JP2013217682A - Structure for mounting current sensor on battery cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for mounting a current sensor on a battery cable, in which installation on the battery cable of the current sensor is made simpler than before.SOLUTION: A structure 1 for mounting a current sensor on a battery cable includes: a housing 5 in which a current detection part 11 to detect a current flowing through a battery cable 9 is provided; and a holder 7 which is constituted by having a holder body 43 and a shield material 45 provided in this holder body, installed in the housing 5 and sandwiches and holds the battery cable 9 in cooperation with the housing 5.

Description

  The present invention relates to a current sensor mounting structure to a battery cable, and more particularly to a structure in which a battery cable is sandwiched between a current sensor housing and a holder and the current sensor is mounted on the battery cable.

  In the conventional current sensor mounting structure 300 to the battery cable, as shown in FIG. 5, after the shield plate 304 is press-fitted into the housing 302 of the current sensor 308, the cover 306 is installed. It is fixed to 302 by ultrasonic welding.

  Note that the cover 306 is provided so as to cover the upper surface of the shield plate 304 in order to prevent the occurrence of contact scratches on the shield plate 304 and to prevent deformation.

  Further, in the current sensor mounting structure 350 to the conventional battery cable, as shown in FIG. 6, the battery cable 358 is passed through the through hole 356 provided in the housing 354 of the current sensor 352, and the battery cable 358 is connected to the fastening band. 360 is fixed to the housing 354.

  For example, Patent Document 1 and Patent Document 2 can be listed as conventional current sensor mounting structures for battery cables.

JP 2010-185848 A JP 2010-164517 A

  By the way, in the current sensor mounting structure 350 to the conventional battery cable, after passing the battery cable 358 through the through hole 356 provided in the housing 354 of the current sensor 352, the battery cable 358 is attached to the housing 354 using the fastening band 360. Therefore, there is a problem that the installation process of the current sensor to the battery cable is complicated.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a structure for attaching a current sensor to a battery cable in which the installation of the current sensor on the battery cable is simplified.

  The invention according to claim 1 is configured to include a housing provided with a current detection unit for detecting a current flowing through the battery cable, a holder main body, and a shield material provided on the holder main body. It is a current sensor mounting structure to a battery cable having a holder that is installed and holds the battery cable in cooperation with the housing.

  According to a second aspect of the present invention, in the current sensor mounting structure to the battery cable according to the first aspect, the holder is provided with a locked portion, and the housing is provided with a locking portion. When the holder is in the middle of being installed in the housing, the locked portion comes into contact with the locking portion, the locked portion is elastically deformed, and the holder is completely installed in the housing. The battery cable is configured such that the locked portion is restored, the locked portion is locked to the locking portion, the holder is installed in the housing, and the battery cable is sandwiched. A current sensor mounting structure.

  According to a third aspect of the present invention, in the structure for attaching the current sensor to the battery cable according to the second aspect, the locking portion of the housing includes a through-hole penetrating the housing and both ends of the through-hole. And a pair of planar portions formed around the opening. The locked portion of the holder is provided at an elastic portion protruding from the holder and at the tip of the elastic portion. And a stopper provided on the holder at the base end side of the elastic part, and in the state of installing the holder on the housing, the claw and the claw When the elastic portion is elastically deformed by a reaction force received from the housing with the tip side portion of the elastic portion being received from the housing, and when the holder has been installed in the housing, the claw portion is removed from the through hole. Exit Abuts against one planar portion of the pair of planar portions, the elastic portion is restored and positioned in the through hole, and the stopper portion is the other planar shape of the pair of planar portions. It is a current sensor mounting structure to a battery cable configured such that the holder is installed in the housing by being in contact with a portion and sandwiching the housing between the claw portion and the stopper portion.

  According to the present invention, there is an effect that it is possible to provide a structure for attaching a current sensor to a battery cable, in which the installation of the current sensor to the battery cable is simplified as compared with the related art.

