Anti-oil-dripping range hood
By setting upper and lower oil guide plates in the range hood air cabinet and using a 'V'-shaped design to guide condensed grease, the problem of vertical grease dripping is solved, and the cleanliness and safety of the range hood are improved.
Patent Information
- Application Number
- CN202421458833.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In traditional range hoods, condensed grease can easily drip vertically onto the oil filter on the smoke outlet or the stove, causing equipment blockage, pollution, and safety hazards.
An upper oil guide plate and a lower oil guide plate are installed in the air cabinet. The V-shaped design is used to diagonally guide the condensed grease to the back of the front plate or the rear plate to avoid vertical dripping.
Effectively prevent grease dripping, keep the range hood clean and hygienic, reduce cleaning difficulty and safety hazards, and improve equipment performance.
Smart Images
Figure CN222887409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil fume machine, in particular to an oil drip prevention oil fume machine. Background Art
[0002] The oil fume machine is an essential electrical appliance in modern kitchens, used to suck the oil fume generated during cooking, thereby keeping the kitchen air clean and healthy. With the changes in cooking habits and the improvement of people's requirements for the quality of life, the design and performance of the oil fume machine are constantly improving. However, in actual use, there are still some defects that cannot be ignored in the traditional oil fume machine in dealing with the problem of condensed grease in the air cabinet, especially the phenomenon of grease dripping.
[0003] In the design of the existing oil fume machine, the air cabinet is usually set above the smoke suction port. When the impeller works, it will generate a strong suction force to suck the oil fume from the smoke suction port and conduct a preliminary filtration through the oil filter net. As the oil fume rises, the decrease in temperature causes part of the oil fume to condense into grease in the air cabinet, and these greases usually adhere to the top plate and the inner wall surface of the air cabinet. However, due to the action of gravity, these condensed greases tend to drip vertically.
[0004] Since there is no effective diversion path for the condensed grease in the air cabinet, the grease will naturally drip downward. In the traditional design, the condensed grease may directly fall from the top plate and the side plate of the air cabinet onto the oil filter net on the smoke suction port. As the grease accumulates, the oil filter net may be blocked by the grease, affecting the normal adsorption function of the oil fume machine. In addition, some greases may pass through the oil filter net and directly fall onto the stove below. This will not only pollute the kitchen environment, increase the difficulty of cleaning, but also pose a safety hazard. Especially during high-temperature cooking, the dripping of grease may cause a fire risk.
[0005] In addition, the vertical dripping of the condensed grease will not only pollute the inside of the oil fume machine, increase the complexity of maintenance, but also leave oil stains in the working area of the oil fume machine, affecting the overall hygiene of the kitchen. The dripping grease may breed bacteria and affect food safety. Therefore, it is necessary to make further improvements. Summary of the Utility Model
[0006] The purpose of the utility model is to overcome the defects of the existing technology and provide an oil drip prevention oil fume machine with a simple structure, convenient use, which can effectively prevent the condensed grease from vertically dripping onto the oil filter net or the stove on the smoke suction port, thereby significantly improving the hygiene performance and safety of the oil fume machine.
[0007] The purpose of the present utility model is achieved in the following way: An oil-drip-proof range hood, which includes a smoke collecting cavity. A smoke suction port is opened at the bottom of the smoke collecting cavity. A wind cabinet is arranged at the top of the smoke collecting cavity. A volute is installed in the wind cabinet. An impeller driven by a motor is arranged in the volute. When the impeller rotates, a negative pressure is generated to adsorb oil fumes from the smoke suction port. An upper oil guide plate is installed in the wind cabinet. The upper oil guide plate is obliquely installed between the top plate and the front plate of the wind cabinet and is within the upward orthographic projection range of the smoke suction port. The upper oil guide plate obliquely guides the grease condensed on the top plate to the back of the front plate and flows downward along the back of the front plate.
[0008] A lower oil guide plate is arranged to cover the bottom of the volute. The lower oil guide plate is inclined towards the rear plate of the wind cabinet. The oil outlet end of the lower oil guide plate extends outside the upward orthographic projection range of the smoke suction port.
[0009] Further: The cross-section of the upper oil guide plate is arranged in a "V" shape. One free end of it is connected to the top plate, and the other free end is connected to the front plate. An upper oil drain port is arranged at the lowest part of the upper oil guide plate. The upper oil drain port extends outside the upward orthographic projection range of the smoke suction port.
[0010] Further: An extension plate is connected to the upper oil drain port. The extension plate is located below the upper oil drain port and contacts the back of the front plate.
[0011] Further: The cross-section of the lower oil guide plate is arranged in a "V" shape. One free end of it is connected to the volute, and the other free end extends out of the front end of the volute.
[0012] Further: A front baffle extends upward on one side of the lower oil guide plate where it extends out of the front end of the volute.
[0013] Further: A lower oil drain port is arranged at the lowest part of the lower oil guide plate. The lower oil drain port extends outside the upward orthographic projection range of the smoke suction port.
[0014] The beneficial effects of the present utility model are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved.
[0015] 2. The present utility model is provided with an upper oil guide plate and a lower oil guide plate in the wind cabinet. The upper oil guide plate is obliquely installed between the top plate and the front plate of the wind cabinet. Through the "V" shape design, the grease condensed on the top plate can be effectively guided to the back of the front plate, preventing the grease from vertically dripping onto the oil filter net on the smoke suction port or the stove top.
[0016] 3. The present utility model is provided with a lower oil guide plate covering the bottom of the volute in the wind cabinet. The lower oil guide plate is inclined, so that the grease condensed on the bottom of the volute can smoothly flow towards the rear plate direction and is discharged through the lower oil drain port outside the upward orthographic projection range of the smoke suction port, also achieving the purpose of preventing the grease from vertically dripping onto the oil filter net on the smoke suction port or the stove top.
[0017] 4. Guided by the upper oil guide plate and the lower oil guide plate, the condensed grease is effectively collected and discharged, avoiding grease dripping and contaminating the interior of the range hood and the kitchen stove. This design significantly improves the cleaning performance of the range hood and reduces the hygiene hazards caused by grease accumulation. Description of the Drawings
[0018] Figure 1 This is an effect diagram of the range hood in the closed state of the present utility model.
[0019] Figure 2 This is an effect diagram of the range hood in the open state of the present utility model.
[0020] Figure 3 This is a structural cross-sectional view of the present utility model.
[0021] Figure 4 This is a schematic structural diagram of the front plate and side plates of the hidden air cabinet in the present utility model after being removed.
[0022] Figure 5 This is a schematic structural diagram of the upper oil guide plate in the present utility model.
[0023] Figure 6 This is a schematic structural diagram of the lower oil guide plate in the present utility model.
[0024] Description of the Reference Numerals:
[0025] 1 - Smoke collecting cavity; 2 - Smoking port; 3 - Air cabinet; 31 - Top plate; 32 - Front plate; 33 - Rear plate; 4 - Volute; 5 - Motor; 6 - Impeller; 7 - Upper oil guide plate; 71 - Upper oil discharge port; 72 - Extension plate; 8 - Lower oil guide plate; 81 - Front baffle; 82 - Lower oil discharge port. Detailed Embodiment
[0026] The following further specifically describes the present utility model with reference to the drawings. An oil-drip-proof range hood includes a smoke collecting cavity 1. A smoking port 2 is opened at the bottom of the smoke collecting cavity 1. An air cabinet 3 is arranged at the top of the smoke collecting cavity 1. A volute 4 is installed in the air cabinet 3. An impeller 6 driven by a motor 5 is arranged in the volute 4. When the impeller 6 rotates, a negative pressure is generated to adsorb oil fume from the smoking port 2. An upper oil guide plate 7 is installed in the air cabinet 3. The upper oil guide plate 7 is obliquely installed between the top plate 31 and the front plate 32 of the air cabinet 3 and is within the upward orthographic projection range of the smoking port 2. The upper oil guide plate 7 obliquely guides the grease condensed on the top plate 31 to the back of the front plate 32 and flows downward along the back of the front plate 32;
[0027] The bottom of the volute 4 is provided with a lower oil guide plate 8 covering it. The lower oil guide plate 8 is inclined towards the rear plate 33 of the air cabinet 3. The oil outlet end of the lower oil guide plate 8 extends outside the upward orthographic projection range of the smoking port 2.
[0028] In one embodiment, the upper oil guide plate 7 has a "V"-shaped cross-section. One free end thereof is connected to the top plate 31, and the other free end is connected to the front plate 32. An upper oil drain port 71 is provided at the lowest part of the upper oil guide plate 7, and the upper oil drain port 71 extends outside the upward orthographic projection range of the smoke suction port 2.
[0029] In one embodiment, an extension plate 72 is connected to the upper oil drain port 71. The extension plate 72 is located below the upper oil drain port 71 and contacts the back surface of the front plate 32.
[0030] In one embodiment, the lower oil guide plate 8 has a "V"-shaped cross-section. One free end thereof is connected to the volute 4, and the other free end extends out of the front end of the volute 4.
[0031] In one embodiment, a front baffle 81 extends upward on the side where the lower oil guide plate 8 extends out of the front end of the volute 4.
[0032] In one embodiment, a lower oil drain port 82 is provided at the lowest part of the lower oil guide plate 8, and the lower oil drain port 82 extends outside the upward orthographic projection range of the smoke suction port 2.
[0033] Working principle: The core structure of this range hood includes a smoke collecting cavity 1, and a smoke suction port 2 is provided at the bottom thereof. During cooking, the smoke guide plate located above the smoke suction port is opened, and the oil fume generated during the cooking process enters the smoke collecting cavity 1 from the smoke suction port 2. A wind cabinet 3 is provided at the top of the smoke collecting cavity 1, a volute 4 is installed in the wind cabinet 3, and an impeller 6 driven by a motor 5 is provided in the volute 4. When the impeller 6 rotates, a negative pressure is generated to suck the oil fume from the smoke suction port 2 into the wind cabinet 3.
[0034] Among them, an upper oil guide plate 7 is installed above the interior of the wind cabinet 3. The upper oil guide plate 7 has a "V"-shaped cross-section and is obliquely installed between the top plate 31 and the front plate 32 of the wind cabinet 3 and is within the upward orthographic projection range of the smoke suction port 2. When the oil fume condenses in the wind cabinet 3, the condensed grease will accumulate on the top plate 31 of the wind cabinet 3. To prevent the grease from dripping vertically, the "V"-shaped structure of the upper oil guide plate 7 in this case enables the condensed grease to be effectively guided. After the grease slides from the top plate 31 onto the upper oil guide plate 7, it is guided to flow forward to the low point of the upper oil guide plate 7 and finally to the back surface of the front plate 32.
[0035] Since the upper oil guide plate 7 guides the condensed grease to the back of the front plate 32, the grease flows downward along the back surface of the front plate 32 instead of directly dripping vertically onto the smoke suction port 2, thereby preventing the grease from entering the smoke suction channel or falling onto the oil filter net.
[0036] Furthermore: A lower oil guide plate 8 is provided at the bottom of the volute 4. The lower oil guide plate 8 has a "V"-shaped cross-section and is inclinedly installed at the bottom of the volute 4, facing the direction of the rear plate 33 of the air cabinet 3. The oil outlet end of the lower oil guide plate 8 extends beyond the upward orthographic projection range of the smoking port 2. The grease condensed at the bottom of the volute 4 will slide onto the lower oil guide plate 8. Since the lower oil guide plate 8 is inclinedly installed, the grease will be guided to flow in the direction of the rear plate 33.
[0037] Furthermore: A lower oil drain port 82 is provided on the lower oil guide plate 8, which is located at the lowest point of the lower oil guide plate 8. The lower oil drain port 82 discharges the collected grease beyond the upward orthographic projection range of the smoking port 2 to ensure that the grease does not re-enter the smoking path.
[0038] Among them, an upper oil drain port 71 is provided at the lowest part of the upper oil guide plate 7 for discharging the condensed grease. An extension plate 72 is connected to the upper oil drain port 71. The extension plate 72 is located below the upper oil drain port 71 and contacts the back surface of the front plate 32. The condensed oil stain will be guided by the extension plate and drained to the back surface of the front plate, and further slide down under the action of gravity, and finally collect in the oil sump.
[0039] In summary, the drip-proof range hood of the present utility model effectively prevents the condensed grease from vertically dripping onto the smoking port 2 and the stove top by cleverly arranging the upper oil guide plate 7 and the lower oil guide plate 8, maintaining the cleanliness and hygiene of the range hood, so it can be widely promoted and used.
[0040] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the claims of the present utility model.
Claims
1. An anti-drip oil range hood, comprising a smoke collecting chamber (1), a smoke inlet (2) being provided at the bottom of the smoke collecting chamber (1), a wind cabinet (3) being provided at the top of the smoke collecting chamber (1), a volute (4) being installed in the wind cabinet (3), a wind wheel (6) driven by a motor (5) being provided in the volute (4), negative pressure being generated when the wind wheel (6) rotates, and oil smoke being absorbed from the smoke inlet (2), characterized in that: An upper oil guide plate (7) is installed in the wind cabinet (3). The upper oil guide plate (7) is installed obliquely between the top plate (31) and the front plate (32) of the wind cabinet (3) and is located within the upward projection range of the smoking port (2). The upper oil guide plate (7) guides the grease condensed on the top plate (31) obliquely forward to the back of the front plate (32), and flows downward along the back of the front plate (32). The bottom of the volute (4) is provided with a lower oil guide plate (8) which is arranged to be inclined in the direction of the rear plate (33) of the wind cabinet (3), and the oil outlet end of the lower oil guide plate (8) extends outside the upward projection range of the smoking port (2).
2. The anti-drip oil range hood according to claim 1, characterized in that: The upper oil guide plate (7) has a V-shaped cross section, one free end of which is connected to the top plate (31), and the other free end of which is connected to the front plate (32). An upper oil discharge port (71) is provided at the lowest point of the upper oil guide plate (7), and the upper oil discharge port (71) extends outside the upward projection range of the smoking port (2).
3. The anti-drip oil range hood according to claim 2, characterized in that: The upper oil discharge port (71) is connected to an extension plate (72), which is located below the upper oil discharge port (71) and in contact with the back surface of the front plate (32).
4. The anti-drip oil range hood according to claim 1, characterized in that: The lower oil guide plate (8) has a V-shaped cross section, one free end of which is connected to the volute (4), and the other free end of which extends out of the front end of the volute (4).
5. The anti-drip oil range hood according to claim 4, characterized in that: The lower oil guide plate (8) extends out of the front end of the volute (4) and has a front baffle (81) extending upward on one side thereof.
6. The anti-drip oil range hood according to claim 4, characterized in that: A lower oil discharge port (82) is provided at the lowest point of the lower oil guide plate (8), and the lower oil discharge port (82) is arranged to extend outside the upward projection range of the smoking port (2).