CN216716320U - Smoke exhaust ventilator - Google Patents

Smoke exhaust ventilator Download PDF

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Publication number
CN216716320U
CN216716320U CN202120529875.6U CN202120529875U CN216716320U CN 216716320 U CN216716320 U CN 216716320U CN 202120529875 U CN202120529875 U CN 202120529875U CN 216716320 U CN216716320 U CN 216716320U
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China
Prior art keywords
air
air inlet
air outlet
purification
range hood
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CN202120529875.6U
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Chinese (zh)
Inventor
刘智
梁泽锋
曲绍鹤
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Priority to CN202120529875.6U priority Critical patent/CN216716320U/en
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Abstract

The utility model discloses a range hood, wherein the range hood comprises a shell and an air purification device, the shell is provided with an oil smoke suction air channel and a purification air channel which are mutually independent, the oil smoke suction air channel is used for communicating the indoor space and the outdoor space, the shell is provided with an air inlet and an air outlet which are communicated with the purification air channel, and the air inlet and the air outlet are respectively used for communicating the indoor space; air purification device includes that the ion takes place subassembly and purification fan, and the ion takes place the subassembly and locates in purifying air duct, and purification fan is used for making the air current take place the subassembly flow direction air outlet via the ion from the air intake. When the range hood works, most of oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct, and a small part of oil smoke can escape to other spaces in a kitchen. The small part of oil smoke can be purified by the ion generating assembly, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced.

Description

Smoke exhaust ventilator
Technical Field
The utility model relates to the technical field of household appliances, in particular to a range hood.
Background
During the cooking process, oil smoke is generated, and the oil smoke not only pollutes the air environment, but also damages the health of human bodies. The traditional range hood can rapidly discharge oil smoke to the outside, and reduces the pollution to the air environment in a kitchen and the damage to the health of human bodies. However, during cooking, there is always oil smoke escaping from the conventional range hood and dissipating into the kitchen space. The escaping oil smoke can still cause oil smoke pollution and harm to the health of human bodies, and especially, when the escaping oil smoke exists for a long time, bacteria and viruses are easy to breed in the kitchen space, so that the health of human bodies is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a range hood, aiming at further reducing the pollution of oil smoke to the air environment and the damage to the health of human bodies.
In order to achieve the above object, the present invention provides a range hood, comprising:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with an oil fume suction air duct and a purification air duct which are mutually independent, the oil fume suction air duct is used for communicating the indoor space and the outdoor space, the shell is provided with an air inlet and an air outlet which are communicated with the purification air duct, and the air inlet and the air outlet are respectively used for communicating the indoor space; and
air purification device, including ion generation subassembly and purification fan, the ion generation subassembly is located in the purification wind channel, purification fan is used for making the air current certainly the air intake via the ion generation subassembly flow direction the air outlet.
In one embodiment, the ion generating assembly is disposed at the air inlet.
In an embodiment, the ion generating assembly is exposed from the air inlet, and the ion generating assembly is detachably connected to the purification air duct through the air inlet.
In an embodiment, the air purification device further includes a purification shell, the purification shell is disposed in the housing, an airflow channel is disposed in the purification shell, the purification shell is provided with an air inlet and an air outlet which are communicated with the airflow channel, the air inlet and the air outlet are respectively communicated with the air inlet and the air outlet, the purification air channel includes the airflow channel, and the ion generation assembly and the purification fan are both disposed in the airflow channel;
the ion generation assembly is arranged at the air inlet and the air inlet, and the ion generation assembly is detachably connected with the airflow channel through the air inlet and the air inlet.
In one embodiment, the ion generating assembly comprises a shell and an ion generating module, the shell is arranged at the air inlet, the shell comprises a functional part and a disassembling and assembling part which are connected, the air inlet reaches the direction of the air outlet, the functional part comprises an air inlet plate and an air outlet plate, the ion generating module is arranged in the functional part and is positioned between the air inlet plate and the air outlet plate, the air inlet plate and the disassembling and assembling part are exposed from the air inlet, and the exposed side of the disassembling and assembling part is provided with a handle fastening position.
In one embodiment, the functional portion is located above the detachable portion; and/or
In the direction from the air inlet to the air outlet, the thickness of the functional part is larger than that of the dismounting part, and the exposed side of the functional part is flush with that of the dismounting part.
In an embodiment, the ion generating assembly includes a housing and an ion generating module, the housing is disposed at the air inlet, the housing includes a functional portion, the air inlet is in the direction of the air outlet, the functional portion includes an air inlet plate and an air outlet plate, and the ion generating module is disposed in the functional portion and is located between the air inlet plate and the air outlet plate.
In one embodiment, the air inlet plate is positioned above the air outlet; and/or
The air inlet plate is a grid plate.
In one embodiment, the air inlet plate comprises a first air inlet portion and a second air inlet portion which are arranged at an included angle.
In an embodiment, at least a portion of the air inlet is located on a side surface of the housing, at least a portion of the air inlet is located on a front surface of the housing, the first air inlet portion is disposed corresponding to a portion of the air inlet located on the side surface of the housing, and the second air inlet portion is disposed corresponding to a portion of the air inlet located on the front surface of the housing.
In one embodiment, the function portion further comprises a connecting plate for connecting the air inlet plate and the air outlet plate, the connecting plate is provided with a dismounting opening, and the ion generation module is detachably connected with the function portion through the dismounting opening.
In an embodiment, the ion generating module includes a plasma generating structure, the plasma generating structure includes a first electrode unit and a second electrode unit through which the air flow can pass, the first electrode unit and the second electrode unit are arranged at intervals in the direction from the air inlet to the air outlet and are located between the air inlet plate and the air outlet plate, and the first electrode unit and the second electrode unit are matched to ionize the gas located between the first electrode unit and the second electrode unit.
In an embodiment, in a direction from the air inlet to the air outlet, the first electrode unit is located at an upstream of the second electrode unit, the first electrode unit includes a plurality of first electrodes arranged at intervals, the second electrode unit includes a second electrode, and the second electrode is in a grid shape.
In an embodiment, the first electrode unit further includes a plurality of first dielectrics arranged at intervals, the first dielectrics are hollow structures with openings at two ends, and the plurality of first electrodes are respectively inserted into the plurality of first dielectrics;
or, the second electrode unit further includes a second dielectric in a grid shape, the second dielectric and the second electrode are stacked, and the second dielectric is closer to the first electrode unit than the second electrode.
In an embodiment, the air purification device further includes an auxiliary degradation module capable of allowing an air flow to pass through, the auxiliary degradation module is disposed between the first electrode unit and the second electrode unit, the first electrode unit and the auxiliary degradation module are disposed at an interval and/or the second electrode unit and the auxiliary degradation module are disposed at an interval in a direction from the air inlet to the air outlet, and the auxiliary degradation module is capable of adsorbing and degrading the oil smoke and/or catalyzing and degrading the oil smoke.
In one embodiment, the auxiliary degradation module comprises a porous substrate;
the substrate can adsorb and degrade oil smoke; and/or
The auxiliary degradation module further comprises a catalyst disposed on the substrate.
In an embodiment, in a direction from the air inlet to the air outlet, the first electrode unit is located upstream of the second electrode unit, the auxiliary degradation module is spaced by a millimeter-millimeter from the first electrode unit, and the auxiliary degradation module is in contact with the second electrode unit.
In an embodiment, the ion generating assembly further includes a mounting frame, and the first electrode unit and the second electrode unit are respectively disposed on two sides of the mounting frame in the airflow direction;
the auxiliary degradation module is a plurality of, the installing frame has a plurality of installation positions that separate each other, and is a plurality of the auxiliary degradation module is located a plurality of respectively on the installation position.
In an embodiment, the ion generation module includes a charge structure, the air purification device further includes an electrostatic adsorption structure, the electrostatic adsorption structure is arranged in the functional part and is located between the charge structure and the air outlet plate, the charge structure is used for generating ions and charging the oil smoke, and the electrostatic adsorption structure is used for adsorbing charged particles.
In one embodiment, the electrostatic adsorption structure comprises a plurality of collecting polar plates and a plurality of repelling polar plates, wherein the collecting polar plates and the repelling polar plates are alternately arranged, and the adjacent collecting polar plates and the adjacent repelling polar plates are arranged at intervals;
the charging structure comprises a plurality of discharging tips and a plurality of charging polar plates which are arranged at intervals, the plurality of charging polar plates are arranged at intervals along the arrangement direction of the plurality of collecting polar plates, one discharging tip is arranged between every two adjacent charging polar plates, and the two adjacent charging polar plates and the discharging tip positioned between the two adjacent charging polar plates form a charging unit;
the two charged polar plates in the charged unit are respectively arranged corresponding to the two collecting polar plates, and at least one collecting polar plate is arranged between the two charged polar plates in the charged unit, wherein the charged polar plates in the charged unit and the collecting polar plates corresponding to the charged polar plates are integrally formed.
