JP2018026296A - Cable encapsulation structure and cable unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable suppressing position deviation generation of a shrinkable tube covering a step part formed by peeling-in-stage even when used under high temperature environment.SOLUTION: A cable unit is constituted with a cable which is constituted by having a core wire and a protective covering for covering an outer periphery thereof, has a part where the core wire is exposed by a peeling-in-stage of the protective covering and has a step part formed between the outer periphery of the protective covering and an exposed surface of the core wire, a locking member which is attached onto the outer periphery of the protective covering or is attached at a position without contact with the step part on the exposed surface of the core wire, and consists of a member having thickness in a diameter direction of the cable, and a shrinkage tube which extends to cover both of the outer periphery of the protective covering and the exposed surface of the core wire with sandwiching the step part and is arranged to cover an edge in at least a large diameter direction side of the step part of each edge of the locking member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cable sealing structure and a cable unit.

  For example, in a wire harness mounted on a vehicle such as an automobile, there is a stepped portion formed by stripping the cable, a terminal connection point, or the like in order to prevent water from being generated through a cable constituting the wire harness. The water is covered with a heat shrinkable tube coated with a hot melt adhesive on the inside (see, for example, Patent Document 1).

JP 2006-115579 A

  For cables in which the stepped part formed by stripping is covered with a heat-shrinkable tube, for example, in a test for evaluating the reliability of the cable, the cable melts when heated to such a high temperature that the hot-melt adhesive in the heat-shrinkable tube melts. Due to the fluidity of the hot melt adhesive and the action of the force that the heat-shrinkable tube shrinks, the heat-shrinkable tube may be displaced from the large diameter side to the small diameter side of the stepped portion. . Such misregistration can cause water intrusion from the stepped portion and cause a decrease in the reliability of the cable. Therefore, its occurrence should be prevented in advance.

  Therefore, the present invention provides a cable sealing structure and a cable unit that can suppress the occurrence of displacement of a shrinkable tube covering a step portion formed by stripping even when used in a high temperature environment. For the purpose.

According to one aspect of the invention,
A protective coating covering the outer periphery of the core wire and having a portion where the core wire is exposed by stepping of the protective coating, and between the outer peripheral surface of the protective coating and the exposed surface of the core wire A cable in which a stepped portion is formed;
A locking member made of a member attached on the outer peripheral surface of the protective coating or attached to a position not in contact with the stepped portion on the exposed surface of the core wire, and having a thickness in the radial direction of the cable;
It extends so as to cover both the outer peripheral surface of the protective coating and the exposed surface of the core wire across the stepped portion, and at least the edge on the large-diameter direction side of the stepped portion among the respective edges of the locking member A shrink tube arranged to cover;
A cable sealing structure is provided.

  According to the present invention, even when used in a high temperature environment, it is possible to suppress the occurrence of displacement of the shrinkable tube covering the stepped portion formed by stepping.

It is explanatory drawing which shows typically the example of schematic structure of the cable unit which concerns on one Embodiment of this invention. It is sectional drawing which shows typically the specific structural example of the cable sealing structure which concerns on one Embodiment of this invention. It is explanatory drawing which shows typically the specific example of the attachment aspect of the locking member which concerns on one Embodiment of this invention. It is sectional drawing which shows typically the specific structural example of the cable sealing structure which concerns on other embodiment of this invention.

<One Embodiment of the Present Invention>
Hereinafter, a cable sealing structure and a cable unit according to an embodiment of the present invention will be described with reference to the drawings.

(1) Schematic Configuration of Cable Unit First, the schematic configuration of the cable unit according to the present embodiment will be described.

In the present embodiment, an ABS (Antilock Brake System) sensor cable unit used in a vehicle such as an automobile is taken as an example of the cable unit.
FIG. 1 is an explanatory diagram schematically showing a schematic configuration example of an ABS sensor cable unit.

  The ABS sensor cable unit 1 includes a sensor portion (sensor head) 10 of an ABS sensor attached to one end side thereof. The sensor head 10 of the ABS sensor is arranged and used in the vicinity of the wheel (for example, the back side of the wheel) in order to measure the rotational speed of the wheel in the vehicle, and is a specific example of “electronic component” in the present invention. It is equivalent to. The details of the sensor head 10 of the ABS sensor are publicly known, and the description thereof is omitted here.

  The ABS sensor cable unit 1 includes a cable 20 extending from the sensor head 10. The cable 20 is for transmitting signals detected by the ABS sensor, and includes two core wires 21 serving as signal lines, and a protective coating (sheath) 22 covering the outer periphery of the core wires 21. It has been done. Each core wire 21 is formed by, for example, covering a conductor made of copper or a copper alloy with an insulator made of crosslinked polyethylene (XLPE). The sheath 22 is formed of, for example, a thermoplastic resin such as urethane. Here, the case where the two core wires 21 are covered with the sheath 22 is taken as an example. However, the present invention is not limited to this, and any other configuration can be used as the cable 20 as long as signal transmission is possible. Also good.

  Further, the ABS sensor cable unit 1 includes a connector portion 30 attached to the other end (one end opposite to the attachment end of the sensor head 10). The connector part 30 is connected to a wire harness on the vehicle body side in order to transmit a signal transmitted by the cable 20 to a control device (electronic control unit) provided on the vehicle body side of the vehicle.

  By the way, since the ABS sensor cable unit 1 is disposed at a location affected by rainwater, muddy water, or the like, not only the sensor head 10 of the ABS sensor but also the connector 30 and the cable 20 need to be waterproof. . From this, the connector part 30 is comprised as a waterproof connector. The details of the waterproof connector are well known, and therefore the description thereof is omitted here.

  When the connector part 30 is a waterproof connector, the cable 20 connected to the connector part 30 needs to peel off the sheath 22 and separate the core wires 21 for the sake of ensuring waterproofness. Therefore, the sheath 20 on the connector part 30 side is stripped from the cable 20. Thereby, the cable 20 has a portion where each core wire 21 is exposed from the connector portion 30 over a predetermined length, and a step portion 23 is formed between the outer peripheral surface of the sheath 22 and the exposed surface of each core wire 21. become.

  In the stepped portion 23, the gap between the sheath 22 and each core wire 21 is exposed. If the step is left as it is, there is a possibility that the gap is flooded and an electrical short circuit or the like is caused. Therefore, the ABS sensor cable unit 1 includes a contraction tube 40 extending so as to cover both the outer peripheral surface of the sheath 22 and the exposed surface of each core wire 21 with the step portion 23 interposed therebetween.

  The shrinkable tube 40 is made of a resin material such as polyolefin or polyvinyl chloride, and is formed as a heat shrinkable tube that shrinks in the radial direction when heated. Further, a hot melt adhesive (not shown in FIG. 1) made of a thermoplastic such as ethylene vinyl acetate (EVA) is applied to the inside of the shrinkable tube 40.

  In other words, the ABS sensor cable unit 1 has the stepped portion 23 formed by the shrinkable tube 40 coated with hot melt adhesive on the inside so as to fill the gap between the sheath 22 and each core wire 21 in the stepped portion 23 formed by stepping. The cable sealing structure is provided so that the stepped portion 23 is water-stopped.

  The cable sealing structure described in this embodiment is greatly characterized in that it includes a locking member 50 whose details will be described later.

(2) Detailed Configuration of Cable Sealing Structure Next, the cable sealing structure in the ABS sensor cable unit 1, that is, the cable sealing structure according to the present embodiment will be described in more detail.

(Outline of cable sealing structure)
FIG. 2 is a cross-sectional view schematically showing a specific configuration example of the cable sealing structure according to the present embodiment.
As shown in the figure, in the cable sealing structure described in the present embodiment, the step portion 23 formed by stepping is covered with a shrinkable tube 40 to which a hot melt adhesive 41 is applied.

  By the way, the cable 20 in which the step portion 23 is formed by stripping the step is provided on the small diameter side where the core wire 21 is exposed and the portion on the large diameter side covered with the sheath 22. Each part has a different outer diameter. Therefore, after the shrink tube 40 is arranged so as to cover the stepped portion 23 and the cable sealing structure is configured, for example, when the hot melt adhesive 41 in the shrink tube 40 becomes hot enough to melt, the large diameter of the cable 20 The shrinkable tube 40 that covers the side portion further shrinks, and due to the fluidity of the melted hot melt adhesive 41 and the action of the force that the shrinkable tube 40 tends to shrink, the shrinkable tube 40 moves from the large diameter side of the step portion 23. There is a risk of moving toward the small diameter side. Since the displacement of the contraction tube 40 due to such movement can lead to water intrusion from the stepped portion 23, its occurrence should be prevented in advance.

