CN106050468B - A kind of electromagnet sealing structure - Google Patents
A kind of electromagnet sealing structure Download PDFInfo
- Publication number
- CN106050468B CN106050468B CN201610585815.XA CN201610585815A CN106050468B CN 106050468 B CN106050468 B CN 106050468B CN 201610585815 A CN201610585815 A CN 201610585815A CN 106050468 B CN106050468 B CN 106050468B
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- China
- Prior art keywords
- shell
- electromagnet
- magnetic core
- hood
- yoke bush
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnets (AREA)
Abstract
The present invention provides a kind of electromagnet sealing structure, including electromagnet, sealing ring (3) and hood (13), the electromagnet includes shell (1), shell (5), preceding yoke bush (8) and rear yoke bush (10) and magnetic core (11), it is connected and fixed between the shell (1) and hood (13), it is formed and is tightly connected between the shell (5) and preceding yoke bush (8), the sealing ring (3) is located at shell (1), shell (5), hood (13) is formed by space, and sealing ring (3) respectively with shell (5), hood (13), which is formed, to be tightly connected.It can be formed using the present invention with multi-sealed electromagnet sealing structure, greatly improve the sealing reliability between electromagnet and hood, there are the outstanding advantages such as compact-sized, implementation cost is low.
Description
Technical field
The present invention relates to the sealed connection technical field between electromagnet and hood, more particularly, to being applied to start
A kind of electromagnet sealing structure of machine variable cam timing system.
Background technique
There are mainly two types of control valves in existing engine variable cam timing system: side-mounted control valve and middle
Control valve.Wherein, be widely used mainly side-mounted control valve, middle control valve be on side-mounted control valve into
Capable technology upgrading.Compared to side-mounted control valve, middle control valve has the advantage that (1), in middle control valve
Body portion can be closer with the distance between phaser, so that it is shorter to control oil circuit, it is therefore, steady in response speed and control
Side-mounted control valve is all better than on qualitative.(2), since the valve body of middle control valve is directly instead of the installation spiral shell of phaser
Nail, eliminates cylinder cap mounting hole and oil duct, to reduce engine manufacturing cost.Therefore, in engine variable cam timing
In system, the application of middle control valve will increasingly be taken seriously.
But the response speed and control stability of the electromagnet in existing middle control valve are poor, thus cause
The response speed and control stability of engine variable cam timing system decrease, and deteriorate engine performance；Moreover, existing
The assembly technology of some middle control valves is also more complicated, higher to the requirement on machining accuracy of components, so as to cause production
The rising of cost, in addition, when carrying out the assembling work between electromagnet and hood, there is a problem in that: first is that group
Dress is difficult, when electromagnet is encased in the mounting hole specified on hood, biggish thrust is needed, first is that in assembling process
In, it may cause sealing ring and trimming occur, to influence sealing reliability.
Summary of the invention
The technical problem to be solved by the present invention is in view of the problems of the existing technology, providing a kind of electromagnet sealing knot
Structure, it is not only compact-sized, but also sealed reliable.
The technical problem to be solved in the present invention is realized using following technical scheme: a kind of electromagnet sealing structure, including
Electromagnet, sealing ring and hood, the electromagnet include shell, shell, preceding yoke bush and rear yoke bush and magnetic core, the shell
Be connected and fixed between body and hood, between the shell and preceding yoke bush formed be tightly connected, the sealing ring be located at shell,
Shell, hood are formed by space, and sealing ring forms with shell, hood be tightly connected respectively.
Preferably, seal convexity is formed on the shell, the sealing ring is located at seal convexity, shell, hood
It is formed by space.
Preferably, it is formed and is tightly connected between the seal convexity and hood.
Preferably, anticreep barb is formed on the shell, the anticreep barb, sealing ring are located at seal convexity
Opposite end.
Preferably, form anticreep barb on the shell, the sealing ring be located at anticreep barb and hood it
Between.
Preferably, sealing bayonet is formed on the shell, mutually to block between the anticreep barb and sealing bayonet
Conjunction mode forms sealed connection.
Preferably, the guide groove that several ring magnetic core distributions are opened up on the magnetic core, installs spin body, institute in guide groove
Magnetic core is stated to move by spin body relative to rear yoke bush.
It preferably, further include guide sleeve, the magnetic core is installed on guide sleeve inner cavity, and magnetic core is moved relative to rear yoke bush
When, rolling friction is formed between the spin body and guide sleeve internal chamber wall.
