CN113823531A - Intelligent double-circuit alternating current contactor - Google Patents
Intelligent double-circuit alternating current contactor Download PDFInfo
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- CN113823531A CN113823531A CN202111068791.8A CN202111068791A CN113823531A CN 113823531 A CN113823531 A CN 113823531A CN 202111068791 A CN202111068791 A CN 202111068791A CN 113823531 A CN113823531 A CN 113823531A
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- contactor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/321—Latching movable parts mechanically the mechanical latch being controlled directly by the magnetic flux or part of it
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
Abstract
The invention discloses an intelligent double-circuit alternating current contactor, which comprises a contactor body and is characterized in that the contactor body comprises: the power supply switching device comprises a shell, wherein a power supply switching unit and a plurality of self-locking devices are arranged in the shell; the power supply switching unit comprises a path A power supply input end, a path B power supply input end and a load output end; when the input end is switched from the A path to the B path, the self-locking device triggers self-locking and cuts off the power input of the B path; self-locking device: the self-locking device comprises a self-locking device body and a coil controller, wherein when the coil controller is closed, the self-locking device is triggered to unlock and a switching power supply A path is connected with a load output. When the contactor self-locking device is started, the coil of the alternating current contactor stops supplying power, and the alternating current contactor does not consume power to operate after being started; the intelligent double-circuit alternating current contactor can be freely combined and applied according to different use scenes, and the multipurpose effect is realized; when the self-locking pin connecting rod moves downwards along with the upper electromagnetic core, the self-locking pin buckle head is self-locked in place, and the occurrence of dislocation faults of the upper electromagnetic core and the lower electromagnetic core of the alternating current contactor is prevented.
Description
Technical Field
The invention relates to the field of electric switches, in particular to an intelligent double-circuit alternating current contactor.
Background
The temperature in summer is high, but the summer temperature is lower by 6-7 ℃ than that in a large city in remote mountain areas, the summer-heat-avoiding area is a summer-heat-avoiding area, the wind and light of surrounding mountain forests are clear, and the summer-heat-avoiding area is a good place for relieving mental stress, so the summer-heat-relieving area is popular among urban people. In recent years, a new tourism leisure civilian lodging and farmhouse happiness has produced good economic benefits for promoting rural tourism, adjusting industrial structure, building regional economy and accelerating the agricultural marketization process. Because the summer is the season with the highest power load of the power supply network every year, the equipment runs at full load in the environment with extremely high temperature, the failure rate and the low voltage are inevitable, and the requirements of residents and farmhouses on the power supply reliability and the power supply quality of the distribution network are high.
The power supply source switching is needed after the power supply fault occurs, and the alternating current contactor is widely applied to the field of power line breaking and control as an important device. The contactor is an electric appliance which utilizes a coil to flow current to generate a magnetic field in the industry so as to close a contact to control a load. The contactor consists of an electromagnetic system (iron core, static iron core and electromagnetic coil) contact system (normally open contact and normally closed contact) and an arc extinguishing device. The principle is that after the electromagnetic coil of the contactor is electrified, a strong magnetic field is generated, so that the static iron core generates electromagnetic attraction to attract the armature, and drives the contact to act, and the contactor attracts. When the coil is powered off, the electromagnetic attraction disappears, the armature is released under the action of the release spring, and the contactor is disconnected.
Alternating current is conducted in an alternating current contactor, the alternating current contactor is a low-voltage electrical appliance widely applied in industrial production, and is mainly used for controlling running and stopping of electric equipment such as a motor and the like, so the alternating current contactor is the most common electric equipment in industry, and the national installation amount and the national use amount are huge. Because the active power consumed by each AC contactor with large and medium capacity is about 60W on average when the AC contactor is in a holding state, if the AC contactor adopts a power-saving technology, the power can be saved by billions of degrees at least every year, and the power is converted into the RMB by billions of yuan. After the alternating current contactor is closed, alternating current is still conducted in a coil of the alternating current contactor, and power consumption caused by iron loss and copper loss is large, so that the coil generates heat, noise is large, electric energy is wasted, and the service life of the alternating current contactor is shortened due to the fact that insulation of the coil is easy to age. By adopting the energy-saving device, the service life of the alternating current contactor can be greatly prolonged, and the loss of copper in the alternating current contactor can be reduced. Under the environment of energy conservation and emission reduction, the energy consumption of the alternating current contactor is reduced, and the economic benefit and social benefit are remarkable.
