Electric wire with terminal and electric wire with connector

Abstract

To provide a technique capable of reducing the length of a portion of a terminal-equipped electric wire disposed in a cavity of a connector housing. A terminal-equipped electric wire includes a covered electric wire including a conductor core and an insulating covering covering the conductor core; a joint terminal connected to the conductor core; a connector terminal connected to a counterpart terminal; a single-core relay conductor having one end connected to the joint terminal and the other end connected to the connector terminal; and a sealing member covering an intermediate portion of the relay conductor. A wire barrel of the joint terminal is crimped to the conductor core and the relay conductor at the same position in a length direction of the joint terminal.

Description

Technical Field

[0001] This disclosure relates to wires with terminals and wires with connectors. Background Technology

[0002] Patent Document 1 discloses a terminald wire disposed in an insertion hole provided in a connector housing. In the terminald wire described in Patent Document 1, the wire and the connector terminal are electrically connected by a relay conductor. The insertion hole is sealed off by a sealing member covering the relay conductor.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: International Publication No. 2019 / 059301 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] It is desirable to shorten the length of the portion of the wire with terminals that is positioned in the insertion hole.

[0008] Therefore, the aim is to provide a technique that can shorten the length of the portion of a terminald wire disposed in the cavity of a connector housing.

[0009] Solution for solving the problem

[0010] The terminald wire disclosed herein comprises: a sheathed wire including a conductor core and an insulating sheath covering the conductor core; a connector terminal for connection to the conductor core; a connector terminal for connection to a counterpart terminal; a single-core repeater conductor having one end connected to the connector terminal and the other end connected to the connector terminal; and a sealing member covering the middle portion of the repeater conductor, wherein the spool of the connector terminal is crimped to the conductor core and the repeater conductor at the same position along the length direction of the connector terminal.

[0011] Invention Effects

[0012] According to this disclosure, the length of the portion of a terminald wire disposed in the cavity of the connector housing can be shortened. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view showing the wire with terminals and the wire with connector according to Embodiment 1.

[0014] Figure 2 This is a top view showing the terminald wire of Embodiment 1.

[0015] Figure 3 This is an exploded perspective view showing the wire with terminals according to Embodiment 1.

[0016] Figure 4 It is along Figure 2 A sectional view cut along line IV-IV.

[0017] Figure 5 This is an explanatory diagram showing the connection between the conductor core and the relay conductor and the connector terminal.

[0018] Figure 6 This is an explanatory diagram showing a modified example of the connection between the conductor core and the relay conductor.

[0019] Figure 7 This is an explanatory diagram showing another variation of the connection portion of the conductor core and the relay conductor.

[0020] Figure 8 This is an exploded perspective view showing the wire with terminals according to Embodiment 2.

[0021] Figure 9 This is a cross-sectional view showing a modified example of a wire with terminals. Detailed Implementation

[0022] [Description of embodiments of this disclosure]

[0023] First, the implementation methods of this disclosure are listed and explained.

[0024] The terminald wire disclosed herein is as follows.

[0025] (1) A terminald wire comprises: a sheathed wire including a conductor core and an insulating sheath covering the conductor core; a connector terminal for connection to the conductor core; a connector terminal for connection to a counterparty terminal; a single-core repeater conductor, one end of which is connected to the connector terminal and the other end of which is connected to the connector terminal; and a sealing member covering the middle portion of the repeater conductor, wherein the spool of the connector terminal is crimped to the conductor core and the repeater conductor at the same position along the length direction of the connector terminal. The spool of the connector terminal is crimped to the conductor core and the repeater conductor at the same position along the length direction of the connector terminal. Therefore, compared to the case where the spool is crimped to the conductor core and the repeater conductor separately at different positions along the length direction of the connector terminal, the connector terminal can be shortened. This shortens the length of the portion of the terminald wire disposed in the cavity of the connector housing.

[0026] (2) In the terminal-equipped wire of (1), the conductor core and the relay conductor may be arranged in the height direction of the connector terminal in the portion crimped to the spool. Thus, the conductor core and the relay conductor can be arranged in the crimping direction.

[0027] (3) In the terminald wire of (2), the conductor core and the conductor core of the relay conductor may be located on the bottom side of the connector terminal. Thus, the relay conductor can cover the top of the conductor core.

[0028] (4) In the terminald wire of (1), the conductor core and the relay conductor may be arranged in the width direction of the connector terminal in the portion crimped to the wire spool. Thus, the conductor core and the relay conductor can be arranged in a direction intersecting the crimping direction.

[0029] (5) In the terminal wire of (4), the wire spool may also include a pair of crimping tabs, with the conductor core wire wrapped around one of the crimping tabs and the relay conductor wrapped around the other of the crimping tabs. Thus, the conductor core wire and the relay conductor can be crimped by different crimping tabs respectively.

[0030] (6) In any of (1) to (5) of the terminald wire, the sealing member may also include a sealing body that can contact the inner surface of the connector housing and a crimped portion disposed on one side of the sealing body, the crimped portion being crimped to either the connector terminal or the connector terminal. Therefore, compared to the case where crimped portions are provided on both sides of the sealing body and are respectively crimped to the connector terminal and the connector terminal, the sealing member can be shortened. This shortens the length of the portion of the terminald wire disposed in the cavity of the connector housing.

[0031] (7) In addition, the connector-equipped wire of this disclosure comprises: a connector housing having a cavity; and a terminal wire of any one of (1) to (6) housed in the cavity. The length of the portion of the terminal wire disposed in the cavity of the connector housing can be shortened. As a result, the cavity itself can also be shortened, thereby enabling miniaturization of the connector.

[0032] [Details of the embodiments of this disclosure]

[0033] The following description, with reference to the accompanying drawings, illustrates specific examples of terminald wires and connectors of the present disclosure. It should be noted that the present disclosure is not limited to these examples, but rather, as indicated by the claims, includes all modifications within the meaning and scope equivalent to the claims.

[0034] [Implementation Method 1]

[0035] The following describes the terminal wire of Embodiment 1 and the connector wire having the terminal wire. Figure 1 This is a cross-sectional view showing the wire 20 with terminals and the wire 1 with connector according to Embodiment 1. Figure 1In this design, the connector housing 10 is cut along a surface parallel to the length direction of the cavity 14. Figure 1 In the diagram, the wire 20 with terminals is not shown in cross-sectional view.

[0036] The connector-equipped wire 1 includes a connector housing 10 and a wire 20 with terminals. A cavity 14 is formed in the connector housing 10. The tip of the wire 20 with terminals is positioned in a predetermined location within the cavity 14 (hereinafter referred to as the retracted state). A sealing member 50 is provided on the wire 20 with terminals. In the retracted state, the sealing member 50 is located in a predetermined sealing position (here, the position at the middle of the cavity 14 along its length). In the retracted state, the sealing member 50 stops water from entering one opening and the other opening of the cavity 14.

[0037] <Connector Housing>

[0038] The connector housing 10 includes a housing body 12. A cavity 14 is formed in the housing body 12. At least one cavity 14 is formed. Alternatively, multiple cavities 14 may be formed. The multiple cavities 14 can be formed in a multi-layered or multi-row manner. The multiple cavities 14 may also be formed in a single layer or multiple rows.

[0039] Cavity 14 is formed through the housing body 12. One opening of cavity 14 is located on one end face of housing body 12. A wire 20 with a terminal is inserted into cavity 14 through this opening. The other opening of cavity 14 is located on the other end face of housing body 12. This other opening is the portion through which a conductor pin provided on the male terminal passes.

[0040] It is important to note that Figure 1 The example shown illustrates a case where the terminal of the wire 20 housed in cavity 14 is a female terminal. In this case, the conductor pin of the male terminal of the connector on the opposite side is inserted into cavity 14 through the other opening. Furthermore, inside cavity 14, the female terminal and the conductor pin of the male terminal on the opposite side are connected. However, the terminal housed in cavity 14 can also be a male terminal. In this case, the conductor pin of the male terminal protrudes outside cavity 14 through the other opening. Furthermore, outside cavity 14, the conductor pin of the male terminal is connected to the female terminal on the opposite side. The other opening is larger than the conductor pin and smaller than the female terminal. This prevents the female terminal housed in cavity 14 from detaching from the other opening.

[0041] A vehicle mounting portion 16 is provided in the connector housing 10. The vehicle mounting portion 16 is provided such that it protrudes outward from the side of the housing body 12. The vehicle mounting portion 16 is used to assemble the connector housing 10 to a vehicle. A mounting hole 17 is formed in the vehicle mounting portion 16. Bolts or the like are inserted into the mounting hole 17 to assemble the vehicle mounting portion 16 to the vehicle. A metal ring or the like may also be provided in the mounting hole 17. The vehicle mounting portion 16 may also be omitted from the connector housing 10.

[0042] Additionally, a seal mounting portion 28 is provided in the connector housing 10. The seal mounting portion 28 is provided in an annular recess on a portion of the side of the housing body 12. The seal mounting portion 28 is provided on both sides of the vehicle assembly portion 16. O-rings and other seals are mounted in the seal mounting portion 28. The seal mounting portion 28 may also be omitted in the connector housing 10.

[0043] The connector housing 10 is formed using an insulating resin or the like. The connector housing 10 is, for example, an injection-molded part.

[0044] <Wires with terminals>

[0045] remove Figure 1 In addition, refer to Figure 2 and Figure 3 The terminal wire 20 of Embodiment 1 will be described in detail. Figure 2 This is a top view showing the terminald wire 20 of Embodiment 1. Figure 3 This is an exploded perspective view showing the terminal wire 20 of Embodiment 1.

[0046] The terminald wire 20 includes a sheathed wire 22, a connector terminal 30, a connector terminal 40, a relay conductor 46, and a sealing member 50. A connector terminal 30 is provided at one end of the sheathed wire 22. A connector terminal 40 and a relay conductor 46 are provided at the top of the connector terminal 30. The relay conductor 46 is connected to both the connector terminal 30 and the connector terminal 40. The connector terminal 30 and the connector terminal 40 are connected via the relay conductor 46. The portion of the sheathed wire 22 connected to the connector terminal 30 and the portion adjacent to it are housed in a cavity 14. The portion of the sheathed wire 22 adjacent to the portion connected to the connector terminal extends outward from one opening into the cavity 14.

[0047] The sheathed wire 22 has a conductor core 24 and an insulating sheath 26. Here, the conductor core 24 is a stranded wire. Stranded wire is formed by twisting together multiple wires. Such a wire is formed using a conductor such as copper, copper alloy, aluminum, or aluminum alloy. The insulating sheath 26 covers the conductor core 24. The insulating sheath 26 is formed by extruding a resin material around the conductor core 24 or by coating it with an insulating coating. The tip of the conductor core 24 protrudes beyond the insulating sheath 26, forming an exposed core portion.

[0048] The connector terminal 30 is crimped to the sheathed wire 22 and the relay conductor 46. The connector terminal 30 includes a wire reel 32 and insulating reels 34 and 36. The wire reel 32 and insulating reels 34 and 36 are open reels. The wire reel 32 has a pair of crimping tabs 32a and 32b. The insulating reel 34 has a pair of crimping tabs 34a and 34b. The insulating reel 36 has a pair of crimping tabs 36a and 36b. The three pairs of crimping tabs 32a, 32b, 34a, 34b, 36a, and 36b are connected to the bottom 31 of the connector terminal 30.

[0049] The bottom 31 is formed in the shape of a flat plate or a semi-cylindrical tube. The bottom 31 is elongated in one direction. The length direction of the bottom 31 is the same as the length direction of the connector terminal 30. Three pairs of crimping tabs 32a, 32b, 34a, 34b, 36a, and 36b are arranged in pairs along the length direction of the bottom 31 from one end to the other in the order of crimping tabs 34a, 34b, 32a, 32b, 36a, and 36b. One pair of crimping tabs 32a and 32b protrudes from both sides of the bottom 31 in the width direction. The same applies to the other pairs of crimping tabs. The width direction of the bottom 31 is the same as the width direction of the connector terminal 30. The three pairs of crimping tabs 32a, 32b, 34a, 34b, 36a, and 36b protrude to one side relative to the bottom 31. The direction in which the crimping tabs 32a, 32b, 34a, 34b, 36a, and 36b protrude from the bottom 31 is the same as the height direction of the connector terminal 30. Such a connector terminal 30 is formed, for example, by bending a conductor plate.

[0050] The spool 32 is crimped to the exposed portion of the conductor core 24 and the relay conductor 46 at the end. The portion of the spool 32 crimped to the conductor core 24 and the relay conductor 46 forms a connection portion CP1. Details of the connection portion CP1 will be described later.

[0051] The insulating cylinder 34 is pressed against the insulating covering portion 26. The portion of the insulating cylinder 36 pressed against the insulating covering portion 26 forms a covering retaining portion. The insulating cylinder 36 is pressed against the sealing member 50. The portion of the insulating cylinder 36 pressed against the sealing member 50 forms a sealing member retaining portion. The insulating cylinders 34 and 36 may also be omitted.

[0052] The connector terminal 40 includes a female-side connection portion 41 and a relay conductor connection portion 42. As described above, the female-side connection portion 41 is formed in the shape of a female terminal. The female-side connection portion 41 may also be formed in the shape of a male terminal. The connector terminal 40 is crimped to the relay conductor 46. The connector terminal 40 is formed, for example, by bending a conductor plate. However, the connector terminal 40 may also be connected to the relay conductor 46 by soldering, crimping, or the like.

[0053] The opposite-side connecting portion 41 is box-shaped with an opening at the front end. The male terminal is inserted into the interior of the opposite-side connecting portion 41 through this opening. A spring contact portion or the like is appropriately provided inside the opposite-side connecting portion 41. Inside the opposite-side connecting portion 41, the spring contact portion or the like is connected to the male terminal.

[0054] The relay conductor connection part 42 has a coil 43 and an insulating cylinder 44. The coil 43 is crimped to the relay conductor 46. The insulating cylinder 44 is crimped to the sealing member 50. The insulating cylinder 44 may be omitted in the relay conductor connection part 42.

[0055] The relay conductor 46 is formed as a single-core conductor. The relay conductor 46 is formed as a cylindrical rod. The relay conductor 46 may also be formed as a cylindrical rod. The relay conductor 46 is longer than the sealing member 50. Both ends of the relay conductor 46 protrude beyond the sealing member 50 along its length. The two ends of the relay conductor 46 are crimped to the coils 32 and 43 respectively. The sealing member 50 is installed at the middle portion of the relay conductor 46 along its length.

[0056] The sealing member 50 has a sealing body 52 and crimped portions 54 and 55. A through hole 56 is formed in the sealing member 50. A relay conductor 46 passes through the through hole 56. The sealing body 52 and the crimped portions 54 and 55 are arranged along the axial direction of the through hole 56. Here, the crimped portion 54 is provided on one side of the sealing body 52, and the crimped portion 55 is provided on the other side. Alternatively, the crimped portion may be provided on only one side of the sealing body 52. ​​Alternatively, either or both of the crimped portions 54 and 55 may be omitted.

[0057] The sealing body 52 is the portion that stops water from flowing between one opening and the other when the terminald wire 20 is inserted into the cavity 14. On the outer surface of the sealing body 52, annular recesses and annular protrusions are alternately connected along the length direction. The sealing body 52 is located between the connector terminal 30 and the connector terminal 40 along the length direction. The annular protrusions in the sealing body 52 protrude radially outward from the connector terminal 30 and the connector terminal 40. Before the terminald wire 20 is inserted into the cavity 14, the outer diameter of the sealing body 52 is set to be the same as or larger than the inner diameter of the cavity 14 at the predetermined sealing position. When the terminald wire 20 is inserted into the cavity 14, the outer surface of the sealing body 52 is in close contact with the inner surface of the cavity 14.

[0058] The two crimped portions 54 and 55 are respectively crimped onto the insulating cylinders 36 and 44 while covering the relay conductor 46. Thus, the crimped portions 54 and 55 are positioned and held at the connector terminal 30 and connector terminal 40, and the sealing member 50 is positioned and held at the terminald wire 20. If both crimped portions 54 and 55 are omitted, the relay conductor 46 is preferably shaped to position and hold the sealing member 50. For example, an annular groove may be formed in the relay conductor 46. By receiving the sealing member 50 in the annular groove, the sealing member 50 is positioned and held at the relay conductor 46.

[0059] In its stored state, the sealing member 50 prevents water from entering between one opening and the other opening of the cavity 14. Water, oil, or other liquids can be considered as the object of the sealing member 50 for preventing water entry. For example, oil used in automatic transmissions for controlling gear shifting (working oil) can be used. The water-stopping between the openings of the cavity 14 is performed as follows.

[0060] The interior of the relay conductor 46 is solid. This prevents liquid from seeping into the interior of the relay conductor 46 from one side of the openings in the cavity 14 to the other. The interior of the relay conductor 46 can also be hollow. Even in this case, when at least one side of the relay conductor 46 is closed along its length, liquid can still be prevented from seeping into the interior of the relay conductor 46 from one side of the openings in the cavity 14 to the other.

[0061] The inner surface of the sealing body 52 (the inner circumferential surface of the through hole 56) is formed in a circular shape. In the retracted state, the inner surface of the sealing body 52 is in close contact with the outer surface of the relay conductor 46 throughout its entire circumference. Thus, the sealing body 52 can prevent liquid from seeping from one side of the openings on both sides of the cavity 14 along the space between the sealing body 52 and the relay conductor 46. It should be noted that it is sufficient that at least a portion of the inner surface of the sealing body 52 along its length is in close contact with the outer surface of the relay conductor 46 throughout its entire circumference. The inner surface of the sealing body 52 may also be smaller than the outer surface of the relay conductor 46 when it is installed before being installed on the relay conductor 46. Alternatively, in the retracted state, pressure from the cavity 14 may cause the inner surface of the sealing body 52 to press against the outer surface of the relay conductor 46.

[0062] The outer surface of the annular protrusion of the sealing body 52 is circular. In the retracted state, the outer surface of the annular protrusion of the sealing body 52 is in close contact with the inner surface of the cavity 14 at the sealing position throughout its entire circumference. This prevents liquid from seeping from one side of the openings on both sides of the cavity 14 between the sealing body 52 and the connector housing 10.

[0063] <Connection section CP1>

[0064] Reference Figure 4 and Figure 5 The connection part CP1 is described in detail. Figure 4 It is along Figure 2 The sectional view taken along line IV-IV is a sectional view showing the connecting portion CP1. Figure 5 This is an explanatory diagram showing the connection between conductor core 24 and relay conductor 46 and connector terminal 30. Figure 4 The state of the wire drum 32 after crimping is shown. Figure 5 This shows the state of the spool 32 before crimping.

[0065] A spool 32 is crimped with conductor core 24 and relay conductor 46 to form a connection portion CP1. The spool 32 of the connector terminal 30 is crimped with conductor core 24 and relay conductor 46 at the same position along the length direction of the connector terminal 30. Conductor core 24 extends from one spool 32 towards one side of the length direction of the connector terminal 30, and relay conductor 46 extends towards the other side. Here, the portions of conductor core 24 and relay conductor 46 crimped with the spool 32 are arranged in the height direction of the connector terminal 30. Here, conductor core 24 of conductor core 24 and relay conductor 46 is located on the bottom 31 side. A pair of crimping tabs 32a and 32b abut against each other at their top sides, simultaneously covering conductor core 24 and relay conductor 46.

[0066] like Figure 5As shown, such a connection portion CP1 can be formed by crimping with a crimping die 80. The crimping die 80 has a crimping tool 82 and an anvil 84. The crimping tool 82 and anvil 84 are arranged in one direction. In the terminal crimping machine, the crimping tool 82 and anvil 84 are supported so that they can move closer or further away in that direction. During crimping, the connector terminal 30 is arranged such that the height direction of the connector terminal 30 is the arrangement direction of the crimping tool 82 and anvil 84. The crimping tool 82 and anvil 84 approach the connector terminal 30 in the height direction to crimp the connector terminal 30. The crimping tool 82 is formed with a guide surface for bending the top ends of a pair of crimping pieces 32a, 32b. After contacting the guide surface, the top ends of the pair of crimping pieces 32a, 32b deform along the guide surface and fall completely inward. While the crimping tool 82 is bending the pair of crimping pieces 32a, 32b, the anvil 84 supports the outer surface of the bottom 31 ( Figure 5 (The bottom of the paper).

[0067] like Figure 5 As shown, crimping begins between a pair of crimping tabs 32a and 32b with the conductor core 24 and the repeater conductor 46 positioned on the bottom 31 side. At this time, the conductor core 24 is covered by the repeater conductor 46. This prevents a portion of the conductor core 24 from protruding outside the coil 32 between the pair of crimping tabs 32a and 32b during crimping.

[0068] Before crimping, the conductor core 24 and the relay conductor 46 are cylindrical. In the pre-crimping spool 32, a pair of crimping plates 32a and 32b extend upwards from the bottom 31. Thus, an opening exists between the pair of crimping plates 32a and 32b in the pre-crimping spool 32. In the post-crimping spool 32, the top ends of the pair of crimping plates 32a and 32b are bent and deformed, closing the opening. The post-crimping spool 32 is deformed into a shape corresponding to the shape of the crimping die 80. Accompanying the deformation of the spool 32, the conductor core 24 and the relay conductor 46 in the post-crimping spool are crushed by the spool 32 and deformed into a shape corresponding to the inner surface of the spool 32. Figure 4 The double-dotted lines showing the conductor core 24 and relay conductor 46 are schematic diagrams illustrating the crimped state. Multiple conductor cores 24 may be formed, for example, with some conductors overlapping each other and extending towards the width of the bottom 31.

[0069] Figure 6 This is an explanatory diagram showing a modified example of the connection portion CP1 between the conductor core 24 and the relay conductor 46. Figure 6 The coil 32, shown in solid lines, and the conductor core 24 and relay conductor 46 inside it, shown in double-dotted lines, are shown in their crimped state. Figure 6The spool 32, shown in double-dotted lines, and the conductor core 24 and relay conductor 46 inside it, also shown in double-dotted lines, are shown in their state before crimping.

[0070] exist Figure 6 The connecting part CP2 shown is also with Figure 4 Similarly, in the connection portion CP1 shown, the conductor core 24 and the relay conductor 46 are arranged in the height direction of the connector terminal 30 at the portion crimped with the coil 32. Figure 6 The connection portion CP2 shown has the conductor core 24 and the repeater conductor 46 located on the bottom 31 side. This connection portion CP2 is formed by crimping between a pair of crimping tabs 32a and 32b with the conductor core 24 and the repeater conductor 46 located on the bottom 31 side.

[0071] Figure 7 This is an explanatory diagram showing another variation of the connection portion CP1 between conductor core 24 and relay conductor 46. Figure 7 The coil 32, shown in solid lines, and the conductor core 24 and relay conductor 46, shown in double-dotted lines inside it, are shown in their crimped state. Figure 7 The spool 32, shown in double-dotted lines, and the conductor core 24 and relay conductor 46 inside it, also shown in double-dotted lines, are shown in their state before crimping.

[0072] exist Figure 7 The connecting portion CP3 shown, in which the conductor core 24 and the relay conductor 46 are crimped with the coil 32, are arranged in the width direction of the connector terminal 30. Figure 7 In the connection portion CP3 shown, the conductor core 24 is wrapped by one of the pair of crimping plates 32a and 32b, crimped with one of the crimping plates 32a and 32b. The repeater conductor 46 is wrapped by the other of the pair of crimping plates 32b, crimped with the conductor core 24 and the repeater conductor 46 arranged in the width direction. This connection portion CP3 is formed by crimping between the pair of crimping plates 32a and 32b.

[0073] In the connection portion CP3 where the conductor core 24 and the relay conductor 46 are arranged in the width direction of the connector terminal 30, if the conductor dimensions (conductor cross-sectional area) of the conductor core 24 and the relay conductor 46 are different, the smaller conductor is covered by one of the pair of crimping tabs 32a and 32b. The larger conductor may also extend from the other side of the pair of crimping tabs 32a and 32b. A portion of the larger conductor may also be covered or engaged by one of the pair of crimping tabs 32a and 32b.

[0074] <Effects of Implementation Method 1, etc.>

[0075] Based on the terminald wire 20 and connectord wire 1 configured as described above, the spool 32 of the connector terminal 30 is crimped to the conductor core wire 24 and the relay conductor 46 at the same position along the length direction of the connector terminal 30. Therefore, compared to the case where different spools are crimped to the conductor core wire 24 and the relay conductor 46 at different positions along the length direction of the connector terminal 30, the connector terminal 30 can be shortened. As a result, the length of the portion of the terminald wire 20 disposed in the cavity 14 of the connector housing 10 can be shortened.

[0076] When the connector is connected to vibrating machinery such as a transmission, the terminald wire 20 and the connector housing 10 vibrate during vibration. If this vibration increases, the tight fit between the sealing member 50 and the other component may be released on either the inner or outer surface. Furthermore, increased stress on any single conductor portion may lead to conductor breakage or premature metal fatigue. By shortening the portion of the terminald wire 20 disposed within the cavity 14, excessive vibration of the terminald wire 20 and the connector housing 10 during vibration can be suppressed. This helps to prevent a decrease in sealing performance and the increase in stress concentrated on any single conductor portion.

[0077] By shortening the portion of the terminald wire 20 disposed in the cavity 14, the insertion of the terminald wire 20 into the cavity 14 becomes easier. Furthermore, the cavity 14 itself can also be shortened, thereby enabling miniaturization of the connector.

[0078] Here, the portion of the terminald wire 20 that is rearward of the sealing member 50 (the portion covering the side of the wire 22) is shorter. As a result, the amount of movement of the sealing member 50 from one opening of the cavity 14 to the predetermined position of the sealing member 50 is reduced. As a result, the insertion of the terminald wire 20 becomes easier.

[0079] Furthermore, in the connecting portions CP1 and CP2, the conductor core 24 and the relay conductor 46 are arranged in the height direction of the connector terminal 30 at the portion where they are crimped with the wire spool 32. This allows the conductor core 24 and the relay conductor 46 to be arranged in the crimping direction. Additionally, in the connecting portion CP1, the conductor core 24 is located on the bottom 31 side of the connector terminal 30. This allows the relay conductor 46 to cover the top of the conductor core 24.

[0080] Furthermore, in the connection portion CP3, the conductor core 24 and the relay conductor 46 are arranged in the width direction of the connector terminal 30 at the portion crimped with the coil 32. This allows the conductor core 24 and the relay conductor 46 to be arranged in a direction intersecting the crimping direction. Additionally, in the connection portion CP3, the conductor core 24 is wrapped by one of the pair of crimping plates 32a and 32b, and the relay conductor 46 is wrapped by the other of the pair of crimping plates 32b. This allows the conductor core 24 and the relay conductor 46 to be crimped by different crimping plates 32a and 32b respectively.

[0081] [Implementation Method 2]

[0082] The terminal wire of Embodiment 2 will be described. Figure 8 This is an exploded perspective view showing the terminald wire 120 of Embodiment 2. It should be noted that in the following description, structural elements that are the same as those previously described are labeled with the same reference numerals, and their descriptions are omitted.

[0083] In the terminald wire 120, the shape of the sealing member 150 differs from that of the sealing member 50 in the terminald wire 20. The sealing member 150 includes a single crimped portion 55. The crimped portion 55 is located on one side of the sealing body 52. ​​The crimped portion 55 crimps with either the connector terminal 130 or the connector terminal 40. Therefore, compared to the case where crimped portions 54 and 55 are provided on both sides of the sealing body 52, and each crimped portion 54 and 55 crimps with the connector terminal 130 and connector terminal 40 respectively, the sealing member 150 can be shortened. This shortens the length of the portion of the terminald wire 120 disposed within the cavity 14 of the connector housing 10.

[0084] Here, the crimped portion 55 is provided on the connector terminal 40 side. The crimped portion 55 crimps with the connector terminal 130 and the connector terminal 40 in the connector terminal 40. Therefore, the sealing member 150 is formed in a shape in which the crimped portion 54 in the sealing member 50 is omitted. In addition, the connector terminal 130 in the terminald wire 120 is formed in a shape in which the insulating cylinder 36 in the connector terminal 30 is omitted. The connector terminal 130 includes a wire cylinder 32 and an insulating cylinder 34. As a result, in the terminald wire 120, the connector terminal 130 side is shorter than the sealing body 52. ​​As a result, the amount of movement of the sealing member 150 when the terminald wire 120 is inserted into the cavity 14 is reduced. As a result, the insertion of the terminald wire 120 into the cavity 14 becomes easier.

[0085] A crimped portion in the sealing member may also be provided on the connector terminal 30 side. In this case, the sealing member is formed with the crimped portion 55 in the sealing member 50 omitted. Additionally, in this case, the connector terminal is formed with the insulating sleeve 44 in the connector terminal 40 omitted.

[0086] [Postscript]

[0087] Figure 9 This is a cross-sectional view showing a modified example of a wire with terminals.

[0088] exist Figure 9 In the modified examples of the terminald wire 220 and the connector-equipped wire 101 with the terminald wire 220 shown, the shape of the connector terminal 230 differs from the shapes of the connector terminals 30 and 130 described above. Specifically, a protrusion 38 is provided in the connector terminal 230. The structure of the terminald wire 220, other than the aspect of having the protrusion 38, is the same as that of the terminald wire 120.

[0089] The protrusion 38 is formed to abut against the inner circumferential surface of the cavity 14 in the retracted state. The protrusion 38 abuts against the inner circumferential surface of the cavity 14. Thus, the connector terminal 230 is supported on the housing body 12. The protrusion 38 is formed to protrude radially outward from the spool 32 and the insulating spool 34. Figure 9 In the example shown, the protrusion 38 is located in the connector terminal 230 at a rearward end position relative to the insulating cylinder 34. The protrusion 38 can be located in any position within the connector terminal 230. For example, the protrusion 38 can be located between the spool 32 and the insulating cylinder 34. Alternatively, the protrusion 38 can also be located at a position closer to the top of the spool 32.

[0090] exist Figure 9 In the example shown, the protrusion 38 is provided to protrude to both sides of the connector terminal 230. The protrusion 38 may also be provided to protrude downwards from the connector terminal 230. The protrusion 38 may also be provided to protrude to the sides and downwards from the connector terminal 230. The protrusion 38 may also be formed to protrude radially outwards from the sealing body 52. ​​The protrusion 38 may also be formed by bending the conductor plate, similar to the spool 32 and the insulating cylinder 34.

