Converter

Abstract

The converter includes: a housing; a heat generating component arranged inside the housing; and a heat dissipation module arranged on the heat generating component, wherein the heat dissipation module includes a heat dissipation member, an inlet arranged adjacently on one side of the heat dissipation member, and an outlet arranged adjacently on the other side of the heat dissipation member, the heat dissipation member includes a plurality of heat dissipation fins and a plurality of flow paths arranged in a direction from the inlet toward the outlet, and the plurality of flow paths are arranged to overlap with the heat dissipation member in a vertical direction. A distance between two heat dissipation fins arranged on two outermost portions of the other side of the heat dissipation member among the plurality of heat dissipation fins is different from a distance between two heat dissipation fins arranged on two outermost portions of a central region between the inlet and the outlet of the heat dissipation member.

Description

Technical Field

[0001] This embodiment relates to a converter. Background Art

[0002] The following description provides background information about the present embodiment and does not describe the prior art.

[0003] Engine electrical equipment (starting equipment, ignition equipment, charging equipment) and lighting equipment are generally used as electrical equipment of automobiles, but in recent years, as more and more electronic control is performed on vehicles, most systems including chassis electrical equipment are becoming electrified.

[0004] Various electrical devices installed in the car (such as lights, audio, heater, air conditioner, etc.) are powered by the battery when parked and by the generator when driving, and at this time, the power generation of the 14V power system is used as the normal power supply voltage.

[0005] Recently, with the development of the information technology industry, various new technologies aimed at increasing the convenience of automobiles (motor power steering, Internet, etc.) are being applied to vehicles, and it is expected that new technologies that can maximize the use of current automobile systems will continue to be developed in the future.

[0006] Regardless of whether it is a soft or hard type, hybrid electric vehicles (HEVs) are equipped with a DC-DC converter for supplying power to electrical loads (12 V). In addition, the DC-DC converter used as a generator (alternator) of a general gasoline vehicle supplies 12 V voltage to the electrical load by reducing the high voltage of the main battery (usually a high-voltage battery of 144 V or higher).

[0007] A DC-DC converter refers to an electronic circuit device that converts DC power of a certain voltage into DC power of another voltage, and is used in various fields such as televisions and automotive electronics.

[0008] A plurality of electrical components that generate heat by driving are arranged inside the converter. Generally, heat dissipation of the converter may be constituted by a structure in which one or more heat dissipation fins are arranged on an outer surface of a housing that forms an outer shape. That is, it is a structure in which heat generated from the electrical components is conducted to the outside through the housing, and the heat is dissipated to the outside through the heat dissipation fins.

[0009] However, considering that the amount of heat generated by each electronic component is different from one another and a plurality of electronic components are arranged in a narrow space of the converter, there is a problem that heat dissipation of the converter cannot be sufficiently accomplished using only heat dissipation fins. Summary of the invention

[0010]

Technical Topics

[0011] The purpose of this embodiment is to provide a converter capable of improving heat dissipation efficiency by improving the housing structure.

[0012]

Technical Solution

[0013] In one embodiment, the converter includes: a shell; a heat-generating component arranged inside the shell; and a heat dissipation module arranged on the heat-generating component, wherein the heat dissipation module includes a heat dissipation component, an inlet arranged adjacently on one side of the heat dissipation component, and an outlet arranged adjacently on the other side of the heat dissipation component, wherein the heat dissipation component includes a plurality of heat dissipation fins and a plurality of flow paths arranged in a direction from the inlet toward the outlet, wherein the plurality of flow paths are arranged to overlap with the heat dissipation component in a vertical direction, and wherein a distance between two heat dissipation fins on two outermost sides of the plurality of heat dissipation fins arranged on the other side of the heat dissipation component is different from a distance between two heat dissipation fins on the outermost sides of the central area between the inlet and the outlet of the heat dissipation component.

[0014] The number of flow paths at the other side of the heat dissipation member may be different from the number of flow paths in the central region of the heat dissipation member.

[0015] The number of flow paths at the other side of the heat dissipation member may be smaller than the number of flow paths in the central region of the heat dissipation member.

[0016] The flow path may be formed between two heat dissipation fins adjacent to each other.

[0017] A length between two heat dissipation fins arranged on two outermost sides of one side of the heat dissipation member among the plurality of heat dissipation fins may be equal to or greater than a length between two heat dissipation fins arranged at two outermost sides of the other side of the heat dissipation member.

[0018] The number of flow paths at the other side of the heat dissipation member may be equal to or smaller than the number of flow paths at the one side.

[0019] The heat dissipation module may include a fan disposed adjacent to the inlet.

[0020] The heat dissipation module may include a cover disposed on the plurality of heat dissipation fins, and the cover may include an inlet and an outlet disposed adjacent to the fan.

[0021] The heat dissipation module includes a plurality of heat dissipation fins and a cover disposed on the fan, and the cover may include an opening overlapping the fan in a vertical direction.

[0022] In another embodiment, the converter includes: a shell; a heat-generating component arranged inside the shell; and a heat dissipation module arranged on the shell, wherein the heat dissipation module includes a heat dissipation component, an inlet arranged adjacent to one side of the heat dissipation component, and an outlet arranged adjacent to the other side of the heat dissipation component, and wherein the heat dissipation component includes a plurality of heat dissipation fins and a plurality of flow paths arranged in a direction from the inlet to the outlet, the plurality of flow paths are arranged to overlap with the heat-generating component in a vertical direction, and a size of the inlet is larger than a size of the outlet.

[0023]

Beneficial effects

[0024] According to the present invention, since the heat generated by the electronic components can be dissipated by the fan which discharges air to the heat dissipation fins and the area between the heat dissipation fins, there is an advantage that the heat dissipation efficiency can be improved.

[0025] Furthermore, since the air flows in the duct over the shortest distance, there is an advantage that the wind direction and wind speed of the air for heat dissipation can be effectively controlled.

