Electronic component module and power supply device including the same

Abstract

The electronic component module includes a first printed circuit board; a transformer disposed on the first printed circuit board and including a core and a first coil disposed within the core; a second printed circuit board disposed on the transformer; a bus bar disposed outside the core and to which both ends of the first coil are coupled; and a bracket disposed outside the bus bar and coupled to the core.

Description

Technical Field

[0001] This embodiment relates to an electronic component module and a power supply device including the same.

Background Art

[0002] In recent years, power electronics technology has been demanding high power and high power density. For high power, it must be realized with a miniaturized product that selectively configures elements with higher power and has less heat generation loss while increasing efficiency.

[0003] Also, each element should be arranged so that the space efficiency is maximized, and at the same time, matters such as the insulation distance between components and the power path should be considered together. In particular, seismic resistance and cooling performance are also important design factors and are desired to be optimized to achieve high power density.

[0004] The power supply device used in electrical equipment or a data center has an outer shape formed by a housing, and a large number of electronic components for driving are arranged in the housing. The electronic components can 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

Problems to be Solved by the Invention

[0005] This embodiment aims to provide an electronic component module and a power supply device including the same that can improve the fastening structure between components, increase heat dissipation and power efficiency, and can be miniaturized.

Means for Solving the Problems

[0006] The electronic component module according to this embodiment includes: a first printed circuit board; a transformer disposed on the first printed circuit board and including a core and a first coil disposed within the core; a second printed circuit board disposed on the transformer; a busbar disposed outside the core and connecting both ends of the first coil; and a bracket disposed outside the busbar and connected to the core.

[0007] The first coil includes a first end and a second end, and the busbar may include a first busbar coupled to the first end and a second busbar coupled to the second end.

[0008] The first busbar includes a first upper end having a first coupling groove to which the first end is coupled; a first lower end to which the first printed circuit board is coupled; and a first connecting portion connecting the first upper end and the first lower end; and the second busbar includes a second upper end having a second coupling groove to which the second end is coupled; a second lower end to which the first printed circuit board is coupled; and a second connecting portion connecting the second upper end and the second lower end, the second connecting portion may have a region that is folded at least once or more.

[0009] The distance between the first upper end and the second upper end may be longer than the distance between the first lower end and the second lower end.

[0010] The bracket includes an upper portion positioned above the core; a lower portion positioned below the core; and a side portion positioned on the side of the core, the side portion of which may have a first through hole and a second through hole positioned so as to pass through the first upper end and the second upper end.

[0011] The side portion may have a third through hole and a fourth through hole that penetrate from the outer surface to the inner surface, corresponding to the arrangement areas of the first and second side portions.

[0012] A first protrusion is provided on the upper surface of the core, projecting upward from other areas, and a second protrusion is provided on the lower surface of the core, projecting downward from other areas. The upper and lower surfaces can be hooked to the first and second protrusions, respectively.

[0013] The lower end of the side portion may be recessed compared to other areas and may have a first guide groove to which the first lower end portion is connected, and a second guide groove to which the second lower end portion is connected.

[0014] The side portion may include at least one exposure hole that exposes the side of the core to the outside.

[0015] The power supply device according to this embodiment includes a housing; and an electronic component module disposed within the housing, the electronic component module including a first printed circuit board; a transformer disposed on the first printed circuit board and including a core and a first coil disposed within the core; a second printed circuit board disposed on the transformer; a busbar disposed outside the core and connecting both ends of the first coil; and a bracket disposed outside the busbar and connecting to the core. [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 a busbar, and the busbar can be compactly coupled to the outer surface of the transformer via a bracket.

[0017] Furthermore, since the inductor forms a coupling structure with multiple printed circuit boards via a single busbar located only at the bottom, it has the advantage of allowing for ample space within the housing.

[0018] In addition, by omitting the bus bar arranged in the horizontal direction of the core, a large area for arranging the core can be secured, and there is an advantage that the volume ratio of the in-core coil can be increased.

[0019] Also, it is possible to insulate between a plurality of printed circuit boards arranged adjacent to each other via a supporter, and there is an advantage that a wider component arrangement space can be secured on the main printed circuit board.

Brief Description of the Drawings

[0020] [Figure 1] Perspective view of the electronic component module inside the power supply device according to an embodiment of the present invention. [Figure 2] Plan view showing the upper surface of the electronic component module according to an embodiment of the present invention. [Figure 3] Exploded perspective view of the electronic component module according to an embodiment of the present invention. [Figure 4] Plan view showing the upper surface of the transformer and inductor according to an embodiment of the present invention. [Figure 5] Perspective view of the electronic component module excluding the first printed circuit board according to an embodiment of the present invention. [Figure 6] Perspective view of the transformer according to an embodiment of the present invention. [Figure 7] Exploded perspective view of the transformer, bus bar and bracket according to an embodiment of the present invention. [Figure 8] Plan view showing a part of the upper surface of the transformer according to an embodiment of the present invention. [Figure 9] Plan view showing the side surface of the inductor according to an embodiment of the present invention. [Figure 10] Perspective view showing the coupling form of the inductor and the bus bar according to an embodiment of the present invention. [Figure 11] Perspective view showing the coupling form of the fourth printed circuit board and the fifth printed circuit board on the first printed circuit board according to an embodiment of the present invention. [Figure 12] Perspective view of a part of FIG. 11 as seen from above. [Figure 13]An exploded perspective view of a first printed circuit board and support according to an embodiment of the present invention. [Modes for carrying out the invention]

[0021] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0022] However, the technical concept of the present invention is not limited to the embodiments described, and can be realized in various forms that are different from each other. Within the scope of the technical concept of the present invention, one or more of the components can be selectively combined and substituted between embodiments.

