Range hood

Abstract

The embodiment of the utility model discloses a range hood, which comprises a fan box, a fan box, a fan cover and a fan cover, the smoke collecting box assembly is mounted at the lower part of the fan box and is communicated with the fan box through an obliquely arranged smoke inlet channel; the inclination direction of the smoke inlet channel is opposite to that of the fan, and a preset included angle is formed. The fan box and the smoke collecting box assembly are communicated through the obliquely-arranged smoke inlet channel, and the fan and the smoke inlet channel are obliquely arranged in the opposite directions, so that the wind direction suction force generated by the fan is consistent with the transverse lift force borne by oil smoke particles in direction, the transverse lift force is improved, the oil smoke flowing path is optimized, and the oil smoke flowing efficiency is improved. Oil smoke particles can be guided into the smoke inlet channel more smoothly, gathering of oil smoke at the top end of the smoke collecting cavity is reduced, oil smoke dissipation is reduced, and the smoke suction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen home appliance technical field, especially a kind of range hood. BACKGROUND

[0002] Because the oil fume in kitchen is mostly granular, it will be affected by lateral lift in the process of rising, and will slowly dissipate outward, especially in the flow field with velocity gradient, the fan in the fan box provides gradient velocity for the oil fume in the smoke collection box. Therefore, the previous side suction range hood is designed with forward inclination, to ensure that the oil fume under the action of lateral lift can better enter the fan box.

[0003] However, in the case of thinning of the smoke collection box, especially when the smoke collection cavity is thin rectangular, part of the oil fume will gather at the top end of the smoke collection cavity under the action of lateral lift, which leads to the oil fume cannot effectively enter the fan box, reducing the smoke suction efficiency of the range hood, and possibly increasing the influence of oil fume on other areas of the kitchen. SUMMARY

[0004] The range hood provided by the present application is connected with the fan box and the smoke collection box assembly through the obliquely arranged smoke inlet channel, and the fan is obliquely arranged in the opposite direction of the smoke inlet channel. The wind direction suction force generated by the fan is consistent with the direction of the lateral lift received by the oil fume particles, thereby improving the lateral lift and optimizing the oil fume flow path, which helps the oil fume particles to be more smoothly guided into the smoke inlet channel, reduces the gathering of oil fume at the top end of the smoke collection cavity, reduces the oil fume dissipation, and improves the smoke suction efficiency. The technical solution of the present application is as follows:

[0005] In one aspect, the present application provides a range hood, comprising:

[0006] a fan box, a fan is installed inside the fan box, and the fan is obliquely arranged relative to the fan box;

[0007] a smoke collection box assembly is installed at the lower part of the fan box and is connected with the fan box through an obliquely arranged smoke inlet channel;

[0008] The inclination direction of the smoke inlet channel is opposite to the inclination direction of the fan, forming a preset included angle.

[0009] In some specific embodiments, the preset included angle is greater than or equal to 45° and less than or equal to 90°.

[0010] In some specific embodiments, the smoke collection box assembly comprises a fixed box body and a movable box body, the movable box body is sleeved in the fixed box body, and the movable box body is connected with the inside of the fixed box body;

[0011] The fixed box is arranged in a containing groove of the installation wall, and a driving device is arranged in the fixed box, and the driving device is used to drive the movable box to move away from the installation wall.

[0012] In some specific embodiments, a first air inlet is arranged on the side of the movable box parallel to the installation wall.

[0013] The bottom of the movable box is provided with the first air inlet.

[0014] In some specific embodiments, an air outlet is arranged on the top of the fixed box, a second air inlet is arranged on the bottom of the fan box, and the air outlet and the second air inlet are communicated through the smoke passage.

[0015] In some specific embodiments, the fixed box is arranged flush with the installation wall.

[0016] In some specific embodiments, the movable box is arranged on the side of the fixed box close to the smoke passage, a preset cavity is arranged between the bottom of the movable box and the bottom of the fixed box, and a first movable cover plate is arranged on the preset cavity.

[0017] A first oil collecting cup and a first flow guide plate are arranged in the preset cavity, and the first flow guide plate is arranged above the first oil collecting cup.

[0018] In some specific embodiments, the movable box has the same outer contour as the fixed box, and a second movable cover plate is arranged on the bottom of the movable box.

[0019] A second oil collecting cup is arranged on the bottom of the movable box, and a second flow guide plate is arranged above the second oil collecting cup.

[0020] In some specific embodiments, the driving device is a crank slider mechanism.

[0021] The crank slider mechanism comprises a rotating shaft driven by a bevel gear mechanism arranged in the fixed box, a crank fixed on the rotating shaft and a connecting rod hinged to the crank, the other end of the connecting rod is hinged to the movable box, a guide rail is arranged on the inner wall of the fixed box, and a sliding sleeve is arranged on the side of the movable box and sleeved on the outside of the guide rail.

[0022] In some specific embodiments, a smoke baffle is arranged on the side of the movable box parallel to the installation wall.

[0023] By adopting the above technical scheme, the oil extractor provided by the present application has the following beneficial effects:

[0024] The oil fume machine provided by the embodiment of the application comprises a fan box, a fan is internally installed in the fan box, the fan is arranged in an inclined manner relative to the fan box, a smoke collecting box assembly is installed at the lower part of the fan box and is communicated with the fan box through an inclined smoke inlet channel, the inclined direction of the smoke inlet channel is opposite to the inclined direction of the fan, and a preset included angle is formed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A sectional view of the oil fume machine provided by the embodiment of the application;

[0027] Figure 2 A structural schematic view of the oil fume machine provided by the embodiment of the application;

[0028] The following will make a supplementary description to the drawings:

[0029] 1, fan box; 2, smoke collecting box assembly; 21, fixed box body; 22, movable box body; 3, smoke inlet channel; 4, fan; 5, driving device; 6, smoke baffle. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be described clearly and completely in the following with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the application.

[0031] The terms "one embodiment" or "an embodiment” as may be used herein as referring to a particular feature, structure, or characteristic, can be understood as referring to at least one implementation of the present application. In the description of the application, the terms "upper" and "lower" refer to the orientation of the apparatus as shown in the figures, and are used for convenience to describe the application and its components as oriented in the figures. It is understood that no limitation of the application is made by use of these terms. The terms "first" and "second” are used to differentiate between similar objects, and are not necessarily used to describe a particular order or sequence. It is understood that such terms are used interchangeably, and that the embodiments of the application described herein can be carried out in other than the order shown in the figures.

[0032] When a range of values is disclosed, unless otherwise stated the range is a continuous range and includes any and all sub-ranges thereof. For example, a range of "1 to 10” is understood to include any and all sub-ranges between (and including) the minimum value of 1 and the maximum value of 10, that is, all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less, as well as all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less, as well as all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less. In this specification, unless otherwise indicated, all ranges are inclusive of both the minimum and maximum values.

[0033] Referring to Figure 1 and Figure 2 , an oil smoke machine is provided, comprising:

[0034] The fan box 1 is internally installed with a fan 4, and the fan 4 is arranged obliquely relative to the fan box 1. Specifically, the fan box 1 is the main structural part of the oil smoke machine, and is usually made of a solid material to ensure the stability and durability of the fan 4 when it operates at a high speed. The fan 4 is the core component of the oil smoke machine, and is responsible for generating suction to suck oil smoke from the cooking area into the inside of the fan box 1. The fan 4 is arranged obliquely relative to the fan box 1, which helps to optimize the airflow path, so that the wind direction of the fan 4 is consistent with the direction of the lateral lift received by the oil smoke particles, thereby improving the lateral lift, so that the oil smoke particles are more smoothly guided into the smoke inlet channel 3, reducing the escape of oil smoke during the rising process, and improving the oil smoke capture efficiency.

[0035] The smoke collecting box assembly 2 is installed at the lower part of the fan box 1 and communicates with the fan box 1 through the smoke inlet channel 3 arranged obliquely. Specifically, the smoke collecting box assembly 2 is the part of the range hood for collecting and preliminarily processing the oil fume, and is usually located below the fan box 1, which helps to preliminarily collect and separate the oil fume before it is sucked into the fan box 1. The smoke inlet channel 3 is the channel connecting the fan box 1 and the smoke collecting box assembly 2, and the oblique arrangement thereof helps to guide the oil fume to flow smoothly from the smoke collecting box assembly 2 into the fan box 1, reduces the dispersion of the oil fume during the rising process, and improves the smoke suction efficiency.

[0036] The oblique direction of the smoke inlet channel 3 is opposite to the oblique direction of the fan 4, forming a preset included angle. Preferably, the preset included angle is greater than or equal to 45° and less than or equal to 90°, which can realize higher oil fume collection efficiency and better airflow dynamics performance, thereby improving the overall performance and user experience of the range hood. The opposite oblique directions of the smoke inlet channel 3 and the fan 4 help to form a kind of guiding airflow, which can more effectively guide the oil fume from the cooking area into the fan box 1, ensuring that the suction force generated by the fan 4 is consistent with the direction of the lateral lift force when the oil fume rises, thereby improving the efficiency of the oil fume being sucked into the fan box 1, reducing the dispersion of the oil fume during the rising process, and making more oil fume be sucked into the smoke inlet channel 3 rather than diffusing into the kitchen space.

[0037] In some specific embodiments, the preset included angle is greater than or equal to 45° and less than or equal to 90°. Specifically, if it is less than 45°, the fan 4 will be tilted too much, or the smoke inlet channel 3 will be tilted too much. Whether the fan 4 is tilted too much or the smoke inlet channel 3 is tilted too much, it will cause the corresponding box structure to become wider, thereby making the overall structure complex and affecting the overall appearance of the range hood. If it is greater than 90°, it will affect the wind direction of the fan 4, reduce the wind power of the fan 4, reduce the lateral lift force, and reduce the oil fume suction effect.

[0038] In some specific embodiments, please refer to Figure 1The smoke collecting box assembly 2 comprises a fixed box body 21 and a movable box body 22, the movable box body 22 is sleeved in the fixed box body 21, and the movable box body 22 is in communication with the inside of the fixed box body 21; specifically, the fixed box body 21 is a static part of the smoke collecting box assembly 2, is usually fixedly installed in the accommodating groove of the wall body, provides support for the movable box body 22, and contains necessary mechanical structures and a driving device 5; the movable box body 22 is a movable structure, is sleeved in the inside of the fixed box body 21 and is in communication with the inside of the fixed box body 21, and the movable box body 22 moves in the inside of the fixed box body 21. When the range hood is in a non-working state, the movable box body 22 is telescopic in the fixed box body 21 and overlaps the fixed box body 21, the smoke collecting box assembly 2 can be completely accommodated in the wall body, so that the space occupied by the smoke collecting box assembly 2 in the non-working state is minimized, especially suitable for a kitchen environment with limited space, not only can save space, but also makes the kitchen look more clean and beautiful; when the range hood is in a working state, the movable box body 22 moves outward and at least partially protrudes from the fixed box body 21, thereby increasing the volume of the smoke collecting cavity assembly, so that the smoke collecting cavity assembly 2 can collect more oil fumes, and then through the telescopic movement of the movable box body 22, the optimized use of space and the improvement of the smoke suction efficiency are realized, so that the range hood can not only adapt to limited space, but also provide efficient smoke suction performance when working.

[0039] The fixed box body 21 is arranged in the accommodating groove of the installation wall body, the driving device 5 is arranged in the fixed box body 21, and the driving device 5 is used for driving the movable box body 22 to move away from the installation wall body. Specifically, the fixed box body 21 is arranged in the accommodating groove specially arranged on the installation wall body, and this embedded installation mode can make the fixed box body 21 closely combined with the wall body, so as to ensure the stability and aesthetics of the structure. The driving device 5 is the key to the movement of the whole movable box body 22, can be an electric, pneumatic or hydraulic system, is responsible for providing power, so that the movable box body 22 can move telescopically.

[0040] In some specific embodiments, a first air inlet is arranged on the side surface of the movable box body 22, which is parallel to the installation wall body, can increase the range of smoke suction, so that the oil fumes can be sucked into the smoke collecting box assembly 2 before being diffused, and the smoke suction efficiency is improved, and at the same time, the side air inlet is helpful to form a more reasonable air flow path, so that the oil fumes can be more smoothly sucked into the smoke collecting box assembly 2.

[0041] Alternatively, a first air inlet is arranged on the bottom of the movable box body 22. Specifically, the first air inlet is arranged on the bottom of the movable box body 22, so that the oil fumes can be directly sucked from the cooking area, especially when a flat-bottomed pot or a frying pan and the like is used as a kitchen utensil, the bottom air inlet can be closer to the oil fume source, which is helpful to reduce the diffusion of the oil fumes in the rising process and directly collect the oil fumes in the place where the oil fumes are generated.

[0042] In some specific embodiments, the top of the fixed box 21 is provided with an air outlet, and the bottom of the fan box 1 is provided with a second air inlet. The air outlet and the second air inlet are communicated through the smoke inlet channel 3 to form an internal airflow circulation path of the range hood, ensuring that the oil fume can be effectively sucked from the cooking area, treated by the fan box 1, and then discharged, improving the smoke suction efficiency.

[0043] In some specific embodiments, please refer to Figure 1 , the fixed box 21 is flush with the installation wall. Specifically, the fixed box 21 of the range hood is flush with the wall, which can provide a more clean and beautiful appearance, so that the range hood can be almost "hidden" on the wall surface when not in use, and integrated with the overall decoration style of the kitchen, reducing the part of the range hood protruding from the wall, thereby saving the kitchen space. Especially in the kitchen environment with limited space, this design can reduce the occupation of the activity area. At the same time, the design of the fixed box 21 flush with the wall surface simplifies the cleaning work, because there is no protruding part to accumulate oil fume and dust. Users can more easily wipe the surface to keep the range hood and the surrounding wall clean.

[0044] In some specific embodiments, please continue to refer to Figure 1 , the movable box 22 is arranged on the side of the fixed box 21 close to the smoke inlet channel 3, and a preset cavity is arranged between the bottom of the movable box 22 and the bottom of the fixed box 21. A first movable cover plate is installed on the preset cavity. Specifically, a preset cavity for placing a first oil collecting cup and a first flow guide plate is arranged between the bottom of the movable box 22 and the bottom of the fixed box 21, and a first movable cover plate is installed on the preset cavity. Users can easily remove the first movable cover plate to facilitate cleaning and replacing the first oil collecting cup in the preset cavity.

[0045] A first oil collecting cup and a first flow guide plate are arranged in the preset cavity, and the first flow guide plate is arranged above the first oil collecting cup. Specifically, a sensor can be installed in the first oil collecting cup, which can monitor the oil amount in the first oil collecting cup in real time. When the oil reaches a certain level, the user can be automatically reminded to clean, avoiding oil spillage. At the same time, the first flow guide plate is arranged above the first oil collecting cup, and the oil can flow into the first oil collecting cup along the first flow guide plate, improving the collection efficiency of oil fume.

[0046] In some specific embodiments, the outer contour of the movable box 22 is the same as that of the fixed box 21, and a second movable cover plate is arranged near the bottom of the movable box 22. Specifically, the outer contour of the movable box 22 is the same as that of the fixed box 21, which makes the appearance of the range hood more beautiful and helps to reduce the vibration and noise of the range hood when working. At the same time, the second movable cover plate is arranged near the bottom of the movable box 22, and users can easily remove the second movable cover plate to facilitate cleaning and replacing the second oil collecting cup.

[0047] A second oil collection cup is installed at the bottom of the movable housing 22, and a second deflector plate is installed above the second oil collection cup. Specifically, a sensor can be installed inside the second oil collection cup to monitor the amount of grease in the cup in real time. When the grease reaches a certain level, it can automatically remind the user to clean it to prevent grease overflow. At the same time, the second deflector plate above the second oil collection cup allows grease to flow into the second oil collection cup along the deflector plate, improving the efficiency of oil fume collection.

[0048] In some specific embodiments, the driving device 5 is a crank-slider mechanism;

[0049] The crank-slider mechanism includes a rotating shaft driven by a bevel gear mechanism and disposed within a fixed housing 21. A crank and a connecting rod hinged to the crank are fixed on the rotating shaft. The other end of the connecting rod is hinged to a movable housing 22. A guide rail is provided on the inner wall of the fixed housing 21, and a sliding sleeve is provided on the side of the movable housing 22 and fitted onto the outside of the guide rail. The crank-slider mechanism converts the rotational motion of the rotating shaft within the fixed housing 21 into the linear motion of the movable housing 22. By adjusting the transmission ratio of the bevel gear mechanism, the moving speed and distance of the movable housing 22 can be precisely controlled to meet different working requirements.

[0050] In some specific embodiments, the drive device 5 is an electric push rod. The electric push rod can provide precise motion control, allowing the extension and retraction of the movable housing 22 to be precisely adjusted to adapt to different usage needs. Furthermore, the electric push rod is easy to operate; users can control the extension and retraction of the movable housing through a simple switch or remote control, improving ease of use. At the same time, the electric push rod has a fast response speed, quickly driving the movable housing 22 to the desired position, improving the response efficiency of the range hood. In addition, electric push rods are generally more energy-efficient than pneumatic or hydraulic systems because they only consume electrical energy when needed, have high energy conversion efficiency, and are relatively simple to maintain, as they are typically composed of motors, gears, and screws, etc., and the maintenance and replacement of these components are relatively easy.

[0051] For some specific implementation methods, please refer to Figure 1 and Figure 2 The movable housing 22 has a smoke baffle 6 on its side parallel to the mounting wall. Specifically, the smoke baffle 6 can prevent the fumes from spreading to both sides during the upward process, forcing the fumes to enter the smoke inlet channel 3 along the guide of the smoke baffle, so that the fumes are captured more effectively, reducing the possibility of fumes escaping into the kitchen air, especially when a large amount of fumes are generated during cooking, thereby improving the smoke extraction efficiency.

[0052] This application discloses a range hood, including: a fan box with a fan installed inside, the fan being inclined relative to the fan box; and a smoke collection box assembly installed at the lower part of the fan box and connected to the fan box through an inclined smoke inlet channel; the inclination direction of the smoke inlet channel is opposite to the inclination direction of the fan, forming a preset angle. The fan box and smoke collection box assembly of this application are connected by the inclined smoke inlet channel, and the fan is inclined in the opposite direction to the smoke inlet channel, so that the draft force generated by the fan is consistent with the lateral lift force on the oil fume particles, thereby increasing the lateral lift force, optimizing the oil fume flow path, helping the oil fume particles to be guided more smoothly into the smoke inlet channel, reducing the accumulation of oil fumes at the top of the smoke collection chamber, reducing oil fume dispersion, and improving smoke extraction efficiency.

[0053] The above description is only an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A range hood characterized by, The utility model relates to a smoke collecting device, including: A fan box (1) is internally installed with a fan (4), and the fan (4) is arranged in an inclined manner relative to the fan box (1); A smoke collecting box assembly (2) is installed at the lower part of the fan box (1) and is communicated with the fan box (1) through an inclined smoke inlet channel (3); The inclined direction of the smoke inlet channel (3) is opposite to the inclined direction of the fan (4), forming a preset included angle.

2. The range hood according to claim 1, wherein The preset included angle is greater than or equal to 45 DEG and less than or equal to 90 DEG.

3. The range hood according to claim 1, wherein The smoke collecting box assembly (2) comprises a fixed box body (21) and a movable box body (22), the movable box body (22) is sleeved in the fixed box body (21), and the movable box body (22) is communicated with the inside of the fixed box body (21); The fixed box body (21) is arranged in the accommodating groove of the installation wall, and a driving device (5) is arranged in the fixed box body (21), and the driving device (5) is used for driving the movable box body (22) to move away from the installation wall.

4. A range hood according to claim 3, characterized in that A first air inlet is formed in the side of the movable box body (22) parallel to the installation wall;Or A first air inlet is formed in the bottom of the movable box body (22).

5. The range hood according to claim 3, wherein An air outlet is formed in the top of the fixed box body (21), a second air inlet is formed in the bottom of the fan box (1), and the air outlet and the second air inlet are communicated through the smoke inlet channel (3).

6. The range hood according to claim 3, wherein The fixed box body (21) is flush with the installation wall.

7. The range hood according to claim 3, wherein The movable box body (22) is arranged on the side of the fixed box body (21) close to the smoke inlet channel (3), a preset cavity is arranged between the bottom of the movable box body (22) and the bottom of the fixed box body (21), and a first movable cover plate is arranged on the preset cavity. A first oil collecting cup and a first flow guide plate are arranged in the preset cavity, and the first flow guide plate is arranged above the first oil collecting cup.

8. The range hood according to claim 3, wherein The outer contour of the movable box body (22) is the same as that of the fixed box body (21), and a second movable cover plate is arranged on the bottom of the movable box body (22); A second oil collecting cup is arranged on the bottom of the movable box body (22), and a second flow guide plate is arranged above the second oil collecting cup.

9. The range hood according to claim 3, wherein The driving device (5) is a crank slider mechanism; The crank slider mechanism comprises a rotating shaft driven by a bevel gear mechanism arranged in the fixed box body (21), a crank and a connecting rod hinged to the crank are fixed on the rotating shaft, the other end of the connecting rod is hinged to the movable box body (22), a guide rail is arranged on the inner wall of the fixed box body (21), and a sliding sleeve is arranged on the side of the movable box body (22) and sleeved outside the guide rail.

10. The range hood according to claim 3, wherein A smoke baffle (6) is arranged on the side of the movable box body (22) parallel to the installation wall.

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