CN114204358B - Household direct current plug and socket with capacitor and working method - Google Patents
Household direct current plug and socket with capacitor and working method Download PDFInfo
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- CN114204358B CN114204358B CN202111520366.8A CN202111520366A CN114204358B CN 114204358 B CN114204358 B CN 114204358B CN 202111520366 A CN202111520366 A CN 202111520366A CN 114204358 B CN114204358 B CN 114204358B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/6205—Two-part coupling devices held in engagement by a magnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a household direct current plug and socket with a capacitor and a working method thereof, wherein the direct current plug and socket comprises a direct current plug and a direct current socket, the direct current plug and socket comprises a plug and socket shell, four permanent magnets are arranged in the plug and socket shell, two plug pins are arranged in the plug, two spring blocks are arranged at the bottom of the plug shell, two jack holes are arranged in the socket and correspond to the plug pins, connecting contacts are arranged at the inner edges of the jack holes and are respectively connected with an anode, a capacitor, a resistor and a cathode, and two spring devices are arranged in the socket. The invention realizes arcless plugging and unplugging by using the capacitor and realizes the locking and the quick breaking of the plug and the socket by the magnet-spring structure. The invention not only realizes the function of arc-free breaking of the direct current plug and the direct current socket, but also has simple structure and low cost, and can be safely and reliably applied to the household direct current load working scene.
Description
Technical Field
The invention relates to the field of direct current circuit electrical equipment, in particular to a household direct current plug and socket with a capacitor and a working method.
Background
From early television sets, to later dc inverter air conditioners, computers, to today's data centers, there is a need for using dc power. If the power is supplied by the alternating current, the alternating current is required to be converted into the direct current by the alternating current adapter equipped for each device to be supplied to the device, and the conversion efficiency in the process is mostly only about 80 percent, so that if the direct current power supply can be directly adopted, the efficiency can be effectively improved, the energy can be saved, and the environment can be protected. Meanwhile, with the rapid development and mass access of new energy power generation, energy storage and direct current load and the rapid development of power electronic technology, research and construction of direct current or alternating current and direct current power distribution and utilization systems become hot spots of industry development in recent years.
The low-voltage direct-current socket is used as the tail end of a direct-current power utilization system, is a foreseeable important link for implementing the direct-current power utilization system, and has important strategic significance in research and development. At present, most of the existing dc plugs and sockets on the market are low voltage and low current, and the dc plugs and sockets for small electronic devices are limited by their voltage and current levels, and cannot be used under the dc heavy load working condition, which hinders the development of the dc power distribution and utilization system.
The direct current plug and socket capable of working under a heavy load condition is designed, and the problem to be solved is how to rapidly and safely extinguish electric arcs. When the alternating current system generates a short-circuit fault, an alternating current arc is generated, and after the switch is switched off, the arc can be automatically extinguished at a zero crossing point, so that the on-off favorable condition exists. And the direct current arc can not break the arc because of no zero crossing point, and the conventional alternating current switch can not break the arc when a direct current system has a fault. The temperature of electric arc can reach thousands of degrees centigrade, easily lead to the ablation of material, directly influence the reliability and the life of direct current plug socket, the electric arc that participates in addition and jack department and produces can also arouse the phenomenon of scurrying electricity, causes the malfunction easily and damages electrical equipment, probably arouses the conflagration even, seriously threatens personal and property safety.
In the current direct current plug and socket patents, such as a direct current plug, a direct current socket and an electric device (CN 107369977A), in the process of plugging and unplugging the direct current plug, the inserted part of the resistor section is connected to a loop to play a role in limiting current, and after the direct current plug is completely inserted into the direct current socket, the inserted part of the resistor section is short-circuited to cut the loop into a state that the electric device does not affect normal operation of the electric device.
However, the series resistor is short-circuited by the arc resistor in the plugging process, when the series resistor is large, the series resistor is bypassed by the arc resistor, and current mainly flows through the arc, so that continuous arcing is caused; when the resistance is small, the voltage is constant, the current is large, the current limiting effect cannot be achieved, the series resistor generates heat seriously, is easy to burn and has poor reliability; a connecting device for direct current distribution (CN 107919576A) adopts a magnet-spring matching structure to realize rapid plug-in and pull-out of a socket, and utilizes a magnetic field generated by a magnet to play a magnetic blowing effect on an electric arc. But the function of extinguishing electric arc is not realized, and the pin insertion is still in live operation, which is not beneficial to the safety and stability in use; the direct current socket (CN 210326375) is powered on after a plug is inserted and powered off before the plug is pulled out, and the contact of a contactor is driven to open and close by controlling a contactor coil in the plugging process, so that the on-off of a loop is controlled. But need external power supply and need carry out the breakpoint operation when pulling out the plug, it is with high costs, it is not convenient enough to use.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention aims to provide a household direct current plug and socket with a capacitor and a working principle.
In order to achieve the purpose, the invention adopts the following technical scheme:
a household direct current plug and socket with a capacitor comprises a direct current plug and a direct current socket, wherein the direct current plug comprises a plug shell 1, two first permanent magnets 3 arranged in the plug shell 1, two spring blocks 5 arranged at the bottom of the plug shell 1, two sets of main pins 12 extending out of the plug shell 1, and two sets of auxiliary pins 2 extending out of the plug shell 1; the main pins 12 are arranged in two poles; the direct current socket comprises a socket shell 9, two sets of main pins 12 and two sets of jacks 11 matched with the overall dimensions of the auxiliary pins 2 of the direct current plug are arranged in the middle of the socket, a first main connecting contact 15 and a second main connecting contact 6 are arranged on the inner walls of the jacks matched with the two sets of main pins 12, a first auxiliary connecting contact 10 and a second auxiliary connecting contact 4 are arranged on the inner walls of the jacks matched with the two sets of auxiliary pins 2, a capacitor 16 and a resistor 8 are arranged in the socket shell 9, two second permanent magnets 14 which correspond to the two first permanent magnets 3 in position and are opposite in adjacent polarity are arranged in the socket shell 9, two sets of spring devices 13 which correspond to the two spring blocks 5 in position are arranged in the socket shell 9, and a spring leaf 7 is arranged at the bottom of the jacks.
Preferably, the first permanent magnet 3 in the plug shell 1 and the second permanent magnet 14 in the socket shell 9 are made of ferromagnetic materials, and magnetic force is generated to enable the plug and the socket to be quickly combined, so that the time of pre-breakdown when the plug is inserted is reduced, and a protection effect is achieved.
Preferably, the magnetic force between the first permanent magnet 3 and the second permanent magnet 14 is greater than the elastic force of the spring device 13, so that the plug can be firmly combined with the socket, and disturbance caused by external force is prevented.
Preferably, the length of the main pin 12 is greater than that of the sub-pin 2 to reduce the overall volume and weight of the plug receptacle.
Preferably, the first main connecting contact 15 is connected to the positive pole of the power supply, the second main connecting contact 6 is connected to the negative pole of the power supply, the first auxiliary connecting contact 10 is connected to the capacitor 16, and the second auxiliary connecting contact 4 is connected to the resistor 8, so as to realize the arc-free on-off function of the whole socket.
Preferably, when the connecting contact is not in contact with the pin, the connecting contact is in a closed state, and when the pin is inserted, the connecting contact is pushed open by the bottom of the pin so as to be attached to the pin, so that the pin is connected with the inside of the socket more tightly, the condition of poor contact is avoided, and the safety and the reliability are improved.
Preferably, the distance between the first auxiliary connecting contact 10 and the spring elastic sheet 7, the distance between the second main connecting contact 6 and the spring elastic sheet 7, the distance between the first main connecting contact 15 and the spring elastic sheet 7, and the distance between the second auxiliary connecting contact 4 and the spring elastic sheet 7 are sequentially from large to small, so that when the plug is pulled out, a power supply, a capacitor and a resistor in the socket are respectively separated from the plug according to a design sequence, and an arc-free on-off function is realized.
According to the working method of the household direct current plug socket with the capacitor, when the plug is pulled out, the auxiliary pin 2 is separated from the second auxiliary connecting contact 4, then the main pin 12 is separated from the first main connecting contact 15, the capacitors 16 connected to two ends of the main pin in parallel are not charged, the voltage of the two ends is 0 when the positive pin socket is separated, and non-arc separation is realized; then the capacitor 16 is connected into the circuit, the capacitor is charged, the voltage across it is equal to the supply voltage, then the main pin is separated from the second main connection contact 6, at this moment the voltage across it is also 0, achieving an arcless separation, and finally the auxiliary pin is separated from the first auxiliary connection contact 10; when the circuit works normally, the capacitor 16 and the resistor 8 are short-circuited by the positive pin socket, the capacitor 16 and the resistor 8 do not work in a loop, and the capacitor 16 discharges through the resistor 8; when the plug is inserted, the magnetic force is greater than the elastic force of the spring through the magnet-spring structure when the plug is to be completely inserted, so that the plug and the socket are quickly combined, the time for pre-puncture between the elastic pieces of the pin and the socket can be reduced, and the protection effect is realized.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention arranges the capacitor and the resistor in the socket, and realizes the arc-free plugging between the plug and the socket by the circuit principle.
(2) The invention has a magnet-spring structure, and is matched with a capacitance resistor, thereby greatly improving the voltage application level, and simultaneously improving the plugging speed of the plug and the socket, so that the plug and the socket are tightly combined in normal work.
(3) The invention uses the connecting contact to contact with the pin, when the plug is pulled out, the contact is closed, and when the plug is inserted, the contact is separated, thereby avoiding the condition of poor contact between the pin and the socket, and greatly improving the safety and reliability of the socket.
(4) The invention has the advantages that the overall dimension is basically consistent with that of the commercial AC socket, the socket is suitable for both a power strip and a wall socket, no complex mechanical structure exists, and the invention has the advantages of simple structure and convenient use.
Drawings
Fig. 1 is a schematic view of the internal structure of the dc plug and the dc outlet of the present invention.
Fig. 2 is a circuit diagram of the dc plug and socket of the present invention.
Fig. 3 is a socket portion of the dc plug socket of the present invention.
Fig. 4 is a plug portion of the dc plug receptacle of the present invention.
Fig. 5 shows a state where the direct current plug receptacle pins of the present invention are not inserted and the contacts are connected.
Fig. 6 shows the state of the contact when the dc plug receptacle pins of the present invention are inserted.
Each reference numeral represents:
1-a plug housing; 2-auxiliary pin; 3-a first permanent magnet; 4-a second set of connection contacts; 5-a spring block; 6-a second main connection contact; 7-spring leaf; 8-a resistor; 9-a socket housing; 10-a first secondary connection contact; 11-a jack; 12-a main pin; 13-a spring means; 14-a second permanent magnet; 15-a first main connection contact; 16-a capacitor; 17-a direct current power supply; 18-direct current load.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1, 3, 4 and 5, the household dc plug and socket with capacitor of the present invention comprises a dc plug and a dc socket, wherein the dc plug comprises a plug housing 1, two first permanent magnets 3 arranged inside the plug housing 1, two spring blocks 5 arranged at the bottom of the plug housing 1, two sets of main pins 12 extending out of the plug housing 1, and two sets of auxiliary pins 2 extending out of the plug housing 1; the main pin 12 is arranged in two poles; the direct current socket comprises a socket shell 9, the middle part of the socket is provided with two sets of main pins 12 and two sets of jacks 11 matched with the overall dimensions of the auxiliary pins 2 of the direct current plug, the inner walls of the jacks matched with the two sets of main pins 12 are provided with a first main connecting contact 15 and a second main connecting contact 6, the inner walls of the jacks matched with the two sets of auxiliary pins 2 are provided with a first auxiliary connecting contact 10 and a second auxiliary connecting contact 4, a capacitor 16 and a resistor 8 are arranged inside the socket shell 9, two second permanent magnets 14 which correspond to the two first permanent magnets 3 in position and are opposite in adjacent polarity are arranged inside the socket shell 9, two sets of spring devices 13 which correspond to the two spring blocks 5 in position are arranged inside the socket shell 9, and spring pieces are arranged at the bottom of the jacks. The permanent magnets with opposite polarities in the plug and socket shell avoid the situation that direct current electrodes are connected reversely when a user uses the plug and socket shell.
As shown in fig. 2, the first main connecting contact 15 is connected to the positive pole of the power supply, the second main connecting contact 6 is connected to the negative pole of the power supply, the first auxiliary connecting contact 10 is connected to the capacitor 16, and the second auxiliary connecting contact 4 is connected to the resistor 8, so as to realize the arc-free opening and closing function of the whole socket.
As shown in fig. 5 and 6, when the connection contact is not in contact with the pin, the connection contact is in a closed state, and when the pin is inserted, the connection contact is pushed open by the bottom of the pin so as to be attached to the pin, so that the connection between the pin and the inside of the socket is tighter, the situation of poor contact is avoided, and the safety and the reliability are improved.
When the plug is pulled out, the auxiliary pin 2 is separated from the second auxiliary connecting contact 4, then the main pin 12 is separated from the first main connecting contact 15, at the moment, the capacitors 16 connected in parallel at two ends of the main pin are not charged, the voltage at the two ends is 0, so that the voltage at the two ends is 0 when the positive pin socket is separated, and arc-free separation is realized; then the capacitor 16 is connected into the circuit, the capacitor is charged, the voltage across it is equal to the supply voltage, then the main pin is separated from the second main connection contact 6, at this moment the voltage across it is also 0, achieving an arcless separation, and finally the auxiliary pin is separated from the first auxiliary connection contact 10; when the circuit works normally, the capacitor 16 and the resistor 8 are short-circuited by the positive pin socket, the capacitor 16 and the resistor 8 do not work in a loop, and the capacitor 16 discharges through the resistor 8; when the plug is inserted, the magnetic force is greater than the elastic force of the spring through the magnet-spring structure when the plug is to be completely inserted, so that the plug and the socket are quickly combined, the time for pre-puncture between the elastic pieces of the pin and the socket can be reduced, and the protection effect is realized.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the examples. Based on the embodiments of the present invention, other embodiments obtained by modifying and simplifying the embodiments by those skilled in the art without any creative work belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a domestic direct current plug and socket-outlet with electric capacity, includes direct current plug and direct current socket, its characterized in that: the direct current plug comprises a plug shell (1), two first permanent magnets (3) arranged inside the plug shell (1), two spring blocks (5) arranged at the bottom of the plug shell (1), two sets of main pins (12) extending out of the plug shell (1) and two sets of auxiliary pins (2) extending out of the plug shell (1); the main pin (12) is arranged in two poles; the direct current socket comprises a socket shell (9), wherein two sets of main pins (12) and auxiliary pins (2) of the direct current plug are arranged in the middle of the socket, jacks (11) matched with the overall dimensions of the two sets of main pins (12) and the auxiliary pins (2) are formed in the middle of the socket, first main connecting contacts (15) and second main connecting contacts (6) are arranged on the inner walls of the jacks matched with the two sets of main pins (12), first auxiliary connecting contacts (10) and second auxiliary connecting contacts (4) are arranged on the inner walls of the jacks matched with the two sets of auxiliary pins (2), a capacitor (16) and a resistor (8) are arranged in the socket shell (9), two second permanent magnets (14) which correspond to the two first permanent magnets (3) and are opposite in polarity to the adjacent ends are arranged in the socket shell (9), two sets of spring devices (13) which correspond to the two spring blocks (5) and are arranged in the socket shell (9), and spring elastic pieces (7) arranged at the bottoms of the jacks;
the first main connecting contact (15) is connected with the positive pole of a power supply, the second main connecting contact (6) is connected with the negative pole of the power supply, the first auxiliary connecting contact (10) is connected with a capacitor (16), and the second auxiliary connecting contact (4) is connected with a resistor (8);
the distance between the first auxiliary connecting contact (10) and the bottom spring leaf, the distance between the second main connecting contact (6) and the spring leaf (7), the distance between the first main connecting contact (15) and the spring leaf (7) and the distance between the second auxiliary connecting contact (4) and the spring leaf (7) are sequentially from large to small.
2. The household direct current plug and socket with the capacitor as claimed in claim 1, wherein: the first permanent magnet (3) in the plug shell (1) and the second permanent magnet (14) in the socket shell (9) are made of ferromagnetic materials.
3. A household dc plug and socket with capacitor as defined in claim 1, wherein: the magnetic force between the first permanent magnet (3) and the second permanent magnet (14) is greater than the elastic force of the spring device (13).
4. The household direct current plug and socket with the capacitor as claimed in claim 1, wherein: the length of the main pin (12) is larger than that of the auxiliary pin (2).
5. The household direct current plug and socket with the capacitor as claimed in claim 1, wherein: when the pin is inserted, the connecting contact is pushed open by the bottom of the pin so as to be attached to the pin.
6. The method for operating a household direct current plug and socket with a capacitor as claimed in any one of claims 1 to 5, wherein:
when the plug is pulled out, the auxiliary pin (2) is separated from the second auxiliary connecting contact (4), then the main pin (12) is separated from the first main connecting contact (15), at the moment, the capacitors (16) which are connected in parallel at two ends of the main pin are not charged, the voltage at two ends is 0, so that the voltage at two ends is 0 when the positive pin socket is separated, and the arcless separation is realized; then the capacitor (16) is connected into the circuit, the capacitor is charged, the voltage at two ends of the capacitor is equal to the power supply voltage, then the main pin is separated from the second main connecting contact (6), the voltage at two ends of the main pin is also 0 at the moment, the non-arc separation is realized, and finally the auxiliary pin is separated from the first auxiliary connecting contact (10); in normal operation, the capacitor (16) and the resistor (8) can be short-circuited by the positive pin socket, the capacitor (16) and the resistor (8) do not work in a loop, and meanwhile, the capacitor (16) is discharged through the resistor (8); when the plug is inserted, the magnetic force is greater than the elastic force of the spring through the magnet-spring structure when the plug is to be completely inserted, so that the plug and the socket are quickly combined, the time for pre-puncture between the elastic pieces of the pin and the socket can be reduced, and the protection effect is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520366.8A CN114204358B (en) | 2021-12-13 | 2021-12-13 | Household direct current plug and socket with capacitor and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520366.8A CN114204358B (en) | 2021-12-13 | 2021-12-13 | Household direct current plug and socket with capacitor and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114204358A CN114204358A (en) | 2022-03-18 |
| CN114204358B true CN114204358B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111520366.8A Active CN114204358B (en) | 2021-12-13 | 2021-12-13 | Household direct current plug and socket with capacitor and working method |
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| CN (1) | CN114204358B (en) |
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| Publication number | Publication date |
|---|---|
| CN114204358A (en) | 2022-03-18 |
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