CN208750114U - A kind of electromagnetic assembly and solenoid valve - Google Patents
A kind of electromagnetic assembly and solenoid valve Download PDFInfo
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- CN208750114U CN208750114U CN201721437952.5U CN201721437952U CN208750114U CN 208750114 U CN208750114 U CN 208750114U CN 201721437952 U CN201721437952 U CN 201721437952U CN 208750114 U CN208750114 U CN 208750114U
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- magnetic sheath
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- solenoid valve
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Abstract
The utility model provides a kind of electromagnetic assembly and solenoid valve, electromagnetic assembly includes the identical shell of extending direction, coil and magnetic sheath, coil is in the direction of extension around package at least partly magnetic sheath, shell is around package coil and magnetic sheath, magnetic sheath has one for accommodating the hollow chamber of element, and magnetic sheath extends along the groove that one is offered on the outer wall in direction around magnetic sheath.The utility model is by by magnetic sheath integrated setting, it can guarantee concentricity and id tolerance requirement, overcome the centering and the bad problem of concentricity being likely to occur in segmented magnetic sheath processing in the prior art and assembly, it is negatively affected to reduce dimensioned and assembling process to electromagnetic force bring, improve service performance, improves the robustness of system.In addition, integrated structure is simpler, processing is also declined compared with the prior art with assembly cost, while reducing assembly process, can reduce assembly beat, improves production efficiency.
Description
Technical field
The utility model belongs to solenoid valve market, is related to a kind of electromagnetic assembly and solenoid valve.
Background technique
The solenoid valve that the automatic transmission of existing passenger vehicle uses, in order to realize controllable output pressure or output
Flow is general using the proportion magnetic valve with constant air gap structure, the armature of the proportion magnetic valve with constant air gap structure
It can be parked in any position in stroke-limit, and the electromagnetic force proportional to electric current can be exported.
Constant air gap structure generally cooperates realization by segmented magnetic sheath.As shown in Figure 1, to be typical using segmentation
The proportion magnetic valve of formula magnetic sleeve structure, based on " magnetic line of force always has along the smallest path closure of magnetic resistance, and tries hard to contract
Short magnetic flux path is to reduce magnetic resistance " design of this principle, specific structure includes push rod A1, limit film A2, guide sleeve A3, magnetism-isolating loop
A4, armature A5, loop A 6 and bearer ring A7, wherein two sections of magnetic sheaths (i.e. guide sleeve A3) are made of permeability magnetic material respectively, and centre makes
With one section of non-magnet material (i.e. magnetism-isolating loop A4), shell uses permeability magnetic material, with formed magnetic loop, final output and electric current at than
The electromagnetic force with horizontal pull characteristics of example.
Using the proportion magnetic valve of constant air gap structure, when being passed through a constant current to proportional solenoid valve control coil,
Coil current control under, form two magnetic circuits, as shown in Fig. 2, a magnetic circuit φ 1 by drive end bearing bracket through basin shape pole shoe bottom along axial direction
Working gas gap enters armature, returns to drive end bearing bracket pole shoe across guide sleeve back segment, magnetic conductive shell, generates axial force；Another magnetic-path
φ 2 enters back into armature, then to form additional axial force with converging to working gas gap is passed through；The two synthesis obtains proportion magnetic valve
Power output Fm.For the horizontal nature of armature displacement, proportion magnetic valve be may be implemented in workspace, make its power output
Size only with it is current related, it is unrelated with armature displacement.Therefore, proportion magnetic valve is when coil current is to timing, in impulse stroke
There is horizontal displacement force characteristic, as shown in Figure 3 in area.
But using the proportion magnetic valve of segmented magnetic sleeve structure, magnetism-isolating loop and two sections of magnetic sheaths for being located at its both ends
General use is welded to connect at one piece, in this way during electromagnetic valve work, it is difficult to guarantee in two sections of magnetic sheaths and armature cooperation
The concentricity of diameter can make the movement of armature obstructed, even result in clamping stagnation, influence the output of stablizing of electromagnetic force, and then direct shadow
Ring solenoid valve service performance.Meanwhile the design of segmented magnetic sheath increases processing so that the number of parts of electromagnet portion increases
With assembly cost, the robustness of system is reduced.
Utility model content
The purpose of the utility model is to provide a kind of electromagnetic assembly and solenoid valves, it is intended to solve ratio in the prior art
The segmented magnetism Analysis of Nested Design bring electromagnetic force of solenoid valve exports unstable and complicated process and assemble problem.
In order to solve the above technical problems, the utility model provides a kind of electromagnetic assembly, including the identical shell of extending direction
Body, coil and magnetic sheath, the coil is on the extending direction around at least partly described magnetic sheath of package, the shell
Around the coil and the magnetic sheath is wrapped up, the magnetic sheath has a hollow chamber for being used to accommodate element, the magnetism
Cover the groove for offering one around the magnetic sheath on the outer wall for extending along direction.
Further, the cross sectional shape of the groove is " V " shape, polygon, circle, semicircle, arc or irregular shape.
Further, the quantity of the groove is multiple, and multiple grooves are intervally arranged along the extending direction of the magnetic sheath.
Further, the center line of the coil, the shell and the magnetic sheath on the same line, the shell
Body, the magnetic sheath are all made of magnetic material and are made.
A kind of solenoid valve, including electromagnetic assembly as described above.
Further, the element is armature, and the armature is set in the chamber of the magnetic sheath and can be along described
Extending direction linear motion.
Further, the solenoid valve further includes push rod, and the magnetic sheath extends along direction and offers through-hole, described logical
It is connected to outside the chamber of the one end in hole and the magnetic sheath, the other end and magnetic sheath, one end of the push rod and the armature
Connection, the other end pass through the through-hole and are located at outside the magnetic sheath, and the push rod is for conduction power to the solenoid valve
Spool.
Further, the solenoid valve further includes limit film, and the limit film is set to the chamber close to the through-hole
End face on.
Further, the groove is opened in the magnetic sheath close to the part of the limit film.
Compared with prior art, the utility model provides a kind of electromagnetic assembly and solenoid valve, by by magnetic sheath one
Change setting, it is ensured that concentricity and id tolerance requirement overcome the processing of segmented magnetic sheath and assembly in the prior art
In the centering that is likely to occur and the bad problem of concentricity, so that it is negative to electromagnetic force bring to reduce dimensioned and assembling process
Face is rung, and is improved service performance, is improved the robustness of system.In addition, integrated structure is simpler, processing and assembly cost
Also declined compared with the prior art, while reducing assembly process, assembly beat can be reduced, improve production efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the proportion magnetic valve of segmented magnetism Analysis of Nested Design；
Fig. 2 is the schematic diagram for the magnetic circuit that a kind of proportion magnetic valve of segmented magnetism Analysis of Nested Design generates at work；
Fig. 3 is that its power output is displaced relative to armature at work for the proportion magnetic valve of segmented magnetism Analysis of Nested Design a kind of
Level characteristics；
Fig. 4 is a kind of structural schematic diagram of the magnetic sheath for electromagnetic assembly that an embodiment of the present invention provides；
Fig. 5 to Fig. 7 is the schematic diagram of the groove of different shapes on the magnetic sheath that an embodiment of the present invention provides；
Fig. 8 is a kind of schematic diagram for electromagnetic assembly that an embodiment of the present invention provides；
Fig. 9 is a kind of schematic diagram for solenoid valve that an embodiment of the present invention provides.
Wherein, A1,5- push rod；A2,6- limit film；A3- guide sleeve；A4- magnetism-isolating loop；A5,4- armature；A6,2- coil；A7-
Bearer ring；1- shell；3- magnetic sheath；31- chamber；32- groove；33- through-hole.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes a kind of electromagnetic assembly and solenoid valve make into one
Step is described in detail.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.It should be noted
It is that attached drawing is all made of very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating this reality
With the purpose of new embodiment.The same or similar appended drawing reference represents the same or similar component in attached drawing.
Fig. 4 is a kind of structural schematic diagram of the magnetic sheath for electromagnetic assembly that an embodiment of the present invention provides；Fig. 5 extremely schemes
7 be the schematic diagram of the groove of different shapes on the magnetic sheath that an embodiment of the present invention provides；Fig. 8 is the utility model one
A kind of schematic diagram for electromagnetic assembly that embodiment provides；Fig. 9 is a kind of showing for solenoid valve that an embodiment of the present invention provides
It is intended to.
Please refer to Fig. 4 to Fig. 8, a kind of electromagnetic assembly of the utility model, including the identical shell 1 of extending direction, coil 2
And magnetic sheath 3, the coil 2 is on the extending direction around at least partly described magnetic sheath 3 of package, 1 ring of shell
Around the coil 2 and the magnetic sheath 3 is wrapped up, the magnetic sheath 3 has a hollow chamber 31 for being used to accommodate element, the magnetic
Property set 3 extend along offered on the outer wall in direction one around the magnetic sheath groove 32.With segmented in the prior art
Magnetic Analysis of Nested Design is different, by by 3 integrated setting of magnetic sheath in this programme, and groove 32 is opened up on magnetic sheath, the groove
32 can equally play the role of the magnetism-isolating loop of the prior art, so that magnetic sleeve wall thickness is formed gap in the axial direction, reach realization magnetic
Property the power output that provides of component only with coil current size in relation to, the purpose with horizontal nature.Moreover, the magnetic of integrated setting
Property set can guarantee concentricity and id tolerance requirement, overcome in the prior art segmented magnetic sheath processing with assembly in can
The centering and the bad problem of concentricity that can occur, to reduce dimensioned and assembling process to the negative shadow of electromagnetic force bring
It rings, improves service performance.In addition, integrated structure is simpler, processing is also declined compared with the prior art with assembly cost.
In the present embodiment, additional qualification is not done for the shape and quantity of the groove 32, as long as can be in the magnetic
Property set 3 on process gap structure and belong to the protection scope of the utility model, such as the cross sectional shape of the groove 32 can be with
For " V " shape, polygon, circle, semicircle, arc or irregular shape, as shown in Figures 5 to 7.The quantity of the groove 32 can be with
To be multiple, multiple grooves 32 are intervally arranged along the extending direction of the magnetic sheath 3.Equally, the utility model is for groove 32
Working position and gap structure are also not construed as limiting, the gap structure shape with axial symmetry feature.In addition, magnetic sheath is recessed
32 structure of slot is easy to change and adjust, and realization is facilitated mutually should to carry out deformation exploitation to groove 32 according to the needs of electromagnetic force, thus
Realize customizing can design for different hydraulic systems.
Preferably, the center line of the coil 2, the shell 1 and the magnetic sheath 3 on the same line,
The shell 1, the magnetic sheath 3 are all made of magnetic material and are made.
The utility model also provides a kind of solenoid valve, as shown in figure 9, including electromagnetic assembly as described above.Wherein, described
Element is armature 4, and the armature 4 is set in the chamber 31 of the magnetic sheath 3 and can move along a straight line along the extending direction.
Further, the solenoid valve further includes push rod 5, and the magnetic sheath 4 extends along direction and offers through-hole 33, institute
The one end for stating through-hole 33 is connected to the chamber 31 of the magnetic sheath 3, is connected to outside the other end and magnetic sheath, one end of the push rod 5
It is connect with the armature 4, the other end passes through the through-hole 33 and is located at outside the magnetic sheath, and the push rod 5 is used for conduction power
To the spool (not marked in figure) of the solenoid valve.
Further, the solenoid valve further includes limit film 6, and the limit film 6 is set to the chamber 31 close to described
On the end face of through-hole 33.The groove 32 can be opened in the magnetic sheath 3 close to the part of the limit film 6.According to Fig. 3 I
Know, proportion magnetic valve at work its power output only with respect to a certain range of armature displacement keep constant, therefore,
The movement of armature 4 is defined in the present solution, being provided with limit film 6, the power output to guarantee solenoid valve is constant.
In conclusion the utility model provides a kind of electromagnetic assembly and solenoid valve, by by magnetic sheath integrated setting,
It can guarantee concentricity and id tolerance requirement, overcoming in segmented magnetic sheath processing in the prior art and assembly may go out
Existing centering and the bad problem of concentricity negatively affects electromagnetic force bring to reduce dimensioned and assembling process,
Improve service performance, improves the robustness of system.In addition, integrated structure is simpler, process also more existing with assembly cost
There is technology to be declined, while reducing assembly process, assembly beat can be reduced, improves production efficiency.
Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model
Fixed, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content belong to right and want
Seek the protection scope of book.
Claims (8)
1. a kind of electromagnetic assembly, which is characterized in that including the identical shell of extending direction, coil and magnetic sheath, the coil
Around at least partly described magnetic sheath is wrapped up on the extending direction, the shell is around the package coil and the magnetism
Set, the magnetic sheath have one for accommodating the hollow chamber of element, and the magnetic sheath is extended along and opened up on the outer wall in direction
There is a groove around the magnetic sheath；
On the same line, the shell, the magnetic sheath are equal for the center line of the coil, the shell and the magnetic sheath
It is made of magnetic material.
2. a kind of electromagnetic assembly according to claim 1, which is characterized in that the cross sectional shape of the groove is " V " shape, more
Side shape, circle, semicircle or arc.
3. a kind of electromagnetic assembly according to claim 1, which is characterized in that the quantity of the groove be it is multiple, it is multiple recessed
Slot is intervally arranged along the extending direction of the magnetic sheath.
4. a kind of solenoid valve, which is characterized in that including electromagnetic assembly as described in any one of claims 1-3.
5. a kind of solenoid valve according to claim 4, which is characterized in that the element is armature, and the armature is set to
It can move along a straight line in the chamber of the magnetic sheath and along the extending direction.
6. a kind of solenoid valve according to claim 5, which is characterized in that further include push rod, the magnetic sheath extends along
Direction offers through-hole, and the chamber of one end of the through-hole and the magnetic sheath, the other end and magnetic sheath are connected to outside, described
One end of push rod is connect with the armature, and the other end passes through the through-hole and is located at outside the magnetic sheath, and the push rod is for conducting
Active force to the solenoid valve spool.
7. a kind of solenoid valve according to claim 6, which is characterized in that further include limit film, the limit film is set to
The chamber is on the end face of the through-hole.
8. a kind of solenoid valve according to claim 7, which is characterized in that the groove is opened in the magnetic sheath close to institute
State the part of limit film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437952.5U CN208750114U (en) | 2017-11-01 | 2017-11-01 | A kind of electromagnetic assembly and solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721437952.5U CN208750114U (en) | 2017-11-01 | 2017-11-01 | A kind of electromagnetic assembly and solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208750114U true CN208750114U (en) | 2019-04-16 |
Family
ID=66050098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721437952.5U Active CN208750114U (en) | 2017-11-01 | 2017-11-01 | A kind of electromagnetic assembly and solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208750114U (en) |
-
2017
- 2017-11-01 CN CN201721437952.5U patent/CN208750114U/en active Active
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