CN106024265A - Electromagnet - Google Patents
Electromagnet Download PDFInfo
- Publication number
- CN106024265A CN106024265A CN201610584968.2A CN201610584968A CN106024265A CN 106024265 A CN106024265 A CN 106024265A CN 201610584968 A CN201610584968 A CN 201610584968A CN 106024265 A CN106024265 A CN 106024265A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- electric magnet
- yoke bush
- shell
- fairlead
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/126—Supporting or mounting
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnets (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides an electromagnet which comprises a shell (5), a framework (6), a front yoke sleeve (8), a back yoke sleeve (10) and a magnetic core (11), wherein the shell is fixedly connected with the front yoke sleeve (8); a coil (4) is wound in a die cavity of the framework (6); the back yoke sleeve (10) is installed in an inner hole in the framework (6); the magnetic core (11) is provided with a plurality of guide grooves (111) distributed around the magnetic core (11); ball bodies (12) are installed in the guide grooves (111); and the magnetic core moves relative to the back yoke sleeve (10) through the ball bodies (12). The ball bodies form the bearing points for the motion of the magnetic core, the magnetic core does not directly contact the back yoke sleeve or guide sleeves, and rolling friction is formed due to the contact of the ball bodies, thereby lowering the motion resistance of the magnetic core, enhancing the motion sensitivity and motion stability of the magnetic core, and effectively enhancing the response speed and control stability of the electromagnet.
Description
Technical field
The present invention relates to electric magnet technical field, especially relate to be applied in engine variable cam timing system put
A kind of electric magnet of formula control valve.
Background technology
Control valve in existing engine variable cam timing system mainly has two kinds: side-mounted control valve and middle
Control valve.Wherein, the mainly side-mounted control valve being widely used, middle control valve is in side-mounted control valve
The technology upgrading carried out above.
Compared to side-mounted control valve, middle control valve has the advantage that the valve body in (1), middle control valve
Part can and phaser between distance closer to, thus oil circuit control is shorter, and therefore, it is in response speed and control
Side-mounted control valve all it is better than in stability.(2), directly instead of phaser due to the valve body of middle control valve
Screw is installed, eliminates cylinder cap installing hole and oil duct, thus reduce electromotor manufacturing cost.Therefore, at electromotor
In variable cam timing system, the application of middle control valve will increasingly come into one's own.But, existing middle
Response speed and the control stability of the electric magnet in control valve are poor, thus cause engine variable cam timing system
Response speed and control stability decrease, make engine performance deteriorate；It addition, existing middle control valve
Assembly technology the most more complicated, higher to the requirement on machining accuracy of parts, thus cause the rising of production cost.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existed for prior art, it is provided that a kind of response speed and control
The electric magnet that stability processed is the most excellent.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of electric magnet, including shell, bone
Frame, front yoke bush and rear yoke bush and magnetic core, described shell is fixing with front yoke bush to be connected, at matrix type intracavity coiling,
Described rear yoke bush is installed on skeleton endoporus, offers the gathering sill of some ring magnetic cores distribution on magnetic core, pacifies in gathering sill
Dress spin body, described magnetic core is moved relative to rear yoke bush by spin body.
Preferably, also include that fairlead, described magnetic core are installed on fairlead inner chamber, and magnetic core moves relative to rear yoke bush
Time, form rolling friction between described spin body and fairlead internal chamber wall.
Preferably, Hermetical connecting structure is formed between described fairlead and shell.
Preferably, form housing by injection between described fairlead, rear yoke bush, coil, skeleton, shell and form
The o of integral structure.
Preferably, described housing consolidates installed part, described installed part arranges installing hole.
Preferably, described installed part arranges locating notch.
Preferably, described shell arranges anticreep barb.
Preferably, described rear yoke bush offered glue breach.
Preferably, described front yoke bush is offered several and first cooling down hole of being distributed ringwise.
Preferably, described magnetic core is offered second cool down hole.
