Filter holder

Abstract

A filter holder according to an embodiment of the present invention comprises: a filter reception part for receiving a filter therein; a plurality of wire guide parts formed outside the filter reception part; at least one fixing part formed between two adjacent wire guide parts among the plurality of wire guide parts and having a coupling hole formed therein; and at least one support part formed between two wire guide parts having no fixing part formed therebetween, among pairs of two adjacent wire guide parts of the plurality of wire guide parts, the at least one support part extending downward.

Description

filter holder

[0001] The present invention relates to a filter holder, and more specifically, to a filter holder for fixing a filter.

[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 power generated by solar panels cannot be used directly within homes or buildings. Therefore, it must be converted into usable power through power conversion devices such as inverters, which connect external power lines. At this time, core-bead filters are used to block EMI from the power lines. However, power lines are thick and subject to high tension, making it difficult to properly position and secure the filters. Consequently, after assembly, they are often left in random locations, potentially affecting other components. Furthermore, silicone coatings are often used to prevent vibration. A technology that can securely position the filter is needed.

[0004] The technical problem to be solved by the present invention is to provide a filter holder for fixing a filter.

[0005] In order to solve the above technical problem, a filter holder according to an embodiment of the present invention includes a filter receiving portion for receiving a filter; a plurality of wire guide portions formed on the outside of the filter receiving portion; at least one fixing portion formed between two adjacent wire guide portions among the plurality of wire guide portions and having a joining hole formed therein; and at least one support portion formed between two wire guide portions among two adjacent wire guide portions of the plurality of wire guide portions, between which the fixing portion is not formed, and extending downward.

[0006] In addition, the filter receiving portion includes a base including a hole in the center; a side portion extending upward from the base; and a hook portion formed in an area of ​​the side portion corresponding to the support portion, and the filter is placed in an internal space formed by the base and the side portion, and can be hook-coupled through the hook portion.

[0007] In addition, the filter receptacle may have a base formed in a circular shape and a side surface formed in a curved shape to form an internal space in a cylindrical shape.

[0008] Additionally, the hook portion may include two hook portions facing each other.

[0009] Additionally, the hook portion may be positioned to protrude upward from the upper portion of the side portion.

[0010] In addition, it may include one or more clamping portions extending downward from an area of ​​the base corresponding to a position of the fixing portion, and the clamping portion may include a first extension portion extending in a direction inclined from the base toward the center of the filter receiving portion; and a second extension portion extending from the first extension portion in a direction parallel to the base.

[0011] Additionally, the clamping portion may be positioned 90 degrees apart from the hook portion based on the center of the filter receiving portion.

[0012] Additionally, when the filter holder is stacked with another filter holder, the clamping portion can come into contact with the upper portion of the filter fastened to the other filter holder.

[0013] In addition, the wire guide portion includes a third extension portion extending in a first direction from the support portion; and a fourth extension portion extending in a second direction perpendicular to the first direction from the third extension portion, wherein the fourth extension portion can extend in a direction toward the fixing portion.

[0014] Additionally, the fourth extension portion and the fixing portion positioned in the direction in which the fourth extension portion extends may be spaced apart by a first distance.

[0015] Additionally, the first distance may be wider than the diameter of the wire penetrating the wire guide portion.

[0016] Additionally, it may include a first bending portion that is bent and extended from the third extension portion and connected to the fourth extension portion.

[0017] In addition, the fixed part may include a first body protruding outwardly from the outside of the filter receiving part; and a first coupling part extending downwardly from the first body, and the coupling hole penetrating the inside of the first coupling part may be formed.

[0018] Additionally, a first coupling groove corresponding to the cross-sectional area of ​​the lower portion of the coupling hole may be included on the upper portion of the coupling hole.

[0019] Additionally, when the filter holder is stacked with another filter holder, a part of the first coupling portion of the other filter holder may be placed in the first coupling groove.

[0020] Additionally, the length of the first connecting portion extending from the first body may be greater than or equal to 1 / 8 and less than or equal to 2 / 3 of the diameter of the hole in the center of the filter receiving portion.

[0021] In addition, the support may include two fifth extensions protruding outwardly from the outside of the filter receiving portion corresponding to both sides of the position where the hook portion of the filter receiving portion is formed; a first connecting portion connecting the ends of the two fifth extensions; and a sixth extension extending from the lower portion of the two fifth extensions and the first connecting portion.

[0022] Additionally, the sixth extension portion may have a width that becomes narrower as the portion extending from the first connecting portion extends downward.

