CN103996568B - A kind of catalyst - Google Patents
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- CN103996568B CN103996568B CN201410021227.4A CN201410021227A CN103996568B CN 103996568 B CN103996568 B CN 103996568B CN 201410021227 A CN201410021227 A CN 201410021227A CN 103996568 B CN103996568 B CN 103996568B
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Abstract
The invention discloses a kind of safe and reliable and catalyst of length in service life.It includes insulation crust, lower fixed core, upper dynamic ferrum core, lower leverage and upper lever mechanism, lower fixed core is arranged on the intracavity bottom of insulation crust, lower fixed core is provided with coil, upper dynamic iron core is arranged on lower leverage, lower fixed core is provided with the one end at coil and is provided with return iron core spring, lower fixed core is connected with upper dynamic iron core by return iron core spring, upper lever mechanism and lower leverage connect, upper lever mechanism is provided with upper contact, the inner chamber of insulation crust is provided with the lower contact corresponding with upper contact, the outside of insulation crust is provided with some contact lead joints for connecting upper contact and lower contact, the top of insulation crust is provided with oil filler point.The invention has the beneficial effects as follows: oil filler point injects insulating oil and makes not produce spark during the adhesive of contact, is not susceptible to oxidation, is hardly damaged, can forever use, extend the service life of catalyst greatly.
Description
Technical field
The present invention relates to distribution correlative technology field, refer in particular to a kind of catalyst.
Background technology
Catalyst is divided into A.C. contactor (voltage AC) and D.C. contactor (voltage DC), and it is applied to electric power, distribution and electricity consumption.Catalyst broadly refers to utilize coil to flow through current induced magnetic field in industrial electro, makes contact closure, to reach to control the electrical equipment of load.In electrotechnics; because can fast shut-off exchange and direct current major loop and can being frequently switched on and the device of big current control circuit; so often applying to motor as control object; it also is used as controlling the electrical loads such as shop equipment, electric heater, machine-tool and various kinds electric power unit; catalyst can not only be switched on and off circuit, but also has low-voltage release guard effect.Catalyst control capability is big, it is adaptable to frequent operation and distant control.It it is one of critical elements in automatic control system.
The operation principle of catalyst is: after contactor coil is energized, coil current can produce magnetic field, and the magnetic field of generation makes fixed core produce the dynamic iron core of electromagnetic attraction attraction, and drive A.C. contactor point action, normally-closed contact disconnects, and normally opened contact closes, and both are linkages.When the coil is de-energized, electromagnetic attraction disappears, and armature discharges under the effect of release spring, makes contact restore, and normally opened contact disconnects, and normally-closed contact closes.The operation principle of D.C. contactor is somewhat similar with the principle of temperature switch.Existing catalyst, under long-term work, can produce spark, easily aoxidize, is easily damaged so that the contact of catalyst can not forever use, and shortens the service life of catalyst greatly during adhesive.
Chinese patent Authorization Notice No.: CN203103227U, authorized announcement date on July 31st, 2013, disclose the catalyst of a kind of band dust cap, catalyst is provided with through hole, the cover plate of dust cap is provided with first, second, third baffle plate, first, second, third cavity, the first positioning bar and the second positioning bar, wherein three adjacent walls of the second cavity are followed successively by the first baffle plate, third gear plate, second baffle, clamping it is provided with protruding in the 4th side of the second cavity, clamping raises into up big and down small shape, is provided with spacing gusset at third gear plate top；First positioning bar is positioned at the first cavity, and the second positioning bar is positioned at the 3rd cavity, and catalyst is provided with the first and second pits, the first and second shackle member；First, second positioning bar is against on the hole wall of first, second pit respectively, and spacing gusset inserts the first shackle member of catalyst, and clamping projection snaps in the second shackle member of catalyst.This invention is disadvantageous in that, this catalyst, after long-term work, can easily produce spark during the contact adhesive of catalyst, and the contact also resulting in catalyst easily aoxidizes and is easily damaged, the contact making catalyst can not forever use, and shortens the service life of catalyst greatly.
Summary of the invention
The present invention is to there is above-mentioned deficiency in prior art to overcome, it is provided that a kind of safe and reliable and catalyst of length in service life.
To achieve these goals, the present invention is by the following technical solutions:
nullA kind of catalyst，Including insulation crust、Lower fixed core、Upper dynamic iron core、Lower leverage and upper lever mechanism，Described lower fixed core、Lower fixed core、Upper dynamic iron core、Lower leverage and upper lever mechanism are installed in the inside of insulation crust，Described lower fixed core is arranged on the intracavity bottom of insulation crust，Described lower fixed core is provided with coil，Described upper dynamic iron core is arranged on lower leverage，Described lower fixed core is provided with the one end at coil and is provided with return iron core spring，Described lower fixed core is connected with upper dynamic iron core by return iron core spring，Described upper lever mechanism and lower leverage connect，Described upper lever mechanism is provided with upper contact，The inner chamber of described insulation crust is provided with the lower contact corresponding with upper contact，The outside of described insulation crust is provided with some contact lead joints for connecting upper contact and lower contact，The top of described insulation crust is provided with oil filler point.
This catalyst is when the coil is energized, owing to coil is placed on lower fixed core, inhale and upper dynamic iron core so lower fixed core produces magnetic field, upper dynamic iron core action drives lower leverage, and upper lever mechanism and lower leverage connect, upper lever mechanism action while of lower leverage moves when, so the upper contact in upper lever mechanism and the lower contact Guan Bi on insulation crust；When coil losing electricity, by the effect of return iron core spring so that above move iron core and separate with lower fixed core, thus by lower leverage and the linkage of upper lever mechanism so that upper contact disconnects with lower contact.This catalyst injects insulating oil by oil filler point in the inner chamber of this insulation crust, whole catalyst is worked when insulating oil lubricates for a long time, spark will not be produced when upper contact and lower contact adhesive, security performance is high, so upper contact and lower contact are just less likely to occur oxidation, is the most also not easy to damage, good reliability, the upper contact and the lower contact that make catalyst can forever use, and compared with common contact device, extend the service life of catalyst greatly.
As preferably, the intracavity bottom of described insulation crust is provided with the pedestal for installing lower fixed core, and the cross section of described lower fixed core is U-shaped, and described coil is arranged on one end of lower fixed core, described pedestal is provided with coil lead joint, described coil lead joint connecting wire circle.Simple in construction, easy for installation, the workload that effectively reduces a staff, improve production efficiency, cost-effective.
As preferably, described lower leverage includes sheer pole, upper dynamic iron core and lower connecting block, one end of described sheer pole is arranged in the inner chamber of insulation crust by lower lever alignment pin, the other end of described sheer pole connects upper dynamic iron core by lateral pin is fixing, the cross section of described dynamic iron core is U-shaped, the position of described dynamic iron core is corresponding with the position of lower fixed core, one end of described dynamic iron core is connected with lower fixed core by return iron core spring, and described lower connecting block is arranged on sheer pole and is provided with one end of dynamic iron core and opposing with upper dynamic iron core.Utilize lever principle to complement one another use, reduce the effect of power driving upper dynamic iron core to be allowed to lower fixed core, it is simple to above move iron core and the suction of lower fixed core and with separate.
As preferably, described upper lever mechanism includes cross tube, upper contiguous block and contact bar, one end of described cross tube is arranged in the inner chamber of insulation crust by upper lever alignment pin, one end of the other end connecting terminal bar of described cross tube, described upper contact is arranged on the other end of contact bar, and described upper contiguous block is arranged on cross tube and is connected with lower connecting block by upper and lower lever connecting pin.Upper lever mechanism, by the drive of lower leverage, moves the most together, so that the Guan Bi of upper contact and lower contact and disconnection, utilizes lever principle can either reduce the effect of power, can reasonably utilize again the facility above its displacement, simple in construction.
As preferably, in described insulation crust and be placed between upper lever mechanism and lower leverage and be provided with insulating barrier, the centre of described insulating barrier is provided with is easy to upper lever mechanism and the through hole of lower leverage connection, described lower contact is arranged on insulating barrier, described contact lead joint is arranged on the outward flange of insulating barrier, and described upper contact and lower contact are all connected with contact lead joint by flexible circuit conductor.On the one hand can be facilitated the action of upper lever mechanism by the design of insulating barrier by through-hole structure, on the other hand can effectively position the position of upper contact and lower contact, facilitate the disconnection between upper contact and lower contact and Guan Bi.
As preferably, a flexible circuit conductor part for described connection upper contact is placed in the inner chamber of insulation crust, another part plastic packaging is connected in insulating barrier and with contact lead joint, and the whole plastic packaging of flexible circuit conductor of described connection lower contact is connected in insulating barrier and with contact lead joint.Can effectively improve the safety and reliability of flexible circuit conductor, it is possible to indirectly improve the service life of this catalyst.
As preferably, described contact bar is flexibly connected with cross tube, and described contact bar connects one end of cross tube and is provided with pressure contact spring, and described cross tube is provided with and the limited block pressing contact spring to match.It is designed to improve upper contact and the contact performance of lower contact by pressure contact spring, while upper contact and lower contact close, effectively prevents between upper contact and lower contact because the effect of insulating oil causes loose contact, improve the sensitivity of this catalyst.
As preferably, the cross section of described insulation crust is convex, described insulation crust is divided into upper and lower two parts by insulating barrier, wherein top is divided into contact cavities, bottom is divided into iron core chamber, and contact cavities is connected with iron core chamber by the through hole on insulating barrier, and described oil filler point is placed in the center, top of contact cavities, being provided with O RunddichtringO in described oil filler point, described oil filler point is matched with O RunddichtringO by sealing bolt and makes it seal to be fastenedly connected.Matched so that oil filler point is oil-proof with O RunddichtringO by sealing bolt, and whole insulation crust has the effect of circuit dust-proof, damp proof, anti-corruption so that whole catalyst safety coefficient is high, and can effectively extend the service life of catalyst.
As preferably, the bottom even of described insulation crust is distributed some catalyst installing holes.The installation being easy to catalyst is fixed.
The invention has the beneficial effects as follows: inject insulating oil by oil filler point, this catalyst works when insulating oil lubricates for a long time, spark will not be produced when upper contact and lower contact adhesive, oxidation is less likely to occur, it is not easy to damage, the upper contact and the lower contact that make catalyst can forever use, and extend the service life of catalyst greatly；Matched so that oil filler point is oil-proof with O RunddichtringO by sealing bolt, there is the effect of circuit dust-proof, damp proof, anti-corruption so that whole catalyst safety coefficient is high, and unfailing performance is good；Additionally simple in construction, easy for installation, the workload that effectively reduces a staff, improve production efficiency, cost-effective.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the another kind of structural representation of the present invention.
nullIn figure: 1. sealing bolt，2.O RunddichtringO，3. contact cavities，4. pressure contact spring，5. cross tube，6. flexible circuit conductor，7. upper lever alignment pin，8. go up contiguous block，9. upper and lower lever connecting pin，10. lower connecting block，11. insulation crusts，12. times lever alignment pins，13. sheer poles，14. coil lead joints，15. pedestals，16. catalyst installing holes，17. times fixed cores，18. coils，19. return iron core springs，20. iron core chambeies，Dynamic iron core on 21.，22. lateral pins，23. contact lead joints，24. lower contacts，25. upper contacts，26. contact bar，27. through holes，28. oil filler points，29. upper lever mechanisms，30. times leverages，31. limited blocks，32. insulating barriers，33. contact dividing plates.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
nullSuch as Fig. 1、In embodiment described in Fig. 2，A kind of catalyst，Including insulation crust 11、Lower fixed core 17、Upper dynamic iron core 21、Lower leverage 30 and upper lever mechanism 29，Lower fixed core 17、Lower fixed core 17、Upper dynamic iron core 21、Lower leverage 30 and upper lever mechanism 29 are installed in the inside of insulation crust 11，Lower fixed core 17 is arranged on the intracavity bottom of insulation crust 11，Lower fixed core 17 is provided with coil 18，Upper dynamic iron core 21 is arranged on lower leverage 30，Lower fixed core 17 is provided with the one end at coil 18 and is provided with return iron core spring 19，Lower fixed core 17 is connected with upper dynamic iron core 21 by return iron core spring 19，Upper lever mechanism 29 and lower leverage 30 connect，Upper lever mechanism 29 is provided with upper contact 25，The inner chamber of insulation crust 11 is provided with the lower contact 24 corresponding with upper contact 25，The outside of insulation crust 11 is provided with some contact lead joints 23 for connecting upper contact 25 and lower contact 24，It is equipped with contact dividing plate 33 between each adjacent contact lead joint 23，The top of insulation crust 11 is provided with oil filler point 28，The bottom even of insulation crust 11 is distributed some catalyst installing holes 16.The intracavity bottom of insulation crust 11 is provided with the pedestal 15 for installing lower fixed core 17, and the cross section of lower fixed core 17 is U-shaped, and coil 18 is arranged on one end of lower fixed core 17, and pedestal 15 is provided with coil lead joint 14, and coil lead joint 14 connects coil 18.
