CN211344136U - Be applied to electromagnetism normally open valve of car ESC - Google Patents
Be applied to electromagnetism normally open valve of car ESC Download PDFInfo
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- CN211344136U CN211344136U CN201921955340.4U CN201921955340U CN211344136U CN 211344136 U CN211344136 U CN 211344136U CN 201921955340 U CN201921955340 U CN 201921955340U CN 211344136 U CN211344136 U CN 211344136U
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Abstract
The utility model discloses a be applied to car ESC's electromagnetism normally open valve. The oil filter comprises a guide sleeve, an armature core, a push rod, a valve body, a valve seat and an oil filter assembly, wherein the guide sleeve is fixedly covered at the upper end of the valve body; the valve seat is arranged in a central through hole at the lower end of the valve body, the lower end of the valve seat is sleeved in a central hole of the base, and the end oil filter is arranged in a slotted hole at the bottom of the base; a throttling support is sleeved in the center of the valve seat, and the lower end of the throttling support sequentially penetrates through the valve seat and the base and then is sleeved in the end oil filter; the mandril is arranged in the central through hole of the valve body, and three lugs are circumferentially arranged at the lower end of the throttling support; the steel ball is arranged in the communicating hole of the base. The utility model discloses an establish the check valve on the base, improved sealed reliability, increased the accuracy nature of control. Meanwhile, the part structure is simpler, and the device has the characteristics of convenience in installation and better durability.
Description
Technical Field
The utility model relates to a solenoid valve especially relates to an execution structure is normally opened to electromagnetism among automotive electronics stable system (ESC) that traveles.
Background
With the increasing popularization of the automobile electronic stability control system in the automobile, the functions are more and more perfect. The corresponding electromagnetic valve use frequency and the coverage rate of each working condition are also increased, the linear regulation and control of the brake pressure of the electromagnetic valve are required by the existing functions, and the accuracy is higher. The original electromagnetic valve can deform a sealing surface after frequent active pressurization, and the risk of leakage is caused under the condition of low-pressure working condition pressure maintaining, so that the braking performance is influenced.
Disclosure of Invention
In order to solve the problem that exists among the background art, the utility model discloses a be applied to car ESC's electromagnetism normally open valve, the check valve is established on the base, has improved sealed reliability, has increased the accuracy nature of control. Meanwhile, the part structure is simpler, and the device has the characteristics of convenience in installation and low cost.
The technical scheme of the utility model as follows:
the utility model comprises a guide sleeve, a linking core, a mandril, a valve body, a valve seat and an oil filter component, wherein the guide sleeve is fixedly covered at the upper end of the valve body, an armature core is assembled in the space formed by the upper end of the valve body and the inner cavity of the guide sleeve, a coil is arranged outside the guide sleeve around the armature core, and the outer peripheral surface of the linking core is in clearance fit with the inner peripheral surface of the guide sleeve; the oil filter assembly mainly comprises an annular oil filter, a steel ball, a base, a throttling support and an end oil filter, wherein a central through hole is formed in the middle of the valve body, the lower end of the valve body is in contact with the base, the valve seat is tightly installed in the central through hole at the lower end of the valve body, the lower end of the valve seat is sleeved in the central hole of the base, the annular oil filter is sleeved on the periphery of the lower end of the valve body, the lower end of the annular oil filter is fixedly sleeved and connected to the periphery of the base, the inner circumference of the valve seat is in interference fit with the base; a throttling support is sleeved in the center of the valve seat, and the lower end of the throttling support sequentially penetrates through the valve seat and the base and then is sleeved in the end oil filter; the ejector rod is arranged in a central through hole of the valve body, the upper end of the ejector rod is in contact connection with the bottom surface of the armature core, the lower end of the ejector rod is assembled to an overflowing hole formed in the top end of the valve seat, and the valve seat is connected with a step surface on a flange in the middle of the ejector rod through a spring; the lower end of the throttling support is circumferentially provided with three lugs which are uniformly distributed at intervals along the same circumference, the middle of the upper end face of the end oil filter is provided with a step through hole, and the three lug structures at the lower end of the throttling support are embedded in the upper hole of the step through hole; the upper hole of the step through hole for oil filter is communicated with the gap between the base and the lower end face of the valve body through the communicating hole.
An annular overflow groove is formed in the lower end face of the base on the periphery of the upper hole of the step through hole.
The middle of the lower end of the ejector rod is provided with a ball groove, a middle steel ball is arranged in the ball groove, and the steel ball is simultaneously arranged and matched with an overflowing small hole formed in the center of the top end of the valve seat.
The annular oil filter is provided with a through groove for oil passing along the circumference.