[0023] Furthermore, unless otherwise clearly defined, terms used in the embodiments of the present invention (including technical and scientific terms) can be interpreted as having a meaning generally understood by a person skilled in the art to which the present invention pertains. Terms that are commonly used, such as those defined in advance, can be interpreted in consideration of their meaning in the context of the relevant art.

[0024] Furthermore, the terminology used in the embodiments of the present invention is for illustrative purposes only and is not intended to limit the present invention.

[0025] In this specification, singular forms may also include plural forms unless otherwise specified in the text, and when it says "A and / or at least one of B and C," it may include one or more of all possible combinations of A, B, and C.

[0026] Furthermore, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, a, b, etc., can be used.

[0027] Such terminology is solely for the purpose of distinguishing one component from another, and is not limited by the nature, order, or sequence of the component in question.

[0028] Furthermore, when it is stated that one component is “linked,” “joined,” or “connected” to another component, this includes not only cases where the component is directly linked, joined, or connected to that other component, but also cases where it is “linked,” “joined,” or “connected” by yet another component between that component and the other component.

[0029] Furthermore, when it is stated that a component is formed or positioned "above" or "below" each component, "above" or "below" includes not only cases where two components are in direct contact with each other, but also cases where one or more additional components are formed or positioned between the two components. Also, when expressed as "above" or "below," it can include not only an upward direction but also a downward direction relative to one component.

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

[0031] Referring to Figures 1-8, the electronic component module 10 according to an embodiment of the present invention may be arranged inside a power supply device. The power supply device has an external shape formed by a housing, and the electronic component module 10 may be arranged inside the housing. A space for arranging the electronic component module 10 may be formed inside the housing.

[0032] The electronic component module 10 may include a first printed circuit board 20, a second printed circuit board 80, a third printed circuit board 70, a fourth printed circuit board 60, a fifth printed circuit board 30, a transformer 100, and an inductor 200, but it may be implemented with some of these components excluded, and no other additional components are excluded.

[0033] The first printed circuit board 20 may be named the main board. The second to fifth printed circuit boards 80, 70, 60, and 30 may be named sub-boards. 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 placed on the first printed circuit board 20. The second printed circuit board 80, the third printed circuit board 70, the fourth printed circuit board 60, the fifth printed circuit board 30, the transformer 100, and the inductor 200 may be placed on the first printed circuit board 20. The first printed circuit board 20 may be electrically connected to the second printed circuit board 80, the third printed circuit board 70, the fourth printed circuit board 60, the fifth printed circuit board 30, the transformer 100, and the inductor 200.

[0034] The first printed circuit board 20 may have a first hole 26 for connecting the third printed circuit board 70, a second hole 24 for connecting the fourth printed circuit board 60, and a third hole 22 for connecting the fifth printed circuit board 30. The first hole 26, the second hole 24, and the third hole 22 can be connected to the first printed circuit board 20 so as to penetrate from the top surface to the bottom surface, corresponding to the placement areas of the third printed circuit board 70, the fourth printed circuit board 60, and the fifth printed circuit board 30.

[0035] The second printed circuit board 80 may be positioned above the transformer 100 and the inductor 200. The second printed circuit board 80 can cover the top surfaces of the transformer 100 and the inductor 200. The first printed circuit board 20 and the second printed circuit board 80 may be positioned opposite each other with respect to the transformer 100 and the inductor 200. The cross-sectional area of ​​the second printed circuit board 80 can correspond to the area where the transformer 100 and the inductor 200 are positioned.

[0036] The second printed circuit board 80 may include a fourth hole 82 and a fifth hole 81. The fourth hole 82 may be positioned to face the third printed circuit board 70 in the vertical direction and may be formed to penetrate from the top surface to the bottom surface of the second printed circuit board 80. The fifth hole 81 may be positioned to face the fourth printed circuit board 60 in the vertical direction and may be formed to penetrate from the top surface to the bottom surface of the second printed circuit board 80.

[0037] The third printed circuit board 70 may be positioned to cover one side of the transformer 100 and the inductor 200. The third printed circuit board 70 may be positioned perpendicular to the first printed circuit board 20 and the second printed circuit board 80.

[0038] The third printed circuit board 70 may be electrically connected to the first printed circuit board 20 and the second printed circuit board 80. A first coupling portion 72 may be positioned at the lower end of the third printed circuit board 70 to connect to the first hole 26. The first coupling portion 72 may be formed to protrude downward from other areas. A second coupling portion 74 may be positioned at the upper end of the third printed circuit board 70 to connect to the fourth hole 82. The second coupling portion 74 may be formed to protrude upward from other areas. Circuit patterns may be formed in the first coupling portion 72 and the first hole 26 to electrically connect the first printed circuit board 20 and the third printed circuit board 70. Circuit patterns may be formed in the second coupling portion 74 and the fourth hole 82 to electrically connect the second printed circuit board 80 and the third printed circuit board 70.

[0039] The fourth printed circuit board 60 may be positioned to cover the other side of the transformer 100 and the inductor 200. The other side can face the one side. The third printed circuit board 70 and the fourth printed circuit board 60 may be positioned facing each other with respect to the transformer 100 and the inductor 200. The fourth printed circuit board 60 may be positioned perpendicular to the first printed circuit board 20 and the second printed circuit board 80. The fourth printed circuit board 60 may be positioned parallel to the third printed circuit board 70.

[0040] The fourth printed circuit board 60 may be electrically connected to the first printed circuit board 20 and the second printed circuit board 80. A third coupling portion 62 may be positioned at the lower end of the fourth printed circuit board 60 to connect to the second hole 24. The third coupling portion 62 may be formed to protrude downward from other areas. A fourth coupling portion 64 may be positioned at the upper end of the fourth printed circuit board 60 to connect to the fifth hole 81. The fourth coupling portion 64 may be positioned to protrude upward from other areas. Circuit patterns may be formed in the third coupling portion 62 and the second hole 24 to electrically connect the first printed circuit board 20 and the fourth printed circuit board 60. Circuit patterns may be formed in the fourth coupling portion 64 and the fifth hole 81 to electrically connect the second printed circuit board 80 and the fourth printed circuit board 60.

[0041] The fifth printed circuit board 30 may be placed on the first printed circuit board 20. The fifth printed circuit board 30 may be placed perpendicular to the first printed circuit board 20. The fifth printed circuit board 30 may be placed at the edge of the first printed circuit board 20. The fifth printed circuit board 30 may be placed at a predetermined distance from the fourth printed circuit board 60. A fifth coupling portion 32 may be formed at the lower end of the fifth printed circuit board 30, protruding downward from other areas. The fifth coupling portion 32 can be coupled to the third hole 22. Circuit patterns may be formed in the fifth coupling portion 32 and the third hole 22 to electrically connect the fifth printed circuit board 30 and the first printed circuit board 20. The coupling structure of the fourth printed circuit board 60 and the fifth printed circuit board 30 on the first printed circuit board 20 will be described later.

[0042] The transformer 100 is for voltage conversion within the power supply device and may be positioned between the first printed circuit board 20 and the second printed circuit board 80. The transformer 100 may be electrically connected to the first printed circuit board 20 and the second printed circuit board 80. The transformer 100 can have its lower surface facing the upper surface of the first printed circuit board 20 and its upper surface facing the lower surface of the second printed circuit board 80.

[0043] The transformer 100 may include a core 110, a first coil 120, and a second coil 130.

[0044] The core 110 may be a magnetic material. The top and bottom surfaces of the core 110 may be open. The core 110 may be formed by joining a plurality of segmented cores. For example, the plurality of segmented cores can be interconnected in the direction (first direction) in which the third printed circuit board 70 and the fourth printed circuit board 60 face each other. Legs (not shown) may be arranged on the inner surfaces of the plurality of segmented cores facing each other so as to connect or wind the first coil 120 and the second coil 130. The segmented core may be an E-type core. The legs are arranged on each of the plurality of segmented cores and can have a single axial shape through interconnection. The first coil 120 and the second coil 130 may enclose the legs or be arranged along the legs.

[0045] The upper and lower surfaces of the core 110 may have protrusions 112 and 114 that project upward or downward, respectively, compared to other areas. Multiple protrusions 114 may be provided on the upper surface of the core 110 and arranged to face each other around an open area on the upper surface of the core 110. Multiple protrusions 112 may be provided on the lower surface of the core 110 and arranged to face each other around an open area on the lower surface of the core 110. The core 110 may have a side portion 111 to which a bracket 150, described later, is connected. The protrusions 112 and 114 may be provided on the upper and lower parts of the side portion 111, respectively.

[0046] The first coil 120 may be located inside the core 110. The first coil 120 may be wound around the leg portion. 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 located outside the core 110. The region between the first end 122 and the second end 124 may be wound around the leg portion. The first coil 120 may be a primary coil.

[0047] The second coil 130 may be positioned inside the core 110. The second coil 130 can be coupled to the leg portion. The second coil 130 may be formed in a plate shape. The second coil 130 may be provided in multiple units and arranged to be spaced apart from each other. For example, four second coils 130 may be provided and arranged to be spaced apart from each other along the first direction. The second coil 130 can divide the area where the first coil 120 is positioned into multiple areas. The second coil 130 may have upwardly projecting third end portions 132 and fourth end portions 133 at both ends. The third end portions 132 and fourth end portions 133 may be named terminal portions.

[0048] The third end 132 and the fourth end 133 can be coupled to the second printed circuit board 80. The second printed circuit board 80 may have coupling grooves 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 multiple second coils 130 may be arranged so that at least a portion of them do not overlap in the first direction. The second coils 130 may be secondary coils.

[0049] In this embodiment, the first coil 120 is described as the primary coil and the second coil 130 as the secondary coil, but the embodiment is not limited to this, and the second coil 130 may be the primary coil and the first coil 120 may be the secondary coil.

[0050] On the other hand, an insulating sheet (not shown) may be placed between the side surface of the second coil 130 and the first coil 120 for insulation.

[0051] The first coil 120 can be coupled to busbars 180 and 190. One end of each busbar 180 and 190 can be coupled to the first coil 120, and the other end can be coupled to the first printed circuit board 20. The other ends of the busbars 180 and 190 may be soldered onto the first printed circuit board 20. The lower surfaces of the other ends of the busbars 180 and 190 can be in contact with the upper surface of the first printed circuit board 20. Alternatively, holes (not shown) can be formed on the first printed circuit board 20 so that the other ends of the busbars 180 and 190 pass through them, and the other ends of the busbars 180 and 190 can be coupled so that they pass through the holes.

[0052] The busbars 180 and 190 may be positioned on the side portion 111 of the core 110. The busbars 180 and 190 may be positioned to cover at least a portion of the side portion 111. The busbars 180 and 190 can be spaced a predetermined distance apart from the side portion 111. An insulating sheet or insulating tape may be placed between the busbars 180 and 190 and the side portion 111 for insulation.

[0053] The busbars 180 and 190 may include a first busbar 180 to which the first end 122 is connected, and a second busbar 190 to which the second end 124 is connected.

[0054] The first busbar 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 positioned parallel to the first printed circuit board 20 or the second printed circuit board 80. A first coupling groove 181 may be formed in the first upper end 182 so as to connect to 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 can be connected so as to penetrate the first coupling groove 181. The first end 122 may be soldered or fused into the first coupling groove 181.

[0055] The first lower end portion 186 can be coupled to the first printed circuit board 20. The first lower end portion 186 can form the lower end of the first busbar 180. The first lower end portion 186 may be arranged parallel to the first printed circuit board 20, the second printed circuit board 80, and the first upper end portion 182. The first lower end portion 186 may be arranged to overlap the first upper end portion 182 in the vertical direction.

[0056] The first connecting portion 184 may be arranged to connect the first upper end portion 182 and the first lower end portion 186. The first connecting portion 184 may be arranged perpendicularly to the first printed circuit board 20 or the second printed circuit board 80.

[0057] The first busbar 180 is made of a metal material, and the first upper end 182, the first lower end 186, and the first connecting portion 184 may be formed integrally.

[0058] The second busbar 190 may include a second upper end 192, a second lower end 198, and second connecting portions 194 and 196. The second upper end 192 may be positioned parallel to the first printed circuit board 20 or the second printed circuit board 80. A second coupling groove 191 may be formed in the second upper end 192 so as to accommodate 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 can be coupled so as to penetrate the second coupling groove 191. The second end 124 may be soldered or fused into the second coupling groove 191.

[0059] The second lower end portion 198 can be coupled to the first printed circuit board 20. The second lower end portion 198 can form the lower end of the second busbar 190. The second lower end portion 198 may be positioned parallel to the first printed circuit board 20, the second printed circuit board 80, and the second upper end portion 192. The second lower end portion 198 may be positioned to overlap the second upper end portion 192 in the vertical direction.

[0060] The second connecting portion may have a region that has been folded at least once. The second connecting portion may include a second-first connecting portion 194 and a second-second connecting portion 196.

[0061] The second-first connecting portion 194 may be bent horizontally from the lower end of the second upper end portion 192, with its lower end connected to the upper end of the second-second connecting portion 196. One end of the second-first connecting portion 194 is connected to the lower end of the second upper end portion 192, and the other end of the second-first connecting portion 194 can extend horizontally to approach the first busbar 180. This allows both ends 122 and 124 of the first coil 120 to be separated by a predetermined distance.

[0062] The second-second connecting portion 196 may be positioned to connect the second-first connecting portion 194 and the second lower end portion 198. The second-second connecting portion 196 may be positioned perpendicular to the first printed circuit board 20 or the second printed circuit board 80. The second-second connecting portion 196 may be positioned perpendicular to the second upper end portion 192 and the second lower end portion 198. The second-second connecting portion 196 may be positioned perpendicular to the second-first connecting portion 194. The second-second connecting portion 196 can be positioned a predetermined distance away from the first connecting portion 184.

[0063] The separation distance between the first upper end portion 182 and the second upper end portion 192 may be longer than the separation distance between the first connecting portion 184 and the second-2 connecting portion 196. This is due to the arrangement structure of the second connecting portion 192 described above, and the shape of the busbars 180 and 190 ensures a sufficient separation distance between both ends of the first coil 120 in the coupling region with the first coil 120, and on the second printed circuit board 80, it has a relatively small arrangement area, thereby allowing for a wider space to arrange components on the second printed circuit board 80.

[0064] A bracket 150 may be provided on one side of the transformer 100 to support the busbars 180 and 190 on the outer surface of the core 110. The busbars 180 and 190 can be firmly fixed to the outside of the side portion 111 of the core 110 via the bracket 150. The bracket 150 may be made of plastic.

[0065] The bracket 150 may include an upper portion 152, a lower portion 155, and a side portion 160.

[0066] The upper portion 152 can be bent inward from the upper end of the side portion 160 and coupled to the core 110. The upper portion 152 may be provided in multiple units and arranged to be spaced apart from each other. The upper portion 152 and the lower portion 155 may be positioned in the four corner regions of the side portion 160, respectively. The lower surface of the upper portion 152 can contact the upper surface of the core 110. The lower surface of the upper portion 152 can contact the upper surface of the protruding portion 114. A rib 151 projecting downward may be formed on the lower surface of the upper portion 152. The rib 151 may be positioned at the lower end of the upper portion 152 that extends outward. The side surface of the rib 151 can contact the side surface of the protruding portion 114. That is, the upper portion 152 can be hooked to the core 110 via the rib 151.

[0067] The lower portion 155 can be bent inward from the lower end of the side portion 160 and coupled to the core 110. The lower portion 155 may be provided in multiple portions and arranged to be spaced apart from each other. The upper surface of the lower portion 155 can contact the lower surface of the core 110. The upper surface of the lower portion 155 can contact the lower surface of the protruding portion 112. A rib 156 projecting upward may be formed on the upper surface of the lower portion 155. The rib 156 may be positioned at the upper end of the lower portion 155 that extends outward. The side surface of the rib 156 can contact the side surface of the protruding portion 112. The lower portion 155 can be hook-coupled to the core 110 via the rib 156.

[0068] In summary, the upper portion 152 and the lower portion 155 cover the upper and lower surfaces of the core 110 and can be hooked onto the protrusions 112 and 114.

[0069] The side 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 portion 160.

[0070] The first through-hole 162 is formed in a region facing the first upper end portion 182, and the first upper end portion 182 can pass through it. The first upper end portion 182 may pass through the first through-hole 162 and a portion of it may be positioned outside the bracket 150. The cross-sectional area of ​​the first through-hole 162 may be formed to 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 formed to be longer than the vertical thickness of the first upper end portion 182. This ensures sufficient free space for the first busbar 180.

[0071] The second through-hole 164 is formed in a region facing the second upper end portion 192, and the second upper end portion 192 can pass through it. The second upper end portion 192 may pass through the second through-hole 164 and a portion of it may be positioned outside the bracket 150. The cross-sectional area of ​​the second through-hole 164 may be formed to be larger than the cross-sectional area of ​​the second upper end portion 192. The vertical length of the second through-hole 164 may be formed to be longer than the vertical thickness of the second upper end portion 192. This ensures sufficient free space for the second busbar 190.

[0072] A first separation groove 161 may be provided between the area where the first through hole 162 is formed and the area where the second through hole 164 is formed at the upper end of the side portion 160.

[0073] The third through-hole 166 is formed in a region facing the first connecting portion 184, allowing the first connecting portion 184 to be exposed to the outside. The third through-hole 166 may be located below the first through-hole 162. At least a portion of the first connecting portion 184 can be exposed to the outside of the bracket 150 through the third through-hole 166.

[0074] The fourth through-hole 168 is formed in a region facing the second-first connecting portion 194 and the second-second connecting portion 196, allowing the second-first connecting portion 194 and the second-second connecting portion 196 to be exposed to the outside. At least a portion of the fourth through-hole 168 may be located below the second through-hole 164. At least a portion of the second-first connecting portion 194 and the second-second connecting portion 196 can be exposed to the outside of the bracket 150 through the fourth through-hole 168.

[0075] A first guide groove 172 and a second guide groove 174 may be provided at the lower end of the side portion 160, recessed above other areas. The first lower end portion 186 can be connected to the first guide groove 172. At least a portion of the first lower end portion 186 can protrude outside the bracket 150 by passing 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.

[0076] The second lower end portion 198 can be coupled to the second guide groove 174. At least a portion of the second lower end portion 198 can protrude outside the bracket 150 by passing through the second guide groove 174. 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.

[0077] In accordance with the arrangement structure of the busbars 180 and 190, the separation distance between the first through hole 162 and the second through hole 164 may be formed to be longer than the separation distance between the first guide groove 172 and the second guide groove 174.

[0078] The side portion 160 may have at least one hole formed therein to expose the side of the core 110. For example, the side portion 160 may have a first exposure hole 178 and a second exposure hole 176. The second exposure hole 176 may be located below the first exposure hole 178. At least a portion of the side portion 111 of the core 110 can be exposed to the outside through the first exposure hole 178 and the second exposure hole 176. This can improve the heat dissipation efficiency of the transformer 100.

[0079] The above-described structure has the advantage that the first coil and the first printed circuit board can be easily connected via a busbar, and the busbar can be compactly connected to the outer surface of the transformer via a bracket.

[0080] Figure 9 is a plan view illustrating the side view of an inductor according to an embodiment of the present invention, and Figure 10 is a perspective view illustrating the coupling configuration of an inductor and a busbar according to an embodiment of the present invention.

[0081] Referring to Figures 3, 5, 9, and 10, the inductor 200 may be located on one side of the transformer 100. The inductor 200 is for obtaining the inductance within the power supply device and may be located between the first printed circuit board 20 and the second printed circuit board 80. The inductor 200 may be electrically connected to the first printed circuit board 20 and the second printed circuit board 80. The inductor 200 can have its lower surface facing the upper surface of the first printed circuit board 20 and its upper surface facing the lower surface of the second printed circuit board 80. The inductor 200 may be located at a predetermined horizontal distance from the transformer 100.

[0082] The inductor 200 may include a core 210 and a coil 240.

[0083] The core 210 has the characteristics of a magnetic circuit and can act as a path for magnetic flux. The core 210 may be formed by combining a plurality of segmented cores. Each segmented core may consist of an E-type or I-type core. If the segmented core is an E-type core, it may be arranged in a symmetrical shape. The core 210 may contain a magnetic material. Legs may be formed on the inner surface of the segmented core so as to which the coil 240 is coupled. The legs are arranged on each of the plurality of segmented cores and can have a single axial shape through mutual coupling. The coil 240 may enclose the legs or be arranged along the legs.

[0084] The coil 240 may be made of a conductive metal. The coil 240 may be in the form of a wound metal wire or may be formed in the shape of a plate. Multiple coils 240 may be provided and arranged to be spaced apart from each other in a second direction perpendicular to the first direction. An insulating plate may be placed between the multiple coils 240 for insulation, or the surface of adjacent coils 240 may be coated with an insulating material.

[0085] The winding direction of the coil 240 inside the inductor 200 may be perpendicular to the winding direction of the first coil 120 inside the transformer 100.

[0086] Each coil 240 may include terminals 220, 230 that are electrically connected to the first printed circuit board 20 and the second printed circuit board 80. The terminals 220, 230 may be formed by the ends of metal wires. The terminals 220, 230 may include a first terminal 220 that protrudes above the core 210 and a second terminal 230 that protrudes below the core 210. The first terminal 220 and the second terminal 230 may be positioned perpendicular to the first printed circuit board 20 or the second printed circuit board 80. The first terminal 220 and the second terminal 230 may be positioned symmetrically with respect to the core 210. A coupling groove 84 may be formed on the second printed circuit board 80 to which the first terminal 220 is coupled. This allows the coil 240 to be electrically connected to the second printed circuit board 80.

[0087] The second terminal 230 can be coupled to the busbar 250. The coil 240 may be electrically connected to the first printed circuit board 20 through the busbar 250.

[0088] The busbar 250 may include upper ends 252 and 254 and a lower end 256 that is bent downward at 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 formed integrally.

[0089] The upper portions 252 and 254 may include a first upper portion 252 and a second upper portion 254. The upper portions 252 and 254 may have a semicircular cross-section. The first upper portion 252 and the second upper portion 254 may have at least a portion of mutually parallel regions. The first upper portion 252 and the second upper portion 254 may have regions separated horizontally. At least a portion of the second upper portion 254 may have a region that does not overlap the core 200 in the vertical direction.

[0090] A coupling hole may be formed in the first upper end portion 252 so as to connect to the second terminal 230. Multiple coupling holes may be arranged corresponding to the number of coils 240 and second terminals 230. The second terminal 230 may be inserted into the coupling hole. By connecting the second terminal 230, the busbar 250 can be electrically connected to the coil 240.

[0091] The lower end portion 256 may be bent downward from the end of the second upper end portion 254 and positioned perpendicular to the upper ends 252 and 254. The lower end portion 256 may protrude downward from the lower surface of the upper ends 252 and 254. The lower end portion 256 can be coupled to the coupling hole inside the first printed circuit board 20. This allows the busbar 250 to be electrically connected to the first printed circuit board 20.

[0092] According to the above-described structure, the inductor 200 forms a coupling structure with multiple printed circuit boards 20, 80 via a single busbar 250 located only at the bottom, which has the advantage of allowing for a large amount of space inside the housing.

[0093] Furthermore, by omitting the busbars arranged horizontally in the core 210, a larger area for the core 210 can be secured, which has the advantage of increasing the volume ratio of the coils inside the core 210.

[0094] Furthermore, it has the advantage of being able to relatively reduce the length of the busbars for electrical connections, thereby improving power efficiency.

[0095] Figure 11 is a perspective view illustrating the configuration in which a fourth printed circuit board and a fifth printed circuit board are attached to a first printed circuit board according to an embodiment of the present invention; Figure 12 is a perspective view of a part of Figure 11 viewed from above; and Figure 13 is an exploded perspective view of the first printed circuit board and support according to an embodiment of the present invention.

[0096] Referring to Figures 1-3 and 11-13, 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 and second functions are electrical, circuit functions, and 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 a first magnitude in the first region A.

[0097] Therefore, the fifth printed circuit board 30 located in the first region A can operate in the first function, and the fourth printed circuit board 60 located in the second region B can operate in the second function.

[0098] With reference to Figure 2, the first region A and the second region B may be demarcated by a virtual line L. Since they have different electrical functions, a shield (not shown) may be placed on the virtual line L to prevent noise generation between the first region A and the second region B. The shield may be formed in the shape of a metal plate and can demarcate the first region A and the second region B from each other. The shield may be positioned perpendicular to the first printed circuit board 20.

[0099] To insulate the fourth printed circuit board 60 and the fifth printed circuit board 30 from each other, which are arranged to be coupled to or adjacent to the shield portion, the electronic component module may include a supporter 300. The supporter 300 may be coupled to the first printed circuit board 20 and positioned between the fourth printed circuit board 60 and the fifth printed circuit board 30. The supporter 300 may be made of plastic or resin material.

[0100] In detail, the supporter 300 may include a first body 310 and a second body 350.

[0101] The first body 310 may be positioned between the fourth printed circuit board 60 and the fifth printed circuit board 30. The first body 310 may be formed to have a vertical length corresponding to or longer than the vertical length of the fourth printed circuit board 60 or the fifth 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.

[0102] 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. The first plate portion 312 may be arranged so that one side faces the side of the fourth printed circuit board 60 and the other side faces the side of the fifth printed circuit board 30. Both sides of the first plate portion 312 may be arranged to be in contact with or separated from the side of the fourth printed circuit board 60 and the side of the fifth printed circuit board 30, respectively.

[0103] A guide rib 313 projecting outward may be formed on one side of the first plate portion 312 facing the fourth printed circuit board 60. The guide rib 313 may be positioned adjacent to the upper end of the first plate portion 312. The outer surface of the guide rib 313 may be positioned facing the inner surface of the fourth printed circuit board 60. The outer surface of the guide rib 313 can contact the inner surface of the fourth printed circuit board 60. The guide rib 313 may form a guide groove 318 inside the guide rib 313, into which the side surface of the fourth printed circuit board 60 is joined. As a result, the inner and outer surfaces of the fourth printed circuit board 60 may be supported by the inner surface of the housing and the guide rib 313.

[0104] The second plate portion 314 is positioned outside the first plate portion 312 and can support the outer surface of the fifth printed circuit board 30. The second plate portion 314 can also be understood as protruding from the other side of the first plate portion 312 facing the fifth printed circuit board 30. The second plate portion 314 can contact the outer surface of the fifth printed circuit board 30. The outer surface of the fifth printed circuit board 30 may be supported by the inner surface of the second plate portion 314, and the side of the fifth printed circuit board 30 may be supported by the other side of the first plate portion 312. The length of the protrusion of the first plate portion 312 from the inner surface of the second plate portion 314 may be formed to be longer than the thickness of the fourth printed circuit board 60 or the fifth printed circuit board 30.

[0105] The second body 350 may be positioned below the first body 310. The second body 350 can form the lower end of the supporter 300. The second body 350 can be coupled to the first printed circuit board 20. The first printed circuit board 20 may have a portion of its side cut inward and include a coupling groove 29 for coupling the second body 350. The coupling groove 29 may be positioned to overlap a portion of the arrangement area of ​​the virtual line L and the shield portion. The coupling groove 29 may be in the shape of a hole that penetrates from the top surface to the bottom surface of the first printed circuit board 20.

[0106] The second main body 350 may include an upper plate 320, a lower plate 340, and a side plate 330.

[0107] The top plate 320 may be placed on the first printed circuit board 20. The upper surface of the top plate 320 can support the lower end of the first body 310. A portion of the upper surface of the top plate 320 can contact the lower surface of the fourth printed circuit board 60. The coupling groove 29 may be formed such that the length of the second body 350, which is placed in the second region B with respect to the side plate 330, is longer than the length of the second body 350, which is placed in the first region A.

[0108] First ribs 322 and 324 projecting downward may be arranged on the lower surface of the upper plate 320. The lower surfaces of the first ribs 322 and 324 can contact the upper surface of the first printed circuit board 20. A portion of the lower surface of the upper plate 320 can be separated from the upper surface of the first printed circuit board 20 by a predetermined distance via the first ribs 322 and 324. Multiple first ribs 322 and 324 may be arranged at both ends of the lower surface of the upper plate 320.

[0109] The lower plate 340 may be positioned below the first printed circuit board 20. The upper surface of the lower plate 340 may be positioned facing the lower surface of the first printed circuit board 20. The lower plate 340 may be positioned facing the upper plate 320.

[0110] Second ribs 342 and 344 projecting upward may be arranged on the upper surface of the lower plate 340. The upper surfaces of the second ribs 342 and 344 can contact the lower surface of the first printed circuit board 20. A portion of the upper surface of the lower plate 340 can be separated from the lower surface of the first printed circuit board 20 by a predetermined distance via the second ribs 342 and 344. Multiple second ribs 342 and 344 may be arranged at 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 with respect to each other.

[0111] The vertical separation distance between the first ribs 322, 324 and the second ribs 342, 344 can correspond to the vertical thickness of the first printed circuit board 20.

[0112] The side plate 330 may be positioned to connect the upper plate 320 and the lower plate 340. The side plate 330 may be positioned perpendicular to the upper plate 320 and the lower plate 340. The side plate 330 may be positioned to penetrate 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 can form the same plane. The second body 350 can be coupled to the first printed circuit board 20 by the sliding movement of the side plate 330 within the coupling groove 29. To facilitate sliding movement, the upper surfaces of the ribs 322, 324, 342, and 344 of the upper plate 320 and the lower plate 340 may have inclined surfaces formed on them, at least in part, that are at a different height from other areas.

[0113] According to the structure described above, it is possible to insulate multiple printed circuit boards that are arranged adjacent to each other via supporters, which has the advantage of providing a larger space for component placement on the main printed circuit board.

[0114] Although all components constituting the embodiments of the present invention have been described above as operating as a single unit or in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all components can also operate in selective combination of one or more units. Furthermore, terms such as "includes," "constitutes," or "has," as described above, should be interpreted as meaning that the component in question may be inherent, and not as excluding other components, but as potentially including other components, unless otherwise stated. All terms, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms, such as those previously defined, should be interpreted as having their meaning in the context of the relevant art, and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in the present invention.

[0115] The above description is merely illustrative of the technical concept of the present invention, and any person with ordinary skill in the art to which the present invention pertains can make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are for illustrative purposes only, not to limit the technical concept of the present invention, and these embodiments do not limit the scope of the technical concept of the present invention. The scope of protection of the present invention should be interpreted by the following claims, and all technical concepts within an equivalent scope should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. First printed circuit board; A transformer disposed on the first printed circuit board and including a first core and a first coil disposed within the first core; An inductor disposed on the first printed circuit board, including a second core and a second coil disposed within the second core; A second printed circuit board placed on the transformer; A metal plate positioned perpendicular to the first printed circuit board, demarcating the areas of the inductor and the transformer; A busbar located outside the first core, connecting both ends of the first coil; and A bracket positioned outside the busbar and coupled to the first core; The second coil includes a first terminal protruding above the second core and a second terminal protruding below the second core. The first terminal is connected to the second printed circuit board. An electronic component module characterized in that the second terminal is coupled to the first printed circuit board.

2. The first coil includes a first end and a second end, The electronic component module according to claim 1, characterized in that the busbar includes a first busbar connected to the first end and a second busbar connected to the second end.

3. The first busbar is, A first upper end portion including a first coupling groove to which the first end portion is joined; A first lower end portion that is coupled to the first printed circuit board; and It includes a first connecting portion that connects the first upper end and the first lower end, The second busbar is, A second upper end portion including a second coupling groove to which the second end portion is joined; A second lower end portion that is coupled to the first printed circuit board; and Including a second connecting portion that connects the second upper end and the second lower end, The electronic component module according to claim 2, characterized in that the second connecting portion has a region that has been folded at least once.

4. The electronic component module according to claim 3, characterized in that the separation distance between the first upper end and the second upper end is longer than the separation distance between the first lower end and the second lower end.

5. The aforementioned bracket is The upper surface portion located on the upper part of the first core; The lower surface portion located below the first core; and Including a side portion disposed on the side of the first core, The electronic component module according to claim 3, characterized in that a first through-hole and a second through-hole are arranged in the side portion such that the first upper end and the second upper end pass through each other.

6. The electronic component module according to claim 5, characterized in that a third through-hole and a fourth through-hole are arranged on the side portion, corresponding to the arrangement areas of the first and second side portions, and penetrating from the outer surface to the inner surface.

7. A first protrusion is provided on the upper surface of the first core, which protrudes upward from other areas. A second protrusion is provided on the lower surface of the first core, which protrudes downward from other areas. The electronic component module according to claim 5, characterized in that the upper portion and the lower portion are hook-connected to the first protrusion and the second protrusion, respectively.

8. The electronic component module according to claim 5, characterized in that the lower end of the side portion is recessed compared to other areas and has a first guide groove to which the first lower end portion is connected, and a second guide groove to which the second lower end portion is connected.

9. The electronic component module according to claim 5, characterized in that the side portion includes at least one exposure hole that exposes the side of the first core to the outside.

10. Housing; and Includes an electronic component module disposed within the housing, The aforementioned electronic component module is First printed circuit board; A transformer disposed on the first printed circuit board and including a first core and a first coil disposed within the first core; An inductor disposed on the first printed circuit board, including a second core and a second coil disposed within the second core; A second printed circuit board placed on the transformer; A metal plate positioned perpendicular to the first printed circuit board, demarcating the areas of the inductor and the transformer; A busbar located outside the first core, connecting both ends of the first coil; and The busbar includes a bracket that is positioned outside the busbar and coupled to the first core, The second coil includes a first terminal protruding above the second core and a second terminal protruding below the second core. The first terminal is connected to the second printed circuit board. A power supply device characterized in that the second terminal is coupled to the first printed circuit board.

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