JP2011230657A - Brake hydraulic pressure control apparatus for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake hydraulic pressure control apparatus for a vehicle capable of attaining the miniaturization of a base body.SOLUTION: The base body 10 has a housing installing through-hole 17 penetrating up to a back face 12 from one surface 11, a motor installing hole 18 formed at the back face 12, and a rotary shaft storage hole 15 for storing a rotary shaft of a motor 50. The housing installing through-hole 17 is arranged in point-symmetry in two places with the center P of the rotary shaft storage hole 15 as a symmetrical point, and the motor installing hole 18 is arranged in point-symmetry in two places in a separate position from the housing installing through-hole 17 with the center P of the rotary shaft storage hole 15 as the symmetrical point.

Description

  The present invention relates to a vehicle brake hydraulic pressure control device.

  As a conventional vehicle brake hydraulic pressure control device, there is one as shown in Patent Document 1. In the vehicle brake hydraulic pressure control device described in Patent Document 1, a housing mounting hole is formed on a surface of the housing device facing the base body, and a housing mounting through hole is formed in the base body. Then, a housing mounting screw is inserted into the housing mounting through-hole from the surface (rear) side opposite to the housing mounting surface of the base, and the tip of the mounting screw is screwed into the housing mounting hole of the housing device. The housing apparatus and the base are integrally tightened to fix the housing apparatus to the base.

  On the other hand, a motor mounting hole is formed on the back surface of the base. A motor mounting screw is inserted into a flange portion formed in the motor, and a tip of the motor is screwed into the motor mounting hole. It is fixed.

  According to such a configuration, the following operational effects can be obtained. In other words, the housing mounting screw is penetrated from the back side of the base body and screwed into the housing mounting hole to fix the housing device to the base body, while the motor mounting screw is inserted into the flange portion and screwed into the motor mounting hole. By doing so, since the motor is fixed to the base, one screw does not straddle the three members, and the tolerance between the members can be minimized.

JP 2009-6855 A

  However, since the vehicle brake hydraulic pressure control device as described above uses four housing mounting screws and two motor mounting screws, the base has housing mounting through holes corresponding to the screws. Each motor mounting hole must be formed. Therefore, the piping and layout inside the base body are restricted, and it is difficult to reduce the size of the base body. Furthermore, there is a problem that the number of parts and the number of processing steps increase.

  From such a viewpoint, an object of the present invention is to provide a vehicle brake hydraulic pressure control device that can achieve downsizing of a base.

  The invention according to claim 1 which solves such a problem includes a control housing including a receiving space for receiving a base, a solenoid valve provided on one surface of the base, and a coil assembly attached to the solenoid valve. And a brake hydraulic pressure control device for a vehicle provided on the back surface of the base body with respect to the one surface, wherein the base body is formed so as to penetrate from the one surface to the back surface, and the control housing is provided. A housing mounting through-hole into which a housing mounting screw to be fixed is inserted, a motor mounting hole to be formed in an opening on the back surface and a motor mounting screw to be fixed on the motor, and an opening in the back surface to be formed A rotation shaft receiving hole for receiving the rotation shaft of the motor, and the housing mounting through hole has a center of the rotation shaft receiving hole as a symmetric point. The vehicle is characterized in that the motor mounting holes are arranged symmetrically at two points, and the motor mounting holes are arranged symmetrically at two points at different positions from the housing mounting through-holes with respect to the center of the rotating shaft receiving hole. Brake hydraulic pressure control device.

  According to such a configuration, the housing mounting through-hole and the motor mounting hole are arranged in two points symmetrically with the center of the rotation shaft receiving hole as the center of symmetry, so that the base and The mounting location with the housing and the motor can be minimized. As a result, the number of components can be reduced, the space of the substrate can be saved and the layout can be improved, and the size of the substrate can be reduced.

  The present invention provides the housing mounting through-hole so that the position of the two housing mounting through-holes and the position of the two motor mounting holes constitute a rectangular vertex when viewed from the back side. What has the said motor attachment hole arrange | positioned is preferable.

  According to such a configuration, the housing mounting through-hole and the motor mounting hole are arranged in a balanced manner in the horizontal direction and the vertical direction when viewed from the back side, so that the vibration resistance is improved and the substrate is further improved. Miniaturization can be achieved.

