CN113990683A - Electromagnetic repulsion force operating mechanism and electrical equipment - Google Patents
Electromagnetic repulsion force operating mechanism and electrical equipment Download PDFInfo
- Publication number
- CN113990683A CN113990683A CN202010734330.9A CN202010734330A CN113990683A CN 113990683 A CN113990683 A CN 113990683A CN 202010734330 A CN202010734330 A CN 202010734330A CN 113990683 A CN113990683 A CN 113990683A
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- pull rod
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims description 15
- 230000035699 permeability Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Electromagnets (AREA)
Abstract
The application discloses an electromagnetic repulsion force operating mechanism and electrical equipment, wherein the operating mechanism comprises a shell, and the shell comprises a first structural member and a second structural member; the driving unit comprises a switching-off coil, a switching-on coil, a repulsion disc and a movable pull rod; magnetic conduction unit, including separating brake coil panel, combined floodgate coil panel, magnetic conduction stick and move the pull rod, separating brake coil panel set up in first structure, combined floodgate coil panel set up in the second structure, move the pull rod with the repulsion dish is connected, the magnetic conduction stick set up in the central point of combined floodgate coil panel puts, the repulsion dish with move the mobilizable coaxial setting of pull rod in on the magnetic conduction stick. The operating mechanism is low in cost, small in size and capable of achieving quick on-off.
Description
Technical Field
The application relates to the field of quick switches, in particular to an electromagnetic repulsion force operating mechanism and electrical equipment.
Background
At present, an electromagnetic repulsion operating mechanism used by a traditional quick switch discharges electricity to a switching-on and switching-off coil through a large-capacity energy storage capacitor, and induces an eddy current with a larger amplitude in a metal repulsion plate by using an electromagnetic induction principle, so that an electromagnetic repulsion is generated between the repulsion plate and the switching-on and switching-off coil, and the quick switching-on and switching-off action of a mechanical switch is realized.
In the traditional electromagnetic repulsion mechanism based on the electromagnetic induction principle, air and non-magnetic conductive materials are mostly arranged between the opening and closing coil and the repulsion plate, the space leakage inductance is serious, the magnetic flux for electromagnetic induction is insufficient, the efficiency is low, the volume and the cost of a driving unit are high, and the application popularization and the popularization of a quick switch product are not facilitated. Although some researches propose that a magnetic conductive material is adopted to improve the efficiency, the magnetic conductive material is mostly arranged on the upper end surface, the lower end surface and the outer side of the opening and closing coil, a closed magnetic circuit cannot be formed, the magnetic resistance of the whole magnetic circuit is still large, and the electromagnetic induction efficiency is not obviously improved.
Therefore, developing an electromagnetic switch with low implementation cost, small volume and fast on/off becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
Based on this, this application provides an electromagnetic repulsion operating device and electrical equipment, and this operating device includes first structure, second structure, magnetic conduction unit and drive unit, can realize quick break-make, and is with low costs, and the reliability is high, is suitable for multiple electrical equipment.
This user characteristic and advantage of the present disclosure will become apparent from the detailed description below or may be learned in part by practice of the present disclosure.
According to the application, a current transformer power module with symmetrical structure is provided, which comprises:
a first structural member; a second structural member; the driving unit comprises a switching-off coil, a switching-on coil, a repulsion disc and a movable pull rod; the magnetic conduction unit comprises an opening coil panel, a closing coil panel, a magnetic conduction rod and the movable pull rod, the opening coil panel is arranged on the first structural component, the closing coil panel is arranged on the second structural component, the opening coil panel and the opening coil panel are coaxially arranged, the closing coil panel and the closing coil panel are coaxially arranged, the repulsion panel, the opening coil panel and the closing coil panel are coaxially arranged, the repulsion panel is arranged between the opening coil panel and the closing coil panel, the movable pull rod is connected with the repulsion panel, the magnetic conduction rod is arranged at the central position of the closing coil panel, the repulsion panel and the movable pull rod are movably and coaxially arranged on the magnetic conduction rod, the magnetic conduction rod penetrates through the repulsion panel to enter the movable pull rod, and the height of the upper end face of the magnetic conduction rod is not lower than that of the inner side of the opening coil panel, the magnetic conducting unit forms a magnetic yoke structure which is close to complete closing, and an air gap is reserved between the moving part and the static part of the moving and static magnetic conducting units.
According to some example embodiments, the opening coil disc has a first groove, the opening coil is disposed in the first groove, and an insulating material is poured between the opening coil and the opening coil disc.
According to some example embodiments, the closing coil disc has a second groove, the closing coil is disposed in the second groove, and an insulating material is poured between the closing coil and the closing coil disc.
According to some exemplary embodiments, the opening coil disc has a circular hole penetrating through a middle position, the repulsive disc is disposed coaxially with the movable pull rod, and the movable pull rod passes through the circular hole.
According to some example embodiments, the closing coil disc has a mounting hole at a middle position, and the magnetic conductive rod is disposed at the mounting hole.
According to some example embodiments, the opening coil disc and the closing coil disc are both of a high magnetic permeability material.
According to some example embodiments, the opening coil and the closing coil are both of a high electric conductivity material.
According to some example embodiments, the repulsive disc material is a high-conductivity non-magnetic conductive material.
According to some example embodiments, the magnetically permeable rod material is a high magnetic permeability material.
According to some example embodiments, the dynamic tie rod is a high strength, high permeability material.
According to some exemplary embodiments, the operating mechanism further comprises a buffer unit disposed on the magnetic conductive rod.
According to the present application, there is provided an electrical apparatus comprising the operating mechanism of any one of the above embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
Fig. 1 shows a schematic opening position diagram of an electromagnetic repulsion operation mechanism according to an exemplary embodiment of the present application.
Fig. 2 shows a schematic closing position diagram of an electromagnetic repulsion force operation mechanism according to an exemplary embodiment of the present application.
Fig. 3 shows a schematic view of an electromagnetic repulsion operation mechanism matching with a buffer mechanism according to an exemplary embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solution of the present application will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic view showing an opening position composition of an electromagnetic repulsion operation mechanism according to an exemplary embodiment of the present application.
Referring to fig. 1, the electromagnetic repulsion operation mechanism may include a structural member 100, and the structural member 100 includes a first structural member 110 and a second structural member 130. The operating mechanism further comprises a magnetic conducting unit 200, and the magnetic conducting unit 200 comprises an opening coil panel 210, a closing coil panel 230, a magnetic conducting rod 250 and a movable pull rod 370.
The operating mechanism further comprises a driving assembly 300, wherein the driving assembly 300 comprises a separating coil 310, a closing coil 330, a repulsive force disc 350 and a movable pull rod 370.
The opening coil panel 210 is disposed on the first structural member 110, the closing coil panel 230 is disposed on the second structural member 130, and the magnetic rod 250 is disposed at a central position of the closing coil panel 230.
The opening coil 310 and the opening coil panel 210 are coaxially arranged, the closing coil 330 and the closing coil panel 230 are coaxially arranged, the repulsive force panel 350, the opening coil panel 210 and the closing coil panel 230 are coaxially arranged, and the repulsive force panel 350 is arranged between the opening coil panel 210 and the closing coil panel 230.
The movable pull rod 370 is connected with the repulsive force disc 350, the repulsive force disc 350 and the movable pull rod 370 are coaxially arranged on the magnetic conducting rod 250 in a movable manner, and the middle of the movable pull rod 370 is provided with a through hole 371 matched with the magnetic conducting rod 250. The magnetic conductive rod 250 penetrates through the repulsive force disc 350 to enter the through hole 371 in the movable pull rod 370, and the height of the upper end face of the magnetic conductive rod 250 is not lower than that of the lower end face of the inner side of the opening coil disc 210.
The magnetic conductive unit 200 forms a nearly fully closed yoke structure, and in order to ensure reliable movement of the movable pull rod 370 and the repulsive disc 350 and to avoid saturation of the magnetic conductive material, an air gap is left between the moving and stationary parts of the magnetic conductive unit 200, both moving and stationary. In the present application, the air gap is left between the movable pull rod 370 and the inner side of the opening coil disk.
According to an example embodiment of the present application, one end of the opening coil panel 210 is connected to the first structural member 110, one end of the closing coil panel 230 is connected to the second structural member 130, the other end of the opening coil panel 210 is connected to the other end of the closing coil panel 230, and a cavity 220 is formed between the opening coil panel and the closing coil panel. The repulsive disc 350 is disposed in the cavity 220 between the opening coil disc 210 and the closing coil disc 230.
The opening coil panel 210 has a first groove, the opening coil 310 is disposed in the first groove, and an insulating material is poured between the opening coil 310 and the opening coil panel 210, so that the opening coil 310 and the opening coil panel 210 are fixed.
The closing coil disk 230 has a second groove, the closing coil 330 is disposed in the second groove, and an insulating material is poured between the closing coil 230 and the closing coil disk 330, so that the closing coil 230 and the closing coil disk 330 are fixed.
The opening coil panel 210 has a circular hole 211 penetrating through the middle position, the first structural member 110 has a through hole 111, the repulsive force panel 350, the movable pull rod 370, the first structural member 110 and the opening coil panel 210 are concentrically arranged, and the movable pull rod 370 passes through the circular hole 211. The closing coil panel 230 has a mounting hole located at a middle position, and the magnetic conductive rod 250 is disposed in the mounting hole.
According to an example embodiment of the present application, the magnetic conductive rod 250, the opening coil 310, the closing coil 330, the opening coil disk 210, and the closing coil disk 230 are all high magnetic permeability materials. For example, silicon steel or soft iron material having a permeability greater than 100. The movable pull rod 370 is made of a high-strength and high-permeability material, such as silicon steel.
According to some example embodiments, the opening coil 310 is coaxially disposed with the opening coil panel 210, the closing coil 330 is coaxially disposed with the closing coil panel 230, and the repulsive force panel 350 is coaxially disposed in the cavity 220 between the opening coil panel 210 and the closing coil panel 230, i.e., the opening coil 310, the opening coil panel 210, the closing coil 330, the closing coil panel 230 and the repulsive force panel 350 are coaxially disposed.
The magnetic conductive rod 250 is coaxially arranged at the central position of the closing coil panel 230, the movable pull rod 370 is coaxially arranged on the magnetic conductive rod 250 through the through hole 371, and the movable pull rod 370 and the repulsive force panel 350 are coaxially arranged and fixedly connected.
According to some exemplary embodiments, the magnetic conducting rod 250 passes through the repulsion plate 350 and enters the through hole 371 of the movable pull rod 370, and the height of the upper end surface of the magnetic conducting rod 250 is flush with the upper end surface of the opening coil plate 210.
When the electromagnetic repulsion operation mechanism works, a preset current passes through the opening coil 310, meanwhile, the repulsion plate 350 generates an induced current, a repulsion force is generated between the opening coil 310 and the repulsion plate 350, the repulsion plate 350 drives the movable pull rod 370 to do a mechanical motion downwards relative to the first structural member 110 along the magnetic conductive rod 250, the movable pull rod 370 further drives the quick switch movable contact to complete an opening motion, and the air gap distance does not change in the motion process.
According to some exemplary embodiments, the outer side of the opening coil disk 210 extends downward beyond the lower surface of the opening coil 310 and fits the outer side of the closing coil disk 230; the first groove of the opening coil panel 210 is lower than the lower surface of the opening coil, and the repulsive force panel 350 is not in contact with the opening coil 310 when being attached to the opening coil panel 210.
The upward extension length of the outer side of the closing coil panel 230 exceeds the upper surface of the closing coil 330, and is attached to the downward extension part of the outer side of the opening coil panel 210; the second groove of the closing coil plate 230 is higher than the upper surface of the closing coil plate, and the repulsive disc 350 is not in contact with the closing coil 330 when being attached to the closing coil plate 230.
Fig. 2 is a schematic view showing a composition of a closing position of an electromagnetic repulsion operation mechanism according to an exemplary embodiment of the present application.
Referring to fig. 2, when a preset current passes through the closing coil 330, the repulsive disc 350 generates an induced current, an electromagnetic repulsive force is generated between the closing coil 330 and the repulsive disc 350, the repulsive disc 350 drives the moving rod 370 to move upwards mechanically relative to the second structural member 130, the moving rod 370 further drives the moving contact of the fast switch to complete a closing action, and an air gap distance does not change during the movement.
According to the exemplary embodiment of the present application, the closing coil 330 is powered on, and an electromagnetic repulsion force is generated between the closing coil 330 and the repulsion disc 350, and the repulsion force overcomes the gravity of the repulsion disc 350 and the movable pull rod 370, so that the repulsion disc 350 drives the movable pull rod 370 to move upward and rapidly along the magnetic conductive rod 250 relative to the second structural member 130, thereby implementing a closing action.
Fig. 3 is a schematic composition diagram of an electromagnetic repulsion operation mechanism matching with a buffer mechanism according to an exemplary embodiment of the present application.
Referring to fig. 3, the electromagnetic repulsion operating mechanism may further include a buffer assembly, wherein the buffer assembly includes a spring 410, and the spring is disposed on the magnetic rod 250; the magnetic conduction rod further comprises a limiting block 430, the limiting block 430 is fixed on the magnetic conduction rod 250,
according to an exemplary embodiment of the present application, the buffering component may be a coil spring, and the spring is sleeved on the magnetic conductive rod 250 and used for overcoming the gravity of the repulsive disc 350 and the movable pull rod 370. The magnetic conduction rod 250 is provided with a limiting block 430, the limiting block 430 limits the spring 410, and meanwhile, pretightening force is applied to the spring 410.
According to some exemplary embodiments, a pre-tightening force may be preset on the spring 410, and when the electromagnetic repulsion operating mechanism is not powered, the pre-tightening force of the spring 410 overcomes the gravity of the repulsion disc 350 and the movable pull rod 370, so that the switch is in the open position.
According to other exemplary embodiments of the present application, the repulsive disc 350 and the movable pull rod 370 are under the action of their own gravity, and when the opening coil is powered on, the movable pull rod 370 is under the action of electromagnetic repulsion force and also under the action of their own gravity and the action of the gravity of the repulsive disc 350, and the buffer assembly may play a role in balancing the repulsive disc 350 and the gravity of the movable pull rod 370 themselves.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (12)
1. An electromagnetic repulsion operation mechanism, comprising:
a first structural member;
a second structural member;
the driving unit comprises a switching-off coil, a switching-on coil, a repulsion disc and a movable pull rod;
the magnetic conduction unit comprises a switching-off coil panel, a switching-on coil panel, a magnetic conduction rod and the movable pull rod,
the opening coil panel is arranged on the first structural component, the closing coil panel is arranged on the second structural component,
the opening coil and the opening coil panel are coaxially arranged, the closing coil and the closing coil panel are coaxially arranged, the repulsion panel, the opening coil panel and the closing coil panel are coaxially arranged, the repulsion panel is arranged between the opening coil panel and the closing coil panel,
the movable pull rod is connected with the repulsion coil, the magnetic conduction rod is arranged at the central position of the closing coil panel, the repulsion coil and the movable pull rod are movably and coaxially arranged on the magnetic conduction rod, the magnetic conduction rod penetrates through the repulsion coil and enters the interior of the movable pull rod, the height of the upper end surface of the magnetic conduction rod is not lower than that of the lower end surface of the inner side of the opening coil panel,
the magnetic conducting unit forms a nearly fully closed magnetic yoke structure, and an air gap is reserved between the moving part and the static part of the magnetic conducting unit.
