A new type of split fast opening and closing low voltage circuit breaker

Abstract

The present invention provides a novel split fast opening and closing low-voltage circuit breaker, comprising a base, wherein the left and right sides of the base are provided with a plurality of base outlet terminals, the base outlet terminals are provided with a middle cover, the middle cover is provided with wiring screws, and the left and right ends of the front face of the base are provided with mounting holes; the left end of the upper surface of the base is provided with a fixing screw and an exhaust groove, and the exhaust groove and the fixing screw are arranged front and back, a fixing plate is provided on the front face of the base, and the upper and lower ends of the middle part of the front face of the fixing plate are provided with accessory grooves, a handle frame is provided on the middle part of the front face of the fixing plate, and the handle frame is arranged between the upper and lower accessory grooves, and a handle is arranged in the handle frame; a placement groove is provided on the right end of the front face of the fixing plate, a socket is arranged in the placement groove, and a trip button is arranged at the lower end of the front face of the fixing plate; the present invention can realize the opening of the circuit breaker by issuing a communication command to the circuit breaker.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, in particular to a novel split fast opening and closing low-voltage circuit breaker. Background Art

[0002] Traditional low-voltage circuit breakers and electric operating devices are usually installed mechanically, without integrating the functions of the circuit breaker and the electric operating mechanism. When the motor fails, the overall equipment replacement time is long, and the traditional circuit breaker electric operating device has a complex structure and requires a large space for equipment installation. It cannot be effectively assembled with the circuit breaker and has poor adaptability. The opening and closing speed is slow. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a novel split fast opening and closing low-voltage circuit breaker capable of opening the circuit breaker by issuing a communication command to the circuit breaker.

[0004] The present invention is implemented by the following method: a novel split fast opening and closing low-voltage circuit breaker includes a base, a plurality of base outlet terminals are provided on the left and right sides of the base, a middle cover is provided on the base outlet terminals, wiring screws are provided in the middle cover, and mounting holes are provided at both left and right ends of the front face of the base; a fixing screw and an exhaust groove are provided at the left end of the upper surface of the base, and the exhaust groove and the fixing screw are arranged front and back, a fixing plate is provided at the front face of the base, accessory grooves are provided at both upper and lower ends of the middle part of the front face of the fixing plate, a handle frame is provided at the middle part of the front face of the fixing plate, and the handle frame is arranged between the upper and lower accessory grooves, and a handle is arranged in the handle frame; a placement groove is provided at the right end of the front face of the fixing plate, a socket is provided in the placement groove, and a release button is provided at the lower end of the front face of the fixing plate.

[0005] Furthermore, the low-voltage circuit breaker collects data through an internal mutual inductor, and the mutual inductor converts a large current on the primary side into a small current on the secondary side through the principle of electromagnetic induction. The circuit for converting a large current on the primary side into a small current on the secondary side includes a U1 chip and a U2 chip, wherein pin 1 of the U1 chip is connected to one end of a capacitor C12, and the other end of the capacitor C12 is connected to pin 6 of the U1 chip, and pin 2 of the U1 chip is grounded, and pin 3 of the U1 chip is connected to one end of a capacitor C13, and the other end of the capacitor C13 is connected to one end of a live wire L2 and one end of a resistor R6, and the other end of the live wire L2 is connected to pin 6 of the U1 chip, and the other end of the resistor R6 is connected to one end of a resistor R18, and the other end of the resistor R18 is grounded, and one end of the resistor R6 is connected in series with capacitor C17 and then connected to VCC. The 13.5V port is connected, the other end of the capacitor C17 is grounded, one end of the capacitor C17 is connected in series with one end of the capacitor C14 and then connected to the positive electrode of the diode D5, the other end of the capacitor C14 is grounded, the negative electrode of the diode D5 is connected to the 12V port, the No. 4 pin of the U1 chip is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the No. 5 pin of the U1 chip, and the No. 5 pin of the U1 chip is connected to the 24V port; the No. 1 pin of the U2 chip is connected to the capacitor C1 is connected at one end, the other end of the capacitor C1 is connected to pin 6 of the U2 chip, pin 2 of the U2 chip is grounded, pin 3 of the U2 chip is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to one end of the live wire L1 and one end of the resistor R3, the other end of the live wire L1 is connected to pin 6 of the U2 chip, the other end of the resistor R3 is connected to one end of the resistor R4, the other end of the resistor R4 is grounded, one end of the resistor R3 is connected in series with the capacitor C5 and then connected to the VCC 3.3V port, the other end of the capacitor C5 is grounded, one end of the capacitor C5 is connected to the VCC-3.2V port, pin 4 of the U2 chip is connected to one end of the resistor R2, the other end of the resistor R2 is connected to pin 5 of the U2 chip, and pin 5 of the U2 chip is connected to the 12V port.

[0006] Furthermore, after the low-voltage circuit breaker obtains the data, the data is centrally sent to the processing module of the low-voltage circuit breaker through the communication interface. The circuit of the communication interface includes a U3 chip and a U4 chip. Pin 1 of the U3 chip is connected to the RS485 RX2 port, and pins 2 and 3 of the U3 chip are connected in series to the collector of the transistor Q1. Pin 4 of the U3 chip is grounded, and pin 5 of the U3 chip is connected to one end of the capacitor C6 and one end of the resistor R14. One end of the resistor R14 is grounded, and the other end of the capacitor C6 is connected in series with pin 8 of the U3 chip and then connected to the 5V port. Pin 6 of the U3 chip is connected in series with one end of the resistor R10 and then connected to one end of the resistor R7. The other end of the resistor R10 is connected to the 5V port, and the other end of the resistor R7 is connected to pin 2 of the P9 socket. Pin 7 of the U3 chip is connected in series with the other end of the resistor R14 and then connected to one end of the resistor R11. The other end of resistor R11 is connected to pin 1 of the P9 socket; the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is connected to one end of the resistor R13, the other end of the resistor R13 is connected to pin 6 of the U4 chip, pin 1 of the U4 chip is connected in series with one end of the capacitor C7 and then connected to the VCC-3.3V port, the other end of the capacitor C7 is grounded, pin 2 of the U4 chip is connected to the 485RX port, pin 3 of the U4 chip is connected to the 485TX port, pin 4 of the U4 chip is grounded, pin 5 of the U4 chip is grounded, pin 7 of the U4 chip is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the RS485 RX2 port, pin 8 of the U4 chip is connected in series with one end of the capacitor C8 and then connected to the 5V port, and the other end of the capacitor C8 is grounded.

[0007] The beneficial effects of the present invention are as follows: the circuit breaker of the present invention is integrated with the opening and closing mechanism in an integrated design, the product control operation is simple, the action response is fast, the product function expansion is diversified, the product cost performance is greatly improved, and the integrated design also reduces the space occupied by the complete set of cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the present invention.

[0009] Figure 2 This is the circuit schematic for converting large current on the primary side into small current on the secondary side.

[0010] Figure 3 The schematic diagram of the circuit for the communication interface. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] See also Figure 1 As shown, the present invention provides an embodiment: a new type of split fast opening and closing low-voltage circuit breaker, including a base 1, a plurality of base outlet terminals 2 are provided on the left and right sides of the base 1, a middle cover 3 is provided on the base outlet terminal 2, a wiring screw 4 is provided in the middle cover 3, and mounting holes 5 are provided at both left and right ends of the front of the base 1; a fixing screw 6 and an exhaust groove 7 are provided at the left end of the upper surface of the base 1, and the exhaust groove 7 and the fixing screw 6 are arranged front and back, a fixing plate 8 is provided on the front of the base 1, and accessory grooves 9 are provided at both upper and lower ends of the middle part of the front of the fixing plate 8, a handle frame 10 is provided in the middle part of the front of the fixing plate 8, and the handle frame 10 is arranged between the upper and lower accessory grooves 9, and a handle 11 is provided in the handle frame 10; a placement groove 12 is provided at the right end of the front of the fixing plate 8, a socket 13 is provided in the placement groove 12, and a release button 14 is provided at the lower end of the front of the fixing plate 8. The circuit breaker and the rapid opening and closing mechanism are integrated into one design, and the two are deeply integrated. The opening and closing mechanism directly acts on the operating handle of the circuit breaker body.

[0013] See also Figure 2As shown, in one embodiment of the present invention, the low-voltage circuit breaker collects data through an internal mutual inductor, and the mutual inductor converts a large current on the primary side into a small current on the secondary side through the principle of electromagnetic induction. The circuit for converting a large current on the primary side into a small current on the secondary side includes a U1 chip and a U2 chip, wherein pin 1 of the U1 chip is connected to one end of a capacitor C12, and the other end of the capacitor C12 is connected to pin 6 of the U1 chip, and pin 2 of the U1 chip is grounded, and pin 3 of the U1 chip is connected to one end of a capacitor C13, and the other end of the capacitor C13 is connected to one end of a live wire L2 and one end of a resistor R6, and the other end of the live wire L2 is connected to pin 6 of the U1 chip, and the other end of the resistor R6 is connected to one end of a resistor R18, and the other end of the resistor R18 is grounded, and one end of the resistor R6 is connected in series with a capacitor C17 and then connected to a VCC13.5V port, and the other end of the capacitor C17 is grounded. One end of capacitor C17 is connected in series with one end of capacitor C14 and then connected to the positive electrode of diode D5, the other end of capacitor C14 is grounded, the negative electrode of diode D5 is connected to 12V port, pin 4 of U1 chip is connected to one end of resistor R5, the other end of resistor R5 is connected to pin 5 of U1 chip, and pin 5 of U1 chip is connected to 24V port; pin 1 of U2 chip is connected to one end of capacitor C1, the other end of capacitor C1 is connected to pin 6 of U2 chip, pin 2 of U2 chip is grounded, pin 3 of U2 chip is connected to one end of capacitor C2, the other end of capacitor C2 is connected to one end of live wire L1 and one end of resistor R3, the other end of live wire L1 is connected to pin 6 of U2 chip, the other end of resistor R3 is connected to one end of resistor R4, the other end of resistor R4 is grounded, one end of resistor R3 is connected in series with capacitor C5 and then connected to VCC 3.3V port, the other end of the capacitor C5 is grounded, one end of the capacitor C5 is connected to the VCC-3.2V port, the No. 4 pin of the U2 chip is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the No. 5 pin of the U2 chip, and the No. 5 pin of the U2 chip is connected to the 12V port. The thermal magnetic type and the protection transformer provide overload, short circuit short delay, and short circuit instantaneous protection functions, all of which need to provide data through the protection transformer, and then analyzed and processed by the chip.

[0014] See also Figure 3As shown, in one embodiment of the present invention, after the low-voltage circuit breaker obtains data, the data is centrally sent to the processing module of the low-voltage circuit breaker through the communication interface. The circuit of the communication interface includes a U3 chip and a U4 chip. Pin 1 of the U3 chip is connected to the RS485 RX2 port, and pins 2 and 3 of the U3 chip are connected in series with the collector of the transistor Q1. Pin 4 of the U3 chip is grounded, and pin 5 of the U3 chip is connected to one end of the capacitor C6 and one end of the resistor R14. One end of the resistor R14 is grounded, and the other end of the capacitor C6 is connected in series with pin 8 of the U3 chip and connected to the 5V port. Pin 6 of the U3 chip is connected in series with one end of the resistor R10 and connected to one end of the resistor R7. The other end of the resistor R10 is connected to the 5V port, and the other end of the resistor R7 is connected to pin 2 of the P9 socket. Pin 7 of the U3 chip is connected in series with the other end of the resistor R14 and connected to one end of the resistor R11. The other end of resistor R11 is connected to pin 1 of the P9 socket; the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is connected to one end of the resistor R13, the other end of the resistor R13 is connected to pin 6 of the U4 chip, pin 1 of the U4 chip is connected in series with one end of the capacitor C7 and then connected to the VCC-3.3V port, the other end of the capacitor C7 is grounded, pin 2 of the U4 chip is connected to the 485RX port, pin 3 of the U4 chip is connected to the 485TX port, pin 4 of the U4 chip is grounded, pin 5 of the U4 chip is grounded, pin 7 of the U4 chip is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the RS485 RX2 port, pin 8 of the U4 chip is connected in series with one end of the capacitor C8 and then connected to the 5V port, and the other end of the capacitor C8 is grounded. The data collected by the protection transformer is transmitted to the control line center-chip, making it more convenient to connect the data and analyze the collected data. The P9 socket can be MHDR1X4, but is not limited to this.

[0015] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A new type of split fast opening and closing low voltage circuit breaker, characterized by: The base comprises a base, wherein a plurality of base outlet terminals are provided on the left and right sides of the base, a middle cover is provided on the base outlet terminals, a wiring screw is provided in the middle cover, and mounting holes are provided at both left and right ends of the front face of the base; a fixing screw and an exhaust groove are provided at the left end of the upper surface of the base, and the exhaust groove and the fixing screw are arranged front and back, a fixing plate is provided at the front face of the base, and accessory grooves are provided at both upper and lower ends of the middle part of the front face of the fixing plate, a handle frame is provided at the middle part of the front face of the fixing plate, and the handle frame is arranged between the accessory grooves at the upper and lower ends, and a handle is arranged in the handle frame; a placement groove is provided at the right end of the front face of the fixing plate, a socket is arranged in the placement groove, and a release button is provided at the lower end of the front face of the fixing plate; The low-voltage circuit breaker collects data through an internal mutual inductor, and the mutual inductor converts a large current on the primary side into a small current on the secondary side through the principle of electromagnetic induction. The circuit for converting a large current on the primary side into a small current on the secondary side includes a U1 chip and a U2 chip. Pin 1 of the U1 chip is connected to one end of a capacitor C12, and the other end of the capacitor C12 is connected to pin 6 of the U1 chip. Pin 2 of the U1 chip is grounded. Pin 3 of the U1 chip is connected to one end of a capacitor C13, and the other end of the capacitor C13 is connected to one end of a live wire L2 and one end of a resistor R6. The other end of the live wire L2 is connected to pin 6 of the U1 chip, and the other end of the resistor R6 is connected to one end of a resistor R18, and the other end of the resistor R18 is grounded. One end of the resistor R6 is connected in series with capacitor C17 and then connected to VCC. The 13.5V port is connected, the other end of the capacitor C17 is grounded, one end of the capacitor C17 is connected in series with one end of the capacitor C14 and then connected to the positive electrode of the diode D5, the other end of the capacitor C14 is grounded, the negative electrode of the diode D5 is connected to the 12V port, the No. 4 pin of the U1 chip is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the No. 5 pin of the U1 chip, and the No. 5 pin of the U1 chip is connected to the 24V port; the No. 1 pin of the U2 chip is connected to the capacitor C1 is connected at one end, the other end of the capacitor C1 is connected to pin 6 of the U2 chip, pin 2 of the U2 chip is grounded, pin 3 of the U2 chip is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to one end of the live wire L1 and one end of the resistor R3, the other end of the live wire L1 is connected to pin 6 of the U2 chip, the other end of the resistor R3 is connected to one end of the resistor R4, the other end of the resistor R4 is grounded, one end of the resistor R3 is connected in series with the capacitor C5 and then connected to the VCC 3.3V port, the other end of the capacitor C5 is grounded, one end of the capacitor C5 is connected to the VCC-3.2V port, pin 4 of the U2 chip is connected to one end of the resistor R2, the other end of the resistor R2 is connected to pin 5 of the U2 chip, and pin 5 of the U2 chip is connected to the 12V port; After acquiring the data, the low-voltage circuit breaker sends the data to the processing module of the low-voltage circuit breaker through the communication interface. The circuit of the communication interface includes a U3 chip and a U4 chip. Pin 1 of the U3 chip is connected to the RS485 RX2 port. Pin 2 of the U3 chip is connected to the collector of the transistor Q1 in series with pin 3. Pin 4 of the U3 chip is grounded. Pin 5 of the U3 chip is connected to one end of the capacitor C6 and one end of the resistor R14. One end of the resistor R14 is grounded. The other end of the capacitor C6 is connected to the 5V port in series with pin 8 of the U3 chip. Pin 6 of the U3 chip is connected to one end of the resistor R10 in series with one end of the resistor R7. The other end of the resistor R10 is connected to the 5V port. The other end of the resistor R7 is connected to P9. The emitter of the transistor Q1 is grounded, the base of the transistor Q1 is connected to one end of the resistor R13, the other end of the resistor R13 is connected to the pin 6 of the U4 chip, the pin 1 of the U4 chip is connected to one end of the capacitor C7 in series and then connected to the VCC-3.3V port, the other end of the capacitor C7 is grounded, and the pin 2 of the U4 chip is connected to the 485 The U4 chip is connected to the RS485 RX port, the U4 chip pin 3 is connected to the 485 TX port, the U4 chip pin 4 is grounded, the U4 chip pin 5 is grounded, the U4 chip pin 7 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the RS485 RX2 port, the U4 chip pin 8 is connected in series with one end of the capacitor C8 and then connected to the 5V port, and the other end of the capacitor C8 is grounded.

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