CN106712278B - Dual-power supply fast switching switch - Google Patents
Dual-power supply fast switching switch Download PDFInfo
- Publication number
- CN106712278B CN106712278B CN201710056739.8A CN201710056739A CN106712278B CN 106712278 B CN106712278 B CN 106712278B CN 201710056739 A CN201710056739 A CN 201710056739A CN 106712278 B CN106712278 B CN 106712278B
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- Prior art keywords
- switching
- magnet
- vacuum
- vacuum bubble
- brake
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- 239000000696 magnetic material Substances 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 230000000712 assembly Effects 0.000 abstract description 10
- 238000000429 assembly Methods 0.000 abstract description 10
- 230000009977 dual effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- H02J9/061—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 for DC powered loads
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- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a dual-power quick switching switch, which comprises an upper incoming line row, an upper vacuum bubble, a lower incoming line row, an outgoing line row, a linkage device and a switching-on/off switching device, wherein vacuum arc-extinguishing chambers are respectively arranged in the upper vacuum bubble and the lower vacuum bubble, an electric contact assembly is arranged in each vacuum arc-extinguishing chamber, the upper incoming line row and the lower incoming line row are respectively electrically connected with the upper incoming line row and the lower incoming line row through electric contact assemblies in the upper vacuum bubble and the lower vacuum bubble, the linkage device is connected with the electric contact assemblies in the upper vacuum bubble and the lower vacuum bubble, and the switching-on/off switching device is connected with the linkage device; the dual-power fast switching switch has the advantages of fast switching, strong arc extinguishing capability, wide application occasions and automatic switching, so that the switching efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power supply fast switching switches, in particular to a dual-power supply fast switching switch.
Background
As power failures occur frequently, such as: automatic switching between power supplies is required to ensure the reliability and safety of power supply, and the double-power switch is widely applied to important places such as high-rise buildings, communities, hospitals, airports, subways, data centers, elevators, precision manufacturing, chemical industry, prevention and the like which do not allow power failure. However, the conventional dual power switch still has the following disadvantages: (1) The switching time is long, the conventional switching time is within 50-80 ms, and the safety and stability cannot be provided for equipment; (2) the breaker is switched on and off, and the arc extinguishing capability is limited; (3) single structure, less adaptation occasion; (4) When the power supply is switched, the time is needed to confirm whether the power supply is disconnected or not, and the power supply is switched according to a certain operation sequence, so that the switching efficiency is reduced, and the production requirement cannot be met.
Finally, the existing dual-power switch needs to be improved, especially to increase the switching speed and arc extinguishing capability.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the dual-power fast switching switch which has the advantages of fast switching, strong arc extinguishing capability, wide application occasions and automatic switching so as to improve the switching efficiency.
The object of the invention is achieved in that:
the double-power-supply quick switching switch is characterized by comprising an upper incoming line row, an upper vacuum bubble, a lower incoming line row, an outgoing line row, a linkage device and a switching-on/off switching device, wherein vacuum arc-extinguishing chambers are respectively arranged in the upper vacuum bubble and the lower vacuum bubble, an electric contact assembly is arranged in each vacuum arc-extinguishing chamber, the upper incoming line row and the lower incoming line row are respectively electrically connected with the upper incoming line row and the lower incoming line row through the electric contact assemblies in the upper vacuum bubble and the lower vacuum bubble, the linkage device is connected with the electric contact assemblies in the upper vacuum bubble and the lower vacuum bubble, and the switching-on/off switching device is connected with the linkage device; the dual-power fast switching switch is characterized in that when the dual-power fast switching switch works, one path of incoming line (such as an upper incoming line row) forms one path of power through an upper vacuum bulb and an outgoing line row, if the power fails, the switching device drives the electric contact assemblies in the upper vacuum bulb and a lower vacuum bulb through a linkage device, so that the electric contact assemblies in the upper vacuum bulb are disconnected, and meanwhile, the electric contact assemblies in the lower vacuum bulb are fast connected, namely: the lower inlet wire row, the lower vacuum bulb and the outlet wire row form another path to be connected with a power supply, so that double power supply switching is realized rapidly; furthermore, as the two paths of electric contact assemblies are arranged in the vacuum arc-extinguishing chamber of the vacuum bulb, the arc-extinguishing capability is strong, and the double-power switching can be suitable for various use places, and the application occasions are wide; further, it has a high switching efficiency due to the automatic switching.