In one embodiment, the ion generating assembly is disposed at the air outlet.
In an embodiment, the air purification device further includes a purification shell, the purification shell is disposed in the housing, an airflow channel is disposed in the purification shell, the purification shell is provided with an air inlet and an air outlet which are communicated with the airflow channel, the air inlet and the air outlet are respectively communicated with the air inlet and the air outlet, the purification air channel includes the airflow channel, and the ion generation assembly and the purification fan are both disposed in the airflow channel;
wherein, the ion generating assembly is positioned at the air outlet.
In an embodiment, the ion generating assembly is exposed from the air outlet, and the ion generating assembly is detachably connected with the airflow channel of the purifying shell through the air outlet.
In an embodiment, an inner wall of the airflow channel of the purification shell is provided with a mounting groove extending towards the air outlet, and the ion generating assembly is arranged in the mounting groove.
In an embodiment, the air outlet is located on the front surface of the housing, the air outlet is located on the front surface of the purifying housing, and the area of the air outlet is larger than that of the air outlet, wherein the ion generating assembly is exposed from the air outlet, and the ion generating assembly is located above the air outlet.
In one embodiment, the ion generating assembly comprises a negative ion generator or a positive ion generator;
the air purification device further comprises an electrostatic adsorption structure or a filtering piece for adsorbing charged particles, wherein the electrostatic adsorption structure or the filtering piece is arranged in the purification air duct and is positioned at the air inlet.
In one embodiment, the air purification apparatus further comprises a housing, and the electrostatic adsorption structure or the filter element is disposed in the housing;
the shell is arranged in the purification air channel and is positioned at the air inlet, the shell is exposed from the air inlet, and the shell passes through the air inlet and the purification air channel which are detachably connected.
In one embodiment, the ion generating assembly includes at least one of a negative ion generator, a positive ion generator, and a plasma generator.
In an embodiment, the air purification device further includes a controller, the controller is electrically connected to the purification fan, and the controller is configured to control a turning direction of the purification fan to change so as to drive the flow direction of the air flow in the purification air duct to switch between the air inlet and the air outlet.
In one embodiment, the ion generating assembly is disposed at the air outlet.
When the air purification device of the range hood works, the ion generating assembly can ionize airflow passing through the ion generating assembly. When the ion generating assembly ionizes the oil smoke in the airflow, the oil smoke in the airflow can be ionized, degraded and purified; when the ion generation assembly ionizes airflow (air and oil smoke), generated ions can enable oil smoke particles to be charged, and the charged oil smoke particles can be adsorbed in the air purification device more quickly, so that the oil smoke in the airflow can be adsorbed and purified. Therefore, the ion generating assembly is arranged in the purifying air duct of the air purifying device, so that the oil smoke purifying effect in the kitchen environment can be obviously improved. When positive and negative ions generated by the ion generating assembly are close to bacteria and viruses, a positive and negative electric field is formed around the bacteria and the viruses, and the bacteria and the viruses can be shocked under the action of the positive and negative electric field to change the polarity of proteins of the bacteria and the viruses, so that the bacteria and the germs are killed, and the bacteria and the viruses in a kitchen space and/or a purification air channel are effectively reduced.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a front side of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic side view of the range hood shown in fig. 1;
fig. 3 is a partially exploded perspective view of the air cleaning device of the range hood shown in fig. 1;
fig. 4 is a partially exploded perspective view of the air cleaning device of the range hood shown in fig. 1;
FIG. 5 is a schematic perspective view of an ion generating module of the ion generating assembly shown in FIG. 4;
FIG. 6 is a schematic perspective view of the ion generating module shown in FIG. 5 from another perspective;
FIG. 7 is a schematic perspective exploded view of the ion generation module shown in FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 7 at A;
FIG. 9 is a schematic perspective cross-sectional view of the ion generation module shown in FIG. 5;
fig. 10 is a schematic perspective view of an electrostatic adsorption structure of an air purification device of a range hood according to another embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of the electrostatic adsorption structure shown in FIG. 10;
FIG. 12 is a schematic perspective view of the electrostatic adsorption structure and the ion generation module of FIG. 10 integrated together;
FIG. 13 is a schematic cross-sectional view of the electrostatic adsorption structure and the ion generation module of FIG. 12 integrated together;
fig. 14 is a partially exploded perspective view of an air purifying device of a range hood according to another embodiment of the present invention;
fig. 15 is a schematic perspective view of a range hood according to another embodiment of the present invention;
fig. 16 is a schematic perspective view of a range hood according to another embodiment of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Smoke exhaust ventilator 12 Shell body
14 Air purifying device 12a Air inlet
12b Air outlet 200 Ion generating assembly
300 Purifying fan 400 Purifying shell
12c Control switch 122 Decorative cover
124 Exhaust fume collecting hood 102 Air outlet grille
1022 Wind-guiding grid 210 Outer casing
220 Ion generating assembly 212 Functional part
214 Detachable part 212a Air inlet plate
212b Air outlet plate 2122 A first air inlet part
2124 Second air inlet part 212c Dismounting port
2142 Hand buckling position 402 Air inlet
404 Air outlet 220a Plasma generating structure
222a First electrode unit 224a Second electrode unit
2222a A first electrode 2224a First dielectric
500 Auxiliary degradation module 226a Mounting frame
2262a Mounting position 2226a Mounting plate
220b Charge structure 600 Electrostatic adsorption structure
406 Mounting groove 610 Collecting polar plate
620 Repelling polar plate 222b Discharge tip
224b Charged polar plate 202b Charge unit
700 Filter element
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a range hood 10.
In the embodiment of the present invention, as shown in fig. 1 to 4, the range hood 10 includes a housing 12 and an air purifying device 14.
The housing 12 has a range hood duct. The smoke inlet of the oil smoke suction air duct is used for being communicated with the indoor and is usually suspended above a kitchen range so as to suck oil smoke into the oil smoke suction air duct; the smoke outlet of the oil smoke suction duct is communicated with the outside so as to discharge oil smoke to the outside. In this embodiment, a smoke blower is further disposed in the housing 12 for flowing the airflow including smoke from the smoke inlet to the smoke outlet. Wherein, the oil smoke suction duct and the oil smoke blower are used for forming the main body of the range hood 10. The main body of the range hood has the functions of the traditional range hood.
The housing 12 also has a purge air duct. The purification air duct and the oil fume suction air duct are mutually independent. The housing 12 is provided with an air inlet 12a and an air outlet 12b which are communicated with the purification air duct. The air inlet 12a and the air outlet 12b are respectively used for being communicated with the indoor. When the range hood 10 works, most of the oil smoke generated in the cooking process is discharged to the outside through the oil smoke suction air duct, and a small part of the oil smoke escapes to other spaces in the kitchen. The small part of the oil smoke can be further removed through the synergistic effect of the purification air channel and the air purification device 14, so that the pollution of the oil smoke to the air environment and the damage to the health of a human body are further reduced.
In the present embodiment, the air cleaning device 14 includes an ion generating assembly 200 and a cleaning fan 300. The ion generating assembly 200 is disposed in the purge air duct. The cleaning fan 300 is used to make the air flow from the air inlet 12a to the air outlet 12b via the ion generating assembly 200.
In operation of the air purification apparatus 14, the ion generating assembly 200 can ionize the airflow passing through the ion generating assembly 200. When the ion generating assembly 200 ionizes the oil smoke in the airflow, the oil smoke in the airflow can be ionized, degraded and purified; when the ion generating assembly 200 ionizes the airflow (air and soot), the generated ions can charge the soot particles, and the charged soot particles can be absorbed in the air purifying device 14 more quickly, so as to absorb and purify the soot in the airflow. Therefore, the arrangement of the ion generating assembly 200 in the purifying air duct of the air purifying device 14 can significantly increase the oil smoke purifying effect in the kitchen environment. When the positive and negative ions generated by the ion generating assembly 200 are close to bacteria and viruses, a positive and negative electric field is formed around the bacteria and viruses, and the bacteria and the viruses are shocked under the action of the positive and negative electric field to change the polarity of the proteins of the bacteria and the viruses, so that the bacteria and the germs are killed, and the bacteria and the viruses in a kitchen space and/or a purification air duct are effectively reduced.
