CN113223901A - AC double-electric switching device capable of providing current-limiting protection when grounding current is too large - Google Patents
AC double-electric switching device capable of providing current-limiting protection when grounding current is too large Download PDFInfo
- Publication number
- CN113223901A CN113223901A CN202110488438.9A CN202110488438A CN113223901A CN 113223901 A CN113223901 A CN 113223901A CN 202110488438 A CN202110488438 A CN 202110488438A CN 113223901 A CN113223901 A CN 113223901A
- Authority
- CN
- China
- Prior art keywords
- shell
- outer side
- current
- fixedly connected
- limiting protection
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Abstract
The invention relates to the technical field of alternating current double-electric switching devices, and discloses an alternating current double-electric switching device capable of providing current-limiting protection when grounding current is overlarge. This can provide two electric auto-change over devices of interchange of current-limiting protection when ground current is too big, through the connection of shell, elastic component, the problem of the two electric auto-change over devices of interchange of prior art short circuit easily when ground connection has been solved, utilize mechanical device, when the electric current peak value is too big, can control automatically, the switching circuit avoids exchanging two electric auto-change over devices and is damaged, clears up inside dust simultaneously, avoids the more condition of electric ion when dust is more in the air widely, avoids the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of alternating current double-electric switching devices, in particular to an alternating current double-electric switching device capable of providing current limiting protection when grounding current is overlarge.
Background
The current limiter of the alternating current double-electric switching device in the prior art is relatively high in internal impedance, so that a load is relatively large, and when self-inductance is generated, relatively high self-inductance electromotive force is easily generated to cause potential safety hazards.
In order to solve the above problems, the inventor provides an ac dual-power switching device capable of providing current-limiting protection when the grounding current is too large, and by the connection of the housing and the elastic member, the problem that the ac dual-power switching device in the prior art is easy to short circuit when being grounded is solved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the alternating current double-electric switching device which can provide current-limiting protection when the grounding current is overlarge, has the advantages of simple and convenient use and potential safety hazard avoidance, and solves the problems of complex use and large potential safety hazard.
(II) technical scheme
In order to realize the purposes of simple and convenient use and potential safety hazard avoidance, the invention provides the following technical scheme: the alternating-current double-electric switching device capable of providing current-limiting protection when the grounding current is too large comprises a shell, wherein the interior of the shell is movably connected with an excitation, the interior of the shell is slidably connected with a first connecting plate, the outer side of the first connecting plate is movably connected with an anti-creeping device, the outer side of the excitation is movably connected with an elastic piece, the outer side of the elastic piece is fixedly connected with a second connecting plate, the bottom surface of the second connecting plate is fixedly connected with a first connecting shaft, the bottom end of the first connecting shaft is rotatably connected with a first connecting rod, the bottom end of the first connecting rod is rotatably connected with a blocking block, the outer side of the blocking block is slidably connected with a connecting shell, the interior of the shell is movably connected with an inductor, the outer side of the shell is fixedly connected with a first shell, the outer side of the first shell is fixedly connected with a first rack, and the outer side of the first rack is meshed with a half gear, the outer side of the half gear is connected with a sliding chute in a sliding mode, and the outer side of the shell is movably connected with a voltage conversion device.
Preferably, excitation and inductance all are connected with the electric wire transmission, two are no less than in the excitation setting, and excitation and first connecting plate all with spring fixed connection, consequently, the magnetic field opposite direction through two excitations for can carry out automatic control through the electric current peak value, elasticity through the spring makes can keep voltage stable when normal use.
Preferably, the anti-creeping device is in transmission connection with the electric wire, and the memory spring is fixedly connected inside the elastic piece, so that the anti-creeping device plays a role in connection and vibration reduction through the elasticity of the memory spring.
Preferably, the number of the first connecting rods and the number of the blocking blocks are not less than two, the first connecting rods and the blocking blocks are symmetrically distributed about the central line of the first connecting shaft, and through holes are formed in the connecting shell, so that the function of controlling air flow is achieved through the through holes.
Preferably, the outer side of the half gear is fixedly connected with a sliding block, and the sliding block is connected with the sliding groove in a sliding mode.
Preferably, the sliding groove and the first shell are both fixedly connected with the spring, and the outer side of the shell is movably connected with a voltage conversion device.
Preferably, the surface of the first housing is fixedly connected with the sliding shell, and the voltage conversion device is fixedly connected with the electric wire.
(III) advantageous effects
Compared with the prior art, the invention provides the alternating current double-electric switching device which can provide current-limiting protection when the grounding current is overlarge, and the alternating current double-electric switching device has the following beneficial effects:
1. this can provide two electric auto-change over devices of interchange of current-limiting protection when ground current is too big, through the connection of shell, excitation, first connecting plate, anticreep device, elastic component, solved the problem of the easy short circuit of two electric auto-change over devices of interchange when ground connection of prior art, utilize mechanical device, when the electric current peak value is too big, can control voluntarily, switching circuit avoids exchanging two electric auto-change over devices and is damaged.
2. This can provide two electric auto-change over devices of interchange of current-limiting protection when ground current is too big, through the connection of first even axle, first connecting rod, sprue, connection shell, inductance, the inconvenient problem of current limiter of two electric auto-change over devices of interchange of prior art has been solved, utilize the flow of inert gas with the air current for when self-induced electromotive force is great, can avoid puncturing electric arc, clear up inside dust simultaneously, avoid the more condition of electric ion when dust is more in the air widely, avoid the potential safety hazard.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a first housing structure according to the present invention;
FIG. 3 is a schematic view of a block configuration according to the present invention;
FIG. 4 is a schematic view of the chute structure of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
In the figure: 1. a housing; 2. excitation; 3. a first connecting plate; 4. a leakage preventing device; 5. an elastic member; 6. a second connecting plate; 7. a first coupling shaft; 8. a first link; 9. blocking; 10. a connecting shell; 11. an inductance; 12. a first housing; 13. a first rack; 14. a half gear; 15. a chute; 16. a voltage conversion device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 present invention, and not all of the embodiments. 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 invention.
Referring to fig. 1-5, an ac dual-power switching device capable of providing current-limiting protection when ground current is too large includes a housing 1, an excitation 2 is movably connected inside the housing 1, the excitation 2 and an inductor 11 are both in transmission connection with a wire, the excitation 2 is not less than two, the excitation 2 and a first connection plate 3 are both fixedly connected with a spring, so that the magnetic field directions of the two excitations 2 are opposite, so that automatic control can be performed through a current peak value, the voltage can be kept stable during normal use through the elasticity of the spring, the housing 1 is slidably connected with the first connection plate 3, an anti-creeping device 4 is movably connected outside the first connection plate 3, the anti-creeping device 4 is in transmission connection with the wire, and a memory spring is fixedly connected inside the elastic member 5, so that the connection and vibration reduction effects are achieved through the elasticity of the memory spring, the outer side of the excitation 2 is movably connected with an elastic part 5, the outer side of the elastic part 5 is fixedly connected with a second connecting plate 6, the bottom surface of the second connecting plate 6 is fixedly connected with a first connecting shaft 7, the bottom end of the first connecting shaft 7 is rotatably connected with a first connecting rod 8, the bottom end of the first connecting rod 8 is rotatably connected with a blocking block 9, the outer side of the blocking block 9 is slidably connected with a connecting shell 10, the number of the first connecting rod 8 and the number of the blocking block 9 are not less than two, the first connecting rod 8 and the blocking block 9 are symmetrically distributed about the central line of the first connecting shaft 7, the connecting shell 10 is internally provided with a through hole, therefore, the function of controlling air flow is achieved through the through hole, the inner part of the shell 1 is movably connected with an inductor 11, the outer side of the shell 1 is fixedly connected with a first shell 12, the outer side of the first shell 12 is fixedly connected with a first rack 13, the outer side of the first rack 13 is engaged with a half gear 14, the outer side of the half gear 14 is slidably connected with a chute 15, and the outer side of the half gear 14 is fixedly connected with a slide block, the sliding block is connected with the sliding groove 15 in a sliding mode, the outer side of the shell 1 is movably connected with a voltage conversion device 16, the sliding groove 15 and the first shell 12 are both fixedly connected with the spring, the surface of the first shell 12 is fixedly connected with the sliding shell, the voltage conversion device 16 is fixedly connected with an electric wire, and the outer side of the shell 1 is movably connected with the voltage conversion device 16.
When the magnetic field excitation device is used, the current passing through the excitation 2 in the shell 1 is increased due to overlarge grounding current, the excitation 2 is electrified by a field coil to establish a magnetic field, the directions of the magnetic fields arranged by the two excitations 2 are opposite, the current is increased to strengthen the magnetic field, the directions of the magnetic fields passing through the two excitations 2 are opposite, repulsion force is generated, the two excitations 2 are separated, the circuits of the two excitations 2 are disconnected, the excitation 2 system has a certain power grid stability compensation function, the spring is extruded by the excitation 2 to extrude the first connecting plate 3, the first connecting plate 3 extrudes the anti-leakage device 4 to move towards two sides, the first connecting plate 3 pulls the blocking block 9 to move towards two sides, the through hole in the connecting shell 10 is opened, the inert gas flow moves, and the current passes through the inductor 11 to generate a self-induction phenomenon, through inert gas, avoid impedance to produce the breakdown electric arc when great, when 2 work of excitation is overheated, memory spring through the inside of elastic component 5 is heated and expanded, make elastic component 5 inflation, drive second connecting plate 6 through reaction force and move to the outside, make second connecting plate 6 promote first connecting rod 7, make first connecting rod 8 of first connecting rod 7 drive rotates, make first connecting rod 8 promote sprue 9 and open, dispel the heat, the inflation is heated through the gas in the inside of first casing 12, make first rack 13 drive half gear 14 through the meshing and rotate, make half gear 14 drive spout 15 and remove, make first casing 12 open, carry out the gas heat exchange.
In summary, the ac dual-electric switching device capable of providing current-limiting protection when the ground current is too large solves the problem of the prior art that the ac dual-electric switching device is easy to short circuit when being grounded through the connection of the housing 1, the excitation 2, the first connecting plate 3, the anti-leakage device 4 and the elastic element 5, and can automatically control and switch the circuit when the current peak value is too large by using a mechanical device, thereby preventing the ac dual-electric switching device from being damaged.
This can provide two electric auto-change over devices of interchange of current-limiting protection when ground current is too big, through first even axle 7, first connecting rod 8, sprue 9, connect shell 10, inductance 11's connection, the inconvenient problem of current limiter of the two electric auto-change over devices of interchange of prior art has been solved, utilize inert gas with the flow of air current, when making self-inductance electromotive force great, can avoid puncturing electric arc, clear up inside dust simultaneously, avoid the more condition of electric ion when dust is more in the air widely, avoid the potential safety hazard.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Can provide two electric auto-change over devices of interchange of current-limiting protection when ground current is too big, including shell (1), its characterized in that: the inner swing joint of the shell (1) is provided with an excitation (2), the inner sliding connection of the shell (1) is provided with a first connecting plate (3), the outer side of the first connecting plate (3) is provided with an anti-creeping device (4), the outer side of the excitation (2) is provided with an elastic part (5), the outer side of the elastic part (5) is fixedly connected with a second connecting plate (6), the bottom surface of the second connecting plate (6) is fixedly connected with a first connecting shaft (7), the bottom end of the first connecting shaft (7) is rotatably connected with a first connecting rod (8), the bottom end of the first connecting rod (8) is rotatably connected with a blocking block (9), the outer side of the blocking block (9) is provided with a connecting shell (10), the inner swing joint of the shell (1) is provided with an inductor (11), the outer side of the shell (1) is fixedly connected with a first shell (12), the outer side of the first shell (12) is fixedly connected with a first rack (13), the outer side of the first rack (13) is meshed with a half gear (14), the outer side of the half gear (14) is connected with a sliding groove (15) in a sliding mode, and the outer side of the shell (1) is movably connected with a voltage conversion device (16).
2. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: excitation (2) and inductance (11) all are connected with the electric wire transmission, excitation (2) set up to be no less than two, excitation (2) and first connecting plate (3) all with spring fixed connection.
3. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: the anti-creeping device (4) is in transmission connection with a wire, and the elastic piece (5) is fixedly connected with a memory spring inside.
4. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: the first connecting rod (8) and the blocking block (9) are not less than two in number and are symmetrically distributed about the center line of the first connecting shaft (7), and a through hole is formed in the connecting shell (10).
5. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: the outer side of the half gear (14) is fixedly connected with a sliding block, and the sliding block is connected with a sliding groove (15) in a sliding mode.
6. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: the sliding chute (15) and the first shell (12) are fixedly connected with the spring, and the outer side of the shell (1) is movably connected with a voltage conversion device (16).
7. An ac dual electric switching apparatus capable of providing current limiting protection when ground current is excessive according to claim 1, wherein: the surface of the first shell (12) is fixedly connected with the sliding shell, and the voltage conversion device (16) is fixedly connected with the electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488438.9A CN113223901B (en) | 2021-05-06 | 2021-05-06 | AC double-electric switching device capable of providing current-limiting protection when grounding current is too large |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488438.9A CN113223901B (en) | 2021-05-06 | 2021-05-06 | AC double-electric switching device capable of providing current-limiting protection when grounding current is too large |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113223901A true CN113223901A (en) | 2021-08-06 |
| CN113223901B CN113223901B (en) | 2022-02-15 |
Family
ID=77090905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110488438.9A Active CN113223901B (en) | 2021-05-06 | 2021-05-06 | AC double-electric switching device capable of providing current-limiting protection when grounding current is too large |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113223901B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090273419A1 (en) * | 2006-09-07 | 2009-11-05 | Norbert Mitlmeier | Switching device, in particular a compact starter |
| EP2555217A1 (en) * | 2011-08-02 | 2013-02-06 | Abb Ag | Electricity limiting system |
| CN105720566A (en) * | 2016-02-02 | 2016-06-29 | 章五明 | Short-circuit fault current-limiting protector |
| CN108448551A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | A kind of exchange current limiter and its current-limiting method |
| CN210120099U (en) * | 2019-04-18 | 2020-02-28 | 湖北工业大学 | Plug-and-play line protection device |
| CN112728786A (en) * | 2021-01-23 | 2021-04-30 | 厦门蔷霖纺织有限公司 | Solar heat collection power generation light-gathering point adjusting device |
-
2021
- 2021-05-06 CN CN202110488438.9A patent/CN113223901B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090273419A1 (en) * | 2006-09-07 | 2009-11-05 | Norbert Mitlmeier | Switching device, in particular a compact starter |
| EP2555217A1 (en) * | 2011-08-02 | 2013-02-06 | Abb Ag | Electricity limiting system |
| CN105720566A (en) * | 2016-02-02 | 2016-06-29 | 章五明 | Short-circuit fault current-limiting protector |
| CN108448551A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | A kind of exchange current limiter and its current-limiting method |
| CN210120099U (en) * | 2019-04-18 | 2020-02-28 | 湖北工业大学 | Plug-and-play line protection device |
| CN112728786A (en) * | 2021-01-23 | 2021-04-30 | 厦门蔷霖纺织有限公司 | Solar heat collection power generation light-gathering point adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113223901B (en) | 2022-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106385018B (en) | A kind of short-circuit fault current limiter | |
| CN105024369A (en) | Current transfer device and method suitable for hybrid DC breaker | |
| CN107863761A (en) | A kind of high voltage DC breaker with saturable reactor | |
| CN104836447A (en) | Large power parallel double-switch forward DC/DC power supply module | |
| CN113223901B (en) | AC double-electric switching device capable of providing current-limiting protection when grounding current is too large | |
| CN201677116U (en) | Insulated gate bipolar transistor inversion AC/DC argon arc welder | |
| CN108206531A (en) | Circuit and middle buckling stream case applied to energy storage frequency modulation system | |
| EP1751863B1 (en) | Power switching apparatus | |
| CN206849669U (en) | A kind of dry-type on-load tap changer circuit | |
| CN105978343A (en) | Multipath output switch power supply and inverter | |
| CN103887782A (en) | Hybrid type flux coupling superconduction fault current limiter and current limitation method | |
| CN204760203U (en) | Dry -type on -load voltage -regulating transformer with wiring copper bar | |
| CN206180580U (en) | Short circuit fault current limiter | |
| CN201677127U (en) | Inversion air plasma cutting machine of bipolar transistor of insulated gate | |
| CN108322205A (en) | A kind of bridge-type solid-state direct-current breaker and its control method | |
| CN105845402A (en) | Variable-impedance transformer | |
| WO2014101286A1 (en) | On-load tap-changer with thyristor auxiliary and working method thereof | |
| CN207801467U (en) | A kind of novel LC parallel connections current-limiting apparatus of high pressure | |
| CN101980348A (en) | Alternating current contact with soft-start and non-arc make-and-break functions | |
| CN103280819B (en) | Paralleling reactor compensation loop of transformer substation and compensation method of paralleling reactor compensation loop of transformer substation | |
| CN214495459U (en) | Integrated trolley line ice melting device | |
| CN205362958U (en) | A gas shielded welder for getting angry protect major loop that welds and have this major loop | |
| CN207572960U (en) | A kind of high voltage DC breaker with saturable reactor | |
| CN2437029Y (en) | Switching switch for dry type loaded distributing switch | |
| CN102497184B (en) | Multifunctional solid-state switch adopting thyristor self-triggering technology |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |