CN206159609U - A electromagnet for automobile engine variable valve timing system - Google Patents
A electromagnet for automobile engine variable valve timing system Download PDFInfo
- Publication number
- CN206159609U CN206159609U CN201621194658.1U CN201621194658U CN206159609U CN 206159609 U CN206159609 U CN 206159609U CN 201621194658 U CN201621194658 U CN 201621194658U CN 206159609 U CN206159609 U CN 206159609U
- Authority
- CN
- China
- Prior art keywords
- valve element
- electromagnet
- automobile engine
- pedestal
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides an electromagnet for automobile engine variable valve timing system, including the case subassembly of coaxial setting, base, separate magnetism inner cover and solenoid portion, solenoid portion includes skeleton and coil, framework sleeve establishes separate outside the magnetism inner cover, the coil winding is on the skeleton, the case subassembly with the base is established along the axial separate in the magnetism inner cover, the case subassembly includes the case and connects the ejector pin on the case, the base is close to the pyramis of one end for having the male cone (strobilus masculinus) of case, and be provided with and be used for acceping the portion of acceping of case, the axle center of base still is provided with the direction through -hole, ejector pin slidable sets up in the direction through -hole. The utility model provides a card phenomenon when volume an electromagnet for automobile engine variable valve timing system has prevented the case action is steadily spent highly, and it is smooth and easy that the solenoid valve opens and shuts the conversion.
Description
Technical field
The utility model is related to the VVT in automobile engine (VVT) field, particularly a kind of electricity
Magnet.
Background technology
VVT is VVT, is exactly under specific engine operating condition, by controlling IO Intake Valve Opens angle
In advance and postpone to adjust intake and exhaust amount and moment and change the size of valve overlap realizing increasing charge and effect
Rate, preferably organizes intake swirl, adjusts cylinder-firing pressure and residual waste gas quantity to obtain engine power, moment of torsion, row
Put, fuel economy, the improvement of the combination property such as comfortableness, so as to solve the properties of the fixed port timing engine of tradition
The technical contradiction mutually restricted between index.
In VVT systems the valve element of magnetic valve with move for the change of electric current.The principle of electromagnetism valve function is exactly valve
An electromagnet is filled on core, when electromagnet coil power, valve element is picked up, valve is opened, when not having electricity, valve element closes automatically
Close.Its Main Function is the amount for adjusting control into the chamber machine oil of VVT two.In existing VVT Solenoid Valve Technologies, it is currently used for
Magnetic valve in VVT systems can realize the opening and closing of valve, but open with close it is alternate with each other during uneven stability, start
Machine has obvious interim card when switching over, and reduces operational comfort, and for a long time whole valve core of the electromagnetic valve part is caused in the past
Irreversible damage.
Utility model content
For defect of the prior art, the utility model provide a kind of smoothness it is high for the variable gas of automobile engine
The electromagnet of door timing system.
Magnetic valve includes two parts, i.e. electromagnet segments and body portion in prior art, and inventor grinds through for a long time
Study carefully discovery, magnetic valve action interim card, jiggly reason are that mainly Distribution of Magnetic Field is uneven, are near one end of valve element in pedestal
Perpendicular to the end face of axis, when the magnetic line of force passes through the end face, magnetic resistance is larger, causes electromagnetic force to reduce, valve core movement to herein when
Generation Caton phenomenon.
The utility model is provided for the electromagnet of automobile engine VVT, including the valve being coaxially disposed
Core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion；The electromagnetic coil portion includes skeleton and coil, and the skeleton is set in
It is described outside magnetic inner cover, the coil is wrapped on skeleton；The core assembly and the pedestal are located at vertically described every magnetic
In inner cover；
The core assembly includes valve element and the push rod being connected on valve element；The pedestal is near one end of the valve element
Tapering with male cone (strobilus masculinus), and the resettlement section for housing the valve element is provided with, the axle center of the pedestal is additionally provided with guiding
Through hole, the push rod is slidably disposed in the guide through hole.
Further, the frustoconical bevel angle in the tapering is 30 ° to 60 °.
Further, the frustoconical bevel angle of the conical surface portion is 50.5 °.
Further, the range that the valve element is axially moveable is between 3 millimeters to 6 millimeters.
Further, the range that the valve element is axially moveable is 4 millimeters.
Further, the push rod is provided with steel ball away from one end of the valve element.
Further, the pedestal is provided with extension base portion away from one end of the valve element, it is described every magnetic inner cover away from institute
The one end for stating valve element is provided with cover portion in extension, and cover portion is clipped between the skeleton and the extension base portion in the extension, institute
State in extension and be provided with sealing ring between cover portion and the extension base portion.