[0023] Additionally, a second joining groove corresponding to the cross-sectional area of ​​the lower portion of the sixth extension portion may be included on the upper portion of the first connecting portion.

[0024] Additionally, when the filter holder is stacked with another filter holder, a part of the sixth extension of the other filter holder may be placed in the second joining groove.

[0025] Additionally, when the filter holder is stacked with another filter holder, the hook portion of the filter receiving portion may be placed in the internal space formed by the sixth extension portion.

[0026] According to embodiments of the present invention, the filter is fixed to the holder, and the holder can be fixed with screws, thereby ensuring shock and vibration resistance compared to the existing free-standing state. In addition, the optimal design of a square holder for a circular filter can secure maximum wiring space, and various functional elements can be implemented in a single holder injection molded piece. Furthermore, holders can be stacked, thereby increasing vertical space utilization and allowing for a variety of stacking arrangement structures depending on the placement environment. Furthermore, wiring work can be performed while the filter is inserted into the holder, facilitating work and minimizing volume after assembly.

[0027] FIG. 1 is a perspective view of a filter holder according to one embodiment of the present invention.

[0028] FIG. 2 is a drawing for explaining the shape of a filter mounted on a filter holder according to an embodiment of the present invention.

[0029] Figures 3 to 7 are drawings for explaining each configuration of the filter holder in an embodiment of the present invention.

[0030] FIGS. 8 to 10 are drawings for explaining an embodiment of stacking a filter holder in an embodiment of the present invention.

[0031] Fig. 11 is a drawing for explaining a process of attaching a wire to a filter holder in an embodiment of the present invention.

[0032] FIG. 12 and FIG. 13 are drawings for explaining an embodiment of mounting a filter holder according to an embodiment of the present invention to an inverter module.

[0033] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] FIG. 1 is a perspective view of a filter holder according to one embodiment of the present invention.

[0042] FIG. 2 is a drawing for explaining a shape in which a filter is mounted on a filter holder according to an embodiment of the present invention, FIGS. 3 to 7 are drawings for explaining each configuration of a filter holder according to an embodiment of the present invention, FIGS. 8 to 10 are drawings for explaining an embodiment of stacking a filter holder according to an embodiment of the present invention, FIG. 11 is a drawing for explaining a process of fastening a wire to a filter holder according to an embodiment of the present invention, and FIGS. 12 and 13 are drawings for explaining an embodiment of mounting a filter holder according to an embodiment of the present invention on an inverter module.

[0043] A filter holder (100) according to an embodiment of the present invention includes a filter receiving portion (110), a wire guide portion (120), a fixing portion (130), and a support portion (140).

[0044] The filter receiving portion (110) receives a filter (200).

[0045] Here, the filter (200) may be an EMI filter. EMI (Electromagnetic Interference) is a radio interference, and an EMI filter is a filter that blocks radio interference so that noise generated by power lines does not affect other components. The filter receiving portion (110) may be formed in a shape corresponding to the shape of the filter (200) in order to receive the filter (200). The filter (200) may be formed in a cylindrical shape with a hole formed in the center, and the filter receiving portion (110) may be formed in a shape corresponding thereto so that the cylindrical filter (200) may be received. Alternatively, if the outer surface of the filter receiving portion (110) has a hexahedral shape, the filter (200) may be formed accordingly. As shown in FIG. 2, the filter (200) may be placed inside the filter receiving portion (110) and fastened to the filter holder (100).

[0046] The filter receptacle (110) may include a base (111), a side portion (113), and a hook portion (114), and may include a clamping portion (150).

[0047] The base (111) may include a hole in the center. The base (111) has a surface shape that comes into contact with the lower surface of the filter (200), and may include a hole (112) in the center corresponding to the hole of the filter (200). The hole (112) may be formed in a circular shape.

[0048] The side portion (113) may be formed by extending upward from the base (111). The filter (200) may be placed in the internal space formed by the base (111) and the side portion (113). The filter (200) may be formed in a cylindrical shape, and correspondingly, the base (111) may be formed in a circular shape, and the side portion (113) may be formed in a curved surface along the circumferential edge of the base (111) to form an internal space in a cylindrical shape.

[0049] The hook portion (114) can be formed in the area of ​​the side portion (113) corresponding to the support portion (140).

[0050] The hook portion (114) can hook-connect the filter (200) so that the filter (200) is not detached from the filter receiving portion (110) when the filter (200) is positioned inside the filter receiving portion (110). The hook portion (114) is positioned to protrude upward from the upper portion of the side portion (113) so that the hook portion of the hook portion (114) catches on the upper surface of the filter (200), thereby preventing the filter (200) from being detached. The hook portion (114) should be hook-connected so that the filter (200) is pushed back when the filter (200) is inserted into the internal space of the filter receiving portion (110) and returns to its original position due to elasticity when the filter (200) is positioned in the internal space of the filter receiving portion (110). Therefore, a movable space is required. To this end, the hook portion (114) can be formed in an area of ​​the side portion (113) corresponding to the support portion (140). The support part (140) can form a space between the two fifth extension parts (141) and the first connection part (142), and through the space, a movement space of the hook part (114) can be formed. When the filter (200) is inserted into the internal space of the filter receiving part (110), the hook part (114) is pushed into the space between the two fifth extension parts (141) and the first connection part (142) of the support part (140), and when the filter (200) is positioned in the internal space of the filter receiving part (110), it can be hooked by returning to its original position due to elasticity.

[0051] The hook portion (114) may include one or more hook portions, and may include two hook portions facing each other. In order to secure the filter (200) on both sides, two hook portions may be formed facing each other. Three or more hook portions may also be included.

[0052] The clamping portion (150) may extend downward from a portion of the base (111) corresponding to the position of the fixing portion (130). The clamping portion (150) may serve to fix the filter (200) positioned below by contacting it when the filter holder (100) is combined with another filter holder (300) in a stacked manner. The clamping portion (150) may press the upper portion of the filter (200) positioned below to fix its position. Alternatively, the filter holder (100) may serve to fix the filter (200) by contacting it when combined with a substrate or case. At this time, the clamping portion (150) may be formed at a position corresponding to the position of the fixing portion (130). The hook portion (114) is formed at a position corresponding to the position of the support portion (140), and the clamping portion (150) is formed at a position corresponding to the position of the fixing portion (130), so that the filter (200) can be fixed at different positions rather than the same position, thereby more stably fixing the filter (200) within the filter receiving portion (110).

[0053] The clamping portion (150) may include a first extension portion (151) and a second extension portion (152). The first extension portion (151) may extend from the base (111) in a direction inclined toward the center of the filter receiving portion (110), and the second extension portion (152) may extend from the first extension portion (151) in a direction parallel to the base (111). The first extension portion (151) may extend downward from a portion of the base (111) that contacts the side portion (113), but may extend in a direction inclined toward the center of the filter receiving portion (110). The second extension portion (152) may extend from the end of the first extension portion (151) in a direction parallel to the base (111), and may come into surface contact with the upper portion of the filter (200) when in contact with the filter (200). The first extension (151) can have elasticity in the upper and lower directions by being extended in an inclined manner, and can pressurize the filter (200) through the second extension (152) that comes into contact with the upper part of the filter (200).

[0054] The clamping portion (150) may include one or more clamping portions, and may include two clamping portions facing each other. In order to fix the filter (200) on both sides, two clamping portions may be formed facing each other. Three or more clamping portions may be included. The clamping portions (150) may be arranged at a predetermined angle with respect to the center of the base (111) along the circumference of the hook portion (114) and the base (111), and the clamping portion (150) may be arranged at a 90-degree angle with respect to the center of the filter receiving portion (110). By having the two hook portions (114) and the two clamping portions (150) each being arranged at a 90-degree angle, the filter (200) can be stably fixed. In addition, when forming the hook portion (114) and the clamping portion (150), a part of the filter receiving portion (110) can be used. At this time, when the hook portion (114) and the clamping portion (150) are formed at the same or close positions, the rigidity of the corresponding portion may decrease, making work difficult. However, by spacing the hook portion (114) and the clamping portion (150) apart, the rigidity can be maintained while workability can be increased. In addition, the position of the clamping portion (150) corresponds to the position of the fixing portion (130) that is screwed in, so that the pressurizing performance of the clamping portion (150) can be increased when the bolt (410) is screwed in.

[0055] When the filter holder (100) is stacked with another filter holder (300), the clamping portion (150) can come into contact with the upper portion of the filter (200) fastened to the other filter holder (300), and together with the hook portion of the other filter holder (300), the filter (200) can be fixed in the filter receiving portion. The extension length of the first extension portion (151) can be determined so that the position of the second extension portion (152) of the clamping portion (150) corresponds to the upper portion of the filter (200) fastened to the other filter holder (300).

