CN116885504A - Electric connection device and energizing method thereof - Google Patents

Electric connection device and energizing method thereof Download PDF

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Publication number
CN116885504A
CN116885504A CN202310874586.3A CN202310874586A CN116885504A CN 116885504 A CN116885504 A CN 116885504A CN 202310874586 A CN202310874586 A CN 202310874586A CN 116885504 A CN116885504 A CN 116885504A
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CN
China
Prior art keywords
control module
signal
power supply
controller
mains supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310874586.3A
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Chinese (zh)
Inventor
赵武
张永川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Pisen Electronics Co ltd
Original Assignee
Guangdong Pisen Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Pisen Electronics Co ltd filed Critical Guangdong Pisen Electronics Co ltd
Priority to CN202310874586.3A priority Critical patent/CN116885504A/en
Publication of CN116885504A publication Critical patent/CN116885504A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety 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
    • H01R13/44—Means for preventing access to live contacts
    • 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
    • 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
    • H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
    • 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
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • 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
    • H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
    • 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

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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 relates to an electric connection device and an electrifying method thereof, comprising a controller, wherein the controller is provided with a controller input end, a mains supply output port capable of being connected with an energy storage power supply and a plug for being connected with a mains supply socket; the plug is provided with a safety switch part, and when the plug is inserted into the socket, the safety switch part is triggered to allow the input end of the controller to be communicated with the pins; this device is applicable to when having a power failure in the family, and energy storage power supply is to the scene of commercial power socket power supply, connects energy storage power supply's commercial power delivery outlet and the commercial power socket in family respectively with this device, and energy storage power supply can be to the electric wire netting power supply in family, makes lamps and lanterns and the electric appliances in the family removable electrician work. The device has a safety switch part which is triggered when the plug of the device is inserted into the socket to allow power transmission. The device is provided with a commercial power detection module, can detect whether a socket in a house is electrified before power transmission is allowed, and only allows power transmission when the socket is detected to be not electrified, so that the safety of electric appliances and personnel can be ensured.

Description

Electric connection device and energizing method thereof
Technical Field
The invention relates to an electric connection device for supplying power to a commercial power socket by an energy storage power supply.
Background
An energy storage power supply or outdoor power supply is a small-sized energy storage device. The internal of the transformer is provided with a battery core which can store electric energy, and the transformer also generally has the circuit functions of transformation, inversion and the like, and the transformer is provided with a commercial power output port which can be externally powered by 220v alternating current.
In general, an energy storage power supply is used for outdoor power supply, however, a new application scenario is that, for example, when a power failure occurs in a home, the energy storage power supply is connected to a commercial power socket in the home, and power is reversely supplied to each socket and electric appliance in the home. There is a need for a means to electrically connect an energy storage power source to a mains supply outlet at home, and the connection and supply process ensures the safety of the circuit and personnel, especially to prevent the supply of power to the mains supply outlet already on hand.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: an electric connection device is provided, which can connect an energy storage power supply with a commercial power socket, and the energy storage power supply safely supplies power to the socket.
The technical scheme adopted for solving the technical problems is as follows:
the electric connection device comprises a controller, wherein the controller is provided with a controller input end, the controller input end is used for being connected with a mains supply output port of an energy storage power supply, and the controller is also provided with a plug for being connected with a mains supply socket;
the plug is provided with a pin, and the surface of the plug facing the socket is provided with a safety switch part, so that when the plug is inserted into the socket, the safety switch part is triggered to allow the input end of the controller to be communicated with the pin; when the plug is pulled out from the socket, the safety switch part is triggered to disconnect the input end of the controller from the pins;
The controller is provided with a power supply module, a control module, a relay part and a commercial power detection module;
the power supply module is respectively connected with the input end of the controller and the relay part and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the relay part;
the power supply module is respectively connected with the input end of the controller and the control module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the control module;
the power supply module is respectively connected with the input end of the controller and the commercial power detection module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the commercial power detection module;
the power supply module is respectively connected with the input end of the controller and the safety switch part and is used for receiving the mains supply from the input end of the controller and converting the mains supply into an adaptive voltage to supply power for the safety switch part;
the input end of the controller is connected with the plug to form a mains supply path, the relay part is arranged on the mains supply path and connected with the control module, and the relay part is used for receiving a control signal of the control module and further controlling the on/off of the mains supply path;
The control module is used for receiving a safety switch signal formed when the safety switch part is triggered, and controlling the on/off of a mains supply path according to the safety switch signal;
the utility power detection module one end is connected with the control module, and the utility power detection module other end is the detection end, the detection end is connected with the utility power supply route, and the tie point of detection end and utility power supply route is located between relay portion and the plug for the utility power detection module detects whether the utility power supply route is electrified, and then forms the utility power detection signal and send control module, control module is according to the utility power detection signal, and then control utility power supply route switch-on/off.
Further, the power supply detection device further comprises a power supply detection module, the power supply detection module is connected with the input end of the controller and the control module respectively and is used for receiving the mains supply of the input end of the controller, forming a power supply detection signal after conversion and sending the power supply detection signal to the control module, and the control module further controls the on/off of a mains supply path according to the power supply detection signal.
