Accelerated smoking device and range hood thereof

Abstract

The present invention discloses an accelerated smoking device and a range hood thereof, the device comprising: a flow guide having an air cavity inside, an air inlet connected to the air cavity being arranged on the flow guide, an outer side wall of the flow guide being a flow guide surface arranged from bottom to top and tilted inward, an annular air passage connected to the air cavity being arranged on the periphery of the flow guide surface, the annular air passage having an air jet facing upward or obliquely upward, the air outlet direction of the air jet facing the flow guide surface; an air supply member for providing an air source for the air inlet. The accelerated smoking device of the present invention has a simple and ingenious structure, and adopts a jet active guiding method, which is conducive to further accelerating the inhalation of oil smoke, preventing the oil smoke from escaping, and greatly improving the smoking effect under the condition of instantaneous large amount of smoke.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to an accelerated suction device and a range hood thereof. Background Art

[0002] Existing high-performance range hoods can fully meet the requirements for most usage situations. Fume overflow mainly occurs when a large amount of fumes are suddenly generated. After the high-speed rising fumes hit the hood or the smoke baffle, the suction speed of the smoke outlet is insufficient and it cannot be quickly sucked into the range hood. As a result, it overflows to the outer sides of the two stoves, resulting in a poor user experience.

[0003] In addition, an oil net is designed at the smoke outlet. When the oil smoke is inhaled, it collides with the oil net and produces a smaller local vortex, which affects the smooth inhalation of the oil smoke. The speed during inhalation is relatively small, and a large amount of instantaneous oil smoke is prone to overflow. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes an accelerated smoking device with a simple and ingenious structure. It adopts a jet active guidance method to further accelerate the inhalation of oil smoke, prevent the oil smoke from escaping, and greatly improve the smoking effect under the condition of instantaneous large amount of smoke.

[0005] The present invention also provides a range hood with the accelerated smoking device. By arranging the deflector of the accelerated smoking device at the smoke inlet, the smoke is further accelerated to be sucked into the smoke collecting hood through active jet guidance, and the air intake is ensured to be smoother, thereby significantly improving the instantaneous smoking effect.

[0006] According to the above-mentioned accelerated smoking device, it is realized by the following technical solutions:

[0007] A device for accelerating smoking, comprising: a deflector with an air cavity inside, an air inlet connected to the air cavity being arranged on the deflector, an outer wall of the deflector being a deflecting surface arranged from bottom to top and inclined inwardly, an annular air passage connected to the air cavity being arranged on the periphery of the deflecting surface, the annular air passage having an air jet facing upward or obliquely upward, an air outlet direction of the air jet facing the deflecting surface; and an air supply member, the air supply member being used to provide an air source for the air inlet.

[0008] In some embodiments, the deflector includes: a shell having the air cavity, the air inlet is provided at the top of the shell, the outer wall of the shell is the guide surface, and a plurality of air outlet slits connected to the air cavity are circumferentially spaced at the lower end of the guide surface; a diffuser ring, the diffuser ring includes a bottom plate and a side plate connected to each other, the bottom plate abuts and is connected to the bottom of the shell, the side plate is arranged on the periphery of the guide surface, and the annular air duct is formed between the side plate and the guide surface, and the annular air duct is connected to each of the air outlet slits.

[0009] In some embodiments, the bottom plate is a circular flat plate, or the bottom plate is an annular flat plate with a central hole; and the side plates are parallel to the guide surface.

[0010] In some embodiments, the deflector includes: a diffuser ring, the diffuser ring having a concave cavity opening upward; a shell, the shell having a cavity opening downward, the air inlet connected to the cavity is provided at the top of the shell, the outer wall of the shell is the guide surface, a plurality of air outlet slits are circumferentially spaced at the lower end of the guide surface, the shell is inserted into the concave cavity and abuts against the bottom of the concave cavity, the air cavity is formed by the cavity and the bottom of the concave cavity, the annular air duct is formed between the side wall of the concave cavity and the guide surface, and the annular air duct is connected to the air cavity through the air outlet slit.

[0011] In some embodiments, a side wall of the cavity is parallel to the guide surface.

[0012] In some embodiments, the deflector is a shell having the air cavity, the air inlet is provided at the top of the shell, the outer wall of the shell is the guide surface, and an annular flange extending outward and upward is integrally formed along the lower end of the guide surface, the annular air channel is formed between the annular flange and the guide surface, and a plurality of air outlet slits are circumferentially spaced at the lower end of the guide surface, and the opposite ends of each of the air outlet slits are respectively connected to the air cavity and the annular air channel.

[0013] In some embodiments, an adapter having an air duct is further included, the air supply member is an air curtain fan, and the air supply port of the air curtain fan is connected to the air inlet through the air duct.

[0014] In some embodiments, the adapter is arranged above the deflector, and one end of the adapter is provided with a mounting cavity suitable for installing the air curtain fan, and the other end is provided with a mounting port extending toward the air inlet, the air curtain fan is installed in the mounting cavity, the inlet of the air duct is connected to the air supply port, and the outlet of the air duct is connected to the air inlet through the mounting port.

[0015] In some embodiments, an adapter having an air duct is further included, the air supply component is a range hood fan, an air outlet is provided at the air outlet end of the range hood fan, and the air outlet is selectively connected to the air inlet through the air duct.

[0016] In some embodiments, a switch valve is provided between the air duct and the air outlet, or a switch valve is provided in the air duct.

[0017] According to a range hood provided above, it is implemented by the following technical scheme: a range hood, comprising: a smoke collecting hood, wherein at least one smoke inlet is provided at the bottom of the smoke collecting hood, and a folded edge extending toward the inside of the smoke collecting hood is provided on the circumferential edge of the smoke inlet; a wind cabinet assembly, wherein the wind cabinet assembly comprises a box body and a volute fan, wherein the box body is arranged on the top of the smoke collecting hood and connected to the inside of the smoke collecting hood, and the volute fan is arranged in the box body; the accelerated smoking device as described above, wherein the accelerated smoking devices corresponding to the number of the smoke inlets are connected in the smoke collecting hood, each of the deflectors extends into the corresponding folded edge, and an annular smoking channel for oil smoke to pass through is formed between the folded edge and the deflector, and the annular smoking channel respectively connects the air jet port, the inside of the smoke collecting hood and the outside of the smoke collecting hood.

[0018] In some embodiments, it also includes a fixing member arranged in the smoke collecting hood, and each of the deflectors is provided with a fixing member on the top, and the fixing members are respectively connected to the top of the corresponding deflector and the upper end of the corresponding folded edge, and the fixing member is provided with a ventilation portion for airflow to pass through at the position of the annular smoking channel, and the interior of the smoke collecting hood is connected to the annular smoking channel through the ventilation portion.

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

[0020] The accelerated smoking device of the present invention designs the outer side wall of the deflector with an air cavity as a deflector surface, and adds an annular air duct connected to the air cavity on the periphery of the deflector surface. The annular air duct has an air jet port facing upward or obliquely upward. The airflow ejected from the air jet port will adhere to the deflector surface and flow upward to form an air curtain. The structure is simple and ingenious, and the active jet guidance method is adopted to further accelerate and smoothly inhale the oil smoke on the periphery of the deflector into the smoke collecting hood, thereby greatly improving the smoking effect under the condition of a large amount of oil smoke in an instant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded view of the smoking acceleration device in Example 1 of the present invention;

[0022] Figure 2 is a cross-sectional view of the smoking acceleration device in Embodiment 1 of the present invention;

[0023] Figure 3 is an exploded view of the first deflector in Example 1 of the present invention;

[0024] Figure 4 is a cross-sectional view of the second deflector in Example 1 of the present invention;

[0025] Figure 5 is a cross-sectional view of the third deflector in Example 1 of the present invention;

[0026] Figure 6 is a schematic structural diagram of a range hood fan in Embodiment 1 of the present invention;

[0027] Figure 7 is a schematic structural diagram of a range hood in Embodiment 2 of the present invention;

[0028] Figure 8 is a cross-sectional view of the range hood in Embodiment 2 of the present invention, in which the wind cabinet component is hidden;

[0029] Fig. 9 This is a cross-sectional view from another angle of the range hood in Embodiment 2 of the present invention, in which the wind cabinet component is hidden.

[0030] In the figure: 1- deflector, 101- air cavity, 102- air inlet, 103- guide surface, 104- annular air channel, 11- shell, 112- air outlet slot, bottom surface 113, 12- diffuser ring, 1201- concave cavity, 121- bottom plate, 122- side plate;

[0031] 2-air curtain fan, 201-air outlet;

[0032] 3-hood fan, 301-air outlet, 302-air outlet, 31-volute, 32-motor, 33-impeller;

[0033] 4-adapter, 401-air duct, 402-installation cavity, 403-installation port;

[0034] 5-smoke collecting hood, 501-folded edge, 502-annular smoking passage, 503-air inlet portion, 504-smoke inlet surface;

[0035] 6-wind cabinet assembly, 61-box;

[0036] 7-fixing part, 701-ventilation part. DETAILED DESCRIPTION

[0037] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0038] Example 1

[0039] refer to Figure 1-3 The present embodiment provides a smoking acceleration device, including a deflector 1 and an air supply member (not shown in the figure) for providing a wind source, wherein the deflector 1 has an air cavity 101 inside, and an air inlet 102 connected to the air cavity 101 is provided at the top of the deflector 1. The outer wall of the deflector 1 is a deflector surface 103 arranged from bottom to top and tilted inward. In the present embodiment, the deflector surface 103 is conical or truncated. An annular air channel 104 is provided on the periphery of the deflector surface 103, the annular air channel 104 is connected to the air cavity 101, and the annular air channel 104 has an air jet (not shown in the figure) facing upward or obliquely upward, and the air outlet direction of the air jet faces the deflector surface 103.

[0040] When the air supply member is working, the air supply member provides an air source for the air inlet 102, and the air flow enters the annular air passage 104 along the air inlet 102 and the air cavity 101, and finally ejects upward or obliquely upward from the jet port of the annular air passage 104. Due to the wall effect, the air flow ejected from the jet port will adhere to the guide surface 103 of the deflector 1 and flow upward to form an air curtain flowing upward along the guide surface 103, which not only ensures that the air flow will not run disorderly outside the deflector 1, but also the air curtain flowing upward can better and actively guide the oil smoke to further accelerate the upward inhalation into the smoke collection hood of the range hood, thereby preventing the oil smoke from escaping.

[0041] It can be seen that the accelerated smoking device of this embodiment designs the outer wall of the deflector 1 with the air cavity 101 as a deflector surface 103, and adds an annular air duct 104 connecting the air cavity 101 on the periphery of the deflector surface 103. The annular air duct 104 has an air jet facing upward or obliquely upward. The airflow ejected from the air jet will adhere to the deflector surface 103 of the deflector 1 and flow upward to form an air curtain. The structure is simple and ingenious, and the active jet guidance method is adopted to further accelerate and smoothly inhale the oil smoke outside the deflector 1 into the smoke collecting hood, thereby greatly improving the smoking effect under the condition of a large amount of oil smoke in an instant.

[0042] In this embodiment, the width of the annular airway 104 is designed to be about 3 mm, so that the annular airway 104 is narrower, which can not only speed up the airflow speed, but also constrain the airflow to flow upward along the direction of the annular airway 104, and then flow upward along the guide surface 103, thereby ensuring that it will not run around disorderly outside the deflector 1.

[0043] refer to Figure 2-3In this embodiment, the deflector 1 includes a shell 11 having an air cavity 101 and a pressure diffuser ring 12. An air inlet 102 is provided at the top of the shell 11. The outer wall of the shell 11 is designed as a deflector surface 103, that is, the outer wall of the shell 11 is designed to be truncated. A plurality of air outlet slits 112 are evenly distributed at circumferential intervals at the lower end of the deflector surface 103. Each air outlet slit 112 is connected to the air cavity 101 to improve the uniformity of air distribution. The shell 11 has a bottom surface 113, and the air cavity 101 can be formed in the shell 11 without the pressure diffuser ring 12.

[0044] The diffuser ring 12 includes a bottom plate 121 and a side plate 122. The bottom plate 121 is a circular flat plate without a central hole, and the side plate 122 is an annular structure. The side plate 122 is arranged at the periphery of the bottom plate 121. The edge of the bottom plate 121 is connected to the lower edge of the side plate 122 and together define an upwardly open concave cavity 1201. Optionally, the side plate 122 of this embodiment is parallel to the guide surface 103, so that the airflow is better guided to flow upward.

[0045] During installation, the shell 11 is inserted into the concave cavity 1201 and abuts against and connects to the bottom of the concave cavity 1201, that is, the bottom surface 113 of the shell 11 abuts against and connects to the bottom plate 121. The side plate 122 is located at the periphery of the guide surface 103, and an annular airway 104 is formed between the side plate 122 and the guide surface 103, that is, the radial outer side of the side plate 122, the bottom plate 121 and the lower end of the guide surface 103 together enclose an annular airway 104 with a top opening, and the annular airway 104 is connected to each air outlet slit 112, and the top opening of the annular airway 104 constitutes an air jet. Therefore, by designing the deflector 1 to be composed of a shell 11 with an air cavity 101 and a diffuser ring 12 with a concave cavity 1201 opening upward, it is easy to process, assemble and quickly form the annular airway 104.

[0046] In other embodiments, in order to reduce the manufacturing materials and reduce the manufacturing cost, the bottom plate 121 can be designed as an annular flat plate with a central hole. Figure 4 .

[0047] In other embodiments, the deflector 1 may also be designed as follows:

[0048] The first deformation structure, reference Figure 5The deflector 1 includes a shell 11 and a diffuser ring 12. The shell 11 has a cavity (not shown in the figure) that opens downward, that is, the bottom of the cavity is open, and the shell 11 does not have a bottom surface 113. An air inlet 102 connected to the cavity is provided at the top of the shell 11. The outer wall of the shell 11 is designed as a guide surface 103. A plurality of air outlet slits 112 are evenly spaced circumferentially at the lower end of the guide surface 103. The diffuser ring 12 has a concave cavity 1201 that opens upward. During installation, the shell 11 is inserted into the concave cavity 1201 to abut and connect the bottom of the concave cavity 1201. The air cavity 101 is formed by the cavity and the bottom of the concave cavity 1201. An annular air passage 104 is formed between the side wall of the concave cavity 1201 and the guide surface 103. The annular air passage 104 is connected to the air cavity 101 through the air outlet slit 112. Therefore, by omitting the bottom of the shell 11, the air cavity 101 is designed to be formed by the downward-opening cavity of the shell 11 and the bottom of the upward-opening concave cavity 1201 of the diffuser ring 12, which not only facilitates the processing and forming of the shell 11, but also uses less material for the shell 11 and has lower cost.

[0049] Optionally, a plurality of notches are evenly distributed along the circumferential direction at the lower end of the guide surface 103, the length direction of the notches is arranged along the circumferential direction, and the height of the notches is designed to be relatively short. The air outlet slit 112 is formed by the notches and the bottom of the concave cavity 1201, so that the area of ​​the air outlet slit 112 is smaller and closer to the bottom of the annular air channel 104.

[0050] In the second deformation structure, the deflector 1 is a shell 11 with an air cavity 101, an air inlet 102 is provided at the top of the shell 11, and the outer wall of the shell 11 is designed as a deflector surface 103. An annular flange extending outward and upward is integrally formed along the lower end of the deflector surface 103, and the annular flange replaces the above-mentioned diffuser ring 12. An annular airway 104 is formed between the annular flange and the deflector surface 103, and a plurality of air outlet slits 112 are evenly distributed circumferentially at the position of the annular airway 104 at the lower end of the deflector surface 103, and the opposite ends of each air outlet slit 112 are respectively connected to the air cavity 101 and the annular airway 104. Therefore, by integrally forming an annular flange extending outward and upward along the lower end of the guide surface 103, and designing the annular airway 104 to be formed by the annular flange and the lower end of the guide surface 103, the smoke acceleration effect is achieved while eliminating the diffuser ring 12, making the overall structure of the deflector 1 simpler and the cost lower.

[0051] In this embodiment, the air supply member may be an additional air curtain fan 2, or may be a range hood fan 3 provided in the range hood itself.

[0052] When the air supply member is preferably an additional air curtain fan 2, refer to Figure 1-2The accelerated smoking device further comprises an adapter 4 having an air duct 401, and the air supply port 201 of the air curtain fan 2 is connected to the air inlet 102 of the deflector 1 through the air duct 401. Thus, through the adapter 4 having the air duct 401, the air supply port 201 of the air curtain fan 2 is stably and reliably connected to the air inlet 102 of the deflector 1, thereby providing a reliable wind source for the deflector 1.

[0053] Specifically, the adapter 4 is arranged above the deflector 1, and one end thereof is provided with an installation cavity 402 suitable for installing the air curtain fan 2, the top of the installation cavity 402 has an opening, and the installation cavity 402 is connected to the air duct 401. The other end of the adapter 4 is provided with an installation port 403 extending toward the air inlet 102. The air curtain fan 2 is installed in the installation cavity 402, and its air inlet end is opened toward the top of the installation cavity 402, so that the air curtain fan 2 can exhaust air, and the air supply port 201 of the air curtain fan 2 is connected to the entrance of the air duct 401. The outlet of the air duct 401 is connected to the air inlet 102 through the installation port 403. Therefore, by providing the installation cavity 402 on the adapter 4, space is provided for the installation of the air curtain fan 2. In addition, by adding the installation port 403 extending toward the air inlet 102 at the other end of the adapter 4, the disassembly and assembly of the adapter 4 and the air inlet 102 is simpler and more convenient, and the connection is more firm and reliable.

[0054] When the air supply member is preferably a range hood fan 3, refer to Figure 6 The range hood fan 3 includes a volute 31, a motor 32 and an impeller 33. The volute 31 has an air inlet (not shown in the figure) and an air outlet 302. The impeller 33 is rotatably arranged in the volute 31 and connected to the output end of the motor 32. An air outlet hole 301 arranged near the air outlet 302 is provided at the air outlet end of the volute 31, and the air outlet hole 301 is selectively connected to the air inlet 102 through the air duct 401. Therefore, the range hood fan 3 is used to provide a wind source for the deflector 1, which is conducive to improving the utilization rate of the range hood fan 3. At the same time, there is no need to additionally provide an air curtain fan 2, so that the overall cost of the range hood is lower.

[0055] In addition, a switch valve is provided between the air duct 401 and the air outlet 301, or a switch valve is provided in the air duct 401. In this way, by controlling the switch valve, it is possible to control whether the range hood fan 3 provides a wind source for the deflector 1.

[0056] Example 2

[0057] refer to Figure 7-9The present embodiment provides a range hood, comprising a smoke hood 5, a wind cabinet assembly 6 and the accelerated smoking device as described in Example 1. The bottom of the smoke hood 5 is provided with at least one smoke inlet (not shown in the figure). In the present embodiment, the bottom of the smoke hood 5 is provided with two smoke inlets arranged side by side on the left and right to achieve double-chamber double suction. A folded edge 501 extending toward the inside of the smoke hood 5 is provided on the circumference of the edge of each smoke inlet. The wind cabinet assembly 6 comprises a box body 61 and a volute fan. The box body 61 is arranged on the top of the smoke hood 5 and connected to the inside of the smoke hood 5. The volute fan is a range hood fan without an air outlet 301, which is arranged in the box body 61.

[0058] Two accelerated smoking devices arranged one-to-one corresponding to the smoke inlet are connected in the smoke hood 5. Each deflector 1 extends into the corresponding folded edge 501, and an annular smoking passage 502 for oil smoke to pass through is formed between the folded edge 501 and the deflector 1. The annular smoking passage 502 connects the jet port, the inside of the smoke hood 5 and the outside of the smoke hood 5 respectively. The adapter 4 of each accelerated smoking device is fastened to the top of the smoke hood 5, and an air inlet 503 is provided at the top of the smoke hood 5 corresponding to the air inlet end of the air curtain fan 2, so that the air outside the smoke fan can be sucked into the air curtain fan 2 through the air inlet 503, thereby providing a wind source for the deflector 1.

[0059] When smoking is required, start the volute fan and the air curtain fan 2 near the smoking position. Under the suction force generated by the volute fan, the oil smoke is sucked into the smoke hood 5 through the annular smoking channel 502. Since there is no oil net structure at the smoke inlet, the oil smoke will not collide with the oil net to produce a small local vortex, which will not affect the smooth inhalation of the oil smoke, ensuring smoother smoking and preventing instantaneous large amounts of oil smoke from easily overflowing. During the smoking process, the airflow ejected by the deflector 1 flows upward along the guide surface 103 of the deflector 1 to form an air curtain, which can drive the oil smoke on its periphery to further accelerate the inhalation into the smoke hood 5, and realize the active guidance of the jet to accelerate the flow of oil smoke into the smoke hood 5, further improving the smoking effect under the condition of instantaneous large amounts of smoke, and preventing the escape of oil smoke.

[0060] In this embodiment, the folded edge 501 is in a truncated cone shape, so that the folded edge 501 can better guide the oil smoke into the interior of the smoke collecting hood 5 .

[0061] refer to Figure 8-9, further, it also includes two fixing members 7, both of which are arranged in the smoke collecting hood 5 and correspond to the two smoke inlets. A fixing member 7 is arranged on the top of each deflector 1, and the fixing member 7 is sleeved on the outer surface of the air inlet 102 of the corresponding deflector 1, and the fixing member 7 is fastened to the top of the deflector 1, and the edge of the fixing member 7 is connected to the upper end of the corresponding folded edge 501. In this way, by connecting the fixing member 7 to the folded edge 501 and the deflector 1 respectively, the installation of the deflector 1 is more stable and reliable.

[0062] In addition, a vent 701 for air to pass through is provided at the position of the fixing member 7 corresponding to the annular smoking passage 502. The vent 701 may be a circular oil filter hole or a strip oil filter hole, or may be a slot for air to pass through. In this embodiment, the vent 701 is a circular oil filter hole as an example, and the inside of the smoke hood 5 is connected to the annular smoking passage 502 through the vent 701. In this way, when the oil smoke is sucked into the annular smoking passage 502, it cannot escape to the outside due to the wall of the annular smoking passage 502, and can only flow upward along the annular smoking passage 502, and is initially filtered when flowing through the circular oil filter hole, thereby improving the oil smoke separation effect, and then is sucked into the inside of the smoke hood 5.

[0063] It can be seen that by adding a fixing part 7 with a ventilation portion 701 inside the smoke hood 5, it can be used to strengthen the installation of the deflector 1 to be more stable and reliable, and secondly, it can achieve preliminary filtration of the oil smoke and improve the oil smoke separation effect. Thirdly, when the oil smoke collides with the fixing part 7, even if a small local vortex is generated, since the fixing part 7 is located inside the smoke hood 5, under the limitation of the wall of the annular smoking channel 502, the phenomenon of instantaneous large amount of oil smoke easily overflowing will not occur.

[0064] See also Figure 7-8 In this embodiment, the smoke inlet surface 504 of the smoke hood 5 is arranged at an angle in the vertical direction so that the smoke inlet surface 504 can play a role in guiding smoke. The top surface of the fixing member 7 is designed to be parallel to the smoke inlet surface 504 so that the top surface of the fixing member 7 is also arranged at an angle. In this way, when the oil smoke flows through the vent 701 on the top surface of the fixing member 7, it condenses and produces oil stains. Under the action of gravity, the oil stains flow downward along the top surface of the fixing member 7, and then flow downward along the folded edge 501 to the bottom inner side of the smoke hood 5, and finally gather from the oil flow hole at the bottom of the smoke hood 5 to the oil cup of the range hood. It can be seen that the top surface of the fixing member 7 and the back smoke surface of the folded edge 501 can both play a role in guiding oil stains, preventing the oil stains on the top surface of the fixing member 7 from dripping through the smoke inlet and directly dripping onto the stove.

[0065] Example 3

[0066] The difference between this embodiment and Example 2 is that the volute fan is replaced by a range hood fan 3 having an air outlet 301. Figure 6Correspondingly, the two air curtain fans 2 and the mounting cavity 402 on the adapter 4 are omitted. An air outlet 301 is respectively provided on the left and right side walls of the air outlet end of the range hood fan 3. The left air outlet 301 is connected to the air inlet 102 of the left deflector 1 through the air duct 401 of the first adapter 4, and the right air outlet 301 is connected to the air inlet 102 of the right deflector 1 through the air duct 401 of the second adapter 4.

[0067] A switch valve is provided between each air duct 401 and the corresponding air outlet 301 , or a switch valve is provided in each air duct 401 , so as to control whether the range hood fan 3 provides a wind source for the two deflectors 1 by switching the switch valve.

[0068] It can be seen that the present embodiment uses the range hood fan 3 to provide a wind source for the deflector 1, which not only improves the utilization rate of the range hood fan 3 but also eliminates the need to add an additional air curtain fan 2, thereby lowering the overall cost of the range hood.

[0069] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A smoking acceleration device, characterized in that: include: A deflector (1) having an air cavity (101) inside, an air inlet (102) connected to the air cavity (101) being provided on the deflector (1), an outer wall of the deflector (1) being a deflector surface (103) arranged from bottom to top and tilted inward, an annular air passage (104) connected to the air cavity (101) being provided on the periphery of the deflector surface (103), the annular air passage (104) having an air jet facing upward or obliquely upward, and an air outlet direction of the air jet facing the deflector surface (103); An air supply member, the air supply member being used to provide an air source for the air inlet (102); Wherein, the deflector (1) comprises: A shell (11) having the air cavity (101), the air inlet (102) being arranged at the top of the shell (11), the outer wall of the shell (11) being the guide surface (103), and a plurality of air outlet slits (112) communicating with the air cavity (101) being arranged at intervals in the circumferential direction at the lower end of the guide surface (103); A pressure diffuser ring (12), the pressure diffuser ring (12) comprising a bottom plate (121) and a side plate (122) connected to each other, the bottom plate (121) abutting against and connected to the bottom of the shell (11), the side plate (122) being arranged at the periphery of the guide surface (103), the annular air channel (104) being formed between the side plate (122) and the guide surface (103), the annular air channel (104) being connected to each of the air outlet slits (112), and the width of the annular air channel (104) being designed to be 3 mm.

2. The accelerated smoking device according to claim 1, characterized in that: The bottom plate (121) is a circular flat plate, or the bottom plate (121) is an annular flat plate with a central hole; the side plate (122) is parallel to the guide surface (103).

3. A smoking acceleration device, characterized in that: include: A deflector (1) having an air cavity (101) inside, an air inlet (102) connected to the air cavity (101) being provided on the deflector (1), an outer wall of the deflector (1) being a deflector surface (103) arranged from bottom to top and tilted inward, an annular air passage (104) connected to the air cavity (101) being provided on the periphery of the deflector surface (103), the annular air passage (104) having an air jet facing upward or obliquely upward, and an air outlet direction of the air jet facing the deflector surface (103); An air supply member, the air supply member being used to provide an air source for the air inlet (102); Wherein, the deflector (1) comprises: A pressure diffuser ring (12), the pressure diffuser ring (12) having a concave cavity (1201) opening upward; A shell (11), the shell (11) having a cavity opening downward, an air inlet (102) communicating with the cavity being provided at the top of the shell (11), an outer wall of the shell (11) being the guide surface (103), a plurality of air outlet slits (112) being provided at intervals in the circumferential direction at the lower end of the guide surface (103), The shell (11) is inserted into the concave cavity (1201) and abuts against the bottom of the concave cavity (1201); the air cavity (101) is formed by the cavity and the bottom of the concave cavity (1201); the annular air channel (104) is formed between the side wall of the concave cavity (1201) and the guide surface (103); the annular air channel (104) is connected to the air cavity (101) through the air outlet slit (112); and the width of the annular air channel (104) is designed to be 3 mm.

4. The accelerated smoking device according to claim 3, characterized in that: The side wall of the cavity is parallel to the flow guide surface (103).

5. A smoking acceleration device, characterized in that: include: A deflector (1) having an air cavity (101) inside, an air inlet (102) connected to the air cavity (101) being provided on the deflector (1), an outer wall of the deflector (1) being a deflector surface (103) arranged from bottom to top and tilted inward, an annular air passage (104) connected to the air cavity (101) being provided on the periphery of the deflector surface (103), the annular air passage (104) having an air jet facing upward or obliquely upward, and an air outlet direction of the air jet facing the deflector surface (103); An air supply member, the air supply member being used to provide an air source for the air inlet (102); The deflector (1) is a shell (11) having the air cavity (101), the air inlet (102) is provided at the top of the shell (11), the outer wall of the shell (11) is the deflector surface (103), an annular flange extending outward and upward is integrally formed at the lower end of the deflector surface (103), the annular air channel (104) is formed between the annular flange and the deflector surface (103), a plurality of air outlet slits (112) are circumferentially spaced at the lower end of the deflector surface (103), the opposite ends of each air outlet slit (112) are respectively connected to the air cavity (101) and the annular air channel (104), and the width of the annular air channel (104) is designed to be 3 mm.

6. An accelerated smoking device according to any one of claims 1 to 5, characterized in that: It also includes an adapter (4) having an air duct (401), the air supply component is an air curtain fan (2), and the air supply port (201) of the air curtain fan (2) is connected to the air inlet (102) through the air duct (401).

7. The accelerated smoking device according to claim 6, characterized in that: The adapter (4) is arranged above the deflector (1), and one end of the adapter is provided with a mounting cavity (402) suitable for mounting the air curtain fan (2), and the other end is provided with a mounting opening (403) extending toward the air inlet (102). The air curtain fan (2) is installed in the mounting cavity (402), the inlet of the air duct (401) is connected to the air supply port (201), and the outlet of the air duct (401) is connected to the air inlet (102) through the mounting opening (403).

8. An accelerated smoking device according to any one of claims 1 to 5, characterized in that: It also includes an adapter (4) having an air duct (401), the air supply component is a range hood fan (3), an air outlet hole (301) is provided at the air outlet end of the range hood fan (3), and the air outlet hole (301) is selectively connected to the air inlet (102) through the air duct (401).

9. The accelerated smoking device according to claim 8, characterized in that: A switch valve is provided between the air duct (401) and the air outlet (301), or a switch valve is provided in the air duct (401).

10. A range hood, characterized in that: include: A smoke collecting hood (5), wherein at least one smoke inlet is provided at the bottom of the smoke collecting hood (5), and a folded edge (501) extending toward the inside of the smoke collecting hood (5) is provided on the circumference of the edge of the smoke inlet; A wind cabinet component (6), the wind cabinet component (6) comprising a box body (61) and a volute fan, the box body (61) being arranged on the top of the smoke collecting hood (5) and communicating with the interior of the smoke collecting hood (5), and the volute fan being arranged in the box body (61); The accelerated smoking device according to any one of claims 1 to 9, wherein the number of accelerated smoking devices corresponding to the number of the smoke inlets is connected in the smoke collecting hood (5), each of the deflectors (1) extends into the corresponding folded edge (501), and an annular smoking channel (502) for oil smoke to pass through is formed between the folded edge (501) and the deflector (1), and the annular smoking channel (502) is respectively connected to the air jet port, the interior of the smoke collecting hood (5) and the exterior of the smoke collecting hood (5).

11. The range hood according to claim 10, characterized in that: It also includes a fixing member (7) arranged in the smoke collecting hood (5), and each of the deflectors (1) is provided with a fixing member (7) at the top, and the fixing members (7) are respectively connected to the top of the corresponding deflector (1) and the upper end of the corresponding folded edge (501), and the fixing member (7) is provided with a ventilation portion (701) for air flow to pass through at the position of the fixing member (7) corresponding to the annular smoking passage (502), and the interior of the smoke collecting hood (5) is connected to the annular smoking passage (502) through the ventilation portion (701).

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