[0026] Furthermore, there is an advantage that the air discharged from the fan through the air guide can be more easily guided to the duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective view of a converter according to a first embodiment of the present invention.

[0028] Figure 2 is a plan view showing one side surface of the converter according to the first embodiment of the present invention.

[0029] Figure 3 is a plan view showing the upper surface of the converter according to the first embodiment of the present invention.

[0030] Figure 4 is an exploded perspective view of a converter according to an embodiment of the present invention.

[0031] Figure 5 yes Figure 3 A perspective view of the converter is shown without the cover.

[0032] Figure 6 is a perspective view showing a portion of an upper surface of a housing according to a first embodiment of the present invention.

[0033] Figure 7 is a perspective view showing an air guide according to a first embodiment of the present invention.

[0034] Figure 8 1 is a view for describing the flow of air in a duct according to the first embodiment of the present invention.

[0035] Figure 9a is a sectional view of an air guide according to a first embodiment of the present invention.

[0036] Figure 9b It shows Figure 9a A cross-sectional view of a modified embodiment of FIG.

[0037] Fig.10 is a perspective view showing a state in which an air pipe is coupled to a discharge unit according to a first embodiment of the present invention.

[0038] Fig.11 is a perspective view of a converter according to a second embodiment of the present invention.

[0039] Fig.12 is a plan view showing an upper surface of a converter according to a second embodiment of the present invention.

[0040] Fig.13 is a top view showing a side surface of a converter according to a second embodiment of the present invention.

[0041] Fig.14 is an exploded perspective view of a converter according to an embodiment of the present invention.

[0042] Fig.15 It shows Fig.12 A plan view of the upper surface of the converter is shown excluding the cover.

[0043] Fig.16 is along Fig.10 A cross-sectional view taken along line AA'.

[0044] Fig.17 is a perspective view showing a state in which an air pipe is coupled to a discharge outlet according to a second embodiment of the present invention.

[0045] Fig.18 is a perspective view of a discharge unit according to an embodiment of the present invention.

[0046] Fig.19 is a perspective view showing an air duct suction port according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0048] However, the technical idea of ​​the present invention is not limited to some embodiments to be described, but can be implemented in various forms, and one or more components can be selected, combined and replaced between the embodiments for use if it is within the scope of the technical idea of ​​the present invention.

[0049] In addition, unless explicitly defined and described, the terms (including technical terms and scientific terms) used in the embodiments of the present invention are generally understood by ordinary technicians in the technical field to which the present invention belongs, and can be interpreted as one meaning, and commonly used terms (such as terms defined in dictionaries) can be interpreted in consideration of their meanings in the relevant technical context.

[0050] In addition, the terms used in the embodiments of the present invention are used to describe the embodiments and are not intended to limit the present invention. In this specification, unless otherwise specified in a phrase, a singular form may include a plural form, and when described as "at least one (or more than one) of A, B, and C", it may include one or more of all combinations that can be combined with A, B, and C.

[0051] Furthermore, terms such as first, second, A, B, (a), (b), etc. may be used when describing components of embodiments of the present invention.

[0052] These terms are only used to distinguish a component from other components, and the nature, order or sequence, etc. of the components are not limited by the terms.

[0053] Furthermore, when a component is described as being “connected,” “coupled” or “interconnected” to another component, the component is not only directly connected, coupled or interconnected to the other component but may also include a case where the other component is “connected,” “coupled” or “interconnected” because there is another component between the other components.

[0054] Furthermore, when described as being formed or arranged at the "top (above) or bottom (below)" of each component, the top (above) or bottom (below) includes not only the case when the two components are in direct contact with each other, but also the case where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "top (above) or bottom (below)", it may include not only the meaning based on the upward direction of one component, but also the meaning based on the downward direction of one component.

[0055] Figure 1 is a perspective view of a converter according to a first embodiment of the present invention, Figure 2 is a plan view showing one side surface of a converter according to a first embodiment of the present invention, Figure 3 is a plan view showing an upper surface of a converter according to a first embodiment of the present invention, Figure 4 is an exploded perspective view of a converter according to an embodiment of the present invention, and Figure 5 yes Figure 3 A perspective view of the converter is shown without the cover.

[0056] refer to Figures 1 to 5, the outer shape of the converter 100 according to the first embodiment of the present invention may be formed by a base 120 and a housing 110 coupled to the upper surface of the base 120. The housing 110 may be formed in a rectangular parallelepiped shape having an open lower surface. In addition, the base 120 may be coupled to the lower surface of the housing 110 to cover a space formed in the housing 110. However, this is only an example, and of course, the converter 100 may be formed in a single housing structure in the form of a box.

[0057] The housing 110 may be formed of a metal material. For example, the material of the housing 110 may be aluminum.

[0058] The power terminal 102 and the signal terminal 104 may be arranged on the side surface of the converter 100, respectively. The power terminal 102 and the signal terminal 104 are formed to protrude outward from the side surface of the housing 110, and may be connected to an external connector, respectively. The power terminal 102 and the signal terminal 104 are electrically connected to a heat generating component (e.g., a printed circuit board 107, see FIG. 1 ) arranged inside the housing 110, respectively. Figure 4 ), so that when combined with an external connector, power or signals from an external configuration can be transmitted or input to the converter 100. Through holes (not shown) through which the power terminals 102 and the signal terminals 104 pass can be formed in the side surface of the housing 110.

[0059] A plurality of electronic components for driving the converter 100 may be arranged in a space inside the housing 110. For example, a printed circuit board 107 on which one or more devices are mounted may be arranged inside the housing 110. The printed circuit board 107 may be formed in a plate shape, and a plurality of electronic components may be arranged on an upper surface of the printed circuit board 107. The printed circuit board 107 may be provided in plural and may be arranged by forming layers in the upper and lower directions. As described above, the printed circuit board 107 may be electrically connected to the power terminal 102 and the signal terminal 104, respectively.

[0060] One or more heat generating components that generate heat according to driving may be disposed inside the housing 110. The heat generating component may be at least a part of the above-mentioned electronic component.

