Range hood and kitchen system comprising same
By setting up a main air inlet area and a secondary air inlet area in the range hood and using a graded adsorption structure with different suction forces, the problem of insufficient oil fume capture capacity of existing range hoods is solved, the full-surrounded capture and escape prevention of oil fume is achieved, and the oil fume extraction effect is improved.
Patent Information
- Application Number
- CN202421520199.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing range hoods have a weak oil fume capture capability, especially when the amount of oil fume is large or the diffusion speed is fast, the airflow at the air inlet cannot effectively overcome the energy of the oil fume, causing the oil fume to escape.
A range hood is designed, in which a main air inlet area and a secondary air inlet area are provided. The suction force of the main air inlet area is greater than that of the secondary air inlet area, forming a surrounding arrangement. The main air inlet area covers the rising range of oil smoke, and the secondary air inlet area captures escaping oil smoke, thereby improving the capture capacity through graded adsorption.
It achieves full-surround capture of oil smoke to prevent it from escaping, improves the capture capacity of the range hood, and enhances the user experience.
Smart Images
Figure CN222799094U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a range hood and a kitchen system comprising the range hood. Background Art
[0002] Range hoods are usually installed above stoves. They can quickly extract and discharge to the outside the stove the waste burned by the stove and the fumes harmful to the human body generated during the cooking process, playing an important role in maintaining the kitchen environment and human health.
[0003] Existing top-suction range hoods are generally deep-cavity style or with butterfly-wing plate style. For deep-cavity style range hoods, they have a large smoke-collecting cavity, and their air inlet is located in the center of the range hood. The air inlet has the same traction ability for the airflow in all directions and positions below it. Since the cooking pots are located in the front and edge of the range hood, the deep-cavity range hood’s air intake airflow has a low traction effect on the oil smoke, that is, most of the airflow in the deep-cavity range hood’s air intake volume does not reach the effect of traction of the oil smoke. For butterfly-wing plate range hoods, their air inlets are scattered around the butterfly plate. After the oil smoke rises to the lower surface of the butterfly plate, its speed decreases, and then it moves around along the surface of the butterfly plate, and finally moves along the surface of the butterfly plate to the air inlet, and continues to enter the fan box along the surface. After rising to the height of the butterfly plate, the oil smoke always moves along the wall. However, the flow cross-section of the air inlet is relatively large, and the oil smoke only occupies a very small part of the area, while the velocity distribution of the airflow on each cross-section is basically the same. Therefore, most of the airflow still does not work on the oil smoke, that is, the airflow of the butterfly-wing plate range hood has a relatively low efficiency in pulling the oil smoke. In other words, the existing range hood has a weak ability to pull the oil smoke, which leads to poor oil smoke capture ability of the range hood. In particular, when the amount of oil smoke is large or the speed at which the oil smoke diffuses outward is high, the pulling force of the airflow at the air inlet on the oil smoke cannot overcome the energy of the oil smoke diffusing outward, so that the oil smoke will escape. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the defect of poor oil smoke collection ability of the prior art range hood, and to provide a range hood and a kitchen system including the range hood.
[0005] The utility model solves the above technical problems through the following technical solutions:
[0006] The utility model discloses a range hood, the range hood comprises a smoke collecting hood, the air inlet surface of the smoke collecting hood facing the stove is recessed inwards to form a first smoke collecting chamber, the top wall of the first smoke collecting chamber is recessed inwards to form a second smoke collecting chamber, the second smoke collecting chamber is provided with a main air inlet area facing and close to the side wall of the first smoke collecting chamber or the top wall of the second smoke collecting chamber, at least one auxiliary air inlet area is provided in the first smoke collecting chamber, the suction force of the main air inlet area is respectively greater than the suction force of each auxiliary air inlet area, the main air inlet area and at least one auxiliary air inlet area form a surrounding arrangement, and the projection of the first smoke collecting chamber in the vertical direction is at least located within the range of the front end of at least one cooking area of the stove and the center of at least one cooking area of the stove.
[0007] In this solution, the above-mentioned structural form is adopted, and the suction force of the main air inlet area is respectively greater than the suction force of each auxiliary air inlet area, so that the main air inlet area has a greater pulling capacity for oil smoke than each auxiliary air inlet area, thereby making the main air inlet area have a greater ability to capture oil smoke than the auxiliary air inlet area. With the above-mentioned structural form, when the oil smoke rises to the air inlet surface, most of the oil smoke is within the range covered by the main air inlet area, and can be immediately pulled into the smoke hood by the suction force at the main air inlet area. When the amount of oil smoke is large, the oil smoke cannot be completely captured from the main air inlet area immediately, so that the excess oil smoke will spread to the surroundings, and the diffused and escaped oil smoke is captured by the auxiliary air inlet area, thereby ensuring that the oil smoke cannot break through the auxiliary air inlet area to escape, thereby improving the oil smoke capture capacity of the range hood, so that the main air inlet area and the auxiliary air inlet area are fully surrounded by the oil smoke to prevent the oil smoke from escaping, and improving the user experience of the operator. The above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing airflow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area, thereby preventing the oil smoke near the main air inlet area from escaping. In addition, the projection of the first smoke collecting chamber in the vertical direction is at least located within the range of the front end of at least one cooking area of the cooker and the center of at least one cooking area, so that when the oil smoke rises to the height of the range hood, it can contact the first smoke collecting chamber with the minimum range and directly enter the second smoke collecting chamber. Since the main air inlet area is opened in the second smoke collecting chamber, when the oil smoke enters the second smoke collecting chamber, under the action of the traction force of the main air inlet area, the oil smoke will cover the air inlet interface of the entire main air inlet area and enter the inside of the smoke collecting hood. That is, the oil smoke and air are completely mixed, and the traction effect of the range hood is maximized.
[0008] Preferably, the main air inlet area is opened on a side wall of the second smoke collecting cavity facing and close to the first smoke collecting cavity, and a top wall of the first smoke collecting cavity extends obliquely downward from a side close to the main air inlet area.
[0009] In this solution, the above-mentioned structural form is adopted, and the liquid residual oil in the main air inlet area will flow downward along the top wall of the first smoke collecting chamber, so that the liquid residual oil in the main air inlet area can be better handled and the oil smoke in the main air inlet area can be prevented from dripping vertically downward.
[0010] Preferably, the main air inlet area includes one or more main air inlets;
[0011] And / or, the secondary air inlet area includes one or more secondary air inlets.
[0012] In this solution, the above-mentioned structural form is adopted to achieve the adsorption of most of the oil smoke through one or more main air inlets; and the capture of escaping oil smoke is achieved through one or more auxiliary air inlets, thereby improving the oil smoke adsorption capacity of the range hood.
[0013] Preferably, the main air inlet extends along the extension direction of the main air inlet area;
[0014] And / or, the secondary air inlet extends along an extension direction of the secondary air inlet area.
[0015] In the present scheme, the above-mentioned structural form is adopted, and the main air inlet is extended along the extension direction of the main air inlet area, thereby improving the main air inlet area's ability to adsorb oil smoke, thereby increasing the size of the air curtain in the length direction of the smoke hood; the auxiliary air inlet is extended along the extension direction of the auxiliary air inlet area, thereby improving the auxiliary air inlet's ability to capture oil smoke escaping to the surroundings.
[0016] Preferably, the auxiliary air inlet includes an auxiliary air inlet and a secondary air inlet, the auxiliary air inlet is farther away from the main air inlet area than the secondary air inlet, and the air inlet area of the secondary air inlet is larger than the air inlet area of the auxiliary air inlet.
[0017] In the present scheme, the above-mentioned structural form is adopted, and the oil smoke that is not absorbed by the main air inlet area will first escape in the direction of the secondary air inlet setting position, so that most of the escaped oil smoke is captured by the secondary air inlet, and then the oil smoke that is not captured by the secondary air inlet will escape in the direction of the auxiliary air inlet setting position, so that the remaining oil smoke is captured by the auxiliary air inlet, and then all the oil smoke is captured by the range hood, thereby improving the range hood's ability to capture oil smoke.
[0018] Preferably, the air inlet area of the main air inlet area is not less than 100 cm 2 , and the air inlet area of the main air inlet area is not greater than 200cm 2 ;
[0019] And / or, the air inlet area of the secondary air inlet area is not less than 50cm 2 , and the air inlet area of the secondary air inlet area is not greater than 100cm2 .
[0020] In this solution, when the instantaneous amount of oil smoke generated is large, the larger main air inlet area can provide sufficient air volume to draw the oil smoke and prevent the oil smoke from spreading outward due to congestion in the main air inlet area; the above-mentioned structural form is adopted, which improves the capture of escaping oil smoke by the secondary air inlet area, thereby improving the range hood's ability to adsorb oil smoke.
[0021] Preferably, the depression depth of the first smoke collecting chamber is not more than 15 mm and not less than 70 mm;
[0022] And / or, the depression depth of the second smoke collecting chamber is not more than 15 mm and not less than 70 mm.
[0023] In this solution, the above-mentioned structural form is adopted, and the oil smoke can be gathered by the first smoke collecting chamber and the second smoke collecting chamber, so that the auxiliary air inlet area in the first smoke collecting chamber and the main air inlet area in the second smoke collecting chamber can absorb the oil smoke.
[0024] Preferably, the smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement.
[0025] In this solution, the above-mentioned structural form is adopted to improve the capture capacity of the secondary air inlet area for escaping oil smoke.
[0026] Preferably, the range hood further comprises an oil guide structure, which is arranged inside the fume collecting hood, and the oil guide structure extends obliquely upward from a position close to the bottom surface of the fume collecting hood, and the projection of the oil guide structure in the height direction of the range hood at least partially covers the main air inlet area;
[0027] An extension portion is provided at one end of the oil guide structure away from the bottom surface of the smoke collecting hood, and an arc surface is provided on the side of the extension portion facing the main air inlet area. The arc surface extends in the height direction of the range hood, and the center of the arc surface is located on the side of the oil guide structure away from the main air inlet area.
