CN106486808B - The two poles of the earth DC dynamo power supply corrects connecting element and its operating method with polarity - Google Patents
The two poles of the earth DC dynamo power supply corrects connecting element and its operating method with polarity Download PDFInfo
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Abstract
The present invention provides a kind of the two poles of the earth DC dynamo power supply polarity and corrects connecting element and its operating method, and component includes the patch panel of direct current source and DC electric apparatus side and uses plug with what patch panel was used cooperatively；Patch panel corrects unit with DC voltage polarity and is connected to DC dynamo electric wire.The present invention is suitble to take the mode of electricity towards DC dynamo power supply plug wire face, and form is succinct；Convenient for spare, it is not easy dust stratification, it is not easily to fall off, it is easy to maintain；Exchange simultaneously with existing national standard and insert, connect that port is completely incompatible, effectively prevents wrong connecing AC and DC equipment mixed insertion；The two poles of the earth spacing safe and reasonable can satisfy the air insulation requirement of the DC voltage of 400V (± 200V)；It can ensure the polarity order of direct current output, not influenced by system dc polarity reversion, direct current need not also recheck the polarity of each wiring when accessing, and its design is easily achieved, and can greatly save the technical costs and cost of material of production.
Description
Technical Field
The invention relates to the technical field of distribution and power utilization, in particular to a polarity correction plug-in assembly for a two-pole direct current power supply and an operation method thereof.
Background
In recent years, the scale and capacity of the direct current power generation equipment such as photovoltaic power generation equipment and electric vehicles connected to a power grid are gradually increased, and the rapid increase of the direct current link of the power distribution network reflects the vigorous development of new energy resources and reflects the urgent desire of the society for reducing the environmental pollution. With the increase of the number and the capacity of the direct current devices, direct current distribution plays an increasingly important role, direct current household entry will become necessary in the future, direct current household appliances (a rectification circuit is omitted, and the cost is lower) outside the electric automobile can also appear and are directly connected into a direct current power grid to consume electric power generated by a distributed power supply, and therefore the purposes of improving the use efficiency of new energy and reducing the manufacturing cost of electric equipment are achieved.
The direct current is introduced into the home, which means that a future user can reliably take electricity from a special socket or a patch board of a home room or an office by using direct current electric equipment like the current alternating current electric appliance, and the power requirement is met, and the direct current electric appliance is completely incompatible with the existing alternating current plug and socket so as to avoid the danger caused by misconnection, however, a corresponding plugging method and a design scheme are not available at present. Meanwhile, in the case of dc electric devices, particularly dc devices including a dc motor and a storage battery, they are very sensitive to the polarity of the dc voltage, and once the polarity is reversed, they cannot normally operate, resulting in the motor being reversed, the battery being unable to be charged, and possibly causing a destructive result.
In order to solve the problems that after direct current enters a house, electric equipment can reliably and safely get electricity through a direct current power panel and the wrong and wrong connection of alternating current and direct current plug-in equipment is avoided, a plug-in unit or a method for a two-pole direct current power supply with a polarity correction function is urgently needed.
Disclosure of Invention
In view of the above, the polarity correction plug-in assembly for the two-pole direct current power supply and the operation method thereof provided by the invention effectively avoid mixed plug-in of alternating current equipment and direct current equipment; the polarity of each connection wire does not need to be checked when the direct current is connected.
The purpose of the invention is realized by the following technical scheme:
a polarity correction plugging component for a two-pole direct current power supply comprises a plugging line panel positioned on the direct current power supply side and a power utilization plug positioned on the direct current electrical appliance side and matched with the plugging line panel for use;
the patch cord panel is connected to the direct current power wire by a direct current voltage polarity correction unit;
the power consumption plug is connected with a power line of the direct current electric appliance.
Preferably, the electric plug comprises a plug body and two conductive blades extending from the working end of the plug body;
the two conductive inserting pieces are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to be conveniently inserted by an electric plug; the bottom surfaces of the two conductive insertion pieces are parallel to the end surface of the working end of the plug body;
the connecting end of the plug body is connected with the direct current electric appliance power line;
preferably, the geometric center distance between the two conductive insertion pieces is 1.3-1.8 times of the geometric center distance between the national standard alternating current two-phase insertion pieces.
