Range hood

Abstract

The utility model discloses a range hood which comprises a machine head and a smoke barrier integrally formed with the machine head and arranged in a smoke barrier area of the machine head, the smoke barrier is arranged in a protruding mode in the direction opposite to the direction in which oil smoke is sucked, and the smoke barrier is arranged in the radial direction in which the oil smoke is sucked. A smoke collecting cavity arranged on the peripheral side of the smoke baffle in a surrounding mode is formed between the side wall face of the smoke baffle and the inner wall face of the machine head, and an air inlet allowing oil smoke to enter is formed in the annular wall of the smoke baffle. According to the range hood, the integrally-formed structure is adopted, the number of external components of the range hood is reduced, a user can clean the area leaked out of the range hood more conveniently, the cleaning work is simplified, and the cleaning convenience of the user is improved. The design of the smoke barrier can effectively reduce the speed of oil smoke and guide the oil smoke to flow around along the surface of the lower panel, so that the traction force of air inlet airflow to the oil smoke is increased, and the oil smoke trapping efficiency is improved. The air inlet is formed in the inner side annular wall of the annular smoke collecting cavity, so that a surrounding effect is formed to wrap the oil smoke, and the oil smoke is effectively prevented from escaping.

Description

Technical Field

[0001] The utility model relates to the field of range hoods. Background Art

[0002] Under certain conditions, the air volume of the range hood is related to the air velocity at the inlet and the cross-sectional area of ​​the inlet. A relatively large air velocity has a greater pulling force on the oil smoke and a better oil smoke collection effect. In order to increase the air velocity, the existing top-suction range hoods have the smoke collecting chamber made into a tapered form and an oil net set at the air inlet position, so that the cross-sectional area of ​​the air inlet is as small as possible while ensuring the air inlet resistance; or a smoke baffle is combined with the smoke collecting chamber to increase the air velocity through the integrated gap between the smoke baffle and the smoke collecting chamber.

[0003] However, the exposed part of the head of the above two types of range hoods has at least two components, and there are other connecting parts between the components. Therefore, after a long period of cooking, a large amount of oil droplets or oil stains will be stuck on the outer surface of the head. Since the head is composed of multiple parts, it is difficult for users to wipe off the oil stains on the outer surface of the range hood when cleaning.

[0004] Therefore, the problems existing in the cleaning and maintenance of the above-mentioned range hoods need to be solved urgently. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood in order to overcome the defects in the cleaning and maintenance of the range hood in the prior art.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A range hood comprises a head and a smoke baffle which is integrally formed with the head and arranged in the smoke baffle area of ​​the head, the smoke baffle protruding in the opposite direction of oil smoke being sucked in, and a smoke collecting chamber is formed between the side wall surface of the smoke baffle and the inner wall surface of the head along the radial direction of oil smoke being sucked in, and an air inlet for oil smoke to enter is provided on the annular wall of the smoke baffle.

[0008] In this technical solution, an integrated molding structure is adopted to reduce the number of external parts of the range hood, making it more convenient for users to clean the area where the range hood leaks, thus simplifying the cleaning work and improving the convenience of cleaning for users. In addition, the design of the smoke baffle is equivalent to the function of the butterfly wing plate in the prior art, which can effectively reduce the speed of the oil smoke and guide the oil smoke to flow around along the surface of the lower panel, thereby increasing the traction of the incoming air flow on the oil smoke and improving the oil smoke capture efficiency. At the same time, an air inlet is set on the inner ring wall of the annular smoke collecting chamber to form a surrounding effect, which can wrap the oil smoke and effectively prevent the oil smoke from escaping, further improving the oil smoke capture effect.

[0009] Preferably, along the direction in which the oil smoke is sucked in, the protruding length of the smoke baffle is not greater than the length of the wall of the smoke collecting cavity away from the smoke baffle.

[0010] In the present technical solution, the design of the smoke baffle can prevent oil smoke from escaping from around the smoke baffle. By recessing the smoke baffle, the oil smoke will be blocked by the inner wall of the surrounding machine head, and thus guided into the smoke collecting chamber and finally into the air inlet, thereby avoiding the escape of oil smoke, allowing the oil smoke to be captured more effectively, and improving the oil fume capture efficiency.

[0011] Preferably, the wall surface of the smoke collecting chamber away from the smoke baffle is arranged at an angle relative to the direction in which the oil smoke is sucked in, and the angle α is in the range of 10°≤α≤45°.