Further, the relay part at least comprises a first relay part and a second relay part, the first relay part and the second relay part are connected in series on a mains supply path, the first relay part is close to the input end of the controller, and the second relay part is close to the plug;
The utility power detection module at least comprises a first utility power detection module and a second utility power detection module, wherein the detection end of the first utility power detection module is connected to a utility power supply path between the first relay part and the second relay part, and the detection end of the second utility power detection module is connected to the utility power supply path between the second relay part and the plug and is used for respectively forming the utility power detection signals.
Further, the alarm device is connected with the power supply module and the control module respectively and is used for entering an alarm state when the control module sends an alarm starting signal to the alarm device.
Further, the power supply device further comprises a manual switch, wherein the manual switch is respectively connected with the power supply module and the control module and is used for sending a manual switch signal to the control module when the manual switch is triggered, and the control module is used for controlling the on/off of a mains supply path according to the manual switch signal.
Further, the safety switch part comprises at least two tact switches connected in series, and when the at least two tact switches are pressed down, the safety switch part is triggered; the plug is a three-pin plug, and the at least two tact switches are distributed on two sides of the grounding pin; the input end of the controller is a delta socket.
Further, the controller is further provided with a circuit breaking safety device, and the circuit breaking safety device is located at the common input end of the power supply module, the relay part and the power supply detection module.
A method of powering on an electrical connection device, using an electrical connection device as described above, comprising the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug is inserted into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the commercial power detection signal, and if the commercial power detection signal shows that the commercial power detection signal is not electrified, the control module allows sending a switch-on control signal to the relay part;
in the step b, when the safety switch signal and the mains supply detection signal are both permission signals for sending a switch-on control signal to the relay part, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, the control module sends an off control signal to the relay part or prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
Further, using the electrical connection device as described above, the implementation comprises the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug is inserted into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the commercial power detection signal, and if the commercial power detection signal shows that the commercial power detection signal is not electrified, the control module allows sending a switch-on control signal to the relay part;
in the step b, when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, or the power supply detection signal exceeds a preset threshold value, the control module sends an off control signal to the relay part, or the control module prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
Further, using the electrical connection device as described above, the implementation comprises the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug is inserted into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part;
the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part;
detecting a commercial power detection signal:
the control module receives and detects the commercial power detection signal of the second commercial power detection module, and if the commercial power detection signal is not electrified, the control module receives and detects the commercial power detection signal of the first commercial power detection module; if the commercial power detection signal of the first commercial power detection module shows that the commercial power detection signal is not electrified, the control module sends a switching-on control signal to the first relay part;
the control module receives and detects the commercial power detection signal of the first commercial power detection module again, and if the display is electrified, the control module receives and detects the commercial power detection signal of the second commercial power detection module again; if the mains supply detection signal of the second mains supply detection module shows that the second relay part is not electrified, the control module allows sending a switch-on control signal to the second relay part;
In the step b, when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part, the control module sends the switch-on control signal to the second relay part to enable the relay part to be attracted, the mains supply path is switched on, otherwise, the control module sends the alarm starting signal, and when the safety switch signal is stopped or the power supply detection signal exceeds a preset threshold value, the control module sends a switch-off control signal to the relay part or prohibits sending the switch-on control signal to the relay part, and the mains supply path is switched off.
The beneficial effects of the invention are as follows: the utility model provides an electric connection device, when being applicable to the power failure in the family, energy storage power supply is to the scene of commercial power socket power supply, connects energy storage power supply's commercial power delivery outlet and the commercial power socket in the family respectively with this device, and energy storage power supply can be to the electric wire netting power supply in the family, makes lamps and lanterns and the electric appliances in the family removable electrician work. The device has a safety switch part, when the plug of the device is inserted into the socket, the device can be triggered to allow power transmission, and when the plug is separated from the socket, the pins are not electrified, so that the danger of electric shock of personnel can be avoided. The device is also provided with a commercial power detection module which can detect whether a socket in a house is electrified before power transmission is allowed, and power transmission is allowed only when the socket is not electrified. In the preferred embodiment, the device is also provided with a power supply detection module which can detect whether the power supply of the energy storage power supply meets the requirement, and the device is also provided with the functions of finding out an error starting alarm and the like. The safety of electric appliances and personnel can be ensured.
Drawings
FIG. 1 is a schematic perspective view of one embodiment of an electrical connection apparatus of the present embodiment;
FIG. 2 is a schematic perspective view of the embodiment of FIG. 1 from a second perspective;
FIG. 3 is a schematic perspective view of the embodiment of FIG. 1 from a third perspective;
FIG. 4 is a schematic diagram of the circuit functional module of one embodiment of the electrical connection device of the present solution;
FIG. 5 is a schematic diagram of a circuit functional module of another embodiment of the electrical connection device of the present embodiment;
FIG. 6 is a schematic diagram of an embodiment of an electrical connection device of the present embodiment, using an optocoupler to form a mains detection module;
reference numerals: the device comprises a controller 1, a delta-socket 11, a plug 2, a pin 21, a tact switch 22, a manual switch 31, a circuit breaking safety device 32, a mains supply detection module 91, an optocoupler 92, a rectifier diode 93, a current limiting resistor 94 and a pull-up resistor 95.
Detailed Description
The invention is further illustrated in the following, with reference to the figures and examples, which may typically be:
the electric connection device comprises a controller 1, wherein the controller 1 is provided with a controller input end, the controller input end is used for connecting a mains supply output port of an energy storage power supply, and the controller 1 is also provided with a plug 2 used for connecting a mains supply socket;
the plug 2 is provided with a pin 21, and the surface of the plug 2 facing the socket is provided with a safety switch part, so that when the plug 2 is inserted into the socket, the safety switch part is triggered to allow the input end of the controller to be communicated with the pin 21; when the plug 2 is pulled out of the socket, the safety switch part is triggered to disconnect the input end of the controller from the pin 21;
The controller 1 is provided with a power supply module, a control module, a relay part and a mains supply detection module;
the power supply module is respectively connected with the input end of the controller and the relay part and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the relay part;
the power supply module is respectively connected with the input end of the controller and the control module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the control module;
the power supply module is respectively connected with the input end of the controller and the commercial power detection module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the commercial power detection module;
the power supply module is respectively connected with the input end of the controller and the safety switch part and is used for receiving the mains supply from the input end of the controller and converting the mains supply into an adaptive voltage to supply power for the safety switch part;
the input end of the controller is connected with the plug 2 to form a mains supply path, the relay part is arranged on the mains supply path and connected with the control module, and the relay part is used for receiving a control signal of the control module and further controlling the on/off of the mains supply path;
The control module is used for receiving a safety switch signal formed when the safety switch part is triggered, and controlling the on/off of a mains supply path according to the safety switch signal;
the utility power detection module one end is connected with the control module, and the utility power detection module other end is the detection end, the detection end is connected with the utility power supply route, and the tie point of detection end and utility power supply route is located between relay portion and the plug 2 for the utility power detection module detects whether the utility power supply route is electrified, and then forms the utility power detection signal and sends control module, control module is according to the utility power detection signal, and then control utility power supply route switch-on/off.
The electric connecting device is used for connecting an energy storage power supply and a mains supply socket and is suitable for the scene that the energy storage power supply supplies power to the mains supply socket. The plug of this device can trigger safety switch portion after inserting the socket, before energy storage power supply was supplied power to the commercial power socket, still can detect whether the commercial power supply route is electrified in advance, and when safety switch portion was triggered, the commercial power supply route just can start to supply power to the commercial power socket when uncharged moreover, can ensure personnel and electric wire netting safety.
Specifically, as shown in fig. 1 to 4, the present electrical connection device includes a controller 1, and each circuit functional module is provided inside the controller 1.
The controller 1 is provided with a controller input end for switching on a mains supply outlet of the energy storage power supply, for example, in the embodiment of fig. 2 and 3, the figure-of-the-Chinese character 'pin' socket 11 is adopted as the controller input end, and when in use, the mains supply outlet of the energy storage power supply is connected to the figure-of-Chinese character 'pin' socket 11 through a figure-of-Chinese character 'pin' cable. The input end of the controller can also be in other forms, such as a jack in other forms, or a cable with a plug, and when the controller is used, the cable is connected with a mains supply output port of the energy storage power supply, so that the mains supply input is obtained.
The controller 1 is further provided with a plug 2 for connecting to a mains socket, for example, the plug 2 is plugged into a wall plug in a home, and then mains output by an energy storage power supply can be transmitted to a power grid in the home via the electric connection device to supply power to all lamps and appliances.
In order to ensure the power supply safety, as shown in fig. 2, a safety switch part is arranged on the surface of the plug 2 facing the socket, when the plug 2 is inserted into the socket, the safety switch part is triggered due to extrusion or shielding, so that the control module receives a safety switch signal, and the input end of the controller is allowed to be connected with the pins 21; when the plug 2 is pulled out of the socket, the safety switch part is disengaged, the control module does not receive a safety switch signal, and the controller input terminal is disconnected from the pin 21. Therefore, the control module is only allowed to be electrified when the plug is plugged into the socket, and the situation that a person touches the pins to be electrified can be avoided.
In a specific implementation manner, for example, the safety switch part can be in the form of a photosensitive switch, a tact switch or the like to realize the functions. For example, when the safety switch part adopts a photosensitive switch, the photosensitive switch is shielded when the plug 2 is inserted into the socket, the switch is triggered, a trigger signal can be sent to the control module, and the control module further controls the on-off of the relay part, namely, the on-off of the mains supply path is controlled.
More preferably, the safety switch part includes at least two tact switches 22 connected in series, and the safety switch part is triggered when both of the at least two tact switches 22 are pressed; the plug 2 is a three-pin plug, and the at least two tact switches 22 are distributed on both sides of the ground pin.
For example, as shown in fig. 2, two tact switches 22 are distributed on both sides of the ground pin, and the two tact switches 22 are connected in series in the circuit, and the safety switch portion is triggered only when both tact switches 22 are pressed down, for example, when the plug is properly inserted into the socket, to allow power to be supplied to the plug. When the plug is pulled out, or misoperation occurs, when one tact switch is pressed down alone, the safety switch part can not be triggered, the plug can not be electrified, and the safety can be further improved.
