JP2016015358A - Coil device, electronic control unit, and vehicle brake fluid pressure control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil device which enables reduction of work hours when a common mode choke coil and a normal mode choke coil are assembled to a housing.SOLUTION: In a coil device 30, a common mode choke coil 31 and a normal mode choke coil 32 are arranged in parallel to each other. A first conducting wire 33 and a second conducting wire 34 are wound around a common core 31a of the common mode choke coil 31. The second conducting wire 34 integrally extended from the common mode choke coil 31 is wound around a normal core 32a of the normal mode choke coil 32.

Description

  The present invention relates to a coil device, an electronic control unit, and a vehicle brake hydraulic pressure control device.

  The electronic control unit of the brake fluid pressure control device has a housing attached to the base, and an electronic board is accommodated in the housing. Also, in the housing, a common mode choke coil for reducing common mode noise generated between the signal line or power line and the ground (GND), and a normal generated between the signal line and the power line. A normal mode choke coil for reducing mode noise is accommodated (see, for example, Patent Document 1).

JP 2013-69737 A

In a conventional electronic control unit, a common mode choke coil and a normal mode choke coil are configured by independent components. The choke coil is electrically connected by welding the end of the common mode choke coil and the end of the normal mode choke coil to the relay terminal.
Therefore, the conventional electronic control unit has a problem that man-hours for assembling both the choke coils to the housing increase.

An object of the present invention is to solve the above-described problems and to provide a coil device that can reduce the man-hour when the common mode choke coil and the normal mode choke coil are assembled to the housing.
It is another object of the present invention to provide an electronic control unit and a vehicle brake hydraulic pressure control device using the coil device of the present invention.

  In order to solve the above problems, the present invention is a coil device in which a common mode choke coil and a normal mode choke coil are arranged in parallel. A first conductor and a second conductor are wound around a common core of the common mode choke coil, and the normal core of the normal mode choke coil is integrally extended from the common mode choke coil. Conductor is wound.

In the coil device of the present invention, a common second conductor is wound around the common core and the normal core, and both choke coils are integrated by one second conductor.
In this configuration, since it is not necessary to connect the conducting wires of both choke coils, the number of places to be welded when both choke coils are assembled to the housing can be reduced.
Therefore, in the coil device of the present invention, since the man-hour when assembling both the choke coils to the housing can be reduced, the manufacturing cost can be reduced.
Further, since it is not necessary to cut the conducting wire in order to adjust the length of the conducting wire between the both choke coils, the manufacturing cost can be reduced.

  Further, in the coil device of the present invention, since both the choke coils are integrated, both the choke coils can be placed in the housing in one operation, and the electrical connection between the both choke coils is possible. Can improve the reliability.

  Moreover, in the coil device of the present invention, since it is not necessary to secure a space for welding work between both the choke coils, both the choke coils can be arranged close to each other, and the coil device can be configured compactly. . As a result, the housing can be reduced in size.

In the coil device described above, it is desirable that both end portions of the first conducting wire and both end portions of the second conducting wire extend in parallel.
In this configuration, when welding both ends of the first conductor and both ends of the second conductor to the terminal of the housing, the tip of the welding device is disposed in the same direction with respect to each end. Efficiency can be increased.

In the coil device described above, it is desirable that the axial direction of the common core and the axial direction of the normal core are orthogonal to each other.
In this configuration, the second conductor can be arranged in a straight line between the common core and the normal core, and the common core and the normal core can be brought close to each other, so the coil device is compactly configured. can do.

In the coil device described above, it is desirable that the common core and the normal core are arranged in one region with respect to a reference plane passing through both end portions of the first conducting wire and both end portions of the second conducting wire.
In this way, by aligning the heights of the ends of the two conductors and arranging the common core and the normal core in one region with respect to the ends of the two conductors, the coil device is arranged in the height direction. Can be small. As a result, the housing can be made smaller in the height direction.

  The electronic control unit of the present invention includes the coil device and a housing in which the coil device is accommodated. In this configuration, an opening into which a part of the common core is inserted may be formed at the bottom of the housing. If it does in this way, a housing can be made small in a height direction.

In the electronic control unit described above, a connector connecting portion to which a connector of an external wiring cable is connected is formed in the housing. In this case, in the common mode choke coil, at least one of the end portions of the first conductive wire and the second conductive wire is extended toward the connector connecting portion, and in the normal mode choke coil, It is good to extend the edge part of two conducting wires toward the said connector connection part.
In this configuration, the wiring between the coil device and the connector connecting portion can be simplified, and the coil device can be easily electrically connected to the connector connecting portion.

The vehicle brake hydraulic pressure control device of the present invention includes a base body on which a brake fluid path is formed and the electronic control unit, and the electronic control unit is attached to one surface of the base body. A part of the common core protrudes from the housing toward the base, and a concave portion for accommodating a part of the common core is formed on one surface of the base.
In this configuration, the housing can be reduced in the height direction, and the vehicle brake hydraulic pressure control device can be reduced in size.

In the coil device of the present invention, since the two choke coils are integrated by one conducting wire, the manufacturing cost can be reduced and the structure can be made compact. Furthermore, the reliability of the electrical connection between both choke coils can be improved.
In the electronic control unit and the vehicle brake hydraulic pressure control device using the coil device of the present invention, the housing can be made smaller in the height direction.

It is the perspective view which showed the coil apparatus and housing which concern on embodiment of this invention. It is the top view which showed the coil apparatus and housing which concern on embodiment of this invention. 1 is a side sectional view showing a vehicle brake hydraulic pressure control device according to an embodiment of the present invention. 3A and 3B are views showing a coil device and a housing according to an embodiment of the present invention, in which FIG. 3A is a cross-sectional view taken along line AA in FIG. It is the figure which showed the coil apparatus which concerns on embodiment of this invention, (a) is a perspective view, (b) is a top view. It is the figure which showed the coil apparatus which concerns on embodiment of this invention, (a) is a side view, (b) is a rear view.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the present embodiment, a case where the coil device of the present invention is applied to an electronic control unit of a vehicle brake hydraulic pressure control device will be described as an example.

The vehicle brake fluid pressure control device 1 shown in FIG. 3 generates brake fluid pressure by driving a motor in accordance with the amount of operation of the brake pedal.
The vehicular brake hydraulic pressure control device 1 is mounted not only on an automobile that uses only an engine (internal combustion engine) as a power source, but also on a hybrid car that uses a motor together, an electric car that uses only a motor as a power source, and a fuel cell car. be able to.

The vehicle brake fluid pressure control device 1 includes a base body 10 on which a brake fluid path is formed, and an electronic control unit 2 attached to one surface 10a of the base body 10.
The base body 10 is a metal part mounted on a vehicle, and a brake fluid path is formed inside the base body 10. Various components such as a solenoid valve and a motor are attached to the base 10.

  The electronic control unit 2 houses an electronic board 20 that controls a solenoid valve, a motor, and the like, a coil device 30 for reducing noise generated in an electronic circuit of the electronic board 20, and the electronic board 20 and the coil device 30. And a housing 40.

  The housing 40 is a box made of a synthetic resin that is attached to the one surface 10a of the base body 10 while covering electrical components such as an electromagnetic valve and a pressure sensor protruding from the one surface 10a of the base body 10. As shown in FIG. 2, the housing 40 has a substantially rectangular outer peripheral shape.

  As shown in FIG. 3, the housing 40 has an open surface on the opposite side (front side) to the base 10 side and a surface on the base 10 side (back side). The opening on the front side of the housing 40 is sealed with a cover 50 made of synthetic resin.

The housing 40 includes a plate-shaped bottom portion 41 and a peripheral wall portion 42 formed on the peripheral edge portion of the bottom portion 41.
The bottom portion 41 is formed between the center in the height direction (front and back direction) of the peripheral wall portion 42 and the opening edge portion on the back side of the peripheral wall portion 42. In a state where the housing 40 is attached to the one surface 10 a of the base body 10, the bottom 41 faces the one surface 10 a of the base body 10 with a gap.

As shown in FIGS. 1 and 2, attachment holes 42 a are respectively formed at the four corners of the peripheral wall portion 42.
The housing 40 is fixed to the base body 10 by inserting a bolt into each mounting hole 42a from the front side and screwing the bolt into a screw hole formed on one surface 10a (see FIG. 3) of the base body 10.

  A connector connecting portion 43 is formed on the rear surface of the peripheral wall portion 42. The connector connecting portion 43 is a portion into which a connector provided at the end of the external wiring cable is inserted.

As shown in FIG. 3, the electronic substrate 20 is obtained by attaching an electronic component such as a semiconductor chip to a rectangular substrate body 21 on which an electronic circuit is printed.
The electronic board 20 is configured to control the operation of the electromagnetic valve and the motor based on information obtained from various sensors such as a pressure sensor, a program stored in advance, and the like.
The substrate body 21 is attached to a plurality of support portions projecting from the surface of the bottom portion 41, and is disposed on the surface of the bottom portion 41 with an interval.

As shown in FIGS. 1 and 2, the coil device 30 includes a common mode choke coil 31 and a normal mode choke coil 32.
The coil device 30 is mounted in the housing 40 in a state where the common mode choke coil 31 and the normal mode choke coil 32 are juxtaposed in the front-rear direction.

The common mode choke coil 31 reduces common mode noise generated between a signal line or a power supply line and the ground (GND) in the electronic circuit of the electronic substrate 20.
As shown in FIGS. 5A and 5B, the common mode choke coil 31 includes a common core 31a, first and second conductive wires 33 and 34 wound around the common core 31a, a base plate 35, It is equipped with.

  The common core 31a is a core material for an iron coil having magnetism, and is formed in a ring shape (see FIG. 6B). In the present embodiment, the central axis direction of the common core 31a is arranged in the front-rear direction (see FIG. 2).

  As shown in FIG. 6B, the first conducting wire 33 is wound around the right half of the common core 31a. As shown in FIGS. 5A and 5B, the first conductor 33 is wound around the common core 31a so that both end portions 33a and 33b are drawn forward and rearward from the upper right portion of the common core 31a. It has been. Then, both end portions 33a and 33b of the first conducting wire 33 extend upward from the upper portion of the common core 31a.

  As shown in FIG. 6B, the second conductor 34 is wound around the left half of the common core 31a. As shown in FIGS. 5A and 5B, the second conductor 34 is wound around the common core 31a so that both end portions 34a and 34b are drawn forward and rearward from the upper left portion of the common core 31a. It has been. Then, both end portions 34a and 34b of the second conducting wire 34 extend upward from the upper portion of the common core 31a.

The base plate 35 is a rectangular plate made of synthetic resin. Insertion holes 35 a are respectively formed at the four corners of the front, rear, left and right of the base plate 35.
As shown in FIG. 6B, the front end of the common core 31a is joined to the center of the back surface of the base plate 35 with an adhesive.

As shown in FIGS. 5A and 5B, the front end portion 33 a of the first conductor 33 is inserted from the back side to the front side through the insertion hole 35 a on the right front side of the base plate 35.
The front end portion 33a of the first conducting wire 33 is bent at a right angle on the front side of the base plate 35 and extends toward the front. The front end portion 33 a of the first conducting wire 33 protrudes forward from the front edge portion of the base plate 35.

The rear end 33b of the first conductor 33 is inserted from the back side to the front side through the insertion hole 35a on the right rear side of the base plate 35.
The rear end portion 33b of the first conductor 33 is bent at a right angle on the front side of the base plate 35 and extends rearward. The rear end portion 33 b of the first conducting wire 33 protrudes rearward from the rear edge portion of the base plate 35.

In the insertion hole 35a on the left front side of the base plate 35, an intermediate portion 34c of the second conducting wire 34 is inserted from the back side to the front side.
The intermediate portion 34c of the second conducting wire 34 is bent at a right angle on the front side of the base plate 35 and extends forward. The intermediate portion 34 c of the second conducting wire 34 projects forward from the front edge portion of the base plate 35.

In the insertion hole 35a on the left rear side of the base plate 35, the rear end portion 34b of the second conductor 34 is inserted from the back side to the front side.
The rear end portion 34b of the second conductive wire 34 is bent at a right angle on the front side of the base plate 35 and extends rearward. The rear end portion 34 b of the second conducting wire 34 protrudes rearward from the rear edge portion of the base plate 35.

The normal mode choke coil 32 reduces normal mode noise generated between signal lines and between power lines in the electronic circuit of the electronic substrate 20 (see FIG. 3).
The normal mode choke coil 32 includes a normal core 32a and a second conductor 34 wound around the normal core 32a.

  The normal core 32a is a core material for an iron coil having magnetism, and is formed in a columnar shape. In the present embodiment, the axial direction of the normal core 32a is arranged in the left-right direction (see FIG. 2).

In the coil device 30, the axial direction (front-rear direction) of the common core 31a and the axial direction (left-right direction) of the normal core 32a are orthogonal to each other.
Further, the positional relationship between the common core 31a and the normal core 32a is set so that the right end portion of the normal core 32a is disposed in front of the left half of the common core 31a.

  A second conductor 34 is wound around the normal core 32a. As described above, in the coil device 30, the common second conductor 34 (one second conductor 34) is wound around the common core 31a and the normal core 32a.

  The second conducting wire 34 is wound from the right end portion to the left end portion of the normal core 32a. The intermediate portion 34c of the second conductor 34 extends linearly in the front-rear direction from the left half of the common core 31a to the right end of the normal core 32a.

  The front end portion 34a of the second conductor 34 is a left end portion of the normal core 32a, is bent in the radial direction of the normal core 32a, and extends rearward.

In the coil device 30, the end portions 33 a, 33 b, 34 a, 34 b of both the conductive wires 33, 34 extend in the front-rear direction, and the end portions 33 a, 33 b, 34 a, 34 b are arranged in parallel.
Moreover, each edge part 33a, 33b, 34a, 34b of both the conducting wires 33 and 34 is arrange | positioned at the same height, as shown to Fig.6 (a) and (b).
The common core 31a and the normal core 32a are arranged in a region on the base 10 side (back side) with respect to the reference plane P passing through the end portions 33a, 33b, 34a, and 34b of both the conductive wires 33 and 34. Yes.

Next, the mounting structure of the coil device 30 in the housing 40 will be described.
As shown in FIG. 2, the coil device 30 is attached to an area adjacent to the connector connecting portion 43 at the bottom portion 41. In this region, a common housing hole 41a into which the common core 31a is inserted and a normal housing portion 41b into which the normal core 32a is housed are formed. Furthermore, both the conducting wires 33 and 34 of the coil device 30 are electrically connected to a bus bar 44 provided on the bottom 41.

  The common accommodation hole 41a is formed in a region on the left rear side of the bottom portion 41, and is an opening that penetrates the bottom portion 41 in the front-back direction (see FIG. 3). The common accommodation hole 41a is formed in a substantially rectangular shape in plan view.

  The normal accommodating portion 41b is a bottomed concave portion formed in a region in front of the common accommodating hole 41a in the bottom portion 41 (see FIG. 3), and is formed in a substantially rectangular shape in plan view.

  The front ends of the bus bars 44 protrude from the right front side, right rear side, and left rear side regions in the common housing hole 41a and the left rear region in the normal housing portion 41b. The base end side portion of each bus bar 44 is embedded in the bottom 41.

  The bus bar 44 on the right front side in the common accommodation hole 41a extends to the right of the common accommodation hole 41a. A terminal 44b protruding from the bottom 41 to the front side is formed at the base end portion of the bus bar 44, and is electrically connected to the electronic circuit of the electronic substrate 20 (see FIG. 3).

  The right rear and left rear bus bars 44, 44 in the common accommodation hole 41a extend to the rear of the common accommodation hole 41a. The base end portions of these bus bars 44, 44 protrude into the connector connecting portion 43 and serve as terminals to which the connectors of the external wiring cables are electrically connected.

  The bus bar 44 in the normal accommodating portion 41b extends to the rear of the normal accommodating portion 41b. A terminal 44b protruding from the bottom 41 to the front side is formed at the base end portion of the bus bar 44, and is electrically connected to the electronic circuit of the electronic substrate 20 (see FIG. 3).

As shown in FIG. 4B, the front end portion of each bus bar 44 is bent at a right angle toward the front side, and a connection terminal 44a branched into two is formed at the front end portion of the bus bar 44.
As shown in FIG. 2, the connection terminal 44 a of each bus bar 44 is a part where the end portions 33 a, 33 b, 34 a, 34 b of both the conductive wires 33, 34 are electrically connected.

  As shown in FIG. 1, the connection terminal 44a is open in the left-right direction, and the four connection terminals 44a are arranged in the same direction. Further, the connection terminals 44a of the bus bars 44 are arranged at the same height.

  The front end portion 33a of the first conducting wire 33 is inserted into the groove portion of the connection terminal 44a of the bus bar 44 on the right front side in the common accommodation hole 41a. The front end portion 33a of the first conductor 33 is resistance-welded to the connection terminal 44a by energizing the electrode with the connection terminal 44a sandwiched between the left and right sides by the electrode of the welding apparatus.

Similarly, the rear end portion 33b of the first conducting wire 33 is resistance-welded to the connection terminal 44a of the right rear bus bar 44 in the common accommodation hole 41a (see FIG. 4B).
The rear end 34b of the second conductor 34 is resistance-welded to the connection terminal 44a of the left rear bus bar 44 in the common accommodation hole 41a. (See FIG. 4 (b)).
Further, the front end portion 34a of the second conducting wire 34 is resistance welded to the connection terminal 44a of the bus bar 44 in the normal accommodating portion 41b.

  As described above, the end portions 33a, 33b, 34a, and 34b of both the conductive wires 33 and 34 are welded to the connection terminals 44a of the bus bars 44, so that the common mode choke coil 31 and the normal mode are connected as shown in FIG. A choke coil 32 is attached to the bottom 41. The coil device 30 and the electronic circuit of the electronic substrate 20 are electrically connected via each bus bar 44.

  In a state where the coil device 30 is attached to the bottom 41, the common core 31 a is inserted into the common receiving hole 41 a of the bottom 41. Moreover, the normal core 32a is accommodated in the normal accommodating part 41b of the bottom part 41 (refer Fig.4 (a)).

Further, the end on the back side of the common core 31 a (the end on the base 10 side) is in a state of protruding from the opening on the back side of the housing 40.
As shown in FIG. 4B, a common housing portion 10b that houses the end portion on the back side of the common core 31a is formed on the one surface 10a of the base 10. The common accommodating portion 10b is a bottomed concave portion formed on the one surface 10a of the base 10.

The end of the back side of the common core 31a is in contact with the bottom surface of the common housing portion 10b. Thereby, the common core 31 a is stable with respect to the base body 10.
When the common core 31a is bonded to the bottom surface of the common housing portion 10b with an adhesive, the stability of the common core 31a with respect to the base body 10 can be enhanced.
Similarly, the end on the back side of the normal core 32a may be configured to be in contact with the bottom surface of the normal accommodating portion 41b. Furthermore, the normal core 32a is attached to the bottom surface of the normal accommodating portion 41b with an adhesive. It may be adhered.

In the coil device 30 as described above, as shown in FIG. 5A, the common second conductor 34 is wound around the common core 31a and the normal core 32a, and the single second conductor 34 The common mode choke coil 31 and the normal mode choke coil 32 are integrated.
In this structure, since it is not necessary to connect the conducting wire of both the choke coils 31 and 32, when assembling both the choke coils 31 and 32 to the housing 40 (refer FIG. 1), the location to weld can be reduced.

Therefore, in the coil apparatus 30, since the man-hour at the time of assembling both the choke coils 31 and 32 to the housing 40 (refer FIG. 1) can be reduced, manufacturing cost can be reduced.
Further, since it is not necessary to cut the conducting wire in order to adjust the length of the conducting wire between the choke coils 31 and 32, the manufacturing cost can be reduced.

  Moreover, in the coil apparatus 30, as shown in FIG. 2, each edge part 33a, 33b, 34a, 34b of both conducting wire 33, 34 is extended in parallel. Therefore, when welding both the conducting wires 33 and 34 to the connection terminal 44a of the bus bar 44, the electrodes of the welding apparatus can be arranged in the same direction with respect to the respective end portions 33a, 33b, 34a and 34b. Can be increased.

  Moreover, in the coil apparatus 30, since both the choke coils 31 and 32 are integrated as shown in FIG. 2, both the choke coils 31 and 32 can be mounted in the housing 40 by one operation. At the same time, the reliability of the electrical connection between the choke coils 31 and 32 can be increased.

Further, in the coil device 30, the axial direction of the common core 31a and the axial direction of the normal core 32a are orthogonal to each other. In this configuration, since the second conductor 34 can be arranged linearly between the common core 31a and the normal core 32a, the common core 31a and the normal core 32a can be brought close to each other.
In the coil device 30, it is not necessary to secure a space for welding work between the choke coils 31 and 32.
Thus, in the coil apparatus 30, since both the choke coils 31 and 32 can be arrange | positioned closely, the coil apparatus 30 can be comprised compactly.

Further, in the coil device 30, as shown in FIG. 5A, the heights of the end portions 33a, 33b, 34a, and 34b of both the conductive wires 33 and 34 are aligned, and the end portions 33a of the both conductive wires 33 and 34 are aligned. , 33b, 34a, 34b, the common core 31a and the normal core 32a are arranged in one region.
In this configuration, the coil device 30 is made smaller in the height direction than the configuration in which the common core 31a and the normal core 32a are respectively arranged on both sides of the end portions 33a, 33b, 34a, and 34b of both the conductive wires 33 and 34. can do.

  As described above, the coil device 30 of the present embodiment can be reduced in the height direction and can be configured compactly. Therefore, as shown in FIG. 3, the electronic control unit 2 using the coil device 30 can reduce the size of the housing 40 while reducing the size of the housing 40 in the height direction.

Further, in the present embodiment, a common accommodation hole 41a into which a part of the common core 31a is inserted is formed in the bottom 41 of the housing 40, and a part of the common core 31a is formed in the one surface 10a of the base body 10. The common accommodating portion 10b is formed.
In this configuration, the common core 31a can be brought closer to the base body 10 in the housing 40, and the distance between the bottom 41 and the electronic substrate 20 can be reduced. Therefore, the housing 40 can be reduced in the height direction, and the vehicle brake hydraulic pressure control device 1 can be downsized.

  In the electronic control unit 2, as shown in FIG. 2, the rear end portion 33 b of the first conducting wire 33, the rear end portion 34 b of the second conducting wire 34, and the front end portion 34 a of the second conducting wire 34 face the connector connecting portion 43. It extends. Thereby, the wiring between the coil device 30 and the connector connecting portion 43 can be simplified, and the coil device 30 can be easily electrically connected to the connector connecting portion 43.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
In this embodiment, as shown in FIG. 5A, a ring-shaped common core 31a and a columnar normal core 32a are used, but the shapes of the common core and the normal core are limited. It is not something.

In the present embodiment, the axial direction of the common core 31a and the axial direction of the cylindrical normal core 32a are orthogonal to each other, but the orientation and positional relationship between the common core 31a and the normal core 32a are limited. Is not to be done.
For example, the left end portion of the normal core 32a may be disposed in front of the left half of the common core 31a, and the second conductor 34 may be wound from the left end portion to the right end portion of the normal core 32a. In this configuration, since the entire normal core 32a is disposed in front of the common core 31a, the coil device 30 can be reduced in the left-right direction.

  Further, in the present embodiment, the end portions 33a, 33b, 34a, 34b of both the conductive wires 33, 34 are arranged in parallel, but the end portions 33a, 33b, 34a, 34b may be arranged in different directions. Good.

  In the present embodiment, as shown in FIG. 3, the coil device 30 used in the electronic control unit 2 of the vehicle brake hydraulic pressure control device 1 is described as an example. However, the coil device of the present invention is applied. The apparatus to be used is not limited.

DESCRIPTION OF SYMBOLS 1 Brake hydraulic pressure control apparatus for vehicles 2 Electronic control unit 10 Base | substrate 10b Common accommodating part (recessed part)
20 Electronic Board 21 Board Body 30 Coil Device 31 Common Mode Choke Coil 31a Common Core 32 Normal Mode Choke Coil 32a Normal Core 33 First Conductor 33a Front End 33b Rear End 34 Second Conductor 34a Front End 34b Rear End 34c Intermediate portion 35 Base plate 40 Housing 41 Bottom portion 41a Common accommodation hole (opening)
41b Normal housing part 42 Peripheral wall part 43 Connector connection part 44 Bus bar 44a Connection terminal

Claims (7)

A coil device in which a common mode choke coil and a normal mode choke coil are arranged in parallel,
A first conductor and a second conductor are wound around the common core of the common mode choke coil,
The coil device, wherein the second conducting wire integrally extended from the common mode choke coil is wound around the normal core of the normal mode choke coil.   The coil device according to claim 1, wherein both end portions of the first conducting wire and both end portions of the second conducting wire extend in parallel.   3. The coil device according to claim 1, wherein an axial direction of the common core and an axial direction of the normal core are orthogonal to each other. The common core and the normal core are:
It is arrange | positioned in one area | region with respect to the reference plane which passes through the both ends of said 1st conducting wire, and the both ends of said 2nd conducting wire, It is any one of Claims 1-3 characterized by the above-mentioned. Coil device. A coil device according to any one of claims 1 to 4,
An electronic control unit comprising a housing in which the coil device is accommodated,
An electronic control unit, wherein an opening into which a part of the common core is inserted is formed at a bottom of the housing. The housing includes
A connector connection part to which the connector of the external wiring cable is connected is formed,
In the common mode choke coil, at least one of the end portions of the first conducting wire and the second conducting wire extends toward the connector connecting portion, and
6. The electronic control unit according to claim 5, wherein in the normal mode choke coil, an end portion of the second conducting wire extends toward the connector connecting portion. A base on which a brake fluid path is formed;
An electronic control unit according to claim 5 or 6,
A brake fluid pressure control device for a vehicle in which the electronic control unit is attached to one surface of the base body,
A part of the common core protrudes from the housing toward the base,
A vehicular brake hydraulic pressure control device is characterized in that a recess for accommodating a part of the common core is formed on one surface of the base.

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