Electronic component module and power supply device including the same

Abstract

The electronic component module includes a first printed circuit board; an inductor disposed on the first printed circuit board and including a core and a first coil disposed within the core; a metal plate disposed on the inductor; and a bus bar disposed below the inductor and coupled to the first printed circuit board; the first coil includes a first terminal protruding above the core and a second terminal protruding below the core, the first terminal being coupled to the metal plate and the second terminal being coupled to the bus bar.

Description

[Technical Field]

[0001] The present embodiment relates to an electronic component module and a power supply device including the same. [Background technology]

[0002] In recent years, power electronics technology has been demanding higher power and higher power density. To achieve higher power, devices with higher power must be selectively configured to achieve higher efficiency while miniaturizing products with lower heat loss.

[0003] In addition, each element should be placed to maximize space efficiency, while also taking into consideration factors such as the insulation distance between components and the power path. In particular, vibration resistance and cooling performance are also important design factors, and it is desirable to optimize them to achieve high power density.

[0004] A power supply device used in electrical equipment or data centers has its exterior formed by a housing, and a number of electronic components for driving the device are arranged inside the housing. The electronic components may include a transformer for voltage conversion and an inductor for obtaining inductance, and are arranged on a printed circuit board to form a module. Summary of the Invention [Problem to be solved by the invention]

[0005] The present embodiment aims to provide an electronic component module and a power supply device including the same that can improve the inter-component fastening structure, thereby increasing heat dissipation and power efficiency and enabling miniaturization. [Means for solving the problem]

[0006] The electronic component module of this embodiment includes a first printed circuit board; an inductor arranged on the first printed circuit board and including a core and a first coil arranged within the core; a metal plate arranged on the inductor; and a bus bar arranged below the inductor and coupled to the first printed circuit board, the first coil including a first terminal protruding above the core and a second terminal protruding below the core, the first terminal coupled to the metal plate, and the second terminal coupled to the bus bar.

[0007] The metal plate may include a first coupling groove to which the first terminal is coupled.

[0008] The bus bar may include an upper end portion including a second coupling groove for coupling with the second terminal, and a lower end portion protruding downward from the upper end portion to couple with the first printed circuit board.

[0009] The upper end and the lower end may be disposed perpendicular to each other.

[0010] The upper end portion may include a first upper end portion to which the second terminal is coupled, and a second upper end portion having a region at least partially separated from the first upper end portion and disposed outside the core.

[0011] The inductor may include a transformer disposed between the first printed circuit board and the metal plate and disposed on one side of the inductor, the transformer including a second core and a second coil disposed within the second core.

[0012] The winding direction of the first coil may be perpendicular to the winding direction of the second coil.

[0013] The power supply device of this embodiment includes a housing; and an electronic component module disposed within the housing, the electronic component module including: a first printed circuit board; an inductor disposed on the first printed circuit board and including a core and a first coil disposed within the core; a metal plate disposed on the inductor; and a bus bar disposed below the inductor and coupled to the first printed circuit board, the first coil including a first terminal protruding above the core and a second terminal protruding below the core, the first terminal coupled to the metal plate, and the second terminal coupled to the bus bar.

[0014] Another embodiment of an electronic component module includes a first printed circuit board having a first region and a second region; a metal plate arranged perpendicular to the first printed circuit board on the first region; a transformer and an inductor arranged on the second region; a second printed circuit board arranged perpendicular to the first printed circuit board on the second region; and a supporter arranged between the metal plate and the second printed circuit board, the supporter having at least a portion arranged between a side of the metal plate and a side of the second printed circuit board; and a second body arranged below the second body and coupled to the first printed circuit board.

[0015] The first body may include a first plate portion disposed between the metal plate and the second printed circuit board; and a second plate portion disposed outside the metal plate, and the first plate portion and the second plate portion may be disposed perpendicular to each other. [Effects of the Invention]

[0016] This embodiment has the advantage that the first coil and the first printed circuit board can be easily coupled via the bus bar, and the bus bar can be compactly coupled to the outer surface of the transformer via the bracket.

[0017] In addition, since the inductor forms a connection structure with multiple printed circuit boards via a single bus bar disposed only at the bottom, there is an advantage in that a large space can be secured within the housing.

[0018] Furthermore, by omitting the bus bars arranged in the horizontal direction of the core, a larger area for arranging the core can be secured, which has the advantage of increasing the volume ratio of the coil inside the core.

[0019] In addition, the supporter can insulate adjacent printed circuit boards from each other, thereby providing a larger space for component placement on the main printed circuit board. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view of an electronic component module in a power supply device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a plan view illustrating the top surface of the electronic component module according to the embodiment of the present invention. [Figure 3] FIG. 1 is an exploded perspective view of an electronic component module according to an embodiment of the present invention. [Figure 4] FIG. 2 is a plan view illustrating the top surfaces of a transformer and an inductor according to an embodiment of the present invention. [Figure 5] FIG. 2 is a perspective view of the electronic component module excluding the first printed circuit board according to the embodiment of the present invention. [Figure 6] FIG. 1 is a perspective view of a transformer according to an embodiment of the present invention. [Figure 7] FIG. 2 is an exploded perspective view of a transformer, a bus bar, and a bracket according to an embodiment of the present invention. [Figure 8] FIG. 2 is a plan view illustrating a portion of the top surface of a transformer according to an embodiment of the present invention. [Figure 9] FIG. 2 is a plan view illustrating a side surface of an inductor according to an embodiment of the present invention. [Figure 10] FIG. 1 is a perspective view illustrating a coupling configuration between an inductor and a bus bar according to an embodiment of the present invention. [Figure 11]10 is a perspective view illustrating a coupling configuration of a fourth printed circuit board and a fifth printed circuit board on a first printed circuit board according to an embodiment of the present invention; FIG. [Figure 12] FIG. 12 is a perspective view of a part of FIG. 11 as seen from above. [Figure 13] FIG. 2 is an exploded perspective view of a first printed circuit board and a support according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0022] However, the technical concept of the present invention is not limited to the described embodiments, but can be realized in various different forms, and one or more of the components of the embodiments can be selectively combined or substituted and used within the scope of the technical concept of the present invention.

[0023] Furthermore, unless otherwise clearly defined and described, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as meanings that are commonly understood by a person having ordinary knowledge in the technical field to which the present invention belongs, and commonly used terms such as predefined terms may be interpreted in light of the contextual meaning of the relevant art.

[0024] Furthermore, the terms used in the examples of the present invention are intended to explain the examples and are not intended to limit the present invention.

[0025] In this specification, unless otherwise specified, the singular form can also include the plural form, and when it is stated as "A and (and) at least one (or more) of B and C," it can include one or more of all combinations of A, B, and C.

[0026] Additionally, terms such as first, second, A, B, a, b, etc. may be used to describe components of embodiments of the present invention.

[0027] Such terms are used only to distinguish one component from another, and are not intended to limit the nature, order, or sequence of the components.

[0028] It should be noted that when a component is described as being "coupled," "coupled," or "connected" to another component, it includes not only the case where the component is directly coupled, coupled, or connected to the other component, but also the case where the component is "coupled," "coupled," or "connected" by yet another component between the component and the other component.

[0029] Furthermore, when it is described as being formed or disposed "above (above) or below (below)" each component, "above (above)" or "below (below)" includes not only the case where two components are in direct contact with each other, but also the case where one or more additional components are formed or disposed between the two components. Furthermore, when it is expressed as "above (above) or below (below)," it can mean not only the upper direction but also the lower direction based on one component.

[0030] FIG. 1 is a perspective view of an electronic component module in a power supply device according to an embodiment of the present invention; FIG. 2 is a plan view illustrating the top surface of an electronic component module according to an embodiment of the present invention; FIG. 3 is an exploded perspective view of an electronic component module according to an embodiment of the present invention; FIG. 4 is a plan view illustrating the top surfaces of a transformer and an inductor according to an embodiment of the present invention; FIG. 5 is a perspective view of an electronic component module excluding a first printed circuit board according to an embodiment of the present invention; FIG. 6 is a perspective view of a transformer according to an embodiment of the present invention; FIG. 7 is an exploded perspective view of a transformer, busbars, and brackets according to an embodiment of the present invention; and FIG. 8 is a plan view illustrating a portion of the top surface of a transformer according to an embodiment of the present invention.

[0031] 1 to 8, an electronic component module 10 according to an embodiment of the present invention may be disposed within a power supply device. The power supply device may have an outer shape formed by a housing, and the electronic component module 10 may be disposed within the housing. A space for disposing the electronic component module 10 may be formed within the housing.

[0032] The electronic component module 10 may include a first printed circuit board 20, a metal plate 80, a second printed circuit board 70, a third printed circuit board 60, a fourth printed circuit board 30, a transformer 100, and an inductor 200, but may be implemented without some of these components, and additional components are not excluded.

[0033] The first printed circuit board 20 may be called a main board, and the second to fifth printed circuit boards 80, 70, 60, and 30 may be called sub-boards.

[0034] The first printed circuit board 20 forms the base of the electronic component module 10. One or more electronic components for driving the power supply device may be disposed on the first printed circuit board 20. The metal plate 80, the second printed circuit board 70, the third printed circuit board 60, the fourth printed circuit board 30, the transformer 100, and the inductor 200 may be disposed on the first printed circuit board 20. The first printed circuit board 20 may be electrically connected to the metal plate 80, the second printed circuit board 70, the third printed circuit board 60, the fourth printed circuit board 30, the transformer 100, and the inductor 200.

[0035] The first printed circuit board 20 may have a first hole 26 to which the second printed circuit board 70 is coupled, a second hole 24 to which the third printed circuit board 60 is coupled, and a third hole 22 to which the fourth printed circuit board 30 is coupled. The first hole 26, the second hole 24, and the third hole 22 may be coupled to pass through the top and bottom surfaces of the first printed circuit board 20 in correspondence with the placement areas of the second printed circuit board 70, the third printed circuit board 60, and the fourth printed circuit board 30.

[0036] The metal plate 80 may be disposed on the upper part of the transformer 100 and the inductor 200. The metal plate 80 may cover the upper surfaces of the transformer 100 and the inductor 200. The first printed circuit board 20 and the metal plate 80 may be disposed to face each other based on the transformer 100 and the inductor 200. The cross-sectional area of ​​the metal plate 80 may correspond to the arrangement areas of the transformer 100 and the inductor 200.

[0037] The metal plate 80 may be made of a metal material. The metal plate 80 is disposed to cover the upper surfaces of the transformer 100 and the inductor 200, and can dissipate heat generated when the transformer 100 and the inductor 200 are driven. The metal plate 80 is electrically connected to the transformer 100 and the inductor 200, and may also be electrically connected to the first printed circuit board 20 via the second printed circuit board 70 and the third printed circuit board 60.

[0038] The metal plate 80 may include a fourth hole 82 and a fifth hole 81. The fourth hole 82 may be disposed to face the second printed circuit board 70 in the vertical direction and may be formed to penetrate from the upper surface to the lower surface of the metal plate 80. The fifth hole 81 may be disposed to face the third printed circuit board 60 in the vertical direction and may be formed to penetrate from the upper surface to the lower surface of the metal plate 80.

[0039] The second printed circuit board 70 may be disposed so as to cover one side of the transformer 100 and the inductor 200. The second printed circuit board 70 may be disposed perpendicular to the first printed circuit board 20 and the metal plate 80.

[0040] The second printed circuit board 70 may be electrically connected to the first printed circuit board 20 and the metal plate 80. A first coupling portion 72 may be disposed at a lower end of the second printed circuit board 70 to couple with the first hole 26. The first coupling portion 72 may be formed to protrude downward relative to other regions. A second coupling portion 74 may be disposed at an upper end of the second printed circuit board 70 to couple with the fourth hole 82. The second coupling portion 74 may be formed to protrude upward relative to other regions. A circuit pattern may be formed on the first coupling portion 72 and the first hole 26 to electrically connect the first printed circuit board 20 and the second printed circuit board 70 to each other. A circuit pattern may be formed on the second coupling portion 74 and the fourth hole 82 to electrically connect the metal plate 80 and the second printed circuit board 70 to each other.

[0041] The third printed circuit board 60 may be disposed to cover the other side of the transformer 100 and the inductor 200. The other side may face the one side. The second printed circuit board 70 and the third printed circuit board 60 may be disposed to face each other based on the transformer 100 and the inductor 200. The third printed circuit board 60 may be disposed perpendicular to the first printed circuit board 20 and the metal plate 80. The third printed circuit board 60 may be disposed parallel to the second printed circuit board 70.

[0042] The third printed circuit board 60 may be electrically connected to the first printed circuit board 20 and the metal plate 80. A third coupling portion 62 may be disposed at a lower end of the third printed circuit board 60 to couple with the second hole 24. The third coupling portion 62 may be formed to protrude downward relative to other regions. A fourth coupling portion 64 may be disposed at an upper end of the third printed circuit board 60 to couple with the fifth hole 81. The fourth coupling portion 64 may be formed to protrude upward relative to other regions. A circuit pattern may be formed at the third coupling portion 62 and the second hole 24 to electrically connect the first printed circuit board 20 and the third printed circuit board 60 to each other. A circuit pattern may be formed at the fourth coupling portion 64 and the fifth hole 81 to electrically connect the metal plate 80 and the third printed circuit board 60 to each other.

[0043] The fourth printed circuit board 30 may be disposed on the first printed circuit board 20. The fourth printed circuit board 30 may be disposed perpendicular to the first printed circuit board 20. The fourth printed circuit board 30 may be disposed at an end of the first printed circuit board 20. The fourth printed circuit board 30 may be disposed a predetermined distance away from the third printed circuit board 60. A fifth coupling portion 32 protruding downward from a lower end of the fourth printed circuit board 30 may be formed. The fifth coupling portion 32 may be coupled to the third hole 22. A circuit pattern electrically connecting the fourth printed circuit board 30 and the first printed circuit board 20 may be formed on the fifth coupling portion 32 and the third hole 22. A coupling structure of the third printed circuit board 60 and the fourth printed circuit board 30 on the first printed circuit board 20 will be described later.

[0044] The transformer 100, which is for voltage conversion within the power supply device, may be disposed between the first printed circuit board 20 and the metal plate 80. The transformer 100 may be electrically connected to the first printed circuit board 20 and the metal plate 80. The lower surface of the transformer 100 may face the upper surface of the first printed circuit board 20, and the upper surface of the transformer 100 may face the lower surface of the metal plate 80.

[0045] The transformer 100 may include a core 110, a first coil 120, and a second coil .

[0046] The core 110 may be made of a magnetic material. The upper and lower surfaces of the core 110 may be open. The core 110 may be formed by combining a plurality of split cores. For example, the plurality of split cores may be interconnected in a direction (first direction) in which the second printed circuit board 70 and the third printed circuit board 60 face each other. Legs (not shown) may be arranged on inner surfaces of the plurality of split cores facing each other so that the first coil 120 and the second coil 130 are coupled or wound around them. The split cores may be E-shaped cores. The legs may be arranged on each of the plurality of split cores and may have a single axial shape due to their interconnection. The first coil 120 and the second coil 130 may wrap around or be arranged along the legs.

[0047] The core 110 may have protrusions 112 and 114 on the upper and lower surfaces thereof, respectively, that protrude upward or downward from other regions. A plurality of the protrusions 112 and 114 may be provided on the upper surface of the core 110, and arranged to face each other around the open upper surface of the core 110. A plurality of the protrusions 112 and 114 may be provided on the lower surface of the core 110, and arranged to face each other around the open lower surface of the core 110. The core 110 may have a side portion 111 to which a bracket 150 (described later) is coupled. The protrusions 112 and 114 may be provided on the upper and lower portions of the side portion 111, respectively.

[0048] The first coil 120 may be disposed inside the core 110. The first coil 120 may be wound around the legs. The first coil 120 has a first end 122 forming one end and a second end 124 forming the other end, and the first end 122 and the second end 124 may be disposed outside the core 110. The region between the first end 122 and the second end 124 may be wound around the legs. The first coil 120 may be a primary coil.

[0049] The second coil 130 may be disposed inside the core 110. The second coil 130 may be coupled to the leg portion. The second coil 130 may be formed in a plate shape. A plurality of second coils 130 may be provided and spaced apart from each other. For example, four second coils 130 may be provided and spaced apart from each other in the first direction. The second coils 130 divide the area where the first coil 120 is disposed into a plurality of areas. A third end 132 and a fourth end 133 protruding upward may be disposed on both ends of the second coil 130. The third end 132 and the fourth end 133 may be called terminal portions.

[0050] The third end 132 and the fourth end 133 may be coupled to the metal plate 80. The metal plate 80 may have a coupling groove 83 formed therein so that the third end 132 and the fourth end 133 can be coupled to each other. The third end 132 and the fourth end 133 of the plurality of second coils 130 may be arranged so that at least a portion of each of the second coils 130 does not overlap in the first direction. The second coil 130 may be a secondary coil.

[0051] In this embodiment, the first coil 120 is described as a primary coil and the second coil 130 is described as a secondary coil, but this is not limited thereto, and the second coil 130 may be a primary coil and the first coil 120 may be a secondary coil.

[0052] Meanwhile, an insulating sheet (not shown) may be disposed between the side of the second coil 130 and the first coil 120 for insulation.

[0053] The first coil 120 may be coupled to bus bars 180 and 190. One end of each of the bus bars 180 and 190 may be coupled to the first coil 120, and the other end may be coupled to the first printed circuit board 20. The other ends of the bus bars 180 and 190 may be soldered onto the first printed circuit board 20. The other lower surfaces of the bus bars 180 and 190 may contact the upper surface of the first printed circuit board 20.

[0054] Alternatively, holes (not shown) may be formed on the first printed circuit board 20 so that the other ends of the bus bars 180 and 190 can pass through them, and the other ends of the bus bars 180 and 190 may be coupled to the first printed circuit board 20 so that they pass through the holes.

[0055] The bus bars 180 and 190 may be disposed on the side surface 111 of the core 110. The bus bars 180 and 190 may be disposed to cover at least a portion of the side surface 111. The bus bars 180 and 190 may be spaced a predetermined distance from the side surface 111. An insulating sheet or insulating tape may be disposed between the bus bars 180 and 190 and the side surface 111 for insulation.

[0056] The bus bars 180 and 190 may include a first bus bar 180 to which the first end 122 is coupled and a second bus bar 190 to which the second end 124 is coupled.

[0057] The first bus bar 180 may include a first upper end 182, a first lower end 186, and a first connecting portion 184. The first upper end 182 may be disposed parallel to the first printed circuit board 20 or the metal plate 80. A first coupling groove 181 may be formed in the first upper end 182 to couple with the first end 122. The first coupling groove 181 may be formed to penetrate from the upper surface to the lower surface of the first upper end 182. The first end 122 may be coupled to the first coupling groove 181 by passing through it. The first end 122 may be soldered or fused within the first coupling groove 181.

[0058] The first lower end 186 may be coupled to the metal plate 80. The first lower end 186 may form a lower end of the first bus bar 180. The first lower end 186 may be disposed parallel to the first printed circuit board 20, the metal plate 80, and the first upper end 182. The first lower end 186 may be disposed to overlap the first upper end 182 in the vertical direction.

[0059] The first connecting portion 184 may be disposed to connect the first upper end portion 182 and the first lower end portion 186. The first connecting portion 184 may be disposed perpendicular to the first printed circuit board 20 or the metal plate 80.

[0060] The first bus bar 180 may be made of a metal material, and the first upper end 182, the first lower end 186, and the first connecting portion 184 may be integrally formed.

[0061] The second bus bar 180 may include a second upper end 192, a second lower end 198, and a second connecting portion. The second upper end 192 may be disposed parallel to the first printed circuit board 20 or the metal plate 80. A second coupling groove 191 may be formed in the second upper end 192 to couple with the second end 124. The second coupling groove 191 may be formed to penetrate from the upper surface to the lower surface of the second upper end 192. The second end 124 may be coupled to the second coupling groove 191 by passing through it. The second end 124 may be soldered or fused within the second coupling groove 191.

[0062] The second lower end 198 may be coupled to the metal plate 80. The second lower end 198 may form a lower end of the second bus bar 190. The second lower end 198 may be disposed parallel to the first printed circuit board 20, the metal plate 80, and the second upper end 192. The second lower end 198 may be disposed to overlap the second upper end 192 in the vertical direction.

[0063] The second connecting portion may have a region that is bent at least once. The second connecting portion may include a 2-1 connecting portion 194 and a 2-2 connecting portion 196.

[0064] The 2-1 connecting portion 194 may be bent horizontally from the lower end of the second upper end portion 192, and the lower end may be connected to the upper end of the 2-2 connecting portion 196. One end of the 2-1 connecting portion 194 may be connected to the lower end of the second upper end portion 192, and the other end of the 2-1 connecting portion 194 may extend horizontally to approach the first bus bar 180. As a result, both ends 122 and 124 of the first coil 120 may be spaced apart by a predetermined distance.

[0065] The 2-2 connecting portion 196 may be disposed to connect the 2-1 connecting portion 194 and the second lower end portion 198. The 2-2 connecting portion 196 may be disposed perpendicular to the first printed circuit board 20 or the metal plate 80. The 2-2 connecting portion 196 may be disposed perpendicular to the second upper end portion 192 and the second lower end portion 198. The 2-2 connecting portion 196 may be disposed perpendicular to the 2-1 connecting portion 194. The 2-2 connecting portion 196 may be spaced a predetermined distance from the first connecting portion 184.

[0066] The distance between the first upper end 182 and the second upper end 192 may be longer than the distance between the first connecting portion 184 and the 2-2 connecting portion 196. This is due to the arrangement structure of the second connecting portion 192 described above, and the shape of the bus bars 180 and 190 can ensure a sufficient distance between both ends of the first coil 120 in the coupling region with the first coil 120, and the metal plate 80 has a relatively small arrangement area, thereby ensuring a larger space for arranging components on the metal plate 80.

[0067] A bracket 150 may be disposed on one side of the transformer 100 to support the bus bars 180 and 190 on the outer surface of the core 110. The bus bars 180 and 190 may be firmly fixed to the outer side of the side portion 111 of the core 110 via the bracket 150. The bracket 150 may be made of plastic.

[0068] The bracket 150 may include an upper surface 152 , a lower surface 155 , and a side surface 160 .

[0069] The upper surface portion 152 may be bent inward from the upper end of the side surface portion 160 to be coupled to the core 110. A plurality of upper surface portions 152 may be provided and spaced apart from each other. The upper surface portion 152 and the lower surface portion 155 may be respectively disposed in four corner regions of the side surface portion 160. The lower surface of the upper surface portion 152 may contact the upper surface of the core 110. The lower surface of the upper surface portion 152 may contact the upper surface of the protrusion 114. A rib 151 protruding downward may be formed on the lower surface of the upper surface portion 152. The rib 151 may be disposed at the lower end of the upper surface portion 152 extending outward. A side surface of the rib 151 may contact a side surface of the protrusion 114. That is, the upper surface portion 152 may be hook-coupled to the core 110 via the rib 151.

[0070] The lower surface portion 155 may be bent inward from the lower end of the side surface portion 160 to be coupled to the core 110. A plurality of lower surface portions 155 may be provided and spaced apart from each other. An upper surface of the lower surface portion 155 may contact the lower surface of the core 11. An upper surface of the lower surface portion 155 may contact the lower surface of the protrusion 112. An upwardly protruding rib 156 may be formed on the upper surface of the lower surface portion 155. The rib 156 may be disposed at the upper end of the lower surface portion 155 extending outward. A side surface of the rib 156 may contact a side surface of the protrusion 112. The lower surface portion 155 may be hook-coupled to the core 110 via the rib 156.

[0071] In summary, the upper surface portion 152 and the lower surface portion 155 cover the upper and lower surfaces of the core 110 and can be hook-coupled to the protrusions 112 and 114 .

[0072] The side surface portion 160 may include a first through hole 162, a second through hole 164, a third through hole 166, and a fourth through hole 168. The first to fourth through holes 162, 164, 166, and 168 may be formed to penetrate from the inner surface to the outer surface of the side surface portion 160.

[0073] The first through hole 162 may be formed in a region facing the first upper end portion 182, and the first upper end portion 182 may pass through it. The first upper end portion 182 may pass through the first through hole 162 and a portion of the first upper end portion 182 may be disposed outside the bracket 150. The cross-sectional area of ​​the first through hole 162 may be larger than the cross-sectional area of ​​the first upper end portion 182. The vertical length of the first through hole 162 may be longer than the vertical thickness of the first upper end portion 182. This may ensure sufficient free movement space for the first bus bar 180.

[0074] The second through hole 164 may be formed in a region facing the second upper end 192, and the second upper end 192 may pass through it. The second upper end 192 may pass through the second through hole 164 and a portion of the second upper end 192 may be disposed outside the bracket 150. The cross-sectional area of ​​the second through hole 164 may be larger than the cross-sectional area of ​​the second upper end 192. The vertical length of the second through hole 164 may be longer than the vertical thickness of the second upper end 192. This may ensure sufficient free movement space for the second bus bar 190.

[0075] A first separation groove 161 may be disposed between an area where the first through hole 162 is formed and an area where the second through hole 164 is formed on the upper end of the side surface portion 160. The third through hole 166 may be formed in an area facing the first connecting portion 184 to expose the first connecting portion 184 to the outside.

[0076] The third through-hole 166 may be disposed below the first through-hole 162. At least a portion of the first connecting portion 184 may be exposed to the outside of the bracket 150 through the third through-hole 166.

[0077] The fourth through hole 168 is formed in a region facing the second connecting portion 192 and the 2-2 connecting portion 196 and may expose the second connecting portion 192 and the 2-2 connecting portion 196 to the outside. At least a portion of the fourth through hole 168 may be disposed below the second through hole 162. At least a portion of the second connecting portion 192 and the 2-2 connecting portion 196 may be exposed to the outside of the bracket 150 through the fourth through hole 168.

[0078] A first guide groove 172 and a second guide groove 174 may be disposed at a lower end of the side portion 160, the first guide groove 172 being recessed higher than other regions. The first lower end portion 186 may be coupled to the first guide groove 172. At least a portion of the first lower end portion 186 may protrude outward from the bracket 150 through the first guide groove 172. The length of the first guide groove 172 in the first direction may correspond to or be longer than the length of the first lower end portion 186 in the first direction.

[0079] The second lower end portion 198 may be coupled to the second guide groove 174. At least a portion of the second lower end portion 198 may pass through the second guide groove 174 and protrude outward from the bracket 150. The length of the second guide groove 174 in the first direction may correspond to or be longer than the length of the second lower end portion 198 in the first direction.

[0080] Depending on the arrangement of the bus bars 180 and 190, the distance between the first through hole 162 and the second through hole 164 may be greater than the distance between the first guide groove 172 and the second guide groove 174.

[0081] The side surface portion 160 may have at least one hole formed therein to expose a side surface of the core 110. For example, the side surface portion 160 may have a first exposure hole 178 and a second exposure hole 176 formed therein. The second exposure hole 176 may be disposed below the first exposure hole 178. At least a portion of the side surface portion 111 of the core 110 may be exposed to the outside through the first exposure hole 178 and the second exposure hole 176. This may improve the heat dissipation efficiency of the transformer 100.

[0082] The above-described structure has the advantage that the first coil and the first printed circuit board can be easily coupled to each other via the bus bar, and the bus bar can be compactly coupled to the outer surface of the transformer via the bracket.

[0083] FIG. 9 is a plan view illustrating a side surface of an inductor according to an embodiment of the present invention, and FIG. 10 is a perspective view illustrating a coupling form between an inductor and a bus bar according to an embodiment of the present invention.

[0084] 3, 5, 9, and 10, the inductor 200 may be disposed on one side of the transformer 100. The inductor 200, which is intended to obtain inductance within the power supply device, may be disposed between the first printed circuit board 20 and the metal plate 80. The inductor 200 may have a lower surface facing the upper surface of the first printed circuit board 20 and an upper surface facing the lower surface of the metal plate 80. The inductor 200 may be disposed to be spaced a predetermined distance horizontally from the transformer 100.

[0085] The inductor 200 may include a core 210 and a coil 240 .

[0086] The core 210 has the characteristics of a magnetic circuit and can serve as a path for magnetic flux. The core 210 may be formed by combining a plurality of split cores. Each split core may be an E-shaped or I-shaped core. If the split cores are E-shaped cores, they may be arranged in a bilaterally symmetrical shape. The core 210 may include a magnetic material. Legs may be formed on the inner surface of the split core to which the coil 240 is connected. The legs may be arranged on each of the plurality of split cores and may have a single axial shape due to their mutual combination. The coil 240 may wrap around the legs or be arranged along the periphery of the legs.

[0087] The coil 240 may be made of a conductive metal. The coil 240 may be formed in the form of a wound metal wire or in the shape of a plate. A plurality of the coils 240 may be provided and spaced apart from each other in a second direction perpendicular to the first direction. An insulating plate may be disposed between the plurality of coils 240 for insulation, or the surfaces of adjacent coils 240 may be coated with an insulating material.

[0088] The winding direction of the coil 240 in the inductor 200 may be perpendicular to the winding direction of the first coil 120 in the transformer 100 .

[0089] Each coil 240 may include terminals 220 and 230 electrically connected to the first printed circuit board 20 and the metal plate 80. The terminals 220 and 230 may be formed by both ends of a metal wire. The terminals 220 and 230 may include a first terminal 220 protruding above the core 210 and a second terminal 230 protruding below the core 210. The first terminal 220 and the second terminal 230 may be disposed perpendicular to the first printed circuit board 20 or the metal plate 80. The first terminal 220 and the second terminal 230 may be disposed symmetrically with respect to the core 210. A coupling groove 84 may be formed on the metal plate 80 to couple with the first terminal 220. Thus, the coil 240 may be electrically connected to the metal plate 80.

[0090] The second terminal 230 may be coupled to a bus bar 250. The coil 240 may be electrically connected to the first printed circuit board 20 via the bus bar 250.

[0091] The bus bar 250 may include upper ends 252 and 254 and a lower end 256 bent downward from the ends of the upper ends 252 and 254. The upper ends 252 and 254 and the lower end 256 may be made of a metal material and may be integrally formed.

[0092] The upper ends 252, 254 may include a first upper end 252 and a second upper end 254. The upper ends 252, 254 may have a semicircular cross section. The first upper end 252 and the second upper end 254 may have regions where at least a portion is parallel to each other. The first upper end 252 and the second upper end 254 may have regions where they are horizontally spaced apart. At least a portion of the second upper end 254 may have a region that does not overlap with the core 200 in the vertical direction.

[0093] The first upper end 252 may have a coupling hole formed therein to couple with the second terminal 230. A plurality of coupling holes may be arranged corresponding to the number of the coils 240 and the second terminals 230. The second terminals 230 may be inserted into the coupling holes. By coupling the second terminals 230, the bus bar 250 may be electrically connected to the coils 240.

[0094] The lower end 256 may be bent downward from the end of the second upper end 254 and disposed perpendicular to the upper end portions 252 and 254. The lower end 256 may protrude downward from the lower surfaces of the upper end portions 252 and 254. The lower end 256 may be coupled to a coupling hole in the first printed circuit board 20. Thus, the bus bar 250 may be electrically connected to the first printed circuit board 20.

[0095] According to the above structure, the inductor 200 forms a coupling structure with the multiple printed circuit boards 20, 80 via a single bus bar 250 arranged only at the bottom, which has the advantage of ensuring a large space within the housing.

[0096] Furthermore, since the bus bars arranged in the horizontal direction of the core 210 are omitted, a larger area for arranging the core 210 can be secured, which has the advantage of increasing the volume ratio of the coil inside the core 210.

[0097] Furthermore, the length of the bus bar for electrical connection can be relatively reduced, which has the advantage of improving power efficiency.

[0098] FIG. 11 is a perspective view illustrating the combination of a fourth printed circuit board and a fifth printed circuit board on a first printed circuit board according to an embodiment of the present invention, FIG. 12 is a perspective view of a portion of FIG. 11 viewed from above, and FIG. 13 is an exploded perspective view of the first printed circuit board and a support according to an embodiment of the present invention.

[0099] 1 to 3 and 11 to 13, the electronic component module 10 may have multiple regions with different functions. For example, the first printed circuit board 20 may include a first region A having a first function and a second region B having a second function. Electronic components for the first function may be arranged in the first region A, and electronic components for the second function (e.g., a transformer 100 and an inductor 200) may be arranged in the second region B. The first function and the second function are electrical or circuit functions. For example, the electronic component module 10 may convert a voltage of a first magnitude transmitted from the first region A to a voltage of a second magnitude in the second region B, or convert a voltage of a second magnitude transmitted from the second region B to a voltage of the first magnitude in the first region A.

[0100] Therefore, the fourth printed circuit board 30 arranged in the first area A can operate with a first function, and the third printed circuit board 60 arranged in the second area B can operate with a second function.

[0101] 2, the first region A and the second region B may be separated by an imaginary line L. Since the first region A and the second region B have different electrical functions, a shielding portion (not shown) may be disposed on the imaginary line L to prevent noise generation between the first region A and the second region B. The shielding portion may be formed in a metal plate shape and may separate the first region A and the second region B from each other. The shielding portion may be disposed perpendicular to the first printed circuit board 20.

[0102] The electronic component module may include a supporter 300 to insulate the third printed circuit board 60 and the fourth printed circuit board 30, which are coupled to the shielding portion or arranged adjacent to each other. The supporter 300 may be coupled to the first printed circuit board 20 and disposed between the third printed circuit board 60 and the fourth printed circuit board 30. The supporter 300 may be made of a plastic or resin material.

[0103] In detail, the supporter 300 may include a first body 310 and a second body 350 .

[0104] The first body 310 may be disposed between the third printed circuit board 60 and the fourth printed circuit board 30. The vertical length of the first body 310 may be equal to or longer than the vertical length of the third printed circuit board 60 or the fourth printed circuit board 30. The first body 310 may be formed to protrude upward from the upper surface of the second body 350. The first body 310 may have a bar shape. The first body 310 may have a substantially "L" shaped cross section.

[0105] The first body 310 may include a first plate portion 312 and a second plate portion 314. The first plate portion 312 and the second plate portion 314 may be arranged perpendicular to each other. One side of the first plate portion 312 may be arranged to face a side of the third printed circuit board 60, and the other side may be arranged to face a side of the fourth printed circuit board 30. Both sides of the first plate portion 312 may be arranged to contact or be spaced apart from the side of the third printed circuit board 60 and the side of the fourth printed circuit board 30, respectively.

[0106] An outwardly protruding guide rib 313 may be formed on one side of the first plate portion 312 facing the third printed circuit board 60. The guide rib 313 may be disposed adjacent to an upper end of the first plate portion 312. An outer surface of the guide rib 313 may be disposed to face an inner surface of the third printed circuit board 60. The outer surface of the guide rib 313 may contact the inner surface of the third printed circuit board 60. A guide groove 318 may be formed inside the guide rib 313 by the guide rib 313, into which a side surface of the third printed circuit board 60 is coupled. Thus, the inner and outer surfaces of the third printed circuit board 60 may be supported by the inner surface of the housing and the guide rib 313.

[0107] The second plate portion 314 is disposed outside the first plate portion 312 and may support an outer surface of the fourth printed circuit board 30. The second plate portion 314 may also be understood as protruding from the other side of the first plate portion 312 facing the fourth printed circuit board 30. The second plate portion 314 may contact the outer surface of the fourth printed circuit board 30. The outer surface of the fourth printed circuit board 30 may be supported by the inner surface of the second plate portion 314, and the side of the fourth printed circuit board 30 may be supported by the other side of the first plate portion 312. The length of protrusion of the first plate portion 312 from the inner surface of the second plate portion 314 may be longer than the thickness of the third printed circuit board 60 or the fourth printed circuit board 30.

[0108] The second body 350 may be disposed below the first body 310. The second body 350 may form a lower end of the supporter 300. The second body 350 may be coupled to the first printed circuit board 20. A portion of a side of the first printed circuit board 20 may be cut inward to include a coupling groove 29 for coupling with the second body 350. The coupling groove 29 may be disposed to overlap with the virtual line L and a portion of an arrangement area of ​​a shield part. The coupling groove 29 may be a hole shape that penetrates from the top surface to the bottom surface of the first printed circuit board 20.

[0109] The second body 350 may include an upper plate 320 , a lower plate 340 and a side plate 330 .

[0110] The upper plate 320 may be disposed on the first printed circuit board 20. An upper surface of the upper plate 320 may support a lower end of the first body 310. A portion of the upper surface of the upper plate 320 may contact a lower surface of the third printed circuit board 60. The coupling groove 29 may be formed such that a length of the second body 350 disposed in the second region B based on the side plate 330 is longer than a length of the second body 350 disposed in the first region A.

[0111] First ribs 322 and 324 protruding downward may be disposed on the lower surface of the upper plate 320. The lower surfaces of the first ribs 322 and 324 may contact the upper surface of the first printed circuit board 20. A portion of the lower surface of the upper plate 320 may be spaced a predetermined distance from the upper surface of the first printed circuit board 20 via the first ribs 322 and 324. A plurality of first ribs 322 and 324 may be disposed on both ends of the lower surface of the upper plate 320.

[0112] The lower plate 340 may be disposed under the first printed circuit board 20. An upper surface of the lower plate 340 may be disposed to face a lower surface of the first printed circuit board 20. The lower plate 340 may be disposed to face the upper plate 320.

[0113] The upper surface of the lower plate 340 may be provided with second ribs 342 and 344 protruding upward. Upper surfaces of the second ribs 342 and 344 may contact the lower surface of the first printed circuit board 20. A portion of the upper surface of the lower plate 340 may be spaced a predetermined distance from the lower surface of the first printed circuit board 20 via the second ribs 342 and 344. A plurality of second ribs 342 and 344 may be provided on both ends of the upper surface of the lower plate 340. The second ribs 342 and 344 of the lower plate 340 and the first ribs 322 and 324 of the upper plate 320 may be arranged symmetrically to each other.

[0114] The vertical separation distance between the first ribs 322 and 324 and the second ribs 342 and 344 may correspond to the vertical thickness of the first printed circuit board 20 .

[0115] The side plate 330 may be disposed to connect the upper plate 320 and the lower plate 340. The side plate 330 may be disposed perpendicular to the upper plate 320 and the lower plate 340. The side plate 330 may be disposed to pass through the coupling groove 29. The vertical length of the side plate 330 may be longer than the vertical thickness of the first printed circuit board 20. The side surface of the first printed circuit board 20 and the outer surface of the side plate 330 may be flush with each other. The second body 350 may be coupled to the first printed circuit board 20 by sliding the side plate 330 within the coupling groove 29. To facilitate sliding, at least a portion of the upper surfaces of the ribs 322, 324, 342, and 344 of the upper plate 320 and the lower plate 340 may be formed with an inclined surface having a height different from that of other regions.

[0116] According to the above-described structure, it is possible to insulate adjacent printed circuit boards from each other via the supporter, thereby providing a larger space for component placement on the main printed circuit board.

[0117] Although all components constituting the embodiments of the present invention have been described above as being combined or operating in combination, the present invention is not necessarily limited to these embodiments. That is, all components may be selectively combined and operate in combination as long as it is within the scope of the present invention. Furthermore, unless otherwise specified, the terms "comprise," "comprise," "have," etc., used above, mean that the corresponding component may be present, and should be interpreted as including other components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted in accordance with the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly defined in the present invention.

[0118] The above description merely exemplifies the technical concept of the present invention, and various modifications and changes can be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only and do not limit the technical concept of the present invention. The scope of the present invention should be interpreted by the following claims, and all technical concepts within the scope equivalent thereto should be interpreted as being within the scope of the present invention.

Claims

1. a first printed circuit board; an inductor disposed on the first printed circuit board and including a core and a first coil disposed within the core; a metal plate disposed on the inductor; and a bus bar disposed below the inductor and coupled to the first printed circuit board; the first coil includes a first terminal protruding above the core and a second terminal protruding below the core, the first terminal is coupled to the metal plate; The electronic component module is characterized in that the second terminal is coupled to the bus bar.

2. The electronic component module according to claim 1 , wherein the metal plate includes a first coupling groove to which the first terminal is coupled.

3. 3. The electronic component module according to claim 1, wherein the bus bar includes an upper end portion including a second coupling groove to which the second terminal is coupled, and a lower end portion protruding downward from the upper end portion to couple to the first printed circuit board.

4. 4. The electronic component module according to claim 3, wherein the upper end and the lower end are disposed perpendicular to each other.

5. 5. The electronic component module according to claim 3, wherein the upper end portion includes a first upper end portion to which the second terminal is coupled, and a second upper end portion having an area at least partially separated from the first upper end portion and positioned outside the core.

6. a transformer disposed between the first printed circuit board and the metal plate and disposed on one side of the inductor; 6. The electronic component module according to claim 1, wherein the transformer includes a second core and a second coil disposed within the second core.

7. 7. The electronic component module according to claim 6, wherein the winding direction of the first coil is perpendicular to the winding direction of the second coil.

8. Housing; and an electronic component module disposed within the housing; The electronic component module includes: a first printed circuit board; an inductor disposed on the first printed circuit board and including a core and a first coil disposed within the core; a metal plate disposed on the inductor; and a bus bar disposed below the inductor and coupled to the first printed circuit board; the first coil includes a first terminal protruding above the core and a second terminal protruding below the core, the first terminal is coupled to the metal plate; The power supply device, wherein the second terminal is coupled to the bus bar.

9. a first printed circuit board including a first region and a second region; a metal plate disposed perpendicular to the first printed circuit board on the first region; a transformer and an inductor disposed on the second region; a second printed circuit board positioned perpendicular to the first printed circuit board on the second region; and a supporter disposed between the metal plate and the second printed circuit board; The supporter is a first body at least partially disposed between a side surface of the metal plate and a side surface of the second printed circuit board; and an electronic component module including a second body disposed below the first body and coupled to the first printed circuit board;

10. The first body includes: a first plate portion disposed between the metal plate and the second printed circuit board; and a second plate portion disposed on the outer side of the metal plate; The electronic component module according to claim 9 , wherein the first plate portion and the second plate portion are arranged perpendicular to each other.

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