Connector module and battery module including same

Abstract

A connector module according to an embodiment of the present invention includes a first connector including a first connector housing forming a first recessed portion recessed inward and a first conductive portion that couples with the first connector housing, and a second connector that couples with the first connector, wherein the second connector may include a second connector housing at least a portion of which is inserted and coupled to the first recessed portion, a second conductive portion that is inserted and coupled to the second connector housing and electrically connected to the first conductive portion, and a fastening housing that passes through the second connector housing and the second conductive portion to fasten the second connector housing and the second conductive portion together.

Description

[Technical field]

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2022-0100974 filed on August 11, 2022 and Korean Patent Application No. 10-2022-0162090 filed on November 28, 2022, and all contents disclosed in the documents of said Korean patent applications are incorporated as part of this specification.

[0002] The present invention relates to a connector module and a battery module including the same. [Background technology]

[0003] In order to solve the environmental pollution caused by the use of petroleum resources and the problem of energy shortage caused by the depletion of petroleum resources, research and development is being conducted on electricity production based on environmentally friendly energy sources. In particular, research on secondary batteries, which can be repeatedly charged and discharged and have high versatility, is being actively conducted, and research is being conducted on various aspects of secondary batteries, such as their materials, structure, processes, and stability.

[0004] In terms of the structure of secondary batteries, research and development into miniaturization and integration of related structures is being actively conducted in order to increase the energy density. In particular, as the capacity of batteries and the number of batteries mounted in a battery pack / battery module increase, the internal space of a battery pack / battery module becomes very narrow. Therefore, it is important to develop a structure that allows batteries to be arranged in a limited space and allows the batteries to be effectively electrically connected to the outside of the battery pack / battery module.

[0005] According to conventional technology, the internal structure of a battery pack / battery module is connected by a soldering method, but the soldering method has problems such as cracks and reduced manufacturing yields. Also, according to conventional technology, when the internal structure of a battery pack / battery module is miniaturized, damage or fastening failure may occur due to mechanical vibration / shock. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE PRESENTLY PREFERRED EMBODIMENTS One problem that the present invention seeks to solve is to provide a connector module that occupies less of the interior space of a battery module by reducing its height and, therefore, its overall volume.

[0007] One problem that the present invention aims to solve is to provide a connector module that is easy to attach and detach even in a restricted space caused by miniaturization, and that can prevent damage and defects due to mechanical vibration and impact, and a battery module including the connector module.

[0008] One problem that the present invention aims to solve is to provide a connector module that ensures structural stability by increasing the bonding force between each component through a tilt prevention and separation prevention structure, and a battery module including the connector module. [Means for solving the problem]

[0009] A connector module according to an embodiment of the present invention includes a first connector including a first connector housing forming a first recessed portion formed inwardly and a first conductive part that engages with the first connector housing, and a second connector that engages with the first connector, and the second connector may include a second connector housing at least a portion of which is inserted and engaged with the first recessed portion, a second conductive part that is inserted and engaged with the second connector housing and electrically connected to the first conductive part, and a fastening housing that penetrates the second connector housing and the second conductive part to fasten the second connector housing and the second conductive part. Effect of the Invention

[0010] The present invention relates to a connector module and a battery module including the connector module, and according to a preferred embodiment of the present invention, the internal space of the battery module can be more effectively utilized by reducing the overall volume.

[0011] According to a preferred embodiment of the present invention, the connector can be easily attached and detached even in a limited space due to miniaturization.

[0012] According to a preferred embodiment of the present invention, damage and defects of the connector module and the battery module caused by mechanical vibration and impact can be prevented.

[0013] According to a preferred embodiment of the present invention, the anti-tilt and anti-detachment structure can increase the coupling strength between the components of the connector module and the battery module.

[0014] In addition, the present invention can include other effects that can be easily predicted by a person skilled in the art from the configuration according to the preferred embodiment of the present invention. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view showing a battery module according to an embodiment of the present invention; [Diagram 2] 1 is a plan view showing a battery module according to an embodiment of the present invention as viewed from above; [Diagram 3] 2 is a perspective view showing a battery module according to an embodiment of the present invention with an upper case omitted; FIG. [Figure 4] 4 is a partially enlarged view showing a connector module attached to a control unit in the battery module according to one embodiment of the present invention; FIG. [Diagram 5] 1 is an exploded perspective view showing a connector module according to an embodiment of the present invention; FIG. [Figure 6] 1 is a longitudinal cross-sectional view showing a state in which a connector module is attached to a control unit according to an embodiment of the present invention; [Figure 7] FIG. 2 is a longitudinal sectional view showing a cross section of a control unit cover according to an embodiment of the present invention. [Figure 8]FIG. 2 is a perspective view showing the arrangement of conductive parts according to one embodiment of the present invention. [Figure 9] 1 is a perspective view showing a first connector according to an embodiment of the present invention as viewed from one direction. [Figure 10] 11 is a perspective view showing the first connector according to the embodiment of the present invention as viewed from another direction. FIG. [Figure 11] FIG. 13 is a perspective view illustrating a dimple line according to one embodiment of the present invention. [Figure 12] FIG. 2 is a perspective view showing a comb-shaped structure of a second connector according to an embodiment of the present invention. [Figure 13a] FIG. 13 is a bottom view showing the comb-shaped structure of the second connector according to one embodiment of the present invention. [Figure 13b] 1 is a bottom perspective view of a second connector according to an embodiment of the present invention; FIG. [Figure 14] 1 is a plan view showing a state in which a first connector and a second connector are coupled together according to an embodiment of the present invention; [Figure 15] 2 is a longitudinal cross-sectional view showing a cross section along the BB line in a state in which the first connector and the second connector are coupled according to an embodiment of the present invention. FIG. [Figure 16] 2 is a longitudinal cross-sectional view showing a cross section taken along a CC line in a state in which a first connector and a second connector are coupled according to an embodiment of the present invention. FIG. [Figure 17] 1 is a plan view showing a state in which a first connector according to an embodiment of the present invention is viewed from above. [Figure 18] 2 is a longitudinal cross-sectional view showing a cross section of a first connector according to an embodiment of the present invention. FIG. [Figure 19] FIG. 2 is a plan view showing a protruding rib of the first connector according to an embodiment of the present invention. [Figure 20] FIG. 2 is a plan view showing a hole of a first connector according to an embodiment of the present invention. [Figure 21] FIG. 13 is a perspective view showing an internal rib according to one embodiment of the present invention. [Figure 22] FIG. 13 is a front view showing an internal rib according to one embodiment of the present invention. [Figure 23]FIG. 13 is a front view showing the arrangement of protruding ribs and internal ribs according to one embodiment of the present invention. [Figure 24] FIG. 2 is a perspective view of a second connector according to an embodiment of the present invention. [Diagram 25] FIG. 2 is an enlarged view of a second connector according to one embodiment of the present invention. [Figure 26] FIG. 2 is a front view of a fastener housing according to one embodiment of the present invention. [Figure 27] FIG. 2 is a close-up view of a tie portion and fastener housing according to one embodiment of the present invention. [Figure 28] 11 is a perspective view of a second conductive part being inserted into a second connector housing according to an embodiment of the present invention; FIG. [Figure 29] 11 is a perspective view of a fastening housing according to an embodiment of the present invention being fastened to a second connector housing and a second conductive portion; FIG. [Diagram 30] 1 is a cross-sectional view of a connector module according to one embodiment of the present invention. [Diagram 31] FIG. 2 is an internal close-up view of a connector module according to one embodiment of the present invention. [Diagram 32] 2 is an internal cross-sectional view of a connector module according to one embodiment of the present invention; FIG. [Diagram 33] 1 is a schematic diagram showing a state in which a vision inspection is performed on a connector module using a vision inspection device according to one embodiment of the present invention. FIG. [Diagram 34] 4 is a flowchart showing a flow of performing a vision inspection according to an embodiment of the present invention. [Diagram 35] 1 is a perspective view showing a connector module to be subjected to vision inspection in a connector inspection method according to an embodiment of the present invention; [Diagram 36] FIG. 4 is a plan view showing a reference line according to an embodiment of the present invention. [Figure 37] FIG. 4 is a plan view showing a reference line according to an embodiment of the present invention. [Figure 38] FIG. 4 is a plan view showing a reference line according to an embodiment of the present invention. [Figure 39]FIG. 4 is a plan view showing a reference line according to an embodiment of the present invention. [Diagram 40] FIG. 4 is a plan view showing a reference line according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in various different forms and is not limited to the following embodiments.

[0017] In order to clearly explain the present invention, detailed descriptions of parts that are not relevant to the description or related known technologies that may obscure the gist of the present invention have been omitted, and when referring to components in each drawing in this specification, the same or similar reference symbols will be used for the same or similar components throughout the specification.

[0018] Furthermore, the terms and words used in this specification and the claims should not be interpreted in a limited manner to their ordinary or dictionary meanings, but should be interpreted in a manner that is consistent with the technical ideas of the present invention, based on the principle that inventors can appropriately define the concepts of terms in order to best describe their invention.

[0019] [Theme 1] FIG. 1 is an oblique view showing a battery module 1 according to one embodiment of the present invention, FIG. 2 is a plan view showing the battery module 1 according to one embodiment of the present invention as viewed from above, FIG. 3 is an oblique view showing the battery module 1 according to one embodiment of the present invention with the upper case 2 omitted, and FIG. 4 is a partially enlarged view showing the connector module 100 attached to the control unit 10 in the battery module 1 according to one embodiment of the present invention.

[0020] <Structure of battery module 1> Referring to FIG. 1, the battery module 1 may include a plurality of batteries (e.g., a plurality of batteries 2 in FIG. 3). For example, the plurality of batteries 2 may be secondary batteries that can be repeatedly charged and discharged. The plurality of batteries 2 may be regularly arranged in a predetermined pattern, but is not limited thereto. The plurality of batteries 2 may be electrically connected to the outside of the battery module 1.

[0021] The battery module 1 may include a battery case 3. For example, the battery case 3 may be provided so as to encase a plurality of batteries 2. The battery case 2 may form a part of the outer edge of the battery module 1.

[0022] The battery case 3 may include an upper case 3-1, a side case 3-2, and a lower case 3-3. For example, the upper case 3-1 may form the upper part of the battery module 1 while covering the upper side of the plurality of batteries 2. The side case 3-2 may form the side part of the battery module 1 while covering the side of the plurality of batteries 2. The lower case 3-3 may form the lower part of the battery module 1 while covering the lower side of the plurality of batteries 2.

[0023] At least two of the upper case 3-1, the side case 3-2 and the lower case 3-3 may be integrally formed.

[0024] For example, when the upper case 3-1 and the lower case 3-3 are integrally formed, a plurality of batteries 2 can be placed inside the battery case 3 from which the side case 3-2 has been removed, and then the side case 3-2 can be assembled.

[0025] For example, when the upper case 3-1 and the side case 3-2 are integrally formed, the lower case 3-3 may be assembled after a plurality of batteries 2 are placed inside the battery case 3 from which the lower case 3-3 has been removed.

[0026] The battery module 1 may include a control unit 10. For example, the control unit 10 may be attached to the battery case 3. Specifically, for example, the control unit 10 may be attached to the upper case 3-1. The control unit 10 may be provided so as to be capable of wireless communication with an external control device.

[0027] The battery module 1 may include a connector module 100 (see FIG. 3). For example, the connector module 100 may electrically connect the control unit 10 and a plurality of batteries 2. In addition, the connector module 100 may be attached to and detached from the control unit 10.

[0028] The control unit 10 may include a control PCB 11. For example, the control PCB 11 may be electrically connected to the plurality of batteries 2 via a connector module 100. The control PCB 11 may be provided to be capable of wireless communication with an external control device. The control PCB 11 may be attached to the battery case 3 (or the upper case 3-1). Mounting the control PCB 11 on the upper part may be advantageous in wireless communication.

[0029] The control PCB 11 may be mounted on the PCB frame 13. For example, the PCB frame 13 may be a frame for mounting the control PCB 11. The control PCB 11 may be mounted to the upper case 3-1 via the PCB frame 13. More specifically, the control PCB 11 may be mounted to the PCB frame 13, and the PCB frame 13 may be mounted to the upper case 3-1. In other words, the PCB frame 13 may be disposed in a PCB mounting area formed in the upper case 3-1 in a concave or recessed shape. In this case, the PCB frame 13 may be visible from the outside when the control unit cover 12 is not attached. However, the present invention is not limited thereto.

[0030] The control unit 10 may include a control unit cover 12. For example, the control unit cover 12 may cover the control PCB 11. The control unit cover 12 may be attached to the battery case 3 (or the upper case 3-1). The control unit cover 12 may cover the upper side of the control PCB 11, thereby protecting the control PCB 11 from external impacts of the control unit 10.

[0031] 2, the control unit 10 may be provided in the upper case 3-1 of the battery case 3. The area of ​​the region where the control unit 10 is mounted may be 20% or less of the area of ​​the upper case 3-1. For example, when the area of ​​the upper case 3-1 is 125288 mm^2, the area of ​​the region where the control unit 10 is mounted may be 22752 mm^2. In this case, the area of ​​the region where the control unit 10 is mounted may be about 18% of the area of ​​the upper case 3-1. However, the above values ​​are merely examples and may not be limited thereto. By forming the area of ​​the region where the control unit 10 is mounted to be 20% or less of the area of ​​the upper case 3-1, it is possible to effectively utilize the limited space.

[0032] 3 and 4, the connector module 100 may be mounted on the control PCB 11. For example, the connector module 100 may be mounted on the control PCB 11. The connector module 100 may be mounted on the control PCB 11 so as to be located in the space between the control PCB 11 and the control unit cover 12. However, the present invention is not limited to this.

[0033] The connector module 100 may include a plurality of connector modules (e.g., 101, 102). For example, the connector module 100 may include a first connector module 101. The first connector module 101 may extend toward one side of the battery case 3 and may be connected to first electrodes of the plurality of batteries 2. The connector module 100 may include a second connector module 102. The second connector module 102 may extend toward the other side of the battery case 3 and may be connected to second electrodes having a different polarity from the first electrodes of the plurality of batteries 2. The connector module 100 may include a plurality of connector modules 101, 102, so that the connector module 100 may be effectively connected to electrodes having different polarities of the plurality of batteries 2. However, without being limited to the above, the connector module 100 may be formed in one module. For example, one connector module 100 may extend toward the other side of the battery case 3 and may be connected to electrodes having different polarities of the plurality of batteries 2.

[0034] The first connector module 101 and the second connector module 102 may be spaced apart. For example, the first connector module 101 and the second connector module 102 may be mounted on the control PCB 11 and spaced apart at a predetermined interval. The predetermined interval at which the first connector module 101 and the second connector module 102 are spaced apart may not be particularly limited. In other words, the range at which the first connector module 101 and the second connector module 102 can be spaced apart from each other on the control PCB 11 may be a range in which the first connector module 101 and the second connector module 102 do not overlap each other so that incorrect assembly does not occur. However, the above-mentioned numerical ranges are merely examples and may not be limited thereto.

[0035] The first connector module 101 and the second connector module 102 may extend in opposite directions. For example, the first connector module 101 and the second connector module 102 may include a conductive portion, and each conductive portion may be coupled to electrodes having different polarities. The conductive portion may correspond to the second conductive portion 310 described below. By arranging the first connector module 101 and the second connector module 102 apart from each other, the length of the conductive portion (e.g., the second conductive portion 310 described below) extending for electrical connection may be effectively reduced in proportion to the degree of separation. In the above description, the conductive portion is described as being included in the connector module, but the conductive portion may be described and understood as a separate configuration, being an FFC coupled to the connector module.

[0036] The connector module 100 may include a first connector 200 and a second connector 300. For example, the first connector 200 may be attached (or coupled) to be electrically coupled to the control unit 10 (or the control PCB 11). The second connector 300 may be attached to and detached from the first connector 200. Specifically, for example, the second connector 300 may be hook-coupled (or engaged) to the first connector 200. When the connector module 100 includes a plurality of connector modules 101, 102, each of the plurality of connector modules 101, 102 may include the first connector 200 and the second connector 300.

[0037] 5 is an exploded perspective view showing a connector module 100 according to an embodiment of the present invention. The description of the above embodiment can be applied equally or similarly to this embodiment.

[0038] <Structure of Connector Module 100> The connector module 100 may be formed by mounting the second connector 300 to the first connector 200. By mounting the second connector 300 to the first connector 200, the control PCB 11 and the plurality of batteries 2 may be electrically connected to each other.

[0039] 5, the first connector 200 may include a first conductive part 210. For example, the first conductive part 210 may be electrically connected to the control unit 10. Specifically, the first conductive part 210 may be electrically connected to the control PCB 11.

[0040] The first connector 200 may include a first connector housing 220. For example, the first connector housing 220 may form an outer edge of the first connector 200. An insertion space V into which the second connector 300 may be inserted may be formed inside the first connector housing 220 (see FIG. 18, etc.).

[0041] A hole 230 may be formed in the first connector 200. For example, the first connector housing 220 may be formed with a hole 230 that is provided so that a part of the second connector 300 (or a binding part 322 described below) can be hook-coupled. A plurality of holes 230 may be formed.

[0042] The second connector 300 may include a second conductive part 310. For example, the second conductive part 310 may extend to a predetermined length so as to be electrically connected to the plurality of batteries 2. The second conductive part 310 may include a folded portion during the extension. As another example, the second conductive part 310 may be a flat flexible cable (FFC).

[0043] Although the above describes the second conductive portion 310 as being included in the second connector 300, the second conductive portion 310 is an FFCC that is connected to the second connector 300, and may be described and understood as a separate configuration.

[0044] The second connector 300 may include a conductive film 311. For example, the conductive film 311 may be disposed on the second conductive part 310. Specifically, the conductive film 311 may be disposed between the second conductive part 310 and the second connector housing 320.

[0045] Although the conductive film 311 is described above as being included in the second connector 300, the conductive film 311 may be described and understood as being otherwise configured.

[0046] The second connector 300 may include a second connector housing 320. For example, the second connector housing 320 may form an outer edge of the second connector 300. The second connector housing 320 may be inserted into an insertion space V inside the first connector housing 220.

[0047] The second connector 300 may include a binding portion 322. The binding portion 322 may be provided in the second connector housing 320 to be rotatable to a predetermined degree. For example, the binding portion 322 may be rotatable in a direction toward or away from the second connector housing 320 in the process of being inserted into the first connector 200. In other words, the binding portion 322 may be rotated to include a section in which a difference in height occurs at the end of the binding portion 322 in the process of being inserted into the first connector 200. The binding portion 322 (or the end of the binding portion 322) may pass through the hole 230 of the first connector 200 and be bound to the first connector housing 220, thereby binding the first connector 200 and the second connector 300.

[0048] The connector module 100 may include a fastening housing 400. The fastening housing 400 may limit the movement of the second conductive part 310 relative to the second connector housing 320. The fastening housing 400 may limit the movement of the second conductive part 310, thereby stably maintaining electrical contact between the first conductive part 210 and the second conductive part 310.

[0049] Fig. 6 is a vertical cross-sectional view showing a state in which the connector module 100 is attached to the control unit 10 according to an embodiment of the present invention, and Fig. 7 is a vertical cross-sectional view showing a cross-section of the control unit cover 12 according to an embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment. The following description will be given with reference to Figs. 6 and 7.

[0050] <Structure of control unit 10> The control PCB 11 may be disposed on a PCB frame 13 disposed in a PCB mounting area formed in a recessed or dented shape in the upper case 3-1. The control PCB 11 may include an area in which the connector module 100 is disposed and an area in which the connector module 100 is not disposed. The area in which the connector module 100 is not disposed may be an area of ​​the control PCB 11 other than the area in which the connector module 100 is disposed.

[0051] The control unit cover 12 can define an accommodation space in which the connector module 100 is accommodated. For example, the control unit cover 12 can define an accommodation space in which the connector module 100 is accommodated by being disposed in the battery case 3 (or the upper case 3-1) so as to cover the control PCB 11. As another example, the control unit cover 12 can cover the upper part of the connector module 100 by being attached to the battery case 3 (or the upper case 3-1).

[0052] In the area where the connector module 100 is not arranged, the height H1 from the control PCB 11 to the control unit cover 12 can be less than 4 mm (eg, 3.92 mm).

[0053] The control unit cover 12 may include a cover recess 12-1. The cover recess 12-1 may be formed by recessing a predetermined amount of an area of ​​the control unit cover 12 facing the connector module 100. Specifically, for example, in the area where the connector module 100 is disposed, the height from the control PCB 11 to the control unit cover 12 (or the height H2 of the cover recess 12-1) may be 5 mm or less.

[0054] The region of the cover recess 12-1 facing the connector module 100 may include a curved region. For example, the region facing the connector module 100 may be formed with a gently inclined region, so that damage to the connector module 100 and the control unit cover 12 can be minimized even in the event of a collision or contact with the connector module 100.

[0055] The predetermined recessed degree (or height) H4 of the cover recessed portion 12-1 may be 2 / 3 or more of the thickness of the remaining portion that is not recessed. For example, the thickness of the cover recessed portion 12-1 of the control unit cover 12 may be 0.5 mm, and the thickness of the remaining portion may be 1.5 mm.

[0056] The thickness of the cover recess 12-1 may be 40% or less of the thickness of the remaining portion. For example, the thickness of the cover recess 12-1 of the control unit cover 12 may be 0.5 mm, and the thickness of the remaining portion may be 1.5 mm.

[0057] In this case, the predetermined recessed degree (H4) may be 1 mm.

[0058] The height H3 of the connector module 100 may be smaller than the height H2 of the cover recess 12-1. For example, when the height H2 of the cover recess 12-1 is formed to be 5 mm or less, the height of the connector module 100 may be formed to be 4 mm or less. Specifically, for example, the height H2 of the cover recess 12-1 may be 4.92 mm, and the height H3 of the connector module 100 may be 3.9 mm. However, the above numerical ranges are merely examples and may not be limited thereto.

[0059] The distance from the control PCB 11 to the control unit cover 12 may be within a range of 3.9 mm to 5 mm. For example, the distance from any region of the control PCB 11 to the control unit cover 12 may be within a range of 3.9 mm to 5 mm. Specifically, for example, in a region of the control PCB 11 where the connector module 100 is disposed, the distance from the control PCB 11 to the control unit cover 12 may be 4.92 mm. Also, in the remaining region of the control PCB 11, the distance from the control PCB 11 to the control unit cover 12 may be 3.92 mm. However, the above-mentioned numerical ranges are examples having an error range of 0.05 mm, and may not be limited thereto.

[0060] As described above, by providing the control unit cover 12 with the cover recess 12-1, it is possible to effectively reduce the size of the control unit cover 12 by preventing the height of the control unit cover 12 itself from being increased by the connector module 100. In addition, by forming the thickness of the remaining area of ​​the control unit cover 12 where the cover recess 12-1 is not formed to be thicker than the thickness of the cover recess 12-1, it is possible to effectively reinforce the overall rigidity of the control unit cover 12.

