CN112331521A - Asymmetric cross-section composite electromagnetic repulsion mechanism - Google Patents
Asymmetric cross-section composite electromagnetic repulsion mechanism Download PDFInfo
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- CN112331521A CN112331521A CN202011208515.2A CN202011208515A CN112331521A CN 112331521 A CN112331521 A CN 112331521A CN 202011208515 A CN202011208515 A CN 202011208515A CN 112331521 A CN112331521 A CN 112331521A
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- 239000002131 composite material Substances 0.000 title claims abstract description 93
- 230000007246 mechanism Effects 0.000 title claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 32
- 229910052782 aluminium Inorganic materials 0.000 claims description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 29
- 229910052802 copper Inorganic materials 0.000 claims description 29
- 239000010949 copper Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention belongs to the field of electromagnetic repulsion mechanisms, and discloses an asymmetric cross-section composite electromagnetic repulsion mechanism, which comprises an electromagnetic repulsion unit, wherein the electromagnetic repulsion unit comprises: the device comprises a transmission rod, a fixed opening repulsion coil, a fixed closing repulsion coil and an asymmetric section composite repulsion plate; the composite repulsion plate with the asymmetric cross section is fixedly connected with a transmission rod, and the upper end of the transmission rod is fixedly connected with a moving contact of the vacuum arc-extinguishing chamber; the asymmetric section composite repulsion plate drives the transmission rod to move under the driving of the fixed opening repulsion coil or the fixed closing repulsion coil, and the transmission rod drives the moving contact of the arc extinguish chamber to perform opening or closing operation. The asymmetric electromagnetic repulsion mechanism with high requirement on opening speed can meet the requirements of high opening speed, low closing speed, high strength and light weight, so that the driving efficiency of the electromagnetic repulsion mechanism is improved, and the service life of the repulsion mechanism can be prolonged to a certain extent.
Description
Technical Field
The invention belongs to the field of electromagnetic repulsion mechanisms, and particularly relates to an asymmetric cross-section composite electromagnetic repulsion mechanism.
Background
With the rapid development of the dc power grid, as an important switching device in the power system, the application demand of the dc circuit breaker is gradually increased, and the research and design on the dc circuit breaker need to comprehensively consider the fast on-off performance, the reliability in stable operation, and the economic efficiency. At present, the main types of the direct current circuit breakers include a hybrid direct current circuit breaker and a mechanical direct current circuit breaker, a mechanical switch is one of important components of the two direct current circuit breakers, the action speed of the mechanical switch directly influences the switching-on and switching-off performance of the direct current circuit breaker, and as an action unit of the mechanical switch, the performance optimization research of an operating mechanism becomes a hotspot.
The traditional operating mechanism has the defects of large quantity of parts, multiple action links and large accumulated motion tolerance, so that the response time dispersion is large, the opening and closing time is long, and the fault is easily caused by the influence of respective characteristics. In order to improve the quick action capability of a mechanical switch operating mechanism, a novel operating mechanism which utilizes an electromagnetic repulsion principle to drive the mechanism to act is developed, namely the electromagnetic repulsion operating mechanism has the advantages of simple mechanical structure, short mechanical time delay, high action speed and the like, but also has the defect of low efficiency, and the early electromagnetic repulsion mechanism cannot meet the requirements of high conductivity, high strength and light weight at the same time, so that the electromagnetic repulsion mechanism which meets the multiple requirements needs to be invented.
Disclosure of Invention
In view of the above defects or improvement requirements of the prior art, the present invention aims to provide an asymmetric cross-section composite electromagnetic repulsion mechanism, which aims to solve the problem that the prior art cannot simultaneously meet the requirements of high conductivity, high strength and light weight.