[0061] The heat generating components may be arranged on the upper surface of the printed circuit board 107. The heat generating components may include a transformer 108 for voltage regulation, an inductor for inductance, and one or more FET devices 105. Therefore, heat may be generated from the heat generating components according to driving of the converter 100.

[0062] The heat dissipation module is arranged on the housing 110. The heat dissipation module may include: a heat dissipation member; an inlet 139, which is arranged on one side of the heat dissipation member; and an outlet 162, which is arranged adjacent to the other side of the heat dissipation member. In addition, the heat dissipation member may include a plurality of heat dissipation fins 112 and a plurality of flow paths 115 arranged in a direction from the inlet 139 to the outlet 162.

[0063] In more detail, the inlet 139 is arranged on one side of the heat dissipation module, and the outlet 162 is arranged on the other side of the heat dissipation module. Air can be introduced into the flow path 115 through the inlet 139. The introduced air can be discharged to the outside through the outlet 162. The size of the inlet 139 can be larger than the size of the outlet 162. The surface area of ​​the inlet 139 can be larger than the surface area of ​​the outlet 162. Therefore, the air introduced from the inlet 139 can flow to the outlet 162 at a higher speed.

[0064] The heat dissipation fins 112 protruding upward from the upper surface may be provided on the outer surface of the housing 110. The heat dissipation fins 112 may be formed in a plate shape. Due to the heat dissipation fins 112, the surface area of ​​the outer surface of the housing 110 may be increased, so that the heat dissipation efficiency may be improved. That is, the heat generated from the heat generating components arranged in the housing 110 may be discharged to the outside through the heat dissipation fins 112.

[0065] The plurality of heat dissipating fins 112 may be arranged to be spaced apart from each other. Figure 6 ) may be formed between adjacent heat dissipation fins 112. The gap G is understood as a flow path through which the air discharged from the fan 180 flows. Therefore, the gap G may also be referred to as a flow path 115.

[0066] In addition, the area where the heat dissipation fins 112 are formed can overlap with the arrangement area of ​​the heat generating components in the up-down direction. The area where the heat dissipation fins 112 are formed can overlap with a partial area of ​​the cover 160 in the up-down direction, which will be described later. That is, the cover 160 can cover the upper surface of the heat dissipation fins 112.

[0067] Similarly, a plurality of flow paths 115 may be arranged in the region between adjacent heat dissipation fins 112 to overlap with the heat generating component in the up-down direction. The heat generating component and the plurality of flow paths 115 may be arranged to overlap each other in the vertical direction. Therefore, when air flows into the plurality of flow paths 115, heat may be effectively exchanged with heat generated by the heat generating component.

[0068] The plurality of heat dissipating fins 112 may include a first heat dissipating fin 112a of a first length and a second heat dissipating fin 112b of a second length arranged in a region between adjacent first heat dissipating fins 112a. Here, the first length may be longer than the second length. The region in which the plurality of first heat dissipating fins 112a are arranged may be divided into a first region arranged at a first interval and a second region arranged at a second interval. Here, the first interval may be formed to be wider than the second interval. In addition, the second heat dissipating fin 112b may be arranged in a region adjacent to the region in which the first gap is formed between the first heat dissipating fins 112a. The region in which the second gap is formed may be covered by the discharge unit 169 of the cover 160, which will be described later.

[0069] Meanwhile, the length L3 between two heat radiating fins arranged on the two outermost sides of the other side of the heat radiating member among the plurality of heat radiating fins 112 may be different from the length L2 between two heat radiating fins arranged on the two outermost sides of the central region M between the inlet 139 and the outlet 162 of the heat radiating member. Here, the central region may be understood as any region arranged between the inlet 139 and the outlet 162, and the other side of the heat radiating member may be understood as a region adjacent to the outlet.

[0070] In more detail, the length L3 between two heat dissipation fins arranged at the outermost sides among the plurality of heat dissipation fins 112 adjacent to the outlet 162 may be different from the length L1 between two heat dissipation fins arranged at the outermost sides among the plurality of heat dissipation fins 112 relatively close to the inlet 139. The length L3 between two heat dissipation fins arranged at the two outermost sides of the heat dissipation member among the plurality of heat dissipation fins may be shorter than the length L2 between two heat dissipation fins arranged at the two outermost sides of the central area of ​​the heat dissipation member.

[0071] That is, the closer to the inlet 139, the longer the length between the two heat dissipation fins arranged at the outermost side. In addition, the closer to the outlet 162, the shorter the length between the two heat dissipation fins arranged at the outermost side. The length between the two heat dissipation fins arranged on the outermost side may be the length of a straight line.

[0072] In other words, the length L1 between two heat dissipating fins 112 arranged at a region relatively close to the fan 180 of the heat dissipating member may be formed to be equal to or longer than the length L3 between two heat dissipating fins arranged at a region relatively close to the outlet 162 of the heat dissipating member.

[0073] In addition, the number of flow paths 115 on the other side of the heat dissipation member may be different from the number of flow paths 115 at the center of the heat dissipation member. The number of flow paths 115 adjacent to the outlet 162 may be different from the number of flow paths 115 relatively close to the fan 180. The number of flow paths 115 adjacent to the outlet 162 may be equal to or less than the number of flow paths 115 relatively close to the fan 180.

[0074] According to the above configuration, the air discharged from the fan 180 may pass through the flow path 115 and flow to the outlet 162 more quickly.

[0075] The heat dissipation module may further include a cover 160 disposed on the plurality of heat dissipation fins 112. The cover 160 may include an inlet 139 disposed adjacent to the fan 180 and an outlet 162 for exhausting air.

[0076] The cover 160 may be coupled to the upper surface of the housing 110. The cover 160 may be coupled to cover at least a portion of the upper surface of the housing 110. The cover 160 may cover the upper surface of the heat dissipation fins 112. In a space formed by the upper surface of the housing 110 and the inner surface of the cover 160, a duct 117 (see FIG. 1 ) may be formed. Figure 8 ), air discharged by the fan 180 flows through the duct, which will be described later. A partition unit 116 protruding upward may be arranged on the upper surface of the housing 110 to divide the area to which the cover 160 is coupled and other areas.

[0077] As described above, the cover 160 is coupled to the upper surface of the housing 110 to cover the upper surface of the heat dissipation fins 112. In addition, a discharge unit 169 through which air flowing through the duct 117 is discharged may be formed at one end of the cover 160. An outlet 162 for communicating the duct 117 with an external area may be formed in the discharge unit 169. The outlet 162 may be arranged in an area overlapping the power terminal 102 in the up-down direction.

[0078] The inner space of the cover 160 may be divided into a first area where the fan 180 is arranged, a second area where the heat dissipating fins 112 are arranged, and a discharge unit 169. The first area, the second area, and the discharge unit 169 may be sequentially arranged along the length direction of the cover 160.

[0079] The inclined surface 168 may be formed in at least a portion of the side surface of the cover 160 in a shape in which the width of the cover 160 is narrowed. The inclined surface 168 may be disposed in a region connecting the first region of the first heat dissipating fin 112a and the second region of the first heat dissipating fin 112a.

[0080] The fan 180 may be disposed inside the cover 160. The fan 180 may be disposed between an inner surface of the cover 160 and an upper surface of the housing 110. The fan 180 may be disposed in a first region of the cover 160.

[0081] Meanwhile, an imaginary line connecting the surface of the inlet 139 and the surface of the outlet 162 may form a predetermined angle with the side surface of the housing 110. Also, the inner surface of the inlet 139 and the inner surface of the outlet 162 may be formed non-parallel to the side surface of the housing 110.

[0082] The fan 180 can discharge air by being driven. The fan 180 can inhale air from the outer area of ​​the housing 110 and discharge the inhaled air into the duct 117. To this end, the fan 180 may include a plurality of blades 183 radially arranged and rotating around a rotation axis 182. The fan 180 may be electrically connected to the printed circuit board 107 to receive power required for driving or to receive an input signal for control. Therefore, when the temperature of the space in the housing 110 is equal to or higher than the reference temperature, the control unit may drive the fan 180. A temperature sensor (not shown) for temperature sensing may be additionally arranged in the housing 110.

[0083] Meanwhile, an opening 165 for exposing the upper surface of the fan 180 upward may be formed on the upper surface of the cover 160. The opening 165 may be arranged to overlap the fan 180 in a vertical direction.

[0084] Furthermore, a region 164 adjacent to the opening 165 among the upper surface of the cover 160 may have a shape protruding upward compared to other regions to accommodate a portion of the upper region of the fan 180 .

[0085] When the fan 180 is driven, external air may be introduced into the fan 180 through the opening 165 to make the fan 180 flow downward. In this embodiment, the fan 180 may be an axial flow fan that makes air flow in a direction parallel to the rotation axis 182.

[0086] Figure 6 is a perspective view showing a portion of an upper surface of a housing according to a first embodiment of the present invention. Figure 7 is a perspective view showing an air guide according to a first embodiment of the present invention. Figure 8 1 is a view for describing the flow of air in a duct according to the first embodiment of the present invention.

[0087] refer to Figures 4 to 8According to the first embodiment of the present invention, the air guide 130 is arranged on the upper surface of the housing 110. The air guide 130 may be formed to protrude upward from the upper surface of the housing 110 by a predetermined distance. The air guide 130 is arranged below the fan 180. The air guide 130 may guide the air discharged from the fan 180 to the heat dissipation fins 112.

[0088] The air guide 130 may be formed in a shape having a curvature in the circumferential direction of the fan. When the cross-sectional shape of the fan 180 is circular, the air guide 130 may be arranged to have a semicircular cross-sectional shape in a region overlapping a portion of the fan 180 in the up-down direction.

[0089] The air guide 130 may be formed such that the height protruding from the upper surface of the housing 110 decreases as it goes from one end to the other end. In other words, an inclined surface may be formed on the upper surface of the air guide 130 such that the distance to the upper surface of the housing 110 decreases as it goes from one end to the other end. One end and the other end of the air guide 130 may be classified according to the flow order of the air. When the blades 183 of the fan 180 refer to Figure 7 When rotating counterclockwise, it can be defined that the area placed in the relative clockwise direction is one end of the air guide 130, and the end facing the one end is the other end. Therefore, the air discharged from the fan 180 can flow from one end to the other end along the upper surface of the air guide 130.

[0090] An air groove 138 disposed between the plurality of air ribs 136 and adjacent air ribs 136 may be disposed on an upper surface of the air guide 130 .

[0091] The plurality of air ribs 136 may be arranged to be stepped relative to the bottom surface of the air slot 138. The air ribs 136 may be formed to protrude upward from the bottom surface of the air slot 138. The plurality of air ribs 136 may be arranged to be spaced apart from each other in the radial direction. Therefore, the air slot 138 may be arranged between adjacent air ribs 136. The plurality of air ribs 136 may be arranged to have a curvature relative to the center of the fan 180 along the circumferential direction of the fan.

[0092] The plurality of air ribs 136 may be formed to protrude such that the height of the protrusion from the upper surface of the housing 110 becomes higher as it goes toward the outside. That is, the height of the air ribs 136 relatively arranged on the outside protruding from the upper surface of the housing 110 may be higher than the height of the air ribs 136 arranged on the inside protruding from the upper surface of the housing. Therefore, air leakage to the outside of the air guide 130 can be prevented.

[0093] Therefore, the surface area of ​​the upper surface of the air guide 130 is increased by the air ribs 136, so that the air discharged from the fan 180 can be discharged more easily. In addition, the air discharged to the air grooves 138 can be concentrated and discharged at a higher speed.

