JP6791791B2 - Electronic control device and brake fluid pressure control device - Google Patents

Description

The present invention relates to an electronic control device and a brake fluid pressure control device.

Patent Document 1 discloses an electronic control device in which a circuit board on which an electric component is mounted is housed in a case. In this electronic control device, a relatively large electric component, for example, a capacitor, in which a terminal protrudes from one end of a main body, is arranged in a relatively large accommodation space in the case. Here, the terminals of the electric component face the opening surface side of the case, and a gap is formed between the main body of the electric component and the inner wall of the case. Then, the circuit board is fixed to the terminal by inserting the terminal of the electric component into the corresponding through hole of the circuit board and soldering.

Japanese Unexamined Patent Publication No. 2008-62915

However, in the mounting of the circuit board to the terminal of the electric component of Patent Document 1, since a gap is formed between the inner wall of the case and the main body of the electric component, the terminal of the electric component is passed through the corresponding through of the circuit board. When inserting into a hole, there is a risk that the terminal and the through hole will be misaligned. Therefore, it takes time and effort to align the terminals and the through holes, and the productivity of the electronic control device is lowered.

In the present invention, the electronic control device includes an electric component having a terminal protruding from one end of the main body, a case in which a recess into which the main body of the electric component can be inserted is formed in a part of the bottom wall, and the recess. A circuit board having a through hole which is arranged in the case so as to cover the electric component and electrically connected to the terminals of the electric component, and is interposed between the circuit board and the case to hold the electric component. It is provided with a holder member to be used.

The holder member comes into contact with a plate-shaped base portion located between the circuit board and the case, a holding portion that grips the outer peripheral portion of the main body portion, and a part of the case and the main body portion in the insertion direction. It is provided with a contact portion.

In such a configuration, while the holding portion of the holder member grips the outer peripheral portion of the main body portion of the electric component, the contact portion of the holder member contacts a part of the case in the insertion direction of the main body portion, and the electric component is pressed. Position.

According to the present invention, while the holder member holds the main body of the electric component, the movement of the electric component with respect to the case is restricted in the insertion direction of the main body, so that the terminal of the electric component housed in the case is connected to the circuit board. When inserted into the corresponding through hole, misalignment between the terminal and the through hole is prevented. Therefore, the terminals and the circuit board can be easily attached, and the productivity of the electronic control device is improved.

It is explanatory drawing which shows the electronic control apparatus of one Example. It is an exploded perspective view which shows the electronic control apparatus of one Example. It is explanatory drawing of the case when viewed from the side opposite to the circuit board. It is a perspective view which shows a holder member, a coil and a capacitor. It is a perspective view of a holder member. FIG. 5 is a perspective view showing the holder member of FIG. 5 turned upside down. It is explanatory drawing of the case in the state which the coil and the capacitor are inserted in the recess for coil and the recess for capacitor respectively. It is explanatory drawing which shows the state which held the coil and the capacitor by the holder member. It is explanatory drawing which shows the state which inserted the coil and the capacitor attached to the holder member into the coil recess and the capacitor recess, respectively. It is an enlarged view of a part of the circuit board housed in a case. It is sectional drawing of a holder member, a coil, a capacitor and the like along the line AA of FIG. It is explanatory drawing which shows the flow of hot air when hot air is blown from one surface side of a circuit board. It is a perspective view of the holder member of the 2nd Example. It is explanatory drawing which shows the engaging state of the holder member and a case of 2nd Example. It is a perspective view of the holder member of 3rd Example.

Hereinafter, an example in which the electronic control device (brake fluid pressure control device) 1 of one embodiment is applied to the antilock braking system of the vehicle will be described with reference to FIGS. 1, 2, and 3.

First, the configuration of the anti-lock braking system will be briefly described. The anti-lock brake system is provided in a master cylinder that generates a brake pressure according to the amount of depression of the brake pedal, a main passage that connects the master cylinder and the wheel cylinder of the wheel, and a brake fluid pressure in the main passage. A normally open solenoid type pressure booster valve as an electromagnetic on-off valve to control, a normally closed solenoid type pressure reducing valve provided in the main passage as an electromagnetic on-off valve to control the brake fluid pressure, and a wheel cylinder provided in the main passage. It is equipped with a plunger pump that discharges the brake fluid pressure and a reservoir tank that stores the brake fluid discharged from the wheel cylinder via the pressure reducing valve and supplies the brake fluid to the main passage by operating the plunger pump. There is.