In order to achieve the purpose, the invention provides an asymmetric cross section composite electromagnetic repulsion mechanism, which comprises an electromagnetic repulsion unit; the electromagnetic repulsion unit includes: the device comprises a transmission rod, a fixed opening repulsion coil, a fixed closing repulsion coil and an asymmetric section composite repulsion plate; the composite repulsion plate with the asymmetric cross section is fixedly connected with a transmission rod, and the upper end of the transmission rod is fixedly connected with a moving contact of the vacuum arc-extinguishing chamber; the asymmetric section composite repulsion plate drives the transmission rod to move under the driving of the fixed opening repulsion coil or the fixed closing repulsion coil, and the transmission rod drives the moving contact of the arc extinguish chamber to perform opening or closing operation.
The asymmetric electromagnetic repulsion mechanism with high requirement on opening speed can meet the requirements of high opening speed, low closing speed, high strength and light weight, so that the driving efficiency of the electromagnetic repulsion mechanism is improved, and the service life of the repulsion mechanism can be prolonged to a certain extent.
Further, the asymmetric-section composite repulsive disc includes: the first output unit is used as a main output unit during opening operation of the electromagnetic repulsion mechanism and is used for improving the driving efficiency of the electromagnetic repulsion; the second output unit is used as a main output unit during closing operation of the electromagnetic repulsion mechanism and is used for reducing vibration deformation during opening and closing of the mechanism; the supporting structure is used for supporting the first output unit.
Further preferably, the first output unit is a copper plate, the second output unit is an aluminum plate, and the support structure is a reinforcing rib.
Furthermore, the copper disc is arranged on one side close to the fixed opening repulsion coil, and the aluminum disc is arranged on one side close to the fixed closing repulsion coil.
The material of the copper disc can be copper or silver.
Wherein, the aluminum plate and the reinforcing rib are integrally processed and formed, so that the mechanical strength of the operating mechanism can be ensured.
Further preferably, the material of both the aluminum disc and the reinforcing ribs may be a super hard aluminum alloy.
Furthermore, the number of the reinforcing ribs is multiple, and the reinforcing ribs can be arranged according to the strength requirement of the repulsion mechanism.
The electromagnetic repulsion force generated between the repulsion plate and the coil is the largest when the sizes of the repulsion plate and the coil are consistent, and the driving efficiency of the electromagnetic repulsion mechanism obtains a relative optimal value, so that the outer diameter of the copper plate of the repulsion plate with the asymmetric cross section is the same as that of the fixed opening repulsion coil; the outer diameter of the aluminum disc of the repulsion disc with the asymmetric cross section is the same as that of the fixed closing repulsion coil; the inner diameter of the repulsion plate with the asymmetric section is the same as the inner diameters of the fixed opening repulsion coil and the fixed closing repulsion coil.
Further, the aluminum disk and the reinforcing rib may be connected by a countersunk rivet, a countersunk screw, or welding. The countersunk head rivet is simple in structure, but cannot be detached, the countersunk head screw is convenient to adjust, but the strength is not high, the welding connection strength is higher, and the processing difficulty and the cost are highest.
The electromagnetic repulsion mechanism combines the design of composite and asymmetric sections of two materials and the use of reinforcing ribs, so that the electromagnetic repulsion mechanism has the requirements of high conductivity, high mechanical strength and light weight. The opening side of the asymmetric section composite repulsion plate adopts a high-conductivity material, such as copper, as a main output unit during opening operation of the electromagnetic repulsion mechanism, and the induced eddy current and the electromagnetic repulsion during opening are increased, so that the driving efficiency of the electromagnetic repulsion is improved; the closing side of the composite repulsion plate with the asymmetric cross section adopts high-strength materials such as superhard aluminum alloy as a main force unit during closing operation of the electromagnetic repulsion mechanism, and simultaneously, the composite repulsion plate is matched with the reinforcing rib as a supporting unit during mechanism operation, so that vibration deformation during opening and closing of the mechanism is reduced, and the action reliability is improved. The opening side and the closing side of the composite repulsion plate with the asymmetric cross section adopt different size specifications, and the use of reinforcing ribs is combined, so that the optimization target of smaller quality and higher driving efficiency is achieved on the premise of ensuring that the repulsion plate has certain structural strength.
Drawings
Fig. 1 is a schematic diagram of an asymmetric cross-section composite electromagnetic repulsion mechanism in a closing position according to an embodiment of the present invention;
fig. 2 is a schematic view of an asymmetric cross-section composite repulsive disc provided in an embodiment of the present invention;
in the figure, 1 is a transmission rod; 2 is a fixed opening repulsion coil, 3 is an asymmetric section composite repulsion plate copper plate, 4 is an asymmetric section composite repulsion plate aluminum plate, 5 is an asymmetric section composite repulsion plate reinforcing rib, and 6 is a fixed closing repulsion coil.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides an asymmetric cross section composite electromagnetic repulsion mechanism, an electromagnetic repulsion unit of the mechanism mainly comprises: the device comprises a transmission rod, a fixed opening repulsion coil, a fixed closing repulsion coil and an asymmetric section composite repulsion plate. The composite repulsion plate with asymmetric cross section consists of copper plate, aluminum plate and reinforcing ribs. The asymmetric section composite repulsion plate copper plate is arranged at one side close to the fixed opening repulsion coil, namely above the asymmetric section composite repulsion plate aluminum plate and the reinforcing rib; the asymmetric section composite repulsion plate aluminum plate is arranged on one side close to the fixed closing repulsion coil. The composite repulsion plate with the asymmetric cross section is fixedly connected with a transmission rod, and the upper end of the transmission rod is fixedly connected with a moving contact of the vacuum arc-extinguishing chamber; the asymmetric section composite repulsion plate drives the transmission rod to move under the driving of the fixed opening repulsion coil or the fixed closing repulsion coil, and the transmission rod drives the moving contact of the arc extinguish chamber to perform opening or closing operation.
As an embodiment of the present invention, the material of the asymmetric cross-section composite repulsive disc copper disc may be copper or silver; the composite repulsion plate aluminum plate and the reinforcing rib can be made of superhard aluminum alloy;
as an embodiment of the invention, the reinforcing rib of the asymmetric section composite repulsion disc plays a supporting role for the asymmetric section composite repulsion disc copper disc; the aluminum plate and the reinforcing ribs of the asymmetric section composite repulsion plate are integrally processed by a superhard aluminum alloy material so as to ensure the mechanical strength of the operating mechanism; the number of the reinforcing ribs of the composite repulsion plate with the asymmetric cross section is a plurality, and the specific use can be adjusted according to the strength requirement of an actual repulsion mechanism.
In the embodiment of the invention, as the electromagnetic repulsion force generated between the repulsion plate and the coil is the largest when the sizes of the repulsion plate and the coil are consistent, the driving efficiency of the electromagnetic repulsion mechanism obtains a relative optimal value, the outer diameter of the copper plate of the repulsion plate with the asymmetric cross section is the same as that of the coil of the repulsion coil of the fixed opening; the outer diameter of the aluminum disc of the repulsion disc with the asymmetric cross section is the same as that of the fixed closing repulsion coil; the inner diameter of the repulsion plate with the asymmetric section is the same as the inner diameters of the fixed opening repulsion coil and the fixed closing repulsion coil.
In the embodiment of the invention, the asymmetric section composite repulsion plate copper plate and the asymmetric section composite repulsion plate aluminum plate are connected with the reinforcing rib through a countersunk rivet, a countersunk screw or welding; the countersunk head rivet is simple in structure, but cannot be detached, the countersunk head screw is convenient to adjust, but the strength is not high, the welding connection strength is higher, and the processing difficulty and the cost are highest.
To further illustrate the asymmetric cross-section composite electromagnetic repulsion mechanism provided by the embodiments of the present invention, the following detailed description is provided with reference to the accompanying drawings and specific examples:
fig. 1 shows a schematic diagram of an asymmetric cross-section composite electromagnetic repulsion mechanism in a closing position provided by an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, which are detailed as follows:
the electromagnetic repulsion unit of the asymmetric section composite electromagnetic repulsion mechanism mainly comprises: the device comprises a transmission rod 1, a fixed opening repulsion coil 2, an asymmetric section composite repulsion plate copper plate 3, an asymmetric section composite repulsion plate aluminum plate 4, an asymmetric section composite repulsion plate reinforcing rib 5 and a fixed closing repulsion coil 6. The asymmetric section composite repulsion plate copper plate 3 is arranged at one side close to the fixed opening repulsion coil 2, namely above the asymmetric section composite repulsion plate aluminum plate 4 and the reinforcing rib 5; the asymmetric section composite repulsion plate aluminum plate 4 is arranged at one side close to the fixed closing repulsion coil 6. The asymmetric section composite repulsion plate (comprising an asymmetric section composite repulsion plate copper plate 3, an asymmetric section composite repulsion plate aluminum plate 4 and an asymmetric section composite repulsion plate reinforcing rib 5) is fixedly connected with the transmission rod 1, and the upper end of the transmission rod 1 is fixedly connected with a moving contact of the vacuum arc-extinguishing chamber; the composite repulsion plate with the asymmetric cross section is driven by the fixed opening repulsion coil 2 or the fixed closing repulsion coil 6 to drive the transmission rod 1 to move, and the transmission rod 1 drives the moving contact of the arc extinguish chamber to perform opening or closing operation.
When the electromagnetic repulsion mechanism carries out opening operation, a pre-charging capacitor bank in the driving circuit discharges electricity to the fixed opening repulsion coil 2, coil current generates a high-frequency magnetic field in space, according to the electromagnetic induction principle, the axial component of the magnetic field generates induced electromotive force in the composite repulsion plate with the asymmetric cross section, the radial component of the magnetic field generated by the coil current is opposite to the magnetic field generated by induced eddy current in the composite repulsion plate with the asymmetric cross section, the radial component and the induced eddy current generate electromagnetic repulsion force through interaction, and therefore the repulsion plate is pushed to drive the transmission rod 1 to move downwards. Due to the skin effect, the induced eddy current is concentrated in the skin depth of the opening side of the asymmetric composite repulsive disc, namely in the asymmetric cross section composite repulsive disc copper disc 3 of the invention. Because the conductivity of the copper material is high, the induced eddy current generated by the induced electromotive force with the same size is increased, so that the generated electromagnetic repulsion force is increased, more magnetic field energy is converted into the kinetic energy of the composite repulsion plate with the asymmetric cross section, and the driving efficiency of the electromagnetic repulsion mechanism is improved.
The fixed opening repulsion coil 2 adopts a coil with higher driving efficiency. Two coil shape proportion parameters are defined to represent the driving efficiency of the repulsive coil, and alpha is the ratio of the height of the coil to the average diameter of the coil; beta is the ratio of the radial thickness of the coil to the average diameter of the coil. Simulation and experimental verification prove that the smaller the appearance proportion coefficient alpha of the coil, the larger beta of the coil, and the higher the driving efficiency of the repulsion mechanism. Therefore, the fixed opening repulsion coil 2 is selected to have the coil specification that the shape proportion parameter alpha is as small as possible and the beta is as large as possible under the condition of meeting the working condition. For maximizing the driving efficiency, the outer diameter of the copper plate 3 of the asymmetric section composite repulsive force plate is consistent with that of the fixed opening repulsive force coil 2.
When the electromagnetic repulsion mechanism carries out closing operation, a pre-charging capacitor bank in the driving circuit discharges electricity to the fixed closing repulsion coil 6, coil current generates a high-frequency magnetic field in space, according to the electromagnetic induction principle, the axial component of the magnetic field generates induced electromotive force in the composite repulsion plate with the asymmetric cross section, the radial component of the magnetic field generated by the coil current is opposite to the magnetic field generated by induced eddy current in the composite repulsion plate with the asymmetric cross section, the radial component and the induced eddy current generate electromagnetic repulsion force through interaction, and therefore the repulsion plate is pushed to drive the transmission rod 1 to move upwards. Due to the skin effect, the induced eddy current is mainly concentrated in the skin depth of the closing side of the asymmetric composite repulsive disc, namely in the asymmetric cross-section composite repulsive disc aluminum disc 4 of the invention. Because the requirement of a common electromagnetic repulsion mechanism on the closing speed is not high, on the premise of meeting the closing requirement, the superhard aluminum alloy with higher strength is selected as the material of the asymmetric section composite repulsion disc aluminum disc 4, so that the structural strength of the asymmetric section composite repulsion disc is improved.
The dimension specification of the asymmetric section composite repulsion plate aluminum plate 4 is smaller than that of the asymmetric section composite repulsion plate copper plate 3. The size of the aluminum disc 4 of the composite repulsion disc with the asymmetric section is reduced, the purpose is to reliably complete normal closing at a relatively low speed, the collision between the composite repulsion disc with the asymmetric section and the fixed opening repulsion coil 2 is reduced, and the service life of the repulsion mechanism is further prolonged. Meanwhile, the weight of the repulsion plate can be reduced to a certain extent, so that the load in the opening and closing process of the mechanism is reduced, and the driving efficiency of the electromagnetic repulsion mechanism is improved. In addition, in order to maximize the driving efficiency under this condition, the outer diameter of the asymmetric cross-section composite repulsive disc aluminum disc 4 is kept consistent with that of the fixed closing repulsive coil 6.
The asymmetric section composite repulsion disc copper disc 3 is made of softer material, has lower mechanical strength and has larger size than the asymmetric section composite repulsion disc aluminum disc 4, so the asymmetric section composite repulsion disc reinforcing rib 5 is adopted to support the asymmetric section composite repulsion disc copper disc 3. The asymmetric section composite repulsion plate aluminum plate 4 and the reinforcing rib 5 are integrally processed by a superhard aluminum alloy material so as to ensure the mechanical strength of the asymmetric section composite repulsion plate; the asymmetric section composite repulsion plate copper plate 3 is connected with the asymmetric section composite repulsion plate aluminum plate 4 and the reinforcing rib 5 through a countersunk rivet, a countersunk screw or welding; the number of the reinforcing ribs 5 of the asymmetric cross section composite repulsive force disc can be, but is not limited to, the number provided in the embodiment of the invention, and the specific use can be adjusted according to the strength requirement of the actual repulsive force mechanism.
Above-mentioned optimization to electromagnetic repulsion dish structure compares the repulsion dish of single material and the combined type repulsion dish of cross-section symmetry, has further reduced the quality of repulsion dish, can guarantee under its prerequisite that possesses certain structural strength, effectively improve electromagnetic repulsion mechanism's drive efficiency.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A composite electromagnetic repulsion mechanism with an asymmetric cross section comprises an electromagnetic repulsion unit; characterized in that the electromagnetic repulsion unit comprises: the device comprises a transmission rod, a fixed opening repulsion coil, a fixed closing repulsion coil and an asymmetric section composite repulsion plate;
the composite repulsion plate with the asymmetric cross section is fixedly connected with the transmission rod, and the upper end of the transmission rod is fixedly connected with a moving contact of the vacuum arc-extinguishing chamber; the asymmetric section composite repulsion plate drives the transmission rod to move under the driving of the fixed opening repulsion coil or the fixed closing repulsion coil, and the transmission rod drives the moving contact of the vacuum arc extinguish chamber to perform opening or closing operation.
2. The asymmetric-section composite electromagnetic repulsion mechanism according to claim 1, characterized in that said asymmetric-section composite repulsion disk comprises: the first output unit is used as a main output unit during opening operation of the electromagnetic repulsion mechanism and is used for improving the driving efficiency of the electromagnetic repulsion; the second output unit is used as a main output unit during closing operation of the electromagnetic repulsion mechanism and is used for reducing vibration deformation during opening and closing of the mechanism; the support structure is used for supporting the first force output unit.
3. The asymmetric-section composite electromagnetic repulsion mechanism according to claim 2, characterized in that said first force output unit is a copper disk, said second force output unit is an aluminum disk, and said supporting structure is a reinforcing rib.
4. The asymmetric cross-section composite electromagnetic repulsion mechanism as claimed in claim 3, characterized in that said copper plate is disposed on the side close to said fixed opening repulsion coil, and said aluminum plate is disposed on the side close to said fixed closing repulsion coil.
5. An asymmetric cross-section composite electromagnetic repulsion mechanism as claimed in claim 3 or 4, characterized in that the material of said copper disk is copper or silver.
6. An asymmetric cross-section composite electromagnetic repulsion mechanism as claimed in any of claims 3-5, characterized in that said aluminum disk and said reinforcing rib are integrally formed.
7. An asymmetric-section composite electromagnetic repulsion mechanism according to claim 6, characterized in that the materials of said aluminum disk and said reinforcing ribs are all superhard aluminum alloy.
8. An asymmetric cross-section composite electromagnetic repulsion mechanism according to any of the claims 3-7, characterized in that the number of the reinforcing ribs is plural, and the reinforcing ribs are arranged according to the strength requirement of the repulsion mechanism.
9. The asymmetric cross-section composite electromagnetic repulsion mechanism according to any of the claims 3 to 7, characterized in that the outer diameter of the copper disc is the same as the outer diameter of the fixed opening repulsion coil, and the outer diameter of the aluminum disc is the same as the outer diameter of the fixed closing repulsion coil; the inner diameter of the repulsion plate with the asymmetric cross section is the same as the inner diameters of the fixed opening repulsion coil and the fixed closing repulsion coil.
10. An asymmetric cross-section composite electromagnetic repulsion mechanism as claimed in any of claims 3-7, characterized in that, said aluminum disk and said reinforcing rib are connected by means of countersunk rivet, countersunk screw or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011208515.2A CN112331521A (en) | 2020-11-03 | 2020-11-03 | Asymmetric cross-section composite electromagnetic repulsion mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011208515.2A CN112331521A (en) | 2020-11-03 | 2020-11-03 | Asymmetric cross-section composite electromagnetic repulsion mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044403A1 (en) * | 2000-10-16 | 2002-04-18 | Toshie Takeuchi | Switching apparatus |
| CN201156495Y (en) * | 2008-01-28 | 2008-11-26 | 中国电力科学研究院 | Operation mechanism in circuit cutter |
| CN104124110A (en) * | 2014-07-17 | 2014-10-29 | 华中科技大学 | Non-symmetric repulsion mechanism |
| CN207038414U (en) * | 2017-06-08 | 2018-02-23 | 山东泰开高压开关有限公司 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
| CN108447726A (en) * | 2018-05-21 | 2018-08-24 | 华中科技大学 | A kind of electromagnetic repulsion mechanism based on asymmetric compound formula repulsion dish |
-
2020
- 2020-11-03 CN CN202011208515.2A patent/CN112331521A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020044403A1 (en) * | 2000-10-16 | 2002-04-18 | Toshie Takeuchi | Switching apparatus |
| CN201156495Y (en) * | 2008-01-28 | 2008-11-26 | 中国电力科学研究院 | Operation mechanism in circuit cutter |
| CN104124110A (en) * | 2014-07-17 | 2014-10-29 | 华中科技大学 | Non-symmetric repulsion mechanism |
| CN207038414U (en) * | 2017-06-08 | 2018-02-23 | 山东泰开高压开关有限公司 | A kind of Quick mechanical formula switch and the high-voltage electric power system switched using the Quick mechanical formula |
| CN108447726A (en) * | 2018-05-21 | 2018-08-24 | 华中科技大学 | A kind of electromagnetic repulsion mechanism based on asymmetric compound formula repulsion dish |
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