[0094] In the region of one end of the housing 110 where the air guide 130 is arranged, a partition 132 protruding upward from the upper surface of the housing 110 may be formed for partitioning the region where the heat dissipation fins 112 are arranged and the region where the air guide 130 is arranged. The partition 132 may be formed to extend outward from a central portion 134 of the air guide 130. Therefore, when air is discharged from the fan 180, the air may flow from one end to the other end of the air guide 130, and some air may be prevented from flowing to the region where the heat dissipation fins 112 are arranged without passing through the air guide 130.

[0095] An inlet 139 for discharging air to the heat dissipation fins 112 may be formed at the other end of the air guide 130. Therefore, the air flowing along the upper surface of the air guide 130 may flow to the area where the heat dissipation fins 112 are arranged through the inlet 139. That is, it should be understood that the area where the air guide 130 is arranged and the area where the heat dissipation fins 112 are arranged are connected to each other through the inlet 139.

[0096] Meanwhile, the angle at which the air is discharged from the inlet 139 may be formed to be inclined at a predetermined angle relative to the side surface of the housing 110. Figure 3 As shown, when the imaginary center line L is drawn parallel to the side surface having a relatively wide cross-sectional area among the side surfaces of the housing 110, the angle at which the air is discharged from the inlet 139 may be formed to form an angle Φ with the center line L. Φ may be an acute angle. That is, since the discharge unit 162 of the cover 160 is arranged relatively close to one corner of the housing 110, and the air discharge unit 138 is arranged adjacent to another corner opposite to the one corner with respect to the center of the housing 110, the air flowing through the duct 117 flows in the diagonal direction of the housing 110, so that the air can move faster in the area between the heat dissipation fins 112. That is, the air flow in the duct 117 flows in the shortest distance, so there is an advantage of improving the heat dissipation efficiency.

[0097] Furthermore, the length direction of the heat dissipating fins 112 is also formed to correspond to the diagonal direction of the housing 110 on the upper surface of the housing 110 , so that the air flow space can be more widely ensured.

[0098] Figure 9a is a sectional view of an air guide according to a first embodiment of the present invention.

[0099] refer to Figure 9a, a plurality of air ribs 136 may be formed to protrude upward from the upper surface of the housing 110 toward the outside. In this case, an air gap 136c may be formed between adjacent air ribs 136. Figure 9a , the height of the bottom surface of the air gap 136c may be formed to have the same height as the bottom surface of the adjacent air gap 136c.

[0100] refer to Figure 9b , the heights of the bottom surfaces of the air gaps 136a may be different from each other. That is, the heights of the bottom surfaces of the plurality of air gaps 136c may be formed to be higher as they proceed toward the outside. In other words, the heights of the bottom surfaces of the plurality of air gaps 136c may be formed such that the height from the upper surface of the housing 110 increases as they proceed toward the outside.

[0101] Fig.10 is a perspective view showing a state in which an air pipe is coupled to a discharge unit according to a first embodiment of the present invention.

[0102] refer to Fig.10 , the converter 100 may further include an air pipe 198. The air pipe 198 may have a flow path through which air flows. One end of the air pipe 198 is connected to the discharge unit 169, and the air pipe discharge unit 199 is formed at the other end to discharge the air discharged from the discharge unit 169 to the outside. The air pipe 198 may have an area that is bent at least once.

[0103] Therefore, according to the converter of the present invention, since the air discharged from the fan 180 passes through the heat dissipation fins 112 and is discharged to the outside, there is an advantage that heat dissipation efficiency can be improved.

[0104] Furthermore, there is an advantage in that the air discharged from the fan through the air guide can be more easily guided to the duct.

[0105] Furthermore, since the wind speed can be increased more rapidly by causing the air to flow in the diagonal direction of the housing, there is an advantage that the heat dissipation effect can be maximized.

[0106] Fig.11 is a perspective view of a converter according to a second embodiment of the present invention, Fig.12 is a plan view showing an upper surface of a converter according to a second embodiment of the present invention, Fig.13 is a plan view showing a side surface of a converter according to a second embodiment of the present invention, Fig.14 is an exploded perspective view of a converter according to an embodiment of the present invention, and Fig.15 It shows Fig.12 A plan view of the upper surface of the converter is shown excluding the cover.

[0107] refer to Figures 11 to 15 , the outer shape of the converter 200 according to the second embodiment of the present invention may be formed by a base 210 and a housing 220 coupled to the upper surface of the base 210. The housing 220 may be formed in a rectangular parallelepiped shape with an open lower surface. In addition, the base 210 may be coupled to the lower surface of the housing 220 to cover a space formed in the housing 220. However, this is an example, and of course, the converter 200 may be formed in a single housing structure in the form of a box.

[0108] The housing 220 may be formed of a metal material. For example, the housing 220 may be made of aluminum.

[0109] The power terminal 202 and the signal terminal 204 may be arranged on the side surface of the converter 200, respectively. The power terminal 102 and the signal terminal 104 are formed to protrude outward from the side surface of the housing 220, and may be connected to an external connector, respectively. The power terminal 202 and the signal terminal 204 are electrically connected to a heat generating component (e.g., a printed circuit board 205) arranged inside the housing 220, respectively, so that when combined with an external connector, power or a signal from an external configuration is transmitted or input to the converter 200. A through hole (not shown) through which the power terminal 202 and the signal terminal 204 penetrate may be formed in the side surface of the housing 220.

[0110] A plurality of heat generating components for driving the converter 200 may be arranged in a space inside the housing 220. For example, a printed circuit board 205 on which one or more devices are mounted may be arranged in the housing 220. The printed circuit board 205 may be formed in a plate shape, and a plurality of heat generating components may be arranged on an upper surface of the printed circuit board 205. The printed circuit board 205 may be provided in plurality, and may be arranged by forming layers in the up and down directions. As described above, the printed circuit board 205 may be electrically connected to the power terminal 102 and the signal terminal 104, respectively.

