Range hood

By setting multiple auxiliary smoke inlets in the range hood and adjusting the fan position to balance the negative pressure on the left and right sides, the problem of poor smoke collection effect of the cabinet-type range hood is solved, the emission speed and cleanliness of the fume are improved, and the cleaning speed of the fume is reduced. Fume escape and noise.

CN222187060UActive Publication Date: 2024-12-17VATTI CORP LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323611709.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-28
Publication Date
2024-12-17
Estimated Expiration
2033-12-28

AI Technical Summary

Technical Problem

Due to the small size of the cabinet range hood, the smoke collection effect is poor, and most of them have oil smoke escape. The existing solution is to increase the air volume, but it leads to an increase in noise, causing a bad experience to the user.

Method used

Design a range hood, by setting the main cigarette inlet and multiple auxiliary cigarette inlets on the cigarette collection hood, and setting the cigarette cavity and fan in the chassis, adjusting the fan position and the area and position of the auxiliary cigarette inlet, to Balance the negative pressure on the left and right sides to improve the oil smoke emission speed and smoke collection effect.

Benefits of technology

Effectively reduce the residence time of the range fume in the range hood, reduce the risk of oil pollution attachment, improve the emission speed and smoke collection effect of the fume, reduce the escape of the fume, and improve the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222187060U_ABST
    Figure CN222187060U_ABST
Patent Text Reader

Abstract

The utility model discloses a range hood. The range hood comprises an exhaust fume collecting hood, a main exhaust fume inlet and first auxiliary exhaust fume inlets are formed in the exhaust fume collecting hood, the first auxiliary exhaust fume inlets are formed in the left side and the right side of the main exhaust fume inlet, and an exhaust fume collecting cavity with a downward opening is formed in the exhaust fume collecting hood; the bottom of the machine box is installed on the upper side of the exhaust fume collecting hood and located at the position of the main exhaust fume inlet, an exhaust fume cavity is formed in the machine box and corresponds to the main exhaust fume inlet, a second auxiliary exhaust fume inlet is formed in the bottom of one of a left side plate of the machine box and a right side plate of the machine box, and a third auxiliary exhaust fume inlet is formed in the bottom of the other one of the left side plate and the right side plate. One first auxiliary smoke inlet is communicated with the second auxiliary smoke inlet, the other first auxiliary smoke inlet is communicated with the third auxiliary smoke inlet, the area of the second auxiliary smoke inlet is S1, the area of the third auxiliary smoke inlet is S2, and S1 is larger than S2; the draught fan is arranged in the smoke cavity, and the distance K1 between the draught fan and the second auxiliary smoke inlet is larger than the distance K2 between the draught fan and the third auxiliary smoke inlet.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] Cabinet-type range hoods are small in size and have poor smoke collection effects, so they often have problems with oil smoke escaping. The industry's usual method is to increase the air volume, but this will increase noise and create a bad experience for users.

[0003] Therefore, there is an urgent need for a range hood to solve the above problems. Utility Model Content

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a range hood capable of balancing the negative pressure on the left and right sides of the range hood, reducing the time that oil smoke stays in the smoke hood, reducing the oil stains adhering to the smoke hood, increasing the discharge speed of oil smoke, ensuring the smoke collection effect of the smoke hood, and reducing the escape of oil smoke.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A range hood, comprising:

[0007] A smoke collecting hood is provided with a main smoke inlet and a first auxiliary smoke inlet, the first auxiliary smoke inlet is provided on the left and right sides of the main smoke inlet, and the interior of the smoke collecting hood forms a smoke collecting cavity with an opening facing downward;

[0008] A chassis, the bottom of which is installed on the upper side of the smoke collecting hood and located at the main smoke inlet, a smoke chamber is arranged in the chassis, and the smoke chamber is arranged corresponding to the main smoke inlet, a second auxiliary smoke inlet is arranged at the bottom of one of the left side plate of the chassis and the right side plate of the chassis, and a third auxiliary smoke inlet is arranged at the bottom of the other of the left side plate and the right side plate, one of the first auxiliary smoke inlet is connected to the second auxiliary smoke inlet, and the other of the first auxiliary smoke inlet is connected to the third auxiliary smoke inlet, the area of ​​the second auxiliary smoke inlet is S1, the area of ​​the third auxiliary smoke inlet is S2, and S1>S2;

[0009] The fan is arranged in the smoke chamber, the straight-line distance between the end face of the fan close to the second auxiliary smoke inlet and the second auxiliary smoke inlet is K1, the straight-line distance between the end face of the fan close to the third auxiliary smoke inlet and the third auxiliary smoke inlet is K2, K1>K2.

[0010] Optionally, S1:S2=2:1.

[0011] Optionally, the straight-line distance between the rear end face of the fan and the rear side plate of the chassis is L2, and the straight-line distance between the front end face of the fan and the front side plate of the chassis is L3, and L2>L3.

[0012] Optionally, L2:L3=2:1.

[0013] Optionally, 70mm≤L2≤75mm, 35mm≤L3≤40mm.

[0014] Optionally, it also includes a smoke guide plate inclined downward from front to back, the smoke guide plate is installed on the smoke collecting hood, the smoke guide plate is located in the smoke collecting cavity and below the main smoke inlet, the straight-line distance between the front of the smoke guide plate and the top wall of the smoke collecting hood is H1, the straight-line distance between the rear of the smoke guide plate and the top wall of the smoke collecting hood is H2, and H2>H1.

[0015] Optionally, H1:H2=5:4.

[0016] Optionally, 55mm≤H1≤60mm, 45mm≤H2≤50mm.

[0017] Optionally, a straight-line distance between a front end of the smoke guide plate and a front side wall of the smoke collecting chamber is L1, and 48 mm ≤ L1 ≤ 55 mm.

[0018] Optionally, an oil cup is further included, and the oil cup is arranged at the lower end of the rear side of the smoke collecting hood, and the rear end of the smoke guide plate is located in the oil cup or above the oil cup.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] The range hood provided by the utility model comprises a smoke collecting hood, a chassis and a fan. A main smoke inlet and a first auxiliary smoke inlet are provided on the smoke collecting hood, and the first auxiliary smoke inlet is provided on the left and right sides of the main smoke inlet, and the interior of the smoke collecting hood forms a smoke collecting chamber with an opening facing downward. The bottom of the chassis is installed on the upper side of the smoke collecting hood and is located at the main smoke inlet. A smoke chamber is provided in the chassis, and the smoke chamber is provided corresponding to the main smoke inlet. A second auxiliary smoke inlet is provided at the bottom of one of the left side plate and the right side plate of the chassis, and a third auxiliary smoke inlet is provided at the bottom of the other of the left side plate and the right side plate. One first auxiliary smoke inlet is connected to the second auxiliary smoke inlet, and another first auxiliary smoke inlet is connected to the third auxiliary smoke inlet. The area of ​​the second auxiliary smoke inlet is S1, and the area of ​​the third auxiliary smoke inlet is S2, and S1>S2. The fan is arranged in the smoke chamber, and the straight-line distance between the end face of the fan close to the second auxiliary smoke inlet and the second auxiliary smoke inlet is K1, and the straight-line distance between the end face of the fan close to the third auxiliary smoke inlet and the third auxiliary smoke inlet is K2, K1>K2, so as to facilitate the connection with the air duct arranged on one side of the range hood. At this time, since K1>K2, the negative pressures on the left and right sides of the smoke collecting chamber are different. Specifically, the negative pressure on the side where the second auxiliary smoke inlet is located is lower than the negative pressure on the side where the third auxiliary smoke inlet is located. Therefore, when the gas stove located near the second auxiliary smoke inlet is working, most of the oil smoke will be discharged through the second auxiliary smoke inlet, but some oil smoke will still exist. The oil smoke flows over the oil guide plate and the oil net in the middle of the smoke collecting chamber to the third auxiliary smoke inlet and is discharged through the third auxiliary smoke inlet. This will cause the oil smoke to stay in the range hood for a longer time, thereby causing more oil stains to hang on the range hood, affecting the cleanliness of the range hood and reducing the efficiency of the range hood. Therefore, in this embodiment, S1>S2 is set to balance the negative pressure of the second auxiliary smoke inlet and the third auxiliary smoke inlet, so that the negative pressure on the left and right sides of the range hood is more balanced, reducing the risk of oil hanging on the smoke hood. At the same time, the oil smoke can be discharged evenly from the left and right sides of the range hood, thereby increasing the emission speed of the oil smoke, ensuring the smoke collection effect of the smoke hood, and reducing the escape of oil smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a range hood provided by a specific embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Exploded diagram of

