JP7188966B2 - Noise filter and wire harness - Google Patents

Description

The present invention relates to noise filters and wire harnesses.

2. Description of the Related Art Conventionally, there has been known a technique of interposing a noise filter in an electric wire to be noise-reduced in order to reduce electrical noise carried on the electric wire. The noise filter has a filter circuit provided with a noise reduction element such as a capacitor, and the filter circuit is interposed between the noise reduction target wire and the ground terminal. This type of noise filter is disclosed, for example, in Patent Documents 1 and 2 below.

JP 2006-100061 A Japanese Unexamined Patent Application Publication No. 2012-039201

By the way, in the conventional noise filter, another intermediate electric wire connects between the electric wire to be noise-reduced and the filter circuit. For example, in the noise filter of Patent Document 1, a filter circuit is electrically connected to two branch wires branched from a noise reduction target wire of a main line, and noise components on the noise reduction target wire are detected. is reduced. Therefore, with conventional noise filters, it is necessary to adjust the filter circuit characteristics (resonance point, noise reduction performance, etc.), taking into account the noise components that are carried on intermediate wires such as branch wires. .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a noise filter and a wire harness which are not affected by intermediate electric wires.

In order to achieve the above object, a noise filter according to the present invention includes a noise reduction element that reduces noise components, a first electric wire and a second electric wire that run side by side in a direction orthogonal to the axial direction and the arrangement direction of the first electric wire. conductive first circuit connection members arranged side by side and electrically connected to the first connection portions of the noise reduction elements; a filter circuit comprising a conductive second circuit connection member arranged side by side with the second wire in the orthogonal direction and electrically connected to the second connection portion of the noise reduction element; a filter circuit and a housing for accommodating the first electric wire and the second electric wire running in parallel, wherein the first circuit connecting member and the second circuit connecting member are each molded into a plate shape from a conductive material wherein the first circuit connection member is arranged side by side with a gap in the orthogonal direction with respect to the first electric wire, and is physically connected to the first connection portion of the noise reduction element. and a first element-side connector that is electrically connected; and a first wire-side connector that is indirectly or directly electrically connected to an intermediate connection portion of the core wire of the first wire in the orthogonal direction; are arranged side by side in the axial direction, the second circuit connection member is arranged side by side with a gap in the orthogonal direction with respect to the second electric wire, and the second a second element-side connector that is physically and electrically connected to the connection portion; Two wire-side connectors are provided side by side in the axial direction, and the first wire-side connector and the second wire-side connector are each capable of bending within an elastic range in the orthogonal direction. The housing includes a first clamping body that indirectly or directly clamps the intermediate connection portion of the first wire between the first wire side connectors, and the second wire side and a second clamping body that indirectly or directly clamps the intermediate connection portion of the second electric wire between itself and the connecting body .

Here, the housing has an element housing chamber in which the noise reduction element is housed, and has an engaging body of a fixing mechanism that engages with the fixed object in the orthogonal direction. It is preferable that the element accommodating chamber and the engaging member are arranged side by side in the axial direction.

Further, the first element side connection body physically and electrically connects the first connection portion of the noise reduction element to the side opposite to the first electric wire in the orthogonal direction, and the second element side connection. It is desirable that the body physically and electrically connect the second connecting portion of the noise reduction element on the opposite side of the second wire in the orthogonal direction.

The first element-side connection body physically and electrically connects the first connection portion of the noise reduction element to the first wire side in the orthogonal direction, and the second element-side connection body: It is desirable to physically and electrically connect the second connection portion of the noise reduction element to the second wire side in the orthogonal direction.

Further, the housing has an element housing chamber for housing the noise reduction element inside, and an engaging body of a fixing mechanism that engages with the object to be fixed is positioned outside in the orthogonal direction. The element housing chamber and the engaging body are arranged so as to protrude from the wall surface, and the first circuit connecting member is disposed on the installed wall body having the outer wall surface on which the engaging body is provided. It has a first installation wall that is installed and on which the first wire side connection is formed, and the second circuit connection member is installed on the installed wall and is connected to the second wire side connection. The first element-side connection body is offset from the first installation wall in the orthogonal direction and accommodated in the element accommodation chamber, physically and electrically connect the first connecting portion of the noise reduction element to the first electric wire side of the second element side connecting body, the second element side connecting body is offset with respect to the second installation wall in the orthogonal direction It is desirable to physically and electrically connect the second connection portion of the noise reduction element to the second wire side in the orthogonal direction.

Further, in order to achieve the above object, a wire harness according to the present invention includes a main line including a first electric wire and a second electric wire, and a noise filter for reducing noise components, wherein the noise filter reduces noise components. a noise reduction element that runs parallel to the first electric wire and the second electric wire are arranged side by side in a direction orthogonal to the axial direction and the arrangement direction of the first electric wire, and the first connection portion of the noise reduction element is electrically a conductive first circuit connection member that is directly connected, and arranged side by side with respect to the first circuit connection member in the arrangement direction with a gap therebetween and arranged side by side with the second wire in the orthogonal direction; and a filter circuit including a conductive second circuit connection member to which the second connection portion of the noise reduction element is electrically connected; and a housing, wherein the first circuit connection member and the second circuit connection member are each formed of a conductive material into a plate shape, and the first circuit connection member extends in the orthogonal direction. a first element-side connection body arranged side by side with a gap in the first wire and physically and electrically connected to the first connection portion of the noise reduction element; and a first wire-side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the first wire in the direction of the first wire, provided side by side in the axial direction, and the second circuit A connection member is arranged side by side with respect to the second wire with a gap in the orthogonal direction, and is a second element physically and electrically connected to the second connection portion of the noise reduction element. A side connector and a second wire side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the second wire in the orthogonal direction are provided side by side in the axial direction. wherein each of the first wire-side connector and the second wire-side connector is formed in a shape capable of being bent within an elastic region in the orthogonal direction, and the housing is configured to accommodate the first wire-side connection The intermediate connection portion of the second electric wire is indirectly held between a first clamping body that indirectly or directly clamps the intermediate connection portion of the first electric wire between bodies, and the second electric wire side connector. and a second clamping body that clamps directly or directly .

In the noise filter according to the present invention, by electrically interposing the filter circuit between the intermediate connection portion of the first wire and the intermediate connection portion of the second wire, the filter circuit is connected to each intermediate connection portion. are electrically connected. For example, the first electric wire and the second electric wire are bundled with the main wire of the wire harness. Therefore, this noise filter does not require the conventional adjustment of the filter circuit characteristics in consideration of the influence of branch wires (intermediate wires) from the main line. That is, the noise filter according to the present invention is not affected by the intermediate electric wire. Furthermore, in the noise filter according to the present invention, the first and second wires and the filter circuit are arranged side by side in the stacking direction. The interval in the arrangement direction between the circuit connecting member and the second circuit connecting member can be narrowed. Therefore, the noise filter according to the present invention can be miniaturized in its arrangement direction. Moreover, the wire harness according to the present invention is provided with such a noise filter, and can produce the effect of obtaining this noise filter.

FIG. 1 is a perspective view showing a noise filter and wire harness of the embodiment. FIG. 2 is a perspective view of the noise filter and wire harness of the embodiment viewed from another angle. FIG. 3 is an exploded perspective view showing the noise filter and wire harness of the embodiment. FIG. 4 is an exploded perspective view of the noise filter and wire harness of the embodiment viewed from another angle. FIG. 5 is a cross-sectional view showing the X1-X1 line cross section and the X2-X2 line cross section of FIG. FIG. 6 is a cross-sectional view showing a part of the assembly process of the noise filter and the wire harness of the embodiment. FIG. 7 is a perspective view showing a filter circuit. FIG. 8 is a perspective view showing a storage box. FIG. 9 is a perspective view showing a cover. FIG. 10 is a perspective view showing a noise filter and wire harness of a modification. FIG. 11 is an exploded perspective view showing a noise filter and wire harness of a modification. FIG. 12 is an exploded perspective view of the noise filter and wire harness of the modification as seen from another angle. FIG. 13 is a cross-sectional view showing the X1-X1 line cross section and the X2-X2 line cross section of FIG. FIG. 14 is a cross-sectional view showing a part of the assembly process of the noise filter and the wire harness of the modification. FIG. 15 is a perspective view showing a modified filter circuit.

EMBODIMENT OF THE INVENTION Below, embodiment of the noise filter which concerns on this invention, and a wire harness is described in detail based on drawing. In addition, this invention is not limited by this embodiment.

[Embodiment]
One embodiment of a noise filter and wire harness according to the present invention will be described with reference to FIGS. 1 to 9. FIG.

Reference numeral 1 in FIGS. 1 to 6 indicates the noise filter of this embodiment. This noise filter 1 is a noise reduction device in which intermediate portions of two wires (a first wire WE1 and a second wire WE2) are connected by a filter circuit. A filter circuit reduces the electrical noise component on the other. The two electric wires are, for example, two of a plurality of electric wires included in the main line WT of the wiring harness WH of the vehicle, one electric wire being grounded as a ground wire and the other electric wire being used as a power supply wire. be done. A load such as a defogger or a high mount stop lamp is electrically connected to the power line. The noise filter 1 becomes one of the components of the wire harness WH by connecting to the two electric wires. In the wire harness WH illustrated below, the first electric wire WE1 is used as the power line, and the second electric wire WE2 is used as the ground wire. The first electric wire WE1 has one end electrically connected to a power source (for example, a secondary battery of a vehicle) and the other end electrically connected to a load. One end of the second electric wire WE2 is grounded. Each of the first electric wire WE1 and the second electric wire WE2 includes a conductive core wire WEa and an insulating coating WEb that covers the outer peripheral surface of the core wire WEa.

The noise filter 1 is a noise reduction device that includes a filter circuit 10 that reduces noise components (FIGS. 1 to 6). For example, the filter circuit 10 reduces electrical noise components on the first electric wire WE1. Furthermore, this noise filter 1 has a housing 20 that houses the filter circuit 10 (FIGS. 1 to 6). In this noise filter 1, the first electric wire WE1 and the second electric wire WE2 are accommodated in parallel arrangement in the accommodation chamber 20a of the housing 20, and the first electric wire WE1 and the second electric wire are arranged in the accommodation chamber 20a. Run side by side with WE2. Here, an intermediate connection portion WEa1 of the first electric wire WE1 and an intermediate connection portion WEa2 of the second electric wire WE2 described below are accommodated in the accommodation chamber 20a, and both end sides of the first electric wire WE1 and the second electric wire WE2 are connected to the housing 20. is pulled outward.

The filter circuit 10 is electrically interposed between a portion of the core wire WEa located in the intermediate portion of the first electric wire WE1 and a portion of the core wire WEa located in the intermediate portion of the second electric wire WE2. Hereinafter, a portion of the core wire WEa located in the intermediate portion of the first electric wire WE1 will be referred to as "intermediate connection portion WEa1", and a portion of the core wire WEa located in the intermediate portion of the second electric wire WE2 will be referred to as "intermediate connection portion WEa1". It is called an "intermediate connection portion WEa2". Further, hereinafter, the intermediate connection portion WEa1 of the core wire WEa of the first electric wire WE1 is simplified as “the intermediate connection portion WEa1 of the first electric wire WE1”, and the intermediate connection portion of the core wire WEa of the second electric wire WE2 The portion WEa2 is simply referred to as "the intermediate connection portion WEa2 of the second electric wire WE2". That is, the filter circuit 10 is electrically interposed between the intermediate connection portion WEa1 of the first electric wire WE1 and the intermediate connection portion WEa2 of the second electric wire WE2. and make an electrical connection (Fig. 2).

The filter circuit 10 includes at least one noise reduction element 11 that reduces noise components, and a conductive element electrically connected to a first connection portion (hereinafter referred to as a "first element connection body") of the noise reduction element 11. The first connection member (hereinafter referred to as "first circuit connection member") 12 of the electrical resistance and the second connection portion (hereinafter referred to as "second element connection body") of the noise reduction element 11 are electrically connected. and a conductive second connection member (hereinafter referred to as a “second circuit connection member”) 13 (FIGS. 2 to 7). Note that the illustration of the first element connection body and the second element connection body is omitted.

Any noise reduction element 11 may be used as long as it can reduce noise in the circuit configuration of the noise filter 1 . For example, the noise reduction element 11 can be a capacitor, a coil, or the like. The filter circuit 10 is provided with two capacitors as the noise reduction element 11, and is configured so that noise can be reduced by these two capacitors (FIGS. 2 to 7).

In this exemplary filter circuit 10, two noise reduction elements 11 are covered with an insulating molded body 14 (FIGS. 2 to 7). The molded body 14 is a molding agent injected between the two noise reduction elements 11 and the first element-side connection body 12a of the first circuit connection member 12 and the second element-side connection body 13a of the second circuit connection member 13. It also covers the connection portion between the two noise reduction elements 11 and the first element side connection body 12a and the connection portion between the two noise reduction elements 11 and the second element side connection body 13a.

The first circuit connection member 12 and the second circuit connection member 13 are conductive members that electrically connect each other through the noise reduction element 11 . Each of the illustrated first circuit connecting member 12 and second circuit connecting member 13 is formed as a plate-shaped bus bar from a conductive material such as metal.

In the housing chamber 20a, the first circuit connection member 12 is arranged side by side with the first electric wire WE1 in a direction orthogonal to the axial direction and the arrangement direction of the first electric wire WE1 and the second electric wire WE2. In addition, in the housing chamber 20a, the second circuit connection member 13 is arranged side by side with a gap in the arrangement direction of the first electric wire WE1 and the second electric wire WE2 running side by side with respect to the first circuit connection member 12, The first electric wire WE1 and the second electric wire WE2 are arranged side by side in a direction orthogonal to the axial direction and the arrangement direction of the first electric wire WE1 and the second electric wire WE2. In the following, when simply described as "axial direction", it indicates the axial direction of the first electric wire WE1 and the second electric wire WE2. In the following description, the term "arrangement direction" simply refers to the arrangement direction of the first electric wires WE1 and the second electric wires WE2 and the arrangement direction of the first circuit connection member 12 and the second circuit connection member 13. there is Further, hereinafter, the direction orthogonal to the axial direction and the arrangement direction of the first electric wires WE1 and the second electric wires WE2 is referred to as the "stacking direction".

The first circuit connection member 12 is formed by arranging a first element-side connector 12a and a first wire-side connector 12b side by side in the axial direction (FIGS. 2 to 7). The illustrated first circuit connection member 12 has a first installation wall 12c connected to the first element side connection 12a in the axial direction (FIGS. 2 to 7). It is fixed to the housing 20 via the body 12c. The first wire-side connector 12b is formed on the first installation wall 12c.

Specifically, the first element-side connection body 12 a is a portion physically and electrically connected to the first element connection body of the noise reduction element 11 . The first element-side connection bodies 12a are arranged side by side with a gap from the first electric wires WE1 in the stacking direction. On the other hand, the first wire-side connector 12b is a portion that is indirectly or directly electrically connected to the intermediate connection portion WEa1 of the first wire WE1 in the stacking direction. Therefore, the first wire-side connector 12b is arranged side by side with a gap or in contact with the intermediate connection portion WEa1 of the first wire WE1 in the stacking direction. The first wire-side connector 12b is formed in a shape that allows bending within the elastic region in the stacking direction.

The illustrated first-element-side connector 12a is formed in a rectangular flat plate shape having two sets of two pairs of opposite sides. The illustrated first element-side connector 12a physically and electrically connects the first element connector of the noise reduction element 11 to the plane opposite to the first electric wire WE1 in the stacking direction (FIGS. 3 to 4). 6). As the connection form, for example, welding, soldering, or the like is applied according to the form of the first element connecting body of the noise reduction element 11 .

In the illustrated first circuit connection member 12, the first installation wall 12c is connected to one of the first set of two side portions of the first element-side connection body 12a that are arranged to face each other. The illustrated first installation wall 12c is formed in a rectangular flat plate shape and arranged on the same plane as the first element-side connector 12a (FIGS. 3 to 7).

The first wire-side connector 12b in this example has a cantilever shape with the first element-side connector 12a side of the first installation wall 12c as a fixed end, and the free end side is laminated on the first installation wall 12c. It is formed so as to be offset in the direction toward the intermediate connection portion WEa1 of the first electric wire WE1 (FIGS. 3 to 6). The _first wire-side connector 12b is provided at its free end with a contact portion 12b1 for indirectly or directly electrically connecting to the intermediate connection portion WEa1 of the first wire WE1 (FIGS. 5 to 7). . In the illustrated _first wire-side connector 12b, the contact portion 12b1 is formed in a rectangular flat plate shape, and the contact portion 12b1 is formed by _two rectangular beam portions 12b2 arranged side by side with _a space therebetween in the arrangement direction. and the fixed end side (Figs. 5 to 7). In the first wire-side connector 12b, the _first installation wall 12c is arranged between the beams 12b2 in the arrangement direction.

Here, the contact portion 12b1 and the intermediate connection portion WEa1 of the _first electric wire WE1 are electrically connected indirectly. Therefore, a first wire connection member 31 physically and electrically connected to the intermediate connection portion WEa1 of the first wire WE1 is provided (FIGS. 1 to 6). The illustrated first wire connection member 31 is formed of a conductive material such as metal. For example, the first wire connection member 31 is physically and electrically connected to the intermediate connection portion WEa1 of the first wire WE1 by crimping while winding a rectangular metal plate around the intermediate connection portion WEa1 of the first wire WE1. It becomes a tubular member connected to The illustrated first wire connection member 31 is formed in a cylindrical shape (FIGS. 1 to 6).

The second circuit connection member 13 is formed by arranging a second element-side connector 13a and a second wire-side connector 13b side by side in the axial direction (FIGS. 2 to 6). The second circuit connection member 13 of this example has a second installation wall 13c connected to the second element side connection 13a in the axial direction (FIGS. 2 to 6). It is fixed to the housing 20 via the body 13c. The second wire-side connector 13b is formed on the second installation wall 13c.

Specifically, the second element-side connection body 13 a is a portion physically and electrically connected to the second element connection body of the noise reduction element 11 . The second element-side connection bodies 13a are arranged side by side with a gap with respect to the second electric wires WE2 in the stacking direction. On the other hand, the second wire-side connector 13b is a portion that is indirectly or directly electrically connected to the intermediate connection portion WEa2 of the second wire WE2 in the stacking direction. Therefore, the second wire-side connector 13b is arranged side by side with a gap or in contact with the intermediate connection portion WEa2 of the second wire WE2 in the stacking direction. The second wire-side connector 13b is formed in a shape that allows bending within the elastic region in the stacking direction.

The illustrated second element-side connector 13a is formed in a rectangular flat plate shape having two pairs of two sides arranged to face each other. The illustrated second element-side connection body 13a physically and electrically connects the second element connection body of the noise reduction element 11 to the plane opposite to the second electric wire WE2 in the stacking direction (FIGS. 3 to 4). 6). As the connection form, for example, welding, soldering, or the like is applied according to the form of the second element connecting body of the noise reduction element 11 .

In the illustrated second circuit connection member 13, the second installation wall 13c is connected to one of the first set of two opposing sides of the second element side connection 13a. The illustrated second installation wall 13c is formed in a rectangular flat plate shape and arranged on the same plane as the second element-side connector 13a (FIGS. 3 to 7).

The second wire-side connector 13b in this example has a cantilever shape with the second element-side connector 13a side of the second installation wall 13c as a fixed end, and the free end side is laminated on the second installation wall 13c. It is formed so as to be offset in the direction toward the intermediate connection portion WEa2 of the second electric wire WE2 (FIGS. 3 to 6). The second wire _- side connector 13b is provided at its free end with a contact portion 13b1 for indirectly or directly electrically connecting to the intermediate connection portion WEa2 of the second wire WE2 (FIGS. 5 to 7). . In the illustrated second wire-side connector 13b, the contact portion 13b1 is formed in _a rectangular flat plate shape, and the contact portion 13b1 is formed by _two rectangular beam portions 13b2 arranged side by side with _a space therebetween in the arrangement direction. and the fixed end side (Figs. 5 to 7). In the second wire-side connector 13b, the _second installation wall 13c is arranged between the beams 13b2 in the arrangement direction.

Here, the contact portion _13b1 and the intermediate connection portion WEa2 of the second electric wire WE2 are electrically connected indirectly. Therefore, a second wire connection member 32 physically and electrically connected to the intermediate connection portion WEa2 of the second wire WE2 is provided (FIGS. 1 to 6). The illustrated second wire connecting member 32 is formed of a conductive material such as metal. For example, the second wire connection member 32 is similar to the first wire connection member 31 and is formed in a cylindrical shape (FIGS. 1 to 6).

The illustrated first circuit connection member 12 is accommodated in the accommodation chamber 20a so that the first pair of opposing side portions of the first element side connector 12a are arranged to face each other in the axial direction. The illustrated second circuit connection member 13 is accommodated in the accommodation chamber 20a so that the first pair of opposing side portions of the second element side connector 13a are arranged to face each other in the axial direction. . In the housing chamber 20a, the first element-side connector 12a and the second element-side connector 13a are arranged with a space therebetween in the arrangement direction, and the first wire-side connector 12b and the second wire-side connector 12b are arranged side by side. The connecting bodies 13b are arranged with a space therebetween in the arrangement direction.

Here, when the first electric wire WE1 and the second electric wire WE2 are provided with a single wire such as a round conductor as the core wire WEa, the intermediate connection portions WEa1 and WEa2 are connected to the contact portions 12b ₁ and 13b ₁ respectively. It is also possible to make a direct electrical connection. That is, in this case, it is not necessary to provide the first wire connection member 31 and the second wire connection member 32 at the respective intermediate connection portions WEa1 and WEa2. Further, even if the first electric wire WE1 and the second electric wire WE2 are provided with an assembly of a plurality of strands as the core wire WEa, the plurality of strands at the respective intermediate connection portions WEa1 and WEa2 are thermally crimped. When the intermediate connection portions WEa1 and WEa2 are not provided with the first wire connection member 31 and the second wire connection member 32, the intermediate connection portions WEa1 and WEa2 are not provided with the first wire connection member 31 and the second wire connection member 32. Direct electrical connection may be made to each of the contact portions 12b ₁ and 13b ₁ .

The housing 20 is molded from an insulating material such as synthetic resin. The housing 20 has an accommodation chamber 20a inside for accommodating the filter circuit 10, the first wire WE1, and the second wire WE2 (FIGS. 1, 3, 5 and 6). The accommodation chamber 20a accommodates at least the filter circuit 10, the intermediate connection portion WEa1 of the first wire WE1, and the intermediate connection portion WEa2 of the second wire WE2. In the housing 20, each end portion of the first electric wire WE1 is pulled out from the inner storage chamber 20a, and each end portion of the second electric wire WE2 is drawn from the inner storage chamber 20a. pulled outwards. The housing 20 forms a storage chamber 20a by fitting a plurality of housing members together.

The illustrated housing 20 includes a housing box 21 as a first housing member provided with a housing chamber 20a, and a cover 22 as a second housing member (FIGS. 1 to 6).

The storage box 21 has a main wall 21a and a plurality of peripheral walls 21b-21e erected from the periphery of the main wall 21a (FIG. 2).

The main wall 21a is roughly divided into a rectangular flat plate-like _first main wall 21a1 and a rectangular flat plate-like _second main wall 21a2 arranged side by side in the axial direction. The wall 21a- ₁ and the second main wall 21a- ₂ are offset from each other in the stacking direction (FIGS. 4 to 6 and 8). Here, the volume of the storage chamber 20a whose bottom wall is the _second main wall 21a2 is offset so as to be larger than the volume of the storage chamber 20a whose bottom wall is the _first main wall 21a1. In the main wall body 21a, the first main wall body 21a- ₁ and the second main wall body 21a- ₂ are connected by a rectangular flat connecting wall body 21a- ₃ (FIGS. 5, 6 and 8). The connecting wall _21a3 has an orthogonal plane to the orthogonal direction.

Here, the housing 20 has an element housing chamber 20b in which the noise reduction element 11 is housed (FIGS. 3, 5 and 6). The element storage chamber 20b is formed inside the storage chamber 20a. Here, a room formed by offsetting the second main wall 21a- ₂ with respect to the first main wall 21a- ₁ is used as the element accommodation room 20b.

The _first main wall 21a1 is used as an installation wall on which the first installation wall 12c of the first wire-side connector 12b and the second installation wall 13c of the second wire-side connector 13b are installed. . For example, in the housing chamber 20a, the first installation wall 12c and the second installation wall 13c are placed on the inner wall surface of the _first main wall 21a1, and the first installation wall 12c and the second installation wall 12c are placed on the inner wall surface. The second installation wall 13c is fixed by each engaging mechanism (not shown). The engagement mechanism is, for example, a lock that holds the first installation wall 12c and the second installation wall 13c with engaging portions such as claws provided at a plurality of locations on the inner wall surface of the _first main wall 21a1. Mechanism. Here, the first main wall is formed by integrally forming the housing box 21 with the first installation wall 12c of the first wire-side connector 12b and the second installation wall 13c of the second wire-side connector 13b. A _first installation wall 12c and a second installation wall 13c may be installed on the body 21a1.

The container box 21 illustrated in this example has first to fourth flat plate-like peripheral walls 21b to 21e vertically extending from a main wall 21a in the same direction (FIG. 2). In this storage box 21, a first peripheral wall 21b and a second peripheral wall 21c are arranged to face each other, and a third peripheral wall 21d and a fourth peripheral wall 21e are arranged to face each other. In this housing box 21, a space surrounded by the main wall 21a and the first to fourth peripheral walls 21b to 21e serves as a housing chamber 20a. In this storage box 21, the _second main wall 21a2, part of the first peripheral wall 21b, part of the third peripheral wall 21d, part of the fourth peripheral wall 21e, and connecting wall _21a3 The enclosed space becomes the element housing chamber 20b.

In this illustrated housing box 21, the element housing chamber 20b housed in the element housing chamber 20b is connected to the first element side connector 12a of the first wire side connector 12b and the second element side of the second wire side connector 13b. It is covered with the connector 13a. Therefore, in this example, the noise reduction element 11 is connected in advance to the first element-side connector 12a and the second element-side connector 13a before the filter circuit 10 is accommodated in the accommodation chamber 20a.

This housing box 21 has a rectangular opening 21f formed by the edges of the first to fourth peripheral walls 21b-21e (FIG. 3).

The cover 22 is prepared to cover the opening 21f of the storage chamber 20a. The cover 22 has a closing wall 22a that closes the opening 21f when assembled with the storage box 21 (FIGS. 3 and 4). The cover 22 also has a plurality of peripheral walls 22b-22e erected from the periphery of the closing wall 22a (FIG. 4). The illustrated cover 22 consists of a rectangular plate-like closing wall 22a, and first to fourth flat plate-like peripheral walls 22b-- which extend in the same direction from four sides of the closing wall 22a. 22e. In this cover 22, a first peripheral wall 22b and a second peripheral wall 22c are arranged to face each other, and a third peripheral wall 22d and a fourth peripheral wall 22e are arranged to face each other.

In the illustrated case 20, when the housing box 21 and the cover 22 are completely assembled, the first peripheral wall members 21b and 22b are arranged to face each other, and the second peripheral wall members are arranged to face each other. 21c and 22c are arranged to face each other, the third peripheral wall bodies 21d and 22d are arranged to face each other, and the fourth peripheral wall bodies 21e and 22e are arranged to face each other.

In the housing 20, the first electric wire WE1 and the second electric wire WE2 are led out from the first peripheral wall members 21b, 22b arranged to face each other and the second peripheral wall members 21c, 22c arranged to face each other. Therefore, each of the first peripheral wall bodies 21b and 22b is provided with first outlets 21b ₁ and 22b ₁ for drawing out one end side of the first electric wire WE1 and one end of the second electric wire WE2. Second drawer ports 21b ₂ and 22b ₂ are formed to draw out the ends (FIGS. 3 and 4). In each of the first peripheral wall bodies 21b and 22b, the first outlets 21b ₁ and 22b ₁ are arranged to face each other, and the second outlets 21b ₂ and 22b ₂ are arranged to face each other. Further, the second peripheral wall bodies 21c and 22c are provided with third lead-out openings 21c ₁ and 22c ₁ for drawing out the other end side of the first electric wire WE1 and the other end of the second electric wire WE2. Fourth drawer openings 21c ₂ and 22c ₂ are formed to draw out the end portions outward (FIGS. 3 and 4). In each of the second peripheral wall bodies 21c and 22c, the third outlets 21c ₁ and 22c ₁ are arranged to face each other, and the fourth outlets 21c ₂ and 22c ₂ are arranged to face each other.

In the housing 20, the intermediate connection portion WEa1 of the first electric wire WE1 and the intermediate connection portion WEa2 of the second electric wire WE2 are accommodated in the accommodation chamber 20a through the opening 21f. When housing the first electric wire WE1 and the second electric wire WE2, in the housing box 21, the first electric wire WE1 is inserted into the first outlet 21b- ₁ and the third outlet 21c- ₁ , and the second electric wire WE2 is inserted into the second outlet 21c-1. It is inserted into the outlet 21b- ₂ and the fourth outlet 21c- ₂ . In the housing 20, the opening 21f is closed, the _{first wire WE1 is inserted into the first outlet} 22b1 and the third outlet 22c1, and the second wire WE2 is inserted into the _second outlet 22b2 and the third outlet 22b2. 4 The cover 22 is assembled to the storage box 21 so as to be inserted into the outlet _22c2 . For example, the noise filter 1 is fixed to the trunk line WT together with the first electric wire WE1 and the second electric wire WE2 with an adhesive tape (not shown) or the like, and is held by the trunk line WT. This completes the attachment of the noise filter 1 to the first electric wire WE1 and the second electric wire WE2.

Here, the housing 20 is fixed to a fixed object (not shown) such as a vehicle body. Therefore, the casing 20 is provided with an engaging member 23 of a fixing mechanism that engages with the object to be fixed so as to protrude from the outer wall surface positioned in the stacking direction (FIGS. 2 and 4 to 6). ). The fixing mechanism is a mechanism for fixing the noise filter 1 and the fixed object to each other. This fixing mechanism is provided to prevent the noise filter 1 from moving relative to an object to be fixed, thereby suppressing contact with peripheral parts of the noise filter 1 and improving sound and vibration performance. The engaging body 23 fixes the housing 20 to the fixed object by engaging with a counterpart engaging body (not shown) of the fixed object. As the fixing mechanism, a locking mechanism or the like is conceivable in which the engaging member 23 and the counterpart engaging member are engaged with each other by claw portions or the like. In this illustration, an engaging member 23 is provided on the outer wall surface of the _first main wall 21a1 of the storage box 21. As shown in FIG. Therefore, the _first main wall 21a1 serves as an installation wall on which the first installation wall 12c of the first wire-side connector 12b and the second installation wall 13c of the second wire-side connector 13b are installed. In addition, it is also used as a fixed wall for fixing the noise filter 1 to a fixed object. In this storage box 21, the element storage chamber 20b and the engaging member 23 are arranged side by side in the axial direction.

By the way, in this case 20, the main wall 21a of the storage box 21 and the closing wall 22a of the cover 22 are arranged to face each other in the stacking direction. In the housing 20, in a state where the housing box 21 and the cover 22 are completely assembled, the blocking wall 22a of the cover 22 is separated from the intermediate connection portion WEa1 of the first wire WE1 and the second wire in the stacking direction. It is arranged to face the intermediate connection portion WEa2 of WE2. Therefore, the intermediate connection portion WEa1 of the first electric wire WE1 is indirectly sandwiched between the inner wall surface of the blocking wall member 22a of the illustrated cover 22 and the first electric wire side connector 12b of the first circuit connection member 12. and a second clamping body 25 that indirectly clamps the intermediate connection portion WEa2 of the second electric wire WE2 between the first clamping body 24 and the second wire side connector 13b of the second circuit connection member 13. One each is provided (FIGS. 4 to 6 and 9).

The first clamping body 24 clamps the first wire connection member 31 between the contact portion 12b1 of the _first wire-side connector 12b and the intermediate portion of the _first wire WE1 between the contact portion 12b1 and the contact portion 12b1. The connecting portion WEa1 is indirectly sandwiched. The first clamping member 24 includes a cantilever piece 24a having a free end raised from the inner wall surface of the closing wall 22a of the cover 22, and provided at the free end of the piece 24a. and a pressurizing portion 24b that contacts and pressurizes the wire connecting member 31 (FIGS. 5, 6 and 9). The piece 24a may or may not have elasticity. Also, the pressurizing portion 24b is arranged to face the contact portion _12b1 in the electric wire clamping direction. Here, the pressing portion 24b is formed in a rectangular piece shape, and the _first wire connection member 31 is sandwiched between the respective planes of the pressing portion 24b and the contact portion 12b1.

In this illustration, two first holding bodies 24 are provided. The respective first clamping bodies 24 are provided on the inner wall surface of the closing wall body 22a of the cover 22 in opposite directions so that the pressing portions 24b of the respective first clamping bodies 24 are arranged to face each other in the axial direction. Each of the first clamping members 24 is provided with a locking protrusion 24c that bulges or protrudes from the pressurizing portion 24b toward the intermediate connection portion WEa1 of the first electric wire WE1 (FIGS. 5, 6 and 7). Figure 9). The locking protrusions 24c of the respective first holding bodies 24 are arranged to face each other in the axial direction. In each of the first holding bodies 24, one end of the first wire connection member 31 in the cylinder axis direction (axial direction) is locked by one locking protrusion 24c, and the other locking projection part 24c is locked in the cylinder axis direction (axial direction). Each locking protrusion 24c is formed so that the projection 24c locks the other end of the first wire connection member 31 in the cylinder axis direction (axial direction) in the cylinder axis direction. In this way, each of the first clamping bodies 24 clamps the first wire connection member 31 between itself and the contact portion 12b1 of the _first wire-side connector 12b, and the locking protrusions 24c hold the first wire connection member 31 between them. Since the axial movement of the first wire connecting member 31 is locked, the electrical connection state between the contact portion 12b1 and the _first wire connecting member 31 can be maintained. Therefore, this noise filter can improve the quality of the energization between the first electric wire WE1 and the filter circuit 10 .

The second clamping body 25 clamps the second wire connection member 32 with the contact portion 13b1 of the _second wire-side connector 13b, thereby holding the second wire WE2 between the contact portion _13b1 and the intermediate portion of the second wire WE2. The connecting portion WEa2 is indirectly sandwiched. The second clamping body 25 includes a cantilevered piece 25a having a free end raised from the inner wall surface of the closing wall 22a of the cover 22, and provided at the free end of the piece 25a. and a pressurizing portion 25b that contacts and pressurizes the wire connecting member 32 (FIGS. 5, 6 and 9). The piece 25a may or may not have elasticity. Further, the pressurizing portion 25b is arranged to face the contact portion _13b1 in the electric wire clamping direction. Here, the pressing portion 25b is formed in a rectangular piece shape, and the second wire connection member 32 is sandwiched between the respective planes of the pressing portion 25b and the contact portion _13b1 .

In this illustration, two second holding bodies 25 are provided. Each of the second clamping bodies 25 is provided on the inner wall surface of the closing wall body 22a of the cover 22 in opposite directions so that the pressurizing parts 25b of the two are arranged to face each other in the axial direction. Each of the second holding members 25 is provided with a locking protrusion 25c that bulges or protrudes from the pressurizing portion 25b toward the intermediate connection portion WEa2 of the second electric wire WE2 (FIGS. 5, 6 and 6). Figure 9). The locking protrusions 25c of the respective second holding bodies 25 are arranged to face each other in the axial direction. In each of the second clamping bodies 25, one end of the second wire connection member 32 in the cylindrical axis direction (axial direction) is locked by one locking protrusion 25c, and the other locking projection 25c is locked. Each locking protrusion 25c is formed so that the projection 25c locks the other end of the second wire connecting member 32 in the cylinder axis direction (axial direction) in the cylinder axis direction. In this way, each of the second clamping bodies 25 clamps the second wire connection member 32 between itself and the contact portion 13b1 of the _second wire-side connector 13b, and the locking protrusion 25c of each second clamping member 25 clamps the second wire connection member 32. Since the axial movement of the second wire connecting member 32 is locked, the electrical connection state between the contact portion _13b1 and the second wire connecting member 32 can be maintained. Therefore, this noise filter can improve the quality of current flow between the second electric wire WE2 and the filter circuit 10 .

Here, on the inner wall surface of the blocking wall body 22a of the cover 22, even if the first wire connection member 31 and the second wire connection member 32 are not provided at the respective intermediate connection portions WEa1 and WEa2 as described above, It is desirable to provide the first clamping body 24 and the second clamping body 25 . That is, even in this case, the inner wall surface of the blocking wall 22a of the cover 22 directly connects the intermediate connection portion WEa1 of the first electric wire WE1 to the first electric wire side connector 12b of the first circuit connection member 12. A first clamping body 24 that clamps and a second clamping body 25 that directly clamps the intermediate connection portion WEa2 of the second electric wire WE2 between the second wire-side connector 13b of the second circuit connection member 13 and the second clamping body 25. It is desirable to provide at least one. However, in this case, the locking projection 24c is provided with a notch to avoid the intermediate connection portion WEa1, and the locking projection 25c is provided with a notch to avoid the intermediate connection portion WEa2.

The noise filter 1 of this embodiment shown above is not affected by the intermediate electric wire. In other words, in the conventional noise filter, as described above, the intermediate wire is interposed between the noise reduction target wire and the filter circuit. The intermediate electric wire has a large length tolerance in consideration of assembling workability to the noise filter, wiring route to the vehicle, and the like. Therefore, in the conventional noise filter, it is necessary to adjust the filter circuit characteristics (resonance point, noise reduction performance, etc.) in consideration of the noise component of the intermediate wire according to its length. However, in the noise filter 1 of the present embodiment, the filter circuit 10 is provided between the intermediate connection portion WEa1 of the first electric wire WE1 and the intermediate connection portion WEa2 of the second electric wire WE2 bundled with the main line WT of the wire harness WH. By electrically interposing, the filter circuit 10 is electrically connected to the respective intermediate connection portions WEa1 and WEa2. Therefore, the noise filter 1 does not require adjustment of the filter circuit characteristics in consideration of the influence of branch wires (intermediate wires) from the main line as in the conventional art. That is, this noise filter 1 is not affected by the intermediate electric wire.

Furthermore, in the noise filter 1 of the present embodiment, the first electric wire WE1 and the second electric wire WE2 running side by side and the filter circuit 10 are arranged side by side in the stacking direction. The spacing in the direction and the spacing in the arrangement direction between the first circuit connecting member 12 and the second circuit connecting member 13 can be narrowed. Therefore, the noise filter 1 of this embodiment can be miniaturized in the arrangement direction.

On the other hand, in the noise filter 1, since the first electric wires WE1, the second electric wires WE2, and the filter circuit 10 are arranged in the stacking direction, there is a possibility that the size of the noise filter 1 is increased in the stacking direction. However, in the noise filter 1 of the present embodiment, the element housing chamber 20b and the engaging body 23 are arranged side by side in the axial direction in the housing 20, and the _first main wall body 21a1 on which the engaging body 23 is provided. the first installation wall 12c of the first wire-side connector 12b and the second installation wall 13c of the second wire-side connector 13b are installed in the chamber 20b, and the noise reduction element 11 is accommodated in the element accommodation chamber 20b Therefore, it is possible to suppress an increase in size in the stacking direction.

Furthermore, in the noise filter 1 of the present embodiment, the filter circuit 10 is electrically connected to the intermediate connection portion WEa2 of the second electric wire WE2, one end of which is grounded. Even if there is no possible conductor, and even if the object to be installed is made of an insulating material such as synthetic resin, it can be easily grounded. In other words, the conventional noise filter is grounded via the installation object by connecting a ground terminal to the installation object when attached to the installation object. Therefore, in the conventional noise filter, the ground terminal protrudes from the housing in order to facilitate the work of fixing the ground terminal to the object to be installed. However, this noise filter 1 can be grounded without having such a ground terminal. Therefore, the noise filter 1 can be reduced in size and weight.

Furthermore, in the noise filter 1 of the present embodiment, the intermediate connection portion WEa1 of the first electric wire WE1 is indirectly or directly The intermediate connection portion WEa2 of the second electric wire WE2 is sandwiched between the second wire-side connector 13b of the second circuit connection member 13 and the second holding member 25, either indirectly or directly. Therefore, the noise filter 1 has an electrical connection structure in which the male and female terminals are fitted together like a conventional one, and the filter circuit 10 and the first electric wire WE1 and the second electric wire WE2 It is possible to miniaturize the electrical connection structure between Therefore, the noise filter 1 can be downsized from this point as well. In addition, although such a conventional connection structure may lead to an increase in cost depending on the shape, this noise filter 1 can suppress an increase in cost because of such a simple connection structure.

Furthermore, in the noise filter 1 of the present embodiment, by imparting elasticity to the first wire-side connector 12b of the first circuit connection member 12 and the second wire-side connector 13b of the second circuit connection member 13, It is possible to absorb the dimensional variation of each component and apply a stable contact load to each of the intermediate connection portions WEa1 and WEa2. Further, in this noise filter 1, the first wire-side connector 12b and the second wire-side connector 12b and the second wire side connector 12b are provided by imparting flexibility to the piece 24a of the first holding member 24 and the piece 25a of the second holding member 25. Combined with the elasticity of the connection body 13b, even if the dimensional variation of each component becomes larger, the dimensional variation can be absorbed and a stable contact load can be applied to the respective intermediate connection portions WEa1 and WEa2. can be done. Due to such characteristics, the noise filter 1 can improve the quality of current flow between the first electric wire WE1 and the second electric wire WE2 and the filter circuit 10 .

Furthermore, the noise filter 1 is configured such that, by imparting elasticity to the first wire-side connector 12b and the second wire-side connector 13b, wires with various outer diameters (first wire WE1 and second electric wire WE2) can be electrically connected. In addition, when the piece 24a of the first clamping body 24 and the piece 25a of the second clamping body 25 are made flexible, the noise filter 1 can be used in various ways within the elastic range including these. Electrical connection can be achieved with respect to the electric wires (the first electric wire WE1 and the second electric wire WE2) having a large outer diameter. That is, the noise filter 1 can be applied to electric wires (the first electric wire WE1 and the second electric wire WE2) with various outer diameters, and can improve versatility.

Moreover, the wire harness WH of the present embodiment is provided with such a noise filter 1, and the effect of obtaining this noise filter 1 can be achieved.

[Modification]
Reference numeral 2 in FIGS. 10 to 15 indicates the noise filter of this modified example. Further, WH in each figure indicates the wire harness of this modified example. The noise filter 2 and wire harness WH are obtained by replacing the filter circuit 10 in the noise filter 1 of the above-described embodiment with a filter circuit 110 described below.

The filter circuit 110 of this modified example includes at least one noise reduction element 11 in the same manner as the filter circuit 10 of the embodiment. They are replaced by the following first circuit connecting member 112 and second circuit connecting member 113, respectively. Therefore, this filter circuit 110 has two noise reduction elements 11 arranged side by side in the axial direction. Further, in this illustration, a first wire connection member 31 is provided at the intermediate connection portion WEa1 of the first wire WE1, and a second wire connection member 32 is provided at the intermediate connection portion WEa2 of the second wire WE2.

Like the first circuit connection member 12 and the second circuit connection member 13, the first circuit connection member 112 and the second circuit connection member 113 are conductive members that electrically connect each other through the noise reduction element 11. It is formed as a plate-shaped bus bar with a conductive material such as metal.

As with the first circuit connection member 12, the first circuit connection member 112 includes a first element side connection body 112a and a first wire side connection body 112b arranged side by side in the axial direction. and a first installation wall 112c connected to the connector 112a and formed with a first wire-side connector 112b (FIGS. 10 to 15). A contact portion 112b- ₁ and two beam portions 112b- ₂ are formed on the first wire-side connector 112b in the same manner as the first wire-side connector 12b (FIGS. 13 to 15). In the first circuit connection member 112, the first element-side connector 112a, the first wire-side connector 112b, and the first installation wall 112c are respectively the first element-side connector 12a and the first wire-side connector of the embodiment. It is similar to the connection body 12b and the first installation wall body 12c.

However, the first element-side connection body 112a of this modified example is formed as a part physically and electrically connected to the first element connection body of the noise reduction element 11 on the side of the first electric wire WE1 in the stacking direction (Fig. 10 to 15). In other words, the first element-side connector 112a is accommodated in the element accommodation chamber 20b while being offset with respect to the first installation wall 112c in the stacking direction, and the first wire WE1 of the noise reduction element 11 is placed on the first wire WE1 side in the stacking direction. A one-element connector is formed as a portion to be physically and electrically connected. The first element-side connector 112a is installed, for example, on the bottom wall of the element housing chamber 20b. For this reason, the first circuit connection member 112 of this modified example has a connection wall 112d that connects the first element-side connection body 112a and the first installation wall 112c in the stacking direction (FIG. 15).

112 d of connection walls of this example are formed in the shape of a rectangular flat plate which has a plane along an arrangement direction and a lamination direction. The connecting wall 112d is arranged opposite to the connecting wall _21a3 of the main wall 21a of the housing box 21 in the element housing chamber 20b, and the connecting wall _21a3 moves in the axial direction with respect to the housing box 21. Locked. Therefore, the connecting wall 112d is arranged opposite to the connecting wall _21a3 in the element housing chamber 20b so as to suppress relative movement of the housing box 21 in the axial direction.

As with the second circuit connection member 13, the second circuit connection member 113 includes a second element side connection body 113a and a second wire side connection body 113b arranged side by side in the axial direction, and a second element side connection body 113b in the axial direction. and a second installation wall 113c connected to the connector 113a and formed with a second wire-side connector 113b (FIGS. 10 to 15). A contact portion 113b- ₁ and two beam portions 113b- ₂ are formed on the second wire-side connector 113b in the same manner as the second wire-side connector 13b (FIGS. 13 to 15). In the second circuit connection member 113, the second element side connector 113a, the second wire side connector 113b and the second installation wall 113c are respectively the second element side connector 13a and the second wire side connector of the embodiment. It is similar to the connection body 13b and the second installation wall body 13c.

However, in the second element-side connection body 113a of this modification, the second element-side connection body of the noise reduction element 11 is physically and It is formed as a portion to be electrically connected (FIGS. 10 to 15). That is, the second element-side connector 113a is accommodated in the element accommodation chamber 20b while being offset with respect to the second installation wall 113c in the stacking direction. A two-element connector is formed as a portion to be physically and electrically connected. The second element-side connector 113a is installed, for example, on the bottom wall of the element housing chamber 20b. For this reason, the second circuit connection member 113 of this modified example has a connecting wall 113d that connects the second element side connecting body 113a and the second installation wall 113c in the stacking direction (FIG. 15).

113 d of connection walls of this example are formed in the shape of a rectangular flat plate which has a plane along an arrangement direction and a stacking direction. The connecting wall 113d is arranged opposite to the connecting wall _21a3 of the main wall 21a of the housing box 21 in the element housing chamber 20b, and the connecting wall _21a3 moves in the axial direction with respect to the housing box 21. Locked. Therefore, the connecting wall 113d is arranged opposite to the connecting wall _21a3 in the element housing chamber 20b so as to suppress the relative movement of the connecting wall 113d with respect to the containing box 21 in the axial direction.

The noise filter 2 of this modified example shown above can obtain the same effects as the noise filter 1 of the embodiment. Further, in the noise filter 2 of this modification, the connecting wall 112d of the first circuit connecting member 112 and the connecting wall 113d of the second circuit connecting member 113 are axially opposed to the connecting wall _21a3 of the storage box 21. By locking to suppress the movement, it is possible to suppress axial relative movement of the filter circuit 110 with respect to the housing box 21 in the element housing chamber 20b. As a result, the noise filter 2 controls the electrical connection state between the first wire-side connector 112b and the intermediate connection portion WEa1 of the first wire WE1 and the connection between the second wire-side connector 113b and the second wire WE2. The electrical connection state with the intermediate connection portion WEa2 can be maintained. Moreover, the wire harness WH of this modified example is provided with such a noise filter 2, and the effect of obtaining this noise filter 2 can be achieved.

Reference Signs List 1, 2 noise filter 10, 110 filter circuit 11 noise reduction element 12, 112 first circuit connection member 12a, 112a first element side connector 12b, 112b first wire side connector 12c, 112c first installation wall 13, 113 Second circuit connection member 13a, 113a Second element-side connector 13b, 113b Second wire-side connector 13c, 113c Second installation wall 20 Housing 20a Housing chamber 20b Element housing chamber 21a ₁ First main wall ( installed wall)
23 engaging body WE1 first electric wire WEa1 intermediate connection portion WE2 second electric wire WEa2 intermediate connection portion WEa core wire WH wire harness WT trunk line

Claims (6)

A noise reduction element for reducing noise components, a first connection portion of the noise reduction element arranged side by side in a direction orthogonal to the axial direction and the arrangement direction of the first electric wire and the second electric wire running side by side, and the noise reduction element and a conductive first circuit connection member to which is electrically connected, and arranged side by side with the first circuit connection member in the arrangement direction with a gap and arranged side by side with the second wire in the orthogonal direction and a conductive second circuit connection member to which the second connection portion of the noise reduction element is electrically connected;
a housing that houses the filter circuit and the first wire and the second wire running in parallel;
with
The first circuit connection member and the second circuit connection member are each formed of a conductive material into a plate shape,
The first circuit connection member is arranged side by side with the first wire in the orthogonal direction with a gap therebetween, and is physically and electrically connected to the first connection portion of the noise reduction element. and a first wire-side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the first wire in the orthogonal direction, arranged side by side in the axial direction. is established,
The second circuit connection member is arranged side by side with a gap in the orthogonal direction with respect to the second electric wire, and is physically and electrically connected to the second connection portion of the noise reduction element. and a second wire-side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the second wire in the orthogonal direction, arranged side by side in the axial direction. is established ,
Each of the first wire-side connector and the second wire-side connector is formed in a shape capable of bending within an elastic range in the orthogonal direction,
The housing is provided between a first clamping body that indirectly or directly clamps the intermediate connection portion of the first wire between the first wire-side connectors and the second wire-side connector. and a second clamping body that indirectly or directly clamps the intermediate connection portion of the second electric wire . The housing has an element housing chamber in which the noise reduction element is housed, and has an engaging body of a fixing mechanism that engages with an object to be fixed. Provided to protrude from the wall surface,
2. The noise filter according to claim 1, wherein the element housing chamber and the engaging body are arranged side by side in the axial direction. The first element-side connector physically and electrically connects the first connection portion of the noise reduction element to the opposite side of the first wire in the orthogonal direction,
2. The second element-side connector physically and electrically connects the second connection portion of the noise reduction element to a side opposite to the second electric wire in the orthogonal direction. 2. The noise filter according to 2. The first element-side connector physically and electrically connects the first connection portion of the noise reduction element to the first wire side in the orthogonal direction,
3. The second element-side connection body according to claim 1, wherein the second connection portion of the noise reduction element is physically and electrically connected to the second electric wire side in the orthogonal direction. noise filter. The housing has an element housing chamber for housing the noise reduction element inside, and an engaging body of a fixing mechanism that engages with the object to be fixed is arranged from the outer wall surface positioned in the orthogonal direction. provided protruding,
The element housing chamber and the engaging body are arranged side by side in the axial direction,
The first circuit connection member has a first installation wall that is installed on a installation wall that has the outer wall surface provided with the engaging body, and on which the first wire-side connector is formed,
The second circuit connection member has a second installation wall that is installed on the installed wall and on which the second wire-side connector is formed,
The first element-side connection body is offset with respect to the first installation wall in the orthogonal direction and accommodated in the element accommodation chamber, and the noise reduction element is arranged on the first wire side in the orthogonal direction. 1 physically and electrically connect the connecting parts,
The second element-side connection body is offset with respect to the second installation wall in the orthogonal direction and accommodated in the element accommodation chamber, and the noise reduction element is arranged on the second wire side in the orthogonal direction. 2. The noise filter according to claim 1, wherein the two connecting portions are physically and electrically connected. a main line including the first electric wire and the second electric wire;
a noise filter that reduces noise components;
with
The noise filter is
a noise reduction element for reducing noise components, arranged side by side with the first electric wire in a direction perpendicular to the axial direction and the arrangement direction of the first electric wire and the second electric wire running side by side; a conductive first circuit connection member to which the connection portion is electrically connected; a filter circuit comprising a conductive second circuit connection member arranged side by side and electrically connected to the second connection portion of the noise reduction element;
a housing that houses the filter circuit and the first wire and the second wire running in parallel;
with
The first circuit connection member and the second circuit connection member are each formed of a conductive material into a plate shape,
The first circuit connection member is arranged side by side with the first wire in the orthogonal direction with a gap therebetween, and is physically and electrically connected to the first connection portion of the noise reduction element. and a first wire-side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the first wire in the orthogonal direction, arranged side by side in the axial direction. is established,
The second circuit connection member is arranged side by side with a gap in the orthogonal direction with respect to the second electric wire, and is physically and electrically connected to the second connection portion of the noise reduction element. and a second wire-side connector electrically connected indirectly or directly to the intermediate connection portion of the core wire of the second wire in the orthogonal direction, arranged side by side in the axial direction. is established ,
Each of the first wire-side connector and the second wire-side connector is formed in a shape capable of bending within an elastic range in the orthogonal direction,
The housing is provided between a first clamping body that indirectly or directly clamps the intermediate connection portion of the first wire between the first wire-side connectors and the second wire-side connector. and a second clamping body that indirectly or directly clamps the intermediate connection portion of the second electric wire.

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