CN111415838A - Novel dual-drive double-coil single-phase contactor - Google Patents
Novel dual-drive double-coil single-phase contactor Download PDFInfo
- Publication number
- CN111415838A CN111415838A CN202010219383.7A CN202010219383A CN111415838A CN 111415838 A CN111415838 A CN 111415838A CN 202010219383 A CN202010219383 A CN 202010219383A CN 111415838 A CN111415838 A CN 111415838A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic mechanism
- iron core
- main
- magnetic
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
Abstract
A novel dual-drive double-coil single-phase contactor relates to a contactor. Inside the contactor shell, additional insurance electromagnetic mechanism is at the top, main electromagnetic mechanism is in the intermediate position, the two structure is the same, main electromagnetic mechanism's main coil outside still overlaps and is equipped with auxiliary coil, insulating connector mechanism sets up in main electromagnetic mechanism below, contact mechanism sets up in the bottom, adopt vacuum interrupter, airtight insulating shell upper end sets up the bellows with the moving contact corresponding position, the moving contact is connected fixedly with the insulator bottom, manual actuating mechanism includes pull rod and hand branch pole, the pull rod runs through and from top to bottom connects gradually additional insurance electromagnetic mechanism, main electromagnetic mechanism and insulating connector mechanism, hand branch pole intermediate position closes on upper end position joint cooperation with the pull rod, it is articulated that its inboard end corresponds the position with the contactor shell inner wall. The circuit breaker has redundant protection, increases driving modes and can effectively improve the reliability of closing.
Description
Technical Field
The invention relates to a contactor, in particular to a novel dual-drive double-coil single-phase contactor, and belongs to the technical field of circuit control.
Background
The contactor is widely applied to various fields of photovoltaic power generation, new energy, power systems, petroleum, chemical industry, coal mines, metallurgy, electrified railways and the like. The switch-on circuit is mainly used for switching on a main circuit or switching the main circuit as a bypass switch, and the switch-on reliability of the switch-on circuit is related to the safe operation of the whole circuit system. The structure of the existing contactor is mainly a single magnetic circuit structure, and the structure is that a control signal is triggered, a coil is electrified, and then the contactor is switched on. If a problem occurs in the process of triggering signals or the coil electrifying link, the contactor cannot be normally switched on, and the safety of a main loop and even the whole system is affected. Therefore, a contactor which increases a driving method and can effectively improve the closing reliability is necessary.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the novel dual-drive double-coil single-phase contactor which has redundant protection, increases the driving mode and can effectively improve the closing reliability.
In order to achieve the purpose, the invention adopts the following technical scheme: a novel dual-drive double-coil single-phase contactor comprises a contactor shell, a main electromagnetic mechanism, an additional safety electromagnetic mechanism, an insulating connecting piece mechanism, a contact mechanism and a manual driving mechanism which are arranged in the contactor shell,
the safety electromagnetic mechanism is fixed at the top, the main electromagnetic mechanism is fixed at the middle position, the main electromagnetic mechanism and the safety electromagnetic mechanism are identical in structure and respectively comprise an upper magnetic cylinder cover, a static iron core, a movable iron core, a permanent magnet, a magnetic conduction ring, a magnetic cylinder, a lower magnetic cylinder cover and a main coil, the upper magnetic cylinder cover and the lower magnetic cylinder cover are fixedly sealed, the upper end and the lower end of the magnetic cylinder are fixed on the lower surface of the upper magnetic cylinder cover, the movable iron core is arranged below the static iron core, the magnetic conduction ring is sleeved on the outer side of the movable iron core in a clearance mode, the permanent magnet is radially magnetized and distributed between the magnetic conduction ring and the magnetic cylinder, the main coil is arranged between the static iron core and the magnetic cylinder and fixedly connected with the upper magnetic cylinder cover, and;
the insulating connecting piece mechanism is arranged below the main electromagnetic mechanism and comprises an insulator, an inner sleeve, a slotted nut and an overtravel spring, wherein the insulator and the inner sleeve are both round slotted members and are fastened together, the slotted nut is arranged on the outer side in a threaded manner and is in threaded fastening connection with the notch of the inner sleeve, and the overtravel spring is installed in the inner sleeve in a compressed manner;
the contact mechanism is arranged at the bottom, adopts a vacuum arc extinguish chamber and comprises a static contact, a moving contact, an airtight insulating shell and a corrugated pipe, wherein the fixed end of the bottom of the static contact is attached to the connecting end of the static conducting bar, the mounting end of the top of the moving contact is attached to the connecting end of the moving conducting bar, a through hole is formed in the upper end of the airtight insulating shell corresponding to the moving contact, the corrugated pipe is fixed to play a role in sliding sealing, and the moving contact is fixedly connected with the bottom of the insulator;
the manual driving mechanism comprises a pull rod and a manual separation rod, the pull rod penetrates through and is sequentially connected with an additional safety electromagnetic mechanism, a main electromagnetic mechanism and an insulating connecting piece mechanism from top to bottom, the upper end of the pull rod is hinged to a movable iron core of the additional safety electromagnetic mechanism, the pull rod is in threaded fastening connection with the movable iron core of the main electromagnetic mechanism, the lower end of the pull rod penetrates through a slotted nut of the insulating connecting piece mechanism and is externally expanded to form a disc surface, the middle position of the manual separation rod is in clamping connection with the pull rod close to the upper end position, and the inner end of the manual separation rod is hinged to the corresponding position.
Compared with the prior art, the invention has the beneficial effects that: the invention has redundancy protection, when the normal trigger signal starts the main coil of the main electromagnetic mechanism, but the contactor contact does not act, the additional insurance electromagnetic mechanism and the auxiliary coil added to the main electromagnetic mechanism are started immediately, the main coil of the additional insurance electromagnetic mechanism and the auxiliary coil added to the main electromagnetic mechanism are switched on, the additional insurance electromagnetic mechanism generates electromagnetic force and other stress resultant force to drive the movable iron core, the insulating connecting piece mechanism and the movable contact of the main electromagnetic mechanism to complete the closing action of the contactor, and the manual driving mechanism is added, thus effectively improving the closing reliability.
Drawings
Fig. 1 is a schematic side view of the dual-drive dual-coil single-phase contactor according to the present invention;
fig. 2 is a schematic structural diagram of a front view of the novel dual-drive dual-coil single-phase contactor according to the present invention;
FIG. 3 is a cross-sectional view of the movable core of the main electromagnetic mechanism of the present invention;
FIG. 4 is a first schematic view of the flux path of the main electromagnetic mechanism of the present invention, in an open state;
FIG. 5 is a second schematic view of the magnetic flux path of the main electromagnetic mechanism of the present invention, in a closed state;
FIG. 6 is a first schematic view of the flux path of the safety-added electromagnetic mechanism of the present invention, in the open state;
FIG. 7 is a second schematic view of the magnetic flux path of the additional safety electromagnetic mechanism of the present invention, in a closed state;
fig. 8 is a schematic view of the structure of the tie rod of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention discloses a novel dual-drive double-coil single-phase contactor, including:
contactor housing and contactor arranged therein
The electromagnetic mechanism is fixed at the top in the contactor shell, the main electromagnetic mechanism is fixed at the middle position in the contactor shell, the two structures are the same, the electromagnetic mechanism comprises an upper magnetic cylinder cover 101, a static iron core 102, a movable iron core 103, a permanent magnet 104, a magnetic conductive ring 105, a magnetic cylinder 106, a lower magnetic cylinder cover 107, a closing spring 108 and a main coil 109, the magnetic cylinder 106 is cylindrical, the upper magnetic cylinder cover 101 and the lower magnetic cylinder cover 107 are respectively fixed at the upper end and the lower end of the magnetic cylinder 106 through screws in a sealing manner to form a hollow cylinder shape for surrounding other components, the static iron core 102 is cylindrical and is fixed at the central position of the lower surface of the upper magnetic cylinder cover 101 through screws in a bonding manner, the movable iron core 103 is coaxially and oppositely arranged below the static iron core 102, the upper end and the lower end of the movable iron core 103 are provided with stepped surfaces, the upper surface of the movable iron core 103 is bonded with the static iron core 102 in a, the center positions of the lower surface of the static iron core 102 and the upper surface of the movable iron core 103 are respectively provided with a concave groove, the two concave grooves form a cavity for placing a closing spring 108, the closing spring 108 is a rectangular spring and is supported in the cavity in a compressed state, the height of a magnetic conductive ring 105 is the same as that of a permanent magnet 104, the magnetic conductive ring 105 is coaxially sleeved on the outer side of the movable iron core 103, a certain air gap is reserved between the inner side wall of the magnetic conductive ring 105 and the outer side wall of the movable iron core 103 to prevent friction in the movement process of the movable iron core 103, the outer side wall of the magnetic conductive ring is attached to the permanent magnet 104, the permanent magnet 104 is in a block form, each block is in a sector shape and can be wound into a ring shape after being spliced, the magnetizing direction of the ring is radial magnetizing and is distributed between the magnetic conductive ring 105 and a magnetic cylinder 106, a main coil 109 is coaxially arranged, the magnetic cylinder cover is fixedly connected with a positioning groove preset on the lower surface of the upper magnetic cylinder cover 101 to prevent the main coil 109 from rotating, and the lower end surface of the main coil 109 is attached to the permanent magnet 104 and the upper end surface of the magnetic conductive ring 105, wherein an auxiliary coil 110 is sleeved on the outer side of the main coil 109 of the main electromagnetic mechanism, a through hole for leading out is reserved in the magnetic cylinder 106, and in addition, the permanent magnet 104 can also adopt a coil to replace the generated magnetic field;
the insulating connecting piece mechanism is arranged below the main electromagnetic mechanism in the contactor shell and comprises an insulator 201, an inner sleeve 202, a slotted nut 203 and an over travel spring 204, wherein the insulator 201 and the inner sleeve 202 are both circular groove-shaped members, the outer side wall of the inner sleeve 202 is the same as the inner side wall of the insulator 201 in size and is fastened together, an inner thread is arranged at the notch of the inner sleeve 202, the slotted nut 203 is in a flat cylindrical shape, the thread of the slotted nut 203 is arranged on the outer side wall and is fastened and connected with the notch of the inner sleeve 202 in a threaded manner, and the over travel spring 204 is a rectangular spring and is;
the contact mechanism is arranged at the inner bottom of a contactor shell, adopts a vacuum arc extinguish chamber to improve the voltage-resistant grade and the pollution-resistant grade, and comprises a static contact 301, a dynamic contact 302, a static conductive bar 303, a dynamic conductive bar 304, an airtight insulating shell 305 and a corrugated pipe 306, wherein the static contact 301 is positioned below the dynamic contact 302, the static contact 301 and the dynamic contact 302 are both cylinders with plane contact surfaces, the dynamic contact 302 is attached to the contact surface of the static contact 301 in a closing state, the connecting end of the static conductive bar 303 is attached to the fixed end at the bottom of the static contact 301, the connecting end of the dynamic conductive bar 304 is attached to the mounting end at the top of the dynamic contact 302, the outer ends of the static conductive bar 303 and the dynamic conductive bar 304 are connected into a main circuit, the contact and the disconnection of the dynamic contact 302 and the static contact 301 realize the closing and opening functions of the contactor, the airtight insulating shell 305, a through hole is formed in the upper end of the airtight insulating shell 305 and corresponds to the moving contact 302, a corrugated pipe 306 is fixed, the corrugated pipe 306 is connected with the moving contact 302 and plays a role in sliding sealing with the airtight insulating shell 305, a threaded blind hole is formed in the top of the moving contact 302, a threaded connector is vertically arranged at the bottom of the insulator 201, and the moving contact 302 is fixedly connected with the bottom of the insulator 201 in a threaded fastening mode;
the manual driving mechanism comprises a pull rod 401 and a manual separating rod 402, wherein the pull rod 401 penetrates through and is sequentially connected with an additional safety electromagnetic mechanism, a main electromagnetic mechanism and an insulating connector mechanism from top to bottom, a lower magnetic cylinder cover 107 of the additional safety electromagnetic mechanism, an upper magnetic cylinder cover 101 of the main electromagnetic mechanism and a lower magnetic cylinder cover 107 of the main electromagnetic mechanism are provided with center holes, the upper end of the pull rod 401 is hinged with a movable iron core 103 of the additional safety electromagnetic mechanism, the middle position of the pull rod 401 penetrates through the center holes of the upper magnetic cylinder cover 101 and the lower magnetic cylinder cover 107 of the main electromagnetic mechanism and simultaneously penetrates through a static iron core 102 and the movable iron core 103 of the main electromagnetic mechanism, the pull rod 401 and the movable iron core 103 of the main electromagnetic mechanism are fixedly connected in a threaded fastening mode, the lower end of the pull rod 401 penetrates through a slotted nut 203 of the insulating connector mechanism and is externally expanded with a disc surface 411, the disc surface 411 is attached to the lower surface of the slotted nut, an over travel spring 204 of, the hand separating rod 402 and the pull rod 401 are installed at 90 degrees to form leverage, the middle position of the hand separating rod is in clamping fit with the position, close to the upper end, of the pull rod 401, the inner side end of the hand separating rod is hinged to the corresponding position of the inner wall of the contactor shell, the position, corresponding to the outer side end of the contactor shell, of the contactor shell is provided with a swinging notch, and the hand separating rod 402 swings up and down to drive the pull rod 401 to move up and down to perform manual auxiliary brake opening.
The working principle of the invention is as follows:
the main electromagnetic mechanism comprises a plurality of permanent magnets 104 which are spliced together and wound into a ring shape, and forms two magnetic flux paths with an upper magnetic cylinder cover 101, a static iron core 102, a movable iron core 103, a magnetic conductive ring 105, a magnetic cylinder 106 and a lower magnetic cylinder cover 107, wherein one path starts from the N pole of the permanent magnet 104, passes through the magnetic conductive ring 105, the movable iron core 103, the static iron core 102, the upper magnetic cylinder cover 101 and the magnetic cylinder 106, returns to the S pole of the permanent magnet 104 and generates upward magnetic force F1The other path starts from the N pole of the permanent magnet 104, passes through the magnetic conductive ring 105, the movable iron core 103, the lower magnetic cylinder cover 107 and the magnetic cylinder 106, returns to the S pole of the permanent magnet 104 and generates downward magnetic force F2. In the opening state, the air gap between the upper end surface of the movable iron core 103 and the main and auxiliary pole surfaces at the lower end of the static iron core 102 is far smaller than the air gap between the lower end surface of the movable iron core 103 and the main and auxiliary pole surfaces at the upper end of the lower magnetic cylinder cover 107, so that F1>F2And overcomes the elastic force F of the closing spring 108N1And the vacuum interrupter produces a self-closing force (the closing spring 108 of the main electromagnetic mechanism can also be removed) so that the contactor is kept in the release position;
the additional safety electromagnetic mechanism is similar to the main electromagnetic mechanism, and as shown in fig. 6, one path starts from the N pole of the permanent magnet 104, passes through the magnetic conductive ring 105, the movable iron core 103, the static iron core 102, the upper magnetic cylinder cover 101 and the magnetic cylinder 106, returns to the S pole of the permanent magnet 104, and generates an upward magnetic force F3The other path starts from the N pole of the permanent magnet 104, passes through the magnetic conductive ring 105, the movable iron core 103, the lower magnetic cylinder cover 107 and the magnetic cylinder 106, returns to the S pole of the permanent magnet 104 and generates downward magnetic force F4. In the opening state, the air gap between the upper end surface of the movable iron core 103 and the main and auxiliary pole surfaces at the lower end of the static iron core 102 is far smaller than the air gap between the lower end surface of the movable iron core 103 and the main and auxiliary pole surfaces at the upper end of the lower magnetic cylinder cover 107, so that F3>F4And overcomes the elastic force F of the closing spring 108N2And the vacuum arc-extinguishing chamber generates self-closing force (the closing spring 108 of the additional safety electromagnetic mechanism can also be removed), so that the contact is realizedThe device remains in the release position;
in the main electromagnetic mechanism, when the main coil 109 receives the trigger signal, the main coil is energized to form a magnetic flux path with the upper cylinder cover 101, the stationary core 102, the movable core 103, the cylinder 106, and the lower cylinder cover 107, and the magnetic flux direction refers to the magnetic flux path shown in fig. 5, and the magnetic flux direction is the magnetic flux generated by the permanent magnet 104 passing through the magnetic conductive ring 105, the movable core 103, the stationary core 102, the upper cylinder cover 101, the cylinder 106, and the return permanent magnet 104 (i.e., the magnetic force F is generated)1Magnetic flux of) are opposite in direction and tend to cancel out, resulting in a magnetic force F1And decreases. When in the upward direction F1The closing spring 108 overcoming the downward direction generates an elastic force FNAnd after the vacuum arc-extinguishing chamber generates self-closing force (if the vacuum arc-extinguishing chamber does not contain a closing spring 108, only F1Against self-closing force generated by the vacuum interrupter), the resultant force is less than F in the downward direction2Then the movable iron core 103 drives the pull rod 401, the insulating connecting piece mechanism and the movable contact 302 to move downwards until the pull-in position, and the closing action is completed. After the switch is switched on, the current in the main loop passes through the static conducting bar 303, the static contact 301, the moving contact 302 and the moving conducting bar 304 to complete the function of switching on the loop;
at the switching-on position, referring to fig. 5, the static iron core 102, the movable iron core 103, the permanent magnet 104, the magnetic conductive ring 105, the magnetic cylinder 106 and the lower magnetic cylinder cover 107 form a magnetic circuit, and the air gap between the upper end surface of the movable iron core 103 and the main and auxiliary pole surfaces of the lower end surface of the static iron core 102 is much larger than the air gap between the lower end surface of the movable iron core 103 and the main and auxiliary pole surfaces of the upper end surface of the lower magnetic cylinder cover 107, so that F is1<F2And the elastic force F of the closing spring 108NAnd the self-closing direction of the vacuum arc extinguish chamber always promotes the attraction with F2The directions are the same, so the resultant force keeps the contactor at the closing position;
when the main electromagnetic mechanism is out of order, for example, when the main coil 109 is open, the normal trigger signal activates the main coil 109, and when the contactor contacts are not normally closed, the additional safety electromagnetic mechanism and the auxiliary coil 110 are simultaneously activated immediately. In the electromagnetic mechanism with additional insurance, after the main coil 109 receives the trigger signal, the electrified main coil and the upper cylinder cover 101, the static iron core 102, the movable iron core 103, the cylinder 106 and the lower cylinder cover 107 form a magnetic flux path and a magnetic flux directionReferring to fig. 7, the magnetic flux direction is the magnetic flux generated by the permanent magnet 104 through the magnetic conductive ring 105, the movable iron core 103, the stationary iron core 102, the upper cylinder cover 101, the cylinder 106, and the return permanent magnet 104 (i.e., the magnetic force F is generated)3Magnetic flux of) are opposite in direction and tend to cancel out, resulting in a magnetic force F3And decreases. Meanwhile, after receiving the trigger signal, the auxiliary coil 110, after being energized, forms a magnetic flux path with the upper cylinder cover 101, the stationary core 102, the movable core 103, the cylinder 106, and the lower cylinder cover 107 of the main electromagnetic mechanism, and the magnetic flux direction refers to the magnetic flux path shown in fig. 5, and the magnetic flux path and the magnetic flux generated by the permanent magnet 104 passing through the magnetic conductive ring 105, the movable core 103, the stationary core 102, the upper cylinder cover 101, the cylinder 106, and the return permanent magnet 104 (i.e., generates a magnetic force F)1Magnetic flux of) are opposite in direction and tend to cancel out, resulting in a magnetic force F1And decreases. Electromagnetic force F in upward direction3The closing spring 108 of the additional safety electromagnetic mechanism in the downward direction generates the elastic force FN2The resultant force is greater than the electromagnetic force F of the main electromagnetic mechanism reduced by the offset of the magnetic flux generated by the auxiliary coil 1101And an elastic force F generated by the closing spring 108N1And the sum of self-closing forces generated by the vacuum arc-extinguishing chamber, so that the movable iron core 103 with the additional insurance electromagnetic mechanism moves to the closing side, and simultaneously drives the pull rod 401, the movable iron core 103, the insulating connecting piece mechanism and the movable contact 302 to move, and in the moving process, along with the position change of the movable iron core 103, the electromagnetic force F4The switch-on operation is promoted to be gradually increased until the pull-in position is reached, and the switch-on operation is finished. After the circuit is switched on, the current in the main circuit passes through the static contact bar 303, the static contact 301, the moving contact 302 and the moving contact bar 304 to complete the function of switching on the circuit;
when the main coil 109 of the main electromagnetic mechanism, the auxiliary coil 110 and the main coil 109 of the additional safety electromagnetic mechanism are simultaneously connected to the trigger signal. In the safety-added electromagnetic mechanism, after the main coil 109 receives the trigger signal, it forms a magnetic flux path with the upper cylinder cover 101, the stationary core 102, the movable core 103, the cylinder 106, and the lower cylinder cover 107, and the magnetic flux direction is as shown in fig. 7, and the magnetic flux direction is the magnetic flux generated by the permanent magnet 104 passing through the magnetic conductive ring 105, the movable core 103, the stationary core 102, the upper cylinder cover 101, the cylinder 106, and the return permanent magnet 104 (i.e. generating the magnetic force F)3Magnetic flux) direction phase ofConversely, the magnetic force F is in a counteracting trend3And decreases. Electromagnetic force F in upward direction3The closing spring 108 smaller than the downward direction generates an elastic force FN2And magnetic force F generated by the permanent magnet 104, the magnetic ring 105, the movable iron core 103, the static iron core 102, the lower magnetic cylinder cover 107, the magnetic cylinder 106 and the return permanent magnet 104 of the main electromagnetic mechanism2The resultant force, the movable iron core 103 of the additional safety electromagnetic mechanism moves downwards (along with the change of the position, F)4Gradually becoming larger to facilitate closing). Meanwhile, after receiving the trigger signal, the main coil 109 and the auxiliary coil 110 of the main electromagnetic mechanism, after being energized, form a magnetic flux path with the upper cylinder cover 101, the stationary core 102, the movable core 103, the cylinder 106, and the lower cylinder cover 107, and the magnetic flux direction refers to the magnetic flux path shown in fig. 5, and the magnetic flux direction and the magnetic flux generated by the permanent magnet 104 passing through the magnetic conductive ring 105, the movable core 103, the stationary core 102, the upper cylinder cover 101, the cylinder 106, and the return permanent magnet 104 (i.e. generating the magnetic force F)1Magnetic flux of) are opposite in direction and tend to cancel out, resulting in a magnetic force F1Decrease when F1Less than the downward thrust of the additional safety electromagnetic mechanism (i.e. F)3、F4And elastic force FN2Sum), the elastic force F generated by the closing spring 108N1And the sum of self-closing forces generated by the vacuum arc-extinguishing chamber, so that the two movable iron cores 103 of the main electromagnetic mechanism and the additional insurance electromagnetic mechanism simultaneously move to the closing side, and simultaneously drive the pull rod 401, the movable iron cores 103, the insulating connecting piece mechanism and the movable contact 302 to move, and in the moving process, along with the position change of the movable iron cores 103, the electromagnetic force F4The switch-on operation is promoted to be gradually increased until the pull-in position is reached, and the switch-on operation is finished.
The contactor can be switched on by adopting the three triggering modes, so that the contactor is ensured to be reliably switched on under the condition that a main loop has a problem, a manual driving mechanism is additionally arranged, and the pull rod 401 is driven to move up and down through the up-and-down swing of the manual opening rod 402 so as to perform manual auxiliary opening and closing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The utility model provides a novel dual drive twin coil single phase contactor, includes contactor housing and sets up at its inside main electromagnetic mechanism, its characterized in that: also comprises an additional safety electromagnetic mechanism, an insulating connecting piece mechanism, a contact mechanism and a manual driving mechanism,
the safety electromagnetic mechanism is fixed at the top, the main electromagnetic mechanism is fixed at the middle position, the main electromagnetic mechanism and the safety electromagnetic mechanism are identical in structure and respectively comprise an upper magnetic cylinder cover, a static iron core, a movable iron core, a permanent magnet, a magnetic conduction ring, a magnetic cylinder, a lower magnetic cylinder cover and a main coil, the upper magnetic cylinder cover and the lower magnetic cylinder cover are fixedly sealed, the upper end and the lower end of the magnetic cylinder are fixed on the lower surface of the upper magnetic cylinder cover, the movable iron core is arranged below the static iron core, the magnetic conduction ring is sleeved on the outer side of the movable iron core in a clearance mode, the permanent magnet is radially magnetized and distributed between the magnetic conduction ring and the magnetic cylinder, the main coil is arranged between the static iron core and the magnetic cylinder and fixedly connected with the upper magnetic cylinder cover, and;
the insulating connecting piece mechanism is arranged below the main electromagnetic mechanism and comprises an insulator, an inner sleeve, a slotted nut and an overtravel spring, wherein the insulator and the inner sleeve are both round slotted members and are fastened together, the slotted nut is arranged on the outer side in a threaded manner and is in threaded fastening connection with the notch of the inner sleeve, and the overtravel spring is installed in the inner sleeve in a compressed manner;
the contact mechanism is arranged at the bottom, adopts a vacuum arc extinguish chamber and comprises a static contact, a moving contact, an airtight insulating shell and a corrugated pipe, wherein the fixed end of the bottom of the static contact is attached to the connecting end of the static conducting bar, the mounting end of the top of the moving contact is attached to the connecting end of the moving conducting bar, a through hole is formed in the upper end of the airtight insulating shell corresponding to the moving contact, the corrugated pipe is fixed to play a role in sliding sealing, and the moving contact is fixedly connected with the bottom of the insulator;
the manual driving mechanism comprises a pull rod and a manual separation rod, the pull rod penetrates through and is sequentially connected with an additional safety electromagnetic mechanism, a main electromagnetic mechanism and an insulating connecting piece mechanism from top to bottom, the upper end of the pull rod is hinged to a movable iron core of the additional safety electromagnetic mechanism, the pull rod is in threaded fastening connection with the movable iron core of the main electromagnetic mechanism, the lower end of the pull rod penetrates through a slotted nut of the insulating connecting piece mechanism and is externally expanded to form a disc surface, the middle position of the manual separation rod is in clamping connection with the pull rod close to the upper end position, and the inner end of the manual separation rod is hinged to the corresponding position.
2. The novel dual-drive double-coil single-phase contactor according to claim 1, characterized in that: the center positions of the lower surfaces of the static iron cores and the upper surfaces of the movable iron cores of the main electromagnetic mechanism and the additional safety electromagnetic mechanism are respectively provided with a groove in a concave mode, the two grooves form a cavity for placing a closing spring, and the closing spring is a rectangular spring and is supported in the cavity in a compressed state.
3. The novel dual-drive double-coil single-phase contactor according to claim 1, characterized in that: the permanent magnets of the main electromagnetic mechanism and the additional safety electromagnetic mechanism can adopt coils to generate magnetic fields instead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219383.7A CN111415838A (en) | 2020-03-25 | 2020-03-25 | Novel dual-drive double-coil single-phase contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219383.7A CN111415838A (en) | 2020-03-25 | 2020-03-25 | Novel dual-drive double-coil single-phase contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111415838A true CN111415838A (en) | 2020-07-14 |
Family
ID=71493277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010219383.7A Withdrawn CN111415838A (en) | 2020-03-25 | 2020-03-25 | Novel dual-drive double-coil single-phase contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111415838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220716A (en) * | 2021-12-31 | 2022-03-22 | 江苏省如高高压电器有限公司 | Electromagnetic mechanism for direct current air circuit breaker |
| CN116779384A (en) * | 2022-11-22 | 2023-09-19 | 嘉润电气科技有限公司 | Novel double-drive single-phase contactor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202339881U (en) * | 2011-11-21 | 2012-07-18 | 无锡市蓝虹电子有限公司 | Fast horizontal type vacuum switch for flexible power transmission |
| EP2711965A1 (en) * | 2011-05-19 | 2014-03-26 | Fuji Electric Co., Ltd. | Electromagnetic contactor |
| CN104681356A (en) * | 2013-11-26 | 2015-06-03 | 昆山瑞普电气有限公司 | Single-phase permanent magnetic contactor |
| CN109192616A (en) * | 2018-09-21 | 2019-01-11 | 嘉润电气科技有限公司 | A kind of single-phase contactor of novel double drive |
| CN209785845U (en) * | 2019-06-03 | 2019-12-13 | 昆山瑞普电气有限公司 | Double-drive quick switch |
| CN209804562U (en) * | 2019-07-06 | 2019-12-17 | 嘉润电气科技有限公司 | Gas-electric hybrid double-drive contactor |
-
2020
- 2020-03-25 CN CN202010219383.7A patent/CN111415838A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2711965A1 (en) * | 2011-05-19 | 2014-03-26 | Fuji Electric Co., Ltd. | Electromagnetic contactor |
| CN202339881U (en) * | 2011-11-21 | 2012-07-18 | 无锡市蓝虹电子有限公司 | Fast horizontal type vacuum switch for flexible power transmission |
| CN104681356A (en) * | 2013-11-26 | 2015-06-03 | 昆山瑞普电气有限公司 | Single-phase permanent magnetic contactor |
| CN109192616A (en) * | 2018-09-21 | 2019-01-11 | 嘉润电气科技有限公司 | A kind of single-phase contactor of novel double drive |
| CN209785845U (en) * | 2019-06-03 | 2019-12-13 | 昆山瑞普电气有限公司 | Double-drive quick switch |
| CN209804562U (en) * | 2019-07-06 | 2019-12-17 | 嘉润电气科技有限公司 | Gas-electric hybrid double-drive contactor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220716A (en) * | 2021-12-31 | 2022-03-22 | 江苏省如高高压电器有限公司 | Electromagnetic mechanism for direct current air circuit breaker |
| CN116779384A (en) * | 2022-11-22 | 2023-09-19 | 嘉润电气科技有限公司 | Novel double-drive single-phase contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2540114C2 (en) | Electromagnetic drive with two steady states for medium voltage automatic switch | |
| US9208966B2 (en) | Switch | |
| CN102280304B (en) | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same | |
| CN111415838A (en) | Novel dual-drive double-coil single-phase contactor | |
| CN107946133B (en) | Quick separating brake mechanism and hybrid alternating current circuit breaker | |
| CN101789318B (en) | Novel bistable permanent magnetic actuator capable of increasing instantaneous opening speed | |
| CN105070586A (en) | Long-stroke high-voltage monostable permanent magnet operating mechanism with external disc spring | |
| CN113675048A (en) | Permanent magnet and spring bidirectional retaining mechanism | |
| CN103578877B (en) | Ultrahigh speed mechanical switch | |
| CN209804562U (en) | Gas-electric hybrid double-drive contactor | |
| CN116631806A (en) | Deep fusion magnetic control type column vacuum circuit breaker | |
| CN200986886Y (en) | Permanent magnet control mechanism vacuum circuit breaker | |
| CN218631798U (en) | Switch of direct current breaker and direct current breaker | |
| CN110473723B (en) | Dual power supply switching mechanism and switch equipment with same | |
| CN202094043U (en) | Moving contact assembly and electromagnetic isolation driving intelligent switch using same | |
| CN105719895A (en) | Vacuum arc-extinguishing chamber of novel double-acting mechanism | |
| CN210200590U (en) | Dual-power switching mechanism and switch equipment with same | |
| CN212587423U (en) | Auxiliary contact mechanism of ceramic sealing high-voltage direct-current contactor | |
| CN107123567B (en) | A kind of bilateral of vacuum circuit breaker cut-offs technology | |
| CN2640026Y (en) | Permanent magnet solenoid actuating mechanism of electronic overload relay | |
| CN205122408U (en) | High voltage circuit breaker moves winding formula and becomes air gap permanent magnetism linear electric motor operating mechanism | |
| CN218730638U (en) | Coaxial single-pole vacuum contactor and multi-pole vacuum contactor | |
| CN219350123U (en) | Mechanical holding device for magnetic control mechanism | |
| CN206711786U (en) | Permanent magnet mechanism all insulation breaker cabinet | |
| CN207966842U (en) | A kind of substation station monostable permanent-magnet breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200714 |
|
| WW01 | Invention patent application withdrawn after publication |