[0023] Figure 3 yes Figure 1 A top view of

[0024] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0025] In the figure:

[0026] 1. Smoke hood; 11. Main smoke inlet; 12. First auxiliary smoke inlet;

[0027] 2. Chassis; 21. Second auxiliary smoke inlet; 22. Third auxiliary smoke inlet; 23. Rear side panel; 24. Front side panel; 25. Left side panel; 26. Right side panel;

[0028] 3. Fan; 31. Rear air inlet; 32. Front air inlet;

[0029] 4. Smoke guide plate;

[0030] 5. Oil net;

[0031] 6. Oil cup;

[0032] 100, rear smoke inlet; 200, front smoke inlet; 300, smoke collecting chamber; 400, air inlet duct. DETAILED DESCRIPTION

[0033] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific implementation of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed for protection in the present invention.

[0034] Please refer to Figure 1-Figure 4The utility model provides a range hood, comprising a smoke collecting hood 1, a chassis 2 and a fan 3. The smoke collecting hood 1 is provided with a main smoke inlet 11 and a first auxiliary smoke inlet 12, the first auxiliary smoke inlet 12 is provided on the left and right sides of the main smoke inlet 11, and the interior of the smoke collecting hood 1 forms a smoke collecting cavity 300 with an opening facing downward. The bottom of the chassis 2 is installed on the upper side of the smoke hood 1 and is located at the main smoke inlet 11. A smoke chamber is arranged in the chassis 2, and the smoke chamber is arranged corresponding to the main smoke inlet 11. A second auxiliary smoke inlet 21 is arranged at the bottom of one of the left side plate 25 of the chassis 2 and the right side plate 26 of the chassis 2, and a third auxiliary smoke inlet 22 is arranged at the bottom of the other of the left side plate 25 and the right side plate 26. One first auxiliary smoke inlet 12 is connected to the second auxiliary smoke inlet 21, and the other first auxiliary smoke inlet 12 is connected to the third auxiliary smoke inlet 22. The area of ​​the second auxiliary smoke inlet 21 is S1, and the area of ​​the third auxiliary smoke inlet 22 is S2, and S1>S2. The fan 3 is arranged in the smoke chamber, and the straight-line distance between the end face of the fan 3 close to the second auxiliary smoke inlet 21 and the second auxiliary smoke inlet 21 is K1, and the straight-line distance between the end face of the fan 3 close to the third auxiliary smoke inlet 22 and the third auxiliary smoke inlet 22 is K2, K1>K2, so as to facilitate the connection with the air duct arranged on one side of the range hood. At this time, since K1>K2, the negative pressures on the left and right sides of the smoke collecting chamber 300 are different. Specifically, the negative pressure on the side where the second auxiliary smoke inlet 21 is located is lower than the negative pressure on the side where the third auxiliary smoke inlet 22 is located. Therefore, when the gas stove located near the second auxiliary smoke inlet 21 is working, most of the oil smoke will pass through the third auxiliary smoke inlet 22. The oil smoke is discharged through the second auxiliary smoke inlet 21, but some oil smoke will still flow over the oil guide plate and the oil net 5 in the middle of the smoke collecting chamber 300 to the third auxiliary smoke inlet 22 and be discharged through the third auxiliary smoke inlet 22. In this way, the oil smoke will stay in the range hood for a longer time, and more oil stains will be hung on the range hood, affecting the cleanliness of the range hood and reducing the efficiency of the range hood. Therefore, in this embodiment, S1>S2 is set to balance the negative pressure of the second auxiliary smoke inlet 21 and the third auxiliary smoke inlet 22, so that the negative pressure on the left and right sides of the range hood is more balanced, reducing the risk of oil hanging on the smoke collecting hood 1, ensuring the smoke collection effect of the smoke collecting hood 1, and reducing the escape of oil smoke.

[0035] Optionally, S1:S2=2:1, which can basically meet the requirement of balancing the negative pressure on the left and right sides of the range hood.

[0036] Optionally, the straight-line distance between the rear end face of the fan 3 and the rear side panel 23 of the chassis 2 is L2, and the straight-line distance between the front end face of the fan 3 and the front side panel 24 of the chassis 2 is L3, L2>L3, so as to increase the area of ​​the smoke inlet channel corresponding to the rear air inlet 31 of the fan 3, and the area of ​​the smoke inlet channel corresponding to the rear air inlet 31 of the fan 3 is larger than the area of ​​the smoke inlet channel corresponding to the front air inlet 32 ​​of the fan 3, so that the air intake of the fan 3 is mainly the air intake of the rear air inlet 31, and the air intake of the front air inlet 32 ​​is auxiliary, and most of the oil smoke is discharged through the rear air inlet 31, which can greatly reduce the oil smoke flowing through the front of the range hood, thereby avoiding the risk of oil hanging on the front of the smoke hood 1, and the oil smoke flowing out through the rear of the range hood adheres to the rear of the range hood and can flow to the oil cup 6 at the lower end of the rear of the smoke hood 1 more quickly, thereby reducing the overall risk of oil hanging on the smoke hood 1.

[0037] Optionally, L2:L3=2:1, to ensure that the air intake of the fan 3 is mainly from the rear air inlet 31, while enabling the oil smoke to be discharged through the rear air inlet 31 and the front air inlet 32 ​​in time to avoid the oil smoke being retained in the smoke chamber.

[0038] Optionally, 70 mm ≤ L2 ≤ 75 mm, and 35 mm ≤ L3 ≤ 40 mm. Exemplarily, in this embodiment, L2 is 70 mm, and L3 is 35 mm.

[0039] Optionally, it also includes a smoke guide plate 4 that is tilted downward from front to back, and the smoke guide plate 4 is installed on the smoke hood 1. The smoke guide plate 4 is located in the smoke collecting chamber 300 and below the main smoke inlet 11. The straight-line distance between the front of the smoke guide plate 4 and the top wall of the smoke hood 1 is H1, and the straight-line distance between the rear of the smoke guide plate 4 and the top wall of the smoke hood 1 is H2, and H2>H1. Specifically, there is a gap between the smoke guide plate 4 and the smoke hood 1 to form a rear smoke inlet 100 between the rear of the smoke guide plate 4 and the smoke hood 1, and a front smoke inlet 200 between the front of the smoke guide plate 4 and the smoke hood 1. By setting H2>H1, the smoke intake area of ​​the rear smoke inlet 100 is larger than the smoke intake area of ​​the front smoke inlet 200, so that most of the oil-guided smoke is discharged through the rear smoke inlet 100, thereby reducing the risk of oil hanging on the front of the smoke hood 1. When the oil smoke is discharged through the rear smoke inlet 100, the oil smoke adhered to the rear of the smoke hood 1 and the rear of the oil guide plate can quickly flow to the oil cup 6 located at the lower end of the rear of the smoke hood 1, thereby reducing the risk of oil hanging on the smoke hood 1 as a whole.

[0040] Optionally, H1:H2=5:4, which can better guide most of the oil smoke to be discharged through the rear smoke inlet 100, and at the same time enable the oil smoke to be discharged through the front smoke inlet 200 and the rear smoke inlet 100 in time, avoiding the oil smoke from being retained in the smoke collecting chamber 300.

[0041] Optionally, 55 mm ≤ H1 ≤ 60 mm, 45 mm ≤ H2 ≤ 50 mm. Exemplarily, in this embodiment, H1 is 60 mm, and H2 is 48 mm.

