Inductor module and inverter module including same

Abstract

An inverter module according to one embodiment of the present invention comprises: a housing forming an internal space in which a component is placed; a main heat sink including a heat sink plate coupled to a lower portion of the housing and main fins extending from the heat sink plate; and an inductor module coupled to a region of a lower region of a heat dissipation plate of the main heat sink where the main heat dissipation fins are not formed, and having an inductor disposed in an inner space thereof, in which the inductor module includes: a first accommodating portion forming a first inner space accommodating the first inductor; a second accommodating portion forming a second internal space accommodating the second inductor; and a heat sink extending from outer surfaces of the first and second accommodating portions, in which the first and second accommodating portions are formed to be spaced apart from each other.

Description

Technical Field

[0001] The present invention relates to an inverter module, and more particularly, to an inverter module including an inductor module having a separate heat dissipation structure. Background Art

[0002] Solar power generation is an environmentally friendly alternative to existing chemical or nuclear power generation. Solar power generation includes stand-alone and grid-connected types. Stand-alone systems connect batteries to converters, while grid-connected systems connect batteries to the grid. Typically, stand-alone systems consist of solar cells, storage batteries, power conversion devices, and other components. Grid-connected systems connect to commercial power, allowing loads and electricity to be exchanged between grid lines.

[0003] The electricity generated by solar panels is difficult to use directly in homes or buildings. Instead, it needs to be converted into usable electricity through a power conversion device such as an inverter. However, the inverter generates a large amount of heat during the power conversion process, which can degrade performance, making heat dissipation crucial. Furthermore, sealing is crucial to prevent foreign matter from entering the inverter due to its external installation environment. Numerous components are placed within the inverter, necessitating the development of technologies to efficiently arrange these components within the inverter module. Summary of the Invention

[0004] Technical issues

[0005] The technical problem to be solved by the present invention is to provide an inverter module, which includes an inductor module with an independent heat dissipation structure.

[0006] Technical Solution

[0007] In order to solve the above technical problems, an inductor module according to one embodiment of the present invention includes: a first inductor and a second inductor; a first accommodating portion, the first accommodating portion forming a first internal space for accommodating the first inductor; and a second accommodating portion, the second accommodating portion forming a second internal space for accommodating the second inductor, wherein the first accommodating portion and the second accommodating portion are formed to be spaced apart from each other.

[0008] In addition, the first accommodating portion includes: a first base; and a first side panel, the first side panel extending from the first base, wherein the second accommodating portion includes: a second base; and a second side panel, the second side panel extending from the second base, wherein the length from the first base of the first accommodating portion to the upper end of the first accommodating portion may be longer than the length from the second base of the second accommodating portion to the upper end of the second accommodating portion.

[0009] In addition, the first inductor includes a plurality of coils, wherein the first base of the first accommodating portion includes: a first coil seating portion, on which a portion of the plurality of coils are arranged; and a second coil seating portion, on which the other remaining coils of the plurality of coils are arranged, and wherein the first coil seating portion and the second coil seating portion can be formed to be spaced apart from each other.

[0010] Furthermore, the first inductor may be disposed in the first accommodation portion and molded, and the second inductor may be disposed in the second accommodation portion and molded.

[0011] Furthermore, a first substrate is included, a lower portion of the first substrate is connected to the terminal of the first inductor, a first terminal block is provided on an upper portion of the first substrate and connected to the first wiring, and the first terminal block and the terminal of the first inductor can be electrically connected.

[0012] Furthermore, the first terminal block and the terminal of the first inductor may be electrically connected through the conductive pattern of the first substrate.

[0013] In addition, the first terminal block includes: a third base; a bolt accommodating portion, which extends from the center of the third base in a downward direction and is combined with the first substrate to form an internal space for accommodating bolts; and a combining portion, which extends from the edge of the third base in a downward direction and is combined with the first substrate, wherein the first terminal block can be combined with the ring terminal of the first wiring arranged on the third base by a bolt.

[0014] Furthermore, when the first inductor is disposed in the first accommodation portion and molded, the first substrate is molded, and the third base of the first terminal block may not be molded.

[0015] In addition, the inductor module includes: a second substrate, a lower portion of which is connected to the terminal of the second inductor; and a second terminal block, which is provided on an upper portion of the second substrate and connected to the second wiring, wherein the second terminal block and the terminal of the second inductor can be electrically connected.

[0016] In addition, the inductor module includes: a wiring lead-out portion, which extends from one side of the second side plate of the second accommodating portion to form a channel through which the wiring passes; and a first wiring bracket, which is arranged on the wiring lead-out portion, wherein the first wiring bracket may include: a fifth base, which contacts the fourth base of the wiring lead-out portion; a first extension portion, which extends obliquely from the fifth base and includes a first through-hole, through which at least one first wiring electrically connected to the first inductor and at least one second wiring electrically connected to the second inductor pass; and a second extension portion, which extends from the first extension portion in parallel with the fifth base.

[0017] Furthermore, the first through-hole may include a plurality of first through-holes, each of the plurality of first through-holes including a first bushing portion including two holes spaced apart from each other.

[0018] Furthermore, the first inductor is an inverter-side inductor, and the second inductor may be a grid-side inductor.

[0019] In addition, the first inductor includes a plurality of coils and may include a second wiring support in the space between the first accommodating portion and the second accommodating portion, wherein the second wiring support may include: a sixth base, the sixth base is arranged in the space between the first accommodating portion and the second accommodating portion; a third side plate, the third side plate extending from the sixth base; and a second through-hole, through which a plurality of first wirings pass through the third side plate adjacent to the first accommodating portion in the third side plate through the second through-hole, each of the plurality of first wirings being electrically connected to each terminal of the plurality of coils.

[0020] Furthermore, a height of a third side plate adjacent to the first receiving portion among the third side plates may be higher than a height of a third side plate adjacent to the second receiving portion among the third side plates.

[0021] In addition, the second inductor may include a plurality of coils and may include a third wiring support in the space between the first accommodating portion and the second accommodating portion, wherein the third wiring support may include: a seventh base, the seventh base being arranged in the space between the first accommodating portion and the second accommodating portion; a fourth side plate, the fourth side plate extending from the seventh base; a third through-hole, the third through-hole being located in a fourth side plate adjacent to the second accommodating portion in the fourth side plate, a plurality of second wirings passing through the third through-hole, each of the plurality of second wirings being electrically connected to each terminal of the plurality of coils; and a fourth through-hole, the fourth through-hole being located in a fourth side plate adjacent to the first accommodating portion in the fourth side plate, a plurality of second wirings passing through the fourth through-hole.

[0022] Furthermore, a height of a fourth side plate adjacent to the first receiving portion among the fourth side plates may be the same as a height of a fourth side plate adjacent to the second receiving portion among the fourth side plates.

[0023] In addition, the inductor module includes: a wiring lead-out portion, which extends from one side of the side plate of the first accommodating portion to form a channel through which the wiring passes; and a fourth wiring bracket, which is arranged in the wiring lead-out portion, wherein the fourth wiring bracket may include: a ninth base, which contacts the eighth base of the wiring lead-out portion; and a fifth side plate, which extends from the ninth base and includes a fifth through-hole, through which at least one first wiring and at least one second wiring pass, the at least one first wiring being electrically connected to the first inductor, and the at least one second wiring being electrically connected to the second inductor.

[0024] In addition, the first inductor includes a plurality of coils, wherein, when the plurality of coils are arranged in the first accommodating portion and molded, a portion of the plurality of first wirings is also molded, and the plurality of first wirings are each electrically connected to each terminal of the plurality of coils, wherein at least a portion of each of the plurality of coils is exposed to the outside of the molded part, and wherein the first wirings pass between the coils exposed to the outside of the molded part and can extend toward the second accommodating portion.

[0025] In order to solve the above technical problems, an inverter module according to an embodiment of the present invention includes: a shell, the shell forming an internal space in which components are placed; a main heat sink, the main heat sink including a heat sink plate coupled to the lower portion of the shell and main heat sink fins extending from the heat sink plate; and an inductor module, the inductor module being bond-coupled to an area of the lower region of the heat sink plate of the main heat sink where the main heat sink fins are not formed, an inductor being arranged in the internal space of the inductor module, wherein the inductor module includes any one of the inductor modules.

[0026] In addition, the main heat dissipation plate includes a wiring lead-out portion from which a plurality of wirings electrically connected to the inductor module are led out, wherein the plurality of wirings led out from the wiring lead-out portion can be guided and led out to positions corresponding to positions of connectors respectively connected to the plurality of wirings.

[0027] Beneficial effects

[0028] According to the embodiments of the present invention, the heat dissipation performance of the inductor module can be improved. Furthermore, the wiring connected to the inverter module can be efficiently pulled into the inverter module housing, and the multiple lead-out wiring can be guided to positions corresponding to the positions of the connectors connected to the multiple lead-out wiring. This improves workability when the operator connects the wiring guided to the connectors. Furthermore, since the inverter module can be easily mounted on a wall, workability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of an inverter module according to an embodiment of the present invention;

[0030] Figure 2 shows the interior of an inductor module according to an embodiment of the present invention;

[0031] Figure 3 shows a heat sink of an inductor module according to an embodiment of the present invention;

[0032] Figure 4 An inverter module according to an embodiment of the present invention is shown;

[0033] Figure 5is a diagram for explaining a coupling slit of an inductor module mounted on an inverter module according to an embodiment of the present invention;

[0034] Figures 6 to 10 is a diagram for explaining a configuration in which an inverter module including an inductor module according to an embodiment of the present invention is coupled to an external bracket;

[0035] Figures 11 to 15 An inductor module according to another embodiment of the present invention is shown;

[0036] Figure 16 and Figure 17 is a diagram for explaining a terminal block of an inductor module according to an embodiment of the present invention;

[0037] Figures 18 to 20 is a diagram for explaining a wiring bracket of an inductor module according to an embodiment of the present invention;

[0038] Figures 21 to 23 An inductor module according to another embodiment of the present invention is shown;

[0039] Figures 24 to 26 An inductor module according to another embodiment of the present invention is shown;

[0040] Figures 27 to 29 An inductor module according to yet another embodiment of the present invention is shown;

[0041] Figures 30 to 32 An inductor module according to yet another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0042] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0043] However, the technical concept of the present invention is not limited to some embodiments to be described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more constituent elements can be selectively combined or replaced between the embodiments.

[0044] In addition, unless explicitly defined and described, the terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that can be generally understood by those skilled in the art, and commonly used terms, such as terms defined in dictionaries, may be interpreted in consideration of the meaning of the context of the relevant technology.

[0045] In addition, the terms used in this specification are used to describe the embodiments and are not intended to limit the present invention. In this specification, a singular form may include a plural form unless otherwise specified in a phrase, and when described as "at least one (or more than one) of A and B and C", it may include one or more of all combinations that can be combined with A, B and C.

[0046] Furthermore, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

[0047] These terms are only intended to distinguish a component from other components, and these terms do not limit the nature, sequence, or order of the components.

[0048] Furthermore, when a component is described as being “connected,” “coupled,” or “interconnected” to another component, the component is not only directly connected, coupled, or interconnected to the other component but may also include a case where the component is “connected,” “coupled,” or “interconnected” due to another component between the other components.

[0049] In addition, when described as being formed or disposed “on (above)” or “below (below)” each component, “on (above)” or “below (below)” means not only including a case where the two components are in direct contact but also including a case where one or more other components are formed or disposed between the two components. Furthermore, when expressed as “on (above)” or “below (below)”, it can include not only an upward direction relative to a component but also a downward direction relative to a component.

[0050] Figure 1 is a perspective view of an inverter module according to an embodiment of the present invention.

[0051] Figure 2 shows the interior of an inductor module according to an embodiment of the present invention; Figure 3 shows a heat sink of an inductor module according to an embodiment of the present invention; Figure 4 An inverter module according to an embodiment of the present invention is shown; Figure 5 is a diagram for explaining a coupling slit of an inductor module mounted on an inverter module according to an embodiment of the present invention; Figures 6 to 10 is a diagram for explaining a configuration in which an inverter module including an inductor module according to an embodiment of the present invention is coupled to an external bracket; Figures 11 to 15 An inductor module according to another embodiment of the present invention is shown; Figure 16 and Figure 17 is a diagram for explaining a terminal block of an inductor module according to an embodiment of the present invention; Figures 18 to 20 is a diagram for explaining a wiring bracket of an inductor module according to an embodiment of the present invention; Figures 21 to 23An inductor module according to another embodiment of the present invention is shown; Figures 24 to 26 An inductor module according to another embodiment of the present invention is shown; Figures 27 to 29 An inductor module according to yet another embodiment of the present invention is shown; Figures 30 to 32 An inductor module according to yet another embodiment of the present invention is shown.

[0052] The inductor module according to an embodiment of the present invention houses an inductor therein. The inverter module according to an embodiment of the present invention has an inductor module according to an embodiment of the present invention mounted thereon, and the inverter module may be a PV inverter module. The PV inverter module is a device that receives power from a PV panel or a PV converter and converts it into power that can be used in a home or building, and receives DC power from a PV converter, etc., converts it into AC power, and outputs it. At this time, the DC power is transmitted to the inverter drive unit through a wiring connection unit, the inverter drive unit converts the power, and then transmits the converted power again to the load through the wiring connection unit. The inverter drive unit may include a power conversion element and a switching element or MCU for controlling the power conversion element. The power conversion element may include a passive element such as an inductor or a capacitor, and may include a switching element implemented as a FET or a diode, and may include an MCU for controlling the switching element. In addition, various elements for converting power may be included, or elements for implementing functions other than power conversion may be included.

[0053] The inductor module according to the embodiment of the present invention may constitute a separate module accommodating the inductor of the inverter module, thereby achieving efficient heat dissipation of the inductor that generates a large amount of heat.

[0054] To this end, the inductor module according to the embodiment of the present invention accommodates an inductor therein, and includes a first accommodation portion 110 , a second accommodation portion 120 , and a heat sink 130 .

[0055] An inductor module according to an embodiment of the present invention houses a first inductor 150 and a second inductor 160. Here, the first inductor 150 may be an inverter-side inductor, and the second inductor 160 may be a grid-side inductor. The inverter-side inductor and the grid-side inductor may have different required specifications, thus varying the overall size of the inverter and the number of included coils. To accommodate the first inductor 150 and the second inductor 160 in different spaces, the inductor module includes a first accommodating portion 110 for accommodating the first inductor 150 and a second accommodating portion 120 for accommodating the second inductor 160.

[0056] The first receiving portion 110 forms a first inner space for receiving the first inductor 150. The first receiving portion 110 may include a first base 111 and a first side plate 112 extending from the first base 111. The first receiving portion 110 may be configured with the first base 111 constituting a lower plate of the first receiving portion 110 and the first side plate 112 constituting a side plate of the first receiving portion 110, thereby accommodating the first inductor 150.

[0057] The second receiving portion 120 forms a second inner space for receiving the second inductor 160. The second receiving portion 120 may include a second base 121 and a second side plate 122 extending from the second base 121. The second receiving portion 120 may be configured with the second base 121 constituting a lower plate of the second receiving portion 120 and the second side plate 122 constituting a side plate of the second receiving portion 120, thereby accommodating the second inductor 160.

[0058] The first side plate 112 and the second side plate 122 are spaced apart from each other in the direction in which the first accommodating portion 110 and the second accommodating portion 120 face each other, but may be connected to each other via the third base. A space between the first accommodating portion 110 and the second accommodating portion 120 may be formed by the third base and the first side plate 112 and the second side plate 122 in the direction in which the first accommodating portion 110 and the second accommodating portion 120 face each other.

[0059] The first receiving portion 110 and the second receiving portion 120 may be formed to be spaced apart from each other. The first inductor 150 disposed in the first receiving portion 110 and the second inductor 160 disposed in the second receiving portion 120 are different from each other as the inverter-side inductor and the grid-side inductor, and since the magnetic fields generated by the coils may affect each other, they may be disposed in different receiving portions, and the first receiving portion 110 and the second receiving portion 120 may be spaced apart from each other so that they do not affect each other.

[0060] The sizes of the inner spaces formed by the first and second receiving parts 110 and 120 may be different. The inner space of the first receiving part 110 may correspond to the size of the first inductor 150 , and the inner space of the second receiving part 120 may correspond to the size of the second inductor 160 .

[0061] The first inductor 150 may have a larger size than the second inductor 160. The number of coils included in the first inductor 150 may be greater than the number of coils included in the second inductor 160, and the size of the coils included in the first inductor 150 may be larger than the size of the coils included in the second inductor 160.

[0062] According to the size difference between the first inductor 150 and the second inductor 160 , the size of the inner space of the first receiving portion 110 may be larger than the size of the inner space of the second receiving portion 120 .

[0063] The length from the first base 111 of the first receiving section 110 to the upper end of the first receiving section may be longer than the length from the second base 121 of the second receiving section 120 to the upper end of the second receiving section. In other words, the height of the interior space of the first receiving section 110 may be greater than the height of the interior space of the second receiving section 120. The area of the first receiving section 110 may be greater than the area of the second receiving section 120, and the internal volume of the first receiving section 110 may be greater than the internal volume of the second receiving section 120. The area of the first base 111 of the first receiving section 110 may be greater than the area of the second base 121 of the second receiving section 120. The length of the first base 111 in the first direction separating the first and second receiving sections 110 and 120 may be longer than the length of the second base 121. In a direction perpendicular to the first direction separating the first and second receiving sections 110 and 120, the length of the first base 111 and the length of the second base 121 may be equal.

[0064] The first inductor 150 can be positioned and molded in the first receiving portion 110, and the second inductor 160 can be positioned and molded in the second receiving portion 120. After the first inductor 150 is positioned within the interior space of the first receiving portion 110, the first receiving portion 110 can be filled with an injection molding liquid to mold the first inductor 150. Through molding, heat generated in the first inductor 150 can be quickly and efficiently transferred to the first base 111 and first side plate 112 of the first receiving portion 110. Furthermore, the first inductor 150 can be positioned within the first receiving portion 110 through molding.

[0065] After the second inductor 160 is disposed within the interior space of the second receiving portion 120, a molding liquid may be filled into the second receiving portion 120 to mold the second inductor 160. Through molding, heat generated in the second inductor 160 can be quickly and efficiently transferred to the second base 121 and second side plate 122 of the second receiving portion 120. Furthermore, the second inductor 160 can be disposed within the second receiving portion 120 through molding.

[0066] The heat sink 130 extends from the outer surfaces of the first and second receiving portions 110 and 120. The inductor module 100 according to the embodiment of the present invention is configured to receive a separate module of the inverter of the inverter module for efficient heat dissipation, and the heat sink 130 is formed on the outer surfaces of the first and second receiving portions 110 and 120.

[0067] The heat sink 130 may include a plurality of first heat sinks 131, which are formed along the outer surface of the first side plate 112 of the first accommodating portion 110, the outer surface of the first base 111 of the first accommodating portion 110, the space between the first accommodating portion 110 and the second accommodating portion 120, the outer surface of the second base 121 of the second accommodating portion 120, and the outer surface of the second side plate 122 of the second accommodating portion 120 along a first direction (i.e., the length direction of the inductor module), and are spaced apart from each other in a second direction perpendicular to the first direction.

[0068] The first heat sink 131 can be formed to extend along the entire outer surface of the inductor module 100 along the length of the inductor module. The first heat sink 131 can be formed along the outer surface of the first side plate 112 of the first accommodating portion 110, the outer surface of the first base 111 of the first accommodating portion 110, the outer surface of the separation space between the first accommodating portion 110 and the second accommodating portion 120, the outer surface of the second base 121 of the second accommodating portion 120, and the outer surface of the second side plate 122 of the second accommodating portion 120. The heat sink area in the separation space between the first accommodating portion 110 and the second accommodating portion 120 is formed to be large, so that even if heat is transferred from both the first inductor 150 and the second inductor 160, heat can be effectively dissipated to the outside.

[0069] The heat sink 130 may include second heat sinks 132 and 133 extending in a different direction than the first heat sink 131. The heat sink 130 may include a plurality of second heat sinks 132 and 133. The plurality of second heat sinks 132 and 133 are formed along a first direction along the outer surface of the first side plate 112 of the first accommodating portion 110, where the first heat sink 131 is not formed, the separation space between the first accommodating portion 110 and the second accommodating portion 120, and the outer surface of the second side plate 122 of the second accommodating portion 120, where the first heat sink 131 is not formed. The plurality of second heat sinks 132 and 133 are spaced apart from one another in a third direction perpendicular to the first and second directions. The first side plate 112 of the first accommodating portion 110, where the first heat sink 131 is not formed, is formed by two side plates. The second heat sinks 132 and 133 may be formed by extending in opposite directions from the two facing side plates.

[0070] Heat generated in the first inductor 150 and the second inductor 160 can be dissipated to the outside through the first heat sink 131 and the second heat sinks 132 and 133. The first heat sink 131 and the second heat sinks 132 and 133 are each formed to extend in a first direction, which corresponds to the up-down direction when mounted on the inverter module. Heat can be effectively dissipated by moving in the up-down direction.

[0071] The inductor module according to the embodiment of the present invention may be formed as follows Figure 4As shown in various shapes ( 101 , 102 , and 103 ), the first receiving portion 110 and the second receiving portion 120 may be formed separately and spaced apart ( 141 , 142 , and 143 ) to effectively achieve heat dissipation.

[0072] The inverter module 200 according to the embodiment of the present invention includes a housing 210 in which components are placed, a cover 230 covering the housing 210, a main heat sink 220, and an inductor module 100. The detailed description of the inductor module 100 included in the inverter module 200 corresponds to Figures 1 to 4 The detailed description of the inductor module is omitted, therefore any repeated description will be briefly described below.

[0073] The housing 210 forms an inner space in which components of the inverter module are disposed.

[0074] The inverter module 200 according to an embodiment of the present invention is implemented as a module through an inverter module housing. The inverter module housing is configured so that the inverter drive unit and the wiring connection unit are respectively provided with a housing, and each housing can be connected to each other to form an inverter module housing. The inverter module housing can be configured with a first housing and a second housing. The cover 230 can also include a first cover covering the first housing and a second cover covering the second housing. Alternatively, the cover 230 can be configured with a cover covering both the first housing and the second housing. The inverter drive unit is arranged in the first housing, and the wiring connection unit is arranged in the second housing. Here, the second housing in which the wiring connection unit is arranged can be referred to as a wiring connection module, and can also be referred to as a wiring box or a junction box.

[0075] Here, the inverter drive unit can be a drive unit for a 7.6kW inverter or an 11.4kW inverter module. At this time, even if the types of inverters are different, by forming the horizontal length of the surface to be combined with the wiring connection unit to be the same, even if the types of inverters are different, a single wiring connection module can be used to perform wiring connection. That is, the wiring connection module is applied in a detachable modular form with a common fastening structure, which enables the common structure used for each product to reduce the initial mold investment cost and unify the various arrangements (lineup) according to the inverter type to form a homogeneous appearance.

[0076] Main heat sink 220 may include a heat sink plate coupled to the lower portion of housing 210 and main fins extending from the heat sink plate. The main fins are attached to the plate-shaped heat sink plate at the lower portion of housing 210. Specifically, they may be attached to the plate-shaped heat sink plate at the lower portion of housing 210 where components are placed. The main fins extend outward from a portion of the heat sink plate area, allowing heat generated by the components to be discharged to the outside through the heat sink plate and the main fins. Main heat sink 220 may be constructed of a material with high thermal conductivity.

[0077] The inductor module 100 is bonded to the lower portion of the heat sink of the main heat sink 220, in an area not provided with the main heat sink fins. The inductor is housed within the internal space. The inductor of the inverter module 200 is housed within the inductor module 100, rather than within the housing 210, allowing for efficient heat dissipation. The inductor module 100 contacts the heat sink of the main heat sink 220 and includes separate heat sink fins 130, allowing heat to be transferred not only toward the heat sink fins 130 but also toward the heat sink, achieving efficient heat dissipation. Heat transferred from the inductor module 100 to the heat sink can be discharged to the outside via the main heat sink fins.

[0078] The inductor module 100 includes: a first accommodating portion 110 forming a first internal space for accommodating a first inductor 150; a second accommodating portion 120 forming a second internal space for accommodating a second inductor 160; and a heat sink 130 extending from outer surfaces of the first accommodating portion 110 and the second accommodating portion 120, wherein the first accommodating portion 110 and the second accommodating portion 120 are formed to be spaced apart from each other.

[0079] The first receiving portion 110 may include a first base 111 and a first side plate 112 extending from the first base 111, and the second receiving portion 120 may include a second base 121 and a second side plate 122 extending from the second base 121. A length from the first base 111 of the first receiving portion 110 to an upper end of the first receiving portion 110 may be longer than a length from the second base 121 of the second receiving portion 120 to an upper end of the second receiving portion 120.

[0080] The heat sink 130 may be formed along a first direction (i.e., a length direction of the inductor module 100) along the outer surface of the first side plate 112 of the first accommodating portion 110, the outer surface of the first base 111 of the first accommodating portion 110, the separation space between the first accommodating portion 110 and the second accommodating portion 120, the outer surface of the second base 121 of the second accommodating portion 120, and the outer surface of the second side plate 122 of the second accommodating portion 120, and the heat sink 130 may include a plurality of first heat sinks 131 spaced apart from each other in a second direction perpendicular to the first direction.

[0081] Furthermore, the heat sink 130 may be formed along the first direction along the outer surface of the first side plate 112 of the first accommodating portion 110 not formed with the first heat sink 131, the separation space between the first accommodating portion 110 and the second accommodating portion 120, and the outer surface of the second side plate 122 of the second accommodating portion 120 not formed with the first heat sink 131. The heat sink 130 may include a plurality of second heat sinks 132 and 133 spaced apart from one another in a third direction perpendicular to the first and second directions. The first side plate 112 of the first accommodating portion 110 not formed with the first heat sink 131 may be two side plates, and the second heat sinks 132 and 133 may be formed extending in opposite directions from the two side plates facing each other.

[0082] The main fins of the main heat sink 220 may include a plurality of main fins extending from a heat dissipation plate in a first direction and spaced apart from each other in a second direction perpendicular to the first direction.

[0083] Among the multiple first heat sinks, a first bonding slit 136 for bonding to the external bracket 300 can be formed on the outermost first heat sink fin, which is farthest from the main heat sink. To improve workability when mounting the inverter module 200 on the external bracket 300, forming the first bonding slit on the outermost first heat sink fin 131 can improve workability. In this case, the first bonding slit 136 can be formed at a position corresponding to the separation space 140 between the first and second accommodating portions 110 and 120. Because the interior of the inductor module 100 is recessed inward in the separation space 140 between the first and second accommodating portions 110 and 120, space for forming the first bonding slit is ensured. Forming the first bonding slit 136 at the corresponding position allows for greater space utilization. Because the weight of the inverter module 200 is applied to the outermost first heat sink fin 131, the outermost first heat sink fin 131 can be thicker than the other heat sinks.

[0084] Furthermore, among the plurality of second heat sinks 132 and 133, the second heat sink 135 adjacent to the outermost first heat sink 134 may not have a heat sink formed in the separation space between the first receiving portion 110 and the second receiving portion 120. When combined with the external bracket 300, the extension of the external bracket's seating guide may be located at the position of the second heat sink 135. In this case, a portion of the second heat sink 135 may be removed. This enables stable combination with the external bracket 300.

[0085] The first coupling slit 136 can be formed so as to be inclined downward from the first direction when the inverter module 200 is mounted on the external bracket 300, and can be formed into a tapered shape with the width of the slit gradually widening. The first coupling slit 136 can be formed so as to be inclined downward, so that when coupled with the external bracket 300, the first coupling slit 136 can receive the downward force caused by gravity. This facilitates installation by increasing the force in the coupling direction during operation and can prevent the inverter module 200 from becoming detached after installation.

[0086] At this time, the angle A inclined relative to the first direction of the first coupling slit 136 may be between 50 and 80 degrees, for example, 65 degrees. Alternatively, the angle A may be 45 degrees perpendicular to the first direction.

[0087] Furthermore, the first coupling slit 136 can be tapered in the direction of installation with the external bracket 300 to guide the external bracket 300. When mounted on an outer wall, the first coupling slit 136 can be slidably coupled to the external bracket 300, allowing for easy insertion even on a side of the wall that is difficult for an operator to see. The second base 121-side end 137 of the first coupling slit 136 can be curved to widen the contact surface with the end of the external bracket 300. This allows the weight of the inverter module 200 to be fully transferred to the external bracket 300 during coupling. If the end of the first coupling slit 136 were sharply formed, the contact area with the end of the external bracket 300 would be narrowed, and thus the entire weight of the inverter module 200 might not be transferred to the external bracket 300 during coupling.

[0088] A coupling hole 138 for coupling with the external bracket 300 may be formed at one side of the first heat sink 131 adjacent to the first coupling slit 136. After the inverter module 200 is mounted on the external bracket 300, the inverter module 200 may be screw-coupled through the coupling hole 138 to be fixed to the external bracket 300.

[0089] Among the main heat sinks, a second coupling slit having a shape corresponding to the first coupling slit 136 may be formed in an outermost main heat sink fin that is farthest from the first heat sink 131 .

[0090] The second coupling slit can be formed to be inclined downward from the first direction when the inverter module 200 is mounted on the external bracket 300, and can be formed into a tapered shape with the width of the slit gradually widening. The second coupling slit can be formed to be inclined downward so that it can absorb the downward force caused by gravity when coupled to the external bracket 300. This facilitates installation by increasing the force in the coupling direction during operation and can prevent the inverter module 200 from detaching after installation.

[0091] Furthermore, the second coupling slit may be formed into a tapered shape in the direction of installation with the external bracket 300, thereby guiding the external bracket 300 and allowing the second coupling slit to be easily inserted into the external bracket 300 even on a wall side that is difficult for an operator to see when installed on an outer wall. The end of the second coupling slit may be formed into a curved shape so that the contact surface with the end of the external bracket 300 becomes wider. This enables the weight of the inverter module 200 to be fully transferred to the external bracket 300 during coupling. If the end of the second coupling slit is formed sharply, the contact area with the end of the external bracket 300 becomes narrower, and thus the entire weight of the inverter module 200 may not be transferred to the external bracket 300 during coupling.

[0092] A coupling hole for coupling with the external bracket 300 may be formed at one side of the main heat sink adjacent to the second coupling slit. After the inverter module 200 is mounted on the external bracket 300, the inverter module 200 may be screw-coupled to the external bracket 300 through the coupling hole.

[0093] The outer bracket 300 may be inserted into both the first coupling slit 136 and the second coupling slit, coupled, and fixed.

[0094] The main heat sink 220 and inductor module 100 may be formed on one side of the lower portion of the housing 210 and may include a coupling portion 240 extending to the lower portion of the housing 210 on the side opposite the side where the main heat sink 220 and inductor module 100 are formed. The main heat sink 220 and inductor module 100 may be formed to protrude from the lower portion of the housing 210. Because the main heat sink 220 and inductor module 100 are positioned off-center on one side of the first housing in the direction of the inverter drive unit, when attached to the external bracket 300, the area where the main heat sink 220 and inductor module 100 are not formed may be unstable due to being spaced apart from the outer wall and unsupported. In this position, the coupling portion 240 extends to the lower portion of the housing 210 and can couple with the outer wall when mounted on the external bracket 300, thereby stably securing the inverter module 200. The extended length of the coupling portion 240 can correspond to the distance between the lower portion of the housing 210 and the wall surface when the inverter module 200 and the external bracket 300 are connected. This extended length allows the inverter module 200 to be fixed parallel to the wall surface, achieving stable operation. The coupling portion 240 can be threadedly coupled to the housing 210 and also to the outer wall.

[0095] A space separated from the wall surface can be formed between the main heat sink 220 and the inductor module 100 and the joint 240. The joint 240 can be provided in the region of the lower portion of the housing that is furthest from the main heat sink 220 and the inductor module 100. The region where the main heat sink 220, the inductor module 100, and the joint 240 are not formed can be spaced apart from the outer wall, forming an empty space. Heat discharged from the heat sink 130 of the main heat sink 220 and the inductor module 100 can be discharged from the outer wall into the separated space, and airflow can be generated in the separated space, thereby achieving efficient heat dissipation.

[0096] The external bracket 300 may include a base 310, a first extension 320 extending obliquely from the base 310, a second extension 330, and a wing 340, and the external bracket 300 may include a coupling portion 350. The inclination angle A of the first extension 320 may be between 50 and 80 degrees, for example, 65 degrees, to correspond to the angle at which the first coupling slit 136 is inclined relative to the first direction. Alternatively, the inclination angle A of the first extension 320 may be 45 degrees. The inclination angle of the wing 340 may be between 50 and 80 degrees.

[0097] like Figure 8 As shown, the external bracket 300 can be coupled to the first coupling slit 136. The external bracket 300 may include a base 310, a first extension 321 extending obliquely from one end of the base 310 to correspond to the shape of the first coupling slit 136 and inserted into the first coupling slit 136, and a second extension 330 extending from one end of the base 310 in a shape that covers the outer surface of the outermost heat sink 134. Here, the first extension 321 and the second extension 330 may be in perpendicular contact. One side of the first extension 321 may be in perpendicular contact with one side of the second extension 330. The second extension 330 may include a wing 341 extending obliquely relative to the extension direction of the second extension 330. When the external bracket 300 is coupled to the inverter module 200, the second extension contacts the outer surface of the outermost first heat sink 131, and the wing 341 may extend obliquely in a direction away from the outer surface of the outermost first heat sink 131. When the external bracket 300 and the inverter module 200 are combined, the wing portion 341 may guide the outer surface of the outermost first heat dissipating fin 134 toward the first extension portion.

[0098] The coupling portion 350 may be formed in the second extending portion 330 and threadably coupled to the coupling hole 138 of the first heat sink 131 .

[0099] The external bracket 300 may include a first extension 322 and a second extension 330. The first extension 322 extends from the other end of the base 310 at an angle corresponding to the shape of the second joining slit and is inserted into the second joining slit. The second extension 330 extends from one end of the base 310 in a shape that covers the outer surface of the outermost main heat sink. Here, the first extension 322 and the second extension 330 may vertically contact each other. One surface of the first extension 322 may perpendicularly contact a side surface of the second extension 330. The second extension 330 may include a wing 342 that extends obliquely relative to the extension direction of the second extension. When the external bracket 300 is coupled to the inverter module 200, the second extension contacts the outer surface of the outermost main heat sink, and the wing 342 extends obliquely away from the outer surface of the outermost main heat sink. When the external bracket 300 is coupled to the inverter module 200, the wing 342 guides the outer surface of the outermost main heat sink toward the first extension.

[0100] The coupling portion 350 may be formed in the second extending portion 330 and thread-coupled with the coupling hole of the main heat sink.

[0101] According to an embodiment of the present invention, the inverter module 200 may be mounted on an external bracket 300, such as Figure 10 First, the external bracket 300 is mounted on the wall surface 400. Thereafter, the first extension portion 320 of the external bracket is positioned in the first and second coupling slits of the inverter module 200. After the coupling portion 240 of the inverter module 200 is in close contact with the wall surface, bolts can be tightened by threaded coupling to couple and secure the coupling portion 350 of the external bracket 300 to two locations on the wall surface.

[0102] Thus, the inverter module 200 can be mounted using only one mounting bracket, ie, an external bracket.

[0103] An inductor module according to an embodiment of the present invention includes a first inductor and a second inductor, a first accommodating portion forming a first internal space for accommodating the first inductor, and a second accommodating portion forming a second internal space for accommodating the second inductor, wherein the first accommodating portion and the second accommodating portion may be formed spaced apart from each other. The inductor module according to an embodiment of the present invention may also include a wiring lead-out portion from which wiring connected to the first and second inductors is led out, and a wiring bracket for guiding the wiring to the outside.

[0104] The wiring lead-out portion extends from one side of the second side plate of the second accommodating portion to form a channel for the wiring to pass through, and a wiring bracket can be set in the wiring lead-out portion to guide the wiring. The wiring bracket may include a base, a first extension portion and a second extension portion, the first extension portion extending obliquely from the base and including a through-hole through which one or more first wirings electrically connected to the first inductor and one or more second wiring channels electrically connected to the second inductor pass, and the second extension portion extends from the first extension portion parallel to the base. The through-hole of the wiring bracket may include a plurality of through-holes, and each of the plurality of through-holes may include a bushing portion having two holes spaced apart from each other. The wiring passing through the hole of the bushing portion can be inserted into the hole of the bushing portion, separated from other wirings, and fixed in a position for being pulled out to the wiring lead-out portion.

[0105] The first wiring and the second wiring may be introduced into the lower portion of the second extension portion, pass through the through-hole of the first extension portion with a gap maintained therebetween, and be pulled out to the wiring lead-out portion.

[0106] The inductor module includes a first inductor and a second inductor, a first accommodating portion forming a first internal space for accommodating the first inductor, and a second accommodating portion forming a second internal space for accommodating the second inductor, wherein the inductor module in which the first accommodating portion and the second accommodating portion are formed spaced apart from each other can be configured in various embodiments.

[0107] The inductor module according to the embodiment of the present invention can be as follows Figure 11 As shown. Figure 11 A detailed description of each configuration of the inductor module of the embodiment corresponds to Figures 1 to 10 A detailed description of the inductor module 100 is provided below, and any repeated descriptions will be briefly described below.

[0108] The inductor module according to an embodiment of the present invention includes a first inductor 1150 and a second inductor 1160, a first accommodating portion 1110 forming a first internal space for accommodating the first inductor 1150, and a second accommodating portion 1120 forming a second internal space for accommodating the second inductor 1160. The first accommodating portion 1110 and the second accommodating portion 1120 may be spaced apart from each other. The first inductor 1150 may be an inverter-side inductor, and the second inductor 1160 may be a grid-side inductor.

[0109] The first receiving portion 1110 includes a first base 1111 and a first side plate 1112 extending therefrom, and the second receiving portion 1120 includes a second base 1121 and a second side plate 1122 extending therefrom. A separation space 1140 may be formed between the first and second receiving portions 1110 and 1120.

[0110] A length from the first base 1111 of the first receiving portion 1110 to the upper end of the first receiving portion 1110 may be longer than a length from the second base 1121 of the second receiving portion 1120 to the upper end of the second receiving portion 1120 .

[0111] The first inductor 1150 includes a plurality of coils 1151 and 1152, wherein the first base 1111 of the first accommodating portion 1110 includes a first coil placement portion 1113 in which a portion of the plurality of coils is disposed and a second coil placement portion 1114 in which the remaining plurality of coils are disposed, and wherein the first coil placement portion 1113 and the second coil placement portion 1114 can be formed to be spaced apart from each other. When a plurality of coils are disposed on a base, the positions of the coils are not fixed and may be unstable. The first base 1111 includes a first coil placement portion 1113 and a second coil placement portion 1114 so that the coils are placed and fixed in a set position.

[0112] The first inductor 1150 is positioned and molded in the first accommodation portion 1110 , and the second inductor 1160 may be positioned and molded in the second accommodation portion 1120 .

[0113] The inductor module includes a first substrate 1171 connected to the lower portion of the first inductor and the terminal 1153, and a first terminal block 1181 disposed on the upper portion of the first substrate 1171 and connected to the first wiring 1183. The first inductor 1150 may include a terminal block exposed to the outside during molding to facilitate wiring connection. The first substrate 1171 may be disposed at a position corresponding to the position of the terminal 1153 of the first inductor.

[0114] The first terminal block 1181 and the terminal 1150 of the first inductor may be electrically connected. The first terminal block 1181 and the terminal 1153 of the first inductor may be electrically connected through a conductive pattern of the first substrate 1171 .

[0115] First terminal block 1181 may include a third base 1186; a bolt accommodating portion 1186 extending downward from the center of third base 1186 and coupled to first base plate 1171 to form an interior space for accommodating bolts; and a coupling portion 1187 extending downward from an edge of third base 1186 and coupled to first base plate 1171. First terminal block 1181 is coupled to first base plate 1171 via coupling portion 1187 extending from third base 1186. Bolt accommodating portion 1186 forms an interior space for accommodating bolts to prevent the holes for bolt insertion from being filled with molding fluid when wiring is connected to first terminal block 1181 after molding. Furthermore, bolt accommodating portion 1186 prevents bolts 1189, which are coupled to the wiring for connection, from electrically connecting to or interfering with the coils of first inductor 1150. The first terminal block 1181 may be coupled to a ring terminal 1188 of the first wiring 1183 provided on the third base 1186 by a bolt 1189. The ring terminal 1188 connected to the end of the first wiring 1183 may be fitted with a bolt 1189 and coupled together to the first terminal block 1181 to electrically connect the terminal of the coil of the first inductor 1150 with the first wiring 1183.

[0116] When the first inductor 1150 is disposed on the first receiving portion 1110 and molded, the first substrate 1171 is molded, and the third base 1186 of the first terminal block 1181 may not be molded. The first substrate 1171 may be molded to achieve heat dissipation, and the first terminal block may be exposed through the upper portion of the molding to be combined with the first wiring 1183.

[0117] The inductor module includes a second substrate 1172, wherein the terminals of the second inductor are connected to the lower portion of the second substrate 1172; and a second terminal block 1182, which is connected to a second wiring 1184. The second terminal block 1182 and the terminal 1161 of the second inductor can be electrically connected. The second terminal block 1182 can be formed in the same shape as the first terminal block 1181.

[0118] Second terminal block 1182 may include a third base 1186; a bolt accommodating portion 1186 extending downward from the center of third base 1186 and coupled to second base plate 1172 to form an interior space for accommodating a bolt; and a coupling portion 1187 extending downward from an edge of third base 1186 and coupled to second base plate 1172. Second terminal block 1182 may be coupled to second base plate 1172 via coupling portion 1187 extending from third base 1186. Bolt accommodating portion 1186 may also form an interior space for accommodating a bolt to prevent the holes for inserting the bolt from being filled with molding fluid when wiring is connected to second terminal block 1182 after molding. Furthermore, bolt accommodating portion 1186 may prevent bolts 1189, which are coupled for wiring connections, from electrically connecting to or interfering with the coils of second inductor 1160. The second terminal block 1182 may be coupled via a ring terminal 1188 and a bolt 1189 of the second wiring 1184 provided on the third base 1186. The ring terminal 1188 connected to the end of the second wiring 1184 may be equipped with a bolt 1189 and coupled together to the second terminal block 1182 to electrically connect the terminal of the coil of the second inductor 1160 to the second wiring 1184.

[0119] When the second inductor 1160 is disposed in the second receiving portion 1120 and molded, the second substrate 1172 may be molded, and the third base 1186 of the second terminal block 1182 may not be molded. The second substrate 1172 may be molded to achieve heat dissipation, and the second terminal block may be exposed through the upper portion of the molding to be combined with the second wiring 1184.

[0120] When one or more first wirings 1183 electrically connected to the first inductor 1150 and one or more second wirings 1184 electrically connected to the second inductor 1160 are pulled outside the inductor module, a wiring bracket may be used. Using a wiring bracket maintains the gaps between the wirings, stabilizes their positions, and improves workability.

[0121] The inductor module may include a wiring lead-out portion 1125 extending from one side of the second side plate 1122 of the second accommodating portion 1120 to form a channel for wiring to pass through, and may include a first wiring support 1190 disposed in the wiring lead-out portion 1125. The first wiring support 1190 may include a fifth base 1191, a first extension 1192, and a second extension 153. The fifth base 1191 contacts the fourth base 1124 of the wiring lead-out portion 1125. The first extension 1192 extends obliquely from the fifth base 1191 and includes a first through-hole 1194. One or more first wirings 153 electrically connected to the first inductor 150 and one or more second wirings 154 electrically connected to the second inductor 160 pass through the first through-hole 1194. The second extension 153 extends from the first extension 153 parallel to the fifth base 1191. A coupling hole 1196 may be formed in the fifth base 1191 so as to be coupled with the fourth base 1124. The fifth base 1191 may be connected and fixed to the fourth base 1124 through the coupling hole 1196.

[0122] In order to guide the pulling out of the wiring, a first through hole may be formed, wherein the first through hole 1194 includes a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion 1195 including two holes spaced apart from each other.

[0123] The wiring is introduced into the lower portion of the second extension portion 1193 , passes through the hole of the first bushing portion 1195 included in the first through hole 1194 , is introduced into the wiring lead-out portion 1125 , and can be pulled out to the outside of the inductor module through the open space exposed upward.

[0124] When the inductor module is mounted on the inverter module, the inductor module is joined to the heat sink 1221 of the main heat sink of the inverter module, and a wiring lead-out portion 1222 is formed in the heat sink 1221, through which the wiring of the inductor module is led out, so that the wiring can be pulled into the housing of the inverter module through the wiring lead-out portion 1125 of the heat sink 1221.

[0125] The inductor module according to the embodiment of the present invention can be as follows Figure 21 As shown. Figure 21 A detailed description of each configuration of the inductor module of the embodiment corresponds to Figures 1 to 10 A detailed description of the inductor module 100 is provided below, and any repeated descriptions will be briefly described below.

[0126] The inductor module according to an embodiment of the present invention includes a first inductor 2150 and a second inductor 2160, a first accommodating portion 2110 forming a first internal space for accommodating the first inductor 2150, and a second accommodating portion 2120 forming a second internal space for accommodating the second inductor 2160. The first accommodating portion 2110 and the second accommodating portion 2120 may be formed to be spaced apart from each other. The first inductor 2150 may be an inverter-side inductor, and the second inductor 2160 may be a grid-side inductor.

[0127] The first receiving portion 2110 may include a first base 2111 and a first side plate 2112 extending from the first base 2111, and the second receiving portion 2120 may include a second base 2121 and a second side plate 2122 extending from the second base 2121. A separation space 2140 may be formed between the first receiving portion 2110 and the second receiving portion 2120.

[0128] A length from the first base 2111 of the first receiving portion 2110 to the upper end of the first receiving portion 2110 may be longer than a length from the second base 2121 of the second receiving portion 2120 to the upper end of the second receiving portion 2120 .

[0129] The first inductor 2150 may include a plurality of coils 2151 and 2152 and may include a coil fixing portion surrounding the coils. The position may be fixed by the coil fixing portion. The first inductor 2150 may be disposed in the first receiving portion 2110 and molded, and the second inductor 2160 may include a plurality of coils 2161 and 2162 and may be disposed in the second receiving portion 2120 and molded.

[0130] When one or more first wirings electrically connected to the first inductor 2150 and one or more second wirings electrically connected to the second inductor 2160 are pulled out to the outside of the inductor module, a wiring bracket can be used. By using the wiring bracket, the gap between the wirings can be maintained, their positions can be fixed, and workability can be improved. In addition to the configuration of the second extension portion 2193, according to Figure 21 The configuration of the wiring bracket of the inductor module of the embodiment corresponds to Figures 18 to 20 The detailed description of the wiring bracket is omitted, so any repeated description will be briefly described.

[0131] The inductor module may include a wiring lead-out portion extending from one side of the second side plate 2122 of the second accommodating portion 2120 to form a channel for wiring to pass through, and may include a first wiring support 2190 disposed in the wiring lead-out portion. The first wiring support 2190 may include a fifth base, a first extension, and a second extension 2193. The fifth base contacts the fourth base of the wiring lead-out portion. The first extension extends obliquely from the fifth base and includes a first through-hole through which one or more first wirings electrically connected to the first inductor 2150 and one or more second wirings electrically connected to the second inductor 2160 pass. The second extension 2193 extends from the first extension parallel to the fifth base. A hole is formed in the second extension 330 to improve operator convenience when connecting wiring. A coupling hole may be formed in the fifth base to allow it to be coupled to the fourth base. The fifth base is coupled to the fourth base through the coupling hole and secured.

[0132] In order to guide the pulling out of the wiring, a first through hole may be formed, wherein the first through hole includes a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion including two holes spaced apart from each other.

[0133] The wiring is introduced into the lower portion of the second extension portion, passes through the hole of the first bushing portion included in the first through-hole, is introduced into the wiring lead-out portion, and can be pulled out to the outside of the inductor module through the open space exposed upward.

[0134] When the inductor module is mounted on the inverter module, the inductor module is joined to the heat sink 1221 of the main heat sink of the inverter module, and a wiring lead-out portion 1222 through which the wiring of the inductor module is led out is formed in the heat sink 1221, so that the wiring can be pulled into the housing of the inverter module through the wiring lead-out portion 1125 of the heat sink 1221.

[0135] The inductor module according to the embodiment of the present invention can be as follows Figure 24 As shown. Figure 24 A detailed description of each configuration of the inductor module of the embodiment corresponds to Figures 1 to 10 A detailed description of the inductor module 100 is provided below, and any repeated descriptions will be briefly described below.

[0136] The inductor module according to an embodiment of the present invention includes a first inductor 3150 and a second inductor 3160, a first accommodating portion 3110 forming a first internal space for accommodating the first inductor 3150, and a second accommodating portion 3120 forming a second internal space for accommodating the second inductor 3160. The first accommodating portion 3110 and the second accommodating portion 3120 may be formed to be spaced apart from each other. The first inductor 3150 may be an inverter-side inductor, and the second inductor 3160 may be a grid-side inductor.

[0137] The first receiving portion 3110 includes a first base 3111 and a first side plate 3112 extending from the first base 3111, and the second receiving portion 3120 includes a second base 3121 and a second side plate 3122 extending from the second base 3121. A separation space 3140 may be formed between the first receiving portion 3110 and the second receiving portion 3120.

[0138] A length from the first base 3111 of the first receiving portion 3110 to the upper end of the first receiving portion 3110 may be longer than a length from the second base 3121 of the second receiving portion 3120 to the upper end of the second receiving portion 3120 .

[0139] The first inductor 3150 includes a plurality of coils 3151 and 3152, wherein the first base 3111 of the first accommodating portion 3110 includes a first coil placement portion 3113 in which a portion of the plurality of coils is disposed and a second coil placement portion 3114 in which the remaining portion of the plurality of coils is disposed, and wherein the first coil placement portion 3113 and the second coil placement portion 3114 can be formed to be spaced apart from each other. When multiple coils are disposed on a single base, the positions of the coils are not fixed and may be unstable. The first base 3111 includes a first coil placement portion 3113 and a second coil placement portion 3114 so that the coils are placed and fixed in a set position.

[0140] The first inductor 3150 may include a plurality of coils 3151 and 3152 and may include a coil fixing portion that contacts the first base 3111 and includes a coil penetration portion that penetrates the coils 3151 and 3152 to fix the position of the coils. The position may be fixed by the coil fixing portion. The first inductor 3150 may be disposed in the first receiving portion 3110 and molded, and the second inductor 3160 may include a plurality of coils 3161 and 3162 and may be disposed in the second receiving portion 3120 and molded.

[0141] When the multiple coils 3151 and 3152 of the first inductor 3150 are arranged and molded in the first accommodating portion 3110, a portion of the multiple first wirings each electrically connected to the terminals of the multiple coils 3151 and 3152 is also molded, and at least a portion of each of the multiple coils is exposed to the outside of the molded part, and the first wiring can be pulled out toward the second accommodating portion 3120 by passing between the coils exposed to the outside of the molded part.

[0142] When one or more first wirings electrically connected to the first inductor 3150 and one or more second wirings electrically connected to the second inductor 3160 are pulled out to the outside of the inductor module, a wiring bracket can be used. By using the wiring bracket, the gap between the wirings can be maintained, their positions can be fixed, and workability can be improved. Figure 24 Configuration of the wiring bracket of the inductor module of the embodiment Figures 18 to 20 Wiring bracket and according to Figure 21 The wiring bracket of the inductor module of the embodiment corresponds to the detailed description, so any repeated description will be briefly described.

[0143] The inductor module may include a wiring lead-out portion extending from one side of the second side plate 3122 of the second accommodating portion 3120 to form a channel for wiring to pass through, and may include a first wiring support 3190 disposed in the wiring lead-out portion. The first wiring support 3190 may include a fifth base, a first extension, and a second extension. The fifth base contacts the fourth base of the wiring lead-out portion. The first extension extends obliquely from the fifth base and includes a first through-hole through which one or more first wirings electrically connected to the first inductor 3150 and one or more second wirings electrically connected to the second inductor 3160 pass. The second extension extends from the first extension parallel to the fifth base. A hole is formed in the second extension to improve operator efficiency when connecting wiring. A coupling hole may be formed in the fifth base to allow it to be coupled to the fourth base. The fifth base is coupled to and secured to the fourth base via the coupling hole.

[0144] In order to guide the pulling out of the wiring, a first through hole may be formed, wherein the first through hole includes a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion including two holes spaced apart from each other.

[0145] The wiring is introduced into the lower portion of the second extension portion, passes through the hole of the first bushing portion included in the first through-hole, is introduced into the wiring lead-out portion, and can be pulled out to the outside of the inductor module through the open space exposed upward.

[0146] When the inductor module is mounted on the inverter module, the inductor module is joined to the heat sink 1221 of the main heat sink of the inverter module, and a wiring lead-out portion 1222 is formed in the heat sink 1221, through which the wiring of the inductor module is led out, so that the wiring can be pulled into the housing of the inverter module through the wiring lead-out portion 1125 of the heat sink 1221.

[0147] The inductor module according to the embodiment of the present invention can be as follows Figure 27 As shown. Figure 27 A detailed description of each configuration of the inductor module of the embodiment is given with Figures 1 to 10 The detailed description of the inductor module 100 corresponds to that of FIG. 1 , and any repeated description will be briefly described below.

[0148] The inductor module according to an embodiment of the present invention includes a first inductor 4150 and a second inductor 4160, a first accommodating portion 4110 forming a first internal space for accommodating the first inductor 4150, and a second accommodating portion 4120 forming a second internal space for accommodating the second inductor 4160. The first accommodating portion 4110 and the second accommodating portion 4120 may be formed to be spaced apart from each other. The first inductor 4150 may be an inverter-side inductor, and the second inductor 4160 may be a grid-side inductor.

[0149] The first receiving portion 4110 includes a first base 4111 and a first side plate 4112 extending from the first base 4111, and the second receiving portion 4120 includes a second base 4121 and a second side plate 4122 extending from the second base 4121. A separation space 4140 may be formed between the first receiving portion 4110 and the second receiving portion 4120.

[0150] A length from the first base 4111 of the first receiving portion 4110 to the upper end of the first receiving portion 4110 may be longer than a length from the second base 4121 of the second receiving portion 4120 to the upper end of the second receiving portion 4120 .

[0151] The first inductor 4150 may include a plurality of coils 4151 and 4152 and may include a coil fixing portion surrounding the coils. The position may be fixed by the coil fixing portion. The first inductor 4150 may be disposed and molded in the first receiving portion 4110, and the second inductor 4160 may include a plurality of coils 4161 and 4162 and may be disposed and molded in the second receiving portion 4120.

[0152] When one or more first wirings electrically connected to the first inductor 4150 and one or more second wirings electrically connected to the second inductor 4160 are pulled out to the outside of the inductor module, a wiring bracket can be used. By using the wiring bracket, the gap between the wirings can be maintained, their positions can be fixed, and workability can be improved. In addition to the configuration of the second wiring bracket 4290, according to Figure 21 Configuration of the wiring bracket of the inductor module of the embodiment Figures 18 to 20 The detailed description of the wiring bracket corresponds to that of the wiring bracket, and any repeated description will be briefly explained.

[0153] The height of the side panels of the first accommodating portion can extend to the uppermost end of the inductor module, and the entire first accommodating portion can be formed as a molded portion 4115. In order to pull the wiring from the molded first accommodating portion, a second wiring bracket 4290 can be included in the space between the first and second accommodating portions. The second wiring bracket 4290 may include: a sixth base, which is arranged in the space between the first and second accommodating portions; a third side panel, which extends from the sixth base; and a second through-hole, through which a plurality of first wirings pass through the third side panel adjacent to the first accommodating portion in the third side panel, each of the plurality of first wirings being electrically connected to each terminal of the plurality of coils. The second through-hole may include a first bushing portion, the first bushing portion including a plurality of second through-holes, wherein each of the plurality of second through-holes includes two holes spaced apart from each other.

[0154] The height of the third side panel adjacent to the first receiving portion may be higher than the height of the third side panel adjacent to the second receiving portion. The third side panel adjacent to the first receiving portion may be formed at the height where the first receiving portion is formed as the molded portion 4115, and the third side panel adjacent to the second receiving portion may be formed at the height where the second receiving portion is formed as the molded portion 4123.

[0155] The second accommodating portion 4120 may include a wiring lead-out portion extending from a side of the second side plate 4122 to form a passage for wiring to pass through, and may include a first wiring support 4190 disposed in the wiring lead-out portion. The first wiring support 4190 may include: a fifth base that contacts the fourth base of the wiring lead-out portion; a first extension portion that extends obliquely from the fifth base and includes a first through-hole through which at least one first wiring electrically connected to the first inductor 4150 and at least one second wiring electrically connected to the second inductor 4160 pass; and a second extension portion 4193 that extends from the first extension portion parallel to the fifth base. A coupling hole may be formed in the fifth base to facilitate coupling with the fourth base. The fifth base is coupled to and secured to the fourth base via the coupling hole.

[0156] The wiring is introduced into the lower portion of the second extension portion, passes through the hole of the first bushing portion included in the first through-hole, is introduced into the wiring lead-out portion, and can be pulled out to the outside of the inductor module through the upwardly exposed open space.

[0157] When the inductor module is mounted on the inverter module, the inductor module is joined to the heat sink 1221 of the main heat sink of the inverter module, and a wiring lead-out portion 1222 is formed in the heat sink 1221, through which the wiring of the inductor module is led out, so that the wiring can be pulled out into the housing of the inverter module through the wiring lead-out portion 1125 of the heat sink 1221.

[0158] The inductor module according to the embodiment of the present invention can be as follows Figure 30 As shown. Figure 27 A detailed description of each configuration of the inductor module of the embodiment is given with Figures 1 to 10 The detailed description of the inductor module 100 corresponds to that of FIG. 1 , and any repeated description will be briefly described below.

[0159] The inductor module according to an embodiment of the present invention includes a first inductor 3150 and a second inductor 3160, a first accommodating portion 3110 forming a first internal space for accommodating the first inductor 3150, and a second accommodating portion 3120 forming a second internal space for accommodating the second inductor 3160. The first accommodating portion 3110 and the second accommodating portion 3120 may be formed to be spaced apart from each other. The first inductor 3150 may be an inverter-side inductor, and the second inductor 3160 may be a grid-side inductor.

[0160] according to Figure 30 The inductor module of the embodiment may include a first accommodating portion in which the first inductor 150 is arranged in a direction in which the wiring is led out, and a second accommodating portion in which the second inductor 160 is arranged in a direction opposite to the direction in which the wiring is led out.

[0161] The first receiving portion 5110 includes a first base 5111 and a first side plate 5112 extending from the first base 5111, wherein the second receiving portion 5120 includes a second base 5121 and a second side plate 5122 extending from the second base 5121. A separation space may be formed between the first receiving portion 5110 and the second receiving portion 5120.

[0162] The coils 5151 and 5152 of the first inductor 150 and the coil 5161 of the second inductor 160 may have the same size. Therefore, the length from the first base 5111 of the first receiving portion 5110 to the upper end of the first receiving portion 5110 may be the same as the length from the second base 5121 of the second receiving portion 5120 to the upper end of the second receiving portion 5120.

[0163] The first inductor 5150 may include a plurality of coils 5151 and 5152 and may include a coil fixing portion that contacts the first base 5111 and includes a coil penetration portion that penetrates the coils 5151 and 5152 to fix the position of the coils. The position may be fixed by the coil fixing portion. The first inductor 5150 may be disposed in the first receiving portion 5110 and formed as a molded portion 5115, and the second inductor 5160 may include a plurality of coils 5161 and 5162 and may be disposed in the second receiving portion 5120 and formed as a molded portion 5123.

[0164] When one or more first wirings electrically connected to the first inductor 5150 and one or more second wirings electrically connected to the second inductor 5160 are pulled out of the inductor module, a wiring bracket can be used. By using the wiring bracket, the gaps between the wirings can be maintained, their positions can be fixed, and workability can be improved.

[0165] The height of the side panels of the first accommodating portion may extend to the uppermost end of the inductor module, and the entire first accommodating portion may be formed as a molded portion 5115. The height of the side panels of the second accommodating portion may extend to the uppermost end of the inductor module, and the entire second accommodating portion may be formed as a molded portion 5123. In order to pull out the second wiring from the molded second accommodating portion, a third wiring bracket 5290 may be included in the space between the first and second accommodating portions.

[0166] The third wiring support 5290 includes: a seventh base disposed in the space between the first and second accommodating portions; a fourth side plate extending from the seventh base; a third through-hole through which a plurality of second wirings pass through a fourth side plate adjacent to the second accommodating portion of the fourth side plate, each of the plurality of second wirings being electrically connected to each terminal of the plurality of coils; and a fourth through-hole through which a plurality of second wirings pass through a fourth side plate adjacent to the first accommodating portion of the fourth side plate. The height of the fourth side plate adjacent to the first accommodating portion of the fourth side plate can be the same as the height of the fourth side plate adjacent to the second accommodating portion of the fourth side plate. Since both the first and second accommodating portions are molded up to the top, they can include a first bushing portion including through-holes on both sides, wherein each through-hole includes two holes spaced apart from each other.

[0167] The first receiving portion includes a wiring lead-out portion extending from one side of the side plate to form a channel for the wiring to pass through, and may include a fourth wiring support 5190 disposed in the wiring lead-out portion. The fourth wiring support 5190 may include a ninth base and a fifth side plate, the ninth base being in contact with the eighth base of the wiring lead-out portion, and a fifth side plate extending from the ninth base and including a fifth through-hole, through which at least one first wiring electrically connected to the first inductor 5150 and at least one second wiring electrically connected to the second inductor 5160 pass.

[0168] The first and second wirings are introduced into the wiring lead-out portion through the fourth wiring supporter 5190 and are led out to the outside of the inductor module through the open space exposed upward.

[0169] When the inductor module is mounted on the inverter module, the inductor module is joined to the heat sink 1221 of the main heat sink of the inverter module, and a wiring lead-out portion 1222 through which the wiring of the inductor module is led out is formed in the heat sink 1221, so that the wiring can be pulled out into the housing of the inverter module through the wiring lead-out portion 1125 of the heat sink 1221.

[0170] By configuring the inductor module as described above, the inductor that generates a large amount of heat can be effectively dissipated, and the wiring connected to the inductor module can be effectively pulled out into the housing of the inverter module.

[0171] The inverter module according to an embodiment of the present invention includes: a housing 210 forming an internal space in which components are disposed; a main heat sink 220 including a heat sink plate coupled to a lower portion of the housing 210 and main heat sink fins extending from the heat sink plate; and an inductor module coupled and incorporated into an area of the lower portion of the heat sink plate of the main heat sink 220 where the main heat sink fins are not formed, and in which the inductor is disposed in the internal space. The inductor module may include: Figures 11 to 32 The detailed description of each inductor module is as follows: Figures 11 to 32 The inductor module corresponds to the detailed description of FIG, and therefore, any repeated description will be omitted below.

[0172] The main heat sink includes a wire lead-out portion 1125, from which multiple wires electrically connected to the inductor module are led. The wires led out of wire lead-out portion 1125 are guided to positions corresponding to the connectors to which they are connected and led. This improves workability when an operator guides the wires to the connectors where they are connected.

[0173] Although the present invention has been described with specific details (such as specific components and limited examples and drawings), these are only to help a more general understanding of the present invention, and the present invention is not limited to the above examples. A person skilled in the art with common knowledge in the field to which the present invention belongs can make various modifications and changes based on this description.

[0174] Therefore, the concept of the present invention should not be limited to the described embodiments, and all contents equivalent to or equivalent to the claims described below are included in the scope of the concept of the present invention.

Claims

1. An inductor module, comprising: a first inductor and a second inductor; a first accommodating portion, the first accommodating portion forming a first inner space for accommodating the first inductor; as well as a second accommodating portion, the second accommodating portion forming a second inner space for accommodating the second inductor, The first accommodation portion and the second accommodation portion are formed to be spaced apart from each other.

2. The inductor module according to claim 1, wherein The first receiving portion includes: a first base; and a first side plate, wherein the first side plate extends from the first base. The second receiving portion includes: a second base; and a second side plate, wherein the second side plate extends from the second base. The length from the first base of the first receiving portion to the upper end of the first receiving portion is longer than the length from the second base of the second receiving portion to the upper end of the second receiving portion.

3. The inductor module according to claim 2, in, The first inductor includes a plurality of coils, Wherein, the first base of the first receiving portion includes: a first coil seating portion on which a portion of the plurality of coils is disposed; and a second coil placement portion on which the other coils of the plurality of coils are placed, and Wherein, the first coil seating portion and the second coil seating portion are formed to be spaced apart from each other.

4. The inductor module according to claim 1, in, The first inductor is disposed in the first accommodation portion and molded, The second inductor is disposed in the second receiving portion and molded.

5. The inductor module according to claim 1, comprising: a first substrate, a lower portion of the first substrate being connected to a terminal of the first inductor; as well as a first terminal block provided on an upper portion of the first substrate and connected to a first wiring, The first terminal block is electrically connected to a terminal of the first inductor.

6. The inductor module according to claim 5, in, The first terminal block is electrically connected to a terminal of the first inductor through a conductive pattern of the first substrate.

7. The inductor module according to claim 5, wherein The first terminal block comprises: third pedestal; a bolt receiving portion extending downward from a center of the third base and penetrating the first base plate to form an inner space for receiving a bolt; and a combining portion extending downward from an edge of the third base and combining with the first substrate, and The first terminal block is combined with the ring terminal of the first wiring arranged on the third base through the bolt.

8. The inductor module according to claim 7, in, When the first inductor is disposed in the first accommodation portion and molded, the first substrate is molded and the third base of the first terminal block is not molded.

9. The inductor module according to claim 1, comprising: a second substrate, a lower portion of the second substrate being connected to a terminal of the second inductor; as well as a second terminal block provided in an upper portion of the second substrate to be connected to a second wiring, The second terminal block is electrically connected to a terminal of the second inductor.

10. The inductor module according to claim 1, comprising: a wiring lead-out portion extending from one side of the second side plate of the second accommodating portion to form a channel for the wiring to pass through; as well as A first wiring support, wherein the first wiring support is arranged on the wiring lead-out portion, wherein the first wiring support comprises: a fifth base, the fifth base being in contact with the fourth base of the wiring lead-out portion; a first extending portion extending obliquely from the fifth base and including a first through-hole through which at least one first wiring electrically connected to the first inductor and at least one second wiring electrically connected to the second inductor pass; and A second extending portion extends from the first extending portion in parallel with the fifth base.

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