The existing energy saver of the alternating current contactor also adopts a mode of large current suction and small current maintenance, but the existing technology has the following defects: at present, when saving energy, the small current is usually kept unchanged, or the width of the direct current pulse for controlling the small current is kept unchanged. The direct current working mode of the alternating current contactor enables impedance to be reduced, when external voltage becomes high, current in the coil is large, the coil generates a large amount of heat, and the alternating current contactor can be burnt. For example, in patent application No. 00228518.5, the energy-saving principle also adopts large current pull-in and small current hold; the small current flowing through the alternating current contactor is also controlled by the direct current narrow pulse, the pulse width is fixed, and the alternating current contactor is likely to be heated and burnt down after long-time work.
Disclosure of Invention
The invention provides an intelligent double-path alternating current contactor which is used for overcoming the problems that the alternating current contactor in the prior art still consumes power after being put into operation, an energy-saving alternating current contactor is low in service life and has potential safety hazards, and a power supply is automatically switched and does not consume power after being put into operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent two-way ac contactor, comprising a contactor body, the contactor body comprising: the power supply switching device comprises a shell, wherein a power supply switching unit and a plurality of self-locking devices are arranged in the shell;
the power supply switching unit comprises a path A power supply input end, a path B power supply input end and a load output end; when the input end is switched from the A path to the B path, the self-locking device triggers self-locking and cuts off the power input of the B path;
self-locking device: the self-locking device comprises a self-locking device body and a coil controller, wherein when the coil controller is closed, the self-locking device is triggered to unlock and a switching power supply A path is connected with a load output. When the intelligent double-circuit alternating current contactor is used in an access mode, the A-circuit power supply access and the load output are closed when the coil is not electrified, namely the contactor is in a normally closed state, and therefore the contactor does not need to consume power. When the access of the power supply in the A path is switched to the access of the power supply in the B path, the transmission connecting rod drives the moving contact to be downwards closed with the access static contact of the power supply in the B path, the access of the power supply in the B path is conducted with the output of a load, the automatic switching of a power supply line from the A path to the B path is completed, and meanwhile, the moving contact is downwards separated from the access static contact of the power supply in the B path and stops supplying power, so that the intelligent double-path alternating current contactor disclosed by the invention does not consume power during operation.
Preferably, the self-locking device comprises a self-locking iron core magnet, a self-locking pin and a self-locking base which are arranged from top to bottom, the upper end of the self-locking pin is provided with the self-locking pin iron core, the coil controller is installed at the bottom of the self-locking base and is in magnetoelectric connection with the self-locking iron core, and the self-locking iron core magnet comprises a self-locking iron core magnetic coil and a self-locking iron core magnet core. The self-locking pin can be pushed to be inserted into the self-locking seat by external force, when the external force disappears, the self-locking pin can keep the state of being inserted into the self-locking seat, and the self-locking iron core is electrified to generate magnetic force to suck the self-locking pin out of the self-locking seat.
Preferably, the shell comprises a base, the base comprises side plates and a bottom plate, a lead bar is arranged on the bottom plate, the self-locking iron core magnetic coil is electrically connected with the lead bar, and the self-locking iron core magnets are fixedly connected with the side plates. The self-locking iron core magnetic coil is electrified and generates a magnetic field, and the self-locking iron core magnetic coil is deenergized and the magnetic field disappears.
Preferably, the power switching unit comprises a moving contact, a path a power static contact arranged above the moving contact, a path B power static contact arranged below the moving contact, and a transmission connecting rod; the top of the transmission connecting rod is elastically connected with the upper wall of the inner side of the shell, the moving contact is fixed with the rod body of the transmission connecting rod, the lower end of the transmission connecting rod is provided with an upper electromagnet core, a lower electromagnet core is arranged below the upper electromagnet core, the lower electromagnet core is fixedly arranged on the upper surface of the bottom plate, a coil is arranged inside the lower electromagnet core, a lead of the coil is connected to a lead row, a plurality of self-locking pins are fixedly arranged on the side surface of the upper electromagnet, and a plurality of self-locking seats are fixedly arranged on the side surface of the lower electromagnet core. The circuit A power static contact and the circuit B power static contact penetrate through a double-circuit alternating current contactor base side plate position hole in a drawer mode and are fixed through screws, the screws can be removed during maintenance, the circuit A power static contact and the circuit B power static contact are pulled out of the position holes, the movable contact is in a rod-shaped middle and is fixed with the transmission connecting rod, the movable contact is provided with two contacts, the two contacts are arranged below the circuit A power static contact and above the circuit B power static contact respectively, the movable contact is connected with the load output end through flexible flat cables, the transmission connecting rod can move up and down conveniently, a movable contact pressure spring is arranged on the surface of the contact of the movable contact, the spring is of an arc surface structure and is integrally designed with the movable contact pressure spring, and the contact surface is increased when the fixed contact and the movable contact pressure spring are closed.
Preferably, a limited displacement plate is arranged between the self-locking iron cores, a through hole is formed in the limited displacement plate, the transmission connecting rod penetrates through the through hole to be connected with the upper electromagnet core, and a buffer spring is arranged between the limited displacement plate and the upper electromagnet core. The limiting displacement plate is arranged to prevent the transmission connecting rod from shifting up and down, and the buffer spring can play a role in buffering when downward suction force and upward pulling force are too large during resetting.
Preferably, the self-locking pin comprises a self-locking pin connecting rod, the self-locking pin iron core is arranged at the upper end of the self-locking pin connecting rod, a self-locking pin fastening head is arranged at the lower end of the self-locking pin connecting rod, a self-locking pin triangular head is arranged at the end part of the fastening head, and a self-locking pin limiting block is arranged on the rod body of the self-locking pin connecting rod in an encircling manner. When the self-locking pin moves downwards, the self-locking pin limiting block limits the downward moving position, the self-locking pin connecting rod is close to the lower part 1/3 and extends out of the bottom surface of the upper electromagnetic core, and when the self-locking pin moves downwards along with the upper electromagnetic core, the self-locking pin buckle head can be inserted into the self-locking seat. The self-locking pin buckle head is in an oval shape, the two sides of the upper electromagnet core are fixedly provided with the self-locking pins by screws, the upper parts of the self-locking pins are self-locking pin iron cores, and the self-locking pin iron cores can move upwards under the action of suction after the magnetic cores of the self-locking iron cores generate magnetic fields.
Preferably, the self-locking seat further comprises a plurality of elastic self-locking buckles uniformly arranged on the side wall of the self-locking seat. When the self-locking pin moves downwards along with the upper electromagnet core, the elastic self-locking buckle can be compressed to move inwards, the self-locking pin buckle head can be inserted into the self-locking seat, and the self-locking pin buckle head is positioned in the self-locking seat, so that the self-locking pin buckle head stays in the self-locking seat forever under the condition that the self-locking pin does not have other upward external forces, thereby achieving the closing state of the moving contact and the static contact of the double-path alternating current contactor under the condition that the coil of the double-path alternating current contactor loses power, and realizing the effect that the alternating current contactor does not consume power when being thrown.
Preferably, the coil controller comprises a coil controller limiting block, a coil controller connecting rod and a coil controller switch which are arranged from top to bottom, the coil controller comprises a switch moving contact and a switch static contact, the switch moving contact and the switch static contact are normally closed, and when the self-locking pin is inserted into the self-locking seat, the coil controller connecting rod moves downwards to push the moving contact to move, so that the switch moving contact and the switch static contact are separated from a closed state and are separated from a closed state. The coil controller limiting block is composed of a bowl-shaped upper part and a square lower part, an opening of the bowl-shaped upper part is upward, a coil controller connecting rod is led out from the middle position of the square lower part, the bowl-shaped model can better receive an object with downward thrust, the rectangular limiting can prevent the coil controller from being damaged by overlarge external force, a coil controller buffer spring is sleeved outside the coil controller connecting rod, the coil controller is connected with a coil controller switch, the coil controller switch is in a normally closed state when the coil controller is not pressed downwards from the outside, and when the coil controller limiting block has downward thrust, the coil controller switch is pushed downwards by the coil controller connecting rod, the switch state is changed from the normally closed state to the normally open state; when the downward force is eliminated, the coil controller buffer spring drives the coil controller connecting rod to move upwards, the coil controller switch returns to the normally closed state, and the lead of the coil controller is connected with the lead row of the base.
Preferably, the elastic self-locking buckle comprises a bowl-shaped limiter and a sliding ball buckle arranged on the inner side of the bowl-shaped limiter, and a coil controller buffer spring is arranged at the bottom of the bowl-shaped limiter. The self-locking seat buffer spring is fixedly connected with the bowl-shaped limiting device, when external force acts, the bowl-shaped limiting device can compress the self-locking seat buffer spring to move inwards, and after the external force is eliminated, the self-locking seat buffer spring is in a recovery state, and the bowl-shaped limiting device resets.
Preferably, the load output end is flexibly and electrically connected with the movable contact. The moving contact is rod-shaped, the middle of the moving contact is fixed with the transmission connecting rod, the moving contact is provided with two contacts, the two contacts are respectively arranged below the fixed contact of the power supply in the A line and above the fixed contact of the power supply in the B line, the moving contact is connected with the load output end by adopting a flexible flat cable, the up-and-down motion of the transmission connecting rod is facilitated, and the fixed contact of the power supply in the A line and the moving contact are in a normally closed state when the coil is not electrified when the contactor is connected and used, so the contactor does not need to consume power. When the access of the power supply in the A path is switched to the access of the power supply in the B path, the transmission connecting rod drives the moving contact to be closed downwards with the static contact of the power supply in the B path, the power supply in the B path is conducted with the load output, the automatic switching of the power supply line from the A path to the B path is completed, and meanwhile, the moving contact is separated downwards from the access static contact of the power supply in the B path and stops supplying power.
Double-circuit ac contactor still includes hand switch SB1 and hand switch SB2, hand switch SB2 one end is connected with left side self-locking iron core magnetic coil one end and right side self-locking iron core magnetic coil, the left side self-locking iron core magnetic coil other end and the right side self-locking iron core magnetic coil other end and zero line are connected, the hand switch SB2 other end is connected with the live wire, hand switch SB1 one end is connected with the live wire, the hand switch SB1 other end is connected with coil one end, the coil other end is connected with right side coil controller switch one end, the right side coil controller switch other end is connected with left side coil controller switch one end, the left side coil controller other end is connected with the zero line. The live wire is externally connected with a B-circuit power supply relay.
Therefore, the invention has the following beneficial effects: (1) when the contactor self-locking device is started, the coil of the alternating current contactor stops supplying power, and the operation without power consumption is realized after the contactor self-locking device is started; (2) the intelligent double-circuit alternating current contactor can be freely combined and applied according to different use scenes, and the multipurpose effect is realized; (2) when the self-locking pin connecting rod moves downwards along with the upper electromagnetic core, the self-locking pin buckle head is self-locked in place, and the occurrence of dislocation faults of the upper electromagnetic core and the lower electromagnetic core of the alternating current contactor is prevented.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent two-way ac contactor according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a self-locking device according to an embodiment of the invention.
Fig. 3 is a schematic diagram of an intelligent two-way ac contactor electrical connection according to an embodiment of the invention.
In the figure: 200 double-path AC contactor shell, 201 reset spring, 202 arc extinguishing device, 203 path power supply access, 204A path power supply access, 205 load output, 206 moving contact pressure spring, 207 contact, 208 flexible connection flat cable, 209 transmission connecting rod, 210 limit moving plate, 211 buffer spring, 212 upper electromagnet core, 213 lower electromagnet core, 214 coil, 215 base, 216 lead line row, 231 self-locking iron core magnetism, 232 self-locking pin, 233 self-locking seat, 234 coil controller, 2311 self-locking iron core magnetic coil lead, 2312 self-locking iron core magnetic coil, 2313 self-locking iron core magnetic fixing screw, 2314 self-locking iron core, 2321 self-locking pin iron core, 2322 self-locking pin connecting rod, 2323 self-locking pin limiting block, 2324 self-locking pin elliptic fastening position, 2325 self-locking pin triangular head, 2326 self-locking pin fixing screw, 2331 sliding ball buckle, 2332 bowl-shaped limiting block, 2333 self-locking seat buffer spring, 2341 coil controller buffer spring, 2342 coil controller leads, 2343 coil controller limit positions, 2344 coil controller switches, 2345 coil controller links.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b):
as shown in fig. 1, the intelligent two-way ac contactor comprises a two-way ac contactor 200 and two sets of contactor self-locking devices 230, wherein the self-locking devices 230 comprise self-locking iron core magnets 231, self-locking pins 232, self-locking seats 233 and coil controllers 234 arranged from top to bottom.
