating portion is configured to swirl and gather the smoke overflowing from the outer end of the hood, the axial direction of the air curtain is horizontal and is the same as the length direction of the left and right ends of the hood body, and the oil net portion is arranged in the middle of the length direction of the swirling air curtain generating portion, and the oil net portion is configured to horizontally suck the swirling smoke flow on the left and right sides.

[0006] A smoke collecting hood of the present invention may also be:

[0007] The swirling air curtain generating part includes an arc-shaped air curtain guide plate, an air curtain fan device and a strip-shaped air curtain nozzle for spraying air toward the inner curved surface of the arc-shaped air curtain guide plate. The arc-shaped air curtain guide plate is arranged at the lower end of the cover body. The arc-shaped trend of the arc-shaped air curtain guide plate is from the front upper end to the rear lower end of the bottom of the cover body. The oil net part is arranged in the middle of the arc-shaped air curtain guide plate. The air curtain fan device is arranged on the cover body. The strip-shaped air curtain nozzle is connected to the air curtain fan device and is arranged on the lower surface of the front end of the arc-shaped air curtain guide plate. The nozzle of the strip-shaped air curtain nozzle faces the inner curved surface of the arc-shaped air curtain guide plate.

[0008] The oil net part is in a protruding box shape, and honeycomb holes for horizontally sucking swirling smoke flow are provided on the left and right opposite sides of the oil net part.

[0009] The connecting surface between the oil net portion and the arc-shaped air curtain guide plate is an arc-shaped curved surface, and the curvature of the arc-shaped curved surface is the same as the curvature of the inner arc-shaped surface of the arc-shaped air curtain guide plate.

[0010] The strip-shaped air curtain nozzle includes a left strip-shaped nozzle and a right strip-shaped nozzle, and the oil net portion is arranged between the left strip-shaped nozzle and the right strip-shaped nozzle.

[0011] The air curtain fan device is arranged between the cover body and the arc-shaped air curtain guide plate, and the top of the cover body is provided with an air hole for the air curtain fan device to exhaust air.

[0012] The front end of the arc-shaped air curtain deflector is higher than the rear end, the front end of the arc-shaped air curtain deflector faces downward, and the rear end of the arc-shaped air curtain deflector faces forward.

[0013] The smoke collection hood of the present invention has the following advantages over the prior art: since it includes a hood body, a swirling air curtain generating unit, and an oil net unit, the swirling air curtain generating unit is arranged on the lower end surface of the hood body, and the air curtain of the swirling air curtain generating unit is configured to gather overflowing smoke in a swirling suction manner. The axial direction of the air curtain is horizontal and is the same as the length direction of the left and right ends of the hood body. The oil net unit is arranged in the middle of the length direction of the swirling air curtain generating unit, and the oil net unit is configured to horizontally suck the swirling smoke flow on the left and right sides. In this way, when in operation, the swirling air curtain generating unit generates a swirling air curtain. Due to the swirling suction effect, the negative pressure in the horizontal position expands outward toward the left and right ends of the hood body, generating a suction force to gather smoke, thereby reducing the probability of oil smoke overflowing from the left and right ends. At the same time, the air curtain airflow and the swirling airflow form a channel that strongly draws in the oil smoke under the hood body, thereby accelerating the intake of external oil smoke. At the same time, under the action of the horizontal suction force on the left and right sides of the oil mesh, the swirling smoke flow on the left and right sides forms a spiral airflow which is sucked into the oil mesh until it is discharged through the main engine exhaust channel, thereby achieving the effect of enhancing the oil fume absorption performance and reducing the amount of oil fume overflow.

[0014] The present invention also aims to provide a range hood comprising a main unit and the above-mentioned fume hood, wherein the fume hood is arranged at the lower end of the main unit, and the fume exhaust passage of the main unit is connected to the oil net portion of the fume hood.

[0015] The range hood of the present invention has the advantage over the prior art in that, since it includes the above-mentioned fume collecting hood, it can reduce the amount of oil fume overflow, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a smoke collecting hood of the present invention.

[0017] Figure 2 The figure is a schematic diagram of the three-dimensional structure of a smoke collecting hood according to the present invention when viewed from above.

[0018] Figure 3 The present invention is a schematic diagram of the installation position of an air curtain fan device of a smoke collection hood.

[0019] Figure 4 The figure is a schematic diagram of the rear three-dimensional structure of a smoke collecting hood of the present invention.

[0020] Figure 5 The figure is a side structural schematic diagram of a smoke collecting hood of the present invention.

[0021] Figure 6 The figure is a schematic top view of the three-dimensional structure of a smoke collecting hood of the present invention.

[0022] Description of Figure Number

[0023] 1. Cover body; 11. Air holes; 2. Rotating air curtain generating unit; 21. Curved air curtain guide plate; 22. Air curtain fan device; 23. Strip air curtain nozzle; 3. Oil mesh unit; 31. Honeycomb holes; 4. Main unit. DETAILED DESCRIPTION

[0024] The following is combined with the accompanying drawings Figures 1 to 6 A smoke collecting hood of the present invention is described in further detail.

[0025] A smoke hood of the present invention, please refer to Figures 1 to 6 The relevant figures include a cover body 1, a rotary air curtain generating part 2 and an oil net part 3 for communicating with the smoke exhaust channel of the main unit of the range hood.

[0026] The hood 1 is a rectangular box with an opening extending downward. The swirling air curtain generator 2 is located on the lower end of the hood 1. The air curtain of the swirling air curtain generator 2 is configured to swirl and collect smoke escaping from the outer end of the hood 1. In the swirling state, the axial direction of the air curtain is horizontal and aligns with the length of the left and right ends of the hood 1.

[0027] The oil net portion 3 is arranged in the middle of the length direction of the swirling air curtain generating portion 2, and the oil net portion 3 is configured to horizontally suck the swirling flue gas flows on the left and right sides.

[0028] Working Principle: When in operation, the swirling air curtain generating unit 2 generates a swirling air curtain. Due to the swirling suction effect, the negative pressure in the horizontal position expands outward toward the left and right ends of the cover body 1, generating a suction force that gathers the smoke and reduces the probability of oil smoke overflowing from the left and right ends. At the same time, the air curtain airflow and the swirling airflow form a channel that strongly draws in the oil smoke under the cover body 1, thereby accelerating the intake of external oil smoke. At the same time, under the action of the horizontal suction force on the left and right sides of the oil mesh unit 3, the swirling smoke flows on the left and right sides form spiral airflows that are sucked into the oil mesh unit 3 until they are discharged through the main unit exhaust channel, thereby achieving the effect of enhancing the oil smoke suction performance and reducing the amount of oil smoke overflow.

[0029] A smoke hood of the present invention, please refer to Figures 1 to 6 The relevant figures can also be based on the previous technical solution: the swirling air curtain generating part 2 includes an arc-shaped air curtain guide plate 21, an air curtain fan device 22 and a strip air curtain nozzle 23 for spraying air toward the inner curved surface of the arc-shaped air curtain guide plate 21.

[0030] The curved air curtain deflector 21 is disposed at the lower end of the housing 1. The curved air curtain deflector 21 extends from the upper front end to the lower rear end of the bottom of the housing 1. The curved air curtain deflector 21 can be formed by bending a single plate or by joining two or more plates. Those skilled in the art can select the method for forming the curved air curtain deflector 21 based on actual needs.

[0031] The oil net part 3 is arranged in the middle of the arc-shaped air curtain guide plate 21. The middle of the arc-shaped air curtain guide plate 21 is provided with a through hole for communicating with the smoke exhaust channel of the main machine. The oil net part 3 is arranged at the through hole position and communicated with the through hole.

[0032] The air curtain fan device 22 is arranged on the cover body 1, and the strip air curtain nozzle 23 is connected to the air curtain fan device 22. The strip air curtain nozzle 23 is arranged on the lower surface of the front end of the arc-shaped air curtain guide plate 21. The strip air curtain nozzle 23 blows air toward the surface of the inner curved surface of the strip air curtain nozzle 23. Due to the wall attachment effect, the airflow will flow along the inner curved surface of the arc-shaped air curtain guide plate 21, and rotate and reflux when it flows to the rear side of the arc-shaped air curtain guide plate 21, forming an up and down swirling airflow, thereby achieving the effect of swirling and gathering the overflowing smoke.

[0033] A smoke hood of the present invention, please refer to Figures 1 to 6The relevant figures, based on the previous technical solution, can also be configured as follows: the oil screen 3 is a protruding box-shaped unit, with honeycomb holes 31 on opposite sides of the oil screen 3 for horizontally drawing in the swirling smoke flow, thereby achieving horizontal suction. Furthermore, since the oil screen 3 lacks a smoke intake hole at the bottom, this prevents oil droplets from dripping onto the stovetop. Preferably, the bottom of the oil screen 3 is a removable transparent box made of a material such as glass or transparent plastic, allowing the user to monitor the amount of oil droplets within the box.

[0034] A smoke hood of the present invention, please refer to Figures 1 to 6 In the relevant figures, based on the previous technical solution, another embodiment is possible: the connecting surface between the oil mesh portion 3 and the curved air curtain deflector 21 is a curved surface, the curvature of which is the same as the curvature of the inner curved surface of the curved air curtain deflector 21. The strip-shaped air curtain nozzles 23 include left and right strip nozzles, and the oil mesh portion 3 is positioned between the left and right strip nozzles. This allows the oil mesh portion 3 to divide the smoke collection area of ​​the hood body 1 into two independent areas, namely the left and right smoke collection areas, thereby achieving the effect of independent suction from the left and right sides of the oil mesh portion 3. Furthermore, the area of ​​the left and right sides of the oil mesh portion 3 is increased, creating conditions for the installation of more honeycomb holes 31, thereby increasing the amount of oil smoke suction.

[0035] A smoke hood of the present invention, please refer to Figures 1 to 6 The relevant figures, based on the previous technical solution, can also be: the air curtain fan device 22 is hidden between the cover body 1 and the curved air curtain guide plate 21, and the top of the cover body 1 is provided with an air hole 11 for the air curtain fan device 22 to extract air, thereby achieving the effect of blowing air to the strip air curtain nozzle 23. Of course, the air curtain fan device 22 is not limited to being hidden between the cover body 1 and the curved air curtain guide plate 21. The air curtain fan device 22 can also be set on the top or side outer surface of the cover body 1. Those skilled in the art can select the installation position of the air curtain fan device 22 according to actual needs.

[0036] A smoke hood of the present invention, please refer to Figures 1 to 6 The relevant figures can also be such that, based on the previous technical solution, the height of the front end of the curved air curtain guide plate 21 is higher than the height of the rear end, the front end of the curved air curtain guide plate 21 faces downward, and the rear end of the curved air curtain guide plate 21 faces forward, so that the best rotary suction effect is achieved.

[0037] The present invention also provides a range hood, please refer to Figures 1 to 6 The relevant figures include the host 4 and the smoke hood mentioned above. The smoke hood is arranged at the lower end of the host 4. The smoke exhaust channel of the host 4 is connected to the oil net part 3 of the smoke hood, and the air curtain fan device 22 is connected to the control switch of the host.

[0038] A range hood of the present invention includes the above-mentioned fume collecting hood, thereby achieving the effects of enhancing the fume suction performance and reducing the amount of fume overflow, thereby improving the user experience.

[0039] Of course, a fume hood of this embodiment is not limited to being set on a range hood. A fume hood of this embodiment can also be set on an integrated stove. Those skilled in the art can choose to set the fume hood on a range hood or an integrated stove according to actual needs.

[0040] The above description only illustrates several specific embodiments of the present invention, but it cannot be regarded as the scope of protection of the present invention. Any equivalent changes or modifications or proportional enlargement or reduction made according to the design spirit of the present invention should be considered to fall within the scope of protection of the present invention.

Claims

1. A smoke hood, characterized in that: The invention comprises a cover body (1), a rotary air curtain generating part (2) and an oil net part (3), wherein the rotary air curtain generating part (2) is arranged on the lower end surface of the cover body (1), and the air curtain of the rotary air curtain generating part (2) is configured to gather the overflowed smoke in a rotary suction manner, wherein the smoke includes the smoke overflowed from the left and right sides of the cover body (1), and the axial direction of the air curtain is horizontal and is the same as the length direction of the left and right ends of the cover body (1). The oil net part (3) is arranged in the middle of the length direction of the rotary air curtain generating part (2), and the oil net part (3) is configured to horizontally suck the rotary smoke flow on the left and right sides; The swirling air curtain generating portion (2) comprises an arc-shaped air curtain guide plate (21), an air curtain fan device (22) and a strip-shaped air curtain nozzle (23) for spraying air toward the inner arc surface of the arc-shaped air curtain guide plate (21), the arc-shaped air curtain guide plate (21) is arranged at the lower end of the cover body (1), the arc-shaped trend of the arc-shaped air curtain guide plate (21) is from the front upper end to the rear lower end of the bottom of the cover body (1), the oil net portion (3) is arranged in the middle of the arc-shaped air curtain guide plate (21), the air curtain fan device (22) is arranged on the cover body (1), the strip-shaped air curtain nozzle (23) is connected to the air curtain fan device (22) and is arranged on the front lower surface of the arc-shaped air curtain guide plate (21), and the nozzle of the strip-shaped air curtain nozzle (23) is toward the inner arc surface of the arc-shaped air curtain guide plate (21); The air curtain fan device (22) is arranged between the cover body (1) and the arc-shaped air curtain guide plate (21), and the top of the cover body (1) is provided with an air hole (11) for the air curtain fan device (22) to extract air; The front end of the arc-shaped air curtain guide plate (21) is higher than the rear end, the front end of the arc-shaped air curtain guide plate (21) faces downward, and the rear end of the arc-shaped air curtain guide plate (21) faces forward; The left side wall and the right side wall of the cover body (1) are respectively provided with a first arc-shaped avoidance opening and a second arc-shaped avoidance opening that match the outer arc surface of the arc-shaped air curtain guide plate (21); the outer arc surface of the left end of the arc-shaped air curtain guide plate (21) is connected to the first arc-shaped avoidance opening, and the outer arc surface of the right end of the arc-shaped air curtain guide plate (21) is connected to the second arc-shaped avoidance opening.

2. A smoke hood according to claim 1, characterized in that: The oil net portion (3) is in a protruding box shape, and honeycomb holes for horizontally sucking swirling smoke flow are provided on the left and right opposite sides of the oil net portion (3).

3. A smoke collection hood according to claim 2, characterized in that: The connecting surface between the oil screen portion (3) and the arc-shaped air curtain guide plate (21) is an arc-shaped curved surface, and the curvature of the arc-shaped curved surface is the same as the curvature of the inner arc-shaped surface of the arc-shaped air curtain guide plate (21).

4. The smoke collecting hood according to claim 2, characterized in that: The strip-shaped air curtain nozzle (23) comprises a left strip-shaped nozzle and a right strip-shaped nozzle, and the oil net portion (3) is arranged between the left strip-shaped nozzle and the right strip-shaped nozzle.

5. A range hood, characterized in that: It comprises a main unit and a smoke collecting hood according to any one of claims 1 to 4, wherein the smoke collecting hood is arranged at the lower end of the main unit, and the smoke exhaust passage of the main unit is connected to the oil net portion (3) of the smoke collecting hood.

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