Lower leverage 30 includes sheer pole 13, upper dynamic iron core 21 and lower connecting block 10, one end of sheer pole 13 is arranged in the inner chamber of insulation crust 11 by lower lever alignment pin 12, the other end of sheer pole 13 connects upper dynamic iron core 21 by lateral pin 22 is fixing, the cross section of upper dynamic iron core 21 is U-shaped, the position of upper dynamic iron core 21 is corresponding with the position of lower fixed core 17, one end of upper dynamic iron core 21 is connected with lower fixed core 17 by return iron core spring 19, lower connecting block 10 is arranged on sheer pole 13 and is provided with one end of dynamic iron core 21 and opposing with upper dynamic iron core 21, lower connecting block 10 is integrated with sheer pole 13.Upper lever mechanism 29 includes cross tube 5, upper contiguous block 8 and contact bar 26, one end of cross tube 5 is arranged in the inner chamber of insulation crust 11 by upper lever alignment pin 7, one end of the other end connecting terminal bar 26 of cross tube 5, upper contact 25 is arranged on the other end of contact bar 26, upper contiguous block 8 is arranged on cross tube 5 and is connected with lower connecting block 10 by upper and lower lever connecting pin 9, upper contiguous block 8 is integrated with cross tube 5, contact bar 26 is flexibly connected with cross tube 5, contact bar 26 connects one end of cross tube 5 and is provided with pressure contact spring 4, cross tube 5 is provided with and the limited block 31 pressing contact spring 4 to match.
In insulation crust 11 and be placed between upper lever mechanism 29 and lower leverage 30 and be provided with insulating barrier 32, the centre of insulating barrier 32 is provided with is easy to upper lever mechanism 29 and the through hole 27 of lower leverage 30 connection, lower contact 24 is arranged on insulating barrier 32, contact lead joint 23 is arranged on the outward flange of insulating barrier 32, upper contact 25 and lower contact 24 and is all connected with contact lead joint 23 by flexible circuit conductor 6.Flexible circuit conductor 6 part connecting upper contact 25 is placed in the inner chamber of insulation crust 11, another part plastic packaging is connected in insulating barrier 32 and with contact lead joint 23, and the whole plastic packaging of flexible circuit conductor 6 of connection lower contact 24 is connected in insulating barrier 32 and with contact lead joint 23.The cross section of insulation crust 11 is convex, insulation crust 11 is divided into upper and lower two parts by insulating barrier 32, wherein top is divided into contact cavities 3, bottom is divided into iron core chamber 20, contact cavities 3 is connected with iron core chamber 20 by the through hole 27 on insulating barrier 32, oil filler point 28 is placed in the center, top of contact cavities 3, is provided with O RunddichtringO 2 in oil filler point 28, and oil filler point 28 is matched with O RunddichtringO 2 by sealing bolt 1 and makes it seal to be fastenedly connected.
nullThe operation principle of this catalyst is to access power supply by coil lead joint 14 coil 18 is energized，Owing to coil 18 is placed on one end of U-shaped lower fixed core 17，Inhale and upper dynamic iron core 21 so lower fixed core 17 produces magnetic field，Rotate centered by lower leverage less than 30 lever alignment pin 12，While the upper dynamic downward fixed core 17 of iron core 21 is drawn close，Return iron core spring 19 is compressed，And lower connecting block 10 and upper contiguous block 8 are connected by upper and lower lever connecting pin 9，Upper lever mechanism 29 also action while the lower downward fixed core 17 of leverage 30 is drawn close，Upper lever mechanism 29 rotates centered by upper lever alignment pin 7，The upper contact 25 in contact bar 26 lower contact 24 on insulating barrier 32 is close，Until closing with the lower contact 24 on insulating barrier 32，Compress upper contact 25 further by pressure contact spring 4 simultaneously and lower contact 24 makes it be fully contacted；Instantly during coil 18 dead electricity on fixed core 17, the return iron core spring 19 of compression is released, dynamic iron core 21 is separated with lower fixed core 17, upper dynamic iron core 21 drives lower leverage 30 to move, and lower leverage 30 and upper lever mechanism 29 are linkages so that the upper contact 25 in upper lever mechanism 29 separates with the lower contact 24 on insulating barrier 32.And this catalyst injects insulating oil by oil filler point 28 in the inner chamber of this insulation crust 11, owing to the centre of insulating barrier 32 is provided with through hole 27, whole catalyst is worked when insulating oil lubricates for a long time, so spark will not be produced when upper contact 25 and lower contact 24 adhesive, upper contact 25 and lower contact 24 are just less likely to occur oxidation, the most also it is not easy to damage, security performance is high, good reliability, the upper contact 25 and the lower contact 24 that make catalyst can forever use, compared with common contact device, extend the service life of catalyst greatly.On the other hand matched so that oil filler point 28 is oil-proof with O RunddichtringO 2 by sealing bolt 1, there is the effect of circuit dust-proof, damp proof, anti-corruption so that whole catalyst safety coefficient is high, and unfailing performance is good.