[0028] In the present scheme, the above-mentioned structural form is adopted, and the oil guiding structure extends upwardly at an angle from a position close to the bottom surface of the smoke hood, and the projection of the oil guiding structure in the height direction of the range hood at least partially covers the main air inlet area, so that the smoke airflow entering the smoke hood from the main air inlet area will impact the surface of the oil guiding structure. During the impact process of the smoke airflow, small oil droplets in the airflow will contact and adhere to the surface of the oil guiding structure. As the small oil droplets continue to accumulate, the gathered oil droplets will flow downward along the inclined oil guiding structure to complete the collection. In this way, the oil guiding structure has already precipitated some oil and grease before the smoke airflow enters the fan, and the overall oil precipitation rate of the range hood is improved.
[0029] The utility model further discloses a kitchen system, the kitchen system comprising the range hood as described in any one of the above items;
[0030] The kitchen system comprises a stove, and a projection of the first smoke collecting chamber in the vertical direction is at least located within the range between the front end of at least one cooking area of the stove and the center of at least one cooking area.
[0031] In this solution, the stove is applied to the kitchen system, and the suction force of the main air inlet area is greater than the suction force of each auxiliary air inlet area, so that the main air inlet area has a greater pulling capacity for oil smoke than each auxiliary air inlet area, and thus the main air inlet area has a greater ability to capture oil smoke than the auxiliary air inlet area. With the above-mentioned structural form, when the oil smoke rises to the air inlet surface, most of the oil smoke is within the range covered by the main air inlet area, and can be immediately pulled into the smoke hood by the suction force at the main air inlet area. When the amount of oil smoke is large, the oil smoke cannot be completely captured from the main air inlet area immediately, so that the excess oil smoke will spread to the surroundings, and the diffused and escaped oil smoke is captured by the auxiliary air inlet area, thereby ensuring that the oil smoke cannot break through the auxiliary air inlet area to escape, thereby improving the oil smoke capture capacity of the range hood, so that the main air inlet area and the auxiliary air inlet area are fully surrounded by the oil smoke to prevent the oil smoke from escaping, and improving the user experience of the operator. The above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing airflow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area, thereby preventing the oil smoke near the main air inlet area from escaping. In addition, the projection of the first smoke collecting chamber in the vertical direction is at least located within the range of the front end of at least one cooking area of the cooker and the center of at least one cooking area, so that when the oil smoke rises to the height of the range hood, it can contact the first smoke collecting chamber with the minimum range and directly enter the second smoke collecting chamber. Since the main air inlet area is opened in the second smoke collecting chamber, when the oil smoke enters the second smoke collecting chamber, under the action of the traction force of the main air inlet area, the oil smoke will cover the air inlet interface of the entire main air inlet area and enter the inside of the smoke collecting hood. That is, the oil smoke and air are completely mixed, and the traction effect of the range hood is maximized.
[0032] The positive and progressive effects of the utility model are:
[0033] The suction force of the main air inlet area is greater than the suction force of each auxiliary air inlet area, so that the main air inlet area has a greater traction capacity for oil smoke than each auxiliary air inlet area, thereby making the main air inlet area have a greater ability to capture oil smoke than the auxiliary air inlet area. With the above-mentioned structural form, when the oil smoke rises to the air inlet surface, most of the oil smoke is within the coverage of the main air inlet area and can be immediately drawn into the smoke hood by the suction force at the main air inlet area. When the amount of oil smoke is large, the oil smoke cannot be completely captured from the main air inlet area immediately, so that the excess oil smoke will spread around, and the diffused and escaping oil smoke will be captured by the auxiliary air inlet area, thereby ensuring that the oil smoke cannot break through the auxiliary air inlet area to escape, thereby improving the oil smoke capture capacity of the range hood, so that the main air inlet area and the auxiliary air inlet area are fully surrounded by the oil smoke to prevent the oil smoke from escaping, thereby improving the user experience of the operator. The above-mentioned form can make the air flow speed near the main air inlet area large enough through the main air inlet area, so that the continuously flowing airflow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area, thereby preventing the oil smoke near the main air inlet area from escaping. In addition, the projection of the first smoke collecting chamber in the vertical direction is at least located within the range of the front end of at least one cooking area of the cooker and the center of at least one cooking area, so that when the oil smoke rises to the height of the range hood, it can contact the first smoke collecting chamber with the minimum range and directly enter the second smoke collecting chamber. Since the main air inlet area is opened in the second smoke collecting chamber, when the oil smoke enters the second smoke collecting chamber, under the action of the traction force of the main air inlet area, the oil smoke will cover the air inlet interface of the entire main air inlet area and enter the inside of the smoke collecting hood. That is, the oil smoke and air are completely mixed, and the traction effect of the range hood is maximized. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the utility model.
[0035] Figure 2 It is a schematic structural diagram of a range hood according to an embodiment of the utility model.
[0036] Figure 3 It is a schematic diagram of a range hood according to an embodiment of the utility model.
[0037] Figure 4 The figure is a cross-sectional schematic diagram of a range hood according to an embodiment of the utility model.
[0038] Figure 5 It is a partial cross-sectional schematic diagram of a range hood according to an embodiment of the utility model.
[0039] Figure 6 Schematic diagram of the oil guide structure of an embodiment of the utility model.
[0040] Range hood 100
[0041] Fume hood 1
[0042] Air inlet surface 11
[0043] The first smoke chamber 12
[0044] Second smoke chamber 13
[0045] Main air intake area 14
[0046] Main air inlet 141
[0047] Auxiliary air intake area 15
[0048] Auxiliary air inlet 151
[0049] Oil guide structure 16
[0050] Extension 161
[0051] Arc surface 162
[0052] Oil box 17
[0053] Length direction L of the range hood
[0054] Width direction W of the range hood
[0055] Height direction H of range hood DETAILED DESCRIPTION
[0056] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.
[0057] like Figures 1 to 6As shown, the utility model provides a range hood 100, the range hood 100 includes a smoke collecting hood 1, an air inlet surface 11 of the smoke collecting hood 1 facing the cooker is recessed inward to form a first smoke collecting chamber 12, the top wall of the first smoke collecting chamber 12 is recessed inward to form a second smoke collecting chamber 13, the second smoke collecting chamber 13 is provided with a main air inlet area 14 facing and close to the side wall of the first smoke collecting chamber 12 or the top wall of the second smoke collecting chamber 13, at least one auxiliary air inlet area 15 is provided in the first smoke collecting chamber 12, the suction force of the main air inlet area 14 is respectively greater than the suction force of each auxiliary air inlet area 15, the main air inlet area 14 and the at least one auxiliary air inlet area 15 are arranged in a surrounding manner, and the projection of the first smoke collecting chamber 12 in the vertical direction is at least located within the range of the front end of at least one cooking area of the cooker and the center of at least one cooking area. Specifically, the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, so that the main air inlet area 14 has a greater pulling capacity for oil smoke than each auxiliary air inlet area 15, thereby making the main air inlet area 14 have a greater collection capacity for oil smoke than the auxiliary air inlet area 15. With the above structure, when the oil smoke rises to the air inlet surface 11, most of the oil smoke is within the coverage of the main air inlet area 14 and can be immediately pulled into the smoke hood 1 by the suction force at the main air inlet area 14. When the amount of oil smoke is large, the oil smoke cannot be completely captured from the main air inlet area 14 immediately, so that the excess oil smoke will spread to the surroundings, and the scattered and escaping oil smoke will be captured by the secondary air inlet area 15, thereby ensuring that the oil smoke cannot break through the secondary air inlet area 15 to escape, thereby improving the oil smoke capture ability of the range hood 100, so that the main air inlet area 14 and the secondary air inlet area 15 can fully surround the oil smoke to prevent the oil smoke from escaping, thereby improving the user experience of the operator. The above form can make the air flow speed near the main air inlet area 14 large enough through the main air inlet area 14, so that the continuously flowing airflow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area 14, thereby preventing the oil smoke near the main air inlet area 14 from escaping. In addition, the projection of the first smoke collecting chamber 12 in the vertical direction is at least located within the range between the front end of at least one cooking area of the cooker and the center of at least one cooking area, so that when the oil smoke rises to the height of the range hood 100, it can contact the first smoke collecting chamber 12 with the minimum range and directly enter the second smoke collecting chamber 13. Since the main air intake area 14 is opened in the second smoke collecting chamber 13, when the oil smoke enters the second smoke collecting chamber 13, under the action of the traction force of the main air intake area 14, the oil smoke will cover the entire air intake interface of the main air intake area 14 and enter the inside of the smoke collecting hood 1. That is, the oil smoke is completely mixed with the air, and the traction effect of the range hood 100 is maximized.
[0058] It should be noted that when the amount of oil smoke is large, the oil smoke is first captured by the main air inlet area 14, and the oil smoke not captured by the main air inlet 141 spreads to the surroundings along the air inlet surface 11, and then the escaped oil smoke is captured by the auxiliary air inlet area 15. In other words, the range hood 100 of the present application realizes graded adsorption through the different suction forces of the main air inlet area 14 and the auxiliary air inlet area 15, thereby improving the oil smoke capture capability of the range hood 100.
[0059] In specific use, the suction force of the main air inlet area 14 and the suction force of the auxiliary air inlet area 15 are related to factors such as the power of the fan and the size of the air inlet of the air inlet area. In this embodiment, the main air inlet area 14 and the auxiliary air inlet area 15 are adsorbed by the same fan, so when the size of the air inlet of the main air inlet area 14 is larger than the size of the air inlet of the auxiliary air inlet area 15, the adsorption capacity of the main air inlet area 14 for oil smoke is greater than the adsorption capacity of the auxiliary air inlet area 15 for oil smoke.
[0060] The aforementioned arrangement of one main air inlet area 14 and at least one auxiliary air inlet area 15 forming a surround can be interpreted as, when the number of the auxiliary air inlet area 15 is one, the auxiliary air inlet area 15 circumferentially surrounds one end of the main air inlet area 14 and reaches the other end of the main air inlet area 14. In other words, the smoking range of the auxiliary air inlet area 15 is continuous and uninterrupted; when the number of air inlet areas is multiple, the smoking range of the auxiliary air inlet area 15 is intermittent, and the number of air inlet areas is the same as the number of smoking ranges of the auxiliary air inlet areas 15.
[0061] In this embodiment, when the number of cooking areas is one, the projection of the first smoke collecting chamber 12 in the vertical direction is located within the range between the front end of the cooking area and the center of the cooking area. When the number of cooking areas is two, and the two cooking areas are spaced apart along the length direction of the range hood, the projection of the first smoke collecting chamber 12 in the vertical direction is located within the range between the front ends of the two cooking areas and the centers of the two cooking areas. In other embodiments, the projection area of the first smoke collecting chamber 12 can be adjusted according to the number of cooking areas, which is not limited here. The front end of the cooking area refers to the end of the cooking area close to the operator. Taking the cooking area as a circle as an example, the center of the cooking area is explained. When the cooking area is a circle, the center of the cooking area is the center of the circle.
[0062] The main air inlet area 14 is opened on the side wall of the second smoke collecting chamber 13 facing and close to the first smoke collecting chamber 12, and the top wall of the first smoke collecting chamber 12 extends obliquely downward from the side close to the main air inlet area 14. With the above structure, the liquid residue of oil in the main air inlet area 14 will flow downward along the top wall of the first smoke collecting chamber 12, so that the liquid residue of oil in the main air inlet area 14 can be better processed, and the oil smoke in the main air inlet area 14 is prevented from dripping vertically downward.
[0063] In this embodiment, an oil collecting box 17 is connected to a side of the first smoke collecting chamber 12 away from the main air inlet area 14, and flowing oil can flow into the oil collecting box 17 to collect the oil smoke.
[0064] In specific use, the distance between the front and rear ends of the first smoke collecting chamber 12 along the width direction of the range hood 100 is 280mm≤d1≤440mm. The distance between the center of the cooking area in a general household kitchen and the wall on which the range hood 100 is installed is 280mm, and the diameter of the cooking pot placed on the cooking area is 320mm, so that the front end of the pot is 440mm away from the wall, thereby achieving that the projection of the first smoke collecting chamber 12 in the vertical direction is at least located within the range between the front end of at least one cooking area of the cooker and the center of at least one cooking area.
[0065] Specifically, when the distance between the front and rear ends of the first smoke collecting chamber 12 is 280 mm, it is convenient to open the first smoke collecting chamber 12 on the air inlet surface 11; when the distance between the front and rear ends of the first smoke collecting chamber 12 is 360 mm, it is convenient to open the first smoke collecting chamber 12 on the air inlet surface 11, while increasing the smoke gathering range of the first smoke collecting chamber 12; when the distance between the front and rear ends of the first smoke collecting chamber 12 is 440 mm, the smoke gathering range of the first smoke collecting chamber 12 is increased, thereby increasing the adsorption efficiency of the main air inlet area 14 and the auxiliary air inlet area for the oil smoke.
[0066] In this embodiment, the auxiliary air inlet area 15 is located on the side wall of the first smoke collecting chamber 12. When the oil smoke diffuses outward, it first moves along the wall of the first smoke collecting chamber 12. When it moves to the edge of the first smoke collecting chamber 12, it is pulled into the range hood 100 by the strong airflow of the auxiliary air inlet area 15. Since the oil smoke has a certain thickness when it diffuses on the surface of the first smoke collecting chamber 12, and the height of the auxiliary air inlet area 15 is relatively small, the oil smoke almost covers the auxiliary air inlet area 15 and enters the range hood 100.
[0067] The main air inlet area 14 includes one or more main air inlets 141, so that most of the oil smoke is adsorbed through one or more main air inlets 141; Figure 1 , Figure 2 and Figure 4 As shown, this embodiment takes one main air inlet 141 as an example for adaptive expression. In other embodiments, the number of main air inlets 141 can be adjusted according to actual needs and is not limited here.
[0068] like Figures 1 to 4 As shown, the auxiliary air inlet area 15 includes one or more auxiliary air inlets 151, which improves the oil fume adsorption capacity of the range hood 100.
[0069] There are several implementations for the main air inlet 141 and the auxiliary air inlet 151. In the first implementation, the main air inlet 141 extends along the extension direction of the main air inlet area 14; in the second implementation, the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15; in the third implementation, the main air inlet 141 extends along the extension direction of the main air inlet area 14, and the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15. Preferably, the main air inlet 141 extends along the extension direction of the main air inlet area 14, and the auxiliary air inlet 151 extends along the extension direction of the auxiliary air inlet area 15, thereby improving the adsorption capacity of the main air inlet area 14 and the auxiliary air inlet area 15 for oil smoke. In addition, the above structural form improves the adsorption capacity of the main air inlet area 14 for oil smoke, thereby increasing the size of the air curtain in the length direction of the range hood 100; in addition, the above form also improves the capture capacity of the auxiliary air inlet 151 for oil smoke escaping to the surroundings.