  Therefore, in the cable sealing structure described in the present embodiment, the locking member 50 is attached on the outer peripheral surface of the sheath 22. The locking member 50 is made of a member having a thickness in the radial direction of the cable 20, and is configured to have an edge that protrudes outward from the outer peripheral surface of the sheath 22. The locking member 50 is disposed at a position that is completely covered by the shrinkable tube 40. As a result, the contraction tube 40 has both end edges of the locking member 50 extending in the circumferential direction of the cable 20, in particular, end edges (on the sensor head 10 side) located on the large diameter direction side (the sensor head 10 side) of the step portion 23. Hereinafter, this edge is also referred to as “locking edge”.) 51 is covered.

  By providing such a locking member 50, in the cable sealing structure of the present embodiment, even when the hot melt adhesive 41 melts at a high temperature and the shrinkable tube 40 tries to move to the small diameter direction side of the stepped portion 23. Since the locking edge 51 of the locking member 50 serves as a resistance, the contraction tube 40 can be prevented from moving. Once contracted, the contraction tube 40 is not easily deformed in the direction in which the diameter increases, even if it contracts further. Therefore, if the locking end edge 51 becomes a resistance, the contraction tube 40 becomes difficult to move due to the resistance. Therefore, even when the fluidity of the melted hot melt adhesive 41 and the action of the force that the shrinkable tube 40 tends to shrink work, the movement of the shrinkable tube 40 can be suppressed.

(Details of locking member)
Next, the details of the locking member 50 will be described with specific examples.

  In this embodiment, as the locking member 50, for example, a tape-like member that is affixed on the outer peripheral surface of the sheath 22 is used. The tape-shaped member is formed by arranging a rubber-based adhesive on at least one surface of a tape-shaped (long belt-shaped) substrate made of polyvinyl chloride resin (PVC), for example. If such a tape-shaped member is used, the locking member 50 having the locking edge 51 can be easily formed by performing sticking using a rubber-based adhesive. Moreover, since it affixes on the outer peripheral surface of the sheath 22, the attachment position of tape-shaped member itself does not shift | deviate.

(Tape application mode)
The sticking mode of the tape-like member is not particularly limited as long as the locking edge 51 can be formed, but specifically, the following may be considered.
FIG. 3 is an explanatory view schematically showing a specific example of the attachment mode of the locking member according to the present embodiment.

  For example, the locking member (tape-like member) 50 is continuously arranged over the entire circumference in the circumferential direction of the sheath 22 as shown in FIG. With such an arrangement, the locking end edge 51 is formed over the entire circumference of the sheath 22, so that when the contraction tube 40 is restrained from moving, a resistance force is evenly generated over the entire circumference of the sheath 22. become.

When continuously arranging the tape-like member 50 in the circumferential direction of the sheath 22, as shown in FIG. 3B, the tape-like member 50 may be wound so as to extend over a plurality of circumferences.
In this case, by adjusting the number of turns of the tape-shaped member 50 to be small, it is possible to minimize the step due to the locking edge 51, thereby arranging the tape-shaped member 50. However, it can be made inconspicuous in appearance.
On the other hand, by adjusting the number of windings of the tape-like member 50 to increase, the level difference due to the locking end edge 51 increases, thereby increasing the resistance to the shrinkable tube 40. As a result, it is possible to ensure the suppression of movement.
Further, when the tape-shaped member 50 is rotated a plurality of times, if the one end edge 52 in the longitudinal direction of the tape-shaped member 50 is arranged so as to be exposed on the surface, the contraction tube 40 is arranged in the circumferential direction of the sheath 22. It can also suppress that it moves.

  When turning the tape-like member 50, as shown in FIG. 3C, it is conceivable that the tape-like member 50 is wound so that the circumferences are overlapped with each other. With such an arrangement, it is possible to suppress an increase in the application area of the tape-like member 50 on the outer peripheral surface of the sheath 22 while ensuring a sufficient step height of the locking edge 51.

  However, it is not necessarily limited to such a ticket-turning mode, and it is conceivable that the tape-like member 50 is wound by spiral winding such that only a part thereof overlaps as shown in FIG. With such an arrangement, it is possible to suppress an increase in the outer peripheral diameter of the tape-shaped member 50 while securing a stepped area of the locking edge 51.

  Moreover, the tape-shaped member 50 may be discontinuously arranged in the circumferential direction of the sheath 22, for example, as shown in FIG. 3 (e) or (f). Specifically, as shown in FIG. 3 (e), the tape-like member 50 may be attached only to a partial range in the circumferential direction of the sheath 22, or as shown in FIG. The shaped member 50 may be divided and affixed to a plurality of locations in the circumferential direction of the sheath 22. With such an arrangement, it is possible to suppress the contraction tube 40 from moving not only in the cable axis direction but also in the cable circumferential direction.

(Tape surface condition)
The tape-like member 50 stuck on the outer peripheral surface of the sheath 22 is any one of an adhesive surface, an adhesive surface, and a high friction surface on at least a part of the outer peripheral surface (that is, the surface opposite to the adhesive surface). It is preferable to have. As long as it has an adhesive surface, an adhesive surface, or a high friction surface (hereinafter simply referred to as “adhesive surface”), an unshrinked (before contraction) shrinkable tube 40 can be temporarily fixed to the adhesive surface. Thus, it is possible to suppress the occurrence of displacement of the contraction tube 40 during contraction.

  Specifically, when the shrinkable tube 40 is mounted, the unshrinked shrinkable tube 40 is inserted into the cable 20 to which the tape-like member 50 is stuck, and the shrinkable tube 40 is positioned according to the sticking position of the tape-like member 50. . And by heating the contraction tube 40 using a predetermined heating device or the like, the contraction tube 40 is contracted in the radial direction, and the hot melt adhesive 41 applied to the inside of the contraction tube 40 is melted, The step portion 23 is sealed. At this time, if the tape-like member 50 has an adhesive surface or the like, the non-shrinkable shrinkable tube 40 can be temporarily fixed at the position where it is positioned. Furthermore, by temporarily fixing the non-shrinkable contraction tube 40, it is possible to suppress the occurrence of positional deviation of the contraction tube 40 during contraction. Therefore, if the tape-like member 50 has an adhesive surface or the like, the stepped portion 23 can be easily and reliably sealed.

The formation of the adhesive surface or the like in the tape-like member 50 can be considered as follows.
For example, a double-sided tape material having adhesive surfaces on both sides is used as the tape-like member 50. In that case, while sticking on the outer peripheral surface of the sheath 22 by one adhesion surface, the shrinkable tube 40 is temporarily fixed by the other adhesion surface. That is, by using the double-sided tape material, both the application to the sheath 22 and the temporary fixing of the shrinkable tube 40 can be performed very simply.
Alternatively, for example, as the tape-like member 50, a single-sided tape material having an adhesive surface on one side may be used, and a part of the single-sided tape material may be folded back. In that case, the portion of the adhesive surface that is folded back and exposed to the outer peripheral side is used to temporarily fix the shrinkable tube 40. Thus, by using the single-sided tape material in a folded state, both the application to the sheath 22 and the temporary fixing of the shrinkable tube 40 can be performed together, and the adhesive surface of the tape-like member 50 and the like are formed. Parts cost can be reduced.

(Tape color)
The tape-like member 50 affixed on the outer peripheral surface of the sheath 22 is preferably given a color different from the color of the attached surface of the tape-like member 50 (that is, the outer peripheral surface of the sheath 22). This is because the presence of the tape-like member 50 can be easily visually confirmed.

  Specifically, if different colors are given to the tape-like member 50 and the sheath 22, for example, whether or not the tape-like member 50 is adhered to the sheath 22 before the contraction tube 40 is inserted, That is, it is possible to easily confirm whether or not the tape-like member 50 is forgotten. Further, for example, after insertion of the contraction tube 40, whether or not the tape-like member 50 is completely covered by the contraction tube 40, that is, whether or not the contraction tube 40 is attached at a correct position. You will be able to easily check.

  In this way, if the color of the tape-like member 50 is different from the color of the sheath 22, the tape-like member 50 has a function of preventing the occurrence of displacement of the shrinkable tube 40 and the mounting position of the shrinkable tube 40. It also has a function as a landmark. Therefore, by having these functions together, it is possible to suppress the occurrence of product defects in the ABS sensor cable unit 1 and to easily detect the occurrence of product defects.

(3) Effects According to the Present Embodiment According to the present embodiment, one or a plurality of effects described below are exhibited.

(A) In the present embodiment, a locking member (tape-shaped member) 50 is attached on the outer peripheral surface of the sheath 22, and the shrinkable tube 40 is covered so as to cover the locking edge 51 of the locking member 50. Is arranged. Therefore, even if the hot melt adhesive 41 melts at a high temperature and the contraction tube 40 tries to move to the small diameter direction side of the stepped portion 23, the engagement edge 51 of the engagement member 50 becomes a resistance. Can be prevented from moving.
That is, according to this embodiment, even if it is a case where it is used in a high temperature environment, generation | occurrence | production of position shift of the shrinkable tube 40 which covers the level | step-difference part 23 formed by stepping can be suppressed. Therefore, it is possible to prevent water from entering the step portion 23 due to the occurrence of the displacement of the contraction tube 40, and to keep the cable reliability sufficiently high when the ABS sensor cable unit 1 is configured. it can.

(B) In this embodiment, since the locking member 50 is configured by sticking a tape-shaped member, the configuration of the locking member 50 and the locking edge 51 can be performed very easily and simply. In connection with this, the effect of suppressing the cable manufacturing cost can also be expected.

(C) Further, when the tape-like member 50 is used, the appearance is not conspicuous even if the tape-like member 50 is arranged by appropriately adjusting the sticking mode (in particular, the number of windings and the winding method). Or to increase the resistance to the contraction tube 40, or to suppress the movement of the contraction tube 40 in the circumferential direction of the cable. Therefore, it is possible to flexibly cope with various cable configurations. it can.

(D) In the present embodiment, since an adhesive surface or the like is provided on at least a part of the outer peripheral surface of the tape-like member 50, a non-shrinkable (before contraction) contraction tube 40 is temporarily attached to the adhesive surface or the like. It can fix, it becomes possible to suppress generation | occurrence | production of position shift of the shrinkable tube 40 at the time of shrinkage | contraction, and the level | step-difference part 23 can be easily and reliably sealed by the shrinkable tube 40 now.

(E) In the present embodiment, the tape-like member 50 is given a color different from the color of the outer peripheral surface of the sheath 22 that is the attachment surface of the tape-like member 50. Therefore, the tape-like member 50 has a function as a mark of the mounting position of the contraction tube 40 in addition to the function of preventing the position shift of the contraction tube 40. The occurrence of defects can be suppressed, and even if a product defect occurs, it can be easily detected.

(F) In the present embodiment, since the hot melt adhesive 41 is applied to the inside of the shrinkable tube 40, the stepped portion 23 can be reliably sealed. Further, when the hot melt adhesive 41 is present, the shrinkage tube 40 is likely to be displaced in a high temperature environment where the hot melt adhesive 41 melts. In addition, since the locking edge 51 of the locking member (tape-shaped member) 50 becomes a resistance, the occurrence of displacement of the shrinkable tube 40 can be suppressed.

<Other Embodiments of the Present Invention>
Although one embodiment of the present invention has been specifically described above, the technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. is there.

(Other examples of tape application positions)
In the above-described embodiment, the case where the locking member (tape-like member) 50 is attached on the outer peripheral surface of the sheath 22 is described as an example, but the present invention is not limited to this. That is, the locking member (tape-shaped member) 50 may be attached to another position as long as the locking end edge 51 becomes a resistance and the occurrence of displacement of the shrinkable tube 40 can be suppressed.

FIG. 4 is a cross-sectional view schematically showing a specific configuration example of a cable sealing structure according to another embodiment.
In the illustrated cable sealing structure, a locking member (tape-like member) 50 is attached on the exposed surface of the core wire 21. However, the tape-like member 50 has a position where it does not contact the stepped portion 23 on the exposed surface of the core wire 21, that is, an interval at which the exposed surface is exposed from the stepped portion 23 toward the small diameter direction side (connector portion 30 side). It shall be installed in the secured position. If it is such a position, about the latching edge 51 located in the large diameter direction side (sensor head 10 side) of the level | step-difference part 23 among the both-ends edge extended in the cable circumferential direction of the tape-shaped member 50, a level | step difference part will be provided. 23 will not abut.
And the shrinkable tube 40 which covers the level | step-difference part 23 is distribute | arranged so that the latching edge 51 in the tape-shaped member 50 may be covered at least. In the illustrated example, the contraction tube 40 covers not only the locking end edge 51 but also the edge facing the locking end edge 51. However, the present invention is not necessarily limited to this, and at least the locking end. It is only necessary to cover the edge 51.

  Even in the cable sealing structure configured as described above, the hot melt adhesive 41 melts at a high temperature, and the shrinkable tube 40 is attached to the exposed surface of the core wire 21 even if the shrinkable tube 40 tries to move to the small diameter direction side of the step portion 23. Since the latching edge 51 of the latching member (tape-shaped member) 50 becomes resistance, it can suppress that the shrinkable tube 40 moves.

(Other examples of locking members)
Moreover, although the case where the locking member 50 was comprised by sticking of a tape-shaped member was mentioned as an example in embodiment mentioned above, this invention is not limited to this. That is, if the locking member 50 is attached to the outer peripheral surface of the sheath 22 or the exposed surface of the core wire 21 and can form the locking end edge 51 that serves as a resistance to movement of the contraction tube 40, for example, an elastic member is used. It may be constituted by a member of another material or shape such as a ring-shaped member made of a material.

(Other examples of electronic components)
In the above-described embodiment, the case where the present invention is applied to the ABS sensor cable unit 1 including the sensor head 10 of the ABS sensor is described as an example. However, the present invention is not limited to this. That is, in the present invention, if the cable unit is configured to secure waterproofness, dustproofness, etc. using the shrinkable tube 40, a sensor for measuring other physical quantities and other known electronic components are connected. Even if it is made, it can be applied in exactly the same way, and the use of the cable unit is not particularly limited.

  DESCRIPTION OF SYMBOLS 1 ... Cable unit for ABS sensors, 10 ... Sensor head (electronic component), 20 ... Cable, 21 ... Core wire, 22 ... Sheath (protective coating), 23 ... Step part, 30 ... Connector part, 40 ... Contraction tube, 41 ... Hot-melt adhesive, 50 ... locking member (tape-shaped member), 51 ... locking edge

Claims (10)

A protective coating covering the outer periphery of the core wire and having a portion where the core wire is exposed by stepping of the protective coating, and between the outer peripheral surface of the protective coating and the exposed surface of the core wire A cable in which a stepped portion is formed;
A locking member made of a member attached on the outer peripheral surface of the protective coating or attached to a position not in contact with the stepped portion on the exposed surface of the core wire, and having a thickness in the radial direction of the cable;
It extends so as to cover both the outer peripheral surface of the protective coating and the exposed surface of the core wire across the stepped portion, and at least the edge on the large-diameter direction side of the stepped portion among the respective edges of the locking member A shrink tube arranged to cover;
A cable sealing structure comprising: The cable sealing structure according to claim 1, wherein the locking member is formed of a tape-like member that is attached to the outer peripheral surface or the exposed surface. The cable sealing structure according to claim 2, wherein the locking member is continuously arranged over the entire circumference in the circumferential direction of the protective coating or the core wire. The cable sealing structure according to claim 2, wherein the locking member is discontinuously arranged in a circumferential direction of the protective coating or the core wire. The cable sealing structure according to any one of claims 2 to 4, wherein the locking member has any one of an adhesive surface, an adhesive surface, and a high friction surface on at least a part of the outer peripheral surface. The cable sealing structure according to claim 5, wherein the locking member is made of a double-sided tape material having adhesive surfaces on both sides. The cable sealing structure according to claim 5, wherein the locking member is arranged by folding back a single-sided tape material having an adhesive surface on one side. The cable sealing structure according to any one of claims 1 to 7, wherein the locking member has a color different from a color of a surface to be attached. The cable sealing structure according to any one of claims 1 to 8, wherein a hot melt adhesive is applied to the inside of the shrinkable tube. A protective coating covering the outer periphery of the core wire and having a portion where the core wire is exposed by stepping of the protective coating, and between the outer peripheral surface of the protective coating and the exposed surface of the core wire A cable in which a stepped portion is formed;
A locking member made of a member attached on the outer peripheral surface of the protective coating or attached to a position not in contact with the stepped portion on the exposed surface of the core wire, and having a thickness in the radial direction of the cable;
It extends so as to cover both the outer peripheral surface of the protective coating and the exposed surface of the core wire across the stepped portion, and at least the edge on the large-diameter direction side of the stepped portion among the respective edges of the locking member A shrink tube arranged to cover;
An electronic component connected to the side of the cable covered with the protective coating;
A connector portion connected to a side where the core wire of the cable is exposed;
Cable unit with

Images