JP7210607B2 - Dust collection electrode unit, air cleaner, and control method thereof - Google Patents

Description

This disclosure is based on a Chinese application with application number 201810578650.2, filed on June 7, 2018, from which priority is claimed, and the entire content of the disclosure of this Chinese application is incorporated into the present disclosure by reference. ing.

TECHNICAL FIELD The present disclosure relates to the technical field of air cleaning, and more particularly to a dust collecting electrode unit, an air cleaning device, and a control method thereof.

With increasing environmental problems, air purifiers have become an indispensable household appliance in many households. Air purifiers are usually divided into filtration type and electrostatic type. Filtration air purifiers use filtration nets to filter out particulate impurities such as PM2.5 in the air. increases. On the other hand, electrostatic air purifiers purify the air with an electric cleaning method, so there is no need to replace consumables and the internal plates can be cleaned regularly, thus reducing operating costs. Let

Due to the extremely high dust collection efficiency of the electrostatic air purifier, the accumulation of dust easily weakens the dust collection ability of the pole plate, so users frequently wash the pole plate to ensure the cleaning effect of the purifier. required and the user experience is compromised.

According to some embodiments of the present disclosure, a dust collection electrode unit for use in an air cleaning device comprising a power generation unit, comprising:
A collection electrode movable to change at least one of a position and an orientation with respect to the generator unit.

In some embodiments, the collection electrode unit further comprises a collection electrode support structure, and the collection electrode is movable with respect to the collection electrode support structure.

In some embodiments, the dust-collecting electrode unit is used in an air cleaning device further comprising a power-generating electrode unit, the dust-collecting electrode unit comprises a dust-collecting electrode and a dust-collecting electrode support structure, The collecting electrode is movable with respect to the collecting electrode support structure so as to change at least one of a position and an orientation with respect to the generating electrode unit.

In some embodiments, the dust-collecting electrode comprises an electrode plate body and a plurality of dust-collecting structures provided on the electrode plate body, and the dust-collecting electrode is located at different positions and or when oriented, the power generation unit is installed opposite to the different dust collection structures.

In some embodiments, the plurality of dust collection structures are provided on opposite first and second sides of the plate body, respectively.

In some embodiments, the dust collection structure comprises a protrusion provided on a side edge of the plate body.

In some embodiments, the projection is a portion of a circular cross-section with an extending direction coinciding with the side edge.

In some embodiments, the dust collection electrode support structure includes a frame structure, the dust collection electrode is provided in the frame structure so as to be rotatable about an axis parallel to the first side, The dust collection electrode is placed at a first position where the dust collection structure on the first side faces the power generation electrode unit, and a second position where the dust collection structure on the second side faces the power generation electrode unit. It is possible to rotate between the positions of

In some embodiments, the plate body further comprises a third side and a fourth side connecting the first side and the second side, wherein the third side and the fourth side is provided with a rotating shaft, and the frame structure is provided with a rotating shaft hole that fits the rotating shaft, or the third side and the fourth side is provided with a rotary shaft hole, and the frame structure is provided with a rotary shaft that fits into the rotary shaft hole.

In some embodiments, the dust collection electrode unit further includes a driving device that rotationally drives the dust collection electrode between the first position and the second position.

In some embodiments, a plurality of the dust collecting electrodes are arranged in parallel,
The dust collection electrode unit further includes a transmission mechanism, and the driving device synchronously rotates the plurality of dust collection electrodes via the transmission mechanism.

In some embodiments, the transmission mechanism includes a gear transmission mechanism or a dual crank mechanism.

In some embodiments, the dust collection electrode has a structure that can be expanded and contracted in a direction parallel to the third side, contracts when rotated, and expands to return to its original shape when the rotation ends. • Configured to return to size.

In some embodiments, the dust collection electrode contracts in a motorized manner, or the dust collection electrode unit further comprises an offset member, the dust collection electrode is movable with respect to the stationary portion and the stationary portion. When the dust collection electrode rotates and interferes with the fixed portion of the adjacent dust collection electrode, the movable portion receives the action of force and moves to the retracted position, and the dust collection electrode rotates. When the movement is completed, the movable portion is restored to its normal position by the action of the offset member.

According to some other embodiments of the present invention, an air cleaning device comprises said dust collecting electrode unit.

In some embodiments, the air purification device further comprises a power generation unit, wherein the dust collection electrode unit changes at least one of a position and an orientation of the dust collection electrode with respect to the power generation unit. It is movable with respect to the power generation electrode unit.

According to a further embodiment of the present invention, the method for controlling the air cleaning device comprises:
statistically accumulating operating time of the air purification device;
If the accumulated operating time is longer than or equal to the first predetermined time, controlling the driving device to rotate the dust collecting electrode once, or if the accumulated operating time is longer than or equal to the second predetermined time, controlling the collecting electrode. sending a prompt message to the user urging him to clean the dust electrode.

In some embodiments, the method of statistically accumulating operating time of an air purification device comprises:
When the dust collection electrode of the air cleaning device is used for the first time, counting the accumulated operating time starting from the time when the air cleaning device is first activated;
When the dust collection electrode of the air cleaning device has been cleaned, counting the accumulated operation time starting from the initial start time after cleaning the dust collection electrode of the air cleaning device.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, and the above and other objects, features and advantages of the present invention will become clearer.

FIG. 4 is a structural schematic diagram of several embodiments of the dust collection electrode unit of the present invention; FIG. 4 is a structural schematic diagram of several embodiments of the dust collecting electrode of the dust collecting electrode unit of the present invention; 1 is an exploded view of several embodiments of an air cleaning device of the present invention; FIG.

EXAMPLES The present disclosure will be described below with reference to Examples, but the present disclosure is not limited to these Examples. In the interests of the present disclosure, well-known methods, processes, procedures, and devices have not been described in detail.

Furthermore, it will be appreciated by those skilled in the art that the drawings herein are provided for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires, terms such as "including," "comprising," etc. throughout the specification and claims are to be interpreted in an inclusive sense and not in an exclusive or exhaustive sense. , which means "including but not limited to".

In describing the present invention, terms such as "first" and "second" are for descriptive purposes only and do not indicate or imply relative importance. Furthermore, in the description of this disclosure, unless otherwise specified, "plurality" means two or more.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust collection electrode unit capable of effectively reducing the frequency of cleaning, an air cleaning apparatus including this dust collection electrode unit, and a control method thereof.

The dust collection electrode of the dust collection electrode unit according to the present invention is movable with respect to the dust collection electrode support structure, so that at least one of the position and orientation of the dust collection electrode with respect to the power generation electrode unit is The main dust collecting area of the collecting electrode can be changed by changing at least one of the position and orientation of the collecting electrode with respect to the generator unit, and when more dust accumulates in a certain area, , the dust collecting electrode can be repositioned or oriented to collect dust in a different area, thereby effectively reducing cleaning frequency and reducing attenuation of particle CADR of the cleaning device; Improve user experience.

The present invention provides a dust-collecting electrode unit and an air cleaner, such as an electrostatic air cleaner, having the dust-collecting electrode unit. As shown in FIG. 3, the air purifying device according to the present disclosure includes a power generation electrode unit 1 and a dust collection electrode unit 2 that are installed facing each other. It comprises a dust collection electrode 21 and a dust collection electrode support structure, and the dust collection electrode support structure is used to support the dust collection electrode 21 . When the power generating electrode 11 is energized, a high potential difference is generated between the power generating electrode 11 and the dust collecting electrode 21 to generate corona discharge, and the particles between the power generating electrode 11 and the dust collecting electrode 21 are charged and charged. The particles move to the dust collection electrode 21 and deposit on the dust collection electrode 21, thereby achieving air cleaning effect.

Here, the most important dust collection area of the dust collection electrode 21 is the portion of the dust collection electrode 21 facing the power generation electrode 11 . In order to solve the problem that exists in the related art that the dust collection electrode 21 needs to be cleaned frequently to ensure the cleaning effect of the cleaning device, the dust collection according to the present disclosure is shown in FIGS. The dust collection electrode 21 of the electrode unit 2 is movable with respect to the dust collection electrode support structure. By doing so, the position and/or orientation of the dust collection electrode 21 with respect to the power generation electrode unit 1 can be changed, and by changing the position and/or orientation of the dust collection electrode 21 with respect to the power generation electrode unit 1, the dust collection electrode 21 can be changed. The primary dust collection area can be varied. Thus, when more dust accumulates in one area, the position or orientation of the dust collection electrode 21 can be changed to collect dust in another area, thereby effectively reducing the frequency of cleaning and cleaning. Reduces device particle CADR attenuation and improves user experience. Here, CADR is "clean air supply rate" in Japanese and "Clean Air Delivery Rate" in English.

Here, as a method of moving the dust collection electrode 21 with respect to the dust collection electrode support structure, for example, it can be translated and/or rotated with respect to the dust collection electrode support structure. For example, when it is rotated with respect to the dust collection electrode support structure, the main dust collection area of the dust collection electrode 21 can be easily changed without adversely affecting the compactness of the overall structure of the air cleaner.

Further, as shown in FIG. 2 , the dust collection electrode 21 includes an electrode plate body 211 and a plurality of dust collection structures 212 installed on the electrode plate body 211 . It increases the dust collection area and allows the dust collection electrode 21 to collect more dust. When the dust collection electrodes 21 are at different positions and/or orientations with respect to the power generation electrode unit 1, the power generation electrode unit 1 is installed opposite to different dust collection structures 212, that is, one dust collection electrode 21 position and/or Each time the orientation is changed, the dust collecting structure 212 facing the power generation electrode unit 1 is replaced. In this way, whenever the position or orientation of the dust collection electrode 21 is changed, a new dust collection structure 212 is installed facing the power generation electrode unit 1 and used to collect dust, thereby: The usage time of the dust collection electrode unit 2 is increased.

The dust collection structure 212 may be any structure that can increase the dust collection area of the dust collection electrode 21 , and in some embodiments, the dust collection structure 212 is provided on the side of the plate body 211 . A convex portion is provided, and preferably, the convex portion extends in the same direction as the side edge and has a cross section that is a part of a circular shape. and a portion of a circle is a truncated portion of a full circle, eg, a truncated small portion of a circle.

The electrode plate main body 211 has a first side 2111 and a second side 2112 facing each other, and a third side connecting both ends of the first side 2111 and the second side 2112, respectively. 2113 and a fourth side 2114 . In some embodiments, a plurality of dust collection structures 212 are provided on the first side 2111 and the second side 2112, respectively. For example, in the embodiment shown in FIG. 2, the first side 2111 of the plate body 211 is provided with the first protrusion 2121, and the second side 2112 of the plate body 211 is provided with the second protrusion. A portion 2122 is provided, and in this way, by rotating the dust collection electrode 21, the dust collection structure 212 on the first side 2111 or the dust collection structure 212 on the second side 2112 can be moved to the power generation electrode unit. 1 can be installed facing each other.

Specifically, as shown in FIG. 1 , the dust collection electrode support structure includes a frame structure 22 , and the dust collection electrode 21 is rotatable within the frame structure 22 about an axis parallel to the first side 2111 . The dust collecting electrode 21 is arranged such that the first convex portion 2121 on the first side 2111 faces the power generation electrode unit 1, and the first convex portion 2121 serves as a main dust collecting structure 212 for collecting dust. 1 and a second position where the second protrusion 2122 on the second side 2112 faces the power generation electrode unit 1 and the second protrusion 2122 serves as the main dust collection structure 212 and collects dust. rotatable between

Rotating shafts are provided on the third side 2113 and the fourth side 2114 of the dust collecting electrode 21, and correspondingly, the frame structure 22 has a rotating shaft hole (not shown) that engages with the rotating shaft. The rotary shaft is rotatably provided in the rotary shaft hole, and the dust collection electrode 21 is rotatable. Alternatively, the third side 2113 and the fourth side 2114 of the dust collecting electrode 21 are provided with rotation shaft holes, and correspondingly, the frame structure 22 is provided with rotation shafts (not shown) that fit into the rotation shaft holes. ) is provided, and the rotating shaft is rotatably provided in the rotating shaft hole, so that the dust collecting electrode 21 can be rotated.

In some embodiments, a plurality of dust collection electrodes 21 are arranged side by side, and the dust collection electrodes 21 are separated from each other so that all the dust collection electrodes 21 can rotate simultaneously without interfering during rotation. In order to minimize the interval between the dust collecting electrodes 21 and improve the compactness of the structure, for example, the rotating shaft or the rotating shaft hole is provided on the third side 2113 and the fourth side. It is provided at the midpoint of side 2114 .

In some other embodiments, the dust collection electrode 21 has a structure that can be expanded and contracted in a direction parallel to the third side 2113, and the dust collection electrode 21 contracts when rotated, and the dust collection electrodes 21 are separated from each other. , and when the rotation ends, it expands and returns to its original shape and dimensions. Here, the dust collection electrode 21 is contracted in an electric manner, or the dust collection electrode 21 has a fixed portion and a movable portion movable with respect to the fixed portion, and the movable portion is the original of the dust collection electrode 21. In order to maintain the shape and dimensions, an offset member, such as a spring, is in a normal position. , moves to the retracted position under the action of force, and returns to the normal position due to the action of the offset member when the rotation of the dust collection electrode 21 is completed. The space between the dust collection electrodes 21 can also be reduced by making the dust collection electrodes 21 expandable.

In order to automatically switch the position of the dust collection electrode 21, in some embodiments, the dust collection electrode unit 2 drives the dust collection electrode 21 to rotate between the first position and the second position. It further comprises a drive (not shown) for. Examples of the driving device include a device capable of rotationally driving the dust collecting electrode 21, such as a motor and a rotating cylinder. For example, the driving device may be installed at one end of the collecting electrode 21 and mounted on the frame structure 22 .

Furthermore, in order to simplify the structure, the dust collection electrode unit 2 further includes a transmission mechanism (not shown), and the driving device synchronously rotates the plurality of dust collection electrodes 21 via the transmission mechanism, The transmission mechanism may be any rotatable transmission mechanism, such as a gear transmission mechanism, a double crank mechanism, and the like.

The rotation of the dust collecting electrode 21 can be automatically controlled by the air cleaner. For example, the accumulated operation time of the air purifier is statistically calculated. As a statistical method, when the dust collection electrode 21 of the air purifier is used for the first time, the accumulated operation time is calculated starting from the first startup time of the air purifier. , when the dust collecting electrode 21 of the air purifying device is washed, the air purifying device counts the accumulated operating time starting from the first start time after the dust collecting electrode 21 is washed, and the accumulated operating time is calculated as the first predetermined time. If the accumulated operation time is equal to or longer than the second predetermined time, a prompt message prompting the user to wash the dust collecting electrode 21 is controlled. to the user. When the user cleans the dust collecting electrode 21 and sets it in the air purifier again, the accumulated operation time is cleared, and the clearing here may be automatic clearing. When it is detected that it has been reattached, it is determined that it has been washed, and the accumulated operating time is automatically cleared, or the user may manually perform the clearing operation. Here, the first predetermined time and the second predetermined time can be set according to a specific situation. is less than or equal to twice the first predetermined time.

In another embodiment, the air cleaner is provided with a button (not shown), and the user can voluntarily control the rotation of the dust collection electrode 21 by pressing the button. For example, when the button portion is triggered, the driving device rotates the dust collection electrode 21 once. The button part may be a mechanical button or a virtual button provided on a touch screen.

In an alternative embodiment, the dust collection electrode unit is configured to be movable with respect to the power generation unit as a whole, thereby allowing the dust collection electrode of the dust collection electrode unit to change one of the positions and orientations of the dust collection electrode with respect to the power generation unit. At least one can be changed. For example, the dust collection electrode unit as a whole is configured to be rotatable or movable with respect to the power generation electrode unit, and this configuration method is similar to the configuration and installation of the dust collection electrode described above, so a detailed description thereof will not be given here.

Furthermore, as shown in FIG. 3, the air cleaner according to the present disclosure further includes a primary filtration network 3 and an ozone reduction network 4. The unit 2 and the ozone reduction network 4 are arranged in sequence, and the air is pre-filtered by the primary filtration network 3, so that the usage time of the dust collection electrode unit 2 becomes longer, which occurs in the air cleaning process of the air cleaning device. Ozone is decomposed in the ozone reduction network 4 .

As those skilled in the art will appreciate, each of the above preferred forms may be combined or fused in any desired manner unless inconsistent.

It should be noted that the above embodiments are illustrative only and not restrictive, and that various obvious or equivalent modifications or substitutions to the above details can be made by those skilled in the art without departing from the underlying principles of the present disclosure. can be performed, all of which are within the scope of the claims of this disclosure.

Claims (14)

A dust collection electrode unit for use in an air cleaning device comprising a power generation electrode unit,
a dust collecting electrode movable to change at least one of a position and an orientation with respect to the power generation electrode unit;
The dust-collecting electrode comprises an electrode plate body and a plurality of dust-collecting structures installed on the electrode plate body, and the plurality of dust -collecting structures can increase the dust-collecting area of the dust-collecting electrode. When the electrodes are at different positions and/or orientations with respect to the power generation unit, the power generation unit is installed facing different dust collection structures in the plurality of dust collection structures, and the different dust collection structures are respectively A dust collection electrode unit provided on a first side and a second side located on opposite side ends of an electrode plate body . The dust collection electrode unit according to claim 1, further comprising a dust collection electrode support structure, said dust collection electrode being movable with respect to said dust collection electrode support structure. The plurality of dust collection structures includes a first protrusion provided on the first side and a second protrusion provided on the second side, and by rotating the dust collection electrode, 2. The dust collecting electrode unit according to claim 1 , wherein the first convex portion on the first side or the second convex portion on the second side is installed to face the power generation electrode unit. . The extension direction of the first protrusion matches the first side , the extension direction of the second protrusion matches the second side, and the first protrusion and the second protrusion 4. The dust collecting electrode unit according to claim 3, wherein the cross section of the two projections is a part of a circle. a collecting electrode support structure, wherein the collecting electrode is movable with respect to the collecting electrode supporting structure; the collecting electrode supporting structure comprises a frame structure; It is installed in the frame structure so as to be rotatable about an axis parallel to the first side, and the dust collection electrode is placed in the first position where the dust collection structure on the first side faces the power generation electrode unit. 4. The dust collection electrode unit of claim 3, wherein the dust collection structure on the second side is rotatable between a second position facing the power generation electrode unit. The electrode plate body further includes a third side and a fourth side connecting the first side and the second side, wherein the third side and the fourth side is provided with a rotating shaft, and the frame structure is provided with a rotating shaft hole that fits the rotating shaft, or the third side and the fourth side are provided with a rotating shaft hole. 6. The dust collecting electrode unit according to claim 5, wherein the frame structure is provided with a rotating shaft that fits into the rotating shaft hole. 6. The dust collection electrode unit according to claim 5, further comprising a driving device that rotates said dust collection electrode between said first position and said second position. A plurality of the dust collection electrodes are arranged in parallel,
8. The dust collecting electrode unit according to claim 7, further comprising a transmission mechanism, wherein said driving device synchronously rotates said plurality of said dust collecting electrodes via said transmission mechanism. The dust collection electrode unit according to claim 8, wherein the transmission mechanism includes a gear transmission mechanism or a double crank mechanism. The dust collection electrode has a structure that can be expanded and contracted in a direction parallel to the third side, and is configured to contract when rotating, and expand to return to its original shape and dimensions when the rotation ends. The dust collecting electrode unit according to claim 6, wherein The dust collection electrode contracts in an electric manner, or the dust collection electrode unit further includes an offset member, the dust collection electrode includes a fixed portion and a movable portion movable with respect to the fixed portion, and When the dust electrode rotates and interferes with the fixed portion of the adjacent dust collection electrode, the movable portion receives the action of force and moves to the retracted position, and when the rotation of the dust collection electrode is completed, 11. The dust collecting electrode unit according to claim 10, wherein said movable portion is restored to a normal position by the action of said offset member. An air cleaner comprising the dust collection electrode unit according to any one of claims 1 to 11. A control method for an air cleaning device according to claim 12,
The dust collection electrode unit further includes a driving device that drives the dust collection electrode to rotate between a first position and a second position, and the control method includes:
statistically accumulating operating time of the air purification device;
If the accumulated operating time is longer than or equal to the first predetermined time, controlling the driving device to rotate the dust collecting electrode once, or if the accumulated operating time is longer than or equal to the second predetermined time, controlling the collecting electrode. sending a prompt message to the user to clean the dust electrode. The step of counting the cumulative operation time of the air purification device comprises :
when the dust collecting electrode of the air purifying device is used for the first time, counting the cumulative operation time starting from the first startup time of the air purifying device;
14. The method according to claim 13, further comprising, when the dust collecting electrode of the air purifying device has been washed, counting the accumulated operation time starting from the first start time after the dust collecting electrode of the air purifying device has been washed. air purifying device control method.

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