Integrated noise filter

Abstract

An integrated noise filter according to an embodiment of the present invention comprises: at least one busbar unit that transmits power and electrical signals; a case unit that accommodates and covers at least a portion of the at least one busbar unit; at least one core unit that covers a portion of the outer surface of the at least one busbar unit and provides inductance to the at least one busbar unit; and a plurality of power storage units that are electrically connected to at least a portion of the at least one busbar unit and provide capacitance to the at least one busbar unit.

Description

Integrated noise filter

[0001] The present invention relates to an integrated noise filter, and more particularly, to an integrated noise filter that removes electromagnetic interference (EMI) and is integrated with a connector.

[0002] In order to improve the quality of power supplied to electronic devices and ensure stable operation of the devices, the importance of filters to remove or minimize electromagnetic interference (EMI) noise is continuously increasing.

[0003] In particular, in the mobility sector, hybrid vehicles (HEVs), plug-in hybrid vehicles (PHEVs), electric vehicles (EVs), and fuel cell vehicles (FCEVs) are attracting attention as future eco-friendly vehicles that will replace fossil fuel-powered vehicles.

[0004] Various types of power conversion devices are used in electric vehicles, which are currently being actively commercialized. For example, an on-board charger (OBC) can be used to charge a high-voltage battery from an external source. Another example is a low-voltage DC-DC converter (LDC) to convert power from a high-voltage battery to a low-voltage battery (e.g., a 12V low-voltage battery).

[0005] During the process of charging a high-voltage battery from the outside or converting power from a high-voltage battery to a low-voltage battery, electromagnetic interference noise may be generated, maintained, and amplified. Such electromagnetic interference noise may affect power transmission and supply, and may cause malfunctions in loads that receive power (e.g., headlights, wipers, ECUs, etc. that are driven by power supplied from a low-voltage battery).

[0006] To address these issues, conventional technology has separately equipped and connected connectors, differential mode filters (DM filters), and common mode filters (CM filters) to eliminate incoming or outgoing electromagnetic interference noise. However, due to the high current, the connectors, differential mode filters, and common mode filters are connected using busbars, which increases the likelihood of power loss and noise at the connection points.

[0007] In addition, a filter structure that removes electromagnetic interference noise (e.g., common mode noise) by using a frame ground (FG) rather than a differential mode filter has been proposed, but there is a continuous demand for a filter structure that enables more effective noise removal.

[0008] Additionally, there is a growing need for an integrated noise filter that can efficiently remove differential mode and common mode electromagnetic interference noise that may occur during the process of power and / or signals traveling through the busbar.

[0009] To address the above-described problems, the disclosed embodiment of the present invention provides an integrated noise filter capable of minimizing both differential mode electromagnetic interference noise and common mode electromagnetic interference noise introduced from outside or generated from equipment.

[0010] In addition, the disclosed embodiment of the present invention provides an integrated noise filter capable of stably minimizing noise while having a simplified assembly structure.

[0011] In addition, the disclosed embodiment of the present invention provides an integrated noise filter that is integrated and miniaturized, thereby improving assembly and stability and miniaturizing the overall power conversion device.

[0012] Additionally, an embodiment of the present invention provides an integrated noise filter optimized for electromagnetic interference noise by customizing it according to the specifications of the target product.

[0013] The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0014] In order to solve the above-mentioned problem, an integrated noise filter according to a disclosed embodiment of the present invention includes at least one busbar unit for transmitting power and an electric signal, a case unit for accommodating and covering at least a portion of the at least one busbar unit, at least one core unit for covering a portion of an outer surface of the at least one busbar unit and imparting inductance to the at least one busbar unit, and a plurality of capacitor units for electrically connecting to at least a portion of the at least one busbar unit and imparting capacitance to the at least one busbar unit.

[0015] Additionally, the at least one busbar unit may include a first input / output terminal electrically connected to the outside, and a second input / output terminal formed opposite the first input / output terminal and electrically connected to a load.

[0016] Additionally, the first input / output terminal may be formed to be exposed toward a first direction of the case unit, and at least a portion of the second input / output terminal may be formed to be exposed toward a second direction that is perpendicular to the first direction of the case unit.

[0017] In addition, the first input / output terminal may be formed to be exposed toward the second direction of the case unit, and at least a portion of the second input / output terminal may be formed to face the first input / output terminal and be exposed toward the second direction.

[0018]

[0019] *In addition, in a state where at least a part of the at least one busbar unit is accommodated in the case unit, the first input / output terminal may be formed so that one side is exposed to the outside, and the second input / output terminal may be formed so that both sides are exposed to the outside.

[0020] In addition, the at least one busbar unit includes a plurality of busbar units, and the plurality of busbar units include a first busbar unit arranged longitudinally along a second direction, and a second busbar unit arranged longitudinally along the second direction parallel to the first busbar unit and spaced apart from the first busbar unit by a predetermined busbar spacing distance, and the busbar spacing distance can be formed to be smaller than the widthwise lengths of the first busbar unit and the second busbar unit.

[0021] In addition, the at least one core unit is formed to be biased toward the first input / output terminal based on a portion of the second input / output terminal of the at least one busbar unit exposed from the case unit, and the inner surface of the at least one core unit covers at least a portion of the outer surface of the second input / output terminal of the at least one busbar unit to provide inductance to the at least one busbar unit.

[0022] In addition, the at least one busbar unit includes a plurality of busbar units, and the at least one core unit is formed to be biased toward the first input / output terminal based on a portion of the second input / output terminals of the plurality of busbar units exposed from the case unit, and the inner circumference of the at least one core unit covers at least a portion of the outer circumference of the second input / output terminals of the plurality of busbar units to impart inductance to each of the plurality of busbar units, and the cross-sectional center of the at least one core unit is disposed at the widthwise center of the busbar units disposed on both widthwise sides among the plurality of busbar units, and the magnitude of the inductance imparted by the at least one core unit to each of the plurality of busbar units may be the same.

[0023] In addition, the case unit may include at least one first-side busbar unit receiving portion that is formed with an opening in at least one direction among a first direction and a second direction perpendicular to the first direction to receive the first input / output terminal of the at least one busbar unit, and at least one second-side busbar unit receiving portion that is formed with an opening in the second direction to receive the second input / output terminal of the at least one busbar unit.

[0024] In addition, the at least one busbar unit includes a plurality of busbar units, the at least one first-side busbar unit receiving portion includes a plurality of first-side busbar unit receiving portions, the at least one second-side busbar unit receiving portion includes a plurality of second-side busbar unit receiving portions, and the plurality of first-side busbar unit receiving portions include a first-side first busbar unit receiving portion that receives the first input / output terminal of a first busbar unit among the plurality of busbar units, and a first-side second busbar unit receiving portion that receives the first input / output terminal of a second busbar unit among the plurality of busbar units, and the first-side first busbar unit receiving portion and the first-side second busbar unit receiving portion can be opened to be spaced apart from each other by a predetermined distance in the width direction.

[0025] In addition, the integrated noise filter according to the disclosed embodiment of the present invention further includes a grounding unit electrically connected to at least a portion of the at least one busbar unit to form a ground, and the grounding unit can be electrically connected through at least a portion of the plurality of storage units on the first input / output terminal side of the at least one busbar unit to form a grounding path.

[0026] In addition, the case unit may further include at least one storage unit receiving portion that is formed with an opening in a direction corresponding to the same axis as the at least one first-side bus bar unit receiving portion or the same axis as the at least one second-side bus bar unit receiving portion, in order to receive the plurality of storage units.

[0027] In addition, the at least one storage unit receiving portion may include a plurality of storage unit receiving portions, and the plurality of storage unit receiving portions may correspond to the same axis as the at least one first-side busbar unit receiving portion, may be formed with an opening in a direction opposite to the at least one first-side busbar unit receiving portion, and may be formed with an opening in a direction corresponding to a different axis from the at least one second-side busbar unit receiving portion, in order to receive the plurality of storage units.

[0028] Additionally, the plurality of storage units may include a plurality of first type storage units, one end of which is electrically connected to at least one bus bar unit and the other end of which is electrically connected to the ground unit to form the ground path, and which minimize common mode noise.

[0029] In addition, the at least one busbar unit may include a plurality of busbar units, and the plurality of storage units may include a plurality of first type storage units having one end electrically connected to at least one of the plurality of busbar units and the other end electrically connected to the grounding unit to form the grounding path and minimize common mode noise, and at least one second type storage unit disposed between the plurality of first type storage units and having both ends electrically connected to at least some of the plurality of busbar units to minimize differential mode noise.

[0030] In addition, at least one of the plurality of first type capacitor units may be aligned along a second direction by being coupled with a capacitor connection unit extension portion formed to extend in the width direction among capacitor connection units coupled with at least one of the plurality of busbar units and a grounding unit-side capacitor connection portion formed to extend in the width direction among the grounding units, and the second type capacitor unit may be aligned along a third direction perpendicular to the second direction by being coupled with the capacitor connection unit extension portion of the capacitor connection unit.

[0031] In addition, the case unit further includes a grounding unit receiving portion that is formed with an opening on one side or the other side corresponding to the same axis as the second side bus bar unit receiving portion that receives the second input / output terminal of the at least one bus bar unit and receives the grounding unit, and a ground surface of the grounding unit received in the grounding unit receiving portion can contact an outer surface of a load connected by the plurality of bus bar units to form a frame ground.

[0032] According to the proposed embodiment, there is an advantage in that bidirectional input / output noise is reduced by minimizing electromagnetic interference noise coming from the outside or generated from equipment through an integrated noise filter according to the disclosed embodiment of the present invention.

[0033] In particular, there is an advantage in that the power conversion efficiency of the integrated noise filter is maximized by minimizing both differential mode electromagnetic interference noise and common mode electromagnetic interference noise.

[0034] In addition, the integrated noise filter according to the disclosed embodiment of the present invention has the advantage of having a simplified assembly structure while stably minimizing noise.

[0035] In addition, through the integrated noise filter according to the disclosed embodiment of the present invention, a power conversion device including the integrated noise filter can be miniaturized while reducing manufacturing costs, and an electronic product including the power conversion device can also be miniaturized and have a reduced manufacturing cost.

[0036] In addition, there is an advantage in that the integrated noise filter according to the disclosed embodiment of the present invention can efficiently reduce electromagnetic interference noise by customizing the inductance and / or capacitance according to the specifications of the target product.

[0037] FIG. 1 is a diagram illustrating a state in which an integrated noise filter according to the disclosed first embodiment of the present invention is coupled to a product (e.g., a load, etc.).

[0038] FIG. 2 is a perspective view of an integrated noise filter according to the first disclosed embodiment of the present invention.

[0039] FIG. 3 is an exploded perspective view of an integrated noise filter according to the first disclosed embodiment of the present invention.

[0040] FIG. 4 is a top view of an integrated noise filter according to the first disclosed embodiment of the present invention.

[0041] FIG. 5 is a bottom view of an integrated noise filter according to the first disclosed embodiment of the present invention.

[0042] FIG. 4 is a front view of an integrated noise filter according to the first disclosed embodiment of the present invention.

[0043] FIG. 7 is a circuit diagram showing the configuration of elements between the first input / output terminal and the second input / output terminal in an integrated noise filter according to the disclosed first embodiment of the present invention.

[0044] FIG. 8 is a perspective view of an integrated noise filter according to a second embodiment of the present invention.

[0045] FIG. 9 is an exploded perspective view of an integrated noise filter according to the disclosed second embodiment of the present invention.

[0046] FIG. 10 is a perspective view of an integrated noise filter according to a third embodiment of the present invention.

[0047] Fig. 11 is an exploded perspective view of an integrated noise filter according to the disclosed third embodiment of the present invention.

[0048] FIG. 12 is a perspective view of an integrated noise filter according to the fourth disclosed embodiment of the present invention.

[0049] Fig. 13 is an exploded perspective view of an integrated noise filter according to the fourth embodiment disclosed in the present invention.

[0050] [Explanation of symbols]

[0051] 1, 2, 3, 4: Integrated noise filter

[0052] 100: Busbar unit 100a: First busbar unit

[0053] 100b: Second busbar unit 200: Case unit

[0054] 300: Core Unit 400: Multiple Storage Units

[0055] 410: Multiple Type 1 storage units 420: Type 2 storage units

[0056] 500: Grounding unit 600: First input / output terminal connection unit

[0057] 700: Capacitor connection unit 800: Elastic member

[0058] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined solely by the scope of the claims.

[0059] Although terms like "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it should be understood that the "first" component referred to below may also be a "second" component within the technical scope of the present invention.

[0060] Identical reference numerals throughout the specification refer to identical components.

[0061] The individual features of the various embodiments of the present invention can be partially or wholly combined or combined with each other, and as can be fully understood by those skilled in the art, various technical connections and operations are possible, and each embodiment can be implemented independently of each other or can be implemented together in a related relationship.

[0062] Meanwhile, the tentative effects that can be expected by the technical features of the present invention that are not specifically mentioned in the specification of the present invention are treated as described in the specification, and the present embodiment is provided to more completely explain the present invention to a person having average knowledge in the art, and the contents shown in the drawings may be expressed exaggeratedly compared to the actual implementation of the invention, and a detailed description of a configuration that is judged to unnecessarily obscure the gist of the present invention is omitted or briefly described.

[0063] In addition, when describing an integrated noise filter according to the disclosed embodiments of the present invention, two or more reference numerals may be referred to together or separately when referring to one configuration. For example, a plurality of busbar units (reference numeral 100), which are one configuration of an integrated noise filter according to the disclosed embodiment of the present invention, may be used to collectively refer to a first busbar unit (reference numeral 100a) and a second busbar unit (reference numeral 100b). That is, when referring to a plurality of busbar units (reference numeral 100), even if reference numerals 100a and 100b are not separately indicated, it should be understood to encompass the first busbar unit (reference numeral 100a) and the second busbar unit (reference numeral 100b).

[0064] Additionally, it should be understood that the integrated noise filter according to the disclosed embodiments of the present invention may have one busbar unit or may have multiple busbar units as needed, as described below.

[0065] Hereinafter, the disclosed embodiments of the present invention will be described in detail with reference to the attached drawings.

[0066]

[0067] FIG. 1 is a diagram for explaining a state in which an integrated noise filter (1) according to the disclosed first embodiment of the present invention is coupled to a product (e.g., a load (1000), etc.).

[0068] Referring to Fig. 1, an integrated noise filter (1) according to the first embodiment disclosed in the present invention can be connected and coupled to one side of a product or load (1000). In Fig. 1, the load (1000) is schematically represented, but may be a component that receives power. For example, the product may be an electronic product that can receive power through the integrated noise filter (1) according to the first embodiment disclosed in the present invention, or may mean the load (1000) itself. In this case, the load (1000) may be at least one of electric vehicle components such as a headlight, a wiper, and an ECU that receive power from a low-power battery of the electric vehicle.

[0069] The integrated noise filter (1) according to the disclosed first embodiment of the present invention can perform the function of a filter that filters noise. In addition, the integrated noise filter (1) according to the disclosed first embodiment of the present invention can also simultaneously perform the function of a connector that connects between any load(s) and other load(s), connects between a high-voltage battery and a low-voltage battery, or connects between a low-voltage battery and load(s). That is, the integrated noise filter (1) according to the disclosed first embodiment of the present invention can be understood as a noise filter and a connector integrated.

[0070]

[0071] Below, detailed components of the integrated noise filter (1) according to the disclosed first embodiment of the present invention are described in detail.

[0072] FIG. 2 is a perspective view of an integrated noise filter (1) according to the first disclosed embodiment of the present invention, and FIG. 3 is an exploded perspective view of an integrated noise filter (1) according to the first disclosed embodiment of the present invention.

[0073] Referring to FIGS. 2 and 3, an integrated noise filter (1) according to the disclosed first embodiment of the present invention may include a plurality of busbar units (100). Each of the plurality of busbar units (100) may be formed of an electrically conductive material and may serve to transmit power and an electrical signal. The plurality of busbar units (100) may transmit power in one direction or two directions to supply electrical energy to a load requiring power, and may transmit an electrical signal in one direction or two directions to cause a specific component to operate and / or be controlled. For example, the plurality of busbar units (100) may be copper-plated, but the forming material or forming method (plating, alloy, etc.) of the plurality of busbar units (100) is not limited to the examples described above.

[0074] Each of the two ends of the plurality of busbar units (100) may be electrically connected to the outside and / or a load. However, if the plurality of busbar units (100) are entirely exposed, the plurality of busbar units (100) may be affected by the external environment (e.g., impedance change), and noise generation, noise amplification, signal distortion, and power loss may occur. In order to minimize the influence of the external environment, the integrated noise filter (1) according to the first embodiment disclosed in the present invention may include a case unit (200). The case unit (200) may accommodate and cover at least a portion of the plurality of busbar units (100). For example, the case unit (200) may accommodate and cover the remaining portions of each of the plurality of busbar units (100) except for a portion of both ends. Accordingly, the case unit (200) may minimize the influence of the plurality of busbar units (100) from the external environment. The detailed structure of the case unit (200) will be described later.

[0075] Meanwhile, in order to remove noise from the power, signal, and / or radiated noise transmitted by the busbar units (100), a predetermined inductance (L) may be applied to the plurality of busbar units (100). The integrated noise filter (1) according to the first embodiment disclosed in the present invention may include at least one core unit (300), and the at least one core unit (300) may cover a portion of an outer surface of the plurality of busbar units (100) and may impart inductance to each of the plurality of busbar units (100). The at least one core unit (300) may have a ring shape (for example, a ring shape having an elliptical cross-section), and at least a portion of the plurality of busbar units (100) may penetrate the interior of a communication hole formed in communication with the at least one core unit (300).

[0076] For example, at least one core unit (300) may be a magnetic material having an electromagnetic force, and power, signals, and radiation noise transmitted through the plurality of busbar units (100) may be reduced by the electromagnetic force applied by the at least one core unit (300) to each of the plurality of busbar units (100). The at least one core unit (300) may include a composition of at least one of manganese-zinc soft ferrite, nickel-zinc soft ferrite, an iron-based amorphous alloy, and an iron-based amorphous alloy. By using at least one core unit (300) having such a composition, a predetermined inductance can be efficiently provided to the plurality of busbar units (or at least one busbar unit described below).

[0077] At least one core unit (300) may be included in the integrated noise filter (1) so as to cover all of the aforementioned plurality of busbar units (100) at once. However, if necessary, at least one core unit (300) may be provided in a number corresponding to the plurality of busbar units (100) in order to apply an inductance (L) to each of the plurality of busbar units (100). For example, a first core unit (reference numeral 310 of FIG. 9) for applying a predetermined inductance to a first busbar unit (100a) and a second core unit (reference numeral 320 of FIG. 9) for applying a predetermined inductance to a second busbar unit may be provided and arranged. In this way, when at least one core unit (300) is provided in a number corresponding to each of the plurality of busbar units (100) and corresponds one-to-one with each of the plurality of busbar units (100), any one core unit can be prevented from applying inductance to a busbar unit that is not corresponded one-to-one, and each of the plurality of busbar units (100) can receive a predetermined inductance (L) by the corresponding core unit. Meanwhile, a structure including a core unit corresponding to each of the plurality of busbar units (100) will be described in the integrated noise filter (2) according to another embodiment.

[0078] In addition, in order to remove noise from the power and signal transmitted by the plurality of busbar units (100), a predetermined capacitance (C) may be applied to at least some of the plurality of busbar units (100). The integrated noise filter (1) according to the first embodiment disclosed in the present invention may include a plurality of storage units (400), and the plurality of storage units (400) may be electrically connected to at least some of the plurality of busbar units (100) and may provide the capacitance (C) to the plurality of busbar units (100). For example, at least some of the plurality of storage units (400) may be Y capacitors for an EMC filter. As another example, the remaining some of the plurality of storage units may be X capacitors for an EMC filter. However, the type of capacitor is not necessarily limited to the examples disclosed in the present invention. Power noise, signal noise, and radiation noise transmitted through the plurality of busbar units (100) can be reduced by the capacitance (C) provided by the plurality of storage units (400) to at least some of the plurality of busbar units (100).

[0079]

[0080] Below, the detailed structure of the integrated noise filter (1) according to the disclosed first embodiment of the present invention is described.

[0081] FIG. 4 is a top view of an integrated noise filter (1) according to a first embodiment of the present invention, FIG. 5 is a bottom view of an integrated noise filter (1) according to a first embodiment of the present invention, and FIG. 6 is a front view of an integrated noise filter (1) according to a first embodiment of the present invention.

[0082] Referring to FIGS. 2 to 6 (particularly FIGS. 2 to 4), each of a plurality of busbar units (100), which are a component of an integrated noise filter (1) according to the disclosed first embodiment of the present invention, may include a busbar body (110). The busbar body (110) may serve to transmit power and / or signals. Both ends of the busbar body (110) may be connected to a component that supplies power (e.g., a low-power battery) and a load, respectively.

[0083] More specifically, each of the plurality of busbar units (100), which are a component of the integrated noise filter (1) according to the disclosed first embodiment of the present invention, may include a first input / output terminal (111) and a second input / output terminal (112), and the first input / output terminal (111) and the second input / output terminal (112) may constitute both ends of the busbar body (110) among the plurality of busbar units (100).

[0084] At this time, the first input / output terminal (111) can be electrically connected to the outside, and the second input / output terminal (112) can be electrically connected to the load. To achieve this connection, the second input / output terminal (112) can be formed opposite the first input / output terminal (111). Power and signals can be transmitted in one direction or two directions through the first input / output terminal (111) and the second input / output terminal (112), and thus, operation according to power supply and control signal transmission to the load is possible.

[0085] If necessary, each of the plurality of busbar units (100) may further include a busbar bending portion (113). The busbar bending portion (113) may form a step between the first input / output terminal (111) and the second input / output terminal (112). The busbar bending portion (113) may be formed so as not to excessively deform the electrical characteristics of the busbar unit (110) and to prevent mechanical defects from occurring, and the bending angle at which the busbar bending portion (113) is bent may be an acute angle or a right angle.

[0086] More specifically, in the integrated noise filter (1) according to the disclosed first embodiment of the present invention, each of the plurality of busbar units (100) may have a structure that is bent at least once by the busbar bending portion (113). For example, each of the plurality of busbar units (100) may have a structure that is bent twice by the busbar bending portion (113). Accordingly, the surface direction of the first input / output terminal (111) and the surface direction of the second input / output terminal (112) of each of the plurality of busbar units (100) may be formed parallel. The bending structure of the plurality of busbar units (100) and the busbar body (110) by the busbar bending portion (113) has the advantage of being able to shorten the length in the longitudinal direction (for example, the direction corresponding to the x-axis for each of the plurality of busbar units (100) illustrated in FIGS. 2 and 3) of the integrated noise filter (1) according to the disclosed embodiment of the present invention, and miniaturizing the integrated noise filter (1).

