BMS PCB assembly and battery control unit including same

Abstract

A BMS PCB assembly and a battery control unit including same are disclosed. The BMS PCB assembly according to an aspect of the present invention may comprise: a first PCB conductibly connected to an external BDU assembly; a second PCB conductibly coupled to the first PCB; and an insulating member located between the first PCB and the second PCB, and coupled to each of the first PCB and the second PCB, wherein the first PCB, the insulating member, and the second PCB are sequentially stacked in a height direction.

Description

BMS PCB assembly and battery control unit including the same

[0001] The present invention relates to a BMS PCB assembly and a battery control unit including the same, and more particularly, to a BMS PCB assembly having a structure in which a BDU and a BMS for controlling a battery are configured as an integral unit while maintaining insulation therebetween, and a battery control unit including the same.

[0002] Electric vehicles (EVs) are a type of next-generation transportation. Electric vehicles are powered by electricity, breaking away from conventional technologies that rely on fossil fuels like diesel or gasoline. Because they produce no byproducts during operation, electric vehicles are considered more environmentally friendly than traditional vehicles that emit carbon dioxide and other emissions.

[0003] One of the core components of an electric vehicle is the battery. The battery is designed to supply the power necessary for the vehicle's operation and other components. To ensure stable operation, the battery must be controlled to supply the necessary amount of power to the right location.

[0004] To achieve this, a battery management system (BMS) and a battery disconnect unit (BDU) may be installed together with the battery. The BMS determines (or judges) whether the battery will supply power to or cut off power from other components. Furthermore, the BDU is configured to be communicatively connected to the BMS and supply power to or cut off power from the other components based on the BMS's decision.

[0005] Therefore, reliable communication between the BMS and BDU is essential for the stable operation of the battery and the electric vehicle it powers. This is especially true in electric vehicles, where, unlike other electronic devices, accidents can have a fatal impact on the lives of occupants.

[0006] Korean Patent Publication No. 10-2021-0133886 discloses a battery pack and a device including the same. Specifically, the battery pack and a device including the same are disclosed, including a BDU module connected to an HV line to control the electrical connection of the battery module, and a BMS module connected to an LV line to monitor and control the operation of the battery module.

[0007] However, the battery pack and device including the same disclosed in the above-mentioned prior art document do not provide a method for reliably maintaining the connection status of the BDU module and the BMS module. According to the above-mentioned prior art document, the BDU module and the BMS module are provided separately and are connected to each other by arbitrary lines, but are not directly connected.

[0008] International Patent Publication No. 2019 / 117449 discloses a battery pack. Specifically, the battery pack is capable of cooling the first and second circuit boards by creating an airflow between a first circuit board functioning as a BDU and a second circuit board functioning as a BMS.

[0009] However, the battery pack disclosed in the above-mentioned prior art document also comprises a first circuit board and a second circuit board, each connected by separate configurations. In other words, the above-mentioned prior art document also fails to provide a method for reliably maintaining the connection between the first circuit board and the second circuit board.

[0010] Furthermore, the above-mentioned prior literature does not provide a solution to the situation in which the BDU and BMS are separately equipped and then combined, resulting in excessive space occupancy.

[0011] Korean Patent Publication No. 10-2021-0133886 (November 8, 2021)

[0012] International Patent Publication No. 2019 / 117449 (June 20, 2019)

[0013] The present invention is intended to solve the above problems, and an object of the present invention is to provide a BMS PCB assembly having a structure in which a BDU and a BMS can be reliably connected, and a battery control unit including the same.

[0014] Another object of the present invention is to provide a BMS PCB assembly having a structure in which a plurality of PCBs can be stably maintained in a state of being electrically connected to each other, and a battery control unit including the same.

[0015] Another object of the present invention is to provide a BMS PCB assembly having a structure in which configurations other than a configuration in which a plurality of PCBs are electrically connected to each other can be electrically insulated from each other, and a battery control unit including the same.

[0016] Another object of the present invention is to provide a BMS PCB assembly having a structure in which a connection state of a plurality of PCBs can be stably maintained, and a battery control unit including the same.

[0017] Another object of the present invention is to provide a BMS PCB assembly having a structure that can be miniaturized by reducing the space occupied by the BDU and BMS, and a battery control unit including the same.

[0018] Another object of the present invention is to provide a combined BMS and a BMS PCB assembly having a structure capable of preventing arbitrary movement of the BMS, and a battery control unit including the same.

[0019] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0020] According to one aspect of the present invention, a BMS PCB assembly may be provided, comprising: a first PCB electrically connected to an external BDU assembly; a second PCB electrically coupled to the first PCB; and an insulating member positioned between the first PCB and the second PCB and coupled to the first PCB and the second PCB, respectively, wherein the first PCB, the insulating member, and the second PCB are sequentially stacked along a height direction.

[0021] At this time, a BMS PCB assembly may be provided, which includes an insulating body that supports the first PCB and is supported by the second PCB; an insulating bonding hole formed through the interior of the insulating body; and a bonding member that is bonded to the first PCB or the second PCB and the insulating bonding hole.

[0022] In addition, a BMS PCB assembly may be provided in which the first PCB includes a first PCB coupling connector electrically coupled to the second PCB, the second PCB includes a second PCB coupling terminal electrically coupled to the first PCB coupling connector, and the first PCB coupling connector and the second PCB coupling terminal are positioned on the outside of the insulating member along a horizontal direction.

[0023] At this time, the first PCB includes a first PCB substrate that at least partially covers the insulating member and to which the first PCB coupling connector is electrically coupled; and a first fastening member coupling hole formed penetrating through the interior of the first PCB substrate, wherein the insulating coupling holes are formed in plurality, and some of the plurality of insulating coupling holes are arranged to overlap the first fastening member coupling hole along the height direction, and the coupling member penetrates the first fastening member coupling hole and is coupled with the insulating coupling hole, thereby providing a BMS PCB assembly.

[0024] In addition, a BMS PCB assembly may be provided in which the second PCB comprises a second PCB substrate at least partially covered by the insulating member and to which the second PCB coupling terminal is electrically coupled; and a second fastening member coupling hole formed penetrating through the interior of the second PCB substrate, wherein a plurality of the insulating coupling holes are formed, and some of the plurality of insulating coupling holes are arranged to overlap the second fastening member coupling holes along the height direction, and the coupling member penetrates the second fastening member coupling hole and is coupled with the insulating coupling hole.

[0025] At this time, a BMS PCB assembly may be provided in which the connecting member is configured as a pair of parts spaced apart in the horizontal direction, and each of the pair of parts extends in the height direction, but the diameter of the end portion is formed to be larger than the diameter of the other portion, so as to be snap-fitted with the insulating connecting hole, the first PCB, and the second PCB.

[0026] In addition, a BMS PCB assembly can be provided in which the above-mentioned joining member is provided as a screw member and is configured to be screw-joined with the above-mentioned insulating joining hole, the first PCB, and the second PCB.

[0027] At this time, a BMS PCB assembly may be provided, wherein the insulating member includes a first insulating space formed inside the insulating body and having one side facing the first PCB open; and a second insulating space formed inside the insulating body and physically partitioned from the first insulating space and having one side facing the second PCB open.

[0028] In addition, a BMS PCB assembly may be provided in which the insulating body includes an insulating surface positioned between the first insulating space and the second insulating space along the height direction to physically partition the first PCB and the second PCB; and an insulating edge extending along the outer periphery of the insulating surface and protruding in the height direction compared to the insulating surface, such that the first PCB is mounted on one end of the insulating edge in the height direction, and the other end of the insulating edge in the height direction is mounted on the second PCB.

[0029] At this time, the insulating body includes a pair of connector guide portions extending from the outer periphery of the insulating surface to one side and spaced apart along the other side; and a connector receiving opening formed between the pair of connector guide portions and receiving a second PCB connector provided on the second PCB, and a BMS PCB assembly can be provided in which the connector receiving opening is formed such that one side opposite to the insulating surface is open.

[0030] In addition, according to one aspect of the present invention, there is provided a cover part having a space formed therein; a BDU assembly accommodated in the cover part and electrically connected to an external battery unit; and a BMS PCB assembly coupled to the BDU assembly and electrically connected thereto and supported by the cover part, wherein the BDU assembly includes a BDU component accommodated in the cover part and electrically connected to the battery unit; and a BDU housing coupled to the cover part, positioned between the BDU component and the BMS PCB assembly, and electrically connected to the BDU component and the BMS PCB assembly, respectively, wherein the BMS PCB assembly includes a first PCB electrically connected to the BDU assembly; a second PCB electrically connected to the first PCB; And a battery control unit may be provided, which includes an insulating member positioned between the first PCB and the second PCB and connected to the first PCB and the second PCB, respectively, wherein the first PCB includes a first PCB connection connector electrically connected to the second PCB, and the second PCB includes a second PCB connection terminal electrically connected to the first PCB connection connector, and wherein the insulating member is configured to insulate other components of the first PCB except for the first PCB connection connector and other components of the second PCB except for the second PCB connection terminal.

[0031] At this time, a battery control unit may be provided, wherein the first PCB comprises a first PCB substrate that at least partially covers the insulating member and to which the first PCB coupling connector is electrically coupled; a first PCB terminal that is electrically coupled to the first PCB substrate and extends toward the BDU housing to be electrically coupled with the BDU component; and a first PCB connector that is electrically coupled to the first PCB substrate and protrudes toward the BDU housing to be electrically coupled with the BDU component.

[0032] In addition, a battery control unit may be provided, wherein the second PCB comprises a second PCB substrate at least partially covered by the insulating member and to which the second PCB coupling terminal is electrically coupled; and a second PCB connector electrically coupled to the second PCB substrate and located on the outside of the insulating member and electrically coupled to an external control power source.

[0033] According to the above configuration, the BMS PCB assembly according to an embodiment of the present invention and the battery control unit including the same can reliably connect the BDU and the BMS.

[0034] In addition, according to the above configuration, the BMS PCB assembly and the battery control unit including the same according to the embodiment of the present invention can stably maintain a state in which a plurality of PCBs are electrically connected to each other.

[0035] In addition, according to the above configuration, the BMS PCB assembly according to the embodiment of the present invention and the battery control unit including the same can electrically insulate other configurations from each other except for a configuration in which a plurality of PCBs are electrically connected to each other.

[0036] In addition, according to the above configuration, the BMS PCB assembly according to the embodiment of the present invention and the battery control unit including the same can stably maintain the connection state of a plurality of PCBs.

[0037] In addition, according to the above configuration, the BMS PCB assembly according to the embodiment of the present invention and the battery control unit including the same can be miniaturized by reducing the space occupied by the BDU and the BMS.

[0038] In addition, according to the above configuration, the BMS PCB assembly according to the embodiment of the present invention and the battery control unit including the same can prevent arbitrary movement of the combined BMS and the BMS.

[0039] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0040] FIG. 1 is a perspective view illustrating a battery control unit according to an embodiment of the present invention.

[0041] Figure 2 is an exploded perspective view illustrating the battery control unit of Figure 1.

[0042] FIG. 3 is a perspective view illustrating a BMS PCB assembly provided in the battery control unit of FIG. 1.

[0043] Fig. 4 is an exploded perspective view showing the configuration of the BMS PCB assembly of Fig. 3.

[0044] FIG. 5 is a perspective view showing a first PCB provided in the BMS PCB assembly of FIG. 3.

[0045] Fig. 6 is a front view showing the first PCB of Fig. 5.

[0046] Fig. 7 is a bottom view illustrating the first PCB of Fig. 5.

[0047] Fig. 8 is a perspective view showing a second PCB provided in the BMS PCB assembly of Fig. 3.

[0048] Fig. 9 is a front view showing the second PCB of Fig. 8.

[0049] Fig. 10 is a plan view illustrating the second PCB of Fig. 8.

[0050] Fig. 11 is a bottom view illustrating the second PCB of Fig. 8.

[0051] Fig. 12 is a perspective view showing an insulating member provided in the BMS PCB assembly of Fig. 3.

[0052] Fig. 13 is a plan view illustrating the insulating member of Fig. 12.

[0053] Fig. 14 is a cross-sectional view taken along line AA showing the insulating member of Fig. 12.

[0054] Figures 15 and 16 are perspective views illustrating the process of assembling the BMS PCB assembly of Figure 3.

[0055] Fig. 17 is a plan view illustrating the BMS PCB assembly of Fig. 3.

[0056] Figure 18 is a bottom view illustrating the BMS PCB assembly of Figure 17.

[0057] Fig. 19 is a front view illustrating the BMS PCB assembly of Fig. 17.

[0058] Fig. 20 is a rear view illustrating the BMS PCB assembly of Fig. 17.

[0059] Figure 21 is a left side view illustrating the BMS PCB assembly of Figure 17.

[0060] Figure 22 is a right side view illustrating the BMS PCB assembly of Figure 17.

[0061] Fig. 23 is a BB cross-sectional view illustrating the BMS PCB assembly of Fig. 17.

[0062] Fig. 24 is a CC cross-sectional view illustrating the BMS PCB assembly of Fig. 17.

[0063] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily practice the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts irrelevant to the description are omitted in the drawings, and the same reference numerals designate identical or similar components throughout the specification.

[0064] The words and terms used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted in a way that is consistent with the technical idea of ​​the present invention, in accordance with the principles by which the inventor can define terms and concepts in order to best explain his or her invention.

[0065] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to a preferred embodiment of the present invention, and do not represent all of the technical ideas of the present invention, so there may be various equivalents and modified examples that can replace the configuration at the time of filing of the present invention.

[0066] In the following description, descriptions of some components may be omitted to clarify the features of the present invention.

[0067]

[0068] The term "fluid communication" as used herein refers to one or more elements being fluidly connected to one another. In one embodiment, the fluid communication may be formed by elements such as conduits, pipes, or piping. In the following description, the fluid communication may be used in the same sense as one or more elements being "fluidly connected" to one another.

[0069] The term "conduction" as used herein refers to the connection of one or more elements to enable the transmission of current or electrical signals. In one embodiment, the conduction may be formed in a wired form, such as by a conductor element, or in a wireless form, such as Bluetooth, Wi-Fi, or RFID. In one embodiment, the conduction may also include the meaning of "communication."

[0070] The term "fluid" used in the following description refers to any form of material that can flow and change shape or volume, etc., due to an external force. In one embodiment, the fluid may be a liquid such as water or a gas such as air.

[0071] The terms “upper side,” “lower side,” “left side,” “right side,” “front side,” and “rear side” used in the following description shall be understood with reference to the coordinate system depicted throughout the attached drawings.

[0072]

[0073] Referring to FIGS. 1 and 2, a battery control unit (1) according to an embodiment of the present invention is illustrated as an example. The battery control unit (1) according to the illustrated embodiment may be installed in an electric vehicle, etc. In the above embodiment, the battery control unit (1) is electrically connected to a battery unit (not shown) and may be utilized to control the battery unit (not shown).

[0074] Alternatively, the battery control unit (1) may be provided in any device having a battery unit (not shown) and utilized to control the battery unit (not shown).

[0075] In addition, a battery control unit (1) according to an embodiment of the present invention may be configured integrally with a BMS that calculates control information for controlling a battery unit (not shown) and a BDU that controls the battery unit (not shown) in accordance with the control information calculated by the BMS. Specifically, the BMS and the BDU may be directly connected to each other so as to be electrically conductive.

[0076] Therefore, compared to cases where the BMS and BDU are connected by separate components, such as a conductor, communication between the BMS and BDU can proceed more quickly. Furthermore, the connection between the BMS and BDU can be maintained stably.

[0077] Furthermore, in the battery control unit (1) according to an embodiment of the present invention, among the configurations of the BMS and the BDU, a configuration that does not require current flow between them is spaced apart by a predetermined distance, and an insulating material is placed therebetween to prevent arbitrary current flow between them.

[0078] Accordingly, the size of the entire battery control unit (1) can be reduced while maintaining the stable coupling and communication status of the BMS and BDU. Furthermore, the insulation status between different components of the BMS and BDU can be stably maintained.

[0079] In the illustrated embodiment, the battery control unit (1) includes a cover portion (10), a BDU assembly (20), and a BMS PCB assembly (30).

[0080] The cover portion (10) constitutes the outer shape of the battery control unit (1). A space is formed inside the cover portion (10) to accommodate other configurations of the battery control unit (1). In addition, some configurations of the cover portion (10) can support the other configurations of the battery control unit (1).

[0081] The cover portion (10) may be formed of an electrically insulating material. This is to prevent other components of the battery control unit (1) housed in the cover portion (10) from being energized by the outside. The cover portion (10) may be formed of a lightweight yet high-strength material. This is to prevent other components of the battery control unit (1) housed inside the cover portion (10) from being damaged when an external force is applied.

[0082] In one embodiment, the cover portion (10) may be formed of a synthetic resin material such as reinforced plastic.

[0083] In the illustrated embodiment, the cover portion (10) includes an upper cover (11) and a lower cover (12).

[0084] The upper cover (11) constitutes a portion of the cover section (10). A space is formed inside the upper cover (11) to accommodate other configurations of the battery control unit (1). In the illustrated embodiment, the upper cover (11) constitutes the upper portion of the cover section (10) and accommodates a portion of the BDU assembly (20).

[0085] The upper cover (11) is coupled with the BDU assembly (20). Specifically, the upper cover (11) is coupled with the BDU housing (21). At this time, the upper cover (11) accommodates the BDU component (22) and can be coupled with the BDU housing (21).

[0086] The upper cover (11) may have a shape corresponding to the shape of the BDU housing (21). In the illustrated embodiment, the upper cover (11) has a three-dimensional shape in which the length in the front-back direction is shorter than the width in the left-right direction and the height in the up-down direction is greater.

[0087] A plurality of openings may be formed on one side in the height direction of the upper cover (11), the upper side in the illustrated embodiment. Heat generated in the internal space of the upper cover (11) may be discharged to the outside through the openings. The other side in the height direction of the upper cover (11), the lower side in the illustrated embodiment, may be formed open to form a passage for accommodating the BDU assembly (20). The other side of the upper cover (11) communicates the internally formed space with the outside.

[0088] The lower cover (12) constitutes another portion of the cover portion (10). The lower cover (12) is coupled to and supports the BMS PCB assembly (30). In the illustrated embodiment, the lower cover (12) constitutes the lower portion of the cover portion (10) and supports the BMS PCB assembly (30) from the lower side.

[0089] The lower cover (12) may have a shape corresponding to the shape of the BMS PCB assembly (30). In the illustrated embodiment, the lower cover (12) has a three-dimensional shape in which the length in the front-back direction is shorter than the width in the left-right direction and the height in the up-down direction is greater.

[0090] A groove may be formed on one side of the lower cover (12) in the height direction, in the illustrated embodiment, on the upper side. A part of the BMS PCB assembly (30), i.e., a second PCB (200) to be described later, may be accommodated in the groove.

[0091] The BDU assembly (20) is electrically connected to a battery unit (not shown) and a BMS PCB assembly (30), respectively. The BDU assembly (20) can control the battery unit (not shown) in accordance with control information calculated in the BMS PCB assembly (30). For this purpose, the BDU assembly (20) may be equipped with a battery disconnect unit.

[0092] The BDU assembly (20) is coupled with the cover portion (10). Specifically, some components of the BDU assembly (20) can be accommodated in a space formed inside the upper cover (11). In addition, other components of the BDU assembly (20) can be coupled with the upper cover (11).

[0093] The BDU assembly (20) is coupled to the BMS PCB assembly (30). The BDU assembly (20) is electrically connected to the BMS PCB assembly (30) and can receive calculated control information. Specifically, the BDU assembly (20) is electrically connected to the first PCB (100) provided in the BMS PCB assembly (30).

[0094] As will be described later, the first PCB (100) can be directly and electrically connected to the second PCB (200). Accordingly, the effect of the BDU assembly (20) connected to the first PCB (100) also being directly and electrically connected to the second PCB (200) can be achieved.

[0095] In the illustrated embodiment, the BDU assembly (20) includes a BDU housing (21) and a BDU component (22).

[0096] The BDU housing (21) constitutes the outer shape of the BDU assembly (20). The BDU housing (21) is coupled to and supports the BDU component (22). In the illustrated embodiment, the BDU housing (21) supports the BDU component (22) from the lower side.

[0097] The BDU housing (21) may be provided with a configuration that is electrically connected to the BDU component (22). The configuration may also be electrically connected to the BMS PCB assembly (30). Accordingly, when the BDU component (22) is coupled to the BDU housing (21), the BDU component (22) may be electrically connected to the BMS PCB assembly (30).

[0098] The BDU housing (21) is coupled with the upper cover (11). Each horizontal side of the BDU housing (21), in the illustrated embodiment the front side, the rear side, the left side, and the right side, can be coupled with the upper cover (11). In one embodiment, the BDU housing (21) can be snap-fitted with the upper cover (11).

[0099] The BDU housing (21) may have a shape corresponding to the shape of the upper cover (11) and the BMS PCB assembly (30). In the illustrated embodiment, the BDU housing (21) has a three-dimensional shape with a rectangular cross-section and a vertical height.

[0100] The BDU housing (21) may be formed of an electrically insulating material. This is to prevent unintentional current flow between the BDU component (22) and the BMS PCB assembly (30). Accordingly, it will be understood that the BDU component (22) and the BMS PCB assembly (30) can be electrically connected only through the above-described configuration of the BDU housing (21).

[0101] The BDU component (22) substantially performs the role of the BDU assembly (20), i.e., the role of controlling the battery unit (not shown). The BDU component (22) is electrically connected to the battery unit (not shown) and can control the battery unit (not shown) in accordance with the calculated control information.

[0102] The BDU component (22) is coupled to the BDU housing (21). The BDU component (22) can be electrically connected to the BMS PCB assembly (30) by the above-described different configuration of the BDU housing (21) to receive calculated control information.

[0103] The BDU component (22) is accommodated in a space formed inside the upper cover (11). The BDU component (22) is covered by the upper cover (11) and is not exposed to the outside.

[0104] Referring again to FIGS. 1 and 2, the battery control unit (1) according to an embodiment of the present invention includes a BMS PCB assembly (30).

[0105] The BMS PCB assembly (30) calculates control information for controlling a battery unit (not shown). The control information calculated by the BMS PCB assembly (30) can be transmitted to the BDU assembly (20) and utilized to control the battery unit (not shown).

[0106] At this time, the BMS PCB assembly (30) is directly electrically connected to the BDU assembly (20). That is, the electrical connection between the BMS PCB assembly (30) and the BDU assembly (20) is not formed by a separate conductor member, but can be formed by the BMS PCB assembly (30) and the BDU assembly (20) being directly coupled.

[0107] That is, by the above combination, the battery control unit (1) according to the embodiment of the present invention can be configured by integrating the BDU and BMS.

[0108] The BMS PCB assembly (30) is coupled with the cover portion (10). Specifically, one side in the height direction of the BMS PCB assembly (30), the lower side in the illustrated embodiment, is coupled with the lower cover (12). The BMS PCB assembly (30) may be supported by the lower cover (12). A part of the BMS PCB assembly (30), i.e., the second PCB (200) to be described later, may be covered by the lower cover (12) and not be exposed to the outside.

[0109] The BMS PCB assembly (30) is coupled with the BDU assembly (20). Specifically, the other side in the height direction of the BMS PCB assembly (30), the upper side in the illustrated embodiment, is coupled with the BDU housing (21) of the BDU assembly (20).

[0110] As described above, some components of the BDU housing (21) are coupled to and energized with the BDU component (22). Therefore, it can be said that the first PCB (100) located on the other side, i.e., the upper side, of the BMS PCB assembly (30) is coupled to and energized with the BDU assembly (20).

[0111] The BMS PCB assembly (30) may have a shape corresponding to the shape of the cover portion (10) or the BDU assembly (20). In the illustrated embodiment, the BMS PCB assembly (30) has a three-dimensional shape in which the length in the front-back direction is shorter than the width in the left-right direction and the height in the up-down direction is greater.

[0112] At this time, as will be described later, the first PCB (100) and the second PCB (200) constituting the BMS PCB assembly (30) are formed in a plate shape, and it can be said that the BMS PCB assembly (30) is also formed in a plate shape.

[0113] The BMS PCB assembly (30) is directly electrically connected to the BDU assembly (20) and may include any configuration that can be used for calculated control information. In the embodiment illustrated in FIGS. 3 and 4, the BMS PCB assembly (30) includes a first PCB (100), a second PCB (200), and an insulating member (300). The first PCB (100), the insulating member (300), and the second PCB (200) are sequentially stacked in a direction from top to bottom.

[0114] That is, along the height direction of the BMS PCB assembly (30), i.e., the up-down direction, the first PCB (100) is placed facing the second PCB (200) with an insulating member (300) therebetween.

[0115] The first PCB (100) constitutes a part of the BMS PCB assembly (30). The first PCB (100) is a portion where the BMS PCB assembly (30) is coupled to the BDU assembly (20). The first PCB (100) is coupled to the BDU housing (21) and is electrically connected. Accordingly, it will be understood that the first PCB (100) is electrically connected to the BDU component (22). At this time, the first PCB (100) and the BDU housing (21) can be electrically connected to each other by their respective configurations without a separate additional configuration.

[0116] The first PCB (100) is coupled to the second PCB (200). The first PCB (100) can be coupled to the second PCB (200) and can be electrically connected. At this time, the first PCB (100) and the second PCB (200) can be electrically connected to each other by their respective configurations without any additional configuration.

[0117] That is, the BDU assembly (20), the first PCB (100), and the second PCB (200) can be directly connected to each other and electrically connected. Accordingly, the electrically connected state of the BDU assembly (20), the first PCB (100), and the second PCB (200) can be reliably maintained.

[0118] The first PCB (100) is coupled with an insulating member (300). Specifically, the first PCB (100) is supported by being secured on one side of the insulating member (300) in the height direction, that is, on the upper side in the illustrated embodiment. The first PCB (100) can be coupled with the insulating body (310) by a coupling member (350). The first PCB (100) can be at least partially accommodated in the first insulating space (320).

[0119] In the embodiment illustrated in FIGS. 5 to 7, the first PCB (100) includes a first PCB substrate (110), a first PCB terminal (120), a first PCB connector (130), a first PCB coupling connector (140), and a first fastening member coupling hole (150).

[0120] The first PCB substrate (110) constitutes the body of the first PCB (100). Other components of the first PCB (100) are combined to the first PCB substrate (110). The first PCB substrate (110) supports the other components of the first PCB (100).

[0121] A printed circuit may be formed on the first PCB substrate (110). The other components of the first PCB (100) coupled to the first PCB substrate (110) may be electrically connected to each other.

[0122] In the above embodiment, it can be said that the first PCB substrate (110) is provided as a printed circuit board (PCB).

[0123] The first PCB substrate (110) is supported by an insulating member (300). Specifically, the first PCB substrate (110) can be supported by being combined with an insulating body (310) of the insulating member (300). The first PCB substrate (110) is placed facing the second PCB substrate (210) with the insulating member (300) interposed therebetween.

[0124] The first PCB substrate (110) may have a shape corresponding to the shape of the BDU housing (21) or the insulating member (300). In the illustrated embodiment, the first PCB substrate (110) is provided in a polygonal plate shape with a length in the front-back direction being shorter than a width in the left-right direction and a thickness in the up-down direction.

[0125] The first PCB substrate (110) is coupled with the first PCB terminal (120) and the first PCB connector (130). In the illustrated embodiment, the first PCB terminal (120) and the first PCB connector (130) are positioned on one side of the first PCB substrate (110) in the thickness direction, i.e., the upper surface.

[0126] The first PCB substrate (110) is coupled with the first PCB coupling connector (140). In the illustrated embodiment, the first PCB coupling connector (140) is positioned on the other side in the thickness direction of the first PCB substrate (110), in the illustrated embodiment, on the lower surface.

[0127] A first fastening member joining hole (150) is formed in the first PCB substrate (110). In the illustrated embodiment, a plurality of first fastening member joining holes (150) are formed at each corner in the length direction and width direction of the first PCB substrate (110).

[0128] The first PCB terminal (120) is a configuration in which the first PCB (100) is connected to and powered by a part of the BDU assembly (20). The first PCB terminal (120) is connected to and powered by a part of the BDU housing (21).

[0129] The first PCB terminal (120) is coupled to the first PCB substrate (110). As described above, a printed circuit is formed on the first PCB substrate (110), and the first PCB terminal (120) can be electrically connected to other components of the first PCB (100), for example, the first PCB connector (130) and the first PCB coupling connector (140).

[0130] The first PCB terminal (120) may have any shape that can be coupled with and energized by the BDU assembly (20). In the illustrated embodiment, the first PCB terminal (120) has a vertical height, with the lower side thereof being coupled with and energized by the first PCB substrate (110), and the upper side thereof being coupled with and energized by the BDU assembly (20). The first PCB terminal (120) protrudes from one side of the first PCB substrate (110) in the height direction, that is, from the upper side in the illustrated embodiment.

[0131] A plurality of first PCB terminals (120) may be provided. The plurality of first PCB terminals (120) may be spaced apart from each other at different locations on the first PCB substrate (110) and may be electrically connected to the BDU assembly (20).

[0132] In the illustrated embodiment, the first PCB terminal (120) is positioned to be offset to the left and spaced apart in the front-back direction, and is composed of a total of 11, including one pair of groups each consisting of 4, one pair positioned on the left side of the front, and one pair positioned on the rear and spaced apart in the left-right direction.

[0133] The number and arrangement of the first PCB terminals (120) can be changed to correspond to the number and arrangement of the configurations provided in the BDU assembly (20) and electrically connected to the first PCB terminals (120).

[0134] The first PCB connector (130) is configured such that the first PCB (100) is connected to and energized with another component of the BDU assembly (20). The first PCB connector (130) is connected to and energized with a relay (not indicated in the drawing) provided in the BDU component (22).

[0135] Accordingly, it will be understood that the first PCB (100) is electrically connected to the BDU assembly (20) at different locations and with different configurations by the first PCB terminal (120) and the first PCB connector (130).

[0136] The first PCB connector (130) is coupled to the first PCB substrate (110). In an embodiment where a printed circuit is formed on the first PCB substrate (110), the first PCB connector (130) can be electrically connected to the first PCB terminal (120) and the first PCB coupling connector (140), respectively.

[0137] The first PCB connector (130) may be provided in any form that can be coupled to and electrically connected with a relay (not shown in the drawing) provided in the BDU component (22). In the illustrated embodiment, the first PCB connector (130) is provided in the form of a female connector, and can be electrically connected to a configuration of a relay (not shown in the drawing) provided in the form of a male connector. The first PCB connector (130) is formed to protrude from the upper surface of the first PCB substrate (110).

[0138] A plurality of first PCB connectors (130) may be provided. A plurality of first PCB connectors (130) may be spaced apart from each other and may be electrically connected to a plurality of relays (not given a drawing symbol), respectively.

[0139] In the illustrated embodiment, a pair of first PCB connectors (130) are provided. One first PCB connector (130) is positioned on the upper side of the first PCB substrate (110) and offset from the right edge. The other first PCB connector (130) is positioned on the upper side of the first PCB substrate (110) and spaced to the left from the one first PCB connector (130).

[0140] The number and arrangement of the first PCB connectors (130) can be changed in accordance with the number and arrangement of relays (not shown) provided in the BDU component (22).

[0141] The first PCB coupling connector (140) is a portion where the first PCB (100) is electrically coupled to the second PCB (200). Specifically, the first PCB coupling connector (140) is directly and electrically coupled to the second PCB coupling terminal (230). By this coupling, the first PCB (100) and the second PCB (200) can be directly coupled and electrically coupled without any additional configuration.

[0142] The first PCB coupling connector (140) is coupled to the first PCB substrate (110). In an embodiment where a printed circuit is formed on the first PCB substrate (110), the first PCB coupling connector (140) can be electrically connected to the first PCB terminal (120) and the first PCB connector (130), respectively.

[0143] By the above connection, the BDU assembly (20), the first PCB (100) and the second PCB (200) can be electrically connected, respectively.

[0144] The first PCB mating connector (140) may be provided in any form that can be coupled with and electrically connected to the second PCB mating terminal (230). In the illustrated embodiment, the first PCB mating connector (140) is provided in the form of a female connector and can be electrically connected with the second PCB mating terminal (230) provided in the form of a male connector. The first PCB mating connector (140) is formed to protrude from the lower surface of the first PCB substrate (110).

[0145] A plurality of first PCB coupling connectors (140) may be provided. The plurality of first PCB coupling connectors (140) are spaced apart from each other and can be electrically coupled to a plurality of second PCB coupling terminals (230), respectively.

[0146] In the illustrated embodiment, a pair of first PCB mating connectors (140) are provided. The pair of first PCB mating connectors (140) are positioned at the front of the first PCB substrate (110) and are spaced apart in the width direction of the first PCB substrate (110), i.e., in the left-right direction.

[0147] The number and arrangement of the first PCB coupling connectors (140) can be changed to correspond to the number and arrangement of the second PCB coupling terminals (230).

[0148] The first fastening member joining hole (150) is configured to join the first PCB (100) with the joining member (350) provided on the insulating member (300). The joining member (350) can be penetrated and joined into the first fastening member joining hole (150). To this end, the first fastening member joining hole (150) can be formed to penetrate in the thickness direction of the first PCB substrate (110), i.e., in the vertical direction.

[0149] The first fastening member joint hole (150) may have any shape to which the fastening member (350) can be joined. In the illustrated embodiment, the first fastening member joint hole (150) is formed as a space in the shape of a disk having a circular cross-section and a thickness in the vertical direction.

[0150] A plurality of first fastening member joining holes (150) may be formed. The plurality of first fastening member joining holes (150) may be positioned at different locations and may be joined to the plurality of joining members (350), respectively. In the illustrated embodiment, a total of four first fastening member joining holes (150) are formed.

[0151] A pair of first fastening member joining holes (150) are positioned on one side of the first PCB substrate (110) in the width direction, on the left side in the illustrated embodiment, and are spaced apart in the length direction, i.e., in the front-to-back direction. Another pair of first fastening member joining holes (150) are positioned on the other side of the first PCB substrate (110) in the width direction, on the right side in the illustrated embodiment, and are spaced apart in the length direction, i.e., in the front-to-back direction.

[0152] The number and arrangement of the first fastening member joining holes (150) can be changed to correspond to the arrangement of the second fastening member joining holes (240) or the number and arrangement of the joining members (350).

[0153] The second PCB (200) constitutes another part of the BMS PCB assembly (30). The second PCB (200) is coupled to the first PCB (100) and is electrically connected. As described above, the first PCB (100) can be coupled to the BDU assembly (20) and is electrically connected. Therefore, it will be understood that the BDU assembly (20) and the BMS PCB assembly (30) are coupled to and are electrically connected as the second PCB (200) and the first PCB (100) are coupled to and are electrically connected.

[0154] At this time, the second PCB (200) and the first PCB (100) can be electrically connected to each other by their respective configurations without any additional configuration. In other words, the second PCB (200) and the first PCB (100) are directly electrically connected. Accordingly, as described above, the electrical connection and bonding state of the first PCB (100) and the second PCB (200) can be reliably maintained.

[0155] The second PCB (200) is coupled to the insulating member (300). Specifically, the second PCB (200) is coupled to the other side in the height direction of the insulating member (300), the lower side in the illustrated embodiment, to support the insulating member (300). The second PCB (200) can be coupled to the insulating body (310) by the coupling member (350). The second PCB (200) can be at least partially accommodated in the second insulating space (330).

[0156] In the embodiments illustrated in FIGS. 8 to 11, the second PCB (200) includes a second PCB substrate (210), a second PCB connector (220), a second PCB coupling terminal (230), and a second fastening member coupling hole (240).

[0157] The second PCB substrate (210) constitutes the body of the second PCB (200). Other components of the second PCB (200) are combined to the second PCB substrate (210). The second PCB substrate (210) supports the other components of the second PCB (200).

[0158] A printed circuit may be formed on the second PCB substrate (210). The other components of the second PCB (200) coupled to the second PCB substrate (210) may be electrically connected to each other. In the above embodiment, the second PCB substrate (210) may be provided as a printed circuit board.

[0159] The second PCB substrate (210) is coupled with an insulating member (300). Specifically, the second PCB substrate (210) can support the insulating body (310) of the insulating member (300) from the lower side. The second PCB substrate (210) is placed facing the first PCB substrate (110) with the insulating member (300) interposed therebetween.

[0160] The second PCB substrate (210) may have a shape corresponding to the shape of the insulating member (300). In the illustrated embodiment, the second PCB substrate (210) is provided in a polygonal shape having a length in the front-back direction, a width in the left-right direction, and a thickness in the up-down direction.

[0161] The second PCB substrate (210) is coupled with the second PCB connector (220) and the second PCB coupling terminal (230). In the illustrated embodiment, the second PCB connector (220) and the second PCB coupling terminal (230) are positioned on one side of the second PCB substrate (210) in the thickness direction, i.e., the upper surface.

[0162] A second fastening member joining hole (240) is formed in the second PCB substrate (210). In the illustrated embodiment, the second fastening member joining hole (240) is formed at a position adjacent to each edge in the length direction and width direction of the second PCB substrate (210).

[0163] The second PCB connector (220) is configured to connect the second PCB (200) to the outside so that it can be electrically connected. A connector (not shown) that is connected to an external control power source (not shown) can be coupled to and electrically connected to the second PCB connector (220).

[0164] The second PCB connector (220) is coupled to the second PCB substrate (210). As described above, a printed circuit is formed on the second PCB substrate (210), and the second PCB connector (220) can be electrically connected to another component of the second PCB (200), for example, the second PCB coupling terminal (230).

[0165] The second PCB connector (220) may be positioned in the connector receiving opening (314) of the insulating body (310). The second PCB connector (220) may be surrounded by connector guide portions (313) on the left and right sides of the insulating body (310) in the width direction, in the illustrated embodiment.

[0166] The second PCB connector (220) may have any shape that can be connected to and powered by an external control power source (not shown). In the illustrated embodiment, the second PCB connector (220) is provided in the form of a female connector, and can be connected to and powered by a connector (not shown) that is provided in the form of a male connector, i.e., a connector (not shown) that is connected to an external control power source (not shown).

[0167] A plurality of second PCB connectors (220) may be provided. The plurality of second PCB connectors (220) may be spaced apart from each other at different locations on the second PCB substrate (210) and may be electrically connected to an external control power source (not shown).

[0168] In the illustrated embodiment, the second PCB connectors (220) are provided in two pairs, each pair including one having a relatively long width and the other having a relatively short width. The second PCB connectors (220) of each pair are spaced apart in the width direction of the second PCB substrate (210), i.e., in the left-right direction in the illustrated embodiment, and each connector constituting each pair is also spaced apart in the left-right direction.

[0169] The number and arrangement of the second PCB connectors (220) can be changed in accordance with the number and arrangement of connectors (not shown) coupled with the control power (not shown).

[0170] The second PCB coupling terminal (230) is a portion where the second PCB (200) is electrically coupled to the first PCB (100). Specifically, the second PCB coupling terminal (230) is directly and electrically coupled to the first PCB coupling connector (140). By this coupling, the second PCB (200) and the first PCB (100) can be directly coupled and electrically coupled without any additional configuration.

[0171] The second PCB coupling terminal (230) is coupled to the second PCB substrate (210). In an embodiment where a printed circuit is formed on the second PCB substrate (210), the second PCB coupling terminal (230) can be electrically connected to the second PCB connector (220). By this connection, an external control power source (not shown) can be electrically connected to the BDU assembly (20), the first PCB (100), and the second PCB (200), respectively.

[0172] The second PCB coupling terminal (230) may be provided in any shape that can be coupled with and electrically connected to the first PCB coupling connector (140). In the illustrated embodiment, the second PCB coupling terminal (230) is provided in the shape of a male connector and can be electrically connected with the first PCB coupling connector (140) provided in the shape of a female connector. The second PCB coupling terminal (230) is formed to protrude from the upper surface of the second PCB substrate (210).

[0173] A plurality of second PCB coupling terminals (230) may be provided. The plurality of second PCB coupling terminals (230) are spaced apart from each other and can be electrically coupled to a plurality of first PCB coupling connectors (140), respectively.

[0174] In the illustrated embodiment, a pair of second PCB coupling terminals (230) are provided. The pair of second PCB coupling terminals (230) are positioned on the front side of the second PCB substrate (210) and are spaced apart in the width direction of the second PCB substrate (210), i.e., left and right in the illustrated embodiment.

[0175] The number and arrangement of the second PCB coupling terminals (230) can be changed to correspond to the number and arrangement of the first PCB coupling connectors (140).

[0176] The second fastening member joining hole (240) is configured to join the second PCB (200) with the joining member (350) provided on the insulating member (300). The joining member (350) can be penetrated and joined into the second fastening member joining hole (240). To this end, the second fastening member joining hole (240) can be formed to penetrate in the thickness direction of the second PCB substrate (210), i.e., in the vertical direction.

[0177] The second fastening member joining hole (240) may have any shape to which the joining member (350) can be joined. In the illustrated embodiment, the second fastening member joining hole (240) is formed as a space in the shape of a disk having a circular cross-section and a thickness in the vertical direction.

[0178] A plurality of second fastening member joining holes (240) may be formed. The plurality of second fastening member joining holes (240) are positioned at different locations and are respectively joined to the plurality of joining members (350). In the illustrated embodiment, a total of four second fastening member joining holes (240) are formed.

[0179] A pair of second fastening member joining holes (240) are positioned on one side of the second PCB substrate (210) in the width direction, on the left side in the illustrated embodiment, and spaced apart in the length direction, i.e., in the front-to-back direction. Another pair of second fastening member joining holes (240) are positioned on the other side of the second PCB substrate (210) in the width direction, on the right side in the illustrated embodiment, and spaced apart in the length direction, i.e., in the front-to-back direction.

[0180] The number and arrangement of the second fastening member joining holes (240) can be changed to correspond to the arrangement of the first fastening member joining holes (150) or the number and arrangement of the joining members (350).

[0181] The insulating member (300) constitutes the remainder of the BMS PCB assembly (30). The insulating member (300) is coupled to the first PCB (100) and the second PCB (200) to support them, respectively. The insulating member (300) is positioned between the first PCB (100) and the second PCB (200) along the height direction of the BMS PCB assembly (30), i.e., the vertical direction in the illustrated embodiment. The insulating member (300) is coupled to the first PCB (100) and the second PCB (200) to support them, respectively.

[0182] The insulating member (300) can separate the first PCB (100) and the second PCB (200) by a predetermined distance. That is, the insulating member (300) can function as a type of spacer. At the same time, the insulating member (300) can be formed of an electrically insulating material and configured to prevent arbitrary current conduction between the first PCB (100) and the second PCB (200). Accordingly, current conduction between other components of the first PCB (100) and the second PCB (200) can be prevented except for the first PCB coupling connector (140) and the second PCB coupling terminal (230).

[0183] Accordingly, even when the BDU assembly (20) and the BMS PCB assembly (30) of the battery control unit (1) according to an embodiment of the present invention are configured as one body, arbitrary current conduction between the BDU assembly (20) and the BMS PCB assembly (30) can be prevented. As a result, the size of the battery control unit (1) can be reduced, while the insulation reliability between each component can be improved.

[0184] Furthermore, since the insulating member (300) supports the first PCB (100) and the second PCB (200), random shaking of the first PCB (100) and the second PCB (200) can be prevented. As a result, the current carrying state of the first PCB (100) and the second PCB (200) can be stably maintained.

[0185] In the embodiments illustrated in FIGS. 12 to 14, the insulating member (300) includes an insulating body (310), a first insulating space (320), a second insulating space (330), an insulating joint (340), and a joint member (350).

[0186] The insulating body (310) constitutes the body of the insulating member (300). Other components of the insulating member (300) are formed or combined in the insulating body (310). In the illustrated embodiment, a first insulating space (320), a second insulating space (330), and an insulating bonding hole (340) are formed inside the insulating body (310). A bonding member (350) is combined in the insulating bonding hole (340) formed in the insulating body (310).

[0187] The insulating body (310) is coupled with the first PCB (100). Specifically, the insulating body (310) is coupled with the first PCB substrate (110) by a coupling member (350) coupled with an insulating coupling hole (340) formed therein. The insulating body (310) supports the first PCB (100) and at least partially accommodates the configuration of the first PCB (100).

[0188] The insulating body (310) is coupled to the second PCB (200). Specifically, the insulating body (310) is coupled to the second PCB substrate (210) by a coupling member (350) coupled to an insulating coupling hole (340) formed therein. The insulating body (310) may be supported by the second PCB (200).

[0189] The insulating body (310) may be any shape that is coupled to the first PCB (100) and the second PCB (200) and supports or can be supported by them. In the illustrated embodiment, the insulating body (310) is a three-dimensional shape in which the length in the front-back direction is longer than the width in the left-right direction and the height in the up-down direction is greater.

[0190] The insulating body (310) may be formed of an electrically insulating material. The first PCB (100) and the second PCB (200) that are coupled to the insulating body (310) are intended to prevent current conduction by other components other than the first PCB coupling connector (140) and the second PCB coupling terminal (230).

[0191] The insulating body (310) may be formed to have a predetermined height, i.e., a vertical length in the illustrated embodiment. Accordingly, the insulating body (310) may separate the first PCB (100) and the second PCB (200) by that height. Accordingly, a sufficient distance may be secured to electrically insulate the different configurations of the first PCB (100) and the second PCB (200).

[0192] In the illustrated embodiment, the insulating body (310) includes an insulating surface (311), an insulating edge (312), a connector guide portion (313), and a connector receiving opening (314).

[0193] The insulating surface (311) constitutes a portion of the insulating body (310) that is exposed to the outside. The insulating surface (311) divides the space formed inside the insulating body (310) in the height direction, or in the vertical direction in the illustrated embodiment. In the illustrated embodiment, the insulating surface (311) divides the space formed inside the insulating body (310) into a first insulating space (320) and a second insulating space (330).

[0194] The insulating surface (311) surrounds the first insulating space (320) and the second insulating space (330) formed inside the insulating body (310) on one side and the other side in the height direction, respectively.

[0195] Specifically, the insulating surface (311) surrounds the first insulating space (320) on one side in the height direction, i.e., on the lower side in the illustrated embodiment. In addition, the insulating surface (311) surrounds the second insulating space (330) on the other side in the height direction, i.e., on the upper side in the illustrated embodiment.

[0196] As will be described later, the first insulating space (320) and the second insulating space (330) are formed with the other side opposite to the insulating surface (311) open. Therefore, it will be understood that the insulating surface (311) is disposed inside the insulating body (310), but is exposed to the outside.

[0197] The insulating surface (311) may have a shape corresponding to the shape of the insulating body (310). In the illustrated embodiment, the insulating surface (311) is formed in a plate shape with a length in the front-back direction being longer than a width in the left-right direction and a thickness in the up-down direction.

[0198] An insulating bonding hole (340) is formed in the insulating surface (311). A plurality of insulating bonding holes (340) can be formed penetrating through different locations of the insulating surface (311). A bonding member (350) is bonded to each insulating bonding hole (340).

[0199] The insulating edge (312) constitutes the outer periphery of the insulating body (310). The insulating edge (312) extends to surround the space formed inside the insulating body (310) from the outside. The insulating edge (312) is continuous with the insulating surface (311).

[0200] The insulating edge (312) may be formed to protrude in the height direction, i.e., in the vertical direction in the illustrated embodiment, compared to the insulating surface (311). Accordingly, the first PCB (100) is seated on the insulating edge (312), and the configuration of the first PCB (100) positioned in the first insulating space (320) may be positioned to be spaced apart in the height direction from the insulating surface (311). Similarly, as the insulating edge (312) is seated on the second PCB (200), the configuration of the second PCB (200) positioned in the second insulating space (330) may be positioned to be spaced apart in the height direction from the insulating surface (311).

[0201] The insulating edge (312) can surround the first insulating space (320) from the outside. The insulating edge (312) can protrude upward compared to the insulating surface (311) and extend along the outer periphery of the insulating surface (311) and the connector guide portion (313).

[0202] The insulating edge (312) can surround the second insulating space (330) from the outside. The insulating edge (312) can protrude downward compared to the insulating surface (311) and extend along the outer periphery of the insulating surface (311) and the connector guide portion (313).

[0203] The connector guide portion (313) guides the second PCB connector (220) of the second PCB (200). By virtue of the connector guide portion (313), the second PCB connector (220) is not exposed to the outside in the longitudinal or width direction of the insulating body (310). In the illustrated embodiment, the connector guide portion (313) is formed to surround the second PCB connector (220) along the width direction of the insulating body (310), i.e., the left-right direction.

[0204] The connector guide portion (313) is continuous with the insulating surface (311). The connector guide portion (313) is formed to extend from one side of the length direction of the insulating surface (311), in the illustrated embodiment, from the rear side to the rear side.

[0205] The connector guide portion (313) is continuous with the insulating edge (312). The insulating edge (312) can extend along the outer periphery of the connector guide portion (313).

[0206] A plurality of connector guide portions (313) may be formed. The plurality of connector guide portions (313) may be spaced apart from each other in the left and right directions in the illustrated embodiment, and may extend outward in a direction that guides the second PCB connector (220). In the illustrated embodiment, the connector guide portions (313) are provided in pairs and spaced apart from each other in the left and right directions. The pair of connector guide portions (313) surround the second PCB connector (220) on the left and right sides, respectively.

[0207] The space formed between a pair of connector guide portions (313) can be defined as a connector receiving opening (314).

[0208] The connector receiving opening (314) at least partially receives the second PCB connector (220) of the second PCB (200). The second PCB connector (220) can be exposed to the outside while being received in the connector receiving opening (314). Accordingly, the second PCB connector (220) can be electrically connected to an external control power source (not shown) while being received in the connector receiving opening (314).

[0209] A connector receiving opening (314) is positioned between a pair of connector guide portions (313). One longitudinal side of the connector receiving opening (314), the front side in the illustrated embodiment, is surrounded by an insulating edge (312). The other longitudinal side of the connector receiving opening (314), the rear side in the illustrated embodiment, is formed open so as to be electrically connected to an external control power source (not illustrated).

[0210] One side in the height direction of the connector receiving opening (314), the upper side in the illustrated embodiment, is formed open. The other side in the height direction of the connector receiving opening (314), the lower side in the illustrated embodiment, is closed by the second PCB substrate (210).

[0211] Each side of the width direction of the connector receiving opening (314), the left and right sides in the illustrated embodiment, is surrounded by a pair of connector guide portions (313).

[0212] As the second PCB connector (220) is formed with a connector receiving opening (314), the height of the entire second PCB (200) and insulating member (300) coupled to each other can be reduced. Accordingly, the height of the entire BMS PCB assembly (30) can also be reduced, thereby achieving miniaturization.

[0213] The first insulating space (320) accommodates a portion of the first PCB (100). The above-described portion of the first PCB (100) may be accommodated in the first insulating space (320) and may not be exposed to the outside. In one embodiment, the first insulating space (320) may accommodate a lower portion of the first PCB terminal (120) and a lower portion of the first PCB connector (130).

[0214] The first insulating space (320) may be defined as a space formed inside the insulating body (310) and divided vertically. In the illustrated embodiment, the first insulating space (320) is defined as a space located on one side, i.e., the upper side, facing the first PCB (100) among the divided small spaces.

[0215] The first insulating space (320) is surrounded by an insulating surface (311) and an insulating edge (312). Each side in the longitudinal and width directions of the first insulating space (320), the front side, the rear side, the left side, and the right side in the illustrated embodiment, are surrounded by the insulating edge (312). One side in the height direction of the first insulating space (320), the upper side in the illustrated embodiment, is formed as open.

[0216] The other side in the height direction of the first insulating space (320), the lower side in the illustrated embodiment, is surrounded by an insulating surface (311). The first insulating space (320) is arranged to face the second insulating space (330) with the insulating surface (311) therebetween.

[0217] The first PCB (100) supported by the upper end of the insulating corner (312) can be spaced apart from the second PCB (200) by a sufficient distance by the first insulating space (320).

[0218] The second insulating space (330) accommodates a portion of the configuration of the second PCB (200). The configuration of the second PCB (200) may be accommodated in the second insulating space (330) and may not be arbitrarily exposed to the outside.

[0219] The second insulating space (330) may be defined as a space formed inside the insulating body (310) and partitioned in the vertical direction. In the illustrated embodiment, the second insulating space (330) is defined as a space located on the other side, i.e., the lower side, facing the second PCB (200) among the partitioned small spaces.

[0220] The second insulating space (330) is surrounded by an insulating surface (311) and an insulating edge (312). Each side in the longitudinal and width directions of the second insulating space (330), the front side, the rear side, the left side, and the right side in the illustrated embodiment, are surrounded by the insulating edge (312). One side in the height direction of the second insulating space (330), the lower side in the illustrated embodiment, is formed open.

[0221] The other side in the height direction of the second insulating space (330), in the illustrated embodiment, the upper side, is surrounded by an insulating surface (311). The second insulating space (330) is arranged to face the first insulating space (320) with the insulating surface (311) therebetween.

[0222] The second PCB (200) supported by the lower end of the insulating corner (312) can be spaced apart from the first PCB (100) by a sufficient distance by the second insulating space (330).

[0223] The insulating joint hole (340) is a portion where the insulating member (300) is joined to the first PCB (100) and the second PCB (200). The insulating joint hole (340) is formed inside the insulating surface (311) provided in the insulating body (310). In one embodiment, the insulating joint hole (340) may be formed to penetrate in the thickness direction of the insulating surface (311), i.e., in the vertical direction in the illustrated embodiment.

[0224] A bonding member (350) is bonded to the insulating bonding hole (340). In one embodiment, the bonding member (350) may be at least partially penetrated into the insulating bonding hole (340).

[0225] The insulating joint (340) may have any shape that can be combined with the joint member (350). In the illustrated embodiment, the insulating joint (340) has the shape of a pair of arcs that are arranged to face each other in the left-right direction and whose inner angles are less than 180°. In the above embodiment, the joint member (350) is provided in the form of a bar with an outer diameter of an end portion larger than the outer diameter of the remaining portion, so that it can be snap-fitted to the insulating joint (340).

[0226] In another embodiment, the insulating joint (340) has a circular cross-section and a vertical thickness, and may have threads formed on its inner periphery. In the above embodiment, the joint member (350) is provided as a screw member and may be screw-connected to the insulating joint (340).

[0227] A plurality of insulating bonding holes (340) may be formed. The plurality of insulating bonding holes (340) may be arranged at different locations and may be respectively bonded to a plurality of bonding members (350). At this time, some of the plurality of insulating bonding holes (340) may be bonded to a bonding member (350) bonded to the first PCB (100), and the remainder of the plurality of insulating bonding holes (340) may be bonded to a bonding member (350) bonded to the second PCB (200).

[0228] In the illustrated embodiment, the insulating bonding holes (340) are formed into a pair of groups, each consisting of four, for a total of eight. One group is positioned adjacent to each edge of the insulating surface (311) in the length direction and width direction, and is coupled with a bonding member (350) that is coupled to the first PCB (100). One of the groups may be arranged to overlap the first fastening member bonding hole (150) in the vertical direction.

[0229] Another group is arranged adjacent to each edge of the length direction and width direction of the insulating surface (311), spaced apart from any one of the groups, and is joined to a joining member (350) that is joined to the second PCB (200). The other group may be arranged to overlap the second fastening member joining hole (240) in the vertical direction.

[0230] The joining member (350) is a configuration in which the insulating member (300) is joined to the first PCB (100) and the second PCB (200). The joining member (350) joins the first PCB (100) and the insulating body (310). In addition, the joining member (350) joins the second PCB (200) and the insulating body (310).

[0231] A plurality of joining members (350) may be provided. The plurality of joining members (350) may join the first PCB (100) and the second PCB (200) to the insulating body (310) at different locations, respectively.

[0232] The joining member (350) that is joined to the first PCB (100) is joined to the first joining member joining hole (150) and the insulating joining hole (340) of one of the groups, respectively. In one embodiment, the joining member (350) may be penetrated or screw-joined to the first joining member joining hole (150) and the insulating joining hole (340) of one of the groups.

[0233] The joining member (350) coupled with the second PCB (200) is coupled with the second fastening member joining hole (240) and the insulating joining hole (340) of the other group, respectively. In one embodiment, the joining member (350) may be penetrated or screw-coupled to the second fastening member joining hole (240) and the insulating joining hole (340) of the other group.

[0234] At this time, the joining member (350) that is joined to the first PCB (100) and the joining member (350) that is joined to the second PCB (200) can be joined to the insulating joining hole (340) independently of each other.

[0235] The joining member (350) may be provided in any shape that can join the insulating body (310) to the first PCB (100) and the second PCB (200). In one embodiment, the joining member (350) may be formed in the shape of a rod that is formed to be snap-coupled, or may be provided as a screw member.

[0236] In an embodiment in which the connecting member (350) is formed in the form of a rod that is formed to be snap-coupled, the connecting member (350) may extend in the vertical direction, and the diameter of one end in the extending direction may be formed to be larger than the diameter of the other end. In addition, in the above embodiment, each connecting member (350) may be configured as a pair that each has a semicircular cross-section and is spaced apart in the front-back direction or the left-right direction.

[0237] In the above embodiment, each part of the pair may be pressed toward each other to move or deform in shape and may be coupled to the first fastening member coupling hole (150) or the second fastening member coupling hole (240). In addition, when the external force is released, each part of the pair may be moved or deformed in a direction opposite to each other to be coupled to the first fastening member coupling hole (150) and the second fastening member coupling hole (240).

[0238] In one embodiment, the joining member (350) may be formed integrally with the insulating body (310). That is, the joining member (350) may be formed so as to penetrate the insulating joint hole (340). In the above embodiment, it will be understood that the joining member (350) and the insulating body (310) may be formed as a single member.

[0239]

[0240] Referring to FIGS. 15 and 16, a process of assembling a BMS PCB assembly (30) according to an embodiment of the present invention is illustrated as an example.

[0241] In the illustrated embodiment, first, the second PCB (200) positioned at the lower side is coupled with the insulating member (300). At this time, the second fastening member coupling hole (240) and the insulating coupling hole (340) of the other group are arranged to overlap in the vertical direction, and then the coupling member (350) can be coupled to each of them.

[0242] Next, the first PCB (100) positioned on the upper side is joined to the second PCB (200) and the insulating member (300). At this time, the first fastening member joining hole (150) and the insulating joining hole (340) of one of the groups are arranged to overlap in the vertical direction, and then the joining member (350) can be joined to each of them.

[0243] At the same time, the first PCB mating connector (140) is connected to the second PCB mating terminal (230) positioned vertically downward and is energized.

[0244] Although not shown, it will be understood that the first PCB (100) may be first joined to the insulating member (300), and then the second PCB (200) may be joined to the first PCB (100) and the insulating member (300).

[0245]

[0246] Referring to FIGS. 17 to 24, a BMS PCB assembly (30) formed by combining a first PCB (100), a second PCB (200), and an insulating member (300) is illustrated.

[0247] The first PCB (100) is supported by being seated on an insulating corner (312). Among the components of the first PCB (100), the first PCB substrate (110) is arranged to cover the insulating body (310), the lower portion of the first PCB terminal (120) is positioned in the first insulating space (320), and the first PCB coupling connector (140) is positioned on the outer side of the front of the insulating body (310).

[0248] In addition, the first fastening member joining hole (150) is arranged to overlap some of the plurality of insulating joining holes (340) in the vertical direction, and the joining member (350) is joined to the first fastening member joining hole (150) and the insulating joining hole (340), respectively.

[0249] The second PCB (200) is connected to the lower side of the insulating member (300) and supports the insulating member (300). Among the configurations of the second PCB (200), the second PCB connector (220) is received in the connector receiving opening (314) and is surrounded on each side in the width direction, i.e., the left and right sides, by the connector guide portion (313).

[0250] The second PCB connector (220) is exposed on one longitudinal side of the connector receiving opening (314), that is, the rear side in the illustrated embodiment, and can be electrically connected to an external control power source (not shown). As described above, as the second PCB connector (220) is received in the connector receiving opening (314), the height of the entire BMS PCB assembly (30) can be reduced by the height of the second PCB connector (220).

[0251] In addition, the second fastening member joining hole (240) is arranged to overlap with the remaining of the plurality of insulating joining holes (340) in the vertical direction, and the joining member (350) is joined with the second fastening member joining hole (240) and the insulating joining hole (340), respectively.

[0252] At this time, as best illustrated in Fig. 23, some of the joining members (350) joined with the first joining member joining hole (150) and some of the joining members (350) joined with the second joining member joining hole (240) may be arranged to overlap in the vertical direction, and the remainder may be arranged to be spaced apart in the vertical direction.

[0253] In any case, it is sufficient if the first PCB (100), the second PCB (200) and the insulating member (300) can be joined while forming a minimum height.

[0254]

[0255] Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this will also be considered to fall within the spirit of the present invention.

[0256] 1: Battery control unit 10: Cover

[0257] 11: Top cover 12: Bottom cover

[0258] 20: BDU assembly 21: BDU housing

[0259] 22: BDU component 30: BMS PCB assembly

[0260] 100: 1st PCB 110: 1st PCB substrate

[0261] 120: 1st PCB terminal 130: 1st PCB connector

[0262] 140: First PCB mating connector 150: First fastening member mating hole

[0263] 200: Second PCB 210: Second PCB substrate

[0264] 220: Second PCB connector 230: Second PCB mating terminal

[0265] 240: Second fastening member joint hole 300: Insulating member

[0266] 310: Insulating body 311: Insulating surface

[0267] 312: Insulating corner 313: Connector guide

[0268] 314: Connector receiving opening 320: First insulating space

[0269] 330: Second insulation space 340: Insulation joint hole

[0270] 350: Joining member

Claims

A first PCB electrically connected to the external BDU assembly; A second PCB electrically connected to the first PCB; and An insulating member positioned between the first PCB and the second PCB and coupled to the first PCB and the second PCB, respectively, is included. The first PCB, the insulating member, and the second PCB are sequentially stacked along the height direction. BMS PCB assembly. In the first paragraph, The above insulating material is, An insulating body supporting the first PCB and supported by the second PCB; An insulating joint formed through the interior of the insulating body; and Including a joining member joined to the first PCB or the second PCB and the insulating joining hole, BMS PCB assembly. In the second paragraph, The first PCB includes a first PCB coupling connector electrically coupled to the second PCB, The second PCB includes a second PCB coupling terminal electrically coupled to the first PCB coupling connector, The first PCB coupling connector and the second PCB coupling terminal are positioned on the outside of the insulating member along the horizontal direction. BMS PCB assembly. In the third paragraph, The above first PCB, A first PCB substrate at least partially covering the insulating member and to which the first PCB mating connector is electrically connected; and It includes a first fastening member joining hole formed through the inside of the first PCB substrate, The above insulating bonding holes are formed in multiple numbers, and some of the multiple insulating bonding holes are arranged to overlap with the first fastening member bonding holes along the height direction. The above-mentioned joining member penetrates the first fastening member joining hole and is joined to the insulating joining hole. BMS PCB assembly. In the third paragraph, The above second PCB, A second PCB substrate at least partially covered by the insulating member and to which the second PCB bonding terminal is electrically connected; and It includes a second fastening member joining hole formed through the inside of the second PCB substrate, The above insulating bonding holes are formed in multiple numbers, and some of the multiple insulating bonding holes are arranged to overlap with the second fastening member bonding holes along the height direction. The above-mentioned joining member penetrates the second fastening member joining hole and is joined to the insulating joining hole. BMS PCB assembly. In the third paragraph, The above-mentioned joining member is, It is composed of a pair of parts spaced apart in the horizontal direction, and each of the pair of parts extends in the height direction, but the diameter of the end is formed to be larger than the diameter of the other part. The insulating joint is configured to be snap-fitted with the first PCB and the second PCB. BMS PCB assembly. In the third paragraph, The above-mentioned connecting member is provided as a screw member, The above insulating joint is configured to be screw-joined with the first PCB and the second PCB. BMS PCB assembly. In the third paragraph, The above insulating material is, A first insulating space formed inside the insulating body, one side of which is open and faces the first PCB; and A second insulating space formed inside the insulating body, physically partitioned from the first insulating space, and having one side facing the second PCB open, BMS PCB assembly. In paragraph 8, The above insulating body, An insulating surface positioned between the first insulating space and the second insulating space along the height direction, physically partitioning the first PCB and the second PCB; and Including an insulating edge extending along the outer periphery of the insulating surface and protruding in the height direction compared to the insulating surface, The first PCB is mounted on one end of the insulating edge in the height direction, and the other end of the insulating edge in the height direction is mounted on the second PCB. BMS PCB assembly. In paragraph 9, The above insulating body, A pair of connector guide portions extending from the outer periphery of the insulating surface to one side and spaced apart along the other side; and A connector receiving opening formed between a pair of the above connector guide portions and configured to receive a second PCB connector provided on the second PCB, The above connector receiving opening is, One side opposite to the above insulating surface is formed open, BMS PCB assembly. A cover portion having a space formed inside; A BDU assembly accommodated in the above cover portion and electrically connected to an external battery unit; and A BMS PCB assembly is coupled to the BDU assembly and electrically connected, and is supported by the cover portion. The above BDU assembly is, A BDU component accommodated in the above cover portion and electrically connected to the battery unit; and A BDU housing is coupled to the cover portion, positioned between the BDU component and the BMS PCB assembly, and is coupled to and energized by the BDU component and the BMS PCB assembly, respectively. The above BMS PCB assembly is, A first PCB electrically connected to the BDU assembly; A second PCB electrically connected to the first PCB; and An insulating member positioned between the first PCB and the second PCB and coupled to the first PCB and the second PCB, respectively, is included. The first PCB includes a first PCB coupling connector electrically coupled to the second PCB, The second PCB includes a second PCB coupling terminal electrically coupled to the first PCB coupling connector, The above insulating material is, A configuration in which other configurations of the first PCB, excluding the first PCB coupling connector, and other configurations of the second PCB, excluding the second PCB coupling terminal, are configured to insulate, Battery control unit. In Article 11, The above first PCB, A first PCB substrate at least partially covering the insulating member and to which the first PCB mating connector is electrically connected; A first PCB terminal electrically coupled to the first PCB substrate and extending toward the BDU housing to electrically couple with the BDU component; and A first PCB connector electrically coupled to the first PCB substrate and protruding toward the BDU housing to be electrically coupled to the BDU component, Battery control unit. In Article 11, The above second PCB, A second PCB substrate at least partially covered by the insulating member and to which the second PCB bonding terminal is electrically connected; and A second PCB connector electrically coupled to the second PCB substrate and positioned on the outside of the insulating member to be electrically coupled to an external control power source, Battery control unit.

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