CN204042142U - A kind of coil of explosion-proof solenoid valve - Google Patents
A kind of coil of explosion-proof solenoid valve Download PDFInfo
- Publication number
- CN204042142U CN204042142U CN201420409163.0U CN201420409163U CN204042142U CN 204042142 U CN204042142 U CN 204042142U CN 201420409163 U CN201420409163 U CN 201420409163U CN 204042142 U CN204042142 U CN 204042142U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic coil
- coil
- solenoid valve
- cassette shell
- explosion
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 230000001012 protector Effects 0.000 claims abstract description 12
- 238000005538 encapsulation Methods 0.000 claims abstract description 11
- 230000004907 flux Effects 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 210000003298 dental enamel Anatomy 0.000 claims description 3
- 238000004880 explosion Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Electromagnets (AREA)
Abstract
The utility model discloses a kind of by electromagnetic coil, electronic circuit board, tension disc, the agent of concentrating flux plate fire retardant insulating encapsulation are potted in the coil of the explosion-proof solenoid valve in cassette shell.Housing upper face establishes guide's head bore, establishes base plate below, and electromagnetic coil is arranged on one end in housing, and electronic circuit board is inserted in the middle slot of housing.The wire be connected with lead-out wires of coil is fixed by arc tension disc.Current protector, temperature safety tube and electromagnetic coil set on electronic circuit board are connected in series; Filter capacitor, piezoresistance and electromagnetic coil are connected in parallel.The all elements of this product are sealed, even if current overload also can not produce spark by the pouring of fire retardant insulating encapsulation agent entirety.Be connected in series current protector and temperature safety tube in the line, when temperature is too high, energy automatic shutdown circuit, prevents burn.Filter capacitor can eliminate ripple current, makes output current more stable.This product can be designed to direct current or interchange as required, can support the use with the solenoid valve of different model.
Description
Technical field
The utility model relates to the vitals in electric apparatus for explosive gas, specifically refers to the coil with the supporting a kind of explosion-proof solenoid valve be assembled into such as iron core, main valve.
Background technique
The electrical equipment worked in explosion hazard environment, all must have explosion prevention function.Therefore the solenoid valve for Automated condtrol is no exception.We know that the working principle of solenoid valve drives main valve to run again by the switching current induced magnetic field rear driving pilot head of electromagnetic coil and realizes.And in the switching electric process of electromagnetic coil, unavoidable for producing electric arc or spark, if do not take the counter measure, its spark produced just is enough to light inflammable, that explosion hazard gases, concentration are high dust and explosion caused casualty accident.And the parts that solenoid valve can produce spark or electric arc only have electromagnetic coil and attachment portion, so require having the coil of the solenoid valve worked in explosive atmosphere to take explosion precaution.It is stable and have arc extinguishing measure to ensure that the coil of national departments concerned once regulation explosion-proof solenoid valve must reach operating current.As the patent No. 93221764.8 " a kind of explosion-proof solenoid valve " just provides a kind of solenoid valve of embedding structure, electromagnetic coil epoxy resin encapsulated in case type shell, the spark of generation is stopped up and puts out, stop outside spark; As the patent No. 96245491.5 " Double steady-state explosion " provides a kind of explosion-proof of being made up of reference diode in the parallel connection of coil two ends, make coil not produce spark when switching electricity, thus make solenoid valve have explosion prevention function, avoid the generation of accident; The such as patent No. 200420020455.1 " Antiexplosive electromagnetic valve coil " again, is also connected with the circuit board of piezoresistance, fuse device, makes Safety performance better with fire-retardant encapsulation agent with case encapsulation in the box body become by base plate.But the applicant finds that the explosion-proof coil majority of current existing this kind of solenoid valve does not arrange filter capacitor in circuit, so easily produce ripple current, electromagnetic valve work state is made not to be very stable, be necessary to be further improved the coil of existing explosion-proof solenoid valve for this reason, make it to become anti-explosion product safe against all possibilities.