As shown in fig. 4, in terms of the circuit configuration, the controller 1 is provided with a power supply module, a control module, a relay section, and a commercial power detection module.
The input end of the controller is used for being connected with a mains supply output port of the energy storage power supply, so as to obtain mains supply input. The power supply module is responsible for converting the mains supply input into proper voltage to supply power for each functional module, and the specific voltage value is determined according to the requirements of each functional module.
Typically, for example, the power supply module receives the mains supply from the input end of the controller and converts the mains supply into direct current of 12 volts to supply power for the relay part; the power is converted into direct current of 5V to supply power for the control module, the commercial power detection module and the safety switch part. The specific implementation of the power supply module can adopt the prior art, for example, various step-down rectifying circuits and various switching power supply circuits, the function of converting the mains voltage into 12V or 5V direct current can be realized, or after converting the mains voltage into 12V, the direct current step-down circuit or the linear voltage stabilizer is adopted to further convert the 12V direct current into 5V direct current, and each functional module takes the power as required.
The input end of the controller is connected with the plug 2 to form a mains supply path, namely a path for the energy storage power supply to convey the mains supply to the socket. The relay part is arranged on the mains supply path and is connected with the control module, the control module controls the on-off of the power supply of the relay, and then controls the relay part to be attracted and disconnected, and then controls the on-off of the mains supply path, namely, controls whether the energy storage power supply supplies power to the mains supply socket.
More specifically, for example, a switching tube or a circuit with a switching function is arranged on a path of the power supply module for supplying power to the relay, a single chip microcomputer, a programmable logic controller and other circuits are used as a control module, the control module sends a signal for switching on the circuit to a control electrode of the switching tube, the switching tube is turned on, then the power supply path of the relay is switched on, the relay is attracted, then the mains supply path is switched on, and at the moment, the energy storage power supply supplies power to the mains supply socket. When the control module cancels the signal of switching on the circuit to the control electrode of the switching tube, the switching tube is disconnected, the relay is not powered, the relay is disconnected, the mains supply path is disconnected, and the energy storage power supply stops supplying power to the mains supply socket at the moment.
The safety switch part of the device is connected with the control module, and is used for receiving a safety switch signal formed when the safety switch part is triggered by the control module, and further is used for controlling the on/off of a mains supply path. Specifically, when the safety switch part is triggered, the control module obtains a safety switch signal, and only allows a control signal for relay actuation to be sent to the relay part. When the safety switch portion stops triggering, the control module sends a control signal for opening the relay to the relay portion, for example, the power supply to the relay is stopped.
More specifically, for example, two tact switches 22 connected in series are used as the safety switch section. When the plug of the device is inserted into the socket, the two tact switches 22 are pressed down, and the control module can obtain a high-level signal sent by the power supply module, namely the safety switch signal, which indicates that the plug of the electric connection device is correctly inserted into the socket, and at the moment, the plug cannot be touched by a person, so that the control module is allowed to send a control signal for relay attraction to the relay part. According to the actual situation, if other detection signals such as a mains supply detection signal of the device also allow the relay to be attracted, the control module sends a control signal to enable the relay to be attracted, namely, the mains supply path is connected.
When the plug of the device is separated from the socket, the two tact switches 22 are popped up, the control module cannot obtain the electric signal sent by the power supply module, the control module sends a control signal released by the relay to the relay part, namely, the relay is disconnected, the mains supply path is disconnected, the energy storage power supply stops supplying power to the mains supply socket, and at the moment, if someone touches the plug, the plug cannot be electrically injured.
The safety switch part can also take other forms, for example, a photoresistor circuit is adopted, and most basically, the positive electrode of the power supply module, the photoresistor, the pull-down resistor and the negative electrode of the power supply module are sequentially connected into a loop, and the control module is connected between the photoresistor circuit and the pull-down resistor.
When the plug of the device is not plugged into the socket, the photoresistor can obtain illumination, the resistance value is reduced, the control module can receive a high-level signal sent by the control module, and at the moment, the control module sends a control signal for switching off the relay to the relay part, namely, the mains supply path is disconnected.
When the plug of the electric connection device is plugged into the socket, the photoresistor is blocked and cannot acquire illumination, the resistance value of the photoresistor is increased, the power supply module cannot send a high-level signal to the control module, and the control module is allowed to send a suction control signal to the relay part.
The utility power detection module is configured to detect whether a utility power supply path of the relay portion near one end of the plug is electrified in advance, for example, as shown in fig. 4, before the relay portion is attracted, a left end of the relay portion, that is, a utility power supply path near an input end of the controller is electrified, and a right end of the relay portion, that is, a utility power supply path near one end of the plug should not be electrified. Unless the mains supply socket in the home has power supply, or the relay part is already closed and conducted in advance due to failure, the situation may bring about potential safety hazards. When the commercial power detection module detects that the power is charged in advance, a signal is sent to the control module, and further the control module sends a control signal for switching off the relay to the relay part, or the control module prohibits sending a switching-on control signal to the relay part, namely prohibits switching on a commercial power supply path so as to ensure the power supply safety.
Specifically, the commercial power detection module may adopt an existing buck rectification circuit, for example, one end of the buck rectification circuit is connected with a commercial power supply path of one side of the relay portion, which is close to the plug, and the other end of the buck rectification circuit is connected with the control module.
If the mains supply path is electrified in advance, 220V alternating current is converted by the step-down rectifying circuit, and then low-voltage direct current is obtained as a mains supply detection signal and is sent to the control module, and the control module judges that the mains supply path is electrified in advance.
More preferably, the utility power detection module may employ an optocoupler circuit, for example, as shown in fig. 6, and the utility power detection module 91 may include an optocoupler 92, a rectifier diode 93, a current limiting resistor 94, and a pull-up resistor 95; as shown in fig. 6, AC L is the live wire of the mains supply path to be measured, and AC N is the neutral wire of the mains supply path to be measured.
The zero line of the mains supply path to be tested, the rectifier diode 93, the current limiting resistor 94, the input end of the optocoupler and the live line of the mains supply path to be tested are sequentially connected to form a loop, so that the mains supply is rectified and limited to supply power to the light emitting device in the optocoupler 92.
The positive electrode of the power supply module, namely DC 5V as shown in fig. 6, the pull-up resistor 95, the output end of the optocoupler and the negative electrode of the power supply module, namely as shown in fig. 6, are grounded, and are sequentially connected to form a loop, and the control module is connected between the output end of the optocoupler and the pull-up resistor 95.
If the mains supply path to be measured is charged, the light emitting device in the optocoupler 92 is turned on or blinks, the output end of the optocoupler is turned on, the control module receives a low level signal as a mains supply detection signal, and the control module determines that the mains supply path is charged in advance, and sends a control signal for switching off the relay to the relay portion, or prohibits sending a switching on control signal to the relay portion, that is, prohibits switching on the mains supply path. If the mains supply path to be tested is not electrified, the light emitting device in the optocoupler 92 does not emit light, the output end of the optocoupler is disconnected, the control module receives a 5V high-level signal sent by the power supply module, and at the moment, the control module is allowed to send a suction control signal to the relay part.
The optocoupler circuit is used for detecting the mains supply path, so that the mains supply can be isolated, and the safety of the device and personnel is ensured.
The utility model discloses an electric connection device is applicable to the scene of energy storage power supply to the commercial power network power supply in home, and most typically when the power failure in home, can close the total floodgate of registering one's residence of electric wire netting in the home, with this device with energy storage power supply commercial power mouth and the socket switch-on in home, by the socket power supply in energy storage power supply to the home, then the illumination lamps and lanterns in home can normal use, small-size electrical apparatus can get the electrical work just from any socket in home, and this device can not electrified before inserting the socket moreover, can not be to the socket power transmission that has electrified, can ensure safety.
The typical operation process of the electric connection device of the scheme is as follows:
the energy storage power supply is connected with the mains supply socket by the device, namely the input end of the controller is connected with the mains supply output port of the energy storage power supply, the plug 2 is connected with the mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port of the energy storage power supply;
when the plug 2 is plugged into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the commercial power detection signal, and if the commercial power detection signal shows that the commercial power detection signal is not electrified, the control module allows sending a switch-on control signal to the relay part;
in the above step, when the safety switch signal and the mains supply detection signal are both allowed to send a switch-on control signal to the relay part, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, the control module sends an off control signal to the relay part or prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
The operation process can ensure that the pins of the plug are electrified only after the plug is inserted into the socket, so that the risk of electric shock of personnel can be avoided; the utility power detection module of the device can detect whether the power grid is electrified in advance, and allows power to be transmitted to the home power grid when the power grid is not electrified, so that damage to circuits and electric appliances can be avoided.
More preferably, the device further comprises a power detection module, wherein the power detection module is respectively connected with the input end of the controller and the control module and is used for receiving the mains supply of the input end of the controller, forming a power detection signal after conversion and sending the power detection signal to the control module, and the control module further controls the on/off of a mains supply path according to the power detection signal.
As shown in fig. 4, the power supply detection module is configured to detect whether the output voltage of the mains supply of the energy storage power supply meets the specification, and if an overvoltage and undervoltage condition is detected, the control module sends a control signal for switching off the relay to the relay part, so as to prohibit the mains supply path from being switched on.
Specifically, for example, the power supply detection module may include a buck rectifier circuit, where an input end of the buck rectifier circuit is connected to an input end of the controller, and an output end of the buck rectifier circuit is connected to a resistor in series, and after being divided by the resistor, the voltage is connected to the control module through analog-to-digital conversion. The step-down rectifying circuit converts the output electricity of the energy storage power supply into direct current, and the direct current is further divided by the series resistor to obtain low-voltage direct current, and the low-voltage direct current is connected into the control module after analog-digital conversion. For example, ten resistors with the same resistance value are connected in series and divided, so that the voltage value of the access control module is mapped into one tenth of the original direct current voltage value, and the voltage value is used as a power supply detection signal to be sent to the control module after analog-digital conversion.
The control module compares the power supply detection signal with a threshold value, and judges that the output voltage of the energy storage power supply accords with the specification within the threshold value range, and the control module allows sending a switching-on control signal to the relay part; if the power supply detection signal exceeds the threshold range, the control module judges that the output voltage of the energy storage power supply does not accord with the specification, and the control module sends a control signal for switching off the relay to the relay part, or prohibits sending a switching-on control signal to the relay part, namely prohibits switching on a mains supply path, so that only the voltage meeting the specification is ensured to supply power to the socket.
The use method and the operation process of the electric connection device adopting the preferred mode are the same as the previous method, and the steps of power supply detection are additionally added:
the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part;
when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part in the step, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, or the power supply detection signal exceeds a preset threshold value, the control module sends an off control signal to the relay part, or the control module prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
Whenever the plug of the device is separated from the socket, the safety switch signal of the device is stopped, and the control module can disconnect the relay. Or whenever the power detection module detects that the power detection signal exceeds the threshold value, the control module also turns off the relay to prohibit the energy storage power supply from supplying power to the socket.
The device can adopt one relay part to realize the on-off function, and can also adopt a plurality of relay parts to realize the on-off function in series.
For example, the relay unit may include at least a first relay unit and a second relay unit, where the first relay unit and the second relay unit are connected in series on a mains supply path, and the first relay unit is close to the input end of the controller, and the second relay unit is close to the plug 2;
the utility power detection module at least comprises a first utility power detection module and a second utility power detection module, wherein the detection end of the first utility power detection module is connected to a utility power supply path between the first relay part and the second relay part, and the detection end of the second utility power detection module is connected to the utility power supply path between the second relay part and the plug 2 and is used for respectively forming the utility power detection signals.
As shown in fig. 5, in this embodiment, two relay units are connected in series on the mains supply path, and each relay unit is controlled by a control module, and each relay unit is provided with a corresponding mains supply detection module to detect whether the mains supply path of the corresponding relay unit near one end of the plug 2 is electrified in advance.
That is, as shown in fig. 5, the detection end of the first commercial power detection module is connected to the commercial power supply path between the first relay portion and the second relay portion, and the detection end of the second commercial power detection module is connected to the commercial power supply path between the second relay portion and the plug.
By adopting the preferred scheme, after the two relays are electrified and attracted, the mains supply path is conducted, and if a single relay fails to cause error attraction, the input end of the controller and the plug are still open-circuited, so that the safety can be improved. And each commercial power detection module can detect whether the commercial power on the right side of the corresponding relay part is electrified in advance or not respectively.
More preferably, the device may further comprise an alarm device, wherein the alarm device is respectively connected with the power supply module and the control module, and is used for entering an alarm state when the control module sends an alarm starting signal to the alarm device.
The alarm device is used for informing a user that the device detects errors, such as that a mains supply path is electrified in advance, or that a power supply detection signal exceeds a threshold value. The alarm device can be in various forms such as a buzzer, an indicator light or a display screen.
The electrical connection device of the preferred embodiment is substantially identical in use and operation to the previous embodiment:
the input end of the controller is also connected with a mains supply output port of the energy storage power supply, the plug 2 is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
when the plug 2 is plugged into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part;
the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part;
slightly different, the control module will acquire the signal of each commercial power detection module respectively and control each relay portion respectively. The detection process is as follows:
the control module receives and detects the commercial power detection signal of the second commercial power detection module, and if the commercial power detection signal is not electrified, the control module receives and detects the commercial power detection signal of the first commercial power detection module; if the commercial power detection signal of the first commercial power detection module shows that the commercial power detection signal is not electrified, the control module sends a switching-on control signal to the first relay part;
The control module receives and detects the commercial power detection signal of the first commercial power detection module again, and if the display is electrified, the control module receives and detects the commercial power detection signal of the second commercial power detection module again; if the mains supply detection signal of the second mains supply detection module shows that the second relay part is not electrified, the control module allows sending a switch-on control signal to the second relay part;
when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part in the step, the control module sends the switch-on control signal to the second relay part to enable the relay part to be attracted, the mains supply path is switched on, otherwise, the control module sends the alarm starting signal, and when the safety switch signal stops or the power supply detection signal exceeds a preset threshold value, the control module sends a switch-off control signal to the relay part or prohibits sending the switch-on control signal to the relay part, and the mains supply path is switched off.
In the embodiment shown in fig. 5, the signal of the rightmost second mains detection module is detected first, if the signal shows that the mains supply path is electrified in advance, it indicates that the mains supply socket in home has been powered, or that all the relay parts have failed and have been attracted by mistake, and the control module will send an alarm starting signal to make the alarm device in an alarm state, for example, an indicator light flashes, a buzzer alarms or a display screen displays an alarm prompt. And meanwhile, the control module sends a control signal for switching off the relay to all the relay parts, or forbids all the relay parts to be electrified and cuts off a mains supply path so as to ensure the power supply safety.
If the signal of the second commercial power detection module is not displayed to be electrified in advance, the control module continues to detect the signal of the first commercial power detection module, and if the signal of the second commercial power detection module is electrified, an alarm is started and the relay is disconnected. And if the first relay part is not electrified, controlling the first relay part to be attracted.
Detecting a commercial power detection signal of the first commercial power detection module again, and if the commercial power detection signal is not electrified at the moment, indicating that the operation is abnormal, starting an alarm and switching off a relay; and if the detection is electrified, detecting the commercial power detection signal of the second commercial power detection module again.
If the mains supply detection signal of the second mains supply detection module shows electrification and still belongs to abnormal operation, an alarm is started, and the relay is disconnected; if the display is not electrified, indicating that the mains supply detection is normal, the control module allows sending an on control signal to the second relay part, i.e. allows the first relay part and the second relay part connected in series to be on.
Similarly, when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send the on control signal in the step, the second relay part is only attracted, so that the energy storage power supply supplies power to the socket. Any abnormality is detected to start the alarm device, and when the safety switch signal is stopped, or the power supply detection signal exceeds a preset threshold value, the mains supply path is disconnected.
More preferably, a manual switch may be provided for the device, for example, the device may further include a manual switch 31, where the manual switch 31 is connected with the power supply module and the control module, and is configured to send a manual switch signal to the control module when the manual switch 31 is triggered, and the control module further controls on/off of the mains supply path according to the manual switch signal.
As shown in fig. 1 to 5, a manual switch is used to manually control on/off of the mains supply path. For example, when the safety switch signal, the mains supply detection signal and the power supply detection signal are all allowable to send on control signals, the control module sends on control signals to the relay part to enable the relay part to be attracted, and the mains supply path is connected; when the manual switch is pressed again, the control module sends a disconnection control signal to the relay part to release the relay part, and the mains supply path is disconnected.
Or after the manual switch is pressed down, the control module starts the step of detecting the power supply detection signal or the step of detecting the mains supply detection signal, and when the mains supply detection signal and the power supply detection signal are both detected to be the allowable transmission on control signals, the relay part is controlled to be attracted, so that the mains supply path is connected.
The electrical connection device may further be provided with a safety device, for example, the controller 1 may further be provided with a breaking safety device 32, and the breaking safety device 32 is located at a common input end of the power supply module, the relay portion and the power supply detection module.
The breaking safety device 32 is a safety device that automatically breaks the utility power when the utility power supply current is excessive or an abnormality such as leakage occurs, for example, a fuse, an air switch, a leakage protector, or the like.
The circuit breaking safety device is arranged at the common input end, namely the total input end, of the power supply module, the relay part and the power supply detection module, and when abnormality occurs, the power supply of the energy storage power supply and the commercial power output port to the device can be disconnected, so that the safety of the device, the commercial power network and personnel is protected.

Claims (10)

1. The electric connection device comprises a controller (1), and is characterized in that the controller (1) is provided with a controller input end, the controller input end is used for being connected with a mains supply output port of an energy storage power supply, and the controller (1) is also provided with a plug (2) for being connected with a mains supply socket;
the plug (2) is provided with a pin (21), and the surface of the plug (2) facing the socket is provided with a safety switch part, so that when the plug (2) is inserted into the socket, the safety switch part is triggered to allow the input end of the controller to be communicated with the pin (21); when the plug (2) is pulled out of the socket, the safety switch part is triggered to be disconnected, so that the input end of the controller is disconnected with the pins (21);
The controller (1) is provided with a power supply module, a control module, a relay part and a mains supply detection module;
the power supply module is respectively connected with the input end of the controller and the relay part and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the relay part;
the power supply module is respectively connected with the input end of the controller and the control module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the control module;
the power supply module is respectively connected with the input end of the controller and the commercial power detection module and is used for receiving commercial power from the input end of the controller and converting the commercial power into an adaptive voltage to supply power for the commercial power detection module;
the power supply module is respectively connected with the input end of the controller and the safety switch part and is used for receiving the mains supply from the input end of the controller and converting the mains supply into an adaptive voltage to supply power for the safety switch part;
the input end of the controller is connected with the plug (2) to form a mains supply path, the relay part is arranged on the mains supply path and connected with the control module, and the relay part is used for receiving a control signal of the control module and further controlling the on/off of the mains supply path;
The control module is used for receiving a safety switch signal formed when the safety switch part is triggered, and controlling the on/off of a mains supply path according to the safety switch signal;
the utility power detection module one end is connected with the control module, and the utility power detection module other end is the detection end, the detection end is connected with the utility power supply route, and the tie point of detection end and utility power supply route is located between relay portion and plug (2), is used for the utility power detection module to detect whether the utility power supply route is electrified, and then forms the utility power detection signal and send control module, control module is according to the utility power detection signal, and then control utility power supply route switch-on/off.
2. The electrical connection device of claim 1, further comprising a power detection module, wherein the power detection module is respectively connected with the controller input end and the control module, and is configured to receive the mains supply from the controller input end, convert the mains supply to form a power detection signal, and send the power detection signal to the control module, and the control module further controls the on/off of the mains supply path according to the power detection signal.
3. The electrical connection device according to claim 1, wherein the relay portion comprises at least a first relay portion and a second relay portion, and wherein the first relay portion and the second relay portion are connected in series on a mains supply path, and wherein the first relay portion is close to the controller input and the second relay portion is close to the plug (2);
the utility power detection module at least comprises a first utility power detection module and a second utility power detection module, wherein the detection end of the first utility power detection module is connected to a utility power supply path between the first relay part and the second relay part, and the detection end of the second utility power detection module is connected to the utility power supply path between the second relay part and the plug (2) and is used for respectively forming the utility power detection signals.
4. An electrical connection device as claimed in claim 3, further comprising alarm means connected to the power supply module and the control module, respectively, for entering an alarm state when the control module sends an alarm enabling signal to the alarm means.
5. The electrical connection device according to claim 1, further comprising a manual switch (31), the manual switch (31) being connected to the power supply module and the control module, respectively, for sending a manual switch signal to the control module when the manual switch (31) is triggered, the control module controlling the mains power supply path to be switched on/off in accordance with the manual switch signal.
6. The electrical connection device according to claim 1, wherein the safety switch portion comprises at least two tact switches (22) in series, the safety switch portion being triggered when both of the at least two tact switches (22) are pressed; the plug (2) is a three-pin plug, and the at least two tact switches (22) are distributed on two sides of the grounding pin; the input end of the controller is a delta socket (11).
7. The electrical connection device according to claim 2, characterized in that the controller (1) is further provided with a breaking safety device (32), the breaking safety device (32) being located at a common input of the power supply module, the relay section and the power supply detection module.
8. A method of energizing an electrical connection device, characterized in that the method is performed using an electrical connection device according to claim 1, comprising the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug (2) is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug (2) is plugged into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the commercial power detection signal, and if the commercial power detection signal shows that the commercial power detection signal is not electrified, the control module allows sending a switch-on control signal to the relay part;
In the step b, when the safety switch signal and the mains supply detection signal are both permission signals for sending a switch-on control signal to the relay part, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, the control module sends an off control signal to the relay part or prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
9. A method of energizing an electrical connection device, characterized in that the method is performed using an electrical connection device according to claim 2, comprising the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug (2) is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug (2) is plugged into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part; the control module receives and detects the commercial power detection signal, and if the commercial power detection signal shows that the commercial power detection signal is not electrified, the control module allows sending a switch-on control signal to the relay part;
In the step b, when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part, the control module sends the switch-on control signal to the relay part to enable the relay part to be attracted, and the mains supply path is switched on; when the safety switch signal stops, or the power supply detection signal exceeds a preset threshold value, the control module sends an off control signal to the relay part, or the control module prohibits sending an on control signal to the relay part, and the mains supply path is disconnected.
10. A method of energizing an electrical connection device, characterized in that the method is performed using an electrical connection device according to claim 4, comprising the steps of:
a. the input end of the controller is connected with a mains supply output port of the energy storage power supply, the plug (2) is connected with a mains supply socket, and the energy storage power supply is started to supply power to the mains supply output port;
b. when the plug (2) is plugged into the socket, the safety switch part is triggered, the control module receives the safety switch signal, and the control module allows sending a switch-on control signal to the relay part;
the control module receives and detects the power detection signal, and if the power detection signal accords with a preset threshold value, the control module allows sending a switch-on control signal to the relay part;
Detecting a commercial power detection signal:
the control module receives and detects the commercial power detection signal of the second commercial power detection module, and if the commercial power detection signal is not electrified, the control module receives and detects the commercial power detection signal of the first commercial power detection module; if the commercial power detection signal of the first commercial power detection module shows that the commercial power detection signal is not electrified, the control module sends a switching-on control signal to the first relay part;
the control module receives and detects the commercial power detection signal of the first commercial power detection module again, and if the display is electrified, the control module receives and detects the commercial power detection signal of the second commercial power detection module again; if the mains supply detection signal of the second mains supply detection module shows that the second relay part is not electrified, the control module allows sending a switch-on control signal to the second relay part;
in the step b, when the safety switch signal, the power supply detection signal and the mains supply detection signal are all allowed to send a switch-on control signal to the relay part, the control module sends the switch-on control signal to the second relay part to enable the relay part to be attracted, the mains supply path is switched on, otherwise, the control module sends the alarm starting signal, and when the safety switch signal is stopped or the power supply detection signal exceeds a preset threshold value, the control module sends a switch-off control signal to the relay part or prohibits sending the switch-on control signal to the relay part, and the mains supply path is switched off.
CN202310874586.3A 2023-07-17 2023-07-17 Electric connection device and energizing method thereof Pending CN116885504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310874586.3A CN116885504A (en) 2023-07-17 2023-07-17 Electric connection device and energizing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310874586.3A CN116885504A (en) 2023-07-17 2023-07-17 Electric connection device and energizing method thereof

Publications (1)

Publication Number Publication Date
CN116885504A true CN116885504A (en) 2023-10-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310874586.3A Pending CN116885504A (en) 2023-07-17 2023-07-17 Electric connection device and energizing method thereof

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Country Link
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