JP7440899B2 - Electromagnetic noise countermeasure components - Google Patents

Description

The technology disclosed in the present application relates to an electromagnetic noise countermeasure member for reducing electromagnetic noise propagating to electric wires.

Conventionally, as this type of electromagnetic noise countermeasure member, one is known that includes a magnetic core, a case that accommodates the magnetic core, and a support that supports the case (Patent Document 1).

Japanese Patent Application Publication No. 2017-103307

Vehicles such as automobiles are wired with many electric wires, so reducing the electromagnetic noise that propagates to or radiates from the wires is an important issue in preventing vehicle malfunctions. It becomes.
In particular, electric vehicles (EVs) are in an environment where electromagnetic noise is likely to occur. For example, an electric vehicle is equipped with an inverter that converts direct current supplied from a battery into alternating current. An inverter is a switching power supply, and high-frequency energy is generated at points where direct current is interrupted, and this becomes electromagnetic noise, which may be radiated from the wire harness that connects the inverter and the motor.
Therefore, conventionally, electromagnetic noise radiated from the wire harness is reduced by covering the wire harness with an electromagnetic shielding member.
Furthermore, as the introduction of automated vehicle driving technology progresses, countermeasures against electromagnetic noise have become a particularly important issue, as vehicle malfunctions can be life-threatening.

By the way, since the above wire harness is covered with an electromagnetic shielding member, it is possible to reduce electromagnetic noise radiated from the wire harness, but it is difficult to reduce noise propagated to the wire harness.
Therefore, the inventors of the present application have developed an electromagnetic noise countermeasure member that can surround a wire harness with a magnetic core, and have developed a technology that allows the magnetic core to absorb electromagnetic noise propagating to the wire harness.
However, subsequent research suggests that when vehicle vibrations are conducted to the electromagnetic noise countermeasure component, the vibration amplitude of the electromagnetic noise countermeasure component attached to the wire harness increases, which may have some effect on the electromagnetic noise countermeasure component. reached.
Therefore, the inventors of the present application have developed a technique for reducing the amplitude of vibration of the electromagnetic noise countermeasure member by fixing the electromagnetic noise countermeasure member to the vehicle body.

By the way, in order to ground the electromagnetic shielding member to the vehicle body, the wire harness covered with the electromagnetic shielding member needs to connect a connector provided at an end of the wire harness to a terminal on the connection side.
In other words, if you try to use the technology of attaching an electromagnetic noise countermeasure member to the wire harness, in addition to the work of fixing the connector of the wire harness to the connection side, there will be additional work to attach the electromagnetic noise countermeasure member to the vehicle body. A new issue has arisen: the efficiency of implementing electromagnetic countermeasures is decreasing.

Therefore, the technology disclosed in this application was created in order to solve the above problem, and its purpose is to provide an electromagnetic noise countermeasure member that can improve the work efficiency of applying electromagnetic countermeasures to electric wires. shall be.

In order to achieve the above-mentioned object, the electromagnetic noise countermeasure member according to the technology disclosed in the present application is provided with a part of the insulated conductor that is not covered by the electromagnetic shielding member among the electric wires in which part of the conductor is not covered by the electromagnetic shielding member. A magnetic core surrounding the insulated conductor, a holding member made of a non-conductive material to hold the magnetic core on its inner surface, and a conductive member for attaching the holding member to a grounding point. A mounting member formed of a material, the mounting member having a connecting part for electrically connecting with the electromagnetic shielding member, and the electromagnetic shielding member being sandwiched between the holding member and electrically connected to the mounting member. The present invention is characterized by comprising a clamping member that can be used .

The mounting member is made of a conductive material and has a connecting part for electrically connecting with the electromagnetic shielding member. Therefore, by attaching the mounting member to which the electromagnetic shielding member is electrically connected to the grounding point, Since the electromagnetic shielding member is in a grounded state, the work of grounding the electromagnetic shielding member can be reduced.
By holding the electromagnetic shielding member between the holding member and the holding member, the electromagnetic shielding member can be electrically connected to the mounting member.
Further, since there is no need to provide a special member necessary for grounding the electromagnetic shielding member on the electric wire and the grounding side, the degree of freedom in grounding the electromagnetic shielding member can be increased accordingly.

Further, in the electromagnetic noise countermeasure member according to the technology disclosed in the present application, a through hole is formed in the magnetic core so that the insulated conductor wire in the portion not covered by the electromagnetic shielding member is inserted. The connecting portion is provided around the opening of the through hole of the mounting member to which the holding member is attached.

The connecting part for electrically connecting the electromagnetic shielding member that covers the insulated conductor is provided around the opening of the through hole in the mounting member to which the holding member is fixed, so the electromagnetic shielding member cannot be connected to the connecting part. can be electrically connected relatively easily.

Further, in the electromagnetic noise countermeasure member according to the technology disclosed in the present application, the mounting member includes a fixing portion for fixing the holding member and a first direction from the fixing portion, and the mounting member is arranged in the first direction. a first mounting part for attaching the mounting member to a grounding point; A second attachment portion for attachment to the device is provided.

Even if the grounding point of the mounting member exists in the first direction from the fixing part to which the holding member is fixed, or in the second direction different from the first direction, the mounting member can be attached to the grounding point. I can do it.
Therefore, since it is not necessary to manufacture two or more types of mounting members depending on the direction in which the ground contact point exists, the manufacturing cost of the mounting members can be reduced.

Further, in the electromagnetic noise countermeasure member according to the technology disclosed in the present application, the fixed portion has a first protrusion portion and a second protrusion portion spaced apart from each other, and the holding member has a One end of both ends perpendicular to the axial direction of the magnetic core held on the inner surface of the member has a first insertion hole for inserting the first protrusion, and a first insertion hole for inserting the first protrusion into the first insertion hole. A first locking member for locking the first protrusion that has been inserted is provided, and a second locking member for inserting the second protrusion is provided at the other end of both ends. The device is characterized by being provided with an insertion hole and a second locking member for locking the second protrusion inserted into the second insertion hole.

Since the holding member can be locked to the fixed portion at both ends, the attachment strength of the holding member can be increased.
Therefore, even if the part where the holding member is attached vibrates, the amplitude of the vibration of the holding member can be reduced, so that the magnetic core held by the holding member is not affected by the vibration. can do.

According to the electromagnetic noise countermeasure member according to the technology disclosed in the present application, it is possible to provide an electromagnetic noise countermeasure member that can improve work efficiency for applying electromagnetic countermeasures to electric wires.

FIG. 1 is a perspective view of an electromagnetic noise countermeasure member according to a first embodiment of the present invention. FIG. 2 is a six-sided view of the electromagnetic noise countermeasure member shown in FIG. 1. FIG. 3 is a sectional view taken along the line AA in FIG. 2. FIG. FIG. 2 is a six-sided view of the main body constituting the electromagnetic noise countermeasure member shown in FIG. 1. FIG. (A) is a cross-sectional view taken along the line AA in FIG. 4, (B) is an enlarged view showing the area indicated by the symbol B in FIG. 4, enlarged twice, and (C) is the area indicated by the symbol C in FIG. (D) is an enlarged partial cross-sectional view showing a part of the interior enlarged twice, and (D) is an enlarged partial cross-sectional view of FIG. This is a reference diagram showing a part of the interior in a closed state. FIG. 2 is a perspective view of a mounting member constituting the electromagnetic noise countermeasure member shown in FIG. 1. FIG. FIG. 7 is a six-sided view and a sectional view taken along the line AA of the mounting member shown in FIG. 6; FIG. 2 is a perspective view showing an example of a state in which the electromagnetic noise countermeasure member shown in FIG. 1 is used. FIG. 2 is a perspective view showing an example of a usage state of a modified example of the electromagnetic noise countermeasure member shown in FIG. 1; FIG. 7 is a perspective view of an electromagnetic noise countermeasure member according to a second embodiment of the present invention. 11 is a six-sided view of the electromagnetic noise countermeasure member shown in FIG. 10. FIG. 12 is a sectional view taken along the line AA in FIG. 11. FIG. 11 is a perspective view of a mounting member that constitutes the electromagnetic noise countermeasure member shown in FIG. 10. FIG. 14 is a six-sided view and a sectional view taken along the line AA of the mounting member shown in FIG. 13. FIG. FIG. 11 is a perspective view showing an example of a state in which the electromagnetic noise countermeasure member shown in FIG. 10 is used. FIG. 7 is a perspective view of an electromagnetic noise countermeasure member according to a third embodiment of the present invention. 17 is a six-sided view of the electromagnetic noise countermeasure member shown in FIG. 16. FIG. FIG. 17 is a cross-sectional view taken along the line AA in FIG. 17. FIG. 17 is a perspective view of a clamp attachment member that constitutes the electromagnetic noise countermeasure member shown in FIG. 16; FIG. 20 is a six-sided view and a sectional view taken along the line BB of the clamp attachment member shown in FIG. 19. FIG. 17 is a perspective view showing an example of a state in which the electromagnetic noise countermeasure member shown in FIG. 16 is used. FIG. 7 is a perspective view of an electromagnetic noise countermeasure member according to a fourth embodiment of the present invention. 23 is a six-sided view of the electromagnetic noise countermeasure member shown in FIG. 22. FIG. 24 is a sectional view taken along the line AA in FIG. 23. FIG. FIG. 23 is a perspective view showing an example of a state in which the electromagnetic noise countermeasure member shown in FIG. 22 is used. FIG. 23 is a perspective view showing an example of a state in which the electromagnetic noise countermeasure member shown in FIG. 22 is used. FIG. 25 is an explanatory view showing a part of FIG. 24 enlarged, in which (A) is an explanatory view showing a state before fixing with bolts, and (B) is an explanatory view showing a state after fixing with bolts.

<First embodiment>
An electromagnetic noise countermeasure member according to a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the electromagnetic noise countermeasure member 1 according to the present embodiment includes an electromagnetic noise countermeasure member main body (hereinafter referred to as the main body) 10, and an attachment for attaching the main body 10 to a predetermined location of a vehicle. A member 50 is provided. The attachment member 50 is attached to a location on the vehicle that can be grounded. Groundable locations on a vehicle include the body, chassis, and electrical equipment such as an inverter unit and a motor unit.

[Main structure of main body]
First, the structure of the wire harness to which the main body 10 is attached will be explained with reference to FIG. 8.
As shown in FIG. 8, the wire harness 60 includes insulated conductive wires 61, 61 and an electromagnetic shielding member 62 that covers each insulated conductive wire 61, 61. Further, a portion of the insulated conductive wires 61, 61 is not covered by the electromagnetic shielding member 62. In FIG. 8 , the mesh-hatched portion is the electromagnetic shielding member 62 . For example, the electromagnetic shielding member 62 has a structure in which metal wires made of a conductive metal material are woven into a mesh shape. Further, as the wire harness 60, one having a structure in which the electromagnetic shielding member 62 is covered with a corrugated tube or the like covered with a conductive film can also be used. The main body 10 is attached to the insulated conductive wires 61 , 61 of the wire harness 60 in a portion not covered by the electromagnetic shielding member 62 .
Next, the main structure of the main body 10 will be explained with reference to the drawings.
As shown in FIG. 5(A), the main body 10 includes two divided magnetic core parts 11, 11 and a holding member 20 for holding these magnetic core parts 11, 11. The holding member 20 includes a first holding member 30 for holding one (upper side in the figure) magnetic core component 11 on its inner surface, and a first holding member 30 for holding the other (lower side in the figure) magnetic core component 11 on its own inner surface. A second holding member 40 for holding on the inner surface is provided. The opening edges of the first holding member 30 and the second holding member 40 are locked to each other. The magnetic core components 11 and 11 are in contact with each other, and between the magnetic core components 11, the insulated conductor wire (FIG. 8) of the portion of the wire harness 60 that is not covered by the electromagnetic shielding member 62 is placed between the magnetic core components 11. A through hole 12 is formed in the front-rear direction to allow insertion. The magnetic core parts 11, 11 in which the through hole 12 is formed by abutting each other form a magnetic core.

As shown in FIGS. 4 and 5, one end (the right end in FIG. 5A) of the second holding member 40 is perpendicular to the axial direction of the magnetic core held on the inner surface. A first end 43 is formed, and a second end 46 is formed at the other end (the left end in FIG. 5A). The first end portion 43 is provided with a first outer wall 43a disposed on the outside, and a first locking piece 44 disposed on the inner side facing the first outer wall 43a. A first insertion hole 45 is provided between the first outer wall 43a and the first locking piece 44 for inserting the first protrusion 52 (FIG. 6) provided on the mounting member 50 from below. It is formed. The first locking piece 44 has a first locking protrusion for locking into the first locking hole 52a (FIG. 6) of the first protrusion 52 inserted into the first insertion hole 45. 44a is formed to protrude outward.

The second end portion 46 is provided with a second outer wall 46a disposed on the outside, and a second locking piece 47 disposed on the inner side facing the second outer wall 46a. A second insertion hole 48 is provided between the second outer wall 46a and the second locking piece 47 for inserting the second protrusion 53 (FIG. 6) provided on the mounting member 50 from below. It is formed. The second locking piece 47 has a second locking protrusion for locking into the second locking hole 53a (FIG. 6) of the second protrusion 53 inserted into the second insertion hole 48. 47a is formed to protrude outward. The first locking piece 44 is an example of the first locking member of the present invention, and the second locking piece 47 is an example of the second locking member of the present invention.

A locking protrusion 41 is formed to protrude outward from the outer wall of the first end 43 of the second holding member 40 . A locking member 31 for locking to a locking protrusion 41 is formed on the outer wall. A locking protrusion 32 is formed to protrude outward on the outer wall of the first holding member 30 on the second end 46 side. A locking member 42 for locking to the locking protrusion 32 is formed on the outer wall. By locking the locking member 31 with the locking projection 41 and locking the locking member 42 with the locking projection 32, the first holding member 30 and the second holding member 40 are locked with each other. The holding member 20 is formed by being stopped. Further, as a result, the magnetic core made up of the magnetic core parts 11, 11 is held on the inner surface of the holding member 20.

Further, a plate spring 13 for pressing the magnetic core component 11 is interposed between the inner surface of the upper wall of the first holding member 30 and the upper surface of the upper magnetic core component 11 . Further, a plate spring 13 for pressing the magnetic core component 11 is interposed between the inner surface of the lower wall of the second holding member 40 and the lower surface of the lower magnetic core component 11 . Each of the magnetic core components 11 is pressed against each other by each leaf spring 13, and a state in which they are in contact with each other is maintained. Each magnetic core component 11 can be made of a magnetic material such as manganese ferrite, and the holding member 20 can be made of a non-conductive material such as synthetic resin.

[Main structure of mounting parts]
The main structure of the mounting member 50 will be explained with reference to the drawings.
As shown in FIGS. 6 and 7, the mounting member 50 includes a fixing part 51 for fixing the holding member 20, and a first protrusion 52 and a second protrusion 53 that protrude upward from the fixing part 51. , a first attachment portion 54 protruding forward from the front end 51b of the fixed portion 51, a second attachment portion 55 rising from the rear edge 51a of the fixed portion 51, and an electromagnetic shielding member of the wire harness 60. 62 (FIG. 8). The direction forward from the front end 51b of the fixed portion 51 is an example of the first direction of the present invention, and the direction upward from the rear edge 51a of the fixed portion 51 is an example of the second direction of the present invention. That is, in this embodiment, the first direction and the second direction are directions orthogonal to each other.

In this embodiment, the fixing part 51 is formed into a plate shape, and a first protrusion part 52 and a second protrusion part 53, which are spaced apart from each other, are formed on the upper plate surface of the fixing part 51 to protrude upward. There is. The first protruding part 52 and the second protruding part 53 are arranged to face each other, and are located at positions corresponding to the first insertion hole 45 and the second insertion hole 48 provided in the second holding member 40. It is located in The first protrusion 52 has a first locking hole 52a for locking the first locking protrusion 44a (FIG. 5(A)). A second locking hole 53a for locking the second locking protrusion 47a (FIG. 5(A)) is formed in the second protrusion 53. In this embodiment, the first protrusion 52 and the second protrusion 53 are each formed into a rectangular plate shape.

A bolt insertion hole 54a for inserting a bolt is formed in the first mounting portion 54 in the vertical direction. In this embodiment, the first attachment portion 54 is formed into a substantially triangular shape in plan view. Further, a bolt insertion hole 55a and a bolt insertion hole 55b are formed in the upper right corner and the upper left corner of the second mounting portion 55 in the front-rear direction, respectively. That is, the first mounting part 54 is arranged in front of the fixed part 51, and the second mounting part 55 is arranged above the fixed part 51 and behind the first mounting part 54. There is. In other words, the fixed portion 51 and the second attachment portion 55 are orthogonal to each other, and the first attachment portion 54 and the second attachment portion 55 are arranged in the orthogonal directions, respectively.
By arranging the first mounting portion 54 and the second mounting portion 55 in orthogonal directions, the mounting member 50 can be mounted even if the orientation of the mounting location of the mounting member 50 is changed by 90 degrees. becomes possible. Furthermore, in the case where two orthogonal surfaces have attachment points, the attachment strength can be increased by attaching the first attachment portion 54 to one surface and attaching the second attachment portion 55 to the other surface. . The grounding point to which the first attachment part 54 is attached is an example of the first grounding point of the present invention, and the grounding point to which the second attachment part 55 is attached is an example of the second grounding point of the invention. be.

An opening 56e is formed in the second mounting portion 55, and the connecting portion 56 projects rearward from the opening 56e. The connecting portion 56 includes a supporting portion 56a rising from the lower end of the opening edge of the opening 56e, a flat portion 56d bent rearward from the upper end of the supporting portion 56a, and rising from the left end of the flat portion 56d. It includes a side wall 56b and a side wall 56c rising from the right end of the flat portion 56d.

As shown in FIG. 8(B), the insulated conductive wires 61, 61 in the portions of the wire harness 60 that are not covered by the electromagnetic shielding member 62 are inserted into the main body 10. Further, in the wire harness 60, the insulated conductors 61, 61 covered by the electromagnetic shielding member 62 protrude rearward from the opening 56e, and the lower surface and both side surfaces of the electromagnetic shielding member 62 are connected to the connecting portion 56. is supported by a flat portion 56d and side walls 56b and 56c. That is, since the connecting portion 56 is provided around the opening 12a of the through hole 12 formed between the magnetic core components 11 and 11 in the mounting member 50 to which the holding member 20 is attached, the connecting portion 56 is an electromagnetic shield. The member 62 can be connected to the connecting portion 56 relatively easily. The electromagnetic shielding member 62 is electrically connected to the flat portion 56d and the side walls 56b and 56c, respectively. As a result, the electromagnetic shielding member 62 is electrically connected to the mounting member 50 through the connecting portion 56, so by attaching the mounting member 50 to the grounding point of the vehicle, the electromagnetic shielding member 62 can be connected to the grounding point of the vehicle through the mounting member 50. Can be grounded to The wire harness 60 is an example of the electric wire of the present invention.

Further, a portion of the electromagnetic shielding member 62 that is supported by the flat portion 56d and the side walls 56b, 56c is fastened to the flat portion 56d and the side walls 56b, 56c by a fixing band 63. This makes the electrical connection state between the electromagnetic shielding member 62 and the mounting member 50 even more reliable, so even if the electromagnetic noise countermeasure member 1 vibrates, the grounding point of the electromagnetic shielding member 62 will not be connected. It is possible to make it difficult for the grounded state to be released. The mounting member 50 is made of a conductive material such as iron or aluminum, and can be manufactured by press molding. Further, the fixing band 63 can be formed of a conductive material such as iron or aluminum, or a non-conductive material such as a synthetic resin. Further, the fixing band 63 can also be formed of an elastic material such as rubber. Alternatively, a method may be used in which a metal wire is wound around the electromagnetic shielding member 62 and the connecting portion 56, and both ends of the wound wire are tied and fixed.

[Example of change]
Next, a modification example of the electromagnetic noise countermeasure member 1 according to the first embodiment will be described with reference to FIG. 9.
As shown in FIG. 9, similarly to the electromagnetic noise countermeasure member 1 according to the first embodiment, the connecting portion 56 is provided on the rear edge 51a side of the fixing portion 51, and is also provided on the front end 51b side. Also provided. That is, the attachment member 50 included in the electromagnetic noise countermeasure member 1 according to the present modification has a feature in that one connection portion 56 is provided in each of the front and rear directions. The connecting portion 56 also provided on the front end 51b side has the same structure as the connecting portion provided on the rear edge 51a side, and protrudes forward when viewed from the holding member 20. In the illustrated example, an electromagnetic shielding member 62 of a wire harness 60 is connected to a connecting portion 56 that protrudes forward when viewed from the holding member 20.

For example, if the second attachment portion 55 is attached to a predetermined location 200 (FIG. 26) on the vehicle, the electromagnetic shielding member 62 of the wire harness 60 should be connected to the connection portion 56 at a position forward of the predetermined location 200. I can do it. In other words, even after the wire harness 60 is connected to the terminal placed at the predetermined location 200 and the second attachment portion 55 is fixed to the predetermined location 200, the electromagnetic shielding member 62 can be connected to the connection portion 56. Workability can be improved. Further, if connecting the electromagnetic shielding member 62 to the rear connecting portion 56 improves workability, the electromagnetic shielding member 62 can also be connected to the rear connecting portion 56. Further, it is also possible to eliminate the connecting portion 56 located at the rear and create a structure in which only the connecting portion 56 is located at the front.

Further, from the front end 51b of the fixed portion 51, a first attachment portion 57 and a third attachment portion 58 are formed to protrude forward, respectively. A bolt insertion hole 57a is formed in the first mounting part 57, and a bolt insertion hole 58a is formed in the third mounting part 58 in the vertical direction. As described above, since the two mounting parts are formed to protrude forward from the front end 51b of the fixed part 51, when the mounting member 50 is fixed to a predetermined location of the vehicle on the front end 51b side of the fixed part 51, , the mounting strength can be increased compared to a structure in which the structure is mounted using one mounting part.

[Effects of the first embodiment]
(1) According to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, the attachment member 50 for attaching the holding member 20 to a predetermined location of the vehicle is formed of a conductive material, and the wire harness Since it is configured to be electrically connectable to the electromagnetic shielding member 62 of 60, the electromagnetic shielding member 62 can be grounded by attaching the mounting member 50 to which the electromagnetic shielding member 62 is electrically connected to the grounding point of the vehicle. Therefore, the work of grounding the electromagnetic shielding member 62 can be reduced.

(2) Moreover, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, the connection portion 56 for electrically connecting with the electromagnetic shielding member 62 of the wire harness 60 is attached to the attachment member 20 fixed thereto. Since the member 50 is provided around the opening 12a of the through hole 12, the electromagnetic shielding member 62 can be electrically connected to the connecting portion 56 relatively easily.
Therefore, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, it is possible to provide an electromagnetic noise countermeasure member that can improve the work efficiency for applying electromagnetic countermeasures to the wire harness 60.

(3) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, there is no need to provide a specific member necessary for grounding the electromagnetic shielding member 62 on the wire harness 60 and the ground side. , the degree of freedom for grounding the electromagnetic shielding member 62 can be increased accordingly.

(4) Further, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, the mounting member 50 includes a fixing portion 51 for fixing the holding member 20, and a portion extending forward from the front end 51b of the fixing portion 51. Since the first mounting portion 54 is provided and the second mounting portion 55 is formed rising from the rear edge 51a of the fixed portion 51, the mounting location of the mounting member 50 can be changed by 90 degrees. Even in this case, the attachment member 50 can be attached. Furthermore, in the case where two orthogonal surfaces have attachment points, the attachment strength can be increased by attaching the first attachment portion 54 to one surface and attaching the second attachment portion 55 to the other surface. .

(5) Further, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, the fixed part 51 has a first protrusion 52 and a second protrusion 53 that are spaced apart from each other and protrude upward. One end (first end 43) of the holding member 20 that is orthogonal to the axial direction of the magnetic core held on the inner surface of the holding member 20 has a first A first insertion hole 45 for inserting the protrusion 52 and a first locking piece 44 for locking the first protrusion 52 inserted into the first insertion hole 45 are provided. The other end (second end 46) of both ends has a second insertion hole 48 for inserting the second protrusion 53, and a second insertion hole 48 for inserting the second protrusion 53 into the second insertion hole 48. A second locking piece 47 for locking the second protrusion 53 is provided.
That is, according to the electromagnetic noise countermeasure member 1 according to the first embodiment described above, since the holding member 20 can be locked to the fixing part 51 at both ends, the attachment strength of the holding member 20 can be increased.
Therefore, even if the grounding point to which the mounting member 50 is attached vibrates, the amplitude of the vibration of the holding member 20 can be reduced, so that the magnetic core held by the holding member 20 is not affected by the vibration. You can avoid it.
Furthermore, damage such as chipping or cracking of the magnetic core component 11 can be made less likely to occur due to vibration.

<Second embodiment>
Next, an electromagnetic noise countermeasure member according to a second embodiment of the present invention will be described with reference to the drawings. Note that the main body included in the electromagnetic noise countermeasure member according to the second embodiment has the same configuration as the main body 10 provided in the electromagnetic noise countermeasure member 1 according to the first embodiment described above, so the description thereof will be omitted. do.

As shown in FIGS. 10 to 12, the electromagnetic noise countermeasure member 1 according to the second embodiment includes a main body 10 and a mounting member 70.
As shown in FIGS. 13 and 14, the mounting member 70 provided in the electromagnetic noise countermeasure member 1 according to the second embodiment includes a fixing part 71 for fixing the holding member 20, and an upper part from the fixing part 71. A first protrusion 72 and a second protrusion 73 that protrude, a first attachment part 74 that protrudes forward from the front end 71b of the fixing part 71, and a first mounting part 74 that is formed upright from the rear edge 71a of the fixing part 71. The second mounting part 75 , the left side wall 77 rising from the left edge 71 c of the fixing part 71 , the right side wall 78 rising from the right edge 71 d of the fixing part 71 , and the electromagnetic shielding member 62 of the wire harness 60 (FIG. 15).

In this embodiment, the fixing part 71 is formed into a plate shape, and a first protrusion part 72 and a second protrusion part 73, which are spaced apart from each other, are formed on the upper plate surface of the fixing part 71 to protrude upward. There is. The first protrusion 72 is located inside the right side wall 78 and faces the right side wall 78. The second protrusion 73 is located inside the left side wall 77 and faces the left side wall 77. The first protrusion 72 and the second protrusion 73 are arranged to face each other, and the first insertion hole 45 and the second insertion hole 48 provided in the second holding member 40 (FIG. 12) is placed in a position corresponding to The first protrusion 72 has a first locking hole 72a for locking the first locking protrusion 44a (FIG. 12). A second locking hole 73a for locking the second locking protrusion 47a (FIG. 12) is formed in the second protrusion 73. In this embodiment, the first protrusion 72 and the second protrusion 73 are each formed into a rectangular plate shape.

A bolt insertion hole 74a for inserting a bolt is formed vertically through the first mounting portion 74. In this embodiment, the first attachment portion 74 is formed into a substantially triangular shape in plan view. A connecting portion 76 is formed to protrude rearward from the second attachment portion 75 . The connecting portion 76 includes a flat portion 76a projecting rearward from the second mounting portion 75, a side wall 76b rising from the left end of the flat portion 76a, and a side wall 76c rising from the right end of the flat portion 76a. We are prepared.

As shown in FIG. 15(A), the wire harness 60 inserted into the main body 10 is located above the second attachment portion 75 and protrudes rearward. The lower surface and both side surfaces of the electromagnetic shielding member 62 are supported by a connecting portion 76 . That is, since the connecting portion 76 is provided around the wire harness 60 protruding from the through hole 12 formed between the magnetic core components 11 and 11 in the mounting member 70 to which the holding member 20 is attached, The electromagnetic shielding member 62 can be connected to the connecting portion 76 relatively easily. The electromagnetic shielding member 62 is electrically connected to the connecting portion 76 . As a result, the electromagnetic shielding member 62 and the mounting member 70 are electrically connected, so that the electromagnetic shielding member 62 can be grounded to the vehicle body through the mounting member 70 by attaching the mounting member 70 to a grounding point of the vehicle body.

Further, a portion of the electromagnetic shielding member 62 that is supported by the connecting portion 76 is fastened to the connecting portion 76 by the fixing band 63. This makes the electrical connection between the electromagnetic shielding member 62 and the mounting member 70 even more reliable, so even if the electromagnetic noise countermeasure member 1 vibrates, the electromagnetic shielding member 62 can be grounded to the vehicle body. It is possible to make it difficult for the state to be released. The mounting member 70 is made of a conductive material such as iron or aluminum, and can be manufactured by die casting.

[Effects of second embodiment]
(1) According to the electromagnetic noise countermeasure member 1 according to the second embodiment described above, the attachment member 70 for attaching the holding member 20 to a predetermined location of the vehicle is formed of a conductive material, and the wire harness Since it is configured to be electrically connectable to the electromagnetic shielding member 62 of 60, the electromagnetic shielding member 62 can be grounded by attaching the mounting member 70 to which the electromagnetic shielding member 62 is electrically connected to the grounding point of the vehicle. Therefore, the work of grounding the electromagnetic shielding member 62 can be reduced.

(2) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the second embodiment described above, the connection portion 76 for electrically connecting with the electromagnetic shielding member 62 of the wire harness 60 is attached to the attachment member 20 fixed thereto. Since the member 70 is provided around the opening 12a of the through hole 12, the electromagnetic shielding member 62 can be electrically connected to the connecting portion 76 relatively easily.
Therefore, according to the electromagnetic noise countermeasure member 1 according to the second embodiment, it is possible to provide an electromagnetic noise countermeasure member that can improve the work efficiency for applying electromagnetic countermeasures to the wire harness 60.

(3) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the second embodiment described above, there is no need to provide a specific member necessary for grounding the electromagnetic shielding member 62 on the wire harness 60 and the ground side. , the degree of freedom for grounding the electromagnetic shielding member 62 can be increased accordingly.

(4) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the second embodiment described above, the fixed part 71 has a first protrusion 72 and a second protrusion 73 that are spaced apart from each other and protrude upward. One end (first end 43) of the holding member 20 that is orthogonal to the axial direction of the magnetic core held on the inner surface of the holding member 20 has a first A first insertion hole 45 for inserting the protrusion 72 and a first locking piece 44 for locking the first protrusion 72 inserted into the first insertion hole 45 are provided. The other end (second end 46) of both ends has a second insertion hole 48 for inserting the second protrusion 73, and a second insertion hole 48 for inserting the second protrusion 73 into the second insertion hole 48. A second locking piece 47 for locking the second protrusion 73 is provided.
That is, according to the electromagnetic noise countermeasure member 1 according to the second embodiment described above, since the holding member 20 can be locked to the fixing part 71 at both ends, the attachment strength of the holding member 20 can be increased.
Therefore, even if the grounding point to which the mounting member 70 is attached vibrates, the amplitude of the vibration of the holding member 20 can be reduced, so that the magnetic core held by the holding member 20 is not affected by the vibration. You can avoid it.
Furthermore, damage such as chipping or cracking of the magnetic core component 11 can be made less likely to occur due to vibration.
(5) Further, since the left side wall 77 and the right side wall 78 are arranged outside both ends of the holding member 20, both ends of the holding member 20 can be protected from external collisions.

<Third embodiment>
Next, an electromagnetic noise countermeasure member according to a third embodiment of the present invention will be described with reference to the drawings. Note that the main body included in the electromagnetic noise countermeasure member according to the third embodiment has the same configuration as the main body 10 provided in the electromagnetic noise countermeasure member 1 according to the first embodiment described above, so the description thereof will be omitted. do.

As shown in FIGS. 16 to 20, the clamp attachment member 100 included in the electromagnetic noise countermeasure member 1 according to the third embodiment includes a clamp member 80 and a pair of attachment members 90. As shown in FIG. 21, the clamping member 80 clamps the electromagnetic shielding member 62 of the wire harness 60 to the first holding member 30. The pair of attachment members 90 are used to attach the holding member 20 to a predetermined location on the vehicle, and are electrically connected to the clamping member 80 . As shown in FIGS. 19 and 20, the clamping member 80 is formed in a band shape. Further, as shown in FIG. 18, the clamping member 80 is formed in a shape corresponding to the outer peripheral surface of the holding member 20 that is perpendicular to the axial direction of the wire harness 60 inserted into the through hole 12. The clamping member 80 and each mounting member 90 are each made of a conductive material such as iron or aluminum, and can be manufactured by press molding.

As shown in FIGS. 19(B) and 20, the holding member 80 includes a plate-shaped flat part 81 and a plate-shaped left inclined part 82 extending diagonally downward to the left from the left end of the flat part 81 in the longitudinal direction. , a plate-shaped left hanging part 83 hanging from the tip of this left inclined part 82 , a plate-shaped right inclined part 84 extending diagonally downward to the right from the right end in the longitudinal direction of the flat part 81 , and this right inclined part 84 . It has a plate-shaped right hanging portion 85 hanging from the tip. Also, a boundary between the flat portion 81 and the left inclined portion 82, a boundary between the left inclined portion 82 and the left hanging portion 83, a boundary between the flat portion 81 and the right inclined portion 84, a boundary between the right inclined portion 84 and the right hanging portion 85. A bent portion 86 is formed in each of the portions. Each bent portion 86 is formed to have an outwardly bulging arcuate cross section, and serves as a rib that increases the strength at each boundary. A locking hole 83a for locking the second locking projection 47a (FIG. 18) of the second locking piece 47 is formed in the left hanging portion 83, and a locking hole 83a for locking the second locking protrusion 47a (FIG. 18) of the second locking piece 47 is formed in the left hanging portion 83. A locking hole 85a for locking the first locking protrusion 44a of the first locking piece 44 is formed.

As shown in FIGS. 19(C), (D) and FIG. 20, the mounting member 90 is a locking member having a U-shaped cross section and having a first locking member 91 and a second locking member 92 facing each other. 95 and a base member 94 coupled to the second locking member 92. A bolt insertion hole 94a through which a bolt 110 (FIG. 26) is inserted is formed in the base member 94. The first locking member 91, the second locking member 92, and the base member 94 are each formed into a plate shape. The upper ends of the first locking member 91 and the second locking member 92 are connected by an upper wall 93. One end of a base member 94 is coupled to the lower end of the plate surface of the second locking member 92 . In the figure, the locking member 95 has a cross-sectional shape of an upside-down U-shape, and the upper wall 93 corresponds to the bottom of the U-shape. The first locking member 91 also has a first locking protrusion 44a (FIG. 18) of the first locking piece 44 or a second locking protrusion 47a of the second locking piece 47. A locking hole 91a for locking is formed. Further, at the tip (other end) of the base member 94, an inclined portion 94b that is inclined diagonally upward is formed.

As shown in FIG. 18, the right hanging portion 85 of the clamping member 80 is inserted from above into the first insertion hole 45 formed in the first end 43 of the second holding member 40, and the right hanging portion 85 The first locking protrusion 44a of the first locking piece 44 is locked in the locking hole 85a. Further, the left hanging portion 83 of the clamping member 80 is inserted from above into the second insertion hole 48 formed in the second end portion 46 of the second holding member 40, and is inserted into the locking hole 83a of the left hanging portion 83. The second locking protrusion 47a of the second locking piece 47 is locked.

Further, the first locking member 91 of one of the mounting members 90 is inserted from above between the first outer wall 43a and the right hanging portion 85 of the first insertion hole 45, and is inserted into the first insertion hole 45 between the first outer wall 43a and the right hanging portion 85. The first locking protrusion 44a of the first locking piece 44 is locked in the locking hole 91a (FIG. 19) of the locking member 91. The locking hole 85a of the right hanging part 85 inserted into the first insertion hole 45 and the locking hole 91a of the first locking member 91 overlap each other, and the locking hole of the right hanging part 85 overlaps with each other. The first locking protrusion 44a that is locked to the locking hole 85a projects from the locking hole 85a and is locked to the locking hole 91a of the first locking member 91. That is, the first locking protrusion 44a is locked in the locking hole 85a of the right hanging portion 85 and the locking hole 91a of the first locking member 91. Thereby, the right hanging portion 85 and the first locking member 91 are prevented from coming off from the first insertion hole 45, and the right hanging portion 85 and the first locking member 91 are electrically connected to each other. be done.

Further, the first locking member 91 of the other mounting member 90 is inserted from above between the second outer wall 46a and the left hanging portion 83 of the second insertion hole 48, and is inserted into the second insertion hole 48 from above. The second locking protrusion 47a of the second locking piece 47 is locked in the locking hole 91a (FIG. 19) of the locking member 91. The locking hole 83a of the left hanging portion 83 inserted into the second insertion hole 48 and the locking hole 91a of the first locking member 91 overlap each other, and the locking hole 83a of the left hanging portion 83 is overlapped with each other. The second locking protrusion 47a locked to the locking hole 83a projects from the locking hole 83a and is locked to the locking hole 91a of the first locking member 91. That is, the second locking protrusion 47a is locked in the locking hole 83a of the left hanging portion 83 and the locking hole 91a of the first locking member 91. As a result, the left hanging portion 83 and the first locking member 91 are prevented from coming off from the second insertion hole 48, and the left hanging portion 83 and the first locking member 91 are electrically connected to each other. be done.

As shown in FIG. 21, the electromagnetic shielding member 62 of the wire harness 60 inserted into the main body 10 covers the upper surface of the first holding member 30 and the inclined surfaces on both sides continuous with the upper surface. This portion is held by the holding member 80 and the first holding member 30. The electromagnetic shielding member 62 is electrically connected to the mounting members 90 on both sides through the clamping member 80 . Therefore, by attaching each attachment member 90 to a grounding point on the vehicle body, the electromagnetic shielding member 62 is grounded to the vehicle body.

[Effects of third embodiment]
(1) According to the electromagnetic noise countermeasure member 1 according to the third embodiment described above, the clamping member 80 and each attachment member 90 for attaching the holding member 20 to a predetermined location of the vehicle are each made of a conductive material. and is configured to be electrically connectable to the electromagnetic shielding member 62 of the wire harness 60. Therefore, by attaching each mounting member 90 to which the electromagnetic shielding member 62 is electrically connected to the grounding point of the vehicle body, the electromagnetic shielding can be achieved. Since the member 62 is grounded to the vehicle body, the work of grounding the electromagnetic shielding member 62 can be reduced.

(2) Moreover, according to the electromagnetic noise countermeasure member 1 according to the third embodiment described above, by holding the electromagnetic shielding member 62 between the clamping member 80 and the holding member 20, the electromagnetic shielding member 62 can be attached to each mounting member 90. Since electrical connection can be made, work efficiency for grounding the electromagnetic shielding member 62 can be improved.
Therefore, according to the electromagnetic noise countermeasure member 1 according to the third embodiment, it is possible to provide an electromagnetic noise countermeasure member that can improve the work efficiency for applying electromagnetic countermeasures to the wire harness 60.

(3) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the third embodiment described above, there is no need to provide a specific member necessary for grounding the electromagnetic shielding member 62 on the wire harness 60 and the ground side. , the degree of freedom for grounding the electromagnetic shielding member 62 can be increased accordingly.

(4) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the third embodiment described above, the pair of mounting members 90, 90 Since both ends (orthogonal ends) can be attached to the grounding point, the attachment strength of the holding member 20 can be increased compared to a structure in which only one end of the holding member 20 is attached to the grounding point.
Therefore, even if the grounding point to which each mounting member 90 is attached vibrates, the amplitude of the vibration of the holding member 20 can be reduced, so that the magnetic core held by the holding member 20 is not affected by the vibration. You can prevent this from happening.
Furthermore, damage such as chipping or cracking of the magnetic core component 11 can be made less likely to occur due to vibration.

<Fourth embodiment>
Next, an electromagnetic noise countermeasure member according to a fourth embodiment of the present invention will be described with reference to the drawings. The pair of mounting members included in the electromagnetic noise countermeasure member according to the fourth embodiment have the same configuration as the pair of mounting members 90 provided in the electromagnetic noise countermeasure member 1 according to the first embodiment described above. Therefore, their explanation will be omitted.

As shown in FIG. 22, the holding member 20 included in the electromagnetic noise countermeasure member 1 according to the fourth embodiment includes a third end 49 at the front. A third insertion hole 49a for inserting the first locking member 91 of the mounting member 90 from above is formed in the third end portion 49. A third locking piece 49b that locks into the locking hole 91a (FIG. 19) of the first locking member 91 is provided. In other words, the holding member 20 has a first end 43 and a second end 46 provided on both the left and right sides, as well as a third end 49 provided at the front, and the attachment member 90 is attached to both the left and right sides. In addition to locking the front part, the front part can also be locked.

In the usage example shown in FIGS. 22 to 24, the first locking member 91 of one mounting member 90 is inserted into the first insertion hole 45 from above, and the first locking member 91a of the first locking member 91 is inserted into the first insertion hole 45 from above. (FIG. 19), the first locking protrusion 44a of the first locking piece 44 is locked. Further, the first locking member 91 of the other mounting member 90 is inserted into the second insertion hole 48 from above, and the second locking member 91a (FIG. 19) of the first locking member 91 is inserted into the second insertion hole 48 from above. The second locking protrusion 47a of the locking piece 47 is locked.

In the usage example shown in FIG. 25, the outer circumferential surface and front surface of the holding member 20 are covered by the electromagnetic shielding member 62 of the wire harness 60. Of the electromagnetic shielding member 62 that covers the outer peripheral surface and front surface of the holding member 20, the portion that covers the side surface located on the first end 43 (FIG. 24) side of the holding member 20 is connected to the first end of the mounting member 90. It is held between the locking member 91 (FIGS. 19 and 24) and the first locking piece 44, and the gripped portion is press-fitted into the locking hole 91a by the first locking protrusion 44a. (not shown). This electrically connects the electromagnetic shielding member 62 and the mounting member 90, and makes it difficult for the clamped electromagnetic shielding member 62 to come off upward.

Further, of the electromagnetic shielding member 62 that covers the outer peripheral surface of the holding member 20, the portion that covers the side surface located on the second end 46 (FIG. 24) side of the holding member 20 is connected to the first end of the mounting member 90. It is held between the locking member 91 (FIGS. 19 and 24) and the second locking piece 47, and the gripped portion is press-fitted into the locking hole 91a by the second locking protrusion 47a. (not shown). This electrically connects the electromagnetic shielding member 62 and the mounting member 90, and makes it difficult for the clamped electromagnetic shielding member 62 to come off upward.
When the electromagnetic shielding member 62 is grounded, the portions of the electromagnetic shielding member 62 that cover the holding member 20 that cover both side surfaces of the holding member 20 are grounded together with the first locking member 91 of the mounting member 90. When inserted into the insertion hole 45 and the second insertion hole 48, respectively, the electromagnetic shielding member 62 and each mounting member 90 can be electrically connected. When each mounting member 90 that locks the holding member 20 is attached to a grounding point of a vehicle, the portion where the holding member 20 is in contact with the vehicle may be a place where grounding is possible or a place where grounding is impossible. good.

[Effects of the fourth embodiment]
(1) According to the electromagnetic noise countermeasure member 1 according to the fourth embodiment described above, each attachment member 90 for attaching the holding member 20 to a predetermined location of the vehicle is formed of a conductive material, and Since it is configured to be electrically connectable to the electromagnetic shielding member 62 of the wire harness 60, the electromagnetic shielding member 62 can be connected to the vehicle by attaching each mounting member 90 to which the electromagnetic shielding member 62 is electrically connected to the grounding point of the vehicle. Since the electromagnetic shielding member 62 is grounded, the work of grounding the electromagnetic shielding member 62 can be reduced.

(2) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the fourth embodiment described above, a part of the electromagnetic shielding member 62 that covers the holding member 20 is attached to the first locking member 91 of the mounting member 90. By inserting the electromagnetic shielding member 62 into the first insertion hole 45 and the second insertion hole 48, the electromagnetic shielding member 62 and each mounting member 90 can be electrically connected. can be increased.
Therefore, according to the electromagnetic noise countermeasure member 1 according to the fourth embodiment, it is possible to provide an electromagnetic noise countermeasure member that can improve the work efficiency for applying electromagnetic countermeasures to the wire harness 60.

(3) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the fourth embodiment described above, there is no need to provide a specific member necessary for grounding the electromagnetic shielding member 62 on the wire harness 60 and the ground side. , the degree of freedom for grounding the electromagnetic shielding member 62 can be increased accordingly.

(4) Furthermore, according to the electromagnetic noise countermeasure member 1 according to the fourth embodiment described above, the pair of mounting members 90, 90 (both orthogonal ends) can be attached to the ground point. Further, in addition to both ends of the holding member 20, the front end can also be attached to the grounding point.
In other words, the mounting strength of the holding member 20 can be increased compared to a structure in which only one end of the holding member 20 is attached to a grounding point.
Therefore, even if the grounding point to which each mounting member 90 is attached vibrates, the amplitude of the vibration of the holding member 20 can be reduced, so that the magnetic core held by the holding member 20 is not affected by the vibration. You can prevent this from happening.
Furthermore, damage such as chipping or cracking of the magnetic core component 11 can be made less likely to occur due to vibration.

[Features of mounting member 90]
Next, features of the mounting member 90 will be explained with reference to the drawings.
FIG. 26 is a perspective view showing an example of a usage state of the electromagnetic noise countermeasure member according to the fourth embodiment. In the figure, the electromagnetic shielding member 62 is omitted. As shown in the figure, mounting members 90 are respectively locked to both ends of the holding member 20, and each mounting member 90 is mounted to a predetermined location 200 of the vehicle by a bolt 110 inserted through a base member 94. ing. The predetermined location 200 is made of a conductive material and is also a grounding location.

As shown in FIG. 27(A), the first locking member 91 of the mounting member 90 is inserted into the second insertion hole 48 formed at the end of the second holding member 40, and the second The second locking protrusion 47a of the locking piece 47 is locked in the locking hole 91a of the first locking member 91. In this state, gaps are formed on both sides of the first locking member 91, and the first locking member 91 is in a state where it can move slightly in the left and right direction, a state where so-called backlash may occur. ing.
The base member 94 constituting the mounting member 90 is formed such that the inclined portion 94b side is one end and the other end, that is, the boundary side between the base member 94 and the second locking member 92 is lifted upward. There is. In the illustrated example, the base member 94 is warped (slanted) toward the upper left. Moreover, the tip 91b of the first locking member 91 is in a state floating above the upper surface 200a of the predetermined location 200 of the vehicle. Further, a gap S is formed between the upper end of the second outer wall 46a provided on the second holding member 40 and the upper wall 93 of the mounting member 90. Further, the distance between the tip 91b of the first locking member 91 and the upper surface 200a of the predetermined location 200 of the vehicle is longer than the distance of the gap S in the vertical direction.

As shown in FIG. 27(B), when the bolt 110 is inserted into the bolt insertion hole 94a of the base member 94 and fastened to a predetermined location 200 of the vehicle, the bolt 110 presses the base member 94, causing the base member 94 to warp. is fixed and becomes flat. When the base member 94 becomes flat, the other end of the base member 94 is lowered, so that the upper wall 93 is lowered by that amount, and the upper wall 93 presses the upper end of the second outer wall 46a. Furthermore, by lowering the other end of the base member 94, the first locking member 91 and the second locking member 92 are each tilted inward. As a result, the upper end of the outer surface of the first locking member 91 presses the upper end of the second locking piece 47, and the lower end of the inner surface of the first locking member 91 presses the lower end of the inner surface of the second outer wall 46a. become. In other words, the first locking member 91 cannot move in the left-right direction inside the second insertion hole 48, and there is no possibility that so-called backlash will occur. Moreover, since the second locking member 92 is pressed against the upper end of the outer surface of the second outer wall 46a, there is no possibility that the second locking member 92 will play.

As described above, when the holding member 20 is attached to the predetermined location 200 of the vehicle using the mounting member 90, no looseness occurs between the mounting member 90 and the holding member 20 even when the vehicle body vibrates, so the bolt 110 becomes loose. hard. Further, it is possible to suppress the generation of abnormal noise due to rattling.

[Technical features of electromagnetic noise countermeasure member equipped with a pair of mounting members 90]
The electromagnetic noise countermeasure member including the pair of mounting members 90 described above has the following technical features.
a magnetic core surrounding a wire covered with an electromagnetic shielding member;
a holding member formed of a non-conductive material for holding the magnetic core on its inner surface;
An electromagnetic noise countermeasure member comprising: a mounting member for mounting the holding member at a predetermined location;
The mounting member includes a first mounting member and a second mounting member,
The first mounting member and the second mounting member are each formed of a conductive material and are configured to be electrically connectable to the electromagnetic shielding member,
Further, a locking member having a U-shaped cross section and having a first locking member and a second locking member facing each other;
a base member that is coupled to the second locking member and has an insertion hole through which a fixing member for fixing to the predetermined location is inserted;
Among the holding members,
The first locking member of the first mounting member is inserted from the tip into one end of both ends perpendicular to the axial direction of the magnetic core held on the inner surface of the holding member, and is clamped. a first clamping portion is provided,
A second clamping part is provided at the other end of the both ends, into which the first locking member of the second mounting member is inserted from the tip and clamped.

<Other embodiments>
(1) The electromagnetic noise countermeasure member 1 according to each of the embodiments described above can be applied to electric wires other than wire harnesses, and can be applied to electric wires used for electric equipment as well as electric wires used for vehicles. .
(2) The location or number of the first attachment portions 54 (57, 74) can be changed. For example, the first attachment part 54 can be arranged at both left and right ends or one end of the fixing part 51. Furthermore, the location or number of second attachment portions 55 (75) can be changed. For example, the second attachment portion 55 can be formed upright from one or both of the left and right ends of the fixing portion 51. According to the electromagnetic noise countermeasure member having this configuration, the main body 10 can be attached even if the predetermined locations 200 exist in the direction of both ends of the main body 10.
(3) The mounting member 50 (FIG. 1) or the mounting member 70 (FIG. 10) can also be formed into a box shape. According to the electromagnetic noise countermeasure member having this configuration, the upper side and both sides of the main body 10 can be protected from external collisions.

1 Electromagnetic noise countermeasure member 10 Main body 11 Magnetic core component 12 Through hole 20 Holding member 30 First holding member 40 Second holding member 43 First end 44 First locking piece 45 First insertion hole 46 Second end 47 Second locking piece 48 Second insertion hole 50 Mounting member 51 Fixing part 54 First mounting part 55 Second mounting part 56 Connection part 52 First protrusion 52a First engagement Stopping hole 53 Second protrusion 53a Second locking hole 60 Wire harness 61 Insulated conductor 62 Electromagnetic shielding member 80 Clamping member 90 Mounting member 100 Clamping mounting member 200 Predetermined location

Claims (4)

A magnetic core that surrounds the portion of the insulated conductor that is not covered by the electromagnetic shielding member among the electric wires in which part of the insulated conductor is not covered by the electromagnetic shielding member;
a holding member formed of a non-conductive material for holding the magnetic core on its inner surface;
a mounting member made of a conductive material for mounting the holding member at a predetermined location, the mounting member having a connection portion for electrically connecting with the electromagnetic shielding member;
An electromagnetic noise countermeasure member comprising a clamping member that clamps the electromagnetic shielding member with the holding member and is electrically connectable to the mounting member . The magnetic core includes:
A through hole is formed through which the insulated conductor in a portion not covered by the electromagnetic shielding member is inserted,
The electromagnetic noise countermeasure member according to claim 1, wherein the connecting portion is provided around the opening of the through hole in the mounting member. The mounting member includes:
a fixing part for fixing the holding member;
a first attachment part formed in a first direction from the fixing part and for attaching the attachment member to a first grounding point;
a second mounting part formed in a second direction different from the first direction from the fixing part and for mounting the mounting member to a second grounding point different from the first grounding point; 3. The electromagnetic noise countermeasure member according to claim 1 , further comprising: . The fixed part includes
a first protrusion and a second protrusion spaced apart from each other, each protrudingly formed;
Among the holding members,
a first insertion hole for inserting the first protrusion at one end of both ends perpendicular to the axial direction of the magnetic core held on the inner surface of the holding member;
a first locking member for locking the first protrusion inserted into the first insertion hole,
a second insertion hole for inserting the second protrusion at the other end of the both ends;
The electromagnetic noise countermeasure member according to claim 3 , further comprising: a second locking member for locking the second protrusion inserted into the second insertion hole. .

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