JP3520822B2 - Large current circuit integrated hydraulic controller for motor drive - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor drive large current circuit integrated hydraulic control device in which a hydraulic unit and a motor drive large current circuit unit are integrally mounted.

[0002]

2. Description of the Related Art Conventionally, in a vehicle, for example, to perform anti-skid control (ABS control), a hydraulic unit for adjusting wheel cylinder pressure, an electronic control unit (ECU) for controlling the hydraulic unit, and hydraulic pressure are adjusted. For example, a motor driving large current circuit for driving a pump motor, which is an actuator for driving the motor, is mounted.

In recent years, for the purpose of simplifying the manufacturing process and downsizing the device, the device has been modularized, and the above-described ABS-controlled hydraulic unit and electronic control device should be integrated. Modularization is also being considered.

[0004]

As an example of this modularization, a solenoid for driving a solenoid valve, an electronic board, etc. are provided on a housing (hydraulic unit housing) made of, for example, an aluminum alloy which houses a hydraulic unit such as a hydraulic circuit. A method of attaching a resin housing (ECU housing) accommodating the above is conceivable.

However, if the ECU has a large current circuit,
(1) Other signals may be affected by noise, (2) a large current harness for supplying electric power from the ECU to a solenoid or the like is required, (3) the ECU becomes large, and (4) these Therefore, there is a possibility that the yield of the substrate may be reduced. Therefore, it can be said that it is better to modularize the hydraulic unit and the motor-driving large-current circuit and separate the ECU.

Although the above disadvantages can be avoided by simply modularizing the hydraulic unit and the motor driving large current circuit, there is room for improvement in terms of size reduction, which is an important merit of modularization. For example, water generated due to intrusion or dew condensation in the housing of the high-current circuit for driving a motor causes failure, rust, corrosion, and the like, and it is necessary to quickly drain this. However, in the case of water, it has the property of clinging to the discharge passage due to surface tension,
It is necessary to increase the dimensions of the discharge passage and the like, which causes a problem of increasing the size of the housing.

SUMMARY OF THE INVENTION It is an object of the present invention to solve this problem and to downsize a motor drive large current circuit integrated hydraulic control device in which a hydraulic unit and a motor drive large current circuit unit are integrally mounted. I am trying.

[0008]

According to a first aspect of the present invention, there is provided a motor drive large-current circuit-integrated hydraulic control device for accommodating a vehicle control hydraulic pressure. A motor drive large current circuit integrated hydraulic control device in which the hydraulic unit and the motor drive large current circuit unit containing the motor drive large current circuit and the motor drive electronic board are integrally assembled, An operating unit having an electric actuator for operating the hydraulic mechanism and / or a sensor for detecting a state of the hydraulic mechanism arranged in a housing of the motor-driving high-current circuit unit; and an electronic board unit having the electronic board arranged therein. And a part of the hydraulic unit facing the housing of the motor-driving large-current circuit unit, a part of which is opened to the operating part. A passage groove that directly or indirectly communicates with a ventilation opening provided in a lower surface portion when the motor drive large-current circuit integrated hydraulic control device is in use, that is, when mounted on a vehicle body, is provided. To do.

That is, since the operating portion communicates with the ventilation opening through the passage groove, most of the passage for discharging water from the operating portion can be used as the passage groove. Therefore, the housing of the motor-driving high-current circuit unit may have a structure in which only a part of the passage for it is provided or not provided at all. Therefore, it is possible to avoid an increase in the size of the housing of the high-current circuit unit for driving the motor.

Since the surface portion of the hydraulic unit in which the passage groove is provided has a portion that has not been used conventionally, the passage groove can be provided by effectively utilizing such a portion. Therefore, the hydraulic unit does not become large. An example of such an unused portion is a portion between the reservoir of the hydraulic unit and the housing of the motor driving large current circuit unit.

Further, since the passage groove can be provided at the time of casting the housing of the hydraulic unit (usually made of an aluminum alloy), cutting work such as drilling is not required to provide the passage groove. In other words, in order to provide the passage groove, it is only necessary to shape the mold accordingly.
No special effort is required, so there is no risk of cost increase. Moreover, by providing the passage groove, the amount of metal (aluminum alloy) used for each housing of the hydraulic unit can be reduced, which leads to cost reduction in terms of material cost and resource saving. .

Although both the passage groove and the ventilation opening may be provided in the hydraulic unit, there are problems in machining the housing of the hydraulic unit, layout problems in this housing,
It may be better to provide the ventilation opening in the housing of the motor-driving large-current circuit unit because of problems with the overall layout of the motor-driving large-current circuit-integrated hydraulic control device. In that case, the configuration described in claim 2 may be adopted.

According to a second aspect of the present invention, there is provided a motor drive large current circuit integrated hydraulic control device according to the first aspect, wherein the motor drive large current circuit integrated hydraulic control device includes a housing of the motor driving large current circuit unit. The ventilation opening is provided in a portion which is a lower surface in a use state of the motor driving large current circuit integrated hydraulic control device, and the ventilation opening and the passage groove are provided in a housing of the motor driving large current circuit unit. It is characterized in that a communication chamber for communicating is provided.

According to this structure, only a small space required for the ventilation opening and the communication chamber is required for the housing of the motor driving large current circuit unit, so that the size increase can be avoided. Furthermore, if the configuration of claim 2 is adopted, the ventilation path has a labyrinth structure, and the effect of preventing water intrusion becomes large.

According to a third aspect of the present invention, there is provided a motor drive large-current circuit integrated hydraulic control device according to the second aspect, wherein the communication chamber has the motor drive large current. The electronic board portion is provided along a wall surface that is a lower surface in a usage state of the circuit integrated hydraulic control device, and is adjacent to an upper side of the communication chamber in a usage state of the motor driving large current circuit integrated hydraulic control device. It is characterized by arranging.

If the operating portion and the ventilation opening are to be communicated with each other in the housing of the motor driving large current circuit unit, for example, the hydraulic unit rather than the electronic board portion in the housing of the motor driving large current circuit unit will be used. A room or the like that connects the operating part and the ventilation opening must be provided in the side part.

However, according to the third aspect of the invention, since the communication chamber is provided along the wall surface which is the lower surface when the motor drive large-current circuit integrated hydraulic control device is in use.
It is possible to arrange the electronic board portion in a portion adjacent to the upper side, and it is possible to avoid an increase in the size of the housing of the motor driving large current circuit unit.

A large-current circuit integrated hydraulic control device for driving a motor according to a fourth aspect is the hydraulic control device integrated with a large-current circuit for driving a motor according to any one of the first to third aspects, wherein the electronic substrate is the motor. It is characterized in that the driving large current circuit-integrated hydraulic control device is housed in the electronic board portion while being inclined with respect to the vertical direction or orthogonal to the vertical direction.

According to another aspect of the present invention, there is provided a motor-driven large-current circuit integrated hydraulic control device in which the electronic board is inclined with respect to the vertical direction of the motor-driven large-current circuit integrated hydraulic control device or orthogonal to the vertical direction. Since the electronic boards are housed in the electronic board section, the installation area of the electronic boards can be reduced as compared with the case where the electronic boards are arranged parallel to the vertical direction.
Therefore, it is possible to downsize the large-current circuit-integrated hydraulic control device for driving the motor. In particular, the vertical dimension can be reduced.

In particular, according to the third aspect of the present invention, the depth of the electronic board portion can be set to the full thickness of the housing of the motor driving large current circuit unit, so that the effect of the fourth aspect is further improved. . That is, it can be said that the configuration of claim 4 is suitable for the configuration of claim 3. According to a fifth aspect of the present invention, there is provided a motor drive large current circuit integrated hydraulic control device according to the fourth aspect, wherein the motor drive large current circuit integrated hydraulic control device swings the electronic board inserted in the electronic board part. It is characterized in that an elastic engagement member is provided which is elastically deformed by being moved in parallel and engages with the electronic board.

The electronic board portion should be as small as possible from the viewpoint of downsizing of the large current circuit integrated hydraulic control device for driving the motor. However, when the electronic board is attached with screws or the like, for example, it is necessary to insert the electronic board into the electronic board portion and then tighten the screws or the like, and a space for inserting a tool therefor is required.

However, according to the fifth aspect of the present invention, since it is only necessary to swing or translate the electronic substrate, it is not necessary to use a screwdriver or the like, and a space for tools is not required. It is suitable for downsizing of an electronic board unit, that is, a motor drive large current circuit integrated hydraulic control device.

And, as described in claim 6, claim 5
In the motor drive large current circuit integrated hydraulic control device according to the aspect, a board terminal connecting the motor drive large current circuit and the electronic board is configured such that the electronic board fixed in the electronic board unit is substantially vertical. When it extends in the penetrating direction, the electronic board can be connected by penetrating the electronic board by swinging or moving in parallel, so that the electronic board can be attached more easily.

According to a seventh aspect of the present invention, there is provided a large-current circuit-integrated hydraulic control device for driving a motor, wherein the large-current circuit-integrated hydraulic control device for driving a motor includes the operating portion and the electronic part. It is characterized in that it is arranged so as to be offset from the substrate portion in a plane. In the housing of the high-current circuit unit for driving a motor, an operating section in which an electric actuator (for example, a solenoid) for operating a valve is arranged and an electronic board section in which an electronic board is arranged are provided, and they are arranged at positions displaced from each other in a plane. Since they are arranged, the assembly of the solenoid or the like in the operating part and the attachment of the electronic board in the electronic board part can be performed separately. For example, it is possible to mount the electronic board after the solenoid or the like is assembled in advance, or to mount the solenoid or the like after the electronic board is mounted. Therefore, the work procedure at the time of manufacturing becomes flexible, and as a result, work efficiency is improved.

Since the large-current circuit-integrated hydraulic control device for driving a motor according to claims 1 to 6 is a separate body from an electronic control unit (ECU) composed of, for example, a microcomputer for performing various controls, Disadvantages of equipping the ECU with a large current circuit (noise, large current harness, large ECU,
Neither the yield of the substrate nor the like) occurs.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to Examples of the present invention.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIGS. 1 to 4, the overall construction of a motor drive large current circuit integrated hydraulic control device of the present embodiment will be described. 1 is a front view (partially cut away) of a motor drive large current circuit integrated hydraulic control device, FIG. 2 is a plan view, FIG. 3 is a left side view, and FIG. 4 is cut at a position different from FIG. It is a front view.

As shown in FIGS. 1 to 4, the motor drive large-current circuit-integrated hydraulic control device of this embodiment controls the wheel cylinder pressure and the like for vehicle control such as anti-skid control (ABS control). Hydraulic unit 1 for adjusting hydraulic pressure
The motor driving large current circuit unit 2 for driving the motor 41 and the like for adjusting the hydraulic pressure are integrally fixed. In the present embodiment, an electronic control unit (ECU, which is not shown and detailed description is omitted) that is a control unit that performs various calculations for controlling hydraulic pressure is It is provided separately.

The hydraulic unit 1 includes a pump 42 for generating hydraulic pressure, and a motor 4 as a drive source of the pump 42.
1, a damper 43 for preventing pulsation of hydraulic pressure, a reservoir 44 for adjusting the amount of oil in the hydraulic unit 1, and the like. Further, a housing of the hydraulic unit (hereinafter, referred to as a hydraulic unit housing) 40 is a container made of a substantially box-shaped aluminum alloy as shown in FIG.
A hole 61 for accommodating the valve 5, a hole 62 for accommodating the pressure sensor 8 corresponding to a sensor for detecting the state of the hydraulic mechanism, a hole 63 for accommodating the pump 42, a hydraulic circuit 46, etc. are provided. The valve 5, the pressure sensor 8, and the pump 42 are housed in the holes 61, 62, and 63, respectively.

The hatched portion is a passage groove 64 which is recessed from the periphery thereof. This passage groove 6
4 is formed when the hydraulic unit housing 40 is cast. Further, since the region where the passage groove 64 is provided is a region where nothing has been provided conventionally,
By providing the passage groove 64, for example, the arrangement and dimensions of parts, holes, oil passages, etc. of the hydraulic unit housing 40 are not limited. The function of the passage groove 64 will be described later.

As shown in FIG. 1, the valve 5 is integrated with a solenoid 7 corresponding to an electric actuator to form a solenoid valve (electromagnetic valve). The valves 5 and the pressure sensor 8 are centrally arranged in the upper 2/3 region of the hydraulic unit housing 40, and the region is the valve arrangement portion 16. The solenoid 7 (valve 5) and the pressure sensor 8 are fixed to the hydraulic unit housing 40 by caulking.

On the other hand, the motor driving large current circuit unit 2
Includes a housing (hereinafter, referred to as a large current circuit unit housing) 3. The large current circuit unit housing 3 includes a resin box-shaped case portion 10, and the case portion 10 shown in FIGS. 4 is a resin cover 11 that covers the left opening.

In the large current circuit unit housing 3, there are provided an electronic board portion 6 in which an electronic board 4 for controlling the motor drive is housed, and an operating portion 9 in which a solenoid 7 and a pressure sensor 8 are housed. ing. In particular, the electronic board portion 6 and the operating portion 9 are arranged substantially parallel to each other with a plane shift along the vertical direction (arrow direction shown in FIG. 1). That is, when the electronic board portion 6 and the operating portion 9 are projected onto the hydraulic unit housing 40 (projected with a line of sight perpendicular to the vertical direction), the projections do not overlap.

