Connector module and battery module including the same

Abstract

The connector module according to an embodiment of the present invention includes a first connector forming a first recessed portion formed to be recessed, and a second connector inserted and coupled to the first recessed portion. The second connector includes a second connector housing including a frame inserted and coupled to the first recessed portion and a bundling portion coupled to one surface of the frame and coupled to the first connector, and a second conductive portion inserted and coupled to the frame and electrically connected to the first connector. Based on the direction in which the second connector is inserted, the frame may include a first protruding portion protruding forward. Based on the direction in which the second connector is inserted, the frame may include a second protruding portion protruding upward or downward.

Description

Technical Field

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2022-0100970 filed on August 11, 2022 and Korean Patent Application No. 10-2022-0162088 filed on November 28, 2022, and all of the contents disclosed in the documents of the Korean patent applications are incorporated herein by reference in their entirety.

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

Background Art

[0003] In order to solve environmental pollution caused by the use of petroleum resources and the problem of energy source shortage due to the depletion of petroleum resources, research and development on power generation based on environmentally friendly energy sources have been conducted. In particular, research on secondary batteries that can be repeatedly charged and discharged and have high utilization has been actively carried out, and research has been conducted on various aspects such as materials, structures, processes, and stability of secondary batteries.

[0004] In terms of the structure of secondary batteries, in order to increase the energy density, research and development on miniaturization and integration of related structures have been actively carried out. In particular, as the capacity of the battery and the number of batteries mounted in the battery pack / battery module increase, the internal space of the battery pack / battery module becomes very narrow. Therefore, it is important to develop a structure that effectively arranges the batteries in a limited space and electrically connects the outside of the battery pack / battery module to the batteries.

[0005] According to the prior art, the internal components of the battery pack / battery module were connected by a soldering method, but the soldering method had problems such as the occurrence of cracks or a decrease in manufacturing yield. Also, according to the prior art, when miniaturizing the internal components of the battery pack / battery module, there was a possibility of damage or poor fastening due to mechanical vibration / impact.

Summary of the Invention

Problems to be Solved by the Invention

[0006] One problem to be solved by the present invention is to provide a connector module that occupies less internal space of a battery module by reducing height and overall volume.

[0007] One problem to be solved by the present invention is to provide a connector module that is easy to mount and dismount even in a limited space due to miniaturization, and can prevent damage and defects caused by mechanical vibration and shock, and a battery module including the connector module.

[0008] One problem to be solved by the present invention is to provide a connector module that ensures structural stability by increasing the bonding force between components through an anti-tilt and anti-disconnection structure, and a battery module including the connector module.

Means for Solving the Problems

[0009] A connector module according to an embodiment of the present invention includes a first connector forming a first recessed portion formed in a recessed manner, and a second connector inserted and coupled to the first recessed portion. The second connector includes a frame inserted and coupled to the first recessed portion and a second connector housing including a bundling portion coupled to the first connector and connected to one surface of the frame, and a second conductive portion inserted and coupled to the frame and electrically connected to the first connector. Based on the direction in which the second connector is inserted, the frame may include a first protruding portion protruding forward. Based on the direction in which the second connector is inserted, the frame may include a second protruding portion protruding from above or below.

Advantages of the Invention

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

[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 due to mechanical vibration and impact can be prevented.

[0013] According to a preferred embodiment of the present invention, the coupling force between the components of the connector module and the battery module can be increased by the anti-tilt and anti-disengagement structures.

[0014] In addition, effects that can be easily predicted by those skilled in the art from the configuration according to the preferred embodiment of the present invention can be included.

Brief Description of the Drawings

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Mode for Carrying Out the Invention

[0016] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention pertains can easily implement it. However, the present invention can be realized in various different forms and is not limited or restricted by the following embodiments.

[0017] In order to clearly explain the present invention, detailed descriptions of parts not related to the explanation or known techniques related to the relevant art that may obscure the gist of the present invention are omitted. When attaching reference numerals to the components of each drawing in this specification, the same or similar reference numerals are attached to the same or similar components throughout the specification.

[0018] Also, the terms and words used in this specification and the claims should not be construed as being limited to their ordinary or dictionary meanings. The inventors should interpret them according to the principle that they can appropriately define the concept of the terms in order to explain their invention in the best way, and should interpret them in a meaning and concept consistent with the technical idea of the present invention.

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

[0020] <Structure of Battery Module 1> Referring to FIG. 1 for description, the battery module 1 can include a plurality of batteries (e.g., a plurality of batteries 2 in FIG. 3). For example, the plurality of batteries 2 can be secondary batteries capable of repeated charging and discharging. The plurality of batteries 2 can be in a state of being regularly arranged with a predetermined pattern, but is not limited thereto. The plurality of batteries 2 can be electrically connected to the outside of the battery module 1.

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

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

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

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

[0026] The battery module 1 can include a control unit 10. For example, the control unit 10 can be mounted on the battery case 3. Specifically, for example, the control unit 10 can be mounted on the upper case 3-1. The control unit 10 can be provided to be wirelessly communicable with an external control device.

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

[0028] The control unit 10 can include a control PCB 11. For example, the control PCB 11 can be electrically connected to a plurality of batteries 2 via the connector module 100. The control PCB 11 can be provided to be wirelessly communicable with an external control device. The control PCB 11 can be attached to the battery case 3 (or the upper case 3-1). Being mounted 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 can be a frame for mounting the control PCB 11. The control PCB 11 can be mounted on the upper case 3-1 via the PCB frame 13. Specifically, the control PCB 11 can be mounted on the PCB frame 13, and the PCB frame 13 can be mounted on the upper case 3-1. In other words, the PCB frame 13 can be arranged in a PCB mounting area formed concavely or recessed in the upper case 3-1. In this case, the PCB frame 13 can be visually recognized from the outside with the control unit cover 12 not mounted. However, it may not be limited to this.

[0030] The control unit 10 can include the control unit cover 12. For example, the control unit cover 12 can cover the control PCB 11. The control unit cover 12 can be attached to the battery case 3 (or the upper case 3-1). By covering the upper part of the control PCB 11, the control unit cover 12 can protect the control PCB 11 from external impacts on the control unit 10.

[0031] Referring to FIG. 2, the control unit 10 can 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 can 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 can be 22752 mm^2. In this case, the area of the region where the control unit 10 is mounted can be about 18% of the area of the upper case 3-1. However, the above numerical values are examples and may not be limited to this. 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, a limited space can be effectively utilized.

[0032] Referring to FIGS. 3 and 4 for description, the connector module 100 can be mounted on the control PCB 11. For example, the connector module 100 can be mounted on the control PCB 11. The connector module 100 can 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, it may not be limited to this.

[0033] The connector module 100 can include a plurality of connector modules (e.g., 101, 102). For example, the connector module 100 can include the first connector module 101. The first connector module 101 extends toward one side of the battery case 3 and can be connected to the first electrodes of the plurality of batteries 2. The connector module 100 can include the second connector module 102. The second connector module 102 extends toward the other side of the battery case 3 and can be connected to the second electrodes having polarities different from those of the first electrodes of the plurality of batteries 2. By the connector module 100 including the plurality of connector modules 101 and 102, the electrodes having different polarities of the plurality of batteries 2 can be effectively connected. However, it is not limited to the above, and the connector module 100 can also be formed as one module. For example, one connector module 100 extends toward the other side of the battery case 3 and can be connected to the electrodes having different polarities of the plurality of batteries 2.

[0034] The first connector module 101 and the second connector module 102 can be arranged separately. For example, each of the first connector module 101 and the second connector module 102 can be mounted on the control PCB 11, but can be arranged separately with a predetermined interval. The predetermined interval at which the first connector module 101 and the second connector module 102 are arranged separately may not be particularly limited. In other words, the separable range in which the first connector module 101 and the second connector module 102 can be mounted on the control PCB 11 can be a range in which the first connector module 101 and the second connector module 102 do not overlap so as not to cause misassembly. However, the above numerical range is an example and may not be limited thereto.

[0035] Each of the first connector module 101 and the second connector module 102 can extend in opposite directions to each other. For example, each of the first connector module 101 and the second connector module 102 can include a conductive portion, and each conductive portion can be connected to electrodes having different polarities from each other. Each of the conductive portions can correspond to the second conductive portion 310 described later. By arranging the first connector module 101 and the second connector module 102 separately, the length of the conductive portion (e.g., the second conductive portion 310) described later that extends for electrical connection can be effectively reduced in proportion to the degree of separation. According to the above, the conductive portion has been described as being included in the connector module, but the conductive portion can be an FFC connected to the connector module and may be described and understood as another configuration.

[0036] The connector module 100 can include a first connector 200 and a second connector 300. For example, the first connector 200 can be mounted (or coupled) to be electrically connected to the control unit 10 (or the control PCB 11). The second connector 300 can be mounted to and detached from the first connector 200. Specifically, for example, the second connector 300 can 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 can include the first connector 200 and the second connector 300.

[0037] FIG. 5 is an exploded perspective view showing the connector module 100 disassembled according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner.

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

[0039] Referring to FIG. 5, the first connector 200 can include a first conductive portion 210. For example, the first conductive portion 210 can be electrically connected to the control unit 10. More specifically, the first conductive portion 210 can be electrically connected to the control PCB 11.

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

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

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

[0043] According to the above, although the second conductive part 310 is described as being included in the second connector 300, the second conductive part 310 can be an FFCC connected to the second connector 300 and can be described and understood as another configuration.

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

[0045] According to the above, although the conductive film 311 is described as being included in the second connector 300, the conductive film 311 can be described and understood as another configuration.

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

[0047] The second connector 300 can include a binding portion 322. The binding portion 322 can be provided in the second connector housing 320 so as to be rotatable to a certain degree. For example, the binding portion 322 can be rotated in a direction closer to or farther from the second connector housing 320 during the process of being inserted into the first connector 200. In other words, the binding portion 322 can be rotated so as to include a section where a difference in height at the end of the binding portion 322 occurs during the process of being inserted into the first connector 200. The binding portion 322 (or the end of the binding portion 322) can bind the first connector 200 and the second connector 300 by passing through the hole 230 of the first connector 200 and binding to the first connector housing 220.

[0048] The connector module 100 can include a fastening housing 400. The fastening housing 400 can limit the movement of the second conductive portion 310 relative to the second connector housing 320. By limiting the movement of the second conductive portion 310, the fastening housing 400 can stably maintain the electrical contact between the first conductive portion 210 and the second conductive portion 310.

[0049] FIG. 6 is a longitudinal sectional view showing a cross section of the state where the connector module 100 is mounted on the control unit 10 according to an embodiment of the present invention, and FIG. 7 is a longitudinal sectional view showing a cross section of the control unit cover 12 according to an embodiment of the present invention. The descriptions regarding the above-described embodiments can also be applied identically or similarly to this embodiment. Hereinafter, it will be described with reference to FIGS. 6 and 7.

[0050] <Structure of the control unit 10> The control PCB 11 can be disposed on a PCB frame 13 which is disposed in a concave or recessed PCB mounting region in the upper case 3-1. The control PCB 11 can include a region where the connector module 100 is disposed and a region where the connector module 100 is not disposed. The region where the connector module 100 is not disposed can be a region other than the region where the connector module 100 is disposed among the regions of the control PCB 11.

[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 be arranged to cover the control PCB 11 on the battery case 3 (or the upper case 3-1), thereby defining an accommodation space for accommodating the connector module 100. As another example, the control unit cover 12 can be attached to the battery case 3 (or the upper case 3-1) to cover the upper part of the connector module 100.

[0052] In a region 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 (e.g., 3.92 mm).

[0053] The control unit cover 12 can include a cover recess 12-1. The cover recess 12-1 can be formed by the region of the control unit cover 12 facing the connector module 100 being recessed to a predetermined extent. Specifically, for example, in the region where the connector module 100 is arranged, the height from the control PCB 11 to the control unit cover 12 (or the height H2 of the cover recess 12-1) can be 5 mm or less.

[0054] The region of the cover recess 12-1 facing the connector module 100 can include a bent region. For example, the region facing the connector module 100 can be formed with a gently inclined region, so that even when the connector module 100 collides or contacts, damage to the connector module 100 and the control unit cover 12 can be minimized.

[0055] The predetermined degree (or height) H4 of the depression of the cover recess 12-1 can be 2 / 3 or more of the thickness of the remaining non-depressed part. For example, the thickness of the cover recess 12-1 of the control unit cover 12 can be 0.5 mm, and the thickness of the remaining part can be 1.5 mm.

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

[0057] In this case, the predetermined degree of depression (H4) can be 1 mm.

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

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

[0060] As described above, by providing the cover recess 12-1 in the control unit cover 12, it is possible to prevent the height of the control unit cover 12 itself from increasing due to the connector module 100, and effectively reduce the size. Further, by forming the thickness of the remaining region in 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, the overall rigidity of the control unit cover 12 can be effectively reinforced.

[0061] FIG. 8 is a perspective view showing the arrangement of the second conductive portion 310 according to an embodiment of the present invention. The description regarding the above-described embodiment can also be applied identically or similarly to this embodiment.

[0062] <Structure of the second conductive portion 310> The second connector 300 can include the second conductive portion 310. Although the second conductive portion 310 has been described as being included in the second connector 300, the second conductive portion 310 is an FFC connected to the second connector 300 and may be described and understood as another configuration.

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

[0064] The second conductive part 310 can include portions 312 and 313 that are folded during extension. For example, the second conductive part 310 can include a first folding part 312 and a second folding part 313 during extension. Specifically described, the second conductive part 310 can be an FFC, and electrical connection can be maintained even when it is folded. Thereby, spatial efficiency can be maximized by folding the second conductive part 310 during extension, and it can be effectively connected to a plurality of batteries 2. Also, by structurally adapting the folding of the second conductive part 310 in various paths, an electrical connection path can be effectively realized.

[0065] FFC (flexible flat cable) is coupled as a cable (e.g., a strip cable) via a connector housing, FPC (flexible printed circuit) is a printed circuit in a printed manner, and FFC can be larger in height than FPC. However, according to the above-described embodiment, the connector module 100 maximizes spatial efficiency by being formed to have a height of 4 mm or less.

[0066] [Theme 2] FIG. 9 is a perspective view showing the first connector 200 according to an embodiment of the present invention as viewed from one direction, and FIG. 10 is a perspective view showing the first connector 200 according to an embodiment of the present invention as viewed from another direction. The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner. Hereinafter, description will be made with reference to FIGS. 9 and 10.

[0067] <Reinforcement structure of the first connector 200> The first connector 200 can include a raised portion 221. For example, the raised portion 221 can be formed to protrude from the inner bottom surface of the first connector housing 220. Also, the first conductive part 210 can be mounted on the raised portion 221.

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

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

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

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

[0072] By forming the raised portion 221 including the body portion 222 and the partition wall 223 which are the reinforcing structure on the first connector 200, it is possible to effectively prevent the partition wall 223 from being damaged or broken due to 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 complemented, whereby the partition wall is not easily broken and can maintain its shape firmly.

[0073] FIG. 11 is a perspective view showing the recessed line 224 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied identically or similarly to this embodiment.

[0074] <Recessed line 224> The body portion 222 can include the recessed line 224. For example, the recessed line 224 can be formed by being recessed in the body portion 222.

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

[0076] The recessed line 224 can extend away from the partition wall 223 to the opening side 220-1. For example, the recessed line 224 can be separated from the partition wall 223 along a direction parallel to the direction in which the second connector 300 is inserted, and can extend along a direction parallel to the direction in which the second connector 300 is inserted to the opening side 220-1.

[0077] The recessed line 224 can be provided so that the comb-shaped structure 350 described later is guided. For example, the recessed line 224 can be in a form corresponding to the comb-shaped structure 350. The recessed line 224 can be formed by being recessed in the body portion 222 so that the comb-shaped structure 350 can be guided during insertion.

[0078] When the recessed line 224 is provided in 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 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.

[0079] The recessed line 224 can be provided such that a part of the comb-shaped structure 350 is mounted when the comb-shaped structure 350 is inserted into the partition wall 223. For example, when the end of the comb-shaped structure 350 is inserted and mounted between the partition walls 223, the portion on the comb-shaped base portion 360 side of the comb-shaped structure 350 can be mounted on the recessed line 224. By mounting a part of the comb-shaped structure 350 on the recessed line 224, it is possible to further prevent vibration due to vibration or impact when the first connector 200 and the second connector 300 are coupled, and thereby, the electrical connection can be stably maintained.

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

[0081] The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner. Hereinafter, it will be described with reference to FIGS. 12, 13a, and 13b.

[0082] <Open portion 340> An open portion 340 can be formed in the second connector 300. For example, the open portion 340 can be a space provided so that the partition wall 223 is positioned when the first connector 200 and the second connector 300 are coupled. Specifically, for example, the open portion 340 can mean a space between a protruding portion 321-2 and a comb-shaped structure 350, which will be described later. Further, the open portion 340 can mean a space between the comb-shaped structures 350. When the first connector 200 and the second connector 300 are coupled, the partition wall 223 can be inserted into the space between the protruding portion 321-2 and the comb-shaped structure 350 or the space between the comb-shaped structures 350.

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

[0084] The second connector 300 can include a comb-shaped structure 350. For example, the comb-shaped structure 350 can protrude from the comb-shaped base portion 360 toward the first connector 200 side. As another example, the comb-shaped structure 350 can be in a form corresponding to the raised portion 221 of the first connector 200.

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

[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 that is inserted into the first connector 200 to the length of the comb-shaped structure 350 can 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-shaped structure 350 can be in the range of 2 mm to 4 mm, and the length of the portion of the second connector 300 that is inserted into the first connector 200 can be in the range of 4 mm to 6 mm. Specifically, when the length of the comb-shaped 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 that is inserted into the first connector 200 to the length of the comb-shaped structure 350 can be 3. Also, when the length of the comb-shaped 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 that is inserted into the first connector 200 to the length of the comb-shaped structure 350 can be 1. However, it may not be limited to the above.

[0087] The second connector 300 can include a protruding portion 321-2. For example, the protruding portion 321-2 can protrude from both ends of the second connector housing 320 so as to wrap around both sides of the raised portion 221 when the second connector 300 is inserted into the first connector 200. Also, the protruding portion 321-2 can 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 can protrude from the second connector housing 320 so as to face the inner bottom surface when the second connector 300 is inserted into the first connector 200. By providing the protruding portion 321-2 so as to wrap around the raised portion 221 of the first connector 200, the insertion of the second connector 300 can be guided. Also, by guiding the second connector 300, damage and breakage of the partition wall 223 can be prevented, and a short circuit of the connection terminals of the first conductive portion 210 can be prevented.

[0088] FIG. 14 is a plan view showing a state in which a first connector 200 and a second connector 300 according to an embodiment of the present invention are coupled, FIG. 15 is a longitudinal sectional view showing a cross section taken along line B-B 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 longitudinal sectional view showing a cross section taken along line C-C 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 description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner. Hereinafter, description will be made with reference to FIGS. 14 to 16.

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

[0090] The fastening housing 400 can limit the movement of the second conductive portion 310. For example, the fastening housing 400 can be mounted on the second connector housing 320 so as to limit the movement of the second conductive portion 310.

[0091] Referring to the cross section taken along line B-B, the comb-shaped structure 350 can be inserted between the partition walls 223. For example, the comb-shaped structure 350 can be provided so as to fit into the space between the partition walls 223 when the second connector 300 is inserted and mounted on the first connector 200. In other words, the comb-shaped structure 350 and the partition walls 223 can have corresponding structures that can be inserted and coupled to each other.

[0092] Referring to the cross-section along the C-C line, the comb-shaped base portion 360 can be aligned with the body portion 222. For example, the comb-shaped base portion 360 can be provided so as 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-shaped base portion 360 and the body portion 222 can have corresponding structures so as to align when facing each other.

[0093] [Theme 3] FIG. 17 is a plan view showing the first connector 200 according to an embodiment of the present invention as viewed from above, and FIG. 18 is a longitudinal sectional view showing a cross-section of the first connector 200 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner. Hereinafter, description will be made with reference to FIGS. 17 and 18.

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

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

[0096] A first conduction portion 21 can be provided in the lower portion 220-4 so as to be electrically connected to the second connector 300.

[0097] A hole 230 can be formed through the upper portion 220-2 in the first connector housing 220 so that the second connector 300 can be hooked and coupled.

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

[0099] FIG. 19 is a plan view showing the protruding rib 225 of the first connector 200 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied equally or similarly to this embodiment.

[0100] <Structure of the protruding rib 225> The edge of the upper part 220-2 on the opening 220-1 side can include the protruding rib 225. For example, the upper part 220-2 can include the protruding rib 225 that protrudes in the 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 can 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 can be in the range of 0.4 mm to 0.5 mm. In this case, the distance A can be in the range of 1.2 mm to 2.0 mm.

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

[0103] By forming the protruding rib 225 on the first connector housing 220, the rigidity of the upper part 220-2 where the hole 230 is formed can be reinforced. For example, even when an external force acts, since the pressure is dispersed in proportion to the protruding degree of the protruding rib 225, the occurrence of cracks or breakage in the upper part 220-2 can be prevented.

[0104] The crack in the upper part 220-2 can occur in a diagonal (slanting) direction with respect to the edge where the protruding rib 225 is formed. By forming the protruding rib 225 to protrude, the length g in the diagonal direction also extends, so that the strength in the diagonal direction can be reinforced.

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

[0106] <Structure of Hole 230> A hole 230 can be formed in the first connector housing 220. For example, the hole 230 can include a round shape at the edge on the opening 220-1 side. The round shape formed in the hole 230 can be formed such that the fillet radius value R is 0.3 mm to 1 mm.

[0107] The hole 230 can include a plurality of holes. For example, the plurality of holes can be formed along a direction parallel to the edge on the opening 220-1 side of the upper part 220-2. The protruding rib 225 can 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, the occurrence of cracks or breakage in the upper part (220-1) where the plurality of holes are formed can be effectively prevented. Even when an external force acts, since the pressure is dispersed in proportion to the extent to which the protruding rib 225 extends, the occurrence of cracks or breakage in the upper part 220-2 can be prevented.

[0109] FIG. 21 is a perspective view showing the internal rib 226 according to an embodiment of the present invention, and FIG. 22 is a front view showing the internal rib 226 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied identically or similarly to this embodiment. Hereinafter, description will be made with reference to FIGS. 21 and 22.

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

[0111] The internal rib 226 can not interfere with the insertion of the second connector 300 into the insertion space V. For example, the internal rib 226 can be formed in a region other than the insertion path toward the insertion space V of the second connector 300. As another example, the surface of the second connector housing 320 facing the surface of the upper part 220-2 of the first connector housing 220 where the internal rib 226 is formed can be formed with a corresponding structure.

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

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

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

[0115] The internal rib 226 can reinforce the rigidity of the thin thickness T of the upper part 220-2. Further, the internal rib 226 can reinforce the rigidity of the upper part 220-2 in which the hole 230 is formed.

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

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

[0118] The protruding rib 225 and the internal rib 226 can include an overlapping region. For example, the protruding rib 225 and the internal rib 226 can include an overlapping region along the edge when looking at the opening 220-1 side in the direction DI in which the second connector 300 is inserted.

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

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

[0121] The degree to which the central rib among the three internal ribs protrudes toward the insertion space can be greater than the degree to which the outer ribs protrude toward the insertion space. The central rib can have a high possibility of contact when viewed from the insertion path when the second connector 300 is inserted into the insertion space. By having the central rib protrude more than the outer ribs, the strength can be reinforced, and damage due to contact can be prevented. Also, when the second connector 300 is inserted, it can perform a guiding function. The central rib may extend to the region where the protruding rib 225 protrudes. In other words, the central rib can further extend toward the opening 220-1 side than the outer ribs. The width and protruding degree of the above-described internal ribs can have various embodiments according to the number, position, and size of the holes 230.

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

[0123] [Theme 4] <Anti-removal structure of the fastening housing 400> FIG. 24 is a perspective view showing a second connector according to an embodiment of the present invention.

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

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

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

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

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

[0129] The second connector 300 can include a second connector housing 320, a second conductive part 310, and a fastening housing 400.

[0130] The second connector housing 320 forms the appearance 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 to be integrally coupled to the first connector 200.

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

[0132] The frame 321 can be inserted 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 is connected to one surface of the frame 321 and can be coupled to the first connector 200. For example, the binding part 322 can be connected to the upper surface of the frame 321. The binding part 322 can be coupled to the first connector 200 by being coupled to the inner upper surface of the first connector housing 220 in a state of being connected to the upper surface of the frame 321.

[0134] In this case, the binding part 322 can be coupled to the first connector 200 by a hook connection. For example, the binding part 322 can include a lever form. Specifically, there is a portion formed through the upper surface of the first connector housing 220, that is, a hole 230, such that the upper surface of the first connector housing 220 and the first recessed portion 220a communicate with each other, and the binding part 322 can be coupled to the penetrated portion of the upper surface of the first connector housing 220.

[0135] More specifically, with respect to the direction in which the second connector 300 is inserted into the first connector 200, the front of the binding part 322 is connected to the frame 321, and the rear of the binding part 322 is movable in the upper or lower direction.

[0136] With the end portion 322 separated from the second conductive portion 310 by a predetermined distance, the second connector 300 is inserted and coupled to the first connector 200. After the end portion 322 moves downward and then upward, it is coupled to the penetrated portion on the upper surface of the first connector housing 220, so that the first connector 200 and the second connector 300 can be bound to each other by the end portion 322. In this case, the end portion 322 can also be separated from the second conductive portion 310 by a predetermined distance.

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

[0138] FIG. 25 is, for example, an enlarged view of the second connector according to an embodiment of the present invention. Referring to FIG. 25, the end portion 322 can include a protruding portion 322-1 that protrudes upward on the upper surface. In a state where the first connector 200 and the second connector 300 are coupled, the user can press the protruding portion 322-1 of the end portion 322 to release the coupling of the second connector 300 from the first connector 200.

[0139] At least a part of the second conductive portion 310 can be inserted and coupled to the frame 321 and electrically connected to the first conductive portion 210. That is, the second conductive portion 310 is configured to be electrically connected to a plurality of battery cells, receive an electrical signal from the plurality of battery cells, and transmit it to the first conductive portion 210. For example, the second conductive portion 310 can include an FFC (Flecible Flat Cable) or the like.

[0140] Inside the frame 321, a region surrounded by the frame 321 and the end portion 322 with one side open is formed, and the second conductive portion 310 can be inserted and coupled to the frame 321 so as to be wrapped by the frame 321 and the end portion 322.

[0141] The fastening housing 400 can fasten the second connector housing 320 and the second conductive part 310 to each other. For example, the fastening housing 400 can wrap the second connector housing 320 with the second conductive part 310 inserted and coupled to the second connector housing 320. Specifically, the fastening housing 400 can function to crimp and grip the second connector housing 320 and the second conductive part 310 so that the second conductive part 310 does not detach from the second connector housing 320.

[0142] At the same time, the fastening housing 400 can limit the detachment of the bundling part 322 from the frame 321 by means of the stepped structure 410-1 that contacts one side of the bundling part 322. That is, a structure in which a part of the bundling part 322 is locked to the fastening housing 400 can prevent the phenomenon that the bundling part 322 is excessively distorted or moved upward.

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

[0144] Referring to FIG. 26, the fastening housing 400 can include a fastening body 410 and a fastening part 420.

[0145] The fastening body 410 can contact the second connector housing 320 and the second conductive part 310 and fasten the second connector housing 320 and the second conductive part 310 to each other. 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 behind the bundling part 322 and crimping the second conductive part 310 while being located behind the bundling part 322.

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

[0147] The first fastening body 411 can be positioned behind the binding part 322 with reference to the direction in which the second connector 300 is inserted into the first connector 200. For example, the first fastening body 411 can be formed and arranged to extend on both sides when viewed in the direction of insertion into the second connector 300 while being positioned behind the binding part 322. That is, the first fastening body 411 can be formed along the rear of the binding part 322.

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

[0149] When viewed in the direction in which the second connector 300 is inserted, the movement of the binding part 322 upward can be restricted by being locked to the stepped portion 410-1 of the fastening body 410. For example, in a state where the rear of the binding part 322 has moved upward, the stepped portion 410-1 can contact the rear of the binding part 322.

[0150] Specifically, referring to FIG. 25, when viewed from the front of the binding part 322, the stepped portion 410-1 can 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 connected to the other side of the second surface 410b and formed along the side surface of the binding part 322. In this case, since the upper surface of the binding part 322 is locked to the second surface 410b, the upper surface of the binding part 322 can be positioned below the extension line of the second surface 410b. That is, the movement radius of the binding part 322 can be restricted so that the upper surface of the binding part 322 does not move above the second surface 410b.

[0151] When the binding part 322 is locked to the second surface 410b, the movement of the binding part 322 can be restricted above the second surface 410b. According to such a structure, the movement of the binding part 322 to a predetermined radius is restricted, and the problems of excessive distortion or detachment above the frame 321 can be prevented.

[0152] As a result, the problem that the binding part 322 floats upward and undergoes firing deformation or breakage is prevented in advance, so that the structural stability of the second connector 300 is increased, and the coupling stability of the first connector 200 and the second connector 300 can be enhanced.

[0153] FIG. 27 is an enlarged view of a binding part and a fastening housing according to an embodiment of the present invention.

[0154] Referring to FIG. 27, the upper surface of the first fastening body 411 can be located below the upper surface of the protruding portion 322-1 of the binding part 322. That is, the protruding portion 322-1 of the binding part 322 can be formed higher than the extension surface of the upper surface of the first fastening body 410. Since the protruding portion of the binding part 322 is located above the upper surface of the first fastening body 411, the user can more easily press and handle the protruding portion, so that the usability of the connector module 100 can be increased.

[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 part 322 can be 0.5 mm to 0.7 mm. When 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 part 322 is less than 0.5 mm, it is difficult to distinguish in use between the upper surface of the first fastening body 411 and the upper surface of the protruding portion 322-1 of the binding part 322, and the usability of the connector module 100 may be reduced. Conversely, when 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 part 322 exceeds 0.7 mm, the height of the protruding portion 322-1 of the binding part 322 becomes too high, and the overall height of the connector module 100 increases, so that the internal space of the battery module 1 may be occupied inefficiently.

[0156] Also, 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. When L1 / L2 is less than 0.3, the difference in height between the first fastening body 411 and the second fastening body 412 decreases, making it difficult to grasp the position of the protruding portion 322-1 of the binding portion 322, and the usability of the connector module 100 may be reduced. Conversely, when L1 / L2 exceeds 0.5, the height of the first fastening body 411 becomes considerably small, and there is a risk that the portion of the first fastening body 411 may be easily damaged. Also, the height of the second fastening body 412 becomes considerably high, and a problem may occur where the overall height of the connector module 100 increases.

[0157] The height of the first fastening body 411 (as another expression, the thickness of the first fastening body 411) L1 can have a value of 0.8 to 1.2 mm. Due to the thickness of the first fastening body 411, when pressing the binding portion 322, the hand can be supported so as not to be further pressed downward excessively. This enables the binding portion 322 to move only within an acceptable range, reducing the risk of damage and providing convenience in use.

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

[0159] The fastening portion 420 can be coupled to the side surface of the frame 321 by an annular structure. Specifically, one side of the fastening portion 420 is connected to the fastening body 410, and an annular structure 421 can be formed at the other end of the fastening portion 420. The annular structure 421 of the fastening portion 420 is formed along the side surface of the frame 321 and can be fastened to the lower side of the frame 321.

[0160] More specifically, the fastening portion 420 includes an inclined surface that slopes toward the side surface of the frame 321, and the side surface of the frame 321 can include an inclined surface formed to correspond to the inclined surface of the fastening portion 420. By means of a sliding method in which the inclined surface of the fastening portion 420 moves along the inclined surface of the side surface of the frame 321, the ring structure 421 of the fastening portion 420 can be locked to the side surface of the frame 321. That is, with the second conductive portion 310 inserted into the frame 321, the fastening housing 400 is fastened in a direction perpendicular to the direction in which the second conductive portion 310 is inserted, and as the inclined surface of the fastening portion 420 moves along the inclined surface of the side surface of the frame 321 while the fastening housing 400 is being fastened, the ring structure 421 of the fastening portion 420 can be coupled to the lower side of the side surface of the frame 321.

[0161] [Theme 5] <Through structure of the fastening housing 400> FIG. 28 is a perspective view showing a state in which a second conductive portion is inserted into a second connector housing according to an embodiment of the present invention, FIG. 29 is a perspective view showing a state in which a fastening housing is fastened to the second connector housing and the second conductive portion according to an embodiment of the present invention, and FIG. 30 is a cross-sectional view of a connector module according to an embodiment of the present invention.

[0162] Referring to FIGS. 28 to 30, the fastening housing 400 can penetrate the second connector housing 320 and the second conductive portion 310 to fasten the second connector housing 320 and the second conductive portion 310. For example, the fastening housing 400 can further include a fastening pin 430 that protrudes from the fastening body 410 and penetrates the second connector housing 320 and the second conductive portion 310. That is, the fastening pin 430 can protrude from the lower surface of the fastening body 410 toward the second conductive portion 310. The fastening pins 430 can be formed in a pair on both sides of the lower surface of the fastening body 410.

[0163] Specifically, the fastening body 410 can be formed to protrude toward the second conductive part 310 and form a portion that contacts the second conductive part 310. Moreover, the fastening body 410 can be formed to protrude toward the second conductive part 310 and form a portion that contacts the conductive film 311. The fastening pin 430 can 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 can form the same plane. 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 than the lower surface of the fastening part 420, and the fastening pin 430 can protrude from the lower surfaces of the first fastening body 411 and the second fastening body 412 like this.

[0164] The end portion of the fastening pin 430 can include at least one of a curved surface shape or a horn shape. According to the structure of the end portion of the fastening pin 430 like this, the ease of manufacturing can be increased in the process of the fastening pin 430 being coupled to the second connector housing 320.

[0165] The second connector housing 320 can include a first fastening opening 321a formed therethrough. For example, the first fastening opening 321a can be formed on the inner lower surface of the frame 321. Specifically, the second conductive part 310 is inserted and coupled to a portion 320-1 formed to be recessed and surrounded by the frame 321 and the binding part 322. Based on the recessed portion 320-1, the inner lower surface of the frame 321 is located on the opposite side of the binding part 322, and the first fastening opening 321a can be formed to penetrate the inner lower surface of the frame 321. That is, the first fastening opening 321a can 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 can include a second fastening hole 310a formed therethrough. That is, the second fastening hole 310a can be formed to penetrate from the upper surface to the lower surface of the second conductive part 310. In this case, with the second conductive part 310 inserted and coupled to the second connector housing 320, the first fastening hole 321a and the second fastening hole 310a can be formed on the same straight line. Also, with the second conductive part 310 inserted and coupled to the second connector housing 320, the fastening pin 430 can be arranged to penetrate through the first fastening hole 321a and the second fastening hole 310a integrally.

[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 can be perpendicular to each other.

[0168] According to such a structure, the fastening pin 430 can limit the separation of the second conductive part 310 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 limit 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] With the fastening pin 430 penetrating through the first fastening hole 321a and the second fastening hole 310a and the fastening part 420 being coupled to both side surfaces of the frame 321 by an annular structure, the coupling force between the second connector housing 320 and the second conductive part 310 can be further increased.

[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 enhanced.

[0171] Furthermore, according to the structure of such a fastening pin 430, the contact regions of the first conductive portion 210 and the second conductive portion 310 can be kept constant. That is, by fixing the second conductive portion 310 at a predetermined position inside the second connector housing 320, the first conductive portion 210 and the second conductive portion 310 always form a contact region in a constant area, can maintain a pre-planned contact method and circuit layout, and can improve the quality of transmission and reception of electrical signals. As a result, according to such a structure, electrical signals can be transmitted and received more precisely via the connector module 100, and the control quality of the control unit 10 can be further increased.

[0172] [Theme 6] [Anti-tilting structure] The frame 321 can include a structure for preventing the tilting phenomenon of the second connector 300. The tilting phenomenon means a phenomenon in which the state and angle of the second connector 300 change while the second connector 300 is coupled to the first connector 200. Such a tilting phenomenon is caused by the weakening of the coupling force between the first connector 200 and the second connector 300, and causes problems that inhibit the structural stability of the connector module 100, such as the second connector 300 floating or detaching from the first connector 200.

[0173] The tilting phenomenon of the second connector 300 can occur because the second connector 300 makes a rotational movement, such as rolling, yawing, and pitching with respect to each axis. Specifically, referring to FIG. 24, there can be a rolling motion rotating with respect to the x-axis, a pitching motion rotating with respect to the y-axis, and a yawing motion rotating with respect to the z-axis. In this case, the x-axis can be formed in a direction parallel to the direction in which the second connector 300 is inserted. The y-axis is perpendicular to the x-axis and can be formed along a direction parallel to the ground. The z-axis is perpendicular to the x-axis and the y-axis and can be formed in a direction perpendicular to the ground.

[0174] A structure that prevents such rotational movement and enhances the coupling stability of the second connector 300 may be required.

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

[0176] Referring to FIGS. 25 and 31, the frame 321 may include a frame 321 main body and at least one or more of a first protruding portion 321-1 and a second protruding portion 321-2 that protrude from one side of the frame 321 main body.

[0177] The first protruding portion 321-1 may protrude forward of the frame 321 main body with respect to the direction in which the second connector 300 is inserted. That is, the first protruding portion 321-1 may extend from the frame 321 main body in the x-axis direction (see FIG. 24) and may be a portion inserted into the first connector 200. For example, the first connector 200 may further include a second recessed portion 220b that is recessed in front 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 that is recessed in the x-axis direction from the first recessed portion 220a inside the first connector housing 220. In this case, with respect to the direction in which the second connector 300 is inserted, when the second connector 300 is viewed from the side, 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 can be satisfied. Correspondingly, when viewed from the side, the first protruding portion 321-1 may protrude from the frame 321 main body such that the height of the first protruding portion 321-1 is smaller than the height of the frame 321 main body.

[0179] Also, with respect to the direction in which the second connector 300 is inserted, when the second connector 300 is viewed from the side, 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 having one side connected to the first surface 220b-1 and forming the front surface, and a third surface 220b-3 connected to the other side of the second surface 220b-2 and forming the lower surface.

[0180] The first surface 220b-1 can be the upper side surface of the second recessed portion 220b. The second surface 220b-2 can be the innermost side surface of the second recessed portion 220b, that is, the front surface. The second surface 220b-2 can be perpendicular to the first surface 220b-1. The third surface 220b-3 can constitute the lower side surface of the second recessed portion 220b and can 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 can be formed along the outer surface of the first protruding portion 321-1.

[0181] The first recessed portion 220a can 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 can be formed below 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, that is, the front surface of the frame 321 body.

[0183] According to such a structure, the first protruding portion 321-1 can be locked to the second recessed portion 220b, thereby restricting the rotational movement of the second connector 300. Specifically, the pitching movement rotating with respect to the y-axis can be restricted.

[0184] To maximize the prevention of pitching motion, each surface of the first recessed portion 220a and the second recessed portion 220b can satisfy a specific conditional expression. For example, the length F1 of the support surface 220a-1 of the first recessed portion 220a can be 0.4 mm to 0.6 mm. When 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 quite narrow, the support area for preventing pitching decreases, and the pitching motion of the second connector 300 cannot be effectively prevented. Conversely, when the length F1 of the support surface 220a-1 of the first recessed portion 220a exceeds 0.6 mm, there may be a risk of increasing the unnecessary energized area and generating an energized region not intended in the design.

[0185] Also, the length F2 of the second surface 220b-2 of the second recessed portion can satisfy a specific conditional expression. For example, the length F2 of the second surface 220b-2 can be 0.9 mm to 1.1 mm. When the length F2 of the second surface 220b-2 is less than 0.9 mm, the depth of the recess of the second recessed portion 220b is formed small, and the effect of preventing tilt may decrease. Conversely, when the length F2 of the second surface 220b-2 exceeds 1.1 mm, the length becomes longer compared to the thickness of the first protruding portion 321-1, and there may be a problem that the first protruding portion 321-1 is damaged due to the tilt phenomenon.

[0186] Furthermore, the first protruding portion 321-1 can be formed along a direction extending on both sides with respect to the direction in which the second connector 300 is inserted. That is, the first protruding portion 321-1 can be formed in a direction parallel to the y-axis direction. According to such a structure, due to the form of the first protruding portion 321-1, the rolling motion of the second connector 300 can be prevented in a state where the second connector 300 is inserted and coupled to the first connector 200.

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

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

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

[0190] Furthermore, the third recessed portions 220c formed on both sides below the first recessed portion 220a can form a structure having an inclined step. That is, when looking in the x-axis direction, the innermost side surface of the outermost side of the third recessed portion can have a step with respect to the inner side surface of the first recessed portion 220a and can include an inclined structure.

[0191] According to such a structure, the rotation of the second connector 300 can be restricted by inserting and engaging the second protruding portion 321-2 into the third recessed portion 220c and locking it to the third recessed portion 220c. Specifically, the yawing operation of the second connector 300 can be prevented by the fitting of the second protruding portion 321-2. In order to maximize the above effect, the second protruding portion 321-2 can extend in the longitudinal direction parallel to the direction in which the second connector 300 is inserted.

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

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

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

[0195] According to such a structure, since the first conductive part 210 contacts and is electrically connected only to one surface of the second conductive part 310 instead of both surfaces of the second conductive part 310, the height of the coupling structure of the first conductive part 210 and the second conductive part 310 can be reduced, and the overall height of the connector module 100 can be reduced. However, there may be a problem that the contact force between the first conductive part 210 and the second conductive part 310 becomes weak, and the connector module 100 can include a structure for preventing the problem of weakening of the contact force.

[0196] The closing part 322 can enhance the contact force between the first conductive part 210 and the second conductive part 310 by contacting the upper surface of the second conductive part 310 and applying pressure to the upper surface of the second conductive part 310. For example, the front of the closing part 322 is fixedly connected to the upper surface of the frame 321, and the rear of the closing part 322 can move in the upper or lower direction. Here, the front of the closing part 322 connected to the upper surface of the frame 321 can include an annular structure that forms an empty space inside. That is, the closing part 322 can be made of an elastic material and can perform elastic deformation in which the rear moves upward or downward due to the annular structure.

[0197] Specifically, the closing part 322 can include a contact portion 322-2 that contacts the upper surface of the second conductive part 310. Further, the closing part 322 can include a binding portion 322-3 that binds to the first connector 200. The front of the binding portion is connected to the front of the contact portion 322-2. The binding portion 322-3 is formed to extend rearward with reference to the insertion direction of the second connector 300, and a part of the binding portion 322-3 can be separated from the contact portion 322-2 by a predetermined distance. The binding portion 322-3 can be coupled or decoupled to / from a hole 230 formed through the upper surface of the first connector housing 220, so that the second connector 300 can be bound or decoupled to / from the first connector 200.

[0198] More specifically, with the contact portion 322-2 in contact with the upper surface of the second conductive portion 310 and the front of the binding portion 322 fixed, using the lever principle, an external force is applied to the rear upper surface of the binding portion 322-3, causing the rear of the binding portion 322-3 to move downward and approach 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, enabling the second connector 300 to be bound to the first connector 200. The process of releasing the binding of the first connector 200 and the second connector 300 can be performed by the reverse operation of this. As a result, according to the structure of such a binding portion 322, the second conductive portion 310 can be more firmly fixed by fitting between the contact portion 322-2 and the first conductive portion 210.

[0199] Also, to further enhance the fixing effect, each part of the binding portion 322 can satisfy a specific conditional formula.

[0200] For example, when viewed from the side with respect to the direction in which the second connector 300 is inserted and coupled, the height G1 of the contact portion 322-2 can be 0.6 mm to 1.5 mm. When 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 of the contact portion 322-2 supporting the second conductive portion 310 becomes low, so the function of the contact portion 322-2 to support the second conductive portion 310 and strengthen the fixing force between the first conductive portion 210 and the second conductive portion 310 may be lost. Conversely, when the height G1 of the contact portion 322-2 exceeds 1.5 mm, problems such as the thickness of the binding portion 322 itself increasing and the overall height of the connector module 100 increasing, and the separation distance between the contact portion 322-2 and the binding portion 322-3 becoming too narrow, resulting in the function of the binding portion 322 not being performed smoothly, may occur.

[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 contacting the second conductive portion 310 can be 1.8 mm to 2.1 mm. When the length G2 of the contact portion 322-2 contacting the second conductive portion 310 is less than 1.8 mm, the contact force between the contact portion 322-2 and the second conductive portion 310 weakens, and the function of the contact portion 322-2 of strengthening the fixing force of the first conductive portion 210 and the second conductive portion 310 may be lost. Conversely, when the length G2 of the contact portion 322-2 contacting the second conductive portion 310 exceeds 2.1 mm, the separation space between the binding portion 322 and the second conductive portion 310 is excessively invaded, and the function of the binding portion 322 may deteriorate.

[0202] Furthermore, the separation distance G3 between the contact portion 322-2 and the binding portion 322-3 can be 0.23 mm to 0.27 mm. When the separation distance G3 between the contact portion 322-2 and the binding portion 322-3 is 0.23 mm or less, a problem may occur in that the function of the binding portion 322 deteriorates. Conversely, when the separation distance G3 between the contact portion 322-2 and the binding portion 322-3 exceeds 0.27 mm, the thicknesses of the contact portion 322-2 and the binding portion 322-3 become too thin, and a problem may occur in that they are easily damaged by external factors.

[0203] When viewed from the side with reference to the direction in which the second connector 300 is inserted and coupled, the binding portion 322 can satisfy the conditional expression of 2.5 ≤ G2 / G1 ≤ 3.5. When G2 / G1 < 2.5, the contact force between the contact portion 322-2 and the second conductive portion 310 weakens, and the function of the contact portion 322-2 of strengthening the fixing force of the first conductive portion 210 and the second conductive portion 310 may be lost. Conversely, when G2 / G1 > 3.5, the length increases compared to the thickness, and a problem may occur in that the strength of the contact portion 322-2 becomes weak and it is easily damaged.

[0204] Also, referring to FIG. 31, when the length from the foremost surface to the rearmost surface of the binding portion 322 is G5 and the length from the foremost surface of the binding portion 322 to the rearmost surface of the contact portion 322-2 is G4, the conditional expression of 2≤G5 / G4≤2.5 can be satisfied. When G5 / G4 is less than 2, the area where the lower surface of the contact portion 322-2 supports the second conductive portion 310 becomes small, and this principle cannot be sufficiently applied at the binding portion 322-3, and the function of the binding portion 322 may deteriorate. Conversely, when G5 / G4 exceeds 2.5, the binding portion 322 may occupy excessive space inside the connector module 100, or the binding portion 322-3 may be locked to the contact portion 322-2 and the separation distance between the binding portion 322-3 and the second conductive portion 310 may not be appropriately ensured, and problems such as a decrease in the binding function may occur.

[0205] Finally, referring to FIG. 31, in order for the binding portion 322-3 to effectively move downward and be bound or unbound from the first connector housing 220, the rear lower surface of the binding portion 322-3 can include an inclined surface 322-3a. Specifically, an inclined surface 322-3a can be formed on the rear lower surface of the binding portion 322-3 such that the distance between the binding portion 322-3 and the second conductive portion 310 increases as it goes to the rearmost part of the binding portion 322-3. For example, the angle θ by which the inclined surface 322-3a is inclined with respect to the extension line of the front lower surface of the binding portion 322-3 can be 5 degrees to 8 degrees. When the 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 portion 310 may not be appropriately ensured, and the binding function of the binding portion 322 may deteriorate. Conversely, when the angle θ of the inclined surface 322-3a exceeds 8 degrees, the thickness of the binding portion 322-3 may become too thin and problems such as being easily damaged and deformed by an external impact may occur.

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

[0207] The fastening portion 420 is connected to one side of the fastening body 410 and can be coupled to the side surface of the second connector housing 320. For example, the fastening portion 420 can include a structure formed by extending from both sides of the fastening body 410 to wrap both sides of the second connector housing 320. That is, the fastening portion 420 is formed along both sides of the frame 321 and can be coupled to both sides of the frame 321.

[0208] The fastening portion 420 can be coupled to the side surface of the frame 321 by an annular structure 421. Specifically, one side of the fastening portion 420 is connected to the fastening body 410, and the annular structure 421 can be formed at the other end of the fastening portion 420. The annular structure 421 of the fastening portion 420 is formed along the side surface of the frame 321 and can be fastened to the lower side of the frame 321.

[0209] More specifically, the fastening portion 420 includes an inclined surface inclined toward the side surface of the frame 321, and the side surface of the frame 321 can include an inclined surface formed to correspond to the inclined surface of the fastening portion 420. By a sliding method in which the inclined surface of the fastening portion 420 moves along the inclined surface of the side surface of the frame 321, the annular structure of the fastening portion 420 can be locked to the side surface of the frame 321. That is, in a state where the second conductive portion 310 is inserted into the frame 321, the fastening housing 400 is fastened in a direction perpendicular to the direction in which the second conductive portion 310 is inserted, and the inclined surface of the fastening portion 420 moves along the inclined surface of the side surface of the frame 321 when the fastening housing 400 is fastened, so that the annular structure 421 of the fastening portion 420 can 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 the single surface of the second conductive part 310, and the fixing force of the first conductive part 210 and the second conductive part 310 is strengthened by the binding part 322 and the fastening housing 400, so that the overall height of the connector module 100 is reduced, and the connector module 100 can occupy the space more effectively in the battery module. Specifically, the height H3 of the connector module 100 can be 3.5 mm to 4 mm. That is, the height of the first connector 200 can be 3.5 mm to 4 mm.

[0211] [Theme 8] FIG. 33 is a schematic diagram showing a state of performing a vision inspection on the connector module 100 using the vision inspection device 1000 according to an embodiment of the present invention. The descriptions regarding the above-described embodiments can be equally or similarly applied to this embodiment.

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

[0213] FIG. 34 is a flowchart showing the process of performing a vision inspection in the connector inspection method according to an embodiment of the present invention. The descriptions regarding the above-described embodiments can be equally or similarly applied to this embodiment.

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

[0215] The connector preparation step can be a step of preparing a first connector 200 and a second connector 300 provided to be partially inserted into an accommodation space (or insertion space V) inside the first connector 200.

[0216] The connector preparation step can include a process of preparing the first connector 200. The process of preparing the first connector 200 can be a process of preparing the first connector 200 including a first conduction part 210 and provided with at least one hole 230 through which an accommodation space formed inside communicates with the outside.

[0217] The connector preparation step can include a process of preparing the second connector 300. The process of preparing the second connector 300 is a process of preparing the second connector 300 including a second conduction part 310 provided to be inserted into the accommodation space (or insertion space V) through an opening 220-1 of the first connector 200 and electrically connected to the first conduction part 210, and including a binding part 322 provided to be detachably coupled to at least one hole 230.

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

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

[0220] The connector mounting step can include a hook mounting process. The hook mounting process can include a hook mounting process of hanging the binding part 322 on at least one hole 230 so that the first conduction part 210 and the second conduction part 310 match.

[0221] According to S300, the connector inspection method can 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 reference identification step can include the process of identifying a first reference line.

[0224] The process of identifying the first reference line can be the process of identifying, by vision inspection, the first reference line with a height difference formed when compared with the peripheral area so as to be a reference for vision inspection in the first connector 200.

[0225] The reference identification step can include the process of identifying a second reference line.

[0226] The process of identifying the second reference line can be the process of identifying, by vision inspection, the second reference line for comparison with the first reference line in the second connector 300.

[0227] The reference identification step can include the process of performing vision inspection in a direction transverse to the transfer direction during the transfer of the mounted first connector 200 and second connector 300.

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

[0229] The assembly distance determination step can be the step of determining whether the assembly distance D from the first reference line to the second reference line is within the critical distance range. The critical distance range data serving as a criterion for determining whether it is within the critical distance range can be predefined.

[0230] The assembly distance determination step can include the process of comparing the predefined critical distance range data with the identified assembly distance D.

[0231] According to S500, the connector inspection method can include a normal mounting determination step.

[0232] The normal mounting determination step can be a step of determining that it is normally mounted when it is determined that the assembly distance D is within a predetermined distance range.

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

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

[0235] According to the above-described connector inspection method, it is possible to determine whether the connector is normally mounted. As a result, it is possible to quickly and accurately determine by vision inspection whether the connector or the connector module has been normally mounted during the automatic assembly (or mounting) process without error.

[0236] FIG. 35 is a perspective view showing a connector module 100 to be inspected by vision inspection according to an embodiment of the present invention. The description regarding the above-described embodiment can be equally or similarly applied to this embodiment.

[0237] The connector module 100 can include a first connector 200. The first connector 200 can be provided with a first conductive portion 210 and at least one hole 230 that communicates the internal accommodation space V (or insertion space) with the outside.

[0238] The first connector 200 can be provided with a first reference line. The first reference line can form a height difference when compared with the peripheral region so as to serve as a reference for vision inspection. For example, the first reference line can be an edge of a reference depression region 220-2-1 formed by a part of the outer edge of the first connector 200 being recessed. As another example, it can be an edge of the first connector 200.

[0239] The connector module 100 can include a second connector 300. The second connector 300 can be inserted into the accommodation space V (or insertion space) through the opening 220-1 of the first connector 200, and can include a second conductive portion 310 provided to be electrically connected to the first conductive portion 210. The second connector 300 can be detachably attached to the first connector 200 by locking the binding portion 322 of the second connector 300 to at least one hole 230 of the first connector 200.

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

[0241] Embodiments regarding the first reference line and the second reference line will be described later.

[0242] FIG. 36 is a plan view showing reference lines S1 and S2 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner.

[0243] A reference recessed region 220-2-1 can be formed in the first connector 200. The reference recessed region 220-2-1 can be formed by a part of the outer edge of the first connector 200 (or the first connector housing 200) being recessed. The reference recessed region 220-2-1 can be a region recessed in a quadrangular shape. The reference recessed region 220-2-1 can be a region formed adjacent to the edge portion on the opposite side of the side where the second connector 300 is inserted in the first connector 200.

[0244] The first reference line S1 can be a line parallel to the edge portion on the side where the second connector 300 is inserted among the edge portions of the reference recessed region 220-2-1.

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

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

[0247] FIG. 37 is a plan view showing the reference lines S1-1 and S2-1 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied identically or similarly to this embodiment.

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

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

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

[0251] FIG. 38 is a plan view showing the reference lines S1-2 and S2-2 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied identically or similarly to this embodiment.

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

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

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

[0255] FIG. 39 is a plan view showing the reference lines S1-3 and S2-3 according to an embodiment of the present invention. The description regarding the above-described embodiment can be applied to this embodiment in the same or similar manner.

[0256] The first reference line S1-3 can be the edge of at least one hole 230 on the side opposite to the opening 220-1 among the edges.

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

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

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

[0260] The first reference line S1-4 can be the edge of at least one hole 230 on the side opposite to the opening 220-1 among the edges.

[0261] The second reference line S2-4 can be the edge of the second connector 300 that is parallel to the first reference line S1-4. Specifically, it can be the edge of the second connector 300 on the side opposite to the opening 220-1 side.

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

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

[0264] As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and various implementations are possible within the equivalent scope of the technical idea of the present invention and the claims described below by those having ordinary knowledge in the technical field to which the present invention pertains.

Explanation of Reference Numerals

[0265] 1 Battery module 2 Multiple batteries 3 Case 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 depression 13 PCB frame 100 Connector module 200 First connector 210 First conduction part 220 First connector housing 220-1 Opening 220-2 Upper part 220-3 Side part 220-4 Lower part 220-2-1 Reference depression area 220a First depression part 220b Second depression part 220c Third depression part 221 Protrusion 222 Body part 223 Partition 224 Depression line 225 Protruding rib 226 Internal rib 230 Hole 300 Second connector 310 Second conduction part 311 Conduction film 312 First folding part 313 Second folding part 320 Second connector housing 321 Frame 321-1 First protruding part 321-2 Second protruding part 322 Binding part 322-1 Protruding part of the binding part 322-2 Contact part 322-3 Binding part 340 Open part 350 Comb-shaped structure 360 Comb-shaped base part 400 Fastening housing 410 Fastening body 411 First fastening body 412 Second fastening body 410a First surface of the fastening body 410b Second surface of the fastening body 410c Third surface of the fastening body 420 Fastening part 430 Fastening pin 1000 Vision inspection device 1100 Transfer device V Insertion space DI Insertion direction

Claims

1. a first connector forming a first recessed portion; a second connector inserted into and coupled to the first recessed portion; The second connector is a second connector housing including a frame inserted into the first recess and a binding portion connected to one surface of the frame and configured to be coupled to the first connector; a second conductive part inserted into the frame and electrically connected to the first connector; The frame includes a first protruding portion protruding forward in a direction in which the second connector is inserted.

2. the first connector further includes a second recessed portion recessed forward of the first recessed portion, The connector module of claim 1 , wherein the first protruding portion is inserted into the second recessed portion.

3. The connector module according to claim 2 , wherein when the second connector is viewed from the side with respect to the direction in which the second connector is inserted, the height of the first recessed portion is greater than the height of the second recessed portion.

4. When the second connector is viewed from the side with respect to the direction in which the second connector is inserted, the second recessed portion has a first surface extending from an inner upper surface of the first recessed portion, a second surface having one side connected to the first surface and forming a front surface, and a third surface connected to the other side of the second surface and forming a bottom surface; The connector module of claim 3 , wherein the first recessed portion includes a support surface coupled to the third surface and extending downwardly from the third surface.

5. The connector module of claim 4 , wherein a first surface of the second recessed portion supports an upper surface of the first protruding portion, and a third surface of the second recessed portion supports a lower surface of the first protruding portion.

6. The connector module of claim 5 , wherein the support surface of the first recessed portion supports a front surface of the frame.

7. 7. The connector module according to claim 6, wherein the length of the support surface of the first recessed portion is 0.4 mm to 0.6 mm.

8. 6. The connector module according to claim 5, wherein the length of the second surface of the second recessed portion is 0.9 mm to 1.1 mm.

9. The connector module according to claim 5 , wherein the first protruding portion is engaged with the second recessed portion, thereby restricting rotation of the second connector.

10. The connector module according to claim 5, wherein the first protruding portion is formed in front of the frame along a direction extending on both sides with respect to the direction in which the second connector is inserted.

11. A first connector forming a first recessed portion formed to be recessed, and a second connector inserted and coupled to the first recessed portion, wherein the second connector includes a second connector housing coupled to a frame inserted and coupled to the first recessed portion and one surface of the frame, and including a binding portion coupled to the first connector; and a second conductive portion inserted and coupled to the frame and electrically connected to the first connector. The connector module, wherein the frame includes a second protruding portion protruding upward or downward with respect to the direction in which the second connector is inserted.

12. When viewed in the direction in which the second connector is inserted, the first connector further includes a third recessed portion recessed above or below the first recessed portion, The connector module according to claim 11, wherein the second protruding portion is inserted into the third recessed portion.

13. The connector module according to claim 12, wherein the third recessed portion is formed on both sides of the first recessed portion when viewed in the direction in which the second connector is inserted.

14. The connector module according to claim 13, wherein the second protruding portions are formed on both sides of the frame so as to correspond to the third recessed portions.

15. The connector module according to claim 14, wherein the rotation of the second connector is restricted by being locked to the third recessed portion by the second protruding portion.

16. The connector module according to claim 14, wherein the second protruding portion extends in a longitudinal direction parallel to the direction in which the second connector is inserted.

17. A case forming an accommodation space inside, 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, and a battery module including the connector module according to any one of claims 1 to 10 that electrically connects the plurality of battery cells and the control unit.

18. The first connector further includes a second recessed portion recessed in front of the first recessed portion, The battery module according to claim 17, wherein the first protruding portion is inserted into the second recessed portion.

19. A case that forms an accommodation space inside; 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 including the plurality of battery cells and the connector module according to any one of claims 11 to 16 that electrically connects the plurality of battery cells and the control unit.

20. When viewed in the direction in which the second connector is inserted, the first connector further includes a third recessed portion formed by being recessed above or below the first recessed portion; The battery module according to claim 19, wherein the second protruding portion is inserted into the third recessed portion.

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