[0012] In this technical solution, the smoke collecting chamber wall surface set at a certain angle can guide the oil smoke to flow in a specific direction, reduce the possibility of oil smoke escaping, and improve the efficiency of oil smoke capture. In addition, the smoke collecting chamber wall surface set at an angle can also adjust the flow direction and speed of the incoming smoke flow, which helps to optimize the overall performance of the range hood.

[0013] Preferably, the cross-sectional dimension of the connection surface between the machine head and the wall is larger than the cross-sectional dimension of the surface of the machine head on the side away from the wall.

[0014] In the present technical solution, such a setting can provide a larger contact area, enhance the stability of the connection between the range hood and the wall, and reduce the risk of failure of the range hood due to loose connection.

[0015] Preferably, the range hood further comprises an oil collection box disposed below the head, and an oil leakage hole capable of dripping into the oil collection box is provided on the side wall surface of the smoke collection chamber close to the smoke baffle plate and at the bottom end of the smoke baffle plate along the height direction of the range hood;

[0016] Along the height direction of the range hood, the orthographic projection range of the oil collecting box extending at least toward one end of the oil leakage hole can cover the oil leakage area of ​​the oil leakage hole.

[0017] In the present technical solution, an oil collecting box and an oil leakage hole are provided to effectively collect and discharge the oil accumulated in the range hood, preventing the oil from accumulating inside the machine, and the oil leakage hole is located at the lowest position of the smoke baffle plate close to the side wall, which helps the oil to drip directly into the oil collecting box, avoiding the possibility of oil dripping onto the ground or other areas.

[0018] Preferably, along the height direction of the range hood, the air inlet is located above the oil leakage hole.

[0019] In the present technical solution, by setting the oil leakage hole below the air inlet, the possibility of oil droplets inside the range hood passing through the air inlet and dripping onto the stove and the pot body is effectively avoided, thereby reducing the pollution of the kitchen environment by oil stains, keeping the kitchen clean, and preventing oil droplets from dripping onto the stove to cause fire or other safety hazards, thereby improving the safety of the kitchen.

[0020] Preferably, there are a plurality of the oil leakage holes, and the plurality of the oil leakage holes are arranged in sequence and spaced apart along the extending direction of the smoke baffle plate on the side wall of the smoke baffle plate.

[0021] In the present technical solution, the provision of multiple oil leakage holes can not only allow the oil to drip into the oil collecting box at any position along the smoke baffle, but also allow the oil accumulated in the smoke baffle to drip evenly into the oil collecting box, ensuring uniform collection of the oil, avoiding cleaning difficulties caused by excessive oil accumulation in certain areas, and maintaining the smoothness and efficiency of oil drainage.

[0022] Preferably, the integrally formed smoke baffle and machine head are made by means of a stamping process.

[0023] In this technical solution, the stamping process can achieve high-precision processing of the plate, ensure the precise control of the size of the smoke shield and the machine head, and ensure the fit and sealing between the components. It can also make the plate form a more uniform and dense structure, improve the strength and stability of the smoke shield and the machine head, and increase the durability and reliability of the product. In addition, the stamping process has the characteristics of high-efficiency production, and can quickly and in large quantities manufacture the structural products after the smoke shield and the machine head are integrally formed, thereby improving production efficiency.

[0024] Preferably, the air inlet is a strip structure that is arranged on the side wall surface of the smoke baffle plate and penetrates along the extension direction of the smoke baffle plate.

[0025] In the present technical solution, the arrangement of the strip structure enables the air inlets to be evenly distributed along the side wall of the smoke baffle, thereby ensuring the uniformity of the air intake and improving the air intake effect of the range hood. It can also increase the area of ​​the air inlet, increase the air intake volume, and improve the comprehensiveness of oil fume capture as well as the air intake speed and efficiency of the range hood.

[0026] Preferably, each side of the smoke baffle has a plurality of air inlets, and the plurality of air inlets are arranged in sequence and spaced apart along an extending direction of the smoke baffle.

[0027] In the present technical solution, the setting of multiple air inlets can ensure uniform air intake of the range hood and improve the efficiency of collecting oil fumes. The setting of multiple air inlets on each side of the smoke baffle increases the air intake area, improves the air intake speed and efficiency of the range hood, and enhances the traction on oil fumes.

[0028] The positive progressive effect of the utility model is that the range hood adopts an integrated structure, which reduces the number of external parts of the range hood, making it more convenient for users to clean the area where the range hood leaks out, thus simplifying the cleaning work and improving the convenience of cleaning for users. In addition, the design of the smoke baffle is equivalent to the function of the butterfly wing plate in the prior art, which can effectively reduce the speed of the oil smoke and guide the oil smoke to flow around along the surface of the lower panel, thereby increasing the traction of the incoming air flow on the oil smoke and improving the oil smoke capture efficiency. At the same time, an air inlet is set on the inner ring wall of the annular smoke collecting chamber to form a surrounding effect, which can wrap the oil smoke and effectively prevent the oil smoke from escaping, further improving the oil smoke capture effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic diagram of the overall structure of a range hood according to a preferred embodiment of the present invention.

[0030] Figure 2 This is a schematic structural diagram of the head portion of a range hood according to a preferred embodiment of the utility model.

[0031] Figure 3 It is a side view of a range hood according to a preferred embodiment of the present invention.

[0032] Figure 4 This is a schematic structural diagram of the machine head and the smoke baffle from the first perspective of a preferred embodiment of the utility model.

[0033] Figure 5 This is a structural schematic diagram of the second viewing angle of the machine head and the smoke baffle of a preferred embodiment of the utility model.

[0034] Figure 6 It is a side view of the machine head and the smoke baffle of a preferred embodiment of the utility model.

[0035] Description of reference numerals:

[0036] Range hood 100

[0037] Machine head 11

[0038] Smoke shield 12

[0039] Smoke chamber 13

[0040] Air Inlet 14

[0041] Oil collecting box 15

[0042] Oil leakage hole 16

[0043] The direction in which the smoke is sucked in is X DETAILED DESCRIPTION

[0044] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0045] like Figure 1-Figure 6 As shown, a range hood 100 is disclosed, and the range hood 100 includes a head 11 and a smoke baffle 12 integrally formed with the head 11 and arranged in the smoke baffle area of ​​the head 11, and the smoke baffle 12 is protrudingly arranged in the opposite direction of the oil smoke being sucked in. At the same time, along the radial direction of the oil smoke being sucked in, a smoke collecting chamber 13 is formed between the side wall surface of the smoke baffle 12 and the inner wall surface of the head 11, and the smoke baffle 12 is provided with an air inlet 14 for the oil smoke to enter. In this embodiment, the smoke collecting chamber 13 is an annular structure arranged around the smoke baffle 12, and the annular structure can be rectangular, circular, elliptical or any other shape.

[0046] Therefore, in this embodiment, an integrated structure is adopted to reduce the number of external components of the range hood 100, making it more convenient for users to clean the area leaking from the range hood 100, thereby simplifying the cleaning work and improving the convenience of cleaning for users. In addition, the design of the smoke baffle 12 is equivalent to the function of the butterfly wing plate in the prior art, which can effectively reduce the speed of the oil smoke and guide the oil smoke to flow around along the surface of the lower panel, thereby increasing the traction of the incoming air flow on the oil smoke and improving the oil smoke capture efficiency. At the same time, an air inlet 14 is provided on the inner ring wall of the annular smoke collecting chamber 13 to form a surrounding effect, which can wrap the oil smoke and effectively prevent the oil smoke from escaping, further improving the oil smoke capture effect.

[0047] In the present embodiment, the integrally formed smoke baffle 12 and machine head 11 are manufactured by means of a stamping process. Specifically, the process is to first stamp in the direction in which the oil smoke is inhaled to form a closed cavity, and then stamp in the opposite direction, that is, to stamp again in the opposite direction in which the oil smoke is inhaled to form the smoke baffle 12. The two stampings form an annular cavity, and then an air inlet 14 is opened on the inner side wall of the annular cavity and on the wall surface close to the smoke baffle 12 to form the annular smoke collecting chamber 13.

[0048] After reverse stamping, a smoke baffle 12 is formed. After the oil smoke moves upward and hits the smoke baffle 12, its speed is reduced due to the obstruction of the smoke baffle 12, and then it flows around along the surface of the smoke baffle 12. When it moves to the position of the air inlet 14, it is pulled by the incoming air flow and thus captured by the range hood 100.

[0049] Therefore, in this embodiment, the stamping process can achieve high-precision processing of the plate, ensure the precise control of the size of the smoke shield 12 and the head 11, and ensure the fit and sealing between the components. It can also make the plate form a more uniform and dense structure, improve the strength and stability of the smoke shield 12 and the head 11, and increase the durability and reliability of the product. In addition, the stamping process has the characteristics of high-efficiency production, and can quickly and in large quantities manufacture the structural products after the smoke shield 12 and the head 11 are integrally formed, thereby improving production efficiency.

[0050] like Figure 3 As shown, along the direction X in which the oil smoke is sucked in, the protruding length of the smoke baffle 12 is not greater than the length of the wall of the smoke collecting chamber 13 away from the side of the smoke baffle 12. In the present embodiment, the protruding length of the smoke baffle 12 is smaller than the outer edge of the machine head 11. The purpose of designing the smoke baffle 12 in this way is to prevent the oil smoke from escaping from all around the smoke baffle 12. By recessing the smoke baffle 12, the oil smoke will be blocked by the inner wall of the surrounding machine head 11, thereby being guided into the smoke collecting chamber 13 and finally into the air inlet 14, thereby avoiding the escape of the oil smoke, allowing the oil smoke to be more effectively captured, and improving the oil fume capture efficiency.

[0051] Preferably, the wall surface of the smoke collecting chamber 13 away from the smoke baffle 12 is set at an angle relative to the direction in which the oil smoke is sucked in, and the range of the angle α is 10°≤α≤45°. Setting the wall surface of the smoke collecting chamber 13 at a certain angle can guide the oil smoke to flow in a specific direction, reduce the possibility of oil smoke escaping, and improve the efficiency of oil smoke capture. In addition, the wall surface of the smoke collecting chamber 13 set at an angle can also adjust the flow direction and speed of the incoming smoke flow, which helps to optimize the overall performance of the range hood 100.

[0052] Moreover, in this embodiment, the depth h1 of the annular smoke collecting cavity 13 is greater than 20 mm, and the width of the bottom is 10 mm ≤ d1 ≤ 100 mm. In other embodiments, the structural dimensions of the smoke collecting cavity 13 can be set as required to meet its normal smoke collecting effect.

[0053] like Figure 3 As shown, the bottom surface of the side of the head 11 facing the oil smoke is in an inclined state, and the cross-sectional size of the connection surface between the head 11 and the wall is larger than the cross-sectional size of the surface of the head 11 away from the wall. That is, from the side view, along the height direction of the range hood 100, the length of the upper head 11 from the wall is larger than the length of the lower head 11 from the wall. This arrangement can provide a larger contact area, enhance the stability of the connection between the range hood 100 and the wall, and reduce the risk of failure of the range hood 100 due to loose connection.

[0054] like Figure 1-Figure 3As shown, the range hood 100 also includes an oil collecting box 15 arranged below the head 11, and an oil leakage hole 16 that can drip into the oil collecting box 15 is provided on the side wall surface of the smoke collecting chamber 13 close to the smoke baffle 12 and at the bottom of the smoke baffle 12 along the height direction of the range hood 100, that is, it is located on the side surface of the smoke baffle 12 close to the wall, and the visible outer surface of the head 11 part is inclined, and the small sticky oil droplets on the outer surface will gather into large oil droplets and flow along the inclined smoke baffle 12 until they drip into the oil collecting box 15 through the oil leakage hole 16, so as to facilitate the accumulated oil in the concave cavity formed by the secondary impact to flow into the oil collecting box 15.

[0055] Specifically, Figure 3 As shown, along the height direction of the range hood 100 , the orthographic projection range of the oil collecting box 15 extending at least toward one end of the oil leakage hole 16 can cover the oil leakage area of ​​the oil leakage hole 16 .

[0056] In this embodiment, the oil collecting box 15 and the oil leakage hole 16 are provided to effectively collect and discharge the oil accumulated in the range hood 100, avoiding the accumulation of oil in the machine, and the oil leakage hole 16 is located at the lowest position of the smoke baffle 12 close to the side wall, which helps the oil to drip directly into the oil collecting box 15, avoiding the possibility of oil dripping onto the ground or other areas.

[0057] And, if Figure 6 As shown, along the height direction of the range hood 100, the air inlet 14 is located above the oil leakage hole 16, which can effectively prevent the possibility of oil droplets inside the range hood 100 passing through the air inlet 14 and dripping onto the stove and the pot body, thereby reducing the pollution of oil to the kitchen environment, keeping the kitchen clean, and preventing oil droplets from dripping onto the stove to cause fire or other safety hazards, thereby improving the safety of the kitchen.

[0058] In addition, in this embodiment, there are multiple oil leakage holes 16, which are arranged in sequence and spaced apart on the side wall of the smoke baffle 12 along the extending direction of the smoke baffle 12. The provision of multiple oil leakage holes 16 can not only allow oil to drip into the oil collecting box 15 at any position along the smoke baffle 12, but also allow the oil accumulated in the smoke baffle 12 to drip into the oil collecting box 15 evenly, ensuring the uniform collection of oil, avoiding the difficulty of cleaning caused by excessive accumulation of oil in certain areas, and maintaining the smoothness and efficiency of oil drainage.

[0059] like Figure 3As shown, the air inlet 14 is a strip structure that penetrates the side wall of the smoke baffle 12 along the extension direction of the smoke baffle 12. The arrangement of the strip structure can make the air inlet 14 present a uniform distribution along the side wall of the smoke baffle 12, thereby ensuring the uniformity of air intake, improving the air intake effect of the range hood 100, and can also increase the area of ​​the air inlet 14, increase the air intake volume, and improve the comprehensiveness of oil fume capture and the air intake speed and efficiency of the range hood 100.

[0060] Alternatively, in other embodiments, each side of the smoke baffle 12 has a plurality of air inlets 14, and the plurality of air inlets 14 are arranged in sequence and spaced apart along the extension direction of the smoke baffle 12. The arrangement of the plurality of air inlets 14 can ensure uniform air intake of the range hood 100 and improve the efficiency of collecting oil fumes. In addition, the arrangement of the plurality of air inlets 14 on each side of the smoke baffle 12 increases the area of ​​air intake, improves the air intake speed and efficiency of the range hood 100, and enhances the traction of oil fumes.

[0061] 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 attached 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 fall within the protection scope of the utility model.

Claims

1. A range hood, characterized in that: It includes a machine head and a smoke baffle which is integrally formed with the machine head and arranged in the smoke baffle area of ​​the machine head. The smoke baffle is protruding in the opposite direction of the oil smoke being inhaled, and a smoke collecting cavity is formed between the side wall surface of the smoke baffle and the inner wall surface of the machine head along the radial direction of the oil smoke being inhaled, which is surrounded by the smoke baffle, and an air inlet for the oil smoke to enter is provided on the annular wall of the smoke baffle.

2. The range hood according to claim 1, characterized in that: Along the direction in which the oil smoke is sucked in, the protruding length of the smoke baffle is not greater than the length of the wall of the smoke collecting cavity away from the smoke baffle.

3. The range hood according to claim 1, characterized in that: The wall surface of the smoke collecting chamber away from the smoke baffle plate is arranged at an angle relative to the direction in which the oil smoke is sucked in, and the range of the angle α is 10°≤α≤45°.

4. The range hood according to claim 1, characterized in that: The cross-sectional dimension of the connection surface between the machine head and the wall is larger than the cross-sectional dimension of the surface of the machine head on the side away from the wall.

5. The range hood according to claim 1 or 4, characterized in that: The range hood further comprises an oil collection box disposed below the head, and an oil leakage hole capable of dripping into the oil collection box is provided on the side wall surface of the smoke collection chamber close to the smoke baffle and at the bottom end of the smoke baffle along the height direction of the range hood; Along the height direction of the range hood, the orthographic projection range of the oil collecting box extending at least toward one end of the oil leakage hole can cover the oil leakage area of ​​the oil leakage hole.

6. The range hood according to claim 5, characterized in that: Along the height direction of the range hood, the air inlet is located above the oil leakage hole.

7. The range hood according to claim 5, characterized in that: There are a plurality of oil leakage holes, and the plurality of oil leakage holes are arranged in sequence and spaced apart along the extending direction of the smoke baffle plate on the side wall of the smoke baffle plate.

8. The range hood according to claim 1, characterized in that: The integrally formed smoke shield and machine head are made by means of stamping technology.

9. The range hood according to claim 1, characterized in that: The air inlet is a strip structure that penetrates the side wall surface of the smoke baffle along the extension direction of the smoke baffle.

10. The range hood according to claim 1, characterized in that: The smoke baffle on each side has a plurality of air inlets, and the plurality of air inlets are arranged in sequence and spaced apart along the extending direction of the smoke baffle.

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