CN102916469B - Extension anti-misoperation key charge controller - Google Patents

Abstract

An extended type anti-misoperation key charging controller belongs to an intelligent charging device for computer keys. The five-proof computer key is loaded in the charging box, and the five-proof computer key is connected to the charging and supply circuit of the battery. The battery charging judging circuit is mainly composed of an operational amplifier, the pulsation oscillation circuit is mainly composed of a six-inverter gate circuit and a thyristor, and the clock control circuit is mainly composed of a clock chip. The invention charges the computer key regularly through the charging judging circuit, the pulsating circuit and the clock control circuit, thereby effectively reducing thermal floating charge, avoiding the disadvantage of fast aging and discarding of the storage battery, and prolonging the life of the storage battery of the computer key; the opening of the charging box, and the extension of the computer key , Compact structure, convenient and practical.

Description

Extended anti-misoperation key charge controller

technical field

The invention relates to a charging device, in particular to an intelligent charging device for computer keys.

Background technique

The invention relates to a microcomputer misuse prevention key widely used in an electric power system, which is powered by a storage battery due to its mobile working mode. In order to have enough electric energy for work, and in order to have long-term sales benefits, manufacturers generally adopt long-term charging (including charging and floating) methods for batteries. It is easy to detect, no matter what stage of charging, as long as the power supply is not cut off, the temperature of the battery is higher than normal temperature, because the internal chemical elements and charges are in motion. If it is in thermal saturation state for a long time, the attenuation and aging will inevitably be accelerated, and the service life will be greatly shortened.

The anti-misoperation key is damaged quickly, which seriously affects the complete execution of the operating procedures, and there are potential safety hazards. During the damage treatment, no matter whether the battery or the instrument is replaced, the investment cost and environmental pollution will increase. Therefore, it is necessary to try to extend the service life of the key and reduce the amount of scrap.

Contents of the invention

The object of the present invention is to provide an extended type anti-misoperation key charging controller for fast charging and time-limited standby charging of computer keys.

The object of the present invention is achieved in the following way: an extended type anti-misoperation key charging controller, including a charging box containing five anti-computer keys, the five anti-computer keys are connected in the charging circuit of the storage battery EC, and also have,

Battery charging judgment circuit: the inverting input terminal of operational amplifier IC1 is connected in series with resistor R2 and then connected to the positive pole of battery EC, the positive phase input terminal of operational amplifier IC1 is connected in series with resistor R1 and then connected to the positive pole of battery EC, and the operational amplifier IC1 The positive phase input terminal is connected to the negative pole of the voltage regulator diode WY1, the positive pole of the voltage regulator diode WY1 is connected to the negative pole of the battery EC, the inverting input terminal of the operational amplifier IC1 is connected in series with the resistor R3 and then connected to the negative pole of the battery EC, and the operational amplifier IC1 The output terminal is connected to the base of the composite triode BG1-2, the emitter of the composite transistor BG1-2 is connected in series with the resistor R4 and then connected to the negative pole of the battery EC, and the collector of the composite transistor BG1-2 is connected in series with the relay J1 and the light-emitting diode Fg1 is then connected to the positive pole of the battery EC, the 4 pins of the input socket CZ1 are connected to the negative pole of the battery EC, the 2 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg3 and then connected to the positive pole of the battery EC, and the 1 pin of the input socket CZ1 is connected in series with the relay J1 The normally open node J1-1 and the light-emitting diode Fg2 are connected to the positive pole of the battery EC;

AC-DC power supply and pulsating circuit: 220V AC is connected to the primary coil of transformer B, and the secondary coil of transformer B is connected to the input terminal of rectifier D1-4, and the positive output terminal of rectifier D1-4 is sequentially connected in series with voltage stabilizing integrated block WY2 and potentiometer W1 , thyristor KG and LED FG6 are connected to pin 1 of output socket CZ2, capacitor C1 is connected between the positive and negative output ends of rectifier D1-4, and pin 14 of six-inverter chip IC2 is connected to the voltage regulator integrated block The junction of WY2 and potentiometer W1, pin 7 of six-inverter chip IC2 is connected to pin 4 of output socket CZ2 and the negative output terminal of rectifier D1-4 at the same time, pin 8 of six-inverter chip IC2 is connected in series with bidirectional diode D5 Connected to the control pin of the thyristor KG, the 14-pin of the six-inverter chip IC2 is connected in series with resistor R6 and resistor R7, and then connected to the 7-pin of the six-inverter chip IC2, and the 2-pin of the output socket CZ2 is serially connected to emit light The normally open node J2-1 of the diode Fg7 and the relay J2 is connected to the output terminal of the thyristor KG;

Pins 1, 2, 3, and 4 of the above-mentioned input socket CZ1 are respectively connected to pins 1, 2, 3, and 4 of the output socket CZ2;

Clock control circuit: 9 pins of clock chip IC3 are connected in series with switch K3 and switch K7 in sequence and then connected to 8 pins of IC3, and 10 pins of clock chip IC3 are connected in series with switch K4 and switch K8 in sequence and then connected to 8 pins of IC3. Pin 11 of clock chip IC3 is connected in series with switch K5 and switch K9 and then connected to pin 8 of IC3, pin 12 of clock chip IC3 is connected in series with switch K6 in sequence and then connected to pin 7 of IC3, pin 3 of IC3 is connected to the compound The base of the triode BG3-4, the emitter of the compound triode BG3-4 are connected to the E- pole of the working power supply, the collector of the compound triode BG3-4 is connected in series with the relay J2 and then connected to the working power E+ pole, and the 14 pin of IC3 is connected to the The E-pole of the working power supply, the 13-pin of IC3 is connected in series with the resistor R71 to the E-pole of the working power supply, and the 13-pin of IC3 is connected to the node of the resistor R6 and the resistor R7.

The 3 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg4 and then connected to the positive pole of the battery EC; the 4 pins of the clock chip IC3 are connected to the base of the compound triode BG5-6, and the emitter of the compound triode BG5-6 is connected to the working power E - pole, the collector of the compound triode BG5-6 is connected in series with the relay J3 and then connected to the working power E+ pole; the 3 pins of the output socket CZ2 are sequentially connected in series with the light-emitting diode FG8 and the normally open node J3-1 of the relay J3 At the output end of the thyristor KG;

The structure of the charging box is: a cuboid shape surrounded by the left vertical board, the rear vertical board, the right vertical board, the front side vertical board and the bottom board, the left vertical board, the rear side vertical board and the right vertical board The height of the front side is the same, the height of the front side is lower than the height of the left side, the middle partition is fixed on the top of the front main board, and the top of the middle partition is formed by the left side, the rear side and the right side. The enclosed space can accommodate the five-proof computer key. After the five-proof computer key is placed in the space, the top of the five-proof computer key protrudes upwards from the space by 10cm; The charging terminal contacts the two spring seats connected; there is a red marking line on the computer key to ensure the alignment of the charging port;

The clock control circuit also has a display screen, which is set on the front vertical plate of the charging box, and the switches K3-K9 of the clock control circuit are all set on the front vertical plate of the charging box.

Compared with prior art, the beneficial effect of the present invention is:

1. The computer key is automatically and regularly charged through the power judging circuit, pulse circuit and clock control circuit, effectively reducing thermal floating charge, avoiding the disadvantages of fast aging and discarding of the battery, and prolonging the life of the battery of the computer key.

2. The structure of the charging box is compact, convenient and practical. The characteristics of this extended anti-misoperation key charging controller will be further elaborated in conjunction with specific implementations.

Description of drawings

Figure 1 is a block diagram of the electrical principle of the charge controller.

Figure 2 is a circuit diagram of battery (energy storage and) charging judgment.

Figure 3 is a diagram of the AC and DC power supply and the pulsating circuit.

Figure 4 is a clock control circuit diagram.

Figure 5-1, Figure 5-2 and Figure 5-3 are the front view, side view and rear view of the five-proof computer key charging box respectively.

Figure 6-1, Figure 6-2 and Figure 6-3 are the front view, side view and top view of the (multi-function) charging box, respectively.

Figure 7-1 is a perspective view of the charging box.

Figure 7-2 is a perspective view of the five-proof computer key in the charging box shown in Figure 7-1.

detailed description

Structural principle: To prolong the service life of the five-proof computer key battery and reduce the problem of rapid aging and discarding, the key point is to reduce thermal floating charge. For this reason, the inventor has carried out the design and development work of the anti-misuse key battery charging controller and the loading box . Specifically shown in Figure 1.

As can be seen from Figure 1, the device consists of two parts, the electrical control and the loading box.

The electrical part is designed with a reference voltage, which is compared with the actual voltage value extracted from the computer key body in the comparison circuit formed by the integrated operational amplifier. When the power is sufficient, no charging is performed; when the power drops below the rated value, Then a power shortage indication signal is sent, and the fast charging control circuit is connected to the pulse power supply for emergency charging at the same time. When the power is sufficient, the controller accepts the interrupt command sent by the comparison judgment circuit, cuts off the power supply, and stops charging.

The electrical also includes the clock control part. There is an intelligent clock chip inside, and through the cooperation of software and hardware circuits, it implements time calibration and timing settings. After setting, when the time is up, the control signal is output, and the pulsating voltage is started at the same time to charge the five-proof computer key. According to this design, in the standby state, it needs to be charged for two hours a day to supplement leakage electric energy and prevent damp. Two hours later, the smart chip outputs another control signal to turn off the charging power. In this way, it is realized that in the standby state, there is sufficient power for use every day, and it is in a cold state most of the time, eliminating the phenomenon of long-term thermal floating charge, which will inevitably greatly improve the service life of the computer key.

The instrument loading box is made of plastic molds, in which the fast charging and clock control devices must be placed, the anti-misuse key must be placed, and the charging port must be accurately docked. At the same time, issues such as easy access must also be considered. Therefore, it has been extended outwards to form a loading facility that is different from compact and sealed conventional instruments.

Circuit design: As shown in the block diagram, the inventor has implemented the design and production of circuits such as battery energy storage monitoring, power shortage fast charging, frequency oscillation, pulsating power supply, and clock control, which will be introduced in conjunction with each circuit diagram.

Figure 2 shows the battery charging judging circuit: the inverting input terminal of the operational amplifier IC1 is connected in series with the positive pole of the battery EC after a resistor R2 is connected, the positive phase input terminal of the operational amplifier IC1 is connected in series with the positive pole of the battery EC after a resistor R1, and The positive phase input terminal of the operational amplifier IC1 is connected to the negative pole of the regulator diode WY1, the positive pole of the voltage regulator diode WY1 is connected to the negative pole of the battery EC, the inverting input terminal of the operational amplifier IC1 is connected in series with the resistor R3 and then connected to the negative pole of the battery EC, The output terminal of the operational amplifier IC1 is connected to the base of the composite triode BG1-2, the emitter of the composite transistor BG1-2 is connected in series with the resistor R4 and then connected to the negative pole of the battery EC, and the collector of the composite transistor BG1-2 is connected in series with the relay J1 and light-emitting diode Fg1 are connected to the positive pole of the battery EC, the 4 pins of the input socket CZ1 are connected to the negative pole of the battery EC, the 2 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg3, and then connected to the positive pole of the battery EC, and the 1 pin of the input socket CZ1 is sequentially connected The normally open node J1-1 of the relay J1 and the light-emitting diode Fg2 are connected in series to the positive pole of the storage battery EC.

In Figure 2, WY1 is set as the reference voltage, the energy stored in the battery is collected through R2 and R3, and the voltage is compared and judged in combination with the integrated operational amplifier IC1, the power is turned over, the relay J1 is started, the normally open node J1-1 is closed, and it is turned on The pulsating power from the sockets CZ1 and CZ2 charges the storage battery quickly.

Figure 3 shows the AC and DC power supply and the pulsating circuit: 220V AC is connected to the primary coil of transformer B, the secondary coil of transformer B is connected to the input terminal of rectifier D1-4, and the positive output terminal of rectifier D1-4 is connected in series to the voltage stabilizing integrated block WY2 , potentiometer W1, thyristor KG and light-emitting diode FG6 are connected to pin 1 of output socket CZ2, capacitor C1 is connected between the positive and negative output terminals of rectifier D1-4, and pin 14 of six-inverter chip IC2 is connected to The junction of the voltage regulator integrated block WY2 and the potentiometer W1, the 7-pin of the six-inverter chip IC2 is connected to the 4-pin of the output socket CZ2 and the negative output terminal of the rectifier D1-4, and the 8-pin of the six-inverter chip IC2 is connected in series The bidirectional diode D5 is connected to the control pin of the thyristor KG, the 14-pin of the six-inverter chip IC2 is connected in series with the resistor R6 and the resistor R7, and then connected to the 7-pin of the six-inverter chip IC2, and the resistor R6 and the resistor R7 are connected in the middle The lead line at the pin 13 of the clock chip IC3, the pin 2 of the output socket CZ2 is connected in series with the light-emitting diode Fg7 and the normally open node J2-1 of the relay J2, and then connected to the output terminal of the thyristor KG;

Pins 1, 2, 3, and 4 of the input socket CZ1 are respectively connected to pins 1, 2, 3, and 4 of the output socket CZ2.

In Figure 3, AC and DC conversions are first performed, and the voltage is stabilized by WY2 to provide working power, and low-frequency oscillation is realized in the six-inverter circuit IC2 to control the on-off of the thyristor and send out pulsating power for different circuits. Battery charging under control.

Figure 4 shows the clock control circuit: the 9 pins of the clock chip IC3 are connected in series with the switch K3 and the switch K7 and then connected to the 8 pins of IC3, and the 10 pins of the clock chip IC3 are connected in series with the switch K4 and the switch K8 and then connected to IC3 8 pins of the clock chip IC3, the 11 pins of the clock chip IC3 are connected in series with the switch K5 and switch K9, and then connected to the 8 pins of IC3, and the 12 pins of the clock chip IC3 are connected in series with the switch K6, and then connected to the 7 pins of IC3, and the 3 pins of IC3 The foot is connected to the base of the composite transistor BG3-4, the emitter of the composite transistor BG3-4 is connected to the E- pole of the working power supply, the collector of the composite transistor BG3-4 is connected in series with the relay J2 and then connected to the E+ pole of the working power supply, and the IC3 The 14-pin is connected to the E-pole of the working power supply, the 13-pin of IC3 is connected to the E-pole of the working power supply in series, and the 13-pin of IC3 is connected to the middle connection line of the resistors R6 and R7 in series (the working power supply E+, E- comes from WY2 positive and negative output).

Figure 4 is the clock control circuit, the circuit is centered on the clock chip IC3, connected with the pins as shown in the figure, through the switches K3-K9, it can realize time calibration, timing and adjustment settings of week, hour and minute. The focus of our design is to guarantee daily charging in standby mode, but limit charging to two hours. Therefore, in Figure 4, when the set turn-on time arrives, pin 3 of IC3 outputs a high level, making the composite power amplifier BG3-4 conduction, the relay J2 starts, and the normally open node J2-1 closes, which will turn on the thyristor KG The incoming pulsating voltage is transmitted to the second pin of the output socket CZ2, and connected to the input socket CZ1 on the side of the computer key through a cable, and the second pin of CZ1 is also powered, and the battery is charged through the Fg3 branch. When the two-hour charging time ends, IC3 pin 3 loses power, BG3-4 is cut off, relay J2 is closed, normally open node J2-1 is disconnected, and charging stops.

The 3 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg4 and then connected to the positive pole of the battery EC; the 4 pins of the clock chip IC3 are connected to the base of the compound triode BG5-6, and the emitter of the compound triode BG5-6 is connected to the E- pole of the working power supply , the composite triode BG5-6 collector is connected in series with the relay J3 and then connected to the working power E+ pole; the 3 pins of the output socket CZ2 are sequentially connected in series with the light-emitting diode FG8 and the normally open node J3-1 of the relay J3 and then connected to the available The output terminal of the silicon-controlled KG;

Above pin 4 of IC3, relay J3 and normally open node J3-1 branch is a backup design for multiple time periods, and can be set and controlled for another time period according to needs.

Through the processing and manufacturing of the above circuit, installation and debugging, the sub-functions are realized. The remaining problem is how to go online as a whole and assemble it with the computer key to achieve the design purpose of multi-functional charging control. The inventor has carried out the processing and making of the mold of the loading box, which not only allows the computer key, various devices, circuit boards, etc. to be put in, but also aligns the ports to realize charging control.

Design of the charging box: After the circuit design and debugging are completed, as the composition of the charger, we must consider the placement of the anti-misuse key, the connection of the port, and the overall assembly. For this reason, we have designed and manufactured the charging box, as shown in Figure 5 The structure of the charging box is: a cuboid surrounded by the left vertical plate, rear vertical plate, right vertical plate, front vertical plate and bottom plate, the height of the left vertical plate, rear vertical plate and right vertical plate Similarly, the height of the front vertical board is lower than that of the left vertical board, the middle partition is fixed on the top of the front main board, and the top of the middle partition is surrounded by the left vertical board, the rear vertical board and the right vertical board The space of the five-proof computer key can accommodate the five-proof computer key. After the five-proof computer key is placed in the space, the top of the five-proof computer key protrudes upwards from the space by 10cm; The four or two spring seats connected by the head contact; a red marking line is added on the computer key to ensure the alignment of the charging port; the clock control circuit also has a display screen, which is set on the front side of the charging box. The switches K3-K9 of the clock control circuit are all arranged on the front vertical plate of the charging box.

Figure 5-1 is the anti-misoperation diagram depicting the front view of the five-proof key, from which you can see that there are plastic code verifiers, metal key columns, voice holes, operation program display screens, operation keys and factory names on the top; 5-2 is a side view; the difference is that Figure 5-3 does not draw a top view, but a rear view, because in this way you can see the connection of the five-proof key - the upper two circles are charging ports, and the lower two circles are communication ports, each circle is a metal node.

The computer key is a purchased part. Figure 5-1 is a commonly used model selected as an example. The length, width and height of the computer key are 70×30×135mm.

Figure 6-1 is a front view of the charging box, Figure 6-2 is a side view of the charging box, and Figure 6-3 is a top view of the charging box, the dotted line indicates that the front end is a fracture, and what you see is the rear baffle.

The four metal terminals on the back of the computer key are correspondingly installed with four spring seats in the upper frame of Figure A. The inner terminals of the spring seat are connected to the charging power supply or communication line, and the outer terminals are connected to the four metal points of the computer key. Connected together, because the potential energy of the spring has a certain jacking force, making it more closely contacted.

The two edges of the upper frame and the middle baffle are raised to form a clamping groove for preventing misuse of the key, and the key is placed in the groove and locked. As shown in Figure 6-3, the front end of the groove removes the rising edge to form an opening, so that a part of the computer key can protrude outwards, which is convenient for placing and taking.

The time control part is installed below, as can be seen from the figure, there are setting keys for time adjustment, timing, week, hour, and minute, as well as state keys for selecting all-pass, full-stop and time-controlled input, as well as the elimination and setting of data. Resume key. These are all realized by internal intelligent functions.

Figure 6-1 is relatively concise, but the rising edge, opening, and assembly are not very clear. Therefore, the inventor has drawn a related perspective view, hoping to be more clear.

Figure 7-1 is a perspective view of the charging box, and Figure 7-2 is the general assembly diagram of the anti-misoperation key and time controller in the charging box.

Among them, the upper part of Figure 7-1 is the charging and loading box of the anti-misoperation key, and the lower part is the time adjustment control part. The length, width and height are 90×30×195mm (the opening height of the front vertical plate is 115mm), and the edge, five-proof key placement slot, etc. are designed. There are a few points that need special explanation:

1. The four multi-circle circles represent the spring column port, which has a certain potential energy and top force. When the computer key is placed flat, it uses its own gravity to press down, so that the upper and lower ports are in closer contact when charging;

2. Considering that the position of the anti-misuse key is limited by the position of the charging port, it must not be loosened or displaced, so we first added 10mm edges on both sides, and the size of the anti-misuse key in Figure 5 was expanded from 70mm to 90mm; At the same time, it is raised by 30mm, so that a groove is formed so that the key can be put down and fastened;

3. The computer key is a rectangular parallelepiped, so it is easy to put it away and easy to take it out. If it is fully enclosed and locked tightly, it cannot be done. Therefore, in combination with Figure 7-1 and Figure 7-2, we have designed a treatment method of "keeping the bottom, removing the edge, and opening" on the upper edge, so that the anti-misuse key has 10mm, plus a code verifier, and a metal key post The front end of a total of about 30mm can extend out of the charger, so that it is very convenient to place and take the front end of the key;

4. Add a red dotted line on the key, which is the position mark. When placing the line, make the line coincide with the upper edge of the loading box, so that the charging metal circle can be connected with the spring support to ensure the charging effect.

The perspective view of the five-proof key (connected to the EC power supply circuit of the battery), which is put into the designed charger box, forms the overall shape of Figure 7-2. Finally, after setting the start and stop time, it can be used for charging control.

From the above diagram, it can be seen that the anti-misoperation key charging controller is integrated from mechanical to electrical, and it is fully considered, compact in structure, complete, feasible and reliable.

Claims (2)

1. An extended type anti-misoperation key charging controller, including a charging box loaded with five anti-computer keys, the five anti-computer keys are connected in the charging circuit of the battery EC, and also have, Battery charging judgment circuit: the inverting input terminal of operational amplifier IC1 is connected in series with resistor R2 and then connected to the positive pole of battery EC, the positive phase input terminal of operational amplifier IC1 is connected in series with resistor R1 and then connected to the positive pole of battery EC, and the operational amplifier IC1 The positive phase input terminal is connected to the negative pole of the voltage regulator diode WY1, the positive pole of the voltage regulator diode WY1 is connected to the negative pole of the battery EC, the inverting input terminal of the operational amplifier IC1 is connected in series with the resistor R3 and then connected to the negative pole of the battery EC, and the operational amplifier IC1 The output terminal is connected to the base of the composite triode BG1-2, the emitter of the composite transistor BG1-2 is connected in series with the resistor R4 and then connected to the negative pole of the battery EC, and the collector of the composite transistor BG1-2 is connected in series with the relay J1 and the light-emitting diode Fg1 is then connected to the positive pole of the battery EC, the 4 pins of the input socket CZ1 are connected to the negative pole of the battery EC, the 2 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg3 and then connected to the positive pole of the battery EC, and the 1 pin of the input socket CZ1 is connected in series with the relay J1 The normally open node J1-1 and the light-emitting diode Fg2 are connected to the positive pole of the battery EC; AC-DC power supply and pulsating circuit: 220V AC is connected to the primary coil of transformer B, and the secondary coil of transformer B is connected to the input terminal of rectifier D1-4, and the positive output terminal of rectifier D1-4 is sequentially connected in series with voltage stabilizing integrated block WY2 and potentiometer W1 , thyristor KG and LED FG6 are connected to pin 1 of output socket CZ2, capacitor C1 is connected between the positive and negative output ends of rectifier D1-4, and pin 14 of six-inverter chip IC2 is connected to the voltage regulator integrated block The junction of WY2 and potentiometer W1, pin 7 of six-inverter chip IC2 is connected to pin 4 of output socket CZ2 and the negative output terminal of rectifier D1-4 at the same time, pin 8 of six-inverter chip IC2 is connected in series with bidirectional diode D5 Connected to the control pin of the thyristor KG, the 14-pin of the six-inverter chip IC2 is connected in series with resistor R6 and resistor R7, and then connected to the 7-pin of the six-inverter chip IC2, and the 2-pin of the output socket CZ2 is serially connected to emit light The normally open node J2-1 of the diode Fg7 and the relay J2 is connected to the output terminal of the thyristor KG; Pins 1, 2, 3, and 4 of the above-mentioned input socket CZ1 are respectively connected to pins 1, 2, 3, and 4 of the output socket CZ2; Clock control circuit: 9 pins of clock chip IC3 are connected in series with switch K3 and switch K7 in sequence and then connected to 8 pins of IC3, and 10 pins of clock chip IC3 are connected in series with switch K4 and switch K8 in sequence and then connected to 8 pins of IC3. Pin 11 of clock chip IC3 is connected in series with switch K5 and switch K9 and then connected to pin 8 of IC3, pin 12 of clock chip IC3 is connected in series with switch K6 in sequence and then connected to pin 7 of IC3, pin 3 of IC3 is connected to the compound The base of the triode BG3-4, the emitter of the compound triode BG3-4 are connected to the E- pole of the working power supply, the collector of the compound triode BG3-4 is connected in series with the relay J2 and then connected to the working power E+ pole, and the 14 pin of IC3 is connected to the The E-pole of the working power supply, the 13th pin of IC3 is connected to the junction of resistor R6 and resistor R7; The 3 pins of the input socket CZ1 are connected in series with the light-emitting diode Fg4 and then connected to the positive pole of the battery EC; the 4 pins of the clock chip IC3 are connected to the base of the compound triode BG5-6, and the emitter of the compound triode BG5-6 is connected to the working power E - pole, the collector of the compound triode BG5-6 is connected in series with the relay J3 and then connected to the working power E+ pole; the 3 pins of the output socket CZ2 are sequentially connected in series with the light-emitting diode FG8 and the normally open node J3-1 of the relay J3 At the output end of the thyristor KG; It is characterized in that the structure of the charging box is: a rectangular parallelepiped surrounded by the left vertical plate, the rear vertical plate, the right vertical plate, the front vertical plate and the bottom plate, the left vertical plate, the rear vertical plate and the The height of the right vertical board is the same, the height of the front vertical board is lower than that of the left vertical board, the middle partition is fixed on the top of the front main board, and the left vertical board, the rear vertical board and the right vertical board are above the middle partition. The space enclosed by the side vertical board can accommodate the five-proof computer key. After the five-proof computer key is placed in the space, the top of the five-proof computer key protrudes upwards from the space by 10cm; Prevent the charging end of the computer key from touching the connected two spring seats; a red marking line is added on the computer key to ensure the alignment of the charging port. 2. The extended type anti-misoperation key charging controller according to claim 1, wherein the clock control circuit also has a display screen, which is arranged on the front vertical plate of the charging box, and the clock The switches K3-K9 of the control circuit are all arranged on the front vertical plate of the charging box.