Preferably, the patch cord panel comprises a rectangular panel and a rectangular groove arranged at the connecting end of the rectangular panel;
a direct-current voltage polarity correction unit is arranged in the rectangular groove; the direct-current voltage polarity correction unit is connected to the direct-current power wire;
the working end of the rectangular panel is provided with a jack matched with the electric plug for use;
the patch cord panel is arranged on the panel box, and the panel box is arranged on a wall or the ground.
Preferably, the dc voltage polarity correction unit includes a dc input terminal, a fixed polarity output terminal, an electromagnetic switch, and a first coaxial turntable, an electromagnetic driving unit, and a second coaxial turntable connected in sequence; the direct current input end comprises a first input terminal and a second input terminal, and the fixed polarity output end comprises a positive output interface and a negative output interface;
the first input terminal is connected with the output end of the electromagnetic driving unit;
one branch of the second input terminal is connected with the input end of the electromagnetic driving unit after being connected with the voltage limiting resistor R1, one branch is connected with the voltage limiting resistor R1 and then is connected with the first coaxial turntable in a sliding mode, and the other branch is connected with the second coaxial turntable in a sliding mode;
the fixed polarity output end is connected with the second coaxial turntable in a sliding manner;
a fixed contact piece of the electromagnetic switch is arranged on a connecting wire between the voltage limiting resistor R1 and the input end of the electromagnetic driving unit, and when the movable contact piece and the fixed contact piece of the electromagnetic switch are closed, the connecting wire is electrically communicated;
the electromagnetic drive unit comprises a coil arranged in a fixed magnetic field; the input end of the coil is connected with the middle shaft of the first coaxial turntable through a coaxial connector, and the output end of the coil is also connected with the middle shaft of the second coaxial turntable through a coaxial connector;
the first coaxial turntable and the second coaxial turntable are both provided with conductive parts; the conductive component is used for being connected with the second input terminal in a sliding mode.
Preferably, after the positive output interface is slidably connected with the second coaxial turntable, one branch is connected with the input end of the electromagnetic switch, and the other branch outputs a positive voltage;
after the negative output interface is connected with the second coaxial turntable in a sliding mode, one branch is connected with the input end of the electromagnetic switch, and the other branch outputs negative voltage.
Preferably, one side of the positive output interface connected with the second coaxial turntable comprises a first terminal and a second terminal; one side of the negative output interface, which is connected with the second coaxial turntable, comprises a third terminal; the second coaxial turntable comprises two fixed contacts;
the distance between the two fixed contacts, the distance between the first terminal and the third terminal, and the distance between the second terminal and the third terminal are equal, so that the fixed contacts are respectively connected with the first terminal and the third terminal after the second coaxial turntable is turned over, or the fixed contacts are respectively connected with the second terminal and the third terminal.
Preferably, a voltage limiting resistor R2 is connected between the positive output interface and the electromagnetic switch; and a diode is connected between the negative output interface and the electromagnetic switch, the anode of the diode is connected with the negative output interface, and the cathode of the diode is connected with the electromagnetic switch.
A method of operating a polarity correcting plug assembly for a two pole dc power supply, the method comprising the steps of:
step 1, connecting the positive and negative poles of a direct current power supply to an input terminal of a direct current voltage polarity correction unit, and outputting voltages with fixed polarity sequences at an output port of the direct current voltage polarity correction unit;
step 2, respectively connecting the direct current two poles of the direct current voltage polarity correction unit outputting fixed voltage polarity to corresponding socket terminals on a direct current plug wire panel, and outputting direct current voltage through a plug spring piece connected with the socket terminals; the direct current plug wire panel is matched with the electric plug for use; the two conductive inserting pieces are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to be conveniently inserted by an electric plug; the bottom surfaces of the two conductive insertion pieces are parallel to the end surface of the working end of the plug body;
step 3, the conductive insert pieces at two poles of the electric plug are connected with the inserting spring pieces in the direct current inserting line panel by being inserted into the inserting holes of the direct current inserting line panel, and direct current voltage at two poles is introduced into the conductive insert pieces according to a fixed sequence;
and 4, the two poles of the power utilization plug are respectively connected with the two poles of a direct current power line of the direct current load according to a fixed connection sequence, and the direct current power is connected to the direct current load.
The invention provides a polarity correction plugging component for a two-pole direct current power supply and an operation method thereof, wherein the component comprises a plugging line panel at the direct current power supply side and a power plug at the direct current electrical appliance side and matched with the plugging line panel for use; the patch panel is connected to the DC power line with a DC voltage polarity correction unit. The invention is suitable for the mode of taking electricity by facing to the plug wire surface of the direct current power supply, and the form is simple; the device is convenient to reserve, is not easy to accumulate dust, fall off and maintain; meanwhile, the method is completely incompatible with the existing national standard alternating current plug-in and connection ports, thereby effectively avoiding the wrong mixed plug-in of alternating current equipment and direct current equipment; the distance between the two electrodes is safe and reasonable, and the air insulation requirement of 400V (+/-200V) direct current voltage can be met; the polarity sequence of the direct current output can be ensured, the influence of the direct current polarity inversion of the system is avoided, the polarity of each connection wire does not need to be checked during direct current access, the design is easy to realize, and the technical cost and the raw material cost of production can be greatly saved.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
1. the technical scheme provided by the invention is suitable for a direct-current power supply plug-in surface electricity taking mode, fully utilizes the advantages of the existing national standard alternating-current two-phase plug-in mode, is convenient to reserve, is not easy to accumulate dust, is not easy to fall off and is easy to maintain.
2. The technical scheme provided by the invention is completely incompatible with the existing national standard alternating current plug-in and connection port, and effectively avoids the wrong mixed plug-in of alternating current equipment and direct current equipment.
3. According to the technical scheme provided by the invention, the novel plug board and plug are simple in plug-in mode, the reverse connection of the positive electrode and the negative electrode is avoided, and the form is beautiful.
4. The technical scheme provided by the invention has safe and reasonable distance between two poles, and can meet the air insulation requirement of 400V (+/-200V) direct current voltage.
5. The technical scheme provided by the invention is easier to realize based on the design of the existing national standard product, and can greatly save the technical cost and the raw material cost of production.
6. According to the technical scheme provided by the invention, the arrangement of the direct-current voltage polarity correction unit can ensure the polarity sequence of direct-current output without being influenced by the direct-current polarity inversion of a system, and the polarity of each wiring does not need to be checked when direct current is accessed; the standby power consumption is avoided, and after the polarity control outputs the specified polarity sequence, the control loop can automatically cut off and quit without continuously consuming electric energy; avoiding the relay to directly control the load loop, reducing the capacity and voltage-withstanding requirements of the relay, and being beneficial to reducing the unit manufacturing cost
7. The technical scheme provided by the invention has wide application and obvious social benefit and economic benefit.
Drawings
FIG. 1 is a block diagram of a polarity correction plug assembly for a two pole DC power supply of the present invention;
FIG. 2 is a schematic view of the power utilization plug of the plug assembly of the present invention;
FIG. 3 is a schematic view of the distance between blades of the power plug of the plug assembly of the present invention;
FIG. 4 is a schematic structural diagram of a DC voltage polarity correction unit in the plug assembly of the present invention;
FIG. 5 is a flow chart illustrating a method of operating the DC voltage polarity correction unit in the plug assembly of the present invention;
fig. 6 is a flow chart illustrating a method of operating the plug assembly of the present invention.
101-a first input terminal; 102-a second input terminal; 103-inserting a spring piece at the first output end; 104-a spring piece is inserted into the second output end; 2-voltage limiting resistor R1; 3-an electromagnetic drive unit; 401-a first coaxial carousel; 402-a second coaxial carousel; 501-moving contact piece of electromagnetic switch; 502-fixed contact of electromagnetic switch; 601-a first terminal; 602-a second terminal; 603-a third terminal; 604-voltage limiting resistor R2; 605-a diode; 7-a wire; 8-patch cord panel, 9-power plug, 11-voltage polarity correction unit, 12-direct current power wire, 13-direct current electrical appliance power wire, 14-plug body, 15-conductive plug sheet, 16-rectangular panel and 17-rectangular groove.