The coil controller 234 is installed at the bottom of the self-locking seat 233, the coil controller 234 is electrically connected with the self-locking iron core 231, and the self-locking iron core 231 is composed of a self-locking iron core magnetic coil lead 2311, a self-locking iron core magnetic coil 2312, a self-locking iron core magnetic fixing screw 2313 and a self-locking iron core 2314; the coil controller 234 comprises a coil controller limiting block 2343, a coil controller connecting rod 2345 and a coil controller switch 2344 which are arranged from top to bottom, the coil controller 234 is formed by integrally leading out the coil controller connecting rod 2345 from the middle position of the lower portion of the coil controller limiting block 2343 which is formed by integrally forming the upper portion of a bowl shape and the lower portion of a square shape, the bowl shape can better receive an object pushed downwards, the coil controller 234 can be prevented from being damaged due to overlarge external force due to the rectangular limiting effect, the coil controller connecting rod 2345 penetrates through a coil controller buffer spring 2341 to be connected with the coil controller switch 2344, the coil controller switch 2344 is in a normally closed state when the coil controller 234 is not pressed downwards from the outside, and when the coil controller limiting block 2343 has downward pushing force, the coil controller connecting rod 2345 pushes the coil controller switch 2344 downwards, the switch state is changed from normally closed state to normally open state; when the downward force is removed, coil controller damper spring 2341 moves coil controller link 2345 upward, coil controller switch 2344 returns to the normally closed state, and coil controller leads 2342 connect with lead row 216 of base 215.
The self-locking pin 232 is composed of a self-locking pin iron core 2321, a self-locking pin connecting rod 2322, a self-locking pin limiting block 2323, a self-locking pin oval fastening position 2324, a self-locking pin triangular head 2325 and a self-locking pin fixing screw 2326; the upper portion is a self-locking pin iron core 2321, when the self-locking iron core 231 generates a magnetic field from the iron core magnet core 2314, the self-locking pin iron core 2321 can move upwards due to the action of suction, a self-locking pin connecting rod 2322 and a self-locking pin limiting block 2323 are fixedly arranged in the middle of the self-locking pin 232, when the self-locking pin 232 moves downwards, the self-locking pin limiting block 2323 can realize limit position control, the self-locking pin connecting rod 2322 is close to the lower portion 1/3 and extends out of the bottom of the upper iron core 212, the lower portion is provided with a self-locking pin oval fastening 2324 and a self-locking pin triangular head 2325, and when the self-locking pin 232 moves downwards along with the upper iron core 212, the self-locking pin iron core 2321 can be inserted into the self-locking seat 233.
The self-locking seat 233 is provided with a self-locking seat buffer spring 2333, a bowl-shaped stopper 2332 and a sliding ball buckle 2331 at the upper part of the self-locking seat 233, the self-locking seat buffer spring 2333 is fixedly connected with the bowl-shaped stopper 2332, when an external force is applied, the bowl-shaped stopper 2332 can compress the self-locking seat buffer spring 2333 to move inwards, and after the external force is eliminated, the self-locking seat buffer spring 2333 is recovered, and the bowl-shaped stopper 2332 is reset.
The double-circuit alternating current contactor shell 200 is internally provided with a power supply switching unit, the power supply switching unit comprises a reset spring 201, an arc extinguishing device 202, a circuit A power supply access 204, a circuit B power supply access 203, a load output 205, a moving contact pressure spring 206, a contact 207, a flexible connection flat cable 208, a transmission connecting rod 209, a limiting moving plate 210, a buffer spring 211, an upper electromagnet core 212, a lower electromagnet core 213, a coil 214, a base 215 and a lead row 216, the circuit A power supply access 204 is fixed through a circuit A power supply static contact in a manner of penetrating through a position hole of a double-circuit alternating current contactor base in a drawer mode and fixed by screws, and the circuit B power supply access 203 is fixed through a circuit B power supply static contact in a manner of penetrating through a position hole of a double-circuit alternating current contactor base side plate in the drawer mode and fixed by screws.