Through holes 31 are provided at four corners of the case 10 as shown in FIGS. 6 and 8, and the through holes 3 are formed.
It is fixed to the hydraulic unit housing 40 by a screw member 29 penetrating 1 and screwed into the hydraulic unit housing 40. At the joint between the case portion 10 and the hydraulic unit housing 40, as shown in FIG. 10B, a packing formed of a large ring portion 70a and two small ring portions 70b along the contour of the operating portion 9. 70 is interposed.

Further, as shown in FIGS. 6 and 8, on the end surface of the case portion 10 on the cover 11 side, a portion 32a along the outer periphery of the case portion 10 and a boundary between the electronic board portion 6 and the operating portion 9 are provided. A substantially 8-shaped wall 32 composed of a transverse portion 32b is provided, and the cover 11 is vibration-welded to the wall 32 at the peripheral edge portion 11b and the transverse portion 11c.

Therefore, the case portion 10 and the cover 11 are integrated to form the large current circuit unit housing 3, and the hydraulic unit housing 4 is formed by the screw member 29.
It is fixed at 0. In addition, the case portion 10 and the cover 11
Since the and are integrated by welding, water and the like can be prevented from entering the inside of the high-current circuit unit housing 3 from the joint portion between the two.

In the case portion 10 of the housing 3 for a large current circuit unit, the operating portion 9 side is provided with a partition wall 13 arranged in the up-and-down direction, and the first block 15 on the cover 11 side is provided.
And the second block 17 on the hydraulic unit 1 side. A bus bar 19 (see FIG. 6 and FIG. 8 for its shape) is formed in the partition wall 13 as a circuit pattern for a large current by subjecting a conductive metal plate (copper plate in this embodiment) to punching or bending. Plural sheets (two sheets in this embodiment) are arranged. In this embodiment, the bus bar 19 is used as a large current circuit for 12V and 80A, a solenoid current circuit, a pressure sensor circuit, and the like.

An end portion 19 of this bus bar 19 for connecting to a substrate
a projects from the partition wall 13 to reach the electronic substrate portion 6 and is connected to the electronic substrate 4. The end portion 19b of the bus bar 19 in the first block 15 is bent in a direction perpendicular to the partition wall 13 so as to stand up from the main body portion of the bus bar 19. These end portions 19b are for connecting the bus bar 19 to the solenoid 7 and the pressure sensor 8, and the terminal 7a extending from the solenoid 7 and the terminal 8a extending from the pressure sensor 8 are resistance-welded.

Further, the bus bar 19 is provided with an end portion 19c (see FIGS. 6 and 8) for the motor + side terminal wire 45, and one end of the motor + side terminal wire 45 is resistance-welded thereto. There is. As shown in FIG. 4, the motor + side terminal wire 45 is bent from the operating section 9 to the electronic board section 6 side and penetrates the hydraulic unit housing 40 on the electronic board section 6 side.
It has reached the motor 41. That is, the motor + side terminal wire 45 bypasses the valve arrangement portion 16 and penetrates the hydraulic unit housing 40. This allows the busbar 1
It is possible to supply electric power from 9 to the motor 41 through the motor + side terminal wire 45. The motor 41 is grounded via the hydraulic unit housing 40.

The electronic board portion 6 is also covered by the cover 1 in the same manner as the operating portion 9.
Although it is divided into one side and the case section 10 side, the cover 11 side and the case section 10 side are not divided by a partition wall or the like, and are different from the operating section 9 in that they are a series of spaces. The substrate chamber 6a on the case portion 10 side of the electronic substrate portion 6 also serves as an extension portion of the partition wall 13 and holds the end portion 19a of the bus bar 19 as shown in FIG. 5 and FIG. Inclined wall 5 connected to terminal holding portion 51
2, the stepped wall 54 facing the inclined wall 52, the bottom wall 53 disposed between the inclined wall 52 and the stepped wall 54, and the like are provided, and the substrate chamber 6a is open only on the cover 11 side.

Therefore, in the state where the case portion 10 and the cover 11 are joined as described above (see, eg, FIG. 1),
Although the electronic board 6 is in a hermetically sealed state, a part of the cover 11 that covers the electronic board 6 is provided with a vent hole 12, and gas (air, water vapor, etc.) passes inside the vent hole 12. Although the electronic board unit 6 is liquid-tight, it is not air-tight because a filter that allows liquids such as water to pass through is mounted. Then, the ventilation through the ventilation port 12 can prevent the temperature and humidity of the electronic substrate portion 6 from rising.

Further, as shown in FIGS. 5 and 6, the terminal holding portion 51 is provided with a central protrusion 51a, and the bottom wall 5
3 is provided with a recess 53a. Furthermore, the bottom wall 53
A pair of snap fits 56 corresponding to elastic engaging members are provided upright along both sides of the inclined wall 52 (see FIG. 6).

The procedure for housing and fixing the electronic substrate 4 in the substrate chamber 6a is as follows. First, the electronic substrate 4 is attached to the bottom wall 53.
Is inserted into the substrate chamber 6a along a direction perpendicular to
One end of the electronic substrate 4 is located in the recess 53a. And
The electronic board 4 is displaced (swinging displacement) so as to be tilted toward the inclined wall 52 side with the recess 53a as a fulcrum, and the end 19a of the bus bar 19 corresponding to each hole contact 4a (see FIG. 8) of the electronic board 4 is formed.
Insert the tip of the. At this time, the side portion of the electronic substrate 4 is brought into contact with the guide surface 56b of the snap fit 56. Then, when a force is applied in the direction of pressing the electronic board 4 toward the inclined wall 52 side, the electronic board 4 snaps into the snap fit 5
6 is elastically deformed so as to push it away to the left and right, and passes between the snap fits 56, and as shown in FIGS. 7 and 8, the side portions of the electronic board 4 are engaged with the snap fits 56 and the electronic board 4 is fixed.

The end 19a of the bus bar 19 penetrates the hole contact 4a, and the end 19a is electrically connected to the hole contact 4a by soldering, that is, the bus bar 19 and the electronic board 4 are connected. The extending direction of the end portion 19a is diagonally downward and leftward in FIGS. 5 and 7 so as to be perpendicular to the electronic substrate 4 fixed by the snap fit 56. For this reason, the oscillating displacement direction of the electronic substrate 4 is substantially along the extending direction of the end portion 19a, and an unreasonable force is not applied to the connection between the two.

When the electronic board 4 is engaged with the snap fit 56, the back surface of the electronic board 4 is brought into contact with the central protrusion 51a of the terminal holding portion 51, and the electronic board 4 is attached to the snap fit 56 side (both sides). The central projection 51a is more elastically deformed into a bow shape than the side). For this reason, the elastic force of the electronic substrate 4 acts on the snap fit 56 to strengthen the engagement with the snap fit 56. In addition, the back surface 56 of the snap fit 56
Since a is in contact with the electronic board 4 in a wide range, the mounting of the electronic board 4 is stable in this respect as well.

As shown in FIGS. 1, 3, 10 and the like, a communication chamber 72 is provided behind the stepped wall 54, and the communication chamber 72 is opened to the outside by a nozzle 71 corresponding to a ventilation opening. Has been done. The hydraulic chamber housing 40 side of the communication chamber 72 is open as shown in FIG.
It communicates with the passage groove 64. Further, as shown in FIG. 10, the inner portion of the passage groove 64 communicates with the operating portion 9 (second block 17) of the case portion 10. Therefore, the nozzle 7
A series of paths (path D shown by an arrow in FIG. 10) including 1 to the communication chamber 72, the passage groove 64, and the operation unit 9 is configured.

The nozzle 71 is located at the lowermost portion when the motor drive large current circuit integrated hydraulic control device is used (mounted on the vehicle). Further, the nozzle 71 and the communication chamber 72
The dimensions of the passage groove 64 and the passage groove 64 are set such that a water droplet moving along the path D indicated by the arrow does not block the path D due to surface tension. Therefore, when a water droplet is present in the operating unit 9, the water droplet is discharged from the nozzle 71 through the path D to the outside.

The cause of water droplets is due to dew condensation, flooding, etc. due to a temperature change in the operating part 9 (the temperature is raised when the motor drive large current circuit integrated hydraulic control device is in operation, and is lowered when it is stopped). Flooding is possible, but flooding cannot be completely prevented. However, since the dimension of the route D is set as described above and there are two routes D, the air permeability between the operating unit 9 and the outside is extremely good, and the temperature changes due to the constant ventilation. It is possible to favorably prevent the dew condensation caused by.

In other words, dew condensation during normal use can be sufficiently prevented, and even if water droplets form on the operating portion 9 due to dew condensation or water immersion, they can be quickly and reliably discharged. Therefore, failure, rust, corrosion, etc. due to water droplets can be favorably prevented. The motor drive large current circuit integrated hydraulic control device of the present embodiment is assembled in the following steps, for example.

First, in the hydraulic unit housing 40,
The motor 41, the pump 42, the valve 5 (the solenoid 7 is also integrated), the pressure sensor 8 and the like are assembled, and the motor + side terminal wire 45 is also passed through the hydraulic unit housing 40 and connected to the motor 41. That is, the hydraulic unit 1
Is completed.

Next, the solenoid 7 and the pressure sensor 8 are housed in the second block 17 of the case portion 10,
The case portion 10 is arranged on the upper surface of the hydraulic unit housing 40. As a result, the end portion 19b of the bus bar 19 and the terminals 7a and 8a of the solenoid 7 and the pressure sensor 8 come close to or contact each other. In addition, the bus bar 19 is the case portion 1.
When manufacturing 0, it is integrated into the partition wall 13 of the case portion 10.

Next, the screw member 29 is passed through the through hole 31 of the case portion 10 and the screw member 29 is rotated to screw the screw member 29 into the screw hole (not shown) of the hydraulic unit housing 40. As a result, the case portion 10 is fixed to the upper surface of the hydraulic unit housing 40.

Next, the end portion 19b of the bus bar 19 and the terminals 7a and 8a of the solenoid 7 and the pressure sensor 8 are
The end portion 19c of the bus bar 19 and the end portion of the motor + side terminal wire 45 are joined by resistance welding and electrically connected. Next, the electronic substrate 4 is attached as described above.

After that, the cover 11 is covered so as to cover the upper surface side of the case portion 10, and the case portion 10 is subjected to vibration welding.
And the cover 11 are joined and integrated. As a result, a motor drive large current circuit integrated hydraulic control device in which the hydraulic unit 1 is integrated with the motor drive large current circuit unit 2 is completed.

The following assembling procedure is also possible. First, the electronic substrate 4 is attached to the electronic substrate portion 6 of the case portion 10. On the other hand, separately from this, the hydraulic unit 1 is completed, and the solenoid 7 and the pressure sensor 8 are housed in the second block 17 of the case unit 10, so that the case unit 10 is placed on the upper surface of the hydraulic unit housing 40. Deploy.

Next, the screw member 29 is passed through the through hole 31 of the case portion 10, the screw member 29 is rotated, and the screw member 29 is screwed into the screw hole of the hydraulic unit housing 40. It is fixed on the upper surface of the housing 40. Next, the end 19b of the bus bar 19 and the terminals 7a and 8a of the solenoid 7 and the pressure sensor 8 are joined by resistance welding to the end 19c of the bus bar 19 and the end of the motor + side terminal wire 45, respectively. Connect electrically.

After that, the cover 11 is covered so as to cover the upper surface side of the case portion 10, and the case portion 10 is subjected to vibration welding.
And the cover 11 are joined and integrated. With such a procedure, the motor drive large current circuit integrated hydraulic control device in which the hydraulic unit 1 is integrated with the motor drive large current circuit unit 2 is completed.

As described above, in the motor drive large-current circuit-integrated hydraulic control device of this embodiment, the operating section 9 in which the solenoid 7 and the pressure sensor 8 are arranged and the electronic board section 6 in which the electronic board 4 is arranged are provided. Since they are arranged so as to be displaced in a plane, it is possible to separately manufacture the operating unit 9 and the electronic substrate unit 6,
Since the flexibility of the manufacturing procedure is increased, the above-mentioned two examples of assembly are possible.

The motor drive large-current circuit-integrated hydraulic control device according to the present embodiment has a hydraulic unit housing 40 in which:
Since the valve arranging portion 16 in which the valves 5 which are a part of the hydraulic mechanism are centrally arranged is provided, for example, the interval between the valves 5 can be reduced, and the space can be effectively used as compared with the case where the valves 5 are distributed. Therefore, miniaturization is possible.

In particular, since the motor + side terminal wire 45 bypasses the valve arranging portion 16, the valve arranging portion 16 is provided as in the case where the motor + side terminal wire is passed through the valve arranging portion 16.
There is no need to create extra space in the valve placement part 16
The degree of integration of the valve 5 can be maximized.

Further, the motor + side terminal wire 45 penetrates the hydraulic unit housing 40 on the electronic board 6 side, reaches the operation section 9 while avoiding the electronic board section 6, and is connected to the bus bar 19 in the operation section 9. Therefore, most of the bus bar 19 (other than the end portion 19a for connection with the electronic board 4)
Can be concentrated on the operating unit 9, and the large current circuit can be made compact.

Further, since the operating portion 9 and the electronic board portion 6 are provided in the large current circuit unit housing 3 and are arranged at positions displaced from each other in a plane, the operating portion 9
The connection work between the solenoid 7 and the like and the bus bar 19 and the mounting of the electronic board 4 in the electronic board unit 6 can be performed separately. For example, the connection with the bus bar 19 may be preceded and the electronic board 4 may be attached later, or vice versa. Therefore, the work procedure at the time of manufacturing becomes flexible, and as a result, work efficiency is improved.

Since the electronic board 4 is housed in the electronic board portion 6 while being tilted with respect to the vertical direction of the motor-driven large-current circuit integrated hydraulic control device, the electronic board 4 is parallel to the vertical direction. It is possible to reduce the installation area of the electronic substrate 4 as compared with the case where the electronic substrates 4 are arranged along. Therefore,
It is possible to downsize the large-current circuit-integrated hydraulic control device for driving the motor. In particular, the vertical dimension can be reduced.

A snap fit 56 is used to mount the electronic board 4, and the electronic board 4 can be mounted simply by inserting it into the board chamber 6a and oscillating and displacing it. The work man-hour is also reduced. Further, since no screws or the like are used, there is no need for a space for inserting a tool for such screws or the like into the substrate chamber 6a, which also contributes to the downsizing of the substrate chamber 6a, that is, the motor drive large current circuit integrated hydraulic control device. Becomes possible.

Further, the bus bar 1 connected to the electronic board 4
Since the end portion 19a of 9 extends so as to be perpendicular to the electronic board 4 fixed by the snap fit 56, the swing displacement direction of the electronic board 4 is substantially along the extending direction of the end portion 19a. It becomes a matter of course, and an unreasonable force is not added to the combination of both.

In addition, since the passage groove 64 is provided in the hydraulic unit housing 40 and is used as a part of the passage D for ventilation and drainage of the operating portion 9, the space corresponding to the passage groove 64 is large. It is not necessary to provide it in the current circuit unit housing 3. Therefore, it is possible to reduce the size of the large current circuit unit housing 3, that is, to reduce the size of the motor driving large current circuit integrated hydraulic control device.

Further, since the communication chamber 72 is provided along the lowermost wall of the large current circuit unit housing 3 and communicates with the passage groove 64 on the bottom side of the substrate chamber 6a, the depth of the substrate chamber 6a is increased. Can be taken. Thereby, the electronic substrate 4
Can be accommodated in the substrate chamber 6a (the amount of protrusion of the electronic substrate 4 toward the cover 11 side can be reduced), so that the amount of swelling of the cover 11 in the electronic substrate portion 6 (swelling to the left in FIGS. 1 and 4) It is possible to reduce the size of the housing 3 for the large current circuit unit, that is, the size of the hydraulic controller for a large current circuit for driving a motor.

Moreover, since the labyrinth is formed by the nozzle 71, the communication chamber 72, and the passage groove 64, even when the motor-driving large-current circuit-integrated hydraulic control device is submerged in water, the operating part 9 can be immediately submerged. Not only that, it is also excellent in waterproofing under such circumstances.

Since the passage groove 64 is provided in a region of the hydraulic unit housing 40 which has not been conventionally used, by providing the passage groove 64, for example, parts or holes of the hydraulic unit housing 40, There is no restriction on the layout or dimensions of oil passages, etc., and the unused space is effectively used. Moreover, since the passage groove 64 is formed when the hydraulic unit housing 40 is cast, the passage groove 6 is formed.
No cutting process, such as drilling, is required to provide No. 4. In other words, in order to provide the passage groove 64, it is only necessary to form the mold in accordance with the shape, and no special labor is required, so there is no risk of cost increase. Moreover, since the passage groove 64 is provided, the amount of metal (aluminum alloy in this embodiment) used for each hydraulic unit housing 40 can be reduced, which results in cost reduction in terms of material cost. It also saves resources.

When assembling the motor drive large current circuit integrated hydraulic control device, after at least the motor 41 and the motor + side terminal wire 45 are attached to the hydraulic unit housing 40, the large current circuit unit housing 3 is mounted. Since the case portion 10 is attached to the hydraulic unit housing 40, and the motor end portion 19c of the bus bar 19 and the motor + side terminal wire 45 are welded together, the motor end portion 19c and the motor + side terminal wire 45 are connected to each other. Connection is easy and reliable.

Although the embodiments of the present invention have been described above according to the embodiments, the present invention is not limited to the embodiments and various modifications can be made without departing from the gist of the present invention. Needless to say.

[Brief description of drawings]

FIG. 1 is a front view (partially cutaway view) of a motor drive large current circuit integrated hydraulic control device according to an embodiment.

FIG. 2 is a plan view of a motor drive large current circuit integrated hydraulic control device according to an embodiment.

FIG. 3 is a left side view of the motor drive large current circuit integrated hydraulic control device of the embodiment.

FIG. 4 is a front view of the motor drive large-current circuit-integrated hydraulic control device of the embodiment, broken away at a position different from that in FIG. 1.

FIG. 5 is an enlarged cross-sectional view of the vicinity of a substrate chamber of a motor drive large current circuit integrated hydraulic control device according to an embodiment.

FIG. 6 is a plan view of a case portion of a motor drive large current circuit integrated hydraulic control device according to an embodiment.

FIG. 7 is a diagram in which an electronic board is mounted in FIG.

FIG. 8 is a diagram in which an electronic board is mounted in FIG.

9A and 9B are explanatory views of the structure of the hydraulic unit housing of the embodiment, FIG. 9A is a left side view (on the side of the large current circuit unit housing), and FIG. 9B is a front view (partially). (Broken view).

FIG. 10 is an explanatory view of a passage for aeration and water drainage of the operation unit in the embodiment, FIG. 10 (a) is a partially cutaway front view of the hydraulic unit with a case portion mounted, and FIG. 10 (b).
FIG. 11 is a perspective view from the hydraulic unit side of FIG.

[Explanation of symbols]

1 ... hydraulic unit, 2 ... High current circuit unit for motor drive, 3 ... Housing for large current circuit unit, 4 ... Electronic board, 5 ... Valve (hydraulic mechanism), 6 ... Electronic board part, 6a ... substrate room, 7: Solenoid (electric actuator), 8 ... Pressure sensor (sensor), 9 ... Motion part, 10 ... Case part, 11 ... cover, 16 ... Valve placement part, 19 ... Bus bar (motor drive large current circuit), 19a ... edge (board terminal), 40 ... Housing for hydraulic unit, 41 ... Motor (hydraulic mechanism), 42 ... Pump (hydraulic mechanism), 43 ... Damper (hydraulic mechanism), 44 ... Reservoir (hydraulic mechanism), 46 ... Hydraulic circuit (hydraulic mechanism), 56 ... Snap fit (elastic engagement member). 64 ... passage groove, 71 ... Nozzle, 72 ... Communication room (opening for ventilation).

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F15B 11/00 B60T 8/34

Claims (7)

(57) [Claims] 1. A hydraulic unit containing a hydraulic mechanism for adjusting a hydraulic pressure for controlling a vehicle, and a motor driving large current circuit unit containing a motor driving large current circuit and a motor driving electronic board, which are integrally formed. A motor drive large current circuit integrated hydraulic control device assembled, wherein an electric actuator for operating the hydraulic mechanism and / or a sensor for detecting a state of the hydraulic mechanism are provided in a housing of the motor drive large current circuit unit. And an electronic board portion on which the electronic board is arranged, and at the portion of the hydraulic unit facing the housing of the motor driving large current circuit unit, a part is opened to the operation portion. Directly or indirectly to the ventilation opening provided in the lower surface in the use state of the motor drive high current circuit integrated hydraulic control device Large current circuits integrated hydraulic control system for driving a motor, characterized in that a passage groove communicates with the. 2. The motor drive large current circuit integrated hydraulic control device according to claim 1, wherein a housing of the motor drive large current circuit unit comprises:
The ventilation opening is provided in a lower surface portion of the motor driving large current circuit integrated hydraulic control device in a use state, and the ventilation opening and the passage groove are communicated with a housing of the motor driving large current circuit unit. A large current circuit integrated hydraulic control device for driving a motor, characterized in that a communication chamber is provided. 3. The motor drive large current circuit integrated hydraulic control device according to claim 2, wherein the communication chamber is along a wall surface which is a lower surface in a use state of the motor drive large current circuit integrated hydraulic control device. A large current circuit integrated type for motor drive, wherein the electronic board portion is arranged in a portion adjacent to the upper side of the communication chamber in a use state of the hydraulic controller for large current circuit integrated with a motor drive. Hydraulic control device. 4. The motor drive large current circuit integrated hydraulic control device according to claim 1, wherein the electronic board is oriented in a vertical direction of the motor drive large current circuit integrated hydraulic control device. A large-current circuit-integrated hydraulic control device for a motor drive, which is housed in the electronic board portion while being inclined or orthogonal to the vertical direction. 5. The motor drive large-current circuit integrated hydraulic control device according to claim 4, wherein the electronic board inserted in the electronic board portion is elastically deformed by rocking or moving in parallel to the electronic board. A hydraulic current control device for a large current circuit for driving a motor, characterized in that an elastic engagement member for engagement is provided. 6. The motor drive large current circuit integrated hydraulic control device according to claim 5, wherein a board terminal for connecting the motor drive large current circuit and the electronic board is fixed in the electronic board section. Also, a motor drive large current circuit integrated hydraulic control device is characterized in that it extends in a direction that penetrates the electronic substrate substantially vertically. 7. The motor drive large-current circuit integrated hydraulic control device according to claim 1, wherein the operating section and the electronic board section are arranged so as to be displaced from each other in a plan view. High-current circuit integrated hydraulic controller for motor drive.