Inverter device with dust collecting unit

Abstract

Provided is an inverter device having a dust collecting unit. An inverter device having a dust collecting unit according to an embodiment of the present invention can include a housing having an air inflow inlet formed on one side and an air outflow outlet formed on the other side; an inverter electric element disposed inside the housing; a first suction member disposed inside the housing; and a dust collecting unit disposed on one side of the air inflow inlet.

Description

Technical Field

[0001] The present invention relates to an inverter device, and more particularly to an inverter device having a dust collection unit for removing dust contained in the air used when cooling electrical components for the inverter. Background Technology

[0002] Typically, an inverter is a static power conversion device that converts direct current (DC) to alternating current (AC), also known as an inverter. Conversely, a converter or rectifier is a device that converts alternating current (AC) to direct current (DC).

[0003] Recently, there has been a trend to include AC-to-DC converter functionality and DC-to-AC inverter functionality within inverters.

[0004] In order to convert electricity, inverters are equipped with power supply modules that provide power, filters that are responsible for rectification, capacitors that have energy storage functions, and control units that are responsible for control.

[0005] Because a considerable amount of heat is generated by the components in such inverters during operation, air-cooled cooling structures are used in the case of ordinary inverters to dissipate this heat.

[0006] That is, air inlets and air outlets are provided on one side and the other side of the housing in which the inverter components are arranged. A fan is used to allow external air to flow into the housing through the air inlets, thereby cooling the inverter components.

[0007] At this time, because the outside air contains dust, there is a problem that dust accumulates inside the inverter casing, causing inverter failure.

[0008] Typically, a grid is installed on the air inlet side to prevent external foreign matter from entering that may interfere with the operation of the fan. However, such a grid has the limitation of making it difficult to prevent fine dust from flowing into the inverter housing.

[0009] In addition, when a filter is installed on the air inlet side to remove fine dust, there is a limitation that the cooling efficiency will decrease because the air is difficult to flow smoothly.

[0010] Therefore, the necessity of inverter devices that can prevent fine dust from flowing into the inverter housing is becoming a matter of social concern. Summary of the Invention

[0011] The problem that the invention aims to solve

[0012] The purpose of this invention is to provide an inverter device with a dust collection unit to prevent fine dust from flowing into the housing.

[0013] The purpose of this invention is to provide an inverter device with a dust collection unit that can prevent the attracted dust from flowing back into the housing by collecting the dust attracted by the dust collection unit.

[0014] The problems to be solved by the present invention are not limited to those described above, and those skilled in the art can clearly understand other problems not mentioned in the following description.

[0015] Technical solutions to the problem

[0016] To address the aforementioned problems, an inverter device with a dust collection unit according to one aspect of the present invention may include: a housing having an air inlet on one side and an air outlet on the other side; inverter electrical components disposed inside the housing; a first suction member disposed inside the housing to generate an airflow that allows external air to flow into the housing via the air inlet and out of the air outlet to cool the electrical components; and a dust collection unit disposed on one side of the air inlet to remove dust contained in the air flowing in through the air inlet, the dust collection unit including: a first discharge electrode, negatively charged; a dust collection electrode, positively charged and disposed spaced apart from the first discharge electrode; an airflow guide extending downward from the periphery of the air inlet to allow external air to flow into the air inlet through the first discharge electrode and the dust collection electrode; and a dust receiver disposed below the dust collection electrode to collect the dust attracted to the dust collection electrode.

[0017] At this time, the inverter device with a dust collection unit may include a power supply unit that provides power to the dust collection unit, wherein the first discharge electrode is connected to the negative terminal of the power supply unit, and the dust collection electrode is connected to the positive terminal of the power supply unit.

[0018] At this time, the power supply unit can be connected to the inverter electrical components and the first suction member, and provide power to the inverter electrical components and the first suction member.

[0019] At this time, the first discharge electrode can be formed by extending along the extension direction of the airflow guide, and the dust collection electrode can be separated from the side of the first discharge electrode and disposed on the inner peripheral surface of the airflow guide.

[0020] At this time, the inverter device with a dust collection unit may include one or more second discharge electrodes, which are energized with the first discharge electrode and extend radially from the side of the first discharge electrode.

[0021] At this time, the inverter device with the dust collection unit may include one or more third discharge electrodes, which are energized with the second discharge electrode to form a ring shape and are supported by the second discharge electrode.

[0022] At this time, the dust receiver can be formed by extending from the lower edge of the airflow guide to the upper side, so as to form a space for collecting the dust on the inner circumferential surface of the lower end of the airflow guide.

[0023] At this time, the first discharge electrode and the dust collection electrode can be disposed at the central part of the airflow guide in the longitudinal direction, and the airflow guide can be formed such that its cross-sectional area increases as it approaches the two ends from the central part.

[0024] At this time, the inverter device with a dust collection unit may include a dust collection unit connected to the dust receiver to collect the dust collected by the dust receiver.

[0025] At this time, the dust collection unit may include: a dust container in which the dust is collected; a dust discharge pipe that connects the dust container and the dust receiver in a fluid communication manner; and a second suction member that forms a flow to move the dust from the dust receiver to the container.

[0026] At this time, the inverter device with a dust collection unit may include a centrifugal separation component, which is disposed at one end of the dust discharge pipe and connected to the dust discharge pipe and the dust container, so as to separate dust from the air discharged from the dust discharge pipe and collect the dust in the dust container.

[0027] At this time, the centrifugal separation component may be provided with: a cylindrical body; an air outlet formed on the upper end face of the body and connected to the second suction component; a dust outlet formed on the lower end face of the body and connected to the dust container; and a dust inlet formed on the side of the body and connected to the dust discharge pipe. The dust discharge pipe is connected to the dust inlet such that the direction from the dust inlet toward the center of the body and the direction of dust discharge have a predetermined angle, so that the discharged dust rotates along the inner circumferential surface of the body.

[0028] At this point, the cross-sectional area of ​​the lower end of the main body can be smaller as it gets closer to the lower side.

[0029] Invention Effects

[0030] An inverter device with a dust collection unit according to an embodiment of the present invention is able to remove dust contained in the air flowing in from the outside for cooling components disposed inside the housing.

[0031] An inverter device with a dust collection unit according to an embodiment of the present invention can improve the durability of the inverter device by preventing dust from flowing into the interior of the inverter device.

[0032] In addition, an inverter device with a dust collection unit according to an embodiment of the present invention can use dust-removed air to cool electrical components that have risen in temperature, thereby improving cooling efficiency.

[0033] The effects of this invention are not limited to those described herein, but should be understood to include all effects that can be inferred from the composition of the invention as described in the description or claims. Attached Figure Description

[0034] Figure 1 This is a perspective view of an inverter device with a dust collection unit according to an embodiment of the present invention, viewed from one direction.

[0035] Figure 2 This is a perspective view of an inverter device with a dust collection unit according to an embodiment of the present invention, viewed from another direction.

[0036] Figure 3 This is a perspective view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention.

[0037] Figure 4 This is a perspective view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention, with the airflow guide removed.

[0038] Figure 5 This is a cross-sectional view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention.

[0039] Figure 6 This is a bottom view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention.

[0040] Figure 7 This is a perspective view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention.

[0041] Figure 8 It is an enlarged edge Figure 7 The cross-section cut along line AA′ is shown, and a cross-sectional view of the dust collection unit is presented. Detailed Implementation

[0042] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, enabling those skilled in the art to readily implement them. The present invention can be implemented in various different forms and is not limited to the embodiments described herein.

[0043] To clearly illustrate the invention, parts unrelated to the description have been omitted from the drawings, and the same or similar reference numerals are used throughout the specification. To clearly express the structural features in the drawings, thickness or size is exaggerated; the thickness or size of the structure shown in the drawings does not represent the actual thickness or size.

