CN206754548U - A kind of magnetic valve - Google Patents
A kind of magnetic valve Download PDFInfo
- Publication number
- CN206754548U CN206754548U CN201720261822.4U CN201720261822U CN206754548U CN 206754548 U CN206754548 U CN 206754548U CN 201720261822 U CN201720261822 U CN 201720261822U CN 206754548 U CN206754548 U CN 206754548U
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- China
- Prior art keywords
- magnetic valve
- plunger
- travel switch
- valve
- steering
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Abstract
The utility model provides a kind of magnetic valve, including valve body and plunger, in addition to is used on magnet plunger motion path by the travel switch of magnet plunger triggering.The utility model adds travel switch, can determine whether magnetic valve fails by the voltage change for detecting travel switch circuit.Magnetic valve design is simple, and functional reliability is good, it is ensured that can be detected in time in the case of electromagnetism defective valve, consequently facilitating the system residing for magnetic valve makes remedial measure in time.
Description
Technical field
The utility model belongs to Solenoid Valve Technology field, and in particular to a kind of magnetic valve.
Background technology
Magnetic valve extensive use in the supply of the fluids such as liquid, gas, transmission, control and dynamical system, magnetic valve generally according to
The purpose that control is turned on and ended to valve is realized by electromagnetic attraction, gas pressure and spring force etc., is the pass of whole system
Key parts.
Hydraulic power-assist steering system provides power resources using engine driving steering pump, the machinery that engine is rotated
The hydraulic energy for turning to fluid can be converted into, power steering is provided by power steering stgear, driver is reduced and is applied to steering
Steering force on disk.
Electro-Hydraulic Power Steering System according to the difference of control mode, can be divided into counter-force control formula, flow control formula and
Valve gain control standard three types.
The electric hydraulic power-assisted steering system of automobile, it is that traditional steering pump driven by the engine is changed to by turning to
Motor drives steering pump, uses power battery pack or battery independently of engine to be powered for steering motor, uses simultaneously
Controller controls steering motor according to the running status (whether engine is opened, turning velocity size, speed size) of vehicle
Rotating speed, energy-saving effect is improved, while realize the characteristic that steering force changes with speed and turning velocity.
The Electro-Hydraulic Power Steering System of the counter-force control formula of automobile, vehicle speed sensor pass current vehicle speed running situation
Turning control cell ECU is passed, the average current that turning control cell ECU makes to be arranged on the electromagnetic valve coil in fluid pressure line increases
Big or reduction, the increase of average aperture or reduction of magnetic valve, so as to change the capacity of returns of shunting flow of pressurized, acts on counter-force plunger
Back pressure change, then cause light steering during low speed or stronger steering " road feel " formed during high speed.
But if electromagnetism defective valve, without control signal on magnetic valve, it will keep maximum steering " road feel ", make original
Direction is more heavy when ground or low speed turn to；Under same speed, with the increase of turning velocity, due to turning control cell control
System is constant by the average current of electromagnetic valve coil, and the average aperture of magnetic valve is also constant, and steering force will not be with turning velocity
Increase and lower, add degree of fatigue during fast steering, turning to comfort level reduces.
Utility model content
The purpose of this utility model is to provide a kind of magnetic valve, to solve not judging whether solenoid signal fails
The problem of.
In order to solve the above technical problems, the technical solution of the utility model is：
The utility model provides a kind of magnetic valve, including valve body and plunger, in addition to is moved installed in magnet plunger
It is used for the travel switch triggered by magnet plunger on path.
Further, the magnetic valve is the electromagnetism open in usual that magnet plunger is held in normally open position by spring
Valve, the travel switch include switch contact, and switch contact contacts with the magnet plunger of normally open position.
Further, switch contact has the loop where conducting travel switch when magnet plunger is in normally open position
Closing position and the sub-gate position for loop where disconnecting travel switch when magnet plunger acts.
Further, supporting sleeve is provided with spring, loop where travel switch includes being arranged at the supporting sleeve
On wire, supporting sleeve upper end is provided with turn edge, and switch contact is arranged at the downside of turn edge, and wire has positioned at described
In turn edge for the contact that is contacted with the switch contact, magnet plunger has through turn edge and realizing to be opened with described
Close the connected projection of contact.
Further, the plunger includes being oriented to the piston body coordinated with valve body, and the piston body passes through transition shoulder
It is connected with projection, spring is used to jack up transition shoulder.
The beneficial effects of the utility model：
Magnetic valve of the present utility model, adds travel switch, by the voltage change for detecting travel switch circuit
Judge whether magnetic valve fails.Magnetic valve design is simple, and functional reliability is good, it is ensured that the energy in the case of electromagnetism defective valve
It is enough to detect in time, consequently facilitating the system residing for magnetic valve makes remedial measure in time.
Brief description of the drawings
Fig. 1 is the composition structure chart of the electronic and automatically controlled two-in-one hydraulic power-assist steering system of counter-force control formula；
Fig. 2 is the magnetic valve schematic diagram for not increasing travel switch；
Fig. 3 is schematic diagram when the magnetic valve of increase travel switch is in normally open；
Fig. 4 is schematic diagram when the hollow plunger for the magnetic valve for increasing travel switch moves downward.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and embodiment, to this
Utility model is described in further detail.
Turned below so that magnetic valve of the present utility model is applied into the automatically controlled and electronic two-in-one hydraulic booster of counter-force control formula
Illustrated exemplified by into system.
As shown in figure 1, the automatically controlled and electronic two-in-one hydraulic power-assist steering system of counter-force control formula mainly by steering wheel 1, turn
To tubing string 2, in-line power steering 3 (comprising steering control valve 4, manual steering gear 5, actuator cylinder 6, oil pressure counter force chamber 7,
Counter-force plunger 8), steering reservoir 9, electric powered steering oil pump 10, steering oil pipe 11, flow divider 12 and fixed restriction aperture 13, electromagnetism
Valve 14, turning control cell ECU 15, vehicle speed sensor 16 etc. form, and main structure is in course changing control rotary valve spool
Front end has installed two pairs of counter-force plungers additional.It is provided with steering angular velocity sensor 17 on steering column 2, steering angular velocity during steering
Steering angular velocity is converted into corresponding electric signal and is sent to turning control cell ECU by sensor.Magnetic valve 14 uses this reality
With the new magnetic valve for setting up travel switch, turning control cell ECU 15 is become by detecting the voltage of travel switch circuit
Change, judge whether magnetic valve fails.
For the system in normal work, steering motor is operated in the higher steering range of efficiency, realizes electric-controlled hydraulic power-assisted
The function of steering, that is, it is operated under automatically controlled mode of operation；The magnetic valve switched using tape travel, turning control cell ECU can be with
Judge whether magnetic valve fails；When electromagnetism defective valve can not realize electric-controlled hydraulic power-assisted steering function, turning control cell ECU
According to speed, the size of steering angular velocity control steering motor variable frequency work, electric hydraulic power-assisted steering function is realized, that is, is worked
Under electric mode.So the electronic and automatically controlled two-in-one hydraulic power-assist steering system can be real under different working condition
Existing " low speed steering is light, and enhancing road feel (i.e. power-assisted reduces) avoids unstable at a high speed ", while save, efficiently.
Generally, transformation of the automatically controlled mode of operation to electric mode is the electricity for judging to be arranged in fluid pressure line
Whether magnet valve being capable of normal work.If magnetic valve can be according to turning control cell ECU signal come normal work, system work
Under automatically controlled mode of operation；When finding electromagnetism defective valve, system switchs to electric mode.Emphasis of the present utility model is
Judged by setting up travel switch in magnetic valve.
Fig. 2 is the magnetic valve for not increasing travel switch, and magnetic valve includes valve body 18, the hollow plunger being arranged in valve body 18
19, and the magnet coil 20 being arranged on outside valve body 18, hollow plunger 19 include being oriented to valve body 18 piston body 21 that coordinates and
Projection 22.Piston body 21 is connected by transition shoulder 23 with projection 22, and spring 24 is used to jack up transition shoulder 23.The magnetic valve passes through
Hollow plunger 19 is held in normally open by spring 24, is normally open type magnetic valve.It is provided with hollow plunger 19 and matches somebody with somebody with valve body 18
The small valve port 25 and big valve port 26 closed.Pumped by hollow plunger 19 so that the aperture of magnetic valve changes, i.e.,
Changed from flow of the small valve port through excessive valve port, so as to control hydraulic power-assisted steering.
Fig. 3 is the magnetic valve of increase travel switch, increases travel switch on the basis of Fig. 2.Travel switch includes switch
Contact 27, under normal circumstances, switch contact 27 and the contact of the projection 22 of the hollow plunger 19 of the magnetic valve of normally open position.
Switch contact has closing position, for being returned when the hollow plunger 19 of magnetic valve is in normally open position where conducting travel switch
Road；Also there is sub-gate position, for loop where disconnecting travel switch when the hollow plunger 19 of magnetic valve acts.In spring 24
Supporting sleeve 28 is provided with, loop where travel switch includes the wire 29 being arranged in supporting sleeve 28, and supporting sleeve 28 is used
In support wire 29.The upper end of supporting sleeve 28 is provided with turn edge, and the switch contact 27 of travel switch is arranged under turn edge
Side, wire 29 have in the turn edge for the contact that is contacted with switch contact 27, the projection of the hollow plunger of magnetic valve
22 realized through turn edge and by contact contact with switch contact 27 it is connected.Loop where travel switch also includes being arranged at electricity
Wire 30 and wire 31 outside magnet valve valve body 18, wire 31 are connected with ECU out-put supply positive poles, and wire 30 is grounded, and the circuit
In be provided with diode 32, the anode of diode 32 is connected to the ground.
In state as shown in Figure 3, loop where travel switch is in the conduction state, now ECU collection voltages signal,
Detectable " height " voltage.When giving magnetic valve action signal, when hollow plunger moves downward, the projection 22 of hollow plunger can drive
Contact (being contacted with the switch contact 27 of travel switch) downwards, so that loop disconnects where travel switch, is now adopted by ECU
During collecting voltage signal, voltage signal is " low ", as shown in Figure 4.If giving magnetic valve action signal, pass through ECU collection voltages signals
When, it is still able to collect " height " voltage signal, then illustrates electromagnetism defective valve.
The present embodiment is that the magnetic valve is applied in automatically controlled and electronic two-in-one hydraulic power-assist steering system, but should
Point out, magnetic valve of the present utility model can also be applied to other field, as long as the travel switch set up by the magnetic valve come
Judge whether magnetic valve fails, all within the scope of protection of the utility model.
Although content of the present utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to limitation of the present utility model.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the present utility model all will be apparent.Therefore, the scope of protection of the utility model should be by appended
Claim limit.
Claims (5)
1. a kind of magnetic valve, including valve body and magnet plunger, it is characterised in that also include being arranged on magnet plunger motion road
It is used for the travel switch triggered by magnet plunger on footpath.
2. magnetic valve according to claim 1, it is characterised in that the magnetic valve is to be protected magnet plunger by spring
The normally open type magnetic valve of normally open position is held in, the travel switch includes the electromagnetism of switch contact, switch contact and normally open position
Valve plunger contacts.
3. magnetic valve according to claim 2, it is characterised in that switch contact has is in normally opened position in magnet plunger
The closing position in travel switch place loop is turned on when putting and for loop where disconnecting travel switch when magnet plunger acts
Sub-gate position.
4. magnetic valve according to claim 3, it is characterised in that supporting sleeve, travel switch place are provided with spring
Loop includes the wire being arranged on the supporting sleeve, and supporting sleeve upper end is provided with turn edge, and switch contact is arranged at interior
The downside to turn edge, wire have in the turn edge for the contact that is contacted with the switch contact, magnet plunger
With through turn edge and realizing the projection for contacting with the switch contact and being connected.
5. magnetic valve according to claim 4, it is characterised in that the plunger includes being oriented to the plunger master coordinated with valve body
Body, the piston body are connected by transition shoulder with projection, and spring is used to jack up transition shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261822.4U CN206754548U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261822.4U CN206754548U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754548U true CN206754548U (en) | 2017-12-15 |
Family
ID=60609042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720261822.4U Active CN206754548U (en) | 2017-03-16 | 2017-03-16 | A kind of magnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626465A (en) * | 2017-03-16 | 2018-10-09 | 郑州宇通客车股份有限公司 | Solenoid valve |
| CN108709733A (en) * | 2018-08-06 | 2018-10-26 | 广东万家乐燃气具有限公司 | A kind of solenoid travel and air-tightness detection device |
-
2017
- 2017-03-16 CN CN201720261822.4U patent/CN206754548U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626465A (en) * | 2017-03-16 | 2018-10-09 | 郑州宇通客车股份有限公司 | Solenoid valve |
| CN108709733A (en) * | 2018-08-06 | 2018-10-26 | 广东万家乐燃气具有限公司 | A kind of solenoid travel and air-tightness detection device |
| CN108709733B (en) * | 2018-08-06 | 2024-04-05 | 广东万家乐燃气具有限公司 | Solenoid valve stroke and gas tightness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
|
| CP03 | Change of name, title or address |