JP4270056B2 - Brake hydraulic pressure control unit for vehicles - Google Patents

Description

  The present invention relates to a vehicle brake hydraulic pressure control unit provided with an inside of a hydraulic circuit for controlling brake hydraulic pressure.

  Conventionally, for example, Patent Document 1 proposes a vehicle brake hydraulic pressure control unit in which a block in which a hydraulic circuit for controlling brake hydraulic pressure is formed is connected to a master cylinder via a seal plate. A block in such a vehicle brake hydraulic pressure control unit is formed by forming a pipe line for forming a hydraulic circuit. Then, a master cylinder is connected to the block via a seal plate, and various control valves and pumps are connected to constitute a hydraulic circuit for brake fluid pressure control.

  When such a vehicle brake hydraulic pressure control unit is transferred, for example, as disclosed in Patent Document 2, an opening of a pipe line drilled in a block is sealed with a resin plug or the like. As a result, it is possible to prevent water or foreign matter from entering the pipe.

  However, since the block is made of, for example, aluminum in consideration of weight reduction or the like, if the transfer is for a long time, for example, when transporting overseas, the intrusion of foreign matter is simply prevented with a resin stopper. Then block corrosion cannot be prevented. For this reason, in this case, the transfer is performed with the oil filled in the pipeline.

In addition, when the vehicle brake fluid pressure control unit is used as a final product, if air remains in the pipeline, the control response will be reduced. Air bleeding is performed by filling oil. At this time, there is a place where it is difficult for some air to escape, such as a control valve, so the oil must be filled into the pipe line with special equipment. For this reason, it is necessary to fill oil beforehand before transfer to a factory or the like.
JP-A-8-11697 JP 2002-339903 A

  However, in the conventional method of sealing the opening of the pipe line with a seal tape or a resin plug, when the pipe is filled with oil, the seal tape may be peeled off in the case of the seal tape. In the case of a resin stopper, since the resin stopper must be disposed in all the openings of the pipe line, many steps are required to attach the resin stopper. In particular, when a screw-in type resin stopper is used, since a male screw must be formed in the resin stopper and a female screw hole must be formed in the pipe line, the man-hour for forming them is increased, and the female screw hole is formed. There is also a problem that the degree of freedom of the shape of the opening portion of the pipeline is lost as much as necessary.

  In view of the above points, the present invention has a first object to provide a structure capable of ensuring oil sealability when a pipeline is filled with oil and transferred in a vehicle brake hydraulic pressure control unit. To do.

  Another object of the present invention is to reduce the number of man-hours required for sealing when a vehicle brake fluid pressure control unit is filled with oil in a pipe line for transfer.

  In order to achieve the above object, in the first aspect of the present invention, there are a plurality of pipes that have a front surface and a back surface, are configured to form a hydraulic circuit, and are connected to the pipe lines from the front surface. Block (3) in which ports (3a to 3h, 3q) are formed and female screw holes (3i to 3n) are formed, and an electronic component case for housing electronic components arranged on the back surface of the block (2) and a plate-like lid member (5) having a surface facing the front of the block (3) and having holes (5i to 5n) formed in portions corresponding to the female screw holes (3i to 3n) And a sealing member (41 to 48, 49c) disposed between the plate-like lid member (5) and the front surface of the block (3) and surrounding the plurality of ports (3a to 3h, 3q), and a plate-like lid member The holes (5i-5n) formed in (5) And a bolt (6i to 6n) fixed to a female screw hole (3i to 3n) formed in the block (3), and in the front of the block (3), a plate shape is used instead of the master cylinder. The lid member (5) is arranged, and the plate-like lid member (5) is fixed to the block (3) via the sealing members (41 to 48) with bolts (6i to 6n), so that the block ( The pipe line formed in 3) is sealed by a sealing member (41 to 48, 49c) and a plate-like lid member (5).

  In this way, one part of the plate-like lid member (5) is arranged on the front surface of the block (3) instead of the master cylinder, and the sealing members (41 to 48, 49c) are formed with bolts (6i to 6n). The plate-like lid member (5) is fixed to the block (3) via the. And the pipe line formed in the block (3) is sealed by the sealing member (41-48, 49c) and the plate-shaped lid member (5).

  Thus, sealing is performed by the brake-like lid member (5) that covers all the ports (3a to 3h, 3q) provided in the block (3). For this reason, when the vehicle brake fluid pressure control unit (1) is transferred in a state where oil is filled in the pipe line of the block (3), it is possible to obtain a structure capable of ensuring the oil sealability. Moreover, since it can seal with one component called a plate-shaped cover member (5), it becomes possible to reduce the man-hour required for sealing.

  In the invention described in claim 2, the female screw holes (3i to 3n) for fixing the plate-like lid member (5) to the block (3) are also used to fix the master cylinder to the block (3). The thickness of the portion of the plate-like lid member (5) where the holes (5i to 5n) are formed is equal to the thickness of the portion fixed to the block (3) in the master cylinder. It is said.

  Thus, the thickness of the part in which the holes (5i to 5n) are formed in the plate-like lid member (5) can be made equal to the thickness of the part fixed to the block (3) in the master cylinder.

  In this case, as shown in claim 3, a portion of the plate-like lid member (5), which is different from the portion where the holes (5i to 5n) are formed, is provided with a portion thinner than this portion. Can be.

  In this way, the material required for constituting the plate-like lid member (5) can be reduced, and the weight of the plate-like lid member (5) can be reduced. It is possible to reduce the weight when the hydraulic control unit (1) is transferred.

  Furthermore, in this case, as shown in claim 4, the bolts (6i to 6n) are used to fix the plate-like lid member (5) to the block (3) and to fix the master cylinder to the block (3). Therefore, it can be used for both purposes.

  In this case, it is not necessary to produce parts only for fixing the plate-like lid member (5) to the block (3), and for each port (3a to 3h, 3q), a female is used as in the conventional case. Since it is not necessary to form a screw hole, the degree of freedom of the shape of each port (3a-3h, 3q) is not reduced.

  In the invention according to claim 5, the seal members (41 to 48, 49c) are arranged between the master cylinder and the block (3) when the master cylinder is fixed to the block (3). It is provided in (4).

  As described above, when the seal plate (4) is used, there is an effect that no separate parts are required only for sealing between the plate-like lid member (5) and the block (3).

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
A vehicle brake fluid pressure control unit to which an embodiment of the present invention is applied will be described. FIG. 1 is a perspective view of a vehicle brake hydraulic pressure control unit 1 according to the present embodiment.

  As shown in FIG. 1, the vehicle brake hydraulic pressure control unit 1 in this embodiment includes an electronic component case 2, a block 3, a seal plate 4, a plate-like lid member 5, and a plurality of bolts 6i to 6n. It is the composition provided with. Such a vehicle brake hydraulic pressure control unit is configured to be used for transfer, and finally, the plate-like lid member 5 is replaced with a master cylinder (not shown), so that the vehicle brake hydraulic pressure is changed. It becomes the finished product of the control unit.

  The electronic component case 2 accommodates various control valves, ECU bases for driving a motor (not shown), and the like, in addition to various control valves serving as conduit components. The electronic component case 2 is provided with connectors 2a, 2b and 2c on the surface opposite to the block 3 and the like, and can be electrically connected to the outside through the connectors 2a, 2b and 2c.

  The block 3 is composed of, for example, an aluminum hexahedron. In the present specification, two surfaces of the block 3 having the largest area are referred to as a front surface and a back surface. The seal plate 4 is disposed on the front side of the block 3, and the electronic component case 2 is disposed on the back side.

  In block 3, holes are made in each face constituting the hexahedron, so that a pipe line (not shown) for constituting a hydraulic circuit is formed, and the opening when the holes are made is formed. By inserting a sealing plug (not shown), the liquid tightness of the pipe line is maintained. As shown in FIGS. 2 and 3, various ports 3 a to 3 h pierced so as to be connected to the pipeline are formed on the front surface of the block 3. In the case of the present embodiment, specifically, the M / C ports 3a and 3b connected to the master cylinder, the W / C ports 3c to 3f connected to the four wheel cylinders, and the RG port 3g connected to the regulator. An LR port 3h connected to the low-pressure reservoir and a port 3q connected to the pump are formed.

  Further, female screw holes 3i to 3n into which six bolts 6i to 6n are screwed are formed on the front surface of the block 3.

  As shown in FIGS. 2 and 4, the seal plate 4 is provided with a plurality of holes 4a to 4n and 4o to 4q on a thin metal plate having the same shape (square shape) as the front of the block 3, It is comprised by providing the sealing members 41-48 and 49a-49c in the inner periphery of what needs to be sealed among holes.

  Among the plurality of holes 4a to 4q, the holes 4a to 4n and 4q correspond to the plurality of ports 3a to 3h and 3q formed in the block 3 and the plurality of female screw holes 3i to 3n and 3q, respectively. . Among these holes 4a to 4n and 4q, seal members 41 to 48 and 49c are arranged on the inner walls of the holes 4a to 4h and 4q corresponding to the plurality of ports 3a to 3h and 3q. 49c, a plurality of ports 3a to 3h, 3q are formed so as to be accommodated.

  Of the plurality of holes 4a to 4q, the holes 4o to 4p do not correspond to the plurality of ports 3a and the plurality of female screw holes 3i to 3n, respectively. This is provided for accommodating the head of the pin, and the stepped portion of the pin head protruding from the master cylinder side can be absorbed by the holes 4o to 4p.

  FIG. 6 shows the A-A ′ cross section of FIG. 4. As shown in this figure, seal members 41 to 48 and 49a to 49c are provided so that a portion having an arcuate cross section protrudes from the inner periphery of each of the holes 4a to 4h and 4q. The diameter of the arcuate section is set to be slightly larger than the thickness of the metal plate constituting the seal plate 4, and the arcuate section is formed on each surface of the block 3 and the plate-like lid member 5. It comes to contact.

  The plate-like lid member 5 is made of, for example, aluminum, and is configured by a metal plate having a shape (square shape) equivalent to that of the front surface of the block 3 and the seal plate 4 as shown in FIGS. is there. The plate-like lid member 5 has female screw holes 3 i to 3 n formed in the block 3 and holes 5 i to 5 n corresponding to the holes 4 i to 4 n formed in the seal plate 4.

  Further, the plate-like lid member 5 is configured to be thick at the portions where these holes 5i to 5n are formed, specifically, at the upper and lower sides of the paper, and the inside thereof is thinned. . The thickness of the thickened portion of the plate-like lid member 5 is set to be equal to the thickness of the screw fastening fixing portion in the master cylinder.

  As shown in FIGS. 2 and 5, the six bolts 6i to 6n are respectively passed through the holes 5i to 5n formed in the plate-like lid member 5 and the holes 4i to 4n formed in the seal plate 4, respectively. It is screwed into the female screw holes 3i to 3n formed in the block 3.

  These six bolts 6i to 6n are also used for fixing the master cylinder. That is, six bolts 6i to 6n are used in the same manner when the plate-like lid member 5 and the seal plate 4 are fixed to the block 3, and when the master cylinder and the seal plate 4 are fixed to the block 3. It has become.

  At this time, as described above, the thickness of the thickened portion of the plate-like lid member 5 is set to be equal to the thickness of the screw fastening fixing portion in the master cylinder. Therefore, when the plate-like lid member 5 and the seal plate 4 are fixed to the block 3 with the six bolts 6i to 6n, when the master cylinder and the seal plate 4 are fixed to the block 3, both can be fixed without loosening. It is possible to prevent oil from leaking even when the pipe is filled with oil.

  The transfer method of the vehicle brake hydraulic pressure control unit 1 of the present embodiment described above will be described.

  In the vehicular brake hydraulic pressure control unit 1 of this embodiment, when the electronic component case 2 and the block 3 in the vehicular brake hydraulic pressure control unit 1 are transferred, as shown in FIG. The various ports 3a to 3h and 3q formed in the block 3 are blocked by using.

  At this time, the seal plate 4 used to seal the connection portion between the various ports 3a to 3h and 3q of the block 3 and the master cylinder is used, and the seal plate 4 is sandwiched between the block 3 and the plate-like lid member 5. Thus, the various ports 3a to 3h of the block 3 can be closed in a state of being securely sealed.