[0087] Meanwhile, the busbar bending portion (113) may be formed at a position closer to the first input / output terminal (111) in the busbar body (110). For example, the first bending distance from the busbar bending portion (113) to the end of the first input / output terminal (111) may be formed shorter than the second bending distance from the busbar bending portion (113) to the end of the second input / output terminal. In this case, the first bending distance may mean the horizontal distance from the busbar bending portion (113) to the end of the first input / output terminal (111), and the second bending distance may mean the horizontal distance from the busbar bending portion (113) to the end of the second input / output terminal (112). Accordingly, since each of the first input / output terminal (111) and the second input / output terminal (112) is exposed to a predetermined area or a predetermined length from the case unit (200), there is an advantage in that it can be stably electrically connected to the outside and the load.

[0088] As described above, since the first input / output terminal (111) and the second input / output terminal (112) are formed to have a predetermined step by the busbar bending portion (113), the first input / output terminal (111) and the second input / output terminal (112) can be formed to be exposed in different directions with respect to the case unit (200) described later. For example, the first input / output terminal (111) of the plurality of busbar units (100) can be formed to be exposed in a first direction of the case unit (200) (for example, a direction corresponding to the z-axis in FIGS. 2 and 3), and at least a portion of the second input / output terminals (112) of the plurality of busbar units (100) can be formed to be exposed in a second direction perpendicular to the first direction of the case unit (200) (for example, a direction corresponding to the x-axis in FIGS. 2 and 3, and more specifically, a positive x-axis direction). Accordingly, the external (device) electrically connected to the first input / output terminal (111) and the load electrically connected to the second input / output terminal (112) may not be arranged in parallel on the same axis, and there is an advantage that an integrated arrangement structure of the entire device using the integrated noise filter (1) according to the disclosed embodiment of the present invention can be implemented.

[0089] In addition, in a state where at least one busbar unit (100) or at least a portion of each of a plurality of busbar units (100) are accommodated in the case unit (200), the first input / output terminal (111) may be formed so that one side (e.g., the upper side) is exposed to the outside, and the second input / output terminal (112) may be formed so that both sides (e.g., the upper side and the lower side) are exposed to the outside. By the externally exposed structure of the first input / output terminal (111) and the second input / output terminal (112), there is an advantage in that at least one busbar unit (100) can form a stable electrical connection structure with a load (1000) and / or a component that supplies power (such as a battery).

[0090] In the integrated noise filter (1) according to the disclosed first embodiment of the present invention, the plurality of busbar units (100) may include a first busbar unit (100a) and a second busbar unit (100b). The first busbar unit (100a) may include a first input / output terminal (111a), a second input / output terminal (112a), and a busbar bending portion (113a) in the busbar body (110a), and the second busbar unit (100b) may also include a first input / output terminal (111b), a second input / output terminal (112b), and a busbar bending portion (113b) in the busbar body (110b).

[0091] The first busbar unit (100a) may be arranged longitudinally along the second direction (the direction corresponding to the x-axis). In addition, the second busbar unit (100b) may be arranged longitudinally along the second direction, and the second busbar unit (100b) may be arranged parallel to the first busbar unit. That is, the first busbar unit (100a) and the second busbar unit (100b) may be arranged parallel to each other along their respective width directions (for example, the direction corresponding to the y-axis).

[0092] At this time, the second busbar unit (100b) may be formed to be spaced apart from the first busbar unit (100a) by a predetermined busbar separation distance (d). Since the first busbar unit (100a) and the second busbar unit (100b) are formed to be spaced apart from each other by a predetermined busbar separation distance (d), electrical short circuits or interference between the plurality of busbar units (100) may be reduced. The busbar separation distance (d) may be a distance that can minimize the influence between the plurality of busbar units (100) while minimizing the volume of the overall integrated noise filter (1). For example, the busbar separation distance (d) may be formed to be smaller than the widthwise length of each of the first busbar unit (100a) and the second busbar unit (100b). Since the busbar separation distance (d) is formed to be smaller than the widthwise length of each of the first busbar unit (100a) and the second busbar unit (100b), there is an advantage in that the widthwise length of the integrated noise filter (1) can be minimized while also minimizing interference between multiple busbar units (100).

[0093] For convenience of explanation, the integrated noise filter (1) according to the disclosed first embodiment of the present invention is illustrated and described as having two busbar units (100a, 100b), but the number of busbar units (100a, 100b) is not limited to two. That is, a plurality of busbar units (100) may be designed to be two or more as needed. In addition, at least some of the integrated noise filters (2, 3, 4) according to other disclosed embodiments of the present invention may have at least one busbar unit (100). That is, it should be understood that at least some of the integrated noise filters (1, 2, 3, 4) according to the disclosed embodiments of the present invention include a structure having one busbar unit (100).

[0094] As such, since the integrated noise filter (1) according to the disclosed first embodiment of the present invention includes a plurality of busbar units (100), the bandwidth of power or the type of signal that can be transmitted through the plurality of busbar units (100) can be increased. By transmitting a plurality of signals through different busbar units (100a, 100b), there is an advantage of enabling multi-operation of a load (reference numeral 1000 in FIG. 1) electrically connected to the second input / output terminals (112) of the plurality of busbar units (100).

[0095]

[0096] Below, the detailed structure of the case unit (200) is described.

[0097] Referring to FIGS. 2 to 6, a case unit (200), which is a component of an integrated noise filter (1) according to the disclosed first embodiment of the present invention, can protect at least a portion of a plurality of busbar units (100), at least one core unit (300), and a plurality of storage units (400) from an external environment.

[0098] More specifically, the case unit (200) may include a plurality of first-side busbar unit receiving portions (210) that receive the first input / output terminals (111) of each of the plurality of busbar units (100) to protect the plurality of busbar units (100) from the external environment, and a plurality of second-side busbar unit receiving portions (220) that receive the second input / output terminals (112) of each of the plurality of busbar units (100). If necessary, the plurality of first-side busbar unit receiving portions (210) and the plurality of second-side busbar unit receiving portions (220) may be formed so that the first input / output terminals (111) and the second input / output terminals (112) of each of the plurality of busbar units (100) can be easily connected to a power source or a load.

[0099] Each of the plurality of first-side busbar unit receiving portions (210) and the plurality of second-side busbar unit receiving portions (220) may be formed with openings in directions corresponding to different axes. For example, the plurality of first-side busbar unit receiving portions (210) may be formed with openings in the first direction or the upper direction (e.g., the positive z-axis direction) to receive the first input / output terminals (111) of each of the plurality of busbar units (100). At this time, one surface (e.g., the upper surface) of the first input / output terminal (111) may be exposed to the outside, and may be connected to another device (power source or load) through the exposed portion of the first input / output terminal (111). As another example, a plurality of second side bus bar unit receiving portions (220) may be formed with openings in a second direction perpendicular to the first direction, or in a horizontal direction (e.g., the positive x-axis direction) to receive the second input / output terminals (112) of each of the plurality of bus bar units (100). At this time, both ends of the second input / output terminals (112) may be exposed to the outside, and may be connected to another device (power source or load) through the exposed portion of the second input / output terminal (112).

[0100] Each of the plurality of first-side busbar unit receiving portions (210) may be provided to receive each of the plurality of busbar units (100). More specifically, the plurality of first-side busbar unit receiving portions (210) may include a first-side first busbar unit receiving portion (210a). The first-side first busbar unit receiving portion (210a) may receive a first input / output terminal (111a) of a first busbar unit (100a) among the plurality of busbar units (100). In addition, the plurality of first-side busbar unit receiving portions (210) may include a first-side second busbar unit receiving portion (210b). The first-side second busbar unit receiving portion (210b) may receive a first input / output terminal (111b) of a second busbar unit (100b) among the plurality of busbar units (100). At this time, the first side first busbar unit receiving portion (210a) and the first side second busbar unit receiving portion (210b) may be spaced apart from each other by a predetermined gap in the width direction and may be formed as an opening. For example, the first side first busbar unit receiving portion (210a) and the first side second busbar unit receiving portion (210b) may be formed spaced apart from each other by a predetermined busbar spacing distance (d). That is, the first busbar unit (100a) and the second busbar unit (100b) may be spaced apart from each other by the first side first busbar unit receiving portion (210a) and the first side second busbar unit receiving portion (210b), and there is an advantage in that the integrated noise filter (1) according to the disclosed first embodiment of the present invention can be miniaturized while minimizing electrical interference between a plurality of busbar units (100).

[0101] In the same spirit, the plurality of second-side busbar unit receiving portions (220) may also include a second-side first busbar unit receiving portion (220a) for receiving the second input / output terminal (112a) of the first busbar unit (100a), and a second-side second busbar unit receiving portion (220b) for receiving the second input / output terminal (112b) of the second busbar unit (100b). By means of the second side first busbar unit receiving portion (220a) and the second side second busbar unit receiving portion (220b), the second input / output terminals (112a, 112b) of each of the first busbar unit (100a) and the second busbar unit (100b) can also be formed to be spaced apart by a predetermined busbar spacing distance (d), and there is an advantage in that the integrated noise filter (1) according to the disclosed embodiment of the present invention can be miniaturized while minimizing electrical interference between a plurality of busbar units (100).

[0102] In addition, the case unit (200) may include a core unit receiving portion (230). For example, the core unit receiving portion (230) of the case unit (200) may receive at least one core unit (300) such that the center of the at least one core unit (300) corresponds to the axial center between the plurality of busbar units (100). By the core unit receiving portion (230), the at least one core unit (300) may be aligned to be arranged coaxially with the axial center between the plurality of busbar units (100). A detailed arrangement relationship between the at least one core unit (300) and the plurality of busbar units (100) will be described later.

[0103] Meanwhile, the core unit receiving portion (230) may be formed with an opening in a direction corresponding to the same axis as the plurality of second-side bus bar unit receiving portions (220). That is, the core unit receiving portion (230) may be formed with an opening in the second direction or the horizontal direction (for example, the positive x-axis direction) and may receive at least one core unit (300). Thereafter, the at least one core unit (300) may be molded to be protected from the external environment. For example, the at least one core unit (300) may be molded through a core molding member (920 of FIG. 9). The at least one core unit (300) may be epoxy molded through the core molding member (920 of FIG. 9), but is not necessarily limited to the materials listed.

[0104] In addition, the case unit (200) may further include a plurality of storage unit receiving portions (240). Each of the plurality of storage unit receiving portions (240) may receive a respective one of the plurality of storage units (400). For example, at least some of the plurality of storage unit receiving portions (240) may be formed in at least one pair so as to face each other with respect to the center of the case unit (200). As another example, at least one of the remaining some of the plurality of storage unit receiving portions (240) may be formed at the center of the case unit (200).

[0105] More specifically, the plurality of storage unit receiving portions (240) may include a first type storage unit receiving portion (241) for receiving each of the first type storage units (410) among the plurality of storage units (400), and a second type storage unit receiving portion (242) for receiving at least one second type storage unit (420) among at least one storage unit (400). By the first type storage unit receiving portion (241) and the second type storage unit receiving portion (242), the plurality of storage units (400) can be stably received in the case unit (200).

[0106] Meanwhile, in order to miniaturize and integrate the integrated noise filter (1) according to the disclosed first embodiment of the present invention, the plurality of storage unit receiving portions (240) may be formed with openings in a direction (or a first direction) corresponding to the same axis (e.g., z-axis) as the plurality of first-side busbar unit receiving portions (210) to receive the plurality of storage units (400), and may be formed with openings in a direction corresponding to a different axis from the plurality of second-side busbar unit receiving portions (220). That is, the plurality of storage unit receiving portions (240) may be formed with openings in the vertical direction. Accordingly, a structure in which the plurality of storage units (400) are stably assembled and soldered on a surface (e.g., a surface corresponding to the xy plane) of the plurality of busbar units (100) can be formed. If necessary, a plurality of storage units (400) may be accommodated in a plurality of storage unit receiving portions (240), and the plurality of storage units (400) may be molded to protect them from the external environment. For example, the plurality of storage units (400) may be molded through a storage unit molding member (930 of FIG. 9). The plurality of storage units (400) may be epoxy molded through the storage unit molding member (930 of FIG. 9), but are not necessarily limited to the materials listed.

[0107]

[0108] Additionally, the plurality of storage unit receiving portions (240) may be formed with openings in a direction opposite to the plurality of first-side busbar unit receiving portions (210). More specifically, the plurality of first-side busbar unit receiving portions (210) may be formed with openings in the positive z-axis direction (or the first direction), and the plurality of storage unit receiving portions (240) may be formed with openings in the negative z-axis direction. In the structure of the plurality of busbar units (100) including the busbar bending portion (113), the positions at which the plurality of storage unit receiving portions (240) are formed may be determined so as to be received adjacent to a layer corresponding to the second input / output terminal (112) so that the plurality of storage units (400) can easily form a connection with a portion of the plurality of busbar units (100) and a grounding unit (500) described later. Accordingly, the plurality of storage units (400) can be stably accommodated in each of the plurality of storage unit receiving portions (240) and easily electrically connected to the plurality of busbar units (100), thereby effectively reducing noise. The plurality of storage units (400), the ground path formed by the plurality of storage units (400), and the minimization of differential mode noise / common mode noise will be described later.

[0109] In addition, the case unit (200) may further include a pair of grounding unit receiving portions (250) for accommodating a pair of grounding units (500) to be described later, respectively. The pair of grounding unit receiving portions (250) may be partially formed to open in a direction (i.e., a second direction) corresponding to the same axis (e.g., the x-axis) as the second-side busbar unit receiving portions (220) for accommodating the second input / output terminals (112) of each of the plurality of busbar units (100), and may accommodate a pair of grounding units (500). The grounding surfaces (503) of the pair of grounding units (500) accommodated in the pair of grounding unit receiving portions (250) may come into contact with the outer surface of the load (1000) connected by the plurality of busbar units (100) to form a frame ground (FG). Accordingly, the grounding path using the frame of the load may be simplified, and there is an advantage of miniaturizing the integrated noise filter (1).

[0110] In addition, the case unit (200) may further include a case molding portion (260) in which a grounding unit-side capacitor connection portion (501) of a pair of grounding units (500) described later and a capacitor connection unit extension portion (702) of a capacitor connection unit (700) are accommodated. The case molding portion (260) may include a first case molding portion (260a) and a second case molding portion (260b), and the case molding portion (260) may be molded with a molding material (e.g., epoxy molding) so that components built into the case unit (200) may be protected from the external environment.

[0111]

[0112] Below, at least one core unit (300) is described.

[0113] Referring to FIGS. 2 to 6, in the integrated noise filter (1) according to the disclosed first embodiment of the present invention, at least one core unit (300) can apply a predetermined inductance (L) to each of a plurality of busbar units (100). The inductance (L) applied by at least one core unit (300) can be several μH.

[0114] At least one core unit (300) may be arranged relatively adjacent to the first input / output terminal (111). More specifically, at least one core unit (300) may be formed to be biased toward the first input / output terminal (111) based on a portion (e.g., an end of the second input / output terminal) exposed from the case unit (200) among the second input / output terminals (112) of the plurality of busbar units (100). The inner surface of at least one core unit (300) may cover at least a portion of the outer surface of the second input / output terminals (112) of the plurality of busbar units (100). Accordingly, at least one core unit (300) may be stably accommodated inside the case unit (200) and may provide an inductance (L) to each of the plurality of busbar units (100).

[0115] More specifically, at least one core unit can reduce both common mode noise (CM noise) and differential mode noise (DM noise) by providing the same inductance (L) to each of the plurality of busbar units (100). For example, the cross-sectional center of at least one core unit (300) can be arranged at the widthwise center of the busbar units (100) arranged on both sides in the widthwise direction (for example, in the direction corresponding to the third direction or the y-axis) among the plurality of busbar units (100).

[0116] For example, when the plurality of busbar units (100) include two busbar units, the position of at least one core unit (300) may be arranged so that the widthwise center between the first busbar unit (100a) and the second busbar unit (100b) arranged on both sides in the widthwise direction and the cross-sectional center of at least one core unit (300) are aligned.

[0117] For another example, when a plurality of busbar units (100) include three busbar units, and a first busbar unit (100a), a second busbar unit (100b), and a third busbar unit (not shown) are arranged in parallel at equal intervals along the width direction, the position of at least one core unit (300) may be arranged so that the widthwise center between the first busbar unit (100a) and the third busbar unit (not shown) arranged on both sides in the width direction and the cross-sectional center of at least one core unit (300) are aligned.

[0118] However, if at least one core unit (300) is provided in a number corresponding to the number of the plurality of busbar units (100) as needed, the position of at least one core unit (300) may be arranged at a position where the cross-sectional center of each core unit corresponding to each of the plurality of busbar units (100) and the widthwise center of each of the plurality of busbar units (100) are aligned.

[0119] By this arrangement, at least one core unit (300) can provide an inductance (L) of the same size to each of the plurality of busbar units (100), thereby providing the advantage of reducing both common mode noise (CM noise) and differential mode noise (DM noise).

[0120]

[0121] Below, a plurality of storage units (400) are described.

[0122] Referring to FIGS. 2 to 6 (especially, FIGS. 3 and 5), an integrated noise filter (1) according to a first embodiment of the present invention may include a plurality of storage units (400). The plurality of storage units (400) are electrically connected to at least some of the plurality of busbar units (100) and may provide capacitance (C) to the plurality of busbar units (100). At least some of the plurality of storage units (400) may reduce common mode noise (CM noise) from a low frequency range to a high frequency range, and the remaining some of the plurality of storage units (400) may reduce differential mode noise (DM noise) in the low frequency range. That is, since the noise existing from the low frequency range to the high frequency range can be reduced overall by the capacitance (C) value of each of the plurality of storage units (400), the integrated noise filter (1) according to the disclosed first embodiment of the present invention has the advantage of being able to transmit high-quality power and / or signals.

[0123] More specifically, the plurality of storage units (400) may include a plurality of first type storage units (410) and at least one second type storage unit (420). For example, the plurality of first type storage units (410) may have one end (4101) electrically connected to at least one of the plurality of busbar units (100) and the other end (4102) electrically connected to at least one of a pair of grounding units (500) to form a ground path, thereby minimizing common mode noise (CM noise). The plurality of first type storage units (410) may be Y capacitors having a capacitance (C) of several pF to several μF. One first type storage unit (410a) may have a first capacitance (C1), and the other first type storage unit (410b) may have a second capacitance (C2). As noise flowing through each of the plurality of bus bar units (100) passes through the plurality of first type capacitor units (410), noise in the low frequency range and / or high frequency range can be filtered, and noise can be removed along the ground path.

[0124] In particular, since the integrated noise filter (1) according to the disclosed first embodiment of the present invention includes a plurality of busbar units (100), there is a possibility that differential mode noise (DM noise) may occur between each of the busbar units (100). Differential mode noise (DM noise) may also reduce power transmission efficiency and interfere with signal transmission.

[0125] To solve this problem, the integrated noise filter (1) according to the disclosed first embodiment of the present invention includes at least one second type storage unit (420). The at least one second type storage unit (420) may be arranged between a plurality of first type storage units (410). In addition, both ends (4201, 4202) of the at least one second type storage unit (420) may be electrically connected to at least some of the plurality of busbar units (100) to minimize differential mode noise (DM noise). The at least one second type storage unit (420) may be an X capacitor having a capacitance (C) of several pF to several μF. For example, the at least one second type storage unit (420) may have a third capacitance (C3).

[0126] The difference between the plurality of first type storage units (410) and the at least one second type storage unit (420) may be whether each of the two ends of the plurality of storage units (400) is connected to the plurality of busbar units (100), or whether any one of the plurality of busbar units (100) is connected to any one of the pair of grounding units (500). Accordingly, the plurality of first type storage units (410) may be connected to any one of the plurality of busbar units (100) and any one of the pair of grounding units (500) to form a grounding path, and the at least one second type storage unit (420) may be connected between two adjacent busbar units (100), or between two busbar units (100) among all of the plurality of busbar units (100).

[0127] For example, when three busbar units (100) are arranged in parallel and at equal intervals in the width direction, one second type storage unit (420) may be arranged to electrically connect between the first busbar unit (100a) and the second busbar unit (100b), and another second type storage unit (420) may be arranged to electrically connect between the second busbar unit (100b) and the third busbar unit (not shown). In some cases, another second type storage unit (420) may be arranged to electrically connect between the third busbar unit (not shown) and the first busbar unit (100a).

[0128] Therefore, the integrated noise filter (1) according to the disclosed first embodiment of the present invention, which includes a plurality of first type storage units (410) and at least one second type storage unit (420), can minimize common mode noise and differential mode noise, and has the advantage of increasing power transfer efficiency and minimizing electromagnetic interference.

[0129]

[0130] Below, the arrangement structure of multiple storage units (400) and the grounding path formed through a pair of grounding units (500) are described.

[0131] Referring to FIGS. 2, 3, and 6, the integrated noise filter (1) according to the disclosed first embodiment of the present invention may further include a pair of grounding units (500). The pair of grounding units (500) may be electrically connected to at least a portion of the plurality of busbar units (100) to form a ground. At this time, the grounding method of the pair of grounding units (500) may be a frame ground (FG), but is not necessarily limited thereto.

[0132] A pair of grounding units (500) may include a first grounding unit (510) and a second grounding unit (520). At this time, the first grounding unit (510) of the pair of grounding units (500) may be electrically connected to a first input / output terminal (111a) of a first busbar unit (100a) of a plurality of busbar units (100) by both ends of a first type storage unit (410a) of one side of a plurality of storage units (400) to form a first grounding path, and the second grounding unit (520) of the pair of grounding units (500) may be electrically connected to a first input / output terminal (111b) of a second busbar unit (100b) of a plurality of busbar units (100) by both ends of a first type storage unit (410b) of the other side of the plurality of storage units (400) to form a second grounding path.

[0133] For example, a plurality of busbar units (100) can be electrically connected to a plurality of storage units (400) through a capacitor connection unit (700) that is fixed by a first input / output terminal fastening unit (600). The capacitor connection unit (700) can have a through-hole structure having a shape corresponding to the first input / output terminal (111) and can be coupled to the first input / output terminal (111) by the first input / output terminal fastening unit (600). In addition, there is an advantage in that each of the plurality of storage units (400) can be stably assembled and soldered to a pair of grounding units (500) by a structure that is protrudedly formed at both ends of the capacitor connection unit (700).

[0134] The first input / output terminal fastening unit (600) may be formed in a structure that can be coupled to a through hole formed in at least a portion of the first input / output terminal (111) of each of the plurality of busbar units (100), and for example, the first input / output terminal fastening unit (600) may be formed in at least one structure among known coupling structures such as a screw coupling structure, a rivet coupling structure, and a force-fit coupling structure. The first input / output terminal fastening unit (600) may include a first input / output terminal fastening unit (600a) on one side that is coupled to the first input / output terminal (111a) of the first busbar unit (100a), and a first input / output terminal fastening unit (600b) on the other side that is coupled to the first input / output terminal (111b) of the second busbar unit (100b). By means of the input / output terminal connection unit (600), each of the plurality of bus bar units (100) and the capacitor connection unit (700) described below can form a mutually stable mechanical connection.

[0135] Meanwhile, in the integrated noise filter (1) according to the disclosed first embodiment of the present invention, a capacitor connection unit (700) may be formed to protrude and extend a predetermined length toward both sides in the width direction from the first input / output terminal connection unit (600). The capacitor connection unit (700) enables the first type capacitor units (410) among the plurality of capacitor units (400) to form a stable coupling structure between the capacitor connection unit (700) and the first grounding unit (510) or the second grounding unit (520). In addition, the capacitor connection unit (700) enables at least one second type capacitor unit (420) among the plurality of capacitor units (400) to form a stable coupling structure between the capacitor connection unit (700).

[0136] At this time, the capacitor connection unit (700) may include a first capacitor connection unit (700a) that contacts the first input / output terminal (111a) of the first busbar unit (100a), and a second capacitor connection unit (700b) that contacts the first input / output terminal (111b) of the second busbar unit (100b). At least a portion of the first capacitor connection unit (700a) among the capacitor connection units (700) may be in surface contact with the first input / output terminal (111a) of the first busbar unit (100a), and at least a portion of the second capacitor connection unit (700b) may be in surface contact with the first input / output terminal (111b) of the second busbar unit (100b). Accordingly, power and / or signals traveling through the first busbar unit (100a) and the second busbar unit (100b) can pass through the first capacitor connection unit (700a) and / or the second capacitor connection unit (700b) to the first type storage units (410) or at least one second type storage unit (420), thereby reducing noise, and noise can be eliminated by traveling to the first ground path and / or the second ground path.

[0137] More specifically, the capacitor connection unit (700) may include a capacitor connection unit body (701) and a pair of capacitor connection unit extensions (702) that extend in the width direction (e.g., a third direction parallel to the y-axis) from the capacitor connection unit body (701). At least one of the plurality of first type capacitor units (410) may be coupled with one side (7021a, 7021b) of the pair of capacitor connection unit extensions (702) and a capacitor connection part (501) on the grounding unit side that extends in the width direction among the pair of grounding units (500) to be aligned along the second direction (e.g., the direction corresponding to the x-axis) to form a grounding path.

[0138] In addition, at least one second type storage unit (420) is coupled to the capacitor unit extension (702) of the capacitor connection unit (700) and aligned along a third direction (e.g., a direction corresponding to the y-axis) that is perpendicular to the second direction to remove differential mode noise. By the arrangement structure of the plurality of first type storage units (410) and the at least one second type storage unit (420), the plurality of storage units (400) can be integrated and arranged, and there is an advantage in that the integrated noise filter (1) according to the disclosed embodiment of the present invention can be miniaturized while effectively removing common mode noise and differential mode noise.

[0139] Below, the coupling structure between the first type capacitor units (410), the second type capacitor unit (420), the capacitor connection unit (700), and a pair of grounding units (500) will be described in more detail.

[0140] The first capacitor connection unit (700a) may include a first capacitor connection unit body (701a) and a pair of first capacitor connection unit extensions (702a) that extend in the width direction (third direction) from the first capacitor connection unit body (701a). At this time, the pair of first capacitor connection unit extensions (702a) may include a first capacitor connection unit extension (7021a) on one side that extends in one direction (for example, the y-axis negative direction) in the width direction based on the first capacitor connection unit body (701a), and a first capacitor connection unit extension (7022a) on the other side that extends in the other direction (for example, the y-axis positive direction) in the width direction based on the first capacitor connection unit body (701a).

[0141] Similarly, the second capacitor connection unit (700b) may include a second capacitor connection unit body (701b) and a pair of second capacitor connection unit extensions (702b) that extend in the width direction (third direction) from the second capacitor connection unit body (701b). At this time, the pair of second capacitor connection unit extensions (702b) may include a second capacitor connection unit extension (7021b) on one side that extends in one direction (for example, the y-axis negative direction) in the width direction based on the second capacitor connection unit body (701b), and a second capacitor connection unit extension (7022b) on the other side that extends in the other direction (for example, the y-axis positive direction) in the width direction based on the second capacitor connection unit body (701b).

[0142] At least a portion of the first capacitor connection unit (700a) and at least a portion of the second capacitor connection unit (700b) can form a structure for arranging and combining a plurality of capacitor units (400).

[0143] More specifically, among the first capacitor connection units (700a), the first capacitor connection unit extension portion (7021a) formed to extend in the third direction and the first ground unit-side capacitor connection portions (501, 511) of the first ground unit (510) forming the first ground path among the pair of ground units (500) may be electrically connected by the first type capacitor unit (410a) having the first capacitance (C1). At this time, the first ground unit-side capacitor connection portions (501, 511) may be formed to extend in the remaining direction (the y-axis positive direction among the third directions), and the first capacitor connection unit extension portion (7021a) on the one side and the first ground unit-side capacitor connection portions (501, 511) may form a structure in which they overlap each other along a direction parallel to the second direction (for example, the x-axis direction). Accordingly, the first type storage unit (410a) on one side can be aligned and arranged along the second direction.

[0144] Similarly, the second capacitor connection unit extension (7022b) formed in the third direction among the second capacitor connection units (700b) and the second grounding unit-side capacitor connection portions (501, 521) of the second grounding unit (520) forming the second grounding path among the pair of grounding units (500) may be electrically connected by the other side first type capacitor unit (410b) having the second capacitance (C2). At this time, the second grounding unit-side capacitor connection portions (501, 521) may be formed to extend in one direction (the y-axis negative direction among the third directions), and the other side second capacitor connection unit extension portion (7022b) and the second grounding unit-side capacitor connection portions (501, 521) may form a structure in which they overlap each other along a direction parallel to the second direction (for example, the x-axis direction). Accordingly, the first type storage unit (410b) on the other side can be aligned and arranged along the second direction.

[0145] In addition, the first capacitor connection unit extension (7022a) on the other side extending in the third direction among the first capacitor connection units (700a) and the second capacitor connection unit extension (7021b) on one side extending in the third direction among the second capacitor connection units (700b) may be electrically connected by a second type storage unit (420) having a third capacitance (C3). At this time, the first capacitor connection unit extension (7022a) on the other side and the second capacitor connection unit extension (7021b) on one side may form a structure arranged in a straight line along a direction parallel to the third direction (e.g., the y-axis direction). Accordingly, the second type storage units (420) may be aligned and arranged along the third direction.

[0146] Additionally, the second type storage unit (420) arranged in the third direction between the first capacitor connection unit extension (7022a) on the other side and the second capacitor connection unit extension (7021b) on the one side is illustrated as being one, but is not necessarily limited to the illustrated number, and a plurality of second type storage units (420) may be arranged in series, parallel, or series-parallel combinations as needed.

[0147] Meanwhile, each of the plurality of storage units (400) may include a storage unit one-side lead formed to extend from one side of the storage unit body, and a storage unit other-side lead formed to face the storage unit one-side lead with respect to the storage unit body and to extend from the other side of the storage unit body.

[0148] That is, the first type capacitor unit (410a) on one side may include a first type capacitor unit on one side lead (4101, 4101a) and a first type capacitor unit on the other side lead (4102, 4102a). The first type capacitor unit on one side lead (4101, 4101a) may be inserted into a hole formed in the first capacitor connection unit extension (7021a), and the first type capacitor unit on the other side lead (4102, 4102a) may be inserted into a hole formed in the first ground unit-side capacitor connection portion (501, 511). Accordingly, a first ground path for removing common mode noise may be formed.

[0149] In addition, the other side first type storage unit (410b) may include a first side first type storage unit one-side lead (4101, 4101b) and a first side first type storage unit other-side lead (4102, 4102b). The first side first type storage unit one-side lead (4101, 4101b) may be inserted into a hole formed in the second capacitor connection unit extension (7022b), and the first side first type storage unit other-side lead (4102, 4102b) may be inserted into a hole formed in the second ground unit-side capacitor connection portion (501, 521). Accordingly, a second ground path may be formed to remove common mode noise.

[0150] In addition, the second type storage unit (420) may include a second type storage unit one-side lead (4201) and a second type storage unit other-side lead (4202). The second type storage unit one-side lead (4201) may be inserted into a hole formed in the other-side first capacitor connection unit extension (7022a), and the second type storage unit other-side lead (4202) may be inserted into a hole formed in the one-side second capacitor connection unit extension (7021b). Accordingly, a path for removing differential mode noise may be formed.

[0151]

[0152] Below, the structure of the integrated noise filter (1) according to the disclosed first embodiment of the present invention from a circuit perspective is described.

[0153] FIG. 7 is a circuit diagram showing the configuration of elements between the first input / output terminal (111) and the second input / output terminal (112) of a plurality of busbar units (100) in an integrated noise filter (1) according to the disclosed first embodiment of the present invention.

[0154] Referring to FIG. 7, power and / or signals passing through a plurality of busbar units (100) may be affected by an inductance (L) applied by at least one core unit (300). By the arrangement of at least one core unit (300) and the first busbar unit (100a), and the second busbar unit (100b), common mode noise in the low-frequency region and the high-frequency region and differential mode noise in the high-frequency region can be controlled.

[0155] In addition, a ground path to a pair of grounding units (500) can be formed through a first type capacitor unit (410a) on one side having a first capacitance (C1) and a first type capacitor unit (410b) on the other side having a second capacitance (C2), and common mode noise in a low frequency region and a high frequency region can be controlled through each of the plurality of first type capacitor units (410).

[0156] Additionally, differential mode noise in the low frequency region that may occur between the first busbar unit (100a) and the second busbar unit (100b) can be controlled through at least one second type capacitor unit (420) having a third capacitance (C3).

[0157] In this way, the common mode noise of the low frequency region and the differential mode noise of the high frequency region can be controlled by the inductance (L) of at least one core unit (300), the common mode noise of the low frequency region and the high frequency region can be controlled by the first capacitance (C1) and the second capacitance (C2) of the plurality of first type storage units (410), and the differential mode noise of the low frequency region can be controlled by the third capacitance (C3) of at least one second type storage unit (420). Therefore, there is an advantage in that the common mode noise and the differential mode noise of all regions can be effectively controlled by the electrical connection structure (or circuit structure) of the integrated noise filter (1) according to the disclosed first embodiment of the present invention.

[0158]

[0159] Below, the configuration of the elastic member (800) is described.

[0160] Referring back to FIGS. 2 to 6, the integrated noise filter (1) according to the disclosed first embodiment of the present invention may further include an elastic member (800). The elastic member (800) may be disposed between a portion of the inner surface of the case unit and the at least one core unit (300) when the at least one core unit (300) is accommodated in the core unit accommodation portion (230) of the case unit (200) and then molded. For example, the elastic member (800) may be formed in a ring shape and may be formed of a urethane material. After the elastic member (800) is disposed, a portion between the elastic member (800) and the at least one core unit (300) may be molded, so that a structure may be formed in which the molded outer surface of the at least one core unit (300) and a portion of the inner surface of the case unit (200) are elastically supported without directly contacting each other. In addition, a pair of grounding unit (500) horizontal extensions (502) are arranged on the outer sides of the elastic member (800) to prevent physical interference between at least one core unit (300) and the pair of grounding units (500). Accordingly, the integrated noise filter (1) according to the disclosed first embodiment of the present invention has the advantage of being able to be stably assembled while having a miniaturized structure.

[0161]

[0162] Hereinafter, an integrated noise filter (2) according to another embodiment (second embodiment) of the present invention will be described. In describing the integrated noise filter (2) according to the second embodiment of the present invention, any content that overlaps with the above-described content may be briefly described or omitted. That is, the integrated noise filter (2) according to the second embodiment of the present invention may be described focusing on the differences from the integrated noise filter (1) according to the first embodiment of the present invention described above.

[0163] FIG. 8 is a perspective view of an integrated noise filter (2) according to the disclosed second embodiment of the present invention, and FIG. 9 is an exploded perspective view of an integrated noise filter (2) according to the disclosed second embodiment of the present invention.

[0164] Referring to FIGS. 8 and 9, an integrated noise filter (2) according to a second embodiment of the present invention includes a plurality of busbar units (100') and a case unit (200'), at least one core unit (300') that provides inductance to the plurality of busbar units (100'), and a plurality of capacitor units (400) that provide capacitance to the plurality of busbar units (100').

[0165] At this time, each of the plurality of busbar units (100') may have a bent shape. For example, each of the plurality of busbar units may include a busbar bending portion (113') that allows the first input / output terminal (111') and the second input / output terminal (112') to extend in different directions. By the busbar bending portion (113'), one side of the first input / output terminal (111') may be exposed in a direction corresponding to the second direction. In addition, by the busbar bending portion (113'), one side of the second input / output terminal (112) may be exposed in a direction corresponding to the first direction.

[0166] More specifically, each of the plurality of busbar units (100') may have a bent shape having a certain angle by the busbar bending portion (113'). For example, each of the plurality of busbar units (100') may be bent at least once by the busbar bending portion (113') to have an L-shape. By the structure of each of the plurality of busbar units (100') as described above, in the integrated noise filter (2) according to the disclosed second embodiment of the present invention, one side of the first input / output terminal (111') of each of the plurality of busbar units (100') may be formed to be exposed toward the second direction of the case unit (200), and an end of the second input / output terminal (112') of each of the plurality of busbar units (100') may be formed to face the first input / output terminal (111') and be exposed toward the second direction. In addition, the length from the first input / output terminal (111') to the busbar bending portion (113') can be formed shorter than the length from the second input / output terminal (112') to the busbar bending portion (113'). Accordingly, the first input / output terminal (111') and the second input / output terminal (112') are electrically connected to the outside and the load (1000), respectively, thereby enabling noise minimization, power transmission, and signal transmission.

[0167] In addition, the integrated noise filter (2) according to the disclosed second embodiment of the present invention has an advantage in that it can be electrically connected to an external device and a load (1000) by having a different connection structure from the noise filter (1) according to the first embodiment described above.

[0168] In addition, at least one core unit (300'), which is a component of the integrated noise filter (2) according to the disclosed second embodiment of the present invention, may be formed in plural. For example, the integrated noise filter (2) according to the disclosed second embodiment of the present invention may include a first core unit (310) covering a portion of the outer surface of the first busbar unit (100'a), and a second core unit (320) covering a portion of the outer surface of the second busbar unit (100'b). That is, the first core unit (310) may impart a predetermined first inductance to the first busbar unit (100'a), and the second core unit (320) may impart a predetermined second inductance to the second busbar unit (100'b). In addition, the first inductance applied to the first busbar unit (100'a) by the first core unit (310) and the second inductance applied to the second busbar unit (100'b) by the second core unit (320) may be different. Therefore, the integrated noise filter (2) according to the disclosed second embodiment of the present invention has the advantage of enabling more efficient power conversion and transmission, signal transmission, and noise reduction by providing appropriate inductance to each busbar unit (100'a, 100'b).

[0169] Meanwhile, a plurality of storage units (400), which are one component of an integrated noise filter according to a second embodiment of the present invention, may include storage units (400) forming a first ground path and storage units (400) forming a second ground path. Each of the plurality of storage units (400) may have both ends electrically connected by a capacitor connection unit (700') and a ground unit (500') to form a first ground path and a second ground path. That is, in the integrated noise filter according to another embodiment of the present invention, noise may be removed by passing through the plurality of busbar units (100'), the capacitor connection unit (700'), the plurality of storage units (400), and the ground unit (500').

[0170] More specifically, the noise of the first busbar unit (100'a) can be removed by the first type storage unit (410) among the plurality of storage units (400). The noise of the first busbar unit (100'a) can be removed along a first ground path formed through a capacitor connection unit (700'a) formed on one side, a first type storage unit (410), and a first ground unit (500', 510') electrically connected to the first type storage unit (410). In addition, the noise of the second busbar unit (100'b) can be removed along a second ground path formed through a capacitor connection unit (700'b) formed on the other side, a first type storage unit (410), and a second ground unit (500', 520') electrically connected to the first type storage unit (410).

[0171] Meanwhile, the capacitor connection unit (700') may be coupled to the ground path connection portion (114) of the busbar unit (100'). For example, the capacitor connection unit (700') may be coupled to the ground path connection portion (114) through a fixed fastening member. The ground path connection portion (114) may be formed between the second input / output terminal (112') and the busbar bending portion (113'). Accordingly, the integrated noise filter (2) according to the disclosed second embodiment of the present invention has the advantage of being able to stably remove noise by forming a ground path at a separate location from the input / output terminals (111', 112').

[0172] In some cases, the grounding unit (500') may be coupled via a washer unit (910) so that it can be stably accommodated in the grounding unit receiving portion (250') of the case unit (200'). For example, the washer unit (910) may be formed of a conductive material. The grounding unit (500') may implement frame grounding (FG) via the washer unit (910), or may implement grounding by an external component that directly contacts the grounding unit (500').

[0173] In addition, each of the plurality of busbar units (100') can be coupled to the case unit (200') via a busbar fastening member (940) including a press-fit nut. By configuring the busbar fastening member (940) as described above, the plurality of busbar units (100') can be stably accommodated in the case unit (200'), and there is an advantage in that the integrated noise filter (2) can be firmly assembled.

[0174] Therefore, the integrated noise filter (2) according to the disclosed second embodiment of the present invention has the advantage of being able to effectively remove both common mode noise (CM) and differential mode noise (DM).

[0175] In addition, at least one core unit (300') can be molded into the case unit (200') by a core molding member (920), and a plurality of storage units (400) can be molded into the case unit (200') by a storage unit molding member (930). The core molding member (920) and the storage unit molding member (930) can allow at least one core unit (300') and a plurality of storage units (400) to be stably placed within the case unit (200'), and can protect at least one core unit (300') and a plurality of storage units (400) from an external environment.

[0176] Meanwhile, the case unit (200'), which is a component of the integrated noise filter (2) according to the disclosed second embodiment of the present invention, may include a plurality of first-side busbar unit receiving portions (210'), a plurality of second-side busbar unit receiving portions (220'), a plurality of core unit receiving portions (230'), a plurality of capacitor unit receiving portions (240'), a grounding unit receiving portion (250'), and a case molding portion (260'), similar to the integrated noise filter (1) according to the first embodiment of the present invention described above, and a detailed description thereof is omitted.

[0177]

[0178] Below, an integrated noise filter (3) according to another disclosed embodiment (third embodiment) of the present invention is described.

[0179] FIG. 10 is a perspective view of an integrated noise filter (3) according to a third embodiment of the present invention, and FIG. 11 is an exploded perspective view of an integrated noise filter (3) according to a third embodiment of the present invention.

[0180] Referring to FIGS. 10 and 11, the integrated noise filter (3) according to the disclosed third embodiment of the present invention may include at least one busbar unit (100''). For example, at least one busbar unit (100'') may have a single busbar structure. At least one busbar unit (100'') may have a bar shape that extends in one direction. That is, at least one busbar unit (100'') may include a first input / output terminal (111'') and a second input / output terminal (112''), and the first input / output terminal (111'') and the second input / output terminal (112'') may have the same height. At this time, with at least a part of at least one busbar unit (100'') accommodated in the case unit (200''), the upper part of the first input / output terminal (111'') may be exposed to the outside, and a part of the outer surface of the second input / output terminal (112'') may be exposed to the outside. With this structure, the integrated noise filter (3) according to the disclosed third embodiment of the present invention can be miniaturized, and there is an advantage in that electrical connection with the load (1000) and the outside is easily possible.

[0181] Meanwhile, a plurality of storage units (400), which are one component of the integrated noise filter (3) according to the disclosed third embodiment of the present invention, can form a ground path. Each of the plurality of storage units (400) can have both ends electrically connected by a capacitor connection unit (700'') and a ground unit (500'') to form a ground path. That is, in the integrated noise filter (3) according to the disclosed third embodiment of the present invention, noise can be removed along a ground path formed by at least one busbar unit (100''), a capacitor connection unit (700'') coupled to a ground path connection portion (114) of the busbar unit (100''), first type storage units (410) among the plurality of storage units (400), and a ground unit (500''). At this time, the ground path connection portion (114) can be formed between the first input / output terminal (111'') and the second input / output terminal (112''). Accordingly, the integrated noise filter (3) according to the disclosed third embodiment of the present invention has the advantage of being able to remove noise stably by forming a ground path at a separate location from the input / output terminals (111'', 112'').

[0182] In some cases, the grounding unit (500'') may be coupled via a washer unit (910) so that it can be stably received in the grounding unit receiving portion (250'') of the case unit (200''). For example, the washer unit (910) may be formed of a conductive material. The grounding unit (500'') may implement frame grounding (FG) via the washer unit (910), or may implement grounding by an external component that directly contacts the grounding unit (500'').

[0183]

[0184] Therefore, the integrated noise filter (3) according to the disclosed third embodiment of the present invention has the advantage of being able to effectively remove both common mode noise (CM) and differential mode noise (DM).

[0185] Additionally, at least one core unit (300) can be molded into the case unit (200'') by a core molding member (920), and a plurality of storage units (400) can be molded into the case unit (200) by a storage unit molding member (930). The core molding member (920) and the storage unit molding member (930) can allow at least one core unit (300') and a plurality of storage units (400) to be stably positioned within the case unit (200''), and can protect at least one core unit (300) and a plurality of storage units (400) from an external environment.

[0186] More specifically, the case unit (200''), which is a component of the integrated noise filter (3) according to the disclosed third embodiment of the present invention, may include at least one capacitor unit receiving portion (240'') formed with an opening along the second direction. By this structure, in the integrated noise filter (3) according to the disclosed third embodiment of the present invention, a plurality of capacitor units (400) are received in the at least one capacitor unit receiving portion (240'') of the case unit (200'') along the second direction, and both sides of the at least one capacitor unit receiving portion (240'') may be epoxy molded by a capacitor unit molding member (930).

[0187] Meanwhile, the case unit (200''), which is a component of the integrated noise filter (3) according to the disclosed third embodiment of the present invention, may include at least one first-side busbar unit receiving portion (210''), at least one second-side busbar unit receiving portion (220''), at least one core unit receiving portion (230''), a grounding unit receiving portion (250''), and a case molding portion, similar to the integrated noise filter (1) according to the first embodiment of the present invention described above, and a detailed description thereof is omitted.

[0188]

[0189] Below, an integrated noise filter (4) according to the fourth embodiment disclosed in the present invention is described.

[0190] FIG. 12 is a perspective view of an integrated noise filter (4) according to the fourth embodiment disclosed in the present invention, and FIG. 13 is an exploded perspective view of an integrated noise filter (4) according to the fourth embodiment disclosed in the present invention.

[0191] Referring to FIGS. 12 and 13, the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention may include at least one busbar unit (100'). For example, at least one busbar unit (100') may have a single busbar structure. At least one busbar unit (100') may have a bar shape extending in one direction. That is, at least one busbar unit (100') may include a first input / output terminal (111') and a second input / output terminal (112').

[0192] At this time, at least one busbar unit (100') may have a bent shape. For example, at least one busbar unit (100') may include a busbar bending portion (113') that allows each of the first input / output terminal (111') and the second input / output terminal (112') to extend in different directions. By the busbar bending portion (113'), one side of the first input / output terminal (111') may be exposed in a direction corresponding to the second direction. In addition, by the busbar bending portion (113'), the end of the second input / output terminal (112') may be exposed in a direction corresponding to the second direction.

[0193] In addition, the length of the first input / output terminal (111') based on the above bus bar bending portion (113') can be formed shorter than the length of the second input / output terminal (112'). Accordingly, the first input / output terminal (111') and the second input / output terminal (112') are electrically connected to the outside and the load (1000), respectively, to enable noise minimization, power transmission, and signal transmission.

[0194] In this way, since at least one busbar unit (100') includes a busbar bending portion (113'), at least one busbar unit (100') can have an L-shaped structure. Therefore, the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention has an advantage in that it can be electrically connected to an external device and a load (1000) so as to have a different connection structure from the noise filter (1) according to the aforementioned embodiment (according to the first embodiment).

[0195] At this time, the first input / output terminal (111') may have its upper part (i.e., one side) exposed to the outside, and the second input / output terminal (112') may have a part of its outer surface (i.e., both sides) exposed to the outside. With this structure, the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention can be miniaturized, and there is an advantage in that electrical connection with the load (1000) and the outside can be easily made.

[0196] Meanwhile, a plurality of storage units (400), which are one component of the integrated noise filter (4) according to the fourth embodiment disclosed in the present invention, can form a ground path. Each of the plurality of storage units (400) can have both ends electrically connected by a capacitor connection unit (700''') and a ground unit (500''') to form a ground path. That is, in the integrated noise filter (4) according to the fourth embodiment disclosed in the present invention, noise can be removed by passing through at least one busbar unit (100'), a capacitor connection unit (700'''), the plurality of storage units (400), and the ground unit (500''').

[0197] More specifically, noise of at least one busbar unit (100') can be removed by a first type storage unit (410) among a plurality of storage units (400). Noise of at least one busbar unit (100') can be removed along a ground path formed through a capacitor connection unit (700'''), a first type storage unit (410), and a ground unit (500''') electrically connected to the first type storage unit (410).

[0198] Meanwhile, the capacitor connection unit (700''') may be coupled to the ground path connection portion (114) of the busbar unit (100'). For example, the capacitor connection unit (700') may be coupled to the ground path connection portion (114) through a fixed fastening member. The ground path connection portion (114) may be formed between the second input / output terminal (112') and the busbar bending portion (113'). Accordingly, the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention has the advantage of being able to stably remove noise by forming a ground path at a separate location from the input / output terminals (111', 112').

[0199] In some cases, the grounding unit (500''') may be coupled via a washer unit (910) so that it can be stably received in the grounding unit receiving portion (250''') of the case unit (200'''). For example, the washer unit (910) may be formed of a conductive material. The grounding unit (500''') may implement frame grounding (FG) via the washer unit (910), or may implement grounding by an external component that directly contacts the grounding unit (500''').

[0200] Additionally, at least one busbar unit (100') can be coupled to the case unit (200') via a busbar fastening member (940) including a press-fit nut. By configuring the busbar fastening member (940) as described above, at least one busbar unit (100') can be stably accommodated in the case unit (200'''), and there is an advantage in that the integrated noise filter (4) is firmly assembled.

[0201] Therefore, the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention has the advantage of being able to effectively remove both common mode noise (CM) and differential mode noise (DM).

[0202] In addition, at least one core unit (300) can be molded into the case unit (200''') by a core molding member (920), and a plurality of storage units (400) can be molded into the case unit (200''') by a storage unit molding member (930). The core molding member (920) and the storage unit molding member (930) can allow at least one core unit (300) and a plurality of storage units (400) to be stably positioned within the case unit (200'''), and can protect at least one core unit (300) and a plurality of storage units (400) from an external environment.

[0203] Meanwhile, the case unit (200'''), which is a component of the integrated noise filter (4) according to the disclosed fourth embodiment of the present invention, may include at least one first-side busbar unit receiving portion (210'''), at least one second-side busbar unit receiving portion (220'), a plurality of core unit receiving portions (230'), a plurality of capacitor unit receiving portions (240'''), a grounding unit receiving portion (250'''), and a case molding portion, similar to the integrated noise filter (3) according to the aforementioned third embodiment of the present invention, and a detailed description thereof will be omitted.

[0204]

[0205] Hereinafter, the integrated noise filters (1, 2, 3, 4) according to the entire embodiments of the present invention described above will be summarized and described. In the process of summarizing and describing the integrated noise filters (1, 2, 3, 4) according to the entire embodiments of the present invention, separate drawing symbols are omitted to prevent confusion of detailed components, and the distinct configurations of the integrated noise filters (1, 2, 3, 4) according to each detailed embodiment are explained by the attached drawings and corresponding contents.

[0206] An integrated noise filter (1, 2, 3, 4) according to the disclosed embodiments of the present invention includes at least one busbar unit for transmitting power and an electrical signal. The at least one busbar unit may include one busbar unit (100) having a first input / output terminal and a second input / output terminal. In some cases, the at least one busbar unit may include a plurality of busbar units. For example, an integrated noise filter (1, 2, 3, 4) including a plurality of busbar units may be included in the integrated noise filter (1, 2) according to the first and second embodiments, and an integrated noise filter (1, 2, 3, 4) including one busbar unit may be included in the integrated noise filter (3, 4) according to the third and fourth embodiments.

[0207] When at least one busbar unit includes a plurality of busbar units, the plurality of busbar units may include a first busbar unit arranged longitudinally along a second direction, and a second busbar unit arranged longitudinally along the second direction parallel to the first busbar unit and spaced apart from the first busbar unit by a predetermined busbar spacing distance. At this time, the busbar spacing distance may be formed to be smaller than the widthwise length of each of the first busbar unit and the second busbar unit. Therefore, even when a plurality of busbar units are arranged, there is an advantage of preventing the integrated noise filter (1, 2) from becoming large.

[0208] In addition, one side of the first input / output terminal of at least one busbar unit may be formed to be exposed toward a first direction of the case unit (for example, the positive z-axis direction), and at least a part of the second input / output terminal of at least one busbar unit (for example, the end of the second input / output terminal) may be formed to be exposed toward a second direction (for example, the positive x-axis direction) that is perpendicular to the first direction. Such an exposure shape may be included in the integrated noise filter (1) according to the first embodiment having a structure in which at least one busbar unit is formed by being bent two or more times by a busbar bending portion, and the integrated noise filter (3) according to the third embodiment having a structure in which at least one busbar unit is not bent.

[0209] In other embodiments, one side of the first input / output terminal of at least one busbar unit may be formed to be exposed toward the second direction of the case unit (e.g., the negative x-axis direction), and at least a part of the second input / output terminal of at least one busbar unit (e.g., an end of the second input / output terminal) may also be formed to be exposed toward the second direction of the case unit (e.g., the positive x-axis direction), but opposite to the first input / output terminal. Such an exposure shape may be included in the integrated noise filter (2) according to the second embodiment, in which at least one busbar unit has an L-shaped structure by being bent once by the busbar bending portion, and in the integrated noise filter (4) according to the fourth embodiment.

[0210] However, the integrated noise filters (1, 2, 3, 4) according to all disclosed embodiments of the present invention may be formed so that one side of the first input / output terminal is exposed to the outside, and the second input / output terminal is formed so that both sides are exposed to the outside, in a state where at least a part of at least one busbar unit is accommodated in a case unit. By this structure, the integrated noise filters (1, 2, 3, 4) according to the disclosed embodiments of the present invention can be designed in a shape corresponding to various coupling structures with the outside and / or a load, and there is an advantage in that the versatility of the integrated noise filters (1, 2, 3, 4) is improved.

[0211]

[0212] An integrated noise filter (1, 2, 3, 4) according to all disclosed embodiments of the present invention may include a case unit, and the case unit may accommodate at least a portion of at least one busbar unit. As the case unit accommodates at least a portion of the busbar unit, a specific portion (or a specific surface) of the first input / output terminal and the second input / output terminal may be exposed to the outside, and various coupling structures corresponding to the positions of the outside and the load may be implemented.

[0213] The case unit includes at least one first-side busbar unit receiving portion that is formed with an opening in at least one direction among a first direction (e.g., a positive z-axis direction) and a second direction perpendicular to the first direction (e.g., a negative x-axis direction) to receive a first input / output terminal of at least one busbar unit. For example, in the integrated noise filter (1) according to the first embodiment, which has a structure in which at least one busbar unit is formed by being bent two or more times by a busbar bending portion, and in the integrated noise filter (3) according to the third embodiment, in which at least one busbar unit has a structure in which the busbar unit is not bent, the first-side busbar unit receiving portion may be formed with an opening in the first direction (e.g., a positive z-axis direction). As another example, in the integrated noise filter (2) according to the second embodiment, in which at least one busbar unit is bent once by a busbar bending portion and has an L-shaped structure, and in the integrated noise filter (4) according to the fourth embodiment, the first-side busbar unit receiving portion may be formed with an opening in the second direction (e.g., a negative x-axis direction).

[0214] The case unit includes at least one second-side busbar unit receiving portion that is formed with an opening in a second direction (e.g., in the positive x-axis direction) to receive a second input / output terminal of at least one busbar unit. The at least one second-side busbar unit receiving portion may be formed in the second direction to facilitate connection to the load side through the second input / output terminal.

[0215] When at least one busbar unit includes a plurality of busbar units, at least one first-side busbar unit receiving portion may include a plurality of first-side busbar unit receiving portions, and at least one second-side busbar unit receiving portion may include a plurality of second-side busbar unit receiving portions. In addition, the plurality of first-side busbar unit receiving portions may include a first-side first busbar unit receiving portion that receives a first input / output terminal of a first busbar unit among the plurality of busbar units, and a first-side second busbar unit receiving portion that receives a first input / output terminal of a second busbar unit, and the first-side first busbar unit receiving portion and the first-side second busbar unit receiving portion may be opened to be spaced apart from each other by a predetermined distance in the width direction.

[0216] The case unit may include a core unit receiving portion for receiving at least one core unit, and may include at least one capacitor unit receiving portion for receiving a plurality of capacitor units. The core unit receiving portion may be formed with respect to a second direction in which the at least one core unit is received. The at least one capacitor unit receiving portion may be formed with an opening corresponding to the same axis as the at least one first-side busbar unit receiving portion or the same axis as the at least one second-side busbar unit receiving portion.

[0217] In the integrated noise filter (3) according to the third embodiment, at least one storage unit receiving portion may be formed with an opening in a direction corresponding to the same axis as the second-side busbar unit receiving portion. In the integrated noise filters (1, 2, 4) according to the remaining embodiments, at least one storage unit receiving portion may be formed with an opening in a direction corresponding to the same axis as the first-side busbar unit receiving portion. Meanwhile, in the integrated noise filters (1, 2) according to the first and second embodiments, at least one storage unit receiving portion includes a plurality of storage unit receiving portions, and the plurality of storage unit receiving portions correspond to the same axis as at least one first-side busbar unit receiving portion to receive a plurality of storage units, are formed with an opening in a direction opposite to at least one first-side busbar unit receiving portion, and are formed with an opening in a direction corresponding to a different axis from at least one second-side busbar unit receiving portion.

[0218] In addition, the case unit may further include a grounding unit receiving portion. The grounding unit receiving portion may be formed with an opening on one side or the other side corresponding to the same axis as the second-side busbar unit receiving portion that receives the second input / output terminal of at least one busbar unit, and may receive a grounding unit. At this time, the grounding surface of the grounding unit received in the grounding unit receiving portion may contact the outer surface of a load connected by a plurality of busbar units (or at least one busbar unit) to form a frame ground. When the grounding unit receiving portion is formed on one side of the case unit, the grounding surface of the grounding unit may directly contact the load to form a frame ground, or may indirectly contact the load through a washer unit formed on the other side of the case unit to form a frame ground. The grounding unit receiving portion of the integrated noise filter (1) according to the first embodiment of the present invention is formed on one side of the case unit, and the grounding unit receiving portions of the integrated noise filters (2, 3, 4) according to the other embodiments are illustrated as being formed on the other side of the case unit, but are not necessarily limited to the illustrated shape.

[0219] An integrated noise filter (1, 2, 3, 4) according to embodiments of the present invention includes at least one core unit. The at least one core unit covers a portion of an outer surface of at least one busbar unit and can provide inductance to the at least one busbar unit. More specifically, the at least one core unit is formed to be biased toward the first input / output terminal based on a portion of a second input / output terminal of the at least one busbar unit exposed from a case unit, and an inner surface of the at least one core unit covers at least a portion of an outer surface of the second input / output terminal of the at least one busbar unit and can provide inductance to the at least one busbar unit.

[0220] The integrated noise filter (1, 3, 4) according to the first, third, and fourth embodiments of the present invention includes one core unit. At this time, in the case of the integrated noise filter (1) according to the first embodiment of the present invention including a plurality of busbar units, at least one core unit is formed to be biased toward the first input / output terminal based on a portion exposed from the case unit among the second input / output terminals of the plurality of busbar units, and the inner circumference of the at least one core unit covers at least a portion of the outer circumference of the second input / output terminals of the plurality of busbar units to provide inductance to each of the plurality of busbar units. In addition, the cross-sectional center of the at least one core unit is arranged at the widthwise center of the busbar units arranged on both sides in the widthwise direction (for example, in the direction parallel to the y-axis) among the plurality of busbar units, and the magnitude of the inductance provided by the at least one core unit to each of the plurality of busbar units may be the same.

[0221] Meanwhile, the integrated noise filter (2) according to the second embodiment of the present invention may include a plurality of core units corresponding to each of the plurality of busbar units. At this time, the inner surface of each of the plurality of core units may cover at least a portion of the outer surface of the second input / output terminal of each of the plurality of busbar units to provide inductance.

[0222] At least one core unit can reduce common mode (CM) noise and differential mode (DM) noise of the integrated noise filter (1, 2, 3, 4) according to the disclosed embodiments of the present invention.

[0223] An integrated noise filter (1, 2, 3, 4) according to embodiments of the present invention comprises a plurality of capacitor units. The plurality of capacitor units are electrically connected to at least a portion of at least one busbar unit and can provide capacitance to at least one busbar unit.

[0224] In the integrated noise filter (2, 3, 4) according to the second, third, and fourth embodiments of the present invention, the plurality of storage units may include a plurality of first type storage units, one end of which is electrically connected to at least one busbar unit and the other end is electrically connected to a grounding unit to form a grounding path, and which minimizes common mode noise. In the integrated noise filter (1) according to the first embodiment of the present invention, the plurality of storage units may include a plurality of first type storage units, one end of which is electrically connected to at least one of the plurality of busbar units and the other end is electrically connected to the grounding unit to form a grounding path, and which minimizes common mode noise, and at least one second type storage unit, which is arranged between the plurality of first type storage units and has both ends electrically connected to at least some of the plurality of busbar units to minimize differential mode noise. At this time, the first type storage units may include Y capacitors, and the second type storage units may include X capacitors.

[0225] Accordingly, at least one core unit can reduce common mode noise and differential mode noise, the first type capacitor units can reduce common mode noise, and the second type capacitor unit can reduce differential mode noise. With this configuration, the integrated noise filter (1, 2, 3, 4) according to the disclosed embodiments of the present invention has the advantage of minimizing both common mode noise and differential mode noise.

[0226] In addition, the integrated noise filter (1, 2, 3, 4) according to the embodiments of the present invention may further include a grounding unit. The grounding unit may be electrically connected to at least a portion of at least one busbar unit to form a ground (path). The grounding unit may be electrically connected through at least a portion of a plurality of storage units on the first input / output terminal side of at least one busbar unit to form a grounding path. In the integrated noise filter (1, 2) according to the first and second embodiments of the present invention, the grounding units may be formed in a pair, and a plurality of grounding paths (a first grounding path, a second grounding path) corresponding to each of the plurality of busbar units may be formed. In the integrated noise filter (3, 4) according to the third and fourth embodiments of the present invention, the grounding unit may be formed as one, and a single grounding path corresponding to one busbar unit may be formed.

[0227] In addition, the integrated noise filter (1, 2, 3, 4) according to embodiments of the present invention may include a washer unit for coupling a grounding unit to a case unit, a core molding member for molding at least one core unit to a case unit, and a capacitor unit molding member for molding a plurality of capacitor units to a case unit. In addition, the integrated noise filter (1, 2, 3, 4) according to embodiments of the present invention may include a busbar fastening member for fixedly coupling at least one busbar unit to a case unit.

[0228] In addition, the remaining components that are not described in detail are described according to the illustrated shape of the integrated noise filter (1, 2, 3, 4) according to each embodiment of the present invention and the related contents.

[0229]

[0230] Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications can be made within the scope of the patent claims, the detailed description of the invention, and the attached drawings, and it is obvious that this also falls within the scope of the present invention.

[0231] The present invention provides an integrated noise filter capable of minimizing both differential mode electromagnetic interference noise and common mode electromagnetic interference noise introduced from outside or generated from equipment.

Claims

1. At least one busbar unit for transmitting power and electrical signals; A case unit accommodating and covering at least a portion of said at least one busbar unit; At least one core unit covering a portion of the outer surface of at least one busbar unit and imparting inductance to the at least one busbar unit; and An integrated noise filter comprising a plurality of capacitor units electrically connected to at least a portion of at least one busbar unit and providing capacitance to the at least one busbar unit.

2. In claim 1, At least one busbar unit, An integrated noise filter characterized by comprising a first input / output terminal electrically connected to the outside, and a second input / output terminal formed opposite to the first input / output terminal and electrically connected to a load.

3. In claim 2, The above first input / output terminal is formed to be exposed toward the first direction of the case unit, An integrated noise filter characterized in that at least a portion of the second input / output terminal is formed to be exposed toward a second direction perpendicular to the first direction of the case unit.

4. In claim 2, The above first input / output terminal is formed to be exposed toward the second direction of the case unit, An integrated noise filter characterized in that at least a portion of the second input / output terminal is formed to face the first input / output terminal and be exposed toward the second direction.

5. In claim 2, An integrated noise filter, characterized in that at least a portion of the at least one busbar unit is accommodated in the case unit, the first input / output terminal is formed so that one side is exposed to the outside, and the second input / output terminal is formed so that both sides are exposed to the outside.

6. In claim 1, wherein said at least one busbar unit comprises a plurality of busbar units, The above plurality of busbar units are, A first busbar unit arranged longitudinally along the second direction; and A second busbar unit is arranged longitudinally along the second direction parallel to the first busbar unit and is spaced apart from the first busbar unit by a predetermined busbar spacing distance; An integrated noise filter characterized in that the busbar spacing is formed to be smaller than the widthwise length of the first busbar unit and the second busbar unit.

7. In claim 3, At least one core unit, An integrated noise filter characterized in that the second input / output terminal of the at least one busbar unit is biased toward the first input / output terminal based on a portion exposed from the case unit, and the inner surface of the at least one core unit covers at least a portion of the outer surface of the second input / output terminal of the at least one busbar unit to provide inductance to the at least one busbar unit.

8. In claim 7, wherein said at least one busbar unit comprises a plurality of busbar units, The at least one core unit is formed to be biased toward the first input / output terminal based on a portion of the second input / output terminal of the plurality of busbar units exposed from the case unit, and the inner surface of the at least one core unit covers at least a portion of the outer surface of the second input / output terminal of the plurality of busbar units to provide inductance to each of the plurality of busbar units. The cross-sectional center of at least one core unit is arranged at the widthwise center of the busbar units arranged on both widthwise sides among the plurality of busbar units, An integrated noise filter characterized in that the magnitude of the inductance provided by the at least one core unit to each of the plurality of busbar units is the same.

9. In claim 2, The above case unit, At least one first side busbar unit receiving portion formed with an opening in at least one direction among a first direction and a second direction perpendicular to the first direction to receive the first input / output terminal of the at least one busbar unit; and An integrated noise filter characterized by comprising at least one second side busbar unit receiving portion formed with an opening in the second direction to receive the second input / output terminal of the at least one busbar unit.

10. In claim 9, wherein said at least one busbar unit comprises a plurality of busbar units, The at least one first side busbar unit receiving portion includes a plurality of first side busbar unit receiving portions, The at least one second side busbar unit receiving portion includes a plurality of second side busbar unit receiving portions, The above plurality of first side bus bar unit receiving portions are, A first side first busbar unit receiving portion that receives the first input / output terminal of the first busbar unit among the plurality of busbar units; and A first side second busbar unit receiving portion that receives the first input / output terminal of a second busbar unit among the plurality of busbar units; An integrated noise filter characterized in that the first side first busbar unit receiving portion and the first side second busbar unit receiving portion are opened at a predetermined interval in the width direction.

11. In claim 9, Further comprising a grounding unit electrically connected to at least a portion of the at least one busbar unit to form a ground; An integrated noise filter characterized in that the grounding unit is electrically connected to at least some of the plurality of capacitor units on the first input / output terminal side of the at least one busbar unit to form a grounding path.

12. In claim 11, The above case unit, An integrated noise filter characterized in that it further includes at least one capacitor unit receiving portion formed with an opening in a direction corresponding to the same axis as the at least one first-side busbar unit receiving portion or the same axis as the at least one second-side busbar unit receiving portion, in order to receive the plurality of capacitor units.

13. In claim 12, wherein at least one of the above storage unit receptacles comprises a plurality of storage unit receptacles, An integrated noise filter characterized in that the plurality of storage unit receiving portions correspond to the same axis as the at least one first-side busbar unit receiving portion, are formed with openings in a direction opposite to the at least one first-side busbar unit receiving portion, and are formed with openings in a direction corresponding to a different axis from the at least one second-side busbar unit receiving portion, in order to receive the plurality of storage units.

14. In claim 11, The above plurality of storage units are, An integrated noise filter comprising a plurality of first type capacitor units, one end of which is electrically connected to at least one busbar unit and the other end of which is electrically connected to the ground unit to form the ground path, and which minimizes common mode noise.

15. In claim 11, wherein said at least one busbar unit comprises a plurality of busbar units, The above plurality of storage units are, A plurality of first type capacitor units, each of which has at least one end electrically connected to at least one of the plurality of busbar units and the other end electrically connected to the ground unit to form the ground path, and which minimize common mode noise; and An integrated noise filter characterized by comprising at least one second type capacitor unit disposed between the plurality of first type capacitor units and having both ends electrically connected to at least some of the plurality of busbar units to minimize differential mode noise.

16. In claim 15, At least one of the plurality of first type capacitor units is connected to a capacitor connection unit extension formed in the width direction among the capacitor connection units that are connected to at least one of the plurality of busbar units, and a capacitor connection unit side of the grounding unit that is connected in the width direction among the grounding units, and is aligned and arranged along the second direction. An integrated noise filter characterized in that the second type capacitor unit is aligned along a third direction perpendicular to the second direction and coupled to the capacitor connection unit extension of the capacitor connection unit.

17. In claim 11, The above case unit, Further comprising a grounding unit receiving portion that is formed with an opening on one side or the other side corresponding to the same axis as the second side bus bar unit receiving portion that receives the second input / output terminal of the at least one bus bar unit and receives the grounding unit; An integrated noise filter characterized in that the ground surface of the grounding unit accommodated in the grounding unit accommodation unit is in contact with the outer surface of the load connected by the plurality of busbar units to form a frame ground.

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