CN107339724B

CN107339724B - Electrostatic cooking fume remover

Info

Publication number: CN107339724B
Application number: CN201710149939.8A
Authority: CN
Inventors: 胡泽元; 孙佳琪; 李晓强; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-03-14
Filing date: 2017-03-14
Publication date: 2022-10-21
Anticipated expiration: 2037-03-14
Also published as: CN107339724A

Abstract

The utility model provides an electrostatic oil removal type range hood, includes shell (1), locates collection petticoat pipe (2) of shell (1) lower port and locate fan (3) in the shell, the preceding port of aforementioned collection petticoat pipe (2) is equipped with cowling panel (4) that are used for leading the cigarette, has the clearance that the fuel feeding cigarette got into between the preceding terminal surface of this cowling panel (4) and collection petticoat pipe (2), its characterized in that be equipped with anion generator (5) and anion channel (6) in collection petticoat pipe (2), emission end (51) of aforementioned anion generator (5) are located aforementioned anion channel (6), and cowling panel (4) are stretched out in the export of aforementioned anion channel (6), are equipped with positive high voltage generator (7) of direct current in aforementioned shell (1), and the positive and the cowling panel (4) electricity of output of this positive high voltage generator (7) of direct current is connected. The rectifying plate plays the roles of diversion, oil collection and electrode plate and integrates multiple functions. An electrode plate is not needed to be additionally arranged in the range hood, so that the integral structure is more compact, and the range hood is convenient to mount, dismount, clean and maintain.

Description

Electrostatic cooking fume remover

Technical Field

The invention relates to a range hood, and belongs to the technical field of kitchen oil smoke air purification.

Background

The oil smoke generated during the cooking process and discharged through the range hood is a pollution source for residents and air environments, regardless of commercial kitchens or household kitchens. With the improvement of environmental awareness of people, enterprises producing and manufacturing range hoods also pay more and more attention to the capability of the range hoods for treating oil smoke, and various technical means are adopted to reduce pollutants in the discharged oil smoke.

At present, the method for treating oil smoke by a range hood generally comprises the following steps: inertial collision interception, centrifugal (or rotary) separation, filtration, electrostatic methods, the first three of which are common. Although the electrostatic method works well, its use is more common in commercial kitchens and less common in home kitchens. The main reason is that the traditional high-voltage electrostatic oil removal device has a large volume, so that the device is not practical to be directly applied to a range hood of a household kitchen.

The oil removing effect is ensured, and simultaneously, the volume of the high-voltage electrostatic oil removing device is reduced and is directly embedded into the range hood to form an integrated structural design, and similar devices are available in the prior art. Reference may be made to chinese utility model patent No. ZL201420291099.0, a self-cleaning range hood based on electrostatic adsorption (publication No. CN 203980380U); reference may also be made to the chinese utility model patent No. ZL201520555616.5, a range hood (granted publication No. CN 204987149U).

The pollutants intercepted by the traditional high-voltage electrostatic oil removal device are accumulated on the pole plates in the channel, and if the pole plates and the high-voltage discharge corona wire are not cleaned regularly, the oil removal effect of the device is greatly reduced, and even danger can be caused. The problem is that the structure of the high-voltage electrostatic oil removal device is complex, the cleaning and maintenance are very troublesome in the using process, and the installation and the disassembly are also very inconvenient.

In addition, the port of the fume collecting hood of the existing range hood is often provided with a rectifying plate for diversion, the lower end of the inner side of the fume collecting hood is provided with an oil cup, and the oil cup can receive oil dripped from the rectifying plate. The first rectifying plate can enlarge the oil fume adsorption area, and meanwhile, oil is accumulated and dripped into the oil pump. The related documents can refer to a Chinese invention patent application with the application number of 201310639355.0, namely a range hood with a deflector (publication number CN 103697513A); the invention relates to a Chinese invention patent application with the application number of 201410451905.0, in particular to an oil filtering type range hood (publication number CN 104266243A).

Disclosure of Invention

The present invention provides an electrostatic oil-removing range hood combining a flow guiding rectifying plate with electrostatic oil removal.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an electrostatic oil-removing range hood, includes the shell, locates the collection petticoat pipe of shell lower port and locate the fan in the shell, the preceding terminal surface of aforementioned collection petticoat pipe is equipped with the cowling panel, its characterized in that be equipped with anion generator and anion channel in the collection petticoat pipe, the emission end of aforementioned anion generator is located aforementioned anion channel, and the cowling panel is stretched out in the export of aforementioned anion channel, is equipped with the positive high voltage generator of direct current in the aforementioned shell, and the positive and cowling panel electricity of output of this positive high voltage generator of direct current is connected.

The inlet of the negative ion channel extends out of the back surface of the smoke collecting hood. Therefore, air polluted by oil smoke cannot enter the negative ion channel, the air is fresh and clean, the emission end of the negative ion generator can be kept clean even if being used for a long time, and frequent cleaning treatment is not needed.

The rectifying plate is provided with a connecting hole, the connecting hole is connected with the negative ion channel in a matched and clamped mode, a clamping block connected with the direct current positive high-voltage generator is arranged on the inner side of the smoke collecting hood, the clamping block is provided with an inserting slot for the rectifying plate to be inserted, and therefore the output positive electrode of the direct current positive high-voltage generator is electrically connected with the rectifying plate through the clamping block. Therefore, the rectifying plate can be assembled through the negative ion channel and the clamping block without an additional connecting and assembling structure, and the whole structure is compact and reasonable.

Furthermore, the connecting hole is opened on the central line of the fume collecting hood in the length direction, the two clamping blocks are respectively arranged at two ends of the fume collecting hood, and at least one clamping block is connected with the direct-current positive high-voltage generator.

Furthermore, the inlet and the outlet of the negative ion channel are respectively provided with a mask inlet cover and a mask outlet cover.

Compared with the prior art, the invention has the advantages that: in the cooking process, high-concentration negative ions generated by the negative ion generator enable oil mist particles in rising oil smoke to be negatively charged, and the negatively charged oil mist particles migrate to the positively charged rectifying plate under the action of an electric field force and are then adsorbed on the rectifying plate, so that the purpose of removing oil is achieved. Meanwhile, when the negatively charged oil mist particles migrate to the rectifying plate under the action of the electric field force, the rising of the oil fume is substantially accelerated in a space range, the non-directional diffusion of the oil fume is reduced, and the oil fume is more favorably collected by the range hood.

The rectifying plate plays the roles of guiding flow, collecting oil and an electrode plate, and integrates multiple functions. An electrode plate is not needed to be additionally arranged in the range hood, so that the integral structure is more compact, and the range hood is convenient to mount, dismount, clean and maintain. The range hood can effectively reduce the pollutants in the oil smoke discharged outside the range hood and improve the oil smoke suction effect of the range hood to a certain extent.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is a schematic view of another structure of the embodiment.

Fig. 3 is a partially exploded view of the embodiment.

Fig. 4 is an enlarged view of the combination of the anion generator and the anion passage in fig. 3.

Detailed Description

The invention is described in further detail below with reference to the following examples of the drawings.

As shown in fig. 1, fig. 2, and fig. 3, the electrostatic oil removing range hood according to the present embodiment includes a housing 1, a smoke collecting hood 2 disposed at a lower end of the housing 1, a fan 3 disposed in the housing, a negative ion generator 5, a negative ion channel 6, and a direct current positive high voltage generator 7, a flow rectification plate 4 for guiding smoke is disposed at a front end of the smoke collecting hood 2, and a gap for oil smoke to enter is formed between the flow rectification plate 4 and a front end surface of the smoke collecting hood 2. An oil cup (not shown in the figure) is arranged at the lower end of the inner side of the smoke collecting hood 2 and can receive oil dripped from the rectifying plate 4.

The fume collecting hood 2 is provided with a negative ion generator 5 and a negative ion channel 6, and as shown in fig. 4, an emission end 51 of the negative ion generator 5 is located in the negative ion channel 6, the negative ion generator 5 in this embodiment mainly can generate negative oxygen ions, and certainly, an air negative oxygen ion generator may be adopted.

The outlet of the negative ion channel 6 extends out of the rectifying plate 4, and the inlet of the negative ion channel 6 extends out of the back of the fume collecting hood 2. The inlet and outlet of the negative ion channel 6 are provided with an inlet cover 61 and an outlet cover 62, respectively.

The rectifying plate 4 is provided with a connecting hole 41, the connecting hole 41 is in adaptive clamping connection with the negative ion channel 6, a direct-current positive high-voltage generator 7 is arranged in the shell 1, a clamping block 8 connected with the direct-current positive high-voltage generator 7 is arranged on the inner side of the smoke collecting hood 2, the clamping block 8 is provided with a slot 81 for the rectifying plate 4 to insert, and positive charges generated by the direct-current positive high-voltage generator 7 are conveyed to the rectifying plate 4 through the clamping block 8.

The connecting holes 41 are arranged on the central line of the fume collecting hood 2 in the length direction, two clamping blocks 8 are arranged at two ends of the fume collecting hood 2 respectively, and one clamping block is connected with the direct current positive high voltage generator 7.

During cooking, the high concentration negative ions generated by the negative ion generator 5 negatively charges the oil mist particles in the rising oil smoke, and the negatively charged oil mist particles migrate to the positively charged rectifying plate 4 under the action of the electric field force and are then adsorbed on the rectifying plate 4, so that the purpose of removing oil is achieved. Meanwhile, when negatively charged oil mist particles migrate to the rectifying plate 4 under the action of an electric field force, the rising of oil fume is accelerated in a spatial range, the non-directional diffusion of the oil fume is reduced, and the oil fume is more favorably collected by the range hood. In addition, the wall attachment effect on the flow rectification plate 4 in the process that the oil smoke rises and diffuses into the smoke machine can be more favorable for the adsorption of the flow rectification plate 4 on oil mist particles, and the oil mist particles which are not adsorbed by the flow rectification plate 4 and have static electricity are easier to be intercepted by a filter screen or adsorbed on the inner wall of a channel compared with the conventional smoke machine after entering the smoke machine.

During the use of the range hood, a user can visually see the dirty condition of the rectifying plate 4. When the range hood needs to be cleaned, the power supply of the range hood is closed, the outlet cover 62 of the negative ion channel 6 is taken down, and the rectifying plate 4 is pulled away from the two clamping blocks 8. When the emission head 51 emits negative ions outwards, the high-speed ejected ion flow can drive air to enter from the inlet of the negative ion channel 6 and flow out from the outlet of the negative ion channel 6, so that no oil smoke enters the negative ion channel 6, and the emission head 51 can still keep clean after long-term use because the air entering from the air inlet of the emission channel is basically fresh air, and the emission performance of the emission head is not influenced.

Claims

1. The utility model provides an electrostatic oil removal type range hood, includes shell (1), locate shell (1) lower port collection petticoat pipe (2), locate fan (3) in the shell and locate the oil cup of the inboard lower extreme of collection petticoat pipe, the front end mouth of aforementioned collection petticoat pipe (2) is equipped with cowling panel (4) that are used for leading the cigarette, has the clearance that the fuel feeding cigarette got into between the preceding terminal surface of this cowling panel (4) and collection petticoat pipe (2), the oil cup can accept the fluid that drips from the cowling panel, a serial communication port, be equipped with anion generator (5) and anion channel (6) in collection petticoat pipe (2), emission end (51) of aforementioned anion generator (5) are located aforementioned anion channel (6), cowling panel (4) are stretched out in the export of aforementioned anion channel (6), be equipped with positive high voltage generator (7) of direct current in aforementioned shell (1), the positive voltage generator (7) of output of this positive voltage generator (7) are connected with cowling panel (4) electricity.

2. An electrostatic range hood according to claim 1 wherein the inlet of the negative ion channel (6) extends beyond the back of the hood (2).

3. The electrostatic oil removing range hood according to claim 1, wherein the cowling panel (4) is provided with a connecting hole (41), the connecting hole (41) is adapted and clamped with the negative ion channel (6), a clamping block (8) connected with the direct current positive high voltage generator (7) is arranged inside the exhaust fume collecting hood (2), the clamping block (8) is provided with a slot (81) for inserting the cowling panel (4), so that the output positive electrode of the direct current positive high voltage generator (7) is electrically connected with the cowling panel (4) through the clamping block (8).

4. An electrostatic oil-removing range hood according to claim 3, characterized in that the connecting hole (41) is arranged on the center line of the length direction of the fume collecting hood (2), the two blocks (8) are respectively arranged at the two ends of the fume collecting hood (2), and at least one of the blocks is connected with the direct current positive high voltage generator (7).

5. An electrostatic range hood according to claim 1, wherein the inlet and outlet of the negative ion channel (6) are provided with an inlet hood (61) and an outlet hood (62), respectively.