Side door motor coding plate for subway turnstile

Abstract

The utility model discloses a side door motor coding plate for a subway turnstile, and belongs to the technical field of motor coding plates. Comprising a voltage amplification circuit, the voltage input end of the voltage amplification circuit is connected with an external power supply, the voltage output end of the voltage amplification circuit is connected with the voltage input end of a signal amplification circuit, and the voltage amplification circuit supplies power to the signal amplification circuit after converting the voltage of the external power supply. The voltage output end of the signal amplification circuit is connected with the voltage input end of the motor control board, the input end of the signal amplification circuit is connected with the output end of the interface P1, the input end of the interface P1 is connected with the output end of the rotary coding sensor, the output end of the signal amplification circuit is connected with the input end of the interface P2, and the output end of the interface P2 is connected with the input end of the motor control mainboard. According to the utility model, the output power of the chip U1 in the voltage amplification circuit is improved, the dissipation power is lower than that of a power supply voltage-stabilizing chip, and the overall heating value of the coding plate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor encoder boards, and particularly relates to a side door motor encoder board for subway turnstiles. Background Art

[0002] The whole set of components of the side door mechanism of some subway trains adopts the side door mechanism produced by KABA Company of Germany. Its mechanical device includes a brushed DC motor, a rotary encoder, an encoder board, a power supply board, a motor control main board, etc. The side door mechanism is one of the main components in the side door operation action system.

[0003] The main function of the original KABA encoder board is to convert the rotation angle and position signals of the rotary encoder into level signals, and then feedback them to the motor control main board. The motor control main board can control the rotation of the brushed DC motor only after recognizing the correct angle and position data. The encoder board is the only component for communication between the brushed DC motor and the motor control main board.

[0004] However, in actual use of the encoder board, the temperature of the voltage regulator power chip is too high. Prolonged continuous heat dissipation will cause the overall temperature of the encoder board to be particularly high, which will further cause damage to the signal processing chip. This is the main reason for the damage of the encoder boards in the first and second phases of Line 1. And the cost of repairing or directly replacing the original KABA encoder board is too high. Therefore, we need to design an encoder board with matching input and output power to completely solve this situation. Content of the Utility Model

[0005] Purpose of the Utility Model: To provide a side door motor encoder board for subway turnstiles, which solves the above problems existing in the prior art.

[0006] Technical Solution: A side door motor encoder board for subway turnstiles includes a voltage amplification circuit. The voltage input end of the voltage amplification circuit is connected to an external power supply, and the voltage output end of the voltage amplification circuit is connected to the voltage input end of a signal amplification circuit. After converting the voltage of the external power supply, the voltage amplification circuit supplies power to the signal amplification circuit. The voltage output end of the signal amplification circuit is connected to the voltage input end of a motor control board. The input end of the signal amplification circuit is connected to the output end of interface P1, the input end of interface P1 is connected to the output end of a rotary encoding sensor, the output end of the signal amplification circuit is connected to the input end of interface P2, and the output end of interface P2 is connected to the input end of a motor control main board.

[0007] Preferably, the voltage amplification circuit includes a chip U1, a voltage stabilizing diode D1, a voltage stabilizing diode D2, a light-emitting diode LED1, an inductor L1, a capacitor C4, a capacitor C6, a capacitor C7, and a resistor R10. One end of the inductor L1 is simultaneously connected to the voltage output end of the voltage amplifier, pin 4 of the chip U1, the positive electrode of the capacitor C4, one end of the resistor R10, and the capacitor C6. The other end of the resistor R10 is connected to the positive electrode of the light-emitting diode LED1. The other end of the inductor L1 is connected to pin 2 of the chip U1 and the negative electrode of the voltage stabilizing diode D2. The positive electrode of the voltage stabilizing diode D2 is simultaneously connected to the negative electrode of the capacitor C4, the negative electrode of the light-emitting diode LED1, the negative electrode of the capacitor C7, and the capacitor C6 and is grounded. The positive electrode of the capacitor C7 is simultaneously connected to the negative electrode of the voltage stabilizing diode D1 and pin 1 of the chip U1.

[0008] Preferably, the signal amplification circuit includes a chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6. One ends of the resistor R4, the resistor R5, and the resistor R6 are simultaneously connected to an external power supply. The other end of the resistor R4 is connected to pin 15 of the chip U2. The other end of the resistor R5 is connected to pin 13 of the chip U2. The other end of the resistor R6 is connected to pin 11 of the chip U2. One ends of the resistor R1, the resistor R2, and the resistor R3 are simultaneously connected to the voltage input end of the signal amplification circuit. The other end of the resistor R1 is connected to pin 6 of the chip U2. The other end of the resistor R2 is connected to pin 4 of the chip U2. The other end of the resistor R3 is connected to pin 2 of the chip U2.

[0009] Preferably, pin 2 of the interface P1 is connected to pin 1 of the chip U2, pin 3 of the interface P1 is connected to pin 3 of the chip U2, and pin 5 of the interface P1 is connected to pin 5 of the chip U2.

[0010] Preferably, pin 4 of the interface P2 is connected to pin 15 of the chip U2 through a resistor R7, pin 3 of the interface P2 is connected to pin 13 of the chip U2 through a resistor R8, and pin 2 of the interface P2 is connected to pin 11 of the chip U2 through a resistor R9.

[0011] Preferably, the chip U1 adopts an LM2596-5 type output buck integrated voltage regulator chip, the interface P1 adopts an HC-510-5A type interface, and the interface P2 adopts a DB2ERC-3.5-5P-GN type interface.

[0012] Preferably, the chip U2 adopts a ULN2003 composite transistor array.

[0013] Beneficial effects: The utility model relates to an encoder board for a side door motor of a subway turnstile. The voltage amplification circuit converts the input 24V DC voltage into 5V DC voltage to supply power to the signal amplification circuit. The chip U1 in the voltage amplification circuit adopts an LM2596-5 type output buck integrated voltage regulator chip. Compared with the original voltage regulator chip, it improves the output power of the chip, has a lower dissipation power than the power supply voltage regulator chip, reduces the overall heat generation of the encoder board, and extends the service life of the encoder board and reduces the maintenance frequency.

[0014] Secondly, the chip U2 in the signal amplification circuit adopts a ULN2003 composite transistor array, which amplifies the input TTL square wave signal with an amplitude of 5V into a square wave signal with an amplitude of 24V, thereby enhancing the signal anti-interference ability. Brief description of the drawings

[0015] Figure 1 is the circuit diagram of the voltage amplification circuit of the utility model;

[0016] Figure 2 is the circuit diagram of the signal amplification circuit of the utility model;

[0017] Figure 3 is the circuit diagram of the interface P1 of the utility model;

[0018] Figure 4 is the circuit diagram of the interface P2 of the utility model. Specific implementation manner

[0019] As Figures 1 to 4 shown, the utility model provides a technical solution: an encoder board for a side door motor of a subway turnstile, including a voltage amplification circuit, a signal amplification circuit, interface P1 and interface P2. The voltage input end of the voltage amplification circuit is connected to an external power supply, the voltage output end of the voltage amplification circuit is connected to the voltage input end of the signal amplification circuit. After the voltage amplification circuit converts the voltage of the external power supply, it supplies power to the signal amplification circuit. The voltage output end of the signal amplification circuit is connected to the voltage input end of the motor control board. The voltage amplification circuit converts the input 24V DC voltage into 5V DC voltage to supply power to the signal amplification circuit. Compared with the original voltage regulator chip, it improves the output power of the chip, has a lower dissipation power than the power supply voltage regulator chip, reduces the overall heat generation of the encoder board, extends the service life of the encoder board, and reduces the maintenance frequency. The input end of the signal amplification circuit is connected to the output end of interface P1, the input end of interface P1 is connected to the output end of the rotary encoder sensor, the output end of the signal amplification circuit is connected to the input end of interface P2, and the output end of interface P2 is connected to the input end of the motor control main board.

[0020] In a further embodiment, the voltage amplification circuit includes a chip U1, a voltage stabilizing diode D1, a voltage stabilizing diode D2, a light-emitting diode LED1, an inductor L1, a capacitor C4, a capacitor C6, a capacitor C7, and a resistor R10. The chip U1 uses a ULN2003 composite transistor array. One end of the inductor L1 is simultaneously connected to the voltage output terminal of the voltage amplifier, pin 4 of the chip U1, the positive electrode of the capacitor C4, one end of the resistor R10, and the capacitor C6. The other end of the resistor R10 is connected to the positive electrode of the light-emitting diode LED1. The other end of the inductor L1 is connected to pin 2 of the chip U1 and the negative electrode of the voltage stabilizing diode D2. The positive electrode of the voltage stabilizing diode D2 is simultaneously connected to the negative electrode of the capacitor C4, the negative electrode of the light-emitting diode LED1, the negative electrode of the capacitor C7, and the capacitor C6 and grounded. The positive electrode of the capacitor C7 is simultaneously connected to the negative electrode of the voltage stabilizing diode D1 and pin 1 of the chip U1. The chip U1 in the voltage amplification circuit uses an LM2596-5 type output buck integrated voltage regulator chip. Compared with the original voltage regulator chip, it improves the output power of the chip, has a lower dissipation power than the power supply voltage regulator chip, and reduces the overall heat generation of the coding board.

