Flow path module and electric power device including same

Abstract

A flow path module and an electric power device including the same are disclosed. The flow path module according to one aspect of the present invention includes a flow path dividing member that is connected to a space in a housing and into which a fluid flowing in the space flows; a duct member that is connected to the flow path dividing member and communicates with the flow path dividing member to allow the fluid to flow; and a vortex forming member that is connected to the duct member and communicates with the duct member to allow the fluid to flow, and the vortex forming member includes vortex protrusions formed on an inner surface of an end in an extension direction thereof to form a vortex in the fluid and discharge it.

Description

[Technical field]

[0001]

[0001] The present invention relates to a flow path module and an electric power device including the same, and more particularly to a flow path module having a structure capable of forming a flow path for a cooling fluid to improve cooling efficiency, and an electric power device including the same. [Background technology]

[0002]

[0002] An electric power device refers to any device that can receive or transmit electric power by being connected to an external power source or load. Electric power devices include inverters, capacitors, and PCBs for controlling these devices, and can process and transmit the received electric power to suit the load.

[0003]

[0003] As electric power equipment operates, heat is generated in various components included in the electric power equipment. If each component overheats, it may be damaged by heat. In this case, the operational reliability of each component and the electric power equipment may be reduced. Furthermore, if the overheating state continues, there is a risk of a safety accident such as a fire.

[0004]

[0004] For this reason, currently used electric power devices are provided with heat sinks. The heat sink is located adjacent to a device that generates a lot of heat, and may be configured to receive the generated heat and dissipate it. As an example, a heat sink in the form of fins that receives heat in the form of conduction and dissipates heat in the form of convection may be provided.

[0005] However, in the case of traditional power devices, only components that can be in contact with or connected to a heat sink can be cooled. In other words, in the case of components such as PCBs that cannot be in direct contact with or connected to a heat sink, cooling is difficult to achieve.

[0006]

[0006] In addition, as power devices become more sophisticated and integrated, there are more and more cases where multiple PCBs are installed. In this case, heat can also be generated in the space formed between the multiple PCBs. However, in the case of such spaces, it is difficult to provide effective cooling because the space is too small to accommodate a heat sink.

[0007] Korean Patent Registration No. 10-0998213 discloses a PCB cooling device. Specifically, the PCB cooling device is configured such that a heat sink made of a shape memory alloy can be directly contacted and released from a semiconductor element contacted with the PCB, thereby dissipating heat from the PCB.

[0008] However, the PCB cooling device disclosed in the prior art is provided in a plate shape similar to a PCB, and therefore does not contribute to miniaturization of the PCB and the device in which the PCB cooling device is provided. Furthermore, the PCB cooling device disclosed in the prior art is made of a shape memory alloy, which may increase the manufacturing cost and complicate the manufacturing process.

[0009] Korean Patent Publication No. 10-2021-0002271 discloses a PCB cooling device. Specifically, the PCB cooling device can cool a PCB by spraying cooling water onto the PCB.

[0010] However, the PCB cooling device disclosed in the prior art is a water cooling type, not an air cooling type, and therefore, in order to apply the prior art, a separate process is required to waterproof the PCB.

[0011]

[0011] Furthermore, the PCB cooling device disclosed in the above-mentioned prior art requires a separate cooling water tank and piping members for supplying and circulating cooling water, and therefore, it is difficult to simplify and miniaturize the structure of the power equipment. [Prior art documents] [Patent documents]

[0012] [Patent Document 1]

[0012] Korean Patent Registration No. 10-0998213 (2010.12.03.)

[0013] [Patent Document 2]

[0013] Korean Patent Publication No. 10-2021-0002271 (2021.01.07.) Summary of the Invention [Problem to be solved by the invention]

[0014]

[0014] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a flow path module having a structure in which components can be effectively cooled, and an electric power device including the same.

[0015] Another object of the present invention is to provide a flow path module having a structure in which dead zones through which a cooling fluid cannot flow can be minimized, and an electric power device including the same.

[0016] It is still another object of the present invention to provide a flow path module having a structure that allows a cooling fluid to flow smoothly, and an electric power device including the same.

[0017] It is still another object of the present invention to provide a flow path module having a structure in which components can be effectively cooled without a separate fluid supply source, and an electric power device including the same.

[0018]

[0018] It is still another object of the present invention to provide a flow path module having a structure that allows for improved freedom in design and layout, and an electric power device including the same.

[0019]

[0019] The objectives of the present invention are not limited to those mentioned above, and other objectives not mentioned will be clearly understood by a person skilled in the art to which the present invention pertains from the description below. [Means for solving the problem]

[0020]

[0020] According to one aspect of the present invention, a flow path module is provided, which includes a flow path dividing member connected to a space in a housing and into which the fluid flowing in the space flows; a duct member connected to the flow path dividing member and connected to the flow path dividing member through which the fluid flows; and a vortex forming member connected to the duct member and connected to the duct member through which the fluid flows, the vortex forming member including vortex protrusions formed on the inner surface of the end in the extension direction thereof and configured to cause the fluid to be formed into a vortex and discharged.

[0021]

[0021] In this case, a flow path module can be provided, which includes: a vortex body extended in one direction, one end of which is connected to the duct member; and a vortex arm extended in the other direction, one end of which is connected to the vortex forming member, and the other end of which is open so that the fluid is discharged.

[0022]

[0022] In addition, a flow path module may be provided in which the vortex forming member includes a first vortex hollow formed through the interior of the vortex body along the one direction and connected to the interior of the duct member; and a second vortex hollow formed through the interior of the vortex arm along the other direction and connected to the first vortex hollow and the outside, respectively.

[0023]

[0023] In this case, a flow path module may be provided in which the fluid branches into a portion that flows along the one direction in the first vortex hollow; and another portion that passes through the second vortex hollow from the first vortex hollow and is exposed to the outside.

[0024]

[0024] Also, a flow path module may be provided in which a plurality of vortex arms are formed and the plurality of vortex arms are coupled to the outer periphery of the vortex body at different positions from each other.

[0025]

[0025] A flow path module may also be provided in which the vortex protrusion is formed to protrude radially inward from the inner surface of the other end of the vortex arm.

[0026]

[0026] In this case, a flow path module may be provided in which a plurality of the vortex protrusions are provided, and the plurality of vortex protrusions are spaced apart from each other along the inner circumference of the inner surface of the vortex arm.

[0027]

[0027] Also, a flow path module can be provided in which the vortex forming member is formed to extend along one direction, and the duct member is formed to extend so as to be inclined at a predetermined angle with respect to the one direction.

[0028]

[0028] In this case, a flow path module can be provided in which one end of the duct member in its extension direction is connected to and communicated with the vortex forming member, and the other end of the duct member in its extension direction is connected to and communicated with the flow path dividing member.

[0029]

[0029] Also, a flow path module can be provided in which the duct member is formed of a flexible material.

[0030]

[0030] In this case, the flow path dividing member may be provided with a flow path module including a divided body which is connected to the duct member; and a divided space which is formed inside the divided body and is open so that the fluid flows in.

[0031]

[0031] A flow path module can be provided in which the divided body includes a first divided surface surrounding a part of the divided space; a second divided surface extending at a predetermined angle with the first divided surface and surrounding another part of the divided space; a third divided surface and a fourth divided surface which are continuous with the first divided surface and the second divided surface, respectively, and are arranged opposite each other across the divided space, and the duct member extends so as to be inclined only by the predetermined angle to which the second divided surface extends.

[0032]

[0032] At this time, a flow path module can be provided in which the flow path dividing member and the duct member are arranged facing each other across a support plate placed in the space of the housing and are respectively coupled to one side and the other side of the support plate, and support through holes are formed inside the support plate and communicated with the flow path dividing member and the duct member, respectively.

[0033]

[0033] In addition, according to one aspect of the present invention, there is provided an electric power device comprising: a housing having a housing space formed therein and connected to the outside; an electric current part received in the housing space and connected to the outside; and a flow path module configured to be coupled to the electric current part to form a flow path for a fluid to cool the electric current part, the electric current part including a plurality of substrates arranged to be stacked at a distance from each other, the flow path module including: a flow path dividing member coupled to one of the plurality of substrates and the flow path dividing member, and connected to the flow path dividing member through which the fluid flows; a duct member coupled to one of the plurality of substrates and another substrate positioned adjacent to the one of the plurality of substrates, and connected to the duct member through which the fluid flows, the vortex forming member including a vortex protrusion formed on an inner surface of an end in an extension direction thereof, configured to cause the fluid to be formed as a vortex and discharged.

[0034]

[0034] In this case, the vortex forming member includes a first vortex forming member connected to any pair of adjacent substrates among the plurality of substrates; and a second vortex forming member connected to another pair of adjacent substrates among the plurality of substrates and connected to the first vortex forming member, and the plurality of substrates include a first substrate located at the bottom, whose lower side is connected to the duct member and whose upper side is connected to the first vortex forming member; a second substrate located above the first substrate and spaced apart from the first substrate, whose lower side is connected to the first vortex forming member and whose upper side is connected to the second vortex forming member; and a third substrate located above the second substrate and spaced apart from the second substrate, whose lower side is connected to the second vortex forming member.

[0035]

[0035] Furthermore, an electric power equipment can be provided in which a first substrate through hole, a second substrate through hole and a third substrate through hole are formed through the interiors of the first substrate, the second substrate and the third substrate, respectively, the duct member is connected to the first substrate through hole, the first vortex forming member is connected to the first substrate through hole and the second substrate through hole, and the second vortex forming member is connected to the second substrate through hole.

[0036]

[0036] At this time, an electric power equipment can be provided in which the fluid that flows into the first vortex forming member is partially discharged into a first flow space, which is the space formed between the first substrate and the second substrate, and the remaining portion flows into the second vortex forming member, and the fluid that flows into the second vortex forming member is partially discharged into a second flow space, which is the space formed between the second substrate and the third substrate, and the remaining portion is discharged into a third flow space, which is the space formed above the third substrate.

[0037]

[0037] In addition, an electric power equipment can be provided in which the vortex forming member includes a vortex body extended in the direction in which a plurality of the substrates are stacked, and having a first vortex hollow formed therein and penetrating along the extension direction; and a vortex arm extended in a direction different from the vortex body, and having a second vortex hollow formed therein and communicating with the first vortex hollow and the flow space, respectively, penetrating along the extension direction.

[0038]

[0038] At this time, an electric power device may be provided in which the vortex protrusion is located adjacent to an end of the inner surface of the vortex arm surrounding the second vortex hollow.

[0039]

[0039] In addition, an electric power equipment can be provided in which the housing includes a blower section connected to one surface thereof and providing a transport force for causing an external fluid to flow into the housing space, and the flow path dividing member is arranged on a flow path through which the fluid that has flowed into the housing space by the transport force flows, and a portion of the flowing fluid is configured to flow into the flow path dividing member. Effect of the Invention

[0040]

[0040] With the above-mentioned configuration, the components of the flow path module according to the embodiment of the present invention and the electric power equipment including the same can be effectively cooled.

[0041]

[0041] The components housed inside the housing can be cooled by an external fluid flowing into the housing space. The external fluid flows in the housing space and exchanges heat with the housed components to cool the components.

[0042]

[0042] The flow path module includes a flow path dividing member that is in communication with the housing space. The fluid that flows into the housing space is divided, and a part of the divided fluid flows through the flow path dividing member.

[0043]

[0043] The flow path dividing member includes a dividing surface formed to extend in an inclined manner. The fluid flowing into the flow path dividing member can flow along the dividing surface toward the duct member and the vortex flow generating member. The duct member and the vortex flow generating member are each connected to the flow path dividing member.

[0044]

[0044] The vortex-forming member includes vortex protrusions formed at a portion where the inside and outside of the vortex-forming member are connected. Fluid flowing into the inside of the vortex-forming member is discharged to the outside, and is formed into a vortex by the vortex protrusions. In other words, the fluid discharged from the vortex-forming member flows in various shapes, allowing smooth heat exchange with the components.

[0045]

[0045] As a result, each component of the electric equipment can be effectively cooled by the fluid discharged from the vortex generating member.

[0046]

[0046] Also, due to the above-mentioned configuration, the flow path module according to the embodiment of the present invention and the power device including the same can minimize dead zones through which the cooling fluid cannot flow.

[0047]

[0047] A plurality of substrates are stacked and spaced apart from one another. A flow space is formed between the plurality of substrates. A vortex-forming member is disposed in the flow space, and the fluid that flows into the vortex-forming member can be discharged into the flow space. The fluid discharged into the flow space can flow while cooling the substrates and components bonded to the substrates.

[0048] Therefore, compared to a case where the flow path module is not provided, the cooling fluid can flow in a wider and more diverse space, and thus blind spots where the cooling fluid cannot flow can be minimized.

[0049] As a result, components that are arranged apart from the heat dissipating member, such as a substrate, can also be effectively cooled.

[0050]

[0050] Also, due to the above-mentioned configuration, the flow path module according to the embodiment of the present invention and the electric power device including the same can allow the cooling fluid to flow smoothly.

