CN113571977A - Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof - Google Patents
Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof Download PDFInfo
- Publication number
- CN113571977A CN113571977A CN202110745867.XA CN202110745867A CN113571977A CN 113571977 A CN113571977 A CN 113571977A CN 202110745867 A CN202110745867 A CN 202110745867A CN 113571977 A CN113571977 A CN 113571977A
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- Prior art keywords
- hydrogen
- contactor
- direct current
- plug
- socket
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Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000001257 hydrogen Substances 0.000 claims abstract description 66
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000010891 electric arc Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6616—Structural association with built-in electrical component with built-in single component with resistor
-
- 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
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- 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
- H01R13/717—Structural association with built-in electrical component with built-in light source
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to the technical field of power distribution network fault protection, and particularly provides a direct-plugging arc-free direct-current plug and socket system and a control method thereof, aiming at solving the technical problem of potential safety hazard caused by electric arc generated when the existing plug and socket system is plugged. The system comprises direct current plug and direct current socket, direct current socket includes: the hydrogen-gas generating device comprises a socket contact, a spring mechanism, a linked switch, a current-limiting resistor and a hydrogen contactor; the technical scheme provided by the invention improves the arc discharge problem of the direct current load in the prior art when the direct current load is inserted into or separated from the direct current power supply, and reduces the fire risk of electrical equipment.
Description
Technical Field
The invention relates to the field of power distribution network fault protection, in particular to a directly pluggable arcless direct current plug and direct current socket system and a control method thereof.
Background
The dc distribution network is in contrast to the ac distribution network, and the dc loads may be directly powered by the dc bus. The direct-current distribution network has small line loss, high reliability, no need of phase-frequency control and strong distributed power supply accepting capability. The direct-current power distribution network has better performance than alternating current in the aspects of transmission capacity, controllability, improvement of power supply quality, reduction of line loss, isolation of alternating current and direct current faults, flexible and convenient access of renewable energy sources and the like, can effectively improve the electric energy quality, reduce the use of a power electronic converter, reduce the electric energy loss and the operation cost, coordinate contradictions between a large power grid and a distributed power supply, and fully exert the value and benefit of the distributed energy sources. After the switching electric appliances of the alternating current system are separated, the electric arc is extinguished at the zero crossing point, and the circuit can be disconnected. The dc arc cannot break the arc because it is not zero, so the appliance needs to be specially designed in the dc system.
Plugs and sockets are important electrical appliances for loads to be connected to a power supply system. At present, plugs and sockets on the market are generally designed according to technical parameters of an alternating current power grid, and have no function of extinguishing direct current arc current, so that electric arcs are generated during plugging and unplugging, and potential safety hazards are brought.
Disclosure of Invention
In order to overcome the defects, the invention provides a direct-plugging arc-free direct current plug and a direct current socket system and a control method thereof, which solve or at least partially solve the technical problem of potential safety hazards caused by electric arcs generated during plugging and unplugging of the existing plug and socket system.
In a first aspect, a directly pluggable arcless dc plug and dc socket system is provided, where the system is composed of a dc plug and a dc socket, and the dc socket includes: the hydrogen-gas generating device comprises a socket contact, a spring mechanism, a linked switch, a current-limiting resistor and a hydrogen contactor;
one end of the socket contact is sequentially connected with a linked switch and one end of a current-limiting resistor, the other end of the current-limiting resistor is connected with a first connecting end of the hydrogen contactor, a second connecting end of the hydrogen contactor is connected with a fourth connecting end of the hydrogen contactor, and the other end of the socket contact is connected with a third connecting end of the hydrogen contactor;
a connection point between the socket contact and the linkage switch and a connection point between the second connection end of the hydrogen contactor and the fourth connection end of the hydrogen contactor are connected with a power supply;
the spring mechanism is used for closing the linkage switch when the direct current plug is inserted into the socket contact and disconnecting the linkage switch when the direct current plug is not inserted into the socket contact.
Preferably, the system further comprises an indicator lamp connected between the second connection terminal of the hydrogen contactor and the fourth connection terminal of the hydrogen contactor.
Preferably, the spring mechanism comprises a supporting part and a spring, one end of the spring is connected with the supporting part, and the other end of the spring is arranged on the switch triggering part of the linked switch.
Preferably, the hydrogen contactor consists of a coil, an electromagnetic mechanism and a double-fracture contact;
the two ends of the coil are respectively a first connecting end and a second connecting end of the hydrogen contactor;
and the two ends of the double-fracture contact are respectively a third connecting end and a fourth connecting end of the hydrogen contactor.
In a second aspect, a control method based on the directly pluggable arcless dc plug and dc socket system is provided, the method includes:
the direct current plug is inserted into the direct current socket through the socket contact and contacts the spring mechanism until the linkage switch is closed;
after the linkage switch is closed, current passes through the current-limiting resistor, so that a coil of the hydrogen contactor is electrified, and an electromagnetic mechanism of the hydrogen contactor drives double-break contacts of the hydrogen contactor to be closed until the direct-current plug is electrified.
Preferably, the indicator light is illuminated when the ganged switch of the dc outlet is closed.
In a third aspect, a control method based on the directly pluggable arcless dc plug and dc socket system is provided, where the method includes:
the direct current plug is pulled out from the direct current socket, the spring mechanism pulls open the linkage switch, so that the coil of the hydrogen contactor is powered off, and the electromagnetic mechanism of the hydrogen contactor drives the double-break contact of the hydrogen contactor to be disconnected.
Preferably, when the ganged switch of the direct current socket is turned off, the indicator lamp is turned off.
One or more technical schemes of the invention at least have one or more of the following beneficial effects:
the invention provides a non-arc direct current plug and direct current socket system capable of being directly plugged and pulled, which consists of a direct current plug and a direct current socket, wherein the direct current socket comprises: the hydrogen-gas generating device comprises a socket contact, a spring mechanism, a linked switch, a current-limiting resistor and a hydrogen contactor; one end of the socket contact is sequentially connected with a linked switch and one end of a current-limiting resistor, the other end of the current-limiting resistor is connected with a first connecting end of the hydrogen contactor, a second connecting end of the hydrogen contactor is connected with a fourth connecting end of the hydrogen contactor, and the other end of the socket contact is connected with a third connecting end of the hydrogen contactor; a connection point between the socket contact and the linkage switch and a connection point between the second connection end of the hydrogen contactor and the fourth connection end of the hydrogen contactor are connected with a power supply; the spring mechanism is used for being pressed when the direct current plug is inserted into the socket contact, closing the linkage switch, and disconnecting the linkage switch when the direct current plug is not inserted into the socket contact. The invention designs a direct current plug and a direct current socket by utilizing the arc extinguishing performance of hydrogen, and can realize the live-line non-arc plugging of direct current equipment, thereby not only conforming to the daily operation habit, but also reducing the fire hazard of electrical appliances caused by arc discharge.
Drawings
Fig. 1 is a schematic structural diagram of a directly pluggable arcless dc plug and dc socket system in an off state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a direct current plug and a direct current socket system of the present invention, wherein the direct current plug and the direct current socket system are directly pluggable, and are not in a closed state;
fig. 3 is a schematic structural diagram of a directly pluggable arcless dc plug and dc outlet system in a closed state according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The arc-free direct current plug and direct current socket system capable of being directly plugged and unplugged in the embodiment of the invention consists of a direct current plug and a direct current socket, wherein the direct current socket comprises: the hydrogen-gas generating device comprises a socket contact, a spring mechanism, a linked switch, a current-limiting resistor and a hydrogen contactor;
one end of the socket contact is sequentially connected with a linked switch and one end of a current-limiting resistor, the other end of the current-limiting resistor is connected with a first connecting end of the hydrogen contactor, a second connecting end of the hydrogen contactor is connected with a fourth connecting end of the hydrogen contactor, and the other end of the socket contact is connected with a third connecting end of the hydrogen contactor;
a connection point between the socket contact and the linkage switch and a connection point between the second connection end of the hydrogen contactor and the fourth connection end of the hydrogen contactor are connected with a power supply;
the spring mechanism is used for closing the linkage switch when the direct current plug is inserted into the socket contact and disconnecting the linkage switch when the direct current plug is not inserted into the socket contact.
In this embodiment, the system further includes an indicator light connected between the second connection terminal of the hydrogen contactor and the fourth connection terminal of the hydrogen contactor.
In this embodiment, the spring mechanism includes a support portion and a spring, one end of the spring is connected to the support portion, and the other end is disposed on the switch triggering portion of the linked switch.
In this embodiment, the hydrogen contactor is composed of a coil, an electromagnetic mechanism and a double-break contact;
the two ends of the coil are respectively a first connecting end and a second connecting end of the hydrogen contactor;
and the two ends of the double-fracture contact are respectively a third connecting end and a fourth connecting end of the hydrogen contactor.
In one embodiment, the operation of the directly pluggable arcless dc plug and dc outlet system is as follows:
1. insertion process
A dc plug is inserted into a dc receptacle and first contacts the receptacle contacts as shown in fig. 2. When the direct current plug is continuously inserted and contacts the spring mechanism, the spring is compressed, the linkage switch is closed, the coil of the hydrogen contactor is electrified through the current-limiting resistor, the electromagnetic mechanism drives the contact to be closed, and the direct current plug is electrified, as shown in fig. 3. When the direct current socket is in a closed state, the indicator lamp emits light.
2. Pulling out process
The direct current plug is pulled out from the direct current socket and firstly separated from the spring mechanism, as shown in figure 2, the spring mechanism pulls the linkage switch open to enable the coil of the hydrogen contactor to be powered off, so that the electromagnetic mechanism drives the contacts to be disconnected, the hydrogen type double-break contact has the function of extinguishing direct current electric arc, the structure of the double-break contact lengthens the length of the electric arc, the electric arc is easily extinguished, and the condition that no electric arc exists in the power failure process of the direct current plug is ensured, as shown in figure 1. When the direct current socket is in a disconnected state, the indicator lamp is turned off.
Based on the same inventive concept, the invention also provides a control method based on the directly pluggable arcless direct current plug and direct current socket system, and the method comprises the following steps:
the direct current plug is inserted into the direct current socket through the socket contact and contacts the spring mechanism until the linkage switch is closed;
after the linkage switch is closed, current passes through the current-limiting resistor, so that a coil of the hydrogen contactor is electrified, and an electromagnetic mechanism of the hydrogen contactor drives double-break contacts of the hydrogen contactor to be closed until the direct-current plug is electrified.
Preferably, the indicator light is illuminated when the ganged switch of the dc outlet is closed.
Based on the same inventive concept, the invention also provides a control method based on the directly pluggable arcless direct current plug and direct current socket system, and the method comprises the following steps:
the direct current plug is pulled out from the direct current socket, the spring mechanism pulls open the linkage switch, so that the coil of the hydrogen contactor is powered off, and the electromagnetic mechanism of the hydrogen contactor drives the double-break contact of the hydrogen contactor to be disconnected.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (8)
1. A directly pluggable arcless dc plug and dc outlet system comprised of a dc plug and a dc outlet, said dc outlet comprising: the hydrogen-gas generating device comprises a socket contact, a spring mechanism, a linked switch, a current-limiting resistor and a hydrogen contactor;
one end of the socket contact is sequentially connected with a linked switch and one end of a current-limiting resistor, the other end of the current-limiting resistor is connected with a first connecting end of the hydrogen contactor, a second connecting end of the hydrogen contactor is connected with a fourth connecting end of the hydrogen contactor, and the other end of the socket contact is connected with a third connecting end of the hydrogen contactor;
a connection point between the socket contact and the linkage switch and a connection point between the second connection end of the hydrogen contactor and the fourth connection end of the hydrogen contactor are connected with a power supply;
the spring mechanism is used for closing the linkage switch when the direct current plug is inserted into the socket contact and disconnecting the linkage switch when the direct current plug is not inserted into the socket contact.
2. The system of claim 1, further comprising an indicator light connected between the second connection terminal of the hydrogen contactor and the fourth connection terminal of the hydrogen contactor.
3. The system of claim 1, wherein the spring mechanism comprises a support and a spring, one end of the spring is connected to the support, and the other end of the spring is disposed on the switch triggering portion of the linked switch.
4. The system of claim 1, wherein the hydrogen contactor is comprised of a coil, an electromagnetic mechanism, and a double break contact;
the two ends of the coil are respectively a first connecting end and a second connecting end of the hydrogen contactor;
and the two ends of the double-fracture contact are respectively a third connecting end and a fourth connecting end of the hydrogen contactor.
5. A control method for a direct-plug arcless direct current plug and direct current socket system according to any one of claims 1 to 4, wherein the method comprises the following steps:
the direct current plug is inserted into the direct current socket through the socket contact and contacts the spring mechanism until the linkage switch is closed;
after the linkage switch is closed, current passes through the current-limiting resistor, so that a coil of the hydrogen contactor is electrified, and an electromagnetic mechanism of the hydrogen contactor drives double-break contacts of the hydrogen contactor to be closed until the direct-current plug is electrified.
6. The method of claim 5, wherein the indicator light is illuminated when the gang switch of the DC outlet is closed.
7. A control method for a direct-plug arcless direct current plug and direct current socket system according to any one of claims 1 to 4, wherein the method comprises the following steps:
the direct current plug is pulled out from the direct current socket, the spring mechanism pulls open the linkage switch, so that the coil of the hydrogen contactor is powered off, and the electromagnetic mechanism of the hydrogen contactor drives the double-break contact of the hydrogen contactor to be disconnected.
8. The method of claim 7, wherein the indicator light is extinguished when the gang switch of the dc outlet is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110745867.XA CN113571977A (en) | 2021-07-01 | 2021-07-01 | Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110745867.XA CN113571977A (en) | 2021-07-01 | 2021-07-01 | Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113571977A true CN113571977A (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110745867.XA Pending CN113571977A (en) | 2021-07-01 | 2021-07-01 | Arcless direct current plug and direct current socket system capable of being directly plugged and unplugged and control method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN113571977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552311A (en) * | 2022-01-26 | 2022-05-27 | 中航光电科技股份有限公司 | Safety frame with modular power switch |
-
2021
- 2021-07-01 CN CN202110745867.XA patent/CN113571977A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552311A (en) * | 2022-01-26 | 2022-05-27 | 中航光电科技股份有限公司 | Safety frame with modular power switch |
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