Cable with connector

The innovative crimping portion design in the connector-attached cable enhances connection strength by using a slit-equipped second crimping portion to securely embrace the cable, addressing the weakness in existing cables.

JP7771873B2Active Publication Date: 2025-11-18SUMITOMO ELECTRIC INDUSTRIES LTD
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Patent Information

Application Number
JP2022085508
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-05-25
Publication Date
2025-11-18
Estimated Expiration
2042-05-25

AI Technical Summary

Technical Problem

Existing connectorized cables lack sufficient connection strength between the cable and the connector.

Method used

A connector-attached cable design featuring a shell with a crimping portion comprising a first crimping portion wider than the cable and a second crimping portion with a slit, allowing the second crimping portion to securely embrace the cable without interference, enhancing the connection strength.

Benefits of technology

The design significantly increases the connection strength between the cable and the connector, ensuring a firm crimping force even with multiple cables, while maintaining optimal contact area and preventing interference.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a cable with a connector that can further increase the connection strength between the cable and the connector.SOLUTION: A cable with a connector has a substrate, a cable, and a shell, and the shell has a caulking portion that caulks the cable. The caulking portion has a first caulking portion and a second caulking portion that is smaller in cross-sectional view of the cable than the first caulking portion, and the first caulking portion is located outside the second caulking portion, and the second caulking portion has a slit along the longitudinal direction of the cable.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present disclosure relates to connectorized cables. [Background technology]

[0002] Patent Document 1 discloses a connector-equipped cable in which a substrate is attached to the end of a multi-core cable, and the cable end and the substrate are covered with a shell. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020 / 153347 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present disclosure is to provide a connectorized cable that can further increase the connection strength between the cable and the connector. [Means for solving the problem]

[0005] A connector-attached cable according to one aspect of the present disclosure includes: A substrate; Cable and a shell; The shell is provided with a crimping portion for crimping the cable, The crimping portion has a first crimping portion and a second crimping portion, The width of the first crimping portion is wider than the width of the cable, The width of the second crimping portion is equal to or less than the width of the cable, Both ends of the first crimping portion in the width direction are bent to embrace the cable and the second crimping portion and crimp the cable, The second crimping portion is provided with a slit extending along the longitudinal direction of the cable. [Effects of the Invention]

[0006] According to the above, the connection strength between the cable and the connector can be further increased. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram illustrating an example of a connectorized cable according to the present disclosure. [Figure 2] FIG. 2 is an exploded view of the connectorized cable according to the embodiment. [Figure 3] 3 is a cross-sectional view of the connectorized cable shown in FIG. 1 taken along the line AA. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. A connectorized cable according to one aspect of the present disclosure includes: (1) a substrate; Cable and a shell; The shell is provided with a crimping portion for crimping the cable, The crimping portion has a first crimping portion and a second crimping portion, The width of the first crimping portion is wider than the width of the cable, The width of the second crimping portion is equal to or less than the width of the cable, Both ends of the first crimping portion in the width direction are bent to embrace the cable and the second crimping portion and crimp the cable, The second crimping portion is provided with a slit extending along the longitudinal direction of the cable. According to this configuration, the second crimping portion of the crimping part that secures the cable has a slit, so that the portions of the second crimping portion that straddle the slits bite into the cable without interfering with each other, allowing the cable to be crimped and secured more firmly, thereby further increasing the connection strength between the cable and the shell.

[0009] (2) In the above (1), the cable may be a bundle of a plurality of branch wires, and the plurality of branch wires may be crimped together by the crimping portion. According to this configuration, since the slits are provided, a good crimping force can be provided even when a plurality of cables are provided.

[0010] (3) In the above (1) or (2), the shell is a first shell covering at least a portion of a first surface of the substrate; a second shell covering at least a portion of a second surface of the substrate opposite the first surface; and the first crimping portion is provided on the first shell, The second crimping portion may be provided on the second shell. According to this configuration, by providing the crimping portions on the opposing first and second shells, the crimping portions can be brought into closer contact with the cable, thereby increasing the connection strength between the cable and the shells.

[0011] (4) In any of (1) to (3) above, the first crimping portion and the second crimping portion may be crimped to each other, and a slit in the second crimping portion may be provided in a portion facing the space between both widthwise ends of the first crimping portion. With this configuration, one end and the other end of the first crimping portion are crimped to different parts across the slit of the second crimping portion, so the crimping portion fits tighter to the cable, increasing the crimping force and thus increasing the connection strength between the cable and the shell.

[0012] (5) In any one of the above (1) to (4), the slit may be provided with a width of 0.3 mm or more and 0.5 mm or less in a direction perpendicular to the cable axial direction. This configuration can prevent a reduction in the contact area of ​​the second crimping portion and interference between the respective portions across the slit of the second crimping portion.

[0013] [Details of the embodiments of the present disclosure] Specific examples of a connector-attached cable 1 according to an embodiment of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0014] 1 etc. indicate directions in the connector-attached cable 1, with U being up, D being down, F being forward, B being backward, R being right, and L being left. Note that FIG. 1 is a top view seen from above.

[0015] 1 is a schematic diagram showing an example of a connectorized cable 1 according to an embodiment of the present disclosure. The connectorized cable 1 according to this embodiment can be used, for example, to connect electronic devices (not shown). The connectorized cable 1 has a connector provided at an end of a cable 10. As shown in Fig. 1, the connectorized cable 1 includes a cable 10 and a connector 2. The connector 2 includes a shell 20 and a substrate 30 (described later) provided inside the shell 20. In Fig. 1, the cable 10 is shown as two branch lines.

[0016] In the present disclosure, cable 10 has two branch wires 11, a shielding layer 13, and an outer sheath 14. Shielding layer 13 is, for example, a metal braid made of braided metal wires. The two branch wires have a first branch wire 15 and a second branch wire 16. First branch wire 15 has two conductors 17A and a first branch wire insulating layer 12A. Second branch wire 16 has multiple conductors 17B, multiple coated branch wires 18, a filler 19, and a second branch wire insulating layer 12B. Shielding layer 13 and outer sheath 14 of cable 10 are arranged to cover first branch wire 15 and second branch wire 16. Furthermore, a groove 100 is formed on the surface of outer sheath 14 at a portion corresponding to the boundary between the two branch wires 15, 16 in a cross-sectional view of the cable.

[0017] The shell 20 is a component made of metal. The shell 20 is, for example, a rectangular cylindrical component with an opening at one end. The substrate 30 is housed inside the shell 20. The connection portion 31 is located in the opening at the end of the shell 20. 1, for convenience of explanation, the direction from the center of the shell 20 to where the cable 10 is connected is referred to as the forward direction F. The front part of the shell 20 is a crimping portion 22. The crimping portion 22 is a portion for fixing the cable 10 to the connector 2.

[0018] Next, the crimping portion will be described in detail with reference to Fig. 2. Fig. 2 is an exploded perspective view of the connectorized cable 1 according to the embodiment.

[0019] As shown in FIG. 2, the shell 20 has a first shell 23 and a second shell 24. The first shell 23 and the second shell 24 are both rectangular members when viewed from above. The first shell 23 and the second shell 24 are formed, for example, by stamping and bending a metal plate. The first shell 23 and the second shell 24 are connected to each other, and the substrate 30 is housed between the first shell 23 and the second shell 24. In FIG. 2, for convenience of explanation, the direction in which the second shell 24 is located relative to the first shell 23 is referred to as the upper direction U. The second shell 24 is provided above the first shell 23.

[0020] The first shell 23 has a first crimping portion 25. The second shell 24 has a second crimping portion 26. In this disclosure, the first crimping portion 25 and the second crimping portion 26 may be collectively referred to as the "crimping portion 22." The first crimping portion 25 is provided at the front end of the first shell 23, and the second crimping portion 26 is provided at the front end of the second shell 24. The size of the first crimping portion 25 is determined appropriately depending on the cable 10 to be fixed. The first crimping portion 25 is larger than the second crimping portion 26. The first crimping portion 25 can cover a wider area of ​​the surface of the cable 10 than the second crimping portion 26. The size of the second crimping portion 26 is determined appropriately depending on the cable 10 to be fixed. The second crimping portion 26 is provided with a slit 27 that extends from the end of the second crimping portion 26 on the second shell 24 side toward the front F. The width of the slit 27 in the left-right direction is determined appropriately depending on the cable 10 to be fixed, but is preferably 0.3 mm or more and 0.5 mm or less.

[0021] Next, a state in which the cable 10 is crimped to the shell 20 will be described with reference to Fig. 3. Fig. 3 is a cross-sectional view of the connectorized cable 1 in Fig. 1 taken along the line AA.

[0022] As shown in FIG. 3 , when cable 10 is crimped and fixed, second crimping portion 26 is brought into close contact with cable 10 so that slit 27 is positioned in groove 100 of cable 10. First crimping portion 25 follows the periphery of cable 10 to cover substantially the entire circumference of cable 10 so that the left-right direction LR ends of first crimping portion 25 are positioned in groove 100, and is brought into close contact with cable 10. The left-right direction ends of second crimping portion 26 are positioned more inward than first crimping portion 25, and the respective portions separated by slit 27 are in close contact with the respective left-right direction LR ends of first crimping portion 25. At this time, it is desirable that the left-right direction LR ends of first crimping portion 25 and the respective portions separated by slit 27 of second crimping portion 26 are crimped so as not to interfere with each other.

[0023] In cable 10 shown in FIG. 3, first branch wire 15 has a smaller diameter than second branch wire 16. When first branch wire 15 and second branch wire 16 have different diameters as in cable 10 shown in FIG. 3, groove 100 does not necessarily have to be located at the center of cable 10 in the width direction in the left-right direction (LR direction). For example, in cable 10 shown in FIG. 3, groove 100 may be located closer to first branch wire 15 (to the left L) than the center in the LR direction of cable 10. Groove 100 may also be located at the boundary between multiple branch wires.

[0024] Like the groove portion 100, the slit 27 provided in the second crimping portion 26 does not have to be positioned at the center of the width of the second crimping portion 26 in the left-right direction L-R. The second crimping portion 26 may be provided at a position corresponding to the groove portion 100. When the first branch wire 15 has a smaller diameter than the second branch wire 16, the slit 27 in Fig. 2 may be positioned closer to the first branch wire 15 than the center of the width of the second crimping portion 26 in the left-right direction.

[0025] According to the connector-attached cable 1 of the present disclosure, the second crimping portion 26 is provided with the slit 27, so that when the second crimping portion 26 is crimped and fixed, the portions of the second crimping portion 26 that straddle the slit 27 can bite into the cable 10 without interfering with each other. As a result, the second crimping portion 26 can be more closely attached to the cable 10 than when the second crimping portion 26 does not have the slit 27, and a good crimping force can be obtained. This increases the connection strength between the cable 10 and the connector 20.

[0026] Furthermore, according to the connector-attached cable 1 of the present disclosure, one end and the other end of the first crimping portion 25 are crimped to different locations across the slit 27 of the second crimping portion 26, so that the crimping portion 22 is more closely attached to the cable 10, increasing the crimping force. As a result, the connection strength between the cable 10 and the shell 20 can be increased.

[0027] Furthermore, if the portions of second crimping portion 26 that straddle slit 27 are too close, the portions may interfere with each other, reducing the crimping force. Furthermore, if slit 27 is too large in second crimping portion 26, the size of the portion crimping cable 10 becomes small in cross section, reducing the contact area of ​​second crimping portion 26 with cable 10 and reducing the crimping force. According to connector-attached cable 1 of the present disclosure, slit 27 is provided with a width of 0.3 mm or more and 0.5 mm or less in the direction perpendicular to the axial direction of cable 10 of second crimping portion 26, thereby preventing these problems.

[0028] Furthermore, according to the connector-equipped cable 1 of the present disclosure, a slit 27 is provided in the second crimping portion 26, so that even when multiple cables 10 are provided, the second crimping portion 26 can be used to provide a good crimping force to each cable 10.

[0029] Although the embodiments of the present disclosure have been described above, it goes without saying that the technical scope of the present disclosure should not be interpreted as being limited by the description of the present embodiments. The present embodiments are merely examples, and it will be understood by those skilled in the art that various modifications of the embodiments are possible within the scope of the invention described in the claims. The technical scope of the present disclosure should be determined based on the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0030] 1: Cable with connector 2: Connector 10: Cable 11: Branch line 12: Insulating layer 13: Shield layer 14:Outer cover 15:First branch line 16:Second branch line 17A, 17B: conductor 18: Clothes branch line 19:Inclusions 20: Shell 21: Opening 22: Crimping part 23: First Shell 24: Second Shell 25: First crimping part 26: Second crimping part 27: Slit 30: Circuit board 31: Connection 100: Groove

Claims

1. A connector-equipped cable, A substrate; Cable and a shell; The shell is provided with a crimping portion for crimping the cable, The crimping portion has a first crimping portion and a second crimping portion, The width of the first crimping portion is wider than the width of the cable, The width of the second crimping portion is equal to or less than the width of the cable, Both ends of the first crimping portion in the width direction are bent to embrace the cable and the second crimping portion and crimp the cable, The second crimping portion is provided with a slit along the longitudinal direction of the cable. Cable with connector.

2. 2. The connectorized cable according to claim 1, wherein the cable is formed by bundling a plurality of branch wires, and the plurality of branch wires are collectively crimped by the crimping portion.

3. The shell is a first shell covering at least a portion of a first surface of the substrate; a second shell covering at least a portion of a second surface of the substrate opposite the first surface; and the first crimping portion is provided on the first shell, The second crimping portion is provided on the second shell. The connectorized cable according to claim 2 .

4. the first crimping portion and the second crimping portion are crimped to each other, The slit of the second crimping portion is provided at a position facing the space between both ends of the first crimping portion in the width direction. The connector-attached cable according to any one of claims 1 to 3.

5. 4. The connector-attached cable according to claim 1, wherein the slit has a width of 0.3 mm or more and 0.5 mm or less in a direction perpendicular to the axial direction of the cable.

Citation Information

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