Further, the material of the valve element is pure iron, and the material of the push rod is stainless steel.
The utility model is provided for the electromagnet of automobile engine VVT, including the valve being coaxially disposed
Core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion.The core assembly includes valve element and the push rod being connected on valve element.Line
After circle is powered, valve element and pedestal are magnetized, and pole orientation is consistent, the pole orientation of the opposite one end of valve element and pedestal conversely,
So as to mutually inhale with valve element drives push rod to move to pedestal direction.In the application, the pedestal is near one end of the valve element
The magnetic line of force that the surface of the tapering with male cone (strobilus masculinus), valve element and pedestal is formed through tapering male cone (strobilus masculinus), from the mistake that valve element is smoothed
Spend on pedestal, magnetic resistance is little, magnetic force is uniform, it is therefore prevented that Caton phenomenon during valve element action, and then make magnetic valve obtain folding conversion
It is more smooth.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by it is of the present utility model practice recognize.
Description of the drawings
In order to be illustrated more clearly that the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described.In all of the figs, it is similar
Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to actual ratios
Draw.
Fig. 1 is the axial sectional view of electromagnet in the embodiment of the utility model one；
Fig. 2 is every the structural representation of magnetic inner cover in Fig. 1；
Fig. 3 is the structural representation of pedestal in Fig. 1；
Fig. 4 is the corresponding relation figure of the push rod displacement and electromagnetic force drawn according to the research of inventor.
Specific embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
It should be noted that unless otherwise stated, technical term used in this application or scientific terminology should be this reality
The ordinary meaning understood with new one of ordinary skill in the art.
With reference to Fig. 1 and Fig. 3, in one embodiment, the utility model is provided for automobile engine VVT system
The electromagnet of system, including the core assembly 1, pedestal 2 being coaxially disposed, every magnetic inner cover 3 and electromagnetic coil portion 4；The solenoid
Portion 4 includes skeleton 41 and coil 42, and the skeleton 41 is set in described outside magnetic inner cover 3, and the coil 42 is wrapped in skeleton 41
On；The core assembly 1 and the pedestal 2 are located at vertically described in magnetic inner cover 3；
The core assembly 1 includes valve element 11 and the push rod 12 being connected on valve element 11；The pedestal 2 is near the valve element
11 one end is the tapering 21 with male cone (strobilus masculinus), and is provided with the resettlement section 24 for housing the valve element 11, the pedestal 2
Axle center is additionally provided with guide through hole 2211, and the push rod 12 is slidably disposed in the guide through hole 2211.
After coil 42 is powered, valve element 11 and pedestal 2 are magnetized, and pole orientation is consistent, valve element 11 and pedestal 2 it is opposite one
The pole orientation at end is conversely, so as to mutually inhale with valve element 11 drives push rod 12 to move to the direction of pedestal 2.In the application, the base
The magnetic line of force Jing that seat 2 is formed near the surface that one end of the valve element 11 is the tapering 21 with male cone (strobilus masculinus), valve element 11 and pedestal 2
Cross the male cone (strobilus masculinus) in tapering 21, from valve element 11 smooth it is excessive magnetic resistance is little on pedestal 2, magnetic force is uniform, it is therefore prevented that the action of valve element 11
When Caton phenomenon, and then make magnetic valve obtain folding conversion it is more smooth.
Specifically, the pedestal 2 includes tapering 21, pars intermedia 22 and the extension base portion 23 of integrally connected shaping, described
Pars intermedia 22 is provided with radial support portion 221, and the middle part in the radial support portion 221 is provided with guide through hole 2211, the push rod 12
Grafting enters in guide through hole 2211, and the axis of the right side of valve element 11 is provided with centre bore, and the left end of push rod 12 is press-fited by interference
Enter in the centre bore of the valve element 11.
Described is that hollow housing and left end are closed every magnetic inner cover 3, the left side for including being sequentially connected vertically every magnetic inner cover 3
Cover portion 34 in cover portion 31, middle cone face 32, right cover portion 33 and extension.Middle cone face 32 and the male cone (strobilus masculinus) in the tapering 21 of pedestal 2
There is the first cavity in laminating, the left cover portion 31, the first cavity constitutes the operation passage of valve element 11 with the resettlement section 24 of pedestal 2.
By the guiding and guide through hole 2211 pairs of the first cavity of left cover portion and the resettlement section 24 of pedestal 2 to valve element 11
The guiding of push rod 12, the axial direction for realizing valve element 11 and the i.e. core assembly 1 of push rod 12 is concentric, while realizing valve element 11 first
Balance is forced when moving reciprocatingly in cavity and the second cavity, is designed with reference to the tapering 21 of pedestal 2, make electromagnetic coil portion 4 defeated
The magnetic field for going out is presented as far as possible horizontal nature, and tends towards stability, and then it is more smooth to make magnetic valve obtain folding conversion.