The aim of the invention can be also solved by adopting the following technical measures:
as a more specific scheme, the linkage device comprises an insulation pull rod, a linkage fixing piece, a linkage pull rod and a rubber shock pad, wherein two ends of the insulation pull rod are respectively connected with an upper vacuum bubble and an electric contact assembly in a lower vacuum bubble, the linkage fixing piece is connected with the switching device through the linkage pull rod, and the rubber shock pad is fixed on the linkage fixing piece; like this, linkage mounting accessible linkage pull rod pulling insulation pull rod makes the insulation pull rod synchronous pulling upper and lower vacuum bubble in the electrical contact subassembly, realizes that one of them electrical contact subassembly disconnection, and another electrical contact subassembly is put through fast, and its simple structure is reasonable, especially rubber shock pad's setting, when upper and lower vacuum bubble in the closed or separate in the twinkling of an eye, rubber shock pad plays buffering, the effect of shock attenuation to reach the electrical contact subassembly in the vacuum bubble and effectively close or effectively separate, improve the security and the stability of dual power supply fast on-off switch in the switching process.
As a more specific scheme, the electric contact assembly comprises a moving contact and a fixed contact, wherein the fixed contact is electrically connected with the upper incoming line row, the moving contact is electrically connected with the outgoing line row, and the moving contact is also connected with an insulating pull rod; that is, the insulating pull rod pulls the movable contact to effect closing or opening of the electrical contact assembly.
As a more specific scheme, the outer walls of the upper vacuum bubble and the lower vacuum bubble are porcelain sleeves, and the movable contact is connected with the insulating pull rod through the corrugated pipe so as to further improve the arc extinguishing function of the movable contact.
As a more specific scheme, the switching device comprises a direct current electromagnet, a switching magnet and a switching control circuit, wherein the direct current electromagnet is fixed on a linkage pull rod and is positioned between the switching magnet and the switching magnet, and the direct current electromagnet is electrically connected with the switching control circuit; after the direct-current electromagnet is electrified, repulsive force or attractive force is generated on the opening magnet or the closing magnet, so that the electromagnet moves to attract or separate from the opening magnet and the closing magnet, and the linkage device is driven.
As the more specific implementation mode, the closing magnet and the opening magnet are both made of E-shaped soft magnetic materials, wherein protruding parts on two sides of the closing magnet are S poles, protruding parts in the middle are N poles, protruding parts on two sides of the opening magnet are N poles, protruding parts in the middle are S poles, and the direct current electromagnet is positioned between the closing magnet and the opening magnet. The switching-on principle is as follows: when the direct-current electromagnet in the middle is electrified in the forward direction, the direct-current electromagnet and the switching-on magnet generate attractive force and generate repulsive force with the switching-off magnet, so that the direct-current electromagnet is attracted upwards, and when the direct-current electromagnet is electrified continuously, the direct-current electromagnet keeps in a constantly attracted state, so that the structure of replacing the permanent magnet can be provided while switching power; the switching-off principle is also similar and will not be repeated here.
The switching device comprises a switching-on coil, an intermediate magnet, a switching-off coil and a switching-on switching control circuit, wherein the switching-on coil and the switching-off coil both comprise E-type structural soft magnetic materials and coils arranged on the E-type structural soft magnetic materials, the coils are electrically connected with the switching-on switching control circuit, the intermediate magnet comprises an intermediate soft magnetic material and an upper permanent magnet and a lower permanent magnet which are fixed on the intermediate soft magnetic materials, and the two permanent magnets are respectively close to the switching-on coil and the switching-off coil; when the closing coil and the opening coil are electrified to form a magnet, the middle magnet is attracted upwards by the upper end attractive force or the lower end repulsive force, or the middle magnet is attracted downwards by the upper end repulsive force or the lower end attractive force, so that the function of rapidly switching power supplies is achieved, and as the middle soft magnetic material is inlaid with the upper permanent magnet and the lower permanent magnet (for example, six permanent magnets), the middle soft magnetic material is attracted with the coils, so that the permanent closing is ensured.
As a more specific scheme, the brake-opening and-closing device also comprises a brake-opening and-closing maintaining device, wherein the brake-opening and-closing maintaining device comprises a brake-opening maintaining permanent magnet, a brake-closing maintaining permanent magnet and an armature, and the armature is fixed on the linkage pull rod and is positioned between the brake-opening maintaining permanent magnet and the brake-closing maintaining permanent magnet; the armature is arranged to keep the state of closing or opening the switch of the double-power quick-switching switch, so that the double-power quick-switching switch is beneficial to effectively closing or opening the electrical contact assemblies in the upper vacuum bubble and the lower vacuum bubble of the double-power quick-switching switch.
As a more specific scheme, the opening and closing holding device and the opening and closing switching device are respectively located at one sides of an upper vacuum bubble and a lower vacuum bubble, the upper inlet wire row and the lower inlet wire row are respectively provided with an upper three-phase power input end and a lower three-phase power input end, the outlet wire row is provided with a three-phase power output end, the upper three-phase power input ends and the lower three-phase power input ends of the upper two groups are respectively connected with the corresponding three upper vacuum bubbles and three lower vacuum bubbles, and each phase power output end of the three-phase power output ends is connected with the corresponding one upper vacuum bubble and one lower vacuum bubble.
The three upper vacuum bubbles and the three lower vacuum bubbles are arranged in parallel according to two rows of upper and lower or left and right, or three vacuum bubbles in each row are arranged according to a 'article' shape
Because the action of closing realizes the motion of separating simultaneously, it is much faster than the action that old switch cut off earlier and put into later, so the quick switching switch of dual supply reduces the switching time at the switching process is great, moreover, adopt the vacuum arc extinguishing principle in the vacuum bubble for the effect of arc extinguishing effect is better than the effect of circuit breaker, so the quick switching switch of dual supply improves the security at the switching process is great.
The beneficial effects of the invention are as follows:
(1) The dual-power quick switching switch has the advantages that the structure is novel, the electric contact assembly in the upper vacuum bulb is closed, and meanwhile, the electric contact assembly in the lower vacuum bulb is separated, so that quick switching is realized, redundant actions are not needed, more place demands are met, and the safety and reliability are greatly improved.
(2) Furthermore, the safety is greatly enhanced, and the switching mode of the vacuum bubble is used, so that the arc extinguishing performance of the switch is enhanced, the switch is effectively switched, the equipment is effectively operated, and the operation of staff is safer.
(3) Two kinds of different switching devices that divide-shut brake, its mounting structure is simple and easy, and adaptation occasion is wider, satisfies the customer of more demands.
Therefore, in view of the above structural advantages, the dual-power fast switching switch is stable in operation, and provides stable, safe and reliable power for each device.
Drawings
FIG. 1 is a schematic diagram of a dual power fast on-off switch of the present invention.
FIG. 2 is a schematic diagram of a first embodiment of the dual power fast on-off switch of FIG. 1.
Fig. 3 is a front view of fig. 2.
FIG. 4 is a schematic diagram of a second embodiment of the dual power fast on-off switch of FIG. 1.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a schematic diagram of a third embodiment of the dual power fast on-off switch of fig. 1.
Fig. 7 is a schematic structural diagram of the switching device of the opening/closing of the present invention.
Fig. 8 is a schematic diagram of another embodiment of fig. 7.
Detailed Description
The invention will be further described in detail with reference to the drawings and examples.
Referring to fig. 1 to 7, a dual-power fast on-off switch is characterized by comprising an upper incoming line row 51, an upper vacuum bulb 11, a lower vacuum bulb 12, a lower incoming line row 52, an outgoing line row 41, a linkage device 70 and an on-off switching device 80, wherein vacuum arc-extinguishing chambers 3 are respectively arranged in the upper vacuum bulb 11 and the lower vacuum bulb 12, an electrical contact assembly 90 is arranged in the vacuum arc-extinguishing chambers 3, the upper incoming line row 51 and the lower incoming line row 52 are respectively electrically connected with the upper incoming line row 51 and the lower incoming line row 52 through the electrical contact assembly 90 in the upper vacuum bulb 11 and the lower vacuum bulb 12, the linkage device 70 is connected with the electrical contact assembly 90 in the upper vacuum bulb 11 and the lower vacuum bulb 12, and the on-off switching device 80 is connected with the linkage device 70.
In this embodiment, the linkage device 70 includes an insulating pull rod 8, a linkage fixing member 9, a linkage pull rod 10 and a rubber shock pad 20, two ends of the insulating pull rod 8 are respectively connected with an electrical contact assembly 90 in the upper vacuum bulb 11 and the lower vacuum bulb 12, the linkage fixing member 9 is connected with the switching device 80 through the linkage pull rod 10, and the rubber shock pad 20 is fixed on the linkage fixing member 9.
As shown in the drawing, the electrical contact assembly 90 includes a moving contact 4 and a fixed contact 2, the fixed contact 2 is electrically connected with the upper incoming line row 51, the moving contact 4 is electrically connected with the outgoing line row 41, and the moving contact 4 is also connected with the insulating pull rod 8.
The outer walls of the upper vacuum bubble 11 and the lower vacuum bubble 12 are porcelain sleeves 6, and the movable contact 4 is connected with the insulating pull rod 8 through the corrugated pipe 7. The switching device 80 comprises a dc electromagnet 18, a switching magnet 16, a switching magnet 17 and a switching control circuit 19, wherein the dc electromagnet 18 is fixed on the linkage rod 10 and located between the switching magnet 16 and the switching magnet 17, and the dc electromagnet 18 is electrically connected with the switching control circuit 19; the closing magnet 17 and the opening magnet 16 are both made of E-shaped soft magnetic materials, wherein protruding parts on two sides of the closing magnet 17 are S poles, protruding parts in the middle are N poles, protruding parts on two sides of the opening magnet 16 are N poles, protruding parts in the middle are S poles, and the direct current electromagnet 18 is located between the closing magnet 17 and the opening magnet 16.
The brake-off and brake-on device is characterized by further comprising a brake-on and brake-off maintaining device 60, wherein the brake-on and brake-off maintaining device 60 comprises a brake-off maintaining permanent magnet 13, a brake-on maintaining permanent magnet 14 and an armature 15, and the armature 15 is fixed on the linkage pull rod 10 and is positioned between the brake-off maintaining permanent magnet 13 and the brake-on maintaining permanent magnet 14.
As shown in fig. 2 and 3, the switch-off and switch-on holding device 60 and the switch-on switching device 80 are respectively located at one side of the upper vacuum bubble and the lower vacuum bubble 12, the upper incoming line row 51 and the lower incoming line row 52 are respectively provided with two groups of three-phase power input ends, the outgoing line row 41 is provided with three-phase power output ends, the three-phase power input ends of the upper group and the lower group are respectively connected with the corresponding three upper vacuum bubbles 11 and the three lower vacuum bubbles 12, each phase power output end of the three-phase power output ends is connected with the corresponding one upper vacuum bubble 11 and one lower vacuum bubble 12, the three upper vacuum bubbles 11 and the three lower vacuum bubbles 12 are arranged up and down, and each row of three vacuum bubbles are arranged in parallel.
As shown in fig. 4 and 5, the three upper vacuum bubbles 11 and the three lower vacuum bubbles 12 may be arranged in two upper and lower rows, each row having three vacuum bubbles arranged in a "delta" shape.
As shown in fig. 6, three upper vacuum bubbles 11 and three lower vacuum bubbles 12 may be arranged in two rows, left and right, with three vacuum bubbles in each row being juxtaposed.
Referring to fig. 7, the switching device 80 may also have another embodiment, in this embodiment, the switching device 80 includes a closing coil 21, an intermediate magnet 24, a switching coil 22, and a switching control circuit 19, where the closing coil 21 and the switching coil 22 each include an E-type structural soft magnetic material, and a coil disposed on the E-type structural soft magnetic material, the coil is electrically connected to the switching control circuit 19, the intermediate magnet 24 includes an intermediate soft magnetic material, and upper and lower permanent magnets fixed on the intermediate soft magnetic material, and the two permanent magnets are respectively adjacent to the closing coil 21 and the switching coil 22.
The following is a further explanation of the technical scheme of this patent:
referring to the embodiment of fig. 1 to 6, the dual-power fast switching switch of the present invention, the static contact 2 in the upper and lower vacuum bubbles 11, 12 is used as a connection point with an ac power source with an external voltage of 0.4kV, the moving contact 4 in the upper and lower vacuum bubbles 11, 12 is connected with the insulating pull rod 8, the insulating pull rod 8 is effectively connected with the linkage pull rod 10, the armature 15 and the dc electromagnet 18, the switching control circuit 19 provides fast switching power for switching, the vacuum arc extinguishing chamber 3, the porcelain bushing 6 and the bellows 7 provide arc extinguishing function for switching, the upper and lower wire inlet rows 51, 52 and the wire outlet row 41 are copper rows, the wire outlet row 41 is connected with the moving contact 4 through soft connection, and each vacuum bubble is arranged according to a shape or a shape of a figure, so as to form the dual-power fast switching switch, and the overall structure is reasonable, safe and stable.
As shown in fig. 1, two sets of three-phase power supplies are respectively connected with the fixed contacts 2 in the upper vacuum bubble 11 and the lower vacuum bubble 12, the movable contacts 4 in the upper vacuum bubble 11 and the lower vacuum bubble 12 are connected with the insulating pull rod 8, the insulating pull rod 8 is connected with the linkage fixing piece 9, the linkage fixing piece 9 is connected with the armature 15 through the upper part of the linkage pull rod 10, the lower part of the linkage fixing piece is connected with the direct current electromagnet 18, the armature 15 is fixed between the opening holding permanent magnet 13 and the closing holding permanent magnet 14, the direct current electromagnet 18 is fixed between the opening holding permanent magnet 16 and the closing magnet 17, the direct current electromagnet 18 can generate a forward magnetic field or a reverse magnetic field through direct current, the rubber shock absorption pad 20 is arranged on the linkage fixing piece 9, and the movable contacts 4 in the upper vacuum bubble 11 and the lower vacuum bubble 12 are connected with the wire outlet row 41 through soft connection, so that a reasonable and effective electric circuit is formed.
As shown in fig. 2 and 3, the dual-power fast on-off switch may be assembled in a straight line arrangement, with two sets of ac power being connected to the upper and lower line-in lines 51, 52, respectively, and the line-out line 41 being connected to the line-in end of the device. The direct-current electromagnet 18 is switched between the switching-off magnet 16 and the switching-on magnet 17 to drive the linkage fixing piece 9 to move upwards or downwards, so that the electric contact assemblies 90 in the upper vacuum bubble 11 and the lower vacuum bubble 12 are closed or separated, and the effect of rapid switching is realized.
As shown in fig. 4 and 5, the dual-power quick-switching switch can be assembled in a delta-shaped arrangement, so that a plurality of installation modes are provided for customers, and the field installation requirements are met.
As shown in fig. 6, the dual-power fast switching switch can be assembled in a manner of arranging two rows of left and right, wherein each row is formed by arranging three vacuum bubbles in an up-down manner in a straight line, two groups of alternating-current power supplies are respectively connected with an upper inlet wire row 51 and a lower inlet wire row 52, an outlet wire row 41 is connected with an inlet wire end of equipment, and a direct-current electromagnet 18 is used for switching between a switching-off magnet 16 and a switching-on magnet 17 to directly drive a linkage fixing piece 9 to move leftwards or rightwards, so that an electric contact assembly 90 in each vacuum bubble is closed or separated, and the fast switching effect is realized.
