Electrical components and brake fluid pressure control units for vehicles.

Abstract

In this electric component assembly, an electric component is favorably prevented from falling out while adopting a simple connection structure of the connection terminal into the control board. This electric component assembly is provided with a housing (202) to which the electric component is attached, and the electric component and the housing (202) are fixed to one surface (101) of a substrate (100). The electric component is provided with a connection terminal pressed into a through-hole (201a) of a substrate (201) provided in the housing (202), and the insertion direction of the connection terminal into the through-hole (201a) is the direction of attachment to the housing (202). A rib (25) is provided projecting from one of an outer surface of the electric component intersecting the attachment direction and an inner surface of the housing (202) opposite of said outer surface, and a recessed groove (226) for insertion of the rib (25) is provided in the other. On the inner surface of the groove (226), a protrusion (226a) is provided that contacts the rib (25).

Description

Electrical component assembly and vehicle brake fluid pressure control device

[0001] The present invention relates to an electrical component assembly and a brake fluid pressure control device for a vehicle.

[0002] Conventionally, there are known vehicle brake fluid pressure control devices that control the brake fluid pressure applied to wheel brakes in the brake systems of vehicles such as motorcycles and automobiles. Some vehicle brake fluid pressure control devices include a base body having a brake fluid passage formed therein and a solenoid valve attached to one surface of the base body. An electrical component assembly is attached to one surface of the base body, and the electrical component assembly includes a coil assembly as an electrical component attached to the solenoid valve and a housing that covers the coil assembly. The coil assembly is connected to a control board disposed within the housing. In such vehicle brake fluid pressure control devices, the control board controls the supply of electricity to the coil assembly to open and close the solenoid valve, thereby varying the brake fluid pressure in the brake fluid passage and controlling the braking force of the wheel brakes.

[0003] The coil assembly includes a yoke, a bobbin disposed within the yoke, and a coil wound around the bobbin. A known connection terminal connected to the coil includes a press-fit terminal, as shown in Patent Document 1, for example. The press-fit terminal is press-fitted into an insertion hole in a control board, thereby electrically connecting the coil assembly to the control board. Furthermore, to simplify the assembly structure, a structure has been considered in which electrical components such as the coil assembly are fixed to the housing only by connection with the press-fit terminal or the like.

[0004] Patent No. 5261223

[0005] However, a structure in which an electrical component such as a coil assembly is fixed to a housing solely by connection with a connection terminal such as a press-fit terminal may cause the following problems: For example, if an excessive external force is applied in the connection direction of the press-fit terminal, the terminal portion that is inserted and pressed against the control board may bend, causing the coil assembly or the like to fall off the control board.

[0006] The present invention solves the above-mentioned problems and provides an electrical component assembly and a vehicle brake fluid pressure control device that can effectively prevent electrical components from falling off while adopting a simple connection structure to a control board using connection terminals.

[0007] To solve the above-mentioned problems, the present invention provides an electrical component assembly comprising an electrical component and a housing in which the electrical component is assembled, the electrical component and the housing being fixed to one surface of a base. The electrical component has connection terminals that are inserted by pressure contact into through holes in a circuit board provided in the housing, and the direction in which the connection terminals are inserted into the through holes is the assembly direction for the housing. The electrical component assembly comprises a rib protruding from one of an outer surface of the electrical component that intersects the assembly direction and an inner surface of the housing that faces the outer surface, and a groove recessed in the other surface into which the rib is inserted, and a protrusion that abuts against the rib is provided on the inner surface of the groove.

[0008] In the electrical component assembly of the present invention, the electrical components can be positioned in the housing by inserting the ribs into the grooves and abutting the protrusions, thereby enabling the electrical component assembly of the present invention to employ a simple connection structure to the control board using connection terminals while effectively preventing the electrical components from falling off.

[0009] In the electrical component assembly, it is preferable that the protrusion protrude into the inner surface of the groove. With this configuration, the rib abuts against the protrusion and is press-fit into the groove. This allows the electrical component to be fixed to the housing, and the connection terminals to be accurately positioned in predetermined positions in the housing. This makes it easy to set the positions of the connection terminals, and to easily connect the connection terminals to the control board.

[0010] In the electrical component assembly, the connection terminals are preferably press-fit terminals, which allow easier connection between the terminals and the control board.

[0011] In the electric component assembly, the electric component is a coil assembly for driving a solenoid valve, and the coil assembly preferably includes a bobbin, a coil formed by winding a wire around the bobbin, a yoke attached to the bobbin, and the connection terminal electrically connected to the wire.

[0012] The present invention provides a vehicle brake fluid pressure control device that includes the above-described electrical component assembly, is connected between a master cylinder and a wheel brake, and controls the brake fluid pressure acting on the wheel brake. The vehicle brake fluid pressure control device has the above-described solenoid valve attached to the base, and the above-described coil assembly attached to the solenoid valve.

[0013] In the vehicle brake fluid pressure control device of the present invention, the electrical components can be fixed in predetermined positions in the housing, and the connection terminals can be positioned in predetermined positions with high precision, thereby improving assembly ease and reducing costs.

[0014] The electrical component assembly and vehicle brake fluid pressure control device of the present invention can employ a simple connection structure to the control board using connection terminals, while still effectively preventing electrical components from falling off.

[0015] 1 is a side cross-sectional view of a vehicle brake fluid pressure control device equipped with an electric component assembly according to a first embodiment of the present invention; FIG. 2 is an exploded perspective view of the vehicle brake fluid pressure control device; FIG. 3 is a rear view of the electric component assembly according to the first embodiment; FIG. 4 is a rear view of a housing which is a component of the electric component assembly according to the first embodiment; FIG. 5 is a diagram of a coil assembly according to the first embodiment, where (a) is a perspective view seen from the side where a yoke is arranged, and (b) is an enlarged perspective view of a press-fit terminal portion; FIG. 6 is a diagram of the coil assembly when the side where the yoke is arranged is the rear, where (a) is a plan view, (b) is a rear view, (c) is a right side view, (d) is a vertical cross-sectional view, and (e) is a bottom view; and FIG. 7 is a diagram of a press-fit terminal which is a component of the coil assembly according to the first embodiment, where (a) is a front view, (b) is a left side view, (c) is a rear view, and (d) is an enlarged rear view of a main portion. 1A and 1B are diagrams showing an electric component assembly according to a first embodiment, in which (a) is a partial perspective view showing the state when the coil assembly is being assembled to the housing, and (b) is a partial perspective view showing the state after assembly.

[0022] FIG. 1B is a rear view showing the housing adhesive margins and the electric component adhesive margins in the electric component assembly according to the first embodiment.

[0023] FIG. 1C is a front view showing adhesive regions in a base body applied to the vehicle brake fluid pressure control device according to the first embodiment.

[0024] FIG. 1D is a side cross-sectional view showing a vehicle brake fluid pressure control device provided with an electric component assembly according to a second embodiment of the present invention.

