TWI542101B - Cable with connector - Google Patents

Description

Cable with connector

The present invention relates to a cable with a connector.

A molded article in which a metal terminal is formed by a resin and is overmolded by a resin so as to surround the product is known (for example, see Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-15618

When the connector is mounted on the end of the cable including the plurality of signal wires, it is required that the plurality of signal wires are electrically connected to the terminals of the connector side by side at a predetermined interval. However, it is difficult to perform the following operations: the plurality of signal wires exposed from the outside at the end of the cable are arranged side by side at a predetermined pitch, and when the state is maintained, the plurality of signal wires are collectively connected to the substrate, etc. Terminal.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cable having a connector having a configuration in which a plurality of root signals are arranged side by side at a predetermined interval so that the connector can be easily assembled.

A cable with a connector that solves the above problems is housed inside the outer cover a cable having a plurality of wires for a signal signal, and a connector connected to an end of the cable; the connector having a wire fixing portion and a terminal portion connected to each other; and the plurality of wires for the signal are attached to the outer cover a portion in which the distal end extends outward in a planar manner, and the first resin covering the distal end portion of the electric wire fixing portion covers a portion other than the distal end portion, and is maintained in a side-by-side state; and the terminal portion has the plurality of signals a planar circuit portion electrically connected by a wire, and a plug portion including a plurality of electrical contacts arranged in parallel and connected to a connection end of the cable having the connector, wherein each of the electrical contacts is electrically connected to the planar circuit portion; The wire fixing portion and the planar circuit portion are covered by the second resin.

The connector cable of the present invention can easily assemble the connector in a state where the plurality of signal wires are side by side at a predetermined interval.

1, 1a, 1b‧‧‧Connector cable

2‧‧‧ cable

3‧‧‧Connector

4‧‧‧ plug part

5‧‧‧Second resin

6‧‧‧Lighting Department

6a‧‧‧Lighting parts

6b‧‧‧Light pipe

7‧‧‧Wire fixing department

8‧‧‧ Terminals

11‧‧‧First resin

11a‧‧‧ slot

13‧‧‧ Third resin

21‧‧‧ Signal wire

21a‧‧‧Center conductor

21b‧‧‧Internal insulation

21c‧‧‧External conductor

21d‧‧‧covered layer

22‧‧‧Insulated wires

24‧‧‧General shield

24a‧‧‧Wire

25‧‧‧External

41‧‧‧Connector cover (metal case)

41a‧‧‧ Backend

41b‧‧‧ side

71‧‧‧second substrate

71a‧‧‧ pads

71b‧‧‧insulated wire

72‧‧‧ recess

81‧‧‧Flat Circuit Division

83‧‧‧Electrical contacts

131‧‧‧ recess

811‧‧‧ first substrate

811a‧‧‧ Signal pad

811b‧‧‧ Grounding mat

811c‧‧‧Lighting power supply pad

Fig. 1 is a perspective view showing an embodiment of a cable having a connector.

Figure 2 is a cross-sectional view showing the cable portion of Figure 1.

Fig. 3 is a perspective view showing a state before the wire fixing portion is connected to the terminal portion in the step of manufacturing the cable with the connector of Fig. 1.

4 is a plan view showing a planar circuit portion of a terminal portion.

Fig. 5 is a perspective view showing a state in which the wire fixing portion is connected to the terminal portion in the step of manufacturing the cable with the connector of Fig. 1;

Fig. 6 is a perspective view showing a state in which the second substrate is mounted in the step of manufacturing the cable with the connector of Fig. 1.

Fig. 7 is a perspective view showing a state in which the second substrate is electrically connected in the step of manufacturing the cable with the connector of Fig. 1.

Fig. 8 is a perspective view showing a state in which the light-emitting element has been mounted on the second substrate in the step of manufacturing the cable with the connector of Fig. 1.

Fig. 9 is a perspective view showing a state in which the planar circuit portion has been covered with the third resin in the step of manufacturing the cable with the connector of Fig. 1.

Fig. 10 is a view showing a cable having a connector different from the embodiment of Fig. 1, and showing a state in which the second resin is removed.

Fig. 11 is a perspective view showing a state in which the second substrate is mounted on the third resin.

[Summary of Embodiments of the Present Invention]

An embodiment of a cable with a connector according to the present invention is a cable having a connector having a cable for accommodating a plurality of signal wires on an inner side of the outer cover, and an end connected to the cable The connector has a wire fixing portion and a terminal portion that are connected to each other; and the plurality of signal wires are in a state in which the portions extending outward from the end of the outer cover are arranged side by side at a predetermined pitch. The first resin covering the wire fixing portion covers a portion other than the front end portion and maintains a side-by-side state; the terminal portion has a planar circuit electrically connected to the plurality of signal wires And a plug portion including a plurality of electrical contacts arranged side by side and connected to the connection end of the cable having the connector, wherein each of the electrical contacts is electrically connected to the planar circuit portion, and the wire fixing portion and the planar circuit portion Covered by a second resin.

According to the configuration of (1), the portions of the plurality of signal wires that are externally terminated from the end of the cable are covered with the first resin constituting the wire fixing portion in a state in which the predetermined pitch is arranged in a plane. Thereby, when the plurality of root signals are connected to the planar circuit portion by wires, it is possible to easily perform the collective connection while maintaining the predetermined pitch. Further, the planar circuit portion to which the signal wire is connected is covered with the second resin together with the wire fixing portion to be protected.

(2) The cable with a connector according to (1), wherein the plurality of signal wires and the planar circuit portion are covered with a third resin; and the third resin is covered by the second resin.

According to the configuration of (2), the planar circuit portion and the plurality of signal wires connected to the planar circuit portion are covered with the third resin, so that the connection portion between the plurality of signal wires and the planar circuit portion is protected, and Maintain the connection status. Further, the third resin is covered with the second resin together with the first resin (wire fixing portion), thereby providing a connector structure that is integrally protected.

(3) The cable with a connector according to (2), wherein one of the first resin and the third resin is an ultraviolet curable resin, and the other is a thermoplastic resin.

According to the configuration of (3), one is cured by irradiation with ultraviolet rays, and the other is hardened by cooling a resin having a high temperature. That is, since the hardening methods of the two are different, the resin molded first is not easily affected by ultraviolet rays or heat at the time of molding.

(4) The cable with a connector according to (2), wherein both the first resin and the third resin are ultraviolet curable resins.

According to the configuration of (4), since it can be hardened by irradiation with ultraviolet rays, it is difficult to generate heat when the resin is molded.

(5) The connector cable according to (2), wherein the first resin is Both of the third resins are thermoplastic resins, and the melting point of the third resin is lower than the melting point of the first resin.

According to the configuration of (5), when the wire is fixed to the wire fixing portion (the first resin is cooled and solidified) and then molded into the third resin, the resin constituting the wire fixing portion is less likely to be softened by the heat of the third resin.

(6) The connector cable according to (1), wherein the planar circuit portion includes a first substrate and a circuit formed on both sides of the first substrate; and the electric wire including the signal wire is divided into two One group of the two groups is connected to one surface of the first substrate, and the other of the two groups is connected to the other surface of the first substrate.

According to the configuration of (6), even if the electric wires including the plurality of electric wires for electric wires are divided into two groups and arranged side by side, the electric wire fixing portion composed of the first resin is stably maintained in the aligned state, and the first substrate can be Both sides are configured at the correct spacing and are collectively connected to the circuit.

(7) The cable with a connector according to (1), wherein the cable has an overall shielding layer covering a plurality of the signal wires, and has a groove on the outer surface of the first resin, which is twisted The collective shielding layer is embedded in the groove, and the collective shielding layer is passed through the outer surface of the first resin to be connected to the ground circuit of the planar circuit portion or the outer cover of the plug portion.

According to the configuration of (7), a portion of the total shield layer that extends outward from the end of the cable can be housed and held in the groove of the wire fixing portion, and the shield of the cable can be connected to the wire. Ground circuit.

(8) The cable of the connector according to (1), wherein the planar circuit portion includes a first substrate electrically connected to the plurality of signal wires; the connector further has a second substrate; and the second substrate Electrically connected to the first substrate.

According to the configuration of (8), the second substrate is different from the first substrate to which the signal wire is connected, and can also be used for purposes other than signal transmission, so that a multifunctional connector cable can be provided.

(9) The connector cable according to (8), wherein the second substrate is disposed on the first resin and covered by the second resin.

According to the configuration of (9), the second substrate can be disposed outside the portion where the signal wire is fixed, and the second substrate can be covered by the second resin to be protected.

(10) The connector cable according to (2), wherein the planar circuit portion includes a first substrate electrically connected to the plurality of signal wires, and the connector further includes a second substrate, the second substrate The first substrate is electrically connected to the first substrate, and is disposed on the third resin and covered by the second resin.

According to the configuration of (10), the second substrate can be disposed outside the portion where the signal wire is connected to the planar circuit portion, and the second substrate can be covered by the second resin to be protected.

(11) The cable with a connector according to (9) or (10), wherein the second substrate is provided with a light-emitting portion.

According to the configuration of (11), the connector can be made to have a light-emitting function.

(12) The cable with a connector according to (11), wherein the light-emitting portion is exposed on a surface of the connector.

According to the configuration of (12), the second substrate is covered with the second resin, but the light-emitting portion is exposed, so that the light-emitting state can be surely observed.

[Details of Embodiments of the Present Invention]

Hereinafter, an example of an embodiment of a cable having a connector will be described with reference to the drawings. In addition, the invention is not limited to the examples, but is disclosed by the scope of the patent application, and is intended to include the same meaning as the scope of the claims and all modifications within the scope of the claims.

[First Embodiment]

Fig. 1 is a perspective view showing the appearance of a cable with a connector according to a first embodiment.

As shown in FIG. 1, the cable 1 with a connector has a cable 2 and a connector 3. The connector 3 is connected to the end of the cable 2. The plug portion 4 is provided at the front end of the connector 3, and the rear side of the connector 3 is covered by the second resin 5 on the rear side. The plug portion 4 is connected to a portion of the connection end (socket or the like) of the cable 1 having the connector. Moreover, the connector 3 has a light emitting portion 6. A portion of the light-emitting portion 6 is not covered by the second resin 5 and is exposed on the surface of the connector 3.

2 is a cross-sectional view of the cable 2.

As shown in Fig. 2, the central portion of the cross section of the cable 2 has a plurality of (16 in this example) signal wires 21. In addition to the signal wire 21, the cable 2 has an insulated wire 22 for a power supply wire or a ground wire. The signal wire 21 and the insulated wire 22 are collectively covered by the collective shield layer 24. The collective shield layer 24 is covered by the outer cover 25.

The signal wire 21 of this example preferably has a center conductor 21a and internal insulation. A coaxial wire of the layer 21b, the outer conductor 21c, and the covering layer 21d. The signal wire 21 may be an insulated wire composed of a center conductor and a coating layer. The signal wire 21 transmits the differential signal, for example, one by one.

The collective shield layer 24 can be formed by grouping or lateral winding using a plurality of wires such as tinned soft copper wires. The outer layer 25 is formed of an insulating resin such as polyvinyl chloride.

The internal structure of the cable 2 and the connector 3 is shown in FIG.

As shown in FIG. 3, at the end of the cable 2, the outer cover 25 is removed by a predetermined length, and the signal wire 21 is extended outward from the cable 2 by 25 and exposed. At the exposed portion, the front end of the signal electric wire 21 is subjected to end treatment so that the center conductor 21a or the outer conductor 21c is exposed in stages. Further, a portion other than the front end portion of the exposed portion of the signal electric wire 21 is covered by the first resin 11 constituting the electric wire fixing portion 7. When the cable 2 includes the insulated electric wire 22 for use other than the signal line (power supply use, etc.), the insulated electric wire 22 is also processed in parallel with the end of the center conductor, and is covered by the first resin 11. FIG. 3 shows an example in which the signal electric wires 21 are arranged side by side in the upper stage and the insulated electric wires 22 are arranged side by side in the lower stage.

The signal wire 21 may be such that the portion extending from the outside of the cable 2 to the outside by two is divided into two groups and arranged side by side at a predetermined pitch, and the respective groups are arranged in parallel.

The signal wires 21 are molded by the first resin 11 in a state in which they are arranged side by side in a predetermined arrangement. The signal wire 21 (and the insulated wire 22) is covered with the first resin 11, whereby the alignment state is fixed.

The material of the first resin 11 constituting the electric wire fixing portion 7 is an ultraviolet curable resin or a thermoplastic resin. For example, it is composed of an urethane acrylate resin or an epoxy acrylate resin. An ultraviolet curable resin or a thermoplastic resin composed of polyester, polyolefin or polyamide.

Further, a concave portion 72 for arranging the second substrate 71 and the light-emitting portion 6 to be described later is formed on one surface (upper surface in this example) above and below the electric wire fixing portion 7.

As shown in FIG. 3, the terminal portion 8 of the connector 3 has a planar circuit portion 81 and a plug portion 4. The planar circuit portion 81 is electrically connected to the signal electric wire 21 or the insulated electric wire 22. The plug portion 4 is connected to a portion of the connector 1 having the connector 1 of the connector. A planar circuit portion 81 is inserted and connected to the rear side of the plug portion 4. A plurality of electrical contacts 83 are arranged side by side on the rear side of the plug portion 4. The plurality of electrical contacts 83 are electrically connected to the circuit of the planar circuit portion 81.

4 is a plan view showing the planar circuit portion 81.

As shown in FIG. 4, the planar circuit portion 81 includes a first substrate 811 and a circuit formed on both sides of the first substrate 811.

The circuit formed on the first substrate 811 includes a signal pad 811a, a ground pad 811b, and a light-emitting power supply pad 811c. 4 shows a circuit of one surface (upper surface) of the first substrate 811, and the circuit configuration of the other surface (lower surface) of the first substrate 811 is also substantially the same. When the wire connected to the lower surface is only an insulated wire, the pad for the insulated wire is placed at the position of the signal pad, and the grounding pad 811b is not required.

A plurality of signal pads 811a are formed side by side so as to correspond to the signal wires 21. The center conductor 21a of each of the signal wires 21 is electrically connected to the signal pad 811a of the first substrate 811 by soldering. When the first substrate 811 is inserted into the plug portion 4 (see FIG. 3) from the rear, each of the signal pads 811a is in contact with and electrically connected to each of the electrical contacts 83 of the plug portion 4. The plug-side front end of the signal pad 811a can also be used as the electrical contact 83.

The ground pad 811b is formed to extend in the direction in which the signal wires 21 are arranged side by side. Welding In the manner of connection, the external conductor 21c of each of the signal wires 21 is electrically connected to the ground pad 811b.

The circuit of the planar circuit unit 81 also has a light-emitting power supply pad 811c for supplying power to the light-emitting unit 6 to be described later.

Next, a manufacturing procedure after the step of connecting the electric wire fixing portion 7 of the cable 1 of the connector of the present embodiment to the terminal portion 8 will be described with reference to Figs. 3 to 9 .

First, the planar circuit portion 81 of the terminal portion 8 is inserted between the signal electric wires 21 and the insulated electric wires 22 which are disposed in two groups above and below the electric wire fixing portion 7 in the direction of the arrow in FIG. status. In the state of FIG. 5, each electric wire is welded to the planar circuit portion 81.

Specifically, the center conductor 21a of each of the signal wires 21 is soldered to the signal pads 811a on both sides of the first substrate 811. Then, the outer conductor 21c of each of the signal wires 21 is soldered to the ground pad 811b.

As described above, the wire fixing portion 7 and the terminal portion 8 are electrically connected to each other. Further, even if the plurality of root signal wires 21 and the insulated wires 22 are divided into two groups and arranged side by side as in the present example, the wire fixing portion 7 made of the first resin can stably maintain the arrangement state thereof, and The two sides of the first substrate 811 can be disposed at the correct pitch, thereby being collectively connected to the circuit.

Then, as shown in FIG. 6, the second substrate 71 is placed in the concave portion 72 of the electric wire fixing portion 7. The second substrate 71 is, for example, a printed substrate, and includes, for example, a light-emitting component 6a such as an LED as a part of the light-emitting portion 6, a circuit component such as a resistive element, and a pad 71a.

Then, as shown in FIG. 7, the pad 71a of the second substrate 71 is electrically connected to the circuit of the planar circuit portion 81 by the insulated wire 71b.

Further, as shown in FIG. 8, a light-emitting component 6a as a part of the light-emitting portion 6 is mounted on the second substrate 71, and a light guide tube that guides light to the outside is mounted on the second substrate 71 (for example, plastic Glued light pipe) 6b.

Then, as shown in FIG. 9, the third resin 13 is molded so as to cover one of the planar circuit portion 81 and the second substrate 71. Further, the second resin 5 is molded around the film, and the shape shown in Fig. 1 is obtained. Thereby, the wire fixing portion 7 and the terminal portion 8 are integrated. The electric wires (the signal electric wires 21 and the insulated electric wires 22) of the planar circuit portion 81 and the portion connected to the planar electric circuit portion 81 are covered by the third resin 13, so that the connection portions between the electric wires and the planar electric circuit portion 81 are protected. And can maintain the connection state. Further, the third resin 13 is covered with the second resin 5 together with the electric wire fixing portion 7 composed of the first resin 11, and is integrally connected to the connector structure.

