CN212908373U - Socket system and charging equipment - Google Patents
Socket system and charging equipment Download PDFInfo
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- CN212908373U CN212908373U CN202022005535.1U CN202022005535U CN212908373U CN 212908373 U CN212908373 U CN 212908373U CN 202022005535 U CN202022005535 U CN 202022005535U CN 212908373 U CN212908373 U CN 212908373U
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Abstract
The utility model discloses a socket system is applied to battery charging outfit, and socket system includes protection module and electric quantity detection module, and when the electric current on the circuit of protection module place was greater than the electric current threshold value, protection module self disconnection cut off the electric current, and electric quantity detection module detects protection module's back end voltage and/or electric current and output, and the user of being convenient for in time learns the condition in the socket system. Therefore, the utility model can play the monitoring and protecting effects on the socket system, and improve the safety of the socket system; when the socket systems in the charging equipment share one live wire, the socket systems can not be influenced by each other in the arrangement mode, and when one socket system breaks down, the other socket systems cannot be influenced, so that the safety of the charging equipment where the socket systems are located is improved. The utility model also discloses a battery charging outfit has the same beneficial effect with above-mentioned socket system.
Description
Technical Field
The utility model relates to a safety field charges especially relates to a socket system and battery charging outfit.
Background
The electric vehicle is one of the most common transportation means in people's life at present, and it has advantages such as convenient and fast, use cost are low, low price, so the prevalence is very high.
However, in the prior art, there are many safety problems in the charging apparatus for charging the battery of the electric vehicle, such as: one or more socket systems of the charging device are not monitored and protected, and when one of the socket systems fails, the socket systems of the charging device may stop charging, so that the safety of the charging device is relatively low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a socket system and charging equipment, which can play the monitoring and protecting effects on the socket system and improve the safety of the socket system; when the socket systems in the charging equipment share one live wire, the socket systems can not be influenced mutually, when one socket system breaks down, other socket systems cannot be influenced, and the safety of the charging equipment where the socket systems are located is improved.
In order to solve the technical problem, the utility model provides a socket system is applied to battery charging outfit, include:
the first end of the protection module is connected with a live wire of the input end of the socket system, and the second end of the protection module is used as the output end of the socket system and is used for being disconnected when the current on a circuit where the protection module is located is larger than a current threshold;
and the electric quantity detection module is connected with the second end of the protection module and is used for detecting the voltage and/or the current of the second end of the protection module and outputting the voltage and/or the current.
Preferably, the method further comprises the following steps:
the first end of the controllable switch is used as the output end of the socket system, the second end of the controllable switch is connected with the second end of the protection module, and the control end of the controllable switch is connected with the switch control module;
and the switch control module is used for controlling the controllable switch to be switched on when receiving a switching-on instruction and controlling the controllable switch to be switched off when receiving a switching-off instruction.
Preferably, the controllable switch is a relay, wherein a first end of a contact of the relay serves as a first end of the controllable switch, a second end of the contact of the relay serves as a second end of the controllable switch, and a first end and a second end of a coil of the relay serve as control ends of the controllable switch.
Preferably, the switch control module includes:
the first current limiting module is used for connecting the first end of the first current limiting module as the input end of the switch control module and the second end of the first current limiting module as the control end of the switch;
the switch is connected with the first end of the coil of the relay at the first end and grounded at the second end, and is used for being switched on when a closing instruction is received and being switched off when a switching-off instruction is received;
and the second current limiting module is connected with the second end of the coil at the first end and connected with the first power supply at the second end.
Preferably, the switch is a negative-positive-negative NPN transistor, wherein a collector of the NPN transistor serves as a first end of the switch, an emitter of the NPN transistor serves as a second end of the switch, and a base of the NPN transistor serves as a control end of the switch;
the switch control module further includes:
and the first resistor is arranged between the base electrode of the NPN type triode and the ground.
Preferably, the switch control module further comprises:
and the follow current module is used for discharging the switch when the switch is disconnected.
Preferably, the method further comprises the following steps:
the plug detection module is used for detecting whether a charger is inserted into the socket system or not when the controllable switch is disconnected.
Preferably, the charger comprises an input filter capacitor;
the plug detection module includes:
the first end of the third current limiting module is used as the second end of the plug detection module, and the second end of the third current limiting module is connected with the first end of the rectification module;
the first end of the rectifying module is connected with the second end of the third current limiting module, the second end of the rectifying module is used as the first end of the plug detection module, and the rectifying module is used for rectifying alternating current provided by the live wire by matching with the input filter capacitor to obtain direct current when the controllable switch is disconnected and the charger is plugged into the socket system, and does not output the direct current when the controllable switch is disconnected and the charger is not plugged into the socket system;
the anode of a light emitting diode of the photoelectric coupler is connected with the positive output end of the rectifying module, the cathode of the light emitting diode is connected with the negative output end of the rectifying module, the collector of a photosensitive diode of the photoelectric coupler is connected with the first end of the pull-up resistor, the connected public end serves as the output end of the plug detection module, and the emitter of the photosensitive diode is grounded;
the pull-up resistor is connected with a second power supply at a second end;
and the first end of the filter capacitor is connected with the collector of the photosensitive diode, and the second end of the filter capacitor is grounded.
In order to solve the technical problem, the utility model also provides a charging device, include as above-mentioned socket system.
The utility model provides a socket system is applied to battery charging outfit, and socket system includes protection module and electric quantity detection module, and when the electric current on the circuit of protection module place was greater than the electric current threshold value, protection module self disconnection cut off the electric current, and electric quantity detection module detects protection module's rear end voltage and/or electric current and output, and the user of being convenient for in time learns the condition in the socket system. Therefore, the utility model can play the monitoring and protecting effects on the socket system, and improve the safety of the socket system; when the socket systems in the charging equipment share one live wire, the socket systems can not be influenced by each other in the arrangement mode, and when one socket system breaks down, the other socket systems cannot be influenced, so that the safety of the charging equipment where the socket systems are located is improved.
The utility model also provides a battery charging outfit has the same beneficial effect with above-mentioned socket system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a socket system provided in the present invention;
fig. 2 is a schematic structural diagram of another socket system provided by the present invention;
fig. 3 is a specific circuit diagram of another socket system provided by the present invention.
Detailed Description
The core of the utility model is to provide a socket system and a charging device, which can play the monitoring and protecting effects on the socket system and improve the safety of the socket system; when the socket systems in the charging equipment share one live wire, the socket systems can not be influenced mutually, when one socket system breaks down, other socket systems cannot be influenced, and the safety of the charging equipment where the socket systems are located is improved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a socket system according to the present invention.
The socket system is applied to charging equipment, and the socket system includes:
the protection module 1 is connected with a live wire L at the input end of the socket system at a first end and serves as an output end Y of the socket system at a second end, and is used for being disconnected when the current on a circuit where the protection module 1 is located is larger than a current threshold value;
and the electric quantity detection module 2 is connected with the second end of the protection module 1 and is used for detecting the voltage and/or the current of the second end of the protection module 1 and outputting the voltage and/or the current.
The applicant has considered that during the charging of an electric vehicle battery by a charging device, there is a need to monitor and protect one or more outlet systems in the charging device. In this embodiment, the socket system includes a protection module 1 and an electric quantity detection module 2, the protection module 1 is disposed between the live wire L and the output terminal Y, and the electric quantity detection module 2 is connected to the second terminal of the protection module 1, and is configured to detect the voltage and/or the current at the second terminal of the protection module 1. When the current of the circuit where the protection module 1 is located is larger than the current threshold, the protection module 1 is disconnected, the current of the circuit where the protection module 1 is located is cut off, and the voltage of the second end of the protection module 1 drops. In addition, the power detection module 2 detects a rear end voltage and/or current of the protection module 1 and outputs the voltage and/or current.
It should be noted that the charging device may include one or more socket systems, and when there are a plurality of socket systems in the charging device, each socket system includes the protection module 1 and the power detection module 2, even if the respective socket systems share a power line, when one of the socket systems fails, the protection module 1 is disconnected, and does not affect the other socket systems. Of course, the voltage threshold is not limited to 10V, and the voltage threshold is set according to the actual situation, and the application is not limited thereto.
In addition, the electric quantity detection module 2 generally uses an ATT7053C electric energy metering chip, but the electric quantity detection module 2 is not limited to the ATT7053C electric energy metering chip, and the present application is not limited thereto.
In consideration of cost, the protection module 1 herein generally uses a fuse, but the protection module 1 is not limited to a fuse, and the present application is not limited thereto.
To sum up, the utility model provides a pair of socket system is applied to battery charging outfit, and socket system includes protection module 1 and electric quantity detection module 2, and when the electric current on the circuit at protection module 1 place was greater than the electric current threshold value, protection module 1 self disconnection cut off the electric current, and at this moment, electric quantity detection module 2 detects that the rear end voltage of protection module 1 is less than the voltage threshold value, output fault information. The utility model can play the monitoring and protecting effect to the socket system, and improve the safety of the socket system; when the socket systems in the charging equipment share one live wire, the socket systems can not be influenced by each other in the arrangement mode, and when one socket system breaks down, the other socket systems cannot be influenced, so that the safety of the charging equipment where the socket systems are located is improved.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of another socket system provided by the present invention, and fig. 3 is a specific circuit diagram of another socket system provided by the present invention.
On the basis of the above-described embodiment:
as a preferred embodiment, further comprising:
the controllable switch 3 is used for connecting a first end serving as an output end Y of the socket system, a second end with a second end of the protection module 1 and a control end with the switch control module 4;
and the switch control module 4 is used for controlling the controllable switch 3 to be closed when receiving a closing instruction and controlling the controllable switch 3 to be opened when receiving an opening instruction.
It is considered that in practical applications, the outlet system can charge the inserted charger only if the charging condition is satisfied. In the present embodiment, a controllable switch 3 and a switch control module 4 connected to a control terminal of the controllable switch 3 are disposed between the output terminal Y of the socket system and the second terminal of the protection module 1. When the switch control module 4 receives a closing instruction, the controllable switch 3 is controlled to be closed, a circuit where the output end Y of the socket system is located is conducted, and the socket system can charge the charger; when the switch control module 4 receives the disconnection instruction, the controllable switch 3 is controlled to be disconnected, the circuit where the output end Y of the socket system is located is disconnected, and the socket system cannot charge the charger. By providing the controllable switch 3 and the switch control module 4, the socket system can be controlled to be switched on and off under different conditions.
In the case where the charging condition is satisfied, the user may perform a payment operation such as card swiping or code scanning, but the present invention is not limited thereto.
As a preferred embodiment, the controllable switch 3 is a relay, wherein a first end of a contact of the relay serves as a first end of the controllable switch 3, a second end of the contact of the relay serves as a second end of the controllable switch 3, and a first end and a second end of a coil of the relay serve as control ends of the controllable switch 3.
Considering that the current in the socket system is generally large, in order to improve the safety of the socket system, the controllable switch 3 herein adopts a relay, and the switch control module 4 controls the relay through the control end of the relay. Specifically, when the switch control module 4 receives a closing instruction, the contact of the relay is controlled to be closed, the circuit where the output end Y of the socket system is located is switched on, and the socket system can charge the charger; when the switch control module 4 receives the disconnection instruction, the contact of the control relay is disconnected, the circuit where the output end Y of the socket system is located is disconnected, and the socket system cannot charge the charger. The relay is used as the controllable switch 3, so that the on and off of the circuit can be controlled in a circuit with larger current, and the safety of the socket system is improved.
As a preferred embodiment, the switch control module 4 includes:
the first end of the first current limiting module is used as the input end of the switch control module 4, and the second end of the first current limiting module is connected with the control end of the switch;
the switch is connected with the first end of the coil of the relay at the first end and grounded at the second end, and is used for being switched on when a closing instruction is received and being switched off when a switching-off instruction is received;
and the second current limiting module is connected with the second end of the coil at the first end and the first power supply at the second end.
In order to control the controllable switch 3, in this embodiment, the switch control module 4 includes a switch, and when the input end of the switch control module 4 receives a close command, the switch is turned on to turn on the controllable switch 3, and when the input end receives an open command, the switch is turned off to turn off the controllable switch 3. The purpose of controlling the controllable switch 3 is achieved.
In order to control the magnitude of current in the circuit and improve the safety of the socket system, in this embodiment, a first current limiting module is arranged between the input end of the switch control module 4 and the control end of the switch, so that the current intensity can be reduced, the magnitude of current can be limited, and the switch can be protected; similarly, a second current limiting module is arranged between the second end of the coil and the first power supply, so that the current intensity can be reduced, the current can be limited, and the relay can be protected.
It should be noted that the first power supply is generally 12V, but is not limited to 12V, and the specific number of the first power supply is set according to the actual situation, and the present application is not limited thereto.
It should be noted that the first current limiting module and the second current limiting module are generally resistors, but are not limited to resistors, and the present application is not limited thereto.
In addition, the switch may be, but is not limited to, an NPN transistor, and the application is not limited thereto.
As a preferred embodiment, the switch is an NPN (Negative-Positive-Negative) type triode, wherein a collector of the NPN type triode is used as a first end of the switch, an emitter of the NPN type triode is used as a second end of the switch, and a base of the NPN type triode is used as a control end of the switch;
the switch control module 4 further includes:
and the first resistor is arranged between the base of the NPN type triode and the ground.
In order to avoid voltage interference, the power detection module 2 generates an error. In this embodiment, the switch is an NPN transistor driven by a current, and when the input terminal of the switch control module 4 receives the close command, the base current is generated in the first current-limiting resistor, and the NPN transistor is turned on, so that the controllable switch 3 is also turned on. Meanwhile, in order to improve the reliability of the NPN type triode, a first resistor is arranged between the base electrode and the emitting electrode of the NPN type triode and used for reducing the voltage of the base electrode, reducing interference and preventing the base electrode of the NPN type triode from being conducted by mistake when no conducting signal exists. In addition, the first NPN type triode also has the advantages of simple and reliable control.
In consideration of the on-state characteristic of the NPN transistor, the NPN transistor is turned on when the input terminal of the switch control module 4 is at a high level, and is turned off when the input terminal of the switch control module 4 is at a low level. On the basis, the switch control module 4 is set to judge that the input end of the switch control module 4 receives a closing instruction when the input end of the switch control module 4 is at a high level; when the input end of the switch control module 4 is at a low level, it is determined that the input end of the switch control module 4 receives a disconnection instruction.
Of course, the switch is not limited to the NPN type transistor, and other types of switches may also be used, but when other types of switches are used, the relationship between the high and low levels of the input end of the switch control module 4 and the closing and opening command may also change, and the application is not particularly limited herein.
As a preferred embodiment, the switch control module 4 further comprises:
and the follow current module is used for discharging the switch when the switch is disconnected.
Considering that the current on the coil of the relay cannot change abruptly, when the switch is turned off, a reverse voltage is generated across the coil of the relay, which may damage the circuit. In this embodiment, the positive electrode of the freewheeling module is connected to the first end of the coil of the relay, and the negative electrode of the freewheeling module is connected to the second end of the coil of the relay. Therefore, the safety of the relay can be improved by arranging the follow current module.
When the switch is closed, the freewheel module is turned off, and the current on the coil of the relay does not flow to the freewheel module.
As a preferred embodiment, further comprising:
and the plug detection module 5 is connected with the first end of the controllable switch 3 at the first end, the second end of the controllable switch 3 at the second end and the second end of the protection module 1 at the second end, and is used for detecting whether a charger is inserted into the socket system when the controllable switch 3 is disconnected.
It is considered that in practical applications, it is necessary to detect whether a charger is inserted into the outlet system. In this embodiment, a plug detection module 5 is provided, a first end of which is connected to the first end of the controllable switch 3, and a second end of which is connected to the second end of the controllable switch 3 and the second end of the protection module 1. Since the plug detection module 5 is connected in parallel with the controllable switch 3, the plug detection module 5 is short-circuited when the controllable switch 3 is closed; when the controllable switch 3 is turned off, the plug detection module 5 is turned on to detect whether a charger is inserted into the socket system. By means of the arrangement of the plug detection module 5, it is possible to detect whether a charger is inserted into the socket system when the controllable switch 3 is turned off.
As a preferred embodiment, the charger includes an input filter capacitor;
the plug detection module 5 includes:
a third current limiting module 51 having a first end serving as a second end of the plug detection module 5 and a second end connected to the first end of the rectifying module 52;
the rectifying module 52, of which the first end is connected with the second end of the third current limiting module 51 and the second end is used as the first end of the plug detection module 5, is used for rectifying the alternating current provided by the live wire by matching with the input filter capacitor to obtain direct current when the controllable switch 3 is disconnected and the charger is plugged into the socket system, and does not output the direct current when the controllable switch 3 is disconnected and the charger is not plugged into the socket system;
an anode of a light emitting diode of the photoelectric coupler 53 is connected with an output positive terminal of the rectifying module 52, a cathode of the light emitting diode is connected with an output negative terminal of the rectifying module 52, a collector of a photosensitive diode of the photoelectric coupler 53 is connected with a first end of a pull-up resistor, a public end of the connection serves as an output end of the plug detection module 5, and an emitter of the photosensitive diode is grounded;
the second end of the pull-up resistor is connected with a second power supply;
and the first end of the filter capacitor is connected with the collector of the photosensitive diode, and the second end of the filter capacitor is grounded.
In order to control the magnitude of the current in the circuit and improve the safety of the socket system, in this embodiment, the third current limiting module 51 is disposed between the second end of the plug detection module 5 and the first end of the rectifying module 52, so that the current intensity can be reduced, the magnitude of the current can be limited, and the rectifying module 52 can be protected.
In order to be able to detect whether a charger is inserted in the outlet system. In the present embodiment, when the controllable switch 3 is turned off and the charger is plugged into the outlet system, the ac power provided by the live line L at the input of the outlet system charges the input filter capacitor in the charger through the rectifier module 52. Specifically, when the alternating current provided by the live wire L at the input end of the socket system is in a positive half wave, the current is output from the live wire L at the input end of the socket system, is input to the 1 terminal of the rectifying module 52 (i.e., the first terminal of the rectifying module 52) through the third current limiting module 51, is output to the photocoupler 53 from the 3 terminal of the rectifying module 52 (i.e., the third terminal of the rectifying module 52), is input to the 4 terminal of the rectifying module 52 (i.e., the fourth terminal of the rectifying module 52) through the light emitting diode of the photocoupler 53, is output from the 2 terminal of the rectifying module 52 (i.e., the second terminal of the rectifying module 52), and is charged to the input filter capacitor in the; when the alternating current provided by the live wire L at the input end of the socket system is in a negative half wave, the current is output from the input filter capacitor, input from the 2-terminal of the rectifier module 52, and output from the 3-terminal of the rectifier module 52 to the photoelectric coupler 53, the current is input to the 4-terminal of the rectifier module 52 through the light emitting diode of the photoelectric coupler 53, and finally, the current is output from the 1-terminal of the rectifier module 52 and flows into the live wire L at the input end of the socket system through the third current limiting module 51. At this time, the alternating current provided by the live wire L at the input end of the socket system is rectified by the rectifying module 52 to obtain direct current; when the controllable switch 3 is switched off and the charger is not plugged into the outlet system, the plug detection module 5 is in an off state and the rectifier module 52 does not output direct current.
In this embodiment, the anode of the light emitting diode of the photocoupler 53 is connected to the positive output terminal of the rectifying module 52, and the cathode of the light emitting diode is connected to the negative output terminal of the rectifying module 52. When the rectifying module 52 outputs direct current, the light emitting diode of the photoelectric coupler 53 is conducted, so that the photosensitive diode of the photoelectric coupler 53 is conducted, the voltage of the output end of the plug detection module 5 is slowly reduced after the photosensitive diode of the photoelectric coupler 53 is conducted due to the grounding of the emitter of the photosensitive diode, the voltage of the output end of the plug detection module 5 is filtered through the filter capacitor, stable direct current is obtained, and if the stable direct current is smaller than a voltage threshold value, it is judged that a charger is inserted into the socket system; when the rectifying module 52 does not output the direct current, the light emitting diode of the photoelectric coupler 53 is turned off, so that the photosensitive diode of the photoelectric coupler 53 is turned off, at this time, since the first end of the pull-up resistor is connected with the output end of the plug detection module 5, the second end of the pull-up resistor is connected with the second power supply, the voltage at the output end of the plug detection module 5 is the voltage of the second power supply, the voltage at the output end of the plug detection module 5 is filtered through the filter capacitor, which is not difficult to obtain, at this time, the filtered voltage is greater than the voltage threshold, and at this time, it is determined that no charger is inserted in the.
It should be noted that, in order to increase the withstand voltage and the resistance power, and also to improve the safety of the circuit, the third current limiting module 51 is generally formed by connecting three 100K Ω resistors in series, but the present invention is not limited thereto.
In addition, the rectifier module 52 is generally a rectifier bridge, but is not limited to a rectifier bridge, and the application is not limited thereto.
In addition, the voltage threshold is usually 1V, but is not limited to 1V, and the voltage threshold is set according to the actual situation, and the application is not limited thereto.
It should be noted that, the rectifying module 52 rectifies the alternating current provided by the live wire L at the input end of the socket system, the obtained direct current is periodic direct current, the filter capacitor filters the periodic direct current to obtain stable direct current, and whether a charger is inserted into the socket system is determined according to the value of the stable direct current.
It should be further noted that the electric quantity detection module 2 may also detect parameters such as current, voltage, common rate, etc. in the charging process of the socket system, and when abnormal conditions such as overcurrent, overvoltage, undervoltage, etc. occur, the relay of the socket system is controlled to be turned off, so as to protect the socket system.
In addition, the second power supply is usually 3.3V, but is not limited to 3.3V, and the second power supply is set according to the actual situation, and the application is not limited in particular.
The utility model also provides a charging equipment, include like above-mentioned socket system.
It should be noted that, the charging device usually further includes a processor connected to the socket system, and the processor is configured to receive the fault information output by the power detection module 2 and notify the operation and maintenance personnel to perform the processing.
In addition, the processor is also used for detecting which socket system has the charger inserted when the charging equipment comprises a plurality of socket systems, and intelligent power-on is realized after code scanning or card swiping.
To the utility model provides a pair of charging equipment's introduction please refer to above-mentioned utility model embodiment, the utility model discloses no longer describe here.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
Claims (9)
1. A socket system applied to a charging device, comprising:
the first end of the protection module is connected with a live wire of the input end of the socket system, and the second end of the protection module is used as the output end of the socket system and is used for being disconnected when the current on a circuit where the protection module is located is larger than a current threshold;
and the electric quantity detection module is connected with the second end of the protection module and is used for detecting the voltage and/or the current of the second end of the protection module and outputting the voltage and/or the current.
2. The receptacle system of claim 1, further comprising:
the first end of the controllable switch is used as the output end of the socket system, the second end of the controllable switch is connected with the second end of the protection module, and the control end of the controllable switch is connected with the switch control module;
and the switch control module is used for controlling the controllable switch to be switched on when receiving a switching-on instruction and controlling the controllable switch to be switched off when receiving a switching-off instruction.
3. The outlet system of claim 2, wherein the controllable switch is a relay, wherein a first end of a contact of the relay serves as a first end of the controllable switch, a second end of the contact of the relay serves as a second end of the controllable switch, and a first end and a second end of a coil of the relay serve as control ends of the controllable switch.
4. The outlet system of claim 3, wherein said switch control module comprises:
the first current limiting module is used for connecting the first end of the first current limiting module as the input end of the switch control module and the second end of the first current limiting module as the control end of the switch;
the switch is connected with the first end of the coil of the relay at the first end and grounded at the second end, and is used for being switched on when a closing instruction is received and being switched off when a switching-off instruction is received;
and the second current limiting module is connected with the second end of the coil at the first end and connected with the first power supply at the second end.
5. The outlet system according to claim 4, wherein the switch is a negative-positive-negative NPN transistor, wherein a collector of the NPN transistor serves as a first terminal of the switch, an emitter of the NPN transistor serves as a second terminal of the switch, and a base of the NPN transistor serves as a control terminal of the switch;
the switch control module further includes:
and the first resistor is arranged between the base electrode of the NPN type triode and the ground.
6. The outlet system of claim 4, wherein said switch control module further comprises:
and the follow current module is used for discharging the switch when the switch is disconnected.
7. The socket system of any one of claims 2 to 6, further comprising:
the plug detection module is used for detecting whether a charger is inserted into the socket system or not when the controllable switch is disconnected.
8. The outlet system of claim 7, wherein said charger comprises an input filter capacitor;
the plug detection module includes:
the first end of the third current limiting module is used as the second end of the plug detection module, and the second end of the third current limiting module is connected with the first end of the rectification module;
the first end of the rectifying module is connected with the second end of the third current limiting module, the second end of the rectifying module is used as the first end of the plug detection module, and the rectifying module is used for rectifying alternating current provided by the live wire by matching with the input filter capacitor to obtain direct current when the controllable switch is disconnected and the charger is plugged into the socket system, and does not output the direct current when the controllable switch is disconnected and the charger is not plugged into the socket system;
the anode of a light emitting diode of the photoelectric coupler is connected with the positive output end of the rectifying module, the cathode of the light emitting diode is connected with the negative output end of the rectifying module, the collector of a photosensitive diode of the photoelectric coupler is connected with the first end of the pull-up resistor, the connected public end serves as the output end of the plug detection module, and the emitter of the photosensitive diode is grounded;
the pull-up resistor is connected with a second power supply at a second end;
and the first end of the filter capacitor is connected with the collector of the photosensitive diode, and the second end of the filter capacitor is grounded.
9. A charging device, characterized by comprising a socket system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022005535.1U CN212908373U (en) | 2020-09-14 | 2020-09-14 | Socket system and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022005535.1U CN212908373U (en) | 2020-09-14 | 2020-09-14 | Socket system and charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212908373U true CN212908373U (en) | 2021-04-06 |
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ID=75257608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022005535.1U Active CN212908373U (en) | 2020-09-14 | 2020-09-14 | Socket system and charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212908373U (en) |
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2020
- 2020-09-14 CN CN202022005535.1U patent/CN212908373U/en active Active
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