As shown in fig. 7, the opening/closing switching device 80 includes a dc electromagnet 18, an opening magnet 16, a closing magnet 17, and an opening/closing switching control circuit 19, where the dc electromagnet 18 is fixed on the linkage rod 10 and located between the opening magnet 16 and the closing magnet 17, and the dc electromagnet 18 is electrically connected to the opening/closing switching control circuit 19; the closing magnet 17 and the opening magnet 16 are both made of E-shaped soft magnetic materials, wherein protruding parts on two sides of the closing magnet 17 are S poles, protruding parts in the middle are N poles, protruding parts on two sides of the opening magnet 16 are N poles, protruding parts in the middle are S poles, and the direct current electromagnet 18 is located between the closing magnet 17 and the opening magnet 16. By positively powering on the middle direct current electromagnet 18, the magnetism of the direct current electromagnet 18 is changed, attractive force is generated with the switching-on magnet 17 at the upper end, repulsive force is generated with the switching-off magnet 16 at the lower end, and the switching-on magnet 17 at the upper end is rapidly closed, so that the requirement of rapid switching-on is met; by reversely energizing the intermediate dc electromagnet 18, the dc electromagnet 18 changes its magnetism, generates a repulsive force with the upper switching-on coil (21), generates an attractive force with the lower switching-off coil (22), and rapidly closes with the lower switching-off magnet 16, thereby realizing a rapid switching function. When the direct current electromagnet 18 is continuously electrified, the direct current electromagnet 18 is permanently attracted to or permanently repelled from the magnet, so that the function of replacing the permanent magnet is realized.
As shown in fig. 8, the switching device 80 for switching on and off is another embodiment, the switching device 80 for switching on and off includes a switch-on coil 21, an intermediate magnet 24, a switch-off coil 22 and a switching-on/off switching control circuit 19, wherein the switch-on coil 21 and the switch-off coil 22 each include an E-shaped soft magnetic material and a coil disposed on the E-shaped soft magnetic material, the coil is electrically connected with the switching-on/off switching control circuit 19, the intermediate magnet 24 includes an intermediate soft magnetic material, and six permanent magnets fixed on the upper and lower groups of the intermediate soft magnetic material, and the two groups of six permanent magnets are respectively adjacent to the switch-on coil 21 and the switch-off coil 22; when the upper and lower end closing coils 21 and the opening coils 22 are electrified to form magnets, the middle magnet (such as a permanent magnet) is attracted upwards by the upper end attractive force or the lower end repulsive force, or the middle magnet is attracted downwards by the upper end repulsive force or the lower end attractive force, so that the function of rapidly switching the power supply is achieved, and six permanent magnets are inlaid in the middle soft magnetic material, so that the middle soft magnetic material keeps attracting with the coils, and the permanent closing is ensured.
Claims (5)
1. The double-power-supply fast switching switch is characterized by comprising an upper incoming line row (51), an upper vacuum bubble (11), a lower vacuum bubble (12), a lower incoming line row (52), a wire outlet row (41), a linkage device (70) and a switching-on/off switching device (80), wherein a vacuum arc-extinguishing chamber (3) is arranged in the upper vacuum bubble (11) and the lower vacuum bubble (12), an electric contact assembly (90) is arranged in the vacuum arc-extinguishing chamber (3), the upper incoming line row (51) and the lower incoming line row (52) are respectively electrically connected with the upper incoming line row (51) and the lower incoming line row (52) through the electric contact assembly (90) in the upper vacuum bubble (11) and the lower vacuum bubble (12), the linkage device (70) is connected with the electric contact assembly (90) in the upper vacuum bubble (11) and the lower vacuum bubble (12), and the switching-off switching-on/off switching device (80) is connected with the linkage device (70);
the switching device (80) comprises a switching coil (21), a middle magnet (24), a switching coil (22) and a switching control circuit (19), wherein the switching coil (21) and the switching coil (22) comprise E-shaped structure soft magnetic materials and coils arranged on the E-shaped structure soft magnetic materials, the coils are electrically connected with the switching control circuit (19), the middle magnet (24) comprises a middle soft magnetic material and an upper permanent magnet and a lower permanent magnet which are fixed on the middle soft magnetic material, and the two permanent magnets are respectively close to the switching coil (21) and the switching coil (22);
the brake-off and brake-on device is characterized by further comprising a brake-on and brake-off maintaining device (60), wherein the brake-on and brake-off maintaining device (60) comprises a brake-on and brake-off maintaining permanent magnet (13), a brake-on maintaining permanent magnet (14) and an armature (15), and the armature (15) is fixed on the linkage pull rod (10) and is positioned between the brake-on and brake-off maintaining permanent magnet (13) and the brake-on maintaining permanent magnet (14);
the opening and closing holding device (60) and the opening and closing switching device (80) are respectively positioned at one side of the upper vacuum bubble (11) and one side of the lower vacuum bubble (12);
the linkage device (70) comprises an insulating pull rod (8), a linkage fixing piece (9), a linkage pull rod (10) and a rubber shock pad (20), wherein two ends of the insulating pull rod (8) are respectively connected with an upper vacuum bubble (11) and an electric contact assembly (90) in a lower vacuum bubble (12), the linkage fixing piece (9) is connected with a switching-on/off switching device (80) through the linkage pull rod (10), and the rubber shock pad (20) is fixed on the linkage fixing piece (9);
the electrical contact assembly (90) comprises a moving contact (4) and a fixed contact (2), the fixed contact (2) is electrically connected with the upper incoming line row (51), the moving contact (4) is electrically connected with the outgoing line row (41), and the moving contact (4) is also connected with the insulation pull rod (8);
the outer walls of the upper vacuum bubble (11) and the lower vacuum bubble (12) are porcelain sleeves (6), and the movable contact (4) is connected with the insulating pull rod (8) through the corrugated pipe (7).
2. The dual-power quick switching switch according to claim 1, wherein the switching device (80) comprises a direct-current electromagnet (18), a switching-off magnet (16), a switching-on magnet (17) and a switching-off switching control circuit (19), the direct-current electromagnet (18) is fixed on the linkage pull rod (10) and is located between the switching-off magnet (16) and the switching-on magnet (17), and the direct-current electromagnet (18) is electrically connected with the switching-off switching control circuit (19).
3. The dual-power quick switching switch according to claim 2, wherein the closing magnet (17) and the opening magnet (16) are both made of E-shaped soft magnetic materials, wherein protruding portions on two sides of the closing magnet (17) are S poles, protruding portions in the middle are N poles, protruding portions on two sides of the opening magnet (16) are N poles, protruding portions in the middle are S poles, and the direct-current electromagnet (18) is located between the closing magnet (17) and the opening magnet (16).
4. The dual-power fast switching switch as claimed in claim 1, wherein the upper inlet wire row (51) and the lower inlet wire row (52) are respectively three-phase power input ends of an upper group and a lower group, the outlet wire row (41) is a three-phase power output end, the three-phase power input ends of the upper group and the lower group are respectively connected with three upper vacuum bubbles (11) and three lower vacuum bubbles (12) which are respectively corresponding, and each phase power output end of the three-phase power output end is connected with one upper vacuum bubble (11) and one lower vacuum bubble (12) which are corresponding.
5. The dual-power quick on-off switch according to claim 4, wherein the three upper vacuum bubbles (11) and the three lower vacuum bubbles (12) are arranged in parallel in two upper and lower or left and right rows of three vacuum bubbles each, or in two upper and lower rows of three vacuum bubbles each arranged in a delta shape.
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| CN201710056739.8A CN106712278B (en) | 2017-01-25 | 2017-01-25 | Dual-power supply fast switching switch |
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| CN106712278A (en) | 2017-05-24 |
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