KR20220093971A - Electrification apparatus for electric dust collector and voltage control method thereof - Google Patents

Abstract

The present invention relates to an electrification apparatus for an electric dust collector and a voltage control method thereof. To that end, the electrification apparatus for an electric dust collector according to the present invention may comprise a boosting unit, a sensing unit, conductive fine fiber, a grounding unit, and a processor electrically connected to the boosting unit, the sensing unit, the conductive fine fiber, and the grounding unit, wherein the processor can generate a first voltage through the boosting unit and sense a spark occurring in the conductive fine fiber where the first voltage generated is applied. In addition, the processor can measure current leakage flowing through the grounding unit based on the sensed spark, and stop occurrence of the first voltage based on the measured current leakage. Therefore, a risk of fire breakout in a flow path can be blocked in advance to provide an electrification apparatus for an electric dust collector in a safe state.

Description

Electrostatic precipitation device and voltage control method thereof

The present invention relates to a charging device for electrostatic precipitation and a voltage control method thereof.

An air conditioner is a device that maintains air in a certain space in the most suitable state according to its purpose and purpose. In general, the air conditioner includes a compressor, a condenser, an expansion device, and an evaporator, and is driven by a refrigeration cycle that performs compression, condensation, expansion and evaporation of refrigerant. Through this drive, the space can be cooled or heated.

Also, the air conditioner may include an air conditioner for a vehicle that cools or heats the interior of the vehicle.

In this case, the vehicle air conditioner may include an electric dust collector for charging and collecting dust particles in the air. In addition, the electric dust collector may be installed in a product other than an air conditioner. For example, the electric dust collector may be installed in an air purifier, a humidifier, or the like. In addition, the electric dust collector may be independently installed in the air to remove dust from the air.

In this case, the following prior documents have been filed and published in relation to the electric dust collector installed in the vehicle air conditioner.

A prior document (JP 2011-072870 A) discloses a content in which a high voltage generator and an electrode plate of a dust collector are connected to sense a voltage and, when an abnormal voltage is sensed, operates to prevent ignition.

However, the prior literature senses the voltage of the dust collecting part electrode plate of the high voltage generator and has a structure that turns on/off through a relay using the charging time and the discharging time. There is a difficult problem.

Accordingly, as a high voltage generating device is used in the charging device for electrostatic precipitation, there is a need to safely control the charging device for electrostatic precipitation by detecting a spark that may be generated by an environmental factor.

Japanese Patent Application Laid-Open No. 2011-072870 A

The conventional charging device for electrostatic precipitation has a problem in that it is difficult to eliminate the risk of ignition under a condition of instantaneous voltage fluctuations.

Accordingly, an object of the present invention is to provide a charging device for electrostatic precipitation and a voltage control method thereof.

Another object of the present invention is to provide a charging device for electrostatic precipitation that measures a leakage current by a spark generated from a conductive fine fiber, and blocks generation of a voltage based on the measured leakage current, and a voltage control method thereof.

Another object of the present invention is to provide a charging device for electrostatic precipitation that blocks the risk of ignition in a narrow flow path in advance, and a voltage control method thereof.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

In order to achieve this object, the charging device for electrostatic precipitation of the present invention includes a boosting unit, a sensing unit, a conductive fine fiber, a grounding unit, and electrically connected to the boosting unit, the sensing unit, the conductive fine fiber, and the grounding unit. It may include a processor. In addition, the processor may generate a first voltage through the booster and sense a spark generated from the conductive fine fibers to which the generated first voltage is applied. Also, the processor may measure a leakage current flowing through the ground unit based on the sensed spark, and stop generation of the first voltage based on the measured leakage current.

In addition, the control method of the charging device for electrostatic precipitation of the present invention includes a process of generating a first voltage through a step-up unit, a process of detecting a spark generated in a conductive fine fiber to which the generated first voltage is applied, and the sensed The method may include measuring a leakage current flowing through the ground unit based on a spark, and stopping generation of the first voltage based on the measured leakage current.

The present invention can provide a charging device for electric dust collection in a safe state by preventing the risk of ignition in a narrow flow path in advance.

In addition, according to the present invention, it is possible to prevent ignition that may be generated in the flow path in advance by detecting a spark generated from the conductive microfiber and measuring the leakage current based on the spark to emphasize the voltage generation.

In addition, according to the present invention, it is possible to more quickly control the voltage of the charging device for electric dust collection by determining whether a spark is generated based on a comparison of the voltage applied to the conductive fine fiber and the voltage for the spark.

In addition, according to the present invention, by arranging the grounding part and the conductive microfibers at regular intervals on one surface of the installation frame of the charging device for electric dust collection, it is possible to determine in advance whether ignition is caused by foreign substances.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a view showing an air conditioner for a vehicle and an electric dust collecting assembly installed therein according to an embodiment of the present invention.
2 is a view showing a charging device for electric dust collection according to an embodiment of the present invention.
3 is a view showing a charging device for electric dust collection according to another embodiment of the present invention.
4 is a view showing the separation of the charging device for electric dust collection according to an embodiment of the present invention.
5 is a view showing conductive microfibers and a conductive plate of the charging device for electric dust collection according to an embodiment of the present invention.
6 is an exemplary view in which conductive microfibers and a ground wire are disposed on an installation frame according to an embodiment of the present invention.
7 is a block diagram illustrating a voltage control device of a charging device for electric dust collection according to an embodiment of the present invention.
8 is a flowchart illustrating a control process of a charging device for electric dust collection according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "upper (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It should be understood that “or, each component may be “connected,” “coupled,” or “connected,” through another component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

Hereinafter, a charging device for electric dust collection and a control method according to some embodiments of the present invention will be described.

1 is a view showing an air conditioner for a vehicle and an electric dust collecting assembly installed therein according to an embodiment of the present invention.

According to an embodiment, the air conditioner 1 for a vehicle according to the spirit of the present invention may include main bodies 11 and 15 forming an exterior. The body may include a suction body 11 in which the suction port 20 is formed and a discharge body 15 in which the discharge port 30 is formed.

According to an embodiment, the suction body 11 and the discharge body 15 may be connected to each other so that air can flow. For example, the suction body 11 and the discharge body 15 may be connected so that air flows from the suction body 11 to the discharge body 15 . However, this is an example, and the vehicle air conditioner 1 may be provided as an integrated body.

According to an embodiment, a plurality of the suction port 20 and the discharge port 30 may be respectively formed in the suction body 11 and the discharge body 15 . The suction port 20 may include an indoor suction port 21 and an outdoor suction port 22 . The indoor intake 21 is understood as an opening through which internal air of a vehicle in which the vehicle air conditioner 1 is installed is introduced into the interior of the main body 11 . Also, the outdoor intake inlet 22 is understood as an opening through which external air of the vehicle flows into the body 11 .

According to an embodiment, the discharge port 30 may include a front discharge port 31 and a defrost discharge port 32 . The front discharge port 31 is understood as an opening through which the air discharged from the main body 11 flows into the vehicle. In addition, the defrost outlet 32 is understood as an opening through which the air discharged from the main body 11 flows to the windshield of the vehicle. Thereby, the frost formed on the windshield of the vehicle can be removed.

According to an embodiment, the inlet 20 and the outlet 30 may be formed in various positions and numbers. For example, the discharge port 30 may further include a discharge port discharged to a lower side inside the vehicle or a discharge port discharged to a rear side of the vehicle.

In addition, the vehicle air conditioner 1 includes a fan and a heat exchanger installed inside the main body 11 and 15 , but is omitted from FIG. 1 for convenience of illustration.

According to an embodiment, a fan may be installed inside the suction body 11 . For example, the fan may be disposed adjacent to the suction port 20 . According to the driving of the fan, air may be introduced into the suction body 11 through the suction port 20 . In addition, air may flow from the suction body 11 to the discharge body 15 .

According to an embodiment, a heat exchanger or a heater may be disposed inside the discharge body 15 . Accordingly, the air introduced into the discharge body 15 may be cooled or heated while passing through the heat exchanger. And, it may be discharged into the interior of the vehicle through the discharge port 30 .

According to an embodiment, the vehicle air conditioner 1 may further include a damper (not shown) for selectively opening the plurality of intake ports 20 and discharge ports 30 . For example, the damper may open one of the indoor inlet 21 and the outdoor inlet 22 and close the other. Also, the damper may open at least one of the plurality of discharge ports 30 .

According to an embodiment, the electric dust collecting assembly 10 is installed in the vehicle air conditioner 1 . The electric dust collecting assembly 10 corresponds to a configuration in which dust particles in the air flowing into the vehicle air conditioner 1 are charged and collected.

The electric dust collecting assembly 10 may be installed in a product other than the vehicle air conditioner 1 .

Accordingly, FIG. 1 corresponds to an example in which the electrostatic precipitation assembly 10 is installed. In addition, the electric dust collecting assembly 10 may be installed as an independent product (eg, an air purifier) to remove dust particles in the air.

According to an embodiment, the electric dust collecting assembly 10 may include a charging device for electric dust collection 100 (hereinafter, charging device) and an electric dust collecting device 200 (hereinafter, collecting device).

According to an embodiment, the charging device 100 functions to charge foreign substances such as dust particles in the air. In addition, the collecting device 200 functions to collect the dust particles charged by the charging device 100 and remove them from the air.

According to an embodiment, the charging device 100 may include a conductive microfiber 120 and a conductive plate 130 to be described later. The conductive microfiber 120 may be disposed in the flow path of the charging device 100 . For example, the conductive microfibers 120 may be disposed in a flow path through which air flows in the charging device 100 . A high voltage may be applied to the conductive fine fibers 120 , and a ground electrode may be applied to the conductive plate 130 .

Accordingly, the charging device 100 generates ions into the air and forms an electric field. In this case, the conductive plate 130 is understood as a configuration that generates an electric field by generating a potential difference with the conductive microfiber 120 . Also, charged particles may be collected on the conductive plate 130 .

According to an embodiment, the collecting device 200 may be made of various materials for collecting particles charged by the charging device 100 . For example, the collecting device 200 may be provided with a porous fiber filter such as a non-woven fabric. In addition, a conductive material may be applied, coated, or attached to the surface of the collecting device 200 . In addition, a predetermined current may be applied to the collecting device 200 to collect charged dust particles and the like.

According to an embodiment, dust particles in the air passing through the electrostatic precipitation assembly 10 are combined with ions generated by the charging device 100 to be charged. In addition, the charged dust particles and the like may be collected by the charging device 100 or the collecting device 200 .

In this way, the charging device 100 may function not only to generate ions, but also to collect charged dust particles. Accordingly, the charging device 100 may be referred to as a 'primary filter' and the collecting device 200 may be referred to as a 'secondary filter'. And, dust particles in the air may be better removed as they pass through the primary filter and the secondary filter in turn.

At this time, in the electric dust collecting assembly 10 according to the spirit of the present invention, the charging device 100 and the collecting device 200 are provided as separate devices. Accordingly, it was called an 'assembly' in which a separate device is assembled or installed adjacently.