Preferably, several are opened up in the preceding yoke bush and what is be distributed in a ring first cools down hole.
Preferably, glue notch was opened up in the rear yoke bush.
Compared with prior art, the beneficial effects of the present invention are: due to being formed by sky in shell, shell, hood
It is interior to be provided with sealing ring, and sealing ring forms with shell, hood be tightly connected respectively, so as to form with multiple close
The electromagnet sealing structure of envelope, greatly improves the sealing reliability between electromagnet and hood, and compact-sized,
Implementation cost is low.
Detailed description of the invention
Fig. 1 is a kind of structural map (embodiment 1) of electromagnet sealing structure of the present invention.
Fig. 2 is the cross-sectional view of the electromagnet in Fig. 1.
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Fig. 4 is a kind of structural map (embodiment 2) of electromagnet sealing structure of the present invention.
Fig. 5 is the cross-sectional view of the electromagnet in Fig. 4.
Fig. 6 is the partial enlarged view in Fig. 5 at B.
Fig. 7 is the cross-sectional view of the installation part in Fig. 1 or Fig. 4.
Fig. 8 is the cross-sectional view of the preceding yoke bush in Fig. 1 or Fig. 4.
Fig. 9 is the side view of preceding yoke bush shown in Fig. 8.
Figure 10 is the top view of the rear yoke bush in Fig. 1 or Fig. 4.
Figure 11 is the cross-sectional view of the magnetic core in Fig. 1 or Fig. 4.
Figure 12 is the side view of magnetic core shown in Figure 11.
Marked in the figure: 1- shell, 2- installation part, 3- sealing ring, 4- coil, 5- shell, 6- skeleton, 7- magnetic core axis, before 8-
Yoke bush, 9- guide sleeve, yoke bush after 10-, 11- magnetic core, 12- spin body, 13- hood, 14- engine inner chamber, 15- connection spiral shell
Nail, 21- locating notch, 51- anticreep barb, 52- seal face, 81- first order inner hole, the second level 82- inner hole, the 83- third level
Inner hole, 84- first cool down hole, and 101- crosses glue notch, 111- guide groove, 112- magnetic core shaft mounting hole, and 113- second cools down hole,
1a- seal convexity, 1b- seal bayonet, 130- assembled end.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing and specific implementation
The present invention is described in detail for example.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
In engine variable cam timing system, as Figure 1 and Figure 4, the shell 1 of electromagnet and hood 13 it
Between be connected and fixed by attachment screw 15, and be bonded to each other between the assembled end 130 on the shell 1 and hood 13,
Clearance fit is formed between installation inner hole on the shell 5 and hood 13 of electromagnet, it is therefore necessary to ensure electromagnet and hair
Sealing reliability between motivation lid 13.
Embodiment 1
Electromagnet sealing structure as shown in Figure 1 and Figure 2, mainly including electromagnet, sealing ring 3 and hood 13, wherein
Electromagnet structure as shown in Fig. 2, mainly include shell 5, skeleton 6, preceding yoke bush 8 and rear yoke bush 10 and magnetic core 11, it is described
Shell 5 structure be cup-like structure, open up installation through-hole in 5 bottom of shell, shell 5 cup-mouth end be arranged anticreep barb 51
As the disconnecting prevention structure of shell 5, the anticreep barb 51, which can be, handle and shape to outer folding edge by the cup-mouth end of shell 5
At, but the cup-mouth end flanging for being also not necessarily limited to shell 5 is formed, and is also possible to using other shape and structures for being able to achieve this function, such as
Notch, circular hole etc. are set in the lateral increase of shell 5, shell 5 can be effectively prevented in electromagnetism by the way that anticreep barb 51 is arranged
Iron by high vibration or external impacts in the case where get loose phenomenon between shell 1.
The overall structure of the preceding yoke bush 8 is T-shaped structure as shown in Figure 8, opens up three-level stepped hole in preceding yoke bush 8,
First order inner hole 81, second level inner hole 82 and third level inner hole 83 respectively, also opened up in preceding yoke bush 8 several and in a ring
The first of distribution is cooled down hole 84, as shown in figure 9, the relatively small end of the preceding yoke bush 8 runs through the installation through-hole of 5 bottom of shell,
And it forms a fixed connection between the relatively big end and shell 5 of preceding yoke bush 8；It is cooled down hole 84, Ke Yifang by setting multiple first
Just the installation operation of preceding yoke bush 8, the assembly efficiency of yoke bush 8 before improving.
It is formed and is tightly connected between the shell 5 and preceding yoke bush 8, the sealing ring 3 is located at shell 1, shell 5, starts
Cover 13 is formed by space, and sealing ring 3 forms with shell 5, hood 13 be tightly connected respectively.The sealing ring
3 can use O-ring seal, but be not limited to O-ring seal, be also possible to other any sealing rings with sealing function.For
The sealing performance between electromagnet and hood 13 is further improved, can form seal convexity 1a, institute on shell 1
It states sealing ring 3 and is located at seal convexity 1a, shell 5, hood 13 and be formed by space, on the sealing ring 3, shell 5
Anticreep barb 51 be located at the opposite end of seal convexity 1a, the seal face 52 of the seal convexity 1a and shell 5 it
Between formed be tightly connected, as shown in Figure 3.It is desirably also to form sealing to connect between seal convexity 1a and hood 13 therein
It connects.
Embodiment 2
Electromagnet sealing structure as shown in Figure 4, Figure 5, the sealing ring 3 are located at anticreep barb 51 and hood 13
Between, other are the same as embodiment 1.In order to further improve the sealing performance between electromagnet and hood 13, Ke Yi
Sealing bayonet 1b is formed on shell 1, and sealing is formed in a manner of being mutually clamped between the anticreep barb 51 and sealing bayonet 1b
Connection, as shown in Figure 6.
Due to being clearance fit between the installation inner hole on 5 outer circle of shell and hood 13, in assembling process, only need
After 5 outer circle of shell is put into the installation inner hole on hood 13, attachment screw 15 is locked.When in locking attachment screw 15
When, so that it may it is cooperated by the barb end face of anticreep barb 51 and the assembled end 130 of hood 13, makes sealing ring 3
Generate axial deformation because stress squeezes, realized under the action of the axial screen resilience of sealing ring 3 electromagnet and hood 13 it
Between effective sealing, prevent the machine oil in engine inner chamber 14 from leaking out to 13 outer end face of hood along 5 outer circle of shell.
By using above-mentioned end face seal mode, compared with radial seal mode, it is possible to reduce sealing ring 3 is entering hair
On motivation lid 13 installation inner hole when thrust, and avoid sealing ring 3 enter hood 13 on installation inner hole hole
There may be the risks of trimming when mouth, it is also possible to cancel the inner hole step on hood 13, are processed into reduce
This.
For the electromagnet in the present invention, as shown in Figure 10, the section of the rear yoke bush 10 is L-shaped, at its bottom
End offers several and crosses glue notch 101, and the glue notch 101 of crossing is in U-shape, but is not limited to U-shaped, can also be and is square, justifies
Shape, rectangle, triangle or other geometries that can satisfy glue function.By the way that glue notch 101 was arranged, infusing
When moulding is at shell 1, the injection molding material of molten state can be made to accelerate to enter bone by the gap between rear yoke bush 10 and shell 5
6 inner cavity of frame improves 1 shaping speed of shell, guarantees the connection reliability between the associated member of electromagnet.
The skeleton 6 is installed on shell 5 and rear yoke bush 10, and to be formed by type intracavitary, in the intracavitary coiling of 6 type of skeleton
4, rear 10 section of yoke bush is L-shaped, and is installed on 6 inner hole of skeleton.The structure of the magnetic core 11 as shown in Figure 11, Figure 12,
Central part opens up the magnetic core shaft mounting hole 112 for magnetic core axis 7 to be fixedly mounted, and one end of the magnetic core axis 7 is pacified by magnetic core axis
It is plugged and fixed between dress hole 112 and magnetic core 11, and the other end of magnetic core axis 7 is passing through the first order inner hole 81 in preceding yoke bush 8, the
Yoke bush 8 before being exposed to after second level inner hole 82 and third level inner hole 83.Several guiding are opened up in 11 outer circle circumferential direction of ring magnetic core
Slot 111 at least installs a spin body 12 in each guide groove 111；By the magnetic core shaft mounting hole 112 on magnetic core 11 also
It opens up second to cool down hole 113, described second cools down 113 semicircular in shape of hole, but is not limited to semicircle, is also possible to other to have
There is the geometry for function of cooling down；In addition, described second cool down hole 113 can be with 112 phase of magnetic core shaft mounting hole on magnetic core 11
Mutually perforation, but it is not limited to the perforation that is connected with magnetic core shaft mounting hole 112, it is also possible to that other any positions of 11 end face of magnetic core are arranged in
It sets.
It is intracavitary that the magnetic core 11 is mounted on the type being collectively formed by shell 5, preceding yoke bush 8, skeleton 6, rear yoke bush 10, and magnetic
Core 11 can move under electromagnetic force relative to preceding yoke bush 8, rear yoke bush 10.When magnetic core 11 under electromagnetic force relative to
When preceding yoke bush 8, rear yoke bush 10 move, several supports are formd due to passing through spin body 12 between magnetic core 11 and rear yoke bush 10
Point, and magnetic core 11 contacts with each other to form rolling friction by spin body 12 and rear yoke bush 10, so that magnetic core 11 and rear yoke
Do not occur directly to contact between set 10, i.e., magnetic core 11 is to move by spin body 12 relative to rear yoke bush 10, be can be improved in this way
The autokinesis and kinetic stability of magnetic core 11, and the frictional resistance of magnetic core 11 during exercise is smaller, it therefore, can be greatly
Improve the response speed and control stability of electromagnet.
Since spin body 12 generallys use steel ball, with rear yoke bush 10 because of the friction that contacts with each other in 11 motion process of magnetic core
And the overexercise of rear yoke bush 10 is be easy to cause to wear, to reduce the service life of electromagnet.For this purpose, as shown in Figure 1, Figure 2, Fig. 4,
Shown in Fig. 5, can increase between magnetic core 11 and rear yoke bush 10 setting cup-shaped structure guide sleeve 9,9 inner cavity of guide sleeve with
Three-level stepped hole in preceding yoke bush 8 together forms the type chamber for the installation of magnetic core 11, movement, makes magnetic core 11 and magnetic core axis 7, spin
The assembly that body 12 is formed can move in the space defined by the type chamber, and pass through third level inner hole 83 and magnetic core axis 7
Between form clearance fit, to guarantee that magnetic core axis 7 can be relative to preceding 8 free movement of yoke bush.The magnetic core 11 is installed on guiding
9 inner cavities are covered, when magnetic core 11 is moved relative to rear yoke bush 10, is formed and is rolled between 9 internal chamber wall of the spin body 12 and guide sleeve
Friction.
When magnetic core 11 moves under electromagnetic force relative to preceding yoke bush 8, rear yoke bush 10, magnetic core 11 and guide sleeve 9 it
Between will form several supporting points by spin body 12, and magnetic core 11 contacts with each other to be formed with guide sleeve 9 by spin body 12
Rolling friction so that do not occur directly to contact between magnetic core 11 and guide sleeve 9, i.e., magnetic core 11 by spin body 12 relative to
Yoke bush 10 moves afterwards, and so as to improving the autokinesis and kinetic stability of magnetic core 11, and magnetic core 11 is during exercise
Frictional resistance is smaller, therefore, greatly improves the response speed and control stability of electromagnet；Meanwhile it being oriented to by setting
Set 9, the fretting wear of yoke bush 10 after can also mitigating are conducive to the service life for improving electromagnet.
In addition, Hermetical connecting structure is preferably formed between the guide sleeve 9 in electromagnet and shell 5, it is specifically, described to lead
Hermetical connecting structure can be formed by welding manner between the arrival end and shell 5 of set 9, but be not limited to welding manner,
Can be through bonding or other connection types makes to form Hermetical connecting structure between 9 arrival end of guide sleeve and shell 5.When
Machine oil in engine inner chamber 14 is after penetrating into 9 inner cavity of guide sleeve, due to being formed between the guide sleeve 9 in electromagnet and shell 5
Therefore company of the machine oil in 9 inner cavity of guide sleeve across guide sleeve 9 and shell 5 can be effectively avoided in Hermetical connecting structure
Socket part position and penetrate into 3 place position of sealing ring and caused by seal failure.
It, can be by coil 4, shell 5, skeleton 6 and guide sleeve 9 and rear yoke bush in order to facilitate the assembly or disassembly of electromagnet
The electromagnetic solenoid for forming integral structure between 10 by being molded not only makes electromagnet by forming integral structure
Structure is more compact, functional reliability is higher, and is convenient to mount and dismount, and processing cost is lower.Molded portion therein forms shell
1, installation part 2 as shown in Figure 7 can also be consolidated on shell 1, mounting hole is set on the installation part 2, with convenient electromagnetic iron
Installation operation；The installation part 2 usually selects bolt washer, and bolt washer consolidation is installed on to the flange face of shell 1.
In order to improve the bonding strength between installation part 2 and shell 1, the anticreep of annular can be opened up on the outer circumference surface of installation part 2
Disconnecting prevention structure of the locating notch 21 of annular as installation part 2 is arranged, as shown in Figure 7 in slot；The locating notch 21 can also
To use other shape and structures for being able to achieve this function, such as pit, circular hole, by the way that locating notch 21 is arranged on installation part 2
Disconnecting prevention structure is formed, can prevent installation part 2 and shell 1 from occurring in the case where electromagnet is by high vibration or external impacts
It loosens.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention
Within the scope of shield.
Claims (5)
1. a kind of electromagnet sealing structure, including electromagnet and hood (13), the electromagnet include shell (1), shell
(5), preceding yoke bush (8) and rear yoke bush (10) and magnetic core (11), are connected and fixed between the shell (1) and hood (13),
It is formed and is tightly connected between the shell (5) and preceding yoke bush (8), it is characterised in that: further include sealing ring (3), the sealing ring
(3) be located at shell (1), shell (5), hood (13) are formed by space, and sealing ring (3) respectively with shell (5), hair
Motivation lid (13), which is formed, to be tightly connected；Sealing bayonet (1b) is formed on the shell (1), is formed anticreep on the shell (5) and is fallen
Hook (51), the sealing ring (3) are located between anticreep barb (51) and hood (13), the anticreep barb (51) with it is close
Sealed connection is formed in a manner of being mutually clamped between envelope bayonet (1b).
2. a kind of electromagnet sealing structure according to claim 1, it is characterised in that: the magnetic core (11) if on open up
The guide groove (111) of dry ring magnetic core (11) distribution, installs spin body (12) in guide groove (111), the magnetic core (11) passes through
Spin body (12) is moved relative to rear yoke bush (10).
3. a kind of electromagnet sealing structure according to claim 2, it is characterised in that: further include guide sleeve (9), the magnetic
Core (11) is installed on guide sleeve (9) inner cavity, and when magnetic core (11) is moved relative to rear yoke bush (10), the spin body (12) with lead
Rolling friction is formed between set (9) internal chamber wall.
4. a kind of electromagnet sealing structure according to claim 1, it is characterised in that: opened up in the preceding yoke bush (8)
Several and what is be distributed in a ring first cool down hole (84).
5. a kind of electromagnet sealing structure according to claim 1, it is characterised in that: opened up in the rear yoke bush (10)
Cross glue notch (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585815.XA CN106050468B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585815.XA CN106050468B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050468A CN106050468A (en) | 2016-10-26 |
| CN106050468B true CN106050468B (en) | 2019-03-29 |
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ID=57417257
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610585815.XA Active CN106050468B (en) | 2016-07-22 | 2016-07-22 | A kind of electromagnet sealing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN106050468B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023044640A1 (en) * | 2021-09-23 | 2023-03-30 | 舍弗勒技术股份两合公司 | Electromagnetic actuator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10238840A1 (en) * | 2002-08-23 | 2004-03-04 | Thomas Magnete Gmbh | Electromagnetic linear actuator has the coil and yoke within plastic body with an end cap enclosing the assembly and providing guidance for armature |
| DE102006027349A1 (en) * | 2006-06-13 | 2007-12-20 | Schaeffler Kg | Camshaft adjuster with an electromagnetic actuator |
| DE102007061862A1 (en) * | 2007-12-19 | 2009-06-25 | Thomas Magnete Gmbh | Switchable magnet arrangement as an actuating element for a valve or other functional elements |
| DE102013209859A1 (en) * | 2013-05-28 | 2014-12-04 | Schaeffler Technologies Gmbh & Co. Kg | Central valve with an electromagnet for controlling the central valve |
| DE102014010876B3 (en) * | 2014-07-25 | 2015-10-01 | Hilite Germany Gmbh | Actuator for a hydraulic valve of a Nockenwellenschwenkmotorverstellers and hydraulic valve with an actuator for a Nockenwellenschwenkmotorversteller |
| JP6354560B2 (en) * | 2014-12-12 | 2018-07-11 | 株式会社デンソー | Electromagnetic actuator |
| CN205895428U (en) * | 2016-07-22 | 2017-01-18 | 绵阳富临精工机械股份有限公司 | Electro -magnet seal structure |
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2016
- 2016-07-22 CN CN201610585815.XA patent/CN106050468B/en active Active
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| Publication number | Publication date |
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| CN106050468A (en) | 2016-10-26 |
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