In the present embodiment, the range hood main body (the smoke ventilator) and the air purification device 14 (the ion generation assembly 200 and the purification blower 300) are connected to the same controller, that is, the range hood 10 controls the range hood main body and the air purification device 14 through the same controller. The controller is typically provided on the body of the cigarette maker. The body of the cigarette maker is typically larger in volume than the air cleaning device 14, thereby providing more locations and space for the controller to be mounted. In other embodiments, the range hood 10 may also be provided with two different controllers for controlling the range hood body and the air cleaning device 14, respectively.
In the embodiment, the cigarette machine main body and the air purification device 14 share one control switch 12c, so that when the cigarette machine main body is turned on through the control switch 12c to work, the air purification device 14 can be automatically turned on to work at the same time, namely, the cooperative work of turning on the cigarette machine main body and the air purification device 14 by one key can be realized. The control switch 12c is typically electrically connected to a controller to effect on/off control.
In other embodiments, different control switches 12c can be used for the cigarette maker main body and the air cleaning device 14 respectively to realize independent on-off control of the cigarette maker main body and the air cleaning device 14, so that a user can use the functions of the cigarette maker main body and the air cleaning device 14 more flexibly.
In the present embodiment, the housing 12 includes a trim cover 122 and a smoke collection cover 124. The smoke collection cover 124 is provided below the decorative cover 122. The range hood duct and the purge duct are both located within the trim cover 122. The intake vent 12a and the exhaust vent 12b are both located on the trim cover 122. In this manner, the extractor hood 10 may be provided with greater integrity.
In the present embodiment, the outlet 12b is located on the front surface of the decorative cover 122. Thus, after the air purification device 14 is turned on, the air purification device 14 blows air forward or at least has a forward air-out component. During cooking, a user usually stands in front of the range hood 10, and a space in front of the range hood 10 may be defined as a user breathing zone. It can be understood that the forward air outlet is favorable for conveying the purified air to the user breathing area, thereby being favorable for improving the air quality of the user breathing area, further reducing the probability of the user sucking the oil smoke, and reducing the harm of the oil smoke to the health of the user.
In other embodiments, the outlet 12b may be located on the top surface of the trim cover 122. Thus, after the air purification device 14 is turned on, the air purification device 14 blows air upward or at least has an upward air flow component. It can be understood that, due to the effect of the thermal plume in the cooking process, the oil smoke tends to gather in the upper half portion of the kitchen space, and the upward air outlet is beneficial to blowing the purified air to the upper half portion of the kitchen space, so that the oil smoke in the upper half portion of the kitchen space flows downward under the pushing of the upward blown purified air by the purified air, and is sucked and purified by the air inlet 12a of the air purification device 14, thereby realizing the air circulation purification in the kitchen, and further reducing the oil smoke in the kitchen.
In this embodiment, the air outlet direction of the air outlet 12b is adjustable. Thus, the air outlet 12b located on the front surface of the decoration cover 122 can meet more air outlet requirements of the user on the air purification device 14 by changing the air outlet direction, for example, the requirements of users with different heights for direct blowing or non-direct blowing are met.
In the present embodiment, the outlet 12b is provided with an outlet grille 102 to prevent the foreign objects from extending into the decoration cover 122 from the outlet 12 b. Further optionally, the air outlet grille 102 includes a rotatable air guiding bar 1022, so that the air outlet direction of the air outlet 12b is adjusted by rotating the air guiding bar 1022, and the air outlet direction of the air outlet 12b is continuously adjustable. In other embodiments, a plurality of air outlet grills 102 with fixed air guiding grills 1022 may be configured, and the air outlet grills 102 with different air outlet grills 102 have different inclination angles with the vertical plane, and the air outlet grills 102 with the corresponding inclination angles of the air guiding grills 1022 are selected to be installed on the air outlet 12b according to the requirement of the air outlet direction. Thus, the air outlet direction of the air outlet 12b can be changed by replacing different air outlet grilles 102. In addition, in the present embodiment, the air outlet grille 102 further includes a grille frame, and the air guiding grills 1022 are connected to the grille frame, and the grille frame is usually detachably connected to the air outlet 12b, and can be mounted on the air outlet 12b by using one or more detachable structures, such as a screw locking structure, a snap structure, and the like, but not limited thereto.
In this embodiment, at least a portion of the intake vent 12a is located on a side of the trim cover 122. Therefore, the oil smoke escaping to the side of the range hood 10 can be sucked into the decoration cover 122, so as to reduce the oil smoke at the side of the range hood 10. Particularly, when a dual-burner range is used under the range hood 10, the cooking fumes generated during cooking easily escape from the side of the range hood 10, and the air inlet 12a located on the side of the decorative cover 122 is more beneficial to sucking the cooking fumes.
In this embodiment, at least a portion of the intake vent 12a is located on the front side of the trim cover 122. It should be noted that, in the present embodiment, at least a portion of the air inlet 12a is located on the front surface of the decoration cover 122, which means that in the structural schematic diagram of the front surface of the range hood 10 (see fig. 1 specifically), at least a portion of the air inlet 12a is visible. In this way, on the premise of not changing the area of the air inlet 12a on the side of the decorative cover 122, the area of the air inlet 12a can be increased by extending the air inlet 12a from the side of the decorative cover 122 to the front of the decorative cover 122, so that the air intake amount of the air cleaning device 14 can be increased. And the air inlet 12a on the front side of the decorative cover 122 is favorable for sucking the oil smoke escaping to the front of the range hood 10 into the decorative cover 122, so as to reduce the oil smoke in the front of the range hood 10.
In the present embodiment, in a direction from the front of the decorative cover 122 to the side of the decorative cover 122, the width of the partial air inlet 12a located on the front of the decorative cover 122 is smaller than the width of the partial air inlet 12a located on the side of the decorative cover 122. Therefore, the oil smoke escaping to the side of the range hood 10 and the oil smoke escaping to the front of the range hood 10 can be better absorbed at the same time.
In other embodiments, the air inlet 12a may also be disposed on the top surface of the trim cover 122. Thus, the oil smoke escaping to the upper part of the air purification device 14 is favorably sucked and purified. It can be understood that the oil smoke tends to escape upwards due to the action of the thermal plume during the cooking process, so that more oil smoke is collected above the air purification device 14, and the air inlet 12a is disposed on the top surface of the decoration cover 122, so as to facilitate the suction of the oil smoke.
In this embodiment, the number of the air inlets 12a is two, and the two air inlets 12a are respectively located at the left and right sides of the air outlet 12 b. In other embodiments, when the number of the air inlets 12a is two, at least a portion of one air inlet 12a may be located on the left side or the right side of the decorative cover 122, and the other air inlet 12a may be located on the top surface of the decorative cover 122. In other embodiments, the number of the air inlets 12a may also be multiple (equal to or greater than three), and taking the number of the air inlets 12a as three as an example, at least parts of two air inlets 12a are respectively located on the left side surface and the right side surface of the decorative cover 122, and another air inlet 12a is located on the top surface of the decorative cover 122. Thus, the oil smoke above the air purifying device 14 and at the side of the range hood 10 can be reduced at the same time.
In the present embodiment, the ion generating assembly 200 is disposed at the air inlet 12 a. In the present embodiment, the number of the ion generating assemblies 200 is the same as the number of the air inlets 12a, and the ion generating assemblies are arranged in a one-to-one correspondence. In other embodiments, the number of the ion generating elements 200 may be the same as the number of the air outlets 12b, and each ion generating element 200 is disposed adjacent to one air outlet 12b, in this case, the number of the ion generating elements 200 may be smaller or larger than the number of the air inlets 12 a.
In the present embodiment, the ion generating assembly 200 is exposed from the air inlet 12 a. The ion generating assembly 200 is detachably connected to the clean air duct of the housing 12 through the air inlet 12 a. Thus, when the ion generating assembly 200 is replaced or the ion generating assembly 200 is maintained, the housing 12 does not need to be disassembled and assembled, which is more convenient.
In the present embodiment, the ion generating assembly 200 includes a housing 210 and an ion generating module 220. The housing 210 is provided at the intake vent 12 a. The housing 210 includes a functional portion 212 and a detachable portion 214 connected thereto. In the direction from the air inlet 12a to the air outlet 12b, the functional portion 212 includes an air inlet plate 212a and an air outlet plate 212 b. The ion generating module 220 is disposed in the functional portion 212 and located between the air inlet plate 212a and the air outlet plate 212 b. The air inlet panel 212a and the detachable portion 214 are exposed from the air inlet 12 a. Thus, the ion generating assembly 200 and the purification air duct can be conveniently disassembled through the disassembling portion 214.
