Oil fume ionization device and range hood

Abstract

The utility model discloses an oil fume ionization device and range hood, oil fume ionization device operation, oil fume can flow through electrode plate group from the flow gap, and oil fume flows through the flow gap and first passes through ionization area, and ionization area can produce corona discharge, and a large amount of charged particle is produced, and charged particle can adhere to the surface of the liquid drop or solid particle in oil fume, makes it take on electric charge, and the oil fume particle of taking on electric charge subsequently enters the flow gap, and under the action of electric field force, the charged particle is adsorbed to the positive plate or negative plate of opposite polarity, thereby separating from the airflow. When needing to clean the positive plate and negative plate adhered with oil fume particle, can disconnect the power of electrode plate group, to remove the electric field force that will adsorb oil fume particle on electrode plate group, drive electrode plate group rotation again, and flush electrode plate group with water flow, because electrode plate group is rotating, so each position of electrode plate group can rotate to the position of effective contact with water flow, thereby can improve the flush convenience of electrode plate group.

Description

Technical Field

[0001] This utility model relates to the field of oil fume treatment technology, and in particular to an oil fume ionization device and an oil fume extractor. Background Technology

[0002] In related technologies, range hoods use an oil fume ionization device to separate oil fume particles, causing the particles to become charged and adhere to a dust collection plate, thus achieving the effect of filtering oil fume particles. However, the dust collection plate is usually fixedly installed in the oil fume ionization device, and it is difficult to clean after accumulating a large amount of oil fume particles, affecting the subsequent dust collection effect. Utility Model Content

[0003] The main purpose of this invention is to propose an oil fume ionization device, which aims to solve the technical problem of how to improve the cleaning convenience of the oil fume ionization device.

[0004] To achieve the above objectives, the oil fume ionization device proposed in this utility model includes:

[0005] support;

[0006] An electrode plate assembly includes a positive electrode plate and a negative electrode plate arranged opposite to each other. The positive electrode plate and the negative electrode plate are rotatably mounted on the bracket. A current-passing gap is formed between the positive electrode plate and the negative electrode plate. An ionization region is formed between the edges of the positive electrode plate and the edges of the negative electrode plate.

[0007] Optionally, the bracket is provided with an air inlet, an air outlet, and a flow channel connecting the air inlet and the air outlet, the electrode plate assembly is installed in the flow channel, and the ionization region is adjacent to the air inlet.

[0008] Optionally, the fume ionization device further includes an energizer and a drive device. The energizer is used to control the electrode plate assembly to be energized or de-energized. The output shaft of the drive device is connected to the electrode plate assembly to drive the electrode plate assembly to rotate.

[0009] The oil fume ionization device has an on-state working mode and a power-off cleaning mode. In the on-state working mode, the power switch controls the electrode plate group to be energized, and the ionization zone is adjacent to the air inlet. In the power-off cleaning mode, the power switch controls the electrode plate group to be de-energized, and the driving device drives the electrode plate group to rotate.

[0010] Optionally, a plurality of discharge tips are formed on the edge of the positive electrode plate corresponding to the ionization region, and the plurality of discharge tips are spaced apart along the edge of the positive electrode plate.

[0011] Optionally, the positive and negative plates are circular plates, and the discharge tip is provided on half of the periphery of the positive plate.

[0012] Optionally, the number of electrode plate groups is multiple, and the multiple electrode plate groups are arranged along the rotation axis of the electrode plate group.

[0013] Optionally, the fume ionization device further includes a support shaft, which passes through the center of the multiple sets of electrode plates, and both ends of the support shaft are rotatably mounted on the bracket.

[0014] Optionally, the fume ionization device further includes a connecting rod that passes through multiple sets of electrode plates to connect the multiple sets of electrode plates in series, and the connecting rod is located between the support shaft and the edge of the electrode plate set.

[0015] Optionally, there may be multiple connecting rods, which are spaced apart circumferentially along the support axis.

[0016] This utility model also proposes a range hood, including the oil fume ionization device described above.

[0017] In the technical solution of this utility model's oil fume ionization device, during operation, oil fumes flow through the flow gap and then through the electrode plate assembly. As the oil fumes pass through the flow gap, they first pass through the ionization zone, where corona discharge occurs, generating a large number of charged particles. These charged particles adhere to the surface of droplets or solid particles in the oil fume, becoming charged. The charged oil fume particles then enter the flow gap, where, under the influence of the electric field, they are adsorbed onto the positive or negative electrode plate with opposite polarity, thus separating from the airflow. When cleaning the positive and negative electrode plates with adsorbed oil fume particles is required, the electrode plate assembly can be de-energized to remove the electric field force adsorbing the oil fume particles onto the electrode plate assembly. Then, the electrode plate assembly is driven to rotate, and simultaneously, water is used to rinse the electrode plate assembly. Because the electrode plate assembly rotates, all positions of the electrode plate assembly can rotate to a position where they can effectively contact the water flow, thereby improving the ease of rinsing the electrode plate assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the oil fume ionization device of this utility model;

[0020] Figure 2 This is a structural cross-sectional view of an embodiment of the oil fume ionization device of this utility model.

[0021] Explanation of icon numbers:

[0022] label name label name label name 10 support 20 Electrode plate assembly 21 Positive plate 22 negative plate 23 Overflow gap 24 Ionization region 30 support shaft 40 Connecting rod

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] In related technologies, range hoods use an oil fume ionization device to separate oil fume particles, causing the particles to become charged and adhere to a dust collection plate, thus achieving the effect of filtering oil fume particles. However, the dust collection plate is usually fixedly installed in the oil fume ionization device, and it is difficult to clean after accumulating a large amount of oil fume particles, affecting the subsequent dust collection effect.

[0028] This utility model proposes an oil fume ionization device 10, which aims to solve the technical problem of how to improve the cleaning convenience of the oil fume ionization device.

[0029] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the fume ionization device includes: a support 10; an electrode plate assembly 20, the electrode plate assembly 20 including a positive electrode plate 21 and a negative electrode plate 22 disposed opposite to each other, the positive electrode plate 21 and the negative electrode plate 22 being rotatably mounted on the support 10, a flow gap 23 being formed between the positive electrode plate 21 and the negative electrode plate 22, and an ionization region 24 being formed between the edge of the positive electrode plate 21 and the edge of the negative electrode plate 22.

[0030] In this embodiment, the bracket 10 is used to mount the electrode plate assembly 20 and support its rotation. The bracket 10 can be box-shaped or frame-shaped, and there is no limitation thereto. The positive electrode plate 21 and the negative electrode plate 22 are metal plates, and are electrically connected to the positive and negative terminals of the power supply, respectively, so that when the electrode plate assembly 20 is energized, the positive electrode plate 21 becomes positively charged and the negative electrode plate 22 becomes negatively charged, thereby forming an electric field between the positive electrode plate 21 and the negative electrode plate 22. The ionization region 24 is formed between the edge of the positive electrode plate 21 and the edge of the negative electrode plate 22, and is located upstream of the current gap 23.

[0031] When the fume ionization device is running, the oil fumes flow through the flow gap 23 and then through the electrode plate assembly 20. As the oil fumes flow through the flow gap 23, they first pass through the ionization zone 24, where corona discharge occurs, generating a large number of charged particles. These charged particles adhere to the surface of droplets or solid particles in the oil fumes, causing them to become charged. The charged oil fume particles then enter the flow gap 23, where, under the influence of the electric field, they are adsorbed onto the positive electrode plate 21 or the negative electrode plate 22 with opposite polarity, thus separating them from the airflow. When it is necessary to clean the positive electrode plate 21 and the negative electrode plate 22, which are covered with oil fume particles, the electrode plate assembly 20 can be de-energized to remove the electric field force that adsorbs the oil fume particles onto it. Then, the electrode plate assembly 20 can be driven to rotate, while simultaneously being rinsed with water. Because the electrode plate assembly 20 rotates, all positions of the assembly can be rotated to a position where they can effectively contact the water flow, thus improving the ease of rinsing the assembly.

[0032] For example, the bracket 10 is provided with an air inlet, an air outlet, and a flow channel connecting the air inlet and the air outlet. The electrode plate assembly 20 is installed in the flow channel, and the ionization zone 24 is adjacent to the air inlet. When the oil fume ionization device is running, the oil fume enters the flow channel from the air inlet, flows through the flow gap 23, and then flows out from the air outlet. The ionization zone 24 is located on the windward side of the electrode plate assembly 20. In this way, the oil fume flowing into the flow channel can be charged by flowing through the ionization zone 24 before continuing to flow to the flow gap 23. This allows the charged oil fume particles to be fully adsorbed onto the positive electrode plate 21 or the negative electrode plate 22 under the action of the electric field, thereby improving the filtration and separation effect of the oil fume particles.

[0033] Specifically, the fume ionization device further includes an energizer and a drive device. The energizer is used to control the electrode plate assembly 20 to be energized or de-energized. The output shaft of the drive device is connected to the electrode plate assembly 20 to drive the electrode plate assembly 20 to rotate.

[0034] The fume ionization device has an on-state working mode and a power-off cleaning mode. In the on-state working mode, the power switch controls the electrode plate group 20 to be energized, and the ionization zone 24 is adjacent to the air inlet. In the power-off cleaning mode, the power switch controls the electrode plate group 20 to be de-energized, and the driving device drives the electrode plate group 20 to rotate.

[0035] In the energized operating mode, it is necessary to both ionize the air in the ionization zone 24 to generate charged particles and to charge the positive electrode plate 21 and the negative electrode plate 22. Therefore, the control switch needs to energize the electrode plate assembly 20. In the de-energized mode, it is necessary to remove the attraction force of the positive electrode plate 21 and the negative electrode plate 22 on the charged particles and to allow each position of the positive electrode plate 21 and the negative electrode plate 22 to be rinsed by the water flow in turn. Therefore, the control switch needs to de-energize the electrode plate assembly 20, and the drive device needs to control the rotation of the electrode plate assembly 20. After cleaning, the electrode plate assembly 20 can be reset by the position sensor so that the ionization zone 24 can be reset to the position near the air inlet.

[0036] For example, a plurality of discharge tips are formed on the edge of the positive electrode plate 21 corresponding to the ionization region 24, and the plurality of discharge tips are spaced apart along the edge of the positive electrode plate 21. The discharge tips can enhance the corona discharge effect of the ionization region 24. By setting multiple discharge tips, the number of charged particles generated after discharge can be increased, thereby improving the adhesion efficiency of charged particles to oil fume particles.

[0037] Specifically, such as Figure 1 As shown, the positive electrode plate 21 and the negative electrode plate 22 are circular plates, and the discharge tip is provided on half of the periphery of the positive electrode plate 21. The circular plate does not occupy extra space when rotated and provides more circumference for processing the discharge tip. The discharge tip is located on the half of the periphery of the positive electrode plate 21 facing the air inlet, thereby improving the effective utilization rate of the periphery of the positive electrode plate 21.

[0038] The number of electrode plate groups 20 can be one group, or two or more groups.

[0039] For example, such as Figure 1 and Figure 2 As shown, there are multiple sets of electrode plate groups 20, which are arranged along the rotation axis of the electrode plate group 20. Each set of electrode plate groups 20 has an overflow gap 23 and a corresponding ionization zone 24, which increases the ionization of oil fumes and improves the overall oil fume treatment efficiency of the oil fume ionization device.

[0040] Specifically, such as Figure 1 and Figure 2 As shown, the fume ionization device also includes a support shaft 30, which passes through the center of the multiple sets of electrode plate assemblies 20. Both ends of the support shaft 30 are rotatably mounted on the bracket 10. The support shaft 30 can rotate relative to the bracket 10, thereby driving the multiple sets of electrode plate assemblies 20 to rotate. This simplifies the driving method of the multiple sets of electrode plate assemblies 20 and improves driving efficiency.

[0041] For example, such as Figure 2 As shown, the fume ionization device also includes a connecting rod 40, which passes through multiple sets of electrode plate groups 20 to connect the multiple sets of electrode plate groups 20 in series. The connecting rod 40 is located between the support shaft 30 and the edge of the electrode plate group 20.

[0042] The connecting rod 40 can improve the connection stability of the multiple sets of electrode plate groups 20, and can maintain sufficient distance between the positive electrode plate 21 and the negative electrode plate 22, as well as between two adjacent electrode plate groups 20, thereby ensuring the operational stability of the fume ionization device.

[0043] Specifically, such as Figure 2 As shown, there are multiple connecting rods 40, which are spaced apart circumferentially along the support shaft 30. There can be four connecting rods 40, which are spaced apart circumferentially around the support shaft 30. This increases the number of points where multiple electrode plate assemblies 20 can be interconnected via the connecting rods 40, further improving connection stability.

[0044] This utility model also proposes a range hood, which includes an oil fume ionization device 10. The specific structure of the oil fume ionization device 10 is as described in the above embodiments. Since this range hood adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0045] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An oil fume ionization device, characterized in that, include: support; An electrode plate assembly includes a positive electrode plate and a negative electrode plate arranged opposite to each other. The positive electrode plate and the negative electrode plate are rotatably mounted on the bracket. A current-passing gap is formed between the positive electrode plate and the negative electrode plate. An ionization region is formed between the edges of the positive electrode plate and the edges of the negative electrode plate.

2. The oil fume ionization device as described in claim 1, characterized in that, The bracket is provided with an air inlet, an air outlet, and a flow channel connecting the air inlet and the air outlet. The electrode plate assembly is installed in the flow channel, and the ionization region is adjacent to the air inlet.

3. The oil fume ionization device as described in claim 2, characterized in that, The fume ionization device also includes an energizer and a drive device. The energizer is used to control the electrode plate group to be energized or de-energized. The output shaft of the drive device is connected to the electrode plate group to drive the electrode plate group to rotate. The oil fume ionization device has an on-state working mode and a power-off cleaning mode. In the on-state working mode, the power switch controls the electrode plate group to be energized, and the ionization zone is adjacent to the air inlet. In the power-off cleaning mode, the power switch controls the electrode plate group to be de-energized, and the driving device drives the electrode plate group to rotate.

4. The oil fume ionization device according to any one of claims 1 to 3, characterized in that, The edge of the positive electrode plate has a plurality of discharge tips corresponding to the ionization region, and the plurality of discharge tips are spaced apart along the edge of the positive electrode plate.

5. The oil fume ionization device as described in claim 4, characterized in that, The positive and negative plates are circular plates, and the discharge tip is provided on half of the periphery of the positive plate.

6. The oil fume ionization device as described in claim 1, characterized in that, The number of electrode plate groups is multiple, and the multiple groups of electrode plate groups are arranged along the rotation axis of the electrode plate group.

7. The oil fume ionization device as described in claim 6, characterized in that, The fume ionization device also includes a support shaft, which passes through the center of the multiple sets of electrode plates, and both ends of the support shaft are rotatably mounted on the bracket.

8. The oil fume ionization device as described in claim 7, characterized in that, The fume ionization device further includes a connecting rod, which passes through multiple sets of electrode plates to connect the multiple sets of electrode plates in series. The connecting rod is located between the support shaft and the edge of the electrode plate set.

9. The oil fume ionization device as described in claim 8, characterized in that, The number of connecting rods is multiple, and the multiple connecting rods are arranged at circumferential intervals along the support axis.

10. A range hood, characterized in that, Includes the fume ionization device as described in any one of claims 1 to 9.

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