KR102495017B1 - Electrification apparatus for electric dust collector - Google Patents

Abstract

The present invention relates to a charging device for electric dust collection in which space utilization and space efficiency can be maximized by installing a high voltage supply unit for generating a voltage to be supplied to a discharge tip in a cover module.

Description

Charging device for electric dust collection {ELECTRIFICATION APPARATUS FOR ELECTRIC DUST COLLECTOR}

The present invention relates to a charging device for electric dust collection, and more particularly, to a charging device for electric dust collection in which space utilization and space efficiency can be maximized by installing a high voltage supply unit for generating a voltage to be supplied to a discharge tip in a cover module. it's about

In general, a method of removing particles includes two processes of charging and dust collection, in which dust is charged and the charged dust is collected by a dust collection filter.

More specifically, dust collection methods include physical dust collection using a nonwoven fabric, electric dust collection using a dielectric filter, and electrostatic force applied to the physical dust collection filter using an electrostatic nonwoven fabric.

Charging methods include diffusion charging, electric field charging, and hybrid charging (diffusion and electric field charging).

Electric field charging applied to hybrid charging is advantageous for trapping large particles, and diffusion charging is advantageous for trapping small particles.

In this regard, in this regard, Patent Publication No. 10-2020-0009889 discloses a structure related to a structure for fixing conductive microfibers and cables to an installation frame provided inside the body frame and supporting them.

According to the configuration disclosed in the prior art document, it is only disclosed that the charging device is disposed in the dust collection installation unit in a state in which the charging device is simply placed on the upper side of the collecting device such as an air filter for a vehicle, and the high voltage supply unit for supplying high voltage to the charging device There is no disclosure at all about the configuration and the configuration in which the high voltage supply unit is installed.

That is, the charging device in the prior art document is connected to a high voltage supply unit installed at a spatially separated location by a cable, etc. to receive power.

Therefore, a separate space for accommodating the high voltage supply unit must be secured, and a separate means for installing the high voltage supply unit must be provided. Therefore, in the case of an object with severe spatial restrictions, such as an air conditioner for a vehicle, securing a space for installing the high voltage supply unit is inevitably very limited.

In addition, in the case where power is received through a cable from a high voltage supply unit installed at a location spatially separated from the charging device, that is, a long distance, the structure is very complicated, such as a separate means for supporting and maintaining the cable. It's bound to get complicated.

Publication No. 10-2020-0009889

The present invention has been made to solve the above-mentioned problems of the prior art, and space utilization and space efficiency are achieved without securing a separate installation space for the high voltage supply unit by installing a high voltage supply unit in a cover module coupled to a charging module. A first object is to provide a charging device for electric dust collection that can maximize.

In addition, a second object of the present invention is to provide a charging device for electric dust collection in which a wiring structure can be simplified and manufacturing costs can be significantly reduced by supplying voltage from a high voltage supply unit to individual discharge tips with only a single high voltage cable. do.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can 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 means of the instrumentalities and combinations indicated in the claims.

A charging device for electric dust collection according to the present invention includes a charging module that generates ions emitted into flowing air, and the charging module includes at least one discharge tip, a conductive plate, a frame, and a high voltage supply unit. Through this, space utilization and space efficiency can be maximized without securing a separate installation space for the high voltage supply unit.

The device may further include a cover module disposed on a front side of the charging module and coupled to the frame, and the high voltage supply unit is accommodated in the cover module.

In addition, the cover module includes an accommodating portion in which an accommodating space in which the high voltage supply unit is installed is formed and a rear surface facing the frame is opened.

In addition, the front surface of the accommodating part protrudes in a direction away from the frame, and the high voltage supply part is disposed between the front surface and the frame.

In addition, the cover module includes at least one terminal having one end protruding from the front surface of the accommodating part and the other end penetrating the rear surface of the accommodating part and protruding into the accommodating space.

In addition, the cover module further includes a connector disposed on a front surface of the accommodating part, and one end of the at least one terminal extends into the connector.

In addition, the cover module is formed by insert-injecting the at least one terminal.

In addition, the connector is integrally formed with the cover module.

In addition, the high voltage supply unit is disposed in the accommodating unit, and is inserted into the first case through a conductive first case having an open rear surface and an open rear surface of the first case, and having an open rear surface. An insulative second case, and a PCB board on which a plurality of circuit components are mounted and inserted through an open rear surface of the second case, wherein the PCB board is electrically connected to the other end of the at least one terminal .

In addition, the first case includes a first through hole through which the other end of the at least one terminal extends, and the second case extends through the other end of the at least one terminal.

The high voltage supply unit further includes a case ground cable having one end electrically connected to the PCB board and the other end electrically connected to the first case.

In addition, the second case includes a cable rib for fixing the case ground cable.

In addition, the high voltage supply unit further includes an insulating plate disposed on the open rear surface of the second case and a shielding plate disposed on the rear surface of the insulating plate.

In addition, the charging module further includes a high voltage cable electrically connecting the discharge tip and the PCB board.

In addition, the high voltage cable includes a single main cable having one end electrically connected to the PCB board.

In addition, the insulation plate has a first cutting part forming a passage through which one end of the main cable passes, the shielding plate is formed at a position corresponding to the first cutting part, and one end of the main cable It has a second cutting part forming a passage through which it passes.

The charging module further includes a ground cable having one end electrically connected to the PCB board and the other end electrically connected to the conductive plate, wherein one end of the ground cable connects to the first cutting part and the first cutting part. 2 passes through the cutting part and is connected to the PCB board.

In the charging device for electric dust collection according to the present invention, since the high voltage supply unit is installed in the cover module coupled to the charging module, space efficiency can be maximized.

In addition, since only a single high-voltage cable is connected to the high-voltage supply unit in the charging device for electric dust collection according to the present invention, the wiring structure is extremely simplified and the manufacturing cost can be remarkably reduced.

In addition, in the charging device for electric dust collection according to the present invention, the convenience of cleaning or repairing the charging device can be improved by forming a connector connected to an external power source on the front surface of the cover module.

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

1 is a perspective view showing an air conditioner for a vehicle and a charging device for electricity according to an embodiment of the present invention.
2 is a rear perspective view of the charging device for electric dust collection shown in FIG. 1;
Figure 3 is an exploded perspective view of Figure 2;
4 is an exploded perspective view of the charging module shown in FIG. 3;
5 is a front perspective view and cross-sectional view of the charging module shown in FIG. 3;
FIG. 6 is a partially enlarged view of the upper frame shown in FIG. 5 .
7 is a partially enlarged view of the lower frame shown in FIG. 5;
8 is a perspective view of the discharge tip and tip holder shown in FIG. 3;
FIG. 9 is a cross-sectional view of the discharge tip and tip holder shown in FIG. 8 .
10 and 11 are exploded perspective views of the discharge tip and tip holder shown in FIG. 8;
12 is a view for explaining a process of manufacturing a discharge tip and a tip holder according to an embodiment of the present invention.
13 is a view for explaining a cable holder according to an embodiment of the present invention.
14 and 15 are rear perspective views of a cover module and a high voltage supply unit according to an embodiment of the present invention.
16 and 17 are exploded perspective views of the cover module and the high voltage supply unit shown in FIG. 15 .
18 to 21 are perspective views illustrating a process of installing a high voltage supply unit to a cover module according to an embodiment of the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter 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 first, second, etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another component, and unless otherwise stated, the first component may be the second component, of course.

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

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

In addition, when a component is described as "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components may be "interposed" between each component. ", or each component may be "connected", "coupled" or "connected" through other components.

Singular expressions used herein include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or some of the steps It should be construed that it may not be included, or may further include additional components or steps.

Also, singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or some of the steps It should be construed that it may not be included, or may further include additional components or steps.

Throughout the specification, when "A and/or B" is used, this means A, B or A and B unless otherwise specified, and when used as "C to D", this means unless otherwise specified As long as there is no, it means C or more and D or less.

Hereinafter, the present invention will be described with reference to drawings for explaining the charging device 100 for electric dust collection according to embodiments of the present invention.

First, with reference to FIGS. 1 to 3, the entire assembly structure constituting the electric dust collecting charging device 100 and the vehicle air conditioner 1 according to an embodiment of the present invention will be schematically described, and each assembly structure is schematically described.