In the present embodiment, the functional portion 212 is located above the air outlet 12b in the height direction of the hood 10. That is, the air inlet plate 212a and the air outlet plate 212b are located above the air outlet 12 b. Therefore, the oil smoke escaping to the upper part of the air outlet 12b is favorably sucked and purified.
In the present embodiment, the air inlet plate 212a is a grill plate. Thus, not only the air flow can enter the ion generating module 220 through the air inlet plate 212a, but also foreign materials can be prevented from entering the ion generating module 220. In other embodiments, the air inlet plate 212a can also be a grid plate or a micro-porous plate.
In this embodiment, the air inlet plate 212a includes a first air inlet portion 2122 and a second air inlet portion 2124 arranged at an included angle. In this manner, different angles of gas flow into the ion generating assembly 200 are facilitated.
In this embodiment, at least a portion of the intake vent 12a is located on a side of the trim cover 122, and at least a portion of the intake vent 12a is located on a front of the trim cover 122. The first air inlet portion 2122 is disposed corresponding to a portion of the air inlet 12a located at the side of the decorative cover 122, and the second air inlet portion 2124 is disposed corresponding to a portion of the air inlet 12a located at the front of the decorative cover 122.
In the present embodiment, the passage area of the air outlet plate 212b for the air flow is larger than the passage area of the air inlet plate 212a (grid plate) for the air flow. Thus, the wind resistance of the ion generating assembly 200 is reduced while foreign materials are prevented from entering the ion generating module 220. In this embodiment, the air outlet plate 212b is a through hole plate (the through holes of the through hole plate are larger than those of the grating plate, the grid plate or the micro porous plate).
In this embodiment, the function portion 212 further includes a connecting plate for connecting the air inlet plate 212a and the air outlet plate 212 b. The connecting plate is provided with a dismounting opening 212 c. The ion generating module 220 is detachably connected to the functional unit 212 through the attachment/detachment port 212 c. Thus, the ion generating module 220 is very easily disassembled.
In the present embodiment, in the air purification apparatus 14, the attachment/detachment port 212c is closed by the inner wall of the purification air duct, so that the ion generation module 220 can be stably fixed in the functional portion 212 without additionally providing a closing plate for closing the attachment/detachment port 212 c. In other embodiments, a closing plate that can close and open the attachment/detachment port 212c may be provided to prevent the ion generation module 220 from falling out of the functional unit 212.
In the present embodiment, in the direction from the air inlet 12a to the air outlet 12b, the thickness of the functional portion 212 is greater than that of the detachable portion 214, and the exposed side of the functional portion 212 is substantially flush with the exposed side of the detachable portion 214. In this way, on the premise that the housing 210 accommodates the ion generating module 220, the size of the housing 210 can be made smaller, which is beneficial to making the whole air purifying device 14 have a smaller size.
In the present embodiment, the functional portion 212 is located above the detachable portion 214. Since the range hood 10 is typically suspended above the cooktop of a kitchen. The detachable portion 214 is located below the functional portion 212, so as to avoid the situation that the ion generating assembly 200 and the purge air duct are not conveniently detached due to the over-high position of the detachable portion 214.
In this embodiment, the ion generating assembly 200 is detachably connected to the housing 12 through the air inlet 12 a. The exposed side of the detachable portion 214 is provided with a fastening handle 2142. Thus, it is very convenient to assemble and disassemble the ion generating assembly 200 through the fastening position 2142. In the present embodiment, the fastening position 2142 is a groove opened on the exposed side of the mounting portion 214 for a hand to enter.
In this embodiment, the air purification device 14 further includes a purification case 400. The purge shell 400 is provided within the trim cover 122. The purification case 400 has an air flow passage. The purifying housing 400 is provided with an air inlet 402 and an air outlet 404 communicated with the airflow channel. The air inlet 402 and the air outlet 404 are respectively communicated with the air inlet 12a and the air outlet 12 b. The purifying air duct includes an air flow passage, that is, the air flow passage is a part of the purifying air duct or the air flow passage is the purifying air duct. The ion generating assembly 200 and the purifying fan are both arranged in the airflow channel. The air purification device 14 is provided with the independent purification shell 400, which can more accurately limit the purification air channel, thereby accurately guiding the trend of the purified air flow and improving the purification efficiency. In addition, the purification shell 400 can provide attachment for the ion generating assembly 200 and the purification fan more conveniently. It is understood that in other embodiments, the purge air duct may be isolated by providing a partition-like member within the trim cover 122. In this case, the purification case 400 may be omitted.
In this embodiment, the ion generating assembly 200 is disposed at both the air inlet 12a and the air inlet 402. That is, the air inlet 12a is disposed adjacent to the air inlet 402, a part of the ion generating assembly 200 is located at the air inlet 12a, and a part of the ion generating assembly 200 is located at the air inlet 402. Ion generating assembly 200 is removably coupled to the airflow path via inlet 12a and inlet 402. Thus, when the ion generating assembly 200 is replaced or the ion generating assembly 200 is maintained, the housing 12 does not need to be disassembled and assembled, which is more convenient. In addition, the assembly of the ion generating assembly 200 is facilitated, and the assembly efficiency of the range hood 10 can be improved.
In the present embodiment, the outlet 12b is disposed adjacent to the outlet 404. The air outlet grille 102 is disposed on the purifying case 400. Thus, the air outlet grille 102 is more conveniently and firmly fixed.
During cooking, edible oil and food undergo a series of chemical reactions such as oxidation, cracking and polymerization at high temperature, a large amount of organic smoke is evaporated, and partial decomposition products are emitted into air in the form of oil mist to form oil smoke. The oil fume includes both edible oil and its heated decomposed or cracked product and the physical and chemical reaction of protein, high molecular compound and various seasonings in food, and is one kind of matter containing gas, liquid and solid. Generally, the Particulate Matter emission (Particulate Matter Emissions) consisting of liquid and solid in the soot emission is abbreviated as PME, and the Volatile Organic Compounds emission (Volatile Organic Compounds Emissions) is abbreviated as VOCs. The oil smoke is composed of the above two substances, wherein the VOCs can be regarded as the smell of the oil smoke.
In the following, taking "the ion generating assembly 200 is disposed at the air inlet 12 a" as an example, two embodiments are specifically described, which are embodiment 1 shown in fig. 5 to 9 and embodiment 2 shown in fig. 10 to 13, respectively.
As shown in fig. 5-9, the ion generating module 220 includes a plasma generating structure 220 a. When the plasma generating structure 220a operates, the air containing the soot is ionized to generate low-temperature plasma. The plasma generating structure 220a can ionize and degrade the oil smoke, especially the VOCs in the oil smoke, in the process of ionizing the air containing the oil smoke, and the low-temperature plasma generated by ionization can act on the oil smoke in the air, so that the oil smoke, especially the VOCs in the oil smoke, is ionized and degraded. Therefore, the plasma generating structure 220a ionizes and degrades the oil smoke, especially ionizes and degrades the VOCs, and has the characteristics of high efficiency and greenness. And for the mode that adopts the material of similar active carbon to adsorb and get rid of VOCs, adopt plasma to take place structure 220a ionization degradation VOCs, not only can be high-efficient, green degradation VOCs, still be difficult to appear because of the too big concentration of the VOCs of the too big, in the air of steam content in the air, and lead to plasma to take place structure 220a and lose the function of degradation oil smoke. Therefore, the plasma generating structure 220a also has the advantages of long service life and good removing effect.
In the present embodiment, as shown in fig. 5-9, the plasma generation structure 220a includes a first electrode unit 222a and a second electrode unit 224a through which the gas flow can pass. The first electrode unit 222a and the second electrode unit 224a are arranged at intervals in a direction from the air inlet 12a to the air outlet 12b, and are located between the air inlet plate 212a and the air outlet plate 212 b. First electrode unit 222a and second electrode unit 224a cooperate to ionize a gas located between first electrode unit 222a and second electrode unit 224 a. When the air purifying device 14 is in operation, airflow in the kitchen enters the purifying air duct through the air inlet 12a, passes through the first electrode unit 222a and the second electrode unit 224a, and is then discharged from the air outlet 12b into the kitchen. The first electrode unit 222a and the second electrode unit 224a after being electrified ionize the gas between the first electrode unit 222a and the second electrode unit 224a, so that the oil smoke in the air is efficiently and environmentally degraded, and the air is purified. And since the plasma generating structure 220a is provided at the air inlet 12 a. Therefore, once the air with the oil smoke enters the purification air channel, ionization of the plasma generation structure 220a can be obtained, efficient and green degradation of the oil smoke in the air is completed, the air is purified, and therefore the probability that the air with the oil smoke pollutes other devices in the purification air channel is reduced.
In the present embodiment, the first electrode unit 222a and the second electrode unit 224a may operate under the condition of an ac power or a dc power, wherein the operating voltage may be 0.5kv to 20kv, and particularly, the frequency is greater than 50Hz when the first electrode unit and the second electrode unit are operated under the condition of the ac power.
In the present embodiment, the first electrode unit 222a includes a first electrode 2222a and a first dielectric 2224a disposed on the first electrode 2222 a. The addition of the first dielectric 2224a may enhance the effect of the discharge between the first electrode unit 222a and the second electrode unit 224 a. In this embodiment, the material of the first electrode 2222a includes at least one of stainless steel, iron, aluminum, and copper. The material of the first dielectric 2224a includes at least one of quartz glass, bakelite, and ceramic.
In the present embodiment, the first electrode 2222a and the first dielectric 2224a are both in the shape of a stripe. The first dielectric 2224a is a hollow structure with two open ends, and the first electrode 2222a is inserted into the first dielectric 2224 a. That is, first dielectric 2224a completely encapsulates first electrode 2222 a. In this way, not only the discharge effect between the first electrode unit 222a and the second electrode unit 224a can be enhanced, but also the first electrode 2222a can be better protected.
In this embodiment, the first electrodes 2222a and the first dielectrics 2224a are multiple and are arranged in a one-to-one correspondence. The plurality of first dielectrics 2224a are arranged in parallel at intervals. In this way, the flow of gas through the first electrode unit 222a is facilitated. It is understood that when the first dielectric 2224a is omitted, the first electrode unit 222a may include a plurality of first electrodes 2222a, and the plurality of first electrodes 2222a are arranged in parallel at intervals.
In other embodiments, when the first dielectric 2224a is omitted, the second electrode unit 224a may include a second electrode and a second dielectric disposed on the second electrode. In this manner, the discharge effect between the first electrode unit 222a and the second electrode unit 224a can also be enhanced. The second electrode is made of at least one of stainless steel, iron, aluminum and copper. The material of the second dielectric comprises at least one of quartz glass, bakelite and ceramic.
In this embodiment, the second electrode and the second dielectric are both in a grid shape. The second electrode and the second dielectric are stacked, and the second dielectric is disposed on the first electrode unit 222a with respect to the second electrode. As such, not only can the discharge effect between the first electrode unit 222a and the second electrode unit be enhanced, but also the gas flow through the second electrode unit 224a is facilitated.
In other embodiments, the first electrode 2222a and the second electrode may be simultaneously in a stripe shape or a grid shape.
In the present embodiment, in the direction from the air inlet 12a to the air outlet 12b, the first electrode unit 222a is located upstream of the second electrode unit 224a, that is, the first electrode unit 222a is closer to the air inlet 12a than the second electrode unit 224 a. The passage area of the first electrode unit 222a for the gas flow therethrough is larger than the passage area of the second electrode unit 224a for the gas flow therethrough. So, the air current is changeed relatively and is got into the purification wind channel through air intake 12a, and the air current is difficult relatively to discharge from the purification wind channel through air outlet 12b simultaneously, after the air current got into the purification wind channel, can be so that the air current is by abundant ionization back, and the rethread air outlet 12b is discharged.
In this embodiment, the air purification apparatus 14 further includes an auxiliary degradation module 500 through which the air flow can pass, and the auxiliary degradation module 500 can adsorb and degrade the oil smoke and/or catalyze and degrade the oil smoke. The auxiliary degradation module 500 is disposed between the first electrode unit 222a and the second electrode unit 224 a. In a direction from the air inlet 12a to the air outlet 12b, the first electrode unit 222a is disposed at a distance from the auxiliary degradation module 500 and/or the second electrode unit 224a is disposed at a distance from the auxiliary degradation module 500.
The first electrode unit 222a and the auxiliary degradation module 500 are arranged at an interval to form a discharge gap between the first electrode unit 222a and the auxiliary degradation module 500, and the second electrode unit 224a and the auxiliary degradation module 500 are arranged at an interval to form a discharge gap between the second electrode unit 224a and the auxiliary degradation module 500. Therefore, after the auxiliary degradation module 500 is added between the first electrode unit 222a and the second electrode unit 224a, the ion generation module 220 can still ionize and degrade the soot.
The first electrode unit 222a and the second electrode unit 224a ionize and degrade the lampblack and assist the adsorption degradation and/or catalytic degradation of the degradation module 500 to degrade the lampblack more efficiently and purify the air.
In this embodiment, the auxiliary degradation module 500 includes a porous substrate. In this manner, the auxiliary degradation module 500 is capable of passing a gas stream.
In this embodiment, the substrate can adsorb and degrade the soot, and can allow the airflow to pass through. The material of the substrate can be activated carbon, molecular sieve, ceramic or metal (the porous metal substrate is a metal honeycomb).
In this embodiment, the auxiliary degradation module 500 further includes a catalyst disposed on the substrate, and the catalyst can catalyze and degrade the soot.
In some embodiments, the catalyst may be a metal oxide. The metal oxide comprises MnOx、CeOx、Co3O4、FeOx、CuxO, NiO and TiO2At least one of them. The substrate material can be activated carbon, the adsorption rate of the activated carbon to carbon tetrachloride (adsorption rate of CTC) is above 60%, and the particle size of the activated carbon is 20-100 meshes. Wherein, the mass percent of the catalyst is 0.01-20.0% (referring to the mass percent of the catalyst component in the total mass of the catalyst component and the substrate). At this time, the catalyst may be disposed on the substrate by impregnation.
In some embodiments, the catalyst is a room temperature formaldehyde catalyst powder supported on a substrate. The substrate may be made of metal oxide including MnOx and CeOx、Co3O4、FeOx、CuxO, NiO and TiO2At least one of; or the material of the substrate may include metal oxide and precious metal deposited on the surface of the substrate, wherein the precious metal includes at least one of Pt, Pd, Au, Ru, Rh and Ag. Wherein the particle size of the room temperature formaldehyde catalyst powder is 20-100 meshes. The mass percentage of the catalyst is 0.01-10%.0% (referring to the percentage of the catalyst component to the total mass of the catalyst component and the substrate). The effect of indoor air purification can be improved by depositing noble metal on the surface of the metal oxide.
In the present embodiment, in the direction from the air inlet 12a to the air outlet 12b, the first electrode unit 222a is located upstream of the second electrode unit 224a, that is, the first electrode unit 222a is closer to the air inlet 12a than the second electrode unit 224 a. In the direction from the air inlet 12a to the air outlet 12b, the auxiliary degradation module 500 is spaced from the first electrode unit 222a by 1 mm to 10 mm, and the auxiliary degradation module 500 is in contact with the second electrode unit 224 a. A discharge gap of 1 mm-10 mm is formed between the auxiliary degradation module 500 and the first electrode unit 222a, which is more favorable for ionizing the gas between the auxiliary degradation module 500 and the first electrode unit 222 a. The auxiliary degradation module 500 is in contact with the second electrode unit 224a, which is more beneficial to stably installing the auxiliary degradation module 500. In other embodiments, in the direction from the air inlet 12a to the air outlet 12b, the auxiliary degradation module 500 may be spaced from the first electrode unit 222a by 1 mm to 10 mm, and the auxiliary degradation module 500 may be spaced from the second electrode unit 224a by 1 mm to 10 mm.
In this embodiment, the auxiliary degradation module 500 is spaced from the first electrode unit 222a by 3 mm to 8 mm in a direction from the air inlet 12a to the air outlet 12 b.
In the present embodiment, the plasma generating structure 220a further includes a mounting frame 226 a. The auxiliary degradation module 500 is disposed in the mounting frame 226 a. The first electrode unit 222a and the second electrode unit 224a are respectively provided on both sides of the mounting frame 226a in the airflow direction. As such, it is very convenient to assemble the first electrode unit 222a, the second electrode unit 224a, and the auxiliary degradation module 500.
In this embodiment, the number of the auxiliary degradation modules 500 is plural. The mounting frame 226a has a plurality of spaced mounting locations 2262 a. The plurality of auxiliary degradation modules 500 are respectively disposed on the plurality of mounting positions 2262 a. The use of a plurality of relatively small auxiliary degradation modules 500 facilitates the fabrication of the ion generation module 220.