The central inner hole of the throttling support is designed with different sizes and apertures according to different oil inlet flow requirements, the central inner hole is divided into two sections with different outer diameters, and the outer peripheral surfaces of the two sections are respectively assembled with the inner hole wall surfaces of the valve seat and the base in a sealing mode.
The ejector rod is made of aluminum alloy material.
The utility model has the advantages that:
the utility model discloses electromagnetism normally open valve, simple structure, simple to operate, sealing performance is good.
The utility model discloses a check valve is strained terminal surface spacing, simple structure by base and end oil. The base is provided with the overflowing groove, so that the influence of end oil filter limiting on the flow is avoided; the base is made of metal materials, so that the sealing performance of the check valve cannot be reduced after the check valve works for a long time at high and low temperatures.
The utility model discloses a throttle support can change the hole aperture and come control to overflow the flow, connects valve body and support simultaneously, and the spacing throttle support of axial strains the step face with end oil and contacts, prevents to deviate from to influence sealedly.
The utility model discloses an aluminum alloy material is chooseed for use to the ejector pin, compares in traditional carbon steel ejector pin, and the aluminum alloy has magnetism barrier property, and the quality is little, and response time is short, the strong advantage of pressurize ability. Compared with a plastic ejector rod, the durability is higher.
Drawings
FIG. 1 is a structure diagram of an electromagnetic normally open valve;
FIG. 2 is an exploded view of an electromagnetic normally open valve;
FIG. 3 is an isometric view of the base 10;
fig. 4 is an isometric view of the throttle support 8.
In the figure: the oil filter comprises a guide sleeve (1), an armature core (2), a valve body (3), a push rod (4), a spring (5), a valve seat (6), an annular oil filter (7), a throttling support (8), a steel ball (9), a base (10) and an end oil filter (11).
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1, the normally open solenoid valve includes a guide sleeve 1, an armature core 2, a push rod 4, a valve body 3, a valve seat 6 and an oil filter assembly, the guide sleeve 1 is fixedly covered on the upper end of the valve body 3, the armature core 2 is assembled in a space formed by the upper end of the valve body 3 and the inner cavity of the guide sleeve 1, a coil is arranged outside the guide sleeve 1 around the armature core 2, the outer peripheral surface of the armature core 2 is in clearance fit with the inner peripheral surface of the guide sleeve 1, symmetrical oil grooves are arranged on two sides of the valve body 3, and an armature core moving space is formed in the.
As shown in fig. 1 and 2, the oil filter assembly mainly comprises an annular oil filter 7, a steel ball 9, a base 10, a throttling support 8 and an end oil filter 11, wherein a central through hole is formed in the middle of a valve body 3, the lower end of the valve body 3 is provided with the base 10 in a contact manner, a valve seat 6 is tightly mounted in the central through hole at the lower end of the valve body 3, the lower end of the valve seat 6 is sleeved in the central hole of the base 10, the annular oil filter 7 is sleeved on the periphery of the lower end of the valve body 3, the lower end of the annular oil filter 7 is fixedly sleeved and connected on the periphery of the base 10, the inner circumference of the valve seat 6 is in interference fit; a throttling support 8 is sleeved in the center of the valve seat 6, and the lower end of the throttling support 8 penetrates through the valve seat 6 and the base 10 in sequence and then is sleeved in the end oil filter 11; the ejector rod 4 is arranged in a central through hole of the valve body 3, the upper end of the ejector rod 4 is in contact connection with the bottom surface of the armature core 2, the lower end of the ejector rod 4 is assembled to a flow passing hole formed in the top end of the valve seat 6, and the valve seat 6 is connected with a step surface on a flange in the middle of the ejector rod 4 through a spring 5.
As shown in fig. 4, three lugs are circumferentially arranged at the lower end of the throttling support 8, the three lugs are uniformly distributed along the same circumference at intervals to form a flower shape capable of passing oil, a step through hole is formed in the middle of the upper end surface of the oil filter 11, the upper hole of the step through hole is a large hole, the lower hole of the step through hole is a small hole, and the three lug structures at the lower end of the throttling support 8 are embedded in the upper hole of the step through hole; as shown in fig. 3, a communication hole is formed in one side of the base 10, a steel ball 9 is mounted in the communication hole, the hole wall at the upper end of the communication hole is an annular conical surface with a small upper part and a large lower part, the upper hole of the step through hole of the end oil filter 11 is communicated with the gap between the base 10 and the lower end surface of the valve body 3 through the communication hole, and the gap between the base 10 and the lower end surface of the valve body 3 is communicated with the oil environment outside the valve body 3. The utility model discloses a steel ball sets up the structure and can overflow when oil pressure is big and handle, increase the flow.
An annular overflowing groove is formed in the lower end face of the base 10 on the periphery of the upper hole of the step through hole, and the overflowing groove is communicated with the upper hole of the step through hole.
The middle of the lower end of the ejector rod 4 is provided with a ball groove, a middle steel ball is arranged in the ball groove, the steel ball is arranged and matched with an overflowing small hole formed in the center of the top end of the valve seat 6, and the overflowing small hole formed in the center of the top end of the valve seat 6 is an annular conical surface with a large top and a small bottom.
The annular oil filter 7 is provided with through grooves for oil passing along the circumference, and the through grooves are uniformly distributed along the circumference at intervals.
The central inner hole of the throttling support 8 is designed with different sizes and apertures according to different oil inlet flow requirements, the outer diameter is divided into two sections, and the outer peripheral surfaces of the two sections are respectively assembled with the inner hole wall surfaces of the valve seat 6 and the base 10 in a sealing mode.
In specific implementation, the upper end face of the base 6 is provided with a small oil passing port groove, so that the contact between the valve body 3 and the end face of the base 10 is increased as much as possible, and the assembly stability is improved; the base 6 is made of metal materials, can resist high and low temperatures, and improves the stability of a sealing position.
The end oil filter 11 is matched with the base 10 for limiting, so that the steel ball 9 is prevented from falling; the end oil filter 11 is used for limiting and supporting the throttling support 8, and the throttling support 8 is prevented from falling off and sealing to lose efficacy when the oil pressure is too high.
When the armature core moves downwards to push the ejector rod to move, the armature core is attached to the conical surface of the valve seat to form sealing; the valve seat is pressed into the valve body, the base is connected with the valve body through the throttling support, the steel ball is arranged in a small hole in the base and limited through the oil filter at the end, the ring oil filter is arranged outside the valve body, when the oil pressure at the upper part of the steel ball is smaller than that at the lower part of the steel ball, the steel ball can be attached to the conical surface of the hole to form sealing, otherwise, the steel ball falls to form passage oil passing.
The utility model discloses a working process and principle as follows:
in the boosting stage, the armature core does not act, the spherical surface of the ejector rod is not attached to the valve seat, and brake fluid can flow from the high-pressure area to the low-pressure area through the inner hole of the valve seat and the one-way valve hole of the base.
And in the pressure maintaining stage, the armature core acts, the spherical surface of the ejector rod is attached to the valve seat to form sealing, after pressure is established, the oil inlet and the oil outlet at the position of the one-way valve of the base form pressure difference, and the steel ball can be attached to the conical surface to form sealing, so that pressure maintaining is performed.
Oil enters from the end oil filter 11, the outer circumference of the end oil filter 11 is in interference fit with the bottom of the base 10, the steel ball 9 and the base 10 form a one-way valve, and the steel ball 9 has a movable gap in the communicating hole along the axial direction of the valve body 3.
Under the coil power-off state of the armature core 2, the ejector rod 4 keeps moving upwards under the action of the liquid force at the lower end and the natural thrust of the spring 5, the ejector rod 4 drives the armature core 2 to move upwards along the axis direction until the armature core 2 is at the upper limit position of the self moving space, at the moment, the middle steel ball at the lower end of the ejector rod 4 is separated from the overflowing small hole of the base (6), and the oil inlet is opened. At the moment, liquid flows upwards along the upper hole of the step through hole of the end oil filter 11, the liquid flowing upwards pushes the steel ball 9 to be attached to the sealing conical surface, and the one-way valve is closed; liquid flows through the overflowing small holes and flows out of the valve body 3 through the oil outlet holes symmetrically arranged on two sides of the valve body 3, so that a normally open oil way of the normally open electromagnetic valve is formed.
Under the coil power-on state of the armature core 2, as shown in fig. 3, the coil generates electromagnetic force downward along the axis on the armature core 2 and applies the electromagnetic force to the ejector rod 4, the ejector rod 4 is subjected to stress analysis, the liquid force applied to the lower end of the ejector rod 4 and the elastic force of the spring 5 are both vertically upward, and upward resultant force is formed and is far smaller than the sum of the electromagnetic force applied to the ejector rod 4 by the armature core 2 and the downward resultant force of the gravity of the armature core and the ejector rod, so that the armature core 2 pushes the ejector rod to move downward until the armature core 2 is at the lower limit position of the self-moving space, the middle steel ball at the lower end of the ejector rod 4 is pressed and blocked with the small overflowing hole of the base 6.
At this time, the liquid cannot flow upwards along the upper hole of the step through hole of the end oil filter 11, and the oil path of the normally open solenoid valve is closed.
At the moment, the liquid flows upwards along the end oil filter 11, the steel ball 9 is pushed to be attached to the communicating hole by the liquid pressure of the liquid flowing upwards, and the one-way valve is closed.
During oil return, oil outside the valve body 3 enters the communicating hole through a gap between the base 10 and the lower end face of the valve body 3, the steel ball is pushed to move downwards, the communicating hole is opened, and the oil is communicated to enter the upper hole of the step through hole of the oil filter 11 and then returns to the original source through the lower hole of the step through hole of the oil filter 11.
Therefore, the utility model discloses a new electromagnetism normally open valve structure has advantages such as simple structure, simple to operate, leakproofness are more reliable, the durability is better under the demand of frequent pressure boost.
In addition to the above preferred embodiments, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope defined by the appended claims.
Claims (6)
1. An electromagnetic normally-open valve applied to ESC is characterized in that: the oil filter comprises a guide sleeve (1), an armature core (2), a mandril (4), a valve body (3), a valve seat (6) and an oil filter assembly, wherein the guide sleeve (1) is fixedly covered at the upper end of the valve body (3), a armature core (2) is assembled in a space formed by the upper end of the valve body (3) and an inner cavity of the guide sleeve (1), a coil is arranged outside the guide sleeve (1) around the armature core (2), and the outer peripheral surface of the armature core (2) is in clearance fit with the inner peripheral surface of the guide sleeve (1); the oil filter assembly mainly comprises an annular oil filter (7), a steel ball (9), a base (10), a throttling support (8) and an end oil filter (11), wherein a central through hole is formed in the middle of the valve body (3), the lower end of the valve body (3) is in contact with the base (10), the valve seat (6) is tightly mounted in the central through hole at the lower end of the valve body (3), the lower end of the valve seat (6) is sleeved in the central hole of the base (10), the annular oil filter (7) is sleeved on the periphery of the lower end of the valve body (3), the lower end of the annular oil filter (7) is fixedly sleeved and connected on the periphery of the base (10), the inner circumference of the valve seat (6) is in interference fit with the base (10), and the end oil filter (11) is; a throttling support (8) is sleeved in the center of the valve seat (6), and the lower end of the throttling support (8) sequentially penetrates through the valve seat (6) and the base (10) and then is sleeved in the end oil filter (11); the ejector rod (4) is arranged in a central through hole of the valve body (3), the upper end of the ejector rod (4) is in contact connection with the bottom surface of the armature core (2), the lower end of the ejector rod (4) is assembled to an overflowing hole formed in the top end of the valve seat (6), and the valve seat (6) is connected with a step surface on a flange in the middle of the ejector rod (4) through a spring (5); three lugs are circumferentially arranged at the lower end of the throttling support (8), are uniformly distributed at intervals along the same circumference, a step through hole is formed in the middle of the upper end face of the oil filter (11), and the three lugs at the lower end of the throttling support (8) are structurally embedded in the upper hole of the step through hole; a communicating hole is formed in one side of the base (10), a steel ball (9) is installed in the communicating hole, the wall of the upper end hole of the communicating hole is an annular conical surface with a small upper part and a large lower part, and the upper hole of the step through hole of the end oil filter (11) is communicated with a gap between the base (10) and the lower end face of the valve body (3) through the communicating hole.
2. An electromagnetic normally open valve applied to ESC according to claim 1, wherein:
an annular overflow groove is formed in the lower end face of the base (10) on the periphery of the upper hole of the step through hole.
3. An electromagnetic normally open valve applied to ESC according to claim 1, wherein:
the middle of the lower end of the ejector rod (4) is provided with a ball groove, a middle steel ball is arranged in the ball groove, and the steel ball is simultaneously arranged and matched with an overflowing small hole formed in the center of the top end of the valve seat (6).
4. An electromagnetic normally open valve applied to ESC according to claim 1, wherein:
the annular oil filter (7) is provided with a through groove for oil passing along the circumference.
5. An electromagnetic normally open valve applied to ESC according to claim 1, wherein:
the central inner hole of the throttling support (8) is designed into different sizes and apertures due to different oil inlet flow requirements, the outer diameter is divided into two sections, and the outer peripheral surfaces of the two sections are respectively assembled with the inner hole wall surfaces of the valve seat (6) and the base (10) in a sealing mode.
6. An electromagnetic normally open valve applied to ESC according to claim 1, wherein:
the ejector rod (4) is made of aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955340.4U CN211344136U (en) | 2019-11-13 | 2019-11-13 | Be applied to electromagnetism normally open valve of car ESC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955340.4U CN211344136U (en) | 2019-11-13 | 2019-11-13 | Be applied to electromagnetism normally open valve of car ESC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211344136U true CN211344136U (en) | 2020-08-25 |
Family
ID=72130269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921955340.4U Active CN211344136U (en) | 2019-11-13 | 2019-11-13 | Be applied to electromagnetism normally open valve of car ESC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211344136U (en) |
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2019
- 2019-11-13 CN CN201921955340.4U patent/CN211344136U/en active Active
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