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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides a polarity correction plug-in assembly for a two-pole dc power supply, which comprises a plug-in line panel 8 located at the side of a dc power supply and a power plug 9 located at the side of a dc electrical appliance and used in cooperation with the plug-in line panel 8;
the patch panel 8 is connected to the direct current power line 12 with the direct current voltage polarity correction unit 11;
the power plug 9 is connected with a direct current electrical appliance power line 13.
As shown in fig. 2 and 3, the power plug 9 includes a plug body 14 and two conductive blades 15 extending from a working end of the plug body 14;
the two conductive inserting pieces are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to be conveniently inserted by an electric plug; the bottom surfaces of the two conductive insertion pieces 15 are parallel to the end surface of the working end of the plug body 14;
the connecting end of the plug body 14 is connected with a direct current electrical appliance power line 13;
the geometric center distance between the two conductive inserting pieces 15 is 1.3-1.8 times of the geometric center distance between the national standard alternating current two-phase inserting pieces.
The patch cord panel 8 comprises a rectangular panel 16 and a rectangular groove 17 arranged at the connecting end of the rectangular panel 16;
a direct current voltage polarity correction unit 11 is arranged in the rectangular groove 17; the dc voltage polarity correction unit 11 is connected to the dc power line 12;
the working end of the rectangular panel 16 is provided with a jack matched with the electric plug 9;
the patch cord panel 8 is arranged on a panel box mounted on a wall or floor.
As shown in fig. 4, the embodiment of the dc voltage polarity correction unit 11 specifically includes:
the dc voltage polarity correction unit 11 includes a dc input terminal, a fixed polarity output terminal, an electromagnetic switch, a first coaxial turntable 401, an electromagnetic drive unit 3, and a second coaxial turntable 402, where the first coaxial turntable 401, the electromagnetic drive unit 3, and the second coaxial turntable 402 are connected in sequence.
1. DC input terminal
Comprising a first input terminal 101 and a second input terminal 102. Wherein,
①, the first input terminal 101 is connected with the output end of the electromagnetic drive unit 3;
②, one branch of the second input terminal 102 is connected with the input end of the electromagnetic drive unit 3 after being connected with the voltage limiting resistor R12, one branch is connected with the voltage limiting resistor R12 and then is connected with the first coaxial turntable 401 in a sliding way, and the other branch is connected with the second coaxial turntable 402 in a sliding way.
A fixed contact piece 502 of the electromagnetic switch is arranged on a connecting wire 7 between the voltage limiting resistor R12 and the input end of the electromagnetic driving unit 3, and when the movable contact piece 501 of the electromagnetic switch is closed with the fixed contact piece, the connecting wire 7 is electrically connected.
The first coaxial turntable 401 and the second coaxial turntable 402 are each provided with a conductive member for sliding connection with the second input terminal 102.
2. Fixed polarity output
The fixed polarity output is slidably connected to the second coaxial turntable 402 and includes a positive output interface and a negative output interface.
① positive output interface
After the positive output interface is slidably connected to the second coaxial turntable 402, one branch is connected to the input terminal of the electromagnetic switch, and the other branch outputs a positive voltage. Wherein,
one side of the positive output interface connected with the second coaxial turntable 402 comprises a first terminal 601 and a second terminal 602, and a voltage limiting resistor R2604 is connected between the positive output interface and the electromagnetic switch.
② negative output interface
After the negative output interface is slidably connected to the second coaxial turntable 402, one branch is connected to the input terminal of the electromagnetic switch, and the other branch outputs a negative voltage. Wherein,
the side of the negative output interface connected to the second coaxial turntable 402 comprises a third terminal 603, a diode 605 is connected between the negative output interface and the electromagnetic switch, the anode of the diode 605 is connected to the negative output interface, and the cathode is connected to the electromagnetic switch.
The second coaxial turntable 402 comprises two fixed contacts, and the distance between the two fixed contacts, the distance between the first terminal 601 and the third terminal 603, and the distance between the second terminal 602 and the third terminal 603 are all equal, so as to ensure that the fixed contacts are respectively connected with the first terminal 601 and the third terminal 603 after the second coaxial turntable 402 is turned over, or the fixed contacts are respectively connected with the second terminal 602 and the third terminal 603.
3. Electromagnetic drive unit 3
The electromagnetic drive unit 3 includes a coil disposed in a fixed magnetic field; the input end of the coil is connected with the central axis of the first coaxial turntable 401 through a coaxial connector, and the output end of the coil is also connected with the central axis of the second coaxial turntable 402 through a coaxial connector.
In this embodiment, the electromagnetic driving unit 3 is a dc motor.
As shown in fig. 5, the operation flow of the dc voltage polarity correction unit 11 in the embodiment of the present invention specifically includes:
1. and the direct-current power distribution network is connected to the direct-current input end of the direct-current voltage polarity correction unit 11, and the direct-current load is connected to the fixed polarity output end.
2. Analyze whether the fixed polarity output is connected to the second coaxial turntable 402:
(1) if the direct current polarity is the same as the expected direct current polarity of the fixed polarity output end, judging whether the direct current polarity of the direct current distribution network connected to the direct current input end is the same as the expected direct current polarity of the fixed polarity output end:
if the dc polarity is the same as the desired dc polarity, the first input terminal 101 is connected to the output end of the electromagnetic drive unit 3, and the second input terminal 102 is slidably connected to the second coaxial turntable 402 to supply power to the dc load.
If the dc polarity is different from the desired dc polarity, the diode 605 in the fixed polarity output terminal connected to the negative output interface is turned on, and the electromagnetic switch is turned on; after the electromagnetic switch is closed, the voltage limiting resistor R12 is electrically connected to the connection wire 7 between the input terminals of the electromagnetic driving unit 3, and the electromagnetic driving unit 3 drives the second coaxial turntable 402 to turn over, so that the dc polarity at the dc input terminal is inverted.
When the electromagnetic driving unit 3 drives the second coaxial turntable 402 to turn over, so that the diode 605 is turned off after the dc polarity of the dc input terminal is inverted, the electromagnetic switch is also turned off, so that the first input terminal 101 is connected to the output terminal of the electromagnetic driving unit 3, and the second input terminal 102 is slidably connected to the second coaxial turntable 402 to supply power to the dc load.
(2) If the direct current input end is not connected with the second coaxial turntable 402, the first input terminal 101 of the direct current input end, the electromagnetic driving unit 3, the first coaxial turntable 401 and the voltage limiting resistor R12 form a power supply loop, and a coil of the electromagnetic driving unit 3 deflects according to the polarity of the direct current input end, so that the fixed polarity output end is connected with the second coaxial turntable 402;
after the coil deflects, the conductive part of the first coaxial turntable 401 is separated from the conductive scribing sheet on the connecting lead 7, and the power supply loop is disconnected; the connecting lead 7 is the connecting lead 7 between the voltage limiting resistor R12 and the input end of the electromagnetic driving unit 3; the first input terminal 101 is connected to the output of the electromagnetic driving unit 3, and the second input terminal 102 is slidably connected to the second coaxial turntable 402, and the fixed polarity output outputs the desired polarity sequence, that is, the first input terminal 101 and the lead 7, and the second input terminal 102 and the lead 7 supply power to the second coaxial turntable 402, so that the fixed polarity output outputs the desired polarity sequence to supply power to the dc load.