  Further, according to the present invention, the base is formed with a pair of pump housing holes penetrating from the rotary shaft housing hole to the side surface of the base. The housing mounting through hole and the motor mounting hole are formed by the pump What is characterized by being arranged so as to sandwich the pump accommodation hole in a proximity position not interfering with the accommodation hole is preferable.

  According to such a configuration, the housing mounting through-hole and the motor mounting hole are arranged so as to sandwich the pump housing hole at a close position that does not interfere with the pump housing hole. The dimensions in the orthogonal direction can be minimized.

  Further, according to the present invention, the opening on the base side of the control housing is within a circle having the two positions of the housing mounting through holes at both ends of the diameter when viewed from the back side. Are preferred.

  According to such a configuration, since the width of the opening of the housing does not become excessively large with respect to the distance between the fixing positions (two housing mounting through holes) of the control housing, the two housing mounting screws can be tightened. The force can be effectively transmitted over the entire circumference of the opening of the accommodation space, and the fixing performance of the control housing to the base can be enhanced.

  In addition, it is preferable that the opening of the control housing has a square shape.

  Here, the square shape includes a rectangle in which the length of each side is equal and the corner portion is chamfered. According to such a configuration, the two housing mounting screws can be arranged in a well-balanced manner with respect to the opening of the accommodation space, so that the performance of fixing the control housing to the base body can be further enhanced.

  Further, according to the present invention, a flange portion is formed on the peripheral wall portion defining the accommodating space of the control housing so as to protrude outward, and the housing mounting screw is screwed into the flange portion. It is preferable that a fixing hole and a reinforcing rib extending from the peripheral portion of the housing fixing hole to the outer peripheral edge portion of the peripheral wall portion are provided.

  According to such a configuration, the tightening force of the two housing mounting screws can be effectively transmitted to the outer peripheral edge portion of the peripheral wall portion via the reinforcing rib, so that the performance of fixing the control housing to the base body is further improved. It can be further enhanced.

  Further, the present invention is characterized in that the rotational axis center position of the motor and the center position of the opening on the base side of the control housing overlap with each other when viewed from the back side. Is preferred.

  According to such a configuration, since the weight balance between the motor and the control housing becomes good, the motor and the control housing are fixed to the base in a stable state, and the fixing performance of the motor and the control housing to the base can be further enhanced. .

  Further, according to the present invention, the peripheral wall portion defining the accommodating space of the control housing is formed in a rectangular frame shape, and flange portions protrude outwardly from a pair of opposite sides of the four sides of the peripheral wall portion. The flange portion is provided with a housing fixing hole into which the housing mounting screw is screwed, and a seal member is interposed between the one surface of the base and the peripheral wall portion, The seal member includes a rectangular frame-shaped peripheral portion along the peripheral wall portion, and a plurality of strip-shaped tongue portions protruding inward from each side of the peripheral portion, and the tongue portion includes the housing fixing hole. A fixing portion proximity tongue provided on the pair of sides of the peripheral wall portion adjacent to the base wall, and the coil assembly only at a position where the fixing portion proximity tongue is provided. It is characterized by being sandwiched between Shall is preferable.

  According to such a configuration, the reaction force (restoring force) is generated in the fixed portion adjacent tongue portion sandwiched between the coil assembly and the base, but this portion is tightened by the housing mounting screw, so that the control is performed. The housing and the coil assembly are not separated from the base body, and the sealing performance of this portion is not deteriorated.

  Furthermore, the present invention is preferably characterized in that the peripheral wall portion and the peripheral edge portion of the seal member are formed in a square frame shape.

  According to such a configuration, the installation direction of the seal member can be freely assembled in any direction in units of 90 degrees, and since there is no need to regulate the installation direction of the seal member, the assembly workability can be improved. it can.

  In the present invention, the tongue portion further includes a fixed portion remote tongue portion provided on the other side extending in a direction orthogonal to the fixed portion proximity tongue portion, and the coil assembly includes the coil assembly, What is characterized by being spaced apart from a fixed part remote tongue part is preferable.

  According to such a configuration, tongue portions (fixed portion remote tongue portions) other than the fixed portion proximal tongue portion firmly tightened by the housing mounting screw are not sandwiched between the coil assembly and the base body, and thus are larger than necessary. There will be no reaction force. Therefore, the control housing is not deformed in the portion that is not tightened, and the deterioration of the sealing performance can be prevented.

  In the invention, it is preferable that the fixed portion proximity tongue portion or the fixed portion remote tongue portion is formed in the same shape on each side of the peripheral edge portion.

  According to such a configuration, since the sides of the peripheral wall portion have the same shape, the installation direction of the seal member can be freely assembled in any direction in units of 90 degrees. As a result, there is no need to regulate the installation direction of the seal member, so that the assembly workability can be improved.

  The vehicular brake hydraulic pressure control device according to the present invention exhibits an excellent effect that the size of the base can be reduced.

1 is an exploded perspective view showing a vehicle brake hydraulic pressure control device according to an embodiment of the present invention. 1 is a perspective view showing a vehicle brake hydraulic pressure control apparatus according to an embodiment of the present invention. It is the rear view which showed the brake fluid pressure control apparatus for vehicles which concerns on embodiment of this invention. It is the top view showing the brake fluid pressure control device for vehicles concerning the embodiment of the present invention. FIG. 4 is a sectional view taken along line AA in FIG. 3. (A) is the BB sectional drawing of FIG. 3, (b) is the D section enlarged view of (a). (A) is CC sectional view taken on the line of FIG. 4, (b) is the E section enlarged view of (a). (A) is the rear view which showed the control housing, (b) is the rear view which showed the state which attached the sealing member to the control housing. (A) is the rear view which showed the sealing member, (b) is sectional drawing which showed the sealing member, (c) is the perspective view which showed the sealing member.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. First, the overall configuration of the vehicle brake hydraulic pressure control device according to the present embodiment will be described.

  As shown in FIGS. 1 and 2, the vehicle brake hydraulic pressure control device 1 according to this embodiment includes a base body 10, an electromagnetic valve 20 disposed on one surface 11 of the base body 10, and one surface 11 of the base body 10. And a motor 50 (pump drive motor) disposed on a back surface (one surface on the other side) 12 with respect to one surface 11 of the base body 10. A seal member 60 (see FIG. 1) is interposed between the one surface 11 of the base 10 and the control housing 30.

  As shown in FIG. 1, the base body 10 is a metal member formed in a substantially rectangular parallelepiped shape, and has a brake fluid flow path, a motor rotation shaft accommodation hole 14, a pump accommodation hole 15 and the like formed therein. The rotation shaft accommodation hole 14 is a hole with a bottom having a circular cross section that opens in the back surface 12 of the base body 10 and accommodates a rotation shaft (not shown) of the motor 50. The pump accommodation holes 15 are holes that penetrate from the rotation shaft accommodation hole 14 to both side surfaces 13 of the base body 10, and are provided as a pair on both sides of the rotation shaft accommodation hole 14. The pump accommodation hole 15 extends in a direction perpendicular to the side surface 13 (normal direction). Each pump accommodation hole 15 is mutually formed on the same axis. An attachment hole 16 (see FIGS. 6 and 7) for attaching the electromagnetic valve 20 is formed in one surface 11 of the base body 10 so as to communicate with the brake fluid flow path.

  As shown in FIGS. 1 and 5, a housing mounting through hole 17 and a motor mounting hole 18 are formed in the base 10. The housing mounting through-hole 17 is a hole through which a housing mounting screw 80 for fixing the control housing 30 to the base body 10 is passed. The housing mounting through-hole 17 is formed so as to penetrate the base 10 so as to open on both the first surface 11 and the rear surface 12 of the base 10, and is perpendicular to the first surface 11 (normal direction of the first surface 11). It is extended.

  The motor attachment hole 18 is formed in the back surface 12 so as to be opened, and is a bottomed hole into which a motor attachment screw 81 for fixing the motor 50 is inserted. A female screw is formed in the motor mounting hole 18, and the motor mounting screw 81 is screwed together. The motor mounting screw 81 passes through the motor mounting through hole 52 formed in the flange portion 51 of the motor 50 and is screwed into the motor mounting hole 18.

  As shown in FIG. 3, the housing mounting through-holes 17 are point-symmetrically arranged at two locations with the center P of the rotation shaft accommodating hole 14 as a symmetric point when the base body 10 is viewed from the back side. The motor mounting holes 18 are point-symmetrically arranged at two positions different from the housing mounting through-holes 17 with the center P of the rotation shaft accommodating hole 14 as a symmetric point when the base 10 is viewed from the back side. . Further, the housing is arranged such that the positions of the two housing mounting through-holes 17 and 17 and the positions of the two motor mounting holes 18 and 18 form a rectangular vertex (rectangular in this embodiment) when viewed from the rear side. Mounting through holes 17 and 17 and motor mounting holes 18 and 18 are arranged. The center of gravity of the vehicle brake hydraulic pressure control device 1 after assembly is located inside a rectangle formed by the positions of the two housing mounting through holes 17 and 17 and the positions of the two motor mounting holes 18 and 18. It is configured as follows.

  The housing mounting through-hole 17 and the motor mounting hole 18 are arranged so as to sandwich the pump housing hole 15 at a close position that does not interfere with the pump housing hole 15. In other words, one of the housing mounting through hole 17 and the motor mounting hole 18 is disposed immediately above each pump housing hole 15, and the housing mounting through hole 17 and the motor mounting hole 18 are disposed directly below the pump housing hole 15. The other of is arranged. The vertical direction in the present embodiment is the vertical direction in FIG. 1 and may be different from the vertical direction when the vehicle brake fluid pressure control device 1 is attached to the vehicle body. The pump housing hole 15 is disposed at a position sandwiched between the housing mounting through hole 17 and the motor mounting hole 18 from above and below.

  Specifically, a motor mounting hole 18 is disposed immediately above the pump housing hole 15 located on the left side when viewed from the back side, and a housing mounting through-hole 17 is formed immediately below the same pump housing hole 15. ing. On the other hand, a housing mounting through hole 17 is disposed immediately above the pump housing hole 15 located on the right side when viewed from the back side, and a motor mounting hole 18 is formed directly below the same pump housing hole 15. In the present invention, “directly above the pump housing hole 15” means between the pump housing hole 15 and the housing mounting through-hole 17 or the motor mounting hole 18 at a portion that does not interfere with the pump housing hole 15 above the pump housing hole 15. The position where the wall thickness can be secured is shown, and “directly below the pump housing hole 15” is a portion below the pump housing hole 15 and does not interfere with the pump housing hole 15. The position where the wall thickness between the holes 18 can be secured is shown.

  In other words, the straight line connecting the housing mounting through holes 17, 17 and the straight line connecting the motor mounting holes 18, 18 intersect each other with the center P of the rotating shaft accommodation hole 14 as an intersection. Each straight line has the same length and intersects at the center position, thereby forming a rectangular diagonal line. Further, in the vertical direction of FIG. 3, the housing mounting through hole 17 and the motor mounting hole 18 positioned on the upper side are positioned at the same height, and the housing mounting through hole 17 and the motor mounting hole 18 positioned on the lower side are aligned with each other. Are located at the same height.

  Further, the housing mounting through hole 17 and the motor mounting hole 18 located above the pump housing hole 15 are formed between the inlet ports 24 and 24 formed on the left and right upper portions of the back surface 12 and the pump housing hole 15. ing. The upper housing mounting through hole 17 (or motor mounting hole 18) and the lower motor mounting hole 18 (or housing mounting through hole 17) are symmetrical with respect to the central axis of the pump housing hole 15 as a symmetric line. Is arranged. That is, the upper housing mounting through-hole 17 and the lower motor mounting hole 18 have the same distance from the central axis of the pump housing hole 15. The housing mounting through hole 17 and the motor mounting hole 18 are both formed at positions closer to the outside (side surface 13 of the base body 10) than the center position of the inlet port 24.

  As shown in FIGS. 1 and 4, the control housing 30 includes various electrical components and a housing main body 31, and is configured by mounting the electrical components on the housing main body 31. The electrical components include a coil assembly 32 (see FIG. 1) attached to the electromagnetic valve 20 attached to the base 10 and a control board 37 constituting a control unit that controls the operation of the electromagnetic valve 20.

  As shown in FIGS. 6 and 7, the coil assembly 32 includes a solenoid coil 34 and a magnetic path frame 35. The solenoid coil 34 is formed by winding an electric wire around a bobbin 33 surrounding a protruding portion of the electromagnetic valve 20 from the base body 10. At both ends in the axial direction of the bobbin 33, flanges 33a and 33b are formed, respectively. The magnetic path frame 35 is attached to the bobbin 33 so as to sandwich both axial ends of the bobbin 33.

  As shown in FIGS. 6 to 8, the housing main body 31 is made of resin, and accommodates the electromagnetic valve 20 provided on the one surface 11 of the base body 10 and the coil assembly 32 inside thereof. A space 36 is provided. The accommodation space 36 is formed so as to face the one surface 11 of the base 10. As shown in FIGS. 6 and 7, the housing main body 31 is attached with a control board 37 that divides the internal space into two. The internal space is partitioned by the control board 37 into a first housing portion 31a located on the base side and a second housing portion 31b located on the side opposite to the base body (opposite side of the base body 10). A lid 39 for closing the second housing portion 31 b is provided at the opening of the second housing portion 31 b of the housing body 31. The accommodation space 36 is configured by the first accommodation portion 31a, and is partitioned by a control substrate 37 and a peripheral wall portion 38 extending to the base body side. The peripheral wall portion 38 constitutes a part of the housing main body portion 31. The control board 37 is fixed to the housing main body 31 via a plurality of screws 37a (see FIGS. 6 and 7). Further, the control board 37 is electrically connected to the terminal 29 of the housing body 31 by wire bonding 37b (see FIG. 6).

  As shown to (a) of FIG. 8, the surrounding wall part 38 is formed in the rectangular (square in this embodiment) frame shape. In addition, the “rectangle” or “square” in the present invention includes a case where the protruding corner is chamfered in a curved shape and a shape in which the oblique corner is chamfered. A pair of flange portions 40 are formed to protrude outwardly on a pair of opposite sides (in the left-right direction in FIG. 8) of the four sides of the peripheral wall portion 38. The flange portion 40 is provided with a housing fixing hole 41 into which the housing mounting screw 80 is screwed and a reinforcing rib 44.

  As shown in FIG. 5, the housing fixing hole 41 is formed by a bush 43 embedded in the housing main body 31 with an insert mold. The bush 43 is a cylindrical metal member. A female screw is formed on the inner peripheral portion of the bush 43, and a housing fixing hole 41 is formed on the inner peripheral portion. The housing fixing hole 41 is arranged so as to be coaxial with the housing mounting through-hole 17 in a state where the control housing 30 is mounted on the base body 10. One end of the bush 43 on the base side is open on the surface of the housing main body 31 that faces the base 10 (opening end face of the peripheral wall 38), and the other end is covered and blocked by the resin of the housing main body 31. ing.

  As shown in FIG. 8A, the reinforcing rib 44 is a resin that extends from the peripheral portion of the housing fixing hole 41 to the outer peripheral edge portion of the peripheral wall portion 38 (in this embodiment, the protruding corner portion of the peripheral wall portion 38). It is composed of. Two reinforcing ribs 44 are formed in each of the two housing fixing holes 41. The reinforcing rib 44 extends linearly and extends from the peripheral portion of the housing fixing hole 41 toward the protruding corner portion of the peripheral wall portion 38. The reinforcing rib 44 extends toward the closest protruding corner portion and the second closest protruding corner portion among the four protruding corner portions. The space between the reinforcing rib 44 of the flange portion 40 and the peripheral wall portion 38 is thinned for weight reduction.

  As the peripheral wall 38 is formed in a square frame shape, the opening 36a on the base side of the control housing 30 (shown by hatching in FIG. 8A) also has a square shape. ing. The opening 36a is substantially the same as the projected shape of the inner peripheral surface of the peripheral wall 38, and is a substantial opening range of the accommodation space that does not include a groove 45 described later. The opening 36a is a circle having a diameter at both axial center positions of the two housing fixing holes 41 (center positions of the housing mounting through holes 17 and 17 (see FIG. 3)) when viewed from the back side of the base body. It is formed in a size that fits within the range. Thus, the width of the opening 36a is not excessively increased with respect to the distance between the fixed locations (housing mounting through holes 17 and 17) of the control housing 30.

  When viewed from the back side, the control housing 30 is arranged and fixed so that the center position of the opening 36a overlaps the rotational axis position of the motor 50 (see FIGS. 6 and 7).

  As shown in FIG. 6, FIG. 7, and FIG. 8A, a concave groove 45 for fixing the seal member 60 is formed at the opening side end of the peripheral wall portion 38. The concave groove 45 is formed in a square shape so as to surround the opening. A part of the seal member 60 is accommodated in the concave groove 45.

  The seal member 60 is a member for preventing moisture from entering the control housing 30. As shown in FIG. 9, the seal member 60 includes a rectangular frame-shaped peripheral portion 61 along the peripheral wall portion 38, and a plurality of strip-shaped tongue portions 62 protruding inward from each side of the peripheral portion 61. The peripheral portion 61 is formed in a square frame shape having a side length equivalent to the concave groove 45. The peripheral edge portion 61 is accommodated in the recessed groove 45 in a compressed state. When the control housing 30 is fixed to the base body 10, the peripheral edge portion 61 is compressed by the concave groove 45 and the one surface 11 of the base body 10, and the seal member 60 is fixed in a compressed state.

  The tongue portion 62 is formed on each side of the peripheral edge portion 61. The tongue portions 62 and 62 provided on adjacent sides of the peripheral edge portion 61 are continuously formed. The tongue portion 62 is formed to extend inward from the lower end portion of the peripheral edge portion 61, and the seal member 60 has an L-shaped cross section. The tongue 62 is formed in a belt shape along the longitudinal direction of the peripheral edge 61. The tongue 62 is formed so as to become thinner toward the tip. A groove 63 into which the wall portion of the concave groove 45 enters is formed at the base end portion of the tongue portion 62 to enhance the sealing performance.

  As shown in FIG. 8B, the tongue portion 62 is provided on a pair of sides of the peripheral wall portion 38 adjacent to the housing fixing hole 41 (hereinafter sometimes referred to as “fixed portion adjacent side 38 a”). Tongue portion 62 (hereinafter also referred to as “fixed portion proximity tongue portion 62a”) and a second tongue portion 62 (hereinafter referred to as the other side portion extending in a direction orthogonal to the first tongue portion 62). It may be referred to as “fixed portion remote tongue portion 62b”.

  Of the tongue portions 62 formed on the four sides of the peripheral edge portion 61, the first tongue portion 62 (fixed portion proximity tongue portion 62 a) is sandwiched between the base body 10 and the coil assembly 32 provided in the control housing 30. It is. Specifically, the first tongue portion 62 is sandwiched between the surface of the one surface 11 of the base 10 and the flange portion 33 b of the bobbin 33 of the coil assembly 32. On the other hand, the second tongue portion 62 (fixed portion remote tongue portion 62 b) does not contact the coil assembly 32. In the present embodiment, the four coil assemblies 32 are arranged in two rows. However, the coil assemblies 32 are arranged so as to come into contact with the fixed portion proximity tongue portion 62a, and It arrange | positions so that it may become non-contact with the other tongue part extended in the direction orthogonal to a longitudinal direction. That is, the coil assembly 32 is disposed in the vicinity of the fixed portion proximity tongue portion 62a, and is disposed at a distance from the fixed portion remote tongue portion 62b.

  Each tongue 62 is formed in the same shape on each side of the square of the peripheral edge 61. As a result, the seal member 60 has a square shape with the same shape on each side. Therefore, each tongue portion 62 can be either the fixed portion proximity tongue portion 62a or the fixed portion remote tongue portion 62b.

  According to the vehicle brake hydraulic pressure control device 1 configured as described above, the housing mounting through-hole 17 and the motor mounting hole 18 are arranged point-symmetrically at two locations with the center of the rotation shaft accommodating hole 14 as the symmetry point. Therefore, it is arranged with a good balance in weight. As a result, the tightening force of the housing mounting screw 80 can be transmitted to the peripheral wall portion 38 of the control housing 30 with good balance, and the tightening force of the motor mounting screw 81 can be transmitted to the flange portion 51 of the motor 50 with good balance. Therefore, the attachment location of the base | substrate 10, the control housing 30, and the motor 50 can be minimized. Thereby, the number of parts of the housing mounting screw 80 and the motor mounting screw 81 can be reduced. Further, since the installation space of the housing mounting through-hole 17 and the motor mounting hole 18 in the base 10 can be reduced, the space of the base 10 can be saved and the layout of other channels and the like can be improved. Miniaturization can be achieved, and further downsizing of the vehicle brake hydraulic pressure control device 1 can be achieved.

  Further, in the present embodiment, the positions of the two housing mounting through holes 17 and the positions of the two motor mounting holes 18 form a rectangular apex, so that it is also heavy in the left-right direction and the vertical direction. Good balance is maintained. As a result, the vibration resistance can be improved and the substrate 10 can be further downsized.

  Further, since the housing mounting through hole 17 and the motor mounting hole 18 are arranged so as to sandwich the pump housing hole 15 from above and below at a position close to the pump housing hole 15, the space in the vertical direction of the base 10 is wasted. Therefore, the vertical dimension of the substrate 10 can be minimized.

  Further, in the present embodiment, the opening 36a of the accommodation space 36 of the control housing 30 is configured so as to be within a circle having the positions of the two housing mounting through holes 17 at both ends of the diameter. The entire opening 36a is not excessively separated from the fixed part of the control housing 30. Therefore, the tightening force of the two housing mounting screws 81 can be effectively transmitted over the entire circumference of the opening 36 a of the accommodation space 36. Therefore, the performance of fixing the control housing 30 to the base body 10 can be enhanced, and the sealing performance by the seal member 60 can be enhanced.

  Furthermore, since the opening 36a has a square shape, the weight balance of the two housing mounting screws 81 with respect to the opening 36a is further improved. As a result, the performance of fixing the control housing 30 to the base body 10 can be further enhanced.

  Further, the tightening force of the two housing mounting screws 80 can be effectively transmitted to the outer peripheral edge portion of the peripheral wall portion 38 through the reinforcing rib 44 on the outer side of the peripheral wall portion 38 of the control housing 30. Accordingly, the control housing 30 can be pressed against the base body 10 over the entire circumference of the peripheral wall portion 38, and the fixing performance can be further enhanced and the sealing performance by the seal member 60 can be enhanced.

  Further, in this embodiment, since the rotational axis position of the motor 50 and the center position of the opening 36a of the control housing 30 are configured to overlap, both the motor 50 and the control housing 30 are fixed in a balanced manner at the same time. can do.

  On the other hand, in the present embodiment, the coil assembly 32 is disposed so as to contact the fixed portion proximity tongue portion 62a (first tongue portion 62), and the fixed portion remote tongue portion 62b (second tongue portion 62). Are arranged in a non-contact manner, the vibration of the coil assembly 32 is efficiently absorbed by the tongue 62 in the vicinity of the portion firmly fixed by the housing mounting screw 80. Further, a reaction force (restoring force) is generated in the tongue portion 62 (fixed portion proximity tongue portion 62 a) sandwiched between the coil assembly 32 and the base body 10, but this portion is firmly tightened by the housing mounting screw 80. Therefore, the control housing 30 and the coil assembly 32 are not separated from the base body 10. Therefore, the sealing performance of this part does not deteriorate. Further, the vibration of the coil assembly 32 is not easily transmitted to the fixed portion remote tongue 62b that is relatively far from the portion firmly fixed by the housing mounting screw 80. Further, since the fixed portion remote tongue portion 62b is not sandwiched between the coil assembly 32 and the base body 10, the reaction force greater than necessary on the tongue portion 62 (in a direction to move the coil assembly 32 away from the base body 10). Force) does not occur. Therefore, the control housing 30 is not deformed even in the fixed portion remote tongue portion 62b that is not tightened by the housing mounting screw 80, and the deterioration of the sealing performance can be prevented.

  Further, since the seal member 60 has the same shape even when rotated by 90 degrees, the installation direction of the seal member 60 can be freely assembled in any direction in units of 90 degrees. As a result, there is no need to regulate the installation direction of the seal member 60, and the assembling work becomes easy.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, In the range which does not deviate from the meaning of this invention, a design change is possible suitably. For example, in the above-described embodiment, the peripheral wall portion 38 is formed in a square frame shape. However, the shape is not limited to this, and may be a rectangle or other shape as long as there is little variation in the distance dimension from the center to the peripheral portion. May be. For example, the peripheral wall portion 38 may have a circular frame shape or an elliptical frame shape. In this case, the reinforcing rib 44 is in contact with the outer peripheral portion of the peripheral wall portion 38 as a tangent from the peripheral portion of the housing fixing hole 41. It is preferably formed so as to extend.

  Moreover, in the said embodiment, although the tongue part 62 of the sealing member 60 is provided with the fixing | fixed part proximity tongue part 62a and the fixing | fixed part remote tongue part 62b, it is not limited to this, Fixed It may be configured to include only the part proximity tongue part 62a (no fixed part remote tongue part 62b).

  Furthermore, in the said embodiment, although the position of the two housing attachment through-holes 17 and the position of the two motor attachment holes 18 are comprised so that a rectangular vertex may be comprised, it is not limited to a rectangle. For example, it may be a parallelogram.

DESCRIPTION OF SYMBOLS 1 Vehicle brake hydraulic pressure control apparatus 10 Base body 11 One surface 12 Back surface 14 Rotating shaft accommodation hole 15 Pump accommodation hole 17 Housing attachment through-hole 18 Motor attachment hole 20 Solenoid valve 30 Control housing 32 Coil assembly (electric part)
36 Housing Space 36a Opening 38 Peripheral Wall 40 Flange 41 Housing Fixing Hole 50 Motor 60 Sealing Member 61 Peripheral 62 Tongue 62a Fixing Proximity Tongue 62b Fixing Remote Tongue 80 Housing Mounting Screw 81 Motor Mounting Screw

Claims (11)

A control housing including a base, a solenoid valve provided on one surface of the base and a coil assembly attached to the solenoid valve, and a pump drive provided on the back surface of the base with respect to the one surface In a vehicle brake hydraulic pressure control device equipped with a motor for
The base body has a housing mounting through-hole through which a housing mounting screw is formed which penetrates from one surface to the back surface and fixes the control housing, and a motor which is formed in the back surface and which fixes the motor. A motor mounting hole into which a mounting screw is inserted, and a rotary shaft housing hole that is formed in the back surface and that receives the rotational shaft of the motor;
The housing mounting through-holes are point-symmetrically arranged at two locations with the center of the rotation shaft accommodating hole as a symmetric point,
The vehicular brake hydraulic pressure control device, wherein the motor mounting hole is arranged in two points symmetrically at a position different from the housing mounting through-hole with the center of the rotating shaft housing hole as a symmetric point. When viewed from the back side, the housing mounting through hole and the motor mounting hole are arranged such that the position of the two housing mounting through holes and the position of the two motor mounting holes form a rectangular vertex. The vehicular brake hydraulic pressure control device according to claim 1, wherein the vehicular brake hydraulic pressure control device is arranged. The base is formed with a pair of pump housing holes penetrating from the rotating shaft housing hole to the side surface of the base.
3. The housing mounting through hole and the motor mounting hole are arranged so as to sandwich the pump housing hole at a position close to the pump housing hole that does not interfere with the pump housing hole. The brake fluid pressure control apparatus for vehicles as described. 2. The opening on the base side of the control housing as seen from the rear side is within a circle having two housing mounting through holes at both ends of the diameter. The brake fluid pressure control device for a vehicle according to any one of claims 3 to 4. The vehicular brake hydraulic pressure control device according to claim 4, wherein the opening of the control housing has a square shape. A flange portion is formed on the peripheral wall portion defining the housing space of the control housing so as to protrude outwardly.
The flange portion is provided with a housing fixing hole into which the housing mounting screw is screwed, and a reinforcing rib extending from the peripheral portion of the housing fixing hole to the outer peripheral edge portion of the peripheral wall portion. The vehicular brake hydraulic pressure control device according to any one of claims 1 to 5. The rotation axis center position of the motor and the center position of the opening on the base side of the control housing overlap each other when viewed from the back side. The brake fluid pressure control device for a vehicle according to any one of the above. A peripheral wall portion defining the accommodation space of the control housing is formed in a rectangular frame shape, and a flange portion is formed to protrude outward from each of a pair of opposite sides of the four sides of the peripheral wall portion, and the flange The part is provided with a housing fixing hole into which the housing mounting screw is screwed.
A sealing member is interposed between the one surface of the base body and the peripheral wall portion, and the sealing member protrudes inward from each side of the peripheral edge portion and a rectangular frame-shaped peripheral edge portion along the peripheral wall portion. With a plurality of belt-like tongues,
The tongue portion includes a fixing portion proximity tongue portion provided on the pair of sides of the peripheral wall portion adjacent to the housing fixing hole, and the tongue portion is provided only at a position where the fixing portion proximity tongue portion is provided. The vehicle brake fluid pressure control device according to any one of claims 1 to 7, wherein the vehicle is sandwiched between the base body and the coil assembly. The vehicular brake hydraulic pressure control device according to claim 8, wherein the peripheral wall portion and the peripheral edge portion of the seal member are formed in a square frame shape. The tongue further includes a fixed portion remote tongue provided on the other side extending in a direction orthogonal to the fixed portion proximity tongue,
The vehicular brake hydraulic pressure control device according to claim 8 or 9, wherein the coil assembly is disposed apart from the fixed portion remote tongue portion. The vehicular brake hydraulic pressure control device according to claim 10, wherein the fixed portion proximity tongue portion or the fixed portion remote tongue portion is formed in the same shape on each side of the peripheral portion.

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