It is sectional drawing which shows schematic structure of the current sensor attachment structure to the battery cable which concerns on embodiment of this invention. FIG. 4 is an exploded perspective view of a housing and a holder in the battery cable current sensor according to the embodiment of the present invention. It is a figure which shows schematic structure of the holder in the current sensor attachment structure to the battery cable which concerns on embodiment of this invention, (a) is a disassembled perspective view of the holder main body and shield member of a holder, (b) is It is the front of the holder which has decomposed | disassembled the holder main body and shield member of a holder, (c) is the front of a holder. It is a figure corresponding to FIG. 1, Comprising: In the current sensor attachment structure to the battery cable which concerns on embodiment of this invention, it is a figure which shows the state before pinching a battery cable with a holder. It is a perspective view which shows schematic structure of the current sensor attachment structure to the conventional battery cable. It is a figure which shows schematic structure of the current sensor attachment structure to the conventional battery cable, (a) is a front, (b) is a side view.

  A current sensor 3 used in a current sensor mounting structure (current sensor mounting structure) 1 to a battery cable according to an embodiment of the present invention includes a housing (housing) 5 and a holder (fixing material) as shown in FIG. And 7). The housing 5 is provided with a current detection unit 11 that detects a current flowing through the core of a battery cable 9 such as a vehicle.

  The battery cable 9 includes a conductive core wire (not shown) and an insulating covering portion (not shown), and has a certain degree of flexibility. The core wire is formed, for example, by twisting a plurality of strands (a strand composed of a metal such as copper). The covering portion is made of a synthetic resin such as polyvinyl chloride, and covers the core wire.

  The cross section of the battery cable 9 (the cross section taken along a plane orthogonal to the longitudinal direction) is circular in a normal state (for example, when the current sensor 3 is not installed). More specifically, the cross section of the core wire has a substantially circular shape, and the cross section of the covering portion has an annular shape whose inner diameter is equal to the outer diameter of the core wire. The outer periphery of the covering portion is the outer periphery of the battery cable.

  In this embodiment, the battery cable 9 is described as an example, but the current sensor mounting structure 1 may be applied to a cable (electric wire) other than the battery cable.

  In the current sensor mounting structure 1, first, as shown in FIG. 4, a heat fusion tape 13 is installed (for example, wound) on the outer periphery of the battery cable 9, and the heat fusion tape is installed with the heat fusion tape 13 installed. The portion 15 is sandwiched between the housing 5 of the current sensor (for example, coreless specification current sensor) 3 and the holder (holder assembly; holder assembly) 7 (the holder 7 is sandwiched by being integrally installed in the housing 5). Compressed.

  As shown in FIG. 1, after fixing the heat-seal tape installation site 15 to the housing 5 and the holder 7 (fixing the current sensor 3 to the heat-seal tape installation site 15) (after being provided integrally), for example, Then, heat is applied by blowing hot air to soften the heat fusion tape 13 once, and after this softening, the heat fusion tape 13 is cooled and cured. In this way, the current sensor mounting structure 1 is configured.

  The current sensor 3 is installed in the vicinity of the end of the battery cable 9 in the longitudinal direction or in the middle. Then, as described above, the heat-seal tape installation site 15 is sandwiched between the housing 5 and the holder 7 to fix the current sensor 3 to the battery cable 9, and after the heat-seal tape 13 is softened and cured, the battery cable 9 The current detector 11 detects the current flowing through the core wire.

  Note that the current value detected by the current detection unit 11 is amplified by a circuit of the substrate 17 of the housing 5 or the like, and is output via a cable (not shown) connected to the connector unit 19 (see FIG. 2). It is like that.

  The heat sealing tape 13 is installed so as to cover the covering portion of the battery cable 9. That is, in the heat sealing tape installation site 15, the core wire is covered with the covering portion, and the covering portion is covered with the heat sealing tape 13. Note that the battery cable 9 may have a configuration in which the covering portion is removed over a predetermined length to expose the core wire, and the heat sealing tape 13 is directly wound around the outer periphery of the exposed core wire. Good.

  In a state in which the housing 5 and the holder 7 are fixed to the heat sealing tape installation site 15, as shown in FIG. 1, the housing 5 and the holder 7 are compressed by the cross section of the heat sealing tape installation site 15. (Cross-sectional shape of the heat-sealing tape 13 and the battery cable 9; a cross-sectional shape by a plane orthogonal to the longitudinal direction of the battery cable 9) is an elliptical shape obtained by crushing a circle. More specifically, the covering portion of the battery cable 9 has an elliptical ring shape surrounding the elliptical core wire, and the heat sealing tape 13 has an elliptical ring shape surrounding the elliptical battery cable 9. .

  The oval shape of the heat-seal tape installation site 15 compressed by the housing 5 and the holder 7 hardly changes even if the heat-seal tape 13 is heated and softened, and the heat-seal tape 13 is cooled. Moreover, even when cured, there is almost no change.