Compared with prior art, the invention has the beneficial effects as follows: by offering leading of some ring magnetic cores distribution on magnetic core
To groove, and in gathering sill install spin body, under magnetic core is at electromagnetic force relative to front yoke bush, after yoke bush motion
Time, several strong points, and magnetic will be formed by spin body between magnetic core and rear yoke bush or between magnetic core and fairlead
Core is to be contacted with each other with rear yoke bush by spin body or contacted with each other with fairlead by spin body and form rolling and rub
Wipe, therefore, make the most not occur between magnetic core and rear yoke bush or between magnetic core and fairlead directly by arranging spin body
Contact, i.e. magnetic core are moved relative to rear yoke bush by spin body, such that it is able to improve autokinesis and the fortune of magnetic core
Dynamic stability, and the frictional resistance that magnetic core is at the volley is less, and then drastically increase the response speed of electric magnet
And control stability.
Accompanying drawing explanation
Fig. 1 is the structural map of a kind of electric magnet of the present invention.
Fig. 2 is the sectional view of the installed part in Fig. 1.
Fig. 3 is the sectional view of the shell in Fig. 1.
Fig. 4 is the sectional view of the front yoke bush in Fig. 1.
Fig. 5 is the side view of the front yoke bush shown in Fig. 4.
Fig. 6 is the top view of the rear yoke bush in Fig. 1.
Fig. 7 is the sectional view of the magnetic core in Fig. 1.
Fig. 8 is the side view of the magnetic core shown in Fig. 7.
Fig. 9 is the assembling schematic diagram of a kind of electric magnet of the present invention.
Labelling in figure: 1-housing, 2-installed part, 3-sealing ring, 4-coil, 5-shell, 6-skeleton, 7-magnetic core axle,
Yoke bush before 8-, 9-fairlead, yoke bush after 10-, 11-magnetic core, 12-spin body, 13-hood, in 14-electromotor
Chamber, 21-locating notch, 51-anticreep barb, 81-first order endoporus, 82-second level endoporus, 83-third level endoporus,
84-first cools down hole, and 101-crosses glue breach, 111-gathering sill, 112-magnetic core axle installing hole, and 113-second cools down hole.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and be embodied as
The present invention is described in detail for example.Should be appreciated that specific embodiment described herein only in order to explain the present invention,
It is not intended to limit the present invention.
Electric magnet as shown in Figure 1, mainly includes shell 5, skeleton 6, front yoke bush 8 and rear yoke bush 10 and magnetic core
11, wherein, the structure of described shell 5 is cup-like structure as shown in Figure 3, offers installation through hole bottom shell 5；
The overall structure of described front yoke bush 8 is T-shaped structure as shown in Figure 4, offers three grades of stepped holes in front yoke bush 8,
It is first order endoporus 81, second level endoporus 82 and third level endoporus 83 respectively, front yoke bush 8 also offers several
And first be distributed ringwise cool down hole 84, as it is shown in figure 5, the relatively small end of described front yoke bush 8 runs through shell 5
The installation through hole of bottom, and form a fixed connection between the relatively large end of front yoke bush 8 and shell 5；Many by arranging
Individual first cools down hole 84, the installation operation of yoke bush 8, the efficiency of assembling of yoke bush 8 before improving before can facilitating.Described bone
Frame 6 is installed in the die cavity that shell 5 and rear yoke bush 10 are formed, coiling 4 in skeleton 6 die cavity, described after
Yoke bush 10 cross section is L-shaped, and is installed on skeleton 6 endoporus.
As shown in Figure 7, Figure 8, the center portion thereof offers the magnetic for fixedly mounting magnetic core axle 7 to the structure of described magnetic core 11
Mandrel installing hole 112, one end of described magnetic core axle 7 fixed by grafting between magnetic core axle installing hole 112 and magnetic core 11,
And the other end of magnetic core axle 7 is in the first order endoporus 81 in front yoke bush 8, second level endoporus 82 and the third level
Front yoke bush 8 is exposed to, as shown in Figure 1 behind hole 83.Ring magnetic core 11 excircle direction is offered some gathering sills
111, a spin body 12 is at least installed in each gathering sill 111；Magnetic core axle installing hole 112 on magnetic core 11
Side is also offered second and is cooled down hole 113, and described second cools down hole 113 semicircular in shape, but is not limited to semicircle, it is also possible to
It is that other can have the geometry of function of cooling down；It addition, described second cool down hole 113 can with on magnetic core 11
Magnetic core axle installing hole 112 is mutually communicated, but is not limited to be connected through with magnetic core axle installing hole 112, it is also possible to be to arrange
Other any position at magnetic core 11 end face.
Described magnetic core 11 is arranged in the die cavity being collectively forming by shell 5, front yoke bush 8, skeleton 6, rear yoke bush 10,
And magnetic core 11 can move relative to front yoke bush 8, rear yoke bush 10 under electromagnetic force.When magnetic core 11 is in electromagnetic force
When moving relative to front yoke bush 8, rear yoke bush 10 under effect, owing to passing through spin body between magnetic core 11 and rear yoke bush 10
12 define several strong points, and magnetic core 11 is contacted with each other by spin body 12 and rear yoke bush 10 and forms rolling
Friction, so that do not occur directly to contact between magnetic core 11 with rear yoke bush 10, i.e. magnetic core 11 is by spin body
12 move relative to rear yoke bush 10, so can improve autokinesis and the kinetic stability of magnetic core 11, and magnetic core
11 frictional resistance at the volley are less, therefore, it can be greatly enhanced the response speed of electric magnet and control stability.
Owing to spin body 12 generally uses steel ball, it rubs because contacting with each other with rear yoke bush 10 in magnetic core 11 motor process
Wipe and easily cause the hyperkinesia abrasion of rear yoke bush 10, thus reduce the service life of electric magnet.To this end, such as Fig. 1
Shown in, the fairlead 9 that cup-shaped structure is set, described fairlead 9 can be increased between magnetic core 11 and rear yoke bush 10
Inner chamber together form, with three grades of stepped holes in front yoke bush 8, the die cavity installed for magnetic core 11, move, and makes magnetic core 11
The assembly formed with magnetic core axle 7, spin body 12 can move in the space that described die cavity is limited, and passes through the
Matched in clearance is formed, to ensure that magnetic core axle 7 can relative to front yoke bush 8 freely between three grades of endoporus 83 and magnetic core axle 7
Motion.Described magnetic core 11 is installed on fairlead 9 inner chamber, when magnetic core 11 moves relative to rear yoke bush 10, and described rolling
Rolling friction is formed between spheroid 12 and fairlead 9 internal chamber wall.
When moving relative to front yoke bush 8, rear yoke bush 10 under magnetic core 11 is at electromagnetic force, magnetic core 11 and fairlead
Several strong points will be formed by spin body 12 between 9, and magnetic core 11 will be mutual with fairlead 9 by spin body 12
Contact and form rolling friction, so that do not occur between magnetic core 11 with fairlead 9 directly to contact, i.e. magnetic core 11
Moved relative to rear yoke bush 10 by spin body 12, such that it is able to improve autokinesis and the motion stabilization of magnetic core 11
Property, and the frictional resistance that magnetic core 11 is at the volley is less, therefore, drastically increase electric magnet response speed and
Control stability；Meanwhile, by arranging fairlead 9, it is also possible to alleviate the fretting wear of rear yoke bush 10, be conducive to carrying
The service life of high electric magnet.
The assembly or disassembly of electric magnet for convenience, can by coil 4, shell 5, skeleton 6 and fairlead 9 and after
Form the o of integral structure by injection between yoke bush 10, by forming integral structure, not only make
The structure of electric magnet is compacter, functional reliability is higher, and is convenient to mount and dismount, and processing cost is lower.Note therein
Mould part and form housing 1, housing 1 can also consolidate installed part 2, described installed part 2 arranges installing hole, with
The installation operation of convenient electromagnetic ferrum；Described installed part 2 generally selects bolt washer, and bolt washer consolidation is installed
Flange face in housing 1.In order to improve the bonding strength between installed part 2 and housing 1, can be at installed part 2
Offer the anticreep groove of annular on outer circumference surface, the locating notch 21 disconnecting prevention structure as installed part 2 of annular be i.e. set,
As shown in Figure 2；Described locating notch 21 can also use other shape and structure that can realize this function, as pit,
Circular holes etc., form disconnecting prevention structure by arranging locating notch 21 on installed part 2, acutely can be shaken at electric magnet
Move or prevent installed part 2 from getting loose with housing 1 in the case of external impacts.
As it is shown on figure 3, described shell 5 is cup-shaped, the cup-mouth end at shell 5 arranges anticreep barb 51 as shell
The disconnecting prevention structure of 5, described anticreep barb 51 can be the cup-mouth end of shell 5 to be carried out outside flanging process and is formed,
As it is shown on figure 3, but be also not necessarily limited to the cup-mouth end flanging formation of shell 5, it is also possible to it is to use other can realize this function
Shape and structure, as lateral the increasing at shell 5 arranges breach, circular hole etc., can have by arranging anticreep barb 51
Prevent shell 5 from getting loose in the case of electric magnet is by high vibration or external impacts and between housing 1 to effect existing
As.As shown in Fig. 1, Fig. 6, the cross section of described rear yoke bush 10 is L-shaped, offers several in its bottom and crosses glue
Breach 101, described glue breach 101 of crossing takes the shape of the letter U, but is not limited to U-shaped, it is also possible to be square, circle, rectangle,
Triangle, or other disclosure satisfy that the geometry of glue function.By arranging glue breach 101, in injection
When forming housing 1, the injection molding material of molten state can be made to accelerate to be entered by the gap between rear yoke bush 10 and shell 5
To skeleton 6 inner chamber, improve housing 1 shaping speed, it is ensured that the connection reliability between the associated member of electric magnet.
In engine variable cam timing system, as it is shown in figure 9, above-mentioned electric magnet is by installed part 2 thereon
It is connected fixing, in order to improve the sealing between the housing 1 of electric magnet and hood 13 with between hood 13
Can, installation sealing ring 3 can be socketed on the outer circumference surface of the shell 5 of electric magnet.Described sealing ring 3 uses O
RunddichtringO, but it is not limited to O RunddichtringO, it is also possible to it is other any sealing ring with sealing function.
It addition, preferably form Hermetical connecting structure between fairlead 9 and shell 5 in electric magnet, specifically, institute
State and can form Hermetical connecting structure by welding manner between the arrival end of fairlead 9 and shell 5, but be not limited to weldering
Connect mode, it is also possible to be to make to be formed between fairlead 9 arrival end and shell 5 by bonding or other connected mode
Hermetical connecting structure.When the machine oil in engine inner chamber 14 is after penetrating into fairlead 9 inner chamber, due to leading in electric magnet
To forming Hermetical connecting structure between set 9 and shell 5, therefore, it can the machine being effectively prevented from fairlead 9 inner chamber
The sealing that oil penetrates into position, sealing ring 3 place through the connecting portion fairlead 9 and shell 5 and causes is lost
Effect.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that
All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included in this
Within bright protection domain.
Claims (10)
1. an electric magnet, including shell (5), skeleton (6), front yoke bush (8) and rear yoke bush (10) and magnetic
Core (11), described shell (5) is fixing with front yoke bush (8) to be connected, coiling (4) in skeleton (6) die cavity,
Described rear yoke bush (10) is installed on skeleton (6) endoporus, it is characterised in that: described magnetic core offers some rings on (11)
The gathering sill (111) that magnetic core (11) is distributed, installs spin body (12), described magnetic core (11) in gathering sill (111)
Moved relative to rear yoke bush (10) by spin body (12).
A kind of electric magnet the most according to claim 1, it is characterised in that: also include fairlead (9), described magnetic
Core (11) is installed on fairlead (9) inner chamber, and when magnetic core (11) moves relative to rear yoke bush (10), described rolling
Rolling friction is formed between spheroid (12) and fairlead (9) internal chamber wall.
A kind of electric magnet the most according to claim 2, it is characterised in that: described fairlead (9) and shell
(5) Hermetical connecting structure is formed between.
4. according to a kind of electric magnet described in claim 2 or 3, it is characterised in that: described fairlead (9), after
Form housing (1) by injection between yoke bush (10), coil (4), skeleton (6), shell (5) and form one
Change the o of structure.
A kind of electric magnet the most according to claim 4, it is characterised in that: consolidate peace on described housing (1)
Piece installing (2), described installed part arranges installing hole on (2).
A kind of electric magnet the most according to claim 5, it is characterised in that: described installed part (2) is upper to be arranged
Locating notch (21).
A kind of electric magnet the most according to claim 4, it is characterised in that: arrange anti-on described shell (5)
De-barb (51).
A kind of electric magnet the most according to claim 4, it is characterised in that: offer in described rear yoke bush (10)
Cross glue breach (101).
9. according to a kind of electric magnet described in any one of claim 1-3, it is characterised in that: described front yoke bush (8)
On offer several and first cooling down hole (84) of being distributed ringwise.
10. according to a kind of electric magnet described in any one of claim 1-3, it is characterised in that: described magnetic core (11)
On offer second and cool down hole (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584968.2A CN106024265B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584968.2A CN106024265B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106024265A true CN106024265A (en) | 2016-10-12 |
| CN106024265B CN106024265B (en) | 2018-01-02 |
Family
ID=57116287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610584968.2A Active CN106024265B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106024265B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099170A (en) * | 2017-06-21 | 2018-12-28 | 大陆汽车电子(芜湖)有限公司 | Compressed gas by-passing valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012163130A (en) * | 2011-02-04 | 2012-08-30 | Denso Corp | Electromagnetic valve |
| CN202561213U (en) * | 2012-04-13 | 2012-11-28 | 绵阳富临精工机械股份有限公司 | Actuating mechanism electromagnetic valve of automobile electronic control system |
| CN203499748U (en) * | 2013-09-27 | 2014-03-26 | 绵阳富临精工机械股份有限公司 | Centrally-mounted VVT system |
| CN104454061A (en) * | 2014-11-20 | 2015-03-25 | 绵阳富临精工机械股份有限公司 | Engine oil control valve with guiding structure |
| CN205900226U (en) * | 2016-07-22 | 2017-01-18 | 绵阳富临精工机械股份有限公司 | Electromagnet |
-
2016
- 2016-07-22 CN CN201610584968.2A patent/CN106024265B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012163130A (en) * | 2011-02-04 | 2012-08-30 | Denso Corp | Electromagnetic valve |
| CN202561213U (en) * | 2012-04-13 | 2012-11-28 | 绵阳富临精工机械股份有限公司 | Actuating mechanism electromagnetic valve of automobile electronic control system |
| CN203499748U (en) * | 2013-09-27 | 2014-03-26 | 绵阳富临精工机械股份有限公司 | Centrally-mounted VVT system |
| CN104454061A (en) * | 2014-11-20 | 2015-03-25 | 绵阳富临精工机械股份有限公司 | Engine oil control valve with guiding structure |
| CN205900226U (en) * | 2016-07-22 | 2017-01-18 | 绵阳富临精工机械股份有限公司 | Electromagnet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099170A (en) * | 2017-06-21 | 2018-12-28 | 大陆汽车电子(芜湖)有限公司 | Compressed gas by-passing valve |
| CN109099170B (en) * | 2017-06-21 | 2024-05-17 | 纬湃汽车电子(芜湖)有限公司 | Compressed gas bypass valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106024265B (en) | 2018-01-02 |
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