[0056] The wire guide portion (120) is formed on the outside of the filter receiving portion (110). The wire guide portion (120) may include a plurality of wire guide portions. The wire guide portion (120) may include four wire guide portions (120) at each of the four corners centered on the filter receiving portion (110). By forming four wire guide portions (120) at the four corners of the filter receiving portion (110) having a circular cross-section, unusable dead space can be reduced, enabling efficient space utilization and increasing stackability. In addition, the wire guide portions (120) are spaced apart from each other, thereby preventing contact between wires passing through the wire guide portions (120), thereby reducing noise due to wire-to-wire contact. The wire guide portion (120) may serve to guide the position of the wire and allow the wire to pass through so that the wire can be coupled to the filter (200). The wire guide portion (120) can form an internal space surrounded by the outer side of the filter receiving portion (110), the fixing portion (130), and the support portion (140). The wire can be guided to pass through the space.

[0057] The wire guide portion (120) may include a third extension portion (121) and a fourth extension portion (123), and may include a bend portion (122).

[0058] The third extension portion (121) may extend in a first direction from the support portion (140). The filter receiving portion (110) may have a circular cross-section, but the entire shape including the wire guide portion (120) may have a square cross-section. The third extension portion (121) may extend in the first direction from the support portion (140) to form a side of the square shape. That is, it may extend in a tangential direction of the circular shape of the filter receiving portion (110). The fourth extension portion (123) may extend in a second direction perpendicular to the first direction from the third extension portion (121). At this time, the fourth extension portion (123) may extend in a direction toward the fixing portion (130) to form another side of the square shape. Through this, the wire guide portion (120) may form a corner of the square shape. At this time, the fourth extension portion (123) and the fixing portion (130) positioned in the direction in which the fourth extension portion (123) extends can be spaced apart by a first distance. The wire guide portion (120) is not formed in a shape in which all sides are blocked by the outside of the filter receiving portion (110), the third extension portion (121), and the fourth extension portion (123), but rather in a shape in which a portion of the fourth extension portion (123) is open, thereby forming a space in which the wire (610) can be easily coupled. Since the wire can be inserted from the side rather than from the top or bottom into the wire guide portion (120), installation can be facilitated.

[0059] The first distance, which is the distance between the fourth extension part (123) and the fixing part (130), may be wider than the diameter of the wire passing through the wire guide part (120). For ease of wire installation, it can be spaced apart by a distance wider than the diameter of the wire. The first distance may be set to 1.1 times or more, or 1.5 times or more, the diameter of the wire (610). Or, it may be equal to or smaller than the diameter of the corresponding wire. Since the fourth extension part (123) is not fixed, when a wire with a large diameter is inserted due to the elasticity of the third extension part (121) or the fourth extension part (123), the first distance of the corresponding space may become wider, and through this, a wire with a large diameter can also be easily inserted.

[0060] The third extension part (121) and the fourth extension part (123) may be connected by a bending part (122). The bending part (122) may be bent and extended from the third extension part (121) to be connected to the fourth extension part (123).

[0061] Four wire guide parts may be formed at each corner of the filter holder (100). The third extension part (121) of each wire guide part (120) extends in both directions of two support parts (140) facing each other, and the fourth extension part (123) may be formed to be spaced apart from both sides of two fixing parts (130) facing each other by the first distance. That is, a space into which the wire (610) can be inserted is formed in the direction in which the two fixing parts (130) face each other, enabling the corresponding "seamless" wire to be inserted.

[0062] The fixing part (130) is formed between two adjacent wire guide parts among the plurality of wire guide parts (120), and a coupling hole (133) is formed inside it.

[0063] The fixing part (130) is formed on the outside of the filter receiving part (110), and may be formed between two adjacent wire guide parts (120). The fixing part (130) may serve to fix the filter holder (100) to a substrate, etc. When the wire guide parts (120) are formed at four corners, the fixing part (130) includes two fixing parts facing each other, and each fixing part (130) may be positioned at a position corresponding to two facing contact points among four contact points where the circular shape of the filter receiving part (110) and the rectangular shape of the filter holder (100) including the wire guide parts (120) meet. When the fixing part (130) has a joining hole (133) formed therein and the filter holder (100) is fixed to a substrate or a case, etc., the filter holder (100) may be screw-coupled to the substrate through a bolt (410) penetrating the joining hole (133), thereby fixing the filter holder (100) to the substrate.

[0064] The fixed portion (130) may include a first body (131) and a first coupling portion (132). The first body (131) may be formed to protrude outwardly from the outside of the filter receiving portion (110). The first body (131) may be formed to protrude outwardly from the outside of the filter receiving portion (110) to a position corresponding to the outermost edge of the fourth extension portion (123) in the first direction of the wire guide portion (120). That is, the outermost surface of the fourth extension portion (123) and the outermost surface of the first body (131) may correspond in position.

[0065] The first coupling portion (132) may extend downward from the first body (131). A coupling hole (133) penetrating the interior of the first coupling portion (132) may be formed in the first coupling portion (132). The first coupling portion (132) may extend from the lower portion of the first body (131) and may extend lower than the base (111) of the filter receiving portion (110), thereby forming a space downwardly below the bottom surface of the base (111) of the filter receiving portion (110). Through this, when a wire is wrapped around a filter (200) placed in the filter receiving portion (110), a space may be formed through which the wire may pass through the bottom surface of the base (111) of the filter receiving portion (110).

[0066] The length of the first connecting portion (132) extending from the first body (131) may be 1 / 8 to 2 / 3 of the diameter of the hole (112) at the center of the filter receiving portion (110). Alternatively, the length may be 1 / 8 to 2 / 3 of the diameter of the hole of the filter (200) located in the filter receiving portion (110). Since the wire penetrating the hole of the filter (200) must be able to pass through the lower part of the base (111) of the filter receiving portion (110), in order to secure the height of the corresponding space, the length of the first connecting portion (132) extending from the first body (131) may be 1 / 8 to 2 / 3 of the diameter of the hole (112) at the center of the filter receiving portion (110). It goes without saying that the length of the first connecting portion (132) extending from the first body (131) can be set to a different length by the user depending on the diameter or workability of the wire.

[0067] When forming a coupling hole (133) in the first coupling portion (132), the first coupling portion (132) may be formed to protrude outwardly from the filter receiving portion (110) depending on the shape of the coupling hole (133). The cross-section of the coupling hole may be formed in a circular shape, and the outer surface of the first coupling portion (132) may also protrude in a curved shape corresponding to the circular shape. The area protruding according to the shape of the coupling hole may be formed to protrude over the entire area where the coupling hole (133) of the fixing portion (130) is formed, as shown in FIG. 3.

[0068] A first joining groove (134) corresponding to the cross-sectional area of ​​the lower portion of the joining hole (133) may be included on the upper portion of the joining hole (133). As shown in Fig. 6, the joining hole (133) may not be formed to the uppermost portion of the first body (131), but may include a first joining groove (134) in the shape of a rib with a portion cut out. The cross-section of the first joining groove (134) may be a semicircular shape as shown in Fig. 5, and the diameter of the first joining groove (134) may correspond to the diameter of the cross-sectional area of ​​the lower portion of the joining hole (133). When a bolt (410) is inserted into the joining hole (133) and screwed, the bolt head portion may be seated in the first joining groove (134).

[0069] When the filter holder (100) is stacked with another filter holder, a part of the first joining portion of the other filter holder (300) may be placed in the first joining groove (134). When the filter holder (100) is stacked with another filter holder, a part of the lower part of the first joining portion of the other filter holder (300) located above may be placed in the first joining groove (134) of the filter holder (100) located below, thereby guiding the stacking position and guiding the joining holes of the two filter holders to be connected.

[0070] The support member (140) is formed between two adjacent wire guide members of the plurality of wire guide members (120) between which no fixing member (130) is formed.

[0071] The support portion (140) extends downward, so that when the filter holder (100) is coupled to a substrate or the like, the filter holder (100) can serve as a support on the upper portion of the substrate. A fixing portion (130) may be formed in a portion between two neighboring wire guide portions of the plurality of wire guide portions (120), and a support portion (140) may be formed in another portion. In the case of including four wire guide portions (120), the fixing portion (130) may be formed in two areas facing each other among the two neighboring wire guide portions of the four, and the support portion (140) may be formed in the other two areas. That is, when the wire guide portion (120) is formed at four corners, the support portion (140) includes two fixing portions facing each other, and each support portion (140) can be placed at a position corresponding to two contact points facing each other among the four contact points where the circular shape of the filter receiving portion (110) and the rectangular shape of the filter holder (100) including the wire guide portion (120) meet. The fixing portion (130) can be placed at a position corresponding to the other two contact points. When the filter holder (100) is fixed to a substrate or the like, the lower end of the support portion (140) can come into contact with the upper part of the substrate to fix the filter holder (100).

[0072] The support portion (140) may include two fifth extension portions (141), a first connection portion (142), and a sixth extension portion (143). A hook portion (114) may be formed at a position of the filter receiving portion (110) corresponding to the support portion (140). Since the hook portion (114) requires a space in which the filter (200) can be pushed back when inserted into the filter receiving portion (110), unlike the first body (131) of the fixing portion (130), it may include two fifth extension portions (141). The two fifth extension portions (141) may be formed to protrude outward from the outside of the filter receiving portion (110) corresponding to both sides of the position where the hook portions (114) of the filter receiving portion (110) are formed. The two fifth extensions (141) can be spaced apart from each other to form a space between the two fifth extensions through which the hook portion (114) can be pushed.

[0073] The first connecting portion (142) can connect the ends of two fifth extension portions (141). The first connecting portion (142) can connect the ends of two fifth extension portions (141) that are spaced apart from each other and protrude outward from the outside of the filter receiving portion (110) to form a space in which the hook portion (114) is pushed out, and the two fifth extension portions (141) can be connected and fixed. The first extension portion (151) of the wire guide portion (120) is connected to the support portion (140), so that the first connecting portion (142) can connect the ends of the two fifth extension portions (141) so as to support the first extension portion (151) of the wire guide portion (120).

[0074] The sixth extension portion (143) may extend downward from the bottom of the two fifth extension portions (141) and the first connection portion (142). The sixth extension portion (143) may be formed by extending downward from the bottom of the two fifth extension portions (141) and the first connection portion (142) so that the lower end of the support portion (140) may come into contact with a substrate or the like. The sixth extension portion (143) may extend from the bottom of the two fifth extension portions (141) and the first connection portion (142), and may have a cross-section in the shape of a 'ㄷ', as shown in FIG. 4.

[0075] The sixth extension portion (143) may be formed to have a width that becomes narrower as it extends downward from the first connection portion (142). Rather than extending the widthwise length of the sixth extension portion (143) to be the same as the widthwise length of the first connection portion (142), the sixth extension portion (143) may be formed to have a width that becomes narrower as it extends downward, as shown in Fig. 7. This allows for securing space for working with wires.

[0076] The upper portion of the first connecting portion (142) may include a second joining groove (144) corresponding to the cross-sectional area of ​​the lower portion of the sixth extension portion (143). As shown in Fig. 7, the first connecting portion (142) may not be formed to the upper portion of the two fifth extension portions (141), but may include a second joining groove (144) in the shape of a rib with a portion cut out. The length of the cross-sectional width of the second joining groove (144) may correspond to the length of the cross-sectional width of the lower portion of the sixth extension portion (143).

[0077] When the filter holder (100) is stacked with another filter holder, a part of the sixth extension of the other filter holder (300) may be placed in the second joining groove (144). When the filter holder (100) is stacked with another filter holder, a part of the lower part of the first joining portion of the other filter holder (300) located above may be placed in the first joining groove (134) of the filter holder (100) located below to guide the stacking position.

[0078] When the filter holder (100) is stacked with another filter holder (300), the hook of the filter receiving portion of the other filter holder (300) can be placed in the internal space formed by the sixth extension portion (143). The hook portion (114) can protrude upward from the side portion (113) of the filter receiving portion (110), and the hook portion of the filter holder positioned at the bottom so as to enable stacking with another filter holder can be placed in the internal space formed by the sixth extension portion (143) of the filter holder positioned at the top.

[0079] The filter holder (100) can be stacked with other filter holders (300). The number of filter holders (100) required may vary depending on the number or diameter of wires fastened to the filter (200) fastened to the filter holder (100), and in this case, the filter holders (100) may be stacked and arranged. The shapes of the stacked filter holders may be the same, and in order to increase stackability, each filter holder may include a stacked structure. The first coupling groove (134), the second coupling groove (144), and the clamping portion (150) may be structures for stacking the filter holders.

[0080] The filter holder (100) can be stacked as shown in FIGS. 8 and 9. A plurality of filter holders (100) can be stacked while each has a filter (200) mounted on it. Another filter holder (300) having another filter (220) mounted on it can be stacked on top of a filter holder (100) having a filter (210) mounted on it. When stacking, the clamping portion (350) of the other filter holder (300) comes into contact with the upper portion of the filter (210) mounted on the filter holder (100) to fix the filter (210), and a part of the first coupling portion (332) of the other filter holder (300) is arranged in the first coupling groove (134) of the filter holder (100) so that the coupling holes (133, 333) are connected as one, and can be fixed to a substrate or the like through a single bolt (410). A part of the sixth extension (343) of another filter holder (300) may be placed in the second joining groove (144) of the filter holder (100), and the hook portion (114) of the filter holder (100) may be placed in the inner space of the sixth extension (343) of the other filter holder (300). When joined through the first joining groove (134) and the second joining groove (144), a space through which a wire can pass may be formed between the filter holder (100) and the other filter holder (300), so that wiring work is possible when connecting the wire.

[0081] In this way, filter holders of the same shape can be stacked.

[0082] When stacking multiple filter holders, various stacking forms such as 4 x 1 (510), 4 x 2 (520), or 2 x 4 (530) are possible, as shown in Fig. 10. When stacking, a protruding portion is formed in the direction of the fixing portion (130) to form a joint hole for bolt connection, so that the stacking can be extended in the direction of the support portion (140) rather than the direction of contact with the fixing portion (130).

[0083] The method of attaching the wire to the filter (200) can be as follows. After the filter (200) is mounted in the filter receiving portion (110), the wire (610) is inserted from the bottom to the top of the hole (112) of the base (111), the wire (610) is inserted from the top to the bottom of the wire guide portion (120) across the top of the filter (200), and the wire (610) is inserted again from the bottom to the top of the hole (112) of the base (111) across the bottom of the base (111), i.e., the bottom of the filter (200), thereby forming the wire (610) to wrap around the filter (200). This is an example of a fastening method. The wire (610) is inserted from the bottom to the top of the wire guide part (120), the wire (610) is inserted from the top to the bottom of the hole (112) of the base (111) across the top of the filter (200), and the wire (610) is inserted again from the bottom to the top of the wire guide part (120) across the bottom of the base (111), that is, the bottom of the filter (200), thereby forming the wire (610) to wrap around the filter (200). In addition, the wire (610) can be fastened in various ways. When four wires are fastened to the filter, they can be fastened through four wire guide parts (120), respectively.

[0084] When connecting multiple wires to a filter, it may be difficult to connect all the wires with just one filter holder, depending on the diameter of the filter hole and the diameter of the wires. In this case, multiple filter holders can be stacked and used.

[0085] For example, when connecting multiple wires, if it is difficult for all the wires to pass through the holes of one filter, the wires can be connected by stacking two filter holders, as shown in Fig. 11.

[0086] When two wires (610, 620) are fastened, after the filter (210) is mounted on the filter receiving portion (110), the wire (610) is inserted upward from the bottom of the hole (112) of the base (111), the wire (610) is inserted downward from the top of the wire guide portion (120) across the top of the filter (210), and the wire (610) is inserted upward again from the bottom of the hole (112) of the base (111) across the bottom of the base (111), i.e., the bottom of the filter (210), so that the wire (610) can be formed to wrap around the filter (210). The wire (610) that wraps around the filter (210) can then be pulled out upward from the top of the wire guide portion (120) across the top of the filter (210). The other wire (620) can also be fastened in the same manner.

[0087] When fastening four wires (610 to 640) using two filter holders (100, 300), first, two wires are fastened to the filter holder (100) located at the bottom in the manner described above. The two wires fastened to the lower filter holder (100) can be pulled upward through the wire guide portion of the filter holder (300) located at the top, respectively. The other two wires (630, 640) can be fastened to wrap around the filter (220) mounted on the filter holder (300) located at the top. The wire (630) that wraps the filter (220) mounted on the filter holder (300) located at the top is inserted upward from the bottom of the wire guide part (120) of the lower filter holder (100), and the wire (630) is inserted upward from the bottom of the hole of the base across the bottom of the base of the upper filter holder (300), that is, the bottom of the filter (220), through the space between the upper filter holder (300) and the lower filter holder (100), and the wire (630) is inserted downward from the top of the wire guide part across the top of the filter (210), and the wire (630) is again inserted upward from the bottom of the hole of the base across the bottom of the base, that is, the bottom of the filter (220), so that the wire (630) can be formed to wrap the filter (220). Other wires (640) can also be fastened in the same manner.

[0088] Among the wires drawn out to the outside, two wires (610, 620) that are connected to the filter (210) of the lower filter holder (100) are drawn out through the wire guide portion, and two wires (630, 640) that are connected to the filter (220) of the upper filter holder (300) are drawn out through the hole of the filter (220), so that even if the wire diameters are large, the wires can be connected to the filter without interference with each other.

[0089] As described above, by configuring the filter holder (100), the filter is fixed to the holder, and the holder can be fixed with screws, thereby ensuring shock and vibration resistance compared to the existing free-standing state. In addition, the optimal design of the square holder for the circular filter can secure maximum wiring space, and various functional elements can be implemented in a single piece of the holder injection molding. In addition, the holders can be stacked, thereby increasing vertical space utilization, and the stacking arrangement structure can be diversified according to the arrangement environment. Furthermore, wiring work can be performed while the filter is inserted into the holder, making the work easy and minimizing the volume after assembly.

[0090] An inverter module according to an embodiment of the present invention may include an inductor module (750), a heat sink or case (740), a substrate (710), and a filter holder (100).

[0091] An inverter module according to an embodiment of the present invention 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 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.

[0092] The inductor module (750) may be configured as a separate module for efficient heat dissipation, and the inductor module (750) may be coupled to the inverter module through a case (740). The inductor module (750) may be connected to components of a power conversion unit arranged in the internal space of the inverter module via wires, and at this time, the wires may be connected through a filter holder (100) fixed to the substrate (710). When the wires connected to the inductor module (750) are connected to the substrate (710) through the filter holder (100), they may be connected in a top-down manner or a bottom-up manner.

[0093] As shown in Fig. 12, the substrate (710) of the inverter module is spaced apart from the case (740) via a spacer (730), and a wire drawn from the inductor module (750) can be fastened to the filter holder (100) from the upper side of the filter holder (100) and connected to a connector (720) placed on the substrate (710). At this time, the fixing part (130) and the support part (140) can be fastened and supported to the substrate (710) via the spacer (730) placed on the upper side of the substrate (710). The wire (760) is fastened to the filter holder (100) from the upper side of the filter holder (100), which can be referred to as a top-down method.

[0094] Alternatively, as shown in FIG. 13, a wire (760) drawn from an inductor module (750) may be connected to the filter holder (100) from the lower side thereof, and a wire (760) drawn from the upper side of the filter holder (100) may be connected to a connector (720) placed on a substrate (710). At this time, the fixing member (130) and the support member (140) may be fixed and supported to the case (740). Since the wire is connected to the filter holder (100) from the lower side thereof, this may be referred to as a bottom-up method. Of course, other methods may also be used for connection.

[0095] Through this, the wire is wound around the filter once and then passes through it, thereby enabling EMI blocking from the wire to the power conversion unit placed inside the case (740) of the inverter module.

[0096] 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.

[0097] 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. A filter receptacle that accommodates a filter; A plurality of wire guide portions formed on the outside of the filter receiving portion; At least one fixing member formed between two adjacent wire guide members among the plurality of wire guide members and having a joining hole formed therein; and A filter holder including at least one support portion extending downward, formed between two adjacent wire guide portions of the plurality of wire guide portions, wherein the fixing portion is not formed between the two wire guide portions.

2. In paragraph 1, The above filter receptacle is, A base containing a hole in the center; a side portion extending upward from the base; and Including a hook portion formed in the area of ​​the side portion corresponding to the support portion, A filter holder in which the filter is placed in an internal space formed by the base and the side portion, and is hooked together through the hook portion.

3. In paragraph 2, A filter holder comprising two hook portions facing each other, wherein the hook portion is above.

4. In paragraph 2, comprising at least one clamping portion extending downward from an area of ​​the base corresponding to the position of the fixed portion; The above clamping part, A first extension portion extending in a direction inclined toward the center of the filter receiving portion from the base; and A filter holder comprising a second extension portion extending from the first extension portion in a direction parallel to the base.

5. In paragraph 4, The above clamping part, A filter holder arranged 90 degrees apart from the hook portion based on the center of the filter receiving portion.

6. In paragraph 4, When the above filter holder is stacked with another filter holder, The above clamping portion is a filter holder that comes into contact with the upper part of a filter fastened to the other filter holder.

7. In paragraph 1, The above wire guide part, a third extension extending in the first direction from the support; and A fourth extension portion extending from the third extension portion in a second direction perpendicular to the first direction is included, The above fourth extension portion is a filter holder extending in a direction toward the above fixed portion.

8. In paragraph 7, A filter holder in which the fourth extension portion and the fixing portion positioned in the direction in which the fourth extension portion extends are spaced apart by a first distance.

9. In paragraph 1, The above fixed part, A first body protruding outward from the outside of the filter receiving portion; and It includes a first connecting portion extending downward from the first body, A filter holder in which the above-mentioned joining hole is formed penetrating the interior of the above-mentioned first joining part.

10. In paragraph 1, The above support part, Two fifth extensions protruding outward from the outside of the filter receiving portion corresponding to both sides of the position where the hook portion of the filter receiving portion is formed; Connecting the ends of the two fifth extensions to form a first connecting portion; and A filter holder comprising the two fifth extensions and a sixth extension extending from the lower portion of the first connecting portion.

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