JP7396149B2 - Multi-core cable with connector - Google Patents

Description

The present disclosure relates to multi-core cables with connectors.

As a multi-core cable with a connector used for transmission between electronic devices, a multi-core cable with a connector in which the connector is provided with a strain relief is known.

Japanese Patent Application Publication No. 2016-81672

Although the multi-core cable described in Patent Document 1 can achieve the intended purpose, it is difficult to obtain excellent strength.

An object of the present disclosure is to provide a multi-core cable with a connector that provides excellent strength.

A multi-core cable with a connector according to the present disclosure includes a multi-core cable and a connector having an axial direction in the longitudinal direction of the multi-core cable and connected to one end of the multi-core cable, the connector including: The first exterior has a cylindrical peripheral wall portion with an opening at one end in the axial direction, and the second exterior is connected to the one end, and the second exterior includes: a first wall portion including a first through hole into which the multi-core cable is inserted; a first fixing portion connected to the first wall portion and inserted into the first wall portion; a second fixing part that is continuous with the first fixing part and inserted into the first wall part, and the connector snap-fits the first fixing part and the peripheral wall part to each other. The multi-core cable includes a first snap-fit mechanism and a second snap-fit mechanism that snap-fits the second fixing part and the peripheral wall part to each other, and in a cross-sectional view perpendicular to the axial direction, the multi-core cable has: The first fixing part is arranged between the first fixing part and the second fixing part, the first fixing part supports two parts of the multi-core cable, and the second fixing part supports two parts of the multi-core cable. Support the place.

According to the present disclosure, excellent strength can be obtained.

FIG. 1 is a top view showing a multi-core cable with a connector according to an embodiment. FIG. 2 is a side view showing the multi-core cable with a connector according to the embodiment. FIG. 3 is a perspective view showing the boot in the embodiment. FIG. 4 is a side view showing the boot in the embodiment. FIG. 5 is a sectional view (part 1) showing the boot in the embodiment. FIG. 6 is a sectional view (Part 2) showing the boot in the embodiment. FIG. 7 is a perspective view showing the strain relief in the embodiment. FIG. 8 is a side view showing the strain relief in the embodiment. FIG. 9 is a cross-sectional view showing the strain relief in the embodiment. FIG. 10 is a perspective view showing the connector in the embodiment. FIG. 11 is a sectional view (part 1) showing the connector in the embodiment. FIG. 12 is a cross-sectional view (Part 2) showing the connector in the embodiment. FIG. 13 is a sectional view showing a connector in a modified example.

The embodiment will be described below.

[Description of embodiments of the present disclosure]

[1] A multi-core cable with a connector according to an aspect of the present disclosure includes a multi-core cable and a connector having an axial direction in the longitudinal direction of the multi-core cable and connected to one end of the multi-core cable. The connector has a first exterior having a cylindrical peripheral wall portion with an opening at one end in the axial direction, and a second exterior coupled to the one end. , the second exterior includes a first wall portion including a first through hole into which the multi-core cable is inserted; and a first fixing portion continuous with the first wall portion and inserted into the first wall portion. , a second fixing part that is connected to the first wall part, faces the first fixing part, and is inserted into the first wall part, and the connector includes the first fixing part and the peripheral wall part. and a second snap-fit mechanism that snap-fits the second fixing part and the peripheral wall part together, in a cross-sectional view perpendicular to the axial direction. , the multi-core cable is disposed between the first fixing part and the second fixing part, the first fixing part supports two places of the multi-core cable, and the second fixing part is , supporting the multi-core cable at two locations.

The connector has a first exterior and a second exterior, and the second exterior has a first wall portion including a first through hole into which a multi-core cable is inserted. Therefore, the second exterior can ensure bendability, and the first exterior can ensure strength. Further, the peripheral wall part of the first exterior and the first fixing part of the second exterior are snap-fit coupled to each other by the first snap-fit mechanism, and the peripheral wall part of the first exterior and the second fixing part of the second exterior are connected to each other by a first snap-fit mechanism. Since they are snap-fit coupled to each other by the snap-fit mechanism, the first exterior and the second exterior can be firmly coupled. Therefore, even if, for example, stress is applied to the multi-core cable in the direction of pulling it out from the connector, separation between the first sheath and the second sheath can be suppressed. Furthermore, since the first fixing part supports the multi-core cable at two places, and the second fixing part supports the multi-core cable at two places, it is possible to suppress variations in the position of the multi-core cable within the connector. Therefore, even if bending stress is applied to the multi-core cable, breakage of the multi-core cable within the connector can be suppressed.

[2] In [1], the first snap-fit mechanism includes a first protrusion provided on the peripheral wall portion, a first recess provided on the first fixing portion and into which the first protrusion fits; It may have. In this case, the first protrusion of the peripheral wall part fits into the first recess of the first fixing part, and the peripheral wall part and the first fixing part are firmly coupled.

[3] In [1], the first snap-fit mechanism includes a first recess provided in the peripheral wall portion and a first protrusion provided in the first fixing portion and fitted into the first recess. May have. In this case, the first convex part of the first fixing part fits into the first recess of the peripheral wall part, and the peripheral wall part and the first fixing part are firmly coupled.

[4] In [1] to [3], the second snap-fit mechanism includes a second convex portion provided on the peripheral wall portion and a second convex portion provided on the second fixing portion, into which the second convex portion fits. 2 recesses. In this case, the second protrusion of the peripheral wall part fits into the second recess of the second fixing part, and the peripheral wall part and the second fixing part are firmly coupled.

[5] In [1] to [3], the second snap fit mechanism includes a second recess provided in the peripheral wall portion and a second protrusion provided in the second fixing portion that fits into the second recess. It may have a part. In this case, the second convex part of the second fixing part fits into the second recess of the peripheral wall part, and the peripheral wall part and the second fixing part are firmly coupled.

[6] In [1] to [5], the first fixing part and the second fixing part may have a U-shape in a cross-sectional view perpendicular to the axial direction. In this case, the first fixing part can easily support the multi-core cable at two places, and the second fixing part can easily support the multi-core cable at two places.

[7] In [1] to [6], the opening may be closed by the first wall. In this case, it is possible to prevent foreign matter from entering the connector from the outside.

[8] In [1] to [7], the connector may include a board provided within the first exterior and to which one end of the multi-core cable is connected. In this case, signals and the like transmitted via the multi-core cable can be routed using the board.

[9] In [1] to [8], the first exterior has a second wall part continuous with the other end of the peripheral wall part and provided with a second through hole, and the connector It may also have an insertion terminal inserted into the two through holes. In this case, the connector can be inserted into an external device or the like using the insertion terminal.

[10] In [1] to [9], the first modulus of elasticity of the first material of the first exterior may be higher than the second modulus of elasticity of the second material of the second exterior. In this case, superior strength can be obtained by the first exterior, and superior bendability can be obtained by the second exterior.

[11] A multi-core cable with a connector according to another aspect of the present disclosure includes: a multi-core cable; a connector having an axial direction in the longitudinal direction of the multi-core cable and connected to one end of the multi-core cable; , the connector has a cylindrical peripheral wall portion having an opening at one end in the axial direction, and a second through hole connected to the other end of the peripheral wall portion. a wall portion, a strain relief connected to the one end, and an insertion terminal inserted into the second through hole, the boot having a first elastic modulus of a first material of the boot; is higher than a second elastic modulus of the second material of the strain relief, and the strain relief includes a first through hole into which the multi-core cable is inserted, a first wall portion that closes the opening, and a first wall portion that closes the opening portion; a first fixing part continuous with the first wall and inserted into the first wall; and a second fixing part continuous with the first wall, facing the first fixing part and inserted into the first wall. , the peripheral wall part has a first convex part and a second convex part, the first fixing part has a first concave part into which the first convex part fits, and the second fixing part has a first concave part into which the first convex part fits The part has a second recess into which the second convex part fits, and in a cross-sectional view perpendicular to the axial direction, the multi-core cable is disposed between the first fixing part and the second fixing part. , the first fixing part and the second fixing part have a U-shape, the first fixing part supports the multi-core cable at two places, and the second fixing part supports the multi-core cable at two places. Supports the multi-core cable at two locations.

In this case, the strain relief ensures bendability, and the boot ensures strength. Moreover, the boot and the strain relief can be firmly connected. Therefore, even if, for example, stress is applied to the multi-core cable in the direction of pulling it out from the connector, separation between the boot and the strain relief can be suppressed. Furthermore, fluctuations in the position of the multi-core cable within the connector can be suppressed. Therefore, even if bending stress is applied to the multi-core cable, breakage of the multi-core cable within the connector can be suppressed. Further, it is possible to prevent foreign matter from entering the connector from the outside, and the connector can be inserted into an external device using the insertion terminal.

[Details of embodiments of the present disclosure]
Hereinafter, embodiments of the present disclosure will be described in detail, but the embodiments are not limited thereto. Note that, in this specification and the drawings, components having substantially the same functional configurations may be given the same reference numerals to omit redundant explanation.

[Multi-core cable configuration]
First, the configuration of the connector-equipped multi-core cable according to the embodiment will be described. FIG. 1 is a top view showing a multi-core cable with a connector according to an embodiment. FIG. 2 is a side view showing the multi-core cable with a connector according to the embodiment.

The connector-equipped multicore cable 1 according to the present embodiment can be used, for example, as a cable for connecting electronic devices (not shown). Note that U, D, F, B, R, and L shown in FIG. is the right side and L is the left side. FIG. 2 is a side view seen from the left L.

As shown in FIGS. 1 and 2, the multi-core cable 1 with a connector includes a multi-core cable 2, a first connector 3 connected to the front F side end of the multi-core cable 2, and a first connector 3 connected to the front F side end of the multi-core cable 2. It has a second connector 4 connected to the end on the rear B side.

[Connector configuration]
Next, the configurations of the first connector 3 and the second connector 4 will be explained. The first connector 3 and the second connector 4 each have a boot 100 and a strain relief 200, as shown in FIGS. 1 and 2. In the first connector 3 , the strain relief 200 is provided on the rear B side of the boot 100 , and in the second connector 4 , the strain relief 200 is provided on the front F side of the boot 100 .

[Boot configuration]
Next, the configuration of the boot 100 will be explained. The boot 100 of the second connector 4 has the same configuration as the boot 100 of the first connector 3 except for the orientation with respect to the multi-core cable 2. Therefore, here, the configuration of the boot 100 of the first connector 3 will be explained in detail, and the explanation of the configuration of the boot 100 of the second connector 4 will be omitted. FIG. 3 is a perspective view of the boot 100. FIG. 4 is a side view showing the boot 100. 5 and 6 are cross-sectional views showing the boot 100. FIG. 4 is a side view seen from the rear B. FIG. 5 is a sectional view taken along line VV in FIGS. 3 and 4. FIG. FIG. 6 is a sectional view taken along the line VI-VI in FIGS. 3 and 4.

As shown in FIGS. 4 to 6, the boot 100 has a cylindrical peripheral wall portion 110 with an opening 110X at the end on the rear B side in the FB direction. The boot 100 further includes a front wall portion 120 that continues to the other end of the peripheral wall portion 110. The front wall portion 120 includes a through hole 120X into which the connector plug 6 is inserted. The FB direction is an example of the axial direction. The front wall portion 120 is an example of a second wall portion. The through hole 120X is an example of a second through hole. The connector plug 6 is an example of an insertion terminal.

The peripheral wall portion 110 has a first side wall 111 perpendicular to the RL direction, a second side wall 112 perpendicular to the RL direction, a third side wall 113 perpendicular to the UD direction, and a fourth side wall 114 perpendicular to the UD direction. The second side wall 112 is provided on the left L side of the first side wall 111, and the fourth side wall 114 is provided on the lower D side of the third side wall 113. The first side wall 111 is continuous with the third side wall 113 and the fourth side wall 114. The second side wall 112 is continuous with the third side wall 113 and the fourth side wall 114.

A first convex portion 131 is provided on the inner wall surface 111A of the first side wall 111. The first convex portion 131 has a wedge-shaped shape including an inclined surface 131A inclined with respect to the inner wall surface 111A. The inclined surface 131A is inclined so that the further back B gets closer to the inner wall surface 111A.

A second convex portion 132 is provided on the inner wall surface 112A of the second side wall 112. The second convex portion 132 has a wedge-shaped shape including an inclined surface 132A that is inclined with respect to the inner wall surface 112A. The inclined surface 132A is inclined so that the further back B gets closer to the inner wall surface 112A.

The first convex portion 131 and the second convex portion 132 are provided, for example, near the end of the peripheral wall portion 110 on the rear B side.

The through hole 120X may have a rectangular shape with rounded corners when viewed from the front F in a side view. That is, for example, the planar shape of the through hole 120X in a side view from the front F may include two mutually parallel line segments and two outwardly convex semicircles connecting these two line segments. .

[Strain relief configuration]
Next, the configuration of the strain relief 200 will be explained. The strain relief 200 of the second connector 4 has the same configuration as the strain relief 200 of the first connector 3 except for the orientation with respect to the multi-core cable 2. Therefore, here, the configuration of the strain relief 200 of the first connector 3 will be described in detail, and the description of the configuration of the strain relief 200 of the second connector 4 will be omitted. FIG. 7 is a perspective view showing the strain relief 200. FIG. 8 is a side view showing the strain relief 200. FIG. 9 is a cross-sectional view showing the strain relief 200.
FIG. 8 is a side view seen from the left L. FIG. 9 is a sectional view taken along line IX-IX in FIGS. 7 and 8.

As shown in FIGS. 7 to 9, the strain relief 200 has a rear wall portion 250 with a through hole 250X into which the multi-core cable 2 is inserted. The strain relief 200 further includes a first fixing part 210 continuous to the rear wall part 250 and a second fixing part 220 continuous to the rear wall part 250. The second fixing part 220 is provided on the left L side of the first fixing part 210 and faces the first fixing part 210. The first fixing part 210 and the second fixing part 220 are inserted into the peripheral wall part 110 of the boot 100. The rear wall portion 250 is an example of a first wall portion. The through hole 250X is an example of a first through hole.

The first fixing part 210 has a U-shape in a cross-sectional view perpendicular to the FB direction. For example, the first fixing part 210 includes a horizontal plate part 211 whose normal line is oriented in the RL direction and extends in the FB direction, and an upper plate part 212 whose normal line is oriented in the UD direction and is connected to the upper U side end of the horizontal plate part 211. and a lower plate part 213 whose normal line faces in the UD direction and extends to the lower D side end of the horizontal plate part 211. The upper plate part 212 and the lower plate part 213 extend from the horizontal plate part 211 to the left L side. A first recess 231 is provided on the right R side side surface 211A of the horizontal plate portion 211. The first recess 231 includes an inclined surface 231A that is inclined with respect to the side surface 211A. The inclined surface 231A is inclined so that the further back B is closer to the side surface 211A. The first protrusion 131 fits into the first recess 231, and the inclined surface 131A contacts the inclined surface 231A.

The second fixing part 220 has a U-shape in a cross-sectional view perpendicular to the FB direction. For example, the second fixing part 220 includes a horizontal plate part 221 whose normal line is oriented in the RL direction and extends in the FB direction, and an upper plate part 222 whose normal line is oriented in the UD direction and is connected to the upper U side end of the horizontal plate part 221. and a lower plate part 223 whose normal line faces in the UD direction and extends to the lower D side end of the horizontal plate part 221. The upper plate part 222 and the lower plate part 223 extend from the horizontal plate part 221 to the right R side. A second recess 232 is provided on the left L-side side surface 221A of the horizontal plate portion 221. The second recess 232 includes an inclined surface 232A that is inclined with respect to the side surface 221A. The inclined surface 232A is inclined so that the further back B is closer to the side surface 221A. The second protrusion 132 fits into the second recess 232, and the inclined surface 132A contacts the inclined surface 232A.

For example, the left L side tip 212A of the upper plate part 212 and the left L side tip 222A of the upper plate part 222 face each other, and the left L side tip 213A of the lower plate part 213 and the left L side tip 222A of the upper plate part 222 face each other. The tip 222A on the right R side faces each other.

[Connector configuration]
Next, the configuration of the connector will be explained. The second connector 4 has the same configuration as the first connector 3 except for its orientation with respect to the multi-core cable 2. Therefore, here, the configuration of the first connector 3 will be explained in detail, and the explanation of the configuration of the second connector 4 will be omitted. FIG. 10 is a perspective view showing the first connector 3. 11 and 12 are cross-sectional views showing the first connector 3. FIG. FIG. 11 is a sectional view taken along the line XI-XI in FIG. 10. FIG. 12 is a sectional view taken along line XII-XII in FIG. 10.

As shown in FIGS. 10 to 12, the first convex portion 131 of the first side wall 111 fits into the first recess 231 of the first fixing portion 210, and the first fixing portion 210 and the peripheral wall portion 110 are snap-fitted together. ing. The second convex portion 132 of the second side wall 112 fits into the second recess 232 of the second fixing portion 220, and the second fixing portion 220 and the peripheral wall portion 110 are snap-fitted to each other. The rear wall 250 contacts the end of the peripheral wall 110 on the rear B side, and the opening 110X of the peripheral wall 110 is closed by the rear wall 250. The first protrusion 131 and the first recess 231 are included in the first snap-fit mechanism 31 . The second protrusion 132 and the second recess 232 are included in the second snap fit mechanism 32 .

A substrate 5 is provided within the boot 100. The multi-core cable 2 passes through the through hole 250X. The end of the multi-core cable 2 on the front F side is inside the boot 100. The outer sheath of the multi-core cable 2 is peeled off within the boot 100, and the plurality of electric wires 21 included in the multi-core cable 2 are arranged with a mold 22 in the area where the outer sheath is peeled off. A plurality of electric wires 21 are connected to the substrate 5 on the front F side of the mold 22.

The first connector 3 has a connector plug 6 inserted into the through hole 120X of the front wall portion 120. Connector plug 6 is connected to substrate 5 within boot 100.

The board 5 includes a plurality of first pads (not shown) to which the plurality of electric wires 21 are connected, a second pad (not shown) to which the connector plug 6 is connected, a plurality of first pads and a plurality of second pads. and wiring for connecting the two.

On the rear B side of the mold 22, the multi-core cable 2 is arranged between the first fixing part 210 and the second fixing part 220 in a cross-sectional view perpendicular to the FB direction, as shown in FIG. The multi-core cable 2 is arranged in the vicinity of the tip 212A of the upper plate part 212, in the vicinity of the tip 213A of the lower plate part 213, in the vicinity of the tip 222A of the upper plate part 222, and in the vicinity of the tip 223A of the lower plate part 223. Supported by That is, in a cross-sectional view perpendicular to the FB direction, the first fixing part 210 supports the multi-core cable 2 at two places, and the second fixing part 220 supports the multi-core cable 2 at two places.