  Further, even when the heat-seal tape 13 is cooled and cured, the battery cable 9 and the heat-seal tape 13 are sandwiched between the housing 5 and the holder 7, and the housing 5 and the holder 7 are thermally fused. It is fixed to the adhesive tape installation site 15 (heat fusion tape 13).

  The heat sealing tape 13 is installed in a “C” shape with a non-installation part in part when viewed from the longitudinal direction of the battery cable 9. A configuration in which 13 is provided in a single or multiple winding (a configuration in which the heat fusion tape 13 is provided in a cylindrical shape) may be used.

  The current sensor mounting structure 1 will be further described. The current sensor mounting structure 1 includes the housing 5, the heat-sealing tape 13, and the holder 7 as described above.

  The housing 5 is provided with a current detection unit 11 that detects a current flowing through the core wire of the battery cable 9. The heat sealing tape 13 is wound around the outer periphery of the battery cable 9.

  The holder 7 sandwiches and compresses the heat-seal tape installation site 15 around which the heat-seal tape 13 is wound in cooperation with the housing 5, and the cross-sectional shape of the heat-seal tape installation site 15 (of the battery cable 9). The shape of the cross section by a plane orthogonal to the longitudinal direction) is deformed into an ellipse.

  And in the current sensor attachment structure 1, when the said compression by the housing 5 and the holder 7 is cancelled | released, it is comprised so that the cross-sectional shape of the heat fusion tape installation site | part 15 may maintain an ellipse shape.

  That is, in the current sensor mounting structure 1, the holder 7 is separated from the housing 5 from the state in which the heat-seal tape installation site 15 is sandwiched between the housing 5 and the holder 7 and is deformed. Even if the pinching is stopped and the compression of the heat-seal tape installation site 15 is eliminated, the cross-sectional shape of the heat-seal tape installation site 15 is slightly deformed, but the elliptical shape when held is almost maintained. ing.

  This phenomenon of maintaining the elliptical shape is caused by, for example, the softening and curing of the heat-sealing tape 13 as described above. That is, in a state where the heat-sealable tape installation site 15 is sandwiched between the housing 5 and the holder 7, the heat-sealable tape 13 is softened by applying heat, and after this softening, the heat-sealable tape 13 is cured. As a result, the internal stress of the heat-sealing tape 13 changes and the phenomenon described above occurs.

  By the way, in the current sensor mounting structure 1, the housing 5 includes a housing body (housing body) 21 and a cover 23. A current detection unit 11 that detects a current flowing through the core wire of the battery cable 9 is provided in the housing body 21.

  The cover 23 is installed integrally with the housing body 21 so as to be separated from the current detection unit 11 and cover the current detection unit 11.

  The heat-seal tape installation site 15 is sandwiched between the holder 7 and a cover 23 installed integrally with the housing body 21. Thus, the current sensor 3 is integrally installed on the battery cable 9.

  In the current sensor mounting structure 1, for example, a soft filler (soft filler; for example, soft synthetic resin or soft rubber) 41 is filled between the current detection unit 11 and the cover 23 inside the housing body 21. Has been.

  The current sensor mounting structure 1 will be described in more detail. For convenience of explanation, a predetermined direction in the space is defined as a horizontal direction, a direction perpendicular to the horizontal direction is defined as a vertical direction, and a direction perpendicular to the horizontal direction and the vertical direction is defined as a length direction (battery cable). 9 in the direction matching the length direction of 9).

  As described above, the current sensor 3 includes the housing 5, the holder 7, the current detection unit 11, and the substrate 17.

  The housing 5 is configured to include a housing main body 21 and a cover 23 configured separately from the housing main body 21, for example.

  The housing body 21 and the cover 23 are formed by integrally molding a material such as an insulating synthetic resin.

  The housing main body 21 includes a housing main body portion 25, a connector portion 19, a locking portion 27, a stopper portion contact portion 29, and a cover contact portion 31.

  In the central portion of the housing main body 21 (housing main body portion 25), for example, a rectangular (cuboid) concave portion 33 is formed, and the substrate 17 and the current detection portion 11 are provided in the concave portion 33. . The substrate 17 and the current detection unit 11 are integrally installed on the housing body 21.

  The recess 33 is open on one end side in the vertical direction, and the current detection portion of the current detection unit 11 faces the one end side in the vertical direction (upper side in FIG. 1 and the like).

  As shown in FIG. 2, the connector part 19 protrudes from the housing body part 25 in the longitudinal direction of the housing body 21.

  As shown in FIG. 2, the locking portion 27 is provided in the vicinity of, for example, the four corners of the recess 33. Details of the locking portion 27 will be described later. As shown in FIG. 1, the stopper contact portion 29 protrudes from the housing main body 25 on both lateral sides of the housing main body 21.

  The cover contact portion 31 is formed in the recess 33 as shown in FIG. The cover contact portions 31 protrude from the inner wall of the recess 33 toward the center of the recess 33 on both sides in the lateral direction of the housing body 21 and are formed, for example, as a pair. The upper surface 35 of the cover abutting portion 31 has a planar shape and is recessed from the opening 37 of the recess 33. A step is formed between the opening 37 of the recess 33 and the upper surface 35 of the cover contact portion 31. In addition, instead of or in addition to the cover contact portions 31 being provided on both lateral sides of the housing body 21, the center of the recess 33 is formed from the inner wall of the recess 33 on both sides in the length direction of the housing body 21. It may be provided so as to protrude to the side.

  Although the cover 23 is formed in a flat plate shape, an elliptical arc-shaped (or arc-shaped) recess 39 may be formed on one surface in the thickness direction (the surface on one end side in the vertical direction in FIG. 4 and the like). Yes. The horizontal dimension of the cover 23 is substantially equal to the horizontal dimension of the recess 33 (a portion near the opening 37 where the cover contact portion 31 is not formed).

  Then, when the cover 23 is installed in the recess 33 of the housing body 25 such that the other surface in the thickness direction of the cover 23 faces the recess 33 of the housing body 25 (see FIG. 4), Surfaces in the vicinity of both end portions in the lateral direction (a part of the other surface in the thickness direction) abut on the cover contact portion 31, and both end surfaces in the lateral direction of the cover 23 abut on the wall surface of the recess 33, The cover 23 is fitted into the housing main body 21, and the cover 23 is integrally installed on the housing main body 21 (housing main body portion 25).

  In the state in which the cover 23 is installed on the housing main body 21, the recess 39 of the cover 23 extends in the length direction, and a gap is formed between the cover 23 and the current detection unit 11. The gap is filled with a soft filler 41, for example.

  When the cover 23 is installed on the housing main body 21, the cover 23 slightly protrudes from the opening of the recess 33, and the cover 23 is further pushed by the cover contact portion 31 to the bottom of the recess 33. It cannot move on the side (the other end in the vertical direction; the lower side in FIG. 1).

  As shown in FIG. 3, the holder 7 includes a holder main body (fixing material main body) 43 and a shield material (for example, a shield plate) 45 provided integrally with the holder main body 43.

  As described above, the holder 7 is installed integrally with the housing 5 so as to sandwich the battery cable 9 in cooperation with the housing 5.

  The holder main body 43 and the shield plate 45 are integrated in advance to form the holder 7, and the holder 7 is installed in the housing 5.

  The holder 7 (for example, the holder main body 43) is provided with a locked portion 47. Then, in the state where the holder 7 is being installed integrally with the housing 5 (from the state where the holder 7 is separated from the housing 5, the holder 7 is moved closer to the housing 5 in order to be installed integrally with the housing 5. When moving linearly), the locked portion 47 of the holder 7 comes into contact with the locking portion 27 of the housing 5 so that the locked portion 47 is elastically deformed.

  Further, when the holder 7 is completely installed in the housing 5 (when the linear movement is completed and the installation is completed), the locked portion 47 is restored, and the locked portion 47 is engaged with the locking portion 27. The holder 7 is installed integrally with the housing 5 so that the battery cable 9 is sandwiched between the holder 7 and the housing 5.

  As shown in FIG. 2, the locking portion 27 of the housing 5 (the locking portion provided in the housing 5) has, for example, four through holes penetrating the housing 5 (housing main body portion 25) in the vertical direction. (Locked portion insertion holes) 49 and a pair of planar portions (contact portions of the hook portions of the locked portions) formed in the housing body 25 around the openings at both ends of these through holes 49 The stopper part abutting part 51 of the locking part is provided.

  The through holes 49 are provided in the vicinity of the four corners outside the recess 33 of the housing main body 25 and penetrate the housing main body 25 in the vertical direction.

  A locked portion (for example, a locked portion provided in the holder main body 43) 47 of the holder 7 includes an elastic portion 53 protruding from the holder 7 and a claw portion provided at the tip of the elastic portion 53 ( (Snap fit part) 55 and a stopper part 57 provided on the holder 7 on the proximal end side of the elastic part 53.

  The holder 7 will be further described. As shown in FIG. 3, the shield plate 45 is formed in a “U” shape by bending a rectangular flat plate material made of a conductive material such as metal at two locations. Has been. A through hole 61 is formed in the top plate portion 59 of the shield plate 45.

  The holder main body 43 is also formed in a generally “U” shape. More specifically, the holder main body 43 includes a holder main body portion 63 that is formed in a rectangular bowl shape, an elliptic arc-shaped portion (concave portion) 65, and a protrusion 67. The elliptical arc-shaped portion 65 has a pair of side wall portions (holders) present on both ends in the length direction of the holder 7 on the opening side of the holder main body portion 63 (on the other end portion side in the vertical direction of the holder main body portion 63). It is formed on the side wall portion of the main body portion 63.

  The elastic portion 53 is formed in a rod shape, and protrudes from the four corners of the holder main body 63 to the opening side of the holder main body 63 (to the other end in the vertical direction of the holder main body 63).

  A protrusion 67 is provided on the top plate of the holder main body 63. The protrusion 67 exists inside the bowl-shaped holder main body 63.

  After inserting the shield plate 45 into the holder main body 43 and passing the projection 67 through the through hole 61, the holder main body 43 and the shield plate 45 are integrated by crimping the tip of the projection 67 with ultrasonic waves, for example. A generally “U” -shaped holder 7 is formed.

  In the holder 7, the elastic portion 53 is separated from the shield plate 45 in this length direction. Therefore, the elastic portion 53 can be elastically deformed by bending in the length direction of the holder 7 (by bending in the direction of the arrow AR in FIG. 3A). Further, the claw portion 55 protrudes outside the holder 7 from the elastic portion 53 in the length direction of the holder 7.

  In a state in which the holder 7 is integrally installed in the housing 5, the elastic portion 53 is elasticized by a reaction force received from the housing 5 by inserting the claw portion 55 and the distal end side portion of the elastic portion 53 into the through hole 49. It is deformed (elastically deformed by bending inside the holder 7).

  When the holder 7 has been installed integrally with the housing 5, the claw portion 55 comes out of the through hole 49 and comes into contact with one planar portion of the pair of planar portions 51, so that the elastic portion 53 is restored. At the same time, the stopper portion 57 is positioned in the through hole 49 and abuts against the other planar portion of the pair of planar portions 51, and the housing 5 (housing main body 21) is formed by the claw portion 55 and the stopper portion 57. The holder 7 is configured so as to be installed integrally with the housing 5.

  Here, the installation operation | movement to the battery cable 9 of the current sensor 3 is demonstrated.

  In addition, the holder 7 shall be assembled previously by the aspect shown in FIG.

  As shown in FIG. 4, the cover 23 is installed on the holder main body 43. A heat sealing tape 13 is installed at a portion of the battery cable 9 where the current sensor 3 is installed.

  As shown in FIG. 4, the heat-seal tape installation site 15 where the heat-seal tape 13 is installed is placed in the recess 39 of the holder 7 (cover 23). Subsequently, as shown in FIG. 2 and FIG. 4, the holder 7 is brought close to the housing 5, the holder 7 is installed in the housing 5, and the holder 7 and the housing 5 sandwich the heat fusion tape installation site 15 and press it. (See FIG. 1).

  As shown in FIGS. 2 and 4, when the holder 7 is brought close to the housing 5, the heat sealing tape installation site 15 is automatically aligned by the recess 39 of the cover 23 and the recess 65 of the holder 7. In the state shown in FIG. 1, the heat sealing tape installation site 15 is in contact with the recess 39 of the cover 23 and the recess 65 of the holder 7.

  In this case, the recess 39 is formed over the entire length of the cover 23, and the recess 65 is formed only at both ends of the holder 7 in the length direction (see FIG. 2A). The upper portion 9 </ b> A of the battery cable 9 shown in FIG. 1 is swollen above the state shown in FIG. 1 because the recess 65 does not exist between the pair of recesses 65. That is, the cross-sectional shape of the heat sealing tape installation site 15 changes in this length direction. Thus, the current sensor 3 installed in the battery cable 9 is more reliably fixed in the length direction of the battery cable 9.

  In the state shown in FIG. 1, the heat sealing tape 13 is heated and softened, and then the heat sealing tape 13 is cured, and the installation of the current sensor 3 to the battery cable 9 is completed. Is generated.

  According to the current sensor mounting structure 1, the holder 7 includes a holder main body 43 and a shield member 45 provided integrally with the holder main body in advance, and the battery cable 9 is attached to the housing 5 of the current sensor 3. After that, the battery cable 9 is sandwiched only by installing the holder 7 in the housing 5 and the current sensor 3 is installed in the battery cable 9. Therefore, the installation of the current sensor 3 in the battery cable 9 is conventional. More simplified than that.

  That is, the conventional work of passing the battery cable through the through hole of the current sensor is not required, and the conventional work of welding the cover is not required, so that the current sensor 3 is installed on the battery cable 9. Workability of work is improved. Further, it is not necessary to install a current sensor on the battery cable using a conventional binding band.

  Further, in the current sensor mounting structure 1, the locked portion 47 abuts on the locking portion 27 and the locked portion 47 is elastically deformed while the holder 7 is being installed integrally with the housing 5. 7 is integrally installed in the housing 5, the locked portion 47 is restored, the locked portion 47 is locked to the locking portion 27, and the holder 7 is integrally mounted on the housing 5. 9 is configured to be sandwiched.

  Thereby, the operation | work which installs the holder 7 in the housing 5 is simplified, and the workability | operativity of the installation operation | work to the battery cable 9 of the current sensor 3 is improved further.

  Further, according to the current sensor mounting structure 1, when the holder 7 is integrally installed in the housing 5, the elastic portion 53 is elastically deformed, and when the holder 7 is completely installed in the housing 5, Since the elastic part 53 is restored and the housing 5 is sandwiched between the claw part 55 and the stopper part 57, the holder 7 is configured to be installed integrally with the housing 5, so the holder 7 is installed in the housing 5. Work is further simplified.

  In the current sensor mounting structure 1, the heat-sealing tape 13 may be deleted. As a result, the battery cable 9 is directly sandwiched between the housing 5 and the holder 7. Further, heating and cooling after the battery cable 9 is sandwiched between the housing 5 and the holder 7 are not required.

DESCRIPTION OF SYMBOLS 1 Current sensor attachment structure to battery cable 7 Holder 9 Battery cable 11 Current detection part 27 Locking part 43 Holder main body 45 Shielding material 47 Locked part 49 Through-hole 51 Flat part 53 Elastic part 55 Claw part 57 Stopper part

Claims (3)

A housing provided with a current detector for detecting a current flowing through the battery cable;
A holder body and a shield material provided on the holder body, the holder is installed in the housing, and holds the battery cable in cooperation with the housing; and
A structure for attaching a current sensor to a battery cable. In the current sensor mounting structure to the battery cable according to claim 1,
The holder is provided with a locked portion, and the housing is provided with a locking portion,
In a state in which the holder is being installed in the housing, the locked portion comes into contact with the locking portion, the locked portion is elastically deformed, and when the holder has been installed in the housing, The battery is configured such that the locked portion is restored, the locked portion is locked to the locking portion, the holder is installed in the housing, and the battery cable is sandwiched. Current sensor mounting structure to the cable. In the current sensor mounting structure to the battery cable according to claim 2,
The locking portion of the housing includes a through-hole penetrating the housing and a pair of planar portions formed around the openings at both ends of the through-hole.
The locked portion of the holder includes an elastic portion protruding from the holder, a claw portion provided at a distal end of the elastic portion, and a stopper portion provided in the holder on the proximal end side of the elastic portion. And is configured with
In a state where the holder is being installed in the housing, the elastic portion is elastically deformed by a reaction force that the claw portion and the distal end side portion of the elastic portion are inserted into the through hole and received from the housing, and the holder Is finished in the housing, the claw part comes out of the through hole and comes into contact with one planar part of the pair of planar parts, and the elastic part is restored and the inside of the through hole is restored. The holder is installed in the housing by positioning the stopper portion in contact with the other planar portion of the pair of planar portions and sandwiching the housing between the claw portion and the stopper portion. A current sensor mounting structure to a battery cable, characterized in that the structure is configured as described above.

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