Further, the second resin 5 is formed such that the upper surface of the light-emitting portion 6 (the upper surface of the light guide tube 6b) is exposed on the surface of the connector 3, and the front end portion of the plug portion 4 is not covered.

Further, the materials of the first resin 11 and the third resin 13 can be appropriately selected from an ultraviolet curable resin and a thermoplastic resin.

For example, when one of the first resin 11 and the third resin 13 is an ultraviolet curable resin and the other is a thermoplastic resin, one is hardened by irradiating ultraviolet rays after filling the resin in a transparent mold, and the other is hardened. The resin is cured by filling a high-temperature resin in a mold and then cooling it. Since the resin having different characteristics is used, the resin molded first is not easily affected by ultraviolet rays or heat at the time of molding.

Further, when both of the first resin 11 and the third resin 13 are ultraviolet curable resins, they can be hardened by irradiation with ultraviolet rays, respectively, so that heat is less likely to occur in the planar circuit portion 81 or the plug portion 4 when the resin is molded. problem.

Further, when both the first resin 11 and the third resin 13 are thermoplastic resins, it is preferable that the melting point of the third resin 13 is lower than the melting point of the first resin 11. By this, when the electric wire fixing portion 7 (curing and solidifying the first resin 11) is molded into the third resin 13, the resin constituting the electric wire fixing portion 7 is less likely to be softened by the heat of the third resin 13.

As described in the above detailed description, in the cable 1 with a connector of the present embodiment, the portion of the plurality of signal wires 21 that extends outward from the end of the cable 2 outside the cable 2 is at a predetermined pitch. The first resin 11 constituting the electric wire fixing portion 7 is covered in a state of being planarly arranged side by side.

Thereby, when the plurality of root signal wires 21 are connected to the planar circuit portion 81, it is possible to easily perform the collective connection while maintaining a predetermined pitch. Further, the planar circuit portion 81 to which the signal electric wire 21 is connected is covered by the second resin 5 together with the electric wire fixing portion 7, and is protected.

Further, the cable 1 with a connector of the present embodiment includes a second substrate 71 which is different from the first substrate 811 to which the signal wire 21 is connected, and which can also be used for purposes other than signal transmission. By providing the second substrate 71, it is possible to provide a multi-functional cable 1 with a connector. In this example, the light-emitting portion 6 is mounted on the second substrate 71, and has a light-emitting function. The second substrate 71 is disposed on the outer surface of the electric wire fixing portion 7 to which the signal electric wire 21 is fixed, and is covered by the second resin 5 to be protected, and the light emitting portion 6 (light guide tube 6b) is easily exposed outside the connector. surface. Thereby, the light-emitting state of the light-emitting portion 6 can be surely observed in a state where the first substrate 811 or the second substrate 71 is surely protected.

[Second Embodiment]

Next, a cable having a connector according to the second embodiment will be described with reference to Fig. 10 . Further, the same components as those of the cable 1 having the connector according to the first embodiment described above are provided. The same symbols are attached and the description thereof is omitted.

As shown in Fig. 10, in the cable 1a with a connector of the second embodiment, a groove 11a is provided on the outer surface of the first resin 11, and the total shielding layer 24 is externally terminated from the end of the cable 2 by 25 The extended portion of the wire 24a is twisted into a bundle and then embedded in the groove 11a. The twisted wire 24a is connected to a ground circuit (for example, a ground pad 811b) of the first substrate 811 of the planar circuit portion 81. Thereby, the cable 2 is connected to the outer cover of the connector 3. Further, the third resin 13 is molded around the planar circuit portion 81 so as to cover the bundled wire 24a or the welded portion.

Further, when the plug portion 4 has the connector housing (metal case) 41, the wire 24a of the collective shielding layer 24 may be joined to the rear end 41a or the side surface 41b of the connector housing 41 by soldering.

According to the cable 1a with a connector according to the second embodiment, the collective shield layer 24 passes through the outer surface of the first resin 11 and is connected to the ground pad 811b of the planar circuit portion 81 or the connector housing 41 of the plug portion 4. . When the twisting of the shield layer 24 is made, the outer diameter of the shield layer 24 is not necessarily constant, and if it is directly molded, burrs are sometimes generated. However, in the present invention, since the end portion of the collective shield layer 24 is housed and held in the groove 11a, no burr is generated when the collective shield layer is molded.

[Third embodiment]

Next, a cable having a connector according to a third embodiment will be described with reference to Fig. 11 . The same components as those of the cable 1 having the connector according to the first embodiment described above are denoted by the same reference numerals and the description thereof will not be repeated.

As shown in FIG. 11, the cable 1b with a connector of the third embodiment is a form in which the second substrate 71 is attached to the third resin 13. In the embodiment of Fig. 11, the second substrate 71 is disposed on both the first resin 11 and the third resin 13.

In the cable 1b with a connector of the third embodiment, the third resin 13 is formed with a concave portion 131 so as to open the upper side of the light-emitting power supply pad 811c of the first substrate 811 of the planar circuit portion 81. Then, the second substrate 71 and the circuit of the planar circuit portion 81 are electrically connected by the insulated wire 71b through the concave portion 131.

According to the cable 1b with a connector according to the third embodiment, the second substrate 71 can be disposed at a position outside the portion where the signal wire 21 is connected to the planar circuit portion 81, and the second substrate 71 can also be Covered by the second resin 5 to be protected.

2‧‧‧ cable

4‧‧‧ plug part

7‧‧‧Wire fixing department

8‧‧‧ Terminals

11‧‧‧First resin

21‧‧‧ Signal wire

21a‧‧‧Center conductor

21c‧‧‧External conductor

22‧‧‧Insulated wires

72‧‧‧ recess

81‧‧‧Flat Circuit Division

83‧‧‧Electrical contacts

811‧‧‧ first substrate

811a‧‧‧ Signal pad

811b‧‧‧ Grounding mat

Claims (12)

A cable having a connector having a cable for accommodating a plurality of signal wires on an inner side of the outer cover, and a connector connected to an end of the cable; the connector having interconnecting wire fixing portions And the terminal portion; the plurality of signal electric wires are arranged in a planar shape at a predetermined pitch in a portion extending outward from the end of the outer cover, and the signal wire is covered by the first resin constituting the electric wire fixing portion a portion other than the front end portion and maintaining the side-by-side state; the terminal portion having a planar circuit portion electrically connected to the plurality of signal wires, and a cable including a plurality of electrical contacts arranged side by side and connected to the connector The plug portion of the connection end of the wire is electrically connected to the planar circuit portion, and the wire fixing portion and the planar circuit portion are covered by the second resin. The cable of the connector of claim 1, wherein the plurality of signal wires and the planar circuit portion are covered by a third resin; and the third resin is covered by the second resin. The cable of the connector of claim 2, wherein one of the first resin and the third resin is an ultraviolet curable resin, and the other is a thermoplastic resin. A cable having a connector according to the second aspect of the invention, wherein the first resin and the third resin are both ultraviolet curable resins. The cable of the connector of claim 2, wherein both the first resin and the third resin are thermoplastic resins, and a melting point of the third resin is lower than a melting point of the first resin. The cable of the connector of claim 1, wherein the planar circuit portion includes a first substrate and a circuit formed on both sides of the first substrate; and the plurality of wires including the signal wires are divided into two One group is arranged side by side, one of the two groups is connected to one surface of the first substrate, and the other of the two groups is connected to the other surface of the first substrate. The cable of the connector of claim 1, wherein the cable has an overall shielding layer covering a plurality of the signal wires, and has a groove on the outer surface of the first resin, and is twisted The collective shielding layer is fitted into the groove, and the collective shielding layer is passed through the outer surface of the first resin to be connected to the ground circuit of the planar circuit portion or the outer cover of the plug portion. The cable of the connector of claim 1, wherein the planar circuit portion includes a first substrate electrically connected to the plurality of signal wires; the connector further has a second substrate; and the second substrate Electrically connected to the first substrate. The cable of the connector of claim 8, wherein the second substrate is disposed on the first resin and covered by the second resin. The cable of the connector of claim 2, wherein the planar circuit portion includes a first substrate electrically connected to the plurality of signal wires; the connector further has a second substrate; and the second substrate The first substrate is electrically connected to the first substrate, and is disposed on the third resin and covered by the second resin. A cable having a connector according to claim 9 or 10, wherein the second base is The board is equipped with a light emitting unit. The cable of the connector of claim 11, wherein the light emitting portion is exposed on a surface of the connector.