In this embodiment, the first electrode unit 222a further includes a mounting plate 2226 a. The plurality of first electrodes 2222a and the plurality of first dielectrics 2224a are provided on the mounting plate 2226 a. The first electrode unit 222a is detachably mounted to the mounting frame 226a via a mounting plate 2226 a. Thus, the assembly and disassembly are very convenient.
In the present embodiment, an annular stepped surface is provided in the mounting frame 226 a. The second electrode is positioned in the mounting frame and arranged on the step surface. Therefore, the second electrode is convenient to assemble and can be effectively protected. In other embodiments, the second electrode may also be external to the mounting frame.
In this embodiment, the air purification device 14 further includes a filter. The filter is located upstream of the ion generating module 220 (plasma generating structure 220a) in a direction from the inlet 12a to the outlet 12 b. Specifically, in the present embodiment, the filter element is located within the functional portion 212 of the housing 210 and is disposed on a side of the plasma generating structure 220a adjacent to the air inlet 12 a.
Wherein, filter and to carry out filtration purification to the air including the tobacco tar, particulate matter (liquid and solid) in the tobacco tar, also be the PME in the oil smoke, can be held back on filtering the piece to can avoid the particulate matter in the oil smoke to enter into in the ion generation module 220. The filter piece includes the HEPA filter screen, and the material of HEPA filter screen can include PP filter paper (polypropylene filter paper), glass fiber, PTFE filter paper (polytetrafluoroethylene filter paper), nanofiber, melt-blown polyester non-woven fabrics etc. has the dust holding capacity big, and the characteristics that filter fineness is high can exceed 90% to the filtration efficiency of oil smoke particulate matter to can process into required size and shape according to the model needs.
As shown in fig. 10-13, the ion generating module 220 includes a charging structure 220 b. The air purification device 14 further includes an electrostatic adsorption structure 600. The charged structure 220b and the electrostatic adsorption structure 600 are both disposed in the purification air duct, wherein the charged structure 220b is used for generating ions and charging the oil smoke, and the electrostatic adsorption structure 600 is used for adsorbing charged particles.
When the air purifying device 14 works, the air inlet 12a sucks the air containing oil smoke in the kitchen, the charged structure 220b charges the oil smoke in the air, particularly VOCs in the oil smoke are charged, the electrostatic adsorption structure 600 can efficiently adsorb the charged VOCs, the charged structure 220b and the electrostatic adsorption structure 600 work in a cooperative mode, the VOCs in the sucked air can be removed very conveniently, and then the purified air is discharged back to the kitchen through the air outlet 12 b. And for the mode that adopts similar active carbon's material to adsorb and get rid of VOCs, adopt the mode that the VOCs was adsorbed and get rid of to lotus structure 220b and the electric adsorption structure 600 lotus, not only can high-efficiently get rid of VOCs, still be difficult to appear because of the too big concentration of VOCs in the too big, the air purification device 14 that leads to losing the function of getting rid of the oil smoke because of the steam content in the air. In the in-service use process, only need regularly carry out the washing maintenance of electrostatic adsorption structure 600, and need not frequently carry out the change of electrostatic adsorption structure 600, promote user convenience.
In the present embodiment, the electrostatic adsorption structure 600 is disposed in the functional portion 212 and located between the charging structure 220b and the air-out plate 212 b. That is, in the present embodiment, the charging structure 220b and the electrostatic adsorption structure 600 are integrated together, and both are disposed adjacent to the air inlet 12a, and in a direction from the air inlet 12a to the air outlet 12b, the charging structure 220b is located upstream of the electrostatic adsorption structure 600. So, the air current once gets into the purification wind channel and can be handled by lotus electric structure 220b for the tobacco tar is electric, and the tobacco tar of lotus electric can be adsorbed by electrostatic adsorption structure 600 in purifying the wind channel, makes whole smoke oil removal process can be complete in air purification device 14, avoids the air in the electric oil smoke influence kitchen. Moreover, the charging structure 220b and the electrostatic adsorption structure 600 can be integrated into a module, which facilitates the modularization of the air purification apparatus 14. The electrostatic adsorption structure 600 is disassembled and assembled, and the charged structure 220b is disassembled and assembled.
In the present embodiment, as shown in fig. 10 and 11, the electrostatic adsorption structure 600 includes a collecting plate 610 and a repulsive plate 620 that are spaced apart, so that a collecting space is formed between the collecting plate 610 and the repulsive plate 620. The polarity of the collecting plate 610 is different from that of the repelling plate 620, and an electric field is formed in the collecting space, so that the charged soot is adsorbed onto the collecting plate 610 when the airflow passes through the collecting space.
In this embodiment, when the airflow passes through the collecting space, the negatively charged soot is adsorbed to the collecting plate 610.
In some embodiments, the collecting plate 610 is grounded and the repelling plate 620 is connected to a negative voltage, e.g., the repelling plate 620 is connected to a negative high voltage. Thus, the repelling electrode 12 can form a repelling effect with the negatively charged oil smoke, so that the negatively charged oil smoke is better adsorbed on the collecting electrode plate 610.
In some embodiments, the collecting plate 610 is positively charged and the repelling plate 620 is grounded. Thus, the repelling electrode 12 can form a repelling effect with the negatively charged oil smoke, so that the negatively charged oil smoke is better adsorbed on the collecting electrode plate 610.
In some embodiments, the collecting plate 610 is positively charged and the repelling plate 620 is negatively charged. Thus, the repelling electrode 12 can form a repelling effect with the negatively charged oil smoke, so that the negatively charged oil smoke is better adsorbed on the collecting electrode plate 610.
In this embodiment, each of the collecting plates 610 and the repulsive plates 620 is a plurality of plates, the plurality of collecting plates 610 and the plurality of repulsive plates 620 are alternately arranged, and the adjacent collecting plates 610 and repulsive plates 620 are arranged at intervals. So, electrostatic absorption structure 600 has better adsorption effect to whole electrostatic absorption structure 600's security has been guaranteed.
In the present embodiment, the charging structure 220b includes a discharge tip 222b and a charging plate 224b that are spaced apart from each other, so that an ionization space is formed between the discharge tip 222b and the charging plate 224 b. The discharge tip 222b and the charge electrode plate 224b have different polarities and form an electric field in the ionization space, and when the airflow passes through the ionization space, the oil smoke is charged, and the electrical property of the charged oil smoke is the same as the electrical property of the discharge tip 222 b. In the present embodiment, the discharge tip 222b includes a corona wire.
In some embodiments, the discharge tip 222b is connected to a high positive voltage, and the charging plate 224b is connected to ground, so that the charged soot is charged to a positive polarity.
In some embodiments, the discharge tip 222b is connected to a negative high voltage, and the charging electrode plate 224b is connected to ground, so that the charged soot is negatively charged.
In some embodiments, the discharge tip 222b is connected to a positive high voltage, and the charge plate 224b is connected to a negative voltage, at which time the charged soot is charged to a positive voltage.
In some embodiments, the discharge tip 222b is connected to a negative high voltage, and the charge plate 224b is connected to a positive voltage, at which time the charged soot is charged negatively.
In the present embodiment, the charging structure 220b is located upstream of the electrostatic adsorption structure 600 in the direction from the air inlet 12a to the air outlet 12 b. The charged electrode plates 224b are multiple, and the multiple charged electrode plates 224b are arranged at intervals along the arrangement direction of the multiple collecting electrode plates 610.
The discharge tips 222b are plural. A discharge tip 222b is disposed between two adjacent charging plates 224 b. Two adjacent charge plates 224b and the discharge tip 222b located between the two adjacent charge plates 224b constitute one charge unit 202 b. The charging structure 220b includes at least one charging unit 202 b.
In this embodiment, the two charging plates 224b in one charging unit 202b are respectively disposed corresponding to the two collecting plates 610, and at least one collecting plate 610 is further disposed between the two charging plates 224b in one charging unit 202 b.
In some embodiments, there is an odd number of collecting plates 610 between two charging plates 224b in one charging unit 202b, and the discharge tip 222b in one charging unit 202b is located in the middle of the odd number of collecting plates 610. In this embodiment, 1 collecting plate 610 is further provided between two charging plates 224b in one charging unit 202b, and in this case, two charging plates 224b and one discharge tip 222b in one charging unit 202b are respectively disposed corresponding to one collecting plate 610.
In some embodiments, there is an even number of collecting plates 610 between two charging plates 224b in one charging unit 202b, and the discharge tip 222b in one charging unit 202b is located in the middle of the even number of collecting plates 610.
In this embodiment, the charging electrode plate 224b and the corresponding collecting electrode plate 610 in one charging unit 202b are integrally formed, that is, the charging electrode plate 224b and the collecting electrode plate 610 are two ends of one electrode plate, wherein in the direction from the air inlet 12a to the air outlet 12b, the charging electrode plate 224b is located at the front end, and the collecting electrode plate 610 is located at the rear end.
For better air purification. In this embodiment, the air cleaning device 14 further includes the above-mentioned filter (not shown). In the direction from the air inlet 12a to the air outlet 12b, the filter is located downstream of the electrostatic adsorption structure 600. Thus, when the air purification device 14 is in operation, the electrostatic adsorption structure 600 adsorbs the charged VOCs, and then the filter element can filter and purify the airflow passing through the electrostatic adsorption structure to remove the tobacco tar again, thereby further purifying the airflow.
The following description will specifically refer to the ion generating assembly 200 disposed at the air outlet 12 b.
As shown in fig. 14, the ion generating assembly 200 is located at the outlet 404. Therefore, after the ion generating assembly 200 generates ions, the ions can be discharged back to the kitchen space through the air outlet 12b, and the loss caused by long-time propagation of the ions generated by the ion generating assembly 200 in the purification air duct is avoided.
In the present embodiment, the ion generating assembly 200 is exposed from the air outlet 404. The ion generating assembly 200 is detachably connected to the airflow channel of the purifying housing 400 through the air outlet 404. Thus, when the ion generating assembly 200 is replaced by parts or the anion generator is maintained, the purification shell 400 is not required to be disassembled and assembled, which is more convenient.
In this embodiment, the inner wall of the airflow channel of the purifying housing 400 is provided with a mounting groove 406 extending toward the air outlet 404, and the ion generating assembly 200 is disposed in the mounting groove 406. It is understood that the mounting slot 406 extends toward the air outlet 404 to provide a guiding mounting function, which facilitates the drawability of the ionizer relative to the air outlet 404.
In this embodiment, the air outlet 12b is located on the front surface of the decoration cover 122, the air outlet 404 is located on the front surface of the purification shell 400, and the area of the air outlet 404 is larger than that of the air outlet 12 b. The ion generating assembly 200 is exposed from the air outlet 404, and the ion generating assembly 200 is located above the air outlet 12 b. So, not only be convenient for dismouting ion generation subassembly 200, ion generation subassembly 200 can be handled the air current in purifying channel moreover, for handle the air current in air outlet 12b department, handle the air current in purifying channel, more do benefit to and produce the ion, after the ion formation simultaneously, can arrange back to the kitchen space in through air outlet 12b, avoid the ion to propagate and lose in purifying the wind channel for a long time.
In the present embodiment, the ion generating assembly 200 includes a negative ion generator or a positive ion generator.
In some embodiments, the air purification apparatus 14 further includes the filter 700 described above, and the filter 700 is disposed adjacent to the air inlet 12 a. So, after negative ion (positive and negative ion) that negative ion generator (positive and negative ion generator) produced got into kitchen space, can be so that the oil smoke particle is electrified, electrified oil smoke particle can be more quick adsorbed on air purification device 14's filtration piece 700 to can adsorb the oil smoke in the air current and purify. Specifically, in the present embodiment, the air purification apparatus 14 further includes the housing 210, and the filter 700 is disposed in the housing 210.
In some embodiments, the air purification apparatus 14 further includes the electrostatic adsorption structure 600, and the electrostatic adsorption structure 600 is disposed adjacent to the air inlet 12 a. So, after negative ion (positive and negative ion) that negative ion generator (positive and negative ion generator) produced got into the kitchen space, can be so that the oil smoke particle is electrified, electrified oil smoke particle can be more quick adsorbed on air purification device 14's electrostatic adsorption structure 600 to can adsorb the oil smoke in the air current and purify. Specifically, in the present embodiment, the air purification apparatus 14 further includes the housing 210, and the electrostatic adsorption structure 600 is disposed in the housing 210.
The following description specifically describes an example in which the ion generating assembly 200 can be disposed at any position of the clean air duct.
As shown in fig. 3, the range hood 10 further includes a controller, the controller is electrically connected to the purification fan 300, and the controller is configured to control the rotation direction of the purification fan 300 to change, so as to drive the airflow direction in the purification air duct to switch between the air inlet 12a and the air outlet 12 b. So, when purification fan 300 runs in reverse, the air current flow direction among the range hood 10 is switched to air outlet 12b to air inlet 12a direction by original air intake 12a to air outlet 12b direction, can take place the ion that subassembly 200 produced through the ion like this, and carry out germicidal treatment to purifying the wind channel through the mobile effect of air current, so avoided purifying the wind channel and be in the problem that the heavier operational environment of oil smoke causes its inside bacterium of breeding easily for a long time, the bacterium content of the air after so purifying the wind channel purifies still less, thereby more be favorable to the health. The ion generating assembly 200 includes at least one of a negative ion generator, a positive ion generator, and a plasma generator. In the present embodiment, the ion generating assembly 200 is disposed adjacent to the air outlet 12 b.
In other embodiments, as shown in fig. 15 and 16, the housing 12 includes a decorative cover 122, a smoke collection cover 124, and a purge shell 400. The smoke collection cover 124 is provided below the decorative cover 122. The purification case 400 is provided on the decorative cover 122 and/or the smoke collecting cover 124. The range hood duct is located within the trim cover 122. The purge air path (i.e., the air flow path in the embodiment of fig. 1-3) is located within the purge housing 400. The inlet 12a (i.e., the outlet 12b in the embodiment shown in fig. 1 to 3) and the outlet 12b (i.e., the outlet opening 404 in the embodiment shown in fig. 1 to 3) are both located on the purifying housing 400.
The air purification device 14 is arranged outside the whole body formed by the decoration cover 122 and the smoke collecting cover 124, so that when parts of the air purification device 14 are replaced or the air purification device 14 is maintained, the whole body formed by the decoration cover 122 and the smoke collecting cover 124 does not need to be disassembled and assembled, and the air purification device is more convenient. In addition, the whole body formed by the decoration cover 122 and the smoke collecting cover 124 and the air purification device 14 can be assembled independently in different modules, and then the two modules are assembled together, which is beneficial to the modular assembly of the range hood 10 and can improve the assembly efficiency of the range hood 10.
It should be noted that the range hood of the embodiment shown in fig. 15 and 16 is substantially the same as the range hood of the embodiment shown in fig. 1 to 9, and the same parts are not described again, but the difference is that the air cleaning device 14 of the range hood of the embodiment shown in fig. 15 and 16 is disposed outside the whole body formed by the decorative cover 122 and the smoke collecting cover 124, and the air cleaning device 14 of the range hood of the embodiment shown in fig. 1 to 9 is disposed in the decorative cover 122. While the front, top and side surfaces of the purge housing 400 in the embodiment of fig. 15 and 16 correspond to the front, top and side surfaces, respectively, of the trim cover 122 in the embodiment of fig. 1-9.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (30)

1. A range hood, comprising:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with an oil fume suction air duct and a purification air duct which are mutually independent, the oil fume suction air duct is used for communicating the indoor space and the outdoor space, the shell is provided with an air inlet and an air outlet which are communicated with the purification air duct, and the air inlet and the air outlet are respectively used for communicating the indoor space; and
air purification device, including ion generation subassembly and purification fan, the ion generation subassembly is located in the purification wind channel, purification fan is used for making the air current certainly the air intake via the ion generation subassembly flow direction the air outlet.
2. The range hood of claim 1 wherein the ion generating assembly is disposed at the air inlet.
3. The range hood of claim 2, wherein the ion generating assembly is exposed from the air inlet, and the ion generating assembly is detachably connected to the purification air duct through the air inlet.
4. The range hood according to claim 3, wherein the air purification device further comprises a purification shell, the purification shell is disposed in the housing, an airflow channel is disposed in the purification shell, the purification shell is provided with an air inlet and an air outlet which are communicated with the airflow channel, the air inlet and the air outlet are respectively communicated with the air inlet and the air outlet, the purification air channel comprises the airflow channel, and the ion generation assembly and the purification fan are both disposed in the airflow channel;
the ion generation assembly is arranged at the air inlet and the air inlet, and the ion generation assembly is detachably connected with the airflow channel through the air inlet and the air inlet.
