CN107990392B - Fume exhauster - Google Patents
Fume exhauster Download PDFInfo
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- CN107990392B CN107990392B CN201810060914.5A CN201810060914A CN107990392B CN 107990392 B CN107990392 B CN 107990392B CN 201810060914 A CN201810060914 A CN 201810060914A CN 107990392 B CN107990392 B CN 107990392B
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- air inlet
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- inlet cavity
- air
- range hood
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- 239000003517 fume Substances 0.000 title description 3
- 238000009833 condensation Methods 0.000 claims description 34
- 230000005494 condensation Effects 0.000 claims description 34
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000013519 translation Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 61
- 230000000694 effects Effects 0.000 abstract description 30
- 230000008901 benefit Effects 0.000 abstract description 16
- 230000000391 smoking effect Effects 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 18
- 239000003546 flue gas Substances 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 7
- 230000030279 gene silencing Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The application relates to the technical field of kitchen appliances, in particular to a range hood. The application provides a range hood, which comprises a box body and an air inlet front end assembly, wherein the air inlet front end assembly comprises a guide plate arranged on the box body; the left side and the right side of the guide plate are respectively provided with a first air inlet cavity and a second air inlet cavity which are convexly arranged towards the direction of the box body, and the first air inlet cavity and the second air inlet cavity are separated by a cross beam; the first air inlet cavity and the second air inlet cavity are respectively provided with at least one air inlet. The range hood provided by the application has the advantages of extremely large smoke gathering and smoking for double stoves by adopting double-cavity negative pressure distribution, and particularly, by arranging the left air inlet cavity and the right air inlet cavity, the inflowing air flow can be uniformly distributed towards the two sides of the guide plate, so that the flow distribution is accelerated, the smoke gathering area of the left side and the right side of the range hood is increased, and the effective improvement of the smoke absorbing effect is facilitated. In addition, the range hood provided by the application has the advantages of simple structure, reasonable design and good smoke gathering and smoking effects.
Description
Technical Field
The application relates to the technical field of kitchen appliances, in particular to a range hood.
Background
At present, a double-stove is generally used in a user family, and two stoves are arranged at the left and right sides. The pan for frying dishes is positioned at two sides of the range hood, and the general range hood is provided with only one air inlet, the air inlet is arranged in the middle, and the air inlet in the middle is generally difficult to suck and exhaust the oil smoke at two sides.
Aiming at the problems, the current technical proposal generally adopts to increase the left-right and front-back sizes of the smoke collecting cavity. The cigarette collecting cavity with increased size can form a cigarette control area with a certain size, and the larger the general size is, the larger the cigarette control area is, and if a certain brand of serial fans are under the problem that bottleneck exists in air volume lifting, the left and right sizes of the cigarette collecting cavity are 1000mm. The left and right dimensions of the smoke collecting cavity of the range hood existing in the market are generally 600-1000 mm, and the front and back dimensions are 350-550 mm. However, simply increasing the size of the smoking chamber has limited smoke-absorbing effect. The left and right dimensions of the smoke collecting cavity are limited by the front and back dimensions of the cooking bench, the dimensions of the cabinet, the dimensions of the kitchen space, the convenience of operation of users and other factors, and the left and right dimensions are too large to be suitable for most families in China, and the left and right dimensions are generally recommended to be 895mm. The increase of the smoke gathering cavity has limited and more limited effect on the smoke absorbing effect.
In addition, the current technical scheme can also adopt a guide plate structure with a stretching cavity on a box body of the range hood, and particularly as shown in fig. 1 to 4, the whole range hood 100 mainly comprises a check valve 101, a box body, a guide plate 102, a condensing plate 103, an air inlet net 105, an oil cup 104 and other components, a fan assembly is arranged in the box body, and the fan assembly mainly comprises a volute 107, a motor 108, an impeller 109 and other components; the middle part in tensile chamber is equipped with an air intake, coincides with the air intake of spiral case 107, for reinforcing smoking effect, can add the condensate plate 103 at the guide plate 102 front end, the existence of condensate plate 103 makes the air current admit air along the periphery of condensate plate 103 for the flue gas that both sides pan produced enters into the cigarette machine inside through the air inlet channel of the left and right sides of condensate plate 103, and specific flue gas flow direction 106 can refer to fig. 3, and sets up spiral case 107 slope, makes the air intake of spiral case 107 nearer with the distance of rising flue gas, in order to further do benefit to reinforcing smoking effect. However, the baffle with the structure is easy to cause loss of air quantity and increase of noise, and the addition of the condensing plate makes flow dispersed around the condensing plate, which is not beneficial to complete pumping and exhausting of oil smoke during quick-frying. In particular, the partial area around the condensing plate can generate the smoke leakage condition during the quick-frying, the flow and the flow speed are needed to be supplemented, the noise is increased due to the increase of the flow and the flow speed, and the hearing experience of a user is very poor.
Disclosure of Invention
First, the technical problem to be solved
The purpose of the application is that: the range hood is simple in structure, reasonable in design, strong in structural strength and stability, good in smoke gathering, accelerating and splitting and smoking effects, and aims to solve the problems that an existing range hood is low in air inlet efficiency, easy to cause air quantity loss and poor in smoking effect due to the fact that only one stretching cavity is arranged on the guide plate of the range hood.
(II) technical scheme
In order to solve the technical problems, the application provides a range hood, which comprises a box body and an air inlet front end assembly, wherein the air inlet front end assembly comprises a guide plate, and the guide plate is arranged on the box body; the left side of guide plate is equipped with towards the protruding first air inlet die cavity of establishing of box direction, the right side of guide plate is equipped with towards the protruding second air inlet die cavity of establishing of box direction, first air inlet die cavity and second air inlet die cavity all are equipped with at least one air intake.
Through being equipped with two air inlet die cavities about for the gas flow ability evenly distributed who flows in tends to the guide plate both sides, has increased the range hood left and right sides and has drawn together the cigarette area, and then does benefit to the effective promotion of range hood effect.
Preferably, the first air inlet cavity and the second air inlet cavity are separated by a cross beam. Through being equipped with the crossbeam with two air inlet die cavities separation in the centre of guide plate, also can very big improvement guide plate's structural strength and stability, ensure range hood's operational reliability
Preferably, the longitudinal section shapes of the first air inlet cavity and the second air inlet cavity are trapezoidal, and the air inlets are arranged on one or more of the upper bottom surface of the first air inlet cavity and the four waist surfaces, and one or more of the upper bottom surface of the second air inlet cavity and the four waist surfaces.
The structure of the trapezoid cavity is adopted, the structure is stable, the volume of the formed stretching cavity is large, the smoke gathering area is improved, and the smoke absorbing effect of the whole machine is improved.
Preferably, the longitudinal section shapes of the first air inlet cavity and the second air inlet cavity are triangular, the air inlet comprises air inlets arranged on one or more of four cavity surfaces of the first air inlet cavity and one or more of four cavity surfaces of the second air inlet cavity, the structure is simple, the processing technology is simple and convenient, the accelerating flow dividing surface is formed, and the ascending smoke can be effectively divided and rapidly guided, so that the smoke absorbing effect of the whole machine is improved.
Preferably, the first air inlet cavity and the second air inlet cavity together form an air inlet structure with an M-like longitudinal section, the number of the air inlets is two, the two air inlets are respectively arranged on the cavity surfaces of one sides of the first air inlet cavity and the second air inlet cavity, which are respectively far away from the cross beam, so that the cavity surfaces of one sides of the first air inlet cavity and the second air inlet cavity, which are respectively adjacent to the cross beam, form two accelerating flow dividing surfaces, so that flue gas is divided to the left side and the right side through the two accelerating flow dividing surfaces, and then enters the interior of the smoke machine from the air inlets, and further, the effect that the ascending flue gas can be effectively divided and rapidly guided is realized.
The first air inlet cavity and the second air inlet cavity jointly form an air inlet structure with a W-like longitudinal section, the number of the air inlets is two, the two air inlets are respectively arranged on the cavity surfaces of one sides of the first air inlet cavity and one side of the second air inlet cavity, which are respectively close to the cross beam, so that the cavity surfaces of one sides of the first air inlet cavity and one side of the second air inlet cavity, which are respectively far away from the cross beam, form two accelerating flow dividing surfaces, so that flue gas is divided to the left side and the right side through the two accelerating flow dividing surfaces, and then enters the interior of the smoke machine from the air inlets, and further the effect that the smoke can effectively split and rapidly flow guide the rising flue gas is realized.
Preferably, the cavity surface provided with the air inlet comprises a panel and the air inlet arranged on the panel, or the cavity surface provided with the air inlet comprises a plate frame with an opening and a filter screen covered at the opening, the filter screen comprises a plurality of air inlets, the structure is simple, the design is reasonable, the air inlet effect is good, and the structural form of the cavity surface can be reasonably selected according to practical implementation conditions.
Further preferably, the air inlet front end assembly further comprises a condensation plate assembly, and the condensation plate assembly and the guide plate move relatively through a connecting piece so as to open or cover the air inlet; wherein the movement comprises a rotation and/or a translation. Therefore, when the range hood is not in use, the condensing plate component can be covered on the air inlet, so that on one hand, dust is prevented from entering the range hood to cause noise and other phenomena, and on the other hand, the aesthetic property is effectively improved; when the range hood is used, the condensing plate assembly can open the air inlet in a rotary and/or translational mode, and the range hood can be normally used.
Preferably, the beam is provided with a sound absorption module near one side of the box body, so that the original cavity structure can be effectively filled, backflow and collision loss are avoided, and noise radiated by the air inlet of the volute can be further weakened and reduced, so that the noise value of the whole machine is optimized.
Preferably, the left side of the sound absorbing module is provided with a first diversion inclined plane arranged along the air inlet direction of the first air inlet cavity, and/or the right side of the sound absorbing module is provided with a second diversion inclined plane arranged along the air inlet direction of the second air inlet cavity, so that the flow loss of smoke entering the smoke machine is reduced, and the smoke absorbing effect of the whole machine is enhanced.
(III) beneficial effects
The technical scheme of the application has the following advantages:
the application provides a range hood, which comprises a box body and an air inlet front end assembly, wherein the air inlet front end assembly comprises a guide plate, and the guide plate is arranged on the box body; the left side of guide plate is equipped with the first air inlet die cavity that the orientation of orientation was protruding establishes, and the right side of guide plate is equipped with the second air inlet die cavity that the orientation was protruding establishes towards the box orientation, and first air inlet die cavity and second air inlet die cavity all are equipped with at least one air intake. The range hood provided by the application has the advantages of extremely large smoke gathering and smoking for double stoves by adopting double-cavity negative pressure distribution, and particularly, by arranging the left air inlet cavity and the right air inlet cavity, the inflowing air flow can be uniformly distributed towards the two sides of the guide plate, so that the flow distribution is accelerated, the smoke gathering area of the left side and the right side of the range hood is increased, and the effective improvement of the smoke absorbing effect is facilitated. In addition, the range hood provided by the application has the advantages of simple structure, reasonable design, good smoke gathering and smoking effects and strong practicability, and is beneficial to standardized production and popularization.
In addition to the technical problems, features of the constituent technical solutions and advantages brought by the technical features of the technical solutions described above, other technical features of the present application and advantages brought by the technical features of the technical solutions, further description will be made with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of the whole structure of a prior art range hood;
fig. 2 is an exploded view of a structure of a prior art range hood;
fig. 3 is a front view of the range hood of fig. 1;
FIG. 4 is a schematic cross-sectional view of H-H of FIG. 3;
fig. 5 is a schematic view of a range hood according to a first embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of E-E of FIG. 5;
FIG. 7 is a schematic cross-sectional view of J-J of FIG. 6;
fig. 8 is a schematic view of a baffle of a range hood according to a first embodiment of the present application;
FIG. 9 is a front view of the baffle of FIG. 8;
FIG. 10 is a schematic cross-sectional view of A-A of FIG. 9;
fig. 11 is a schematic structural view of a baffle of a second embodiment of a range hood according to the present application;
FIG. 12 is a schematic cross-sectional view of L-L of FIG. 11.
In the figure: 100: a range hood; 101: a check valve; 102: a deflector; 103: a condensing plate; 104: an oil cup; 105: an air inlet net; 106: the flow direction of the flue gas; 107: a volute; 108: a motor; 109: an impeller; 200: a range hood; 201: a check valve; 202: an oil cup; 211: a frame; 212: a housing; 221: a deflector; 2211: a first air inlet cavity; 2212: a second air inlet cavity; 2213: a cross beam; 2214: a first air inlet; 2215: a second air inlet; 2216: a first air inlet; 2217: a second air inlet; 2218: a first accelerating diverting surface; 2219: a second accelerating diverting surface; 222: an upper condensing plate; 223: a lower condensing plate; 2231: an air inlet hole; 231: a volute; 232: an impeller; 235: an air inlet ring; 2121: a left side plate; 2122: a right side plate; 241: an air inlet net; 260: the flow direction of the flue gas; 271: and a circumferential rectifying plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the following embodiments, when the user faces the range hood, the left hand side is denoted as left and the right hand side is denoted as right, and the side close to the user is denoted as front and the side far from the user is denoted as rear; the side closer to the ground is denoted as lower, and the side farther from the ground is denoted as upper.
Example 1
As shown in fig. 5 to 10, an embodiment of the present application provides a range hood 200, which includes a box and an air inlet front end assembly, wherein the air inlet front end assembly includes a deflector 221, and the deflector 221 is mounted on the box; the left side of the guide plate 221 is provided with a first air inlet cavity 2211 protruding towards the box direction, the right side of the guide plate 221 is provided with a second air inlet cavity 2212 protruding towards the box direction, and the first air inlet cavity 2211 and the second air inlet cavity 2212 are both provided with at least one air inlet.
Preferably, in the present embodiment, the housing includes a housing 212 and a frame 211 connected to the housing 212 and located above the housing 212, and the volute 231 is disposed in an installation space formed by the housing 212 and the frame 211.
According to the range hood 200 provided by the application, the first air inlet cavity 2211 and the second air inlet cavity 2212 are respectively arranged on the left side and the right side of the guide plate 221, so that smoke is more easily sucked and exhausted by the range hood 200, and the air inlet is reasonably utilized to enhance the oil smoke absorbing effect; and the adoption of the double-cavity negative pressure distribution has great smoke gathering and smoking advantages for double stoves. Specifically, through being equipped with two air inlet die cavities about, make the gas flow that flows in can evenly distributed tend to guide plate 221 both sides, increased the range hood 200 left and right sides draw in the cigarette area, and then do benefit to the effective promotion of range hood effect. Wherein the path of the flue gas flow direction 260 is specifically referred to in fig. 7.
In addition, the range hood 200 provided by the application has the advantages of simple structure, reasonable design, good smoke gathering and smoking effects and strong practicability, and is beneficial to standardized production and popularization.
Further preferably, the first air intake cavity 2211 is separated from the second air intake cavity 2212 by a cross beam 2213.
Specifically, in this embodiment, by providing the cross beam 2213 separating the two air intake cavities in the middle of the baffle 221, the structural strength and stability of the baffle 221 can be greatly improved, and the reliability of the range hood 200 can be ensured.
Preferably, the longitudinal section shapes of the first air intake cavity 2211 and the second air intake cavity 2212 are trapezoidal, and air inlets are formed on one or more of the upper bottom surface and the four waist surfaces of the first air intake cavity 2211 and one or more of the upper bottom surface and the four waist surfaces of the second air intake cavity 2212.
In this embodiment, the first air intake cavity 2211 and the second air intake cavity 2212 on the guide plate 221 are preferably in a trapezoid cavity structure, the first air intake cavity 2211 is provided with a first air intake 2214, and the second air intake cavity 2212 is provided with a second air intake 2215.
Specifically, each trapezoid cavity includes five cavity surfaces, such as an upper bottom surface and four waist surfaces, the number of air inlets of the first air inlet cavity 2211 may include a plurality of air inlets, and the plurality of air inlets may be disposed on one or more of the upper bottom surface and the four waist surfaces of the first air inlet cavity 2211; correspondingly, the number of the air inlets of the second air inlet cavity 2212 may also include a plurality of air inlets, and the plurality of air inlets may be disposed on one or more of the upper bottom surface and the four waist surfaces of the second air inlet cavity 2212. The number and the arrangement positions of the air inlets are not limited, and only the air inlet quantity of the air inlets is required to meet the requirement of sucking and discharging clean oil smoke. And the structure of the trapezoid cavity is adopted, the structure is stable, the volume of the formed stretching cavity is large, the smoke gathering area is improved, and the smoke absorbing effect of the whole machine is improved.
Preferably, an air inlet net 241 is arranged at each air inlet.
In this embodiment, the deflector 221 further includes an air inlet net 241, and the air inlet net 241 covers the first air inlet 2214 on the first air inlet cavity 2211 and the second air inlet 2215 on the second air inlet cavity 2212, and the air inlet net 241 mainly plays a role in guiding the flue gas entering the range hood 200 to ensure the air inlet effect. Preferably, the air inlet net 241 may be provided in a shape of a guide grid with an inclined design, so as to effectively enlarge the smoke collecting area and further ensure the effect of fume extraction.
Further preferably, the air intake front end assembly provided by the application further comprises a condensation plate assembly, wherein the condensation plate assembly moves relative to the guide plate 221 through a connecting piece so as to open or cover air inlets arranged on the first air intake cavity 2211 and the second air intake cavity 2212; wherein the movement comprises a rotation and/or a translation. The translation includes horizontal translation and/or vertical translation relative to the air inlet, and the specific translation mode is not limited and only needs to meet the condition of opening or closing the air inlet.
The effect of the condensation plate assembly is that the oil smoke mixture is cooled, namely the temperature is reduced, so that when the oil smoke passes through the air inlet net, the oil condensate falls into the oil cup 202 arranged at the lower bottom end of the guide plate 221 fixedly connected with the box body, the oil smoke separation rate is improved, and the protection of the environment air of a kitchen is facilitated, and the inside of the machine body of the range hood 200 and the smoke channel are also protected.
In this embodiment, the rotation of the condensation plate assembly relative to the baffle 221 is described as an example: specifically, the condensation plate assembly includes an upper condensation plate 222 and a lower condensation plate 223, where the upper condensation plate 222 is rotatably connected with the upper end of the guide plate 221 through a connecting piece to open or cover an air inlet on the guide plate 221, and the opening of the air inlet can be correspondingly adjusted according to actual requirements; the lower condensing plate 223 covers the lower end of the guide plate 221, the lower end of the guide plate 221 is provided with an opening, and the lower condensing plate 223 is provided with an air inlet 2231 communicated with the opening on the guide plate 221.
When the range hood 200 is not in use, the upper condensation plate 222 can rotate to cover the air inlets of the first air inlet cavity 2211 and the second air inlet cavity 2212 of the guide plate 221, so that dust is prevented from entering the range hood 200 to cause noise and other phenomena, and the aesthetic property is effectively improved; when the range hood 200 is in use, the upper condensation plate 222 can be rotated to open the air inlets of the first air inlet cavity 2211 and the second air inlet cavity 2212 of the deflector 221, so that the range hood 200 can be used normally.
Preferably, one of the upper condensation plate 222 and the baffle 221 is provided with a hinge shaft, and the other is provided with a hook rotatably connected to the hinge shaft so that the upper condensation plate 222 can rotate relative to the baffle 221.
Two schemes for implementing rotatable connection may be included: the first upper condensation plate 222 is provided with a hinge shaft, the guide plate 221 is provided with a hook, and the upper condensation plate 222 is rotatably connected with the hook on the guide plate 221 through the hinge shaft so as to realize that the upper condensation plate 222 can rotate relative to the guide plate 221 to open or cover an air inlet on the guide plate 221; and the second upper condensation plate 222 is provided with a hook, the guide plate 221 is provided with a hinge shaft, and the upper condensation plate 222 is rotatably connected with the hinge shaft on the guide plate 221 through the hook so as to realize that the upper condensation plate 222 can rotate relative to the guide plate 221 to open or cover an air inlet on the guide plate 221.
Specifically, the upper condensation plate 222 and the guide plate 221 are rotatably connected with the hook through the hinge shaft to realize the rotation of the upper condensation plate 222 and the guide plate 221 relative to the guide plate 221, so that the structure is simple, the processing technology is simple and convenient, and the connection effect is good. In addition, the rotatable connection between the upper condensation plate 222 and the deflector 221 may adopt a connection mode between the rotation shaft and the rotation shaft seat, in addition to the connection mode between the rotation shaft and the hook, and in particular, a suitable structure form may be selected according to practical implementation conditions.
Still preferably, the range hood 200 further includes a driving rod disposed on the cross beam 2213, the driving rod is connected to the condensation plate assembly, and the driving rod drives the condensation plate assembly to move relative to the guide plate 221 through a connecting piece.
In this embodiment, the connecting piece includes a hook disposed on the upper condensation plate 222 and a rotating shaft disposed on the baffle 221, and the opening or closing of the upper condensation plate 222 relative to the baffle 221 is implemented by a driving rod, specifically:
if the range hood 200 is to be started, the controller of the range hood 200 controls the driving rod to stretch, so that the upper condensation plate 222 can rotate relative to the rotating shaft of the guide plate 221 through the hook, and the air inlets of the first air inlet cavity 2211 and the second air inlet cavity 2212 are opened; correspondingly, when the range hood 200 is closed, the controller of the range hood 200 controls the driving rod to shrink, so that the upper condensation plate 222 can rotate again relative to the rotating shaft on the guide plate 221 through the hook, so as to close the air inlets of the first air inlet cavity 2211 and the second air inlet cavity 2212.
In addition, the cross beam 2213 is disposed in the middle of the baffle 221 to serve as a nose-like structure, so that the driving rod is disposed on the cross beam 2213, which is beneficial to improving the installation stability of the upper condensation plate 222 and the overall structural strength of the range hood 200, and ensuring smooth operation of the whole range hood.
Preferably, the side of the cross beam 2213 near the box body is provided with a sound absorption module.
In particular, for the structural form of the single fan with the double-cavity negative pressure distribution, the single fan is generally located at the middle position of the range hood 200, so that the beam 2213 can prevent the radiation noise of the air inlet of the volute 231 from directly transmitting out of the range hood to a certain extent. In order to further reduce the noise of the smoke machine, a sound absorbing module is arranged on the inner side of the cross beam 2213, namely, on the side close to the box body, so that the original cavity structure can be effectively filled, backflow and collision loss are avoided, and the noise radiated by the air inlet of the volute 231 can be further weakened and reduced, so that the noise value of the whole smoke machine is optimized.
Preferably, the left side of the sound-absorbing module has a first guiding slope along the air intake direction of the first air intake cavity 2211, and/or the right side of the sound-absorbing module has a second guiding slope along the air intake direction of the second air intake cavity 2212.
Among these, three schemes may be included: the left side of the sound absorption module is provided with a first diversion inclined plane; the right side of the sound absorption module is provided with a second diversion inclined plane; third, the left side of the sound-absorbing module is provided with a first diversion inclined plane, and the right side of the sound-absorbing module is provided with a second diversion inclined plane. The reasonable structure type of the sound absorption module can be selected according to practical implementation conditions.
The side edge of the sound absorption module is provided with the flow guiding inclined plane so as to reduce the flow loss of the smoke entering the smoke machine and facilitate the enhancement of the smoke absorption effect of the whole machine.
Preferably, the sound absorbing module comprises a rectifying plate and a silencing material layer arranged on the rectifying plate, wherein a plurality of silencing holes are formed in the rectifying plate, and the silencing material layer covers the silencing holes.
Specifically, the application adopts the sound absorption module comprising the rectifying plate and the silencing material layer, and the silencing material layer covers the plurality of silencing holes on the rectifying plate so as to effectively eliminate the radiation noise and the reverberation noise in the range hood 200; meanwhile, when the airflow passes through the rectifying plate of the sound absorbing module, the airflow resistance can be effectively reduced, so that the air inlet efficiency is improved, and the oil smoke absorbing effect of the range hood 200 is improved.
Therefore, by adopting the sound absorption module provided by the application, the flow guiding effect on the smoke is realized while the smoke in the smoke machine is subjected to noise reduction, and the smoke absorption effect is improved.
Further, the range hood 200 provided by the application further comprises a fan assembly arranged in the box body, the fan assembly comprises a volute 231, an impeller 232 arranged in the volute 231, a motor coaxially connected with the impeller 232 and a check valve 201, and the motor drives the impeller 232 to rotate, so that the interior of the volute 231 is in a negative pressure state, smoke is sucked into the air inlets of the volutes 231 respectively and is finally discharged through the check valve 201 through an air inlet channel in the volute 231, and the range hood has the advantages of simple structure, reasonable design, simple production process and low production cost.
Further preferably, the casing 212 includes a left side plate 2121, a right side plate 2122 and a middle plate for connecting the left side plate 2121 and the right side plate 2122, a circle of peripheral rectifying plate 271 is installed in the casing 212 corresponding to an air inlet of the volute 231, an air inlet ring 235 is arranged at the air inlet of the volute 231, and the air inlet ring 235 is used for fixing the peripheral rectifying plate 271 so as to have an effective flow guiding effect on flue gas entering the casing, thereby being beneficial to reducing resistance entering the air inlet of the volute 231 and improving smoking effect.
Example two
The technical scheme of the first embodiment is different from that of the first embodiment in that:
as shown in fig. 11 to 12, in the present embodiment, the longitudinal cross-sectional shapes of the first air intake cavity 2211 and the second air intake cavity 2212 are triangular, and the air intake includes an air intake provided on one or more of the four cavity surfaces of the first air intake cavity 2211 and one or more of the four cavity surfaces of the second air intake cavity 2212.
The first air intake cavity 2211 and the second air intake cavity 2212 on the guide plate 221 preferably adopt triangular cavity structures, and air inlets are formed in the first air intake cavity 2211 and the second air intake cavity 2212. Wherein, each triangle cavity all includes four die cavity faces, all is equipped with the air inlet on one or more of four die cavity faces of first air inlet die cavity 2211 and one or more of four die cavity faces of second air inlet die cavity 2212, and quantity, shape and setting position, the shape of arranging of air inlet all are unlimited, only need satisfy the air inlet amount of air inlet can reach the requirement of sucking and discharging clean oil flue gas. And the structure of the triangular cavity is adopted, the structure is simple, the processing technology is simple and convenient, the accelerating flow dividing surface is formed, the effect of effectively dividing and rapidly guiding the ascending smoke can be achieved, and the smoke absorbing effect of the whole machine is improved.
In fig. 11, (1), (2), (3), and (4) are used to refer to four cavity surfaces, respectively, and (5) is used to refer to the cross member 2213.
Preferably, the first air intake cavity 2211 and the second air intake cavity 2212 together form an air intake structure with an M-shaped longitudinal section, the number of the air inlets is two, and the two air inlets are respectively arranged on the cavity surfaces of one side, far away from the cross beam 2213, of the first air intake cavity 2211 and the second air intake cavity 2212.
Specifically, in this embodiment, two air inlets are provided, a first air inlet 2216 is provided on a first air inlet cavity 2211, a second air inlet 2217 is provided on a second air inlet cavity 2212, and the two air inlets are respectively provided on a cavity surface of a side, away from the cross beam 2213, of the first air inlet cavity 2211 and the second air inlet cavity 2212, wherein each air inlet comprises a plurality of air inlets, and the plurality of air inlets can be in a regular shape or in an irregular shape on the cavity surfaces of the first air inlet cavity 2211 and the second air inlet cavity 2212. Meanwhile, the longitudinal section shape formed by the first air inlet cavity 2211 and the second air inlet cavity 2212 is of an M-shaped air inlet structure, so that the cavity surfaces of the first air inlet cavity 2211 and the second air inlet cavity 2212, which are respectively adjacent to one side of the cross beam 2213, form two accelerating and flow dividing surfaces, namely a first accelerating and flow dividing surface 2218 and a second accelerating and flow dividing surface 2219 in fig. 12, so that the flue gas is divided to the left side and the right side respectively through the first accelerating and flow dividing surface 2218 and the second accelerating and flow dividing surface 2219, and then enters the interior of the smoke machine from the air inlet, and further the effect that the flue gas can effectively divide and rapidly guide the rising flue gas is realized.
It should be noted that, by forming the first air intake cavity 2211 and the second air intake cavity 2212 together into an air intake structure with an M-like longitudinal section, the cavity surfaces of the first air intake cavity 2211 and the second air intake cavity 2212, which are adjacent to one side of the cross beam 2213, form two accelerating flow dividing surfaces, and when the air intake is disposed on one or more cavity surfaces of the first air intake cavity 2211 and the second air intake cavity 2212, the flue gas is divided to the left and right sides through the two accelerating flow dividing surfaces, and then enters the interior of the smoke machine from the air intake on each cavity surface, so that the effect of effectively dividing and rapidly guiding the rising flue gas can be achieved.
In addition to the above, the first air intake cavity 2211 and the second air intake cavity 2212 together form an air intake structure with a W-shaped longitudinal section, the number of the air inlets is two, and the two air inlets are respectively arranged on the cavity surfaces of the first air intake cavity 2211 and the second air intake cavity 2212, which are respectively close to one side of the cross beam 2213. In this way, the cavity surfaces of the first air inlet cavity 2211 and the second air inlet cavity 2212, which are respectively far away from one side of the cross beam 2213, form two accelerating flow dividing surfaces, and the smoke is divided into left and right sides through the two accelerating flow dividing surfaces, and enters the interior of the smoke machine from the air inlet, so that the smoke can be effectively divided and rapidly guided.
It should be noted that, when the first air intake cavity 2211 and the second air intake cavity 2212 together form an air intake structure with a W-shaped longitudinal section, the number of air inlets may also be plural, and the plural air inlets are disposed on one or more cavity surfaces of the first air intake cavity 2211 and one or more cavity surfaces of the second air intake cavity 2212.
Preferably, the cavity surface provided with the air inlet comprises a panel and the air inlet arranged on the panel, or the cavity surface provided with the air inlet comprises a plate frame with an opening and a filter screen covered at the opening, and the filter screen comprises a plurality of air inlets.
Wherein, the structural style of die cavity face can be: a panel and an air inlet arranged on the panel; the air inlet can comprise a plurality of air inlets, and the number, shape and arrangement form of the air inlets are not particularly limited, and only the requirement of rated air inlet quantity is met. The number, shape and arrangement form of the air inlet holes can be reasonably selected according to practical implementation conditions.
In addition, the structural form of the cavity surface can be as follows: the plate frame and the filter screen arranged on the plate frame; the filter screen is of a structure with an air inlet, the air inlet can comprise a plurality of air inlets, the number, the shape and the arrangement form of the air inlets are not particularly limited, and the requirement of rated air inlet quantity is met. The number, shape and arrangement form of the air inlet holes can be reasonably selected according to practical implementation conditions.
It should be noted that, the fixed connection mode of the filter screen and the plate frame may be: one of clamping connection, threaded connection, rivet connection, welding or bonding, has simple structure, simple and convenient processing technology, is beneficial to reducing the processing cost and has good connection effect.
Further preferably, the air intake front end assembly provided by the present application further includes a condensation plate rotatably connected to the deflector 221, so as to open or close the air inlets provided on the first air intake cavity 2211 and the second air intake cavity 2212.
Like the technical scheme of embodiment one, so, when the range hood is not used, the condensation plate can rotate to cover on the air inlets of the first air inlet cavity and the second air inlet cavity of the guide plate, on one hand, prevent dust from entering the range hood to cause noise and other phenomena, on the other hand, effectively improve the aesthetic property; when the range hood is used, the condensing plate can be rotated to open the air inlets of the first air inlet cavity and the second air inlet cavity of the guide plate, so that the range hood can be used normally.
Other technical solutions are the same as those of the first embodiment, and in order to avoid repetition, a description thereof will be omitted.
In summary, the application provides a range hood, which comprises a box body and an air inlet front end assembly, wherein the air inlet front end assembly comprises a guide plate, and the guide plate is arranged on the box body; the left side of guide plate is equipped with the first air inlet die cavity that the orientation of orientation was protruding establishes, and the right side of guide plate is equipped with the second air inlet die cavity that the orientation was protruding establishes towards the box orientation, and first air inlet die cavity and second air inlet die cavity all are equipped with at least one air intake. The range hood provided by the application has the advantages of extremely large smoke gathering and smoking for double stoves by adopting double-cavity negative pressure distribution, and particularly, by arranging the left air inlet cavity and the right air inlet cavity, the inflowing air flow can be uniformly distributed towards the two sides of the guide plate, so that the flow distribution is accelerated, the smoke gathering area of the left side and the right side of the range hood is increased, and the effective improvement of the smoke absorbing effect is facilitated. In addition, the range hood provided by the application has the advantages of simple structure, reasonable design, good smoke gathering and smoking effects and strong practicability, and is beneficial to standardized production and popularization.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (6)
1. A range hood, characterized in that: the air inlet front end assembly comprises a guide plate, and the guide plate is arranged on the box; the left side of the guide plate is provided with a first air inlet cavity protruding towards the box body, and the right side of the guide plate is provided with a second air inlet cavity protruding towards the box body; the first air inlet cavity and the second air inlet cavity are respectively provided with at least one air inlet;
the first air inlet cavity and the second air inlet cavity are separated by a cross beam;
the longitudinal section shapes of the first air inlet cavity and the second air inlet cavity are triangular, and the air inlet comprises air inlets arranged on one or more of four cavity surfaces of the first air inlet cavity and one or more of four cavity surfaces of the second air inlet cavity;
a sound absorption module is arranged on one side of the cross beam, which is close to the box body; the left side of the sound absorption module is provided with a first diversion inclined plane arranged along the air inlet direction of the first air inlet cavity, and/or the right side of the sound absorption module is provided with a second diversion inclined plane arranged along the air inlet direction of the second air inlet cavity;
the box body comprises a shell and a rack which is connected with the shell and is positioned above the shell, and the volute is arranged in an installation space formed by the shell and the rack together;
the casing includes left side board, right side board and is used for connecting left side board, right side board's intermediate lamella, installs round peripheral rectification board at the inside air inlet that corresponds the spiral case of casing, and the air inlet department of spiral case is equipped with the inlet ring, and the inlet ring is used for fixed circumference rectification board.
2. The range hood of claim 1, wherein: the longitudinal section shapes of the first air inlet cavity and the second air inlet cavity are trapezoidal, and the air inlets are formed in one or more of the upper bottom surface of the first air inlet cavity and the four waist surfaces, and one or more of the upper bottom surface of the second air inlet cavity and the four waist surfaces.
3. The range hood of claim 1, wherein: the first air inlet cavity and the second air inlet cavity jointly form an air inlet structure with an M-shaped longitudinal section, the number of the air inlets is two, and the two air inlets are respectively arranged on the cavity surface of one side, away from the cross beam, of each of the first air inlet cavity and the second air inlet cavity.
4. The range hood of claim 1, wherein: the first air inlet cavity and the second air inlet cavity jointly form an air inlet structure with a W-shaped longitudinal section, the number of the air inlets is two, and the two air inlets are respectively arranged on the cavity surfaces of one side, close to the cross beam, of each of the first air inlet cavity and the second air inlet cavity.
5. The range hood of claim 1, wherein: the die cavity surfaces provided with the air inlets comprise a panel and the air inlets arranged on the panel, or the die cavity surfaces provided with the air inlets comprise plate frames with openings and filter screens covered at the openings, and the filter screens comprise a plurality of air inlets.
6. The range hood of claim 1, wherein: the air inlet front end assembly further comprises a condensation plate assembly, and the condensation plate assembly moves relative to the guide plate through a connecting piece so as to open or cover the air inlet; wherein the movement comprises a rotation and/or a translation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060914.5A CN107990392B (en) | 2018-01-22 | 2018-01-22 | Fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060914.5A CN107990392B (en) | 2018-01-22 | 2018-01-22 | Fume exhauster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107990392A CN107990392A (en) | 2018-05-04 |
| CN107990392B true CN107990392B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810060914.5A Active CN107990392B (en) | 2018-01-22 | 2018-01-22 | Fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107990392B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154483A (en) * | 2021-01-29 | 2021-07-23 | 宁波方太厨具有限公司 | Air inlet assembly and range hood with same |
| CN112902250A (en) * | 2021-01-29 | 2021-06-04 | 宁波方太厨具有限公司 | Air inlet assembly and range hood with same |
| CN112902256A (en) * | 2021-01-29 | 2021-06-04 | 宁波方太厨具有限公司 | Air inlet assembly and range hood with same |
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| CN201731544U (en) * | 2010-07-20 | 2011-02-02 | 青岛兴邦电子电器有限公司 | Range hood provided with flow deflector allowing air intake from two sides |
| CN204084529U (en) * | 2014-10-15 | 2015-01-07 | 商渊沅 | Top-sucking kitchen ventilator |
| CN104791870A (en) * | 2015-04-03 | 2015-07-22 | 九阳股份有限公司 | Efficient mute range hood |
| CN106091062A (en) * | 2016-08-09 | 2016-11-09 | 广东美的厨房电器制造有限公司 | Range hood |
| CN205878293U (en) * | 2016-08-09 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Range hood |
| CN206377716U (en) * | 2016-11-04 | 2017-08-04 | 余永富 | A kind of double air intake hanging cupboard lampblack absorbers of detachable side-suction type |
| CN207865496U (en) * | 2018-01-22 | 2018-09-14 | 广东美的厨房电器制造有限公司 | A kind of range hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201731544U (en) * | 2010-07-20 | 2011-02-02 | 青岛兴邦电子电器有限公司 | Range hood provided with flow deflector allowing air intake from two sides |
| CN204084529U (en) * | 2014-10-15 | 2015-01-07 | 商渊沅 | Top-sucking kitchen ventilator |
| CN104791870A (en) * | 2015-04-03 | 2015-07-22 | 九阳股份有限公司 | Efficient mute range hood |
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| CN205878293U (en) * | 2016-08-09 | 2017-01-11 | 广东美的厨房电器制造有限公司 | Range hood |
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| Publication number | Publication date |
|---|---|
| CN107990392A (en) | 2018-05-04 |
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