[0111] One or more heat generating components that generate heat according to driving may be arranged in the housing 220. The heat generating components may be arranged on an upper surface of the printed circuit board 205. The heat generating components may include a transformer 206 for voltage regulation, an inductor for inductance, and one or more FET devices 207. Therefore, according to driving of the converter 200, heat may be generated from the heat generating components.

[0112] The heat dissipation module is arranged on the housing 220. The heat dissipation module may include: a heat dissipation member; an inlet 278, which is arranged on one side of the heat dissipation member; and an outlet 262, which is arranged adjacent to the other side of the heat dissipation member. In addition, the heat dissipation member may include a plurality of heat dissipation fins 230 and a plurality of flow paths 235 arranged in a direction from the inlet 278 toward the outlet 262.

[0113] In detail, the inlet 278 may be arranged on one side of the heat dissipation module, and the outlet 262 may be arranged on the other side of the heat dissipation module. Air may be introduced into the flow path 235 through the inlet 278. The introduced air may be discharged to the outside through the outlet 262. The size of the inlet 278 may be larger than the size of the outlet 262. The size of the cross-sectional area of ​​the inlet 278 may be larger than the size of the cross-sectional area of ​​the outlet 262. Therefore, the air introduced from the inlet 278 may flow to the outlet 262 at a higher speed.

[0114] The heat dissipation fins 230 protruding upward from the upper surface may be provided on the outer surface of the housing 220. The heat dissipation fins 230 may be formed in a plate shape. Due to the heat dissipation fins 230, the surface area of ​​the outer surface of the housing 220 may be increased, so that the heat dissipation efficiency may be improved. That is, the heat generated from the heat generating components arranged in the housing 220 may be discharged to the outside through the heat dissipation fins 230.

[0115] The heat dissipation fins 230 may be provided in plurality and arranged to be spaced apart from each other. A gap G may be formed between adjacent heat dissipation fins 230. The gap G is understood as a flow path through which the air discharged from the fan 270 flows. Therefore, the gap G may also be referred to as a flow path 235.

[0116] In addition, the area where the heat dissipation fins 230 are formed can overlap with the area where the heat generating components are arranged in the up-down direction. The area where the heat dissipation fins 230 are formed can overlap with a partial area of ​​the cover 260 in the up-down direction, which will be described later. That is, the cover 260 can cover the upper surface of the heat dissipation fins 230.

[0117] Similarly, a plurality of flow paths 235 may be arranged in the region between adjacent heat dissipation fins 230 to overlap with the heat generating component in the up-down direction. The heat generating component and the plurality of flow paths 235 may be arranged to overlap in the vertical direction. Therefore, when air flows inside the plurality of flow paths 235, the heat generated from the heat generating component may be effectively heat exchanged.

[0118] The plurality of heat dissipating fins 230 may include a first heat dissipating fin 231 of a first length and a second heat dissipating fin 232 of a second length arranged in an area between adjacent first heat dissipating fins 231. Here, the first length may be longer than the second length. The area where the plurality of first heat dissipating fins 231 are arranged may be divided into a first area arranged at a first interval and a second area arranged at a second interval. Here, the first interval may be formed to be wider than the second interval. In addition, the second heat dissipating fin 232 may be arranged in an area adjacent to the area where the first gap is formed between the first heat dissipating fins 231. The area where the second gap is formed may be covered by the discharge unit 269 of the cover 260.

[0119] Meanwhile, the length L3 between two heat radiating fins arranged on the two outermost sides of the other side of the heat radiating member among the plurality of heat radiating fins 230 may be different from the length L2 between two heat radiating fins arranged on the two outermost sides of the central area between the inlet 278 and the outlet 262 of the heat radiating member. Here, the central area may be understood as any area arranged between the inlet 278 and the outlet 262, and the other side of the heat radiating member may be understood as an area adjacent to the outlet.

[0120] In more detail, the length L3 between two heat dissipation fins arranged on the outermost sides among the plurality of heat dissipation fins 230 adjacent to the outlet 262 may be different from the length L1 between two heat dissipation fins arranged on the outermost sides among the plurality of heat dissipation fins 230 relatively close to the inlet 278. The length L3 between two heat dissipation fins arranged on the two outermost sides of the heat dissipation member among the plurality of heat dissipation fins 230 may be shorter than the length L2 between two heat dissipation fins arranged on the two outermost sides of the central region of the heat dissipation member.

[0121] That is, the closer to the inlet 278, the longer the length between the two heat dissipation fins arranged on the outermost side may be. In addition, the closer to the outlet 262, the shorter the length between the two heat dissipation fins arranged on the outermost side may be. The length between the two heat dissipation fins arranged on the outermost side may be the length of a straight line.

[0122] In other words, the length L1 between two heat dissipating fins 230 arranged in a region relatively close to the fan 270 of the heat dissipating member may be equal to or longer than the length L3 between the outlet 262 of the heat dissipating member and the two heat dissipating fins arranged in the relatively close region.

[0123] Also, the number of flow paths 235 on the other side of the heat dissipation member may be different from the number of flow paths 235 at the center of the heat dissipation member. The number of flow paths 235 adjacent to the outlet 262 may be different from the number of flow paths 235 relatively close to the fan 270. The number of flow paths 235 adjacent to the outlet 262 may be equal to or less than the number of flow paths 115 relatively close to the fan 270.

[0124] According to the above configuration, the air discharged from the fan 270 may pass through the flow path 235 and flow to the outlet 262 more quickly.

[0125] The heat dissipation module may further include a cover 160 disposed on the plurality of heat dissipation fins 112. The cover 160 may include an inlet 278 disposed adjacent to the fan 180 (see Fig.15 ) and an outlet 162 for exhausting air.

[0126] The cover 260 may be coupled to the upper surface of the housing 220. The cover 260 may be coupled to cover at least a portion of the upper surface of the housing 220. The cover 260 may cover the upper surface of the heat dissipation fins 230. In a space formed by the upper surface of the housing 220 and the inner surface of the cover 260, a duct 237 may be formed (refer to Fig.16 ), through which air discharged by the fan 270 flows, which will be described later. In the upper surface of the housing 220, a partition (not shown) protruding upward may be additionally arranged for partitioning the area to which the cover 260 is coupled and other areas.