[0061] 8 is a perspective view showing the arrangement of the second conductive part 310 according to an embodiment of the present invention. The description of the above embodiment may be applied equally or similarly to this embodiment.

[0062] <Structure of second conductive part 310> The second connector 300 may include a second conductive portion 310. Although the second conductive portion 310 is described as being included in the second connector 300, the second conductive portion 310 is an FFC that is coupled to the second connector 300, and may be described and understood as a separate configuration.

[0063] The second conductive part 310 may be electrically connected to the plurality of batteries 2. For example, the second conductive part 310 may extend a predetermined length so as to be electrically connected to the plurality of batteries 2. The predetermined length may be a length that extends from the second connector housing 320 to one side (or the other side) of the battery case 3 and is capable of being electrically connected to the plurality of batteries 2.

[0064] The second conductive part 310 may include folded parts 312, 313 during extension. For example, the second conductive part 310 may include a first folding part 312 and a second folding part 313 during extension. To be more specific, the second conductive part 310 may be an FFC and may maintain electrical connection even when folded. Thus, by folding the second conductive part 310 during extension, spatial efficiency may be maximized and a plurality of batteries 2 may be effectively connected. In addition, the folding of the second conductive part 310 may be structurally adaptively designed and realized in various paths, thereby effectively realizing paths for electrical connection.

[0065] A flexible flat cable (FFC) is a cable (e.g., a ribbon-shaped cable) that is connected via a connector housing, and a flexible printed circuit (FPC) is a printed circuit that is printed using a printing method, and an FFC may be taller than an FPC. However, according to the above-described embodiment, the connector module 100 is formed with a height of 4 mm or less to maximize spatial efficiency.

[0066] [Theme 2] Fig. 9 is a perspective view showing a state in which the first connector 200 according to an embodiment of the present invention is seen from one direction, and Fig. 10 is a perspective view showing a state in which the first connector 200 according to an embodiment of the present invention is seen from another direction. The description of the above embodiment can be applied in the same or similar manner to this embodiment. The following description will be made with reference to Figs. 9 and 10.

[0067] <Reinforcement Structure of First Connector 200> The first connector 200 may include a protruding portion 221. For example, the protruding portion 221 may be formed to protrude from an inner bottom surface of the first connector housing 220. In addition, the first conductive part 210 may be attached to the protruding portion 221.

[0068] The raised portion 221 may include a body portion 222. For example, the body portion 222 may protrude at a first height h1 from the inner bottom surface of the first connector housing 220. Specifically, for example, when the height H3 of the first connector 200 is 3.5 mm to 4 mm, the first height h1 may be within a range of 0.4 mm to 0.6 mm.

[0069] The raised portion 221 may include a partition wall 223. For example, the partition wall 223 may be formed to protrude from the body portion 222. The partition wall 223 may protrude from the inner bottom surface to a second height h2 higher than the first height h1. The partition wall 223 may protrude from the body portion 222 in the form of a plurality of partition walls. The body portion 222 may be formed to include an area in which the partition wall 223 is disposed when viewed from above, and may extend toward the opening 220-1 side.

[0070] A plurality of first conductive parts 210 may be arranged in a direction crossing the direction DI in which the second connector 300 is inserted. For example, the first conductive part 210 may be formed in the form of a plurality of connecting terminals and may be arranged in the crossing direction. As another example, the first conductive part 210 may have a form in which a plurality of connecting terminals are alternately arranged with the partition walls 223. The alternate arrangement may be for preventing a short circuit of the connecting terminals.

[0071] The body portion 222 may extend parallel to the direction in which the first conductive portion 210 is arranged. For example, the length w1 of the body portion 222 in a direction crossing the direction DI in which the second connector 300 is inserted may be in the range of 10 mm to 13 mm. The width w2 of each of the partitions 223 may be in the range of 0.5 mm to 0.7 mm. The partitions 223 may include a plastic material (e.g., engineering plastic). For example, the partitions 223 may be PA9T, but are not limited thereto. When the partitions 223 are formed of the above-mentioned plastic material, they may have long-term heat resistance at high temperatures, high durability against various chemicals, and general effects of mechanical properties obtained by engineering plastics.

[0072] Since the first connector 200 is formed with the reinforcing structure of the body portion 222 and the raised portion 221 including the partition wall 223, it is possible to effectively prevent the partition wall 223 from being damaged or broken due to a direct collision or interference with the second connector housing 320 when the second connector 300 is inserted. Since the body portion 222 has a structure that fills the lower space of the partition wall 223, the strength of the partition wall can be supplemented, so that the partition wall is not easily damaged and can firmly maintain its shape.

[0073] 11 is a perspective view showing a depression line 224 according to one embodiment of the present invention. The description of the above embodiment may be applied equally or similarly to this embodiment.

[0074] <Depression line 224> The body portion 222 can include a dimple line 224. For example, the dimple line 224 can be recessed into the body portion 222.

[0075] The recessed lines 224 may be formed alternately with the partition walls 223. As a specific example, the recessed lines 224 may be formed alternately between the partition walls 223 when viewed from the opening 220-1 side.

[0076] The recess line 224 may extend to the opening side 220-1 away from the bulkhead 223. For example, the recess line 224 may extend to the opening side 220-1 away from the bulkhead 223 along a direction parallel to the direction in which the second connector 300 is inserted.

[0077] The recessed line 224 may be provided to guide the comb structure 350 described below. For example, the recessed line 224 may have a shape corresponding to the comb structure 350. The recessed line 224 may be formed as a recess in the body portion 222 so that the comb structure 350 may be guided during insertion.

[0078] By providing the recess line 224 on the body portion 222, when the second connector 300 is inserted into the first connector 200, the comb-shaped structure 350 does not deviate from the insertion path, and damage or breakage of the partition 223 due to direct collision or interference with the second connector housing 320 can be effectively prevented.

[0079] The recess line 224 may be provided such that a portion of the comb structure 350 is mounted when the comb structure 350 is inserted into the partition 223. For example, when an end of the comb structure 350 is inserted and mounted between the partitions 223, a portion of the comb structure 350 on the comb base portion 360 side may be mounted in the recess line 224. By mounting a portion of the comb structure 350 in the recess line 224, vibration due to vibration or impact when the first connector 200 and the second connector 300 are coupled can be further prevented, and thus electrical connection can be stably maintained.

[0080] FIG. 12 is an oblique view showing the comb-shaped structure 350 of the second connector 300 according to one embodiment of the present invention, FIG. 13a is a bottom view showing the comb-shaped structure 350 of the second connector 300 according to one embodiment of the present invention from the bottom, and FIG. 13b is an oblique view of the second connector according to one embodiment of the present invention from the bottom.

[0081] The description of the above embodiment can be applied in the same or similar manner to this embodiment, which will be described below with reference to Figures 12, 13a and 13b.

[0082] <Open Section 340> The second connector 300 may have an open portion 340. For example, the open portion 340 may be a space in which the partition 223 is located when the first connector 200 and the second connector 300 are coupled. Specifically, for example, the open portion 340 may refer to a space between a protruding portion 321-2 and the comb structure 350, which will be described later. Also, the open portion 340 may refer to a space between the comb structures 350. When the first connector 200 and the second connector 300 are coupled, the partition 223 may be inserted into the space between the protruding portion 321-2 and the comb structure 350 or the space between the comb structures 350.

[0083] <Comb-shaped structure 350> The second connector 300 may include a comb-shaped base portion 360. For example, the comb-shaped base portion 360 may be a portion that faces the body portion 222 when the second connector 300 is inserted into the first connector 200.

[0084] The second connector 300 may include a comb structure 350. For example, the comb structure 350 may protrude from a comb base portion 360 toward the first connector 200. As another example, the comb structure 350 may have a shape corresponding to the raised portion 221 of the first connector 200.

[0085] The second conductive part 310 may be inserted and placed in a recessed portion surrounded by a frame (e.g., frame 321 in FIGS. 25 and 28) and the binding part 322. A plurality of holes 350-1 are formed through the space between the comb-shaped structures 350, and the first conductive part 210 may contact a lower surface of the second conductive part 310 through the through-formed holes 350-1. In this case, the first conductive part 210 may contact one surface of the second conductive part 310 and be electrically connected thereto.

[0086] Based on the direction in which the second connector 300 is inserted, the ratio of the length of the portion of the second connector 300 inserted into the first connector 200 to the length of the comb structure 350 may be in the range of 1 to 3. For example, based on the direction in which the second connector 300 is inserted, the length of the comb structure 350 may be in the range of 2 mm to 4 mm, and the length of the portion of the second connector 300 inserted into the first connector 200 may be in the range of 4 mm to 6 mm. Specifically, when the length of the comb structure 350 is 2 mm and the length of the inserted portion is 6 mm, the ratio of the length of the portion of the second connector 300 inserted into the first connector 200 to the length of the comb structure 350 may be 3. Also, when the length of the comb structure 350 is 4 mm and the length of the inserted portion is 4 mm, the ratio of the length of the portion of the second connector 300 inserted into the first connector 200 to the length of the comb structure 350 may be 1. However, the above may not be limited to the above.

[0087] The second connector 300 may include a protruding portion 321-2. For example, the protruding portion 321-2 may protrude from both ends of the second connector housing 320 to wrap both sides of the protruding portion 221 when the second connector 300 is inserted into the first connector 200. Also, the protruding portion 321-2 may extend from both ends of the second connector housing 320 based on the direction in which the second connector 300 is inserted. As another example, the protruding portion 321-2 may protrude from the second connector housing 320 to face the inner bottom surface when the second connector 300 is inserted into the first connector 200. The protruding portion 321-2 is provided to wrap the protruding portion 221 of the first connector 200, which has the effect of guiding the insertion of the second connector 300. Also, by guiding the second connector 300, damage or breakage of the bulkhead 223 may be prevented, and a short circuit of the connecting terminal of the first conductive part 210 may be prevented.

[0088] Fig. 14 is a plan view showing a state in which the first connector 200 and the second connector 300 according to an embodiment of the present invention are coupled, Fig. 15 is a vertical cross-sectional view showing a cross section taken along the BB line in a state in which the first connector 200 and the second connector 300 according to an embodiment of the present invention are coupled, and Fig. 16 is a vertical cross-sectional view showing a cross section taken along the CC line in a state in which the first connector 200 and the second connector 300 according to an embodiment of the present invention are coupled. The explanations regarding the above-mentioned embodiments can be applied in the same or similar manner to this embodiment. The following will be explained with reference to Figs. 14 to 16.

[0089] <Relationship between the raised portion 221, the comb structure 350, and the comb base portion 360> The second connector 300 may be inserted and attached inside the first connector 200. In this case, the binding portion 322 of the second connector 300 may be hook-coupled to the hole 230 of the first connector 200.

[0090] The fastening housing 400 may limit the movement of the second conductive part 310. For example, the fastening housing 400 may be attached to the second connector housing 320 so as to limit the movement of the second conductive part 310.

[0091] Referring to the cross section taken along line BB, the comb structure 350 may be inserted between the bulkheads 223. For example, the comb structure 350 may be provided to fit into a space between the bulkheads 223 when the second connector 300 is inserted and attached to the first connector 200. In other words, the comb structure 350 and the bulkheads 223 may have corresponding structures to enable insertion coupling.

[0092] Referring to the cross section taken along line CC, the comb base portion 360 can be aligned with the body portion 222. For example, the comb base portion 360 can be provided to face and align with the body portion 222 when the second connector 300 is inserted and attached to the first connector 200. In other words, the comb base portion 360 and the body portion 222 can have structures corresponding to each other so that they align when they face each other.

[0093] [Theme 3] Fig. 17 is a plan view showing a state in which the first connector 200 according to an embodiment of the present invention is seen from above, and Fig. 18 is a vertical cross-sectional view showing a cross section of the first connector 200 according to an embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment. The following description will be made with reference to Figs. 17 and 18.

[0094] <Structure of the first connector housing 220> The first connector 200 may include a first connector housing 220. The first connector housing 220 may have an opening 220-1 formed therein so that the second connector 300 can be inserted therein.

[0095] The first connector housing 220 may define an insertion space V. For example, the insertion space V may be defined by an upper portion 220-2, a side portion 220-3, and a lower portion 220-4 of the first connector housing 220. Specifically, the insertion space V may be defined by being surrounded by an inner surface of the upper portion 220-2, an inner surface of the side portion 220-3, and an inner surface of the lower portion 220-4.

[0096] The lower portion 220-4 may be provided with a first conductive part 21 to be electrically connected to the second connector 300.

[0097] The first connector housing 220 may have a hole 230 formed through the upper portion 220-2 so that the second connector 300 can be hook-coupled thereto.

[0098] The first connector housing 220 may include a protruding rib 225. For example, the protruding rib 225 may be formed on an edge of the upper portion 220-2. Specifically, the protruding rib 225 may be formed to protrude from an edge of the upper portion 220-2 on a side where the second connector 300 is inserted. The protruding rib 225 may reinforce the structural rigidity of the upper portion 220-2 in which the hole 230 is formed.

[0099] 19 is a plan view showing the protruding rib 225 of the first connector 200 according to one embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment.

[0100] <Structure of the protruding rib 225> The edge of the upper portion 220-2 on the opening 220-1 side may include a protruding rib 225. For example, the upper portion 220-2 may include a protruding rib 225 protruding in a direction from the hole 230 toward the opening 220-1 side.

[0101] The distance A from the edge of the hole 230 on the opening 220-1 side to the end of the protruding rib 225 may be in the range of 3 to 4 times the thickness T of the upper part 220-2. For example, the thickness T of the upper part 220-2 may be in the range of 0.4 mm to 0.5 mm. In this case, the distance A may be in the range of 1.2 mm to 2.0 mm.

[0102] The protruding degree A' of the protruding rib 225 may be determined according to the thickness T of the upper portion 220-2. For example, the thicker the thickness T of the upper portion 220-2, the greater the protruding degree A'.

[0103] The protruding rib 225 is formed on the first connector housing 220, thereby reinforcing the rigidity of the upper portion 220-2 in which the hole 230 is formed. For example, even if an external force is applied, the pressure is dispersed in proportion to the extent to which the protruding rib 225 protrudes, thereby preventing the upper portion 220-2 from cracking or breaking.

[0104] Cracks in the upper portion 220-2 may occur in a diagonal direction relative to the edge where the protruding rib 225 is formed, and as the protruding rib 225 is formed to protrude, the diagonal length g is also extended, thereby reinforcing the strength in the diagonal direction.

[0105] 20 is a plan view showing a hole 230 of a first connector 200 according to an embodiment of the present invention. The description of the above embodiment can be applied equally or similarly to this embodiment.

[0106] <Hall 230 Structure> A hole 230 may be formed in the first connector housing 220. For example, the hole 230 may include a rounded edge on the opening 220-1 side. The rounded edge of the hole 230 may have a fillet radius R of 0.3 mm to 1 mm.

[0107] The hole 230 may include a plurality of holes. For example, the plurality of holes may be formed along a direction parallel to an edge of the upper portion 220-2 on the opening 220-1 side. The protruding rib 225 may extend parallel to the direction in which the plurality of holes are formed.

[0108] When the protruding rib 225 is formed to extend along the plurality of holes, it is possible to effectively prevent the occurrence of cracks or damage in the upper portion 220-1 in which the plurality of holes are formed. Even if an external force is applied, the pressure is dispersed in proportion to the extent to which the protruding rib 225 extends, so that it is possible to prevent the occurrence of cracks or damage in the upper portion 220-2.

[0109] Fig. 21 is a perspective view showing an internal rib 226 according to one embodiment of the present invention, and Fig. 22 is a front view showing an internal rib 226 according to one embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment. The following description will be made with reference to Figs. 21 and 22.

[0110] <Structure of the internal rib 226> The upper portion 220-2 may include an internal rib 226. For example, the internal rib 226 may protrude toward the insertion space V. Also, the internal rib 226 may protrude in a direction parallel to the direction DI in which the second connector 300 is inserted.

[0111] The internal rib 226 may not hinder the insertion of the second connector 300 into the insertion space V. For example, the internal rib 226 may be formed in an area other than the insertion path toward the insertion space V of the second connector 300. As another example, a surface of the second connector housing 320 facing a surface of the upper portion 220-2 of the first connector housing 220 on which the internal rib 226 is formed may be formed in a corresponding structure.

[0112] The internal rib 226 may protrude in a range of 1 to 2 times the thickness T of the upper portion 220-2. For example, when the thickness T of the upper portion 220-2 is in a range of 0.4 mm to 0.5 mm, the internal rib 226 may protrude in a range of 0.8 mm to 1.0 mm. When the protrusion degree of the internal rib 226 is designed in a range of 1 to 2 times the thickness T of the upper portion 220-2, the rigidity can be effectively ensured, apart from further protrusion. However, the above numerical ranges are merely examples, and may not be limited thereto.

[0113] The upper portion 220-2 may include a plurality of internal ribs 226. For example, the internal ribs 226 may protrude toward the insertion space V. Also, the internal ribs 226 may be formed symmetrically around the protruding rib 225.

[0114] The plurality of internal ribs 226 may be formed alternately with the holes 230. For example, the plurality of internal ribs 226 may be formed alternately with the holes 230 based on the inner surface of the upper portion 220-2. As a specific example, the holes 230 may be two holes, and the internal rib 226 may include three internal ribs formed alternately and spaced apart on either side of the two holes 230.

[0115] The internal rib 226 can reinforce the rigidity of the upper portion 220-2 having a small thickness T. In addition, the internal rib 226 can reinforce the rigidity of the upper portion 220-2 in which the hole 230 is formed.

[0116] 23 is a front view showing the arrangement of the protruding ribs 225 and the internal ribs 226 according to one embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment.

[0117] <Arrangement of the protruding ribs 225 and the internal ribs 226> The first connector housing 220 may include a protruding rib 225 and an internal rib 226. For example, the first connector housing 220 may include a protruding rib 225 protruding from an edge of the upper portion 220-2 on the opening 220-1 side in a direction from the hole 230 toward the opening 220-1 side. The first connector housing 220 may also include an internal rib 226 protruding from the upper portion 220-2 toward the insertion space V.

[0118] The protruding rib 225 and the internal rib 226 may include overlapping regions. For example, the protruding rib 225 and the internal rib 226 may include overlapping regions along edges when viewed toward the opening 220-1 in the direction DI in which the second connector 300 is inserted.

[0119] Referring to FIG. 23, the internal rib 226 may protrude toward the insertion space V with a predetermined protruding length B1. The internal rib 226 may extend in a direction along the edge of the upper portion 220-2 on the opening 220-1 side with a predetermined extension length B2. In this case, the protruding rib 225 and the internal rib 226 may be formed with a predetermined overlap length B3. The length of the overlapping region may be the overlap length B3. As a specific example, the overlap length B3 may be in the range of 25% to 50% of the length B2 along the edge of the internal rib 226. The larger the overlap length B3, the greater the reinforcement strength.

[0120] A plurality of internal ribs 226 may be formed, and the plurality of internal ribs 226 may have different widths. Specifically, the internal ribs 226 may include three internal ribs. The three internal ribs may include a central rib formed between two holes and having a first width, and an outer rib formed outside the two holes and having a second width larger than the first width.

[0121] The extent to which the central rib among the three internal ribs protrudes toward the insertion space may be greater than the extent to which the outer ribs protrude toward the insertion space. The central rib may be more likely to come into contact with the second connector 300 when viewed from the insertion path when the second connector 300 is inserted into the insertion space. The central rib protrudes more than the outer ribs, so that the strength of the central rib can be reinforced and damage due to contact can be prevented. In addition, the central rib may perform a guide function when the second connector 300 is inserted. The central rib may extend to the area where the protruding rib 225 protrudes. In other words, the central rib may extend further toward the opening 220-1 side than the outer ribs. The width and protrusion degree of the above-mentioned internal rib can be variously embodied depending on the number, position, and size of the holes 230.

[0122] The protruding degrees A', B1 of the protruding rib 225 and the internal rib 226 may be determined according to the thickness T of the upper portion 220-2. When the protruding degrees A', B1 are determined according to the thickness T of the upper portion 220-2, the rigidity of the thin thickness T of the upper portion 220-2 in which the holes 230 are formed can be adaptively reinforced according to the structure.

[0123] [Theme 4] <Structure for preventing separation of fastening housing 400> FIG. 24 is a perspective view of a second connector according to an embodiment of the present invention.

[0124] Referring to FIG. 24, the connector module 100 may include a first connector 200 and a second connector 300 (see FIG. 5).

[0125] The first connector 200 may be electrically connected to the control unit 10. The first connector 200 may include a first connector housing 220 and a first conductive portion 210.

[0126] The first connector housing 220 may form the exterior of the first connector 200. For example, the first connector housing 220 may include a housing shape having a structure formed with an inner recess. Specifically, the first connector housing 220 may include an opening 220-1 with one side open, and a first recessed portion 220a formed by recessing inward from the opening 220-1. The second connector 300 may be inserted and coupled into the first recessed portion 220a.

[0127] The first conductive part 210 may be connected to the first connector housing 220 and electrically connected to the control unit.

[0128] The second connector 300 may be electrically connected to the first connector 200. For example, the second connector 300 may be inserted and coupled to the first connector 200. Specifically, the second connector 300 may be inserted into a first recessed portion 220a formed on the inside of the first connector housing 220 and coupled to the first connector 200. For example, one side of the second connector 300 may be electrically connected to the first connector 200, i.e., the first conductive part 210, and the other side of the second connector 300 may be electrically connected to the plurality of battery cells 2.

[0129] The second connector 300 may include a second connector housing 320 , a second conductive portion 310 and a fastener housing 400 .

[0130] The second connector housing 320 forms the exterior of the second connector 300, and can be configured to be inserted and coupled to the first connector 200. That is, the second connector housing 320 can be inserted into the first recessed portion 220a of the first connector 200 and coupled integrally with the first connector 200.

[0131] The second connector housing 320 may include a frame 321 and a binding portion 322 (see FIG. 24).

[0132] The frame 321 can be inserted into and coupled to the first connector 200. That is, the frame 321 can be inserted into the first recessed portion 220a of the first connector housing 220 and structurally coupled to the first connector 200.

[0133] The binding part 322 may be connected to one surface of the frame 321 and coupled to the first connector 200. For example, the binding part 322 may be connected to an upper surface of the frame 321. The binding part 322 may be coupled to the first connector 200 by being coupled to an inner upper surface of the first connector housing 220 while being connected to the upper surface of the frame 321.

