CN114121514A - Ultra-fast dual-power switching mechanism and switching method - Google Patents
Ultra-fast dual-power switching mechanism and switching method Download PDFInfo
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- CN114121514A CN114121514A CN202111414576.9A CN202111414576A CN114121514A CN 114121514 A CN114121514 A CN 114121514A CN 202111414576 A CN202111414576 A CN 202111414576A CN 114121514 A CN114121514 A CN 114121514A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000001514 detection method Methods 0.000 claims description 20
- 230000009977 dual effect Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
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- 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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an ultra-fast dual-power switching mechanism and a switching method, wherein the mechanism comprises a low-voltage direct-current electromagnet, a high-voltage direct-current electromagnet and a gear and rack mechanism; the gear and rack mechanism comprises a gear, a high-voltage direct-current rack and a low-voltage direct-current rack, and the gear is positioned between the high-voltage direct-current rack and the low-voltage direct-current rack; the low-voltage direct current electromagnet comprises a low-voltage left mounting seat, a low-voltage right mounting seat and a low-voltage left sliding iron core and a low-voltage right sliding iron core; the low-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the low-voltage left mounting seat and the low-voltage right mounting seat; the high-voltage direct-current electromagnet comprises a high-voltage left mounting seat, a high-voltage right mounting seat, a high-voltage left sliding iron core and a high-voltage right sliding iron core; the high-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the high-voltage left mounting seat and the high-voltage right mounting seat; the periphery of the sliding iron core of the low and high voltage direct current electromagnets is provided with a coil. The invention accelerates by the high-voltage direct-current electromagnet, closes the circuit by the low-voltage direct-current electromagnet, and achieves the purpose of quickly and accurately performing circuit conversion. Power switching can be achieved within milliseconds.
Description
Technical Field
The invention relates to a double-power switching mechanism and a switching method, in particular to an ultra-fast double-power switching mechanism and a switching method which can accelerate through a high-voltage direct-current electromagnet and close a circuit through a low-voltage direct-current electromagnet to achieve fast and accurate circuit switching.
Background
At present, a double-power switch and a direct-current circuit breaker have overlong switching time during circuit switching, so that electric arcs are difficult to extinguish and arc extinguishing is difficult to generate, the switching time of conventionally used motors is in units of seconds, and millisecond switching is difficult to realize. In order to solve the problems of long switching time of a dual-power switch, complex switching device of a motor transmission mechanism and the like, an ultra-fast dual-power switching mechanism is provided.
Disclosure of Invention
In view of the above problems, the present invention provides an ultra-fast dual power switching mechanism and a switching method, which can accelerate the switching operation by a high voltage dc electromagnet and close the circuit by a low voltage dc electromagnet, so as to perform the circuit switching quickly and accurately.
The invention solves the technical problems through the following technical scheme: an ultra-fast dual power switching mechanism, the ultra-fast dual power switching mechanism comprising: a low-voltage direct-current electromagnet, a high-voltage direct-current electromagnet, and a gear and rack mechanism;
the gear and rack mechanism comprises a gear, a high-voltage direct-current rack and a low-voltage direct-current rack, and the gear is positioned between the high-voltage direct-current rack and the low-voltage direct-current rack;
the low-voltage direct current electromagnet comprises a low-voltage left mounting seat, a low-voltage right mounting seat and a low-voltage left sliding iron core and a low-voltage right sliding iron core; the low-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the low-voltage left mounting seat and the low-voltage right mounting seat;
the high-voltage direct-current electromagnet comprises a high-voltage left mounting seat, a high-voltage right mounting seat, a high-voltage left sliding iron core and a high-voltage right sliding iron core; the high-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the high-voltage left mounting seat and the high-voltage right mounting seat;
a first coil is arranged on the periphery of a sliding iron core of the low-voltage direct-current electromagnet, a second coil is arranged on the periphery of a sliding iron core of the high-voltage direct-current electromagnet, and the first coil is supplied with power by low-voltage direct current; the second coil is powered by high-voltage direct current pulses.
In a specific implementation example of the invention, the first coil is supplied with 60V direct current; the second coil is powered by 600V direct current pulses.
In a specific implementation example of the present invention, the ultrafast dual power switching mechanism further includes a power detection circuit board, and the power detection circuit board is provided with a low voltage circuit and a voltage doubling circuit; the low-voltage direct current power supply is from a low-voltage circuit of the line power supply detection plate, and the high-voltage direct current pulse power supply is from a voltage doubling circuit of the line power supply detection plate.
In the specific implementation example of the invention, the bottoms of the low-voltage left and right mounting seats and the high-voltage left and right mounting seats are respectively provided with a conical structural iron core, and the bottoms of the low-voltage left and right sliding iron cores and the high-voltage left and right sliding iron cores are respectively provided with a conical structural iron core matched with the conical structures.
In the embodiment of the invention, a key groove in a semi-cylindrical shape for driving the rotation of the contact system of the dual power supply is formed on the central shaft of the gear.
An ultra-fast dual power switching method comprises the following specific steps:
the first step is as follows: clamping sliding iron cores of two low-voltage direct-current electromagnets with clamping grooves at two ends of a rack, pushing all the sliding iron cores at one end into a fixed iron core base of the electromagnet, fixing a gear in the middle of the rack by only 1/3-1/4 of the sliding iron cores at the other end in the fixed iron core base of the electromagnet, and pulling an iron core gear of the electromagnet to rotate back and forth by hands;
the second step is that: clamping two sliding iron cores of the high-voltage direct-current electromagnet with clamping grooves at two ends of a rack, pushing all the sliding iron cores at one end into a fixed iron core base of the electromagnet, fixing a gear in the middle of the rack by only 1/3-1/4 of the sliding iron cores at the other end in the fixed iron core base of the electromagnet, and pulling an iron core gear of the electromagnet to rotate back and forth by hands;
the third step: the sliding iron core is pulled at the upper left and the lower right, and the gear rotates anticlockwise; the lower left part and the upper right part push the sliding iron core gear to rotate clockwise; the upper and lower racks are aligned with the central line of the gear;
the fourth step: the power supply detection circuit board is designed, a transformer is adopted to change 220V voltage into 36V alternating current, then the alternating current is changed into direct current, and the voltage is changed into 60V direct current; the voltage of the 60V direct current power supply is increased to 600V direct current by the two other power supplies through the voltage multiplication circuit;
the fifth step: the detection circuit board for the dual-power supply detects that one path of power supply is lost and is rapidly switched to the other path of power supply, the switching time is 3-5 milliseconds, the dual-power supply detection board detects that one side of the power supply supplies power to the electromagnet after the power supply is subjected to vector voltage, the sliding iron core movement is realized to drive the rack to move, the rack drives the gear to rotate, the gear drives the moving contact system, and ultra-fast switching is realized.
The positive progress effects of the invention are as follows: according to the ultra-fast dual-power switching mechanism provided by the invention, the high-voltage direct-current electromagnet is used for accelerating, the low-voltage direct-current electromagnet is used for closing a circuit, the circuit switching is rapidly and accurately carried out, and the power switching can be carried out within millisecond time.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of an electromagnet base according to the present invention.
Fig. 3 is a schematic structural view of a high-and low-voltage sliding core according to the present invention.
Fig. 4-1 is a schematic view of the structure of the electromagnetic coil installed inside the electromagnet base according to the present invention.
Fig. 4-2 is a left side view of fig. 4-1.
Fig. 4-3 is a right side view of fig. 4-1.
FIG. 5 shows the operation of the upper left, lower right and lower middle electromagnets of the present invention, with the gears rotating and the keyways rotating to a semicircular upward orientation.
FIG. 6 shows the middle, lower left, right, upper electromagnet actuation, gear rotation, and keyway rotation to a semi-circle downward orientation, in accordance with the present invention.
The following are the names corresponding to the reference numbers in the invention:
the low-voltage direct current electromagnet 100, the high-voltage direct current electromagnet 200 and the gear and rack mechanism 300;
a gear 301, a high-voltage direct-current rack 302, a low-voltage direct-current rack 303 and a key slot 304;
low-pressure left and right mounting bases 101;
low-voltage left and right sliding cores 102;
high-pressure left and right mounting bases 201;
high-voltage left and right sliding cores 202;
a first coil 400, a cone-structured iron core 500.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic view of an overall structure of the present invention, fig. 2 is a schematic view of a base of an electromagnet of the present invention, and fig. 3 is a schematic view of a high-and low-voltage sliding core of the present invention. As shown in fig. 1-3, the present invention provides an ultra-fast dual power switching mechanism, which includes: low-voltage DC electromagnet 100, high-voltage DC electromagnet 200, and gear and rack mechanism 300.
The gear and rack mechanism comprises a gear 301, a high voltage direct current rack 302 and a low voltage direct current rack 303, wherein the gear 301 is positioned between the high voltage direct current rack 301 and the low voltage direct current rack 303.
The low-voltage direct current electromagnet 100 comprises a low-voltage left and right mounting base 101 and a low-voltage left and right sliding iron core 102; the low-voltage left and right sliding cores 102 are installed in the low-voltage left and right mounting seats 101, respectively.
The high-voltage direct-current electromagnet 200 comprises a high-voltage left mounting seat 201, a high-voltage right mounting seat 201 and a high-voltage left sliding iron core 202; the high-voltage left and low-voltage right sliding iron cores 202 are respectively installed in the high-voltage left and right installation seats 201.
Fig. 4-1 is a schematic view showing a structure of an electromagnetic coil installed inside an electromagnet base according to the present invention, fig. 4-2 is a left side view of fig. 4-1, and fig. 4-3 is a right side view of fig. 4-1. As shown in the above figures: a first coil 400 is arranged on the periphery of a sliding iron core of the low-voltage direct-current electromagnet, a second coil is arranged on the periphery of a sliding iron core of the high-voltage direct-current electromagnet, and the first coil is supplied with power by low-voltage direct current; the second coil is powered by high-voltage direct current pulses. In a specific implementation process, the first coil is supplied with 60V direct current; the second coil is powered by 600V direct current pulses. In the specific implementation process, the electromagnetic coil arranged in the electromagnet base adopts more than 2000 turns of enameled wires with the diameter of 0.21 mm.
The ultra-fast dual-power switching mechanism further comprises a power detection circuit board, wherein a low-voltage circuit and a voltage doubling circuit are arranged on the power detection circuit board; the low-voltage direct current power supply is from a low-voltage circuit of the line power supply detection plate, and the high-voltage direct current pulse power supply is from a voltage doubling circuit of the line power supply detection plate.
The low voltage left and right sliding cores 102 can be placed in the cavities of the low voltage left and right mounting bases 101, and when current passes through the coil of the electromagnet, the low voltage left and right sliding cores 102 are attracted by electromagnetic force to coincide with the cores of the electromagnet base.
The joints at the two ends of the rack are respectively connected with the low-voltage left and right sliding iron cores 102 at the two ends, wherein the tops of the low-voltage left and right sliding iron cores 102 can be clamped into the two ends of the rack.
A semi-cylinder is arranged in the center of the gear, and the semi-cylinder is used as a key groove of the transmission mechanism to drive other mechanisms to rotate.
The conical iron core is directly riveted at the center of the electromagnet base. The sliding iron core can slide on the inner surface of the cavity, and the bottom of the sliding iron core is superposed with the conical iron core surface.
Two low-voltage DC electromagnets are provided with a base of a coil, two iron cores which can freely slide in the electromagnet cavity, and a rack.
Two high-voltage direct-current electromagnets are provided with bases with coils, two iron cores capable of freely sliding in the electromagnet cavities, and a rack.
Fig. 2 is a schematic structural diagram of an electromagnet base according to the present invention. Referring to fig. 2, the low-voltage left and right mounting seats 101 and the high-voltage left and right mounting seats 201 are provided at the bottom thereof with a cone-shaped iron core 500, and the low-voltage left and right sliding iron cores and the high-voltage left and right sliding iron cores are provided at the bottom thereof with a cone-shaped structure 600 fitted with the above cone-shaped structures. According to the invention, the bottom of the electromagnet cavity is in a conical design, the bottom of the sliding iron core is in a conical structure matched with the bottom, the electromagnetic attraction is increased at the moment of electrification, and the switching of the dual-power switch is accelerated.
A key groove 304 (see fig. 1, 5 and 6) in a semi-cylindrical shape for transmitting the rotation of the contact system of the dual power supply is formed on the central shaft of the gear 301.
The following is a super-fast dual power switching method, which comprises the following specific steps:
the first step is as follows: the sliding iron cores of the two low-voltage direct-current electromagnets are clamped with clamping grooves at two ends of a rack, the sliding iron cores at one end are all pushed into a fixed iron core base of the electromagnet, and the sliding iron cores at the other end are only 1/3-1/4 in the fixed iron core base of the electromagnet. The gear is fixed in the middle of the rack, and the iron core gear of the electromagnet is pulled by hand to rotate back and forth.
The second step is that: the two sliding iron cores of the high-voltage direct-current electromagnet are clamped with the clamping grooves at two ends of the rack, the sliding iron core at one end is completely pushed into the fixed iron core base of the electromagnet, and only 1/3-1/4 of the sliding iron core at the other end is in the fixed iron core base of the electromagnet. The gear is fixed in the middle of the rack, and the iron core gear of the electromagnet is pulled by hand to rotate back and forth.
The third step: the sliding iron core is pulled at the upper left and the lower right, and the gear rotates anticlockwise. The lower left part and the upper right part push the sliding iron core gear to rotate clockwise; the upper and lower racks are aligned with the central line of the gear.
The fourth step: the power supply is designed by a circuit board, a transformer is adopted to change 220V voltage into 36V alternating current, and then the alternating current is changed into direct current. The voltage was changed to 60V dc. The two other power supplies raise the voltage of the 60V direct current power supply to 600V direct current through the voltage multiplier circuit.
The fifth step: the power supply detection circuit board for detecting the double power supplies detects that one path of power supply loses power supply and quickly switches to the other path of power supply, and the switching time is about 3 milliseconds. After detecting the power loss of voltage, the power supply detection board with the double power supplies power to the electromagnet from the power supply on one side, so that the sliding iron core moves to drive the rack to move, the rack drives the gear to rotate, the gear drives the moving contact system, and ultra-fast switching is achieved.
Fig. 1 is a schematic view of the overall structure of the present invention, fig. 5 is a view showing the middle-left upper and lower-right electromagnet operation of the present invention, the gear rotates, and the key groove 304 rotates to a semicircle upward, and fig. 6 is a view showing the middle-left lower and upper-right electromagnet operation of the present invention, the gear rotates, and the key groove 304 rotates to a semicircle downward. Three different states of the key way 304 are shown in fig. 1, 5 and 6.
The high-voltage direct-current power supply and the low-voltage direct-current power supply are used for supplying power to the two groups of electromagnets, the high-voltage direct-current electromagnet is used for quickly pulling and starting to enable the gear to start to rotate, and the low-voltage direct-current electromagnet is used for pulling the rack to move when the gear is in the rotating process, so that the gear can quickly reach the corresponding position. The application of the high-voltage direct-current electromagnet is equivalent to the function of electronic lubrication.
The two electromagnets are diagonally placed to pull the gear, so that the gear clamped in the electromagnets rotates, and the rotating speed of the gear is higher.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides an ultrafast dual supply switching mechanism which characterized in that: the ultra-fast dual power switching mechanism includes: a low-voltage direct-current electromagnet, a high-voltage direct-current electromagnet, and a gear and rack mechanism;
the gear and rack mechanism comprises a gear, a high-voltage direct-current rack and a low-voltage direct-current rack, and the gear is positioned between the high-voltage direct-current rack and the low-voltage direct-current rack;
the low-voltage direct current electromagnet comprises a low-voltage left mounting seat, a low-voltage right mounting seat and a low-voltage left sliding iron core and a low-voltage right sliding iron core; the low-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the low-voltage left mounting seat and the low-voltage right mounting seat;
the high-voltage direct-current electromagnet comprises a high-voltage left mounting seat, a high-voltage right mounting seat, a high-voltage left sliding iron core and a high-voltage right sliding iron core; the high-voltage left sliding iron core and the low-voltage right sliding iron core are respectively arranged in the high-voltage left mounting seat and the high-voltage right mounting seat;
a first coil is arranged on the periphery of a sliding iron core of the low-voltage direct-current electromagnet, a second coil is arranged on the periphery of a sliding iron core of the high-voltage direct-current electromagnet, and the first coil is supplied with power by low-voltage direct current; the second coil is powered by high-voltage direct current pulses;
the ultra-fast dual-power switching mechanism also comprises a power detection circuit board, and a low-voltage circuit and a voltage doubling circuit are arranged on the power detection circuit board; the low-voltage direct current power supply is from a low-voltage circuit of the line power supply detection plate, and the high-voltage direct current pulse power supply is from a voltage doubling circuit of the line power supply detection plate.