[0042] Optionally, the straight-line distance between the front end of the smoke guide plate 4 and the front side wall of the smoke collecting chamber 300 is L1, 48mm≤L1≤55mm, to ensure that the area of ​​the air inlet duct 400 formed between the front end of the smoke guide plate 4 and the front side wall of the smoke collecting chamber 300 is large enough, so that a small amount of oil smoke discharged through the front smoke port 200 can quickly flow into the front smoke port 200, thereby reducing the risk of oil hanging on the front of the smoke collecting hood 1.

[0043] Optionally, an oil cup 6 is further included, which is arranged at the lower end of the rear side of the smoke collecting hood 1, and the rear end of the smoke guide plate 4 is located in the oil cup 6 or above the oil cup 6 to receive oil stains.

[0044] Optionally, an oil net 5 is further included, and the oil net 5 is installed at the main smoke inlet 11.

[0045] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A range hood, It is characterized in that include: A smoke collecting hood (1) is provided with a main smoke inlet (11) and a first auxiliary smoke inlet (12), the first auxiliary smoke inlet (12) being arranged on the left and right sides of the main smoke inlet (11), and a smoke collecting cavity (300) with an opening facing downward is formed inside the smoke collecting hood (1); A chassis (2), the bottom of which is mounted on the upper side of the smoke collecting hood (1) and located at the main smoke inlet (11); a smoke chamber is arranged in the chassis (2), and the smoke chamber is arranged corresponding to the main smoke inlet (11); a second auxiliary smoke inlet (21) is arranged at the bottom of one of the left side plate (25) of the chassis (2) and the right side plate (26) of the chassis (2); a third auxiliary smoke inlet (22) is arranged at the bottom of the other of the left side plate (25) and the right side plate (26); one of the first auxiliary smoke inlet (12) is connected to the second auxiliary smoke inlet (21), and the other of the first auxiliary smoke inlet (12) is connected to the third auxiliary smoke inlet (22); the area of ​​the second auxiliary smoke inlet (21) is S1, and the area of ​​the third auxiliary smoke inlet (22) is S2, and S1>S2; The fan (3) is arranged in the smoke chamber, the straight-line distance between the end face of the fan (3) close to the second auxiliary smoke inlet and the second auxiliary smoke inlet (21) is K1, and the straight-line distance between the end face of the fan (3) close to the third auxiliary smoke inlet and the third auxiliary smoke inlet (22) is K2, and K1>K2.

2. The range hood according to claim 1, It is characterized in that S1:S2=2:

1.

3. The range hood according to claim 1, It is characterized in that The straight-line distance between the rear end face of the fan (3) and the rear side plate (23) of the chassis (2) is L2, and the straight-line distance between the front end face of the fan (3) and the front side plate (24) of the chassis (2) is L3, and L2>L3.

4. The range hood according to claim 3, It is characterized in that L2:L3=2:

1.

5. The range hood according to claim 4, It is characterized in that 70mm≤L2≤75mm, 35mm≤L3≤40mm.

6. The range hood according to any one of claims 1 to 5, It is characterized in that It also includes a smoke guide plate (4) arranged to be tilted downward from front to back, the smoke guide plate (4) being installed on the smoke collecting hood (1), the smoke guide plate (4) being located in the smoke collecting cavity (300) and below the main smoke inlet (11), the straight-line distance between the front part of the smoke guide plate (4) and the top wall of the smoke collecting hood (1) being H1, the straight-line distance between the rear part of the smoke guide plate (4) and the top wall of the smoke collecting hood (1) being H2, and H2>H1.

7. The range hood according to claim 6, It is characterized in that H1:H2=5:

4.

8. The range hood according to claim 7, It is characterized in that 55mm≤H1≤60mm, 45mm≤H2≤50mm.

9. The range hood according to claim 8, It is characterized in that The straight-line distance between the front end of the smoke guide plate (4) and the front side wall of the smoke collecting chamber (300) is L1, and 48 mm ≤ L1 ≤ 55 mm.

10. The range hood according to claim 6, It is characterized in that It also comprises an oil cup (6), the oil cup (6) being arranged at the lower end of the rear side of the smoke collecting hood (1), and the rear end of the smoke guide plate (4) being located in the oil cup (6) or above the oil cup (6).