CN202056385U - Electromagnetic changeover valve - Google Patents
Electromagnetic changeover valve Download PDFInfo
- Publication number
- CN202056385U CN202056385U CN2011201112881U CN201120111288U CN202056385U CN 202056385 U CN202056385 U CN 202056385U CN 2011201112881 U CN2011201112881 U CN 2011201112881U CN 201120111288 U CN201120111288 U CN 201120111288U CN 202056385 U CN202056385 U CN 202056385U
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- valve
- armature
- magnet
- passage
- magnet armature
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Abstract
The utility model relates to an electromagnetic changeover valve. The electromagnetic changeover valve is provided with magnet armatures which can be movably arranged in a passing channel and form valve-closing bodies for two connecting channels. The two connecting channels respectively form valve seats for the valve-closing bodies. The passing channel and the magnet armatures are coordinated in the diameter to enable a gap only existing between the passing channel and the magnet armatures to be smallest, each magnet armature is provided with a plurality of channels extending in the longitudinal direction and gaps extending in the longitudinal direction, and plastic bodies are inserted into the gaps. The electromagnetic changeover valve is characterized in that each plastic body is provided with two elastic sealing bodies with two protruding end faces on the middle portion of each plastic body, the middle portion of each plastic body is connected with an external portion through a rib in each channel which exists in the middle portion, the external portion is accommodated in each gap, and the border of the passing channel is limited by magnet armature cores provided with the connecting channels.
Description
Technical field
The utility model relates to a kind of electromagnetic change-over valve, described electromagnetic change-over valve has magnet armature, described magnet armature is arranged in the transit passage movingly and is formed for the valve closure body of two connecting passages, described connecting passage has formed the valve seat that is used for the valve closure body respectively, wherein transit passage is coordinated on diameter mutually with magnet armature, make and between the two, only have minimum gap, and magnet armature has a plurality of passages that extend at longitudinal direction, and magnet armature has the space of extending in the vertical, inserts plastics in described space.This type of changing valve is known from DE-A1-3310997.
Background technique
Non-this type of the changing valve of DE A1 34 16 336 also has two opposed valve seats, but provides the armature to-and-fro motion between described valve seat that is arranged in its seal on distolateral.
In the space of having arranged longitudinal extension in the wall of this armature of armature leading pipe, described space is used for two valve seat chambers are connected.The protrusion that defines the space of armature leading pipe is used to guide armature.
Non-this type of the valve of eletromagnetic-operating of cicada from DE-A1 37 16 072, wherein armature is formed with the valve closed portion, and wherein the valve closed portion moves in the bullport that is flow through by fluid.For this reason, the valve closure member that is formed by cylindrical base has outside flat section, and described flat section is formed for the passage of fluid.
Known magnet valve from DE-A1 33 10 997, described magnet valve has magnet and valve element, and described valve element is cooperated with two valve seats and formed the access portal that is used for fluid to be controlled in magnet armature.Magnet armature has identical length with the magnet envelope of Qi Nei guiding magnet armature.When magnet coil was switched on, armature radially supported in the magnet envelope in this magnet valve.In addition, magnet armature has big quality.
The problem that exists in electromagnetic change-over valve is that the magnetic resistance that comprises the magnetic loop of yoke, utmost point pipe and armature should keep low as far as possible, and the interval that is about to the iron-free between the described parts remains low as far as possible.
This is opposite with situation known from DE-A 34 16 336, because form the slit of iron-free in the vertical upwardly extending space of armature leading pipe.Being configured in when transferring to this type of situation of formation passage flat section that have known from DE-A1 37 16 072 also amplified the slit of the iron-free between armature and the utmost point pipe.
Summary of the invention
Set out thus, technical problem to be solved in the utility model is to find a kind of measure, uses described measure, compared with prior art, the iron-free slit in the magnetic loop in this type of changing valve obviously can be reduced.