An adhesive may be provided between the first fixing part 210 and the peripheral wall part 110, and an adhesive may be provided between the second fixing part 220 and the peripheral wall part 110. Further, an adhesive may be provided between the tips 212A, 213A, 222A, and 223A and the multicore cable 2.

As the material of the boot 100, for example, polycarbonate (PC) can be used. As a material for the strain relief 200, for example, polyvinyl chloride (PVC) or thermoplastic E-lastomer can be used. Preferably, the first modulus of elasticity of the material of boot 100 is higher than the second modulus of elasticity of the material of strain relief 200. This is because the strain relief 200 is more easily deformed than the boot 100 and can more easily follow the deformation of the multi-core cable 2.

In this embodiment, the first connector 3 and the second connector 4 have a boot 100 and a strain relief 200, and the strain relief 200 has a rear wall portion 250 with a through hole 250X into which the multi-core cable 2 is inserted. . Therefore, the strain relief 200 can ensure bendability, and the boot 100 can ensure strength. Further, the peripheral wall portion 110 of the boot 100 and the first fixing portion 210 of the strain relief 200 are snap-fit connected to each other by the first snap-fit mechanism 31, and the peripheral wall portion 110 and the second fixing portion 220 are connected to each other by the second snap-fit mechanism 32. are snap-fitted together. Therefore, the boot 100 and the strain relief 200 can be firmly connected. Therefore, even if, for example, stress is applied to the multi-core cable in the direction of pulling it out from the connector, separation between the boot 100 and the strain relief 200 can be suppressed. Further, the first fixing part 210 supports the multi-core cable 2 at two places, and the second fixing part 220 supports the multi-core cable 2 at two places. Therefore, fluctuations in the position of the multi-core cable 2 within the first connector 3 and the second connector 4 can be suppressed. Therefore, even if bending stress is applied to the multi-core cable 2, breakage of the multi-core cable 2 within the first connector 3 and the second connector 4 can be suppressed.

A first protrusion 131 and a second protrusion 132 are provided on the peripheral wall portion 110, a first recess 231 is provided on the first fixing portion 210, and a second recess 232 is provided on the second fixing portion 220. Therefore, the peripheral wall portion 110, the first fixing portion 210, and the second fixing portion 220 are firmly coupled.

Since the first fixing part 210 and the second fixing part 220 have a U-shape in a cross-sectional view perpendicular to the FB direction, the first fixing part 210 can easily support the multi-core cable at two locations. , the second fixing portion 220 can easily support the multi-core cable at two locations.

Since the opening 110X of the peripheral wall 110 is closed by the rear wall 250, it is possible to prevent foreign matter from entering the first connector 3 and the second connector 4 from the outside.

Since the board 5 to which one end of the multi-core cable 2 is connected is provided in the boot 100, signals and the like transmitted via the multi-core cable 2 can be routed through the board 5. If the substrate 5 is provided with a signal processing circuit or the like, signals transmitted via the multi-core cable 2 can also be processed.

Since the first connector 3 and the second connector 4 are provided with the connector plug 6 inserted into the through hole 120X, the first connector 3 and the second connector 4 can be inserted into an external device or the like using the connector plug 6.

Since the first elastic modulus of the first material of the boot 100 is higher than the second elastic modulus of the second material of the strain relief 200, it is possible to obtain superior strength from the boot 100 and obtain superior bendability from the strain relief 200. can.

[Modified example]
In the above embodiment, the first snap-fit mechanism 31 includes the first convex portion 131 provided on the first side wall 111 and the first recess 231 provided on the first fixing portion 210. Further, the second snap-fit mechanism 32 includes a second convex portion 132 provided on the second side wall 112 and a second recess 232 provided on the second fixing portion 220. On the other hand, the snap-fit mechanism may include a recess provided in the peripheral wall portion 110 of the boot 100 and a convex portion provided in the first fixing portion 210 and the second fixing portion 220 of the strain relief 200. . FIG. 13 is a sectional view showing the first connector 3 in a modified example.

In this modification, the first side wall 111 is provided with a first recess 141, the second side wall 112 is provided with a second recess 142, the first fixing part 210 is provided with a first protrusion 241, and the second fixing part is provided with a first convex part 241. A second convex portion 242 is provided at 220 . The first recess 141 of the first side wall 111 and the first protrusion 241 of the first fixing part 210 are included in the first snap fit mechanism 41 . The second recess 142 of the second side wall 112 and the second protrusion 242 of the second fixing part 220 are included in the second snap fit mechanism 42 . The first snap fit mechanism 41 has a configuration equivalent to the configuration in which the first convex portion 131 and the first concave portion 231 in the first snap fit mechanism 31 are exchanged. The second snap fit mechanism 42 has a configuration equivalent to the configuration in which the second convex portion 132 and the second concave portion 232 in the second snap fit mechanism 32 are exchanged.

This modification also provides the same effects as the above embodiment.

A combination of the first snap fit mechanism 31 and the second snap fit mechanism 42 may be provided, or a combination of the first snap fit mechanism 41 and the second snap fit mechanism 32 may be provided.

Although the embodiments have been described in detail above, they are not limited to specific embodiments, and various modifications and changes are possible within the scope of the claims. For example, the present invention is applicable not only to multi-core cables with connectors that comply with a specific standard, but also to various multi-core cables with connectors.

1: Multi-core cable with connector 2: Multi-core cable 3: First connector 4: Second connector 5: Board 6: Connector plug (insertion terminal)
21: Electric wire 22: Mold 31, 41: First snap fit mechanism 32, 42: Second snap fit mechanism 100: Boot 110: Peripheral wall portion 110X: Opening portion 111: First side wall 111A: Inner wall surface 112: Second side wall 112A :Inner wall surface 113: Third side wall 114: Fourth side wall 120: Front wall (second wall)
120X: Through hole (second through hole)
131: First convex portion 131A: Inclined surface 132: Second convex portion 132A: Inclined surface 141: First concave portion 142: Second concave portion 200: Strain relief 210: First fixing portion 211: Horizontal plate portion 211A: Side surface 212: Upper plate part 212A: Tip 213: Lower plate part 213A: Tip 220: Second fixing part 221: Horizontal plate part 221A: Side surface 222: Upper plate part 222A: Tip 223: Lower plate part 223A: Tip 231: First recessed part 231A : Inclined surface 232: Second recessed portion 232A: Inclined surface 241: First convex portion 242: Second convex portion 250: Rear wall portion (first wall portion)
250X: Through hole (first through hole)

Claims (1)

multi-core cable,
a connector having an axial direction in the longitudinal direction of the multi-core cable and connected to one end of the multi-core cable;
has
The connector is
A boot having a cylindrical peripheral wall portion having an opening at one end in the axial direction, and a second wall portion continuous to the other end of the peripheral wall portion and having a second through hole;
a strain relief connected to the one end;
an insertion terminal inserted into the second through hole;
has
a first modulus of elasticity of the first material of the boot is higher than a second modulus of elasticity of the second material of the strain relief;
The strain relief is
a first wall portion that includes a first through hole into which the multi-core cable is inserted and that closes the opening;
a first fixing part connected to the first wall and inserted into the first wall;
a second fixing part connected to the first wall, facing the first fixing part, and inserted into the first wall;
has
The peripheral wall portion has a first convex portion and a second convex portion,
The first fixing part has a first recess into which the first convex part fits,
The second fixing part has a second recess into which the second convex part fits,
In a cross-sectional view perpendicular to the axial direction,
The multi-core cable is arranged between the first fixing part and the second fixing part,
The first fixing part and the second fixing part have a U-shape,
The first fixing part supports two locations of the multi-core cable,
The second fixing portion is a multi-core cable with a connector that supports two locations of the multi-core cable.

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