CN1044887C - Moving promotor for controlling against slide - Google Patents

Abstract

The utility model relates to an actuator of an anti-slip control device which is waterproof, dustproof and capable of preventing dew condensation without destroying a housing chamber of a solenoid valve. It is provided with a plurality of valve accommodation holes 2 opened on one side 1a of the casing 1, each solenoid valve 3 is accommodated in the holes 2 and protruded from the casing 1, and the solenoid valve 3 is covered with a cover 4 installed on the casing 1. The projecting portion constitutes a solenoid valve housing chamber 5 by the cover 4 and the case 1 . At the same time, a communication hole 11 is formed on the housing 1 with one end communicating with the bottom of the solenoid valve housing chamber 5, and the other end extends downward and opens at the bottom surface 1b of the housing 1, and a section is formed on the other end opening of the communication hole 11. The enlarged portion 13 becomes larger downward.

Description

Actuators for anti-skid control

The present invention relates to an actuator for an anti-skid control device (ABS) provided on a vehicle.

Conventionally, the actuator of the anti-slip control device has been disclosed in JP-A-63-180550.

The actuator has a plurality of valve housing holes opened on one side of the valve housing part (housing), each solenoid valve is accommodated in the valve housing holes and protrudes from the valve housing part, and is mounted on the valve housing part. A cover member (cover) covers the protruding portion of the solenoid valve, and the solenoid valve housing chamber is constituted by the cover member and the valve housing portion. Furthermore, the gap between the cover member and the valve housing portion is sealed with a packing sheet, so that the electromagnetic valve housing chamber can be kept waterproof and dustproof against air.

However, a discharge hole is formed in the cover member to discharge the brake fluid that has infiltrated into the solenoid valve housing chamber from an unsealed place in the solenoid valve housing part to the outside. Therefore, the solenoid valve housing chamber directly opens to the outside through the discharge hole, which damages the waterproof and dustproof of the solenoid valve housing chamber.

Moreover, in the absence of the above-mentioned discharge hole, the other side of the waterproof and dustproof of the solenoid valve housing chamber is sought. Due to changes in the outside air temperature and air pressure, condensation occurs in the solenoid valve housing chamber, so the metal exposed in the solenoid valve housing chamber Some will rust. In the solenoid valve housing chamber, when one end of the connection sheet is connected to the connection pin provided on the cover member by soldering, and the other end of the connection sheet is connected to the solenoid valve by soldering, there may be problems in the soldered part, etc. Hazards such as peeling, disconnection and short circuit.

The present invention was developed to solve the above-mentioned problems, and an object of the invention is to provide an actuator for an anti-slip control device that does not damage the waterproof and dustproof of the electromagnetic valve housing chamber and can prevent dew condensation.

In order to achieve the above-mentioned purpose, the first structure of the present invention is to provide a valve receiving hole at the opening on one side of the housing, accommodate the solenoid valve in the housing hole and make it protrude from the above-mentioned housing, and cover it with a cover mounted on the above-mentioned housing. Cover the protruding part of the above-mentioned electromagnetic valve, and the electromagnetic valve housing chamber is formed by the cover and the above-mentioned housing. Extending downward and opening on the bottom surface of the housing, an enlarged portion whose cross-section gradually expands downward is formed at the opening at the other end of the communicating hole.

The second structure of the present invention is to provide a valve receiving part at the opening on one side of the housing, accommodate the solenoid valve in the valve housing hole and make it protrude from the housing, and cover the solenoid valve with a cover mounted on the housing. The protruding part of the electromagnetic valve housing is formed by the cover and the above-mentioned housing, and it is characterized in that a bracket housing hole with a bottom is formed on the outer periphery of the housing below the electromagnetic valve housing chamber, so that there is a cylindrical bracket elastic body and a housing in the housing. The bracket insulator of the insulating shaft embedded in the bracket elastic body fits inside the bracket receiving hole. A storage chamber is formed by the end face of the bracket insulator and the bottom of the bracket accommodation chamber, and the lower part of the electromagnetic valve accommodation chamber communicates with the storage chamber through the communication hole formed on the housing. A communicating portion for communicating the storage chamber with the outside of the housing is provided between the bracket elastic bodies.

According to the first and second configurations, when condensation occurs in the solenoid valve housing and water droplets collect in the lower portion of the solenoid valve housing, the water droplets are guided by the communication hole to flow out of the solenoid valve housing.

And, in the first structure, since the other end of the above-mentioned communication hole is opened on the bottom surface of the housing, the water droplets flowing out of the above-mentioned solenoid valve housing chamber can be discharged to the outside of the housing, and the opening at the other end forms a section facing the housing. The enlarged portion gradually expands below, so the water droplets flowing out of the solenoid valve housing chamber can be smoothly discharged to the outside without being accumulated in the communication hole. In addition, when the air in the solenoid valve housing chamber shrinks due to temperature changes and air inflow occurs, it is also possible to prevent water droplets from being sucked into the solenoid valve housing chamber due to the air inflow.

In the second structure, the lower part of the solenoid valve housing chamber is communicated with the storage chamber through the communication hole, and the storage chamber is communicated with the outside of the housing through the communication portion, so that the water droplets flowing out of the solenoid valve housing chamber can be drained. Exhaust to the outside of the enclosure. In addition, once the water droplets flowing out of the solenoid valve housing chamber are stored in the storage chamber, when the air in the solenoid valve housing chamber shrinks due to temperature changes and air flows in, the solenoid valve housing chamber only sucks the air in the storage chamber. , can prevent water droplets from being sucked into the housing chamber of the above-mentioned solenoid valve.

Fig. 1 is a front view showing a section of a main part of a first embodiment of an actuator of an anti-slip control device according to the present invention.

Fig. 2 is a right side view of Fig. 1 .

Fig. 3 is a bottom view of Fig. 1 with a part omitted.

4 is an explanatory diagram of an airtightness test of the first embodiment of the actuator of the anti-skid control device according to the present invention.

5 is a front view showing a cross section of a main part of a second embodiment of an actuator of the anti-slip control device according to the present invention.

Fig. 6 is a right side view of Fig. 5 .

7 is an explanatory diagram of an airtightness test of the second embodiment of the actuator of the anti-skid control device according to the present invention.

Fig. 8 is a front view showing a section of a main part of a third embodiment of an actuator of the anti-slip control device according to the present invention.

Fig. 9 is a right side view of Fig. 8 .

Next, a first embodiment of the actuator of the anti-slip control device according to the present invention will be described with reference to FIGS. 1 to 4 .

FIG. 1 is a front view showing a cross section of an essential part of an actuator of the slip prevention control device, FIG. 2 is a right side view of FIG. 1 , and FIG. 3 is a bottom view of FIG. 1 with a part omitted.

The actuator has a plurality of valve housing holes 2 opened on one side 1a of the case 1. As shown in FIG. The valve housing hole 2 accommodates each solenoid valve 3 and protrudes from the housing 1 . The protruding portion of the solenoid valve 3 is covered by a cover 4 attached to the casing 1 . Furthermore, the solenoid valve housing chamber 5 is constituted by the above-mentioned cover 4 and the case 1 .

The solenoid valve 3 is fixed to the housing 1 by screwing bolts 7 passing through a pressure plate 6 that presses the protruding portion of the solenoid valve 3 . The substrate 8 contacting with the above-mentioned pressure plate ₆ is installed on the protrusion of the above-mentioned electromagnetic valve 3 with small screws 91, and the coil of the above-mentioned electromagnetic valve 3 is connected with the above-mentioned substrate 8 by soldering (not shown).

A screw 9 ₂ penetrates the outer peripheral portion of the cover 4 , and the screw 9 ₂ is screwed into the housing 1 , and the outer peripheral portion of the cover 4 is fixed to the housing 1 through the annular seal member 10 . The gap between the cover 4 and the casing 1 is sealed by the sealing member 10, so that the electromagnetic valve housing chamber 5 is protected from the atmosphere and dust.

A communication hole 11 communicating with the lower portion of the solenoid valve housing chamber 5 is formed in the housing 1 , and the other end of the communication hole 11 extends downward and opens to the bottom surface 1 b of the housing 1 .

More specifically, a plurality of recesses 12 having a diameter larger than that of the communication hole 11 are formed on the bottom surface 1b of the housing 1, and the other end of the communication hole 11 opens to one of the recesses 12A. At the other end opening of the communication hole 11 is formed a conical enlarged portion 13 whose cross section gradually expands downward.

According to the above configuration, when condensation occurs in the solenoid valve housing chamber 5 and water droplets collect in the solenoid valve housing chamber 5 , the water droplets are guided to the communication hole and flow out from the solenoid valve housing chamber 5 . The water droplets flowing out of the solenoid valve housing chamber 5 are discharged to the outside from the concave portion 12 . At this time, the water droplets flowing out of the solenoid valve housing chamber 5 are smoothly discharged to the outside by the enlarged portion 13 and are not accumulated in the communication hole 11 . Therefore, even when the air in the solenoid valve housing chamber 5 shrinks due to temperature changes and air flows in, water droplets can be prevented from being sucked into the solenoid valve housing chamber 5 by the air inflow.

The actuator with the above structure fits the positioning pin not shown in the figure into the recess 12 formed on the bottom surface 1b of the housing 1, and installs the solenoid valve on the housing 1 in the positioning state of the housing 1, and installs it on the housing 1 above. The cover 4 covers the solenoid valve 3 to form a solenoid valve housing chamber 5. After the solenoid valve housing chamber 5 is formed, as shown in FIG. The connector 21 pressurizes the solenoid valve housing chamber 5 with a pressure supply device 22 or a vacuum device 23 connected to the above-mentioned recessed portion 12A, or performs vacuum suction from the solenoid valve housing chamber 5, thereby enabling simple inspection of the solenoid valve housing chamber. The airtightness of chamber 5.

In this embodiment, since the recess 12 that can fit the positioning pin is formed on the bottom surface 1b of the housing 1, the other end of the communication hole 11 is enlarged by the enlarged part 13 in the recess 12A in the recess 12. However, it is also possible The other end of the communication hole 11 is directly opened to the bottom surface 1 b of the casing 1 at a place other than the above-mentioned recessed portion 12 .

Next, a second embodiment of the actuator of the anti-slip control device according to the present invention will be described with reference to FIGS. 5 to 7 , but the same structural components as those of the first embodiment are denoted by the same symbols, and description thereof will be omitted.

5 is a front view showing a cross section of a main part of a second embodiment of an actuator of the anti-slip control device according to the present invention, and FIG. 6 is a right side view of FIG. 5 .

In these figures, a bottomed holder housing hole 14 is provided on the outer periphery of the casing 1 below the solenoid valve housing chamber 5 . Insert the bracket insulator 17 into the bracket receiving hole 14. The insulator 17 has a cylindrical bracket elastic body 15 and a vehicle body (not shown) inserted in the hole ₁₅₁ formed in the center of the bracket elastic body 15. The engaging member is an insulating shaft 16 .

A flange portion 16 ₁ is provided at the middle portion of the above-mentioned insulating shaft 16. When the above-mentioned insulating shaft 16 is embedded in the bracket elastic body 15, the bracket formed by the end face 16 ₂ of the above-mentioned insulating shaft 16 and the end face 15 ₂ of the bracket elastic body 15 The end face ₁₇₁ of the insulator 17 is flat.

The insulator 17 is embedded in the bracket receiving hole 14 with a gap, and the storage chamber 18 is formed by the bottom 14 ₁ of the bracket receiving hole 14 and the end surface 17 ₁ of the above-mentioned insulator 17 .

A communication hole 11 ₁ is perforated at the upper end of the storage chamber 18 , and is connected to a communication hole 11 ₂ perforated at the lower part of the solenoid valve housing chamber 5 to form a communication hole 11 .

In addition, the storage chamber 18 is used as a communication portion communicating with the outside of the housing 1, and a minute groove 19 is formed on the outer peripheral portion of the holder elastic body 15. As shown in FIG.

In order to discharge the water accumulated in the storage chamber 18 smoothly, the micro groove 19 is arranged on the lower side of the casing 1, and in order to discharge the water separated from the air in the storage chamber 18 smoothly, the storage chamber 18 The inner minute groove 19 is provided not only on the lower side of the housing 1 but also on the upper side opposite to the lower side. Therefore, air is sucked into the storage chamber 18 through the micro groove 19 formed on the upper side of the housing 1, and water is discharged from the storage chamber 18 through the micro groove 19 formed on the lower side of the housing 1.

As shown in FIGS. 5 and 6 , when a plurality of microgrooves 19 are formed on the entire outer periphery of the bracket elastic body 15, the water in the storage chamber 18 is discharged from the plurality of microgrooves 191 formed on the lower side of the housing ₁ . , so that air flows into the storage chamber 18 from other micro-grooves ₁₉₂ , and the drainage effect of the above-mentioned storage chamber 18 can be improved.

According to the second embodiment of the above-mentioned structure, when dew condensation occurs in the above-mentioned solenoid valve housing chamber 5 and water droplets gather in the lower part of the solenoid valve housing chamber 5, the water droplets in the solenoid valve housing chamber 5 are guided by the communication hole 11, once The water stored in the above-mentioned storage chamber 18 starts to flow to the outside from the micro groove 19 for the outside of the bracket elastic body 15 . And, when the air in the above-mentioned solenoid valve housing chamber 5 shrinks due to temperature changes and air flows in, the external air is sucked into the above-mentioned storage chamber 18 by the above-mentioned micro groove ₁₉₂ , and flows into the above-mentioned solenoid valve housing chamber 5. , Therefore, water droplets can also be prevented from being sucked into the above-mentioned solenoid valve housing chamber 5 .

The airtightness test can be easily performed also in the second embodiment having the structure as described above. That is, as shown in FIG. 7, in this embodiment, a connector 24 having the same diameter as the bracket receiving hole 14 is inserted into the bracket receiving hole 14 that has not yet been embedded into the bracket insulator 17, and through the above-mentioned connector 24, the above-mentioned The airtightness of the solenoid valve housing chamber 5 is checked by pressure supply device 22 or vacuum device 23 of the holder housing hole 14 pressurizing the solenoid valve housing chamber 5 or performing vacuum suction from the solenoid valve housing chamber 5 .

In the above-mentioned second embodiment, a plurality of micro grooves 19 are formed on the external part of the bracket elastic body 15. However, as in the third embodiment shown in FIG. 8 and FIG. A plurality of tiny grooves 19 are formed on the inner wall of the bracket receiving hole 14 to communicate the storage chamber 18 with the outside of the housing 1 .

As described above, the present invention has a valve housing hole opened on one side of the housing, the solenoid valve is housed in the valve housing hole and protrudes from the housing, and the protrusion of the solenoid valve is covered with a cover attached to the housing. part, the solenoid valve housing chamber is formed by the cover and the housing, and since one end of the communication hole communicates with the lower part of the solenoid valve housing chamber, when dew condensation occurs in the solenoid valve housing chamber and the lower part of the solenoid valve housing chamber When the water droplets are collected, the communication holes can be used to guide the water droplets and flow out from the above-mentioned electromagnetic valve housing chamber. In the enlarged portion, the water droplets flowing out of the solenoid valve housing chamber are smoothly discharged to the outside from the opening at the other end forming the enlarged portion, and do not accumulate in the communication hole. Therefore, even when the air in the solenoid valve housing chamber shrinks due to temperature change and air inflow occurs, water droplets can be prevented from being sucked into the solenoid valve housing chamber due to the air inflow.

And, a bracket receiving hole is formed on the outer periphery of the above-mentioned casing below the above-mentioned electromagnetic valve housing chamber, and the bracket insulator is matched with the inside of the bracket receiving hole, and a storage chamber is formed by the end surface of the bracket insulator and the bottom of the above-mentioned bracket receiving hole, so that the above-mentioned When the lower part of the solenoid valve housing chamber communicates with the storage chamber through the communication hole formed on the housing, and a communication portion is provided between the housing housing hole and the housing elastic body to communicate the storage chamber with the outside of the housing. Once the water droplets flowing out of the electromagnetic valve housing chamber are accommodated in the storage chamber through the communication hole, they can be discharged to the outside of the housing through the communication portion. At this time, once the water droplets flowing out of the above-mentioned solenoid valve accommodation chamber are accommodated in the storage chamber, when the air in the above-mentioned solenoid valve accommodation chamber shrinks due to temperature changes and air flow occurs, the air in the above-mentioned storage chamber flows in, and the water droplets can be prevented from being released. Inhale in the housing of the above-mentioned solenoid valve.

Therefore, covering the shell with a cover can improve the waterproofness and dustproofness of the solenoid valve housing chamber, and can also eliminate rust and rust on the metal parts exposed in the solenoid valve housing chamber caused by condensation in the solenoid valve housing chamber. The failure of the electrical connection place of the solenoid valve can improve the reliability of the actuator.

Claims (5)

1. An actuator of an anti-slip control device, the actuator is provided with a valve accommodation hole at the opening on one side of the housing, a solenoid valve is accommodated in the housing hole and protrudes from the housing, and is installed on the housing The upper cover covers the protruding part of the electromagnetic valve, and the electromagnetic valve accommodation chamber is formed by the cover and the housing, and it is characterized in that a communication hole with one end communicating with the lower part of the electromagnetic valve accommodation chamber is formed on the housing, The other end of the communication hole extends downward and opens on the bottom surface of the housing, and an enlarged portion whose cross-section gradually expands downward is formed at the opening of the other end of the communication hole. 2. The actuator of the anti-slip control device according to claim 1, wherein as the enlarged portion, a concave portion having a diameter larger than that of the communication hole is formed on the bottom surface of the housing, so that the communication hole The other end opens on the recess. 3. An actuator of an anti-slip control device, a valve housing hole is provided at the opening on one side of the housing, a solenoid valve is accommodated in the housing hole and protrudes from the housing, and is covered by a cover installed on the housing The protruding part of the electromagnetic valve is composed of the cover and the housing to form a housing chamber for the solenoid valve. It is characterized in that a bottomed bracket housing hole is formed on the outer periphery of the housing below the housing chamber for the solenoid valve. Shaped bracket elastic body and the bracket insulator of the insulating shaft embedded in the bracket elastic body are matched with the inside of the bracket receiving hole, and a storage chamber is formed by the end surface of the bracket insulator and the bottom of the bracket receiving chamber, so that the electromagnetic valve is accommodated. The lower part of the chamber communicates with the storage chamber through a communication hole formed on the housing, and at the same time, a bridge is provided between the bracket receiving hole and the bracket elastic body to communicate the storage chamber with the outside of the housing. connected department. 4. The actuator of an anti-slip control device according to claim 3, wherein the communication portion is formed by forming a minute groove on the outer peripheral portion of the bracket elastic body. 5. The actuator of the anti-slip control device according to claim 3, wherein the communication portion is formed by forming a micro groove on the inner wall of the bracket receiving hole.

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