[0070] The auxiliary air inlet 151 includes an auxiliary air inlet and a secondary air inlet. The auxiliary air inlet is farther away from the main air inlet area 14 than the secondary air inlet, and the air inlet area of the secondary air inlet is larger than that of the auxiliary air inlet. With the above-mentioned structure, the oil smoke that is not absorbed by the main air inlet area 14 first escapes in the direction of the secondary air inlet setting position, so that most of the escaped oil smoke is captured by the secondary air inlet, and then the oil smoke that is not captured by the secondary air inlet will escape in the direction of the auxiliary air inlet setting position, so that the remaining oil smoke is captured by the auxiliary air inlet, and then all the oil smoke is captured by the range hood 100, thereby improving the oil smoke capture capability of the range hood 100.
[0071] There are several implementations for the air inlet areas of the main air inlet area 14 and the auxiliary air inlet area 15. In the first implementation, the air inlet area of the main air inlet area 14 is not less than 100 cm 2 , and the air inlet area of the main air inlet area 14 is not greater than 200cm 2 In the second embodiment, the air inlet area of the secondary air inlet area 15 is not less than 50cm 2 , and the air inlet area of the secondary air inlet area 15 is not greater than 100cm 2 ; In the third embodiment, the air inlet area of the main air inlet area 14 is not less than 100cm 2 , and the air inlet area of the main air inlet area 14 is not greater than 200cm 2 , and the air inlet area of the secondary air inlet area 15 is not less than 50cm 2 , and the air inlet area of the secondary air inlet area 15 is not greater than 100cm 2 In this embodiment, the air inlet area of the main air inlet area 14 is preferably not less than 100 cm 2 , and the air inlet area of the main air inlet area 14 is not greater than 200cm2 , and the air inlet area of the secondary air inlet area 15 is not less than 50cm 2 , and the air inlet area of the secondary air inlet area 15 is not greater than 100cm 2 Specifically, when the instantaneous amount of oil smoke generated is large, the larger main air inlet area 14 can provide sufficient air volume to draw the oil smoke and prevent the oil smoke from spreading outward due to congestion in the main air inlet area 14; the above-mentioned structural form also improves the capture of escaping oil smoke by the secondary air inlet area 15, thereby improving the oil smoke adsorption capacity of the range hood 100.
[0072] In actual use, the larger the air inlet area, the stronger the suction. The air inlet area of the main air inlet area 14 is 100cm 2 When the main air inlet area 14 is ensured to capture most of the oil smoke, the proportion of the main air inlet area 14 on the smoke hood 1 is reduced, thereby preventing other components in the smoke hood 1 from being exposed and improving the operating safety of the operator; the air inlet area of the main air inlet area 14 is 150cm 2 When the main air inlet area 14 has a strong ability to capture oil smoke, it can also prevent other parts in the smoke hood 1 from being exposed, thereby improving the operating safety of the operator; the air inlet area of the main air inlet area 14 is 200cm 2 When other components in the smoke collecting hood 1 are prevented from being exposed, it can be ensured that the main air inlet area 14 can capture most of the oil smoke, thereby improving the oil smoke capturing ability of the range hood.
[0073] For the secondary air inlet area 15, the air inlet area of the secondary air inlet area 15 is 50 cm 2 When the secondary air inlet area 15 is ensured to capture the escaping oil smoke, the proportion of the secondary air inlet area 15 on the smoke hood 1 is reduced, thereby preventing other components in the smoke hood 1 from being exposed and improving the operating safety of the operator; the air inlet area of the secondary air inlet area 15 is 75cm 2 When the auxiliary air inlet area 15 has a strong ability to capture the escaping oil smoke, it can also prevent other parts in the smoke hood 1 from being exposed, thereby improving the operating safety of the operator; the air inlet area of the auxiliary air inlet area 15 is 100cm 2 When other components in the smoke collecting hood 1 are prevented from being exposed, it can be ensured that the auxiliary air inlet area 15 can capture most of the oil smoke, thereby improving the oil smoke capturing ability of the range hood.
[0074] There are several implementations for the depression depth of the first smoke collecting chamber 12 and the depression depth of the second smoke collecting chamber 13. In the first implementation, the depression depth of the first smoke collecting chamber 12 is not greater than 15 mm and not less than 70 mm; in the second implementation, the depression depth of the second smoke collecting chamber 13 is not greater than 15 mm and not less than 70 mm; in the third implementation, the depression depth of the first smoke collecting chamber 12 is not greater than 15 mm and not less than 70 mm, and the depression depth of the second smoke collecting chamber 13 is not greater than 15 mm and not less than 70 mm. With the above-mentioned structural form, the first smoke collecting chamber 12 and the second smoke collecting chamber 13 can gather the smoke, so that the auxiliary air inlet area 15 in the first smoke collecting chamber 12 and the main air inlet area 14 in the second smoke collecting chamber 13 can absorb the smoke.
[0075] During specific use, when the depression depth of the first smoke collecting chamber 12 and the second smoke collecting chamber 13 is 15 mm, the ability of the first smoke collecting chamber 12 and the second smoke collecting chamber 13 to gather oil smoke is guaranteed; the depression depth of the first smoke collecting chamber 12 and the second smoke collecting chamber 13 is 42.5 mm, so that the first smoke collecting chamber 12 and the second smoke collecting chamber 13 can not only have the ability to gather oil smoke, but also prevent the first smoke collecting chamber 12 and the second smoke collecting chamber 13 from interfering with the components inside the smoke collecting hood 1, thereby improving the safety and stability of the use of the components inside the smoke collecting hood 1; the depression depth of the first smoke collecting chamber 12 and the second smoke collecting chamber 13 is 70 mm, which can prevent the first smoke collecting chamber 12 and the second smoke collecting chamber 13 from interfering with the components inside the smoke collecting hood 1, thereby improving the safety and stability of the use of the components inside the smoke collecting hood 1.
[0076] The smoking range of the auxiliary air inlet area 15 in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area 14 in the direction of the surrounding arrangement, thereby improving the ability of the auxiliary air inlet area 15 to capture escaping oil smoke.
[0077] like Figure 5 and Figure 6As shown, the range hood 100 also includes an oil guiding structure 16, which is arranged inside the smoke collecting hood 1, and the oil guiding structure 16 extends obliquely upward from a position close to the bottom surface of the smoke collecting hood 1, and the projection of the oil guiding structure 16 in the height direction of the range hood 100 at least partially covers the main air inlet area 14; an extension portion 161 is provided at one end of the oil guiding structure 16 away from the bottom surface of the smoke collecting hood 1, and an arc surface 162 is provided on the side of the extension portion 161 facing the main air inlet area 14, the arc surface 162 extends in the height direction of the range hood 100, and the center of the arc surface 162 is located on the side of the oil guiding structure 16 away from the main air inlet area 14. With the above-mentioned structural form, the oil guide structure 16 extends upwardly from a position close to the bottom surface of the smoke hood 1, and the projection of the oil guide structure 16 in the height direction of the range hood 100 at least partially covers the main air inlet area 14, so that the smoke airflow entering the smoke hood 1 from the main air inlet area 14 will impact the surface of the oil guide structure 16. During the impact process of the smoke airflow, the small oil droplets in the airflow will contact and adhere to the surface of the oil guide structure 16. As the small oil droplets continue to accumulate, the oil droplets gathered together will flow downward along the inclined oil guide structure 16 to complete the collection. In this way, the oil guide structure 16 has already precipitated some grease before the smoke airflow enters the fan, and the overall grease precipitation rate of the range hood 100 is improved. In addition, the oil guide structure 16 also has the function of guiding the airflow and oil smoke. After the airflow enters the second smoke collecting chamber 13, the oil guide structure 16 extending inward helps to guide the airflow to flow quickly. The end of the oil guide structure 16 is provided with an upwardly inclined arc surface 162 for guiding the airflow to move upward. The curvature of the structure is continuous, which can effectively reduce the local pressure loss of the airflow at this position, and help reduce resistance, increase air volume, and improve traction. A plurality of oil holes are provided at the end of the oil guide structure 16. When the range hood 100 continues to work, more or less oil droplets will accumulate on the top of the oil guide structure 16. The oil holes are provided at this position to facilitate guiding the oil droplets above the second smoke collecting chamber 13 and the oil guide structure 16 to the inside of the range hood 100, and prevent accumulation above the second smoke collecting chamber 13 and the oil guide structure 16.
[0078] In this embodiment, the projection of the oil guide structure 16 in the height direction of the range hood 100 covers the main air inlet area 14 , thereby improving the oil guide capacity of the oil guide structure 16 .
[0079] The present embodiment further provides a kitchen system, which includes a range hood 100; the kitchen system includes a stove, and the projection of the first smoke collecting chamber 12 in the vertical direction is at least located within the range between the front end of at least one cooking area of the stove and the center of at least one cooking area. Specifically, when the stove is applied to the kitchen system, the suction force of the main air inlet area 14 is greater than the suction force of each auxiliary air inlet area 15, so that the traction capacity of the main air inlet area 14 for oil smoke is greater than the traction capacity of each auxiliary air inlet area 15 for oil smoke, thereby making the main air inlet area 14 The ability to capture oil smoke is greater than the ability of the auxiliary air inlet area 15 to capture oil smoke. With the above-mentioned structural form, when the oil smoke rises to the air inlet surface, most of the oil smoke is within the range covered by the main air inlet area 14, and can be immediately pulled into the smoke hood 1 by the suction force at the main air inlet area 14. When the amount of oil smoke is large, the oil smoke cannot be completely captured from the main air inlet area 14 immediately, so that the excess oil smoke will spread to the surroundings, and the scattered and escaping oil smoke will be captured by the secondary air inlet area 15, thereby ensuring that the oil smoke cannot break through the secondary air inlet area 15 to escape, thereby improving the oil smoke capture ability of the range hood 100, so that the main air inlet area 14 and the secondary air inlet area 15 can fully surround the oil smoke to prevent the oil smoke from escaping, thereby improving the user experience of the operator. The above form can make the air flow speed near the main air inlet area 14 large enough through the main air inlet area 14, so that the continuously flowing airflow forms a natural wind curtain, which is equivalent to setting an invisible structure near the main air inlet area 14, thereby preventing the oil smoke near the main air inlet area 14 from escaping. In addition, the projection of the first smoke collecting chamber 12 in the vertical direction is at least located within the range between the front end of at least one cooking area of the cooker and the center of at least one cooking area, so that when the oil smoke rises to the height of the range hood 100, it can contact the first smoke collecting chamber 12 with the minimum range and directly enter the second smoke collecting chamber 13. Since the main air intake area 14 is opened in the second smoke collecting chamber 13, when the oil smoke enters the second smoke collecting chamber 13, under the action of the traction force of the main air intake area 14, the oil smoke will cover the entire air intake interface of the main air intake area 14 and enter the inside of the smoke collecting hood 1. That is, the oil smoke is completely mixed with the air, and the traction effect of the range hood 100 is maximized.
[0080] In actual use, the kitchen system is a range hood 100 and a stove commonly used in daily kitchens, and the range hood 100 and the stove usually exist in pairs.
[0081] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.
Claims
1. A range hood, characterized in that: The range hood comprises a smoke collecting hood, wherein the air inlet surface of the smoke collecting hood facing the cooker is recessed inwardly to form a first smoke collecting chamber, the top wall of the first smoke collecting chamber is recessed inwardly to form a second smoke collecting chamber, the second smoke collecting chamber is provided with a main air inlet area facing and close to the side wall of the first smoke collecting chamber or the top wall of the second smoke collecting chamber, at least one auxiliary air inlet area is provided in the first smoke collecting chamber, the suction force of the main air inlet area is respectively greater than the suction force of each auxiliary air inlet area, the main air inlet area and at least one auxiliary air inlet area form a surrounding arrangement, and the projection of the first smoke collecting chamber in the vertical direction is at least located within the range between the front end of at least one cooking area of the cooker and the center of at least one cooking area of the cooker.
2. The range hood according to claim 1, characterized in that: The main air inlet area is opened on the side wall of the second smoke collecting cavity facing and close to the first smoke collecting cavity, and the top wall of the first smoke collecting cavity extends obliquely downward from a side close to the main air inlet area.
3. The range hood according to claim 1, characterized in that: The main air inlet area includes one or more main air inlets; And / or, the secondary air inlet area includes one or more secondary air inlets.
4. The range hood according to claim 3, characterized in that: The main air inlet extends along the extension direction of the main air inlet area; And / or, the secondary air inlet extends along an extension direction of the secondary air inlet area.
5. The range hood according to claim 3, characterized in that: The auxiliary air inlet includes an auxiliary air inlet and a secondary air inlet. The auxiliary air inlet is farther away from the main air inlet area than the secondary air inlet, and the air inlet area of the secondary air inlet is larger than the air inlet area of the auxiliary air inlet.
6. The range hood according to claim 1, characterized in that: The air inlet area of the main air inlet area is not less than 100cm 2 , and the air inlet area of the secondary air inlet area is not greater than 200cm 2 ; And / or, the air inlet area of the secondary air inlet area is not less than 50cm 2 , and the air inlet area of the main air inlet area is not greater than 100cm 2 .
7. The range hood according to claim 1, characterized in that: The depression depth of the first smoke collecting chamber is not greater than 15 mm and not less than 70 mm; And / or, the depression depth of the second smoke collecting chamber is not more than 15 mm and not less than 70 mm.
8. The range hood according to claim 1, characterized in that: The smoking range of the auxiliary air inlet area in the direction of the surrounding arrangement is larger than the smoking range of the main air inlet area in the direction of the surrounding arrangement.
9. The range hood according to claim 1, characterized in that: The range hood further comprises an oil guide structure, which is arranged inside the fume collecting hood, and the oil guide structure extends obliquely upward from a position close to the bottom surface of the fume collecting hood, and the projection of the oil guide structure in the height direction of the range hood at least partially covers the main air inlet area; An extension portion is provided at one end of the oil guide structure away from the bottom surface of the smoke collecting hood, and an arc surface is provided on the side of the extension portion facing the main air inlet area. The arc surface extends in the height direction of the range hood, and the center of the arc surface is located on the side of the oil guide structure away from the main air inlet area.
10. A kitchen system, characterized in that: The kitchen system comprises a range hood according to any one of claims 1 to 9; The kitchen system comprises a stove, and a projection of the first smoke collecting chamber in the vertical direction is at least located within the range between the front end of at least one cooking area of the stove and the center of at least one cooking area.