[0091] The protrusion 38 can also be in a state where it elastically deforms in a radially decreasing manner when subjected to forces from the inner surface of the cavity 14 in the retracted state. For example, the protrusion 38 can be formed into a spring shape such as a leaf spring, allowing it to elastically deform in a radially decreasing manner within the cavity 14. Furthermore, the protrusion 38 is formed larger than the portion of the cavity 14 that abuts against the protrusion 38 when it is retracted into the cavity 14. In this case, as... Figure 9As shown, the protrusion 38 is preferably formed with a portion that gradually protrudes radially outward toward the rear end. As a result, when the protrusion 38 is housed in the cavity 14, it is easily deformed toward the smaller direction by the force from the inner surface of the cavity 14.

[0092] It should be noted that the structures described in the above embodiments and variations can be appropriately combined as long as they do not contradict each other.

[0093] Explanation of reference numerals in the attached figures

[0094] 1. 101 Wire with Connector

[0095] 10 Connector Housing

[0096] 12. Shell Body

[0097] 14 cavities

[0098] 16 Vehicle Assembly Department

[0099] 17 mounting holes

[0100] 28. Sealing component installation section

[0101] 20, 120, 220 wires with terminals

[0102] 22 Sheathed wires

[0103] 24 Conductor core wire

[0104] 26 Insulation Covering Section

[0105] 30, 130, 230 connector terminals

[0106] 31 Bottom

[0107] 32 and 43 spools

[0108] 32a, 32b, 34a, 34b, 36a, 36b crimping pieces

[0109] 34, 36, 44 Insulating cylinders

[0110] 38. Protrusion

[0111] 40 Connector Terminals

[0112] 41. Connecting part on the opposite side

[0113] 42 Relay conductor connection part

[0114] 46 Relay conductor

[0115] 50, 150 sealing components

[0116] 52 Sealing Body

[0117] 54, 55 Pressed-in parts

[0118] 56 Through holes

[0119] 80 Crimping Die

[0120] 82 Edge Roller

[0121] 84 Anvil

[0122] S seal

[0123] CP1, CP2, CP3 connection section

Claims

1. A terminal-equipped electric wire, comprising: a covered electric wire including a conductor core wire and an insulating covering portion covering the conductor core wire; a joint terminal connected to the conductor core wire; a connector terminal connected to a counterpart terminal; a single-core relay conductor having one end connected to the joint terminal and the other end connected to the connector terminal; and a sealing member covering an intermediate portion of the relay conductor, wherein the joint terminal includes a wire barrel and an insulating barrel, the wire barrel is crimped to the conductor core wire and the relay conductor at the same position in a length direction of the joint terminal, the insulating barrel is crimped to the insulating covering portion, the conductor core wire and the relay conductor are arranged in a width direction of the joint terminal at portions crimped to the wire barrel, the conductor core wire is a stranded wire in which a plurality of wires are stranded, the single-core relay conductor and the conductor core wire of the stranded wire are in contact with each other and are crimped, the wire barrel has a pair of crimping pieces protruding in a height direction of the joint terminal from a bottom portion of the joint terminal, the conductor core wire is crimped by one of the pair of crimping pieces, and the single-core relay conductor is crimped by the other of the pair of crimping pieces, and the conductor core wire and the relay conductor are integrally crimped in a state of being arranged in the width direction between the pair of crimping pieces.

2. The terminal-equipped electric wire according to claim 1, wherein the plurality of wires and the single-core relay conductor are crushed by the wire barrel and are deformed into shapes corresponding to an inner surface of the wire barrel.

3. The terminal-equipped electric wire according to claim 1, wherein the plurality of wires are respectively thinner than the single-core relay conductor.

4. The terminal-equipped electric wire according to claim 3, wherein the conductor core wire among the conductor core wire and the relay conductor is positioned on a bottom portion side of the joint terminal.

5. The terminal-equipped electric wire according to claim 1, wherein the sealing member includes a sealing body contactable with an inner surface of a cavity of a connector housing and a crimped portion provided on one side of the sealing body, and the crimped portion is crimped to either one of the joint terminal and the connector terminal.

6. The terminal-equipped electric wire according to claim 1, wherein the wire barrel and the insulating barrel are separated in the length direction, and a portion of the relay conductor is positioned between the wire barrel and the insulating barrel in the length direction.

7. The terminal-equipped electric wire according to claim 6, wherein a portion of the insulating covering portion is positioned between the portion of the relay conductor and the insulating barrel in the length direction.

8. A connector-equipped electric wire, comprising: a connector housing formed with a cavity; and the terminal-equipped electric wire according to any one of claims 1 to 7 housed in the cavity. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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