CN211081315U

CN211081315U - Pulse electronic lock control circuit

Info

Publication number: CN211081315U
Application number: CN201921193238.5U
Authority: CN
Inventors: 邓永辉; 刘得付; 郭中高; 黄兴华; 瞿俊; 杨士雄; 黄燕明; 吴宇灿; 洪铭; 吴楚; 陈松涛
Original assignee: Shenzhen Qihui Electrical Co ltd
Current assignee: Shenzhen Jinqihui Electric Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-07-24
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a pulse electronic lock control circuit, include: an input terminal, a first relay, and an output terminal; the input terminal is used for receiving working voltage for supplying power to the first relay, and the input terminal is connected with the first relay through at least one diode; a first capacitor is arranged between the first relay and the output terminal; the first capacitor receives the output voltage of the first relay and outputs a forward or reverse pulse signal to the output terminal; and the output terminal is connected with a locking circuit of the pulse electronic lock. The utility model provides a pulse electronic lock control circuit when filling electric pile and stopping to charge need not manual machinery ground disconnection pulse electronic lock, can the automatic unblock, has realized the automated control who fills electric pile.

Description

Pulse electronic lock control circuit

Technical Field

The utility model belongs to the technical field of pulse electronic lock and specifically relates to a pulse electronic lock control circuit.

Background

The pulse electronic lock, also called pulse electronic lock, is a lock driven by current pulse signal. When a positive pulse level pulse is applied, the electronic lock locks; and when a reverse pulse level is applied, the electronic lock is unlocked. The pulse electronic lock does not need to supply power for a long time, has low power consumption, and is widely applied to the charging pile of the electric automobile at present.

In the charging process of the electric automobile, the charging plug is inserted into the charging socket and coupled with the structure and the electricity of the socket, so that charging is realized. The pulse electronic lock is generally installed on a charging socket and used for locking with the charging socket. When the pulse electronic lock is in a locking state, the charging plug can be locked on the charging socket; when charging is finished, the pulse electronic lock is converted into an unlocking state, and the charging plug can be taken down from the charging socket.

However, the existing charging pile basically adopts a direct control mode, a pulse electronic lock needs to be manually disconnected after charging is completed, the operation process is complicated, and the charging pile is inconvenient to use.

Disclosure of Invention

For overcoming prior art's shortcoming, the utility model provides a pulse electronic lock control circuit to solve the electric automobile and charge the completion back, the problem of pulse electronic lock automatic unlocking can not.

The pulse electronic lock control circuit is characterized by comprising an input terminal, a first relay and an output terminal; the input terminal is used for receiving working voltage for supplying power to the first relay, and the input terminal is connected with the first relay through at least one diode; a first capacitor is arranged between the first relay and the output terminal; the first capacitor receives the output voltage of the first relay and outputs a forward or reverse pulse signal to the output terminal; and the output terminal is connected with a locking circuit of the pulse electronic lock.

optionally, the pulse electronic lock control circuit further comprises an L ED lamp and a resistor, the L ED lamp and the resistor are connected in series and arranged between the first relay and the output terminal, and a line where the L ED lamp and the resistor are located is connected with the first capacitor in parallel.

Optionally, a voltage control module is connected to the outside of the input terminal; the voltage control module is used for outputting a preset direct current voltage value to the input terminal.

Optionally, the voltage control module is externally connected to the charging pile main control module, and the charging pile main control module is configured to send a control signal to the voltage control module and perform performance control on the voltage control module.

Optionally, the voltage control module comprises: a second relay and a triode; the charging pile main control module is connected with the second relay through the triode; and the voltage output port of the second relay is connected with the input terminal.

Optionally, a second capacitor is provided between the power supply and ground of the voltage control module.

Optionally, the first capacitor is an electrolytic capacitor.

The utility model provides a pulse electronic lock control circuit, input terminal are used for receiving the operating voltage for the power supply of first relay from the outside; after the first relay is started, the first relay can output different voltages to the first capacitor according to the working voltage by virtue of the conduction action of the diode, so that the first capacitor can output forward or reverse pulse signals to the output terminal. When a locking circuit of the pulse electronic lock receives a forward pulse signal through an output terminal, the pulse electronic lock is in a locking state; when a locking circuit of the pulse electronic lock receives a reverse pulse signal through an output terminal, the pulse electronic lock is in an unlocking state; by means of the operation of the pulse electronic lock control circuit, the pulse electronic lock can be automatically unlocked after the electric automobile is charged, a user does not need to manually disconnect the pulse electronic lock, and the operation steps are simplified.

Drawings

Fig. 1 is a schematic diagram of an application environment of a pulse electronic lock control circuit in an embodiment of the present invention;

Fig. 2 is a schematic diagram of an internal circuit of a pulse electronic lock control circuit according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the external voltage control module of the pulse electronic lock control circuit in the embodiment of the present invention;

Fig. 4 is a schematic circuit diagram of the pulse electronic lock control circuit in the embodiment of the present invention after being externally connected to the voltage control module.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A schematic diagram of an application environment of a pulsed electronic lock control circuit is shown in fig. 1. The charging pile main control module is a control unit for charging management of the electric automobile, and can send a control signal to the pulse electronic lock control circuit, so that the pulse electronic lock control circuit can control locking or unlocking of the pulse electronic lock. A locking circuit on the pulse electronic lock is a realization circuit for controlling the pulse electronic lock. The utility model provides a pulse electronic lock control circuit's input is connected with charging pile main control module; the output end is connected with a locking circuit of the pulse electronic lock.

specifically, the internal circuit structure of the pulsed electronic lock control circuit is shown IN fig. 2, J1 and J2 are an input terminal and an output terminal respectively, 1 pin IN-of J1 and 1 pin OUT-of J2, 2 pin IN + of J1 and 2 pin OUT + of J2 form a closed loop, R L Y1 is a first relay, when J1 receives an operating voltage for supplying power to R L Y1, R L Y1 attracts and supplies a forward current, namely a forward pulse signal, to J2 through a first capacitor EC, so that a forward pulse level signal is output to a locking circuit of the pulsed electronic lock, so that the pulsed electronic lock is IN a locked state, and when J1 stops supplying power to R L Y1, R L Y1 is opened, the first capacitor EC enters a discharged state, a reverse current, namely a reverse pulse signal, is supplied to J2, so that a reverse pulse level signal is output to the locking circuit of the pulsed electronic lock, so that the pulsed electronic lock is IN an unlocked state, the pulsed electronic lock is IN which the input terminal of the pulsed electronic lock is controlled by a plurality of diodes 1, a plurality of relays R3, a plurality of relays 1, a plurality of relays 3684, a plurality of relays.

Preferably, the first capacitor EC is an electrolytic capacitor, the capacity of the capacitor is 10000 microfarads, the capacitor has strong energy storage capacity, and a strong reverse current can be formed when the capacitor discharges; the diodes D1, D2, and D3 are 1N5048 silicon rectifier diodes, which have a withstand voltage of 1000V and a maximum operating current of 3A.

further, in one embodiment, as shown in fig. 2, a series connection of the led lamp and the resistor R1 is provided between the first relay R L Y1 and the output terminal J1, the line of the led lamp and the resistor L is connected in parallel with the first capacitor, the led lamp and the resistor R1 are connected in series and can be used for indicating the charging and discharging processes of the first capacitor EC, and preferably, the resistance value of the resistor R1 is 1.2K ohms.

Further, in one embodiment, as shown in fig. 3, the input terminal is externally connected with a voltage control module; the voltage control module is used for outputting a preset direct current voltage value to the input terminal. The voltage control module is used for supplying power to the input terminal and outputting a preset direct-current voltage value for the pulse electronic lock control circuit.

Because the charging pile main control module usually adopts a single chip microcomputer or an MCU (Micro Controller Unit) and the like, the level output by the charging pile main control module is a unidirectional and fixed value, and the pulse electronic lock control circuit cannot be flexibly controlled, so that the charging pile main control module can indirectly realize the operation control of the pulse electronic lock control circuit by controlling the voltage control module.

specifically, as shown in fig. 4, the voltage control module includes a second relay R L803, a transistor Q804, and a second capacitor c808, where an operating voltage of R L803V is 5V, a pin 1 of the voltage control module is connected to a dc voltage VDD _5V, a pin 2 of the voltage control module is used to receive a level control signal from a pin DO _ DZS1, a pin DO _ DZS1 is an output pin of the level control signal of the charging post main control module, a pin 3 of the pin R L803 is used to output a 12V dc voltage to the pulsed electronic lock control circuit, and a pin 4 of the pin R L803 is connected to a power supply pin YK _ DZS1 of the pulsed electronic lock.

when the pin DO _ DZS1 outputs a high level, the transistor Q804 is turned on so that the R L803 obtains a 5V working voltage, and is in a working state, and the

pins

3 and 4 of the R L803 are attracted, and a 12V dc voltage is output to the pulse electronic lock control circuit connected to the pin 3, that is, a voltage is output to the input terminal J1, so that the pulse electronic lock control circuit outputs a forward pulse signal to the output terminal, correspondingly, when the pin DO _ DZS1 outputs a low level, the R L803 loses the working voltage, the

pins

3 and 4 are disconnected, so that the input terminal J1 loses the 12V dc voltage, and the pulse electronic lock control circuit outputs a reverse pulse signal to the output terminal.

In addition, as shown in fig. 4, the circuit further includes resistors R809, R810, capacitors C810, C811, a diode D803, and a ground GND — 12V of 12V. The matching of the resistor, the capacitor, the diode and the grounding terminal is used for optimizing the electrical characteristics of the whole circuit. Preferably, the R809 parameter is 10K ohm 1% precision; the R810 parameter is 10K ohm 1% precision; the C810 parameter is 0.1uF/50V, namely the capacitance value of the capacitor is 0.1 microfarad, and the rated voltage is 50V; the C811 parameter is 10 nF/50V/10%, namely the capacitance value is 10 nano method, the rated voltage is 50V, and the capacitance value precision is 10%; the triode Q804 adopts SS8050, and is an NPN type general middle power tube.

In this embodiment, fill electric pile main control module with the help of controlling voltage control module, can avoid filling the disadvantage of electric pile main control module output one-way fixed level, through voltage control module indirect, nimble control pulse electronic lock control circuit's operating condition.

as shown in fig. 4, the second capacitor is C808, preferably, the parameter of C808 is 10uF/25v, and the second capacitor is used to temporarily supply power to R L803 when the level output by the pin DO _ DZS1 is abnormal, so as to protect R L803.

It is right above the utility model discloses pulse electronic lock control circuit has been elucidated for help understands the utility model discloses, nevertheless the utility model discloses an embodiment does not receive the restriction of above-mentioned embodiment, and any does not deviate from the utility model discloses change, modification, substitution, combination, simplification made under the principle all should be equivalent replacement mode, all contain within the protection scope the utility model discloses a.

Claims

1. The pulse electronic lock control circuit is characterized by comprising an input terminal, a first relay and an output terminal; the input terminal is used for receiving working voltage for supplying power to the first relay, and the input terminal is connected with the first relay through at least one diode; a first capacitor is arranged between the first relay and the output terminal; the first capacitor receives the output voltage of the first relay and outputs a forward or reverse pulse signal to the output terminal; and the output terminal is connected with a locking circuit of the pulse electronic lock.

2. the pulse electronic lock control circuit according to claim 1, further comprising an L ED lamp and a resistor, wherein the L ED lamp and the resistor are connected in series between the first relay and the output terminal, and a line where the L ED lamp and the resistor are connected is connected in parallel with the first capacitor.

3. The pulsed electronic lock control circuit according to claim 1, wherein a voltage control module is externally connected to the input terminal; the voltage control module is used for outputting a preset direct current voltage value to the input terminal.

4. The pulsed electronic lock control circuit according to claim 3, wherein the voltage control module is externally connected to a charging pile main control module, and the charging pile main control module is configured to send a control signal to the voltage control module and perform enable control on the voltage control module.

5. The pulsed electronic lock control circuit according to claim 4, wherein the voltage control module comprises: a second relay and a triode; the charging pile main control module is connected with the second relay through the triode; and the voltage output port of the second relay is connected with the input terminal.

6. The pulsed electronic lock control circuit according to claim 3, wherein a second capacitor is provided between the power supply and ground of the voltage control module.

7. The pulsed electronic lock control circuit of any one of claims 1 to 6 wherein the first capacitor is an electrolytic capacitor.