In order to further increase the smoothness of magnetic valve folding, the present embodiment middle skeleton 41 is corresponding with the tapering 21 of pedestal 2
Position be provided with and the cone angle identical inner conical surface of the tapering 21.
Inventor has found through experimental study for many years, when the frustoconical bevel angle in tapering 21 is 30 ° to 60 °, magnetic valve operation
It is obviously reduced to Caton phenomenon during tapering 21, especially when taper is 50.5 °, smoothes out the most.
Further, inventor also has found that the working gas gap (range of valve element 11) of core assembly 1 is also to affect electricity
One key reason of magnet valve opening and closing movement stationarity.The size of electromagnetic force is affected between the size of working gas gap, if electromagnetism
Power is too small, the action of valve element 11 can be made insensitive or cannot action.With reference to Fig. 4, applicant increases simulation on the push rod of electromagnet
After the load pressure of working condition, change the dutycycle being powered on coil, adjust the shift motion of push rod, represent that difference is accounted in figure
Under sky ratio, the respective value of push rod displacement and electromagnetic force, when displacement is 4 millimeters, electromagnetic force reaches maximum, and negative
Load pressure is identical, and during less than 3 millimeters, electromagnetic force is less, and being likely to result in cannot promote valve core of the electromagnetic valve.Therefore, working gas gap can
During between 3 millimeters to 6 millimeters, preferably stroke distances and electromagnetic force are obtained, especially when working gas gap is 4 millimeters, electricity
Magnetic force reaches maximum.
Therefore in the present embodiment, the taper in the tapering 21 of pedestal 2 is 50.5 °, and the working gas gap of core assembly 1 is 4 millimeters.
Further, the push rod 12 is provided with steel ball 13 away from one end of the valve element 11.
The electromagnet of the application is mainly used in hydraulic valve, and in order to prevent hydraulic oil from entering inside electromagnet, the pedestal 2 is remote
Extension base portion 23 is provided with from one end of the valve element 11, cover portion is clipped in the skeleton 41 and the extension pedestal in the extension
Between portion 23, sealing ring is provided between cover portion and the extension base portion 23 in the extension.By cover portion in extension and base
2 pinch seal circles of seat, so as to prevent hydraulic oil from entering core assembly 1, affect the action of core assembly 1, damage electromagnet.
Further, the material of the valve element 11 is pure iron, and the material of the push rod 12 is stainless steel.The selection of material allows
Core assembly 1 possesses higher magnetic induction sensitivity, is made by the technique such as punching press and powder smelting, and low cost of manufacture can be with economy
Realize volume production.
Here, it is to be noted that, function, algorithm, method that the utility model is related to etc. are only the routine of prior art
Adaptability application.Therefore, the utility model, for the improvement of prior art, is substantially the annexation between hardware, rather than
Although it is related to some functions, algorithm, method for function, algorithm, method itself, namely the utility model, but and not comprising right
The improvement that function, algorithm, method itself is proposed.The utility model for function, algorithm, method description, be in order to more preferable
The utility model is illustrated, to be better understood from the utility model.
In the description of the present application, it is to be understood that term " on ", D score, "front", "rear", "left", "right", " water
It is flat ", " interior ", " outward ", etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description, rather than indicate or imply that the device or element of indication there must be specifically side
Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property or the implicit quantity for indicating indicated technical characteristic.In description of the present utility model, " multiple " are meant that two
More than, unless otherwise expressly limited specifically.
In specification of the present utility model, a large amount of details are illustrated.It is to be appreciated, however, that reality of the present utility model
Applying example can put into practice in the case of without these details.In some instances, known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this description.
In the description of this specification, specific features, structure, material or feature can be in any one or more embodiments
Or combine in an appropriate manner in example.Additionally, in the case of not conflicting, those skilled in the art can say this
The feature of different embodiments or example and different embodiments or example described in bright book is combined and combines.
Finally it should be noted that：Various embodiments above is only illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It still can modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent；And these are changed or are replaced, the essence for not making appropriate technical solution departs from this practicality newly
The scope of each embodiment technical scheme of type, it all should cover in the middle of the scope of claim of the present utility model and specification.
Claims (8)
1. a kind of electromagnet for automobile engine VVT, it is characterised in that including the valve being coaxially disposed
Core assembly, pedestal, every magnetic inner cover and electromagnetic coil portion；The electromagnetic coil portion includes skeleton and coil, and the skeleton is set in
It is described outside magnetic inner cover, the coil is wrapped on skeleton；The core assembly and the pedestal are located at vertically described every magnetic
In inner cover；
The core assembly includes valve element and the push rod being connected on valve element；The pedestal near one end of the valve element be with
The tapering of male cone (strobilus masculinus), and the resettlement section for housing the valve element is provided with, the axle center of the pedestal is additionally provided with guide through hole,
The push rod is slidably disposed in the guide through hole.
2. the electromagnet for automobile engine VVT according to claim 1, it is characterised in that institute
The frustoconical bevel angle for stating tapering is 30 ° to 60 °.
3. the electromagnet for automobile engine VVT according to claim 2, it is characterised in that institute
The frustoconical bevel angle for stating tapering is 50.5 °.
4. the electromagnet for automobile engine VVT according to claim 1, it is characterised in that institute
It is between 3 millimeters to 6 millimeters to state the range that valve element is axially moveable.
5. the electromagnet for automobile engine VVT according to claim 4, it is characterised in that institute
It is 4 millimeters to state the range that valve element is axially moveable.
6. the electromagnet for automobile engine VVT according to claim 1, it is characterised in that institute
One end that push rod is stated away from the valve element is provided with steel ball.
7. the electromagnet for automobile engine VVT according to claim 1, it is characterised in that institute
State pedestal and be provided with extension base portion away from one end of the valve element, it is described to be provided with extension away from one end of the valve element every magnetic inner cover
Interior cover portion, cover portion is clipped between the skeleton and the extension base portion in the extension, cover portion and described outer in the extension
Prolong and be provided between base portion sealing ring.
8. the electromagnet for automobile engine VVT according to claim 1, it is characterised in that institute
The material for stating valve element is pure iron, and the material of the push rod is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194658.1U CN206159609U (en) | 2016-10-28 | 2016-10-28 | A electromagnet for automobile engine variable valve timing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194658.1U CN206159609U (en) | 2016-10-28 | 2016-10-28 | A electromagnet for automobile engine variable valve timing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159609U true CN206159609U (en) | 2017-05-10 |
Family
ID=58657855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621194658.1U Active CN206159609U (en) | 2016-10-28 | 2016-10-28 | A electromagnet for automobile engine variable valve timing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439170A (en) * | 2016-10-28 | 2017-02-22 | 江苏海龙电器有限公司 | Electromagnet for variable valve timing system of automobile engine |
-
2016
- 2016-10-28 CN CN201621194658.1U patent/CN206159609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439170A (en) * | 2016-10-28 | 2017-02-22 | 江苏海龙电器有限公司 | Electromagnet for variable valve timing system of automobile engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012118211A1 (en) | Damper with variable damping force | |
| CN105952953B (en) | A kind of response time adjustable pilot solenoid valve structure | |
| CN105387261B (en) | A kind of step direct-acting type electromagnetic activation valve of wide operating range | |
| CN106439170A (en) | Electromagnet for variable valve timing system of automobile engine | |
| CN106762003A (en) | For the electromagnetic hydraulic valve of camshaft phase regulation | |
| CN106415088A (en) | Extraction valve | |
| CN103410981B (en) | Parallel valve core type high-pressure electromagnetic valve | |
| CN206159609U (en) | A electromagnet for automobile engine variable valve timing system | |
| CN101696740B (en) | Switch valve | |
| CN204226797U (en) | A kind of fork truck gearshift solenoid valve | |
| CN207377616U (en) | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure | |
| CN106050497B (en) | Variable control self-locking electromagnetic fuel injector | |
| CN106837456A (en) | Vvt | |
| CN103375453B (en) | A kind of lightweight fast-response solenoid valve | |
| CN202326868U (en) | Electromagnetic buffer | |
| CN103851226A (en) | High speed high flow self-resetting electromagnetic valve | |
| CN205478035U (en) | High pressure fuel solenoid valve | |
| CN203477329U (en) | High-pressure solenoid valve of parallel valve core type | |
| CN203796643U (en) | Adjustable throttling hydraulic lock of coal mining machine | |
| CN206329381U (en) | Engine piston cools down magnetic valve controller | |
| CN206092561U (en) | Automatically controlled governing valve of stack formula with it is not enough to overcome electromagnetism thrust | |
| CN211598890U (en) | Proportional flow valve for high-pressure common rail pump of medium-heavy diesel engine | |
| CN207629168U (en) | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine | |
| CN209943651U (en) | Integrated electromagnetic head structure | |
| CN206903773U (en) | A kind of interior guiding fuel gas injection valve of bypass type mixed admission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |