CN109931407A - A kind of automobile brake normally open solenoid valve - Google Patents
A kind of automobile brake normally open solenoid valve Download PDFInfo
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- CN109931407A CN109931407A CN201810738330.9A CN201810738330A CN109931407A CN 109931407 A CN109931407 A CN 109931407A CN 201810738330 A CN201810738330 A CN 201810738330A CN 109931407 A CN109931407 A CN 109931407A
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- kinetoplast
- valve body
- valve
- throttle orifice
- normally open
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Abstract
The invention discloses a kind of automobile brake normally open solenoid valves, including valve seat, plunger tube and reset spring, valve seat is equipped with valve body, interconnected liquid outlet channel and throttle orifice are equipped in valve seat, the valve body is fixed with plunger tube, kinetoplast room is equipped in plunger tube, valve body cavity is equipped in valve body, kinetoplast is equipped in kinetoplast room, kinetoplast is connect with valve body slides, kinetoplast is equipped with push rod, push rod end is equipped with the valve head being adapted to throttle orifice, the valve head protrudes into valve body cavity and contacts with throttle orifice, the kinetoplast and the close end of valve body are equipped with boss rank, valve body is equipped with the concave station rank being adapted to boss rank close to end with kinetoplast；The reset spring is arranged in valve body cavity, and one end is connect with valve seat, and the other end is connect with push rod.The present invention provides providing, a kind of structure is simple, and electric current force characteristic linear character is obvious, is easy to control the higher normally open solenoid valve of precision to can get the preferable linearity when controlling wheel cylinder brake pressure with current control.
Description
Technical field
The present invention relates to automobile brake technical fields, more particularly, to a kind of automobile brake normally open solenoid valve.
Background technique
Solenoid valve is electromagnetically controlled industrial equipment, is the automatic foundamental element for controlling fluid, belongs to execution
Device, however it is not limited to hydraulic, pneumatic.Direction, flow, speed and the other parameters of medium are adjusted in industrial control system.
Solenoid valve can cooperate different circuits to realize expected control, and the precision and flexibility that control can guarantee.Automobile
It needs to use solenoid valve in anti-lock braking system, is used to control the brake pressure of wheel cylinder under anti-locking system for car effect.Now
Solenoid valve used in anti-locking system for car mostly uses planar poles to match, within the scope of impulse stroke, electricity that kinetoplast is subject to
Magnetic force property diverging, is not easily controlled, so that it is bad to cause stress characteristics linearity degree in current margin.
Chinese patent application publication number CN 102177057, publication date is on 09 07th, 2011, entitled " solenoid valve ",
Disclose a kind of wheel drag being especially for controlling the brake fluid system with anti-sliding control function of motor vehicles
Brake pressure solenoid valve, closed pressure medium path is set in the valve core inside of solenoid valve, pressure medium path can be with
It realizes effective flushing to armature chamber and therefore washes out bubble, but there are still the above-mentioned pressure characteristic linearity is bad for the patent
The problem of.
Summary of the invention
The present invention in order to overcome the shortcomings in the prior art, provides that a kind of structure is simple, and electric current force characteristic linear character is bright
It is aobvious, it is easy to that it is higher normally opened to control precision to can get the preferable linearity when controlling wheel cylinder brake pressure with current control
Solenoid valve.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of automobile brake normally open solenoid valve, including valve seat, plunger tube and reset spring, valve seat is equipped with valve body, on valve body
Equipped at least one feed pathway, interconnected liquid outlet channel and throttle orifice are equipped in valve seat, the valve body and plunger tube are solid
It is fixed, it is equipped with kinetoplast room in plunger tube, is equipped with valve body cavity in valve body, the kinetoplast room is connected to valve body cavity, is equipped in kinetoplast room dynamic
Body, kinetoplast are connect with valve body slides, and kinetoplast is equipped with push rod, and push rod end is equipped with the valve head being adapted to throttle orifice, the valve head
It protrudes into valve body cavity and is contacted with throttle orifice, close to holding equipped with boss rank, valve body is equipped with kinetoplast close to end for the kinetoplast and valve body
The concave station rank being adapted to boss rank；The reset spring is arranged in valve body cavity, and one end is connect with valve seat, and the other end and push rod connect
It connects.Magnetic pole is planar structure between kinetoplast and valve body in prior art, through the above technical solutions, being changed to boss
The step magnetic pole that rank is adapted to concave station rank, the field structure of step magnetic pole make kinetoplast when moving, the magnetic field between two magnetic poles
More uniform variation, so that the electric current force characteristic linear character for being subject to kinetoplast becomes apparent from, so that it is higher to be more advantageous to acquisition
Control precision.The feed pathway is formed by body base longitudinal grooved, and feed pathway is connected to outside solenoid valve and valve body cavity.
Preferably, the lateral wall of the boss rank is equipped with the inclination conical surface, formed between the inclination conical surface and the valve body
Air gap notch.The air gap notch keeps the magnetic field between kinetoplast magnetic pole and valve body magnetic pole more uniform, so that kinetoplast be made to be subject to
Electric current force characteristic linear character is more obvious.
Preferably, the push rod is equipped with the shaft shoulder, the reset spring is connect by the shaft shoulder with push rod, and the valve head is worn
It crosses inside reset spring and is contacted with throttle orifice.Reset spring is directly connected to push rod and valve seat, other opposite existing solenoid valves, no
It needs to be arranged other structures installation reset spring, keeps solenoid valve overall structure simpler.Push rod passes through reset spring, can make
Reset spring not run-off the straight when flexible, increases the stability of spring force.
Preferably, being equipped with stop collar in the kinetoplast room, the stop collar is fixed with kinetoplast chamber interior walls, the kinetoplast packet
The conical section for contacting stop collar is included, conical section passes through the centre bore of stop collar, and conical section maximum gauge is greater than stop collar
Centre bore aperture.When coil no power, spring force of the push rod by reset spring, kinetoplast is moved to far from valve seat direction, is limited
Block can limit the move distance, to limit the maximum opening of throttle orifice.
Preferably, the push rod is equipped with several oil grooves, the kinetoplast is equipped with several interface channels, the oil
Valve body cavity is connected to by slot and interface channel with kinetoplast room.The valve body cavity is connected to the liquid that can guarantee in two chambers with kinetoplast room
Press it is always consistent, thus avoid the thrust of hydraulic generation to solenoid valve control generate precision influence.
Preferably, the valve body is welded and fixed with plunger tube.There is the hydraulic oil of high pressure in solenoid valve, to leakproofness oil one
Provisioning request, welding can guarantee that bonding strength and leakproofness also make, and the structure of solenoid valve is more compact.
Preferably, the liquid outlet channel includes cylindrical fluid passage and conical fluid passage, conical fluid passage big opening end connection
Cylindrical fluid passage, conical fluid passage osculum end are connected to throttle orifice.The structure can be such that the flowing of hydraulic oil more gently stablizes,
Reduce interference of the flowing of disorder to control precision.
Preferably, the throttle orifice is cylindrical hole, throttle orifice is equipped with hemispherical shrinkage pool close to valve seat endface, described half
Spherical shrinkage pool is excessive by circular arc with valve seat end face, and the valve head and throttle orifice contact portion are hemispherical.The structure envoy
It is even closer when discharge orifice is contacted with valve head to be bonded, guarantee obturation effect when its fitting, throttle orifice can also be left in valve head
When, guarantee that there is preferable presentation attributes between valve head moving distance and throttle orifice aperture.
The beneficial effects of the present invention are: (1) structure is simple, difficulty of processing is small；(2) kinetoplast is in total travel working range,
Electric current force characteristic linear character is obvious, is easy to use current control, and (3) can get the preferable linearity when controlling wheel cylinder brake pressure,
It is higher to control precision.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the cross-sectional view in Fig. 1 at B-B.
In figure: valve seat 1, throttle orifice 1.1, liquid outlet channel 1.2, cylindrical fluid passage 1.2.1, conical fluid passage 1.2.2, valve body
2, feed pathway 2.1, valve body cavity 2.2, concave station rank 2.3, plunger tube 3, kinetoplast room 3.1, kinetoplast 4, boss rank 4.1, the inclination conical surface
4.2, push rod 5, valve head 5.1, reset spring 6, air gap notch 7, stop collar 8, oil groove 9.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments:
As shown in Figure 1, Figure 2 and Figure 3, a kind of automobile brake normally open solenoid valve, including valve seat 1, plunger tube 3 and reset spring 6,
Valve seat 1 is equipped with valve body 2, and valve body 2 is equipped at least one feed pathway 2.1, is equipped with interconnected liquid outlet channel in valve seat 1
1.2 and throttle orifice 1.1, the valve body 2 is fixed with plunger tube 3, and kinetoplast room 3.1 is equipped in plunger tube 3, is equipped with valve body in valve body 2
Chamber 2.2, the kinetoplast room 3.1 are connected to valve body cavity 2.2, and kinetoplast 4 is equipped in kinetoplast room 3.1, and kinetoplast 4 is slidably connected with valve body 2,
Kinetoplast 4 is equipped with push rod 5, and 5 end of push rod is equipped with the valve head 5.1 being adapted to throttle orifice 1.1, and the valve head 5.1 protrudes into valve body cavity
It 2.2 and is contacted with throttle orifice 1.1, the kinetoplast 4 and valve body 2 are equipped with boss rank 4.1, valve body 2 and kinetoplast 4 close to end and set close to holding
There is the concave station rank 2.3 being adapted to boss rank 4.1；The reset spring 6 is arranged in valve body cavity 2.2, and one end is connect with valve seat 1,
The other end is connect with push rod 5.Magnetic pole is planar structure between kinetoplast 4 and valve body 2 in prior art, passes through above-mentioned technical side
Case, is changed to the step magnetic pole that boss rank 4.1 is adapted to concave station rank 2.3, and the field structure of step magnetic pole makes kinetoplast 4 exist
When mobile, the more uniform variation in magnetic field between two magnetic poles, so that the electric current force characteristic linear character for being subject to kinetoplast 4 is brighter
It is aobvious, higher control precision is obtained to be more advantageous to.The coil is that the prior art is arranged on the outside of plunger tube, herein no longer
It is repeated.The feed pathway 2.1 is formed by 2 bottom longitudinal grooved of valve body, connection solenoid valve outside and valve body cavity 2.2.
The lateral wall of the boss rank 4.1 is equipped with the inclination conical surface 4.2, is formed between the inclination conical surface 4.2 and valve body 2
Air gap notch 7.The air gap notch 7 keeps the magnetic field between 2 magnetic pole of 4 magnetic pole of kinetoplast and valve body more uniform, thus make kinetoplast 4 by
The electric current force characteristic linear character arrived is more obvious.
The push rod 5 is equipped with the shaft shoulder, and the reset spring 6 is connect by the shaft shoulder with push rod 5, and the valve head 5.1 passes through
6 inside of reset spring is contacted with throttle orifice 1.1.Reset spring 6 is directly connected to push rod 5 and valve seat 1, other opposite existing solenoid valves
, it does not need setting other structures and reset spring 6 is installed, keep solenoid valve overall structure simpler.Push rod 5 passes through reset spring
6, not run-off the straight when flexible of reset spring 6 can be made, increase the stability of spring force.
It is equipped with stop collar 8 in the kinetoplast room 3.1, the stop collar 8 is fixed with 3.1 inner wall of kinetoplast room, and the kinetoplast 4 wraps
The conical section for contacting stop collar 8 is included, conical section passes through the centre bore of stop collar 8, and conical section maximum gauge is greater than stop collar 8
Centre bore aperture.When coil no power, spring force of the push rod 5 by reset spring 6, kinetoplast 4 is transported to far from 1 direction of valve seat
Dynamic, stop collar 8 can limit the move distance, to limit the maximum opening of throttle orifice 1.1.
The push rod 5 is equipped with several oil grooves 9, and the kinetoplast 4 is equipped with several interface channels, 9 He of oil groove
Valve body cavity 2.2 is connected to by interface channel with kinetoplast room 3.1.The valve body cavity 2.2 is connected to kinetoplast room 3.1 can guarantee two chambers
It is indoor hydraulic always consistent, to avoid influence of the thrust of hydraulic generation to the control generation precision of solenoid valve.
The valve body 2 is welded and fixed with plunger tube 3.There is the hydraulic oil of high pressure in solenoid valve, it is certain to leakproofness oil to require,
Welding can guarantee that bonding strength and leakproofness also make, and the structure of solenoid valve is more compact.
The liquid outlet channel 1.2 includes cylinder fluid passage 1.2.1 and conical fluid passage 1.2.2, conical fluid passage 1.2.2 big
Mouth end is connected to cylindrical fluid passage 1.2.1, and conical fluid passage 1.2.2 osculum end is connected to throttle orifice 1.1.The structure can make hydraulic
The flowing of oil is more gently stablized, and interference of the flowing of disorder to control precision is reduced.
The throttle orifice 1.1 is cylindrical hole, and throttle orifice 1.1 is equipped with hemispherical shrinkage pool, the hemisphere close to 1 endface of valve seat
Shape shrinkage pool is excessive by circular arc with 1 end face of valve seat, and the valve head 5.1 and 1.1 contact portion of throttle orifice are hemispherical.The structure
Make throttle orifice 1.1 is even closer when contacting with valve head 5.1 to be bonded, guarantees obturation effect when its fitting, it can also be in valve head
5.1 when leaving throttle orifice 1.1, guarantees there is preferable presentation attributes between 5.1 moving distance of valve head and 1.1 aperture of throttle orifice.
By implementing above-mentioned technical proposal, pressure of wheel braking cylinder controls the linearity and improves, and control effect significantly improves.In initial shape
Under state, due to the effect of reset spring 6, there are gap between the valve head 5.1 and throttle orifice 1.1 on push rod 5, liquid can pass through
Throttle orifice 1.1, solenoid valve are in normally open.When the coil is energized, kinetoplast 4 is driven push rod 5 towards valve by the effect of electromagnetic force
The movement of 1 direction of seat, to make valve head 5.1 contact throttle orifice 1.1 and be close to throttle orifice 1.1, throttle orifice 1.1 is closed, and makes electromagnetism
Valve is in the state closed.When the coil is de-energized, push rod 5 is under the action of reset spring 6, far from valve seat 1,1.1 quilt of throttle orifice
It opens, solenoid valve is restored to normally open again.The beneficial effects of the present invention are: structure is simple, difficulty of processing is small；Kinetoplast is in full row
In journey working range, electric current force characteristic linear character is obvious, is easy to current control, can get when controlling wheel cylinder brake pressure compared with
The good linearity, control precision are higher.
Claims (8)
1. a kind of automobile brake normally open solenoid valve, including valve seat, plunger tube and reset spring, valve seat is equipped with valve body, valve body
It is equipped at least one feed pathway, is equipped with interconnected liquid outlet channel and throttle orifice, the valve body and plunger tube in valve seat
It is fixed, it is equipped with kinetoplast room in plunger tube, is equipped with valve body cavity in valve body, the kinetoplast room is connected to valve body cavity, characterized in that kinetoplast
Interior is equipped with kinetoplast, and kinetoplast is connect with valve body slides, and kinetoplast is equipped with push rod, and push rod end is equipped with the valve being adapted to throttle orifice
Head, the valve head protrude into valve body cavity and contact with throttle orifice, and the kinetoplast and the close end of valve body are equipped with boss rank, valve body and kinetoplast
The concave station rank being adapted to boss rank is equipped with close to end；The reset spring is arranged in valve body cavity, and one end is connect with valve seat, another
End is connect with push rod.