2. The ultra-fast dual-power switching mechanism of claim 1, wherein: the first coil is supplied with 60V direct current; the second coil is powered by 600V direct current pulses.
3. The ultra-fast dual-power switching mechanism of claim 1, wherein: the bottoms of the low-voltage left and right mounting seats and the high-voltage left and right mounting seats are respectively provided with a conical structural iron core, and the bottoms of the low-voltage left and right sliding iron cores and the bottoms of the high-voltage left and right sliding iron cores are respectively provided with a conical structural iron core matched with the conical structures.
4. The ultra-fast dual-power switching mechanism of claim 1, wherein: a key groove in a semi-cylindrical shape for driving the rotation of the dual-power contact system is formed in a central shaft of the gear.
5. An ultra-fast dual power switching method is characterized in that: the switching method comprises the following specific steps:
the first step is as follows: clamping sliding iron cores of two low-voltage direct-current electromagnets with clamping grooves at two ends of a rack, pushing all the sliding iron cores at one end into a fixed iron core base of the electromagnet, fixing a gear in the middle of the rack by only 1/3-1/4 of the sliding iron cores at the other end in the fixed iron core base of the electromagnet, and pulling an iron core gear of the electromagnet to rotate back and forth by hands;
the second step is that: clamping two sliding iron cores of the high-voltage direct-current electromagnet with clamping grooves at two ends of a rack, pushing all the sliding iron cores at one end into a fixed iron core base of the electromagnet, fixing a gear in the middle of the rack by only 1/3-1/4 of the sliding iron cores at the other end in the fixed iron core base of the electromagnet, and pulling an iron core gear of the electromagnet to rotate back and forth by hands;
the third step: the sliding iron core is pulled at the upper left and the lower right, and the gear rotates anticlockwise; the lower left part and the upper right part push the sliding iron core gear to rotate clockwise; the upper and lower racks are aligned with the central line of the gear;
the fourth step: the power supply detection circuit board is designed, a transformer is adopted to change 220V voltage into 36V alternating current, then the alternating current is changed into direct current, and the voltage is changed into 60V direct current; the voltage of the 60V direct current power supply is increased to 600V direct current by the two other power supplies through the voltage multiplication circuit;
the fifth step: the detection circuit board for the dual-power supply detects that one path of power supply is lost and is rapidly switched to the other path of power supply, the switching time is 3-5 milliseconds, the dual-power supply detection board detects that one side of the power supply supplies power to the electromagnet after the power supply is subjected to vector voltage, the sliding iron core movement is realized to drive the rack to move, the rack drives the gear to rotate, the gear drives the moving contact system, and ultra-fast switching is realized.
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| CN202111414576.9A CN114121514B (en) | 2021-11-25 | 2021-11-25 | Ultra-fast dual-power switching mechanism and switching method |
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| CN202111414576.9A CN114121514B (en) | 2021-11-25 | 2021-11-25 | Ultra-fast dual-power switching mechanism and switching method |
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| CN107946103A (en) * | 2017-11-30 | 2018-04-20 | 浙江纪元电气科技股份有限公司 | A kind of two-way grading clutch of permanent magnet mechanism driving |
| CN107887206A (en) * | 2017-12-27 | 2018-04-06 | 黑龙江博瑞特高新技术开发有限公司 | Dual power supply switches operating mechanism and actuating method |
| CN208352159U (en) * | 2018-07-06 | 2019-01-08 | 广州市宝太电子有限公司 | A kind of fixation device of microswitch |
| CN210668153U (en) * | 2019-11-19 | 2020-06-02 | 余姚市华宇电器有限公司 | Opening and closing state indicating structure for three-station electric mechanism |
| DE202020106476U1 (en) * | 2020-11-11 | 2021-02-02 | Yantai Sanshui Electric Co., Ltd. | Automatic changeover switch for double power supply |
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