As shown in fig. 6, the present invention provides a method for operating a polarity correction plug-in module for a two-pole dc power supply, the method comprising the steps of:
step 1, connecting the positive and negative poles of a direct current power supply to an input terminal of a direct current voltage polarity correction unit 11, and outputting voltages with fixed polarity sequences at an output port of the direct current voltage polarity correction unit 11;
step 2, respectively connecting the direct current two poles of the direct current voltage polarity correction unit 11, which output fixed voltage polarity, to corresponding socket terminals on a direct current plug wire panel, and outputting direct current voltage through a plug spring piece 103 or 104 connected with the socket terminals; the direct current patch cord panel is matched with the electric plug 9 for use; the two conductive inserting pieces 15 of the electric plug 9 are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to facilitate the insertion of the electric plug; the bottom surfaces of the two conductive insertion pieces 15 are parallel to the end surface of the working end of the plug body 14;
step 3, the two-pole conductive insert 15 of the power utilization plug 9 is connected with the insert spring piece 103 or 104 in the direct-current plug wire panel by being inserted into the jack of the direct-current plug wire panel, and direct-current two-pole voltage is introduced into the conductive insert 15 according to a fixed sequence;
and 4, respectively connecting the two poles of the two-pole conductive inserting sheet 15 of the power plug 9 with the two poles of a direct current power line of the direct current load according to a fixed connection sequence, and connecting the direct current power source into the direct current load.
Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can make modifications and equivalents to the embodiments of the present invention without departing from the spirit and scope of the present invention, which is set forth in the claims of the present application.
Claims (6)
1. A polarity correction plugging component for a two-pole direct current power supply is characterized by comprising a plugging line panel positioned on the direct current power supply side and a power utilization plug positioned on the direct current electric appliance side and matched with the plugging line panel for use;
the patch cord panel is connected to the direct current power wire by a direct current voltage polarity correction unit;
the power utilization plug is connected with a power line of the direct current electric appliance;
the power consumption plug comprises a plug body and two conductive insertion pieces extending out of the working end of the plug body;
the two conductive inserting pieces are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to be conveniently inserted by an electric plug;
the bottom surfaces of the two conductive insertion pieces are parallel to the end surface of the working end of the plug body;
the connecting end of the plug body is connected with the direct current electric appliance power line;
the patch cord panel comprises a rectangular panel and a rectangular groove arranged at the connecting end of the rectangular panel;
a direct-current voltage polarity correction unit is arranged in the rectangular groove; the direct-current voltage polarity correction unit is connected to the direct-current power wire;
the working end of the rectangular panel is provided with a jack matched with the electric plug for use;
the patch cord panel is arranged on the panel box, and the panel box is arranged on a wall or the ground;
the direct-current voltage polarity correction unit comprises a direct-current input end, a fixed polarity output end, an electromagnetic switch, and a first coaxial turntable, an electromagnetic driving unit and a second coaxial turntable which are sequentially connected; the direct current input end comprises a first input terminal and a second input terminal, and the fixed polarity output end comprises a positive output interface and a negative output interface;
the first input terminal is connected with the output end of the electromagnetic driving unit;
one branch of the second input terminal is connected with the input end of the electromagnetic driving unit after being connected with the voltage limiting resistor R1, one branch is connected with the voltage limiting resistor R1 and then is connected with the first coaxial turntable in a sliding mode, and the other branch is connected with the second coaxial turntable in a sliding mode;
the fixed polarity output end is connected with the second coaxial turntable in a sliding manner;
a fixed contact piece of the electromagnetic switch is arranged on a connecting wire between the voltage limiting resistor R1 and the input end of the electromagnetic driving unit, and when the movable contact piece and the fixed contact piece of the electromagnetic switch are closed, the connecting wire is electrically communicated;
the electromagnetic drive unit comprises a coil arranged in a fixed magnetic field; the input end of the coil is connected with the middle shaft of the first coaxial turntable through a coaxial connector, and the output end of the coil is also connected with the middle shaft of the second coaxial turntable through a coaxial connector;
the first coaxial turntable and the second coaxial turntable are both provided with conductive parts; the conductive component is used for being connected with the second input terminal in a sliding mode.
2. The assembly of claim 1, wherein the geometric center distance between the two conductive tabs is 1.3 to 1.8 times the geometric center distance between a national standard ac two-phase tab.
3. The assembly of claim 1, wherein after the positive output interface is slidably connected to the second coaxial turntable, one branch is connected to the input terminal of the electromagnetic switch, and the other branch outputs a positive voltage;
after the negative output interface is connected with the second coaxial turntable in a sliding mode, one branch is connected with the input end of the electromagnetic switch, and the other branch outputs negative voltage.
4. The assembly of claim 3, wherein the side of the positive output interface connected to the second coaxial turntable comprises a first terminal and a second terminal; one side of the negative output interface, which is connected with the second coaxial turntable, comprises a third terminal; the second coaxial turntable comprises two fixed contacts;
the distance between the two fixed contacts, the distance between the first terminal and the third terminal, and the distance between the second terminal and the third terminal are equal, so that the fixed contacts are respectively connected with the first terminal and the third terminal after the second coaxial turntable is turned over, or the fixed contacts are respectively connected with the second terminal and the third terminal.
5. The assembly of claim 3, wherein a voltage limiting resistor R2 is connected between the positive output interface and the electromagnetic switch; and a diode is connected between the negative output interface and the electromagnetic switch, the anode of the diode is connected with the negative output interface, and the cathode of the diode is connected with the electromagnetic switch.
6. The method of operating a polarity correcting plug assembly for a two pole dc power supply of claim 5, said method comprising the steps of:
step 1, connecting the positive and negative poles of a direct current power supply to an input terminal of a direct current voltage polarity correction unit, and outputting voltages with fixed polarity sequences at an output port of the direct current voltage polarity correction unit;
step 2, respectively connecting the direct current two poles of the direct current voltage polarity correction unit outputting fixed voltage polarity to corresponding socket terminals on a direct current plug wire panel, and outputting direct current voltage through a plug spring piece connected with the socket terminals; the direct current plug wire panel is matched with the electric plug for use; the two conductive inserting pieces are arranged vertically, and the geometric center connecting line of the cross sections of the two conductive inserting pieces is in an inverted T shape so as to be conveniently inserted by an electric plug; the bottom surfaces of the two conductive insertion pieces are parallel to the end surface of the working end of the plug body;
step 3, the two conductive insertion pieces of the power consumption plug are connected with insertion spring pieces in the direct current insertion line panel through insertion holes inserted into the direct current insertion line panel, and direct current two-pole voltage is introduced into the conductive insertion pieces according to a fixed sequence;
and 4, respectively connecting the two conductive insertion sheets of the power utilization plug with two poles of a direct current power line of the direct current load according to a fixed connection sequence, and connecting the direct current power source into the direct current load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544009.3A CN106486808B (en) | 2015-08-28 | 2015-08-28 | The two poles of the earth DC dynamo power supply corrects connecting element and its operating method with polarity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544009.3A CN106486808B (en) | 2015-08-28 | 2015-08-28 | The two poles of the earth DC dynamo power supply corrects connecting element and its operating method with polarity |
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| Publication Number | Publication Date |
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| CN106486808A CN106486808A (en) | 2017-03-08 |
| CN106486808B true CN106486808B (en) | 2019-07-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW517422B (en) * | 2001-05-18 | 2003-01-11 | Palmax Technology Co Ltd | Input protection circuit of hand-held electrical apparatus |
| CN100530887C (en) * | 2005-09-05 | 2009-08-19 | 上海广为电器工具有限公司 | Mechanical reversal connecting device |
| CN201690059U (en) * | 2010-03-16 | 2010-12-29 | 美的集团有限公司 | DC power supply plug and socket |
| CN201868873U (en) * | 2010-07-26 | 2011-06-15 | 宁波市镇海华泰电器厂 | Circuit capable of automatically selecting N line |
| CN203800821U (en) * | 2013-12-11 | 2014-08-27 | 上海航天设备制造总厂 | Power polarity protection circuit |
| CN204290398U (en) * | 2014-12-08 | 2015-04-22 | 上海航天有线电厂有限公司 | A kind of direct current output switch circuit |
| CN204422693U (en) * | 2015-03-20 | 2015-06-24 | 杭州骏杨明科技有限公司 | A kind of UPS or EPS power supply straight-flow system mistake proofing correcting device |
-
2015
- 2015-08-28 CN CN201510544009.3A patent/CN106486808B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106486808A (en) | 2017-03-08 |
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