Battery module

Abstract

The battery module according to the present invention comprises: a busbar; a busbar frame on which the busbar is mounted; a substrate comprising a first substrate extension part connected to the busbar and supported by the busbar frame, a bent substrate part that is bent at the end of the first substrate extension part, and a second substrate extension part extending from the bent substrate part, the substrate forming an inner space surrounded by the first substrate extension part, the bent substrate part, and the second substrate extension part; a fuse mounted on the second substrate extension part and protruding toward the inner space; and a guide structure including a blocking part positioned in the inner space to prevent the fuse from being in contact with the first substrate extension part.

Description

battery module

[0001] [Cross-reference with related applications]

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2023-0119963, filed September 8, 2023, and Korean Patent Application No. 10-2024-0062385, filed May 13, 2024, the entire contents of which are incorporated herein by reference.

[0003] [Technical Field]

[0004] The present invention relates to a battery module. More specifically, the invention relates to a battery module including a substrate connected to a bus bar.

[0005] With the technological development and increasing demand for electric vehicles, mobile devices, and other devices, the demand for secondary batteries as an energy source is increasing. Unlike primary batteries, secondary batteries can be recharged and reused after a single use. A secondary battery consists of an anode and a cathode. When a metal is oxidized at the anode, electricity is generated by the movement of electrons released from the metal. The oxidized metal moves to the cathode through the electrolyte and is reduced.

[0006] To manufacture such a secondary battery, an electrode active material slurry is first applied to a positive electrode current collector and a negative electrode current collector to manufacture a positive electrode and a negative electrode, which are then laminated on both sides of a separator to form an electrode assembly. The electrode assembly is then housed in a battery case, filled with electrolyte, and sealed.

[0007] Commonly used secondary batteries include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of these unit secondary batteries ranges from approximately 2.5 V to 4.2 V.

[0008] Therefore, when a higher output voltage is required, a secondary battery module is formed by connecting multiple secondary batteries, and the battery pack is manufactured by assembling multiple battery modules.

[0009] In order for the secondary cells to be electrically connected within the battery module, the electrode leads are interconnected, and the connecting portions are welded to maintain such connection. Furthermore, the battery module may have parallel and / or series electrical connections between the secondary cells, and for this purpose, one end of the electrode leads is fixed in contact with a bus bar for electrical connection between each secondary cell by welding or the like.

[0010] Furthermore, electrical connections between secondary batteries are often established by joining electrode leads to bus bars. In this case, to electrically connect secondary batteries in parallel, electrode leads of the same polarity are connected and joined together, and to electrically connect secondary batteries in series, electrode leads of different polarities are connected and joined together. In other words, the bus bar is electrically connected to multiple electrode leads provided on multiple secondary batteries, and performs the function of outputting electrical energy or collecting electrical signals from each secondary battery.

[0011] A battery module may have an output voltage different from a preset value due to external factors or unintended reactions. To control this, the battery module can be electrically connected to a battery management system (BMS). To detect the voltage output from the battery module, a connector is connected to a circuit board included in the battery module, and the circuit board of the battery module is electrically connected to the BMS through the connector. The BMS can then detect electrical signals from the battery module and control the battery module.

[0012] The substrate of a battery module may be folded due to spatial constraints. Facing portions of the folded substrate may come into contact with each other due to gravity or impact, potentially damaging the substrate.

[0013] Furthermore, when a fuse is mounted on a circuit board, there is a risk of damage to the fuse as the fuse and the circuit board come into contact.

[0014] The present invention has been devised to solve the above problems, and the object of the present invention is to provide a battery module in which a substrate is folded and adjacent parts are prevented from coming into contact with each other.

[0015] Another object of the present invention is to provide a battery module that prevents a fuse from coming into contact with a portion of the substrate adjacent to the fuse when the fuse is mounted on the substrate.

[0016] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

[0017] According to one embodiment of the present invention, a battery module comprises a substrate including a busbar, a busbar frame on which the busbar is mounted, a first substrate extension connected to the busbar and supported by the busbar frame, a substrate bending portion bent at an end of the first substrate extension, and a second substrate extension portion extending from the substrate bending portion, the substrate forming an internal space surrounded by the first substrate extension portion, the substrate bending portion, and the second substrate extension portion, a guide structure positioned at the second substrate extension portion and including a fuse facing the internal space, and a blocking portion positioned at the internal space to prevent the fuse from contacting the first substrate extension portion.

[0018] A battery module according to one embodiment of the present invention comprises a busbar frame on which a busbar is mounted, the busbar frame including a frame body and a support rib extending from the frame body, a first substrate extension portion supported by the support rib, a second substrate extension portion extending parallel to the first substrate extension portion and positioned above the first substrate extension portion, and a substrate including a substrate bending portion connecting the first substrate extension portion and the second substrate extension portion, and a guide structure including a blocking portion positioned between the first substrate extension portion and the second substrate extension portion to prevent the second substrate extension portion from contacting the first substrate extension portion.

[0019] According to one embodiment of the present invention, a battery module includes a secondary battery, a busbar configured to be electrically connected to a plurality of secondary batteries, and a busbar frame configured to mount the busbar, the busbar frame including a frame body, a support rib extending forward from the frame body to support the busbar from an upper side, and a space-forming rib extending forward from the frame body to form a space between the support ribs, a substrate including a first substrate extension portion configured to be electrically connected to the busbar and supported by the support rib, and a second substrate extension portion adjacent to the space-forming rib and facing the first substrate extension portion, a fuse mounted on the second substrate extension portion and protruding toward the first substrate extension portion, and a blocking portion positioned between the first substrate extension portion and the second substrate extension portion to prevent the fuse from contacting the first substrate extension portion, the guide structure including:

[0020] The battery module according to the present invention comprises a substrate including a first substrate extension portion, a substrate bending portion bent at an end of the first substrate extension portion, and a second substrate extension portion extending from the substrate bending portion, wherein the substrate forms an internal space surrounded by the first substrate extension portion, the substrate bending portion, and the second substrate extension portion, and a guide structure including a fuse mounted on the second substrate extension portion and protruding toward the internal space, and a blocking portion positioned in the internal space to prevent the fuse from contacting the first substrate extension portion, thereby providing a battery module that prevents the fuse from contacting a portion of the substrate adjacent to the fuse.

[0021] A battery module according to the present invention comprises a substrate including a first substrate extension, a second substrate extension extending parallel to the first substrate extension and positioned on an upper side of the first substrate extension, and a substrate bending portion connecting the first substrate extension and the second substrate extension, and a guide structure including a blocking portion positioned between the first substrate extension and the second substrate extension to prevent the second substrate extension from contacting the first substrate extension, thereby preventing the substrate from being folded and adjacent portions from contacting each other.

[0022] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains from the description below.

[0023] FIG. 1 is a perspective view illustrating a battery module according to a first embodiment of the present invention.

[0024] Figure 2 is an exploded view of the battery module illustrated in Figure 1 with the module case removed and disassembled.

[0025] FIG. 3 is an enlarged exploded view showing the configuration adjacent to the busbar in the battery module illustrated in FIG. 2.

[0026] Figure 4 is an enlarged exploded view of the battery module illustrated in Figure 3 from a different angle.

[0027] Figure 5 is an enlarged perspective view of the battery module illustrated in Figure 1.

[0028] Fig. 6 is a cross-sectional view showing the battery module shown in Fig. 5 cut along line Ⅵ-Ⅵ'.

[0029] Fig. 7 is a cross-sectional view showing the battery module illustrated in Fig. 5 cut along line Ⅶ-Ⅶ'.

[0030] Fig. 8 is a cross-sectional view showing the battery module shown in Fig. 5 cut along line Ⅷ-Ⅷ'.

[0031] Fig. 9 is a rear view showing the guide structure and its surrounding configuration of the battery module shown in Fig. 5 as viewed from below.

[0032] Fig. 10 is a perspective view showing the guide structure of the battery module illustrated in Fig. 5.

[0033] Fig. 11 is a front view showing the guide structure illustrated in Fig. 11 as viewed from the front.

[0034] Fig. 12 is a side view of the guide structure illustrated in Fig. 10 as viewed from the side.

[0035] Fig. 13 is a cross-sectional view illustrating a battery module according to the second embodiment.

[0036] Fig. 14 is a perspective view illustrating a guide structure according to the third embodiment.

[0037] Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the invention. However, the present invention may be implemented in various different forms and is not limited or restricted by the following examples.

[0038] In order to clearly explain the present invention, a detailed description of a part that is irrelevant to the description or a related known technology that may unnecessarily obscure the gist of the present invention has been omitted, and when adding reference signs to components of each drawing in this specification, the same or similar reference signs are attached to the same or similar components throughout the specification.

[0039] In addition, terms and words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention based on the principle that the inventor can appropriately define the concept of the term to explain his or her own invention in the best way.

[0040] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to encompass various modifications, equivalents, or alternatives of the embodiments.

[0041] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0042] The singular form of a noun corresponding to an item may include one or more items, unless the context clearly indicates otherwise.

[0043] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0044] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0045] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0046] When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0047] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0048] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0049] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0050] Meanwhile, the terms “upper and lower directions,” “lower side,” and “front and rear directions” used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0051] Specifically, as shown in Fig. 1, the direction in which the bus bar (30) faces is defined as the front, the direction in which the top plate (21) is positioned with respect to the module case (20) is defined as the upper side, and the rear, lower, left and right sides can be defined based on this.

[0052] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0053] Example 1

[0054] Fig. 1 is a perspective view illustrating a battery module (1) according to a first embodiment of the present invention. Fig. 2 is an exploded view of the battery module (1) illustrated in Fig. 1 with the module case (20) removed and disassembled.

[0055] Referring to FIGS. 1 and 2, a battery module (1) according to the first embodiment will be described.

[0056] As illustrated in FIG. 2, the secondary battery (10) may be positioned within a module case (20). The module case (20) may form a space on the inside to accommodate the secondary battery (10). Here, the secondary battery (10) may refer to a device that converts external electrical energy into the form of chemical energy, stores it, and then generates electricity when needed. The secondary battery (10) may include a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, etc. For example, the secondary battery (10) may output a voltage of about 2.5 V to 4.2 V per unit secondary battery (10). When a higher output voltage than this is required, the battery module (1) may be configured to output the required high voltage by connecting a plurality of secondary batteries (10).

[0057] A secondary battery (10) may include an electrode assembly (not shown) formed by alternately stacking electrodes (not shown) and separators (not shown). First, a slurry containing a mixture of an electrode active material, a binder, and a plasticizer may be applied to a positive electrode current collector and a negative electrode current collector to manufacture electrodes such as a positive electrode and a negative electrode. Then, separators may be stacked between the electrodes to form an electrode assembly, and the electrode assembly may be inserted into a battery case (not shown), filled with an electrolyte, and then sealed.

[0058] Specifically, the electrode assembly may include two types of electrodes, a positive electrode and a negative electrode, and a separator interposed between the electrodes to mutually insulate the electrodes. Such an electrode assembly may be provided in a stack type, a jelly roll type, a stack and folding type, etc., depending on how the positive electrode, the negative electrode, and the separator are stacked. The two types of electrodes, i.e., the positive electrode and the negative electrode, may each have a structure in which an active material slurry is applied to an electrode current collector in the form of a metal foil or metal mesh containing aluminum and copper, respectively. The slurry may typically be formed by stirring a granular active material, an auxiliary conductor, a binder, a plasticizer, etc. in a state in which a solvent is added. The solvent of the slurry may be removed in a subsequent process.

[0059] The electrode assembly can be accommodated in a battery case. The battery case can be classified into a pouch type and a can type, depending on the material of the case that accommodates the electrode assembly. The pouch type battery case can be manufactured from a flexible polymer material. Although Fig. 2 illustrates a secondary battery (10) including a pouch type battery case, the present invention is not limited thereto, and it is believed that the concept of the present invention can be applied to a can type battery case as well.

[0060] An electrode tab (not shown) may be connected to one end of the electrode assembly, and an electrode lead may be provided that is connected to the electrode tab and protrudes outwardly of the battery case. The electrode lead may protrude outwardly of the battery case. The electrode leads may be provided in a pair having a positive electrode and a negative electrode, and the electrode lead having the positive electrode and the electrode lead having the negative electrode may be positioned on opposite sides of the battery case, respectively. The electrode assembly and the electrode lead may be configured to be electrically connected. Accordingly, electricity generated in the electrode assembly may be transferred through the electrode lead.

[0061] A plurality of secondary batteries (10) can be stacked. The plurality of secondary batteries (10) can be stacked in the left-right direction in a vertically erected configuration. The plurality of secondary batteries (10) can be stacked such that each positive electrode lead faces one direction and each negative electrode lead faces the opposite direction. This configuration eliminates interference between the positive electrode leads and the negative electrode leads, thereby allowing the area of ​​the electrode leads to be expanded.

[0062] A bus bar (30) may be provided to connect a plurality of electrode leads. The bus bar (30) may be formed of a conductive rigid body. Preferably, the bus bar (30) may have a metal material. Since the electrode leads may have a thin plate shape, it may be difficult to align them to a preset position. Therefore, by first electrically connecting the electrode leads to the bus bar (30) and then arranging the bus bar (30) so that it faces the preset position, electricity generated in the secondary battery (10) can be moved to a desired position. The electrode leads may be connected to the bus bar (30) by welding. In particular, as illustrated in FIG. 1, when connecting a conductor to a terminal bus bar (31) positioned on the left and right sides, extending upward and then bending forward, electricity generated in the secondary battery (10) can flow through the terminal bus bar (31). The terminal bus bar (31) may be rigid, and therefore, connecting the conductor to the terminal bus bar (31) may be easier than connecting the conductor to the electrode lead, which is prone to deformation.

[0063] The battery module (1) may include a module case (20) that forms a space capable of accommodating a secondary battery (10).

[0064] The battery module (1) may include a busbar frame (100) configured to be able to mount a busbar (30) and form a space capable of accommodating a secondary battery (10) together with a module case (20). The module case (20) may cover the lower surface and left and right sides of the space capable of accommodating the secondary battery (10), and a pair of busbar frames (100) may cover the front and back surfaces of the space capable of accommodating the secondary battery (10). Furthermore, a top plate (21) configured to cover the upper surface of the space capable of accommodating the secondary battery (10) may be provided. The battery module (1) may include the module case (20), the pair of busbar frames (100), and the top plate (21), thereby forming a space surrounded by these components. A plurality of secondary batteries (10) may be stacked and accommodated in the formed space.

[0065] The busbar frame (100) may be provided to mount a busbar (30). A groove corresponding to the busbar (30) may be provided in the busbar frame (100), and the busbar (30) may be forcibly fitted into the groove provided in the busbar frame (100). The busbar (30) may be positioned at the front of the busbar frame (100) located at the front. The busbar frame (100) may support the busbar (30).

[0066] The busbar frame (100) may have a hole formed therein through which the electrode lead of the secondary battery (10) may pass. The busbar (30) may have a hole formed therein corresponding to the hole formed in the busbar frame (100). The hole formed in the busbar frame (100) and the hole formed in the busbar (30) are aligned, and the electrode lead is positioned to pass through the hole formed in the busbar frame (100) and the hole formed in the busbar (30), and then the electrode lead protruding forward from the busbar (30) may be bent to be positioned so as to contact the busbar (30). When the electrode lead contacts the busbar (30), the portion where the electrode lead and the busbar (30) contact each other may be welded to fix the connection between the electrode lead and the busbar (30).

[0067] To summarize, electricity generated in the electrode assembly can be transmitted to the bus bar (30) through the electrode tab and electrode lead.

[0068] There may be a need to measure and manage the voltage generated by the battery module (1). The voltage generated by the battery module (1) may change due to an external impact or an internal cause, which may cause an accident such as an explosion of the battery module (1). A battery management system (BMS) may be provided to receive a signal regarding the voltage and control the battery module (1). The battery management system may be connected to a substrate (200) included in the battery module (1) to receive a signal from the battery module (1). The substrate (200) may be electrically connected to a bus bar (30) to receive a signal regarding the voltage. A wire extending from the battery management system may be connected to the substrate (200) by being connected to a connector pin (41) illustrated in FIG. 2.

[0069] As illustrated in FIG. 2, the substrate (200) may include a substrate body (210) (FIG. 3) that extends along the longitudinal direction of the secondary battery (10) between the top plate (21) and the secondary battery (10). A portion of the substrate (200) extending from the substrate body (210) may be connected to a bus bar (30) that is arranged in the front, and for this purpose, the substrate (200) may be bent. The substrate (200) may have a flexible material to facilitate bending. That is, the substrate (200) may be a flexible printed circuit board (FPCB).

[0070] A portion of the substrate (200) may be supported by a busbar frame (100). Hereinafter, the substrate (200) and the busbar frame (100) will be described in detail.

[0071] Fig. 3 is an enlarged exploded view of the configuration adjacent to the bus bar (30) in the battery module (1) illustrated in Fig. 2. Fig. 4 is an enlarged exploded view of the battery module (1) illustrated in Fig. 3 from a different angle.

[0072] Referring to FIGS. 3 and 4, the substrate (200) and busbar frame (100) according to the first embodiment will be described in detail. The configuration described below is based on the busbar frame (100) located at the front and the configuration adjacent thereto. The configuration located at the rear can be understood to be symmetrical thereto.

[0073] As illustrated in FIG. 3, the substrate (200) may include a bend portion (220) extending from the substrate body (210). The bend portion (220) may be bent at an end of the substrate body (210) and may extend in a direction toward the bus bar (30). For example, the bend portion (220) may extend downward. The bend portion (220) may be supported by the bus bar frame (100).

[0074] The substrate (200) may include a connector pin insertion portion (230) that is bent at a bending portion (220) and extends forward. The connector pin insertion portion (230) may be supported by a space-forming rib (130) described below, and since the space-forming rib (130) may extend forward, the connector pin insertion portion (130) may extend forward along the space-forming rib (130). The connector pin insertion portion (230) may be provided to correspond to a connector pin (41) of a connector (40). A hole corresponding to the connector pin (41) may be formed in the connector pin insertion portion (230). The connector pin (41) may be configured to be electrically connected to the connector pin insertion portion (230) by being inserted into a hole formed in the connector pin insertion portion (230).

[0075] The substrate (200) may include a connecting bending portion (240) that extends downwardly from the connector pin insertion portion (230) and / or a second substrate extension portion (260) that extends backwardly from the connecting bending portion (240). The connecting bending portion (240) may connect the connector pin insertion portion (230) and the second substrate extension portion (260). A space may be provided between the connector pin insertion portion (230) and the second substrate extension portion (260), and a portion of a connector pin (41) that penetrates the connector pin insertion portion (230) may be positioned in this space.

[0076] The substrate (200) may include a first substrate extension (250) connected to a second substrate extension (260) by a substrate bending portion (270) (see FIG. 6) described later.

[0077] The substrate (200) may include a sensing terminal (50) that extends from the first substrate extension portion (250) and is connected to the bus bar (30). A plurality of sensing terminals (50) may be provided to correspond to each of the plurality of bus bars (30). The substrate (200) may be connected to the bus bar (30) by the sensing terminal (50), or in other words, the first substrate extension portion (250) may be connected to the bus bar (30) by the sensing terminal (50). That is, the first substrate extension portion (250) may be connected to the bus bar (30).

[0078] In particular, as illustrated in FIG. 4, a fuse (400) mounted on the second substrate extension (260) may be provided. However, the manner in which the fuse (400) is coupled to the second substrate extension (260) is not limited to mounting. For example, the fuse (400) may be formed by being printed on the second substrate extension (260). Therefore, more precisely, the fuse (400) may be positioned on the second substrate extension (260).

[0079] The fuse (400) can prevent current flowing through the substrate (200) when a current exceeding a predetermined current flows. The fuse (400) can protrude from the second substrate extension (260) toward the first substrate extension (250). More specifically, the fuse (400) can protrude downward. However, when the fuse (400) is formed by being printed on the second substrate extension (260), the fuse (260) can simply be said to be directed toward the second substrate extension (260).

[0080] A fuse coating (410) covering the fuse (400) may be provided. The fuse coating (410) may be provided to protect the fuse (400).

[0081] A busbar frame (100) may be provided to support a substrate (200). The busbar frame (100) may include a frame body (110). The frame body (110) may be configured to face a secondary battery (10) (see FIG. 2).

[0082] The busbar frame (100) may include a space forming rib (130) provided to support a connector pin insertion portion (230) of a substrate (200). The space forming rib (130) may be provided to support the connector pin insertion portion (230) at a lower side of the connector pin insertion portion (230). An end portion (132) of the space forming rib may be provided that extends upward from a base portion (131) of the space forming rib. The end portion (132) of the space forming rib may be connected to the frame body (110), and in order to strengthen the connection between the end portion (132) of the space forming rib and the frame body (110), a protrusion portion (133) of the space forming rib that connects the end portion (132) of the space forming rib and the frame body (110) may be included. The protrusion (133) of the space forming rib may protrude upward from the end (132) of the space forming rib. Furthermore, a connector pin receiving space (130S) that is concave downward may be formed by the base (131) of the space forming rib and the end (132) of the space forming rib.

[0083] The connector pin insertion portion (230), the connection bending portion (240), and the second substrate extension portion (260) of the substrate (200) can surround the space forming rib (130). Accordingly, the connector pin receiving space (130S) can have the connector pin insertion portion (230) positioned on the upper side, the connection bending portion (240) positioned on the front side, and the space forming rib (130) positioned on the lower side. The end of the connector pin (41) can penetrate the connector pin receiving space (130S) and be positioned in the connector pin receiving space (130S).

[0084] The busbar frame (100) may include a support rib (120) that supports the busbar (30). The support rib (120) may be positioned on the upper side of the busbar (30). The busbar (30) is supported by the support rib (120) on the upper side and by another portion of the frame body (110) that protrudes forward from the frame body (110) on the lower side, thereby preventing movement in the up-and-down direction. The busbar (30) may be mounted to the busbar frame (100) by the support rib (120). Furthermore, the support rib (120) may support the first substrate extension (250) on the lower side.

[0085] The battery module (1) may include a guide structure (300) including a blocking portion (310) positioned between a first substrate extension portion (250) and a second substrate extension portion (260). The guide structure (300) may include a pair of cover side walls (320) extending upward from both left and right ends of the blocking portion (310). A fuse receiving hole (311S) capable of receiving a fuse (400) may be formed in the guide structure (300).

[0086] The guide structure (300) is described in more detail below.

[0087] FIG. 5 is an enlarged perspective view of the battery module (1) illustrated in FIG. 1. FIG. 6 is a cross-sectional view of the battery module (1) illustrated in FIG. 5 taken along line VI-VI'. FIG. 7 is a cross-sectional view of the battery module (1) illustrated in FIG. 5 taken along line VII-VII'. FIG. 8 is a cross-sectional view of the battery module (1) illustrated in FIG. 5 taken along line VIII-VIII'. FIG. 9 is a rear view of the guide structure (300) of the battery module (1) illustrated in FIG. 5 and its surrounding structure as viewed from below. FIG. 10 is a perspective view of the guide structure (300) of the battery module (1) illustrated in FIG. 5. FIG. 11 is a front view of the guide structure (300) illustrated in FIG. 11 as viewed from the front. Fig. 12 is a side view of the guide structure (300) illustrated in Fig. 10 as viewed from the side.

[0088] Referring to FIGS. 5 to 9, the guide structure (300) and its adjacent components according to the first embodiment will be described. Furthermore, referring to FIGS. 10 to 12, a detailed structure of the guide structure (300) will be described.

[0089] As illustrated in FIG. 6, the blocking portion (310) of the guide structure (300) may be positioned between the first substrate extension portion (250) and the second substrate extension portion (260). The second substrate extension portion (260) may move toward the first substrate extension portion (250) by gravity. If there is no blocking portion (310), the second substrate extension portion (260) may move toward the first substrate extension portion (250) and then come into contact with the first substrate extension portion (250). If the first substrate extension portion (250) and the second substrate extension portion (260) come into contact, the layers on the surfaces of the first substrate extension portion (250) and the second substrate extension portion (260) may be broken, thereby causing the substrate (200) to fail.

[0090] Furthermore, the fuse (400) mounted on the second substrate extension (260) may break down due to contact with the first substrate extension (250). The fuse (400) can block the flow of current when an overcurrent flows, but if the fuse (400) breaks down, it may not be able to prevent the overcurrent from flowing to the substrate (200) and causing a temperature rise. In order to prevent the fuse (400) from breaking down, a fuse coating (410) covering the fuse (400) may be provided, but there may still be a risk that a crack may occur when the fuse coating (410) comes into contact with the second substrate extension (260), thereby causing the fuse (400) to break down.

[0091] In order to prevent a failure of the fuse (400), if the fuse coating (410) is provided to cover the fuse (400), it becomes difficult for the second substrate extension (260) in contact with the fuse coating (410) to be deformed due to the brittleness of the fuse coating (410), and accordingly, the second substrate extension (260) in contact with the fuse coating (410) needs to extend in a straight line by a predetermined length. If the second substrate extension (260) extends forward, the overall volume occupied by the battery module (1) may increase, so it may be preferable for the second substrate extension (260) to extend rearward. If the second substrate extension (260) extends rearward as much as necessary, the end of the second substrate extension (260) may not be positioned vertically above the bus bar (30). Accordingly, a substrate bending portion (270) and a first substrate extension portion (250) may be provided to connect an end portion of a second substrate extension portion (260) and a bus bar (30). Since the end portion of the second substrate extension portion (260) may be positioned at the upper rear with respect to the bus bar (30), if a substrate bending portion (270) is provided that extends downward from the end portion of the second substrate extension portion (260) and a first substrate extension portion (250) is provided that extends forward from the substrate bending portion (270), the second substrate extension portion (260) may be connected to the bus bar (30).

[0092] At this time, it may be preferable that the fuse (400) be positioned on the second substrate extension portion (260). The fuse (400) may be positioned between the connector pin (41) and the bus bar (30). This is because the fuse (400) needs to block the current flowing between the battery management system and the bus bar (30). If the fuse (400) is mounted on the connector pin insertion portion (230), the connector pin insertion portion (230) must extend further forward, so the battery module (1) extends forward, increasing the volume occupied by the battery module (1), which may be undesirable. If the fuse (400) is positioned on the connecting bending portion (240), the fuse (400) protrudes forward, which may be undesirable for the same reason. The connector pin (41) may be thicker than the bus bar (30), and thus, the space forming rib (130) provided to support the connector pin (41) may protrude further forward than the support rib (120) provided to support the bus bar (30). That is, the support rib (120) may be positioned at the lower rear of the space forming rib (130), but the support rib (120) may not be positioned at the lower front of the space forming rib (130). Accordingly, the fuse (400) may be positioned in a space where the support rib (120) formed at the lower front of the space forming rib (130) is not positioned. This may mean that the fuse (400) is mounted at the front of the second substrate extension portion (260). Accordingly, the mounting of the fuse (400) may not substantially increase the volume occupied by the battery module (1).

[0093] However, in this way, when the fuse (400) is positioned at a desirable location, it may be positioned adjacent to the first substrate extension (250), and thus the fuse (400) and / or the fuse coating (410) may come into contact with the first substrate extension (250) due to external force, etc. As a result, an impact may be applied to the fuse (400), which may cause damage to the fuse (400). To prevent this, a guide structure (300) may be provided.

[0094] The substrate (200) may include a first substrate extension portion (250) connected to a bus bar (30) and supported by a bus bar frame (100), a substrate bending portion (270) bent at an end of the first substrate extension portion (250), and a second substrate extension portion (260) extending from the substrate bending portion (270). The substrate (200) may form an internal space (270S) surrounded by the first substrate extension portion (250), the substrate bending portion (270), and the second substrate extension portion (260). The guide structure (300) may include a blocking portion (310) positioned in the internal space (270S) to prevent the fuse (400) from contacting the first substrate extension portion (250). The fuse (400) may be mounted on the second substrate extension (260) and protrude toward the internal space (270S). In other words, the fuse (400) may be positioned on the second substrate extension (260) and may face the internal space (270S). That is, the cutoff (310) may be positioned between the first substrate extension (250) and the second substrate extension (260).

[0095] The support rib (120) may have a first rib surface (120P) facing the first substrate extension portion (250). The space forming rib (130) may have a second rib surface (130P) facing the second substrate extension portion (260). The first substrate extension portion (250) may face the first rib surface (120P) and be adjacent to the support rib (120). The second substrate extension portion (260) may face the second rib surface (130P) and be adjacent to the space forming rib (130).

[0096] The first substrate extension (250) may be positioned adjacent to the support rib (120), and the second substrate extension (260) may be positioned adjacent to the space-forming rib (130), so that the internal space (270S) may be formed by the support rib (120) and / or the space-forming rib (130). Accordingly, the blocking portion (310) may be positioned between the support rib (120) and the space-forming rib (130).

[0097] More specifically, the blocking member (310) may include a base (311) (see FIG. 10) having a first support surface (311Pa) supported by a first substrate extension (250). The base (311) may be in contact with the first substrate extension (250). Since the first substrate extension (250) may be supported by the support rib (120), the base (311) may be indirectly supported by the support rib (120). That is, the first support surface (311Pa) may be provided so that the first substrate extension (250) is positioned between the support rib (120).

[0098] The base (311) may be provided to support the second substrate extension (260). More specifically, the base (311) may be positioned on the opposite side of the first support surface (311Pa) and may have a second support surface (311Pb) that supports the second substrate extension (260). The second support surface (311Pb) may support the second substrate extension (260) from the lower side, thereby preventing the second substrate extension (260) from moving downward. In particular, since the second substrate extension (260) may be positioned adjacent to the space forming rib (130), the second support surface (311Pb) may be provided such that the second substrate extension (260) is positioned between the space forming rib (130).

[0099] The support rib (120) and the space forming rib (130) may extend to be parallel. Accordingly, the first substrate extension portion (250) adjacent to the support rib (120) and the second substrate extension portion (260) adjacent to the space forming rib (130) may extend to be parallel. The base (311) portion may extend to be parallel to the first substrate extension portion (250) and the second substrate extension portion (260). As illustrated in FIG. 10, the base (311) may have a plate shape with a predetermined thickness. The base (311) may have a thickness corresponding to the distance between the first substrate extension portion (250) and the second substrate extension portion (260) so as to be positioned between the space forming rib (130) and the support rib (120). Accordingly, the second substrate extension (260) can be prevented from initially moving in the direction of gravity at a distance separated from the first substrate extension (250) by the base (311).

[0100] In particular, as illustrated in FIG. 12, the first support surface (311Pa) may extend further away from the frame body (110) than the second support surface (311Pb). This is because, as illustrated in FIG. 6, the second rib surface (130P) extends further from the frame body (110) than the first rib surface (120P), so the second substrate extension portion (260) extending along the second rib surface (130P) extends further from the frame body (110) than the first substrate extension portion (250) extending along the first rib surface (120P), and accordingly, the second support surface (311Pb) supporting the second substrate extension portion (260) may extend further from the frame body (110) than the first support surface (311Pa) supported by the first substrate extension portion (250).

[0101] As illustrated in FIG. 10, the blocking portion (310) may include a protruding rib (312) extending from the base (311). The protruding rib (312) may protrude toward the substrate bending portion (270), as illustrated in FIG. 6. The protruding rib (312) may be adjacent to the substrate bending portion (270). The substrate bending portion (270) may have a width smaller than the second substrate extension portion (260) and / or the first substrate extension portion (250). Accordingly, the protruding rib (312) may have a width corresponding to the substrate bending portion (270), and the protruding rib (312) may have a width smaller than the base (311). While positioning the substrate (200) between the space-forming rib (130) and the support rib (120), the substrate (200) is pressed by the protruding rib (312) so that a part of the substrate (200) is folded and positioned between the space-forming rib (130) and the support rib (120), thereby forming the first substrate extension portion (250), the second substrate extension portion (260), and the substrate bending portion (270). In this process, if the width of the protruding rib (312) is smaller than the width of the substrate bending portion (270), the pressure applied to the substrate bending portion (270) may become strong. To prevent this, the width of the protruding rib (312) may be greater than the width of the substrate bending portion (270). However, preferably, the width of the protruding rib (312) corresponds to the width of the substrate bending portion (270), so that the protruding rib (312) can be provided so as to minimize damage to the substrate bending portion (270) while minimizing waste of material.

[0102] As illustrated in FIGS. 9 and 10, the base (311) may be formed with a fuse receiving hole (311S) capable of receiving a fuse (400). The size of the fuse receiving hole (311S) may be provided to receive fuses (400) of various sizes. The fuse (400) may protrude from the second substrate extension portion (260), and accordingly, the fuse (400) may be received in the fuse receiving hole (311S), so that the second substrate extension portion (260) positioned around the fuse (400) may be positioned in contact with the second support surface (311Pb) of the base (311).

[0103] A fuse coating (410) covering the fuse (400) may be provided. As mentioned above, the fuse coating (410) can prevent damage to the fuse (400) by covering the fuse (400). However, if the fuse coating (410) becomes too thick, the fuse coating (410) protrudes toward the first substrate extension portion (250), and thus the fuse coating (410) and the first substrate extension portion (250) may come into contact, increasing the possibility of cracks forming in the fuse coating (410). To prevent this, the fuse coating (410) positioned beyond the fuse receiving hole (311S) may be removed so as to maintain a constant thickness (t3) of the fuse coating (410). Alternatively, by removing the fuse coating (410) protruding beyond the fuse receiving hole (311S) while forming the fuse coating (410), the fuse coating (410) may be prevented from exceeding a constant thickness (t3). The thickness (t1) of the fuse receiving hole (311S) may correspond to the thickness of the base (311). Since the thickness of the base (311) may correspond to the distance between the first substrate extension (250) and the second substrate extension (260), the thickness of the fuse receiving hole (311S) may correspond to the distance between the first substrate extension (250) and the second substrate extension (260). For example, if the thickness (t2) of the fuse (400) is 1 mm, the thickness (t1) of the fuse receiving hole (311S) may be 1.5 mm so that the thickness (t3) of the fuse coating (410) is within 0.5 mm. That is, the fuse receiving hole (311S) may have a thickness greater than the sum of the thicknesses of the fuse (400) and the fuse coating (410).

[0104] As illustrated in FIG. 10, the guide structure (300) may include a cover side wall (320) extending upward from the base (311). The cover side wall (320) may extend away from the support rib (120) from the blocking portion (310) to cover the side of the space forming rib (130). The cover side wall (320) may extend from the left and / or right ends of the base (311).

[0105] As illustrated in FIGS. 7 and 10, the cover side wall (320) may be formed with a mounting slit (320S) extending in the extension direction of the end portion (132) of the space-forming rib to accommodate the end portion (132) of the space-forming rib. The end portion (132) of the space-forming rib may be accommodated in the mounting slit (320S). Accordingly, while the blocking portion (310) deforms a portion of the substrate (200) to form the first substrate extension portion (250) and the second substrate extension portion (260), the movement of the blocking portion (310) may be guided so that the blocking portion (310) moves parallel to the extension direction of the support rib (120) and the space-forming rib (130). That is, by accommodating the end (132) of the space forming rib in the mounting slit (320S), the blocking member (310) can be guided to move in the extension direction of the internal space (270S).

[0106] As illustrated in FIG. 11, the cover side wall (320) may include a step portion (321) protruding from the base (311) to support an end portion (132) of a space-forming rib, and the cover side wall (320) may include a slit-forming flange (322) that is spaced apart from the step portion (321) and extends parallel to the extension direction of the mounting slit (320S) so that a mounting slit (320S) is formed between the step portion (321). The end portion (132) of the space-forming rib may be positioned higher than the base portion (131) of the space-forming rib. The base (311) can indirectly support the base portion (131) of the space-forming rib, and since the end portion (132) of the space-forming rib is spaced upward from the base portion (131) of the space-forming rib, a step portion (321) extending from the base (311) to the end portion (132) of the space-forming rib can be provided to support the end portion (132) of the space-forming rib. The end portion (132) of the space-forming rib can be positioned above the step portion (321), and accordingly, a slit-forming flange (322) can be provided above the mounting slit (320S) to form a mounting slit in which the end portion (132) of the space-forming rib is positioned.

[0107] At this time, the step portion (321) may extend toward the frame body (110), and the slit forming flange (322) may extend less toward the frame body (110) than the step portion (321). As shown in FIGS. 7 and 8, a protrusion (133) of the space forming rib extending upward may be positioned at the rear side of the end portion (132) of the space forming rib, and accordingly, the slit forming flange (322) may not extend beyond the space forming rib (130). The upper side of the step portion (321) on which the slit forming flange (322) is not provided may not have a mounting slit (320S) formed thereon. The guide structure (300) may have a wider opening on the side where the slit forming flange (322) is not provided than on the side where the slit forming flange (322) is provided, and accordingly, the space forming rib (130) enters first through the wider opening, so that it may be easier for the blocking portion (310) of the guide structure (300) to move into the internal space (270S) of the busbar frame (100).

[0108] Below, embodiments different from the first embodiment will be described. Commonalities with the first embodiment will be omitted as much as possible, and the other embodiments will be described focusing on differences. In other words, it should be clear that any details not described in the second through third embodiments can be supplemented by the first embodiment.

[0109] Second Example

[0110] Fig. 13 is a cross-sectional view showing a battery module (1) according to the second embodiment.

[0111] A battery module (1) according to a second embodiment is described with reference to FIG. 13.

[0112] The battery module (1) according to the second embodiment is different from the battery module (1) according to the first embodiment in that the fuse (400) is not mounted on the second substrate extension (260) of the substrate (200-1).

[0113] In addition to solving the problem of cracks occurring in the fuse (400) when the fuse (400) comes into contact with the substrate (200-1), the present invention can also prevent damage to the substrate (200-1) caused by adjacent substrates (200-1) coming into contact with each other. Therefore, a battery module (1) such as the second embodiment can also be considered an embodiment to which the present invention is applied.

[0114] Third Example

[0115] Fig. 14 is a perspective view illustrating a guide structure (300-2) according to the third embodiment.

[0116] Referring to Fig. 14, a guide structure (300-2) according to the third embodiment is described.

[0117] The guide structure (300-2) according to the third embodiment is different from the guide structure (300) according to the first embodiment in that a cover side wall (320) is not provided.

[0118] As described in the first embodiment, the cover side wall (320) can protect the space forming rib (130) and guide the guide structure (300) to move to a preset position. However, even if the cover side wall (320) is not provided, the guide structure (300-1) can be moved to a preset position.

[0119] When the guide structure (300-2) is moved to a preset position, the guide structure (300-2) includes a blocking member (310), so that contact between the fuse (400), the fuse coating (410), and / or the second substrate extension (260) and the first substrate extension (250) can be prevented.

[0120] Accordingly, the guide structure (300-2) of the shape shown in Fig. 14 can also achieve the purpose of the present invention.

[0121] A battery module (1) according to one embodiment of the present invention may include the following ideas.

[0122] A battery module (1) according to one embodiment of the present invention comprises: a busbar (30), a busbar frame (100) on which the busbar (30) is mounted, a first substrate extension (250) connected to the busbar (30) and supported by the busbar frame (100), a substrate bending portion (270) bent at an end of the first substrate extension (250); A substrate (200) including a second substrate extension (260) extending from a substrate bending portion (270), the substrate (200) forming an internal space (270S) surrounded by the first substrate extension (250), the substrate bending portion (270), and the second substrate extension (260), a guide structure (300) including a fuse (400) mounted on the second substrate extension (260) and protruding toward the internal space (270S), and a blocking portion (310) positioned in the internal space (270S) to prevent the fuse (400) from contacting the first substrate extension (250).

[0123] The guide structure (300) may further include a base (311) having a first support surface (311Pa) supported by a first substrate extension (250).

[0124] The busbar frame (100) includes a support rib (120) extending from the frame body (110) to support the frame body (110) and the first substrate extension (250), and the first support surface (311Pa) can be provided so that the first substrate extension (250) is positioned between the support rib (120).

[0125] The base (311) may further have a second support surface (311Pb) positioned on the opposite side of the first support surface (311Pa) and supporting the second substrate extension (260).

[0126] The busbar frame (100) further includes a space forming rib (130) adjacent to the second substrate extension (260) as a space forming rib (130) spaced apart from the support rib (120) so that an internal space (270S) is defined between the support rib (120), and the second support surface (311Pb) can be provided so that the second substrate extension (260) is positioned between the space forming rib (130).

[0127] The base (311) may have a thickness corresponding to the distance between the first substrate extension (250) and the second substrate extension (260) so as to be positioned between the space forming rib (130) and the support rib (120).

[0128] The support rib (120) has a first rib surface (120P) facing the first substrate extension (250), the space forming rib (130) has a second rib surface (130P) facing the second substrate extension (260) and extending further away from the frame body (110) than the first rib surface (120P), and the first support surface (311Pa) can extend further away from the frame body (110) than the second support surface (311Pb).

[0129] The blocking portion (310) may include a protruding rib (312) protruding from the base (311) toward the substrate bending portion (270).

[0130] The protruding rib (312) may have a width smaller than the base (311) so as to have a width corresponding to the substrate bending portion (270).

[0131] The guide structure (300) may further include a cover side wall (320) extending away from the support rib (120) from the blocking portion (310) to cover the side of the space forming rib (130).

[0132] The cover side wall (320) may be formed with a mounting slit (320S) extending in the extension direction of the end portion (132) of the space forming rib to accommodate the end portion (132) of the space forming rib.

[0133] The cover side wall (320) may include a step portion (321) protruding from the base (311) to support the end portion (132) of the space forming rib, and a slit forming flange (322) spaced apart from the step portion (321) and extending parallel to the extension direction of the mounting slit (320S) so that a mounting slit (320S) is formed between the step portion (321).

[0134] The step portion (321) extends toward the frame body (110), and the slit forming flange (322) may extend less toward the frame body (110) than the step portion (321).

[0135] The base (311) can be formed with a fuse receiving hole (311S) capable of receiving a fuse (400).

[0136] It further includes a fuse coating (410) covering the fuse (400), and the fuse receiving hole (311S) may have a thickness greater than the sum of the thicknesses of the fuse (400) and the fuse coating (410).

[0137] A battery module (1) according to one embodiment of the present invention may include a busbar frame (100) on which a busbar (30) is mounted, the busbar frame (100) including a frame body (110) and a support rib (120) extending from the frame body (110), a first substrate extension (250) supported by the support rib (120), a second substrate extension (260) extending parallel to the first substrate extension (250) and positioned on the upper side of the first substrate extension (250), and a substrate (200) including a substrate bending portion (270) connecting the first substrate extension (250) and the second substrate extension (260), and a guide structure (300) including a blocking portion (310) positioned between the first substrate extension (250) and the second substrate extension (260) to prevent the second substrate extension (260) from contacting the first substrate extension (250). there is.

[0138] The guide structure (300) may further include a base (311) having a first support surface (311Pa) supported by a first substrate extension (250).

[0139] The base (311) may have a second support surface (311Pb) positioned on the opposite side of the first support surface (311Pa) and supporting the second substrate extension (260).

[0140] The busbar frame (100) further includes a space forming rib (130) adjacent to the second substrate extension (260) as a space forming rib (130) spaced apart from the support rib (120) so that an internal space (270S) is defined between the support rib (120), and the second support surface (311Pb) can be provided so that the second substrate extension (260) is positioned between the space forming rib (130).

[0141] According to one embodiment of the present invention, a battery module (1) comprises a plurality of secondary batteries (10), a bus bar (30) configured to be electrically connected to the plurality of secondary batteries (10), and a bus bar frame (100) configured to mount the bus bar (30), the bus bar frame (100) including a frame body (110), a support rib (120) extending forward from the frame body (110) to support the bus bar (30) from the upper side, and a space forming rib (130) extending forward from the frame body (110) to form a space between the support rib (120), a substrate (200) including a first substrate extension (250) configured to be electrically connected to the bus bar (30) and supported by the support rib (120), and a second substrate extension (260) adjacent to the space forming rib (130) and facing the first substrate extension (250), and a second substrate extension (260) formed on the second substrate extension (260). It may include a guide structure (300) including a fuse (400) that is mounted and protrudes toward the first substrate extension (250) and a blocking member (310) positioned between the first substrate extension (250) and the second substrate extension (260) to prevent the fuse (400) from contacting the first substrate extension (250).

[0142] Unless explicitly stated otherwise, the embodiments described above may be combined with other embodiments. Alternatively, combinations between embodiments may be considered possible, unless one embodiment is explicitly restricted from being combined with another embodiment. Combinations of one embodiment with another embodiment are deemed to be disclosed in this document.

[0143] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and various embodiments are possible within the scope equivalent to the technical idea of ​​the present invention and the patent claims to be described below by a person having ordinary skill in the art to which the present invention pertains.

[0144] [Explanation of symbols]

[0145] 1: Battery module

[0146] 10: Secondary battery

[0147] 30: Bus bar

[0148] 40: Connector

[0149] 100: Busbar frame

[0150] 110: Frame body

[0151] 120: Support rib

[0152] 120P: 1st rib side

[0153] 130: Space Formation Rib

[0154] 130P: 2nd rib side

[0155] 132: End of space forming rib

[0156] 200: Substrate

[0157] 210: PCB body

[0158] 240: Connecting bending section

[0159] 250: First substrate extension

[0160] 260: Second substrate extension

[0161] 270: Substrate bending section

[0162] 270S: Interior space

[0163] 300: Guide Structure

[0164] 310: Blocking section

[0165] 311: Base

[0166] 311Pa: First support surface

[0167] 311Pb: Second support surface

[0168] 311S: Fuse receiving hole

[0169] 312: Protruding rib

[0170] 320: Cover sidewall

[0171] 320S: Mounting slit

[0172] 321: Single jaw

[0173] 322: Slit forming flange

[0174] 400: Fuse

[0175] 410: Fuse coating

Claims

1. Busbar; A busbar frame on which the above busbar is mounted; A first substrate extension connected to the bus bar and supported by the bus bar frame, a substrate bending portion bent at an end of the first substrate extension; A substrate including a second substrate extension portion extending from the substrate bending portion, the substrate forming an internal space surrounded by the first substrate extension portion, the substrate bending portion, and the second substrate extension portion; a fuse positioned in the second substrate extension portion and facing the internal space; and A battery module comprising a guide structure including a blocking portion positioned in the internal space to prevent the fuse from contacting the first substrate extension.

2. In paragraph 1, A battery module wherein the guide structure further comprises a base having a first support surface supported by the first substrate extension.

3. In paragraph 2, The above busbar frame includes a support rib extending from the frame body to support the frame body and the first substrate extension, A battery module in which the first support surface is provided so that the first substrate extension is positioned between the support ribs.

4. In paragraph 3, A battery module wherein the base is positioned on an opposite side of the first support surface and further has a second support surface that supports the second substrate extension.

5. In paragraph 4, The above busbar frame further includes a space forming rib adjacent to the second substrate extension, as a space forming rib spaced apart from the support rib so that an internal space is defined between the support rib and the space forming rib, A battery module in which the second support surface is provided such that the second substrate extension is positioned between the space forming rib.

6. In paragraph 5, A battery module having a thickness corresponding to a distance between the first substrate extension and the second substrate extension so that the base is positioned between the space forming rib and the support rib.

7. In paragraph 5, The above support rib has a first rib surface facing the first substrate extension, The space forming rib faces the second substrate extension and has a second rib surface that extends further away from the frame body than the first rib surface, A battery module in which the first support surface extends further away from the frame body than the second support surface.

8. In paragraph 2, A battery module wherein the above-mentioned blocking portion includes a protruding rib protruding from the base toward the substrate bending portion.

9. In paragraph 8, A battery module in which the protruding rib has a width smaller than the base so as to have a width corresponding to the substrate bending portion.

10. In paragraph 5, A battery module wherein the guide structure further includes a cover side wall extending away from the support rib from the blocking portion to cover a side of the space forming rib.

11. In paragraph 10, A battery module in which the cover side wall is formed with a mounting slit extending in the extension direction of the end of the space forming rib to accommodate the end of the space forming rib.

12. In paragraph 11, The above cover side wall, A step portion protruding from the base to support the end of the space forming rib; and A battery module comprising a slit forming flange spaced apart from the step portion so that the mounting slit is formed between the step portion and extending parallel to the extension direction of the mounting slit.

13. In paragraph 12, The above-mentioned step portion extends toward the frame body, A battery module in which the slit forming flange extends less toward the frame body than the step portion.

14. In paragraph 2, The above base is a battery module in which a fuse-accommodating hole capable of accommodating the above fuse is formed.

15. In paragraph 14, Further comprising a fuse coating covering the above fuse, A battery module in which the fuse receiving hole has a thickness greater than the sum of the thicknesses of the fuse and the fuse coating.

16. A busbar frame on which a busbar is mounted, comprising a frame body and a support rib extending from the frame body; A substrate including a first substrate extension supported by the support rib, a second substrate extension extending parallel to the first substrate extension and positioned on an upper side of the first substrate extension, and a substrate bending portion connecting the first substrate extension and the second substrate extension; and A battery module comprising a guide structure including a blocking portion positioned between the first substrate extension and the second substrate extension to prevent the second substrate extension from contacting the first substrate extension.

17. In paragraph 16, A battery module wherein the guide structure further comprises a base having a first support surface supported by the first substrate extension.

18. In paragraph 17, A battery module wherein the base is positioned on an opposite side of the first support surface and has a second support surface that supports the second substrate extension.

19. In paragraph 18, The above busbar frame further includes a space forming rib adjacent to the second substrate extension, as a space forming rib spaced apart from the support rib so that an internal space is defined between the support rib and the space forming rib, A battery module in which the second support surface is provided such that the second substrate extension is positioned between the space forming rib.

20. Multiple secondary batteries; A bus bar configured to be electrically connected to the plurality of secondary batteries; A busbar frame configured to mount the above busbar, comprising: a frame body; a support rib extending forward from the frame body to support the busbar from the upper side; and a space forming rib extending forward from the frame body to form a space between the support rib; A substrate including a first substrate extension portion configured to be electrically connected to the bus bar and supported by the support rib, and a second substrate extension portion adjacent to the space forming rib and facing the first substrate extension portion; A fuse mounted on the second substrate extension portion and protruding toward the first substrate extension portion; and A battery module comprising a guide structure including a blocking portion positioned between the first substrate extension and the second substrate extension to prevent the fuse from contacting the first substrate extension.

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