The pressure boosting valve controls to supply the brake fluid pressure from the master cylinder to the wheel cylinder during brake operation, and the pressure reducing valve opens when the wheel slips and the pressure of the wheel cylinder. Is to reduce.

The pressure boosting valve and the pressure reducing valve are opened and closed by energizing or de-energizing based on a control signal from the electronic control device 1 described later. Then, the brake fluid pressure of each wheel cylinder is increased / decreased or maintained by opening / closing the pressure boosting valve.

FIG. 1 shows a hydraulic unit 2 as a hydraulic pressure unit provided with the pressure boosting valve and the pressure reducing valve, and an electronic control device 1 for controlling the hydraulic unit 2.

The lower hydraulic unit 2 in FIG. 1 has a holding hole formed on the upper surface of the hydraulic block 3 formed of an aluminum alloy, and a plurality of solenoid valves (not shown) functioning as the pressure boosting valve and the pressure reducing valve in the holding hole. And the oil pressure sensor 4 (see FIG. 3) are housed in the structure. The valve body of the solenoid valve is inserted into the corresponding solenoid valve solenoid coil 5 (see FIG. 3). Further, the hydraulic block 3 is formed with a main passage and a sub-passage that communicate with the solenoid valve, and a plunger pump (not shown) that supplies brake hydraulic pressure to the main passage, an electric motor 6 that drives the plunger pump, and the like. Is provided. The electric motor 6 is connected to a motor connector 7 (see FIG. 3).

As shown in FIG. 2, the electronic control device 1 includes a case 8, a circuit board 9 fixed to the case 8, and a cover 10 that covers the opening 44 of the case 8.

As shown in FIG. 2, the case 8 includes a bottom wall portion 8A having a substantially plate shape, and a tubular peripheral wall portion 8B erected vertically so as to surround all four sides of the bottom wall portion 8A. There is.

Further, the peripheral wall portion 8B is erected on the cover 10 side with respect to the bottom wall portion 8A so that the bottom wall portion 8A opens, while the peripheral wall portion 8B also stands on the hydraulic block 3 side with respect to the bottom wall portion 8A. By installing it, a storage chamber 70 for accommodating the solenoid valve electromagnetic coil 5 and the oil pressure sensor 4 is formed.

On the lower surface (hydraulic block 3 side) of the bottom wall portion 8A, as shown in FIG. 3, a solenoid valve solenoid coil 5 and a hydraulic sensor 4 are mounted in a storage chamber 70 surrounded by the peripheral wall portion 8B, and the peripheral wall portion 8B The end portion 65 of the valve has an annular seal portion 64 so as to be in close contact with the hydraulic block 3. In this embodiment, eight solenoid valve solenoid coils 5 are housed in a half of the storage chamber 70 on the side where the motor connector 7 is housed, while two are housed in the other half of the storage room 70. Two solenoid valve solenoid coils 5 are housed adjacent to the seal portion 64.

Further, in the remaining half of the accommodation chamber 70, the oil pressure sensor 4 is provided at a position between the two mounting holes 13 and 13.

A part of the bottom wall portion 8A projects from the seal portion 64, and the overhanging portion 66 is integrally provided with a connector 65 opened in the direction of the hydraulic block 3. The connector 65 includes, for example, a power supply terminal connected to a battery and a signal terminal serving as a transmission path for various signals such as a resolver, CAN communication, and I / O. As shown in FIG. 2, these power supply terminals and signal terminals are pulled out into the opening 44, project from the bottom wall portion 8A, and are connected to circuit wiring (not shown) on the circuit board 9 side.

In the case 8, the bottom wall portion 8A, the peripheral wall portion 8B, and the connector 65 are integrally molded by, for example, molding with a synthetic resin material to form a block plate, and as shown in FIG. 1, the outer shape is the hydraulic block 3 or It is formed in a substantially rectangular shape along the outer shape of the cover 10. In the case 8, four bolts 14, 14, 14, 14 are provided in four mounting holes 13, 13, 13, 13 provided around the annular seal portion 64 (only two bolts 14, 14 are shown in FIG. 1). Is shown) to be attached to the hydraulic block 3.

Further, in the case 8, the circuit board 9 is housed and fixed in the opening 44 of the bottom wall part 8A surrounded by the peripheral wall part 8B on the cover 10 side, and the solenoid valve electromagnetic coil 5 and the hydraulic pressure housed in the housing chamber 70. In addition to the energizing terminal of the sensor 4, the motor connector terminal 12 and the terminal 11 wired from the connector 65 project to be electrically connected to the circuit board 9, and in addition, two electric components such as a capacitor 15 and a coil 16 are accommodated. Will be done. The capacitor 15 and the coil 16 are electrically connected to the circuit board 9 and serve as electrical components constituting an electromagnetic filter circuit that reduces electromagnetic noise.

The housed solenoid valve solenoid coil 5 and the energizing terminal of the hydraulic sensor 4 penetrate the bottom wall portion 8A and project toward the circuit board 9.

As shown in FIG. 4, the capacitor 15 includes a columnar capacitor main body 17, and two capacitor terminals 18 and 18 project from one end of the capacitor main body 17.

Further, the coil 16 includes a coil main body 19 wound in a spiral shape, and both ends of the spiral winding are set as two coil terminals 20 and 20 as shown in FIG. 4, and two capacitor terminals are used. It protrudes in the same direction as 18 and 18. That is, the coil 16 projects toward the circuit board 9 (see FIG. 2).

The capacitor 15 and the coil 16 are held by the holder member 21 and positioned with respect to the case 8. The holder member 21 is made of, for example, a synthetic resin material. The holder member 21 includes a plate-shaped base portion 22, which is located on one end side of the capacitor 15 and the coil 16 in a state where the capacitor 15 and the coil 16 are arranged adjacent to each other as shown in FIG. It is formed in a substantially rectangular shape so as to cover the above. On the peripheral edge of the base 22, the holder member 21 is orthogonal to the base 22 from the back surface 22b of the base 22, and the facing surface facing the coil 16 is formed as a curved surface along the winding of the coil 16 in the longitudinal direction of the coil 16 ( A plate-shaped coil locking portion 23 extending downward in FIG. 5), a substantially cylindrical coil-side positioning pin 24 extending downward from the vicinity of the tip of the coil locking portion 23, and an outer peripheral portion of the coil main body portion 19. It includes two coil holding portions 25 and 25 for gripping 19a by snap fitting. The coil locking portion 23 projects from the back surface 22b of the base portion 22 toward the bottom wall portion 8A (see FIG. 2) at a position between the two coil terminal through holes 37, 37 described later. The two coil holding portions 25, 25 project from the back surface 22b toward the bottom wall portion 8A (see FIG. 2) near the edge portion of the base portion 22 on the side opposite to the coil locking portion 23. As shown in FIG. 6, the coil locking portion 23 includes a curved surface 23a that follows the arc of the outer peripheral portion 19a of the winding of the coil 16, and a tip portion 26 that comes into contact with a part of the case 8. ..

A part of the outer circumference of the generally cylindrical coil-side positioning pin 24 is coupled to the surface 23b of the coil locking portion 23 opposite to the curved surface 23a, and the coil is used at the center of the coil locking portion 23. It protrudes from the tip 26 of the locking portion 23. The two coil holding portions 25, 25 include plate-shaped contact portions 27, 27 and support hooks 29, 29 extending upward in FIG. 6 from the tips of the corresponding contact portions 27, 27. The length of the coil holding portion 25 is set so that the claw 30 of the support hook 29 can engage with the lower end 19b of the coil main body portion 19 with the coil 16 attached to the holder member 21. (See FIG. 8).

Similarly, in order to hold and position the capacitor 15, the holder member 21 has a plate-shaped capacitor contact portion 31, a substantially cylindrical capacitor-side positioning pin 32, and four capacitor holding portions 33, 33. , 33, 33, and so on. The capacitor contact portion 31 is provided on the side portion 22c of the base portion 22 on the side where the capacitor holding portion 33 is provided. Of the four capacitor holding portions 33, 33, 33, 33, the capacitor holding portions 33, 33 are located on both sides of the capacitor contact portion 31, while the remaining two capacitor holding portions 33. , 33 are arranged so as to face the capacitor holding portions 33, 33 on both sides of the capacitor contact portion 31. The length of the capacitor holding portion 33 is shorter than the length of the capacitor main body portion 17 along the protruding direction of the capacitor terminal 18.

Further, in the plate-shaped base portion 22, at a position corresponding to the coil main body portion 19, as shown in FIG. 5, the inside of a through hole having a substantially circular cross section cut along a surface parallel to the surface 22a of the base portion 22. Is divided into four by a partition portion 34 having a substantially X-shape, so that four through holes 35, 35, 35, 35 having a substantially fan shape are formed. As shown in FIG. 5, the base portion 22 is formed with a recessed portion 36 around the arcs of the two through holes 35 and 35 on the coil locking portion 23 side. Two coil terminal through holes 37, 37 into which the two coil terminals 20 and 20 are inserted are formed on the bottom surface 36a of the recessed portion 36, respectively. That is, the recessed portion 36 is formed around the two coil terminal through holes 37, 37.

Further, as shown in FIG. 5, the base portion 22 has a through hole having a substantially rectangular cross section formed along a plane parallel to the surface 22a of the base portion 22 at a position corresponding to the capacitor main body portion 17. Four through holes 39, 39, 39, 39 are formed by partitioning into four by the partition 38. The surface 38a of the partition 38 (the upper surface of FIG. 5) is located below the surface 22a of the base 22, and therefore the base 22 is formed with a recess 40 above the partition 38. ing. The partition 38 is formed with two through holes 41 and 41 for the capacitor terminals into which the two capacitor terminals 18 and 18 are inserted, respectively.

The through holes 37 and 41 guide the terminals 20 and 18 when the holder member 21 is attached to the coil 16 and the capacitor 15.

In order to allow the terminals 20 and 18 to penetrate through the base 22, instead of the through hole 37 for the coil terminal and the through hole 41 for the capacitor terminal, a groove whose bottom surface extends along the terminals 20 and 18 and a notch having a C-shaped cross section are formed. May be used.

The through hole 37 for the coil terminal, the through hole 41 for the capacitor terminal, the groove and the notch having a C-shaped cross section correspond to the "guide portion" described in the claims.

In order to appropriately arrange the coil 16 and the capacitor 15 in the case 8 by using the holder member 21, a coil recess 42 and a capacitor recess 43 are formed in a part of the bottom wall portion 8A of the case 8, respectively. .. In this embodiment, as shown in FIG. 3, the coil recess 42 and the capacitor recess 43 are provided adjacent to the connector 65 on the lower surface of the portion 66 protruding from the seal portion 64 of the bottom wall portion 8A. .. As shown in FIG. 2, the coil recess 42 and the capacitor recess 43 are recessed so as to be orthogonal to the opening 44 of the case 8 and open toward the opening 44. That is, the coil recess 42 and the capacitor recess 43 are recessed toward the hydraulic block 3 (see FIG. 1).

As shown in FIG. 7, when the coil recess 42 is viewed by projecting it in the direction of the central axis 45 of the capacitor 15, the coil recess 42 is located outside the outer peripheral portion 19a of the coil body 19 having a substantially circular cross section. It projects in a rectangular shape corresponding to the two terminals 20 and 20. Further, since the coil 16 is inserted into the coil recess 42 in a state of being attached to the holder member 21 as shown in FIG. 8, the coil recess 42 is a locking portion into which the coil locking portion 23 is inserted. A recess 42A for positioning and a recess 42B for positioning pin into which the coil-side positioning pin 24 is inserted are provided.

The positioning pin recess 42B is formed so as to project from the center of the linear side wall 67 of the locking recess 42A toward the terminal 11 in a semicircular shape.

Further, the coil recess 42 projects from the outer peripheral portion 19a of the coil main body 19 having a substantially circular cross section at two locations in a substantially rectangular shape so that the two coil holding portions 25, 25 fit together. , 46 are provided.

Similarly, since the capacitor 15 is also inserted into the capacitor recess 43 while being attached to the holder member 21 as shown in FIG. 8, the capacitor recess 43 is locked into which the capacitor contact portion 31 is inserted. A recess 43A for a portion and a recess 43B for a positioning pin into which a capacitor-side positioning pin 32 is inserted are provided.

The positioning pin recess 43B is formed so as to project from the linear side wall 68 of the locking recess 43A to the side opposite to the coil recess 42 in a semicircular shape.

Further, the capacitor recess 43 projects from the outer peripheral portion 17a of the capacitor body 17 having a substantially circular cross section at four locations in a substantially rectangular shape so that the four capacitor holding portions 33, 33, 33, 33 fit. It is provided with overhanging portions 47, 47, 47, 47.

As shown in FIG. 2, the circuit board 9 includes a plurality of connector wall terminal through holes 48 into which a plurality of terminals 11 are inserted, and a plurality of motor connector terminal through holes into which a plurality of motor connector terminals 12 are inserted. It has 49 mag. Further, as shown in FIG. 10, the circuit board 9 has two coil terminal through holes 50 and 50 into which the two coil terminals 20 and 20 are inserted and two capacitor terminals 18 and 18 into which the circuit board 9 is inserted. Through holes 51 and 51 for capacitor terminals are provided. The inner diameter of the through hole 50 for the coil terminal and the inner diameter of the through hole 51 for the capacitor terminal are set to be slightly larger than the outer diameter of the coil terminal 20 and the outer diameter of the capacitor terminal 18, respectively.

Further, as shown in FIG. 10, a plurality of vias 52 penetrating the circuit board 9 are formed on the circuit board 9. In this embodiment, eight vias 52 are formed in the vicinity of the through holes 37 for each coil terminal on the coil 16 side. The eight vias 52 are located above the recess 36. Further, in this embodiment, on the capacitor 15 side, six vias 52 are formed in the vicinity of the through hole 41 for the capacitor terminal on the upper side of FIG. 10, while eight vias 52 are formed on the lower side of FIG. It is formed near the through hole 41 for the capacitor terminal. The six vias 52 and the eight vias 52 are located above the corresponding through holes 39, 39, respectively.

As shown in FIG. 2, the cover 10 is formed of, for example, an aluminum alloy having excellent thermal conductivity in a thin dish shape along the outer shape of the bottom wall portion 8A of the case 8. The cover 10 includes a flat upper wall 10A and an annular side wall 10B integrally formed on the outer peripheral edge of the upper wall 10A.

Next, a method of assembling the electronic control device 1 will be described.

First, as shown in FIG. 8, the coil 16 and the capacitor 15 are attached to the holder member 21. At the time of mounting, the two coil terminals 20 and 20 and the two capacitor terminals 18 and 18 are inserted into the corresponding coil terminal through holes 37 and 37 and the capacitor terminal through holes 41 and 41 of the base 22, respectively. After insertion, the claws 30 and 30 of the support hooks 29 and 29 of the two coil holding portions 25 and 25 are engaged with the lower end 19b of the coil main body 19 by snap fit, while holding for four capacitors. The claws 53, 53, 53, 53 of the portions 33, 33, 33, 33 grip the outer peripheral portion 17a of the capacitor main body portion 17 by snap-fitting.

The capacitor holding portion 33 may be configured such that the claw 53 engages with the lower end 17b of the capacitor main body 17.

Further, the capacitor 15 may be a capacitor having an explosion-proof valve function that opens (opens) the valve when the internal pressure rises to release the internal pressure. In this case, for example, since the valve is opened at the lower end of the capacitor, a slit is formed at the lower end.

When a capacitor having such an explosion-proof valve function is gripped by the capacitor holding portion 33, the claw 53 is an outer peripheral portion of the capacitor main body 17 in order to avoid interference between the slit at the lower end of the capacitor and the claw 53. It is preferable to grip 17a. Thereby, the influence of the valve opening at the lower end of the capacitor on the claw 53 of the capacitor holding portion 33 can be reduced.

Then, the coil 16 and the capacitor 15 attached to the holder member 21 are inserted into the coil recess 42 and the capacitor recess 43 of the case 8. After insertion, as shown in FIG. 11, the tip portion 26 of the coil locking portion 23 is in contact with the bottom surface 54 of the locking portion recess 42A, which is a part of the case 8, while the capacitor hit. The tip 55 of the contact portion 31 is in contact with the bottom surface 56 of the contact portion recess 43A, which is also a part of the case 8.

Therefore, the coil 16 and the capacitor 15 attached to the holder member 21 are correctly inserted into the coil recess 42 and the capacitor recess 43, respectively, and the inclination of the coil 16 and the capacitor 15 with respect to the case 8 can be suppressed.

Similarly, the tips 28, 28 of the contact portions 27, 27 of the coil holding portions 25, 25 are also in contact with the bottom surfaces of the overhanging portions 46, 46 (not shown).

Further, the coil-side positioning pin 24 is inserted into the positioning pin recess 42B, while the capacitor-side positioning pin 32 is inserted into the positioning pin recess 43B.

When the holder member 21, the coil 16 and the capacitor 15 are housed in the case 8, the base portion 22 of the holder member 21 is parallel to the bottom wall portion 8A of the case 8.

Therefore, the coil 16 and the capacitor 15 are positioned in the direction orthogonal to the insertion direction of the coil 16 and the capacitor 15 while the inclination of the coil 16 and the capacitor 15 in the coil recess 42 and the capacitor recess 43 is suppressed. be able to.

Then, the coil terminal 20, the capacitor terminal 18, the connector wall terminal 11, the motor connector terminal 12, and the like in the case 8 are replaced with the corresponding coil terminal through hole 50, the capacitor terminal through hole 51, and the connector wall of the circuit board 9. It is inserted into the through hole 48 for the part terminal, the through hole 49 for the motor connector terminal, and the like, respectively. After insertion, the circuit board 9 is parallel to the base 22 of the holder member 21 and the bottom wall 8A of the case 8, and the base 22 is arranged between the circuit board 9 and the bottom wall 8A. ..

Therefore, with the tilt of the coil terminal 20 and the capacitor terminal 18 with respect to the case 8 suppressed, the coil terminal 20 and the capacitor terminal 18 head toward the corresponding through hole 50 for the coil terminal and the through hole 51 for the capacitor terminal of the circuit board 9. Therefore, the coil terminal 20 and the capacitor terminal 18 can be easily inserted into the coil terminal through hole 50 and the capacitor terminal through hole 51.

At this time, on the coil 16 side, as shown in FIG. 12, the opening surface 57 of the recessed portion 36 of the base portion 22 is covered with the circuit board 9, and the recessed portion 36 between the base portion 22 and the circuit board 9. The coil side passage 58 is formed in the vehicle. Similarly, on the capacitor 15 side as well, the opening surface 59 of the recessed portion 40 of the base portion 22 is covered with the circuit board 9, and the recessed portion 40 forms a capacitor-side passage 60 between the base portion 22 and the circuit board 9. ing.

Next, as a pretreatment for soldering, hot air is blown from the surface 9a side of the circuit board 9 on the side opposite to the base 22. At this time, on the coil side, the hot air flows between the coil terminal through hole 50 and the coil terminal 20 of the circuit board 9 as shown by an arrow H in FIG. 12, and flows into the coil side passage 58. Similarly, on the capacitor 15 side, hot air flows along the arrow H direction between the capacitor terminal through hole 51 and the capacitor terminal 18 of the circuit board 9, and flows into the capacitor side passage 60.

Then, the coil terminals 20, 20, the capacitor terminals 18, 18, the terminals 11, 12, and the like are fixed to the circuit board 9 by soldering from the surface 9a side of the circuit board 9 on the side opposite to the base 22.

As described above, in this embodiment, with the coil 16 and the capacitor 15 held by the holder member 21 in the case 8, the locking portion 23 and the contact portion 31 of the holder member 21 are a part of the case 8 and the main body. The portions 17 and 19 are in contact with each other in the insertion direction. Therefore, while the holding portions 25 and 33 of the holder member 21 hold the main bodies 17 and 19 of the coil 16 and the capacitor 15 in the case 8, the movement of the coil 16 and the capacitor 15 with respect to the case 8 is the insertion of the main bodies 17 and 19. Be regulated in the direction. As a result, when the coil terminal 20 and the capacitor terminal 18 are inserted into the corresponding through hole 50 for the coil terminal and the through hole 51 for the capacitor of the circuit board 9, the terminals 20 and 18 and the through hole 50 and 51 are misaligned. Be prevented. Therefore, the terminals 20 and 18 can be easily attached to the circuit board 9, and the productivity of the electronic control device 1 is improved. Further, such easy attachment of the circuit board 9 makes it possible to automate the assembly of the circuit board 9 to the terminals 20 and 18.

Further, in this embodiment, since the coil 16 and the capacitor 15 are held by the holder member 21, for example, the solder connection between the terminals 20 and 18 and the circuit board 9 when vibration is applied while the vehicle is running. The load applied to the part can be reduced.

Further, in this embodiment, the coil locking portion 23 and the capacitor contact portion 31 of the holder member 21 are inserted into the coil recess 42 and the capacitor recess 43 having a certain depth, so that the circuit board When the 9 is attached to the terminals 20 and 18, the locking portion 23 and the contact portion 31 are less likely to come off from the recesses 42 and 43. As a result, for example, when an external force is applied, the coil 16 and the capacitor 15 are suppressed from being detached or displaced.

Further, in this embodiment, since the coil terminal through hole 37 and the capacitor terminal through hole 41 are provided in the base 22 of the holder member 21, the through holes 37, 41 on the base 22 where the movement with respect to the case 8 is restricted are provided. Terminals 20 and 18 are inserted into. Therefore, the terminals 20 and 18 can be inserted into the through holes 50 and 51 of the circuit board 9 in a state where the positions of the terminals 20 and 18 with respect to the case 8 are stable.

Further, in this embodiment, since the through holes 35 and 39 are provided in the base portion 22 of the holder member 21, the air permeability between the circuit board 9 and the coil 16 and the capacitor 15 is improved. As a result, the temperatures of the circuit board 9, the coil 16, and the capacitor 15 can be raised when hot air is blown from the surface 9a side of the circuit board 9 before soldering. Therefore, at the time of soldering, solder fillets are easily formed on both sides 9a and 9b of the circuit board 9, and soldering can be easily performed.

Further, since the coil side passage 58 and the capacitor side passage 60 are formed between the circuit board 9 and the base portion 22 of the holder member 21, the hot air before soldering passes through the coil side passage 58 and the capacitor side passage 60 to the base portion. It becomes easy to flow into the through holes 37 and 41 of 22. Therefore, the temperatures of the coil 16 and the capacitor 15, particularly the terminals 20 and 18, are likely to rise due to the hot air, which facilitates soldering. Further, on the condenser 15 side, since the condenser side passage 60 communicates with the through hole 39, hot air easily flows into the through hole 39 through the condenser side passage 60. As a result, the heating time of the circuit board 9 and the capacitor main body 17 by hot air can be shortened.

Further, in this embodiment, since a plurality of vias 52 are provided at positions corresponding to the coil side passage 58 and the condenser side passage 60, more hot air flows into the coil side passage 58 and the condenser side passage 60 through the via 52. be able to. Therefore, soldering becomes easy.

FIG. 13 shows the holder member 21 of the second embodiment. In the second embodiment, the holder member 21 does not include the coil locking portion 23, the coil side positioning pin 24, the capacitor contact portion 31, and the capacitor side positioning pin 32. Further, as shown in FIG. 14, in the second embodiment, the seat surface 62 is formed adjacent to the upper surface 61 of the connector wall portion 8C of the case 8, and the seat surface 62 and the upper surface 61 are locked. It is connected by a surface 63. In a state where the coil 16 and the capacitor 15 attached to the holder member 21 are inserted into the coil recess 42 and the capacitor recess 43, for example, on the coil 16 side, the lower surface 22b of the base 22 is located near the side 22c of the base 22. It is in contact with the seat surface 62 of the case 8, and the side portion 22c of the base portion 22 is in contact with the locking surface 63.

Therefore, in the second embodiment, the lower surface 22b of the base 22 abuts on the seating surface 62 of the case 8, so that the movement of the coil 16 and the capacitor 15 is defined in the insertion direction of the coil 16 and the capacitor 15. Further, when the side portion 22c of the base portion 22 comes into contact with the locking surface 63, the coil 16 and the capacitor 15 are positioned in the direction orthogonal to the insertion direction of the coil 16 and the capacitor 15.

FIG. 15 shows the holder member 21 of the third embodiment. The holder member 21 of the third embodiment does not have recesses 36, 40 on the coil 16 side and the capacitor 15 side of the base portion 22 as compared with the holder member 21 of the first embodiment.

Therefore, also in the third embodiment, the holder member 21 securely holds the coil 16 and the capacitor 15 in the case 8, and the coil 16 and the capacitor 15 move with respect to the case 8 in the insertion directions of the main bodies 17 and 19. Be regulated.

1 ... Electronic control device 2 ... Hydraulic unit 3 ... Hydraulic block 6 ... Electric motor 8 ... Case 8A ... Bottom wall 9 ... Circuit board 10 ... Cover 15 ... Capacitor 16 ... Coil 21 ... Holder member 22 ... Base 23 ... Coil locking part 24 ... Coil side positioning pin 25 ... Coil holding part 31 ... Capacitor Contact portion 32: Capacitor side positioning pin 33: Capacitor holding portion 42: Coil recess 43: Capacitor recess 50: Coil terminal through hole 51: Capacitor terminal Through hole

Claims (7)

Electrical components with terminals protruding from one end of the main body,
A case in which a recess into which the main body of the electric component can be inserted is formed in a part of the bottom wall, and
A circuit board provided with a through hole arranged in the case so as to cover the recess and to which terminals of the electric component are electrically connected.
A holder member that is interposed between the circuit board and the case and holds the electric component,
With
The holder member comes into contact with a plate-shaped base portion located between the circuit board and the case, a holding portion that grips the outer peripheral portion of the main body portion, and a part of the case and the main body portion in the insertion direction. An electronic control device including a contact portion. The electronic control device according to claim 1, wherein the contact portion extends from the base portion along the outer peripheral portion of the main body portion and abuts on the bottom surface of the contact portion recess formed in the case. .. The electronic control device according to claim 1 or 2, wherein the base portion includes a guide portion for guiding terminals of the electric component. The electronic control device according to any one of claims 1 to 3, wherein the base portion is provided with a through hole at a position corresponding to the main body portion of the electric component. The electronic control device according to claim 3, wherein the base portion is provided with a recessed portion opened on the circuit board side around the guide portion . The electronic control device according to claim 4, wherein the base portion is provided with a recess portion opened on the circuit board side around the through hole. A hydraulic block including a solenoid valve for controlling the brake oil pressure of a wheel cylinder attached to a wheel of a vehicle and a pump for supplying brake liquid to the wheel cylinder.
The motor that drives the pump and
A case that is attached to the hydraulic block and has a recess in a part of the bottom wall portion that allows the main body portion of an electric component having a terminal protruding from one end of the main body portion to be inserted.
A circuit board arranged in the case so as to cover the recess, provided with a through hole to which terminals of the electric component are electrically connected, and controlling the solenoid valve and the motor.
A holder member that is interposed between the circuit board and the case and holds the electric component,
With
The holder member comes into contact with a plate-shaped base portion located between the circuit board and the case, a holding portion that grips the outer peripheral portion of the main body portion, and a part of the case and the main body portion in the insertion direction. A brake fluid pressure control device including a contact portion.

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