<Entire configuration>

1 is a perspective view showing a charging device 100 for electric dust collection and a vehicle air conditioner 1 in which the electric dust collection charging device 100 according to an embodiment of the present invention is installed.

As shown in FIG. 1 , the charging device 100 for electric dust collection according to an embodiment of the present invention may be installed in an air conditioner 1 for a vehicle.

However, the present invention is not limited thereto and can be applied to various types of building air conditioners, home air conditioners, and air cleaners. Hereinafter, it will be described based on the electric dust collecting charging device 100 provided in the vehicle air conditioner 1 as an example.

The vehicle air conditioner 1 may include main bodies 11 and 15 forming an exterior. The main body may include a suction main body 11 in which the inlet 20 is formed and a discharge main body 15 in which the outlet 30 is formed.

The suction body 11 and the discharge body 15 communicate with each other so that air can flow.

The suction port 20 and the discharge port 30 may be formed in a plurality of each in the suction body 11 and the discharge body 15 .

The inlet 20 may include an indoor inlet 21 and an outdoor inlet 22 . The indoor air inlet 21 may be an inlet through which internal air of the vehicle in which the vehicle air conditioner 1 is installed is introduced into the body 11 . In addition, the outdoor air intake 22 may be an inlet through which outside air of the vehicle is introduced into the body 11 .

The discharge port 30 may include a front discharge port 31 and a defrost discharge port 32 . The front discharge port 31 may be an outlet through which air discharged from the main body 11 flows into the vehicle. In addition, the defrost outlet 32 may be an outlet through which air discharged from the main body 11 flows to the window of the vehicle.

In addition, the vehicle air conditioner 1 may include a fan (not shown) and a heat exchanger (not shown) installed inside the main bodies 11 and 15 .

In addition, the vehicle air conditioner 1 may further include a damper (not shown) that selectively opens 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 one. Also, the damper may open at least one of the plurality of discharge ports 30 .

In addition, a charging device 100 for electric dust collection and a collecting device 200 may be installed in the air conditioner 1 for a vehicle.

The charging device 100 for electric dust collection serves to charge foreign substances such as dust particles in the air. In addition, the collecting device 200 functions to collect dust particles charged by the electric dust collecting device 100 and remove them from the air.

The charging device 100 for electric dust collection may include a charging module 1000 having a discharge tip 1100 and a conductive plate 1200 to be described later.

A high voltage is applied to the discharge tip 1100, and a ground electrode is applied to the conductive plate 1200. Accordingly, the charging device 100 for electric dust collection may generate ions into the air and form an electric field.

At this time, the conductive plate 1200 may generate an electric field by generating a potential difference with the discharge tip 1100 . A detailed configuration of the charging device 100 for electric dust collection will be described later with reference to FIG. 2 or less.

The collecting device 200 corresponds to a kind of filter that performs a function of collecting particles charged by the charging device 100 for electric dust collection, and may be made of various materials.

For example, the collecting device 200 may be configured as a porous fiber filter such as non-woven fabric. In addition, a conductive material may be applied, coated, or attached to the surface of the collection device 200 .

Through this configuration, dust particles in the air passing through the charging device 100 for electric dust collection are combined with ions generated in the charging device 100 for electric dust collection and are charged. Also, the charged dust particles may be collected in the charging device 100 or the collecting device 200 for electric dust collection.

On the other hand, the charging device 100 for electric dust collection according to an embodiment of the present invention may be provided as a separate device separated from the collecting device 200.

In detail, the charging device 100 for electric dust collection and the collecting device 200 may be produced and distributed through different manufacturing processes and distribution processes. In addition, the electric dust collecting charging device 100 and the collecting device 200 may be coupled to each other by a separate coupling member and mounted on the vehicle air conditioner 1.

As shown in FIG. 1, the vehicle air conditioner 1 includes a dust collecting installation unit 13 in which a charging device 100 and a collecting device 200 are installed. More specifically, the dust collecting installation part 13 is formed on the suction body 11 adjacent to the suction port 20 .

In particular, the dust collection installation unit 13 is disposed on the downstream side relative to the flow direction of the air introduced into the inlet 20 . This is to allow the air introduced through the inlet 20 to pass through the electric dust collecting charging device 100 before the collecting device 200 .

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

Therefore, in the suction body 11, the suction port 20, the dust collection installation unit 13 and the fan installation unit 12 are sequentially disposed in the air flow direction. Accordingly, the air introduced into the suction port 20 may flow to the discharge main body 15 through the electric dust collecting device 100, the collecting device 200, and the fan in order.

At this time, the electric dust collecting 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 is disposed on the downstream side relative to the flow direction of the air than the charging device 100 for electric dust collection. Accordingly, the air introduced into the inlet 20 may flow through the electric dust collecting device 100 and the collecting device 200 in turn.

The charging device 100 for electric dust collection may be installed in the dust collecting installation unit 13 in a state where the collecting device 200 is seated. That is, as shown, the electric dust collecting charging device 100 and the collecting device 200 may be overlapped and seated on the dust collecting installation unit 13 .

In this way, as the electric dust collecting charging device 100 and the collecting device 200 are individually installed, each can be managed. For example, the user may be able to replace and wash only the collecting device 200 by separating it from the vehicle air conditioner 1.

In particular, replacement cycles of the charging device 100 for electric dust collection and the collecting device 200 may be different from each other. In general, since a larger amount of dust particles and the like are collected in the collecting device 200, the replacement cycle of the collecting device 200 may be shorter. Therefore, the user can replace only the collecting device 200 without the need to replace the electric dust collecting charging device 100, and the user's convenience can be remarkably improved.

<Configuration of charging device for electric dust collection>

Hereinafter, a charging device 100 for electric dust collection according to an embodiment of the present invention will be described.

2 is a rear perspective view of a charging device 100 for electric dust collection according to an embodiment of the present invention, and FIG. 3 is a charging module 1000 and a cover module of the charging device 100 for electric dust collection shown in FIG. 2000) is an exploded perspective view showing the separated state.

2 and 3, the charging device 100 for electric dust collection according to an embodiment of the present invention includes a charging module 1000 for charging foreign substances such as dust particles contained in passing air, and a charging module ( A cover module 2000 disposed in front of 1000 may be included.

The charging module 1000 as a whole is inserted into the dust collecting installation unit 13 and corresponds to a part directly exposed to the flowing air.

The cover module 2000 is coupled to the opening of the dust collection installation unit 13 into which the charging module 1000 is inserted and corresponds to a portion serving as a stopper to block the opening.

The cover module 2000 includes a cover part 2100 that functions as a stopper.

A high voltage supply unit 2200 generating a high voltage to be supplied to the charging module 2000 may be accommodated in the cover unit 2100 . That is, the charging device 100 for electric dust collection according to the present invention is configured such that the high voltage supply unit 2200 is accommodated in the cover unit 2100 as a position adjacent to the charging module 2000. Therefore, since there is no need to secure a separate installation space for the high voltage supply unit 2200, space efficiency can be remarkably improved compared to the prior art.

A high voltage cable 1600 for supplying voltage to the discharge tip 1100 and a ground cable 1700 for grounding the conductive plate 1200 may be electrically connected to the high voltage supply unit 2200 . A connection between the high voltage supply unit 2200 and the ground cable 1700 will be described later with reference to FIG. 7 .

Based on the state shown in FIG. 3 , a protruding surface 2112 is formed on the front surface 2111 of the cover unit 2100 to at least partially protrude toward the front. Through this, an accommodating portion having an accommodating space in which the high voltage supply unit 2200 can be accommodated may be formed on the rear side of the protruding surface 2112 .

As shown in FIG. 3 , a main connector 2113 for supplying external power to the high voltage supply unit 2200 may be integrally or separately provided on the front surface 2111 of the cover unit 2100 .

Meanwhile, both sides of the cover module 2000 may be provided with hook-type retainers 2120 and protrusions 2130 for detachable coupling to the dust collecting installation unit 13 .

As shown in FIG. 3 , the charging module 1000 and the cover module 2000 may be detachably coupled to each other through a second bolt b2. In more detail, the connection part 1411b of the charging module 1000 may be fastened through the second bolt b2 while being coupled to the rear surface of the cover part 2100.

<Detailed composition of the battle module>

FIG. 4 is an exploded perspective view of the charging module 1000, FIG. 5 is a cross-sectional view of the charging module 1000, and FIGS. 6 and 7 are partially enlarged views of the frame 1400.

Referring to FIGS. 4 to 7 , the charging module 1000 of the charging device 100 for electric dust collection according to an embodiment of the present invention will be described.

The charging module 1000 may include a frame 1400 forming an exterior, a discharge tip 1100 installed in the frame 1400, and a conductive plate 1200.

The conductive plate 1200 serves to form an electric field together with the discharge tip 1100 . Also, the conductive plate 1200 may be provided as a metal plate having a predetermined thickness, and a ground cable 1700 for grounding may be connected to the conductive plate 1200 . Accordingly, a potential difference may be generated between the conductive plate 1200 and the discharge tip 1100, and an electric field may be formed.

In addition, high-density ions may be generated between the discharge tip 1100 and the conductive plate 1200 .

Since the conductive plate 1200 is provided as a flat plate having a predetermined width along the vertical direction (U-D direction), predetermined dust particles and the like can be collected. However, in order to prevent dust particles from directly adhering to the conductive plate 1200, the conductive plate 1200 is at least partially covered by an upper frame 1400 to be described later.

The conductive plate 1200 is disposed to surround the discharge tip 1100 . More specifically, the conductive plate 1200 forms a predetermined charging space surrounding the discharge tip 1100 . At this time, the charging space may be formed as a space closed by the conductive plate 1200 in the front-back direction (F-R direction) and left-right direction (Le-Ri direction) and open in the up-down direction (U-D direction).

In particular, the conductive plate 1200 forms a square columnar charging space. Preferably, the charge space may be formed as a square prism-shaped space in order to uniformize the magnetic field and the uniformity of ion emission.

At this time, the discharge tip 1100 is located at the center of the charging space and may be disposed to emit ions in a direction opposite to the flow direction F of air.

As described above, the charging space means a space formed to surround one discharge tip 1100. Accordingly, the charging space may be formed corresponding to the number of discharge tips 1100.

In this embodiment, it is illustrated that a total of 9 charging spaces are illustratively formed. At this time, the discharge tips 1100 may be disposed in individual charging spaces, or the discharge tips 1100 may be disposed only in some charging spaces.

In the illustrated embodiment, a configuration in which a total of five discharge tips 1100 are disposed is disclosed, and the number of discharge tips 1100 provided may be adjusted according to a required ion emission amount or air flow rate. Hereinafter, as illustrated for convenience, a configuration in which a total of five discharge tips 1100 are disposed will be described based on the configuration.

The conductive plate 1200 may include an outer plate 1210 forming a plurality of charging spaces and an inner plate 1220 partitioning a plurality of charging spaces.

The external plate 1210 corresponds to a configuration forming an outer circumference of the conductive plate 1200 . More specifically, the outer plate 1210 may be provided in a rectangular frame shape.

However, in this embodiment, the front side may be formed in the shape of a U-shaped square frame with an open front side using a total of three external plates 1210 . As shown in FIG. 4, the position adjacent to the cover module 2000 may be opened without an external plate 1210 to avoid interference with the high voltage cable 1600 for supplying voltage to the discharge tip 1100. can

Meanwhile, the inner plate 1220 serves to divide the space formed by the outer plate 1210 into individual charging spaces.

As shown, the inner plate 1220 extends in the front-back direction (F-R direction) or left-right direction (Le-Ri direction). For example, the inner plates 1220 may cross each other so that a space formed by the outer plate 1210 can be divided into nine charging spaces.

In this case, the outer plate 1210 and the inner plate 1220 may be integrally formed with each other, or the outer plate 1210 and the inner plate 1220 may be manufactured separately and then combined.

Meanwhile, as shown in FIG. 4 , a notch 1221 through which a high voltage cable 1600 for supplying voltage to individual discharge tips 1100 passes may be formed in the inner plate 1220 .

The frame 1400 forms the exterior of the charging module 1000 and serves to support and fix the discharge tip 1100 and the conductive plate 1200 at a predetermined position.

The frame 1400 is made of a non-conductive material, and may be formed of, for example, plastic. In addition, the frame 1400 may be formed in various shapes through an injection process or the like.

In more detail, the frame 1400 includes an upper frame 1410 disposed above the discharge tip 1100 and the conductive plate 1200, and a lower frame disposed below the discharge tip 1100 and the conductive plate 1200. It may be configured to include (1420).

The upper frame 1410 and the lower frame 1420 may be detachably fastened to each other. For detachable coupling, the upper frame 1410 may be provided with a plurality of coupling hooks 1411a protruding and extending toward the lower frame 1420 . Illustratively, the individual coupling hooks 1411a may be provided in a form in which a plurality of hooks are arranged in a circumferential direction, and these individual coupling hooks 1411a are disposed at four corners of the upper outer frame 1411 to be described later. It can be.

An annular coupling ring 1421a may be formed in the lower frame 1420 by inserting individual coupling hooks 1411a to form a hook. As the coupling hook 1411a is inserted into the insertion hole formed in the coupling ring 1421a, a hook may be formed.

However, this is merely exemplary, and may be configured such that other fastening means or coupling means may be provided.

While the upper frame 1410 and the lower frame 1420 are fastened to each other, the outer plate 1210 of the conductive plate 1200 and the discharge tip 1100 are sandwiched between the upper frame 1410 and the lower frame 1420 can be supported

A detailed configuration of the frame 1400 will be described later with reference to FIGS. 5 to 7 .

Meanwhile, the discharge tip 1100 performs a function of ionizing molecules in the air by discharging with a high voltage. For example, negative ions such as OH- and O- or positive ions such as H+ may be generated in the air by the discharge tip 1100.

To this end, a high voltage cable 1600 supplying a high voltage may be connected to the discharge tip 1100 .

In addition, the discharge tip 1100 may include a discharge brush 1110 that directly generates discharge. Illustratively, the discharge brush 1110 may be composed of a plurality of carbon fibers. The carbon fibers may be formed of microfibers having a diameter of a micrometer unit, and when a high voltage is applied to the carbon fibers through the high voltage cable 1600, ions may be generated in the air by corona discharge.

The discharge tip 1100 is disposed on the frame 1400 so as to extend in a vertical direction (U-D direction), preferably protruding in a direction opposite to the flow direction of air (F). Through this, the diffusion effect of the emitted ions can be maximized, and dust particles included in the air can be equally charged.

Meanwhile, the discharge tip 1100 is firmly supported by the tip holder 1500, and the discharge tip 1100 may be firmly fixed to the frame 1400 through the tip holder 1500.

Detailed configurations of the discharge tip 1100 and the tip holder 1500 will be described below with reference to FIG. 8 .

<Detailed composition of the frame>

Hereinafter, a detailed configuration of the frame 1400 of the charging module 1000 according to an embodiment of the present invention will be described with reference to FIGS. 5 to 7 .

First, as shown in FIGS. 5 and 6 , the frame 1400 is an upper frame 1410 serving to support or cover the conductive plate 1200 and the tip holder 1500 of the discharge tip 1100 from the upper side. ).

More specifically, the upper frame 1410 includes an upper outer frame 1411 , a first upper inner frame 1412 , a second upper inner frame 1413 , and a third upper inner frame 1414 .

The upper outer frame 1411 is a portion corresponding to the outermost portion and functions as an outer rim having a rectangular shape as a whole and having a predetermined height.

The upper outer frame 1411 is configured to have a U-shaped cross section with an open lower end, and the outer plate 1210 disposed outside of the conductive plates 1200 is partially accommodated in the U-shaped inner space. That is, the upper portion of the outer plate 1210 is covered by the upper outer frame 1411 .

Meanwhile, a high voltage cable 1600 and a cable holder 1800 to be described later are disposed in the inner space of the distal end 1411d of the upper outer frame 1411 corresponding to the portion where the outer plate 1210 of the conductive plate 1200 is not formed. Accepted.

A first notch 1411d1 corresponding to the outer shape of the cable holder 1800 is formed at a portion where the cable holder 1800 is accommodated, and a passage through which the high voltage cable passes so that one end of the high voltage cable can be connected to the high voltage supply unit 2200. A second notch 1411d2 may be formed.

The first upper inner frame 1412 extends from the inside of the upper outer frame 1411 in the front-rear direction (F-R direction), and may be integrally formed with the upper outer frame 1411 .

Like the upper outer frame 1411, the first upper inner frame 1412 has an open bottom and is configured to have a U-shape in cross section, and a high voltage cable 1600 for supplying voltage to the discharge tip 1100 inside the C-shape ) is accepted.

In addition, a first coupling portion 1412a to which an upper side of a tip holder 1500 to be described later is coupled is formed in the first upper inner frame 1412 .

As shown in FIGS. 5 and 6 , the first coupling part 1412a is configured to have an inner shape corresponding to the outer shape of the top of the tip holder 1500, and the upper surface of the first coupling part 1412a will be described later. A first coupling hole 1412b is formed through which the upper hook portion 1520 of the tip holder 1500 penetrates and is coupled.

In addition, most of the upper surface of the first coupling portion 1412a, except for the portion where the first coupling hole 1412b is formed, is open, and the discharge tip 1100 fixed to the tip holder 1500 through the open hole 1412c. ) is exposed to the outside.

As shown in the enlarged view of FIG. 5 , the open hole 1412c may extend to both side surfaces of the first upper inner frame 1412 . That is, the open hole 1412c may be formed by cutting the upper surface of the first coupling part 1412a to a predetermined depth. Through this, interference with the discharge tip 1100 of the first coupler 1412a can be minimized, and discharge efficiency of the discharge tip 1100 can be maximized.

Meanwhile, the first upper inner frame 1412 disposed immediately adjacent to the upper outer frame 1411 may be provided with two first coupling parts 1412a so that the two tip holders 1500 may be coupled to each other. .

At this time, as shown in FIG. 6, the discharge tip 1100 disposed adjacent to the rear end 1411c of the first coupling part 1412a disposed adjacent to the front end 1411d of the upper outer frame 1411 A first extension 1412d may be formed to provide a passage through which the high voltage cable 1600 that supplies power travels.

The high voltage cable 1600 for supplying power to the discharge tip 1100 disposed adjacent to the rear end 1411c of the upper outer frame 1411 through the first extension 1412d is It is possible to avoid and detour the first coupling portion 1412a disposed adjacent to the front end portion 1411d and proceed toward the rear end portion 1411c.

At this time, as shown in FIG. 6 , a first partition wall 1412e is provided between the first expansion part 1412d and the distal end 1411d of the upper outer frame 1411 to separate and accommodate the two high voltage cables 1600. can be formed The first partition wall 1412e extends in a straight line shape, and together with the second partition wall 1422e to be described later, divides the inner space extending from the front end part 1411d of the upper outer frame 1411 to the first coupling part 1412a. .

Meanwhile, the second upper inner frame 1413 extends from the inside of the upper outer frame 1411 parallel to the first upper inner frame 1412 in the front-rear direction (F-R direction).

The second upper inner frame 1413 serves to cover the top of the inner plate 1220 extending in the front-rear direction (F-R direction). Accordingly, the rate at which the charged dust particles are directly adhered to the inner plate 1220 can be minimized.

As shown, the first upper inner frame 1412 and the second upper inner frame 1413 are alternately formed side by side with each other.

Meanwhile, the third upper inner frame 1414 is configured to extend inside the upper outer frame 1411 in a direction crossing the first upper inner frame 1412 and the second upper inner frame 1413 .

Like the second upper inner frame 1413, the third upper inner frame 1414 serves to cover the upper part of the inner plate 1220 extending in the left-right direction (Le-Ri direction).

In this way, the third upper inner frame 1414 and the second upper inner frame 1413 are arranged in a lattice form to form intersections with each other. Through this, it is possible to at least partially cover and support the upper part of the inner plate 1220 of the conductive plate 1200 configured in the same lattice shape.

Meanwhile, as shown in FIGS. 4 and 7 , the lower frame 1420 serving to support the conductive plate 1200 and the tip holder 1500 from the lower side includes a lower outer frame 1421 and a lower inner frame 1422 ).

The lower outer frame 1421 is a part corresponding to the outermost part and has a shape corresponding to the upper outer frame 1411 of the upper frame 1410 described above, and is configured to be coupled to the open lower part of the upper outer frame 1411 do.

Through this, the outer plate 1210 of the conductive plate 1200 can be entirely accommodated by the upper outer frame 1411 and the lower outer frame 1421 .

The lower inner frame 1422 is a portion coupled to the open lower surface of the first upper inner frame 1412 described above, and is configured to extend in the front-rear direction (F-R direction) like the first upper inner frame 1412.

A second coupling portion 1422a is formed in the lower inner frame 1422 to correspond to the aforementioned first coupling portion 1412a. The lower side of the tip holder 1500 to be described later is coupled to the second coupling part 1422a.

The second coupling portion 1422a is configured to have an inner shape corresponding to the outer shape of the lower portion of the tip holder 1500, and a lower hook portion (described later) of the tip holder 1500 is formed on the lower surface of the second coupling portion 1422a. A second coupling hole 1422b through which 1530 extends is formed.

Meanwhile, the lower inner frame 1422 disposed immediately adjacent to the lower outer frame 1421 may include two second coupling parts 1422a so as to be coupled to the two tip holders 1500 .

At this time, the second coupling part 1422a disposed adjacent to the front end of the lower outer frame 1421 is a high voltage cable for supplying power to the discharge tip 1100 disposed adjacent to the rear end of the lower outer frame 1421 A second extension 1422d for providing a passage through which 1600 proceeds is formed.

The high voltage cable 1600 that supplies power to the discharge tip 1100 disposed adjacent to the rear end of the lower outer frame 1421 through the second extension 1422d is adjacent to the front end of the lower outer frame 1421. It is possible to avoid and detour the second coupling part 1422a to proceed toward the rear end.

At this time, as shown in FIG. 7 , a second partition wall 1422e may be formed between the second expansion part 1422d and the front end of the lower outer frame 1421 to separate and accommodate the two high voltage cables 1600. there is. The second partition wall 1422e extends in a straight line shape and divides the inner space extending from the front end of the lower outer frame 1421 to the second coupling part 1422a together with the first partition wall 1412e described above.

<Detailed composition of discharge tip and tip holder>

Detailed configurations of the discharge tip 1100 and the tip holder 1500 of the charging module 1000 according to an embodiment of the present invention will be described with reference to FIGS. 8 to 12 .

As described above, the present invention includes a plurality of discharge tips 1100 and a plurality of tip holders 1500. The contents described below are almost equally applied to the individual discharge tip 1100 and the tip holder 1500 unless otherwise specified.

8 to 11 show the configuration of the tip holder 1500 according to the first embodiment, and FIG. 12 shows the configuration of the tip holder 1500 according to the second embodiment.

The tip holder 1500 of the charging device 100 for electric dust collection according to an embodiment of the present invention is manufactured separately from the discharge tip 1100 and the high voltage cable 1600, and the discharge tip 1100 and the high voltage cable ( 1600), or may be manufactured by an insert injection method in a state where the discharge tip 1100 and the high voltage cable 1600 are disposed in a mold.

First, a configuration in which the tip holder 1500 is separately manufactured according to the first embodiment will be described with reference to FIGS. 8 to 11 .

The tip holder 1500 includes a hexahedron-shaped body portion 1510 supporting the discharge tip 1100 and the high voltage cable 1600, and the body portion 1510 includes a first half body 1511 and a second half ( 1512). The first half 1511 and the second half 1512 may be manufactured by injection molding separately from the discharge tip 1100 and the high voltage cable 1600 .

The discharge tip 1100 and the high voltage cable 1600 are at least partially pressed between the first half 1511 and the second half 1512 while being pressed by the first half 1511 and the second half 1512. supported

To this end, the first half body 1511 accommodates the high voltage cable 1600 and the discharge tip 1100, and has a shape corresponding to the outer shape of the heat shrink tube 1130 and the high voltage cable 1600 supporting the discharge tip 1100. It is provided with a cable seating groove 1511 having a.

In addition, the first half body 1511 is configured to have a greater thickness than the second half body 1512 to be described later so as to accommodate the high voltage cable 1600 and the discharge tip 1100 .

A coupling groove 1511a for coupling with a second half body 1512 to be described later is formed in the first half body 1511, and a coupling protrusion 1512a of the second half body 1512 is inserted into the coupling groove 1511a.

The second half body 1512 is coupled to one side of the first half body 1511 on which the cable seating groove 1511 is formed to prevent the high voltage cable 1600 and the discharge tip 1100 from being separated and at the same time as the high voltage cable 1600 and the discharge tip 1100 to maintain a pressure state.

In order to fix the position of the discharge tip 1100 and prevent separation, a pressure protrusion 1512b for pressing the heat shrink tube 1130 is formed on one side of the second half 1512 facing the first half 1511.

In addition, a coupling protrusion 1512a for coupling to the first half 1511 is formed on one side of the second half 1512 facing the first half 1511 .

Meanwhile, as shown, on the upper and lower surfaces of the first half 1511 and the second half 1512, a pair of upper hook parts 1520 and a pair of lower hook parts 1530 having substantially the same shape, respectively. ) is formed.

At this time, the pair of upper hook parts 1520 and the pair of lower hook parts 1530 are disposed at positions spaced as far as possible from the discharge tip 1100 to prevent interference with the discharge tip 1100, respectively. . Preferably, the upper hook portion 1520 includes a rear upper hook 1521 disposed on the rearmost side of the upper end surface 1540 of the body portion 1510 and a front upper hook disposed on the frontmost side of the body portion 1510. It can be configured as a hook 1522.

For the same reason, the lower hook portion 1530 includes a rear lower hook 1531 disposed at the last end of the lower surface of the body portion 1510 and a front lower hook disposed at the foremost end of the lower surface of the body portion 1510. (1532).

In addition, to minimize interference with the discharge tip 1100, the pair of upper hook parts 1520 and the pair of lower hook parts 1530 have the aforementioned first coupling hole 1412b and the second coupling hole 1412b, respectively. When fastened to the hole 1422b, they are arranged to deform in directions away from each other.

Also, for the same reason, the height h1 at which the discharge tip 1100 protrudes from the top surface 1540 may be set greater than the height h2 at which the upper hook portion 1520 protrudes from the top surface 1540 .

As described above, the tip holder 1500 may be manufactured by an insert injection method in a state in which the discharge tip 1100 and the high voltage cable 1600 are disposed in a mold.

Referring to FIG. 12, a configuration in which the tip holder 1500 and the discharge tip 1100 are manufactured by insert injection molding according to the second embodiment will be described.

First, as shown in FIG. 12(a), one end of the discharge brush 1110 in the form of a carbon brush and one end of the core wire 1601 of the high voltage cable 1600 are connected through the terminal part 1120. One end of the core wire 1601 of the high voltage cable 1600 is exposed to the outside in a state where the sheath 1602 is peeled off.

The terminal part 1120 serves to cover the contact part in the circumferential direction and press the contact part in a state where one end of the discharge brush 1110 and one end of the core wire 1601 of the high voltage cable 1600 are in contact with each other. .

The discharge brush 1110 of the discharge tip 1100 can be electrically connected to the cable 1600 through the terminal portion 1120 .

Next, as shown in FIG. 12(b), a heat shrinkable tube 1130 is introduced so that the heat shrinkable tube 1130 covers at least a contact area between the discharge brush 1110 and the terminal unit 1120. At this time, the heat shrinkable tube 1130 can be extended to a contact portion between the cable 1600 and the terminal unit 1120 .

As will be described later, in order to prevent damage to the discharge brush 1110 due to injection pressure, the heat shrink tube 1130 passes through the contact area between the discharge brush 1110 and the terminal unit 1120 and partially covers the lower end of the discharge brush 1110. It is preferred that it extends to cover.

Next, when the arrangement of the heat shrink tube 1130 is completed, the heat shrink tube 1130 is heated to shrink. The primary airtightness of the contact portion between the discharge brush 1110 and the terminal unit 1120 is completed by contraction of the heat shrink tube 1130 .

Next, as shown in FIG. 12(c), the cable 1600 is bent at a predetermined angle to set the directing angle of the discharge brush 1110.

12(c) shows an embodiment in which the bending part 1610 is bent so that the discharge brush 1110 is almost perpendicular to a horizontal plane, but the bending part 1610 is bent according to product specifications and a required orientation angle. Angle can be adjusted.

In particular, it is also possible to adjust the angle of the bending part 1610 so that all of the five discharge tips 1100, except for the discharge brush 1110 disposed in the center, face inward.

When the setting of the orientation angle of the discharge tip 1100 with respect to the discharge brush 1110 is completed, the discharge brush 1110, the terminal unit 1120, and move the cable 1600 into the cavity of the mold.

At this time, in order to minimize the effect of the injection pressure, it is preferable that the discharge brush 1110 is not directly exposed to the injection pressure, and the heat shrink tube 1130 is disposed at least partially outside the cavity. That is, when insert injection is completed, a portion of the heat shrink tube 1130 protrudes from the top surface 1540 of the tip holder 1500 and is exposed to the outside, and the remaining portion may be buried inside the tip holder 1500. .

To this end, as shown in FIG. 12(d), the contact portion between the discharge brush 1110 and the terminal portion 1120 is disposed outside the cavity of the mold, and the contact portion between the cable 1600 and the terminal portion 1120 is at least It may be placed partially inside the cavity of the mold.

When the arrangement of the mold into the cavity is completed as described above, insert injection is performed and the tip holder 1500 is formed.

When the injection is completed, as shown, the contact portion between the cable 1600 and the terminal unit 1120 is at least partially buried inside the tip holder 1500. Accordingly, the secondary airtight state for these contact points is completed.

Therefore, by manufacturing through insert injection molding, the processing deviation of the assembly composed of the individual discharge brush 1110, the cable 1600, and the tip holder 1500 can be significantly reduced compared to the prior art, and the discharge tip 1100 and the cable ( 1600) can fundamentally block the penetration of moisture into the contact point.

In addition, since the contact between the discharge brush 1110 and the cable 1600 is firmly supported through the tip holder 1500 formed by insert injection molding, there is a gap between the discharge tip 1100 and the cable 1600 due to vibration and shock. The possibility of occurrence of a disconnection phenomenon can be remarkably reduced.

<High-voltage cable connection structure>

Referring to FIGS. 13 and 14 , an arrangement structure of the individual discharge tips 1100 and a connection structure of a high voltage cable 1600 for supplying voltage to the individual discharge tips 1100 will be described.

Referring to FIG. 13, an embodiment in which five discharge tips 1100 and tip holders 1500 are provided in a charge space formed by being divided into nine parts is shown. The present invention is not limited thereto, but will be described based on an embodiment in which five discharge tips 1100 and a tip holder 1500 are provided as shown.

For convenience, in order to distinguish the five discharge tips 1100 in order based on the illustrated state, they are referred to as first to fifth discharge tips 1110, 1120, 1130, 1140, and 1150, and the five tip holders 1500 ) will be referred to as first to fifth tip holders 1510, 1520, 1530, 1540, and 1550 in order to distinguish them.

As shown, the first to fifth discharge tips 1110, 1120, 1130, 1140, and 1150 are supported by the first to fifth tip holders 1510, 1520, 1530, 1540, and 1550, respectively. In the state, they are arranged spaced apart from each other on the same plane.

In this case, distances from the third discharge tip 1130 disposed at the center to the other discharge tips 1110, 1120, 1140, and 1150 may be set to be the same. Accordingly, ions can be uniformly discharged into the air from the discharge tips 1110, 1120, 1130, 1140, and 1150, and charging efficiency for dust particles can be maximized.

Meanwhile, as shown, the first to fifth cables 1621, 1622, 1623, 1624, and 1625 for supplying voltage to the first to fifth discharge tips 1110, 1120, 1130, 1140, and 1150, respectively. ) is connected, and as described above, the individual tip holders (1510, 1520, 1530, 1540, 1550) are protected inside.

In this case, the first to fifth cables 1621, 1622, 1623, 1624, and 1625 may be individually electrically connected to the high voltage supply unit 2200 described above. However, if configured to be individually connected, additional space must be secured to support and protect the individual cables 1621, 1622, 1623, 1624, and 1625, and the connection terminals are individually installed in the high voltage supply unit 2200. Problems that should arise. That is, the required quantity or length of cables increases, and the size of the frame 1400 supporting and protecting the cables 1621, 1622, 1623, 1624, and 1625 inevitably increases.

As a means to solve this problem, the charging device 100 for electric dust collection according to the present invention is provided with a cable holder 1800 for simplifying the connection structure of the high voltage cables 1621, 1622, 1623, 1624, 1625 do.

As shown in the enlarged view of FIG. 13 , the cable holder 1800 may have a rectangular parallelepiped shape in which the width in the left-right direction is greater than the height in the vertical direction and the thickness in the front-back direction.