The top of the transmission connecting rod 209 is elastically connected with the upper wall of the inner side of the double-circuit alternating current contactor shell 200 through a reset spring 201, the moving contact is rod-shaped, the moving contact in the middle of the moving contact is fixed with the rod body of the transmission connecting rod 209, the moving contact is provided with two contacts, the two contacts are respectively arranged below a fixed contact of a circuit A power supply and above a fixed contact of a circuit B power supply, the moving contact is connected with a load output end through a flexible flat cable, the up-and-down motion of the transmission connecting rod is facilitated, a moving contact pressure spring 206 is arranged on the surface of the contact of the moving contact, the spring is of a cambered surface structure and is integrally designed with the moving contact pressure spring 206, and the contact surface is increased when the fixed contact and the moving contact pressure spring 206 are closed. The two sides of the limit displacement plate 210 are fixed with self-locking iron cores 231 by screws, the transmission connecting rod 209 penetrates through a hole in the middle of the limit displacement plate 210 and the buffer spring 211 to be connected with the middle of the upper electromagnet core 212, the limit displacement plate 210 is arranged to prevent the position deviation of the transmission connecting rod 209 during up-and-down movement, and the buffer spring 211 can solve the problems of overlarge downward suction force and upward pulling force during reset; the top of the self-locking iron core magnet 231 is provided with a self-locking iron core magnet fixing screw 2313 for fixing the device, the middle of the self-locking iron core magnet 231 is provided with self-locking iron core magnet coil 2312, two ends of the self-locking iron core magnet coil 2311 are connected with the self-locking iron core magnet coil lead 2311, the self-locking iron core magnet coil lead 2311 is connected with the lead row 216 of the base 215, the lower part of the self-locking iron core magnet coil 2314 is provided with a self-locking iron core magnet core 2314, and after the self-locking iron core magnet coil 2312 is connected with electricity, the self-locking iron core magnet core 2314 generates a magnetic field.
The lower end of the transmission connecting rod 209 is provided with a mountain-shaped upper electromagnet core 212, a mountain-shaped lower electromagnet core 213 is arranged below the upper electromagnet core 212, and self-locking pins 232 are fixedly arranged on two sides of the upper electromagnet core 212 by screws.
Double-circuit ac contactor still includes hand switch SB1 and hand switch SB2, hand switch SB2 one end is connected with left side self-locking iron core magnetic coil one end and right side self-locking iron core magnetic coil, the left side self-locking iron core magnetic coil other end and the right side self-locking iron core magnetic coil other end and zero line are connected, the hand switch SB2 other end is connected with the live wire, hand switch SB1 one end is connected with the live wire, the hand switch SB1 other end is connected with coil 214 one end, the coil 214 other end is connected with right side coil controller switch one end, the right side coil controller switch other end is connected with left side coil controller switch one end, the left side coil controller other end is connected with the zero line. The live wire is externally connected with a B-circuit power supply relay.
When the intelligent two-way alternating current contactor is used in an access mode, the A-way power supply access and the load output are closed when the coil 214 is not electrified, namely the contacts are in a normally closed state, so that the intelligent two-way alternating current contactor does not need to consume power. When switching from a way power access to B way power access, the relay is switched on, the relay contacts change from normally open to normally closed state, and the coil 214 is switched on. The coil in the lower mountain-shaped electromagnetic core 213 at the lower part of the double-circuit alternating current contactor is electrified to generate a magnetic field, the inverted mountain-shaped upper electromagnetic core 212 at the upper part of the double-circuit alternating current contactor is downward due to the attraction, the transmission connecting rod drives the moving contact to be downward and closed with the B-path power supply access static contact, the B-path power supply access is conducted with the load output, the automatic switching of a power supply line from the A path to the B path is completed, and meanwhile, the moving contact is downward and separated from the B-path power supply access static contact, and the power supply is stopped.
The contactor self-locking device installed on two sides of the electromagnetic core of the double-path alternating current contactor moves along with the electromagnetic core 212 on the contactor, the self-locking pin triangular head 2325 moves, the self-locking pin triangular head 2325 abuts against the coil controller 234 through the rotation of the sliding ball fastener 2331 installed in the bowl-shaped stopper, the switch of the coil controller 234 is opened due to the downward force of the connecting rod of the coil controller 234, the switch of the coil controller 234 is changed from the original normally closed state to the normally open state, and meanwhile, the switch and the double-path alternating current contactor coil 214 are powered by a zero line series circuit, so that the double-path alternating current contactor coil 214 loses power, and the self-locking pin 232 part of the contactor self-locking device is clamped in the sliding ball fastener 2331 of the self-locking seat part, so that the self-locking nut 232 stays in the self-locking seat 233 forever under the condition that the double-path alternating current contactor coil loses power, And the contact is in a closed state, so that the effect of no power consumption when the alternating current contactor is put into operation is realized.
When the intelligent double-circuit alternating current contactor is unlocked, the relay coil is continuously electrified within 2 seconds, the disconnection mode is immediately recovered, in the continuous electrifying time period, the self-locking iron core 231 coils connected to the two sides of the double-circuit alternating current contactor in parallel are electrified, the self-locking iron core 2314 generates magnetic field suction, the self-locking pin iron core 2321 moves due to the upward magnetic field suction, the self-locking pin elliptic buckle 2324 rolls upwards through the sliding ball buckle 2331 of the self-locking seat to be separated from the self-locking seat 233, the self-locking pin 232 is successfully separated from the self-locking seat 233, the moving contact of the double-circuit alternating current contactor upwards contacts with the power supply of the A path to be closed, and the power supply is switched to the A path from the B path.
Intelligent double-circuit ac contactor is when manual start mode: the B-circuit power supply access of the intelligent double-circuit alternating current contactor is connected with an external power supply, and the load output 205 is connected with a motor or electric equipment. When the SB1 normally open button is pressed, the current flows out from the contactor coil 214 to the right coil controller switch through the other end, then flows to the left coil controller switch through the other end, then flows to the zero line of the power supply from the other end, the power supply loop is conducted, the coil in the lower mountain-shaped lower electromagnetic core 213 of the contactor is electrified to generate magnetic field suction force, the upper electromagnetic core from the upper part of the contactor to the mountain shape moves downwards, the self-locking pins fixed at the two sides of the upper electromagnetic core also move along with the upper magnetic core, the self-locking pins 232 are inserted into the self-locking bases 233, when the self-locking pins 2325 contact the self-locking pins coil controller and push downwards, the coil controller switch changes from the original normally closed state to the normally open state along with the downward force, the power supply loop is switched off, the contactor coil is switched off when power is lost, but because the triangular heads 2325 fixedly keeping the self-locking pins at the two sides of the upper electromagnetic core are buckled into the self-locking bases bowl-shaped limiter 2332 to slide ball button resistance, the transmission connecting rod of the contactor can not be recovered, and the B-path power supply access static contact and the load output moving contact are still in a closed state, so that the contactor is operated without power consumption.
Manual unlocking: when the normally open button is pressed for about 2 seconds, the self-locking iron core magnetic coils connected to the two sides of the contactor are electrified, the self-locking iron core 2314 generates magnetic field suction, the self-locking pin iron core 2321 moves due to upward suction of a magnetic field, the self-locking pin elliptic buckle 2324 rolls through the sliding ball buckle 2331 of the self-locking seat 233 and upwards separates from the self-locking seat 233, the self-locking pin 232 and the self-locking seat 233 are successfully separated, the moving contact of the double-circuit alternating current contactor upwards separates from a B-path power supply, and the contactor stops operation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms contactor, latching pin, latching seat, core magnet core, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides an intelligence double-circuit ac contactor, includes the contactor body, characterized by, the contactor body includes: the power supply switching device comprises a shell, wherein a power supply switching unit and a plurality of self-locking devices are arranged in the shell;
the power supply switching unit comprises a path A power supply input end, a path B power supply input end and a load output end; when the input end is switched from the A path to the B path, the self-locking device triggers self-locking and cuts off the power input of the B path;
self-locking device: the self-locking device comprises a self-locking device body and a coil controller, wherein when the coil controller is closed, the self-locking device is triggered to unlock and a switching power supply A path is connected with a load output.
2. An intelligent two-way AC contactor according to claim 1, wherein said self-locking device comprises a self-locking iron core magnet, a self-locking iron core magnet core, a self-locking pin and a self-locking base arranged from top to bottom, the upper end of the self-locking pin is provided with the self-locking pin iron core, said coil controller is installed at the bottom of the self-locking base, and said coil controller is connected with the self-locking iron core by magnetoelectric.
3. An intelligent two-way ac contactor as claimed in claim 2, wherein said housing comprises a base, said base comprising side plates and a bottom plate, said bottom plate having a lead row, said self-locking core magnetic coil electrically connected to said lead row, said plurality of self-locking core magnets fixedly connected to said side plates.
4. An intelligent two-way AC contactor as claimed in claim 3, wherein said power switching unit comprises a movable contact, a line A power static contact disposed above the movable contact, a line B power static contact disposed below the movable contact, and a transmission link; the top of the transmission connecting rod is elastically connected with the upper wall of the inner side of the shell, the moving contact is fixed with the rod body of the transmission connecting rod, the lower end of the transmission connecting rod is provided with an upper electromagnet core, a lower electromagnet core is arranged below the upper electromagnet core, the lower electromagnet core is fixedly arranged on the upper surface of the bottom plate, a coil is arranged inside the lower electromagnet core, a lead of the coil is connected to a lead row, a plurality of self-locking pins are fixedly arranged on the side surface of the upper electromagnet, and a plurality of self-locking seats are fixedly arranged on the side surface of the lower electromagnet core.
5. An intelligent two-way AC contactor as claimed in claim 4, wherein a displacement limiting plate is disposed between said latching cores, said displacement limiting plate having a through hole, said transmission link rod passing through said through hole and being connected to said upper core, and a buffer spring is disposed between said displacement limiting plate and said upper core.
6. An intelligent two-way ac contactor according to any one of claims 2-5, wherein said self-locking pin comprises a self-locking pin connecting rod, said self-locking pin iron core is arranged on the upper end of the self-locking pin connecting rod, the lower end of the self-locking pin connecting rod is provided with a self-locking pin fastening head, the end of the fastening head is provided with a self-locking pin triangular head, and a self-locking pin limiting block is arranged around the self-locking pin connecting rod body.
7. An intelligent two-way ac contactor according to claim 6, wherein said self-locking socket further comprises a plurality of resilient self-locking latches uniformly disposed on the side walls of the self-locking socket.
8. An intelligent two-way AC contactor as claimed in claim 7, wherein said coil controller comprises a coil controller limiting block, a coil controller connecting rod, and a coil controller switch from top to bottom, said coil controller comprises a switch moving contact and a switch static contact, the switch moving contact and the switch static contact are normally closed, when the self-locking pin is inserted into the self-locking seat, the coil controller connecting rod moves down to push the moving contact to displace, so that the switch moving contact and the switch static contact are separated from the closed state and separated from the closed state.
9. An intelligent two-way ac contactor as claimed in claim 8, wherein said elastic self-locking catch comprises a bowl-shaped stopper and a ball-sliding catch disposed inside said bowl-shaped stopper, and a coil controller buffer spring is disposed at the bottom of said bowl-shaped stopper.
10. An intelligent two-way ac contactor as claimed in claim 9, wherein said load output terminal is flexibly connected to said moving contact.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111068791.8A CN113823531B (en) | 2021-09-13 | 2021-09-13 | Intelligent double-circuit alternating-current contactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111068791.8A CN113823531B (en) | 2021-09-13 | 2021-09-13 | Intelligent double-circuit alternating-current contactor |
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| CN113823531A true CN113823531A (en) | 2021-12-21 |
| CN113823531B CN113823531B (en) | 2023-09-01 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002008505A (en) * | 2000-06-21 | 2002-01-11 | Kyoritsu Keiki Co Ltd | Electromagnetic contactor |
| FR2869156A1 (en) * | 2004-04-20 | 2005-10-21 | Tzo Ing Lin | Wide voltage range DC and AC contactor for remote telephone control system, has linkage with one end connected to movable iron core whose bottom is kept within range of retaining coil as magnetic coil is attracted by core |
| CN202094054U (en) * | 2011-05-30 | 2011-12-28 | 丁玉 | Energy-saving AC (alternating current) contactor |
| CN106847568A (en) * | 2017-04-07 | 2017-06-13 | 张中尧 | Multi-functional automatic switchover device and the operation/cutting method realized using the switch |
| CN108573831A (en) * | 2017-03-14 | 2018-09-25 | 施耐德电器工业公司 | Low-power consumption alternating current-direct current expansion module for A.C. contactor |
| US20190139720A1 (en) * | 2016-05-03 | 2019-05-09 | Binay Kumar | Energy efficient electromagnetic contactor using heart shaped driving pin operating mechanism |
-
2021
- 2021-09-13 CN CN202111068791.8A patent/CN113823531B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002008505A (en) * | 2000-06-21 | 2002-01-11 | Kyoritsu Keiki Co Ltd | Electromagnetic contactor |
| FR2869156A1 (en) * | 2004-04-20 | 2005-10-21 | Tzo Ing Lin | Wide voltage range DC and AC contactor for remote telephone control system, has linkage with one end connected to movable iron core whose bottom is kept within range of retaining coil as magnetic coil is attracted by core |
| CN202094054U (en) * | 2011-05-30 | 2011-12-28 | 丁玉 | Energy-saving AC (alternating current) contactor |
| US20190139720A1 (en) * | 2016-05-03 | 2019-05-09 | Binay Kumar | Energy efficient electromagnetic contactor using heart shaped driving pin operating mechanism |
| CN108573831A (en) * | 2017-03-14 | 2018-09-25 | 施耐德电器工业公司 | Low-power consumption alternating current-direct current expansion module for A.C. contactor |
| CN106847568A (en) * | 2017-04-07 | 2017-06-13 | 张中尧 | Multi-functional automatic switchover device and the operation/cutting method realized using the switch |
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| CN113823531B (en) | 2023-09-01 |
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