[0051]

[0051] The flow path dividing member includes a dividing space through which the divided fluid flows and a dividing surface that partially surrounds the dividing space and guides the divided fluid toward the duct member. The divided fluid can flow along the dividing surface toward the duct member.

[0052] In one embodiment, the duct member may be extended so that its inner surface is inclined. In the above embodiment, the inclination of the inner surface of the duct member may be formed to correspond to the inclination of the parting surface. Thus, the inner surface of the duct member may be extended smoothly without a separate protrusion.

[0053]

[0053] Therefore, the fluid flowing in the housing space can be discharged to the flow space through the flow path dividing member, the duct member and the vortex flow generating member without any significant flow resistance, and the cooling fluid can flow smoothly.

[0054]

[0054] Also, due to the above-mentioned configuration, the flow path module according to the embodiment of the present invention and the power device including the same can effectively cool the components without a separate fluid supply source.

[0055]

[0055] The fluid for cooling the components of the power equipment can be subjected to a transport force by the operation of the blower. When the blower is operated, the fluid that has been stagnating outside the housing can flow into the housing space. The transport force applied by the blower allows the fluid to continuously flow in the housing space. In other words, no separate member is required to supply the fluid for cooling.

[0056]

[0056] Meanwhile, the flow path dividing member is disposed on the path of the fluid flowing in the housing space. That is, a separate device for guiding the fluid toward the flow path dividing member is not required. When the blower is operated, a portion of the fluid flowing into the housing space can flow into the flow path dividing member to cool a substrate or the like.

[0057]

[0057] Thus, the fluid can be caused to flow and cool the various components without a separate supply and without an additional power source.

[0058]

[0058] Furthermore, due to the above-mentioned configuration, the flow path module according to the embodiment of the present invention and the electric power device including the same can have improved design freedom and layout freedom.

[0059]

[0059] The flow path module is positioned between the substrates and configured to discharge a fluid into the space between the substrates. The flow path module can be manufactured to be small in size to fit the size of the small space formed between the substrates. In other words, even if the flow path module is provided, the size of the power device does not increase.

[0060]

[0060] The flow path module may include a plurality of vortex-forming members. The plurality of vortex-forming members may be located between each pair of substrates arranged adjacent to each other. When the number of substrates is increased, additional vortex-forming members may be provided correspondingly. That is, the number of vortex-forming members may be adjusted to easily scale up or scale down the flow path module.

[0061]

[0061] In addition, the flow path module is located in a dead space formed between the substrates, that is, no additional space is required to accommodate the flow path module.

[0062]

[0062] Therefore, the internal space of the electric power device can be utilized more efficiently, and the electric power device can be transformed into various shapes according to the capacity of the electric power device. Accordingly, the design freedom and the layout freedom can be improved.

[0063]

[0063] The effects of the present invention are not limited to those described above, but should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description of the present invention or the claims. [Brief description of the drawings]

[0064] [Figure 1] FIG. 1 is a perspective view illustrating an electric power device according to an embodiment of the present invention. [Diagram 2]

[0065] FIG. 2 is a partially opened perspective view illustrating the internal configuration of the power device of FIG. [Diagram 3]

[0066] FIG. 3 is a cross-sectional view taken along line AA of the internal configuration of the power device of FIG. [Figure 4]

[0067] FIG. 4 is a partially enlarged cross-sectional view illustrating a coupling structure between a flow path module and a PCB provided in the power device of FIG. [Diagram 5]

[0068] FIG. 5 is an exploded perspective view illustrating a coupling structure between the flow path module and the PCB of FIG. [Figure 6]

[0069] FIG. 6 is a perspective view illustrating some components of the flow path module of FIG. [Figure 7]

[0070] FIG. 7 is a perspective view illustrating a flow path module included in the power device of FIG. [Figure 8]

[0071] FIG. 8 is an exploded perspective view illustrating a connection structure between components of the flow path module of FIG. [Figure 9]

[0072] 9 is a partially open perspective view illustrating a duct member provided in the flow path module of FIG. [Figure 10]

[0073] 10 is a side cross-sectional view illustrating a duct member provided in the flow path module of FIG. [Figure 11]

[0074] FIG. 11 is a front cross-sectional view illustrating a vortex forming member provided in the flow path module of FIG. [Figure 12]

[0075] FIG. 12 is a cross-sectional plan view illustrating a vortex forming member provided in the flow path module of FIG. [Figure 13]

[0076] FIG. 13 is a partial perspective view illustrating a modification of the vortex generating member of FIG. [Figure 14]

[0077] FIG. 14 is a partial open perspective view illustrating the flow paths formed within the flow path module of FIG. [Figure 15]

[0078] FIG. 15 is a side cross-sectional view illustrating the flow paths formed within the flow path module of FIG. [Figure 16]

[0079] FIG. 16 is a side cross-sectional view illustrating flow paths formed inside the electric power device of FIG. [Figure 17]

[0080] FIG. 17 is a front cross-sectional view illustrating flow paths formed inside the electric power device of FIG. [Figure 18]

[0081] FIG. 18 is a partial open perspective view illustrating flow paths formed inside the power device of FIG. [Figure 19] FIG. 19 is a partial open perspective view illustrating flow paths formed inside the power device of FIG. [Figure 20] FIG. 20 is a partial open perspective view illustrating flow paths formed inside the power device of FIG. [Figure 21] FIG. 21 is a partial open perspective view illustrating flow paths formed inside the power device of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0065]

[0082] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily carry out the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention, parts not related to the description are omitted in the drawings, and the same reference numerals are used throughout the specification to refer to the same or similar components.

[0066]

[0083] The words and terms used in this specification and the claims should not be interpreted in a limited manner based on their ordinary or dictionary meaning, but should be interpreted in a meaning and concept that corresponds to the technical idea of ​​the present invention in accordance with the principle that the inventor can define the terms and concepts in order to best describe his / her invention.

[0067]

[0084] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to preferred embodiments of the present invention and do not represent the entire technical idea of ​​the present invention, and therefore the relevant configurations may have various equivalents and modifications that replace them at the time of filing of the present invention.

[0068]

[0085] In the following description, in order to clarify the features of the present invention, the description of some components may be omitted.

[0069]

[0086] 1. Definitions

[0087] As used herein, the term "communication" means that one or more components are fluidly connected to one another. In one embodiment, the communication may be formed by components such as conduits, pipes, tubing, or the like.

[0070]

[0088] The term "conductive" as used in the following description means that one or more members are connected to each other so as to be able to transmit a current or an electrical signal. In one embodiment, the conductive member may be used in a wired form, such as a conductive member, or in a wireless form, such as Bluetooth, Wi-Fi, or RFID.

[0071]

[0089] The term "fluid" used in the following description refers to any type of material whose shape can be deformed by an external force. The fluid may be configured to flow into the electric power device 10 and exchange heat with components of the electric power device 10. Various components included in the electric power device 10 may be cooled by the heat exchange. In one embodiment, the fluid may be a gas such as air.

[0072]

[0090] The terms "upper", "lower", "left", "right", "front" and "rear" used in the following description will be understood with reference to the coordinate system illustrated throughout the accompanying drawings.

[0073]

[0091] 2. Description of the configuration of the electric power device 10 according to the embodiment of the present invention

[0092] 1 to 5, an electric power device 10 according to an embodiment of the present invention is illustrated.

[0074]

[0093] The power device 10 may be provided in any form capable of accommodating various electric and electronic devices therein and performing a preset function. In one embodiment, the power device 10 may be provided as any device including an inverter, an IGBT (Insulated Gate Bipolar Transistor), a PCB (Printed Circuit Board), etc.

[0075]

[0094] In the above embodiment, the power device 10 may be electrically connected to an external power source or load. In the above embodiment, the power device 10 may be configured to receive power from an external power source, process the received power in various forms, and then transmit the power to an external load.

[0076]

[0095] At this time, as the power device 10 operates, heat may be generated in various components mounted inside the power device 10. If excessive heat is generated, damage may be induced to each component of the power device 10, resulting in malfunction of the power device 10.

[0077]

[0096] In addition, when a fluid for cooling each component of the electric power device 10 flows in, if a flow path for the fluid cannot be effectively formed, it is difficult to improve the cooling efficiency. That is, it is preferable that the fluid that flows into the electric power device 10 flows in various spaces inside the electric power device 10 and exchanges heat with various components.

[0078]

[0097] Therefore, the electric power device 10 according to the embodiment of the present invention includes the flow path module 11, and can form various flow paths for the fluid introduced for cooling. Accordingly, the components of the electric power device 10 according to the embodiment of the present invention can be effectively cooled, and the operational reliability can be improved.

[0079]

[0098] In the illustrated embodiment, the electric power device 10 includes a housing 100, a current-carrying portion 200, a flow path dividing member 300, a duct member 400, and a vortex-forming member 500. Among the above components, the flow path dividing member 300, the duct member 400, and the flow path module 11 constituting the vortex-forming member 500 will be described in a separate section.

[0080]

[0099] The housing 100 forms the outer shape of the power device 10. The housing 100 is a portion of the power device 10 that is exposed to the outside. A space is formed inside the housing 100, and various components of the power device 10 can be mounted therein.

[0081]

[0100] The interior of the housing 100 is electrically connected to an external power source or load. The components accommodated in the housing 100 may be electrically connected to an external power source or load. For the electrical connection, a conductive member (not shown) may pass through the interior of the housing 100.

[0082]

[0101] The housing 100 may be made of an electrically insulating material in order to prevent any electrical connection with an external power source or load, and to prevent electric shock accidents for workers located adjacent to the power device 10.

[0083]

[0102] The housing 100 may be made of a highly heat-resistant material in order to prevent damage caused by heat generated in the components of the power device 10 housed inside the housing 100, or to prevent safety accidents that may occur due to overheating caused by the generated heat.

[0084]

[0103] In one embodiment, the housing 100 may be made of a synthetic resin material such as PC (Poly Carbonate).

[0085]

[0104] The housing 100 is in communication with the outside. Fluid outside the housing 100 may flow into the inside of the housing 100. Various components accommodated inside the housing 100 may be cooled by heat exchange with the flowing fluid.

[0086]

[0105] The housing 100 may have any shape capable of mounting the components of the electric power device 10. In the illustrated embodiment, the housing 100 has a rectangular prism shape having a length in the front-rear direction longer than a length in the left-right direction and a height in the up-down direction.

[0087]

[0106] In the illustrated embodiment, the housing 100 includes a first housing 110 , a second housing 120 , a blower portion 130 , a terminal portion 140 , a housing space portion 150 and a support plate 160 .

[0088]

[0107] The first housing 110 forms part of the exterior of the housing 100. In the illustrated embodiment, the first housing 110 forms the top side of the housing 100.

[0089]

[0108] The first housing 110 is coupled to the second housing 120. In one embodiment, the first housing 110 may be detachably coupled to the second housing 120. In this embodiment, the first housing 110 and the second housing 120 may be easily coupled and separated, and the manufacture and maintenance of the power device 10 may be simplified.

[0090]

[0109] A space is formed inside the first housing 110. The space is connected to a space formed inside the second housing 120. As described below, the space formed inside the first housing 110 may be defined as a first space 151, and the space formed inside the second housing 120 may be defined as a second space 152.

[0091]

[0110] One side of the first housing 110, the bottom side in the illustrated embodiment, is open, and the inside of the first housing 110 can be in communication with the inside of the second housing 120 through the one side, i.e., the bottom side.

[0092]

[0111] The first housing 110 is coupled to a terminal portion 140. Various components accommodated inside the housing 100 may be electrically connected to an external power source or load through the terminal portion 140. The terminal portion 140 is located at one end of the first housing 110 in the longitudinal direction, which is the front end surface in the illustrated embodiment.

[0093]

[0112] In the illustrated embodiment, the first housing 110 includes a rib 111 and a vent 112 .

[0094]

[0113] The ribs 111 form a part of the first housing 110. The ribs 111 reinforce the rigidity of the first housing 110. In the illustrated embodiment, the ribs 111 are formed in the width direction of the first housing 110, that is, on the left and right sides, respectively.

[0095]

[0114] The rib 111 is formed to extend in the height direction of the first housing 110, that is, in the vertical direction in the illustrated embodiment, so that the rigidity of the first housing 110 in the height direction can be reinforced.

[0096]

[0115] A plurality of ribs 111 may be formed. The plurality of ribs 111 may be arranged to be spaced apart from each other along the longitudinal direction of the first housing 110. In the illustrated embodiment, the ribs 111 are arranged to be spaced apart from each other along the front-rear direction.

[0097]

[0116] A space formed by separating the ribs 111 from one another may be defined as a vent 112 .

[0098]

[0117] The ventilation part 112 communicates the internal space of the first housing 110, i.e., the first space 151, with the outside. Fluid outside the first housing 110, i.e., a fluid for cooling, may flow into the first space 151 through the ventilation part 112. In addition, fluid inside the first housing 110, i.e., a fluid after heat exchange, may flow out to the first space 151 through the ventilation part 112.

[0099]

[0118] The ventilation portion 112 is formed through the surface of the first housing 110. The ventilation portion 112 may be formed at any position that allows communication between the internal space of the first housing 110 and the outside. In the illustrated embodiment, the ventilation portion 112 is formed in the width direction of the first housing 110, i.e., on the left and right sides, in the same manner as the rib 111.

[0100]

[0119] The ventilation portion 112 is formed to extend in the height direction of the first housing 110, that is, in the vertical direction in the illustrated embodiment. The shape of the ventilation portion 112 may be changed to correspond to the shape of the rib 111.

[0101]

[0120] A plurality of ventilation portions 112 may be formed. The plurality of ventilation portions 112 may be arranged to be spaced apart from each other along the longitudinal direction of the first housing 110. In the illustrated embodiment, the ventilation portions 112 are arranged to be spaced apart from each other along the front-rear direction.

[0102]

[0121] At this time, the ventilation portion 112 is formed between adjacent ribs 111. That is, the ventilation portion 112 is formed by separating a pair of adjacent ribs 111.

[0103]

[0122] As described above, a plurality of ribs 111 may be formed and arranged in the longitudinal direction of the first housing 110, that is, in the front-rear direction in the illustrated embodiment. Accordingly, a plurality of ventilation portions 112 may also be formed and arranged in the longitudinal direction of the first housing 110, that is, in the front-rear direction in the illustrated embodiment.

[0104]

[0123] It will therefore be understood that the ribs 111 and the ventilation portions 112 are arranged alternately and continuously along the longitudinal direction of the first housing 110.

[0105]

[0124] The second housing 120 forms another portion of the exterior of the housing 100. In the illustrated embodiment, the second housing 120 forms the underside of the housing 100.

[0106]

[0125] The second housing 120 is coupled to the first housing 110. In one embodiment, the second housing 120 may be removably coupled to the first housing 110, as described above.

[0107]

[0126] A space is formed inside the second housing 120. The space is in communication with the space formed inside the first housing 110. Accordingly, the first space 151 and the second space 152 are in communication with each other, as described above.

[0108]

[0127] One side of the second housing 120, the upper side in the illustrated embodiment, is open, and the inside of the second housing 120 communicates with the inside of the first housing 110 through the one side, i.e., the upper side.

[0109]

[0128] Therefore, it can be said that the first housing 110 and the second housing 120 have opposing sides each open, and the interiors thereof are in communication with each other.

[0110]

[0129] Accordingly, components of the electric power device 10 may be accommodated throughout the first housing 110 and the second housing 120. In addition, as described below, a fluid that has flowed into one of the first housing 110 and the second housing 120 may flow into the other one.

[0111]

[0130] The second housing 120 is in communication with the outside. An external fluid may flow into the second housing 120 and exchange heat with various components accommodated therein. In the illustrated embodiment, one end in the longitudinal direction of the second housing 120, i.e., the front end, is open and in communication with the outside.

[0112]

[0131] The second housing 120 is coupled to the blower 130. Various components accommodated inside the housing 100 may be cooled by the fluid introduced by the blower 130.

[0113]

[0132] The blower 130 provides a force for moving the fluid outside the housing 100 into the housing 100 .

[0114]

[0133] The blower 130 is located at a portion where the second housing 120 is connected to the outside, and can transmit a transport force from the outside to the inside of the second housing 120 to the external fluid. In the illustrated embodiment, the blower 130 is located at one end in the longitudinal direction of the second housing 120, i.e., the front end. In one embodiment, the blower 130 may be disposed so as to be accommodated inside the second housing 120 and not be arbitrarily exposed to the outside.

[0115]

[0134] The blower 130 is electrically connected to the terminal unit 140. Power required for the operation of the blower 130 may be transmitted from the terminal unit 140 or from an external power source electrically connected to the terminal unit 140. In one embodiment, an operator may apply a control signal for controlling the operation of the blower 130 through the terminal unit 140.

[0116]

[0135] The blower 130 may be provided in any form capable of providing a transport force to the external fluid to cause the fluid to flow inside the housing 100. In the illustrated embodiment, the blower 130 is provided in the form of a fan including a plurality of blades.

[0117]

[0136] A plurality of blowers 130 may be provided. The plurality of blowers 130 may be arranged in various configurations to apply a transport force to the external fluid. In the illustrated embodiment, two blowers 130 are provided and arranged side by side in the width direction, i.e., the left and right direction, of the housing 100.

[0118]

[0137] The fluid flowing into the internal space of the second housing 120, i.e., the second space 152, by the blower 130 can exchange heat with the components contained in the second space 152, i.e., the switching element 210, the heat dissipation member 220, etc. described below, to cool them.

[0119]

[0138] In particular, the power device 10 according to the embodiment of the present invention can divide the flow of fluid flowing into the second space 152 and guide it to the first space 151. Accordingly, the components accommodated in the first space 151, such as the substrate 230 and the capacitor 250, can be effectively cooled, which will be described in detail later.

[0120]

[0139] The terminal portion 140 is a portion through which the inner space of the housing 100 is electrically connected to the outside. The terminal portion 140 connects various components accommodated inside the housing 100 to an external power source or load.

[0121]

[0140] In one embodiment, the terminal unit 140 may include a plurality of operation members, which may include a button, a dial, a touch screen, or the like, and may receive various control signals for operating the power device 10.

[0122]

[0141] The terminal portion 140 is coupled to the first housing 110. The terminal portion 140 is located at one end in the longitudinal direction of the first housing 110, which is the front end in the illustrated embodiment.

[0123]

[0142] Accordingly, the operator can easily energize the terminal unit 140 located on the front side with an external power source or load. In addition, in an embodiment in which the terminal unit 140 is provided with an operating member, the operator can easily control the electric device 10 by operating the terminal unit 140 located on the front side.

[0124]

[0143] The terminal unit 140 may be disposed at any position where it can be electrically connected to various components accommodated in the internal space of the housing 100 and can receive a control signal from an operator.

[0125]

[0144] The terminal portion 140 is electrically connected to other components of the electric power device 10. In one embodiment, the terminal portion 140 may be electrically connected to the blower portion 130 and the electric current-carrying portion 200.

[0126]

[0145] A space in which various components electrically connected to the terminal portion 140 are mounted, that is, a space formed inside the first housing 110 and the second housing 120, may be defined as a housing space portion 150.

[0127]

[0146] The housing space portion 150 is a space formed inside the first housing 110 and the second housing 120. The housing space portion 150 accommodates various components constituting the electric power device 10. In the illustrated embodiment, the housing space portion 150 may accommodate the blower unit 130, the support plate 160, the electric current conducting unit 200, and the flow path module 11.

[0128]

[0147] The housing space 150 is defined by being surrounded by the first housing 110 and the second housing 120. The housing space 150 is prevented from being arbitrarily exposed to the outside by the surfaces of the first housing 110 and the second housing 120.

[0129]

[0148] The housing space 150 is connected to the outside. An external fluid can flow into the housing space 150 to cool the components contained therein and then be discharged.

[0130]

[0149] The housing space 150 is electrically connected to the outside. Various components housed in the housing space 150 may be electrically connected to an external power source or load.

[0131]

[0150] In the illustrated embodiment, the housing cavity 150 includes a first cavity 151 and a second cavity 152 .

[0132]

[0151] The first space 151 is a space formed inside the first housing 110. The first space 151 is surrounded by the surface of the first housing 110. In the illustrated embodiment, the first space 151 is surrounded by the surface of the first housing 110 on its front side, rear side, upper side, left side, and right side.

[0133]

[0152] Therefore, it can be said that the first space 151 is partially surrounded by the surface of the first housing 110.

[0134]

[0153] Another portion of the first space 151, i.e., the bottom side in the illustrated embodiment, is open. The first space 151 is connected to the second space 152 through the other portion, i.e., the bottom side. An external fluid that has flowed into the second space 152 can flow into the first space 151 through the communication.

[0135]

[0154] The first space 151 is in communication with the outside. The fluid flowing from the second space 152 to the first space 151 can be discharged to the outside. The communication can be achieved by a vent 112 formed in the first housing 110.

[0136]

[0155] At this time, no additional member for restricting the flow direction of the fluid is provided in the ventilation part 112. Therefore, the external fluid can flow into the first space 115 through the ventilation part 112 and exchange heat with the components accommodated inside the first space 115.

[0137]

[0156] Some components of the electric power device 10 are accommodated in the first space 151. In the illustrated embodiment, the first space 151 accommodates the substrate 230 and some components of the flow path module 11.

[0138]

[0157] The first space 151 is in communication with the second space 152. Components of the electric power device 10 can be accommodated throughout the first space 151 and the second space 152.

[0139]

[0158] The second space 152 is a space formed inside the second housing 120. The second space 152 is surrounded by the surface of the second housing 120. In the illustrated embodiment, the second space 152 is surrounded by the surface of the second housing 120 on its front side, rear side, bottom side, left side, and right side.

[0140]

[0159] Therefore, it can be said that the second space 152 is partially surrounded by the surface of the second housing 120.

[0141]

[0160] Another portion of the second space 152, i.e., the upper side in the illustrated embodiment, is open. The second space 152 communicates with the first space 151 through the other portion, i.e., the upper side. As described above, the external fluid that has flowed into the second space 152 can flow into the first space 151.

[0142]

[0161] The second space 152 communicates with the outside. Specifically, the second space 152 communicates with the outside through one side of the second housing 120 where the blower 130 is located, which is the front side in the illustrated embodiment. External fluid may flow into the second space 152 through the front side due to a transport force applied by the blower 130.

[0143]

[0162] The fluid that has flowed into the second space 152 may flow while cooling the components accommodated in the second space 152. In addition, a portion of the fluid that has flowed into the second space 152 may flow into the first space 151 through the flow path module 11.

[0144]

[0163] That is, the flow path module 11 is connected to the first space 151 and the second space 152, respectively. Accordingly, the components accommodated in the first space 151 and the components accommodated in the second space 152 can be effectively cooled, which will be described in detail later.

[0145]

[0164] The second space 152 accommodates other components of the electric power device 10. In the illustrated embodiment, the second space 152 accommodates the support plate 160, the switching element 210 of the current-carrying part 200, the heat dissipation member 220, and the capacitor 250.

[0146]

[0165] The support plate 160 supports the flow path dividing member 300 of the flow path module 11. The support plate 160 is located in the second space 152.

[0147]

[0166] The support plate 160 physically and partially separates the first space 151 and the second space 152. The support plate 160 separates the first space 151 and the second space 152 along its height direction, which is the up-down direction in the illustrated embodiment.

[0148]

[0167] The support plate 160 is coupled to the heat dissipation member 220 of the current-carrying part 200. This coupling allows the support plate 160 to be stably maintained in a state where it is accommodated in the second space 152. In the illustrated embodiment, a rear end of the support plate 160 is coupled to the heat dissipation member 220.

[0149]

[0168] The support plate 160 is coupled to the flow path dividing member 300. Through this coupling, the flow path dividing member 300 may be coupled to the housing 100. Therefore, it can be said that the support plate 160 supports the flow path dividing member 300.

[0150]

[0169] The support plate 160 may be provided in any shape that can partition the first space 151 and the second space 152, communicate with the flow path dividing member 300, and support the flow path dividing member 300. In the illustrated embodiment, the support plate 160 has a rectangular plate shape that is extended in the lengthwise and widthwise directions of the housing 100, i.e., in the front-rear and left-right directions.

[0151]

[0170] A support through hole 161 is formed inside the support plate 160. The support through hole 161 is formed to penetrate the support plate 160 in the thickness direction, that is, in the vertical direction in the illustrated embodiment.

[0152]

[0171] The support through-hole 161 communicates with the upper and lower sides of the support plate 160. Through this communication, the first space 151 and the second space 152 can communicate with each other.

[0153]

[0172] In addition, the support through-hole 161 may be communicated with the division space 320 of the flow path dividing member 300. Due to the communication, a part of the fluid that has flowed into the second space 152 may flow into the duct member 400 through the division space 320 and the through-hole (not shown).

[0154]

[0173] In one embodiment, the support through-hole 161 may be arranged to overlap with some components of the flow path module 11, i.e., the flow path dividing member 300 and the duct member 400, in the height direction, or in the vertical direction in the illustrated embodiment. Therefore, it can be said that the support through-hole 161 forms a flow path for the fluid that has flowed into the second space 152 together with the flow path module 11.

[0155]

[0174] The support through hole 161 may have any shape that can communicate between the flow path dividing member 300 and the duct member 400. In the embodiment shown in Fig. 5, the support through hole 161 has a circular cross section and is cylindrical in shape extending in the vertical direction.

[0156]

[0175] A detailed description of the fluid flow paths formed inside the housing 100, including the support through-holes 161, will be given later.

[0157]

[0176] The current conducting unit 200 is a component of the power device 10 that is current-conducted with an external power source or load. The current conducting unit 200 may be configured in various forms necessary for the power device 10 to perform its function. In the illustrated embodiment, the current conducting unit 200 includes a switching element 210 and is configured to perform a switching function. Although not designated by a reference numeral, the current conducting unit 200 may include various types of electronic devices, such as an inverter element.

[0158]

[0177] The current-carrying unit 200 is mounted inside the housing 100. The current-carrying unit 200 is not exposed to the outside of the housing 100. At this time, some of the components of the current-carrying unit 200 are accommodated inside the first housing 110, and the other part is accommodated inside the second housing 120.

[0159]

[0178] Specifically, the switching element 210, the heat dissipation member 220, and the capacitor 250 of the current conducting unit 200 are housed in the second space 152. The substrate 230 of the current conducting unit 200 is housed in the first space 151.

[0160]

[0179] As described above, the first space 151 and the second space 152 are in communication with each other. Therefore, it can be said that the current-carrying portion 200 is accommodated throughout the first space 151 and the second space 152.

[0161]

[0180] The current carrying unit 200 is electrically connected to an external power source or a load. The current carrying is achieved by electrically connecting the current carrying unit 200 to the terminal unit 140. That is, the current carrying unit 200 is electrically connected to the external power source or the load through the terminal unit 140.

[0162]

[0181] In the illustrated embodiment, the current-carrying part 200 includes a switching element 210 , a heat dissipation member 220 , a substrate 230 , a substrate through-hole 240 and a capacitor 250 .

[0163]

[0182] The switching element 210 is configured to open and close a circuit by performing switching operation according to an applied control signal. The switching element 210 is electrically connected to an external power source or a load through the terminal unit 140. The operating principle and function of the switching element 210 are well known technologies, so a detailed description thereof will be omitted.

[0164]

[0183] The switching element 210 may be implemented in any form capable of opening or closing a circuit by a switching operation. In one embodiment, the switching element 210 may be implemented as an IGBT (Insulated Gate Bipolar Transistor).

[0165]

[0184] The switching element 210 is electrically connected to the substrate 230. A control signal for operating the switching element 210 can be transmitted from the substrate 230.

[0166]

[0185] The switching element 210 is electrically connected to a capacitor 250. The power required to operate the switching element 210 can be transferred from the capacitor 250.

[0167]

[0186] The switching element 210 is accommodated inside the housing 100. Specifically, the switching element 210 is accommodated in the second space 152, but is positioned biased toward the first space 151. That is, in the embodiment illustrated in Figures 3 and 4, the switching element 210 is positioned biased toward the upper side in the second space 152.

[0168]

[0187] The switching element 210 is located adjacent to the heat dissipation member 220 and the substrate 230. In the illustrated embodiment, the switching element 210 is located between the heat dissipation member 220 and the second substrate 232.

[0169]

[0188] The switching element 210 may include a plurality of elements. A large amount of heat may be generated as the switching element 210 operates. Therefore, a heat dissipation member 220 is provided to effectively dissipate and cool the switching element 210.

[0170]

[0189] The heat dissipation member 220 receives the heat generated in the switching element 210 and dissipates the heat to the outside. At this time, the heat dissipated by the heat dissipation member 220 may be transferred to the fluid flowing in the second space 152. As a result, the switching element 210 may be cooled.

[0171]

[0190] The heat dissipation member 220 is accommodated in the second space 152. The heat dissipation member 220 is located adjacent to the switching element 210. In one embodiment, the heat dissipation member 220 is in contact with the switching element 210 and may receive heat in the form of conduction. In the illustrated embodiment, the heat dissipation member 220 is located below the switching element 210 and an upper surface thereof is in contact with a lower surface of the switching element 210.

[0172]

[0191] The heat dissipation member 220 may be provided in any form capable of receiving heat from the switching element 210 and transferring the transferred heat back to the fluid flowing into the second space 152. In one embodiment, the heat dissipation member 220 may be formed by arranging a plurality of fins spaced apart from each other.

[0173]

[0192] The heat dissipation member 220 is supported by the second housing 120. In the embodiment shown in FIG.

[0174]

[0193] The substrate 230 receives a control signal for the operation of the power device 10. The substrate 230 also controls the switching element 210 and the capacitor 250 according to the applied control signal. The substrate 230 is electrically connected to the terminal unit 140, the switching element 210, and the capacitor 250.

[0175]

[0194] The substrate 230 may be provided in any form capable of receiving a control signal from an external source and controlling the switching element 210 and the capacitor 250 in response to the applied control signal. In the illustrated embodiment, the substrate 230 may be provided as a printed circuit board (PCB).

[0176]

[0195] In this embodiment, the substrate 230 is a PCB, and the operating principle of the PCB is a well-known technology, so a detailed description will be omitted.

[0177]

[0196] A plurality of substrates 230 may be provided. The substrates 230 may be spaced apart from each other but may be electrically connected to each other. Furthermore, the substrates 230 may be electrically connected to the terminals 140, the switching elements 210, and the capacitors 250, respectively.

[0178]

[0197] In the illustrated embodiment, three substrates 230 are provided, including a first substrate 231, a second substrate 232, and a third substrate 233. The first substrate 231, the second substrate 232, and the third substrate 233 are stacked and spaced apart from each other in the height direction of the housing 100, which is the up-down direction in the illustrated embodiment.

[0179]

[0198] In the illustrated embodiment, the substrate 230 is disposed to be spaced apart from the heat dissipation member 220. Therefore, heat generated in the substrate 230 is difficult to be transferred to the heat dissipation member 220. Similarly, heat generated in any electrical element coupled to the substrate 230 is also difficult to be transferred to the heat dissipation member 220.

[0180]

[0199] Therefore, the power device 10 according to the embodiment of the present invention includes the flow path module 11, and a fluid can flow between the plurality of substrates 230. Accordingly, the plurality of substrates 230 and the electrical elements coupled to each of the plurality of substrates 230 can be effectively cooled, as will be described in detail later.

[0181]

[0200] In the illustrated embodiment, the first substrate 231 is located at the bottom, the third substrate 233 is located at the top, and the second substrate 232 is located between the first substrate 231 and the third substrate 233. That is, the first substrate 231, the second substrate 232, and the third substrate 233 are stacked in order.

[0182]

[0201] At this time, the first substrate 231, the second substrate 232, and the third substrate 233 are disposed at a predetermined distance from each other. Therefore, a space is formed between each of the substrates 231, 232, and 233. In the illustrated embodiment, three substrates 230 are provided, and thus three spaces may also be formed.

[0183]

[0202] 4, the space formed above the first substrate 231 may be defined as a first flow space S1. At the same time, the first flow space S1 may also be defined as a space formed below the second substrate 232. Therefore, the first flow space S1 may be defined as a space formed between the first substrate 231 and the second substrate 232.

[0184]

[0203] In addition, the space formed above the second substrate 232 may be defined as the second flow space S2. At the same time, the second flow space S2 may also be defined as the space formed below the third substrate 233. Therefore, the second flow space S2 may be defined as the space formed between the second substrate 232 and the third substrate 233.

[0185]

[0204] Further, the space formed above the third substrate 233 may be defined as the third flow space S3. At the same time, the third flow space S3 may be defined as the space formed below the upper surface of the first housing 110. Therefore, the third flow space S3 may be defined as the space formed between the third substrate 233 and the upper surface of the first housing 110.

[0186]

[0205] Therefore, it can be understood that the plurality of substrates 230 and the plurality of flow spaces S1, S2, S3 are arranged and formed so as to be alternately stacked.

[0187]

[0206] The flow passage module 11 described below may be configured to divide an externally-inflowed fluid. The divided fluid may flow through each of the flow spaces S1, S2, and S3 through the flow passage module 11. Accordingly, the substrate 230 and the electrical elements coupled to the substrate 230 may be effectively cooled. This will be described in detail later.

[0188]

[0207] A substrate communication hole 240 is formed inside the substrate 230 .

[0189]

[0208] The substrate communication holes 240 are formed to penetrate the inside of the substrate 230. The substrate communication holes 240 are formed to penetrate the substrate 230 in the thickness direction, that is, in the vertical direction in the illustrated embodiment, and communicate a plurality of flow spaces S1, S2, and S3 arranged to face each other across the substrate 230.

[0190]

[0209] The substrate communication holes 240 may be formed in each of the substrates 230. In the illustrated embodiment, three substrates 230 are provided, including a first substrate 231, a second substrate 232, and a third substrate 233. Thus, three substrate communication holes 240 may also be provided, including a first substrate communication hole 241, a second substrate communication hole 242, and a third substrate communication hole 243.

[0191]

[0210] At this time, the first substrate communicating hole 241, the second substrate communicating hole 242, and the third substrate communicating hole 243 are communicated with each other. The fluid that has flowed into the inside of the housing 100 can pass through the first substrate communicating hole 241, the second substrate communicating hole 242, and the third substrate communicating hole 243 in this order.

[0192]

[0211] The first substrate communication hole 241 is formed penetrating the inside of the first substrate 231 in the thickness direction thereof. The first substrate communication hole 241 is connected to the flow path module 11.

[0193]

[0212] Specifically, one side of the first substrate communication hole 241 facing the second space 152, that is, the lower side in the illustrated embodiment, is connected to the dividing space 320 of the flow path dividing member 300 and the duct member 400 connected thereto. The other side of the first substrate communication hole 241 facing the first housing 110, that is, the upper side in the illustrated embodiment, is connected to the vortex forming member 500, specifically, the first vortex forming member 500a.

[0194]

[0213] A portion of the fluid flow paths divided by the flow path dividing member 300 may extend to the first substrate communication hole 241 via the dividing space 320 and the duct member 400. In addition, the portion of the flow path may extend to the vortex flow forming member 500.

[0195]

[0214] The second substrate communication hole 242 is formed penetrating the inside of the second substrate 232 in the thickness direction thereof. The second substrate communication hole 242 is communicated with the flow path module 11 so that the fluid that has passed through the first substrate communication hole 241 can flow.

[0196]

[0215] Specifically, one side of the second substrate communication hole 242 facing the second space 152, that is, the lower side in the illustrated embodiment, is connected to the vortex forming member 500, specifically, the first vortex forming member 500a. Accordingly, the second substrate communication hole 242 can be connected to the first substrate communication hole 241.

[0197]

[0216] Also, the other side of the second board communication hole 242 facing the first housing 110, ie, the upper side in the illustrated embodiment, is communicated with the vortex forming member 500, specifically, the second vortex forming member 500b.

[0198]

[0217] A portion of the fluid that has flowed into the first vortex flow forming member 500a flows out to the first flow space S1. Another portion of the fluid that has flowed into the first vortex flow forming member 500a may flow through the second substrate communication hole 242 to the second vortex flow forming member 500b.

[0199]

[0218] The third substrate communication hole 243 is formed penetrating in the thickness direction of the third substrate 233. The third substrate communication hole 243 is communicated with the flow path module 11, so that the fluid that has passed through the second substrate communication hole 242 can flow.

[0200]

[0219] Specifically, one side of the third substrate communication hole 243 facing the second space 152, ie, the lower side in the illustrated embodiment, communicates with the vortex forming member 500, specifically, the second vortex forming member 500b.

[0201]

[0220] In addition, the other side of the third board communication hole 243 facing the first housing 110 , that is, the upper side in the illustrated embodiment, communicates with the first space 151 .

[0202]

[0221] A part of the fluid that has flowed into the second vortex flow forming member 500b flows out into the second flow space S2. Another part of the fluid that has flowed into the second vortex flow forming member 500b may flow into the first space 151 through the third substrate communication hole 243.

[0203]

[0222] In the illustrated embodiment, the first substrate through-hole 241, the second substrate through-hole 242, and the third substrate through-hole 243 are arranged to overlap in the height direction of the housing 100, that is, in the vertical direction in the illustrated embodiment.

[0204]

[0223] In addition, the first substrate communication hole 241, the second substrate communication hole 242 and the third substrate communication hole 243 are arranged to overlap a part of the flow path module 11, specifically the duct member 400 and the vortex forming member 500, in the height direction of the housing 100, and in the vertical direction in the illustrated embodiment.

[0205]

[0224] At this time, as described later, the duct member 400 extends so as to be inclined along the front-rear direction. Therefore, it will be understood that the first substrate communication hole 241 and the support through-hole 161 coupled to each end of the duct member 400 are not arranged so as to overlap in the vertical direction.

[0206]

[0225] The first substrate communication hole 241, the second substrate communication hole 242 and the third substrate communication hole 243 may be arranged in any manner that allows them to be connected to the flow path module 11 and to allow fluid flowing in from the outside to flow in the first to third flow spaces S1, S2, and S3.

[0207]

[0226] The first substrate communication hole 241, the second substrate communication hole 242, and the third substrate communication hole 243 may be formed in any shape that can communicate with the flow path module 11. In the illustrated embodiment, the first substrate communication hole 241, the second substrate communication hole 242, and the third substrate communication hole 243 are disk-shaped having a circular cross section and extending in the vertical direction.

[0208]

[0227] The shapes of the first substrate communicating hole 241 , the second substrate communicating hole 242 and the third substrate communicating hole 243 can be changed depending on the shape of the duct member 400 or the vortex flow forming member 500 .

[0209]

[0228] The capacitor 250 supplies the power necessary for the switching element 210 and the substrate 230 to operate. The capacitor 250 is electrically connected to the switching element 210 and the substrate 230.

[0210]

[0229] The capacitor 250 can receive and store power from an external power source. The capacitor 250 can be electrically connected to the external power source through the terminal unit 140.

[0211]

[0230] The capacitor 250 is housed inside the housing 100. In the illustrated embodiment, the capacitor 250 is housed in a second space 152 formed inside the second housing 120.

[0212]

[0231] The capacitor 250 is coupled to the substrate 230, specifically, to the first substrate 231 located at the bottom. The capacitor 250 is electrically connected to the first substrate 231, and can transmit power.

[0213]

[0232] Accordingly, the components of the current-carrying unit 200, that is, the switching element 210, the substrate 230, and the capacitor 250, can be mutually energized.

[0214]

[0233] There may be a plurality of capacitors 250. The plurality of capacitors 250 may be electrically connected to the terminal portion 140, the switching element 210, and the substrate 230, respectively.

[0215]

[0234] The process of storing power in the capacitor 250 and transferring the stored power to other components is a well-known technique, so a detailed description thereof will be omitted.

[0216]

[0235] 3. Description of the configuration of the flow path module 11 according to the embodiment of the present invention

[0236] 2 to 5, the electric power device 10 according to the embodiment of the present invention includes a flow path module 11.

[0217]

[0237] The flow path module 11 is provided in the power equipment 10 and forms various types of flow of the fluid that has flowed into the power equipment 10. The flow path module 11 allows the flow of the fluid to various positions. In addition, the flow path module 11 allows the flow of the fluid to form a vortex. As a result, cooling of the components accommodated inside the power equipment 10 can be effectively performed.

[0218]

[0238] The flow path module 11 is accommodated inside the housing 100. Specifically, a part of the flow path module 11 is accommodated inside the first housing 110, and another part of the flow path module 11 is accommodated inside the second housing 120. With reference to FIGS. 3 and 4 , the flow path dividing member 300 and the duct member 400 are located in the second space 152, and the vortex flow forming member 500 is located in the first space 151.

[0219]

[0239] The flow path module 11 is coupled to other components of the power device 10. In the illustrated embodiment, the flow path module 11 is coupled to the support plate 160 and the substrate 230, respectively.

[0220]

[0240] The flow passage module 11 communicates with various spaces formed inside the electric power device 10. In the illustrated embodiment, the flow passage module 11 communicates with the first space 151, the second space 152, the first flow space S1, the second flow space S2, and the third flow space S3, respectively.

[0221]

[0241] Accordingly, the fluid flowing into the second space 152 from the outside can flow along the flow path module 11 to other spaces 151, S1, S2, and S3. A detailed description of the fluid flow path formed by the flow path module 11 will be given later.

[0222]

[0242] Hereinafter, the flow path module 11 according to the embodiment of the present invention will be described in detail with further reference to FIGS. 2 to 5 and 6 to 13 again.

[0223]

[0243] In the illustrated embodiment, the flow path module 11 includes a flow path dividing member 300, a duct member 400, and a vortex flow forming member 500. The flow path dividing member 300, the duct member 400, and the vortex flow forming member 500 are in communication with each other.

[0224]

[0244] The flow path dividing member 300 divides the fluid that has flowed from the outside into the inside of the housing 100. The flow path dividing member 300 is located inside the second housing 120.

[0225]

[0245] The flow path dividing member 300 is connected to the second space 152, so that a portion of the fluid flowing in the second space 152 may be divided and flow into the flow path dividing member 300. At this time, as described above, a transport force for the fluid to flow from the outside into the second space 152 is provided by the blower 130.

[0226]

[0246] The flow path dividing member 300 is coupled to the support plate 160. The flow path dividing member 300 is in communication with the support through holes 161 formed inside the support plate 160. The divided fluid can pass through the support through holes 161 via the flow path dividing member 300.

[0227]

[0247] In the illustrated embodiment, the flow path dividing member 300 is located between the heat dissipation member 220 and the capacitor 250. In addition, the flow path dividing member 300 is coupled to the lower side of the support plate 160.

[0228]

[0248] The position of the flow path dividing member 300 can be any position that can divide the fluid that has flowed into the second space 152 and guide the divided fluid to the support through-hole 161, and can be connected to any member.

[0229]

[0249] The flow path dividing member 300 is in communication with the duct member 400. The fluid divided by the flow path dividing member 300 can flow into the duct member 400 by passing through the flow path dividing member 300 and the support through-hole 161 in this order.

[0230]

[0250] Referring to FIG. 6, the illustrated embodiment of a flow path dividing member 300 includes a dividing body 310 , a dividing space 320 and a coupling protrusion 330 .

[0231]

[0251] The divided body 310 forms a body of the flow path dividing member 300. The divided body 310 essentially performs a role of dividing the fluid flowing in the second space 152.

[0232]

[0252] The divided body 310 is coupled to the support plate 160. In one embodiment, the divided body 310 may be tightly coupled to the support plate 160. Accordingly, the divided fluid may flow toward the duct member 400 without returning to the second space 152 again.

[0233]

[0253] The divided body 310 may have any shape capable of dividing the fluid that has flowed into the second space 152 and guiding it toward the duct member 400. In the illustrated embodiment, the divided body 310 is formed such that one side opposite the blower 130, i.e., the rear side, is inclined.

[0234]

[0254] Therefore, in the above embodiment, the fluid divided by the divided body 310 flows along the rear side formed to be inclined toward the support plate 160 and can smoothly proceed to the duct member 400 .

[0235]

[0255] A divided space 320 is formed inside the divided body 310. The divided body 310 is formed to at least partially surround the divided space 320. In the illustrated embodiment, the divided body 310 is formed to surround the divided space 320 on the left side, right side, lower side, and rear side.

[0236]

[0256] The divided body 310 is continuous with the connecting protrusion 330. The divided body 310 can be connected to the support plate 160 by the connecting protrusion 330.

[0237]

[0257] In the illustrated embodiment, the split body 310 includes a first split surface 311 , a second split surface 312 , a third split surface 313 , a fourth split surface 314 and a joining surface 315 .

[0238]

[0258] The first dividing surface 311 forms one surface of the divided body 310. The first dividing surface 311 is disposed to surround the dividing space 320 on one side. In the illustrated embodiment, the first dividing surface 311 forms the lower surface of the front of the divided body 310.

[0239]

[0259] The first dividing surface 311 partially surrounds the dividing space 320. In the illustrated embodiment, the first dividing surface 311 is disposed to surround the lower front side of the dividing space 320.

[0240]

[0260] The first dividing surface 311 may be formed to extend in its width direction and length direction. In the illustrated embodiment, the first dividing surface 311 is formed to have a shorter extension length in the front-rear direction than in the left-right direction.

[0241]

[0261] The first dividing surface 311 may extend in the direction of fluid flow, i.e., the front-rear direction, while forming a predetermined angle. In one embodiment, the first dividing surface 311 may extend in the front-rear direction so as to be parallel to the substrate 230.

[0242]

[0262] The first divided surface 311 is continuous with the second divided surface 312 at a predetermined angle.

[0243]

[0263] The second dividing surface 312 forms the other side of the divided body 310. The second dividing surface 312 is disposed to surround the dividing space 320 on the other side. In the illustrated embodiment, the second dividing surface 312 forms the rear side of the divided body 310.

[0244]

[0264] The second dividing surface 312 partially surrounds the dividing space 320. In the illustrated embodiment, the second dividing surface 312 is disposed to surround the rear side of the dividing space 320.

[0245]

[0265] The second dividing surface 312 guides the fluid that has entered the dividing space 320. The fluid that has entered the dividing space 320 may flow along the second dividing surface 312 toward the support through-hole 161 and the duct member 400.

[0246]

[0266] The second dividing surface 312 may be formed to extend in both the width direction and the length direction thereof. In the illustrated embodiment, the second dividing surface 312 is formed to have a longer extension length in the front-rear direction than in the left-right direction.

[0247]

[0267] The second dividing surface 312 may extend in the direction of fluid flow, i.e., the front-rear direction, at a predetermined angle. In the illustrated embodiment, the second dividing surface 312 extends with an inclination toward the upper rear side. That is, the second dividing surface 312 may be defined as an inclined surface for guiding the inflowing fluid.

[0248]

[0268] The width directions of first divided surface 311 and second divided surface 312 are joined to third divided surface 313 and fourth divided surface 314, respectively.

[0249]

[0269] The third dividing surface 313 and the fourth dividing surface 314 respectively form the other side of the divided body 310. The third dividing surface 313 and the fourth dividing surface 314 are disposed to surround the dividing space 320 on the other side. In the illustrated embodiment, the third dividing surface 313 and the fourth dividing surface 314 respectively form the left side and the right side of the divided body 310.

[0250]

[0270] The third dividing surface 313 and the fourth dividing surface 314 partially surround the dividing space 320. In the illustrated embodiment, the third dividing surface 313 and the fourth dividing surface 314 are disposed to surround the left and right sides of the dividing space 320, respectively.

[0251]

[0271] The third dividing surface 313 and the fourth dividing surface 314 guide the fluid that has entered the dividing space 320 so that it does not escape in the width direction, or in the left and right direction in the illustrated embodiment. The fluid that has entered the dividing space 320 is guided by the third dividing surface 313 and the fourth dividing surface 314 and can flow toward the duct member 400 without flowing out in the width direction.

[0252]

[0272] The third dividing surface 313 and the fourth dividing surface 314 may have any shape that can be combined with the first dividing surface 311 and the second dividing surface 312 to enclose the dividing space 320. In the illustrated embodiment, the third dividing surface 313 and the fourth dividing surface 314 have cross-sectional shapes that are trapezoidal with parallel upper and lower sides.

[0253]

[0273] In this case, the cross section of the third divided surface 313 and the cross section of the fourth divided surface 314 are formed so that the upper extension length is longer than the lower extension length. Accordingly, it will be understood that the rear corners of the cross sections of the third divided surface 313 and the fourth divided surface 314 extend so as to incline upward.

[0254]

[0274] The coupling surface 315 is a portion where the flow path dividing member 300 comes into contact with the support plate 160 or the duct member 400. The coupling surface 315 may be tightly coupled to the support plate 160 or the duct member 400. Accordingly, no gap is generated between the coupling surface 315 and the support plate 160 or the duct member 400, so that the fluid that has flowed into the dividing space 320 may flow toward the duct member 400.

[0255]

[0275] The coupling surface 315 may be formed on one side of the body segment 310 facing the support plate 160 or the duct member 400. In the illustrated embodiment, the coupling surface 315 forms an upper surface of the body segment 310. In the embodiment, the coupling surface 315 may extend parallel to the support plate 160.

[0256]

[0276] The coupling surface 315 may be formed to extend along the upper end of the divided body 310. In other words, the coupling surface 315 forms the upper surface of the divided body 310. In the above embodiment, the coupling surface 315 may be formed to have a bracket shape.

[0257]

[0277] In the above embodiment, a pair of portions of the coupling surface 315 may be disposed to face each other across the dividing space 320. In the illustrated embodiment, a left portion and a right portion of the coupling surface 315 are disposed to face each other across the dividing space 320.

[0258]

[0278] A coupling protrusion 330 is located on the pair of portions.

[0259]

[0279] The divided space 320 is a space into which the fluid flows and is divided by flowing into the second space 152. The divided space 320 is in communication with the second space 152 so that the divided fluid can flow in.

[0260]

[0280] The partition space 320 is in communication with the support through-hole 161 and the duct member 400. The fluid that has flowed into the partition space 320 can flow into the inside of the duct member 400 through the support through-hole 161.

[0261]

[0281] The divided space 320 is formed inside the divided body 310. More specifically, the divided space 320 may be surrounded by a plurality of faces constituting the divided body 310. As described above, the divided space 320 is partially surrounded by the first to fourth divided faces 311, 312, 313, and 314.

[0262]

[0282] The partition space 320 is in communication with the outside. In the illustrated embodiment, the front side of the partition space 320 in the direction in which the fluid flows into the second space 152 is open and in communication with the second space 152. The fluid in the second space 152 can flow into the partition space 320 through the front side.

[0263]

[0283] In addition, in the illustrated embodiment, the upper side of the partition space 320, in the direction in which the fluid flows out of the partition space 320, is also open and communicates with the support through-holes 161 and the duct hollow 420. The fluid flowing in the partition space 320 can flow into the support through-holes 161 and the duct hollow 420 through the upper side.

[0264]

[0284] It will be understood that the reason why the fluid that has flowed into dividing space 320 moves in an upwardly inclined manner is due to the shape of second dividing surface 312 .

[0265]

[0285] The partition space 320 may have any shape that allows a fluid to flow therethrough. As described above, in the illustrated embodiment, the partition space 320 is bounded on its lower front side by the first partition surface 311 and on its rear side by the second partition surface 312. The left and right sides of the partition space 320 are bounded by the third partition surface 313 and the fourth partition surface 314, respectively.

[0266]

[0286] Accordingly, the fluid that has flowed into the second space 152 flows forward into the partition space 320, and then flows in an upwardly inclined manner, and can flow into the support through-hole 161 and the duct hollow 420 through the upper side.

[0267]

[0287] The coupling protrusion 330 is a portion where the flow path dividing member 300 is coupled to the support plate 160. The coupling protrusion 330 is formed to protrude from the divided body 310 in a direction toward the support plate 160, that is, upward in the illustrated embodiment.

[0268]

[0288] The coupling protrusion 330 is located on one side of the divided body 310 facing the support plate 160. In the illustrated embodiment, the coupling protrusion 330 is located on a coupling surface 315 located on the upper side of the divided body 310.

[0269]

[0289] In one embodiment, the coupling protrusion 330 may be fitted to the support plate 160. In the above embodiment, a groove into which the coupling protrusion 360 is inserted may be recessed or penetrated inside the support plate 160.

[0270]

[0290] The coupling protrusion 330 may be provided in any shape that can be coupled to the support plate 160. In the illustrated embodiment, the coupling protrusion 330 is formed to have a rectangular cross section in the horizontal direction and a certain height in the vertical direction.

[0271]

[0291] There may be a plurality of coupling protrusions 330. The coupling protrusions 330 may be spaced apart from one another and coupled to the support plate 160 at different positions.

[0272]

[0292] In the illustrated embodiment, the coupling protrusions 330 are provided in a pair, including a first coupling protrusion 331 located on the left side and a second coupling protrusion 332 located on the right side. The first coupling protrusion 331 and the second coupling protrusion 332 are arranged to be spaced apart in the left-right direction. In other words, the pair of coupling protrusions 330 are arranged to face each other in the width direction of the partition space 320 with the partition space 320 in between.

[0273]

[0293] Therefore, since the multiple coupling protrusions 330 are coupled to the support plate 160 at multiple positions, the coupled state of the flow path dividing member 300 and the support plate 160 can be stably maintained.

[0274]

[0294] The duct member 400 communicates with the flow path dividing member 300 and the vortex flow creating member 500. The fluid that has been divided by the flow path dividing member 300 and passed through the support through-hole 161 can flow into the duct member 400.

[0275]

[0295] The duct member 400 is positioned between the support plate 160 and the substrate 230. The duct member 400 is coupled to the support plate 160 and the substrate 230, respectively. In the illustrated embodiment, a lower end of the duct member 400 is coupled to the support plate 160 and an upper end of the duct member 400 is coupled to the substrate 230.

[0276]

[0296] The duct member 400 is in communication with the flow path dividing member 300 and the vortex flow creating member 500 .

[0277]

[0297] Specifically, the duct member 400 communicates with the partition space 320 through the support through hole 161. The fluid that has flowed into the second space 152 can flow into the inside of the duct member 400 through the partition space 320 and the support through hole 161 in that order. The inside of the duct member 400 communicates with both the support through hole 161 and the partition space 320.

[0278]

[0298] In addition, the duct member 400 is connected to the vortex cavities 530, 540 formed inside the vortex forming member 500 through the substrate connecting hole 240. Fluid that has flowed into the inside of the duct member 400 can flow into the vortex cavities 530, 540 through the substrate connecting hole 240. The inside of the duct member 400 is connected to the substrate connecting hole 240 and the vortex cavities 530, 540, respectively.

[0279]

[0299] The duct member 400 may extend at a predetermined angle based on the vertical direction. In the illustrated embodiment, the lower end of the duct member 400 is positioned toward the front side, and the upper end of the duct member 400 is positioned toward the rear side. That is, in the illustrated embodiment, the cross section of the duct member 400 is formed in an "S" shape.

[0280]

[0300] Depending on the shape of the duct member 400, the inner surface of the duct member 400 may be formed to have an inclination corresponding to the second dividing surface 312 of the flow path dividing member 300. In one embodiment, the inner surface of the duct member 400 may be formed to have the same inclination as the second dividing surface 312 with respect to the horizontal direction.

[0281]

[0301] Accordingly, flow resistance within the duct member 400 is minimized, allowing the fluid to flow smoothly.

[0282]

[0302] The duct member 400 may be formed of a flexible material so that it will not be arbitrarily separated from the support plate 160 or the substrate 230 due to vibrations that occur as the power equipment 10 operates.

[0283]

[0303] The duct member 400 may be formed of an electrically insulating material to prevent any electrical conduction between the support plate 160 and the substrate 230 to which the duct member 400 is coupled.

[0284]

[0304] The duct member 400 may be made of a thermally insulating material to prevent heat transfer between the support plate 160 and the substrate 230.

[0285]

[0305] In one embodiment, the duct member 400 may be made of a rubber or silicon material.

[0286]

[0306] For ease of understanding, in Figures 7 and 8, the duct member 400 is illustrated as being directly coupled to the vortex flow creating member 500. However, it will be understood that a plurality of substrates 230 may be coupled between the duct member 400 and the plurality of vortex flow creating members 500.

[0287]

[0307] In the embodiment shown in FIGS. 9-10, the duct member 400 includes a duct body 410 , a duct cavity 420 and a duct angle 430 .

[0288]

[0308] The duct body 410 forms the body of the duct member 400. The duct body 410 is a portion where the duct member 400 is coupled to the support plate 160 and the substrate 230. The duct body 410 extends between the support plate 160 and the substrate 230. As described above, the support plate 160 and the substrate 230 are stacked and spaced apart in the vertical direction. Therefore, it can be said that the duct body 410 extends in the vertical direction.

[0289]

[0309] Among the ends in the extension direction of the duct body 410, one end facing the support plate 160, in the illustrated embodiment, the lower end, may be coupled to the support plate 160. In an embodiment in which the support through-hole 161 is formed sufficiently large, the one end of the duct body 410 may be directly coupled to the coupling surface 315 of the flow path dividing member 300.

[0290]

[0310] Among the ends in the extension direction of the duct body 410, the other end toward the substrate 230, that is, the upper end in the illustrated embodiment, can be coupled to the substrate 230, specifically, the first substrate 231 located at the lowest position among the plurality of substrates 230.

[0291]

[0311] At this time, the duct body 410 may be coupled to the support plate 160 and the substrate 230 by covering the support through-hole 161 and the substrate communication hole 240, respectively.

[0292]

[0312] A duct cavity 420 is formed inside the duct body 410. The inner surface of the duct body 410 extends radially to surround the duct cavity 420. As described above, the inner surface of the duct body 410 extends in a direction from the front to the rear so as to be inclined upward.

[0293]

[0313] In other words, the inner surface of the duct body 410 is extended and inclined with respect to the support plate 160 or the first substrate 231 .

[0294]

[0314] In one embodiment, a separate bending part may not be formed on the inner surface of the duct body 410. In other words, the inner surface of the duct body 410 may extend smoothly, though it is inclined. Therefore, the flow resistance of the fluid inside the duct body 410 may be minimized, and the fluid may flow smoothly.

[0295]

[0315] The duct cavity 420 is a space through which the fluid divided by the flow path dividing member 300 flows. The duct cavity 420 is formed inside the duct body 410. The duct cavity 420 is formed to extend in the direction in which the duct body 410 extends, i.e., from the front side to the rear side in the illustrated embodiment, so as to incline upward.

[0296]

[0316] Each end in the extension direction of the duct hollow 420, that is, the upper end and the lower end in the illustrated embodiment, is formed open. In other words, the duct hollow 420 is formed penetrating the inside of the duct body 410 along the extension direction of the duct body 410.

[0297]

[0317] The duct cavity 420 communicates with the division space 320 and the vortex cavities 530, 540, respectively.

[0298]

[0318] Specifically, among the ends of the duct hollow 420 in the extension direction, one end facing the flow path dividing member 300, i.e., the lower end in the illustrated embodiment, is connected to the dividing space 320. At this time, the one end of the duct hollow 420 can be connected to the dividing space 320 through a support through hole 161 formed in the support plate 160.

[0299]

[0319] Of the ends in the extension direction of the duct hollow 420, the other end facing the substrate 230 or the vortex forming member 500, i.e., the upper end in the illustrated embodiment, is connected to the vortex hollows 530, 540. At this time, the other end of the duct hollow 420 can be connected to the vortex hollows 530, 540 through the substrate 230, specifically, the first substrate 231, via a first substrate communication hole 241 formed inside the substrate 230.

[0300]

[0320] The duct angle 430 is a portion where the duct member 400 is coupled to the flow path dividing member 300. The duct angle 430 is formed on the inner and outer surfaces of the duct body 410, respectively.

[0301]

[0321] In the illustrated embodiment, the duct angle 430 includes a first portion extending horizontally toward the duct cavity 420 and a second portion that is continuous with the first portion and extends vertically toward the support plate 160. That is, in the illustrated embodiment, the duct angle 430 has a cross section in the shape of one corner of a rectangle.

[0302]

[0322] The duct angle 430 may be coupled to the coupling surface 315 of the flow path dividing member 300. In one embodiment, the duct angle 430 and the coupling surface 315 may be tightly coupled to each other, blocking any communication between the duct cavity 420 and the outside.

[0303]

[0323] In another embodiment, the duct angle 430 may be coupled to the support plate 160. That is, in the above embodiment, the duct member 400 may be coupled to the flow path dividing member 300 via the support plate 160. In this case, the support plate 160 may be provided with a component, such as a protrusion, for coupling with the duct angle 430.

[0304]

[0324] In either case, it is sufficient to prevent the fluid that has flowed into the partition space 320 and passed through the support through-hole 161 from flowing to a location other than the duct hollow 420.

[0305]

[0325] The duct member 400 is coupled to the vortex flow creating member 500. The duct member 400 is in communication with the vortex flow creating member 500.

[0306]

[0326] The vortex flow-generating member 500 functions as a passage through which the fluid that has passed through the duct member 400, i.e., the fluid divided by the flow path dividing member 300, is discharged between the plurality of substrates 230. The vortex flow-generating member 500 allows the cooling fluid to flow in the spaces between the plurality of substrates 230, i.e., the first to third flow spaces S1, S2, and S3.

[0307]

[0327] Accordingly, the substrate 230, which does not have a separate heat dissipation member, can also be effectively cooled.

[0308]

[0328] 4 again, the vortex-generating member 500 is disposed between the plurality of substrates 230. As described above, the plurality of substrates 230 are stacked at a distance from each other in the vertical direction. Therefore, it can be said that the vortex-generating member 500 is alternately disposed with the plurality of substrates 230 in the vertical direction.

[0309]

[0329] The vortex-forming members 500 are respectively connected to the plurality of substrates 230. The vortex-forming members 500 extend between the plurality of substrates 230 that are stacked apart from each other. In the illustrated embodiment, the vortex-forming members 500 are formed to extend in the vertical direction.

[0310]

[0330] Of the ends in the extension direction of the vortex-generating member 500, one end facing the first housing 110, in the illustrated embodiment the upper end, is coupled to the substrate 230 located relatively above. Of the ends in the extension direction of the vortex-generating member 500, the other end facing the second housing 120, in the illustrated embodiment the lower end, is coupled to the substrate 230 located relatively below.

[0311]

[0331] The vortex-forming member 500 may be made of an electrically insulating material in order to prevent any electrical conduction between the substrates 230 when the vortex-forming member 500 is coupled to the substrates 230 that are different from each other.

[0312]

[0332] The vortex flow-generating member 500 may be made of a thermal insulating material. The fluid discharged from the vortex flow-generating member 500 to the first to third flow spaces S1, S2, and S3 is configured to cool the substrate 230. Therefore, it is preferable that the vortex flow-generating member 500 is made of a thermal insulating material so that it is maintained at a lower temperature than the first to third flow spaces S1, S2, and S3 and the substrate 230.

[0313]

[0333] The vortex-forming member 500 is connected to the duct member 400. Specifically, the other end of the vortex-forming member 500, which is the lower end in the illustrated embodiment, is connected to the duct hollow 420 through the substrate communication hole 240.

[0314]

[0334] The vortex flow creating member 500 communicates with the first to third flow spaces S1, S2, and S3. The fluid flowing inside the vortex flow creating member 500 can be discharged into the first to third flow spaces S1, S2, and S3.

[0315]

[0335] There may be a plurality of vortex-forming members 500. The plurality of vortex-forming members 500 may be arranged in a direction in which the plurality of substrates 230 are stacked apart from each other, that is, in the vertical direction in the illustrated embodiment.

[0316]

[0336] A plurality of vortex-forming members 500 may be connected to each other. Specifically, the lower end of the vortex-forming member 500 located relatively above is connected to the upper end of the vortex-forming member 500 located relatively below via the substrate communication hole 240.

[0317]

[0337] In the illustrated embodiment, two vortex forming members 500 are provided, including a first vortex forming member 500a and a second vortex forming member 500b.

[0318]

[0338] The first vortex flow generating member 500a is located between the first substrate 231 and the second substrate 232. Therefore, it can be said that the first vortex flow generating member 500a is located in the first flow space S1.

[0319]

[0339] A lower end of the first vortex forming member 500a is coupled to the first substrate 231 and communicates with the first substrate communicating hole 241. An upper end of the first vortex forming member 500a is coupled to the second substrate 232 and communicates with the second substrate communicating hole 242.

[0320]

[0340] The second vortex generating member 500b is located between the second substrate 232 and the third substrate 233. Therefore, it can be said that the second vortex generating member 500b is located in the second flow space S2.

[0321]

[0341] A lower end of the second vortex forming member 500b is coupled to the second substrate 232 and communicates with the second substrate communication hole 242. Through this communication, the first vortex forming member 500a and the second vortex forming member 500b may communicate with each other.

[0322]

[0342] In addition, an upper end of the second vortex forming member 500b is coupled to the third substrate 233 and communicates with the third substrate communication hole 243. Through this communication, the second vortex forming member 500b may communicate with the third flow space S3.

[0323]

[0343] The number of vortex-forming members 500 may be changed. In this case, the number of vortex-forming members 500 may be changed to correspond to the number of substrates 230. That is, as described above, the vortex-forming member 500 is located between a pair of substrates 230 that are disposed adjacent to each other. Therefore, it will be understood that the number of vortex-forming members 500 may be one less than the number of substrates 230.

[0324]

[0344] Meanwhile, the number of vortex flow generating members 500 arranged in each of the flow spaces S1, S2, and S3 may be changed. In the illustrated embodiment, a single vortex flow generating member 500 is provided in each of the first flow space S1 and the second flow space S2. Alternatively, a plurality of vortex flow generating members 500 may be arranged in each of the flow spaces S1, S2, and S3.

[0325]

[0345] In the above embodiment, in order to prevent interference between the fluids discharged from the multiple vortex forming members 500, it is preferable that the virtual straight lines extending from the second vortex hollow 540 described below are arranged so as not to intersect with each other in the flow spaces S1, S2, and S3.

[0326]

[0346] The first vortex-generating member 500a and the second vortex-generating member 500b have the same structure, although there are differences in the components that are connected and communicated with each other. Therefore, in the following description, the first vortex-generating member 500a and the second vortex-generating member 500b will be referred to as the vortex-generating member 500 when describing the common parts.

[0327]

[0347] 11 to 13, the vortex-forming member 500 according to the illustrated embodiment includes a vortex body 510, a vortex arm 520, a first vortex cavity 530, a second vortex cavity 540, a vortex protrusion 550 and a vortex rib 560.

[0328]

[0348] The vortex body 510 forms a part of the outer shape of the vortex generating member 500. The vortex body 510 extends between a pair of adjacent substrates 230. In the illustrated embodiment, the vortex body 510 is formed to extend in the vertical direction.

[0329]

[0349] One end of the vortex body 510 in the extension direction, which is the upper end in the illustrated embodiment, is coupled to the relatively upper one of the pair of substrates 230. The other end of the vortex body 510 in the extension direction, which is the lower end in the illustrated embodiment, is coupled to the relatively lower one of the pair of substrates 230.

[0330]

[0350] At this time, each end of the vortex body 510 can be coupled to each substrate 230 by covering the substrate through-hole 240 .

[0331]

[0351] The vortex body 510 may have any shape in which the first vortex cavity 530 is formed inside and a fluid can flow through it. In the illustrated embodiment, the vortex body 510 has a circular outer periphery, but is formed to have a ring-shaped cross section with the first vortex cavity 530 formed therethrough.

[0332]

[0352] The vortex body 510 is coupled to the vortex arm 520. Through this coupling, the first vortex cavity 530 may be communicated with the second vortex cavity 540 formed inside the vortex arm 520.

[0333]

[0353] A vortex rib 560 is formed at the portion where the vortex body 510 and the vortex arm 520 are joined.

[0334]

[0354] The vortex arm 520 forms another part of the outer shape of the vortex generating member 500. The vortex arm 520 extends in another direction from the vortex body 510. In the illustrated embodiment, the vortex arm 520 extends in the horizontal direction.

[0335]

[0355] Each end of the vortex arm 520 in the extension direction is open and communicates with the outside. Through the communication, the vortex flow-forming member 500 can be communicated with the first flow space S1 and the second flow space S2. The fluid flowing through the vortex flow-forming member 500 can be discharged through the vortex arm 520 to the first flow space S1 or the second flow space S2.

[0336]

[0356] The vortex arm 520 may have any shape that can discharge the fluid that has flowed into the vortex forming member 500 to the first flow space S1 or the second flow space S2 by forming the second vortex hollow 540 therein. In the illustrated embodiment, the vortex arm 520 is circular, but is formed to have an annular cross section with the second vortex hollow 540 formed therethrough.

[0337]

[0357] The vortex arm 520 may be extended in any direction capable of discharging the fluid into the first flow space S1 or the second flow space S2. Referring again to Figures 2 to 5, the vortex arm 520 is extended in the width direction of the housing 100, i.e., in the left-right direction.

[0338]

[0358] Alternatively, the vortex arm 520 may be extended in the longitudinal direction, i.e., the front-rear direction, or in a diagonal direction, of the housing 100. In this case, the extension direction of the vortex arm 520 may be changed according to the arrangement of any heat-generating components, such as the substrate 230 or the switching element 210 coupled to the substrate 230, arranged in the first flow space S1 or the second flow space S2.

[0339]

[0359] In either case, the fluid discharged from the swirl arm 520 may flow in the first flow space S1 or the second flow space S2 to cool various components.

[0340]

[0360] A plurality of vortex arms 520 may be provided. The plurality of vortex arms 520 may be coupled to the vortex body 510 at different positions. In the illustrated embodiment, the vortex arm 520 includes a first arm 521 disposed on the left side of the vortex body 510 and a second arm 522 disposed on the right side of the vortex body 510. In the embodiment, the first arm 521 and the second arm 522 are disposed to face each other across the vortex body 510.

[0341]

[0361] In one embodiment, the vortex arms 520 may be provided in a plurality of pairs and may extend in different directions. In the illustrated embodiment, the vortex arms 520 are provided in a pair extending in the left-right direction, but additional pairs of vortex arms 520 extending in the front-back direction, diagonal direction, etc. may be provided.

[0342]

[0362] A vortex rib 560 is formed at a portion where the vortex arm 520 and the vortex body 510 are joined together. In addition, vortex protrusions 550 are formed on the inner surface adjacent to each end of the vortex arm 520.

[0343]

[0363] The first vortex hollow 530 is formed penetrating the inside of the vortex-forming member 500. The first vortex hollow 530 is connected to the duct member 400. The fluid passing through the duct member 400 may flow into the inside of the vortex-forming member 500 through the first vortex hollow 530.

[0344]

[0364] The first vortex cavity 530 extends along the extension direction of the vortex body 510. Each end of the first vortex cavity 530 in the extension direction is open and communicates with the outside. In the illustrated embodiment, the first vortex cavity 530 is formed to extend in the vertical direction in the same manner as the vortex body 510. The upper and lower ends of the first vortex cavity 530 are each formed to be open.

[0345]

[0365] In the case of the first vortex flow hollow 530 formed in the first vortex flow forming member 500a, its lower end is connected to the duct hollow 420 via the first substrate communication hole 241. In addition, in the above case, the upper end of the first vortex flow hollow 530 is connected to the lower end of the second vortex flow forming member 500b via the second substrate communication hole 242.

[0346]

[0366] Similarly, the lower end of the first vortex hollow 530 formed in the second vortex forming member 500b is connected to the upper end of the first vortex hollow 530 formed in the first vortex forming member 500a through the second substrate communicating hole 242. In the above case, the upper end of the first vortex hollow 530 is connected to the third flow space S3 through the third substrate communicating hole 243.

[0347]

[0367] The first vortex cavity 530 is in communication with the second vortex cavity 540 .

[0348]

[0368] The second vortex cavity 540 forms a path through which the fluid flowing in through the first vortex cavity 530 is discharged to each of the flow spaces S1 and S2. The second vortex cavity 540 is connected to the first vortex cavity 530.

[0349]

[0369] The second vortex cavity 540 is formed penetrating the inside of the vortex forming member 500. The second vortex cavity 540 extends along the extension direction of the vortex arm 520. Each end of the second vortex cavity 540 in the extension direction is open and communicates with the outside. In the illustrated embodiment, the second vortex cavity 540 is formed extending in the left-right direction in the same manner as the vortex arm 520. The second vortex cavity 540 extends across the first arm 521 and the second arm 522.

[0350]

[0370] As mentioned above, vortex protrusions 550 are formed on the inner surface of the vortex arm 520 surrounding each end of the second vortex cavity 540 .

[0351]

[0371] The vortex protrusions 550 form a vortex in the flow of the fluid discharged from the second vortex cavity 540 toward each of the flow spaces S1 and S2. The fluid is caused to swirl by the vortex protrusions 550 and enters the flow spaces S1 and S2.

[0352]

[0372] Accordingly, the contact area between the fluid and the substrate 230 is increased, and heat exchange therebetween can be activated, so that the substrate 230 can be effectively cooled by the flowing fluid.

[0353]

[0373] The vortex protrusions 550 are formed on an inner surface of the swirl arm 520. In the illustrated embodiment, the swirl protrusions 550 are formed on an inner surface of the swirl arm 520 adjacent the ends of the swirl arm 520.

[0354]

[0374] The vortex protrusions 550 may be provided in any shape capable of forming a vortex in the flow of the fluid discharged from the second vortex cavity 540. In the illustrated embodiment, the vortex protrusions 550 are protrusions extending radially inward from the vortex arms 520.

[0355]

[0375] Referring to FIG. 13, various variations of the vortex protrusions 550 are illustrated.

[0356]

[0376] 13(a), the vortex protrusions 550 may be provided in the shape of a blade. In the above embodiment, the vortex protrusions 550 may extend in a spiral shape from the radially outer side to the radially inner side of the vortex cavities 530 and 540. Accordingly, the flow of the fluid discharged while passing through the space between the vortex protrusions 550 may form a vortex.

[0357]

[0377] 13(b), the vortex protrusions 550 may be formed in a polygonal shape extending at an angle. In the above embodiment, the vortex protrusions 550 may be formed in a wing shape and extend from the radially outer side toward the radially inner side of the vortex cavities 530 and 540. Accordingly, the flow of the fluid discharged while passing through the space between the vortex protrusions 550 may form a vortex.

[0358]

[0378] Alternatively, the vortex protrusions 550 may be formed with rifling mark like protrusions or grooves.

[0359]

[0379] A plurality of vortex protrusions 550 may be provided. The plurality of vortex protrusions 550 may be spaced apart from one another along the inner surface of the vortex arm 520. In the illustrated embodiment, the plurality of vortex protrusions 550 are spaced apart from one another along the inner circumference of the vortex arm 520.

[0360]

[0380] The vortex protrusions 550 may be provided in a plurality of groups. The plurality of groups of vortex protrusions 550 may be arranged at different positions to form vortices in the flow of the fluid discharged through each end of the second vortex cavity 540. In the illustrated embodiment, the vortex protrusions 550 are provided in a pair of groups and are arranged adjacent to each end of the vortex arm 520 in the extending direction.

[0361]

[0381] The swirl rib 560 reinforces the connection between the swirl body 510 and the swirl arm 520. The swirl rib 560 is formed at a portion where the swirl body 510 and the swirl arm 520 are connected. In the illustrated embodiment, the swirl rib 560 is located below the swirl arm 520 and adjacent to the outer periphery of the swirl body 510.

[0362]

[0382] A plurality of vortex ribs 560 may be formed. The plurality of vortex ribs 560 may be located adjacent to each of the plurality of vortex arms 520. In the illustrated embodiment, two vortex ribs 560 may be provided and may be located adjacent to the first arm 521 and the second arm 522, respectively.

[0363]

[0383] A groove (not shown) may be formed radially inward of the portion where the vortex rib 560 is formed. The groove smoothly connects the inner surface of the vortex body 510 surrounding the first vortex hollow 530 and the inner surface of the vortex arm 520 surrounding the second vortex hollow 540.

[0364]

[0384] Accordingly, the fluid that has flowed into the first vortex cavity 530 can easily flow into the second vortex cavity 540 .

[0365]

[0385] 4. Description of fluid flow paths formed inside the electric power device 10 according to the embodiment of the present invention

[0386] The electric power device 10 according to the embodiment of the present invention described above includes a flow path module 11. The flow path module 11 forms a flow path through which a fluid can flow toward the substrate 230 that is difficult to be directly cooled by the heat dissipation member 220. Accordingly, the fluid that has flowed in to cool the components of the electric power device 10 flows in the substrate 230 or in a space between the substrates 230, and can exchange heat with the substrate 230.

[0366]

[0387] As a result, even if the heat dissipation member 220 is not provided adjacent to the substrate 230, the substrate 230 and elements coupled to the substrate 230 can be effectively cooled. Therefore, the cooling efficiency of the electric power device 10 can be improved, and the operational reliability of the electric power device 10 can be improved.

[0367]

[0388] Hereinafter, the fluid flow paths formed inside the electric power device 10 according to the embodiment of the present invention will be described with reference to Figs. 14 to 21. In the illustrated embodiment, the fluid flow paths are indicated by arrows. As described above, it will be understood that the fluid flow paths described below are formed by the fluid that flows in when the blower 130 is operated.

[0368]

[0389] 14 and 15, a fluid flow path formed inside a flow path module 11 according to an embodiment of the present invention is illustrated. For ease of understanding, the flow path dividing member 300, the support plate 160, and each substrate 230 are omitted from the illustration.

[0369]

[0390] The fluid that has flowed into the dividing space 320 of the flow path dividing member 300 passes through the support through-holes 161 formed in the support plate 160 and flows into the duct hollow 420. The fluid that has flowed into the duct hollow 420 flows into the first vortex hollow 530 that is connected thereto. At this time, it can be understood that the first vortex hollow 530 is formed inside the first vortex forming member 500a.

[0370]

[0391] The fluid flows along the first vortex hollow 530. When the fluid reaches the second vortex hollow 540, a portion of the fluid continues to flow along the first vortex hollow 530 and flows into the first vortex hollow 530 of the second vortex forming member 500b. Another portion of the fluid enters the second vortex hollow 540.

[0371]

[0392] At this time, a vortex protrusion 550 is formed on the inner peripheral surface of the vortex arm 520 surrounding the end of the second vortex hollow 540. Accordingly, the fluid is formed into a vortex and discharged from the second vortex hollow 540 to the first flow space S1.

[0372]

[0393] Meanwhile, the fluid that has flowed into the first vortex hollow 530 of the second vortex generating member 500b (i.e., a portion of the fluid) flows along the first vortex hollow 530. When the fluid reaches the second vortex hollow 540, a portion of the fluid continues to flow along the first vortex hollow 530 and flows into the third flow space S3. The portion of the fluid exchanges heat with elements housed in the third flow space S3, thereby cooling the elements.

[0373]

[0394] Another part of the fluid enters the second vortex hollow 540. At this time, a vortex protrusion 550 is formed on the inner peripheral surface of the vortex arm 520 surrounding the end of the second vortex hollow 540. Accordingly, the fluid forms a vortex and is discharged from the second vortex hollow 540 to the second flow space S2.

[0374]

[0395] Therefore, various elements disposed in the first to third flow spaces S1, S2, and S3 and the plurality of substrates 230 surrounding the first to third flow spaces S1, S2, and S3 can be effectively cooled.

[0375]

[0396] Next, referring to Figs. 16 to 21, a flow path for a fluid is formed inside the electric power device 10 according to the embodiment of the present invention.

[0376]

[0397] When the blower 130 is operated by the control signal applied to the terminal unit 140, a transport force is applied to the external fluid by the blower 130. The external fluid flows into the inside of the housing 100, specifically, into the second space 152 of the second housing 120, due to the applied transport force.

[0377]

[0398] The capacitor 250 is located between the blower 130 and the flow path dividing member 300. Therefore, the fluid that has flowed into the second space 152 exchanges heat with the capacitor 250 and proceeds to one side in the longitudinal direction of the second housing 120, that is, to the rear side in the illustrated embodiment.

[0378]

[0399] At this time, flow path dividing member 300 is positioned between capacitor 250 and heat dissipation member 220. Accordingly, a part of the fluid flowing in second space 152 is divided and flows into flow path dividing member 300.

[0379]

[0400] The surface that the inflowing fluid faces, i.e., the second dividing surface 312, is formed to extend and incline upward. Therefore, the fluid that has entered the dividing space 320 moves upward along the second dividing surface 312.

[0380]

[0401] The division space 320 is connected to the duct hollow 420 by the support through-hole 161. The duct hollow 420 is also connected to the first vortex flow forming member 500a by the first substrate communication hole 241, and the first vortex flow forming member 500a is connected to the second vortex flow forming member 500b by the second substrate communication hole 242. Furthermore, the second vortex flow forming member 500b is connected to the third flow space S3 by the third substrate communication hole 243.

[0381]

[0402] The fluid that has flowed into the duct hollow 420 through the partition space 320 flows through the first to third flow spaces S1, S2, and S3 through the above-mentioned process, and can exchange heat with the substrate 230 and elements coupled to the substrate 230.

[0382]

[0403] Therefore, even if a separate heat dissipation member for cooling the substrate 230 is not provided, the substrate 230 and elements coupled thereto can be effectively cooled.

[0383]

[0404] Although an embodiment of the present invention has been described, the concept of the present invention is not limited to the embodiment presented in this specification, and a person skilled in the art who understands the concept of the present invention may easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same concept, which may also be considered to fall within the scope of the concept of the present invention. [Explanation of symbols]

[0384]

[0405] 10: Power equipment 11: Flow path module

[0406] 100: Housing 110: 1st housing

[0407] 111: Rib 112: Ventilation section

[0408] 120: second housing 130: blower section

[0409] 140: Terminal portion 150: Housing space portion

[0410] 151: 1st space 152: 2nd space

[0411] 160: Support plate 161: Support through hole

[0412] 200: Current carrying section 210: Switching element

[0413] 220: heat dissipation member 230: substrate

[0414] 231: First substrate 232: Second substrate

[0415] 233: Third board 240: Board communication hole

[0416] 241: First board communication hole 242: Second board communication hole

[0417] 243: Third board through hole 250: Capacitor

[0418] 300: Flow passage dividing member 310: Divided body

[0419] 311: 1st dividing surface 312: 2nd dividing surface

[0420] 313: 3rd dividing plane 314: 4th dividing plane

[0421] 315: Combined surface 320: Divided space

[0422] 330: Combination protrusion 331: 1st combination protrusion

[0423] 332: second coupling protrusion 400: duct member

[0424] 410: Duct body 420: Duct hollow

[0425] 430: Duct angle 500: Eddy current forming member

[0426] 500a: First vortex forming member 500b: Second vortex forming member

[0427] 510: Whirlpool body 520: Whirlpool arm

[0428] 521: 1st arm 522: 2nd arm

[0429] 530: 1st vortex hollow 540: 2nd vortex hollow

[0430] 550: Eddy current protrusion 560: Eddy current rib

[0431] S1: First flow space S2: Second flow space

[0432] S3: Third flow space

Claims

1. a flow path dividing member that is connected to the space of the housing and into which the fluid flowing in the space flows; a duct member coupled to the flow path dividing member and communicating with the flow path dividing member through which the fluid flows; and a vortex generating member coupled to the duct member and communicating with the duct member through which the fluid flows; The vortex generating member is The flow path module includes a vortex protrusion formed on an inner surface of an end portion in an extension direction thereof, the vortex protrusion being configured to form a vortex in the fluid and discharge the fluid.

2. The vortex generating member is A vortex body extending in one direction, one end of which is connected to the duct member; and 2. The flow path module according to claim 1, further comprising a vortex arm extending in another direction, one end of the extending direction being connected to the vortex generating member and the other end of the extending direction being open to discharge the fluid.

3. The vortex generating member is a first vortex cavity formed through the interior of the vortex body in the one direction and communicating with the interior of the duct member; and The flow passage module according to claim 2 , further comprising a second vortex cavity formed inside the vortex arm along the other direction and communicating with the first vortex cavity and the outside, respectively.

4. The fluid is A portion of the first vortex flowing along the one direction; and The flow path module according to claim 3 , wherein the first vortex hollow passes through the second vortex hollow and branches into another part exposed to the outside.

5. The flow passage module of claim 2 , wherein a plurality of the vortex arms are formed, and the plurality of the vortex arms are coupled to the outer periphery of the vortex body at different positions from each other.

6. The vortex protrusions are The flow path module according to claim 2 , wherein the flow path module is formed to protrude radially inward from an inner surface of the other end of the swirl arm.

7. The flow path module according to claim 6 , wherein a plurality of the vortex protrusions are provided, the plurality of vortex protrusions being spaced apart from one another along an inner circumference of the inner surface of the vortex arm.

8. The vortex generating member is formed to extend in one direction, The flow path module according to claim 1 , wherein the duct member is extended and formed so as to be inclined at a predetermined angle with respect to the one direction.

9. The duct member is One end of the extension direction is connected to the vortex generating member and communicates with the vortex generating member, The flow path module according to claim 8 , wherein the other end in the extension direction is coupled to and communicated with the flow path dividing member.

10. The flow path module according to claim 1 , wherein the duct member is made of a flexible material.

11. The flow path dividing member is A divided body connected to the duct member; and The flow path module according to claim 1 , further comprising a partition space formed inside the partition body and open so that the fluid flows in. 3 .

12. The divided fuselage includes: a first dividing surface surrounding a portion of the dividing space; a second dividing surface extending at a predetermined angle to the first dividing surface and surrounding another portion of the dividing space; a third divided surface and a fourth divided surface that are continuous with the first divided surface and the second divided surface, respectively, and are arranged to face each other across the divided space, The duct member is The flow path module according to claim 11 , wherein the second dividing surface extends so as to be inclined at the predetermined angle.

13. The flow path dividing member and the duct member are The support plate is disposed in the space of the housing, and the support plates are disposed opposite each other and are coupled to one side and the other side of the support plate, The inside of the support plate is The flow path module according to claim 11 , further comprising support through-holes formed therethrough and communicating with the flow path dividing member and the duct member, respectively.

14. a housing having a housing space formed therein and communicating with the outside; An electric current-carrying portion that is accommodated in the housing space and electrically connected to the outside; and a flow path module configured to be coupled to the electric current carrying portion and to form a flow path of a fluid that cools the electric current carrying portion; The current carrying unit is The substrate includes a plurality of substrates arranged to be stacked apart from one another, The flow path module includes: a flow path dividing member that is connected to the housing space and into which the fluid flowing in the housing space flows; a duct member coupled to one of the substrates and the flow path dividing member and communicating with the flow path dividing member through which the fluid flows; and a vortex generating member coupled to any one of the plurality of substrates and another substrate positioned adjacent to the any one of the substrates, and communicating with the duct member to allow the fluid to flow; The vortex generating member is An electric power device comprising: a vortex protrusion formed on an inner surface of an end portion in an extension direction thereof, the vortex protrusion configured to cause the fluid to be discharged in a vortex state.

15. The vortex generating member is a first vortex generating member coupled to any pair of adjacent substrates among the plurality of substrates; and a second vortex generating member coupled to another pair of adjacent substrates among the plurality of substrates and connected to the first vortex generating member; The plurality of substrates include a first substrate located at the bottom, the lower side of which is coupled to the duct member and the upper side of which is coupled to the first vortex generating member; a second substrate disposed above the first substrate and spaced apart from the first substrate, the lower side of which is coupled to the first vortex forming member and the upper side of which is coupled to the second vortex forming member; and The electric power device according to claim 14 , further comprising a third substrate disposed above the second substrate and spaced apart from the second substrate, the lower side of which is coupled to the second vortex-forming member.

16. a first substrate through hole, a second substrate through hole, and a third substrate through hole are formed through the first substrate, the second substrate, and the third substrate, respectively; the duct member is in communication with the first substrate through hole, the first vortex generating member is in communication with the first substrate through hole and the second substrate through hole, The electric power device according to claim 15 , wherein the second vortex-forming member is in communication with the second substrate through-hole.

17. The fluid that flows into the first vortex generating member is A part of the fluid is discharged into a first flow space, which is a space formed between the first substrate and the second substrate, and the remaining part is caused to flow into the second vortex generating member, The fluid that has flowed into the second vortex generating member is The electric power device according to claim 15 , wherein a portion of the fluid is discharged into a second flow space, which is a space formed between the second substrate and the third substrate, and the remaining portion is discharged into a third flow space, which is a space formed above the third substrate.

18. The vortex generating member is a vortex body extending in a direction in which the substrates are stacked, the vortex body having a first vortex cavity formed therein and penetrating along the extending direction; and 18. The electric power device according to claim 17, further comprising a vortex arm extending in a direction different from the vortex body, the vortex arm having a second vortex cavity penetrating therethrough along the extension direction and communicating with the first vortex cavity and the flow space, respectively.

19. The vortex protrusions are The electric power machine of claim 18 , located adjacent an end of an inner surface of the swirl arm surrounding the second swirl cavity.

20. The housing includes: a blower coupled to one surface of the housing to provide a force for moving an external fluid into the housing space; The flow path dividing member is The electric power equipment according to claim 14, wherein the flow path dividing member is arranged on a flow path through which fluid flowing into the housing space portion by the transport force flows, and is configured so that a portion of the flowing fluid flows into the flow path dividing member.

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