Inside the cable holder 1800 having a rectangular parallelepiped shape, the other end of the main cable 1610, one end of which is electrically connected to the above-described high voltage supply unit 2200, is connected to the first to fifth cables 1621, 1622, and 1623 , 1624, 1625), the cable connection structure is buried.

That is, the cable holder 1800 serves to protect and maintain branch points or contacts between the main cable 1610 and the plurality of cables 1621 , 1622 , 1623 , 1624 , and 1625 .

More specifically, the other end of the main cable 1610, one end of which is electrically connected to the high voltage supply unit 2200, may pass through the left side 1804 of the cable holder 1800 and extend into the cable holder 1800. there is. As illustratively shown, the other end of the main cable 1610 may extend through the upper side of the left side 1804 of the cable holder 1800. In this way, only a single main cable 1610 is electrically connected to the high voltage supply unit 2200, so that the configuration of the connection unit of the high voltage supply unit 2200 can be simplified.

Meanwhile, the other end of the main cable 1610 extending into the cable holder 1800 may branch into first to fifth cables 1621 , 1622 , 1623 , 1624 , and 1625 .

Among them, the first to third cables 1621, 1622, and 1623 pass through the right side 1803 of the cable holder 1800 and protrude to the outside of the cable holder 1800, and the first discharge tip to the third discharge tip, respectively. It may extend toward tips 1110, 1120, and 1130. That is, the first to third cables supply voltage to the first to third discharge tips 1110, 1120, and 1130 disposed on the right side of the cable holder 1800 in the left-right direction (Le-Ri direction). The cables 1621 , 1622 , and 1623 are configured to extend through the right side 1803 of the cable holder 1800 .

Conversely, the fourth and fifth cables 1624 and 1625 supplying voltage to the fourth to fifth discharge tips 1140 and 1150 disposed on the left side of the cable holder 1800 are It can be configured to extend through left side 1804 .

At this time, in order to minimize the thickness of the cable holder 1800 in the front-back direction, the positions where the first to third cables 1621, 1622, and 1623 protrude are located on the right side 1803 of the cable holder 1800 in the vertical direction ( U-D direction), and the main cable 1610, the fourth cable, and the fifth cable 1624, 1625 protrude from the left side 1804 of the cable holder 1800 in the vertical direction (U-D direction). can be arranged side by side.

With this configuration, the same number of cables are disposed on the left side 1804 and the right side 1803 of the cable holder 1800, thereby minimizing and optimizing the height of the cable holder 1800 in the front-back direction, thereby minimizing and optimizing the charging module. The vertical height of (1000) can be minimized.

On the other hand, when the third to fifth discharge tips 1130, 1140, and 1150 are disposed on the left side of the cable holder 1800 based on the left-right direction (Le-Ri direction), the left side of the cable holder 1800 The third to fifth cables 1623, 1624, and 1625 are connected through the side 1804, and the main cable 1610 and the first cable and the second cable are connected through the right side 1803 of the cable holder 1800. (1621, 1622) can also be configured to be connected.

The cable holder 1800 may be manufactured through an insert molding method in a state in which the main cable 1610 is branched into the first to fifth cables 1621 , 1622 , 1623 , 1624 , and 1625 .

The structure in which the main cable 1610 branches to the first to fifth cables 1621, 1622, 1623, 1624, and 1625 and the insert injection method can be applied with configurations already known in the art, and detailed configurations Description is omitted.

Meanwhile, the upper surface 1801 and the lower surface 1802 of the cable holder 1800 may be accommodated in a state of being in surface contact with the upper outer frame 1411 and the lower outer frame 1421, respectively. At this time, in order to minimize the length of the main cable 1610, the cable holder 1800 is located adjacent to the cover module 2000 in which the high voltage supply unit 2200 is accommodated, and is positioned adjacent to the front end 1411d of the upper outer frame 1411 and the lower It can be accommodated at the front end of the outer frame 1421.

On the upper surface 1801 of the cable holder 1800, a fixing protrusion 1806 for fixing the cable holder 1800 protrudes upward (U-direction), and correspondingly, the upper outer frame 1411 An insertion hole through which the fixing protrusion 1806 extends may be formed in the distal end 1411d.

<Detailed configuration of cover module and high voltage supply>

Detailed configurations of the cover module 2000 and the high voltage supply unit 2200 according to an embodiment of the present invention will be described with reference to FIGS. 14 to 21 .

Referring to FIGS. 14 and 15 , as described above, the voltage supplied to the individual discharge tips 1110, 1120, 1130, 1140, and 1150 is applied through a single main cable 1610.

One end of the main cable 1610 is electrically connected to the PCB board 2230 so that voltage can be supplied from a high voltage supply unit 2200 to be described later, and the other end of the main cable 1610 is connected to first to fifth cables ( 1621, 1622, 1623, 1624, and 1625) and then electrically connected to individual discharge tips 1110, 1120, 1130, 1140, and 1150.

Through this, the wiring structure leading from the high voltage supply unit 2200 to the individual discharge tips 1110, 1120, 1130, 1140, and 1150 can be extremely simplified, and the length and quantity of the wiring can be minimized, thereby significantly reducing manufacturing costs. there is.

On the other hand, as shown, the insulation plate 2260 and the shielding plate 2270 of the high voltage supply unit 2200 have cutting parts 2261 and 2271 to allow one end of the main cable 1610 to pass toward the PCB substrate 2230, respectively. ) can be formed.

Illustratively, the cutting parts 2261 and 2271 may be formed at upper left corners of the insulating plate 2260 and the shielding plate 2270 .

The vertical position of these cutting parts 2261 and 2271 may be set substantially equal to the vertical position of the cable holder 1800 so that the length of the main cable 1610 can be minimized.

On the other hand, as shown, one end of the ground cable 1700 for grounding the aforementioned conductive plate 1200 through the cutting portions 2261 and 2271 together with one end of the main cable 1610 is connected to the PCB board 2230. can be electrically connected to A clip 1710 for connection to the conductive plate 1200 may be formed at the other end of the ground cable 1700 .

As shown in FIGS. 16 and 17 , individual parts constituting the high voltage supply unit 2200 are accommodated in the cover unit 2100 of the cover module 2000 .

More specifically, the high voltage supply unit 2200 may be installed in the accommodating unit 2116 formed inside the cover frame 2110 constituting the cover unit 2100 .

The rear surface of the accommodating portion 2116 facing the frame 1400 of the charging module 1000 is in an open state. As described below, the high voltage supply unit 2200 may be assembled to the cover unit 2100 in such a way that the high voltage supply unit 2200 is inserted or introduced into the housing unit 2116 through the open rear surface.

Therefore, the exposed portion of the high voltage supply unit 2200 through the front surface 2111 of the cover unit 2100 can be minimized, and damage or damage to the high voltage supply unit 2200 due to external shock or user's negligence can be minimized. .

Meanwhile, the accommodating part 2116 protrudes at least partially when viewed toward the front surface 2111 of the cover part 2100, in order to secure an accommodating space 2117 in which the high voltage supply part 2200 is installed. A box-shaped protruding surface 2112 is formed.

That is, the front portion of the accommodating portion 2116 includes a protruding surface 2112 protruding in a direction away from the frame 1400 of the charging module 1000, and the high voltage supply unit 2200 includes the protruding surface 2112 and the frame 1400. ) can be understood as being placed between. On the other hand, when viewed from the rear, the protruding surface 2112 can also be seen as a concave portion accommodating the high voltage supply unit 2200.

Through this, when viewed from the rear of the cover part 2100, the high voltage supply part 2200 can minimize the protruding part from the rear surface 2114 of the cover frame 2110 toward the charging module 1000, and charging The high voltage supply unit 2200 can be effectively accommodated without reducing the size of the module 1000.

Meanwhile, the cover part 2100 includes at least one terminal 2113a extending through the protruding surface 2112 of the accommodating part 2116 . The terminal 2113a serves to transfer power from an external power source or a control signal from a control unit of a vehicle to a PCB board 2230 to be described later.

To this end, one end of the at least one terminal 2113a protrudes to the outside through the front surface of the accommodating part 2116, and the other end of the at least one terminal 2113a penetrates through the rear surface of the accommodating part 2116 and is accommodated. It protrudes into space 2117.

As will be described later, one end of the at least one terminal 2113a extends into the main connector 2113 formed on the front surface of the accommodating portion 2116, and the other end of the at least one terminal 2113a extends into the PCB board 2230. ) is electrically connected to

16 and below, an embodiment in which three terminals 2113a having the same shape and spaced apart from each other at a predetermined interval is illustratively illustrated. The present invention is not limited thereto, but for convenience, an embodiment in which three terminals 2113a are embedded in the cover part 2100 will be described.

The cover part 2100 may be manufactured through plastic injection molding. At this time, the three terminals 2113a may be embedded in the cover part 2100 in such a way that insert injection proceeds in a state in which the three terminals 2113a are disposed inside the mold in advance during injection molding of the cover part 2100 .

A main connector 2113, preferably a female connector, is provided on one side of the protruding surface 2112, illustratively, on a side surface of the protruding surface 2112 so that external power can be supplied or a control signal can be input. At this time, the main connector 2113 may be integrally molded during injection molding of the cover part 2100 so that one end of the three terminals 2113a protrudes into the main connector 2113 .

In order to prevent excessive increase in the size of the cover module 2000 in the front-back direction, the main connector 2113 may protrude substantially in the lateral direction, as shown.

Meanwhile, both end portions of the cover frame 2110 are provided with retainers 2120 and protrusions 2130, respectively. The cover module 2000 may be detachably fixed to an installation target, preferably the dust collecting installation unit 13 of the vehicle air conditioner 1, by using the retainer 2120 and the protrusion 2130.

Illustratively, the retainer 2120 may be configured such that the grip 2121 to which the user's action force is applied is formed at the free end, and the stopper 2122 is formed between the fixed end and the free end. Any means already known in the art may be applied to the configuration of the retainer 2120, and a detailed description thereof will be omitted below.

Meanwhile, on the rear surface 2114 of the cover frame 2110, a pair of main bosses 2115 for fastening the frame 1400 of the charging module 1000, more specifically, the upper frame 1410 of the charging module 1000 It may be disposed adjacent to both end portions of the cover frame 2110 avoiding the housing portion 2116 . That is, a pair of main bosses 2115 may be formed on both sides of the accommodating portion 2116 .

In addition, a plurality of sub-bosses 2118 for fastening the high voltage supply unit 2200 may be formed on the rear surface 2114 of the cover frame 2110 . As shown, the high voltage supply unit 2200 may be exemplarily fastened to the accommodating part 2116 of the cover frame using a total of 7 first bolts b1, and correspondingly, a total of 7 sub-bosses 2118 may be formed around the high voltage supply unit 2200.

On the other hand, in the high voltage supply unit 2200, a first conductive case 2210, an insulating second case 2220 accommodated inside the first case 2210, and a circuit component 2240 are mounted. A PCB substrate 2230 accommodated inside the case 2220, an insulation plate 2260 covering the PCB substrate 2230, and an electromagnetic wave disposed behind the insulation plate 2260 and generated from the PCB substrate 2230. It includes a shielding plate 2270 blocking the.

The first case 2210 is inserted into the accommodating part 2116 of the cover part 2100 and is supported by directly contacting the inner surface of the accommodating part 2116, and forms the outer body of the high voltage supply part 2200.

The first case 2210 may be formed by processing a metal plate into a box shape with an open rear surface to block electromagnetic waves generated from the PCB substrate 2230 from being emitted to the outside. The inner space 2211 of the first case 2210 accommodates a second case 2220 and a PCB substrate 2230 to be described later.

Meanwhile, a portion of the front surface of the first case 2210 toward the accommodating portion 2116 is opened to form a first through hole 2212, and through the first through hole 2212, the terminal 2113a described above is connected. The other end and the third bolt b3 for fixing the PCB substrate 2230 may extend through.

In addition, the lower and upper surfaces of the first case 2210 may be bent with bolt fastening portions 2213 having through-holes, respectively, and the first bolt b1 passes through the through-holes to the cover part 2100. It can be fastened to the sub-boss 2118 of.

At this time, the first bolt (b1) for fastening the bolt fastening part 2213 formed on the upper side to the cover part 2100 is connected to the other end of the case grounding cable 2290 for grounding the first case 2210. The provided ring-shaped terminals 2291 may be fastened together. As shown, one end of the case ground cable 2290 is electrically connected to the PCB board 2230.

A notch-shaped cutting portion 2214 may be formed on the left side of the first case 2210 so that a bolt fastening portion 2223 of the second case 2220 to be described later may be inserted. The cutting part 2214 may have a vertical width corresponding to the vertical width of the bolt fastening part 2223 of the second case 2220 .

The second case 2220 is inserted through the open rear surface of the first case 2210 and disposed in the inner space 2211 of the first case 2210 .

In order to insulate the PCB substrate 2230 disposed in the inner space 2221 of the second case 2220 from the first case 2210, the second case 2220 is made of an insulating plastic material and has a box shape with one side open. It can be formed by processing.

A plurality of guide ribs 2222 for supporting the PCB substrate 2230 may be provided on an inner surface of the second case 2220 . The plurality of guide ribs 2222 protrude from the inner surface to have a predetermined height toward the inner space 2221, and may extend in a straight line from the front to the rear in parallel to the direction in which the PCB substrate 2230 is inserted. .

The aforementioned bolt fastening part 2223 may be provided on the left outer surface of the second case 2220 . In the process of inserting the second case 2220 into the inner space 2211 of the first case 2210, the bolt fastening part 2223 enters the cutting part 2214 of the first case 2210.

Meanwhile, at least one cable rib 2224 for supporting the case ground cable 2290 may be provided on an upper surface of the second case 2220 .

The cable rib 2224 may have a hook shape protruding from the upper side of the second case 2220 to support between one end and the other end of the case ground cable 2290 .

16 and 17 illustratively shows an embodiment in which two cable ribs 2224 are integrally formed on the upper side of the second case 2220, but the present invention is not limited thereto, and the cable rib 2224 ) may be adjusted according to the length and extension direction of the case ground cable 2290.

Meanwhile, a part of the front surface of the second case 2220 toward the accommodating portion 2116 is opened to form a second through hole 2225, and through the second through hole 2225, the terminal 2113a described above is formed. The other end may be extended through. In addition, a bolt hole 2225 through which a third bolt b3 for fixing the PCB substrate 2230 extends may be formed around the second through hole 2225 .

The PCB substrate 2230 is a component on which a plurality of circuit components 2240 are mounted, and any substrate known in the art may be applied. However, in order to reduce the thickness of the high voltage supply unit 2200 in the front-back direction, the length of the PCB substrate 2230 in the left-right direction may be configured to have a much larger dimension than the width in the vertical direction.

The PCB substrate 2230 is introduced into the inner space 2221 through the open rear surface of the second case 2220, and may be electrically connected to the terminal 2113a described above during introduction. Pinholes 2231 having a number corresponding to the number of terminals 2113a may be formed in the PCB substrate 2230, and bolt holes through which third bolts b3 pass through and extend may be formed around the pinholes 2231. It can be.

In addition, one end of the above-described main cable 1610 and one end of the ground cable 1700 may be electrically connected to the PCB substrate 2230, and one end of the case ground cable 2290 may be electrically connected.

Meanwhile, in order to prevent damage to the circuit component 2240 due to penetration of moisture and other foreign substances, after the PCB substrate 2230 is placed and fixed inside the second case 2220, epoxy resin is placed around the PCB substrate 2230. An insulating resin 2250 such as the like may be injected.

The insulating plate 2260 serves to cover the open rear surface of the second case 2220 and at the same time serves to insulate the rear surface after the PCB substrate 2230 is installed on the second case 2220 .

Like the second case 2220, the insulating plate 2260 may be formed by processing an insulating plastic material into a plate shape.

The insulating plate 2260 may be formed to have a shape corresponding to the open rear surface of the second case 2220 . In this case, the above-described first cutting portion 2261 may be formed at an upper left corner of the insulation plate 2260, and a cable notch 2262 through which a case ground cable passes may be formed at an upper edge.

The shielding plate 2270 is disposed behind the insulating plate 2260 and serves to block electromagnetic waves emitted from the PCB substrate 2230 toward the rear.

The shielding plate 2270 may be formed in a plate shape having a metal material to have substantially the same shape as the insulating plate 2260, and cover the entire rear surface of the insulating plate 2260.

Meanwhile, the shielding plate 2270 may be formed to have a shape corresponding to the open rear surface of the second case 2220 . At this time, like the insulation plate 2260, the above-described second cutting portion 2271 may be formed at the upper left corner of the shield plate 2270, and the upper edge has a cable notch through which the case ground cable 2290 passes. (2273) may be formed.

Meanwhile, a plurality of bolt fastening parts 2272 may be integrally formed at the upper and lower edges of the shield plate 2270 .

16 and 17 illustratively shows an embodiment in which five bolt fastening parts 2272 are integrally formed on the top edge and the bottom edge of the shield plate 2270, but the present invention is not limited thereto, and the bolt The number and location of the fastening parts 2272 may be adjusted according to the size of the high voltage supply part 2200.

Hereinafter, a process of assembling the high voltage supply unit 2200 will be described with reference to FIGS. 18 to 21 .

First, as shown in FIG. 18 , the first case 2210 is inserted into the receiving portion 2116 formed on the rear surface 2114 of the cover frame 2110 .

When the insertion of the first case 2210 is completed, the second case 2220 is then inserted into the first case 2210 through the open rear surface of the first case 2210 .

At this time, the bolt fastening part 2223 of the second case 2220 is fixed to the sub boss 2118 formed on the rear surface 2114 of the cover part 2100 using the first bolt b1 fixing the side surface. can

When the fixing of the second case 2220 is completed, as shown in FIG. 19 , the PCB substrate 2230 is inserted through the open rear surface of the second case 2220 .

At this time, as one end of the terminal 2113a is inserted into the pinhole 2231 of the PCB substrate 2230, the PCB substrate 2230 and one end of the terminal 2113a are electrically connected. When the connection of the terminal 2113a is completed, the PCB substrate 2230 is fixed by fastening the third bolt b3 at two locations.

When the fixing of the PCB board 2230 is completed, the ring-shaped terminal 2291 provided at one end of the case ground cable 2290 is removed together with the bolt fastening portion 2213 provided on the upper side of the first case 2210. Fasten to the sub-boss 2118 of the cover part 2100 using 1 bolt (b1). Through this, the first case 2210 is electrically connected to the case ground cable 2290 . Meanwhile, before the ring-shaped terminal 2291 is fastened, the other end of the case ground cable 2290 is previously connected to and fixed to the PCB board 2230.

Meanwhile, FIG. 19 shows an embodiment in which the PCB substrate 2230 is fixed to the second case 2220 in a state in which the circuit component 2240 is previously mounted on the PCB substrate 2230, but unlike this, the PCB substrate 2230 After first fixing the second case 2220, assembly may proceed in a manner in which a plurality of circuit components 2240 are mounted on the PCB substrate 2230. The present invention is not limited thereto, but hereinafter, for convenience, A plurality of circuit components 2240 will be described based on an embodiment in which a plurality of circuit components 2240 are pre-mounted on a PCB board 2230 and then assembled.

When the fixing of the PCB substrate 2230 is completed, as shown in FIG. 20, an insulating resin 2250 such as epoxy resin is injected and cured around the PCB substrate 2230 and the plurality of circuit components 2240.

At this time, it is preferable that the injected insulating resin 2250 is injected so that all of the plurality of circuit components 2240 can be completely immersed.

Through the injection of the insulating resin 2250 as described above, damage to the circuit component 2240 due to penetration of moisture and other foreign substances can be effectively prevented.

After or before the curing of the insulating resin 2250 is complete, the insulating plate 2260 is inserted into the open back surface of the second case 2220 and disposed thereon.

When the positioning and arrangement of the insulating plate 2260 is completed, the shielding plate 2270 is placed behind the insulating plate 2260 and attached to the back of the cover part 2100 using the five first bolts b1. fix it

When the fixing of the shielding plate 2270 is completed as described above, as shown in FIG. 21 , the assembly of the high voltage supply unit 2200 is completed.

Thereafter, one end of the main cable 1610 of the charging module 1000 and one end of the ground cable 1700 are connected to the first cutting part 2261 of the insulating plate 2260 and the second cutting part of the shielding plate 2270 ( 2271) and electrically connected to the PCB board 2230. Although not shown, connectors (not shown) for electrical connection to the PCB board 2230 may be provided at one end of the main cable 1610 and one end of the ground cable 1700 .

Next, by fastening the main boss 2115 provided on the rear surface of the cover part 2100 and the connection part 1411b formed on the upper frame 1410 of the charging module through the second bolt b2, the electric dust collecting charging device ( 1000) may be completed.

However, the illustrated embodiment shows a configuration in which the cover module 2000 and the frame 1400 of the charging module 1000 are connected to each other so that relative movement is impossible, but unlike this, the frame 1400 of the charging module or the cover module It is also possible to apply a hinge structure to at least one of (2000). Through this, the angle between the frame 1400 of the charging module and the cover module 2000 can be changed.

Therefore, in a state in which the angle between the frame 1400 of the charging module and the cover module 2000 is fixed, the cover module 2000 is pivoted and folded even in a vehicle having a structure in which it is not easy to withdraw or insert into the part to be installed. In this way, the assembly of the charging module 1000 and the cover module 2000 can be easily withdrawn or inserted.

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

100: charging device for electric dust collection 1000: charging module
1100: discharge tip 1200: conductive plate
1400: frame 1500: tip holder
1600: high voltage cable 1800: cable holder
2000: cover module 2100: cover part
2200: high voltage supply unit

Claims (17)

A charging device for electric dust collection including a charging module that generates ions emitted into the flowing air,
The charging module,
at least one discharge tip discharging the ions in a direction opposite to the flow direction of the air;
a conductive plate generating a potential difference with the discharge tip;
a frame forming an outer body and in which the discharge tip and the conductive plate are installed;
a high voltage supply unit disposed adjacent to the frame and generating a voltage to be supplied to the discharge tip; and
a cover module disposed in front of the charging module and coupled to the frame;
including,
The high voltage supply unit is a charging device for electric dust collection accommodated in the cover module.
delete In paragraph 1,
The cover module includes an accommodating portion in which an accommodating space in which the high voltage supply unit is installed is formed and a rear surface facing the frame is opened.
In paragraph 3,
The front surface of the receiving portion protrudes in a direction away from the frame,
The high voltage supply unit is disposed between the front surface and the frame.
In paragraph 3,
The cover module includes at least one terminal protruding from the front surface of the accommodating part and protruding into the accommodating space through the other end through the rear surface of the accommodating part.
In paragraph 5,
The cover module further includes a connector disposed on the front surface of the accommodating part,
One end of the at least one terminal is a charging device for electric dust collection extending into the inside of the connector.
In paragraph 6,
The cover module is a charging device for electric dust collection formed by insert injection of the at least one terminal.
In paragraph 6,
The connector is a charging device for electric dust collection that is integrally formed with the cover module.
In paragraph 5,
The high voltage supply unit,
a conductive first case disposed in the accommodating part and having an open rear surface;
a second insulating case inserted into the first case through the open rear surface of the first case and having an open rear surface; and
a PCB board on which a plurality of circuit components are mounted and inserted through the open rear surface of the second case;
including,
Wherein the PCB board is electrically connected to the other end of the at least one terminal.
In paragraph 9,
The first case has a first through hole through which the other end of the at least one terminal extends,
The second case is a charging device for electric dust collection having a second through hole extending through the other end of the at least one terminal.
In paragraph 9,
The high voltage supply unit further comprises a case ground cable having one end electrically connected to the PCB board and the other end electrically connected to the first case.
In paragraph 11,
The second case, electric dust collection charging device including a cable rib for fixing the case ground cable.
In paragraph 9,
The high voltage supply unit,
an insulating plate disposed on the open rear surface of the second case; and
a shielding plate disposed behind the insulating plate;
A charging device for electric dust collection further comprising a.
In paragraph 13,
The charging module further comprises a high voltage cable electrically connecting the discharge tip and the PCB board.
In paragraph 14,
The high voltage cable includes a single main cable having one end electrically connected to the PCB board.
In paragraph 15,
The insulation plate has a first cutting part forming a passage through which one end of the main cable passes,
The shielding plate is formed at a position corresponding to the first cutting part and has a second cutting part forming a passage through which one end of the main cable passes.
In paragraph 16,
The charging module further includes a ground cable having one end electrically connected to the PCB board and the other end electrically connected to the conductive plate,
One end of the ground cable passes through the first cutting part and the second cutting part and is connected to the PCB board.

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