[0044] The following will Figure 1 The X-axis direction is defined as the upward direction, the Y-axis direction as the right direction, and the Z-axis direction as the forward direction. Therefore, the opposite direction of the X-axis direction is the downward direction, the opposite direction of the Y-axis direction is the left direction, and the opposite direction of the Z-axis direction is the rear direction.

[0045] The present invention provides an inverter device having a cooling structure that circulates external air into the housing to cool electrical components for the inverter disposed inside the housing, the inverter device removing dust contained in the external air before the external air flows into the housing.

[0046] Figure 1 This is a perspective view of an inverter device with a dust collection unit according to an embodiment of the present invention, viewed from one direction. Figure 2 This is a perspective view of an inverter device with a dust collection unit according to an embodiment of the present invention, viewed from another direction.

[0047] Reference Figure 1 An inverter device 1 with a dust collection unit according to an embodiment of the present invention includes a housing 10, inverter electrical components (not shown), a first suction member 30, and a dust collection unit 40.

[0048] The housing 10 is a component used to internally protect the elements constituting the inverter, and its shape is not limited. As an example, the housing can be formed as follows: Figure 1 The box shape shown.

[0049] Inside the housing 10 are arranged inverter electrical components (not shown). The inverter electrical components (not shown) are necessary components for converting DC power to AC power through the operation of the inverter device 1. For example, the inverter electrical components (not shown) can be capacitors, coils, etc., but are not limited to these.

[0050] During the operation of inverter device 1, heat is generated in the inverter electrical components (not shown). As described above, external air is used to cool the heat generated in the inverter electrical components (not shown).

[0051] Therefore, such as Figure 1 and Figure 2 As shown, an air inlet 12 is formed on the lower side of the housing 10 to allow external air to flow in. The air flowing in through the air inlet 12 cools the electrical components for the inverter (not shown), and the air that has cooled the electrical components for the inverter (not shown) flows out through the air outlet 14 formed on the upper side of the housing 10.

[0052] At this time, as Figure 1 As shown, an inverter device 1 with a dust collection unit according to an embodiment of the present invention may be provided with a first suction member 30.

[0053] The first intake member 30 generates an airflow that allows external air to flow into the housing 10 through the air inlet 12 and then out again through the air outlet 14.

[0054] For example, the first intake member 30 may be a fan as a component for generating airflow, but is not limited to this.

[0055] The first intake member 30 allows relatively cool outside air to flow in through the air inlet 12, and the flowing air is heated as it passes through the inverter electrical components (not shown). The first intake member 30 continuously supplies cool outside air to the interior, while the heated air inside the housing 10 flows out to the outside through the air outlet 14. Therefore, the first intake member 30 continuously transfers heat from inside the inverter unit 1 to the outside.

[0056] At this time, as the first intake member 30 continues to circulate air, dust 2 in the air will also flow into the housing 10. The dust 2 that flows in accumulates inside the housing 10, which not only reduces the cooling efficiency of the electrical components (not shown) for the inverter, but also causes the inverter device 1 to malfunction.

[0057] Therefore, as Figure 1 As shown, in order to remove dust 2 contained in the outside air flowing in from the air inlet 12, a dust collection unit 40 is provided on the lower side of the air inlet 12.

[0058] The dust collection unit 40 removes dust 2 that flows in from the outside by giving it a negative charge. (See below for reference.) Figures 3 to 6 This will be explained in detail.

[0059] Figure 3 This is a perspective view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention. Figure 4 This is a perspective view of the airflow guide of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention. Figure 5This is a cross-sectional view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention. Figure 6 This is a bottom view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention.

[0060] Reference Figure 3 and Figure 4 According to an embodiment of the present invention, the dust collection unit 40 of the inverter device 1 with a dust collection unit includes a power supply unit 410, a first discharge electrode 420, a dust collection electrode 430, an airflow guide 440, and a dust receiver 450.

[0061] The power supply unit 410 provides power to the dust collection unit 40, enabling the dust collection unit 40 to collect dust 2 using electricity.

[0062] The power supply unit 410 is a component used to provide power to the dust collection unit 40, and may be, for example, a battery. The type of power supply unit 410 described above is not limited; any known product can be used as long as it is a component capable of providing power to the dust collection unit 40. Alternatively, the power supply unit 410 may be integrated with a power supply device (not shown) that provides power to the inverter device 1.

[0063] The first discharge electrode 420 is made of a conductor to be energized by the power supply unit 410 and is connected to the negative electrode of the power supply unit 410. Thus, as... Figure 5 As shown, a negative charge is disposed on the surface of the first discharge electrode 420.

[0064] The first discharge electrode 420 is disposed below the air inlet 12, allowing air flowing into the air inlet 12 to pass through it. Thus, when dust particles 2 in the air come into contact with the surface of the first discharge electrode 420, they become negatively charged.

[0065] At this time, as Figure 4 As shown, from the viewpoint that the air flowing in through the air inlet 12 can have maximum contact with the first discharge electrode 420, it is preferable that the first discharge electrode 420 is disposed on the lower side of the center of the opening surface of the air inlet 12.

[0066] The shape of the first discharge electrode 420 is not limited. However, as Figure 4 As shown, preferably, it extends long along the direction of air inflow, i.e., upward and has a circular cross-section, so as not to obstruct the flow of air.

[0067] Similar to the first discharge electrode 420, the dust collecting electrode 430 is also made of a conductor to be energized by the power supply unit 410, and is connected to the positive electrode of the power supply unit 410 to attract negatively charged dust. Thus, as... Figure 5 As shown, a positive charge is disposed on the surface of the dust collection electrode 430.

[0068] As a result, the dust 2, which is negatively charged due to the first discharge electrode 420, is subjected to an electric force on the dust collection electrode 430.

[0069] At this time, the dust collecting electrode 430 is positioned side-separated from the first discharge electrode 420. Thus, as... Figure 5 As shown, dust 2 is drawn from the first discharge electrode 420 to the dust collection electrode 430.

[0070] like Figure 4 As shown, in order to effectively attract charged dust 2 from the first discharge electrode 420 to the dust collection electrode 430, preferably, the dust collection electrode 430 is formed to surround the first discharge electrode 420 in a state that is spaced apart from the side of the first discharge electrode 420.

[0071] In this case, preferably, the length of the dust collecting electrode 430 in the vertical direction is greater than or equal to the length of the first discharge electrode 420.

[0072] On the other hand, in order to ensure that the external air drawn in through the first suction member 30 must pass through the first discharge electrode 420 and the dust collection electrode 430 before flowing into the air inlet 12, an airflow guide 440 is provided on the lower side of the air inlet 12. (Ref) Figure 1 )

[0073] like Figure 3 As shown, the airflow guide 440 extends downward from the periphery of the airflow inlet 12 and is formed into a cylindrical shape. As a result, external air moves along the airflow guide 440 and comes into contact with the first discharge electrode 420 and the dust collection electrode 430 before flowing into the interior of the housing 10 through the airflow inlet 12.

[0074] At this time, the cross-sectional shape of the airflow guide 440 can be as follows: Figure 3 The shape shown is circular, but it is not limited to this. For example, it can be formed into various shapes such as triangles and rectangles.

[0075] At this time, as Figure 4 As shown, a dust collection electrode 430 is disposed at the center of the airflow guide 440 along its length, and the dust collection electrode 430 is configured such that its outer peripheral surface abuts against the inner peripheral surface of the airflow guide 440.

[0076] Preferably, the airflow guide 440 is formed of an insulator so as not to be energized with the first discharge electrode 420 and the dust collection electrode 430. This not only prevents dust 2 from being guided to unexpected locations, but also prevents the risk of an accident in which a user is energized through the airflow guide 440.

[0077] On the other hand, such as Figure 3As shown, preferably, the lower end 444 of the airflow guide 440 is formed with a larger cross-sectional area closer to the lower side. This allows not only a large amount of external air to be drawn in, but also to be guided to the first discharge electrode 420 and the dust collection electrode 430. Therefore, the probability of dust particles 2 in the air coming into contact with the first discharge electrode 420 and becoming charged can be increased, thereby further improving the dust removal rate of the dust collection unit 40.

[0078] At this time, as Figure 3 As shown, preferably, the upper end 442 of the airflow guide 440 is also formed such that its cross-sectional area is larger the closer it is to the upper side. This is to match the cross-sectional area of ​​the airflow concentrated on the first discharge electrode 420 and the dust collection electrode 430 with the size of the airflow inlet 12.

[0079] Therefore, preferably, the cross-sectional area of ​​the upper end 442 of the airflow guide 440 is the same as the cross-sectional area of ​​the airflow inlet 12.

[0080] The structure in which the airflow guide 440 is integrated with the airflow inlet 12 is not limited. For example, such as... Figure 3 As shown, a plate member 446 can be formed at the upper end of the airflow guide 440, and screws are used to connect the plate member 446 and the lower end face of the housing 10.

[0081] At this time, in order to collect the dust 2 that is attracted to the inner peripheral surface of the dust collecting electrode 430 by electricity, the dust receiver 450 is disposed on the inner peripheral surface of the lower end 444 of the airflow guide 440. (Ref) Figure 2 )

[0082] The dust receiver 450 is formed to extend upward from the lower edge of the airflow guide 440 so as to collect the dust 2 when the dust 2 captured by the dust collection electrode 430 moves in the direction of its own weight due to gravity.

[0083] More specifically, such as Figure 5 As shown, the dust receiver 450 has an opening on the lower side of the dust collecting electrode 430. At this time, the dust receiver 450 is configured to be separated from the inner surface of the lower end portion 444 of the airflow guide 440 and the lower side is blocked to form a space for capturing the dust 2 flowing in through the opening.

[0084] At this time, as Figure 5 As shown, preferably, the inner side of the airflow guide 440 of the dust receiver 450 is parallel to the airflow guide 440, so as to guide air to flow along the inner side of the airflow guide 440 of the dust receiver 450.

[0085] To prevent dust 2 attracted to the dust collection electrode 430 from flowing back into the air inlet 12 via the first suction member 30, a blocking member 480 may be provided on the upper side of the dust collection electrode 430.

[0086] like Figure 5 As shown, the blocking member 480 can be formed symmetrically with the dust receiver 450. As a result, the airflow is obstructed on the upper side of the dust collecting electrode 430, and the dust 2 attracted to the dust collecting electrode 430 will not move to the airflow inlet 12.

[0087] However, the shape of the blocking member 480 is not always symmetrical to the dust receiver 450. As long as it can obstruct the airflow generated by the first suction member 30 on the upper side of the dust collecting electrode 430, the embodiments are not limited. For example, although not shown in the figures, it can be formed by protruding from the inner periphery of the airflow guide 440 toward the central axis of the airflow guide 440 in the longitudinal direction on the upper side of the dust collecting electrode 430.

[0088] On the other hand, refer to Figure 4 In one embodiment of the present invention, the dust collection unit 40 of the inverter device 1 with a dust collection unit may be provided with a second discharge electrode 460 and a third discharge electrode 470.

[0089] The second discharge electrode 460, together with the first discharge electrode 420, causes the dust 2 to carry a negative charge. The second discharge electrode 460 is provided to increase the contact area between the air and the discharge electrode so that the dust 2 can easily become charged.

[0090] Therefore, the second discharge electrode 460 is made of a conductor and is connected to the first discharge electrode 420 in a manner that allows it to be energized, thereby distributing a negative charge on the surface of the second discharge electrode 460.

[0091] To increase the contact area for charging dust particles 2 contained in the air that flows in through the air inlet 12 guided by the airflow guide 440, a second discharge electrode 460 is formed extending radially from the side of the first discharge electrode 420. At this time, the front end of the extending side of the second discharge electrode 460 is not connected to the dust collection electrode 430.

[0092] More than one second discharge electrode 460 may be provided. However, the second discharge electrode 460 also structurally supports the third discharge electrode 470 (described later), therefore, preferably, as shown below... Figure 4 The configuration shown has more than four.

[0093] Furthermore, when a plurality of second discharge electrodes 460 are provided, it is preferable that they be arranged at the same spacing on the sides of the first discharge electrode 420 in order to firmly support the third discharge electrode 470 described later. That is, as Figure 6As shown, it is preferably arranged symmetrically with the first discharge electrode 420 as the center.

[0094] Similar to the second discharge electrode 460, the third discharge electrode 470 is also designed to increase the contact area between the air and the discharge electrode, making it easier for the dust 2 to become charged. Therefore, together with the first discharge electrode 420 and the second discharge electrode 460, the dust 2 is charged with a negative charge.

[0095] Therefore, the third discharge electrode 470 is also made of a conductor and is connected to the second discharge electrode 460 in a manner that allows it to be energized, thereby distributing a negative charge on the surface of the third discharge electrode 470.

[0096] Regarding the third discharge electrode 470, its embodiments are not limited as long as the contact area of ​​the dust 2 can be increased by connecting it to the second discharge electrode 460. However, it is preferable to form it in a ring shape so as to minimize obstruction of the airflow flowing in through the airflow guide 440, such as Figure 4 and Figure 6 As shown, it is preferably formed in a circular shape.

[0097] Preferably, the airflow guide 440 is configured such that the first discharge electrode 420 is disposed at the center of the third discharge electrode 470, and the third discharge electrode 470 is structurally supported by the second discharge electrode 460.

[0098] like Figure 6 As shown, more than one third discharge electrode 470 can be provided. The number of third discharge electrodes 470 can vary depending on the size of the internal cross-section of the airflow guide 440.

[0099] The third discharge electrode 470 can be integrally injection molded with the second discharge electrode 460 and the first discharge electrode 420, or it can be integrally formed with the second discharge electrode 460 and detachable from the first discharge electrode 420. In the detachable case, the shape of the second discharge electrode 460 and the third discharge electrode 470 can be changed and replaced according to the shape of the airflow guide 440, thereby having the advantage of improved compatibility.

[0100] Figure 7 This is a perspective view of the dust collection unit of an inverter device with a dust collection unit according to an embodiment of the present invention. Figure 8 It is an enlarged edge Figure 7 The cross-section cut along line AA′ is shown, and a cross-sectional view of the dust collection unit is presented.

[0101] like Figure 7 As shown, an inverter device 1 with a dust collection unit according to an embodiment of the present invention may be provided with a dust collection unit 50.

[0102] The dust collection unit 50 is connected to the dust receiver 450 and discharges to the outside of the dust receiver 450 to remove the dust 2 collected inside the dust receiver 450.

[0103] Therefore, even if dust 2 is attracted by the dust collecting electrode 430 and accumulates in the dust receiver 450, it can be separated and discharged by the dust collecting unit 50, thus enabling the dust collecting unit 40 to work continuously.

[0104] At this time, as Figure 7 As shown, the dust collection unit 50 may be equipped with a dust container 510, a dust discharge pipe 520, a second suction component 530, and a centrifugal separation component 540.

[0105] Dust 2 collected in dust receiver 450 moves and is collected inside dust container 510.

[0106] The location of the dust container 510 is not limited. For example, it can be configured on the lower side of the housing 10.

[0107] (Refer to Figure 1 )

[0108] At this time, in order to move the dust 2, the dust container 510 and the dust receiver 450 are connected in a fluid communication manner through the dust discharge pipe 520.

[0109] The length or shape of the dust discharge pipe 520 may vary depending on the location of the dust container 510.

[0110] At this time, as Figure 6 As shown, the second suction member 530 forms a flow, so that the dust 2 collected inside the dust receiver 450 can move with the air to the dust container 510 via the dust discharge pipe 520.

[0111] The second intake member 530 is a component for forming airflow, such as a fan, but not limited to it.

[0112] On the other hand, the dust discharge pipe 520 can be combined with the dust container 510 through the centrifugal separation component 540, and the second suction component 530 can be combined with the centrifugal separation component 540 to form airflow inside the dust discharge pipe 520.

[0113] The centrifugal separation component 540 separates only the dust 2 from the air discharged through the dust discharge pipe 520 and collects the dust 2 in the dust container 510. At this time, the air with the dust 2 removed is discharged to the outside through the second suction component 530.

[0114] Therefore, in one embodiment of the present invention, the centrifugal separation component 540 of the inverter device 1 with a dust collection unit may be provided with a main body 542, an air outlet 544, a dust inlet 546 and a dust outlet 548.

[0115] like Figure 7 As shown, the main body 542 of the centrifugal separation component 540 is formed in a cylindrical shape. Preferably, the main body 542 is formed such that its cross-section is smaller towards the lower part.

[0116] like Figure 7 As shown, a dust inlet 546 is formed on the side of the main body 542, and a dust discharge pipe 520 is connected to the dust inlet 546. Thus, the dust 2 inside the dust receiver 450 flows into the interior of the main body 542 of the centrifugal separation member 540 via the dust discharge pipe 520 in a state of airflow formed by the centrifugal separation member 540.

[0117] At this time, as Figure 8 As shown, the dust discharge pipe 520 connected to the dust inlet 546 is formed such that the airflow direction C1 of the dust discharge pipe 520 is inconsistent with the direction C2 from the dust inlet 546 toward the center of the main body 542 and has a specified angle θ.

[0118] As a result, the air flowing into the body 542 through the dust discharge pipe 520 rotates along the inner circumferential surface of the body 542. At this time, the dust 2 contained in the air is separated from the air by centrifugal force and continues to rotate along the inner circumferential surface of the body 542.

[0119] like Figure 7 As shown, an air outlet 544 is formed on the upper surface of the main body 542. Air that flows in through the dust inlet 546 and separates from the dust 2 is discharged through the air outlet 544.

[0120] like Figure 7 As shown, a second suction member 530 is incorporated at the air outlet 544. The second suction member 530 forms an airflow from inside the main body 542 through the air outlet 544 to the outside, thereby ultimately allowing air to be discharged from the dust receiver 450 through the dust discharge pipe 520 and the main body 542 via the air outlet 544.

[0121] At this time, preferably, the air separated from the dust 2 flows in the direction of the air outlet 544 toward the air flow guide 440.

[0122] On the other hand, such as Figure 7 As shown, a dust discharge port 548 is provided on the lower end face of the main body 542. When the air separated from the dust 2 is discharged through the air discharge port 544, the dust 2 remaining inside the main body 542 moves downward due to gravity.

[0123] At this time, since the lower end of the main body 542 has a smaller cross-section as it gets closer to the lower side, the dust 2 moves in a spiral motion along the inner circumferential surface of the main body 542 and moves toward the dust discharge port 548.

[0124] At this time, a detachable dust container 510 is attached to the dust discharge outlet 548, and the dust 2 discharged from the dust discharge outlet 548 is collected in the dust container 510.

[0125] Therefore, users can easily manage the dust collection unit 40 by simply separating the dust container 510 to remove the dust 2 collected inside the dust container 510.

[0126] The above describes an inverter device with a dust collection unit according to an embodiment of the present invention. However, those skilled in the art will clearly understand that the dust collection unit of the inverter device in this embodiment is not only applicable to inverter devices, but can be applied to electronic devices in various fields that allow air to flow into the housing.

[0127] As described above, preferred embodiments of the present invention have been illustrated. It will be apparent to those skilled in the art that, in addition to the embodiments described above, the present invention can be embodied in other specific forms without departing from its spirit or scope. Therefore, the above embodiments should not be considered limiting but rather exemplary. Consequently, the present invention is not limited to the above description and can be modified within the scope and equivalent of the claims.

Claims

1. An inverter device with a dust collection unit, wherein, include: The casing has an air inlet on the lower side and an air outlet on the upper side; The electrical components for the inverter are housed inside the housing. A first intake member is disposed inside the housing and overlaps the air inlet in the vertical direction to generate an airflow that allows external air to flow into the housing through the air inlet and out through the air outlet to cool the electrical components. as well as A dust collection unit is disposed on one side of the air inlet, overlapping with the air inlet and the first suction member, to remove dust contained in the air flowing in through the air inlet. The dust collection unit includes: The first discharge electrode is negatively charged. The dust collection electrode is configured separately from the first discharge electrode and is positively charged; An airflow guide extends downward from the periphery of the airflow inlet, allowing external air to flow into the airflow inlet through the first discharge electrode and the dust collection electrode; and A dust receiver is disposed below the dust collecting electrode to collect the dust attracted to the dust collecting electrode. The external air flows from the lower side to the upper side of the housing, flows through the dust collection unit and the air inlet into the interior of the housing, flows upward and flows out to the outside of the housing via the air outlet.

2. The inverter device with a dust collection unit according to claim 1, wherein, Includes a power supply unit that provides power to the dust collection unit. The first discharge electrode is connected to the negative terminal of the power supply unit. The dust collection electrode is connected to the positive terminal of the power supply unit.

3. The inverter device with a dust collection unit according to claim 2, wherein, The power supply unit is connected to the electrical components for the inverter and the first suction member, and provides power to the electrical components for the inverter and the first suction member.

4. The inverter device with a dust collection unit according to claim 1, wherein, The first discharge electrode extends along the extension direction of the airflow guide. The dust collection electrode is spaced apart from the side of the first discharge electrode and is disposed on the inner peripheral surface of the airflow guide.

5. The inverter device with a dust collection unit according to claim 4, wherein, It includes one or more second discharge electrodes, which are energized with the first discharge electrode and extend radially from the side of the first discharge electrode.

6. The inverter device with a dust collection unit according to claim 5, wherein, Including one or more third discharge electrodes, The third discharge electrode is energized with the second discharge electrode, forming a ring shape, and is supported by the second discharge electrode.

7. The inverter device with a dust collection unit according to claim 4, wherein, The dust receiver extends upward from the lower edge of the airflow guide to form a space for collecting the dust on the inner circumferential surface of the lower end of the airflow guide.

8. The inverter device with a dust collection unit according to claim 1, wherein, The first discharge electrode and the dust collection electrode are disposed at the center of the airflow guide along its length. The airflow guide is formed such that its cross-sectional area increases as it moves from the central portion toward both ends.

9. The inverter device with a dust collection unit according to claim 1, wherein, It includes a dust collection unit connected to the dust receiver to collect the dust collected by the dust receiver.

10. The inverter device with a dust collection unit according to claim 9, wherein, The dust collection unit includes: A dust container, wherein the dust is collected; A dust discharge pipe, which connects the dust container and the dust receiver in a fluid communication manner; and The second suction member creates a flow to move the dust from the dust receiver to the dust container.

11. The inverter device with a dust collection unit according to claim 10, wherein, The device includes a centrifugal separation component disposed at one end of the dust discharge pipe and connected to the dust discharge pipe and the dust container, so as to separate dust from the air discharged from the dust discharge pipe and collect the dust in the dust container.

12. The inverter device with a dust collection unit according to claim 11, wherein, The centrifugal separation component is equipped with: Cylindrical main body; An air outlet is formed on the upper surface of the main body and is connected to the second suction component; A dust discharge port is formed on the lower end face of the main body and is connected to the dust container; as well as A dust inlet is formed on the side of the main body and is connected to the dust outlet pipe. The dust discharge pipe is connected to the dust inlet such that the direction from the dust inlet toward the center of the main body and the direction of dust discharge are at a predetermined angle, so that the discharged dust rotates along the inner circumferential surface of the main body.

13. The inverter device with a dust collection unit according to claim 12, wherein, The cross-sectional area of ​​the lower end of the main body is smaller as it gets closer to the lower side.

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