2. The operating mechanism according to claim 1, wherein the opening coil disc has a first groove, the opening coil is disposed in the first groove, and an insulating material is poured between the opening coil and the opening coil disc.
3. The operating mechanism of claim 1, wherein the closing coil disk has a second groove, the closing coil is disposed in the second groove, and an insulating material is cast between the closing coil and the closing coil disk.
4. The operating mechanism according to claim 1, wherein the opening coil disc has a circular hole penetrating through a middle position, the repulsive disc is disposed coaxially with the movable pull rod, and the movable pull rod passes through the circular hole.
5. The operating mechanism according to claim 1, wherein the closing coil disk has a mounting hole at a middle position, and the magnetic conductive rod is disposed in the mounting hole.
6. The operating mechanism of claim 1 wherein the opening coil disk and the closing coil disk are both of a high magnetic permeability material.
7. The operating mechanism of claim 1 wherein the opening coil and the closing coil are both of a high electrical conductivity material.
8. An operating mechanism according to claim 1 wherein the repulsive disc material is a high electrical conductivity non-magnetic conductive material.
9. The operating mechanism of claim 1 wherein said magnetically permeable rod material is a high magnetic permeability material.
10. The operating mechanism of claim 1 wherein said moving tie bar is a high strength, high permeability material.
11. The operating mechanism according to claim 1, further comprising a buffer unit disposed on the magnetic conductive rod.
12. An electrical device comprising an operating mechanism according to claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734330.9A CN113990683B (en) | 2020-07-27 | 2020-07-27 | Electromagnetic repulsion operating mechanism and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734330.9A CN113990683B (en) | 2020-07-27 | 2020-07-27 | Electromagnetic repulsion operating mechanism and electrical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113990683A true CN113990683A (en) | 2022-01-28 |
| CN113990683B CN113990683B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010734330.9A Active CN113990683B (en) | 2020-07-27 | 2020-07-27 | Electromagnetic repulsion operating mechanism and electrical equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192621A (en) * | 2003-12-26 | 2005-07-21 | Mitsumi Electric Co Ltd | Electromagnetic driving device and steering device of radio control car |
| CN101521089A (en) * | 2008-11-19 | 2009-09-02 | 清流县鑫磁线圈制品有限公司 | Inductor and manufacturing method thereof |
| FR2943838A1 (en) * | 2009-03-30 | 2010-10-01 | Schneider Electric Ind Sas | Electrical switching device for hybrid cut-off switch, has support comprising driving unit adapted to be collaborated with armature, where contacting of driving unit with armature drives its displacement in direction of yoke |
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN110428986A (en) * | 2019-08-19 | 2019-11-08 | 南京南瑞继保电气有限公司 | Electromagnetic repulsion force operating device and switch based on electromagnetic repulsion force operating device |
-
2020
- 2020-07-27 CN CN202010734330.9A patent/CN113990683B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005192621A (en) * | 2003-12-26 | 2005-07-21 | Mitsumi Electric Co Ltd | Electromagnetic driving device and steering device of radio control car |
| CN101521089A (en) * | 2008-11-19 | 2009-09-02 | 清流县鑫磁线圈制品有限公司 | Inductor and manufacturing method thereof |
| FR2943838A1 (en) * | 2009-03-30 | 2010-10-01 | Schneider Electric Ind Sas | Electrical switching device for hybrid cut-off switch, has support comprising driving unit adapted to be collaborated with armature, where contacting of driving unit with armature drives its displacement in direction of yoke |
| CN106783258A (en) * | 2017-01-23 | 2017-05-31 | 天津平高智能电气有限公司 | Switching device and the high-speed switch using the device |
| CN110428986A (en) * | 2019-08-19 | 2019-11-08 | 南京南瑞继保电气有限公司 | Electromagnetic repulsion force operating device and switch based on electromagnetic repulsion force operating device |
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| Publication number | Publication date |
|---|---|
| CN113990683B (en) | 2023-12-29 |
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