[0127] As described above, the cover 260 is coupled to the upper surface of the housing 220 to cover the upper surface of the heat dissipation fins 230. In addition, the discharge unit 269 from which the air flowing through the duct 237 is discharged may be formed at one end of the cover 260. The outlet 262 for communicating the duct 237 with the external area may be formed in the discharge unit 269. The outlet 262 may be arranged in an area overlapping with the power terminal 202 in the up-down direction.

[0128] The inner space of the cover 260 may be divided into a first area where the heat dissipation fins 230 are arranged and a discharge unit 269. The first area and the discharge unit 269 may be sequentially arranged along a length direction of the cover 260.

[0129] The inclined surface 268 may be formed in at least a portion of the side surface of the cover 260 in a shape in which the width of the cover 260 is narrowed. The inclined surface 268 may be disposed in a region connecting the first region of the first heat dissipating fin 231 and the second region of the first heat dissipating fin 231.

[0130] Meanwhile, a sealing member (not shown) is disposed between the cover 260 and the upper surface of the housing 220 along the edge of the cover 260 , so that the air in the duct 237 can be prevented from flowing to the outside.

[0131] The fan 270 may be disposed on an upper surface of the housing 220. The fan 270 may include a housing 271 having an outer shape and a fan outlet 275 formed on an outer surface of the housing 271 to discharge air.

[0132] Meanwhile, an imaginary line connecting the surface of the inlet 278 and the surface of the outlet 262 may form a predetermined angle with the side surface of the housing 220. Also, the inner surface of the inlet 278 and the inner surface of the outlet 262 may be formed non-parallel to the side surface of the housing 220.

[0133] The fan 270 can discharge air by driving. The fan 270 can inhale air from the external area and discharge the inhaled air into the duct 237. To this end, the fan 270 may include a plurality of blades 279 radially arranged and rotating around the rotation axis 277. In addition, an air inlet may be formed on the upper surface of the housing 271. Therefore, the air introduced into the housing 271 through the air inlet may be discharged from the fan outlet 275 by the rotation of the blades 279. In this embodiment, the fan 270 may be a radial fan in which the blades 279 form a linear shape in the radial direction. Therefore, the fan outlet 275 may be formed on the side surface of the housing 271 to discharge the air inside the housing 271.

[0134] The fan 270 may be electrically connected to the printed circuit board 205 to receive power required for driving or receive an input signal for control. Therefore, when the temperature of the space inside the housing 220 is equal to or greater than the reference temperature, the control unit may drive the fan 270. A temperature sensor (not shown) for temperature sensing may be additionally arranged inside the housing 220.

[0135] The fan installation unit 223 may be provided on the upper surface of the housing 220 to surround the circumference of the fan 270 by protruding upward more than other areas. Therefore, the surface for installing the fan 270 in the upper surface of the housing 220 may be separated from other areas by the fan installation unit 223.

[0136] Fig.16 is along Fig.10 A cross-sectional view taken along line AA'.

[0137] refer to Figures 10 to 16 , the inlet 278 and the outlet 262 may be formed on a side surface of the cover 260. The inlet 278 and the outlet 262 may be arranged to face each other with respect to the duct 237.

[0138] The inlet 278 may be coupled to the fan outlet 275. Therefore, air discharged from the fan 270 may be introduced into the inlet 278 through the fan outlet 275. The cross-sectional area of ​​the inlet 278 is formed to be larger than the cross-sectional area of ​​the fan outlet 275, so that a portion of the fan 270 may be coupled to the inlet 278. In addition, a sealing member is arranged between an outer surface of the fan 270 coupled to the inlet 278 and an inner surface of the inlet 278 to prevent air from flowing to an external area.

[0139] Meanwhile, the angle at which air is sucked from the inlet 278 and the angle at which air is discharged from the fan outlet 275 may be formed to be inclined at a predetermined angle relative to the side surface of the housing 220. Fig.11As shown, when an imaginary center line L is drawn parallel to a side with a relatively wide cross-sectional area among the side surfaces of the housing 220, the angle at which the air is discharged from the fan outlet 275 may form an angle Φ with the center line L. In addition, the angle at which the air is sucked from the inlet 278 may form an angle Φ with the center line L. Φ may be an acute angle. That is, since the inlet 278 and the fan outlet 275 are arranged relatively close to one corner of the housing 220, and the outlet 262 is arranged adjacent to another corner facing one corner relative to the center of the housing 110, the air flowing through the duct 237 may flow in the diagonal direction of the housing 220. Therefore, the air in the duct 237 may move faster between the areas between the heat dissipation fins 230. That is, since the air flow in the duct 237 flows in the shortest distance, it has the advantage of improving the heat dissipation efficiency.

[0140] Furthermore, the length direction of the heat dissipating fins 230 is also formed to correspond to the diagonal direction of the housing 220 on the upper surface of the housing 220 , so that the air flow space can be more widely ensured.

[0141] Fig.17 is a perspective view showing a state in which an air pipe is coupled to a discharge outlet according to a second embodiment of the present invention, Fig.18 is a perspective view of a discharge unit according to an embodiment of the present invention, and Fig.19 is a perspective view showing an air duct suction port according to an embodiment of the present invention.

[0142] refer to Figures 17 to 19 , the converter 200 may further include an air pipe 300. The air pipe 300 may have a flow path 307 through which air flows. One end of the air pipe 300 may be coupled to the discharge unit 269, and the other end may extend to an external area of ​​the housing 220.

[0143] In more detail, an air pipe inlet 303 connected to the discharge unit 269 is formed at one end of the air pipe 300, and an air pipe outlet 301 may be formed at the other end of the air pipe 300 so that the air flowing through the flow path 307 is discharged to the outside. The air pipe suction port 303 may be communicatively connected to the outlet 262. Therefore, the air discharged from the outlet 262 may pass through the flow path 307 and be discharged to the outside of the converter 200 through the air pipe outlet 301.

[0144] The air tube 300 may include a region that is bent at least once or multiple times.

[0145] Meanwhile, an inlet groove 266 extending inward from an end portion of the discharge unit 269 and having an annular shape and arranged at an inner side of the locking groove 267 in a circumferential direction of the discharge unit 269 may be formed on the outer surface of the discharge unit 269 .

[0146] Furthermore, a rib 308 protruding inwardly may be disposed on the inner peripheral surface of the flow path 307 or the inner surface of the air tube suction port 303 .

[0147] Therefore, when the air pipe 300 and the discharge unit 269 are coupled, the rib 308 slidingly moves along the inlet groove 266 and then rotates a predetermined angle in the locking groove 267 so that the rib 308 can be disposed in the locking groove 267 .

[0148] Similarly, even when the air pipe 300 is separated from the discharge unit 269, the rib 308 is rotated at a predetermined angle to face the inlet groove 266 and then separated from the inlet groove 266 to the outside, so that the coupling can be released.

[0149] In the above, although all parts constituting the embodiment of the present invention are described as being combined into one or combined operation, the present invention is not necessarily limited to these embodiments. That is, within the scope of the purpose of the present invention, all constituent elements can be selectively combined and operated with one or more. In addition, the above-mentioned terms "including", "consisting of ... " or "having" refer to that unless otherwise specified, there may be corresponding parts, so other parts are excluded. On the contrary, it should be interpreted as being able to further include other parts. Unless otherwise defined, all terms (including technical terms and scientific terms) have the same meaning as those of ordinary skill in the art are generally understood. Common terms (such as terms defined in dictionaries) should be interpreted as being consistent with the meaning in the context of the relevant technology, and unless clearly defined in the present invention, it should not be interpreted as an ideal or overly formal meaning.

[0150] The above description is only used to illustrate the technical idea of ​​the present invention, and a person skilled in the art to which the present invention belongs can make various modifications and changes without departing from the essential features of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention, but are used to explain the technical idea, and the scope of the technical idea of ​​the present invention is not limited by these embodiments. The protection scope of the present invention shall be based on the attached claims, and all technical ideas within the scope equivalent thereto shall be understood to be included in the protection scope of the present invention.

Claims

1. A converter, comprising: case; A heat generating component, wherein the heat generating component is arranged inside the housing; as well as a heat dissipation module, wherein the heat dissipation module is arranged on the heat generating component, The heat dissipation module includes a heat dissipation member, an inlet adjacently arranged on one side of the heat dissipation member, an outlet adjacently arranged on the other side of the heat dissipation member, and a fan adjacently arranged on the inlet. wherein the heat dissipation member includes a plurality of heat dissipation fins and a plurality of flow paths arranged in a direction from the inlet toward the outlet, wherein the plurality of flow paths are arranged to overlap with the heat generating component in a vertical direction, wherein a distance between two heat dissipation fins arranged on two outermost sides of the other side of the heat dissipation member among the plurality of heat dissipation fins is different from a distance between two heat dissipation fins arranged on two outermost sides of a central area between the inlet and the outlet of the heat dissipation member, and wherein the angle at which air is discharged from the inlet is formed to be inclined at a predetermined angle relative to the side surface of the housing, wherein an air guide is arranged at the bottom of the fan and guides air toward the heat dissipation fins, wherein the air guide is formed into a shape having a curvature along a circumferential direction of the fan, wherein the air guide is formed such that a height protruding from the upper surface of the housing decreases from the one end to the other end as air flows from the one end to the other end, and Wherein, the air guide overlaps with the inlet.

2. The converter according to claim 1, wherein: The number of flow paths at the other side of the heat dissipation member is different from the number of flow paths in the central area of ​​the heat dissipation member.

3. The converter according to claim 2, wherein: The number of flow paths at the other side of the heat dissipation member is smaller than the number of flow paths in the central region of the heat dissipation member.

4. The converter according to claim 1, wherein: The flow path is formed between two heat dissipation fins adjacent to each other.

5. The converter according to claim 1, wherein: A length between two heat dissipation fins arranged on two outermost sides of one side of the heat dissipation member among the plurality of heat dissipation fins is equal to or greater than a length between two heat dissipation fins arranged at two outermost sides of the other side of the heat dissipation member.

6. The converter according to claim 1, wherein: The number of flow paths at the other side of the heat dissipating member is equal to or smaller than the number of flow paths at the one side.

7. The converter according to claim 1, wherein: The heat dissipation module includes a cover arranged on the plurality of heat dissipation fins, and Wherein, the cover includes the inlet and the outlet arranged adjacent to the fan.

8. The converter according to claim 1, wherein: The heat dissipation module includes the plurality of heat dissipation fins and a cover disposed on the fan, and the cover includes an opening overlapping the fan in a vertical direction.

9. A converter comprising: case; A heat generating component, wherein the heat generating component is arranged inside the housing; as well as a heat dissipation module, wherein the heat dissipation module is arranged on the housing, The heat dissipation module includes a heat dissipation component, an inlet arranged adjacent to one side of the heat dissipation component, an outlet arranged adjacent to the other side of the heat dissipation component, and a fan arranged adjacent to the inlet, and The heat dissipation member includes a plurality of heat dissipation fins and a plurality of flow paths arranged in a direction from the inlet to the outlet, the plurality of flow paths are arranged to overlap with the heat generating component in a vertical direction, and the size of the inlet is larger than the size of the outlet, wherein an air guide is arranged at the bottom of the fan and guides air toward the heat dissipation fins, wherein the air guide is formed into a shape having a curvature along a circumferential direction of the fan, wherein the air guide is formed such that a height protruding from the upper surface of the housing decreases from the one end to the other end as air flows from the one end to the other end, and Wherein, the air guide overlaps with the inlet.

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