[0021] In a further embodiment, the signal amplification circuit includes a chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6. One ends of the resistors R4, R5, and R6 are simultaneously connected to an external power supply. The other end of the resistor R4 is connected to pin 15 of the chip U2. The other end of the resistor R5 is connected to pin 13 of the chip U2. The other end of the resistor R6 is connected to pin 11 of the chip U2. One ends of the resistors R1, R2, and R3 are simultaneously connected to the voltage input terminal of the signal amplification circuit. The other end of the resistor R1 is connected to pin 6 of the chip U2. The other end of the resistor R2 is connected to pin 4 of the chip U2. The other end of the resistor R3 is connected to pin 2 of the chip U2. Pin 2 of the interface P1 is connected to pin 1 of the chip U2. Pin 3 of the interface P1 is connected to pin 3 of the chip U2. Pin 5 of the interface P1 is connected to pin 5 of the chip U2. Pin 4 of the interface P2 is connected to pin 15 of the chip U2 through a resistor R7. Pin 3 of the interface P2 is connected to pin 13 of the chip U2 through a resistor R8. Pin 2 of the interface P2 is connected to pin 11 of the chip U2 through a resistor R9.

[0022] In a further embodiment, the chip U2 uses an LM2596-5 type output buck integrated voltage regulator chip. The interface P1 uses an HC-510-5A type interface. The interface P2 uses a DB2ERC-3.5-5P-GN type interface. The chip U2 in the signal amplification circuit uses a ULN2003 composite transistor array, amplifying a TTL square wave signal with an input amplitude of 5V into a square wave signal with an amplitude of 24V, thereby enhancing the signal anti-interference ability.

[0023] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various equivalent transformations can be made to the technical solutions of the present utility model, and these equivalent transformations all fall within the protection scope of the present utility model.

Claims

1. A side door motor coding plate for a subway gate, characterized in that: It includes a voltage amplifier circuit, wherein the voltage input end of the voltage amplifier circuit is connected to an external power supply, the voltage output end of the voltage amplifier circuit is connected to the voltage input end of a signal amplifier circuit, the voltage amplifier circuit converts the voltage of the external power supply and then supplies power to the signal amplifier circuit, the voltage output end of the signal amplifier circuit is connected to the voltage input end of a motor control board, the input end of the signal amplifier circuit is connected to the output end of an interface P1, the input end of the interface P1 is connected to the output end of a rotary encoding sensor, the output end of the signal amplifier circuit is connected to the input end of an interface P2, the output end of the interface P2 is connected to the input end of a motor control board, the interface P1 adopts an HC-510-5A model interface, and the interface P2 adopts a DB2ERC-3.5-5P-GN model interface.

2. A side door motor coding plate for a subway gate according to claim 1, characterized in that: The voltage amplifier circuit includes a chip U1, a voltage regulator diode D1, a voltage regulator diode D2, a light-emitting diode LED1, an inductor L1, a capacitor C4, a capacitor C6, a capacitor C7 and a resistor R10. One end of the inductor L1 is simultaneously connected to the voltage output end of the voltage amplifier, pin 4 of the chip U1, the positive electrode of the capacitor C4, one end of the resistor R10 and the capacitor C6. The other end of the resistor R10 is connected to the positive electrode of the light-emitting diode LED1. The other end of the inductor L1 is connected to pin 2 of the chip U1 and the negative electrode of the voltage regulator diode D2. The positive electrode of the voltage regulator diode D2 is simultaneously connected to the negative electrode of the capacitor C4, the negative electrode of the light-emitting diode LED1, the negative electrode of the capacitor C7 and the capacitor C6 and is grounded. The positive electrode of the capacitor C7 is simultaneously connected to the negative electrode of the voltage regulator diode D1 and pin 1 of the chip U1.

3. The side door motor coding plate for subway gate according to claim 1 is characterized in that: The signal amplification circuit includes a chip U2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a resistor R6, one end of each resistor R4, a resistor R5 and a resistor R6 are connected to an external power supply at the same time, the other end of each resistor R4 is connected to pin 15 of the chip U2, the other end of each resistor R5 is connected to pin 13 of the chip U2, the other end of each resistor R6 is connected to pin 11 of the chip U2, one end of each resistor R1, a resistor R2 and a resistor R3 are connected to a voltage input end of the signal amplification circuit at the same time, the other end of each resistor R1 is connected to pin 6 of the chip U2, the other end of each resistor R2 is connected to pin 4 of the chip U2, and the other end of each resistor R3 is connected to pin 2 of the chip U2.

4. A side door motor coding plate for a subway gate according to claim 2, characterized in that: Pin 2 of the interface P1 is connected to pin 1 of the chip U2, pin 3 of the interface P1 is connected to pin 3 of the chip U2, and pin 5 of the interface P1 is connected to pin 5 of the chip U2.

5. The side door motor coding plate for subway gate according to claim 2, characterized in that: Pin 4 of the interface P2 is connected to pin 15 of the chip U2 via resistor R7, pin 3 of the interface P2 is connected to pin 13 of the chip U2 via resistor R8, and pin 2 of the interface P2 is connected to pin 11 of the chip U2 via resistor R9.

6. A side door motor coding plate for a subway gate according to claim 2, characterized in that: The chip U1 adopts an output step-down integrated voltage regulator chip of model LM2596-5.

7. The side door motor coding plate for subway gate according to claim 3, characterized in that: The chip U2 adopts ULN2003 compound transistor array.

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