[0025] FIG. 1E is a perspective view showing the layout inside the housing of the vehicle brake fluid pressure control device.

[0026] FIG. 1F is a front view showing a base body applied to the vehicle brake fluid pressure control device (a view showing the mounting surface to which the electric component assembly is attached).

[0027] FIG. 1F is a rear view showing an electric component assembly according to a second embodiment.

[0028] FIG. 1G is a rear view showing a housing according to the second embodiment.

[0029] FIG. 1G is a diagram showing a coil assembly according to the second embodiment, in which (a) is a perspective view seen from the side where the yoke is arranged, and (b) is an enlarged perspective view showing a press-fit terminal portion.

[0029] FIG. 1H is a diagram showing a press-fit terminal according to the second embodiment, in which (a) is a front view, (b) is a left side view, and (c) is a rear view. 10A and 10B are diagrams showing an electrical component assembly of a second embodiment, in which FIG. 10A is a partial perspective view showing the state when the coil assembly is being assembled to the housing, and FIG. 10B is a partial perspective view showing the state after assembly.1 is a front view showing a bonding area of ​​a base body applied to a vehicle brake fluid pressure control device according to a second embodiment of the present invention;

[0016] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, when referring to the front, rear, top, and bottom of a vehicle brake fluid pressure control device, the directions shown in Fig. 1 are used as references, and when referring to the left and right, the directions shown in Fig. 3 and Fig. 4 are used as references. Furthermore, when referring to the front, rear, left, right, top, and bottom of a coil assembly, which is an electrical component, the directions shown in Fig. 5(a) are used as references, but this is not intended to limit the assembly direction of the coil assembly to the vehicle brake fluid pressure control device.

[0017] In this embodiment, the electrical component assembly of the present invention will be described as being applied to a vehicle brake fluid pressure control device for a two-wheeled vehicle having two brake systems, although it may also be applied to a vehicle brake fluid pressure control device for a four-wheeled vehicle.

[0018] (Configuration of Vehicle Brake Fluid Pressure Control Device) The vehicle brake fluid pressure control device U is connected between a master cylinder (not shown) and wheel brakes to control the brake fluid pressure acting on the wheel brakes. As shown in FIGS. 1 and 2 , the vehicle brake fluid pressure control device U includes a base 100 on which are mounted solenoid valves V1 and V2 corresponding to two brake systems, a motor M, a reciprocating pump P, and the like. The vehicle brake fluid pressure control device U includes an electronic control unit 200 as an electrical component assembly including a control board 201 as an electrical component that detects vehicle body behavior and controls the opening and closing of the solenoid valves V1 and V2 and the operation of the motor M. In addition to the solenoid valves V1 and V2, various sensors such as pressure sensors can also be mounted on the base 100. A brake fluid passage (oil passage) (not shown) is formed within the base 100. The vehicle brake fluid pressure control device U is configured so that the control board 201 operates the solenoid valves V1 and V2 and the motor M based on the vehicle body behavior, thereby varying the brake fluid pressure in the brake fluid passage.

[0019] (Configuration of Base) The base 100 is a metal part formed in a substantially rectangular parallelepiped shape (see FIG. 2 ), and has a brake fluid passage (oil passage) formed therein (not shown). One of the faces of the base 100, the front face 101, is formed with a plurality of bottomed mounting holes 110 into which the solenoid valves V1 and V2 are attached. The number of solenoid valves V1 and V2 used varies depending on, for example, whether the target vehicle is a four-wheeled vehicle or the functions of the vehicle brake fluid pressure control device U. Each of the solenoid valves V1 and V2 of this embodiment is equipped with a coil assembly 1 as an electrical component. The solenoid valve V1 is, for example, a normally open solenoid valve. The solenoid valve V2 is, for example, a normally closed solenoid valve. Each coil assembly 1 is electrically connected to a control board 201 using a press-fit terminal 10, as described below.

[0020] As shown in Fig. 2, an inlet port 111, an outlet port 112, and the like are formed on an upper surface 103 of the base 100, to which piping leading to a wheel brake (not shown) is connected. A reservoir hole, and the like, to which reservoir components (not shown) that make up a reservoir are attached, are formed on a lower surface of the base 100. A pump hole 113, and the like, to which a reciprocating pump P is attached, are formed on a side surface 104 of the base 100. The holes formed in the base 100 communicate with each other directly or via brake fluid paths (not shown) formed inside the base 100.

[0021] (Motor Configuration) The motor M is an electric component that serves as a power source for the reciprocating pump P. The motor M is integrally fixed to the rear surface 102, which is the other surface of the base body 100. The motor M drives the reciprocating pump P. A motor bus bar (not shown) is connected to the motor M to supply power to the rotor. The motor bus bar is inserted into the terminal hole 115 (see FIG. 2) of the base body 100 and electrically connected to the control board 201 (see FIG. 1; the same applies below) through the bus bar terminal portion 230 (see FIGS. 2 and 4) of the electronic control unit 200. A press-fit terminal (not shown) is connected to the bus bar terminal portion 230 so as to protrude forward. The motor bus bar connected to the bus bar terminal portion 230 is electrically connected to the control board 201 via the press-fit terminal.

[0022] (Configuration of Electronic Control Unit) The electronic control unit 200 includes a coil assembly 1, a control board 201, a housing 202, and a cover 203. The coil assembly 1 is inserted into and fixed to the housing 202, as described below. The housing 202 accommodates the coil assembly 1 and the control board 201, as well as the solenoid valves V1, V2 and a motor bus bar (not shown) that protrude from the base 100. Details of the mounting structure of the coil assembly 1 to the housing 202 will be described later.

[0023] The control board 201 is a substantially rectangular board body on which an electric circuit is printed, and on which electronic components such as semiconductor chips are attached. The control board 201 has a plurality of through holes 201a formed therein, into which the press-fit terminals 10 of the coil assembly 1 are press-fitted. The control board 201 performs control based on information obtained from sensors (not shown) and the like provided in the vehicle, and on pre-stored programs. Specifically, the control board 201 controls the supply of current to the coil assembly 1 (see FIG. 2) and the motor M to control the opening and closing of the solenoid valves V1 and V2 and the driving of the motor M. Other examples of sensors include angular velocity sensors and acceleration sensors.

[0024] (Configuration of the housing) As shown in Fig. 1 , the housing 202 is a box body that is fixed integrally to the front surface 101 of the base body 100 while covering the solenoid valves V1, V2, etc. that protrude from the front surface 101 of the base body 100. The housing 202 is integrally molded from a resin material. The control board 201 and the coil assembly 1 are assembled to the housing 202. The front surface of the housing 202 opposite the base body 100 side and the rear surface on the base body 100 side are both open.