[0134] In this case, the fastening portion 322 may be coupled to the first connector 200 by a hook coupling. For example, the fastening portion 322 may include a lever shape. Specifically, a portion, i.e., a hole 230, is formed through the upper surface of the first connector housing 220 so that the upper surface of the first connector housing 220 and the first recessed portion 220a communicate with each other, and the fastening portion 322 may be coupled to the through-hole portion of the upper surface of the first connector housing 220.

[0135] More specifically, with the front of binding part 322 connected to frame 321, the rear of binding part 322 can move upward or downward based on the direction in which second connector 300 is inserted into first connector 200.

[0136] With the binding portion 322 spaced apart from the second conducting portion 310 at a predetermined interval, the second connector 300 is inserted and coupled to the first connector 200, and the binding portion 322 moves downward and then upward to couple with the perforated portion of the upper surface of the first connector housing 220, thereby binding the first connector 200 and the second connector 300 to each other by the binding portion 322. In this case, the binding portion 322 may also be spaced apart from the second conducting portion 310 at a predetermined interval.

[0137] Conversely, when binding portion 322 moves downward due to an external force from a user or the like, binding is released and second connector 300 can be detached from first connector 200.

[0138] 25 is an enlarged view of the second connector according to one embodiment of the present invention, and referring to FIG 25, the binding part 322 may include a protruding part 322-1 formed on the upper surface so as to protrude upward. When the first connector 200 and the second connector 300 are coupled, the user may press the protruding part 322-1 of the binding part 322 to decouple the second connector 300 from the first connector 200.

[0139] The second conductive unit 310 may be at least partially inserted into and coupled to the frame 321 to be electrically connected to the first conductive unit 210. That is, the second conductive unit 310 is configured to be electrically connected to a plurality of battery cells and may receive electrical signals from the plurality of battery cells and transmit the electrical signals to the first conductive unit 210. For example, the second conductive unit 310 may include a flexible flat cable (FFC) or the like.

[0140] An area surrounded by the frame 321 and the binding part 322 and having one side open is formed inside the frame 321, and the second conductive part 310 can be inserted and coupled to the frame 321 so as to be surrounded by the frame 321 and the binding part 322.

[0141] The fastening housing 400 may fasten the second connector housing 320 and the second conductive part 310 to each other. For example, the fastening housing 400 may enclose the second connector housing 320 in a state in which the second conductive part 310 is inserted and coupled to the second connector housing 320. Specifically, the fastening housing 400 may function to crimp and grip the second connector housing 320 and the second conductive part 310 to prevent the second conductive part 310 from coming off the second connector housing 320.

[0142] At the same time, the fastening housing 400 can restrict the binding part 322 from coming off the frame 321 by the step-like structure 410-1 that contacts one surface of the binding part 322. That is, the structure in which a part of the binding part 322 is engaged with the fastening housing 400 can prevent the binding part 322 from being distorted or moved excessively upward.

[0143] FIG. 26 is a front view of a fastener housing according to one embodiment of the present invention.

[0144] With reference to FIG. 26, the fastener housing 400 can include a fastener body 410 and a fastener portion 420 .

[0145] The fastening body 410 can contact the second connector housing 320 and the second conductive part 310 to fasten the second connector housing 320 and the second conductive part 310. For example, the fastening body 410 can fasten the second connector housing 320 and the second conductive part 310 to each other by wrapping a part of the rear of the fastening part 322 and crimping the second conductive part 310 while being located behind the fastening part 322.

[0146] The fastening body 410 may include a first fastening body 411 and a second fastening body 412 .

[0147] The first fastening body 411 may be located behind the binding portion 322 based on the direction in which the second connector 300 is inserted into the first connector 200. For example, the first fastening body 411 may be formed and arranged to be located behind the binding portion 322 and extend on both sides when viewed in the direction in which the second connector 300 is inserted into the second connector 300. That is, the first fastening body 411 may be formed along the rear of the binding portion 322.

[0148] The second fastening body 412 may be formed on both sides of the first fastening body 411 and may enclose a portion of both sides of the binding portion 322. In this case, the portion of the second fastening body 412 enclosing a portion of both sides of the binding portion 322 may include a step portion 410-1. That is, the fastening body 410 may include a step portion 410-1 that is in contact with one surface of the binding portion 322 and is formed in a stepped shape. However, the step portion 410-1 is not necessarily formed on both sides of the binding portion 322, and may be formed corresponding to at least one of the both sides of the binding portion 322.

[0149] When viewed in the direction in which the second connector 300 is inserted, the binding part 322 can be restricted from moving upward by being locked by the stepped part 410-1 of the fastening body 410. For example, when the rear part of the binding part 322 moves upward, the stepped part 410-1 can come into contact with the rear part of the binding part 322.

[0150] 25, when viewed from the front of the binding part 322, the step portion 410-1 may form a first surface 410a formed on the upper side of the binding part 322, a second surface 410b having one side connected to the lower side of the first surface 410a and contacting the upper surface of the binding part 322, and a third surface 410c formed along the side surface of the binding part 322 by being connected to the other side of the second surface 410b. In this case, since the upper surface of the binding part 322 is engaged with the second surface 410b, the upper surface of the binding part 322 may be located below the extension line of the second surface 410b. That is, the movement radius of the binding part 322 may be limited so that the upper surface of the binding part 322 does not move above the second surface 410b.

[0151] The fastening portion 322 is engaged with the second surface 410b, so that the movement of the fastening portion 322 can be restricted to the upper side of the second surface 410b. With this structure, the fastening portion 322 is restricted in movement to a predetermined radius, so that problems such as excessive distortion or detachment from the upper side of the frame 321 can be prevented.

[0152] As a result, the problem of the binding portion 322 floating upward and being deformed or damaged due to firing is prevented in advance, thereby increasing the structural stability of the second connector 300 and improving the connection stability of the first connector 200 and the second connector 300.

[0153] FIG. 27 is a close-up view of a tie portion and fastener housing according to one embodiment of the present invention.

[0154] 27, the upper surface of the first fastening body 411 may be located lower than the upper surface of the protruding portion 322-1 of the binding portion 322. That is, the protruding portion 322-1 of the binding portion 322 may be formed higher than the extended surface of the upper surface of the first fastening body 410. Since the protruding portion 322-1 of the binding portion 322 is located higher than the upper surface of the first fastening body 411, the user can more easily press and handle the protruding portion, thereby increasing the convenience of use of the connector module 100.

[0155] In this case, the distance S between the upper surface of the first fastening body 411 and the upper surface of the protruding portion 322-1 of the binding portion 322 may be 0.5 mm to 0.7 mm. If the distance S between the upper surface of the first fastening body 411 and the upper surface of the protruding portion 322-1 of the binding portion 322 is less than 0.5 mm, it may be difficult to distinguish between the upper surface of the first fastening body 411 and the upper surface of the protruding portion 322-1 of the binding portion 322 in use, and the convenience of use of the connector module 100 may be reduced. On the other hand, if the distance S between the upper surface of the first fastening body 411 and the upper surface of the protruding portion 322-1 of the binding portion 322 exceeds 0.7 mm, the height of the protruding portion 322-1 of the binding portion 322 becomes too high, which increases the overall height of the connector module 100, and may inefficiently occupy the internal space of the battery module 1.

[0156] In addition, when the height of the first fastening body 411 is L1 and the height of the second fastening body 412 is L2, the formula 0.3≦L1 / L2≦0.5 can be satisfied. If L1 / L2 is less than 0.3, the difference in height between the first fastening body 411 and the second fastening body 412 is small, making it difficult to grasp the position of the protruding part 322-1 of the binding part 322, which may reduce the convenience of use of the connector module 100. On the other hand, if L1 / L2 is more than 0.5, the height of the first fastening body 411 is significantly small, which may cause the first fastening body 411 to be easily damaged, and the height of the second fastening body 412 is significantly large, which may cause a problem of an increase in the height of the entire connector module 100.

[0157] The height L1 of the first fastening body 411 (in other words, the thickness of the first fastening body 411) may have a value of 0.8 to 1.2 mm. Due to the thickness of the first fastening body 411, when pressing the binding part 322, the hand can be supported so as not to be pressed excessively downward. This allows the binding part 322 to move only within an allowed range, reducing the risk of breakage and providing convenience in use.

[0158] The fastening portion 420 may be connected to one side of the fastening body 410 and coupled to a side of the second connector housing 320. For example, the fastening portion 420 may include a structure that is extended from both sides of the fastening body 410 and wraps around both sides of the second connector housing 320. That is, the fastening portion 420 may be formed along both sides of the frame 321 and coupled to both sides of the frame 321.

[0159] The fastening part 420 may be coupled to a side of the frame 321 through a ring structure. Specifically, one side of the fastening part 420 may be connected to the fastening body 410, and the ring structure 421 may be formed at the other end of the fastening part 420. The ring structure 421 of the fastening part 420 may be formed along the side of the frame 321 and fastened to the lower side of the frame 321.

[0160] More specifically, the fastening part 420 includes an inclined surface inclined toward a side surface of the frame 321, and the side surface of the frame 321 may include an inclined surface formed to correspond to the inclined surface of the fastening part 420. The ring structure 421 of the fastening part 420 may be engaged with the side surface of the frame 321 by a sliding manner in which the inclined surface of the fastening part 420 moves along the inclined surface of the side surface of the frame 321. That is, in a state in which the second conducting part 310 is inserted into the frame 321, the fastening housing 400 is fastened in a direction perpendicular to the direction in which the second conducting part 310 is inserted, and as the fastening housing 400 is fastened, the inclined surface of the fastening part 420 moves along the inclined surface of the side surface of the frame 321, so that the ring structure 421 of the fastening part 420 may be coupled to the lower side of the side surface of the frame 321.

[0161] [Theme 5] <Through-hole structure of fastening housing 400> Figure 28 is an oblique view of a second conductive part according to one embodiment of the present invention being inserted into a second connector housing, Figure 29 is an oblique view of a fastening housing according to one embodiment of the present invention being fastened to the second connector housing and the second conductive part, and Figure 30 is a cross-sectional view of a connector module according to one embodiment of the present invention.

[0162] 28 to 30, the fastening housing 400 may penetrate the second connector housing 320 and the second conductive part 310 to fasten the second connector housing 320 and the second conductive part 310. For example, the fastening housing 400 may further include a fastening pin 430 protruding from the fastening body 410 and penetrating the second connector housing 320 and the second conductive part 310. That is, the fastening pin 430 may be protruding from a lower surface of the fastening body 410 toward the second conductive part 310. The fastening pins 430 may be formed in pairs on both sides of a lower surface of the fastening body 410.

[0163] Specifically, the fastening body 410 may be formed to protrude toward the second conductive part 310 and form a portion that contacts the second conductive part 310. In addition, the fastening body 410 may be formed to protrude toward the second conductive part 310 and form a portion that contacts the conductive film 311. The fastening pin 430 may be formed to protrude from a portion that protrudes downward from the fastening body 410. That is, the lower surfaces of the first fastening body 411 and the second fastening body 412 may form the same surface. Due to the ring structure of the fastening part 420, the lower surfaces of the first fastening body 411 and the second fastening body 412 have a structure that protrudes further toward the second conductive part 310 compared to the lower surface of the fastening part 420, and the fastening pin 430 may be formed to protrude from the lower surfaces of the first fastening body 411 and the second fastening body 412.

[0164] The end of the fastening pin 430 may include at least one of a curved shape and a horn shape. Due to such a structure of the end of the fastening pin 430, the fastening pin 430 may be easily manufactured in a process of being coupled to the second connector housing 320.

[0165] The second connector housing 320 may include a first fastening hole 321a formed therethrough. For example, the first fastening hole 321a may be formed on an inner lower surface of the frame 321. Specifically, the second conductive part 310 is inserted and coupled to a recessed portion 320-1 surrounded by the frame 321 and the binding part 322, and the inner lower surface of the frame 321 is located on the opposite side of the binding part 322 based on the recessed portion 320-1, and the first fastening hole 321a may be formed through the inner lower surface of the frame 321. That is, the first fastening hole 321a may be formed to penetrate from the inner lower surface of the frame 321 to the lower surface of the frame 321.

[0166] The second conductive part 310 may include a second fastening hole 310a formed therethrough. That is, the second fastening hole 310a may be formed penetrating from the upper surface to the lower surface of the second conductive part 310. In this case, when the second conductive part 310 is inserted and coupled to the second connector housing 320, the first fastening hole 321a and the second fastening hole 310a may be formed on the same line. In addition, when the second conductive part 310 is inserted and coupled to the second connector housing 320, the fastening pin 430 may be disposed to integrally penetrate the first fastening hole 321a and the second fastening hole 310a.

[0167] The direction in which the second conductive part 310 is inserted into the second connector housing 320 and the direction in which the fastening pin 430 penetrates may be perpendicular to each other.

[0168] According to this structure, the fastening pin 430 can restrict the second conductive part 310 from being detached from the second connector housing 320. Specifically, the fastening pin 430 can fix the second conductive part 310 to the second connector housing 320 so as to restrict the movement of the second conductive part 310 in a direction parallel to the direction in which the second conductive part 310 is inserted into the second connector housing 320.

[0169] The fastening pin 430 is arranged to pass through the first fastening port 321a and the second fastening port 310a, and the fastening part 420 is connected to both sides of the frame 321 by a ring structure, thereby further increasing the connecting force between the second connector housing 320 and the second conductive part 310.

[0170] As a result, the fastening force between the second connector housing 320 and the second conductive part 310 is increased via the fastening pin 430, and the structural stability of the connector module 100 can be improved.

[0171] Furthermore, such a structure of the fastening pin 430 allows the contact area of ​​the first conductive part 210 and the second conductive part 310 to be kept constant. That is, the second conductive part 310 is fixed at a predetermined position inside the second connector housing 320, so that the first conductive part 210 and the second conductive part 310 always form a contact area in a constant area, and a pre-planned contact method and circuit arrangement can be maintained, thereby improving the quality of transmission and reception of electrical signals. As a result, such a structure allows electrical signals to be transmitted and received more precisely through the connector module 100, and the control quality of the control unit 10 can be further improved.

[0172] [Theme 6] <Tilt prevention structure> The frame 321 may include a structure for preventing a tilt phenomenon of the second connector 300. The tilt phenomenon refers to a phenomenon in which the appearance and angle of the second connector 300 changes when the second connector 300 is coupled to the first connector 200. Such a tilt phenomenon occurs due to a weakening of the coupling force between the first connector 200 and the second connector 300, causing problems that impair the structural stability of the connector module 100, such as the second connector 300 floating or coming off from the first connector 200.

[0173] The tilt phenomenon of the second connector 300 may occur due to the second connector 300 performing a rotational motion, such as rolling, yawing, and pitching about each axis. Specifically, referring to FIG. 24, there may be a rolling motion that rotates about the x-axis, a pitching motion that rotates about the y-axis, and a yawing motion that rotates about the z-axis. In this case, the x-axis may be formed in a direction parallel to the direction in which the second connector 300 is inserted. The y-axis may be formed along a direction perpendicular to the x-axis and parallel to the ground. The z-axis may be formed in a direction perpendicular to the x-axis and y-axis and perpendicular to the ground.

[0174] A structure for preventing such rotational movement and enhancing the coupling stability of the second connector 300 may be required.

[0175] FIG. 31 is an internal close-up view of a connector module according to one embodiment of the present invention.

[0176] 25 and 31, the frame 321 includes a frame 321 body, and may include at least one of a first protruding portion 321-1 and a second protruding portion 321-2 protruding from one side of the frame 321 body.

[0177] The first protruding portion 321-1 may be formed to protrude forward of the body of the frame 321 based on the direction in which the second connector 300 is inserted. That is, the first protruding portion 321-1 may extend from the body of the frame 321 toward the x-axis direction (see FIG. 24) and be inserted into the first connector 200. For example, the first connector 200 may further include a second recessed portion 220b recessed forward of the first recessed portion 220a, and the first protruding portion 321-1 may be inserted into the second recessed portion 220b.

[0178] The second recessed portion 220b may be a portion recessed from the first recessed portion 220a toward the x-axis direction inside the first connector housing 220. In this case, when the second connector 300 is viewed from the side with reference to the direction in which the second connector 300 is inserted, the height of the first recessed portion 220a may be greater than the height of the second recessed portion 220b. That is, when the height of the first recessed portion 220a is E1 and the height of the second recessed portion 220b is E2, the conditional expression E1>E2 may be satisfied. Correspondingly, the height of the first protruding portion 321-1 may be formed to protrude from the frame 321 body so as to be smaller than the height of the frame 321 body when viewed from the side.

[0179] In addition, when the second connector 300 is viewed from the side with reference to the direction in which the second connector 300 is inserted, the second recessed portion 220b can form a first surface 220b-1 extending from the inner upper surface of the first recessed portion 220a, a second surface 220b-2 whose one side is connected to the first surface 220b-1 and forms the front surface, and a third surface 220b-3 whose other side is connected to the second surface 220b-2 and forms the underside.

[0180] The first surface 220b-1 may be an upper surface of the second recessed portion 220b. The second surface 220b-2 may be an innermost surface, i.e., a front surface, of the second recessed portion 220b. The second surface 220b-2 may be perpendicular to the first surface 220b-1. The third surface 220b-3 may constitute a lower surface of the second recessed portion 220b and may be perpendicular to the second surface 220b-2. That is, the first surface 220b-1, the second surface 220b-2, and the third surface 220b-3 may be formed along the outer surface of the first protruding portion 321-1.

[0181] The first recessed portion 220a may include a support surface 220a-1 connected to the third surface 220b-3 and extending downward from the third surface 220b-3. That is, the support surface 220a-1 may be formed on the lower side of the first protruding portion 321-1.

[0182] The first surface 220b-1 can support the upper surface of the first protruding portion 321-1. The second surface 220b-2 can support the front surface of the first protruding portion 321-1. The third surface 220b-3 can support the lower surface of the first protruding portion 321-1. The support surface 220a-1 can support the front surface of the frame 321, i.e., the front surface of the frame 321 main body.

[0183] According to this structure, the first protruding portion 321-1 is engaged with the second recessed portion 220b, thereby restricting the rotational movement of the second connector 300. Specifically, the pitching movement of the second connector 300 about the y-axis may be restricted.

[0184] In order to maximize the prevention of pitching motion, each surface of the first recessed portion 220a and the second recessed portion 220b may satisfy a specific conditional formula. For example, the length F1 of the support surface 220a-1 of the first recessed portion 220a may be 0.4 mm to 0.6 mm. If the length F1 of the support surface 220a-1 of the first recessed portion 220a is less than 0.4 mm, the contact area between the support surface 220a-1 and the front surface of the frame 321 becomes considerably narrow, the support area for pitching prevention decreases, and the pitching motion of the second connector 300 cannot be effectively prevented. On the other hand, if the length F1 of the support surface 220a-1 of the first recessed portion 220a exceeds 0.6 mm, the unnecessary current-carrying area may be increased, and a current-carrying region not intended in the design may be generated.

[0185] Also, the length F2 of the second surface 220b-2 of the second recessed portion may satisfy a specific conditional expression. For example, the length F2 of the second surface 220b-2 may be 0.9 mm to 1.1 mm. If the length F2 of the second surface 220b-2 is less than 0.9 mm, the recess depth of the second recessed portion 220b may be small, and the effect of preventing tilting may be reduced. Conversely, if the length F2 of the second surface 220b-2 exceeds 1.1 mm, the length becomes longer than the thickness of the first protruding portion 321-1, and a problem may occur in which the first protruding portion 321-1 is damaged due to the tilt phenomenon.

[0186] Furthermore, the first protruding portion 321-1 may be formed in a direction extending on both sides of the direction in which the second connector 300 is inserted. That is, the first protruding portion 321-1 may be formed in a direction parallel to the y-axis direction. According to this structure, the shape of the first protruding portion 321-1 may prevent a rolling motion of the second connector 300 when the second connector 300 is inserted and coupled to the first connector 200.

[0187] The second protruding portion 321-2 may be formed to protrude upward or downward from the body of the frame 321 based on the direction in which the second connector 300 is inserted. For example, the second protruding portion 321-2 may be formed to protrude from the lower surface of the body of the frame 321 toward the second conductive part 310. Specifically, the second protruding portion 321-2 may be formed to protrude downward in parallel with the z-axis direction.

[0188] 9, when viewed in a direction in which the second connector 300 is inserted, the first connector 200 further includes a third recessed portion 220c recessed above or below the first recessed portion 220a, and the second protruding portion 321-2 may be inserted into the third recessed portion 220c. That is, the third recessed portion 220c may be formed to extend from the first recessed portion 220a along the z-axis direction.

[0189] When viewed from the direction in which the second connector 300 is inserted, i.e., the x-axis direction, the third recessed portion 220c may be formed on both sides of the first recessed portion 220a. Similarly, the second protruding portion 321-2 may be formed on both sides of the frame 321 to correspond to the third recessed portion 220c.

[0190] Furthermore, the third recessed portion 220c formed on both sides of the lower side of the first recessed portion 220a may have a slanted stepped structure, i.e., when viewed in the x-axis direction, the outermost inner surface of the third recessed portion may have a stepped structure relative to the inner surface of the first recessed portion 220a.

[0191] According to this structure, the second protruding portion 321-2 is inserted into and engaged with the third recessed portion 220c, thereby restricting the rotation of the second connector 300. Specifically, the engagement of the second protruding portion 321-2 can prevent the second connector 300 from yawing. In order to maximize this effect, the second protruding portion 321-2 can extend in a longitudinal direction parallel to the direction in which the second connector 300 is inserted.

[0192] [Theme 7] <Structure for improving fixing force of first conductive part 210 and second conductive part 310> FIG. 32 is an internal cross-sectional view of a connector module according to one embodiment of the present invention.

[0193] 32, the first conductive part 210 may be electrically connected to only a single surface of the second conductive part 310. That is, the first conductive part 210 does not have a structure that envelops the second conductive part 310, but may contact only one surface of the second conductive part 310. For example, the first conductive part 210 may be electrically connected to the second conductive part 310 by contacting a lower surface of the second conductive part 310 while being disposed through the first connector housing 220.

[0194] 25 and 28, the second connector 300 is inserted and coupled to a recessed portion surrounded by the frame 321 and the binding portion 322, and the inner lower surface of the frame 321 is located on the opposite side of the binding portion 322 based on the recessed portion, and the inner lower surface of the frame 321 may support the lower surface of the second conductive part 310. Here, referring to FIG. 13a, a plurality of holes 350-1 may be formed penetrating the inner lower surface. That is, a plurality of holes 350-1 are formed penetrating the space between the comb-shaped structures 350, and the first conductive part 210 may contact the lower surface of the second conductive part 310 through the holes 350-1 formed penetrating.

[0195] According to this structure, the first conductive part 210 is in contact with and electrically connected to only one side of the second conductive part 310, not both sides of the second conductive part 310, thereby reducing the height of the combined structure of the first conductive part 210 and the second conductive part 310, and thus reducing the overall height of the connector module 100. However, a problem may occur in which the contact force between the first conductive part 210 and the second conductive part 310 is weakened, and the connector module 100 may include a structure for preventing the problem of the weakened contact force.

[0196] The binding part 322 contacts the upper surface of the second conductive part 310 and applies pressure to the upper surface of the second conductive part 310, thereby strengthening the contact force between the first conductive part 210 and the second conductive part 310. For example, the front of the binding part 322 is fixedly connected to the upper surface of the frame 321, and the rear of the binding part 322 can move upward or downward. Here, the front of the binding part 322 connected to the upper surface of the frame 321 may include a ring structure that forms an empty space inside. That is, the binding part 322 includes an elastic material and can undergo elastic deformation such that the rear moves upward or downward due to the ring structure.

[0197] Specifically, the binding part 322 may include a contact portion 322-2 that contacts an upper surface of the second conductive part 310. The binding part 322 may also include a binding portion 322-3 that binds to the first connector 200. The binding portion 322-3 may extend rearward based on the insertion direction of the second connector 300 while the front of the binding portion is connected to the front of the contact portion 322-2, and a part of the binding portion 322-3 may be spaced apart from the contact portion 322-2 by a predetermined distance. The binding portion 322-3 may be coupled to or uncoupled from a hole 230 formed through an upper surface of the first connector housing 220, thereby binding or unbinding the second connector 300 to or from the first connector 200.

[0198] More specifically, in a state where the contact portion 322-2 contacts the upper surface of the second conductive part 310 and the front of the binding part 322 is fixed, an external force is applied to the rear upper surface of the binding portion 322-3 using the principle of leverage, so that the rear of the binding portion 322-3 moves downward and becomes closer to the contact portion 322-2. In this process, after the second connector 300 is inserted into the first connector 200, the binding portion 322-3 moves upward again, and a part of the upper surface of the binding portion 322-3 protrudes and fits into the hole 230 formed through the upper surface of the first connector housing 220, so that the second connector 300 can be bound to the first connector 200. A process of releasing the binding between the first connector 200 and the second connector 300 can be performed by the reverse operation. As a result, according to this structure of the binding part 322, the second conductive part 310 can be more firmly fixed by being fitted between the contact portion 322-2 and the first conductive part 210.

[0199] In order to further improve the fixing effect, each portion of the binding portion 322 can satisfy a specific conditional formula.

[0200] For example, the height G1 of the contact portion 322-2 may be 0.6 mm to 1.5 mm when viewed from the side with respect to the direction in which the second connector 300 is inserted and coupled. If the height G1 of the contact portion 322-2 is less than 0.6 mm, the thickness of the contact portion 322-2 becomes too small, and the pressure with which the contact portion 322-2 supports the second conductive part 310 becomes low, so that the function of the contact portion 322-2 to support the second conductive part 310 and strengthen the fixing force of the first conductive part 210 and the second conductive part 310 may be lost. On the other hand, if the height G1 of the contact portion 322-2 exceeds 1.5 mm, there may be a problem that the thickness of the binding part 322 itself becomes large, so that the overall height of the connector module 100 increases, and a problem that the distance between the contact portion 322-2 and the binding part 322-3 becomes too narrow, so that the binding part 322 does not function smoothly.

[0201] In addition, the length G2 of the contact portion 322-2 formed along the direction in which the second connector 300 is inserted and coupled and in contact with the second conductive part 310 may be 1.8 mm to 2.1 mm. If the length G2 of the contact portion 322-2 in contact with the second conductive part 310 is less than 1.8 mm, the contact force between the contact portion 322-2 and the second conductive part 310 may be weakened, and the function of the contact portion 322-2 to strengthen the fixing force of the first conductive part 210 and the second conductive part 310 may be lost. Conversely, if the length G2 of the contact portion 322-2 in contact with the second conductive part 310 exceeds 2.1 mm, the separation space between the bundling part 322 and the second conductive part 310 may be excessively invaded, and the function of the bundling part 322 may be reduced.

[0202] Furthermore, the separation distance G3 between the contact portion 322-2 and the bundling portion 322-3 may be 0.23 mm to 0.27 mm. If the separation distance G3 between the contact portion 322-2 and the bundling portion 322-3 is 0.23 mm or less, a problem may occur in which the function of the bundling part 322 is degraded. Conversely, if the separation distance G3 between the contact portion 322-2 and the bundling portion 322-3 exceeds 0.27 mm, a problem may occur in which the contact portion 322-2 and the bundling portion 322-3 become too thin and are easily damaged by external factors.

[0203] When viewed from the side with respect to the direction in which the second connector 300 is inserted and coupled, the binding part 322 can satisfy the conditional formula of 2.5≦G2 / G1≦3.5. If G2 / G1<2.5, the contact force between the contact part 322-2 and the second conductive part 310 is weakened, and the function of the contact part 322-2 to strengthen the fixing force of the first conductive part 210 and the second conductive part 310 may be lost. On the other hand, if G2 / G1>3.5, the length increases compared to the thickness, and the strength of the contact part 322-2 is weakened, which may cause a problem of easy breakage.

[0204] 31, when the length from the frontmost surface to the rearmost surface of the binding part 322 is G5 and the length from the frontmost surface of the binding part 322 to the rearmost surface of the contact part 322-2 is G4, the conditional formula of 2≦G5 / G4≦2.5 can be satisfied. When G5 / G4 is less than 2, the area of ​​the lower surface of the contact part 322-2 supporting the second conductive part 310 becomes small, and this principle cannot be fully applied to the binding part 322-3, and the function of the binding part 322 may be deteriorated. On the other hand, when G5 / G4 exceeds 2.5, problems such as the binding part 322 occupying excessive space inside the connector module 100 or the binding part 322-3 being engaged with the contact part 322-2 and the separation distance between the binding part 322-3 and the second conductive part 310 not being properly secured may occur.

[0205] Finally, referring to FIG. 31, the rear lower surface of the binding portion 322-3 may include an inclined surface 322-3a so that the binding portion 322-3 can be effectively moved downward to be bound or unbound to the first connector housing 220. Specifically, the inclined surface 322-3a may be formed on the rear lower surface of the binding portion 322-3 so that the distance between the binding portion 322-3 and the second conductive part 310 increases toward the rearmost part of the binding portion 322-3. For example, the inclination angle θ of the inclined surface 322-3a with respect to the extension line of the front lower surface of the binding portion 322-3 may be 5 degrees to 8 degrees. If the inclination angle θ of the inclined surface 322-3a is less than 5 degrees, the separation distance between the rearmost lower surface of the binding portion 322-3 and the second conductive part 310 is not properly secured, and the binding function of the binding part 322 may be deteriorated. Conversely, if the inclination angle θ of the inclined surface 322-3a exceeds 8 degrees, the thickness of the binding portion 322-3 becomes too thin, which may cause a problem of being easily damaged and deformed by an external impact.

[0206] In this case, in order for the bundling part 322 to be spaced apart from the second conductive part to perform the bundling function more effectively, a distance G6 between the rearmost part of the bundling part 322 and the second conductive part may be 0.7 to 0.8 mm. In order to increase the fixing force and contact force between the first conductive part 210 and the second conductive part 310, the fastening housing 400 may further fasten the second conductive part 310 to the second connector housing 320 by a fastening structure. The fastening housing 400 may include a fastening body 410 and a fastening part 420.

[0207] The fastening portion 420 may be connected to one side of the fastening body 410 and coupled to a side of the second connector housing 320. For example, the fastening portion 420 may include a structure that is extended from both sides of the fastening body 410 and wraps around both sides of the second connector housing 320. That is, the fastening portion 420 may be formed along both sides of the frame 321 and coupled to both sides of the frame 321.

[0208] The fastening part 420 may be coupled to a side of the frame 321 through a ring structure 421. Specifically, one side of the fastening part 420 may be connected to the fastening body 410, and the ring structure 421 may be formed at the other end of the fastening part 420. The ring structure 421 of the fastening part 420 may be formed along the side of the frame 321 and fastened to the bottom of the frame 321.

[0209] More specifically, the fastening part 420 includes an inclined surface inclined toward a side surface of the frame 321, and the side surface of the frame 321 may include an inclined surface formed to correspond to the inclined surface of the fastening part 420. The ring structure of the fastening part 420 may be engaged with the side surface of the frame 321 by a sliding manner in which the inclined surface of the fastening part 420 moves along the inclined surface of the side surface of the frame 321. That is, when the second conducting part 310 is inserted into the frame 321, the fastening housing 400 is fastened in a direction perpendicular to the direction in which the second conducting part 310 is inserted, and the fastening housing 400 is fastened so that the inclined surface of the fastening part 420 moves along the inclined surface of the side surface of the frame 321, so that the ring structure 421 of the fastening part 420 may be coupled to the lower side of the side surface of the frame 321.

[0210] As a result, the first conductive part 210 contacts only a single surface of the second conductive part 310, and the fixing force between the first conductive part 210 and the second conductive part 310 is strengthened by the binding part 322 and the fastening housing 400, thereby reducing the overall height of the connector module 100 and allowing the connector module 100 to occupy the space more effectively within the battery module. Specifically, the height H3 of the connector module 100 may be 3.5 mm to 4 mm. That is, the height of the first connector 200 may be 3.5 mm to 4 mm.

[0211] [Theme 8] 33 is a schematic diagram showing a state in which a vision inspection is performed on a connector module 100 using a vision inspection device 1000 according to an embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment.

[0212] <Vision inspection device 1000> The vision inspection device 1000 can perform vision inspection on the connector module 100 transported in a predetermined transport direction via the transport device 1100. For example, the vision inspection device 1000 can be installed at a predetermined position to perform vision inspection above the connector module 100 transported along the transport direction. As a specific example, when the connector module 100 is transported along the transport direction by a conveyor belt, the vision inspection device 1000 can be installed above the conveyor belt to perform vision inspection on the upper part of the connector module 100. The above description is an example and is not limited thereto.

[0213] 34 is a flowchart showing a flow of performing a vision inspection in a connector inspection method according to an embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment.

[0214] <Connector inspection method> According to S100, the connector inspection method may include a connector preparation step.

[0215] The connector preparation step may be a step of preparing the first connector 200 and the second connector 300 that is provided so as to be partially inserted into the internal accommodation space (or insertion space V) of the first connector 200.

[0216] The connector preparation step may include a process of preparing the first connector 200. The process of preparing the first connector 200 may be a process of preparing the first connector 200 including the first conductive part 210 and having at least one hole 230 communicating with an accommodating space formed therein and the outside.

[0217] The connector preparation step may include a process of preparing the second connector 300. The process of preparing the second connector 300 may be a process of preparing the second connector 300, which is provided with a second conductive part 310 that is inserted into the receiving space (or the insertion space V) through the opening 220-1 of the first connector 200 and is electrically connected to the first conductive part 210, and includes a binding part 322 that is provided to be attached to and detachably coupled to at least one hole 230.

[0218] According to S200, the connector inspection method may include a connector mounting step.

[0219] The connector mounting step may be a step of mounting the second connector 300 to the first connector 200.

[0220] The connector mounting step may include a hook mounting process, which may include a hook mounting process of hooking the binding portion 322 into at least one hole 230 so that the first conductive portion 210 and the second conductive portion 310 match.

[0221] According to S300, the connector inspection method may include a reference identification step.

[0222] The reference identification step can be performed in one direction of the first connector 200 and the second connector 300.

[0223] The step of identifying a reference may include identifying a first reference line.

[0224] The process of identifying the first reference line may be a process of identifying, through vision inspection, the first reference line that has a height difference when compared to the surrounding area in the first connector 200 to serve as a reference for vision inspection.

[0225] The reference identifying step can include identifying a second reference line.

[0226] The step of identifying the second reference line may be a step of identifying the second reference line for comparison with the first reference line at the second connector 300 by vision inspection.

[0227] The reference identification step may include performing a vision inspection in a direction transverse to a direction of movement of the attached first connector 200 and second connector 300 during the movement of the attached first connector 200 and second connector 300 .

[0228] According to S400, the connector inspection method may include an assembly distance determination step.

[0229] The assembly distance determination step may be a step of determining whether an assembly distance D from the first reference line to the second reference line is within a critical distance range. Critical distance range data, which is a criterion for determining whether the assembly distance D is within the critical distance range, may be predefined.

[0230] The assembly distance determination step may include comparing the identified assembly distance D with pre-stored critical distance range data.

[0231] According to S500, the connector inspection method may include a step of determining whether the connector is normally attached or not.

[0232] The normal installation possibility determining step may be a step of determining that the assembly has been normally installed when it is determined that the assembly distance D is within a predetermined distance range.

[0233] The connector inspection method may further include a notification providing step.

[0234] The notification providing step may be a step of providing a notification of information regarding normal or abnormal installation to a user via a user interface after the normal installation determination step.

[0235] According to the above-mentioned connector inspection method, it is possible to determine whether a connector is normally installed. As a result, it is possible to quickly determine whether a connector or a connector module is normally installed during an automated assembly (or installation) process without error through vision inspection.

[0236] 35 is a perspective view showing a connector module 100 that is a target of vision inspection according to an embodiment of the present invention. The description of the above embodiment can be applied in the same or similar manner to this embodiment.

[0237] The connector module 100 may include a first connector 200. The first connector 200 may include a first conductive part 210 and at least one hole 230 that communicates an internal receiving space V (or an insertion space) with the outside.

[0238] The first connector 200 may be provided with a first reference line. The first reference line may have a height difference when compared with the surrounding area to serve as a reference for vision inspection. For example, the first reference line may be an edge of a reference recessed area 220-2-1 formed by recessing a part of the outer edge of the first connector 200. As another example, the first reference line may be an edge of the first connector 200.

[0239] The connector module 100 may include a second connector 300. The second connector 300 may include a second conductive part 310 that is inserted into the receiving space V (or the insertion space) through the opening 220-1 of the first connector 200 and is electrically connected to the first conductive part 210. The second connector 300 may be provided to be attachable to and detachable from the first connector 200 by engaging the binding part 322 of the second connector 300 with at least one hole 230 of the first connector 200.

[0240] The second connector 300 may include a second reference line, which may be a line for comparison with the first reference line when performing a vision inspection.

[0241] An embodiment relating to the first reference line and the second reference line will be described later.

[0242] 36 is a plan view showing reference lines S1 and S2 according to an embodiment of the present invention. The description of the above embodiment can be applied equally or similarly to this embodiment.

[0243] A reference recessed area 220-2-1 may be formed in the first connector 200. The reference recessed area 220-2-1 may be formed by recessing a part of the outer edge of the first connector 200 (or the first connector housing 220). The reference recessed area 220-2-1 may be a rectangular recessed area. The reference recessed area 220-2-1 may be an area formed adjacent to an edge of the first connector 200 on the side opposite to the side where the second connector 300 is inserted.

[0244] The first reference line S1 may be a line parallel to the edge of the reference recess area 220-2-1 on the side where the second connector 300 is inserted.

[0245] The second reference line S2 may be an edge portion of the second connector 300 that is parallel to the first reference line S1. Specifically, the second reference line S2 may be an edge portion of the second connector 300 that faces an edge portion of the first connector 200.

[0246] The assembly distance D may be the distance between the first reference line S1 and the second reference line S2.

[0247] 37 is a plan view showing reference lines S1-1 and S2-1 according to an embodiment of the present invention. The description of the above embodiment may be applied in the same or similar manner to this embodiment.

[0248] The first reference line S1-1 may be an edge of the at least one hole 230 opposite to the opening 220-1.

[0249] The second reference line S2-1 may be an edge portion of the second connector 300 that is parallel to the first reference line S1-1. Specifically, the second reference line S2-1 may be an edge portion of the second connector 300 that faces an edge portion of the first connector 200.

[0250] The assembly distance D1 may be the distance between the first reference line S1-1 and the second reference line S2-1.

[0251] 38 is a plan view showing reference lines S1-2 and S2-2 according to an embodiment of the present invention. The description of the above embodiment may be applied in the same or similar manner to this embodiment.

[0252] The first reference line S1-2 may be an edge of the first connector 200 opposite to the side where the second connector 300 is inserted.

[0253] The second reference line S2-2 may be an edge portion of the second connector 300 that is parallel to the first reference line S1-2. Specifically, the second reference line S2-2 may be an edge portion of the second connector 300 that faces an edge portion of the first connector 200.

[0254] The assembly distance D2 may be the distance between the first reference line S1-2 and the second reference line S2-2.

[0255] 39 is a plan view showing reference lines S1-3 and S2-3 according to an embodiment of the present invention. The description of the above embodiment can be applied equally or similarly to this embodiment.

[0256] The first reference line S1-3 may be an edge of the at least one hole 230 opposite to the opening 220-1.

[0257] The second reference line S2-3 may be an edge portion of the second connector 300 that is parallel to the first reference line S1-3. Specifically, the second reference line S2-3 may be an edge portion of the second connector 300 that faces an edge portion of the first connector 200.

[0258] The assembly distance D3 may be the distance between the first reference line S1-3 and the second reference line S2-3.

[0259] 40 is a plan view showing reference lines S1-4 and S2-4 according to an embodiment of the present invention. The description of the above embodiment may be applied in the same or similar manner to this embodiment.

[0260] The first reference line S1-4 may be an edge of the at least one hole 230 opposite to the opening 220-1.

[0261] The second reference line S2-4 may be an edge portion parallel to the first reference line S1-4 among the edges of the second connector 300. Specifically, the second reference line S2-4 may be an edge portion of the second connector 300 on the opposite side to the opening 220-1 side.

[0262] The assembly distance D4 may be the distance between the first reference line S1-4 and the second reference line S2-4.

[0263] The above-mentioned embodiments regarding the first reference lines S1, S1-1, S1-2, S1-3, S1-4 and the second reference lines S2, S2-1, S2-2, S2-3, S2-4 are merely exemplary, and the first and second reference lines for determining the assembly distance can be designed in various ways.

[0264] Although the present invention has been described above using limited embodiments and drawings, the present invention is not limited thereto, and various implementations are possible within the technical spirit of the present invention and the equivalent scope of the claims described below by a person having ordinary knowledge in the technical field to which the present invention belongs. [Explanation of symbols]

[0265] 1 Battery module 2. Multiple batteries 3 Cases 3-1 Upper case 3-2 Side case 3-3 Lower case 10. Control Unit 11 Control PCB 12 Control unit cover 12-1 Cover recess 13 PCB Frame 100 Connector Module 200 1st Connector 210 First Conductive Section 220 1st connector housing 220-1 Aperture 220-2 Upper part 220-3 Side 220-4 Lower part 220-2-1 Reference recess area 220a First recessed portion 220b Second recessed portion 220c Third recess 221 Ridge 222 Body 223 Bulkhead 224 Depression Line 225 Protruding rib 226 Internal Rib 230 holes 300 2nd Connector 310 Second Conduction Section 311 Conductive Film 312 First Folding Section 313 Second Folding Section 320 2nd connector housing 321 Frames 321-1 1st protruding part 321-2 Second protruding part 322 Binding section 322-1 Protruding part of the binding part 322-2 Contact part 322-3 Binding part 340 Open Section 350 Comb structure 360 Comb-shaped base 400 Fastening Housing 410 Fastening body 411 First fastening body 412 Second Fastening Body 410a First surface of fastener body 410b Second surface of fastening body 410c Third surface of fastening body 420 Fastening Part 430 Fastening pin 1000 Vision Inspection Equipment 1100 Transfer device V Insertion Space DI insertion direction

Claims

1. a first connector including a first connector housing having a first recessed portion formed by being recessed inward and a first conductive portion coupled to the first connector housing; a second connector that mates with the first connector, The second connector is a second connector housing at least a portion of which is inserted into and coupled with the first recessed portion; a second conductive part inserted into the second connector housing and electrically connected to the first conductive part; a fastening housing that passes through the second connector housing and the second conductive portion to fasten the second connector housing and the second conductive portion together.

2. The fastening housing includes: a fastening body located on one side of the second connector housing; The connector module according to claim 1 , further comprising: a fastening pin protruding from the fastening body and penetrating the second connector housing and the second conductive portion.

3. The second connector housing includes a first fastening hole formed therethrough, and the second conductive part includes a second fastening hole formed therethrough, The connector module according to claim 2 , wherein the first fastening hole and the second fastening hole are formed on the same line when the second conductive portion is inserted and coupled to the second connector housing.

4. The connector module according to claim 3 , wherein the fastening pin is disposed so as to penetrate integrally through the first fastening hole and the second fastening hole when the second conductive portion is inserted and coupled to the second connector housing.

5. The connector module according to claim 4 , wherein the fastening pin restricts the second conductive portion from coming off the second connector housing.

6. The connector module of claim 5 , wherein the fastening pin secures the second conductive portion to the second connector housing so as to limit movement of the second conductive portion in a direction parallel to a direction in which the second conductive portion is inserted into the second connector housing.

7. The connector module of claim 4 , wherein the contact area of ​​the first conductive portion and the second conductive portion remains constant.

8. The connector module according to claim 2 , wherein a direction in which the second conductive portion is inserted into the second connector housing and a direction in which the fastening pin penetrates are perpendicular to each other.

9. The fastening housing includes: The connector module according to claim 2 , further comprising fastening portions extending from both sides of the fastening body and coupled to side surfaces of the second connector housing.

10. The connector module according to claim 9 , wherein the fastening portion is coupled to a side surface of the second connector housing by a ring structure.

11. the fastening portion includes an inclined surface inclined toward a side surface of the second connector housing, the side surface of the second connector housing includes an inclined surface formed to correspond to the inclined surface of the fastening portion, The connector module according to claim 10, wherein the ring structure of the fastening portion is engaged with the side surface of the second connector housing by a sliding mechanism in which the inclined surface of the fastening portion moves along the inclined surface of the side surface of the second connector housing.

12. The connector module of claim 2, wherein the fastening body is formed to protrude toward the second conductive portion to form a portion that contacts the second conductive portion, and the fastening pin is formed to protrude from the protruding portion of the fastening body.

13. The connector module according to claim 2 , wherein the end portion of the fastening pin comprises at least one of a curved shape and a horn shape.

14. The connector module according to claim 1 , wherein a direction in which the second conductive portion is inserted into the second connector housing and a direction in which the fastening housing is fastened to the second connector housing are perpendicular to each other.

15. A case forming an internal storage space; A plurality of battery cells accommodated in the accommodation space; a control unit that senses electrical signals of the plurality of battery cells and electrically controls the plurality of battery cells; A battery module comprising: the connector module according to claim 1 , electrically connecting the plurality of battery cells and the control unit.

16. The fastening housing includes: a fastening body located on one side of the second connector housing; The battery module of claim 15 , further comprising: a fastening pin protruding from the fastening body and penetrating the second connector housing and the second conductive portion.

17. The battery module according to claim 16 , wherein the fastening pin restricts the second conductive portion from being detached from the second connector housing.

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