Model utility content
Technical problem to be solved in the utility model is: do to improve further to the coil of existing explosion-proof solenoid valve; parallel filtering electric capacity in circuit; all live components fire retardant insulating encapsulations agent is simultaneously encapsulated in housing completely; be made into and there are multiple protective, parts that explosion-proof performance is good, safe and reliable, and can be connected more easily with the solenoid valve main valve of each model.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of coil of explosion-proof solenoid valve, comprises cassette shell, electromagnetic coil, electronic circuit board, tension disc, concentrating flux plate and base plate.Guide's head bore is provided with above described cassette shell, be provided with base plate below cassette shell, described electromagnetic coil is arranged on one end in housing, is made up of on skeleton enamel covered wire, in the middle part of described cassette shell, both sides inwall is provided with slot, and the electronic circuit board having additional filter capacitor is inserted in slot.In described cassette shell, the other end is provided with tension disc, the wire be connected with electromagnetic coil the two poles of the earth lighting outlet is fixed, described electromagnetic coil the two poles of the earth, electronic circuit board, wire are electrically connected successively, and are potted in (see Fig. 1, Fig. 2) in cassette shell together with base plate by the agent of fire retardant insulating encapsulation.
Arcuately, two ends are provided with screw to described tension disc side view, in the fixing post holes with screw-driving one end in cassette shell, are fixed by wire, the short circuit preventing the off-line because pullling wire from causing or open circuit accident (see Fig. 3).
Described electronic circuit board is provided with current protector, filter capacitor, piezoresistance and temperature safety tube; and be electrically connected with electromagnetic coil the two poles of the earth; wherein current protector, temperature safety tube and electromagnetic coil are connected in series, and filter capacitor, piezoresistance and electromagnetic coil are connected in parallel.The effect of current protector and temperature safety tube understands automatic shutdown circuit at current overload or temperature rise higher than during rating value; Filter capacitor and piezoresistance effect are filtering ripples or play shunting, dividing potential drop effect to the induction electromotive force at coil two ends, make coil outputting current steadily, waveform is mild, even if be struck by lightning or the special occasions such as misphase at bulk power grid, also arcing phenomenon (see Fig. 4) can not be produced because voltage functuation is too large.
Also be provided with concentrating flux plate above described electromagnetic coil, be provided with the hole inserting pilot head in the middle of concentrating flux plate, the magnetic field that coil produces when being energized passes to pilot head by concentrating flux plate, and pilot head action promotes main valve and closes or open.
Superiority of the present utility model is the live components such as electromagnetic coil, electronic circuit board, wire together with base plate by fire retardant insulating encapsulation agent entirety pouring sealing, completely cut off with external environment completely, also can not contact with extraneous inflammable, explosive substance even if current overload produces spark.Simultaneously because being connected in series current protector and temperature safety tube in the line, just in case temperature crosses high energy automatic shutdown circuit, to prevent burn.A most important filter capacitor still in parallel in circuit, can eliminate the ripple current of coil, make coil output current more stable, waveform is mild, and the magnetic force not only produced is balanced, the more important thing is and inrush current can be avoided to produce and spark of setting out.This product can be designed to direct current or interchange as required simultaneously, and can support the use with the solenoid valve main valve of different model.
Accompanying drawing explanation
Fig. 1 is the utility model internal structure schematic diagram;
Fig. 2 is the utility model side sectional view;
Fig. 3 is tension disc side schematic view;
Fig. 4 is electronic-circuit diagram of the present utility model, wherein: L-coil, R-piezoresistance, C-filter capacitor, S-temperature safety tube, A-current protector;
Each portion title and mark in figure: 1-housing, 2-tension disc, 3-wire, 4-electronic circuit board, 5-concentrating flux plate, 6-guide's head bore, 7-electromagnetic coil, 8-screw, the agent of 9-fire retardant insulating encapsulation, 10-base plate.
Embodiment
As shown in Figures 1 to 4: a kind of coil of explosion-proof solenoid valve, comprise cassette shell 1, electromagnetic coil 7, electronic circuit board 4, tension disc 2, concentrating flux plate 5 and base plate 10.Cassette shell 1 is provided with guide's head bore 6 above, and guide's head bore 6 diameter can design according to the main valve of the solenoid valve of different model.Cassette shell 1 is provided with base plate 10 below.Electromagnetic coil 7 is made up of on skeleton enamel covered wire, electromagnetic coil 7 is fixed on cassette shell 1 one end, is inserted in the slot in the middle part of cassette shell 1 by electronic circuit board 4.In cassette shell 1, the other end is provided with tension disc 2, the wire 3 be connected is fixed with electromagnetic coil 7 the two poles of the earth lighting outlet; Arcuately, two ends are provided with screw 8 to tension disc 2 side view, and in the fixed hole with screw-driving one end in cassette shell 1, wire 3 can be fixed by tension disc 2 indent arc more closely, prevent the short circuit accident that off-line causes because pullling wire 3 from occurring.Electromagnetic coil 5 the two poles of the earth, electronic circuit board 4, wire 3 are electrically connected successively, and are potted in cassette shell 1 (see Fig. 2) by fire retardant insulating encapsulation agent 9 together with base plate 10.Electronic circuit board 4 is provided with current protector, filter capacitor, piezoresistance and temperature safety tube and is electrically connected with electromagnetic coil 7 the two poles of the earth; wherein current protector, temperature safety tube and electromagnetic coil 7 is connected in series; when circuit encounters fault or have overvoltage, excess current, current protector, temperature safety tube arc Cutout power supply are protected coil.Filter capacitor, piezoresistance and electromagnetic coil 7 is connected in parallel, and when overcurrent appears in coil two ends, can play shunting, dividing potential drop effect to induction current, makes can not produce electrical spark during coil electricity.Electromagnetic coil 7 and all components and parts fire retardant insulating encapsulation agent 10 are watered and are enclosed in shock proof cassette shell 1, and the electrical spark of generation can not be entered outward.If bulk power grid is struck by lightning or the special occasions such as misphase, also arcing phenomenon can not be produced because voltage functuation is too large.So filter capacitor can make, current peak popin is slow, current stabilization, does not produce unexpected spark, really can play explosion-proof.Explosion-proof coil can be made into independently parts in addition, can exchange or direct current explosion-proof solenoid valve series product with the pilot head of various different model, supporting being assembled into of main valve.User is made to have more selection.
Claims (4)
1. the coil of an explosion-proof solenoid valve, comprise cassette shell (1), electromagnetic coil (7), electronic circuit board (4), tension disc (2), concentrating flux plate (5) and base plate (10), described cassette shell (1) is provided with guide's head bore (6) above, cassette shell (1) is provided with base plate (10) below, described electromagnetic coil (7) is arranged on cassette shell (1) interior one end, be made up of on skeleton enamel covered wire, two side, described cassette shell (1) middle part is provided with slot, it is characterized in that the electronic circuit board (4) being provided with filter capacitor is inserted in slot, described cassette shell (1) the interior the other end is provided with tension disc (2), the wire (3) be connected with electromagnetic coil (7) the two poles of the earth lighting outlet is fixed, described electromagnetic coil (7) the two poles of the earth, electronic circuit board (4), wire (3) is electrically connected successively, and be potted in cassette shell (1) by fire retardant insulating encapsulation agent (9) together with base plate (10).
2. the coil of a kind of explosion-proof solenoid valve according to claim 1, it is characterized in that described tension disc (2) side view arcuately, two ends are provided with screw (8), in fixing post holes with screw-driving one end in cassette shell (1), wire (3) is fixed.
3. the coil of a kind of explosion-proof solenoid valve according to claim 1; it is characterized in that described electronic circuit board (4) is provided with current protector, filter capacitor, piezoresistance and temperature safety tube; and be electrically connected with electromagnetic coil (7) the two poles of the earth; wherein current protector, temperature safety tube and electromagnetic coil (7) are connected in series, and filter capacitor, piezoresistance and electromagnetic coil (7) are connected in parallel.
4. the coil of a kind of explosion-proof solenoid valve according to claim 1, it is characterized in that described electromagnetic coil (7) is also provided with concentrating flux plate (5) above, electromagnetic coil (7) is tightly pushed down by concentrating flux plate (5), is provided with the guide's head bore (6) inserting pilot head in the middle of described concentrating flux plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409163.0U CN204042142U (en) | 2014-07-18 | 2014-07-18 | A kind of coil of explosion-proof solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409163.0U CN204042142U (en) | 2014-07-18 | 2014-07-18 | A kind of coil of explosion-proof solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042142U true CN204042142U (en) | 2014-12-24 |
Family
ID=52242808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409163.0U Expired - Lifetime CN204042142U (en) | 2014-07-18 | 2014-07-18 | A kind of coil of explosion-proof solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204042142U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041755A (en) * | 2015-08-31 | 2015-11-11 | 衡阳合力工业车辆有限公司 | Hydraulic system and anti-explosion electromagnetic reversing valve |
| CN108194686A (en) * | 2017-12-29 | 2018-06-22 | 胡芳丽 | A kind of explosion-proof solenoid valve |
| CN108662151A (en) * | 2017-03-28 | 2018-10-16 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN110364326A (en) * | 2019-08-12 | 2019-10-22 | 上海派力防爆科技有限公司 | Energy saving low-power consumption explosion-proof electromagnetic coil |
-
2014
- 2014-07-18 CN CN201420409163.0U patent/CN204042142U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041755A (en) * | 2015-08-31 | 2015-11-11 | 衡阳合力工业车辆有限公司 | Hydraulic system and anti-explosion electromagnetic reversing valve |
| CN108662151A (en) * | 2017-03-28 | 2018-10-16 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN108194686A (en) * | 2017-12-29 | 2018-06-22 | 胡芳丽 | A kind of explosion-proof solenoid valve |
| CN110364326A (en) * | 2019-08-12 | 2019-10-22 | 上海派力防爆科技有限公司 | Energy saving low-power consumption explosion-proof electromagnetic coil |
| CN110364326B (en) * | 2019-08-12 | 2024-04-05 | 上海派力防爆科技有限公司 | Energy-saving low-power-consumption explosion-proof electromagnetic coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204042142U (en) | A kind of coil of explosion-proof solenoid valve | |
| CN201656470U (en) | Lightning protection circuit with overcurrent protection function | |
| CN208094158U (en) | A kind of intelligent distribution box branch monitoring device | |
| CN203552919U (en) | Voltage transformer with high and low voltage fuse protection function | |
| CN204270844U (en) | High security oil formula transformer with fusible core protective device | |
| CN208753241U (en) | A kind of miniature plug-in lightning protection device of combination SPD and SCB | |
| CN103794425B (en) | Earth leakage protective device | |
| CN217741584U (en) | Power strip with zero line disconnection protection function | |
| CN202145420U (en) | Double-fuse voltage transformer with elbow-shaped sockets | |
| CN2690698Y (en) | Anti-explosion electromagnetic valve coil | |
| CN201887398U (en) | High-voltage wall feed-through sleeve | |
| CN203166503U (en) | Non-follow current discharge tube module with trip function | |
| CN208401531U (en) | A kind of monitor-type overvoltage protection | |
| CN208337140U (en) | A kind of circuit board surge protector | |
| CN202473563U (en) | Overcurrent self-protecting transformer | |
| CN204928488U (en) | End cover subassembly structure of motor for circuit breaker | |
| CN214476921U (en) | Voltage transformer with circuit protection function | |
| CN204117831U (en) | A kind of microcomputer protecting device power-type current transformer | |
| CN207853047U (en) | A kind of low tension feed unit | |
| CN220652977U (en) | Power supply surge protector with arc extinguishing device | |
| CN219958760U (en) | Intrinsically safe explosion-proof electromagnetic coil | |
| CN217656782U (en) | Self-locking protection device for LED power supply | |
| CN203423024U (en) | Modified structure of electromagnet framework | |
| CN216698226U (en) | Temperature protector | |
| CN211958519U (en) | Automatic change instrument switch board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160922 Address after: 315504, Ningbo, Zhejiang province Fenghua City estuary private science and Technology Park, No. 18, Hui Road Patentee after: NINGBO KVEINA ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 315504 Zhejiang city of Fenghua province Jiangkou private science and Technology Park poly tide Road No. 18 Ningbo Kaiweina Electronic Technology Co. Ltd. Patentee before: Kang Xida |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |