CN212625451U - Anti-interference permanent magnet release - Google Patents
Anti-interference permanent magnet release Download PDFInfo
- Publication number
- CN212625451U CN212625451U CN202021868156.9U CN202021868156U CN212625451U CN 212625451 U CN212625451 U CN 212625451U CN 202021868156 U CN202021868156 U CN 202021868156U CN 212625451 U CN212625451 U CN 212625451U
- Authority
- CN
- China
- Prior art keywords
- iron core
- magnetic
- assembly
- permanent magnet
- coil
- 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.)
- Active
Links
Images
Landscapes
- Electromagnets (AREA)
Abstract
The utility model discloses an anti-interference permanent magnet release. The anti-interference permanent magnet release is provided with a magnetism increasing sleeve, a release assembly is arranged in the magnetism increasing sleeve, the release assembly comprises a magnetic yoke, a magnetism isolating plate is fixedly arranged at the top end of the magnetic yoke, an iron core assembly is arranged in the center of an inner cavity of the magnetic yoke, the iron core assembly comprises a movable iron core and a static iron core which are arranged up and down, the static iron core is fixedly arranged in the center of the bottom end of the magnetic yoke, and the movable iron core extends out of the magnetism; a limiting plate is arranged at the position of the movable iron core, which is exposed out of the magnetic isolation plate, a spring is arranged between the limiting plate and the magnetic isolation plate, and the spring is sleeved on the movable iron core. The utility model has simple structure, when surge voltage is generated in the circuit, the magnetic isolation plate can effectively shield an interference source, prevent error tripping and improve reliability; the magnetic enhancement sleeve is arranged for use in a very strong magnetic field environment, has no interference, has stable and reliable performance, and avoids the phenomenon that the switch trips because the electromagnet malfunctions under higher surge voltage.
Description
Technical Field
The utility model belongs to the technical field of the release technique and specifically relates to an anti-interference permanent magnet release.
Background
The release is used for cooperating with the earth leakage protector, the vector sum of the current passing through the zero sequence current mutual inductor is not equal to zero when the circuit has electric leakage or human body electric shock, two sides of the secondary coil of the mutual inductor generate voltage, the voltage is amplified by the integrated circuit, and when the set value is reached, the power supply is cut off in 0.1 second by the earth leakage release, so that the electric shock and the electric leakage protection are realized. The surge is also called a surge, which is an instantaneous overvoltage exceeding a normal voltage, generally refers to a large current caused by a high voltage which appears in a power grid in a short time like a 'wave', and can cause misoperation of electronic equipment; damage to power supply equipment and expensive computers and various hardware equipment causes direct economic loss. The existing tripping device mostly adopts a high-voltage electromagnet, and the misoperation of the electromagnet is easy to occur under higher surge voltage, so that the switch trips.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides an anti-interference permanent magnet release.
The utility model provides a technical scheme that its technical problem adopted is: an anti-interference permanent magnet release is provided with a magnetism increasing sleeve, a release assembly is arranged in the magnetism increasing sleeve, the release assembly comprises a magnetic yoke, a magnetism isolating plate is fixedly arranged at the top end of the magnetic yoke, an iron core assembly is arranged in the center of an inner cavity of the magnetic yoke, the iron core assembly comprises a movable iron core and a static iron core which are arranged up and down, the static iron core is fixedly arranged in the center of the bottom end of the magnetic yoke, and the movable iron core extends out of the magnetism; a limiting plate is arranged at the position of the movable iron core, which is exposed out of the magnetic isolation plate, a spring is arranged between the limiting plate and the magnetic isolation plate, and the spring is sleeved on the movable iron core;
the coil assembly is sleeved outside the iron core assembly and connected with a wire harness assembly which sequentially extends out of the magnet yoke and the magnetizing sleeve, and magnetic steel made of a permanent magnet material is arranged at the top end of the coil assembly;
the outer wall of the magnetism increasing sleeve is provided with a fixing component which fixes the tripping component and the magnetism increasing sleeve into a whole.
The magnetizing sleeve is used in a very strong magnetic field environment, has no interference and has stable and reliable performance; the magnetic isolation plate has strong anti-electronic interference characteristic and can effectively shield an external interference source.
Further, coil pack establishes the coil skeleton outside the iron core subassembly including the cover, and the winding has the enameled wire circle on the coil skeleton, and the outer parcel of enameled wire circle has the sticky tape, and the magnet steel sets up in coil skeleton top.
Furthermore, the number of the magnetic steels is two, and the two magnetic steels are arranged oppositely to enable the directions of the magnetic fields to be consistent.
Further, fixed subassembly includes gasket, screw and bullet pad, and the screw passes gasket, bullet pad and increases magnetism cover outer wall back and yoke threaded connection in proper order.
Further, wire harness assembly includes first lead wire and second lead wire, and the one end of first lead wire and second lead wire all is connected with the enameled coil, and the draw-in groove of plastic terminal is all gone into to the other end of first lead wire and second lead wire.
Furthermore, the first lead and the second lead are clamped into one end of the plastic terminal clamping groove and are formed by metal terminal prepressing.
Furthermore, the number of the enameled coils is 120 turns, and the wire diameter of the enameled wire is 0.4 mm.
The utility model has the advantages that: the utility model has simple structure and convenient operation, and under the normal condition, the movable iron core is kept in the suction with the static iron core under the suction effect of the magnetic steel; when current flows through the coil assembly, alternating magnetic flux phi is generated, the direction of phi with a half cycle is opposite to the direction of direct current magnetic flux, the attraction of the magnetic steel is partially offset, and when the exciting current is large enough, the movable iron core is released under the action of the spring to drive the mechanism to act; when surge voltage is generated in the circuit, the magnetic isolation plate can effectively shield an interference source, prevent false tripping and improve reliability; the magnetic enhancement sleeve is arranged for use in a very strong magnetic field environment, has no interference, has stable and reliable performance, and avoids the phenomenon that the switch trips because the electromagnet malfunctions under higher surge voltage.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. the magnetic shield comprises a magnetizing sleeve, a magnetic yoke, a magnetic isolation plate, a movable iron core, a static iron core, a magnetic steel, a coil assembly, a wire harness assembly, a gasket, a screw, an elastic pad, a spring, a coil skeleton, an adhesive tape, a first lead, a second lead, a plastic terminal and a metal terminal, wherein the magnetizing sleeve comprises 2 parts of a magnetic yoke, 3 parts of a magnetic isolation plate, 4 parts of a movable iron core, 5 parts of a static iron core, 6 parts of a magnetic steel, 7 parts of a coil assembly, 8 parts of a wire harness assembly, 9 parts of a gasket, 10 parts of a screw, 11 parts of an elastic pad.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The anti-interference permanent magnet release shown in fig. 1 is provided with a magnetism increasing sleeve 1, a release assembly is arranged in the magnetism increasing sleeve 1 and comprises a magnetic yoke 2, a magnetism isolating plate 3 is arranged at the top end of the magnetic yoke 2 through an integrated riveting process, an iron core assembly is arranged at the center of an inner cavity of the magnetic yoke 2 and comprises a movable iron core 4 and a static iron core 5 which are arranged up and down, the static iron core 5 is riveted at the center of the bottom end of the magnetic yoke 2, and the movable iron core 4 extends out of the magnetism isolating plate 3; a position of the movable iron core 4, which is exposed out of the magnetic shield plate 3, is provided with a limiting plate, a spring 12 is arranged between the limiting plate and the magnetic shield plate 3, and the spring 12 is sleeved on the movable iron core 4;
a coil assembly 7 is sleeved outside the iron core assembly, the coil assembly 7 is connected with a wire harness assembly 8 which successively extends out of the magnet yoke 2 and the magnetism increasing sleeve 1, and a magnetic steel 6 made of a permanent magnet material is arranged at the top end of the coil assembly 7;
the outer wall of the magnetism increasing sleeve 1 is provided with a fixing assembly for fixing the tripping assembly and the magnetism increasing sleeve 1 into a whole, the fixing assembly comprises a gasket 9, a screw 10 and an elastic pad 11, and the screw 10 sequentially penetrates through the gasket 9, the elastic pad 11 and the outer wall of the magnetism increasing sleeve 1 and then is in threaded connection with the magnet yoke 2.
The coil component 7 comprises a coil framework 7-2 sleeved outside the iron core component, an enameled coil 7-1 is wound on the coil framework 7-2, an adhesive tape 7-3 is wrapped outside the enameled coil 7-1, and a magnetic steel 6 is arranged at the top end of the coil framework 7-2; the number of bundles of the enameled coil 7-1 is 120 turns, and the wire diameter of the enameled wire is 0.4 mm. The adhesive tape 7-3 is a high temperature resistant adhesive tape.
The through-hole that is convenient for move iron core 4 and stretch out is seted up at magnetic shield 3 center, and magnet steel 6 quantity is two, and two magnet steel 6 set up relatively.
The wire harness assembly 8 comprises a first lead 8-1 and a second lead 8-2, one end of the first lead 8-1 and one end of the second lead 8-2 are both connected with the enameled coil 7-1, the other end of the first lead 8-1 and the other end of the second lead 8-2 are both formed by pre-pressing metal terminals 8-4, and the metal terminals 8-4 are clamped into clamping grooves of the plastic terminals 8-3.
Under normal conditions, the movable iron core 4 is kept in suction with the static iron core 5 under the suction effect of the magnetic steel 6; when current flows through the coil assembly 7, alternating magnetic flux phi is generated, the direction of phi with a half cycle is opposite to the direction of direct current magnetic flux, the attraction of the magnetic steel 6 is partially offset, and when the exciting current is large enough, the movable iron core 4 is released under the action of the spring 12 to drive the mechanism to act.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (7)
1. An anti-interference permanent magnet release which characterized in that: the magnetic field booster is provided with a magnetizing sleeve (1), a tripping assembly is arranged in the magnetizing sleeve (1), the tripping assembly comprises a magnetic yoke (2), a magnetic isolation plate (3) is fixedly arranged at the top end of the magnetic yoke (2), an iron core assembly is arranged at the center of an inner cavity of the magnetic yoke (2), the iron core assembly comprises a movable iron core (4) and a static iron core (5) which are arranged up and down, the static iron core (5) is fixedly arranged at the center of the bottom end of the magnetic yoke (2), and the movable iron core (4) extends out of the magnetic isolation plate (; a position of the movable iron core (4) exposed out of the magnetism isolating plate (3) is provided with a limiting plate, a spring (12) is arranged between the limiting plate and the magnetism isolating plate (3), and the spring (12) is sleeved on the movable iron core (4);
the coil assembly (7) is sleeved outside the iron core assembly, the coil assembly (7) is connected with a wire harness assembly (8) which sequentially extends out of the magnet yoke (2) and the magnetism increasing sleeve (1), and the top end of the coil assembly (7) is provided with magnetic steel (6) made of a permanent magnetic material;
the outer wall of the magnetism increasing sleeve (1) is provided with a fixing component which fixes the tripping component and the magnetism increasing sleeve (1) into a whole.
2. The tamper resistant permanent magnet trip unit of claim 1, wherein: the coil component (7) comprises a coil framework (7-2) sleeved outside the iron core component, an enameled coil (7-1) is wound on the coil framework (7-2), an adhesive tape (7-3) wraps the enameled coil (7-1), and magnetic steel (6) is arranged at the top end of the coil framework (7-2).
3. The tamper resistant permanent magnet trip unit of claim 1 or 2, wherein: the magnetic steel (6) is two in number, and the two magnetic steels (6) are arranged oppositely.
4. The tamper resistant permanent magnet trip unit of claim 1, wherein: the fixing assembly comprises a gasket (9), a screw (10) and an elastic pad (11), and the screw (10) sequentially penetrates through the gasket (9), the elastic pad (11) and the outer wall of the magnetism increasing sleeve (1) and then is in threaded connection with the magnet yoke (2).
5. The tamper resistant permanent magnet trip unit of claim 1, wherein: the wire harness assembly (8) comprises a first lead (8-1) and a second lead (8-2), one ends of the first lead (8-1) and the second lead (8-2) are connected with the enameled coil (7-1), and the other ends of the first lead (8-1) and the second lead (8-2) are clamped into clamping grooves of the plastic terminals (8-3).
6. The tamper resistant permanent magnet trip unit of claim 5, wherein: one end of the first lead (8-1) and one end of the second lead (8-2) clamped into the clamping groove of the plastic terminal (8-3) are both formed by prepressing metal terminals (8-4).
7. The tamper resistant permanent magnet trip unit of claim 5, wherein: the number of the enameled coils (7-1) is 120 turns, and the wire diameter of the enameled wire is 0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021868156.9U CN212625451U (en) | 2020-08-31 | 2020-08-31 | Anti-interference permanent magnet release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021868156.9U CN212625451U (en) | 2020-08-31 | 2020-08-31 | Anti-interference permanent magnet release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212625451U true CN212625451U (en) | 2021-02-26 |
Family
ID=74704906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021868156.9U Active CN212625451U (en) | 2020-08-31 | 2020-08-31 | Anti-interference permanent magnet release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212625451U (en) |
-
2020
- 2020-08-31 CN CN202021868156.9U patent/CN212625451U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212625451U (en) | Anti-interference permanent magnet release | |
| CN212625452U (en) | Permanent magnet release | |
| CN102347176A (en) | Working method of electromagnetic tripping device | |
| Chong et al. | A novel concept for a fault current limiter | |
| CN212230372U (en) | A-type electromagnetic leakage circuit breaker | |
| CN201229831Y (en) | Anti-resonance capacitor type voltage mutual transformer | |
| WO2014047558A1 (en) | Surge blocking inductor | |
| CN114171349A (en) | A-type electromagnetic leakage circuit breaker | |
| CN210272235U (en) | Energy storage type electromagnetic release | |
| CN213026025U (en) | Electromagnet for leakage protection tripping device | |
| CN210110482U (en) | Transformer device | |
| CN204834298U (en) | Electronic transformer with thin slice coil | |
| CN2153138Y (en) | Electromagnetic tripper | |
| CN108074784B (en) | Magnetic flow convertor | |
| CN102332684B (en) | Ferromagnetic resonance-preventing self-powered 2PT three-phase three-wire electronic transformer high-voltage electric energy metering cabinet or metering box | |
| CN212991017U (en) | Small electromagnetic leakage circuit breaker with time delay function | |
| CN220984321U (en) | Transformer assembly and electrical equipment | |
| CN202258767U (en) | Current transformer | |
| CN219436716U (en) | Power isolation electricity taking device | |
| CN110828127A (en) | High-frequency micro-electric protection mutual inductor | |
| CN212990833U (en) | Transformer structure with strong short circuit resistance | |
| CA2921520C (en) | Solenoid including a dual coil arrangement to control leakage flux | |
| CN212625148U (en) | Balance current transformer | |
| CN219226040U (en) | Small transformer | |
| CN219435020U (en) | Coil turn-to-turn short circuit detection table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |