CN209804562U - Gas-electric hybrid double-drive contactor - Google Patents
Gas-electric hybrid double-drive contactor Download PDFInfo
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- CN209804562U CN209804562U CN201921046932.4U CN201921046932U CN209804562U CN 209804562 U CN209804562 U CN 209804562U CN 201921046932 U CN201921046932 U CN 201921046932U CN 209804562 U CN209804562 U CN 209804562U
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Abstract
The utility model discloses a gas-electricity hybrid double-drive contactor, the contactor includes electromagnetism part, auxiliary drive part, insulating part, contact part, hand branch pole, pull rod and inserts the main circuit move electrically conductive row and quiet electrically conductive row, wherein: the electromagnetic part consists of an upper magnetic cylinder cover, a magnetic cylinder, a lower magnetic cylinder cover, a static iron core, a movable iron core, a coil, a magnetic conduction ring, a permanent magnet and a closing spring; the auxiliary driving part consists of a cylinder cover, a cylinder, a gas generator, a pressing block, a rubber pad, a baffle, a piston, a bearing and a return spring; the insulating part consists of an insulator, an inner sleeve and an over travel spring; the contact part comprises a moving contact, a fixed contact, an airtight insulating shell and a corrugated pipe; the hand separating rod is horizontally arranged on the pull rod; the pull rod penetrates through and is connected with the electromagnetic part and the insulating part; the movable conducting bar is connected with the movable contact, and the static conducting bar is connected with the static contact. The contactor adopts two different driving principles, reduces the probability of simultaneous refusal of the main drive and the auxiliary drive, and has higher reliability.
Description
Technical Field
the utility model belongs to contactor design field relates to a gas-electricity hybrid double-drive insurance type contactor for considering closing reliability.
background
the contactor, as an automatic control electrical appliance for frequently switching on and off an alternating current/direct current main circuit and a large-capacity control circuit in a long distance, plays an indispensable role in various fields such as photovoltaic power generation, new energy, power systems, petroleum, chemical industry, coal mines, metallurgy and electric railways, and the switching-on reliability of the contactor is related to the safe operation of the whole circuit system. The traditional contactor is of a single-magnetic-circuit structure, if the signal triggering of the only driving structure and the coil electrifying link are in problems, the contactor is rejected, and the safe and stable operation of the system is influenced.
SUMMERY OF THE UTILITY MODEL
in order to solve the above-mentioned problem that traditional contactor exists, the utility model provides a gas-electricity mixes two contactors that drive. The contactor adopts two different driving principles, reduces the probability of simultaneous refusal of the main drive and the auxiliary drive, and has higher reliability.
The utility model aims at realizing through the following technical scheme:
the utility model provides a gas-electricity mixes and moves two contactors that drive, includes electromagnetism part, auxiliary drive part, insulating part, contact part, hand branch pole, pull rod and insert the main circuit move electrically conductive row and the static electrically conductive row, wherein:
the electromagnetic part consists of an upper magnetic cylinder cover, a magnetic cylinder, a lower magnetic cylinder cover, a static iron core, a movable iron core, a coil and a framework (hereinafter referred to as coil), a magnetic conductive ring, a permanent magnet and a closing spring; the upper magnetic cylinder cover, the magnetic cylinder and the lower magnetic cylinder cover are coaxially and sequentially connected from top to bottom to form a hollow cylinder; the static iron core is tightly attached to the lower end of the upper magnetic cylinder cover, a coil is wound on the outer side of the static iron core, and a movable iron core which is coaxial and can move up and down relatively is arranged below the static iron core; the outer side of the movable iron core is surrounded with a magnetic conduction ring; the outer side of the magnetic conduction ring is tightly attached to the permanent magnet;
The auxiliary driving part consists of a cylinder cover, a cylinder, a gas generator, a pressing block, a rubber pad, a baffle, a piston, a bearing and a return spring; the cylinder cover and the cylinder enclose a hollow column, and enclose the lower end of the gas generator, the baffle, the piston, the bearing and the return spring; a boss-shaped round hole is formed in the side wall of one side of the upper portion of the air cylinder, a bearing is embedded in the inner wall of the lower portion of the air cylinder, a round hole is formed in the center of the bottom end of the air cylinder, and the round hole extends upwards to form a cylindrical ring shape for a piston to penetrate through; a boss-shaped round hole is formed in the middle of the pressing block; the lower end of the gas generator penetrates through a boss-shaped round hole in the side wall of the cylinder, a rubber pad is clamped at the contact position to enhance the air tightness, the upper end of the gas generator penetrates through a boss-shaped round hole of the pressing block, and the pressing block and the cylinder are fixed through screws to clamp the gas generator; the piston is in a boss shape, the outer side of the piston is tightly attached to a bearing embedded in the inner wall of the cylinder, the upper end of the piston is tightly attached to the baffle in a release state, and the hollow part of the lower end of the piston is provided with a return spring;
the insulating part consists of an insulator, an inner sleeve and an over travel spring; the insulator and the inner sleeve are nested together in a U shape and are semi-surrounded on the outer side of the over travel spring, and the opening is sealed by a slotted nut;
The contact part comprises a moving contact, a fixed contact, an airtight insulating shell and a corrugated pipe; the bellows is connected with the airtight insulating shell, and the movable contact and the fixed contact which are coaxially opposite enclose a vacuum arc extinguish chamber, so that the voltage withstand level and the pollution prevention level can be improved; the contact and separation actions of the moving contact and the static contact realize the opening and closing functions of the contactor;
the hand separating rod is used for assisting in the switching-on and switching-off of the manual brake, and is horizontally arranged on the pull rod;
The lower end of the pull rod penetrates through and is connected with the electromagnetic part and the insulating part, and a certain air gap is reserved between the upper end of the pull rod and the lower end of the piston;
The movable conducting bar is connected with the movable contact, and the static conducting bar is connected with the static contact.
the utility model discloses a reliable two redundant designs that trigger of combined floodgate of contactor: under the condition that a coil is started by a normal trigger signal and a contactor contact does not act, an auxiliary driving structure is immediately started, an ignition circuit gives a trigger signal to detonate a gas generator, a large amount of gas is generated in a cylinder in a short time and acts on the inner walls of the cylinder and a cylinder cover to push a piston of a unique movable component to overcome the pressure of a reset spring to move downwards, and a movable iron core, an insulating part structure and a movable contact are driven to complete the closing action of the contactor; after the disposable gas generator is detonated and is disabled, the replacement can be completed through simple disassembly.
Compared with the prior art, the utility model has the advantages of as follows:
1. The contactor is different from the single drive of the traditional contactor, adopts a dual-drive mode, and can still ensure the contact action to be switched on under the condition that the main magnetic circuit of the contactor has problems and refuses to move;
2. the novel form of combining the pneumatic principle and the electromagnetic principle is adopted, and the switching-on reliability of different driving principles is higher;
3. The design of structure has convenient replaceability, has considered under the circumstances that has started the auxiliary drive structure, carries out the problem of changing to disposable gas generator, has both guaranteed gas generator's fixed clamp tightly in the design of device, convenient dismantlement, replacement again.
Drawings
FIG. 1 is a side sectional view of the overall structure of the gas-electric hybrid double-drive contactor;
FIG. 2 is a rear sectional view of the overall structure of the gas-electric hybrid double-drive contactor;
FIG. 3 is a sectional view of the plunger;
FIG. 4 is a schematic view of the flux path of the electromagnetic portion with the armature held in a released position with the coil not energized;
FIG. 5 is a schematic view of the flux path of the solenoid portion with the armature moved to an engaged position with the coil energized;
FIG. 6 is a partial cross-sectional view of the secondary drive structure with the piston held in a released position with the gas generant not detonated;
FIG. 7 is a partial cross-sectional view of the auxiliary drive structure with the piston moving to the engaged position at the instant of detonation of the gas generator;
FIG. 8 is a schematic view of a pull rod structure;
Figure 9 is a cross-sectional view of an isometric view of a cylinder.
Detailed Description
the technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and all modifications or equivalent replacements of the technical solution of the present invention are included in the protection scope of the present invention without departing from the spirit and scope of the technical solution of the present invention.
The utility model provides a novel gas-electricity hybrid double-drive contactor, as shown in fig. 1-3, fig. 8-9, gas-electricity hybrid double-drive contactor includes electromagnetism part, auxiliary drive part, insulating part, contact part, hand branch pole 19, pull rod 30 and inserts the main loop move electrically conductive row 24 and static electrically conductive row 29, wherein:
The electromagnetic part comprises an upper magnetic cylinder cover 1, a magnetic cylinder 2, a lower magnetic cylinder cover 3, a static iron core 4, a movable iron core 5, a coil and a framework 6 thereof (hereinafter referred to as coil 6), a magnetic conductive ring 7, a permanent magnet 8 and a closing spring 9, wherein: the magnetic cylinder 2 is annular, the upper surface and the lower surface are respectively fastened with the upper magnetic cylinder cover 1 and the lower magnetic cylinder cover 3 through screws, holes are formed in the side wall, and the side wall is matched with a coil 6 for lead output; the upper surface and the lower surface of the upper magnetic cylinder cover 1 are both planes, the center of the upper magnetic cylinder cover is provided with a hole, and the lower surface of the upper magnetic cylinder cover is fastened with a fixed iron core 4 through screws. The static iron core 4 is cylindrical, the outer side of the static iron core is tightly attached to the coil 6, the center of the static iron core is provided with a hole for the pull rod 30 and the closing spring 9 to pass through, the upper surface of the static iron core is fastened with the upper magnetic cylinder cover 1 through a screw, and the lower surface of the static iron core is attached to the movable iron core 5 under the condition that the contactor is opened; the upper surface of the movable iron core 5 is a trapezoidal surface, and is attached to the static iron core 4 under the condition of opening the contactor, the movable iron core is in a main and auxiliary pole surface state, and a concave hole for placing a closing spring 9 is reserved in the center; the lower surface of the movable iron core 5 is in a trapezoidal structure, is attached to the lower magnetic cylinder cover 3 in a closing state, presents the condition of a main pole surface and an auxiliary pole surface, is provided with a hole in the center, and is fastened with a pull rod 30 through threads as shown in a sectional view of the movable iron core in fig. 3. The inner side of the coil 6 is tightly attached to the static iron core 4, the outer side of the coil surrounds the magnetic cylinder 2, the upper end face of the coil is tightly attached to the lower end face of the upper magnetic cylinder cover 1, a convex hull is arranged in a groove below the upper magnetic cylinder cover 1 in a matching mode, the coil 6 is prevented from rotating, a leading-out wire of the coil is led out from a hole in the wall of the magnetic cylinder 2, and the lower end face of the coil is attached to the permanent magnet 8 and. The permanent magnet 8 is attached to the outer side of the magnetic conductive ring 7 in blocks to form a ring shape, the upper surface of the radially magnetized block permanent magnet 8 is tightly attached to the coil 6, and the outer side of the radially magnetized block permanent magnet 8 is tightly attached to the magnetic cylinder 2. The magnetic conduction ring 7 is an annular cylinder, surrounds the outer side of the movable iron core 5, and is provided with a certain air gap with the movable iron core 5 to avoid friction during movement; the upper surface is jointed with the coil 6; the outer side is tightly attached to the permanent magnet 8.
the auxiliary driving part consists of a cylinder cover 10, a cylinder 11, a gas generator 12, a pressing block 13, a rubber pad 14, a baffle plate 15, a piston 16, a bearing 17 and a return spring 18, wherein: the upper and lower surfaces of the cylinder head 10 are flat surfaces, and are fastened with the cylinder 11 by screw threads. The outer side of the cylinder 11 is cuboid, the upper part of the cylinder is open, the hollow part of the inner side of the cylinder is of a step-shaped structure, the horizontal section of the cylinder is of a circular outline, and the upper surface of the cylinder 11 is provided with a circular groove which is matched with a rubber pad 14 to be tightly attached to the cylinder cover 10 when the cylinder is fastened by a screw, so that the air tightness is enhanced. A boss-shaped circular hole is arranged on the side wall of one side of the upper part of the cylinder 11 and is used for the gas generator 12 to pass through. The middle step plane on the inner side of the cylinder 11 is fastened with three baffle plates 15 through screws. The inner wall of the lower part of the cylinder 11 is embedded with a cylindrical ring bearing 17. The center of the bottom end of the cylinder 11 is provided with a circular hole and extends upwards to form a cylindrical ring shape for the piston 16 to pass through. The pressing block 13 is in a cuboid shape, a boss-shaped round hole is formed in the middle of the pressing block, and the pressing block is matched with the gas generator 12 to penetrate through the boss-shaped round hole and is fastened with a screw on the side wall of the cylinder 11. The middle part of the gas generator 12 is columnar and protruded and is fixed between the pressing block 13 and the side wall of the cylinder 11; the upper part of the pressure block passes through a boss-shaped round hole in the center of the pressure block 13, and a circuit connection point is led out from the top end of the gas generator 12; the lower part of the air cylinder passes through the side wall of the air cylinder 11, a rubber pad 14 is arranged at the contact part to fill up the gap and enhance the air tightness, and the bottom end of the air cylinder is provided with an air outlet. The baffle 15 is three small cuboids evenly distributed around the axis of the cylinder, and is fastened with screws on the middle step plane at the inner side of the cylinder 11. The bearing 17 is cylindrical and annular, the outer side of the bearing is embedded in the inner wall of the cylinder 11, and the inner side of the bearing is attached to the piston 16. The piston 16 is also in a boss shape, the upper end is tightly attached to the baffle 15 in a release state, the annular groove on the lower end face is tightly attached to the return spring 18, and the outer side is attached to the inner surface of the bearing 17, so that friction generated in the movement process is reduced. The return spring 18 is placed at the bottom end of the cylinder in a raised position, one side of which is pressed on the piston 16 and the other side of which is pressed on the bottom end of the cylinder and is in a compressed state.
The insulating part is composed of an insulator 20, an inner sleeve 21 and an over travel spring 23, wherein: the insulator 20 is U-shaped and tightly embedded outside the inner sleeve 21; the inner sleeve 21 is also tightly nested inside the insulator 20 in U shape, semi-surrounding the overtravel spring 23, and the opening is screwed with the slotted nut 22. The slotted nut 22 is an annular cylinder, the center of the slotted nut is provided with a hole for the pull rod 30 to pass through, the outer side of the slotted nut is fastened with the inner sleeve 21 through threads, the upper surface of the slotted nut is provided with a groove and is matched with a clamp to facilitate screwing-in and screwing-out, and the lower surface of the slotted nut and a disc at the tail end of the pull rod 30 are attached to the contactor in a. The overtravel spring 23 is placed in the inner sleeve 21, one end is a disk at the tail end of the pull rod 30, the other end is the inner sleeve 21, and the inner sleeve is always in a compressed state.
The contact part comprises a moving contact 25, a fixed contact 26, a gas-tight insulating shell 28 and a corrugated pipe 27, wherein: the static contact 26 is a cylinder, the lower surface is attached to the static conductive bar 29, and the upper surface is opposite to the movable contact 25. The moving contact 25 is a cylinder, the upper surface of which is attached to the moving conductive bar 24, and the lower surface of which is attached to the static contact 26 under the condition of closing the contactor. The contact and separation actions of the moving contact 25 and the static contact 26 realize the opening and closing functions of the contactor. The hermetic insulating housing 28 is a ceramic material with which arc quenching is facilitated and a vacuum state is maintained. The bellows 27 connects the movable contact 25 and the airtight insulating case 28, and is corrugated. The bellows 27 connects the airtight insulating housing 28 with the moving contact 25 and the stationary contact 26 which are coaxially opposite to each other to form a vacuum arc-extinguishing chamber.
the lower end of the pull rod 30 penetrates through the electromagnetic part and the insulating part, and a certain air gap is reserved between the upper end of the pull rod and the lower end of the piston 16, wherein the specific conditions are as follows: in the structure of the electromagnetic part, the lower end of a pull rod 30 penetrates through an upper magnetic cylinder cover 1, a static iron core 4, a closing spring 9 and a lower magnetic cylinder cover 3 of the electromagnetic part and is fastened with a movable iron core 5 in a threaded manner, in the structure of the insulating part, the pull rod 30 penetrates through a slotted nut 22, a disc at the tail end extends into an inner sleeve 21, the upper end face of the disc and the slotted nut 22 are attached to the contactor under the condition of opening, and the lower end face of the disc is attached to an over travel spring 23 in a compressed state. The conductive bar is used for connecting into a main loop, wherein: the moving contact bar 24 is connected with the moving contact 25, and the static contact bar 29 is connected with the static contact 26. The manual opening rod 19 is horizontally arranged on the pull rod 30, and the manual opening and closing functions of the contactor are realized by utilizing the lever principle.
As shown in fig. 4-7, the working principle of the contactor of the present invention is as follows:
the block permanent magnet 8 generates a magnetic field, two closed magnetic flux paths are formed from the N pole and return to the S pole, and one closed magnetic flux path returns to the permanent magnet 8 from the permanent magnet 8 through the magnetic conductive ring 7, the movable iron core 5, the static iron core 4, the upper magnetic cylinder cover 1 and the magnetic cylinder 2 to generate electromagnetic attraction force F for reducing the air gap between the movable iron core 5 and the static iron core 41(ii) a The other one returns to the permanent magnet 8 from the permanent magnet 8 through the magnetic conductive ring 7, the movable iron core 5, the lower magnetic cylinder cover 3 and the magnetic cylinder 2 to generate electromagnetic attraction force F for reducing the air gap between the movable iron core 5 and the lower magnetic cylinder cover 32. In the condition of opening the brake, the air gap between the movable iron core 5 and the static iron core 4 is far smaller than the air gap between the movable iron core 5 and the lower magnetic cylinder cover 3, so F1>F2The movable iron core 5 is kept at the side with small air gap and overcomes the pressure F of the closing spring 9NAnd the contactor is in a release state.
The piston 16 has a disc with a stop 15 and a return spring 18. Under the condition of opening the brake, the pressure F 'of a return spring'NActing to hold the contactor auxiliary drive structure in a released state.
after the coil 6 is electrified, the direction of the magnetic flux which returns to the permanent magnet 8 through the magnetic conductive ring 7, the movable iron core 5, the static iron core 4, the upper magnetic cylinder cover 1 and the magnetic cylinder 2 is opposite to the direction of the magnetic flux which is generated through the upper magnetic cylinder cover 1, the magnetic cylinder 2, the lower magnetic cylinder cover 3, the movable iron core 5 and the static iron core 4,The magnetic flux in the same direction as the magnetic flux returning to the permanent magnet 8 through the magnetic conductive ring 7, the movable iron core 5, the lower magnetic cylinder cover 3 and the magnetic cylinder 2 weakens the air gap magnetic flux between the movable iron core 5 and the static iron core 4, and the electromagnetic attraction force F1With consequent reduction of the electromagnetic attraction force F2self-closing force and closing spring force F of vacuum arc-extinguishing chamber in same directionNThe sum is greater than F1When the switch is turned on, the movable iron core 5 drives the pull rod 30, the insulating part structure and the movable contact 25 to move downwards until the switch is closed, and the connected main loop is switched on.
in the condition of closing, the air gap between the movable iron core 5 and the lower magnetic cylinder cover 3 is far smaller than the air gap between the movable iron core 5 and the static iron core 4, so F2>F1The movable iron core 5 is kept at the side with small air gap and under the pressure F of the closing spring 9Nand under the combined action of the self-closing force of the vacuum arc-extinguishing chamber, the contactor is in a suction state.
When the main loop fails, the coil 6 is started by the normal trigger signal, and the contactor is not normally connected, the auxiliary driving structure is immediately started to perform pneumatic switching-on. When the ignition circuit gives a trigger signal to ignite the gas generator, a large amount of gas is generated in the cylinder in a short time as gas thrust F acting on the inner wall of the cylinder3greater than pressure F 'of return spring 18'NMagnetic force F of the electromagnetic part1the resultant force of the self-closing force of the vacuum interrupter pushes the only movable part piston 16 against the pressure F 'of the return spring 18'NThe pull rod 30, the movable iron core 5, the insulating part and the movable contact 25 are driven to move downwards until the closing is closed, and the connected main loop is conducted.
The utility model discloses can adopt two kinds of drive methods of above-mentioned electromagnetic principle, pneumatic principle to close a floodgate with the contactor, ensure that the contactor reliably closes a floodgate under the major loop goes out the problem condition.
Claims (10)
1. The utility model provides a gas-electricity mixes and moves two contactors that drive, its characterized in that the contactor includes electromagnetism part, auxiliary drive part, insulating part, contact part, hand branch pole, pull rod and inserts the power strip and the static power strip that move of major loop, wherein:
the electromagnetic part consists of an upper magnetic cylinder cover, a magnetic cylinder, a lower magnetic cylinder cover, a static iron core, a movable iron core, a coil, a magnetic conduction ring, a permanent magnet and a closing spring; the upper magnetic cylinder cover, the magnetic cylinder and the lower magnetic cylinder cover are coaxially and sequentially connected from top to bottom to form a hollow cylinder; the static iron core is tightly attached to the lower end of the upper magnetic cylinder cover, a coil is wound on the outer side of the static iron core, and a movable iron core which is coaxial and can move up and down relatively is arranged below the static iron core; the outer side of the movable iron core is surrounded with a magnetic conduction ring; the outer side of the magnetic conduction ring is tightly attached to the permanent magnet;
The auxiliary driving part consists of a cylinder cover, a cylinder, a gas generator, a pressing block, a rubber pad, a baffle, a piston, a bearing and a return spring; the cylinder cover and the cylinder enclose a hollow column, and enclose the lower end of the gas generator, the baffle, the piston, the bearing and the return spring; a boss-shaped round hole is formed in the side wall of one side of the upper portion of the air cylinder, a bearing is embedded in the inner wall of the lower portion of the air cylinder, a round hole is formed in the center of the bottom end of the air cylinder, and the round hole extends upwards to form a cylindrical ring shape for a piston to penetrate through; a boss-shaped round hole is formed in the middle of the pressing block; the lower end of the gas generator penetrates through a boss-shaped round hole in the side wall of the cylinder, a rubber pad is clamped at the contact position to enhance the air tightness, the upper end of the gas generator penetrates through a boss-shaped round hole of the pressing block, and the pressing block and the cylinder are fixed through screws to clamp the gas generator; the piston is in a boss shape, the outer side of the piston is tightly attached to a bearing embedded in the inner wall of the cylinder, the upper end of the piston is tightly attached to the baffle in a release state, and the hollow part of the lower end of the piston is provided with a return spring;
The insulating part consists of an insulator, an inner sleeve and an over travel spring; the insulator and the inner sleeve are nested together in a U shape and are semi-surrounded on the outer side of the over travel spring, and the opening is sealed by a slotted nut;
The contact part comprises a moving contact, a fixed contact, an airtight insulating shell and a corrugated pipe; the bellows is connected with the airtight insulating shell and encloses a vacuum arc extinguish chamber together with the moving contact and the static contact which are coaxially opposite;
The hand separating rod is horizontally arranged on the pull rod;
The lower end of the pull rod penetrates through and is connected with the electromagnetic part and the insulating part, and a certain air gap is reserved between the upper end of the pull rod and the lower end of the piston;
The movable conducting bar is connected with the movable contact, and the static conducting bar is connected with the static contact.
2. The gas-electric hybrid double-drive contactor as claimed in claim 1, wherein the magnetic cylinder is ring-shaped, the upper and lower surfaces of the magnetic cylinder are respectively fastened with the upper magnetic cylinder cover and the lower magnetic cylinder cover by screws, and the side wall of the magnetic cylinder is provided with a hole for matching with the lead output of the coil; the upper surface and the lower surface of the upper magnetic cylinder cover are both planes, the center of the upper magnetic cylinder cover is provided with a hole, and the lower surface of the upper magnetic cylinder cover is fastened with a static iron core screw.
3. The gas-electric hybrid double-drive contactor as claimed in claim 1 or 2, wherein the static iron core is cylindrical, the outer side of the static iron core is tightly attached to the coil, a hole is formed in the center of the static iron core for a pull rod and a closing spring to pass through, the upper surface of the static iron core is fastened with an upper magnetic cylinder cover screw, and the lower surface of the static iron core is attached to the movable iron core under the condition of opening the contactor; the movable iron core upper surface is the trapezoidal surface, with quiet iron core laminating under the contactor separating brake condition, presents the major-minor polar surface state, and leaves the shrinkage pool of placing closing spring in the center, and the movable iron core lower surface is the trapezium structure, with lower magnetic cylinder lid laminating under closing brake condition, presents the major-minor polar surface condition, and the center is porose, with pull rod screw-thread fastening.
4. The gas-electric hybrid double-drive contactor as claimed in claim 1, wherein the coil has an inner side closely attached to the static iron core and an outer side surrounding the magnetic cylinder, an upper end surface closely attached to the lower end surface of the upper magnetic cylinder cover, and a convex hull matching with the groove under the upper magnetic cylinder cover, wherein the lead-out wire is led out from the hole on the magnetic cylinder wall, and the lower end surface is attached to the permanent magnetic conductive ring; the permanent magnet blocks are attached to the outer side of the magnetic conduction ring to form a ring shape, the upper surfaces of the radially magnetized block permanent magnets are tightly attached to the coil, and the outer sides of the radially magnetized block permanent magnets are tightly attached to the magnetic cylinder; the magnetic conduction ring is an annular cylinder, surrounds the outer side of the movable iron core, is provided with a certain air gap with the movable iron core to avoid friction during movement, is attached to the coil on the upper surface, and is tightly attached to the permanent magnet on the outer side.
5. The gas-electric hybrid double-drive contactor as claimed in claim 1, wherein the upper and lower surfaces of the cylinder cover are both flat surfaces, and are fastened with the cylinder threads, the outer side of the cylinder is rectangular, the opening is upward, the hollow part of the inner side is of a stepped structure, the horizontal section is a circular profile, and the upper surface of the cylinder is provided with an annular groove for placing a rubber pad in a matching manner.
6. The gas-electric hybrid double-drive contactor as claimed in claim 1 or 5, wherein the gas generator has a cylindrical protrusion in the middle part thereof fixed between the pressing block and the side wall of the cylinder; the upper part of the pressure block penetrates through a boss-shaped round hole in the center of the pressure block, and a circuit connection point is led out from the top end of the gas generator; the lower part of the cylinder penetrates through the side wall of the cylinder, a rubber pad is arranged at the contact part to fill the gap and enhance the air tightness, and an air outlet hole is arranged at the bottom end of the cylinder; the baffle is three cuboids which surround the axis of the cylinder and are uniformly distributed, and the baffle is fastened with screws of the middle step plane at the inner side of the cylinder.
7. The gas-electric hybrid double-drive contactor as claimed in claim 1 or 5, wherein the bearing is cylindrical and annular, the outer side of the bearing is embedded in the inner wall of the cylinder, and the inner side of the bearing is attached to the piston; the reset spring is arranged at the bulge at the bottom end of the air cylinder, one side of the reset spring is pressed on the piston, and the other side of the reset spring is pressed at the bottom end of the air cylinder and is in a compressed state.
8. The gas-electric hybrid double-drive contactor as claimed in claim 1, wherein the slotted nut is an annular cylinder with a hole in the center for the pull rod to pass through, the outer side of the slotted nut is fastened with the inner sleeve by screw threads, the upper surface of the slotted nut is provided with a groove, and the lower surface of the slotted nut is attached to a disc at the tail end of the pull rod in the opening state of the contactor.
9. the gas-electric hybrid double-drive contactor as claimed in claim 1, wherein the static contact is a cylinder, the lower surface of the static contact is attached to the static conductive bar, and the upper surface of the static contact is opposite to the moving contact; the moving contact is a cylinder, the upper surface of the moving contact is attached to the moving conductive bar, and the lower surface of the moving contact and the fixed contact are attached to the contactor under the condition of closing; the airtight insulating shell is made of ceramic materials.
10. The gas-electric hybrid double-drive contactor as claimed in claim 1, wherein in the electromagnetic part, the pull rod passes through the upper magnetic cylinder cover, the static iron core, the closing spring and the lower magnetic cylinder cover and is fastened with the movable iron core through screw threads; in the insulating part, the pull rod penetrates through the slotted nut, the disc at the tail end extends into the inner sleeve, and the lower end face of the disc is attached to the over travel spring in a compressed state under the condition that the upper end face of the disc and the slotted nut are attached to the opening of the contactor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921046932.4U CN209804562U (en) | 2019-07-06 | 2019-07-06 | Gas-electric hybrid double-drive contactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921046932.4U CN209804562U (en) | 2019-07-06 | 2019-07-06 | Gas-electric hybrid double-drive contactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189963A (en) * | 2019-07-06 | 2019-08-30 | 嘉润电气科技有限公司 | A kind of mixed dynamic double drive contactors of pneumoelectric |
| CN111415838A (en) * | 2020-03-25 | 2020-07-14 | 嘉润电气科技有限公司 | Novel dual-drive double-coil single-phase contactor |
-
2019
- 2019-07-06 CN CN201921046932.4U patent/CN209804562U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189963A (en) * | 2019-07-06 | 2019-08-30 | 嘉润电气科技有限公司 | A kind of mixed dynamic double drive contactors of pneumoelectric |
| CN110189963B (en) * | 2019-07-06 | 2024-05-07 | 嘉润电气科技有限公司 | Pneumatic-electric hybrid double-drive contactor |
| CN111415838A (en) * | 2020-03-25 | 2020-07-14 | 嘉润电气科技有限公司 | Novel dual-drive double-coil single-phase contactor |
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