5. The range hood according to claim 3 wherein the ion generating assembly comprises a housing and an ion generating module, the housing is disposed at the air inlet, the housing comprises a functional portion and a detachable portion connected to each other, the functional portion comprises an air inlet plate and an air outlet plate in a direction from the air inlet to the air outlet, the ion generating module is disposed in the functional portion and between the air inlet plate and the air outlet plate, the air inlet plate and the detachable portion are exposed from the air inlet, and a fastening position is disposed on an exposed side of the detachable portion.
6. The range hood of claim 5 wherein the functional portion is located above the removable portion; and/or
In the direction from the air inlet to the air outlet, the thickness of the functional part is larger than that of the dismounting part, and the exposed side of the functional part is flush with that of the dismounting part.
7. The range hood of claim 2, wherein the ion generating assembly comprises a housing and an ion generating module, the housing is disposed at the air inlet, the housing comprises a functional portion, the functional portion comprises an air inlet plate and an air outlet plate in a direction from the air inlet to the air outlet, and the ion generating module is disposed in the functional portion and between the air inlet plate and the air outlet plate.
8. The range hood of claim 7 wherein the air intake plate is positioned above the air outlet; and/or
The air inlet plate is a grid plate.
9. The range hood of claim 7 wherein the air inlet panel comprises a first air inlet portion and a second air inlet portion disposed at an included angle.
10. The range hood of claim 9, wherein at least a portion of the air inlet is located on a side of the housing, at least a portion of the air inlet is located on a front of the housing, the first air inlet portion is disposed corresponding to a portion of the air inlet located on the side of the housing, and the second air inlet portion is disposed corresponding to a portion of the air inlet located on the front of the housing.
11. The range hood of claim 7, wherein the functional part further comprises a connecting plate connecting the air inlet plate and the air outlet plate, the connecting plate is provided with a disassembly and assembly port, and the ion generation module is detachably connected with the functional part through the disassembly and assembly port.
12. The range hood of claim 7, wherein the ion generating module comprises a plasma generating structure, the plasma generating structure comprises a first electrode unit and a second electrode unit through which air can pass, the first electrode unit and the second electrode unit are arranged at intervals in a direction from the air inlet to the air outlet and are located between the air inlet plate and the air outlet plate, and the first electrode unit and the second electrode unit are matched to ionize gas located between the first electrode unit and the second electrode unit.
13. The range hood according to claim 12 wherein in a direction from the air inlet to the air outlet, the first electrode unit is located at an upstream of the second electrode unit, the first electrode unit includes a plurality of first electrodes arranged at intervals, the second electrode unit includes a second electrode, and the second electrode is in a grid shape.
14. The range hood of claim 13, wherein the first electrode unit further comprises a plurality of first dielectrics arranged at intervals, the first dielectrics are hollow structures with openings at two ends, and the plurality of first electrodes are respectively inserted into the plurality of first dielectrics;
or, the second electrode unit further includes a second dielectric in a grid shape, the second dielectric and the second electrode are stacked, and the second dielectric is closer to the first electrode unit than the second electrode.
15. The range hood of claim 12, wherein the air purification device further comprises an auxiliary degradation module for allowing airflow to pass through, the auxiliary degradation module is disposed between the first electrode unit and the second electrode unit, the first electrode unit and the auxiliary degradation module are disposed at an interval and/or the second electrode unit and the auxiliary degradation module are disposed at an interval in a direction from the air inlet to the air outlet, and the auxiliary degradation module is capable of adsorbing degraded soot and/or catalytically degrading soot.
16. The range hood of claim 15, wherein the auxiliary degradation module comprises a porous substrate;
the substrate can adsorb and degrade oil smoke; and/or
The auxiliary degradation module further comprises a catalyst disposed on the substrate.
17. The range hood of claim 15, wherein the first electrode unit is located upstream of the second electrode unit in a direction from the air inlet to the air outlet, the auxiliary degradation module is spaced from the first electrode unit by 1 mm to 10 mm, and the auxiliary degradation module is in contact with the second electrode unit.
18. The range hood of claim 15, wherein the ion generating assembly further comprises a mounting frame, and the first electrode unit and the second electrode unit are respectively disposed on two sides of the mounting frame in the airflow direction;
the auxiliary degradation module is a plurality of, the installing frame has a plurality of installation positions that separate each other, and is a plurality of the auxiliary degradation module is located a plurality of respectively on the installation position.
19. The range hood according to claim 7, wherein the ion generation module includes a charging structure, the air purification device further includes an electrostatic adsorption structure, the electrostatic adsorption structure is disposed in the functional portion and located between the charging structure and the air outlet plate, the charging structure is configured to generate ions and charge the oil smoke, and the electrostatic adsorption structure is configured to adsorb charged particles.
20. The range hood of claim 19, wherein the electrostatic adsorption structure comprises a plurality of collecting plates and a plurality of repelling plates, wherein the collecting plates and the repelling plates are alternately arranged, and adjacent collecting plates and repelling plates are arranged at intervals;
the charging structure comprises a plurality of discharging tips and a plurality of charging polar plates which are arranged at intervals, the plurality of charging polar plates are arranged at intervals along the arrangement direction of the plurality of collecting polar plates, one discharging tip is arranged between every two adjacent charging polar plates, and the two adjacent charging polar plates and the discharging tip positioned between the two adjacent charging polar plates form a charging unit;
the two charged polar plates in the charged unit are respectively arranged corresponding to the two collecting polar plates, and at least one collecting polar plate is arranged between the two charged polar plates in the charged unit, wherein the charged polar plates in the charged unit and the collecting polar plates corresponding to the charged polar plates are integrally formed.
21. The range hood of claim 1 wherein the ion generating assembly is disposed at the air outlet.
22. The range hood of claim 21, wherein the air purification device further comprises a purification shell, the purification shell is disposed in the housing, an airflow channel is disposed in the purification shell, the purification shell is provided with an air inlet and an air outlet which are communicated with the airflow channel, the air inlet and the air outlet are respectively communicated with the air inlet and the air outlet, the purification air channel comprises the airflow channel, and the ion generation assembly and the purification fan are both disposed in the airflow channel;
wherein, the ion generating assembly is positioned at the air outlet.
23. The range hood of claim 22, wherein the ion generating assembly is exposed from the air outlet, and the ion generating assembly is detachably connected to the air flow channel of the purifying housing through the air outlet.
24. The range hood of claim 23, wherein the inner wall of the airflow channel of the purification shell is provided with an installation groove extending towards the air outlet, and the ion generating assembly is arranged in the installation groove.
25. The range hood according to claim 24, wherein the air outlet is located at a front surface of the housing, the air outlet is located at a front surface of the purifying housing, and an area of the air outlet is larger than an area of the air outlet, wherein the ion generating assembly is exposed from the air outlet and is located above the air outlet.
26. The range hood of any one of claims 21-25, wherein the ion generating assembly comprises a negative ion generator or a positive and negative ion generator;
the air purification device 14 further comprises an electrostatic adsorption structure or a filtering piece for adsorbing charged particles, wherein the electrostatic adsorption structure or the filtering piece is arranged in the purification air channel and is positioned at the air inlet.
27. The range hood of claim 26 wherein the air cleaning device 14 further comprises a housing, the electrostatic adsorption structure or the filter being disposed within the housing;
the shell is arranged in the purification air channel and is positioned at the air inlet, the shell is exposed from the air inlet, and the shell passes through the air inlet and the purification air channel which are detachably connected.
28. The range hood of claim 1 wherein the ion generating assembly comprises at least one of a negative ion generator, a positive and negative ion generator, and a plasma generator.
29. The range hood of claim 1 or 28, wherein the air purification device further comprises a controller, the controller is electrically connected to the purification fan, and the controller is configured to control a change of direction of the purification fan so as to drive the airflow in the purification air duct to switch between the air inlet and the air outlet.
30. The range hood of claim 29 wherein the ion generating assembly is disposed at the air outlet.
CN202120529875.6U 2021-03-11 2021-03-11 Smoke exhaust ventilator Active CN216716320U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120529875.6U CN216716320U (en) 2021-03-11 2021-03-11 Smoke exhaust ventilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120529875.6U CN216716320U (en) 2021-03-11 2021-03-11 Smoke exhaust ventilator

Publications (1)

Publication Number Publication Date
CN216716320U true CN216716320U (en) 2022-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120529875.6U Active CN216716320U (en) 2021-03-11 2021-03-11 Smoke exhaust ventilator

Country Status (1)

Country Link
CN (1) CN216716320U (en)

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