2. a kind of automobile brake normally open solenoid valve according to claim 1, characterized in that the lateral wall of the boss rank
It is equipped with the inclination conical surface, forms air gap notch between the inclination conical surface and the valve body.
3. a kind of automobile brake normally open solenoid valve according to claim 1, characterized in that the push rod is equipped with axis
Shoulder, the reset spring are connect by the shaft shoulder with push rod, and the valve head, which passes through, to be contacted inside reset spring with throttle orifice.
4. a kind of automobile brake normally open solenoid valve according to claim 1, characterized in that be equipped with limit in the kinetoplast room
Position ring, the stop collar are fixed with kinetoplast chamber interior walls, and the kinetoplast includes the conical section for contacting stop collar, and conical section passes through
The centre bore of stop collar, conical section maximum gauge are greater than the centre bore aperture of stop collar.
5. a kind of automobile brake normally open solenoid valve according to claim 1 or 2 or 3 or 4, characterized in that the push rod
Several oil grooves are equipped with, the kinetoplast is equipped with several interface channels, the oil groove and interface channel for valve body cavity and moves
The connection of body room.
6. a kind of automobile brake normally open solenoid valve according to claim 1 or 2 or 3 or 4, characterized in that the valve body
It is welded and fixed with plunger tube.
7. a kind of automobile brake normally open solenoid valve according to claim 1 or 2 or 3 or 4, characterized in that the liquid out
Channel includes cylindrical fluid passage and conical fluid passage, and conical fluid passage big opening end is connected to cylindrical fluid passage, conical fluid passage osculum
End connection throttle orifice.
8. a kind of automobile brake normally open solenoid valve according to claim 1 or 2 or 3 or 4, characterized in that the throttling
Hole is cylindrical hole, and throttle orifice is equipped with hemispherical shrinkage pool close to valve seat endface, and the hemispherical shrinkage pool and valve seat end face pass through circle
Arc is excessive, and the valve head and throttle orifice contact portion are hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738330.9A CN109931407A (en) | 2018-07-06 | 2018-07-06 | A kind of automobile brake normally open solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738330.9A CN109931407A (en) | 2018-07-06 | 2018-07-06 | A kind of automobile brake normally open solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931407A true CN109931407A (en) | 2019-06-25 |
Family
ID=66984432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810738330.9A Pending CN109931407A (en) | 2018-07-06 | 2018-07-06 | A kind of automobile brake normally open solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531191A (en) * | 2021-07-14 | 2021-10-22 | 杭州群科荟科技有限公司 | Air gap magnetic conduction structure and gas solenoid valve thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203402182U (en) * | 2013-07-22 | 2014-01-22 | 浙江万向精工有限公司 | Normally open solenoid valve for car braking |
| CN106090266A (en) * | 2016-08-12 | 2016-11-09 | 简式国际汽车设计（北京）有限公司 | A kind of air gap control method of electromagnetic valve and this electromagnetic valve |
| CN207005412U (en) * | 2017-06-19 | 2018-02-13 | 万向钱潮股份有限公司 | The continuous normally closed solenoid valve of new automobile braking |
-
2018
- 2018-07-06 CN CN201810738330.9A patent/CN109931407A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203402182U (en) * | 2013-07-22 | 2014-01-22 | 浙江万向精工有限公司 | Normally open solenoid valve for car braking |
| CN106090266A (en) * | 2016-08-12 | 2016-11-09 | 简式国际汽车设计（北京）有限公司 | A kind of air gap control method of electromagnetic valve and this electromagnetic valve |
| CN207005412U (en) * | 2017-06-19 | 2018-02-13 | 万向钱潮股份有限公司 | The continuous normally closed solenoid valve of new automobile braking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531191A (en) * | 2021-07-14 | 2021-10-22 | 杭州群科荟科技有限公司 | Air gap magnetic conduction structure and gas solenoid valve thereof |
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| PB01 | Publication | ||
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Application publication date: 20190625 |