Inductor module

Abstract

An inductor module according to one embodiment of the present invention comprises: an inductor accommodation unit for accommodating an inductor; a wire discharge unit extending from one side of a side plate of the inductor accommodation unit so as to form a passage through which a wire passes; and a wire bracket arranged in the wire discharge unit, wherein the wire bracket includes: a first base in contact with a base of the wire discharge unit; a first extension unit extending obliquely from the first base, and including a first through-hole through which one or more wires electrically connected to the inductor pass; and a second extension unit extending from the first extension unit in parallel with the first base.

Description

Inductor module

[0001] The present invention relates to an inductor module, and more specifically, to an inductor module including a wire bracket for guiding wire discharge, and an inverter module including the same.

[0002] Solar power generation is becoming widely adopted as an eco-friendly energy source, replacing conventional chemical and nuclear power generation. Solar power generation can be either standalone, with a battery connected to a converter, or grid-connected. Standalone systems typically consist of solar cells, storage batteries, and power conversion equipment, while grid-connected systems are connected to commercial power sources, enabling the exchange of power with load grid lines.

[0003] The electricity generated by solar panels cannot be used directly in homes or buildings, so it must be converted into usable electricity through a power conversion device such as an inverter. However, inverters generate a lot of heat during power conversion, and this heat can degrade performance, so heat dissipation is important. Furthermore, since inverters are installed outdoors, sealing is important to prevent foreign substances from entering. In addition, many components are placed inside the inverter, and the development of technology that can efficiently place these components inside the inverter module is necessary.

[0004] The technical problem to be solved by the present invention is to provide an inductor module including a wire bracket that guides wire discharge and an inverter module including the same.

[0005] In order to solve the above technical problem, an inductor module according to an embodiment of the present invention includes an inductor receiving portion for receiving an inductor; a wire discharge portion extending from one side of a side plate of the inductor receiving portion to form a passage through which a wire passes; and a wire bracket disposed in the wire discharge portion, wherein the wire bracket includes: a first base in contact with a base of the wire discharge portion; a first extension portion extending obliquely from the first base and including a first through-hole through which one or more wires electrically connected to the inductor pass; and a second extension portion extending from the first extension portion in parallel with the first base.

[0006] Additionally, the first base may be formed with a joining hole that is joined to the base of the wire discharge unit.

[0007] Additionally, the first through hole may include a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion including two holes spaced apart from each other.

[0008] Additionally, the holes of the first bushing portion may be arranged in a row.

[0009] Additionally, the first extension portion may include a display portion that displays identification information of a wire passing through each hole of the first bushing portion.

[0010] In addition, the inductor includes a first inductor and a second inductor, and the inductor receiving portion includes a first receiving portion forming a first internal space for receiving the first inductor; and a second receiving portion forming a second internal space for receiving the second inductor, and the first receiving portion and the second receiving portion may be formed to be spaced apart from each other.

[0011] In addition, the first receiving portion includes a first base; and a first side plate extending from the first base, and the second receiving portion includes a second base; and a second side plate extending from the second base, and a length from the first base of the first receiving portion to the upper end of the first receiving portion may be longer than a length from the second base of the second receiving portion to the upper end of the second receiving portion.

[0012] Additionally, the base of the wire discharge portion may extend from the second plate of the second receiving portion.

[0013] In order to solve the above technical problem, an inverter module according to an embodiment of the present invention includes a case forming an internal space in which components are arranged; a main heat sink including a heat sink coupled to a lower portion of the case and main heat sink fins extending from the heat sink; and an inductor module bonded to a lower portion of the heat sink of the main heat sink in a region where the main heat sink fins are not formed, and in which an inductor is arranged in the internal space, wherein the inductor module includes an inductor receiving portion accommodating the inductor; a first wire discharge portion extending from one side of a side plate of the inductor receiving portion to form a passage through which a wire passes; and a wire bracket disposed on the first wire discharge portion, wherein the wire bracket includes a first base in contact with a base of the first wire discharge portion; a first extension portion extending obliquely from the first base and including a first through-hole through which one or more wires electrically connected to the inductor pass; and a second extension portion extending from the first extension portion in parallel with the first base.

[0014] In addition, the main heat sink includes a second wire discharge portion from which a plurality of wires electrically connected to the inductor module are discharged, and the plurality of wires discharged from the second wire discharge portion can be guided and discharged to positions corresponding to the positions of the connectors to which they are respectively connected.

[0015] Additionally, the first base may be formed with a joining hole that is joined to the base of the wire discharge unit.

[0016] Additionally, the first through hole may include a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion including two holes spaced apart from each other.

[0017] According to embodiments of the present invention, a wire connected to an inverter module can be efficiently drawn into the case of the inverter module, and a plurality of wires discharged are guided to a position corresponding to the position of a connector to which they are respectively connected, thereby improving workability when a worker performs a task of connecting the wires whose positions are guided to the connectors.

[0018] FIG. 1 is a perspective view of an inductor module according to one embodiment of the present invention.

[0019] Figures 2 to 4 illustrate an inductor module according to an embodiment of the present invention.

[0020] FIGS. 5 and 6 are drawings for explaining a wire bracket of an inductor module according to an embodiment of the present invention.

[0021] FIG. 7 illustrates an inverter module including an inductor module according to an embodiment of the present invention.

[0022] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0023] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0024] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0025] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0026] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0027] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0028] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0029] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0030] FIG. 1 is a perspective view of an inductor module according to one embodiment of the present invention.

[0031] FIGS. 2 to 4 illustrate an inductor module according to an embodiment of the present invention, FIGS. 5 to 6 are drawings for explaining a wire bracket of an inductor module according to an embodiment of the present invention, and FIG. 7 illustrates an inverter module including an inductor module according to an embodiment of the present invention.

[0032] An inductor module according to an embodiment of the present invention accommodates an inductor therein. An inverter module according to an embodiment of the present invention, in which an inductor module according to an embodiment of the present invention is mounted, may be a PV inverter module. A PV inverter module is a device that receives power from a PV panel or a PV converter and converts it into power that can be used in a home or building. It receives DC power such as a PV converter, converts it into AC power, and outputs it. At this time, the DC power is transmitted to an inverter driving unit through a wire connection, the inverter driving unit converts the power, and then transmits the converted power to a load again through the wire connection. The inverter driving unit may include a power conversion element and a switching element or an MCU for controlling the power conversion element. The power conversion element may include a passive element such as an inductor or a capacitor, and may include a switching element implemented as a FET or a diode, and may include an MCU for controlling the switching element. In addition, various elements for converting power may be included, or elements for implementing functions other than power conversion may be included.

[0033] The inductor module according to an embodiment of the present invention can configure a separate module that accommodates the inductor of the inverter module, thereby enabling efficient heat dissipation for the inductor that generates a lot of heat.

[0034] To this end, the inductor module according to the embodiment of the present invention includes an inductor receiving portion that receives an inductor therein, a wire bracket (190), and a heat dissipation fin (130), and the inductor receiving portion may include a first receiving portion (110) and a second receiving portion (120).

[0035] An inductor module according to an embodiment of the present invention accommodates a first inductor (151, 152) and a second inductor (160). Here, the first inductor (151, 152) may be an inverter-side inductor, and the second inductor (160) may be a grid-side inductor. The inverter-side inductor and the grid-side inductor may have different required specifications, and accordingly, the overall size of the inverter and the number of included coils may vary. In order to accommodate the first inductor (151, 152) and the second inductor (160) in different spaces, a first receiving portion (110) for accommodating the first inductor (151, 152) and a second receiving portion (120) for accommodating the second inductor (160) may be included.

[0036] The first receiving portion (110) forms a first internal space for receiving a first inductor (151, 152). The first receiving portion (110) may include a first base (111) and a first side plate (112) extending from the first base (111). The first base (111) forming the lower plate of the first receiving portion (110) and the first side plate (112) forming the side plate of the first receiving portion (110) are configured to receive the first inductor (151, 152).

[0037] The second receiving portion (120) forms a second internal space that receives the second inductor (160). The second receiving portion (120) may include a second base (121) and a second side plate (122) extending from the second base (121). The second base (121) forming the lower plate of the second receiving portion (120) and the second side plate (122) forming the side plate of the second receiving portion (120) are configured to receive the second inductor (160).

[0038] The first receiving portion (110) and the second receiving portion (120) may be formed to be spaced apart from each other. The first inductor (151, 152) placed in the first receiving portion (110) and the second inductor (160) placed in the second receiving portion (120) are different from each other as an inverter-side inductor and a grid-side inductor, and since the magnetic fields generated by the coils may affect each other, they may be placed in different receiving portions, and the first receiving portion (110) and the second receiving portion (120) may be spaced apart from each other to prevent them from affecting each other.

[0039] The sizes of the internal spaces formed by the first receiving portion (110) and the second receiving portion (120) may be different. The internal space of the first receiving portion (110) may correspond to the size of the first inductor (151, 152), and the internal space of the second receiving portion (120) may correspond to the size of the second inductor (160).

[0040] The first inductor (151, 152) may have a larger size than the second inductor (160). The number of coils included in the first inductor (151, 152) may be greater than the number of coils included in the second inductor (160), and the size of the coil included in the first inductor (151, 152) may be larger than the size of the coil included in the second inductor (160).

[0041] Depending on the difference in size between the first inductor (151, 152) and the second inductor (160), the size of the internal space of the first receiving portion (110) may be larger than the size of the internal space of the second receiving portion (120).

[0042] The length from the first base (111) of the first receiving portion (110) to the top of the first receiving portion may be longer than the length from the second base (121) of the second receiving portion (120) to the top of the second receiving portion. That is, the height of the internal space of the first receiving portion (110) may be greater than the height of the internal space of the second receiving portion (120). The area of ​​the first receiving portion (110) may be wider than the area of ​​the second receiving portion (120), and the internal volume of the first receiving portion (110) may be wider than the internal volume of the second receiving portion (120). The area of ​​the first base (111) of the first receiving portion (110) may be wider than the area of ​​the second base (121) of the second receiving portion (120). The length of the first base (111) in the first direction in which the first receiving portion (110) and the second receiving portion (120) are spaced apart may be longer than the length of the second base (121). In the direction perpendicular to the first direction in which the first receiving portion (110) and the second receiving portion (120) are spaced apart, the length of the first base (111) and the length of the second base (121) may be the same.

[0043] The first inductor (151, 152) may be placed in the first receiving portion (110) and molded, and the second inductor (160) may be placed in the second receiving portion (120) and molded. After the first inductor (151, 152) is placed in the internal space of the first receiving portion (110), a molding liquid may be filled into the first receiving portion (110) to mold the first inductor (151, 152). Through molding, heat generated in the first inductor (151, 152) may be quickly and efficiently transferred to the first base (111) and the first side plate (112) of the first receiving portion (110). In addition, the first inductor (151, 152) may be positioned in the first receiving portion (110) through molding.

[0044] After the second inductor (160) is placed within the internal space of the second receiving portion (120), the molding liquid can be filled into the second receiving portion (120) to mold the second inductor (160). Through the molding, the heat generated in the second inductor (160) can be quickly and efficiently transferred to the second base (121) and the second side plate (122) of the second receiving portion (120). In addition, the molding can ensure that the second inductor (160) is positioned in the second receiving portion (120).

[0045] The heat dissipation fins (130) extend from the outer surfaces of the first receiving portion (110) and the second receiving portion (120). The inductor module (100) according to the embodiment of the present invention is configured as a separate module that receives the inverter of the inverter module for efficient heat dissipation, and the heat dissipation fins (130) are formed on the outer surfaces of the first receiving portion (110) and the second receiving portion (120).

[0046] The heat dissipation fin (130) may include a plurality of first heat dissipation fins (131) that are formed along the outer surface of the first side plate (112) of the first receiving portion (110), the outer surface of the first base (111) of the first receiving portion (110), the space between the first receiving portion (110) and the second receiving portion (120), the outer surface of the second base (121) of the second receiving portion (120), and the outer surface of the second side plate (122) of the second receiving portion (120) along the first direction, which is the longitudinal direction of the inductor module.

[0047] The first heat dissipation fin (131) may be formed to extend over the entire outer surface of the inductor module (100) in the longitudinal direction of the inductor module. It may be formed along the outer surface of the first side plate (112) of the first receiving portion (110), the outer surface of the first base (111) of the first receiving portion (110), the space between the first receiving portion (110) and the second receiving portion (120), the outer surface of the second base (121) of the second receiving portion (120), and the outer surface of the second side plate (122) of the second receiving portion (120). The space between the first receiving portion (110) and the second receiving portion (120) is formed to have a large area of ​​the heat dissipation fin, so that even if heat is simultaneously transferred from the first inductor (151, 152) and the second inductor (160), heat dissipation to the outside can be efficiently performed.

[0048] The heat dissipation fin (130) may include a second heat dissipation fin that extends in a different direction from the first heat dissipation fin. The heat dissipation fin (130) may be formed along the outer surface of the first side plate (112) of the first receiving portion (110) where the first heat dissipation fin is not formed along the first direction, the space between the first receiving portion (110) and the second receiving portion (120), and the outer surface of the second side plate (122) of the second receiving portion (120) where the first heat dissipation fin is not formed, and may include a plurality of second heat dissipation fins that are spaced apart from each other in a third direction that is perpendicular to the first direction and the second direction. The first side plate (112) of the first receiving portion (110) where the first heat dissipation fin is not formed may be two side plates, and the second heat dissipation fins may be formed by extending in opposite directions from two side plates facing each other.

[0049] Heat generated from the first inductor (151, 152) and the second inductor (160) can be dissipated to the outside through the heat dissipation fin (130). The heat dissipation fin (130) is formed to extend in a first direction, and the first direction corresponds to the vertical direction when mounted on the inverter module, and heat can be dissipated efficiently by moving in the vertical direction.

[0050] In an inductor module according to an embodiment of the present invention, as shown in FIG. 2, the first receiving portion (110) and the second receiving portion (120) are formed to be separated and spaced apart (140), thereby enabling efficient heat dissipation.

[0051] The wire discharge portion (125) is a location where a wire connected to the inductor is drawn out, and the wire discharge portion (125) may include a wire bracket (190) that guides the wire to the outside.

[0052] The wire discharge portion (125) extending from one side of the second side plate (122) of the receiving portion (120) to form a passage through which a wire passes may be included, and a first wire bracket (190) disposed on the wire discharge portion (125) may be included. The first wire bracket (190) may include a first base (191) that is in contact with the base (124) of the wire discharge portion (125), a first extension portion (192) that extends obliquely from the first base (191) and includes a first through-hole (194) through which at least one first wire electrically connected to the first inductor (151, 152) and at least one second wire electrically connected to the second inductor (160) pass, and a second extension portion (193) that extends parallel to the first base (191) from the first extension portion (192). Since the wire requires a lot of space to bend and rise due to its strength, the first extension part (192) is formed to be inclined in order to change the direction of the wire in a narrow space, so that the path can be optimized when wiring the wire. A joining hole (196) can be formed in the first base (191) so that it can be joined to the base (124) of the wire discharge part (125). The first base (191) can be joined and fixed to the base (124) of the wire discharge part (125) through the joining hole (196).

[0053] In order to guide the withdrawal of the wire, a first through hole is formed, and the first through hole (194) includes a plurality of first through holes, and each of the plurality of first through holes may include a first bushing portion (195) including two holes spaced apart from each other.

[0054] The holes of the first bushing part (195) can be arranged in a row. Through this, the wires arranged in the first bushing part (195) can be arranged in a row to be easily connected to the components inside the inverter module. In addition, the first extension part (192) can include a display part (not shown) that displays identification information of the wires passing through each hole of the first bushing part (195). Compared to a method in which wires are randomly ejected from the core molding and identified only by simple wire labeling information and connected to the product's board connector location, the ejection order is displayed by matching the ejection order with the connector terminal location order of the board according to the identification information of the ejected wires, thereby improving wire connection workability.

[0055] The wire is introduced into the lower part of the second extension part (193), passes through the hole of the first bushing part (195) included in the first through hole (194), is introduced into the wire discharge part (125), and can be drawn out of the inductor module through the open space exposed upward.

[0056] An inverter module according to an embodiment of the present invention includes a case in which components are arranged, a cover covering the case, a main heat sink, and an inductor module (100). A detailed description of the inductor module (100) included in the inverter module corresponds to the detailed description of the inductor module of FIGS. 1 to 6, and any overlapping descriptions will be briefly described below.

[0057] An inverter module according to one embodiment of the present invention may include a case forming an internal space in which components are arranged, a main heat sink including a heat sink (221) coupled to a lower portion of the case and main heat sink fins extending from the heat sink, and an inductor module (100) bonded to a lower portion of the heat sink of the main heat sink in which the main heat sink fins are not formed, and in which an inductor is arranged in the internal space, and the inductor module (100) may include an inductor receiving portion (110, 120), a wire discharge portion (125), and a wire bracket (190).

[0058] In addition, the main heat sink includes a second wire discharge portion (222) from which a plurality of wires electrically connected to the inductor module are discharged, and the plurality of wires discharged from the second wire discharge portion (222) can be guided and discharged to positions corresponding to the positions of the connectors to which they are respectively connected.

[0059] In addition, the first base (191) may be formed with a joining hole that is joined to the base of the wire discharge unit, the first through hole (194) may include a plurality of first through holes, and a first bushing part (195) may be arranged in each of the plurality of first through holes, which includes two holes spaced apart from each other.

[0060] When the inductor module is mounted on the inverter module, it is joined to the heat sink (221) of the main heat sink of the inverter module, and a wire discharge portion (222) is formed on the heat sink (221) through which the wire of the inductor module is discharged, so that it can be drawn out into the case of the inverter module through the wire discharge portion (125) of the heat sink (1221). This can improve workability when a worker performs the task of connecting a wire whose position is guided to a connector.

[0061] As described above, the present invention has been described with specific details such as specific components and limited examples and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above examples, and those with ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from this description.

[0062] Therefore, the idea of ​​the present invention should not be limited to the described embodiments, and all things that are equivalent or equivalent to the following claims as well as the claims are considered to fall within the scope of the idea of ​​the present invention.

Claims

1. Inductor housing for housing the inductor; A wire discharge portion extending from one side of the side plate of the inductor receiving portion to form a passage through which a wire passes; and Including a wire bracket arranged in the above wire discharge section, The above wire bracket, A first base in contact with the base of the above wire discharge portion; A first extension portion extending obliquely from the first base and including a first through hole through which one or more wires electrically connected to the inductor pass; and An inductor module comprising a second extension portion extending parallel to the first base from the first extension portion.

2. In paragraph 1, An inductor module in which the first base has a joining hole formed therein to be joined to the base of the wire discharge portion.

3. In paragraph 1, The above first through hole includes a plurality of first through holes, An inductor module in which each of the plurality of first through holes has a first bushing portion including two holes spaced apart from each other.

4. In paragraph 3, An inductor module in which the holes of the first bushing portion are arranged in a row.

5. In paragraph 3, The above first extension part, An inductor module including a display section that displays identification information of a wire passing through each hole of the first bushing section.

6. In paragraph 1, The above inductor comprises a first inductor and a second inductor, The above inductor receiving portion is, A first receiving portion forming a first internal space for receiving the first inductor; and Including a second receiving portion forming a second internal space for receiving the second inductor, An inductor module in which the first receiving portion and the second receiving portion are formed spaced apart from each other.

7. In paragraph 6, The above first receiving unit is, a first base; and a first side plate extending from the first base, The above second receiving unit is, a second base; and a second side plate extending from the second base, An inductor module wherein the length from the first base of the first receiving portion to the top of the first receiving portion is longer than the length from the second base of the second receiving portion to the top of the second receiving portion.

8. In paragraph 7, An inductor module in which the base of the wire discharge portion extends from the second side plate of the second receiving portion.

9. A case forming an internal space in which parts are placed; A main heatsink including a heat sink coupled to the lower portion of the case and main heat sink fins extending from the heat sink; and An inductor module is included, which is bonded to a lower area of ​​the heat sink of the main heat sink where the main heat sink fin is not formed, and in which an inductor is placed in the internal space. The above inductor module, An inductor receiving portion for receiving the above inductor; A first wire discharge portion extending from one side of the side plate of the inductor receiving portion to form a passage through which a wire passes; and Including a wire bracket arranged in the first wire discharge section, The above wire bracket, A first base in contact with the base of the first wire discharge portion; A first extension portion extending obliquely from the first base and including a first through hole through which one or more wires electrically connected to the inductor pass; and An inverter module including a second extension portion extending parallel to the first base from the first extension portion.

10. In paragraph 9, The above main heat sink is, A second wire discharge unit is included from which a plurality of wires electrically connected to the above inductor module are discharged, A plurality of wires discharged from the second wire discharge portion are, An inverter module that is guided and discharged to a position corresponding to the position of each connected connector.

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