CN101864872A - Noiseless electromagnetic lock for preventing misoperation of high-pressure switchgear - Google Patents
Noiseless electromagnetic lock for preventing misoperation of high-pressure switchgear Download PDFInfo
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- CN101864872A CN101864872A CN 201010197366 CN201010197366A CN101864872A CN 101864872 A CN101864872 A CN 101864872A CN 201010197366 CN201010197366 CN 201010197366 CN 201010197366 A CN201010197366 A CN 201010197366A CN 101864872 A CN101864872 A CN 101864872A
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Abstract
The invention relates to a noiseless electromagnetic lock for preventing the misoperation of a a high-pressure switchgear, belonging to an electromagnetic lock for a high-pressure switchgear and aiming at the problem of environmental pollution caused by electromagnetic interference noise by a traditional electromagnetic lock when accessing an AC power supply. The noiseless electromagnetic lock for preventing the misoperation of the high-pressure switchgear comprises a movable lock plunger assembly, an electromagnet assembly, a travel switch, an unlocking assembly and a locking assembly and is characterized in that a rectifier element is arranged in an electromagnet coil circuit in the electromagnet assembly. Proved by trials, the invention has the technical operation scheme in accordance with five-prevention requirements and has the advantages of reasonable structure, safety and reliability; the electromagnetic lock in operation does not produce noise or generate electromagnetic interference noise to pollute the environment and provides operators on duty with a quiet working environment particularly at quiet night.
Description
Technical field: the invention belongs to the electromagnetic lock that high voltage switchgear equipment is used, particularly a kind of Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using.
Background technology:, must just can reach: prevent mistake drawing switch, prevent on-load drawing isolation switch, prevent mistakenly entering charged chamber, prevent charged hanging ground-wire, prevent " five is anti-" requirement of switching on earth wire in strict accordance with the safety operation program of industry regulation to the operation of high voltage switchgear equipment.And the electromagnetic lock that existing various high voltage switchgear equipment is used adapts to this code requirement just, with cooperating of the frame for movement of lockset and key, forcibly make the operating personnel can only be, thereby guarantee the enforcement that " five is anti-" requires according to set procedure operation high voltage switchgear equipment.
Documents 1 is the patent application case of publication number CN101230768, discloses a kind of electromagnetic lock, comprises lock frame, electromagnetic coil, the conducting magnet core that has iron core return-spring, dead bolt and pintle hook lock; It is characterized in that: described dead bolt has a locking trough that is used for fastening with pintle hook lock, one and is used for locking projection and a locating convex block that is used to limit dead bolt revolution stroke of fastening with conducting magnet core in the form of sheets; Dead bolt is installed on an end of conducting magnet core by a cantilever perpendicular to its sheet plane, and described locking projection and conducting magnet core one end fasten, and described locking trough is mutually opposed with pintle hook lock; Cantilever is with a dead bolt back-moving spring outward, and an end of this dead bolt back-moving spring is connected with dead bolt, and the other end is connected with the lock frame.
Document 1 disclosed electromagnetic lock structure is complicated, causes operational reliability to descend; Secondly, the electromagnetic coil of document 1 disclosed electromagnetic lock can send the electromagnetic interference noise and cause environment pollution when inserting AC power commonly used, and is especially at environment quiet night, even more serious to the harm that operating personnel on duty cause.
This shows that design and a kind of meeting " five anti-" require, the Noiseless electromagnetic lock that misoperation of high-pressure switchgear is used from being necessary in rational in infrastructure, reliable preventing.
Summary of the invention: the objective of the invention is to overcome the deficiencies in the prior art, design and a kind of meeting " five anti-" require, rational in infrastructure, reliable prevent the Noiseless electromagnetic lock that misoperation of high-pressure switchgear is used.
The present invention seeks to realize like this: a kind of Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using, comprise the lock housing body, be matched with the lock panel of lock housing body, before it is characterized in that the design of lock housing body internal upper part has, rearward end is passed the movable lock bolt components of lock housing body sidewall, right lower quadrant in the lock housing body, design has the electromagnet assembly that is matched with movable lock bolt components, lower left quarter in the lock housing body, design has the travel switch that is matched with electromagnet assembly, middle part in the lock housing body, design has the assembly of unblanking that is matched with travel switch and movable lock bolt components, on the interior movable lock bolt components of lock housing body, design has unlock component near back side of panel, is in series with rectifier cell in the electromagnet coil circuit in the electromagnet assembly.In the circuit of electromagnet coil, insert rectifier element,, make the alternating current of the electromagnet coil of originally flowing through become direct current, thereby also just can not send the electromagnetic interference noise as bridge rectifier.
The object of the invention can also take following technical measures to realize:
Described movable lock bolt components is passed the movable locking bolt of lock housing body sidewall by forward and backward end, be socketed on the back-moving spring of movable locking bolt rearward end, movable locking bolt neck is provided with spacing rank near electromagnetic lock assembly place, and movable locking bolt middle part is provided with near the assembly place of unblanking and stirs the groove composition.
Described electromagnet assembly is matched with the electromagnet rear assembly of electromagnet front assembly by the electromagnet front assembly that is matched with the spacing rank of movable locking bolt neck, forms around the electromagnet coil of electromagnet front and rear portions assembly.Described electromagnet front assembly passes and is fixed in the fore-set at electromagnet cylinder center by the electromagnet cylinder, and socket and the limiting plate that is fixed in the fore-set front end are formed.Described electromagnet rear assembly is identical with the electromagnet cylinder by external diameter, the tubular electromagnetic actuation body of inner chamber, one end presses closer in the fore-set rear end, is positioned at the top spring of electromagnetic actuation intracoelomic cavity, and the clamp that be positioned at the top spring other end, is fixed in electromagnetic actuation body rear end is formed.When electromagnetic lock was in locking states, clamp withstood the top spring, and the top spring presses closer in the fore-set rear end, and the fore-set front end that stretches out in limiting plate is stuck in the spacing rank of movable locking bolt neck near electromagnetic lock assembly place just, and movable locking bolt is lockable and can't moves; When but electromagnetic lock is in opening, alive electromagnet coil produces electromagnetic force, with the electromagnet cylinder adhesive of electromagnet front assembly on the electromagnetic actuation body of electromagnet rear assembly, after the electromagnet cylinder that moves drive the fore-set that is fixed in its center, the fore-set front end moves behind the spacing rank of movable locking bolt neck near the electromagnetic lock assembly, movable locking bolt is not lockable, and electromagnetic lock can be opened smoothly under the cooperation of the assembly of unblanking.
Described travel switch is by the Switch main body spare that is series at electromagnet coil, and the switch push rod that is matched with the assembly of unblanking is formed.
The described fan-shaped pressing board of assembly of unblanking by the switch push rod that is matched with travel switch, fan-shaped pressing board is fixed in the column core bar of unblanking at its middle part, its upper end of core bar of unblanking is commonly referred to button, be socketed on the hollow barrel core bar cover of the core bar periphery of unblanking versatilely, be positioned at core bar cover middle part sidewall, fan-shaped pressing board is carried out spacing stopper slot, at the stage clip of unblanking between core bar lower end and the core bar cover bottom, be fixed in core bar cover bottom, its end snaps in the driving lever of stirring groove of movable lock bolt components, is socketed on the core bar upper periphery of unblanking versatilely, and the handle that is fixed in the core bar set upper side is formed.Operating personnel are when carrying out unlock operation, press its upper end of core bar of unblanking earlier, promptly press the button, be fixed in its middle part fan-shaped pressing board press down thereupon travel switch the switch push rod, travel switch is connected the electric current through electromagnet coil, electromagnet coil produces electromagnetic force, with the electromagnet cylinder adhesive of electromagnet front assembly on the electromagnetic actuation body of electromagnet rear assembly, after the electromagnet cylinder that moves drive the fore-set that is fixed in its center, the fore-set front end moves behind the spacing rank of movable locking bolt neck near electromagnet assembly, movable locking bolt is not lockable, swing handle, the core bar cover that is fixed on the handle rotates thereupon, is positioned at core bar cover bottom, the driving lever of stirring groove that its end snaps in movable locking bolt also rotates thereupon, move after ordering about movable locking bolt, electromagnetic lock is opened smoothly.
Described unlock component is by the lock body of separating that is fixed in back side of panel, separate lock body and be close to the release keyhole that the panel place is provided with, separate lock body near the side of electromagnet front assembly, be provided with the release keyhole become vertical communicate separate the key groove, the unlock key that is matched with the release keyhole and separates the key groove is formed.No current exists in the electromagnetic lock circuit, in the time of again must emergency release, from the caretaker unlock key is close to the release keyhole from lock panel, insert in the unlock hole of offering, through separate lock body be close to release keyhole that the panel place is provided be inserted into the release keyhole become vertical communicate separate the key trench bottom, rotate unlock key, the raised body of its head is oppressed the socket of electromagnet front assembly and is fixed in the limiting plate of fore-set front end, the fore-set that is fixed on the limiting plate moves behind the spacing rank of movable locking bolt neck near the electromagnetic lock assembly with limiting plate thereupon, movable locking bolt is not lockable, swing handle, the core bar cover that is fixed on the handle rotates thereupon, be positioned at core bar cover bottom, the driving lever of stirring groove that its end snaps in movable locking bolt also rotates thereupon, move after ordering about movable locking bolt, electromagnetic lock is opened smoothly.
Be close to release keyhole place on the described lock panel, offer and the on all four unlock hole of release keyhole shape, lock panel is close to the electromagnet coil place and is provided with and is electrically connected at indicator lamp in the electromagnet coil circuit, lock panel offers grip hole near place, core bar set upper side, lock panel is provided with handle rotation direction arrow symbol near the grip hole place, and four jiaos of back sides of lock panel are provided with and install and fix the securing member that electromagnetic lock is used.
The invention process obtains prevents the Noiseless electromagnetic lock that misoperation of high-pressure switchgear is used, and demonstrates following beneficial effect through on probation:
1, its technical operation scheme meets " five is anti-" requirement, and is rational in infrastructure, safe and reliable.Indicator lamp on the electromagnetic lock panel is bright, show that high voltage switchgear equipment such as high-tension switch cabinet stop normal operation, there is not high-tension electricity in the high voltage switchgear equipment, opening the cabinet door as need carries out the operation that " five anti-" require and satisfies the requirements, operating personnel are when carrying out unlock operation, press its upper end of core bar of unblanking earlier, promptly press the button, be fixed in its middle part fan-shaped pressing board press down thereupon travel switch the switch push rod, travel switch is connected the electric current through electromagnet coil, electromagnet coil produces electromagnetic force, with the electromagnet cylinder adhesive of electromagnet front assembly on the electromagnetic actuation body of electromagnet rear assembly, after the electromagnet cylinder that moves drive the fore-set that is fixed in its center, the fore-set front end moves behind the spacing rank of movable locking bolt neck near the electromagnetic lock assembly, movable locking bolt is not lockable; Swing handle, the core bar cover that is fixed on the handle rotates thereupon, is positioned at the driving lever of stirring groove that core bar cover bottom, its end snap in movable locking bolt and also rotates thereupon, moves after ordering about movable locking bolt, and electromagnetic lock is opened smoothly.Indicator lamp on the electromagnetic lock panel is not bright, show that high voltage switchgear equipment such as high-tension switch cabinet normally move, have high-tension electricity in the high voltage switchgear equipment, do not possess and carry out the operating condition that " five is anti-" requires, the operator can't open high-tension switch cabinet cabinet door, thereby has guaranteed the practical enforcement that " five is anti-" requires forcibly; Open the cabinet door as need and overhaul, the maintainer must enable the unlock key that upper management person just holds, and could open the cabinet door by the electromagnetic lock unlock assembly.
2, realized electromagnetic lock operation noiseless, can not send the electromagnetic interference noise and cause environment pollution, especially, given the operators quiet working environment at environment quiet night.Compare with documents 1 disclosed prior art, in the circuit of electromagnet coil, insert rectifier element, as bridge rectifier, make the alternating current of the electromagnet coil of originally flowing through become direct current, thereby just can not send the electromagnetic interference noise yet, must give the operators quiet working environment.
Description of drawings: Fig. 1 is the schematic diagram that meets thematic structure of the present invention; Fig. 2 is the schematic side view of thematic structure of the present invention; Fig. 3 is the lock panel structural representation.Among the figure: lock housing 1; Movable lock bolt components 2: movable locking bolt 21, back-moving spring 22, spacing rank 23, stir groove 24; Electromagnet assembly 3: electromagnet front assembly 31, electromagnet cylinder 311, fore-set 312, limiting plate 313, electromagnet rear assembly 32, electromagnetic actuation body 321, top spring 322, clamp 323, electromagnet coil 33, rectifier cell 34; Travel switch 4: Switch main body spare 41, switch push rod 42; The assembly 5 of unblanking: fan-shaped pressing board 51, lock core pole 52, core bar cover 53, stopper slot 54, stage clip 55, driving lever 56, handle 57; Unlock component 6: separate lock body 61, release keyhole 62, separate key groove 63; Lock panel 7: unlock hole 71, indicator lamp 72, grip hole 73, arrow 74, securing member 75.Fig. 4 is an electromagnetic lock circuit connection schematic diagram.Among the figure: indicator lamp D, current-limiting resistance R, travel switch K, electromagnet coil T, rectifier Z.
The specific embodiment: implementation detail of the present invention is described as follows below in conjunction with symbol figure:
As Fig. 1,2, shown in 3, a kind of Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using, comprise lock housing body 1, be matched with the lock panel 7 of lock housing body, before it is characterized in that the design of lock housing body internal upper part has, rearward end is passed the movable lock bolt components 2 of lock housing body sidewall, right lower quadrant in the lock housing body, design has the electromagnet assembly 3 that is matched with movable lock bolt components, lower left quarter in the lock housing body, design has the travel switch 4 that is matched with electromagnet assembly, middle part in the lock housing body, design has the assembly 5 of unblanking that is matched with travel switch and movable lock bolt components, on the interior movable lock bolt components of lock housing body, design has unlock component 6 near back side of panel, is provided with rectifier cell 34 in electromagnet coil 33 circuit in the electromagnetic lock assembly.
Described movable lock bolt components 2 is passed the movable locking bolt 21 of lock housing body sidewall by forward and backward end, be socketed on the back-moving spring 22 of movable locking bolt rearward end, movable locking bolt neck is provided with spacing rank 23 near the electromagnet assembly place, and movable locking bolt middle part is provided with near the assembly place of unblanking and stirs groove 24 compositions.
Described electromagnet assembly 3 is matched with the electromagnet rear assembly 32 of electromagnet front assembly by the electromagnet front assembly 31 that is matched with the spacing rank of movable locking bolt neck, forms around the electromagnet coil 33 of electromagnet front and rear portions assembly.
Described travel switch 4 is by the Switch main body spare that is series at electromagnet coil 41, and the switch push rod 42 that is matched with the assembly of unblanking is formed.
The described fan-shaped pressing board 51 of assembly 5 of unblanking by the switch push rod that is matched with travel switch, fan-shaped pressing board is fixed in the column core bar 52 of unblanking at its middle part, be socketed on the hollow barrel core bar cover 53 of the core bar periphery of unblanking versatilely, be positioned at core bar cover middle part sidewall, fan-shaped pressing board is carried out spacing stopper slot 54, at the stage clip 55 of unblanking between core bar lower end and the core bar cover bottom, be fixed in core bar cover bottom, its end snaps in the driving lever 56 of stirring groove on the movable locking bolt, be socketed on the handle 57 of unblanking the core bar upper periphery and being fixed in the core bar set upper side versatilely and form.
Described unlock component 6 is separated lock body 61 by what be fixed in back side of panel, separate lock body and be close to the release keyhole 62 that the panel place is provided with, separate lock body near the side of electromagnet front assembly, be provided with the release keyhole become vertical communicate separate key groove 63, the unlock key that is matched with the release keyhole and separates the key groove is formed.
Be close to release keyhole place on the described lock panel 7, offer and the on all four unlock hole 71 of release keyhole shape, lock panel is close to the electromagnet coil place and is provided with and is electrically connected at indicator lamp 72 in the electromagnet coil circuit, lock panel offers grip hole 73 near place, core bar set upper side, lock panel is provided with handle rotation direction arrow symbol 74 near the grip hole place, and four jiaos of back sides of lock panel are provided with and install and fix the securing member 75 that electromagnetic lock is used.
Described electromagnet front assembly 31 passes and is fixed in the fore-set 312 at electromagnet cylinder center by electromagnet cylinder 311, and socket and the limiting plate 313 that is fixed in the fore-set front end are formed.
Described electromagnet rear assembly 32 is identical with the electromagnet cylinder by external diameter, the tubular electromagnetic actuation body 321 of inner chamber, one end presses closer in the fore-set rear end, is positioned at the top spring 322 of electromagnetic actuation intracoelomic cavity, and the clamp 323 that be positioned at the top spring other end, is fixed in electromagnetic actuation body rear end is formed.
As shown in Figure 4, described Z rectifier cell 34 is selected bridge rectification device for use.As commercially available DB107 bridge rectifier.Among the figure, when travel switch K was in normally open, the direct current behind the bridge rectifier was lighted indicator lamp D, but can't be started electromagnet after current-limiting resistance R current limliting, with the Weak current that is not enough to start electromagnet flow through indicator lamp D, electromagnet coil T; When travel switch K is in closure state, the overwhelming majority in the direct current behind the bridge rectifier electromagnet coil T that directly flows through, electromagnet is activated adhesive, the adhesive of electromagnet cylinder is on the electromagnetic actuation body, after the electromagnet cylinder that moves drive the fore-set that is fixed in its center, the fore-set front end moves behind the spacing rank of movable locking bolt neck near the electromagnetic lock assembly, and movable locking bolt is not lockable; Swing handle, the core bar cover that is fixed on the handle rotates thereupon, is positioned at the driving lever of stirring groove that core bar cover bottom, its end snap in movable locking bolt and also rotates thereupon, moves after ordering about movable locking bolt, and electromagnetic lock is opened smoothly.
The invention process obtains prevents the Noiseless electromagnetic lock that misoperation of high-pressure switchgear is used, and the cabinet door lock that is mainly used in the high-tension switch cabinet that is applicable to that " five is anti-" requires closes and opens.Only need on mounting means, to change a little, be suitable as handcart cabinet isolating switch, disconnecting link gauge tap, grounding wire gauge tap in " five is anti-" requirement equally.
Claims (10)
1. Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using, comprise lock housing body (1), be matched with the lock panel (7) of lock housing body, before it is characterized in that the design of lock housing body internal upper part has, rearward end is passed the movable lock bolt components (2) of lock housing body sidewall, right lower quadrant in the lock housing body, design has the electromagnet assembly (3) that is matched with movable lock bolt components, lower left quarter in the lock housing body, design has the travel switch (4) that is matched with electromagnet assembly, middle part in the lock housing body, design has the assembly of unblanking (5) that is matched with travel switch and movable lock bolt components, on the interior movable lock bolt components of lock housing body, design has unlock component (6) near back side of panel, is in series with rectifier cell (34) in the electromagnet coil in the electromagnetic lock assembly (33) circuit.
2. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1, it is characterized in that described movable lock bolt components (2) is passed the movable locking bolt (21) of lock housing body sidewall by forward and backward end, be socketed on the back-moving spring (22) of movable locking bolt rearward end, movable locking bolt neck is provided with spacing rank (23) near the electromagnet assembly place, and movable locking bolt middle part is provided with near the assembly place of unblanking and stirs groove (24) composition.
3. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1, it is characterized in that described electromagnet assembly (3) is by the electromagnet front assembly (31) that is matched with the spacing rank of movable locking bolt neck, be matched with the electromagnet rear assembly (32) of electromagnet front assembly, around the electromagnet coil (33) of electromagnet front and rear portions assembly, be provided with rectifier cell (34) in the electromagnet coil circuit and form.
4. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1 is characterized in that described travel switch (4) by the Switch main body spare that is series at electromagnet coil (41), and the switch push rod (42) that is matched with the assembly of unblanking is formed.
5. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1, it is characterized in that the fan-shaped pressing board (51) of the described assembly of unblanking (5) by the switch push rod that is matched with travel switch, fan-shaped pressing board is fixed in the column core bar (52) of unblanking at its middle part, be socketed on the hollow barrel core bar cover (53) of the core bar periphery of unblanking versatilely, be positioned at core bar cover middle part sidewall, fan-shaped pressing board is carried out spacing stopper slot (54), at the stage clip (55) of unblanking between core bar lower end and the core bar cover bottom, be fixed in core bar cover bottom, its end snaps in the driving lever (56) of stirring groove on the movable locking bolt, is socketed on the core bar upper periphery of unblanking versatilely, and the handle (57) that is fixed in the core bar set upper side is formed.
6. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1, it is characterized in that described unlock component (6) separates lock body (61) by what be fixed in back side of panel, separate lock body and be close to the release keyhole (62) that the panel place is provided with, separate lock body near the side of electromagnet front assembly, be provided with the release keyhole become vertical communicate separate key groove (63), the unlock key that is matched with the release keyhole and separates the key groove is formed.
7. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1, it is characterized in that being close on the described lock panel (7) release keyhole place, offer and the on all four unlock hole of release keyhole shape (71), lock panel is close to the electromagnet coil place and is provided with and is electrically connected at indicator lamp (72) in the electromagnet coil circuit, lock panel offers grip hole (73) near place, core bar set upper side, lock panel is provided with handle rotation direction arrow symbol (74) near the grip hole place, and four jiaos of back sides of lock panel are provided with the securing member (75) that installs and fixes electromagnetic lock and use.
8. according to claim 1 or the 3 described Noiseless electromagnetic locks that prevent that misoperation of high-pressure switchgear from using, it is characterized in that described electromagnet front assembly (31) is by electromagnet cylinder (311), pass and be fixed in the fore-set (312) at electromagnet cylinder center, socket and the limiting plate (313) that is fixed in the fore-set front end are formed.
9. according to claim 1 or the 3 described Noiseless electromagnetic locks that prevent that misoperation of high-pressure switchgear from using, it is characterized in that described electromagnet rear assembly (32) is identical with the electromagnet cylinder by external diameter, the tubular electromagnetic actuation body of inner chamber (321), one end presses closer in the fore-set rear end, is positioned at the top spring (322) of electromagnetic actuation intracoelomic cavity, and the clamp (323) that be positioned at the top spring other end, is fixed in electromagnetic actuation body rear end is formed.
10. the Noiseless electromagnetic lock that prevents that misoperation of high-pressure switchgear from using according to claim 1 is characterized in that described rectifier cell (34) selects bridge rectification device for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010197366 CN101864872B (en) | 2010-06-11 | 2010-06-11 | Noiseless electromagnetic lock for preventing misoperation of high-pressure switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010197366 CN101864872B (en) | 2010-06-11 | 2010-06-11 | Noiseless electromagnetic lock for preventing misoperation of high-pressure switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101864872A true CN101864872A (en) | 2010-10-20 |
| CN101864872B CN101864872B (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010197366 Expired - Fee Related CN101864872B (en) | 2010-06-11 | 2010-06-11 | Noiseless electromagnetic lock for preventing misoperation of high-pressure switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101864872B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605994A (en) * | 2012-03-26 | 2012-07-25 | 镇江泰源电器科技有限公司 | Electromagnetic lock shell for high-voltage switching device and manufacturing method of electromagnetic lock shell |
| CN102877712A (en) * | 2012-10-31 | 2013-01-16 | 镇江华驰电器有限公司 | Program electromagnetic lock network door lock |
| CN112213575A (en) * | 2020-09-08 | 2021-01-12 | 国网福建省电力有限公司检修分公司 | Electrical test prevents accidental injury device |
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| WO1982004459A1 (en) * | 1981-06-17 | 1982-12-23 | Kleinhaeny Arno | Lock cylinder with integrated electromagnetic locking |
| CN2286230Y (en) * | 1996-02-28 | 1998-07-15 | 姜治国 | Electromagnetic programme lock |
| CN101538959A (en) * | 2009-03-17 | 2009-09-23 | 陈有明 | Safety electromagnetic lock for high-voltage switchgear |
| CN201406892Y (en) * | 2009-04-13 | 2010-02-17 | 浙江纪元电气集团有限公司 | AC/DC electromagnetic lock |
| CN201763071U (en) * | 2010-06-11 | 2011-03-16 | 镇江泰源电器科技有限公司 | Noiseless electromagnetic lock for preventing misoperation of high-voltage switchgear |
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2010
- 2010-06-11 CN CN 201010197366 patent/CN101864872B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1982004459A1 (en) * | 1981-06-17 | 1982-12-23 | Kleinhaeny Arno | Lock cylinder with integrated electromagnetic locking |
| CN2286230Y (en) * | 1996-02-28 | 1998-07-15 | 姜治国 | Electromagnetic programme lock |
| CN101538959A (en) * | 2009-03-17 | 2009-09-23 | 陈有明 | Safety electromagnetic lock for high-voltage switchgear |
| CN201406892Y (en) * | 2009-04-13 | 2010-02-17 | 浙江纪元电气集团有限公司 | AC/DC electromagnetic lock |
| CN201763071U (en) * | 2010-06-11 | 2011-03-16 | 镇江泰源电器科技有限公司 | Noiseless electromagnetic lock for preventing misoperation of high-voltage switchgear |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605994A (en) * | 2012-03-26 | 2012-07-25 | 镇江泰源电器科技有限公司 | Electromagnetic lock shell for high-voltage switching device and manufacturing method of electromagnetic lock shell |
| CN102605994B (en) * | 2012-03-26 | 2015-09-16 | 镇江泰源电器科技有限公司 | High voltage switchgear equipment electromagnetic lock housing and manufacture method thereof |
| CN102877712A (en) * | 2012-10-31 | 2013-01-16 | 镇江华驰电器有限公司 | Program electromagnetic lock network door lock |
| CN112213575A (en) * | 2020-09-08 | 2021-01-12 | 国网福建省电力有限公司检修分公司 | Electrical test prevents accidental injury device |
| CN112213575B (en) * | 2020-09-08 | 2022-08-30 | 国网福建省电力有限公司检修分公司 | Electrical test prevents accidental injury device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101864872B (en) | 2012-12-19 |
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