  Furthermore, for the fixation at this time, six bolts 6i to 6n used for fixing the master cylinder to the block 3 are used, and together with the six bolts 6i to 6n and the seal plate 4, the electronic component case 2 and Block 3 is transferred.

  By adopting such a transfer form, it becomes possible to simultaneously transfer the parts other than the master cylinder in the vehicle brake hydraulic pressure control unit 1 in a state where oil is filled in the pipe line. For this reason, long-term transfer is possible without causing corrosion from the pipe line formed in the block 3.

  Next, effects of the vehicle brake hydraulic pressure control unit 1 according to this embodiment will be described.

  (1) According to the vehicle brake hydraulic pressure control unit 1 of the present embodiment, sealing is performed by the brake-like lid member 5 that covers all the various ports 3 a to 3 h and 3 q provided in the block 3. For this reason, when the vehicle brake fluid pressure control unit 1 is transferred in a state where oil is filled in the pipe line of the block 3, a structure capable of ensuring oil sealing performance can be obtained.

  Moreover, since it can seal with one component called the plate-shaped cover member 5, it becomes possible to reduce the man-hour required for sealing.

  (2) Further, in the vehicle brake hydraulic pressure control unit 1 of the present embodiment, the bolts 6i to 6 originally used for fixing the master cylinder to the block 3 in order to fix the plate-like lid member 5 to the block 3. 6n is used. For this reason, it is not necessary to produce parts only for fixing the plate-like lid member 5 to the block 3, and it is not necessary to form female screw holes for the various ports 3a to 3h, 3q as in the conventional case. The degree of freedom of the shapes of the various ports 3a to 3h and 3q is not reduced. Therefore, for example, it is possible to insert an orifice component directly into the various ports 3a to 3h and 3q.

  Then, since the bolts 6i to 6n that are used to fix the master cylinder, which can be reliably fixed to the block 3, are used, the plate-like lid member 5 is peeled off from the block 3. Nor.

  (3) In the vehicle brake hydraulic pressure control unit 1 of the present embodiment, it is used for the seal between the plate-like lid member 5 and the block 3 and for the seal between the master cylinder and the pipe line formed in the block 3. The seal plate 4 to be used is used. For this reason, there is also an effect that no separate parts are required only for sealing between the plate-like lid member 5 and the block 3.

  (4) Furthermore, according to the vehicle brake hydraulic pressure control unit 1 of the present embodiment, the plate-like lid member 5 has a thickness other than the portion provided with the holes 5i to 5n into which the bolts 6i to 6n are inserted. It is thin. For this reason, it is possible to reduce the material required for constituting the plate-like lid member 5 and to reduce the weight of the plate-like lid member 5, thereby pulling the vehicle brake hydraulic pressure control unit 1. In this case, it is possible to reduce the weight.

(Other embodiments)
In the said embodiment, thickness except the part provided with the holes 5i-5n in which the volt | bolts 6i-6n are inserted among the plate-shaped cover members 5 is made thin. However, from the standpoint of sealing the block 3 and the plate-like lid member 5, it is not always necessary to make it thin.

  Moreover, as shown in FIG. 7, holes 5i to 5n into which bolts 6i to 6n are inserted by hollowing the inside of the thickened portion of the plate-like lid member 5 or bending one thin plate are provided. Only the provided part may be configured to be substantially thickened.

  For example, although the example in which the plate-like lid member 5 is made of aluminum has been shown, it is not necessarily made of aluminum. For example, iron or the like may be used.

  Furthermore, in the said embodiment, although the seal between the plate-shaped cover member 5 and the block 3 was performed by the seal plate 4, the seal plate 4 does not necessarily have to be used. Further, the seal plate 4 may be made of a single material instead of a composite material made of a thin plate and a seal member.

  For example, a sealing member that separates and seals each of the various ports 3a to 3h and 3q, or a sealing member that surrounds all the various ports 3a to 3h and 3q is disposed between the plate-like lid member 5 and the block 3. You may make it do. However, in this case, it is necessary to transfer the seal plate 4 separately or to prepare it at the transfer destination.

  In the above embodiment, the bolts 6 i to 6 n used to fix the master cylinder to the block 3 are used for fixing the plate-like lid member 5 and the block 3. Also for these bolts 6i to 6n, a dedicated object for fixing the plate-like lid member 5 and the block 3 may be used. However, also in this case, it is necessary to transfer the bolts 6i to 6n separately or to prepare them at the transfer destination.

  If a dedicated material for fixing the plate-like lid member 5 and the block 3 is used in this way, the thickness of the plate-like lid member 5 needs to be equal to the thickness of the fixed portion in the master cylinder. Also disappear.

It is a perspective view of the brake fluid pressure control unit for vehicles in a 1st embodiment of the present invention. FIG. 2 is an exploded view of the vehicle brake hydraulic pressure control unit shown in FIG. 1. It is a front view of the block with which the brake fluid pressure control unit for vehicles shown in FIG. 1 is equipped. FIG. 2 is a front view of a seal plate provided in the vehicle brake hydraulic pressure control unit shown in FIG. 1. FIG. 2 is a front view of a plate-like lid member provided in the vehicle brake hydraulic pressure control unit shown in FIG. 1. It is a fragmentary sectional view of the seal plate shown in FIG. It is a perspective view of the plate-shaped lid member with which the brake fluid pressure control unit for vehicles shown in other embodiments is equipped.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Brake hydraulic pressure control unit for vehicles, 2 ... Electronic component case, 3 ... Block, 3a-3h, 3q ... Port, 3i-3n ... Female screw hole, 4 ... Seal plate, 4a-4q ... Hole, 41-48 49a to 49c ... sealing member, 5 ... plate-like lid member, 5i-5n ... hole, 6i-6n ... bolt.

Claims (5)

A pipeline having a front surface and a back surface is configured to constitute a hydraulic circuit, and a plurality of ports (3a to 3h) connected to the pipeline from the front surface are formed and a female screw A block (3) in which holes (3i to 3n) are formed;
An electronic component case (2) for housing electronic components arranged on the back surface of the block;
A plate-like lid member (5) having a surface facing the front surface of the block (3) and having holes (5i to 5n) formed in portions corresponding to the female screw holes (3i to 3n);
Seal members (41 to 48, 49c) disposed between the plate-like lid member (5) and the front surface of the block (3) and surrounding the plurality of ports (3a to 3h, 3q),
Bolts (6i to 6n) fixed to the female screw holes (3i to 3n) formed in the block (3) through the holes (5i to 5n) formed in the plate-like lid member (5). Have
The plate-like lid member (5) is disposed on the front surface of the block (3) instead of the master cylinder, and the bolts (6i to 6n) are used to pass the seal members (41 to 48, 49c). The plate-like lid member (5) is fixed to the block (3), so that the pipe line formed in the block (3) becomes the seal member (41 to 48, 49c) and the plate-like lid. Brake hydraulic pressure control unit for vehicles, which is sealed by a member (5). The female screw holes (3i to 3n) for fixing the plate-like lid member (5) to the block (3) are also used to fix the master cylinder to the block (3). ,
The thickness of the portion of the plate-like lid member (5) where the holes (5i to 5n) are formed is equal to the thickness of the portion of the master cylinder fixed to the block (3). The vehicle brake hydraulic pressure control unit according to claim 1. The plate-like lid member (5) is provided with a portion whose thickness is thinner than that of the portion where the holes (5i to 5n) are formed. Item 3. The vehicle brake fluid pressure control unit according to Item 2. The bolts (6i to 6n) are used both for fixing the plate-like lid member (5) to the block (3) and for fixing the master cylinder to the block (3). The vehicular brake hydraulic pressure control unit according to claim 2 or 3. The seal members (41 to 48, 49c) are provided on a seal plate (4) arranged between the master cylinder and the block (3) when the master cylinder is fixed to the block (3). The vehicular brake hydraulic pressure control unit according to any one of claims 1 to 4, wherein the vehicular brake hydraulic pressure control unit is a vehicular brake pressure control unit.

Images