[0025] As shown in Fig. 2, the housing 202 includes a plate-shaped bottom 210, a first peripheral wall 211 provided on the front side of the bottom 210, and a second peripheral wall 212 provided on the rear side of the bottom 210. The bottom 210 has a substantially rectangular outer shape. The first peripheral wall 211 extends forward from the peripheral edge of the bottom 210 and has a substantially square outer periphery. The first peripheral wall 211 defines a first accommodation chamber 215 (see Fig. 1) therein that accommodates the substantially square-shaped control board 201.

[0026] The second peripheral wall portion 212 extends rearward from the rear surface of the bottom portion 210 and has a generally octagonal outer periphery. The second peripheral wall portion 212 defines a second housing chamber 216 (see FIG. 1 ) therein for housing the coil assembly 1. The first housing chamber 215 and the second housing chamber 216 are interconnected, as shown in FIGS. 1 and 3 . That is, no partition wall exists between the first housing chamber 215 and the second housing chamber 216. The housing 202 has such a partition-free structure, allowing the coil assembly 1 to be disposed across the second housing chamber 216 and the first housing chamber 215, as shown in FIG. 1 . This allows the housing 202 to be compact in the front-to-rear direction while still being able to accommodate the coil assembly 1 in an optimal manner.

[0027] As shown in FIG. 4 , a retaining wall 220 having an uneven shape is formed on the inner surface of the second peripheral wall portion 212. The retaining wall 220 includes boss portions 221 protruding to the left and right inner sides of the second housing chamber 216, terminal boss portions 222 protruding to the upper inner side, and retaining portions 223 protruding to the lower inner side. A total of four mounting spaces 225, in which the coil assembly 1 can be mounted, are formed on the inner surface of the retaining wall 220 between adjacent boss portions 221 and terminal boss portions 222, and between adjacent boss portions 221 and retaining portions 223. The inner surface shape of the retaining wall 220 in each mounting space 225 is the same and is formed to conform to the outer surface shape of the coil assembly 1. A pair of grooves 226 is recessed in the opening edge of each mounting space 225 for positioning and fixing the coil assembly 1 within the mounting space 225. In each mounting space 225, the grooves 226 are formed in opposing portions of the retaining walls 220 arranged opposite each other. As shown in Fig. 8(a), a protrusion 226a that provides a press-fit effect during assembly is formed on the inner surface of each groove 226. The protrusion 226a protrudes into the groove 226 and, as will be described later, abuts against a rib 25 (see Fig. 8(b)) that is inserted into the groove 226. Note that, as shown in Fig. 2, a reinforcing rib 227 is formed on the inner surface of the retaining wall 220.

[0028] A circumferential groove 228 is formed at the rear end of the second circumferential wall portion 212. An adhesive is applied to the circumferential groove 228 to secure the housing 202 to the front surface 101 of the base body 100. The adhesive hermetically seals the housing 202 to the front surface 101 of the base body 100. The circumferential groove 228 and the rib 25 contact, with the adhesive applied, an area indicated by an annular hatched line S11 (see FIG. 10) on the front surface 101 of the base body 100 in FIG. 2 and an area indicated by a linear hatched line S21 (see FIG. 10) at a position corresponding to the rib 25 and sandwiching the solenoid valves V1 and V2. The adhesive is applied to the annular hatched line S11 and the linear hatched line S21 in the same process. The housing 202 is attached to the base 100 by threading a fixing screw (not shown) inserted into the boss portion 221 of the retaining wall 220 of the second storage chamber 216 into the screw hole 116 of the base 100 (see Figures 2 and 10).

[0029] The lid 203 is a resin lid that seals an opening on the front side of the housing 202, which is opposite to the base 100 side. The lid 203 is fixed to the front end surface of the housing 202 by means of welding, adhesive bonding, screw fastening, or the like.

[0030] (Configuration of Coil Assembly) As shown in Figures 5(a) and 6, the coil assembly 1 includes a bobbin 2, a coil 50, a yoke 3, and a press-fit terminal 10 serving as a connection terminal. As shown in Figure 1, the coil assembly 1 is an electrical component accommodated in a housing 202, surrounding the solenoid valves V1 and V2. The coil assembly 1 is an electromagnetic coil that generates a magnetic field around each of the solenoid valves V1 and V2 when current is applied to the coil 50 from a control board 201 via the press-fit terminal 10. The coil assembly 1 is fixed to the front surface 101 of the base 100 via an adhesive, as described below.

[0031] (Bobbin Configuration) As shown in FIG. 6(d) , the bobbin 2 is a resin part (insulating part) having flanges 22, 23 formed on both the upper and lower ends of a cylindrical part 21. A circular insertion hole 21a serving as a bobbin-side insertion hole penetrates the center of the cylindrical part 21. The insertion hole 21a communicates with an upper yoke housing portion 22c formed in the upper flange 22 and with the hole 22a in the flange 22. The insertion hole 21a also communicates with a lower yoke housing portion 23a formed in the lower flange 23. The insertion hole 21a has an inner diameter D1. As shown in FIGS. 6(a) and 6(e) , the flanges 22, 23 have front portions formed in a semicircular shape in plan view corresponding to the winding shape of the coil 50, and rear portions formed in a substantially rectangular shape in plan view corresponding to the shape of the yoke. The inner diameter of the hole 22a of the flange 22 is larger than the inner diameter D1 of the insertion hole 21a.

[0032] As shown in Fig. 6(d), the upper flange 22 is formed to be thicker in the vertical direction than the lower flange 23. An upper yoke accommodating portion 22c capable of accommodating the upper portion 31 of the yoke 3 is formed inside the upper flange 22. The upper yoke accommodating portion 22c is open on the rear and front surfaces of the upper flange 22. The upper portion 31 of the yoke 3 is accommodated in the upper yoke accommodating portion 22c from the rear surface side of the upper flange 22.

[0033] The upper yoke housing portion 22c has a predetermined clearance between it and the upper portion 31 of the housed yoke 3 in a direction (horizontal direction) perpendicular to the axial direction of the bobbin 2. This allows the upper portion 31 of the yoke 3 to move horizontally within the upper yoke housing portion 22c by the amount of the clearance. Note that the flange portion 22 has excellent insulating properties because it covers almost the entire upper portion 31 of the yoke 3.

[0034] 6(c), two protrusions 22e, 22e (only one of which is shown) are formed at a predetermined distance in the left-right direction on the rear edge of the upper flange 22. The protrusions 22e are plate-like portions that protrude rearward from the rear edge of the upper flange 22 and are formed rectangular in plan view.

[0035] 5( a) and 5(b), terminal support portions 22b, 22b that support the base portions 11, 11 of the two press-fit terminals 10, 10 are formed on the left and right rear portions of the upper flange portion 22. Portions of the press-fit terminals 10, 10 are embedded in these terminal support portions 22b, 22b by insert molding. In other words, the terminal support portions 22b, 22b (upper flange portion 22) function as insulators for the press-fit terminals 10, 10. The upper portion 31 of the yoke 3 accommodated in the upper yoke accommodating portion 22c is disposed below the terminal support portions 22b, 22b. In other words, the two press-fit terminals 10, 10 are supported by the upper portion 31 of the yoke 3 via the terminal support portions 22b, 22b. Meanwhile, the terminal support portions 22b, 22b cover the portions of the upper portion 31 of the yoke 3 that support the press-fit terminals 10, 10. This ensures insulation between the press-fit terminals 10 and the yoke 3 .

[0036] As shown in Fig. 6(d), a lower yoke accommodating portion 23a capable of accommodating the lower portion 32 of the yoke 3 is formed inside the lower flange 23. The lower yoke accommodating portion 23a is open to the rear and bottom surfaces of the lower flange 23. In other words, the lower portion 32 of the yoke 3 is exposed on the bottom surface of the coil assembly 1 (see Fig. 6(e)). The lower portion 32 of the yoke 3 is accommodated in the lower yoke accommodating portion 23a from the rear surface side of the lower flange 23.

[0037] As shown in Figure 6(e), curved convex portions 23b, 23b that protrude inward are formed on opposite left and right portions of the inner surface of lower yoke housing portion 23a. Similar to upper yoke housing portion 22c described above, lower yoke housing portion 23a has a predetermined clearance between it and lower portion 32 of yoke 3 housed therein in a direction perpendicular to the axial direction of bobbin 2 (horizontal direction). This allows lower portion 32 of yoke 3 to move horizontally within lower yoke housing portion 23a by the amount of the clearance.

[0038] Square pillar-shaped ribs 25 are formed on the left and right side surfaces (outer surfaces of the coil assembly 1 intersecting the assembly direction) on the rear side of the lower flange 23. The ribs 25 function as fittings (positioning portions) when the coil assembly 1 is assembled into the second accommodating chamber 216 of the housing 202 (see FIG. 3 ). Specifically, as shown in FIGS. 2 and 3 , the ribs 25 are inserted into grooves 226 formed in the mounting space 225 of the second accommodating chamber 216. As a result, the ribs 25 abut against the protrusions 226 a of the grooves 226 and are press-fit into the grooves 226. This press-fit restricts the movement of the coil assembly 1 in a direction intersecting the assembly direction (the direction of the arrow in FIG. 8( a), the axial direction of the coil assembly 1) relative to the housing 202 and rotation about an axis parallel to the assembly direction.

[0039] Meanwhile, the rib 25 also functions as an electrical component adhesive margin S2 (see FIG. 9 ) for fixing the coil assembly 1 to the front surface 101 of the base 100 with an adhesive. Specifically, as shown in FIG. 8B , the lower surface 25 a of the rib 25 is flush with the rear surface 220 a of the retaining wall 220 when the rib 25 is press-fit into the groove 226. This allows the lower surface 25 a of the rib 25 to abut against the front surface 101 of the base 100 and function as the electrical component adhesive margin S2 for fixing the coil assembly 1 with an adhesive. Note that the ribs 25 may be inserted into grooves formed in an intermediate wall (not shown) provided inside the housing 202, for example. Here, the adhesive need not be limited to being applied only to the lower surface 25 a of the rib 25, but may be applied from the rib 25 to the lower surface 32 of the yoke 3. Alternatively, the adhesive may be applied partially to the lower surface 25 a of the rib 25. In either case, the coil assembly 1 may be interposed so as to be fixed to the front surface 101 of the base 100 by an adhesive.

[0040] The bobbin 2 as described above is produced by, for example, injection molding, etc. At the same time as the bobbin 2 is injection molded, the press-fit terminals 10, 10 are insert molded so that they are integrally joined to the flanges 22.

[0041] (Configuration of the Yoke) The yoke 3 is a component attached to the bobbin 2 and is made of a magnetic metal material. As shown in FIGS. 5( a) and 6(d), the yoke 3 is composed of an upper portion 31, a lower portion 32, and a side portion 33 connecting the upper portion 31 and the lower portion 32. The yoke 3 is formed into a generally concave longitudinal cross section (see FIG. 6(d)). The upper portion 31 is a portion accommodated in the upper yoke accommodating portion 22c of the upper flange portion 22 of the bobbin 2. The upper portion 31 has an outer shape similar to that of the upper flange portion 22 of the bobbin 2, with a semicircular front portion and a generally rectangular rear portion. The upper portion 31 is accommodated in the upper yoke accommodating portion 22c with the aforementioned clearance and is horizontally movable relative to the upper yoke accommodating portion 22c. The upper portion 31 is formed to have an outer shape slightly smaller than the lower portion 32, making it easier to distinguish between the top and bottom during assembly.

[0042] The upper portion 31 is accommodated in the upper yoke accommodating portion 22c, and is thereby disposed below the press-fit terminal 10 via the upper flange portion 22. In other words, the upper portion 31 supports the press-fit terminal 10 (terminal portion 12, base portion 11) on an axial extension of the terminal portion 12.

[0043] The lower portion 32 is a portion that is accommodated in the lower yoke accommodation portion 23a of the lower flange portion 23 of the bobbin 2 (see FIG. 6(d)). Similar to the external shape of the upper portion 31, the lower portion 32 has a semicircular front portion and a generally rectangular rear portion. As shown in FIG. 6(e), the lower portion 32 has recesses 32b, 32b formed in portions that face the protrusions 23b, 23b of the lower yoke accommodation portion 23a. When the lower portion 32 is accommodated in the lower yoke accommodation portion 23a, the recesses 32b, 32b of the lower portion 32 are loosely fitted (fitted with a gap) to the protrusions 23b, 23b of the lower yoke accommodation portion 23a. The lower portion 32 is accommodated in the lower yoke accommodating portion 23a with a clearance therebetween, and is movable horizontally relative to the lower yoke accommodating portion 23a with the protruding portions 23b, 23b loosely fitted into the recessed portions 32b, 32b as described above. In other words, the protruding portions 23b are fitted into the recessed portions 32b in a manner that allows the horizontal movement described above.

[0044] As shown in FIG. 6( d ), the yoke 3 has a circular insertion hole 31 a formed in the upper portion 31 and a circular mounting hole 32 a formed in the lower portion 32 as yoke-side insertion holes. These insertion holes 31 a, 32 a have the same inner diameter D2. The inner diameter D2 is set to a size that allows them to fit onto the solenoid valve V1 (V2). The relationship between the inner diameter D1 of the insertion hole 21 a of the bobbin 2 and the inner diameter D2 of the insertion holes 31 a, 32 a of the yoke 3 is set such that the inner diameter D1 is larger than the inner diameter D2, so that the inner diameter D1 on the bobbin 2 side is larger and the inner diameter D2 on the yoke 3 side is smaller.

[0045] (Configuration of Press-Fit Terminals) As shown in Fig. 5(b), the two press-fit terminals 10 are metal components partially insert-molded into the terminal support portions 22b (bobbin 2). As shown in Fig. 5(a), the two press-fit terminals 10 are disposed at a predetermined distance in the left-right direction. Ends of the windings 51 are electrically connected to the two press-fit terminals 10, respectively.

[0046] As shown in each of the drawings in Fig. 7, the press-fit terminal 10 includes a plate-shaped base 11, a terminal portion 12 protruding upward from an upper portion of one end of the base 11, and a connecting portion 13 protruding downward from a lower portion of the other end of the base 11. As shown in Fig. 5(b), most of the base 11 is embedded in a terminal support portion 22b. An upper portion of the base 11 is exposed from the terminal support portion 22b. As shown in Fig. 7(a), an insertion hole 11a is formed in the base 11 to allow resin to enter during molding. As shown in Fig. 5(b), the base 11 is reinforcingly supported by a reinforcing rib 22d provided on the terminal support portion 22b.

[0047] The terminal portion 12 protrudes vertically upward (outward in the axial direction of the bobbin 2) from an upper end of the base portion 11. In other words, the terminal portion 12 extends upward from the upper flange portion 22. The terminal portion 12 has a bulging annular tip, and is pressed into contact with a through-hole 201a (see FIG. 1) of the control board 201 (see FIG. 1).

[0048] The connection portion 13 is a portion where the winding 51 of the coil 50 is connected. The thickness of the contact portion 14 of the connection portion 13, where the winding 51 comes into contact, is thinner than the thickness of the remaining portions of the connection portion 13. In other words, in the press-fit terminal 10, where thickness is easily limited by pressure welding, the connection portion 13 where the winding 51 is connected is made thinner so that the coating of the winding 51 is scraped off by contact. As shown in FIG. 7( d ), the contact portion 14 has a groove 15 with a substantially V-shaped cross section. The upper edge of the groove 15 is widened in a rounded shape. A pair of steps 16, 16 are formed at opposing portions of the inner surface of the groove 15, protruding toward the groove 15 (inward). The groove 15b is narrowed at the portions of the steps 16, 16. The width L1 (width in the left-right direction) of the groove 15b at the stepped portions 16, 16 of the groove 15 is formed to be smaller than the wire diameter D3 (wire diameter when covered with a coating) of the winding wire 51. The groove 15 is formed to become narrower toward the deepest portion 15c.

[0049] As shown in Figures 7(a) and 7(c), a protrusion 17 is formed on the side of the lower portion of the connection portion 13 for winding the winding 51 between the groove 15 and the protrusion 17. In addition, a hook-shaped portion 13b that protrudes in a hook shape toward the terminal support portion 22b (see Figure 5(b)) is formed on the lower end of the connection portion 13. The hook-shaped portion 13b is embedded (not shown) in the terminal support portion 22b (see Figure 5(b)).

[0050] The press-fit terminal 10 is obtained, for example, by press working (press punching). The thin-walled contact portion 14 is formed by further press working after the press punching process. The groove 15 is then formed by punching. Note that the contact portion 14 may be formed by press working simultaneously with the press punching process, or the contact portion 14 may be formed first by press working and then punched.

[0051] 5A, the coil 50 is formed by winding a wire 51 around the cylindrical portion 21 of the bobbin 2. The wires 51 at both ends are wound around the connecting portions 13 of the press-fit terminals 10, and the coil 50 is electrically connected to the press-fit terminals 10.

[0052] (Assembling the coil assembly into the housing) As shown in Fig. 8(a), the coil assembly 1 is assembled into the housing 202 from the rear side of the second accommodating chamber 216. In this case, the press-fit terminal 10 is faced toward the mounting space 225, and the coil assembly 1 is inserted into the mounting space 225 with the side portion 33 of the yoke 3 facing the reinforcing rib 227 of the mounting space 225. Note that the shape of the press-fit terminal 10 is simplified in Fig. 8(a).

[0053] 8(a), when the coil assembly 1 is inserted in the assembly direction, the ribs 25, 25 of the flange 23 of the bobbin 2 come into contact with the opening edges of the grooves 226 of the mounting space 225. In this state, the coil assembly 1 is pushed in the assembly direction, and the ribs 25, 25 are inserted into the grooves 226.

[0054] By this insertion, the coil assembly 1 is positioned and fixed at a predetermined position in the second receiving chamber 216 of the housing 202 .

[0055] (Assembling the Housing to the Base) After assembling each coil assembly 1 to the housing 202, adhesive is applied to the annular hatching line S11 and the linear hatching line S21 corresponding to the housing adhesion margin S1 of the circumferential groove 228 of the housing 202 on the front surface 101 of the base 100 and the electrical component adhesion margin S2 on the underside 25a of the rib 25 of each coil assembly 1. Thereafter, the housing 202 is brought closer to the front surface 101 of the base 100, and the rear end of the housing 202 is abutted against the front surface 101 of the base 100 while each coil assembly 1 is attached to the solenoid valves V1, V2 protruding from the front surface 101. As a result, the housing 202 and each coil assembly 1 are adhered to the front surface 101 of the base 100 by the adhesive interposed between the base 100 and the housing adhesion margin S1 and the electrical component adhesion margin S2. Thereafter, the fixing screws (not shown) inserted through the boss portions 221 of the holding wall 220 of the second housing chamber 216 are screwed into the threaded holes 116 (see FIG. 2 ) of the base 100. This fixes the housing 202 and each coil assembly 1 to the front surface 101 of the base 100.

[0056] The inner diameter D1 of the insertion hole 21a of the bobbin 2 is larger than the inner diameter D2 of the insertion holes 31a, 32a of the yoke 3. This makes it possible to move the yoke 3 (move in a direction perpendicular to the axial direction) relative to the bobbin 2 fixed to the housing 202 when attaching each coil assembly 1 to the solenoid valves V1, V2. Therefore, even if a slight relative positional misalignment occurs between the solenoid valves V1, V2 and each coil assembly 1, this can be absorbed and each coil assembly 1 can be attached to the solenoid valves V1, V2. In other words, it is possible to attach each coil assembly 1 while absorbing any positional misalignment with the solenoid valves V1, V2 while maintaining each press-fit terminal 10 positioned in a predetermined position.

[0057] (Assembling the Control Board to the Housing) After assembling the housing 202 to the base 100, the control board 201 is assembled through the opening of the first accommodating chamber 215, which opens on the front side of the housing 202. During assembly, each through-hole 201a of the control board 201 is aligned with the tip of the corresponding press-fit terminal 10, and the control board 201 is pressed toward the coil assembly 1. This causes the terminal portion 12 of the press-fit terminal 10 to be pressed into the through-hole 201a. During this process, the press-fit terminal 10 is held by the terminal support portion 22b of the coil assembly 1 and maintains an upright position on the terminal support portion 22b. This ensures that the terminal portion 12 of the press-fit terminal 10 is pressed into the through-hole 201a. Thereafter, the lid 203 is liquid-tightly fixed to the front end of the first accommodating chamber 215 with an adhesive or the like.

[0058] In the present embodiment described above, the coil assembly 1 can be positioned in the housing 202 by inserting the rib 25 into the groove 226 of the housing 202 and abutting against the protrusion 226a. As a result, in the present embodiment, a simple connection structure to the control board 201 using the press-fit terminal 10 can be adopted, while suitably preventing the coil assembly 1 from falling off.

[0059] Furthermore, when the rib 25 abuts against the protrusion 226a, the rib 25 is press-fit into the groove 226. This allows the coil assembly 1 to be fixed to the housing 202, and the press-fit terminal 10 to be positioned accurately at a predetermined position in the housing 202. This makes it easy to set the position of the press-fit terminal 10, and allows the press-fit terminal 10 to be easily connected to the control board 201.

[0060] Furthermore, since the connection terminals are press-fit terminals 10, electrical connection between the press-fit terminals 10 and the control board 201 can be easily achieved, improving assembly efficiency.

[0061] Furthermore, in the vehicle brake fluid pressure control device U of this embodiment, the coil assembly 1 can be fixed in a predetermined position in the housing 202, and the press-fit terminal 10 can be positioned in a predetermined position with high precision. This improves assembly ease and reduces costs.

[0062] Second Embodiment Next, a vehicle brake fluid pressure control device to which an electric component assembly according to a second embodiment is applied will be described. In this embodiment, an example will be described in which the electric component assembly is applied to a vehicle brake fluid pressure control device for a motorcycle having one brake system. Of course, the electric component assembly may also be applied to a vehicle brake fluid pressure control device for a motorcycle having two brake systems or a vehicle brake fluid pressure control device for a four-wheeled vehicle. Note that parts that are the same as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

[0063] As shown in Figures 11 and 12, the vehicle brake fluid pressure control device U1 of this embodiment has a structure in which solenoid valves V1, V2 and a motor M are housed within a housing 202A of an electronic control unit 200A, which is an electrical component assembly.

[0064] The vehicle brake fluid pressure control device U1 includes a base body 100A on which electromagnetic valves V1 and V2, a motor M, a reciprocating pump P, and the like corresponding to one brake system are assembled.

[0065] (Configuration of Base) The base 100A is a metal part formed in a substantially rectangular parallelepiped shape (see FIGS. 12 and 13 ), and has brake fluid passages (oil passages) formed therein (not shown). As shown in FIG. 13 , one of the faces of the base 100A, the front face 101A, is provided with a plurality of bottomed mounting holes 110 for mounting the solenoid valves V1 and V2, a bottomed mounting hole (not shown) for mounting the motor M, and other similar holes. In other words, the front face 101A of the base 100A collectively forms the mounting holes for the solenoid valves V1 and V2 and the motor M. The solenoid valves V1 and V2 each have a coil assembly 1 mounted thereon as an electrical component. As described below, each coil assembly 1 is electrically connected to a control board 201A (see FIG. 11 ; the same applies below) using a press-fit terminal 10A.

[0066] (Motor Configuration) The motor M is integrally fixed to the front surface 101A of the base 100A with bolts 120 (see FIG. 21). A pair of motor bus bars M11 (see FIGS. 13 and 21) are provided at the bottom of the cover of the motor M, and as shown in FIG. 12, are each connected to a bus bar terminal portion 250 provided on the inner wall (first accommodation chamber 215A) of the housing 202A. Press-fit terminals 251 for connection to the control board 201A are provided upright on the bus bar terminal portion 250.

[0067] (Configuration of Electronic Control Unit) The electronic control unit 200A includes a coil assembly 1A, a control board 201A, a housing 202A, and a cover 203. As in the first embodiment, the coil assembly 1A is fixed to the housing 202A by insertion and press-fitting. The housing 202A accommodates the coil assembly 1A and the control board 201A, as well as the solenoid valves V1, V2 and the motor M that protrude from the base 100A.

[0068] The control board 201A controls the supply of electricity to the coil assembly 1A and the motor M, and controls the opening and closing of the solenoid valves V1 and V2 and the driving of the motor M.

[0069] (Configuration of the Housing) As shown in Fig. 11, the housing 202A is a box-like body that is integrally fixed to the front surface 101A of the base body 100A, covering the solenoid valves V1, V2 and the motor M that protrude from the front surface 101A of the base body 100A. The housing 202A is integrally molded from a resin material, as in the first embodiment. The control board 201A and the coil assembly 1A are assembled to the housing 202A. The front surface of the housing 202A opposite the base body 100A side and the rear surface on the base body 100A side are both open.

[0070] As shown in FIG. 12 , the housing 202A includes a plate-shaped bottom 210A, a first peripheral wall 211A provided on the front side of the bottom 210A, and a second peripheral wall 212A provided on the rear side of the bottom 210A. The bottom 210A has a generally rectangular outer shape. The first peripheral wall 211A extends forward from the peripheral edge of the bottom 210A and has a generally square outer periphery. The first peripheral wall 211A defines a first accommodation chamber 215A (see FIG. 11 ) therein that accommodates the generally square-shaped control board 201A.

[0071] The second peripheral wall portion 212A extends rearward from the rear surface of the bottom portion 210A and has a generally heptagonal outer periphery (see FIG. 15 ). A second housing chamber 216A (see FIG. 11 ) is formed inside the second peripheral wall portion 212A to accommodate the coil assembly 1A and the motor M. The second peripheral wall portion 212A is larger in the front-to-rear direction than the first embodiment to accommodate the motor M (motor cover), which is larger in the axial direction (front-to-rear direction) than the coil assembly 1A. As shown in FIGS. 11 , 12 , and 15 , the first housing chamber 215A and the second housing chamber 216A are interconnected through an opening 256 in the bottom portion 210A. In other words, there is no partition wall between the first housing chamber 215A and the second housing chamber 216A. In this embodiment, the housing 202A also has a structure without a partition wall, so that the coil assembly 1A and the motor M are arranged from the second housing chamber 216A to the first housing chamber 215A, as shown in Fig. 11. In other words, it is possible to accommodate the motor M (motor cover) that is larger in the axial direction (front-rear direction) than the coil assembly 1A, while effectively utilizing the space in the front-rear direction to achieve a compact design.

[0072] As shown in FIG. 15 , a concave-convex retaining wall 220A is formed on the inner surface of the rear side of the second peripheral wall portion 212A. The retaining wall 220A includes bosses 221 that protrude upward and downward from the second housing chamber 216A and a retaining portion 223A that protrudes downward and to the left. Two mounting spaces 225A are formed between the adjacent bosses 221 and retaining portions 223A on the inner side of the retaining wall 220A, each capable of mounting a coil assembly 1A. The inner shape of the retaining wall 220A in each mounting space 225A is the same as that in the first embodiment and is formed to conform to the outer shape of the coil assembly 1A. A pair of grooves 226 are recessed at the opening edge of each mounting space 225A for positioning and securing the coil assembly 1A within the mounting space 225A. In each mounting space 225A, the grooves 226 are formed in opposing portions of the opposing retaining walls 220. As shown in FIG. 18(a), each groove 226 has a protrusion 226a.

[0073] As shown in FIG. 15 , each mounting space 225A is provided with a plate-shaped terminal holding portion 240. The terminal holding portion 240 is provided across the upper and lower holding walls 220 on the left side so as to be positioned in each mounting space 225A. A guide portion 241 having a generally rectangular parallelepiped outer shape is protruded from the terminal holding portion 240. Slit-shaped insertion holes 242 (see FIG. 19 ) are formed in the guide portion 241. The insertion holes 242 are provided at positions corresponding to the press-fit terminals 10A of the coil assembly 1A to be mounted in the mounting space 225A. This allows the press-fit terminals 10A to be inserted into the insertion holes 242. Press-fit terminals 252 other than those of the coil assembly 1A are insert-molded into the housing 202A at the upper and lower corners of the terminal holding portion 240, and guide portions 243 that support the press-fit terminals 252 are provided (see FIG. 12 ).

[0074] A circumferential groove 228A is formed at the rear end of the second circumferential wall portion 212A. An adhesive is applied to the circumferential groove 228A to secure the housing 202A to the front surface 101A of the base body 100A. The adhesive allows the housing 202A to be liquid-tightly sealed to the front surface 101A of the base body 100A. In FIG. 21 , the circumferential groove 228A and the rib 25a abut against the area indicated by the annular hatched line S11 on the front surface 101A of the base body 100A and the area indicated by the linear hatched line S21 located in a position corresponding to the rib 25a across the solenoid valves V1 and V2, with the adhesive applied. Note that the adhesive is applied to the annular hatched line S11 and the linear hatched line S21 in the same process.

[0075] The cover 203 is fixed to the opening on the front surface of the housing 202A, which is on the side opposite to the base 100 side.

[0076] (Configuration of Coil Assembly) The coil assembly 1A of this embodiment differs from the coil assembly 1 of the first embodiment in that it includes press-fit terminals 10A with a large overall length, as shown in FIGS. 16 and 17 . The coil assembly 1A remains unchanged in all other respects. The press-fit terminals 10A are metal components, portions of which are insert-molded into the terminal support portion 22b of the bobbin 2. As shown in FIG. 16( a), the press-fit terminals 10A are arranged at predetermined intervals in the left-right direction. An end of a winding 51 is electrically connected to each press-fit terminal 10A.

[0077] As shown in each of the drawings in Figure 17, the press-fit terminal 10A includes a plate-shaped base 11, a terminal portion 12A that protrudes upward from an upper end of the base 11, and a connecting portion 13 that protrudes downward from a lower end of the other end of the base 11. The terminal portion 12A has a longer overall length than the terminal portion 12 of the first embodiment (see Figures 7(a) to (c)). The overall length of the terminal portion 12A is set to match the dimension of the second accommodating chamber 216A of the housing 202A in the front-to-rear direction. In other words, in this embodiment, because the motor M is accommodated in the second accommodating chamber 216A, the second peripheral wall portion 212A extends further in the front-to-rear direction than in the first embodiment, and the overall length of the terminal portion 12A is set to be larger by that amount.

[0078] The terminal portion 12A protrudes vertically upward (outward in the axial direction of the bobbin 2) from an upper portion of one end of the base portion 11. A wide portion 18 that is wider than the other portions is formed in the middle portion of the terminal portion 12A. When the coil assembly 1A is assembled in the mounting space 225A of the housing 202A (see FIG. 18(b)), the wide portion 18 is held by the inner surface of an insertion hole 242 provided in a guide portion 241 of the terminal holding portion 240, as shown in FIG. 19 . In other words, the middle portion of the terminal portion 12A, which has a large overall length, is held by the housing 202A via the terminal holding portion 240.

[0079] (Assembling the Coil Assembly into the Housing) As in the first embodiment, the coil assembly 1A is assembled into the housing 202A from the rear side of the second housing chamber 216A, as shown in Fig. 18(a). In this case, the press-fit terminal 10A is faced toward the mounting space 225A, and the coil assembly 1A is inserted into the mounting space 225A with the side portion 33 of the yoke 3 facing the reinforcing rib 227 of the mounting space 225A. Note that the shape of the press-fit terminal 10A is simplified in Fig. 18(a).

[0080] As the coil assembly 1A is inserted into the mounting space 225A, the terminal portion 12A of the press-fit terminal 10A is inserted into the insertion hole 242 of the terminal holding portion 240 during the insertion process. In this case, the end portion 18A of the wide portion 18 of the press-fit terminal 10A on the terminal portion 12A side has an arc-shaped chamfer, which allows the terminal portion 12A to be smoothly inserted into the insertion hole 242. Thereafter, the coil assembly 1A is further pushed in the assembly direction, and the ribs 25, 25 are inserted and press-fit into the grooves 226.

[0081] By this press-fitting, the coil assembly 1A is positioned and fixed at a predetermined position in the second accommodating chamber 216A of the housing 202A.

[0082] (Assembling the Housing to the Base) After assembling each coil assembly 1A to the housing 202A, adhesive is applied to the annular hatching line S11 and the linear hatching line S21 corresponding to the housing adhesion margin S1 of the circumferential groove 228A of the housing 202A on the front surface 101A of the base 100A and the electrical component adhesion margin S2 on the underside 25a of the rib 25 of each coil assembly 1A. The housing 202A is then brought closer to the front surface 101A of the base 100A, and the rear end of the housing 202A is brought into contact with the front surface 101A of the base 100A while each coil assembly 1A is attached to the solenoid valves V1 and V2 protruding from the front surface 101A. This bonds the housing 202A and each coil assembly 1A to the front surface 101A of the base 100A with the adhesive applied between the base 100A and the housing adhesion margin S1 and electrical component adhesion margin S2. Thereafter, the fixing screws 120 (see FIG. 13) inserted through the boss portions 221 of the retaining wall 220A of the second housing chamber 216A are threaded into the threaded holes 116 (see FIG. 13) of the base body 100A, thereby fixing the housing 202A and each coil assembly 1A to the front surface 101A of the base body 100A.

[0083] In this embodiment as well, when mounting each coil assembly 1A to the solenoid valves V1, V2, it is possible to move the yoke 3 (in a direction perpendicular to the axial direction) relative to the bobbin 2 fixed to the housing 202A. Therefore, even if a slight relative positional misalignment occurs between the solenoid valves V1, V2 and each coil assembly 1A, this can be absorbed and each coil assembly 1A can be mounted to the solenoid valves V1, V2. In other words, it is possible to mount each coil assembly 1A by absorbing any positional misalignment with the solenoid valves V1, V2 while maintaining each press-fit terminal 10A positioned in a predetermined position.

[0084] (Assembling the Control Board to the Housing) After assembling the housing 202A to the base 100A, the control board 201A is assembled through the opening of the first housing chamber 215A on the front side of the housing 202A. During assembly, each through-hole 201a of the control board 201A is aligned with the tip of the corresponding press-fit terminal 10A, and the control board 201A is pressed toward the coil assembly 1A. This presses the terminal portion 12A of the press-fit terminal 10A into the through-hole 201a. During this process, the press-fit terminal 10A is held by the terminal support portion 22b of the coil assembly 1A and maintains an upright position on the terminal support portion 22b. The middle portion of the press-fit terminal 10A can be held in the housing 202A by the terminal holder 240. When assembling the control board 201A, as shown in FIG. 12, the press-fit terminals 251 of the bus bar terminal portion 250 of the housing 202 and the press-fit terminals 253 of the connector portion 229 can be connected at the same time.

[0085] Thereafter, adhesive is applied to groove 275 (see FIG. 12) at the front end of first storage chamber 215A, and lid 203 is fixed in a liquid-tight manner. Incidentally, an engaging portion 255 is provided at the front end, and by engaging this engaging portion 255 with a hook portion (not shown) on lid 203, alignment during assembly can be easily performed. Assembly is thus completed.

[0086] The present embodiment described above provides the same advantageous effects as those described in the first embodiment. Furthermore, the intermediate portion of the press-fit terminal 10A can be inserted and held in the terminal holding portion 240 of the housing 202A. This allows the intermediate portion to be securely held by the housing 202A, even when the press-fit terminal 10A has a large overall length. This prevents the press-fit terminal 10A from bending or tipping over, ensuring reliable connection of the coil assembly 1A to the control board 201A. Furthermore, even when the control board 201A and the coil assembly 1A are spaced apart, the coil assembly 1A can be securely connected to the control board 201A, increasing the flexibility of the layout of the coil assembly 1A within the housing 202A. Furthermore, the intermediate portion of the press-fit terminal 10A includes a wide portion 18 that is wider than the other portions. Therefore, the intermediate portion of the press-fit terminal 10A can be securely held against the inner surface of the insertion hole 242 via the wide portion 18. This further effectively prevents the press-fit terminal 10A from bending or tipping over.

[0087] Although the present invention has been described above based on the embodiments, the present invention is not limited to the configurations described in the above embodiments, and the configurations can be appropriately changed without departing from the spirit of the present invention. Furthermore, parts of the configurations of the above embodiments can be added, deleted, or replaced.

[0088] For example, although the rib 25 is shown as having a rectangular parallelepiped shape, the rib is not limited to this and various shapes can be adopted. The number of ribs provided may be one, or three or more.

[0089] In addition, the rib 25 is provided on the coil assembly 1 (1A) side and the groove 226 is provided on the housing 202 (202A) side, but the groove may be provided on the coil assembly 1 (1A) side and the rib may be provided on the housing 202 (202A) side.

[0090] Furthermore, although the press-fit terminal 10 (10A) is used as the connection terminal, other terminals that can be pressure-connected, such as snap-fit ​​terminals, can also be used as the connection terminal.

[0091] Furthermore, the press-fit terminal 10 may have a terminal portion 12 that protrudes upward from the bobbin 2, and the connection portion 13 etc. of the press-fit terminal 10 may be disposed on the side of the bobbin 2, for example.

[0092] Furthermore, the press-fit terminal 10 is shown as being insert-molded into the bobbin 2, but this is not limitative and the press-fit terminal 10 may be attached to the bobbin 2 later.

[0093] Furthermore, although the present invention has been described with reference to the coil assembly 1 (1A) as an electrical component, the present invention can also be suitably applied to other electrical components that are assembled into the housing 202 (202A).

[0094] Furthermore, although the adhesive is applied to the front surface 101 (101A) of the base 100 (100A), it may be applied to the housing 202 (202A) and the coil assembly 1 (1A, electrical component) first.

[0095] REFERENCE SIGNS LIST 1, 1A Coil assembly (electrical part) 2 Bobbin 3 Yoke 25 Rib 50 Coil 51 Winding 10, 10A Press-fit terminal 200 Electronic control unit (electrical part assembly) 201 Control board (board) 201a Through hole 202, 202A Housing V1, V2 Solenoid valve U, U1 Vehicle brake fluid pressure control device

Claims

------11 / 11 / 2562------(OCR)1. Electrical assembly, which comprises the electrical components and the housing to which the electrical components are mounted, where the electrical components and the housing are attached to one base body surface, where the electrical components include terminal connections which are press-fitted into panel through holes provided in the housing and the direction of insertion of the terminal connections into the through holes is the mounting direction to the housing. The electrical assembly includes a ridge which is protruding on a portion of the outer electrical component surface that intersects the mounting direction and the inner housing surface facing the outer surface and a groove which is recessed on another portion of the outer electrical component surface and the inner housing surface and the ridge is inserted into and the outer groove surface is provided with protrusions which meet on the ridge.

2. Electrical assembly according to claim 1, where protrusions protrude from the inner groove surface.

3. Electrical assembly according to claim 1 or 2, where the terminal connections are press-fit terminals.4.Electrical assembly according to any one of Claims 1 through 3, in which the electrical assembly is a coil assembly for driving a solenoid valve, a coil assembly which includes a reel housing which includes the coil surrounding the reel housing, a yoke attached to the reel housing and terminal connections which are electrically connected to the coil.

5. Vehicle brake fluid pressure control device which includes the electrical assembly according to Claim 4, a vehicle brake fluid pressure control device which is connected between the master cylinder and the wheel brake and controls the brake fluid pressure acting on the wheel brake, in which the solenoid valve is attached to the base body and the coil assembly is mounted on the solenoid valve.------------DEPCT631.An electrical assembly, which comprises the electrical components and the housing to which the electrical components are mounted, where the electrical components and the housing are attached to one base body surface, where the electrical components include terminal connections that are press-fitted into panel through holes provided in the housing, and the direction of insertion of the terminal connections into the through holes is the mounting direction to the housing. The electrical assembly includes a ridge which is protruding on a portion of the outer electrical component surface that intersects the mounting direction and the inner housing surface facing the outer surface, and a groove which is recessed on another portion of the outer electrical component surface and the inner housing surface, and the ridge is inserted into and the outer groove surface is provided with protrusions that meet on the ridge.

2. An electrical assembly according to claim 1, where the protrusions protrude from the outer groove surface.

3. An electrical assembly according to claim 1 or 2, where the terminal connections are press-fit terminals. 4.An electrical assembly as per any of Claims 1 through 3, where the electrical component is a coil assembly for driving a solenoid valve; a coil assembly which includes a reel housing that includes the coil surrounding the reel housing, a yoke attached to the reel housing, and terminal connections that are electrically connected to the coil.

5. A vehicle brake fluid pressure control device which includes an electrical assembly as per Claim 4, a vehicle brake fluid pressure control device that is connected between the master cylinder and the wheel brake, and the control of the brake fluid pressure acting on the wheel brake, where the solenoid valve is attached to the base body and the coil assembly is mounted on the solenoid valve.