Claims (7)
1. a catalyst, is characterized in that, including insulation crust (11), lower fixed core (17), upper dynamic iron core (21),
Lower leverage (30) and upper lever mechanism (29), described lower fixed core (17), upper dynamic iron core (21),
Lower leverage (30) and upper lever mechanism (29) are installed in the inside of insulation crust (11), institute
The lower fixed core (17) stated is arranged on the intracavity bottom of insulation crust (11), described lower fixed core (17)
Being provided with coil (18), described upper dynamic iron core (21) is arranged on lower leverage (30), described
One end that lower fixed core (17) is provided with coil (18) place is provided with return iron core spring (19), described
Lower fixed core (17) is connected with upper dynamic iron core (21) by return iron core spring (19), and described is upper
Leverage (29) and lower leverage (30) connect, and described upper lever mechanism (29) is provided with
Upper contact (25), the inner chamber of described insulation crust (11) be provided with corresponding with upper contact (25) under
Contact (24), the outside of described insulation crust (11) be provided with some for connect upper contact (25) and under
The contact lead joint (23) of contact (24), the top of described insulation crust (11) is provided with oil filler point
(28), described lower leverage (30) includes sheer pole (13), upper dynamic iron core (21) and lower company
Connecing block (10), one end of described sheer pole (13) is arranged on outside insulation by lower lever alignment pin (12)
In the inner chamber of shell (11), the other end of described sheer pole (13) connects by lateral pin (22) is fixing
Dynamic iron core (21), the cross section of described dynamic iron core (21) is U-shaped, described dynamic iron core (21)
Position corresponding with the position of lower fixed core (17), one end of described dynamic iron core (21) is passed through back
Position iron core spring (19) is connected with lower fixed core (17), and described lower connecting block (10) is arranged on down
Cross bar (13) is provided with one end of dynamic iron core (21) and opposing with upper dynamic iron core (21), and described is upper
Leverage (29) includes cross tube (5), upper contiguous block (8) and contact bar (26), described upper horizontal stroke
One end of bar (5) is arranged in the inner chamber of insulation crust (11) by upper lever alignment pin (7), institute
Stating one end of other end connecting terminal bar (26) of cross tube (5), described upper contact (25) is installed
On the other end of contact bar (26), described upper contiguous block (8) be arranged on cross tube (5) upper and
It is connected with lower connecting block (10) by upper and lower lever connecting pin (9).
A kind of catalyst the most according to claim 1, is characterized in that, the inner chamber of described insulation crust (11)
Bottom is provided with the pedestal (15) for installing lower fixed core (17), described lower fixed core (17) transversal
Face is U-shaped, and described coil (18) is arranged on one end of lower fixed core (17), described pedestal (15)
Being provided with coil lead joint (14), described coil lead joint (14) connects coil (18).
A kind of catalyst the most according to claim 1 and 2, is characterized in that, described insulation crust (11)
In and be placed between upper lever mechanism (29) and lower leverage (30) and be provided with insulating barrier (32), institute
State the centre of insulating barrier (32) to be provided with and be easy to upper lever mechanism (29) and lower leverage (30) even
The through hole (27) connect, described lower contact (24) is arranged on insulating barrier (32), described contact
Pigtail splice (23) is arranged on the outward flange of insulating barrier (32), described upper contact (25) and under
Contact (24) is all connected with contact lead joint (23) by flexible circuit conductor (6).
A kind of catalyst the most according to claim 3, is characterized in that, described connection upper contact (25) soft
Wire (6) part is placed in the inner chamber of insulation crust (11), and another part plastic packaging is in insulating barrier (32)
In and be connected with contact lead joint (23), the flexible circuit conductor (6) of described connection lower contact (24) is whole
Plastic packaging is connected in insulating barrier (32) and with contact lead joint (23).
A kind of catalyst the most according to claim 1, is characterized in that, described contact bar (26) and upper horizontal stroke
Bar (5) is flexibly connected, and described contact bar (26) connects one end of cross tube (5) and is provided with pressure contact
Spring (4), described cross tube (5) is provided with and the limited block (31) pressing contact spring (4) to match.
A kind of catalyst the most according to claim 4, is characterized in that, described insulation crust (11) transversal
Face is convex, and described insulation crust (11) is divided into upper and lower two parts by insulating barrier (32), its
Middle and upper part is divided into contact cavities (3), and bottom is divided into iron core chamber (20), contact cavities (3) to pass through insulating barrier
(32) through hole (27) on connects with iron core chamber (20), and described oil filler point (28) is placed in contact
The center, top in chamber (3), is provided with O RunddichtringO (2) in described oil filler point (28), described
Oil filler point (28) is matched with O RunddichtringO (2) by sealing bolt (1) and makes it seal fastening even
Connect.
A kind of catalyst the most according to claim 1 and 2, is characterized in that, described insulation crust (11)
Bottom even is distributed some catalyst installing holes (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021227.4A CN103996568B (en) | 2014-01-17 | 2014-01-17 | A kind of catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021227.4A CN103996568B (en) | 2014-01-17 | 2014-01-17 | A kind of catalyst |
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| Publication Number | Publication Date |
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| CN103996568A CN103996568A (en) | 2014-08-20 |
| CN103996568B true CN103996568B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410021227.4A Active CN103996568B (en) | 2014-01-17 | 2014-01-17 | A kind of catalyst |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970266A (en) * | 2018-09-30 | 2020-04-07 | 泰科电子(深圳)有限公司 | Electromagnetic relay |
| CN110970268A (en) * | 2018-09-30 | 2020-04-07 | 泰科电子(深圳)有限公司 | Electromagnetic relay |
| CN113483386B (en) * | 2021-06-08 | 2022-08-09 | 慈溪市新秀丽电器有限公司 | Safety switch for electric heater and electric heater |
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| GB951326A (en) * | 1959-07-17 | 1964-03-04 | Cem Comp Electro Mec | Improvements in or relating to electromagnetic contactors |
| CN2540023Y (en) * | 2002-02-04 | 2003-03-12 | 卢能晓 | Oil-immersed type relay |
| CN201196936Y (en) * | 2008-05-17 | 2009-02-18 | 朱建新 | DC contactor |
| CN202585261U (en) * | 2012-05-02 | 2012-12-05 | 镇江天丰电器有限公司 | Oil-immersed direct current contactor |
| CN203721642U (en) * | 2014-01-17 | 2014-07-16 | 黄洪胜 | Contactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004022203A (en) * | 2002-06-12 | 2004-01-22 | Fuji Electric Holdings Co Ltd | Overload relay |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB951326A (en) * | 1959-07-17 | 1964-03-04 | Cem Comp Electro Mec | Improvements in or relating to electromagnetic contactors |
| CN2540023Y (en) * | 2002-02-04 | 2003-03-12 | 卢能晓 | Oil-immersed type relay |
| CN201196936Y (en) * | 2008-05-17 | 2009-02-18 | 朱建新 | DC contactor |
| CN202585261U (en) * | 2012-05-02 | 2012-12-05 | 镇江天丰电器有限公司 | Oil-immersed direct current contactor |
| CN203721642U (en) * | 2014-01-17 | 2014-07-16 | 黄洪胜 | Contactor |
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| CN103996568A (en) | 2014-08-20 |
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Effective date of registration: 20221014 Address after: Building 143, Fulin Community, No. 216-1, Jiahe South Road, Jianyang District, Nanping City, Fujian Province, 354207 Patentee after: Nanping City Jianyang District Botan Electronic Technology Co.,Ltd. Address before: No. 109, Xiapeng Village, Xiaohu Town, Jianyang City, Nanping City, Fujian Province, 354207 Patentee before: Huang Hongsheng |
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