According to an embodiment, the charging device 100 and the collecting device 200 may be produced and distributed through different manufacturing processes and distribution processes. In addition, the charging device 100 and the collecting device 200 may be coupled to each other by a separate coupling member or the like.

According to an embodiment, the charging device 100 may perform both the functions of generating ions and collecting dust particles. Accordingly, the charging device 100 may be installed as an independent product separately from the collecting device 200 .

That is, the charging device 100 may be installed in a general air conditioner or other product other than the vehicle air conditioner 1 . In addition, the charging device 100 may be installed independently.

In addition, the charging device 100 and the collecting device 200 may be respectively installed in a predetermined product. For example, the charging device 100 and the collecting device 200 may be respectively installed in the vehicle air conditioner 1 .

Referring to FIG. 1 , the vehicle air conditioner 1 may include a dust collecting installation part 13 in which the electric dust collecting assembly 10 is installed. In detail, the dust collecting installation part 13 may be formed in the suction body 11 adjacent to the suction port 20 . In particular, the dust collecting installation part 13 may be disposed on the lower side in the flow direction of the air introduced into the suction port 20 .

This is so that the air introduced into the suction port 20 first passes through the electrostatic precipitation assembly 10 .

According to an embodiment, the air introduced into the vehicle air conditioner 1 passes through the electric dust collecting assembly 10 first, and dust particles and the like may be removed. Accordingly, it is possible to prevent foreign substances from adhering to the fan and the heat exchanger.

In addition, the vehicle air conditioner 1 is provided with a fan installation unit 12 in which the fan is installed. In detail, the fan installation part 12 is formed in the suction body 11 adjacent to the suction port 20 . In particular, the fan installation part 12 is disposed on the lower side in the air flow direction of the dust collection installation part 13 .

Accordingly, in the suction body 11, the suction port 20, the dust collecting installation part 13, and the fan installation part 12 are sequentially arranged in the air flow direction. Accordingly, the air introduced into the suction port 20 passes through the electrostatic precipitation assembly 10 and the fan in turn and flows to the discharge body 15 .

In this case, the charging device 100 and the collecting device 200 may be respectively installed in the dust collecting installation unit 13 . In particular, the collecting device 200 may be disposed on the lower side in the air flow direction of the charging device. Accordingly, the air introduced into the suction port 20 may sequentially pass through the charging device 100 and the collecting device 200 .

According to an embodiment, the charging device 100 may be installed in the dust collecting installation unit 13 in a state in which the collecting device 200 is seated. That is, the charging device 100 and the collecting device 200 may overlap and be seated on the dust collecting installation unit 13 .

In addition, a portion for fixing the charging device 100 may be formed inside the dust collecting installation unit 13 . Accordingly, the charging device 100 may be installed inside the dust collecting installation unit 13 , and the collecting device 200 may be installed under the charging device 100 .

In this way, as the charging device 100 and the collecting device 200 are installed, respectively, they can be managed. For example, the user may remove only the collecting device 200 from the vehicle air conditioner 1 to replace and wash it.

In particular, the replacement cycle of the charging device 100 and the collecting device 200 may be different from each other. In general, since a larger amount of dust particles are collected in the collecting device 200 , the replacement cycle of the collecting device 200 may be shorter.

Accordingly, the user can replace only the collecting device 200 without removing the charging device 100 .

Hereinafter, the charging device 100 will be described in detail.

2 is a view showing a charging device for electric dust collection according to an embodiment of the present invention. 3 is a view showing a charging device for electric dust collection according to another embodiment of the present invention. 4 is a view showing the separation of the charging device for electric dust collection according to an embodiment of the present invention.

2 is a front perspective view of the charging device 100 , and FIG. 3 is a rear perspective view of the charging device 100 . In addition, FIG. 4 shows each component separately in a front perspective view of the charging device 100 .

In addition, for convenience of explanation, X, Y, and Z axes perpendicular to each other are indicated in FIGS. 2 to 4 . In this case, the X, Y, and Z axes are shown to represent the relationship between each other, and the (+) and (-) directions of each axis are not distinguished.

2 to 4 , the charging device 100 may include a frame 110 forming an exterior, conductive microfibers 120 installed in the frame 110 and a conductive plate 130 . can

According to an embodiment, the frame 110 is understood as a configuration for disposing and fixing the conductive microfibers 120 and the conductive plate 130 at predetermined positions. The conductive microfiber 120 may be disposed in the flow path of the charging device 100 . For example, the conductive microfibers 120 may be disposed in a flow path through which air flows in the charging device 100 . In addition, the conductive microfibers 120 may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 may be disposed in a flow path through which air flows in the frame 110 . In addition, the frame 110 may be mounted in a space in which the charging device 100 is installed, for example, the dust collecting installation unit 13 of the vehicle air conditioner 1 described above.

According to one embodiment, the frame 110 is provided with a non-conductive material, for example, may be formed of plastic. In addition, the frame 110 may be formed in various shapes through an injection process or the like.

According to one embodiment, the conductive microfiber 120 is understood to be a configuration that ionizes molecules in the air by discharging by a high voltage. For example, anions such as OH- and O- or cations such as H+ may be generated in the air by the conductive microfibers 120 .

In addition, a wire for applying a high voltage is connected to the conductive microfiber 120 , but in FIGS. 2 to 4 , it is omitted for convenience of illustration. In addition, the conductive microfiber 120 may be understood as one end of a wire to which a high voltage is applied.

According to an embodiment, the conductive microfiber 120 includes carbon fiber. The carbon fiber is formed of microfibers having a diameter of a micrometer unit. When a high voltage is applied to the carbon fiber, ions may be generated in the air by corona discharge.

At this time, the conductive microfibers 120 are provided in the form of a carbon brush in which hundreds or thousands of the carbon pipers form one bundle. Hereinafter, one conductive microfiber 120 means one carbon brush.

According to an embodiment, the conductive microfibers 120 are disposed on the frame 110 to extend in the Z-axis direction. In this case, the Z axis may correspond to an axis extending in the air flow direction. In summary, the conductive microfibers 120 may extend parallel to the flow direction of air and be disposed on the frame 110 .

According to an embodiment, the conductive microfiber 120 may be disposed in the flow path of the charging device 100 . For example, the conductive microfibers 120 may be disposed in a flow path through which air flows in the charging device 100 . In addition, the conductive microfibers 120 may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 may be disposed in a flow path through which air flows in the frame 110 .

According to an embodiment, the conductive plate 130 is understood as a configuration that forms an electric field with the conductive microfiber 120 . Also, a ground wire to which a ground electrode is applied is connected to the conductive plate 130 . Accordingly, a potential difference may be generated between the conductive plate 130 and the conductive microfibers 120 and an electric field may be formed.

In addition, electrons may be transferred to the ground electrode. Accordingly, a high density of ions may be generated between the conductive microfiber 120 and the conductive plate 130 . In addition, due to the electric field formed between the conductive microfibers 120 and the conductive plate 130 , the charging efficiency of dust particles and the like may be improved.

According to an embodiment, the conductive plate 130 is formed of a conductive material such as metal. Accordingly, the conductive plate 130 may be understood as a metal plate having a predetermined thickness.

According to an embodiment, since the conductive plate 130 is provided as a flat plate having a predetermined width along the Z-axis, predetermined dust particles and the like may be collected. That is, charged dust particles and the like may be collected on the conductive plate 130 . Accordingly, the charging device 100 may also perform a function of collecting charged dust particles.

According to an embodiment, the conductive plate 130 may be disposed to surround the conductive microfibers 120 . In detail, the conductive plate 130 forms a predetermined space to surround the conductive microfibers 120 . Also, the predetermined space may be understood as a space in which an electric field is formed.

Hereinafter, the space formed by the conductive plate 130 is referred to as a charging space 132 . At this time, the charging space 132 means a space closed by the conductive plate 130 in the X-Y direction and open in the Z-axis direction.

In particular, the conductive plate 130 according to the spirit of the present invention forms a space in the shape of a square column. In addition, it can be understood that the conductive plate 130 is provided in a rectangular frame shape based on the conductive microfibers 120 .

In detail, the charging space 132 may have a rectangular shape on a plane, and may form a rectangular prism-shaped space extending along the Z-axis. In this case, the rectangular shape formed on the X-Y plane may correspond to a square. That is, the charging space 132 may be understood as a space in the shape of a square column.

According to one embodiment, the conductive microfiber 120 is located at the center of the charging space 132 . In detail, the conductive microfibers 120 are located in the center of the charging space 132 on the X-Y plane, and are arranged to extend along the Z-axis.

In this case, the charging space 132 means a space formed to surround one conductive microfiber 120 . Accordingly, the charging space 132 may be formed to correspond to the number of the conductive microfibers 120 .

According to one embodiment, the conductive plate 130 forms a rectangular cross section perpendicular to the flow direction of air. And, the conductive microfiber 120 is located at the center of the square cross-section.

According to an embodiment, the conductive microfiber 120 may be disposed in the flow path of the charging device 100 . For example, the conductive microfibers 120 may be disposed in a flow path through which air flows in the charging device 100 . In addition, the conductive microfibers 120 may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 may be disposed in a flow path through which air flows in the frame 110 .

According to an embodiment, the charging device 100 may include a plurality of conductive microfibers 120 . In addition, the conductive plate 130 may form a plurality of charging spaces 132 corresponding to the plurality of conductive microfibers 120 .

According to an embodiment, the plurality of conductive microfibers 120 are disposed to be spaced apart from each other in the X-Y plane. In addition, each conductive microfiber 120 may be disposed at the same interval as the adjacent conductive microfiber 120 . In addition, the plurality of conductive microfibers 120 may be disposed in parallel with the adjacent conductive microfibers 120 along the X-axis or the Y-axis. For example, as shown in FIGS. 2 to 4 , six conductive microfibers 120 may be provided.

The plurality of charging spaces 132 may correspond to the plurality of conductive microfibers 120 and may be formed separately from each other on the X-Y plane. The conductive plate 130 includes an outer plate 134 forming the plurality of charging spaces 132 and an inner plate 136 dividing the plurality of charging spaces 132 .

The outer plate 134 may be understood as a configuration that forms the exterior of the conductive plate 130 . In detail, the outer plate 134 may be provided in a rectangular frame shape.

And, the outer plate 134 forms a space in which the plurality of charging spaces 132 are combined. In detail, the outer plate 134 may have a quadrangular shape on the X-Y plane and form a space of a quadrangular prism extending along the Z-axis.

According to an embodiment, the inner plate 136 may be understood as a configuration that divides the space formed by the outer plate 134 into each charging space 132 . Accordingly, both ends of the inner plate 136 may be connected to the outer plate 134 .

In particular, the inner plate 136 extends along the X-axis or the Y-axis. For example, the inner plate 136 may divide the space formed by the outer plate 134 into six charging spaces 132 .

According to an embodiment, the outer plate 134 and the inner plate 136 may be integrally formed with each other. Alternatively, the outer plate 134 and the inner plate 136 may be separately manufactured and combined.

According to an embodiment, the frame 110 includes a body frame 112 in which the conductive plate 130 is installed and an installation frame 114 in which the conductive microfibers 120 are installed.

According to an embodiment, the body frame 112 may be understood as a configuration that forms the exterior of the frame 110 . In addition, the outer plate 134 may be fitted to the body frame 112 . Accordingly, the body frame 112 is provided in a shape corresponding to the outer plate 134 .

Accordingly, the body frame 112 is provided in a rectangular frame shape like the outer plate 134 . In detail, the outer plate 134 is installed on the body frame 112 so that the outer surface of the outer plate 134 is in contact with the inner surface of the main frame 112 .

According to an embodiment, the body frame 112 is provided with a plurality of fixing protrusions 112a in contact with the inner surface of the outer plate 134 . In addition, the outer plate 134 may be fixed to the body frame 112 by a bonding member such as a bond.

In addition, the frame 110 further includes a cover frame 116 coupled to the upper end of the body frame 112 . The cover frame 116 may be coupled to the body frame 112 to cover an upper end of the outer plate 134 . That is, the outer plate 134 may be fixed in the Z-axis by the coupling of the body frame 112 and the cover frame 116 .

According to an embodiment, the cover frame 116 and the body frame 112 may be hook-coupled. For example, a hook 112b protruding outward may be formed in the body frame 112 , and a hook groove 116a into which the hook 112b is inserted may be formed in the cover frame 116 .

In addition, a frame installation part 112c protruding to the outside and extending along the body frame 112 is formed in the body frame 112 . The frame installation part 112c may correspond to a part where the charging device 100 is installed on the product.

For example, a protrusion on which the frame installation part 112c is seated may be formed inside the dust collecting installation part 13 . Accordingly, the charging device 100 may be installed in the dust collecting installation part 13 so that the frame installation part 112c is seated on the upper portion of the protrusion.

According to an embodiment, the frame installation part 112c may be formed on the outer surface of the main body frame 112 . That is, the frame installation part 112c may be formed on the outside of the four surfaces forming the body frame 112 . Accordingly, the charging device 100 may be installed by the frame installation unit 112c irrespective of the direction in which the charging device 100 is installed on the product.

For example, the body frame 112 or the conductive plate 130 is formed in a rectangular frame having a scene and a cross-section. And, referring to FIG. 1 , the charging device 100 is inserted into the dust collecting installation part 13 so that the cross-sections are disposed on both sides. Accordingly, the frame installation part 112c formed on the end face of the body frame 112 may be seated on the inner surface of the dust collection installation part 13 .

The installation frame 114 is installed to extend to one side inside the body frame 112 . That is, both ends of the installation frame 114 are fixed to the body frame 112 . A fixing groove 114a into which the conductive microfiber 120 is fitted is formed in the installation frame 114 . At this time, the fixing grooves 114a are formed to correspond to the number of the conductive microfibers 120 .

In addition, the frame 110 may further include an auxiliary frame 118 . The auxiliary frame 118 may be understood as a configuration for maintaining rigidity of the frame 110 . That is, the auxiliary frame 118 corresponds to a configuration that prevents deformation of the body frame 112 and the installation frame 114 . Accordingly, the auxiliary frame 118 may be provided in various shapes according to design, and may be omitted.

As described above, the frame 110 may be formed by an injection process. Accordingly, although the configuration of the frame 110 has been described separately, the frame 110 may be integrally formed.

Hereinafter, the shape and arrangement of the conductive microfiber 120 and the conductive plate 130 according to the spirit of the present invention will be described in detail.

5 is a view illustrating conductive microfibers and a conductive plate of a charging device for electric dust collection according to an embodiment of the present invention.

5 is a view showing the conductive microfiber 120 and the conductive plate 130 on the X-Y plane. In this case, the Z-axis means a direction extending vertically forward or backward on the paper.

As described above, the conductive microfibers 120 extend along the Z-axis and are installed in the frame 110 . In addition, the conductive plate 130 has a length in the Z-axis direction to correspond to the length in the Z-axis direction of the conductive microfibers 120 .

As shown in FIG. 5 , six conductive microfibers 120 are provided. This is an exemplary number and is not limited thereto. For convenience of description, the first microfiber 120a, the second microfiber 120b, the third microfiber 120c, the fourth microfiber 120d, the fifth microfiber 120e, and the sixth microfiber 120f ) to separate

According to an embodiment, each of the microfiber microfibers 120a, 120b, 120c, 120d, 120e, and 120f may be disposed in the flow path of the charging device 100 . For example, each of the microfiber microfibers 120a, 120b, 120c, 120d, 120e, and 120f may be disposed in a flow path through which air flows in the charging device 100 . In addition, each of the microfiber microfibers 120a, 120b, 120c, 120d, 120e, and 120f may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 may be disposed in a flow path through which air flows in the frame 110 .

According to an embodiment, with respect to the first microfiber 120a, the second microfiber 120b and the fourth microfiber 120d are disposed adjacent to each other. In this case, the adjacent arrangement may mean the closest arrangement.

According to an embodiment, the second microfiber 120b is disposed to be spaced apart from the first microfiber 120a in the Y-axis direction. That is, the first microfibers 120a and the second microfibers 120b are arranged side by side along the Y-axis direction. In this case, the separation distance between the first microfiber 120a and the second microfiber 120b is referred to as an arbitrary distance 'A'.

According to an embodiment, the fourth microfiber 120d is disposed to be spaced apart from the first microfiber 120a in the X-axis direction. That is, the first microfiber 120a and the fourth microfiber 120d are arranged side by side along the X-axis direction. In this case, the separation distance between the first microfiber 120a and the fourth microfiber 120d may correspond to A. That is, the first microfiber 120a is spaced apart from the adjacent second microfiber 120b and the fourth microfiber 120d by the same distance.

In addition, the third microfiber 120c is disposed to be spaced apart from the second microfiber 120b by the A in the Y-axis direction. That is, the first microfibers 120a, the second microfibers 120b and the third microfibers 120c are arranged in parallel along the Y-axis direction.

According to an embodiment, the fifth microfiber 120e is disposed to be spaced apart from the fourth microfiber 120d by the A in the Y direction. In addition, the sixth microfiber 120f is disposed to be spaced apart from the fifth microfiber 120e by A in the Y direction. That is, the fourth microfiber 120d, the fifth microfiber 120e, and the sixth microfiber 120f are arranged in parallel along the Y-axis direction. In addition, the fifth microfiber 120e is disposed to be spaced apart from the second microfiber 120b by A in the X-axis direction.

According to an embodiment, the sixth microfiber 120f is disposed to be spaced apart from the third microfiber 120c by the A in the X-axis direction. For example, the first, second, fourth, and fifth microfibers 120a, 120b, 120d, and 120e correspond to vertices of a square whose side length is A on the X-Y plane, respectively. In addition, the second, third, fifth, and sixth microfibers 120b, 120c, 120e, and 120f correspond to vertices of a square whose side length is A on the X-Y plane, respectively.

According to an embodiment, as the number of the conductive microfibers 120 or the installation space of the charging device 100 is changed, the conductive microfibers 120 may be arranged differently. However, the plurality of conductive microfibers 120 may be respectively disposed at positions corresponding to the vertices of the rectangle.

In addition, the conductive microfibers 120 may be disposed in the flow path of the charging device 100 . For example, the conductive microfibers 120 may be disposed in a flow path through which air flows in the charging device 100 . In addition, the conductive microfibers 120 may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 may be disposed in a flow path through which air flows in the frame 110 .

In addition, as shown in FIG. 5 , six charging spaces 132 corresponding to the conductive microfibers 120 are formed in the conductive plate 130 . For convenience of description, the first charging space 132a, the second charging space 132b, the third charging space 132c, the fourth charging space 132d, the fifth charging space 132e, and the sixth charging space 132f ) to separate

According to an embodiment, the first to sixth charging spaces 132 are formed to surround the first to sixth microfibers 120 , respectively.

Accordingly, the first to sixth microfibers 120 are respectively disposed at the centers of the first to sixth charging spaces 132 . In addition, each charging space 132 is formed in a square having a side length of A.

According to an embodiment, as described above, the outer plate 134 forms the plurality of charging spaces 132 . That is, the outer plate 134 forms the first to sixth charging spaces 132 .

For example, the outer plate 134 includes a first outer plate 134a extending in the X-axis direction, and a second outer plate 134b extending in the Y-axis direction from one end of the first outer plate 134a. ) and a third outer plate 134c extending in the X-axis direction from one end of the second outer plate 134b may be included.

In addition, the outer plate 134 may include a fourth outer plate 134d extending in the Y-axis direction so that the third outer plate 134c and the first outer plate 134a are respectively connected to both ends. . That is, the outer plate 134 is formed in a rectangular frame, and the first to fourth outer plates 134 correspond to each corner.

For example, the outer plate 134 forms a quadrangle of 2A in the X-axis direction and 3A in the Y-axis direction. That is, the first and third outer plates 134a and 134c extend along the X axis by 2A, and the second and fourth outer plates 134b and 134d extend along the Y axis by 3A.

In addition, the first outer plate 134a is disposed to be spaced apart from the first and fourth fine particles 120a and 120d by A/2 in the Y-axis direction. In addition, the third outer plate 134a is disposed to be spaced apart from the third and sixth fine particles 120c and 120f by A/2 in the Y-axis direction.

According to an embodiment, the second outer plate 134b may be disposed to be spaced apart from the first, second, and third fine particles 120a, 120b, and 120c by A/2 in the X-axis direction. In addition, the fourth outer plate 134d is disposed to be spaced apart from the fourth, fifth, and sixth fine particles 120d, 120e, and 120f by A/2 in the X-axis direction.

According to an embodiment, the inner plate 136 may divide the first to sixth charging spaces 132 . That is, the inner plate 136 divides the first to sixth charging spaces 132 formed by the outer plate 134 into respective charging spaces 132 .

According to an embodiment, the inner plate 136 includes a first inner plate 136a and a second inner plate 136b connecting the second outer plate 134b and the fourth outer plate 134d. Included. The first inner plate 136a and the second inner plate 136b respectively extend in the X-axis direction and are spaced apart from each other in the Y-axis direction.

In addition, the inner plate 136 further includes a third inner plate 136c connecting the first outer plate 134a and the third outer plate 134c. The third outer plate 134c extends through the first and second inner plates 136a and 136b in the Y-axis direction.

Further, the first and second inner plates 136a and 136b extend in the X-axis by 2A, and the third inner plate 134c extends in the Y-axis by 3A.

The first charging space 132a is formed by the first and second outer plates 134a and 134b and the first and third inner plates 136a and 136c. In addition, the second charging space 132b is formed by the second outer plate 134b and the first, second, and third inner plates 136a, 136b, and 136c.

At this time, as shown in FIG. 5 , the first charging space 132a and the second charging space 132b are separated from each other by the first inner plate 136a. In other words, the first inner plate 136a is disposed between the first charging space 132a and the second charging space 132b.

Since the first inner plate 136a corresponds to a flat plate having a very small thickness in the Z-axis direction, it may be understood that the area is very small. That is, it can be understood that it has a very small effect on the flow of air.

In this case, although the outer plate 134 and the inner plate 136 are separately named, the conductive plate 130 may be integrally formed. In addition, the conductive plate 130 may be manufactured separately from the divided names.

6 is an exemplary view in which conductive microfibers and a ground wire are disposed on an installation frame according to an embodiment of the present invention.

Referring to FIG. 6 , on one surface (eg, upper surface) of the installation frame 114 of the charging device 100 for electric dust collection according to an embodiment of the present invention, the conductive microfiber 120 and the grounding part (eg, the ground wire) ) 610 may be disposed at a location spaced apart by a predetermined interval (eg, 5 mm). The predetermined interval may be variably adjusted. For example, the predetermined interval (eg, 5 mm) may be an optimal distance for measuring a leakage current flowing through the ground unit.

According to an embodiment, a high voltage (eg, 3.5V) may be applied to the conductive microfiber 120 .

For example, the conductive microfiber 120 and the grounding part (eg, a grounding wire) 610 may be disposed on at least one of an upper surface, a lower surface, a seat surface, or a rear surface of the installation frame 114 .

According to an embodiment, the conductive microfiber 120 and the grounding part (eg, a grounding wire) 610 may be disposed in the flow path of the charging device 100 . For example, the conductive microfiber 120 and the ground portion (eg, a ground wire) 610 may be disposed in a flow path through which air flows in the charging device 100 . In addition, the conductive microfiber 120 and the grounding part (eg, a grounding wire) 610 may be disposed in the flow path of the frame 110 . For example, the conductive microfiber 120 and the grounding part (eg, a grounding wire) 610 may be disposed in a flow path through which air flows in the frame 110 .

According to an embodiment, the conductive microfiber 120 and the grounding part (eg, a grounding wire) 610 are disposed on the upper surface of the installation frame 114 of the charging device 100 , and the charging device 100 . By the coupling of the installation frame 114 and the conductive plate 130 of the may be introduced into the interior of the conductive plate (130).

7 is a block diagram illustrating a voltage control device of a charging device for electric dust collection according to an embodiment of the present invention.

Referring to FIG. 7 , the voltage control device 700 of the charging device for electric dust collection according to an embodiment of the present invention may include a boosting unit 710 , a sensing unit 720 , and a processor 730 .

According to an embodiment, when a signal is input from the processor 730 , the booster 710 generates a high voltage having a constant voltage (eg, 3.7V). The booster 710 may receive a signal output from the processor 730 and generate a high voltage having a constant voltage (eg, 3.7V) based on the received signal. The constant voltage (eg, 3.7V) may be a voltage for operating the charging device 100 for electrostatic precipitation.

According to an embodiment, the high voltage generated by the booster 710 may be applied to the conductive fine fibers 120 . The conductive microfibers 120 may be discharged by a high voltage to ionize molecules in the air.

According to an embodiment, the sensing unit 720 may detect a spark generated in the conductive microfiber 120 by the high voltage. The sensing unit 720 may sense a leakage current flowing through the ground unit 610 based on a spark generated from the conductive microfiber 120 . The ground unit 610 may include a ground line through which a spark-based leakage current may flow. The sensing unit 720 may measure a leakage current and transmit the measured leakage current value to the processor 730 .

According to an embodiment, the processor 730 generates a first voltage through the boosting unit 710, and is generated by the first voltage in the conductive microfiber 120 to which the generated first voltage is applied. The leakage current for the generated spark may be sensed through the sensing unit 720 . The spark means a spark that temporarily flashes while electricity is on and then disappears.

According to an embodiment, the processor 730 may transmit a signal to the booster 710 to generate the first voltage. The processor 730 may transmit a signal (eg, a pulse width modulation (PWM) signal) for generating a high voltage in the booster 710 to the booster 710 .

According to an embodiment, the processor 730 compares the magnitude (or difference) between the first voltage and the second voltage with respect to the spark, and the difference between the first voltage and the second voltage is a predetermined voltage. If it exceeds, it may be determined that the spark has occurred. The predetermined voltage may include 1.2V.

According to an embodiment, the processor 730 may detect a spark generated by a foreign substance between the ground unit 610 and the conductive microfiber 120 .

According to an embodiment, the processor 730 measures a leakage current flowing through the ground unit 610 based on the spark, and generates the first voltage based on the measured leakage current to the booster unit It can be stopped by controlling 710 . The processor 730 transmits a signal (eg, a pulse width modulation signal) transferred to the booster 710 (or periodically transferred) to prevent the first voltage from being generated based on the measured leakage current. can stop

According to an embodiment, the processor 730 may transmit a control signal for adjusting the magnitude of the voltage generated by the booster 710 to the booster 710 based on the measured amount of leakage current. .

For example, when the leakage current is detected but the leakage current is smaller than the first reference current, the processor 730 may not block the transmission of the signal transmitted to the booster 710 . . Alternatively, when the sensed leakage current is greater than the first reference current and less than the second reference current, the processor 730 generates a signal for outputting the booster 710 at a voltage lower than the high voltage. may be transmitted to the boosting unit 710 . Alternatively, when the detected leakage current is greater than the second reference current, the processor 730 blocks transmission of a signal for generating a high voltage to the booster 710 or to the booster 710 . The signal may not be transmitted.

In this way, the processor 730 may control the transmission of the signal transmitted to the booster 710 based on the measurement of the leakage current.

8 is a flowchart illustrating a control process of a charging device for electric dust collection according to an embodiment of the present invention.

Hereinafter, with reference to FIG. 8, the control process of the charging device for electric dust collection according to an embodiment of the present invention will be described in detail as follows.

According to an embodiment, the charging device 100 for electrostatic precipitation (eg, the processor 730) may generate a pulse width modulation signal (S810). The charging device 100 for electrostatic precipitation (eg, the processor 730 ) may transmit a signal causing the booster 710 to generate a high voltage to the booster 710 in an active state. The signal may include a pulse width modulated signal.

According to an embodiment, the charging device 100 for electrostatic precipitation (eg, the processor 730) may generate a high voltage based on the pulse width modulation signal (S812). The charging device 100 for electrostatic precipitation (eg, the processor 730 ) may generate a high voltage through the booster 710 . The high voltage may be applied to the conductive microfibers 120 .

According to an embodiment, the charging device 100 for electric dust collection (eg, the processor 730 ) may detect a spark due to the generated high voltage ( S814 ). The charging device 100 for electrostatic precipitation (eg, the processor 730 ) may sense a spark generated from the conductive microfiber 120 through the sensing unit 720 . The charging device 100 for electrostatic precipitation (eg, the processor 730 ) may obtain information about the leakage current caused by the spark from the sensing unit 720 from the sensing unit 720 . The information on the leakage current may include a value indicating the magnitude of the leakage current.

According to an embodiment, the charging device 100 for electric dust collection (eg, the processor 730 ) may measure a leakage current according to the detected spark ( S816 ). The charging device 100 for electrostatic precipitation (eg, the processor 730 ) may identify the leakage current based on the information on the leakage current due to the spark obtained from the sensing unit 720 . The electrostatic precipitation charging device 100 (eg, the processor 730 ) is a control signal for adjusting the magnitude of the voltage generated by the boosting unit 710 based on the measured amount (or magnitude) of the leakage current. may be transmitted to the boosting unit 710 .

According to an embodiment, the charging device 100 for electric dust collection (eg, the processor 730 ) may stop the generation of the pulse width modulation signal based on the measured leakage current ( S818 ). The charging device 100 for electrostatic precipitation (eg, the processor 730 ) transmits a control signal for controlling the magnitude of the voltage output from the booster 710 to the booster 710 based on the measured leakage current. can transmit

For example, when the leakage current is sensed, but the leakage current is smaller than the first reference current, the charging device 100 for electric dust collection (eg, the processor 730 ) sends the booster 710 to the booster 710 . Transmission of the transmitted signal may not be blocked. Alternatively, when the magnitude of the detected leakage current is greater than or equal to the first reference current and less than the second reference current, the charging device 100 (eg, the processor 730 ) for the electrostatic precipitation may include the booster 710 . A signal to be output at a voltage lower than the high voltage may be transmitted to the booster 710 . Alternatively, when the detected leakage current is greater than or equal to the second reference current, the charging device 100 for electrostatic precipitation (eg, the processor 730 ) transmits a signal for generating a high voltage to the booster 710 . block, or the signal may not be transmitted to the booster 710 .

Each step in each of the above-described flowcharts may be operated regardless of the illustrated order, or may be performed simultaneously. In addition, at least one component of the present invention and at least one operation performed by the at least one component may be implemented in hardware and/or software.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

710: step-up unit 720: sensing unit
730: processor

Claims (11)

In the charging device for electrostatic precipitation,
boosting unit;
sensing unit;
conductive microfibers;
ground; and
A processor electrically connected to the booster unit, the sensing unit, the conductive microfiber, and the ground unit,
The processor is
generating a first voltage through the boosting unit;
Detecting a spark generated in the conductive microfiber to which the generated first voltage is applied,
Measuring the leakage current flowing through the ground portion based on the sensed spark,
A charging device for electrostatic precipitation set to stop the generation of the first voltage based on the measured leakage current.
According to claim 1,
The processor is
It is set to control the generation of the first voltage by transmitting a signal to the boosting unit,
The signal is a charging device for electrostatic precipitation including a pulse width modulation signal.
3. The method of claim 2,
The processor is
A charging device for electric dust collection configured to block the signal transmitted to the booster based on the measurement of the leakage current.
According to claim 1,
The processor is
comparing the first voltage with a second voltage for the spark;
When the difference between the first voltage and the second voltage exceeds a predetermined voltage, it is set to determine that the spark has occurred,
The predetermined voltage is a charging device for electric dust collection of 1.2V.
According to claim 1,
The ground portion and the conductive microfiber are
A charging device for electrostatic precipitation disposed at regular intervals on one surface of the installation frame of the charging device for electrostatic precipitation.
6. The method of claim 5,
The processor is
A charging device for electrostatic precipitation set to detect the spark generated by a foreign substance between the ground portion and the conductive microfiber.
7. The method of claim 6,
The grounding part and the conductive microfiber are disposed on one surface in the flow path of the charging device for electric dust collection.
A method for controlling a charging device for electrostatic precipitation, the method comprising:
generating a first voltage through a step-up unit;
detecting a spark generated in the conductive microfiber to which the generated first voltage is applied;
measuring a leakage current flowing through a ground unit based on the sensed spark; and
and stopping the generation of the first voltage based on the measured leakage current.
9. The method of claim 8,
The process of stopping the generation of the first voltage is,
and blocking the signal transmitted to the booster based on the leakage current.
9. The method of claim 8,
The process of detecting the spark,
comparing the first voltage with a second voltage for the spark;
and determining that the spark is generated when a difference between the first voltage and the second voltage exceeds a predetermined voltage.
9. The method of claim 8,
The process of detecting the spark,
and detecting the spark generated by a foreign material between the grounding part and the conductive microfiber disposed at a predetermined distance on one surface of the installation frame of the charging device for electric dust collection.

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