The utility model relates to a kind of electromagnetic change-over valve, described electromagnetic change-over valve has magnet armature, described magnet armature is arranged in the transit passage movingly and is formed for the valve closure body of two connecting passages, described connecting passage has formed the valve seat that is used for the valve closure body respectively, wherein transit passage is coordinated on diameter mutually with magnet armature, make and between the two, only have minimum gap, and magnet armature has a plurality of passages that extend at longitudinal direction, and magnet armature has the space of extending in the vertical, in described space, insert plastics, it is characterized in that, plastics has two elastomer seal body that stretch out two end faces at its intermediate portion, wherein, intermediate portion by between exist the fin of passage to be connected with exterior section, wherein, exterior section is received in the space, and transit passage is had the armature core limited boundary of connecting passage.
Description of drawings
State attainable advantage according to described embodiment, described embodiment illustrates in the accompanying drawings.
Embodiment
Accompanying drawing shows the longitudinal cross-section of candy electromagnetic change-over valve 1, described electromagnetic change-over valve 1 comprises the plastic casing 2 that has injection moulding magnet coil 3 and electrical connection 4, and the magnetic loop that forms by yoke 5, the utmost point pipe 6 that is connected with described yoke 5 and armature core 7, armature 9 can be arranged in the iron-free gap 8 of described magnetic loop.Armature 9 is arranged in the transit passage (Durchla β kanal) 10, and described transit passage 10 is between two fluid connecting passages 11 and 12, and described passage 11 and 12 opening form valve seat 13,14 respectively.Armature 9 and transit passage 10 are coordinated on diameter mutually, make only to have minimum gap between it.Armature 9 has the space 15 of longitudinal extension, the plastics 16 of knowing clearly wherein is installed, described plastics 16 has intermediate portion 17, described intermediate portion 17 has the elastomer seal body 18,19 of stretching out at two end faces, wherein, intermediate portion 17 is connected with exterior section 21 by fin, make intermediate portion 17 and outside form sealing channel 22 between the part 21.
At intermediate portion 17 with have between the armature core 7 of a connecting passage 12, armature 9 is loaded against the valve seat 13 of other connecting passage 11 by described spring 23 with spring 23 tensionings.Transit passage 10 is connected with the 3rd connecting passage 24.Whether switch on according to magnet coil 3, connecting passage 11 is connected with connecting passage 24 and connecting passage 12 is closed, or connecting passage 12 is connected with connecting passage 24 and another connecting passage is closed (as shown).
Between utmost point pipe 6 and armature 9, only comprise very little iron-free gap, by the midfeather 25 described iron-free of formation gap in this zone of assemblage gap between armature 9 and the transit passage 10 and plastic casing 2.Formed very big magnetic force by this little iron-free gap.With this, the use of changing valve zone enlarges or structurally realizes the reduction of magnet coil 3 about the number of windings and physical dimension.
Claims (1)
1. an electromagnetic change-over valve (1), described electromagnetic change-over valve (1) has magnet armature (9), described magnet armature (9) is arranged in the transit passage (10) movingly and is formed for two connecting passages (11,12) valve closure body, described connecting passage (11,12) formed the valve seat (13 that is used for the valve closure body respectively, 14), wherein transit passage is coordinated on diameter mutually with magnet armature, make and between the two, only have minimum gap, and magnet armature has a plurality of passages (22) that extend at longitudinal direction, and magnet armature (9) has the space (15) of extending in the vertical, in described space (15), insert plastics (16), it is characterized in that, plastics has two elastomer seal body (18 that stretch out two end faces at its intermediate portion (17), 19), wherein, intermediate portion (17) by between exist the fin (20) of passage (22) to be connected with exterior section (21), wherein, exterior section (21) is received in the space (15), and transit passage (10) is had armature core (7) limited boundary of connecting passage (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201112881U CN202056385U (en) | 2011-04-15 | 2011-04-15 | Electromagnetic changeover valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201112881U CN202056385U (en) | 2011-04-15 | 2011-04-15 | Electromagnetic changeover valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056385U true CN202056385U (en) | 2011-11-30 |
Family
ID=45016357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201112881U Expired - Fee Related CN202056385U (en) | 2011-04-15 | 2011-04-15 | Electromagnetic changeover valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111630306A (en) * | 2017-11-01 | 2020-09-04 | 费希尔控制产品国际有限责任公司 | Process control valve |
-
2011
- 2011-04-15 CN CN2011201112881U patent/CN202056385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111630306A (en) * | 2017-11-01 | 2020-09-04 | 费希尔控制产品国际有限责任公司 | Process control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |