Communication conversion device of circuit breaker and circuit breaker

Abstract

The utility model provides a communication conversion device of a circuit breaker and the circuit breaker. The communication conversion device comprises a power line carrier module, a micro-processing module and a first RS485 communication module. The power line carrier module obtains the first communication data packet from the upper computer and transmits the first communication data packet to the micro-processing module. The micro-processing module analyzes the first communication data packet, packages the first communication data packet according to a second communication protocol adopted by the circuit breaker, and transmits the second communication data packet to the first RS485 communication module. And the first RS485 communication module sends the second communication data packet to the circuit breaker, so that the circuit breaker executes the second communication data packet and transmits a feedback result of the second communication data packet to the upper computer, and the circuit breaker communicates with the upper computer. Therefore, the communication conversion device of the circuit breaker communicates with the upper computer through the first communication protocol and also communicates with the circuit breaker through the second communication protocol, so that the circuit breaker directly communicates with the upper computer without secondary development, and the time cost is saved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical protection equipment, and in particular to a communication conversion device for a circuit breaker and a circuit breaker. Background Art

[0002] Currently, circuit breakers must comply with specific communication protocols, such as DLT645. However, circuit breakers typically utilize other communication protocols, such as MODBUS. Establishing communication with the circuit breaker requires adapting and adjusting the circuit breaker's communication protocol. Consequently, secondary development is required, resulting in high time costs and even failure to function properly. Utility Model Content

[0003] The present application provides a communication conversion device for a circuit breaker and a circuit breaker, which eliminates the need for secondary development of the circuit breaker and saves time and cost.

[0004] In a first aspect, the present application provides a communication conversion device for a circuit breaker, the communication conversion device comprising: a power carrier module, a microprocessor module, and a first RS485 communication module;

[0005] The input end of the power carrier module is electrically connected to the host computer, the output end of the power carrier module is electrically connected to the input end of the microprocessor module, the first output end of the microprocessor module is electrically connected to the input end of the first RS485 communication module, and the output end of the first RS485 communication module is electrically connected to the circuit breaker;

[0006] The power carrier module is configured to obtain a first communication data packet from the host computer through a first communication protocol and transmit the first communication data packet to the microprocessor module;

[0007] The microprocessor module is configured to parse the first communication data packet, encapsulate the data packet according to a second communication protocol to obtain a second communication data packet, and transmit the second communication data packet to the first RS485 communication module, where the second communication protocol is the protocol adopted by the circuit breaker;

[0008] The first RS485 communication module is used to send the second communication data packet to the circuit breaker, so that the circuit breaker executes the second communication data packet, and transmits the feedback result of the second communication data packet to the host computer.

[0009] Through the communication conversion device of the circuit breaker provided in the first aspect, the power carrier module can obtain a first communication data packet from the host computer through the first communication protocol, and transmit the first communication data packet to the microprocessor module, so that the microprocessor module can obtain the first communication data packet. In this way, the microprocessor module can parse the first communication data packet and encapsulate it according to the second communication protocol adopted by the circuit breaker to obtain a second communication data packet, and transmit the second communication data packet to the first RS485 communication module, so that the first RS485 communication module can obtain the second communication data packet. Furthermore, the first RS485 communication module can send the second communication data packet to the circuit breaker, so that the circuit breaker can directly execute the second communication data packet, and transmit the feedback result of the second communication data packet to the host computer, so that the circuit breaker and the host computer can communicate. Thus, the communication conversion device of the circuit breaker can communicate with the host computer through the first communication protocol, and can also communicate with the circuit breaker through the second communication protocol, so that the circuit breaker can directly communicate with the host computer without secondary development, saving time and cost.

[0010] In one possible design, the communication conversion device further includes: a second RS485 communication module;

[0011] The input end of the second RS485 communication module is electrically connected to the second output end of the microprocessor module, and the input end of the second RS485 communication module is electrically connected to the gateway;

[0012] The second RS485 communication module is used to obtain a third communication data packet from the gateway and transmit the third communication data packet to the microprocessor module;

[0013] The microprocessor module is configured to parse the third communication data packet, encapsulate the data packet according to the third communication protocol, obtain a fourth communication data packet, transmit the fourth communication data packet to the first RS485 communication module, so that the circuit breaker executes the fourth communication data packet, and transmit a feedback result of the fourth communication data packet to the gateway, thereby realizing communication between the circuit breaker and the gateway.

[0014] In one possible design, the communication conversion device further includes: a storage module and / or a clock module;

[0015] The storage module is electrically connected to a first end of the microprocessor module, and the clock module is electrically connected to a second end of the microprocessor module;

[0016] The storage module is used to store the upgraded firmware and control parameters of the circuit breaker;

[0017] The clock module is used to provide a clock signal to the micro-processing module, so that the micro-processing module configures a timestamp in the second communication data packet or the fourth communication data packet according to the clock signal.

[0018] In one possible design, the communication conversion device further includes: a power supply module and a power conversion module;

[0019] The input end of the power supply module is used to receive an AC voltage, the output end of the power supply module is electrically connected to the input end of the power conversion module, and the output end of the power conversion module is used to output a supply voltage, and the supply voltage is used to power the communication conversion device;

[0020] The power supply module is used to convert the AC voltage into a DC voltage and transmit the DC voltage to the power conversion module;

[0021] The power conversion module is used to step down the DC voltage to obtain the supply voltage.

[0022] In one possible design, the power module includes: an AC component, a filter, a rectifier bridge, and a switching power supply;

[0023] The input end of the AC component is used to receive the AC voltage, the output end of the AC component is electrically connected to the input end of the filter, the output end of the filter is electrically connected to the input end of the rectifier bridge, the output end of the rectifier bridge is electrically connected to the input end of the switching power supply, and the output end of the switching power supply is electrically connected to the input end of the power conversion module;

[0024] The AC component is used to transmit the AC voltage to the filter;

[0025] The filter is used to filter the AC voltage to obtain a filtered AC voltage, and transmit the filtered AC voltage to the rectifier bridge;

[0026] The rectifier bridge is used to rectify the filtered AC voltage to obtain a first voltage, and transmit the first voltage to the switching power supply;

[0027] The switching power supply is used to convert the first voltage into the DC voltage.

[0028] In one possible design, the power conversion module includes: a step-down conversion component and a linear voltage regulation component;

[0029] The input end of the step-down conversion component is electrically connected to the output end of the power supply module, the output end of the step-down conversion component is electrically connected to the input end of the linear voltage regulator component, and the output end of the linear voltage regulator component is used to output the supply voltage;

[0030] The step-down conversion component is configured to step-down the DC voltage to obtain a second voltage, and transmit the second voltage to the linear voltage stabilization component;

[0031] The linear voltage stabilizing component is used to convert the second voltage into the constant supply voltage.

[0032] In one possible design, the power carrier module includes: a connection port, a first resistor, and a second resistor;

[0033] The first end of the first resistor and the first end of the second resistor are both used to access the power supply voltage, the second end of the first resistor is electrically connected to the fifth end of the wiring port, the second end of the second resistor is electrically connected to the sixth end of the wiring port, and the fifth end of the wiring port and the sixth end of the wiring port are also electrically connected to the input end of the microprocessor module.

[0034] In one possible design, the first RS485 communication module or the second RS485 communication module includes: a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a transceiver chip;

[0035] The first end of the third resistor, the first end of the fourth resistor, and the first pin of the transceiver chip are all used to access the power supply voltage. The second end of the third resistor is electrically connected to the third pin of the transceiver chip. The second end of the fourth resistor is electrically connected to the sixth pin of the transceiver chip. The sixteenth pin of the transceiver chip is electrically connected to the first end of the fifth resistor. The second end of the fifth resistor is electrically connected to the twelfth pin of the transceiver chip. The thirteenth pin of the transceiver chip is electrically connected to the first end of the sixth resistor. The third pin and the sixth pin of the transceiver chip are also electrically connected to the first output end of the microprocessor module or the second output end of the microprocessor module. The twelfth pin and the thirteenth pin of the transceiver chip are also electrically connected to the circuit breaker or the gateway. The second end of the sixth resistor is grounded.

[0036] In one possible design, the microprocessor module includes: a control chip;

[0037] The 29th pin and the 30th pin of the control chip are both electrically connected to the output end of the power carrier module, the 43rd pin or the 17th pin of the control chip is electrically connected to the third pin of the transceiver chip, and the 42nd pin or the 16th pin of the control chip is electrically connected to the 6th pin of the transceiver chip.

[0038] In a second aspect, the present application provides a circuit breaker, comprising: the communication conversion device in the above-mentioned first aspect and various possible designs of the above-mentioned first aspect.

[0039] The beneficial effects provided in the above-mentioned second aspect and the various possible designs of the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and the various possible implementation methods of the first aspect, and will not be repeated here.

[0040] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, they can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 A schematic structural diagram of a communication conversion device for a circuit breaker provided in one embodiment of the present application;

[0043] Figure 2 A schematic structural diagram of a storage module and a clock module in a communication conversion device provided in one embodiment of the present application;

[0044] Figure 3 A schematic structural diagram of a power supply module in a communication conversion device provided in one embodiment of the present application;

[0045] Figure 4 A schematic structural diagram of a power conversion module in a communication conversion device provided in one embodiment of the present application;

[0046] Figure 5 A schematic structural diagram of a power carrier module in a communication conversion device provided in one embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of an RS485 communication module in a communication conversion device provided in one embodiment of the present application;

[0048] Figure 7 A schematic structural diagram of a microprocessor module in a communication conversion device provided in one embodiment of the present application.

[0049] Description of reference numerals:

[0050] 100. Communication conversion device; 110. Power carrier module; 120. Microprocessor module; 130. First RS485 communication module; 130. First RS485 communication module; 140. Second RS485 communication module; 150. Storage module; 160. Clock module; 170. Power module; 180. Power conversion module; 200. Host computer; 300. Circuit breaker; 400. Gateway. DETAILED DESCRIPTION

[0051] In this application, "at least one" refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a alone, b alone, or c alone can represent: a alone, b alone, c alone, a and b in combination, a and c in combination, b and c in combination, or a, b, and c in combination, where a, b, and c can be single or multiple. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0052] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "up", "down", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present application.

[0053] The terms "connected" and "connect" should be interpreted broadly. For example, "connected" or "connected" in a circuit structure can refer not only to a physical connection, but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is interconnected. It can also refer to internal connectivity between two components. Signal connection can refer not only to signal connection through circuits but also to signal connection through media, such as radio waves. Those skilled in the art will understand the specific meanings of the above terms in this application on a case-by-case basis.

[0054] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a communication conversion device for a circuit breaker provided in one embodiment of the present application. Figure 1 As shown, the communication conversion device 100 may include: a power carrier module 110 , a microprocessor module 120 and a first RS485 communication module 130 .

[0055] The input end of the power carrier module 110 is electrically connected to the host computer 200, the output end of the power carrier module 110 is electrically connected to the input end of the microprocessor module 120, the first output end of the microprocessor module 120 is electrically connected to the input end of the first RS485 communication module 130, and the output end of the first RS485 communication module 130 is electrically connected to the circuit breaker 300.

[0056] The power carrier module 110 , the microprocessor module 120 and the first RS485 communication module 130 may be provided separately or integrated, and this embodiment of the present application does not specifically limit this.

[0057] The power carrier module 110 can obtain the first communication data packet from the host computer 200 through the first communication protocol. In addition, the power carrier module 110 can transmit the first communication data packet to the microprocessor module 120 so that the microprocessor module 120 can obtain the first communication data packet.

[0058] The first communication protocol is, for example, the DLT645 protocol.

[0059] Among them, the first communication data packet can be used to obtain the power consumption of the load of the circuit breaker 300, the first communication data packet can also be used to obtain the operation log of the circuit breaker 300, and the first communication data packet can also be used to obtain the fault record of the circuit breaker 300. The embodiment of the present application does not specifically limit this.

[0060] Microprocessor module 120 can parse the first communication data packet and encapsulate it according to the second communication protocol to obtain a second communication data packet. In this way, microprocessor module 120 can transmit the second communication data packet to first RS485 communication module 130, allowing first RS485 communication module 130 to obtain the second communication data packet. In other words, microprocessor module 120 converts the first communication data packet based on the first communication protocol into the second communication data packet based on the second communication protocol. In other words, microprocessor module 120 serves as an intermediate channel for communication between host computer 200 and circuit breaker 300.

[0061] The second communication protocol is a protocol used by the circuit breaker 300 , and the second communication protocol is, for example, a MODBUS protocol.

[0062] Furthermore, the first RS485 communication module 130 can send the second communication data packet to the circuit breaker 300, allowing the circuit breaker 300 to directly execute the second communication data packet without secondary development, saving time and cost. In addition, the circuit breaker 300 can transmit the feedback result of the second communication data packet to the host computer 200, allowing the circuit breaker 300 to communicate with the host computer 200 and achieve transparent data transmission. Thus, the communication conversion device 100 of the circuit breaker can communicate with the host computer 200 via the first communication protocol, and can also communicate with the circuit breaker 300 via the second communication protocol, allowing the circuit breaker 300 to directly communicate with the host computer 200 without secondary development, saving time and cost.

[0063] The communication conversion device of the circuit breaker provided in the present application, the power carrier module can obtain the first communication data packet from the host computer through the first communication protocol, and transmit the first communication data packet to the microprocessor module, so that the microprocessor module can obtain the first communication data packet. In this way, the microprocessor module can parse the first communication data packet, and encapsulate it according to the second communication protocol adopted by the circuit breaker, obtain the second communication data packet, and transmit the second communication data packet to the first RS485 communication module, so that the first RS485 communication module can obtain the second communication data packet. Then, the first RS485 communication module can send the second communication data packet to the circuit breaker, so that the circuit breaker can directly execute the second communication data packet, and transmit the feedback result of the second communication data packet to the host computer, so that the circuit breaker and the host computer realize communication. Thus, the communication conversion device of the circuit breaker can communicate with the host computer through the first communication protocol, and can also communicate with the circuit breaker through the second communication protocol, so that the circuit breaker can directly communicate with the host computer without secondary development, saving time cost.

[0064] Based on the description of the above embodiment, a possible implementation of the communication conversion device 100 is exemplified. Figure 1 As shown, the communication conversion device 100 may further include: a second RS485 communication module 140 .

[0065] An input end of the second RS485 communication module 140 is electrically connected to the second output end of the microprocessor module 120 , and an input end of the second RS485 communication module 140 is electrically connected to the gateway 400 .

[0066] The second RS485 communication module 140 may obtain the third communication data packet from the gateway 400. Furthermore, the second RS485 communication module 140 may transmit the third communication data packet to the microprocessor module 120, so that the microprocessor module 120 may obtain the third communication data packet.

[0067] In this way, the micro-processing module 120 can parse the third communication data packet and encapsulate it according to the third communication protocol to obtain a fourth communication data packet. The micro-processing module 120 then transmits the fourth communication data packet to the first RS485 communication module 130, allowing the first RS485 communication module 130 to transmit the fourth communication data packet to the circuit breaker 300. In other words, the micro-processing module 120 converts the third communication data packet based on the communication protocol of the second RS485 communication module 140 into a fourth communication data packet based on the third communication protocol. In other words, the micro-processing module 120 serves as an intermediate tunnel for communication between the gateway 400 and the circuit breaker 300.

[0068] Furthermore, the circuit breaker 300 can directly execute the fourth communication data packet and transmit the feedback result of the fourth communication data packet to the gateway 100. Thus, the communication between the circuit breaker 300 and the gateway 400 is realized.

[0069] The third communication protocol is, for example, a DLT645 private protocol set by the target user based on the DLT645 protocol.

[0070] Based on the description of the above embodiment, another possible implementation of the communication conversion device 100 is exemplified. Figure 1 As shown, the communication conversion device 100 may further include: a storage module 150 and / or a clock module 160 .

[0071] The storage module 150 is electrically connected to a first terminal of the micro-processing module 120 , and the clock module 160 is electrically connected to a second terminal of the micro-processing module 120 .

[0072] The communication conversion device 100 may further include a storage module 150 . Alternatively, the communication conversion device 100 may further include a clock module 160 . Alternatively, the communication conversion device 100 may further include a storage module 150 and a clock module 160 .

[0073] The storage module 150 may store upgraded firmware and control parameters of the circuit breaker 300 .

[0074] The firmware upgrade refers to a program package for updating and optimizing the circuit breaker software. The control parameters may include, but are not limited to, current, voltage, and power.

[0075] The clock module 160 can provide a clock signal to the micro-processing module 120 , so that the micro-processing module 120 can configure a timestamp in the second communication data packet or the fourth communication data packet according to the clock signal.

[0076] In some examples, reference Figure 2 , Figure 2 This is a structural diagram of a storage module and a clock module in a communication conversion device provided in one embodiment of the present application. Figure 2As shown, the storage module 150 may include: a storage chip U11 and a capacitor C12.

[0077] The eighth pin of the memory chip U11 and the upper plate of the capacitor C12 are both used to access the power supply voltage VCC1, the lower plate of the capacitor C12 is grounded, and the first pin, second pin, fifth pin and sixth pin of the memory chip U11 are all electrically connected to the first end of the microprocessor module 120.

[0078] In some examples, such as Figure 2 As shown, the clock module 160 may include: a real-time clock chip U10, a crystal oscillator X1, a battery B1, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, a diode D4, a twenty-second resistor R22, and a twenty-third resistor R23.

[0079] The first pin of the real-time clock chip U10 is electrically connected to the upper plate of the capacitor C8 and the first end of the crystal oscillator X1, respectively. The second pin of the real-time clock chip U10 is electrically connected to the upper plate of the capacitor C9 and the second end of the crystal oscillator X1, respectively. The fifth pin of the real-time clock chip U10 and the sixth pin of the real-time clock chip U10 are both electrically connected to the second end of the microprocessor module 120. The fifth pin of the real-time clock chip U10 is also electrically connected to the first end of the twenty-third resistor R23, and the sixth pin of the real-time clock chip U10 is also electrically connected to the first end of the twenty-second resistor R22. The eighth pin of the clock chip U10 is electrically connected to the negative electrode of the diode D4. The positive electrode of the diode D4, the second end of the twenty-third resistor R23 and the second end of the twenty-second resistor R22 are all used to connect to the power supply voltage VCC1. The positive electrode of the battery, the upper plate of the capacitor C10 and the upper plate of the capacitor C11 are all electrically connected between the eighth pin of the real-time clock chip U10 and the negative electrode of the diode D4. The fourth pin of the real-time clock chip U10, the lower plate of the capacitor C8, the lower plate of the capacitor C9, the negative electrode of the battery, the lower plate of the capacitor C10 and the lower plate of the capacitor C11 are all grounded.

[0080] Based on the description of the above embodiment, another possible implementation of the communication conversion device 100 is exemplified. Figure 1 As shown, the communication conversion device 100 may further include: a power module 170 and a power conversion module 180 .

[0081] The input end of the power module 170 is used to access the AC voltage, the output end of the power module 170 is electrically connected to the input end of the power conversion module 180, and the output end of the power conversion module 180 is used to output the power supply voltage VCC1, which is used to power the communication conversion device 100.

[0082] The power supply voltage VCC1 is, for example, 3.3V and 12V.

[0083] The power module 170 can convert an AC voltage into a DC voltage DC. Furthermore, the power module 170 can transmit the DC voltage DC to the power conversion module 180 so that the power conversion module 180 can obtain the DC voltage DC.

[0084] The DC voltage DC is, for example, 24V.

[0085] In this way, the power conversion module 180 can step down the DC voltage DC to obtain the power supply voltage VCC1 , so that the communication conversion device 100 can work normally under the power supply voltage VCC1 .

[0086] Based on the description of the above embodiment, a possible implementation of the power module 170 is exemplified. Figure 3 , Figure 3 This is a schematic diagram of the structure of a power supply module in a communication conversion device provided in one embodiment of the present application. Figure 3 As shown, the power supply module 170 may include: an AC component 171 , a filter 172 , a rectifier bridge 173 and a switching power supply 174 .

[0087] The input end of the AC component 171 is used to access the AC voltage, the output end of the AC component 171 is electrically connected to the input end of the filter 172, the output end of the filter 172 is electrically connected to the input end of the rectifier bridge 173, the output end of the rectifier bridge 173 is electrically connected to the input end of the switching power supply 174, and the output end of the switching power supply 174 is electrically connected to the input end of the power conversion module 180.

[0088] The AC component 171 can transmit the AC voltage to the filter 172 , so that the filter 172 can obtain the AC voltage.

[0089] In this way, the filter 172 can filter the AC voltage to obtain a filtered AC voltage, and the filter 172 can transmit the filtered AC voltage to the rectifier bridge 173 .

[0090] Furthermore, the rectifier bridge 173 can rectify the filtered AC voltage to obtain the first voltage V1 , and the rectifier bridge 173 can transmit the first voltage V1 to the switching power supply 174 so that the switching power supply 174 can obtain the first voltage V1 .

[0091] The first voltage V1 is a DC voltage.

[0092] Thus, the switching power supply 174 can convert the first voltage V1 into a direct current voltage DC.

[0093] The switching power supply 174 is, for example, a flyback switching power supply.

[0094] In some examples, such as Figure 3 As shown, the AC component 171 may include: a fuse resistor F1 , a thermistor RT1 , a varistor RV1 , a capacitor C1 , a seventh resistor R7 , and an eighth resistor R8 .

[0095] The first end of the fuse resistor F1 is used to connect to the live wire LIN, the second end of the fuse resistor F1 is respectively electrically connected to the first end of the varistor RV1, the upper plate of the capacitor C1, the first end of the seventh resistor R7 and the input end of the filter 172, the second end of the seventh resistor R7 is electrically connected to the first end of the eighth resistor R8, the first end of the thermistor RT1 is used to connect to the neutral wire NIN, the second end of the thermistor RT1 is respectively electrically connected to the second end of the varistor RV1, the lower plate of the capacitor C1 and the second end of the eighth resistor R8.

[0096] In some examples, such as Figure 3 As shown, the switching power supply 174 may include: a transformer T1, an electrolytic capacitor EC1, an electrolytic capacitor EC2, an electrolytic capacitor EC3, an electrolytic capacitor EC4, a conversion chip U1, an optocoupler device U7, a controller U9, a diode D1, a diode D2, a diode D3, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20 and a twenty-first resistor R21.

[0097] The upper plate of the electrolytic capacitor EC1, the first end of the ninth resistor R9, the upper plate of the capacitor C2, the upper plate of the capacitor C3 and the opposite-name end of the primary winding in the transformer T1 are electrically connected to the output end of the rectifier bridge 173, the second end of the ninth resistor R9 is electrically connected to the first end of the tenth resistor R10 and the lower plate of the capacitor C2, the second end of the tenth resistor R10 is electrically connected to the negative electrode of the diode D1, the positive electrode of the diode D1 is electrically connected to the same-name end of the primary winding in the transformer T1, the sixth pin, the seventh pin and the eighth pin of the conversion chip U1, and the first pin of the conversion chip U1 is electrically connected to the first end of the eleventh resistor R11 and the first end of the twelfth resistor R12. The third pin of the conversion chip U1 is electrically connected to the cathode of the diode D2 and the upper plate of the electrolytic capacitor EC2 respectively, the anode of the diode D2 is electrically connected to the first end of the thirteenth resistor R13, the second end of the thirteenth resistor R13 is electrically connected to the like-name end of the auxiliary winding in the transformer T1, the lower plate of the electrolytic capacitor EC2 is electrically connected to the opposite-name end of the auxiliary winding, the fourth pin of the conversion chip U1 is electrically connected to the upper plate of the capacitor C4 and the first end of the optocoupler U7 respectively, the lower plate of the electrolytic capacitor EC1, the second end of the eleventh resistor R11, the second end of the twelfth resistor R12, the lower plate of the capacitor C4 and the second end of the optocoupler U7 are all used to access the voltage HGND.

[0098] The like-name ends of the secondary winding in the transformer T1 are electrically connected to the positive electrode of the diode D3 and the first end of the fourteenth resistor R14, respectively. The second end of the fourteenth resistor R14 is electrically connected to the upper plate of the capacitor C5. The negative electrode of the diode D3 is electrically connected to the lower plate of the capacitor C5, the first end of the fifteenth resistor R15, the upper plate of the electrolytic capacitor EC3, the upper plate of the electrolytic capacitor EC4, the first end of the eighteenth resistor R18, the upper plate of the capacitor C7, the first end of the twenty-first resistor R21 and the input end of the power conversion module 180. The second end of the eighteenth resistor R18 is electrically connected to the first end of the nineteenth resistor R19. The opposite-name ends of the secondary winding are electrically connected to the lower plate of the capacitor C3, the lower plate of the electrolytic capacitor EC3, the lower plate of the electrolytic capacitor EC4, the lower plate of the capacitor C7 and the second end of the twenty-first resistor R21, respectively.

[0099] The second end of the fifteenth resistor R15 is electrically connected to the third end of the optocoupler U7 and the first end of the sixteenth resistor R16 respectively, the fourth end of the optocoupler U7 is electrically connected to the second end of the sixteenth resistor R16, the upper plate of the capacitor C6 and the second end of the controller U9 respectively, the lower plate of the capacitor C6 is electrically connected to the first end of the seventeenth resistor R17, the second end of the seventeenth resistor R17 is electrically connected to the first end of the controller U9, the second end of the nineteenth resistor R19 and the first end of the twentieth resistor R20 respectively, and the third end of the controller U9 is electrically connected to the second end of the twentieth resistor R20 and the lower plate of the capacitor C7 respectively.

[0100] The current of the fourth pin of the conversion chip U1 is changed by the optocoupler device U7, thereby changing the duty cycle of the switching power supply 174 to stabilize the direct current voltage DC.

[0101] Based on the description of the above embodiment, a possible implementation of the power conversion module 180 is exemplified. Figure 4 , Figure 4 This is a schematic diagram of the structure of a power conversion module in a communication conversion device provided in one embodiment of the present application. Figure 4 As shown, the power conversion module 180 may include: a step-down conversion component 181 and a linear voltage regulation component 182 .

[0102] The input end of the step-down conversion component 181 is electrically connected to the output end of the power module 170 , and the output end of the step-down conversion component 181 is electrically connected to the input end of the linear voltage regulator component 182 . The output end of the linear voltage regulator component 182 is used to output the power supply voltage VCC1 .

[0103] The step-down conversion component 181 can step-down the DC voltage DC to obtain a second voltage V2. Furthermore, the step-down conversion component 181 can transmit the second voltage V2 to the linear voltage stabilization component 182 so that the linear voltage stabilization component 182 can obtain the second voltage V2.

[0104] The second voltage V2 is, for example, 12 V. The power conversion module 180 can transmit the second voltage V2 to the power carrier module 110 to supply power to the power carrier module 110 .

[0105] In this way, the linear voltage regulator 182 can convert the second voltage V2 into a constant supply voltage VCC1 , and thus the power conversion module 180 can output the supply voltage VCC1 .

[0106] In some examples, such as Figure 4 As shown, the buck conversion component 181 may include: a buck converter chip U2, an inductor L1, an electrolytic capacitor EC5, an electrolytic capacitor EC6, a capacitor C13, a capacitor C14, a twenty-fourth resistor R24 ​​and a twenty-fifth resistor R25.

[0107] The first pin of the buck converter chip U2 is electrically connected to the output end of the power supply module 170, the upper plate of the electrolytic capacitor EC5 and the upper plate of the capacitor C13, respectively. The second pin of the buck converter chip U2 is electrically connected to the lower plate of the electrolytic capacitor EC5 and the lower plate of the capacitor C13, respectively. The fifth pin of the buck converter chip U2 is electrically connected to the first end of the inductor L1, and the second end of the inductor L1 is electrically connected to the first end of the twenty-fourth resistor R24, the upper plate of the capacitor C14, the upper plate of the electrolytic capacitor EC6 and the input end of the linear voltage regulator component 182, respectively. The fourth pin of the buck converter chip U2 is electrically connected to the second end of the twenty-fourth resistor R24 ​​and the first end of the twenty-fifth resistor R25, respectively. The second end of the twenty-fifth resistor R25 is electrically connected to the lower plate of the capacitor C14 and the lower plate of the electrolytic capacitor EC6, respectively.

[0108] In some examples, such as Figure 4 As shown, the linear voltage stabilization component 182 may include: a voltage stabilization chip U8, a capacitor C15, a capacitor C16, a capacitor C17 and a capacitor C18.

[0109] The third pin of the voltage stabilizing chip U8 is electrically connected to the upper plate of capacitor C15, the upper plate of capacitor C16 and the output end of the step-down conversion component 181, respectively. The second pin of the voltage stabilizing chip U8 is electrically connected to the fourth pin of the voltage stabilizing chip U8, the upper plate of capacitor C17 and the upper plate of capacitor C18, respectively. The first pin of the voltage stabilizing chip U8 is electrically connected to the lower plate of capacitor C15, the lower plate of capacitor C16, the lower plate of capacitor C17 and the lower plate of capacitor C18, respectively. The second pin of the voltage stabilizing chip U8 is also used to output the power supply voltage VCC1.

[0110] Based on the description of the above embodiment, a possible implementation of the power carrier module 110 is exemplified. Figure 5 , Figure 5 This is a structural diagram of a power carrier module in a communication conversion device provided in one embodiment of the present application. Figure 5 As shown, the power carrier module 110 may include: a connection port J3 , a first resistor R1 , and a second resistor R2 .

[0111] The first end of the first resistor R1 and the first end of the second resistor R2 are both used to connect to the power supply voltage VCC1, the second end of the first resistor R1 is electrically connected to the fifth end HPLC TXD of the wiring port J3, the second end of the second resistor R2 is electrically connected to the sixth end HPLC RXD of the wiring port J3, and the fifth end HPLC TXD of the wiring port J3 and the sixth end HPLC RXD of the wiring port J3 are also electrically connected to the input end of the microprocessor module 120.

[0112] In some examples, the power carrier module 110 may further include a twenty-sixth resistor R26 , a twenty-seventh resistor R27 , a twenty-eighth resistor R28 , a twenty-ninth resistor R29 , a thirtieth resistor R30 , and a diode D5 .

[0113] The second end of the first resistor R1 is electrically connected to the first end of the twenty-seventh resistor R27, the second end of the twenty-seventh resistor R27 is electrically connected to the sixth end HPLC RXD of the wiring port J3, the second end of the second resistor R2 is electrically connected to the first end of the twenty-sixth resistor R26, the second end of the twenty-sixth resistor R26 is electrically connected to the fifth end HPLC TXD of the wiring port J3, the first end HPLC and the second end of the wiring port J3 are both electrically connected to the cathode of the diode D5, the anode of the diode D5 is used to receive the second voltage V2, the third end PGND and the fourth end of the wiring port J3 are both electrically connected to the first end of the thirtieth resistor R30, the second end of the thirtieth resistor R30 is grounded, the seventh end HPLC INT of the wiring port J3 is electrically connected to the first end of the twenty-eighth resistor R28, the eighth end HPLC of the wiring port J3 is electrically connected to the cathode of the diode D5, and the anode of the diode D5 is used to receive the second voltage V2. RST is electrically connected to the first end of the twenty-ninth resistor R29, the first end of the twenty-sixth resistor R26 and the first end of the twenty-seventh resistor R27 are also electrically connected to the input end of the microprocessor module 120, and the second end of the twenty-eighth resistor R28 and the second end of the twenty-ninth resistor R29 are also electrically connected to the third end of the microprocessor module 120.

[0114] The power carrier module 110 and the microprocessor module 120 use serial communication.

[0115] Based on the description of the above embodiment, an exemplary possible implementation of the RS485 communication module is provided. Figure 6 , Figure 6 This is a schematic diagram of the structure of the RS485 communication module in a communication conversion device provided in one embodiment of the present application. Figure 6 As shown, the first RS485 communication module 130 or the second RS485 communication module 140 may include: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a transceiver chip U5 / U6.

[0116] The first end of the third resistor R3, the first end of the fourth resistor R4 and the first pin of the transceiver chip U5 / U6 are all used to connect to the power supply voltage VCC1, the second end of the third resistor R3 is electrically connected to the third pin of the transceiver chip U5 / U6, the second end of the fourth resistor R4 is electrically connected to the sixth pin of the transceiver chip U5 / U6, the sixteenth pin of the transceiver chip U5 / U6 is electrically connected to the first end of the fifth resistor R5, the second end of the fifth resistor R5 is electrically connected to the twelfth pin of the transceiver chip U5 / U6, the thirteenth pin of the transceiver chip U5 / U6 is electrically connected to the first end of the sixth resistor R6, the third pin of the transceiver chip U5 / U6 and the sixth pin of the transceiver chip U5 / U6 are also electrically connected to the first output end of the microprocessor module 120 or the second output end of the microprocessor module 120, the twelfth pin of the transceiver chip U5 / U6 and the thirteenth pin of the transceiver chip U5 / U6 are also electrically connected to the circuit breaker 300 or the gateway 400, and the second end of the sixth resistor R6 is grounded.

[0117] The first RS485 communication module 130 or the second RS485 communication module 140 uses a transceiver chip U5 / U6 with an integrated isolated power supply.

[0118] In some examples, the first RS485 communication module 130 or the second RS485 communication module 140 may further include: capacitor C19, capacitor C20, capacitor C21, capacitor C22, a thirty-first resistor R31, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, a diode D6, a diode D7, and a diode D8.

[0119] The upper plate of capacitor C19 and the upper plate of capacitor C20 are both electrically connected to the first end of the third resistor R3, the fourth pin and the fifth pin of the transceiver chip U5 / U6 are both electrically connected to the first end of the thirty-first resistor R31, the upper plate of capacitor C21 and the upper plate of capacitor C22 are both electrically connected to the first end of the fifth resistor R5, the first end of the thirty-second resistor R32 and the first end of the thirty-third resistor R33 are both electrically connected to the second end of the fifth resistor R5, and the second end of the thirty-second resistor R32 is electrically connected to the first end of the fifth resistor R5. The first end of the thirty-fourth resistor R34 and the first end of the sixth resistor R6 are electrically connected respectively, the second end of the thirty-third resistor R33 is electrically connected respectively to the first end of the diode D6 and the first end of the diode D7, the second end of the thirty-fourth resistor R34 is electrically connected respectively to the second end of the diode D7 and the first end of the diode D8, the lower plate of capacitor C19, the lower plate of capacitor C20, the lower plate of capacitor C21, the lower plate of capacitor C22, the second end of diode D6 and the second end of diode D8 are grounded.

[0120] The twelfth pin of the transceiver chip U5 / U6 and the thirteenth pin of the transceiver chip U5 / U6 are communication interfaces of the first RS485 communication module 130 or the second RS485 communication module 140 .

[0121] Among them, in the case of the first RS485 communication module 130, the transceiver chip is represented by the letter U5, the third pin of the transceiver chip U5 is represented by the letter USART2_RX, the fourth pin of the transceiver chip U5 is represented by the letter USART2_DIRX, the sixth pin of the transceiver chip U5 is represented by the letter USART2_TX, the thirteenth pin of the transceiver chip U5 is represented by the letter 485_1B, and the twelfth pin of the transceiver chip U5 is represented by the letter 485_1A.

[0122] Among them, in the case of the second RS485 communication module 140, the transceiver chip is represented by the letters U6, the third pin of the transceiver chip U5 is represented by the letters USART1_RX, the fourth pin of the transceiver chip U5 is represented by the letters USART1_DIRX, the sixth pin of the transceiver chip U5 is represented by the letters USART1_TX, the thirteenth pin of the transceiver chip U5 is represented by the letters 485_2B, and the twelfth pin of the transceiver chip U5 is represented by the letters 485_2A.

[0123] The diode D6 , the diode D7 , and the diode D8 are transient voltage suppressor diodes that implement a surge protection function for the communication interface of the first RS485 communication module 130 or the second RS485 communication module 140 .

[0124] Based on the description of the above embodiment, a possible implementation of the micro-processing module 120 is exemplified. Figure 7 , Figure 7 This is a structural diagram of a microprocessor module in a communication conversion device provided in one embodiment of the present application. Figure 7 As shown, the micro-processing module 120 may include: a control chip U4.

[0125] The 29th pin and the 30th pin of the control chip U4 are both electrically connected to the output end of the power carrier module 110, the 43rd pin or the 17th pin of the control chip U4 is electrically connected to the third pin of the transceiver chip U5 / U6, and the 42nd pin or the 16th pin of the control chip U4 is electrically connected to the 6th pin of the transceiver chip U5 / U6.

[0126] In some examples, the micro-processing module 120 may further include a capacitor C23 and a thirty-fifth resistor R35 .

[0127] The sixty-third pin of the control chip U4 is electrically connected to the first end of the thirty-fifth resistor R35, the second end of the thirty-fifth resistor R35 is electrically connected to the sixtieth pin of the control chip U4, and the first three pins of the control chip U4 and the upper plate of the capacitor C23 are both used to access the power supply voltage VCC1.

[0128] Among them, pins 33, 34, 35, and 36 of the control chip U4 are the first terminals of the microprocessor module 120. Pins 61 and 62 of the control chip U4 are the second terminals of the microprocessor module 120. Pins 27 and 28 of the control chip U4 are the second terminals of the microprocessor module 120. Pins 29 and 30 of the control chip U4 are the input terminals of the microprocessor module 120. Pins 43 and 42 of the control chip U4, or pins 16 and 17 of the control chip U4, are the output terminals of the microprocessor module 120.

[0129] The fifteenth pin of the control chip U4 is electrically connected to the fourth pin of the transceiver chip U5, and the forty-first pin of the control chip U4 is electrically connected to the fourth pin of the transceiver chip U6.

[0130] The twenty-seventh pin of the control chip U4 is used to control the initialization of the power carrier module 110 , and the twenty-eighth pin of the control chip U4 is used to control the reset of the power carrier module 110 .

[0131] The embodiment of the present application further provides a circuit breaker, which includes: the communication conversion device 100 provided in the embodiment of the present application.

[0132] The circuit breaker provided in the embodiment of the present application has the same beneficial effects as the communication conversion device provided in the embodiment of the present application, which will not be repeated here.

[0133] Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication conversion device for a circuit breaker, characterized in that: The communication conversion device includes: a power carrier module, a microprocessor module and a first RS485 communication module; The input end of the power carrier module is electrically connected to the host computer, the output end of the power carrier module is electrically connected to the input end of the microprocessor module, the first output end of the microprocessor module is electrically connected to the input end of the first RS485 communication module, and the output end of the first RS485 communication module is electrically connected to the circuit breaker; The power carrier module is configured to obtain a first communication data packet from the host computer through a first communication protocol and transmit the first communication data packet to the microprocessor module; The microprocessor module is configured to parse the first communication data packet, encapsulate the data packet according to a second communication protocol to obtain a second communication data packet, and transmit the second communication data packet to the first RS485 communication module, where the second communication protocol is the protocol adopted by the circuit breaker; The first RS485 communication module is used to send the second communication data packet to the circuit breaker, so that the circuit breaker executes the second communication data packet, and transmits the feedback result of the second communication data packet to the host computer.

2. The communication conversion device according to claim 1, characterized in that: The communication conversion device further comprises: a second RS485 communication module; The input end of the second RS485 communication module is electrically connected to the second output end of the microprocessor module, and the input end of the second RS485 communication module is electrically connected to the gateway; The second RS485 communication module is used to obtain a third communication data packet from the gateway and transmit the third communication data packet to the microprocessor module; The microprocessor module is configured to parse the third communication data packet, encapsulate the data packet according to the third communication protocol, obtain a fourth communication data packet, transmit the fourth communication data packet to the first RS485 communication module, so that the circuit breaker executes the fourth communication data packet, and transmit a feedback result of the fourth communication data packet to the gateway, thereby realizing communication between the circuit breaker and the gateway.

3. The communication conversion device according to claim 2, characterized in that: The communication conversion device further includes: a storage module and / or a clock module; The storage module is electrically connected to a first end of the microprocessor module, and the clock module is electrically connected to a second end of the microprocessor module; The storage module is used to store the upgraded firmware and control parameters of the circuit breaker; The clock module is used to provide a clock signal to the micro-processing module, so that the micro-processing module configures a timestamp in the second communication data packet or the fourth communication data packet according to the clock signal.

4. The communication conversion device according to any one of claims 1 to 3, characterized in that: The communication conversion device further comprises: a power supply module and a power conversion module; The input end of the power supply module is used to receive an AC voltage, the output end of the power supply module is electrically connected to the input end of the power conversion module, and the output end of the power conversion module is used to output a supply voltage, and the supply voltage is used to power the communication conversion device; The power supply module is used to convert the AC voltage into a DC voltage and transmit the DC voltage to the power conversion module; The power conversion module is used to step down the DC voltage to obtain the supply voltage.

5. The communication conversion device according to claim 4, characterized in that: The power supply module includes: an AC component, a filter, a rectifier bridge and a switching power supply; The input end of the AC component is used to receive the AC voltage, the output end of the AC component is electrically connected to the input end of the filter, the output end of the filter is electrically connected to the input end of the rectifier bridge, the output end of the rectifier bridge is electrically connected to the input end of the switching power supply, and the output end of the switching power supply is electrically connected to the input end of the power conversion module; The AC component is used to transmit the AC voltage to the filter; The filter is used to filter the AC voltage to obtain a filtered AC voltage, and transmit the filtered AC voltage to the rectifier bridge; The rectifier bridge is used to rectify the filtered AC voltage to obtain a first voltage, and transmit the first voltage to the switching power supply; The switching power supply is used to convert the first voltage into the DC voltage.

6. The communication conversion device according to claim 4, characterized in that: The power conversion module includes: a step-down conversion component and a linear voltage stabilization component; The input end of the step-down conversion component is electrically connected to the output end of the power supply module, the output end of the step-down conversion component is electrically connected to the input end of the linear voltage regulator component, and the output end of the linear voltage regulator component is used to output the supply voltage; The step-down conversion component is used to step-down the DC voltage to obtain a second voltage, and transmit the second voltage to the linear voltage stabilization component; The linear voltage stabilizing component is used to convert the second voltage into the constant supply voltage.

7. The communication conversion device according to any one of claims 1 to 3, characterized in that: The power carrier module includes: a connection port, a first resistor and a second resistor; The first end of the first resistor and the first end of the second resistor are both used to access the power supply voltage, the second end of the first resistor is electrically connected to the sixth end of the wiring port, the second end of the second resistor is electrically connected to the fifth end of the wiring port, and the fifth end of the wiring port and the sixth end of the wiring port are also electrically connected to the input end of the microprocessor module.

8. The communication conversion device according to claim 2 or 3, characterized in that: The first RS485 communication module or the second RS485 communication module includes: a third resistor, a fourth resistor, a fifth resistor, a sixth resistor and a transceiver chip; The first end of the third resistor, the first end of the fourth resistor, and the first pin of the transceiver chip are all used to access the power supply voltage. The second end of the third resistor is electrically connected to the third pin of the transceiver chip. The second end of the fourth resistor is electrically connected to the sixth pin of the transceiver chip. The sixteenth pin of the transceiver chip is electrically connected to the first end of the fifth resistor. The second end of the fifth resistor is electrically connected to the twelfth pin of the transceiver chip. The thirteenth pin of the transceiver chip is electrically connected to the first end of the sixth resistor. The third pin and the sixth pin of the transceiver chip are also electrically connected to the first output end of the microprocessor module or the second output end of the microprocessor module. The twelfth pin and the thirteenth pin of the transceiver chip are also electrically connected to the circuit breaker or the gateway. The second end of the sixth resistor is grounded.

9. The communication conversion device according to claim 8, characterized in that: The microprocessor module includes: a control chip; The 29th pin and the 30th pin of the control chip are both electrically connected to the output end of the power carrier module, the 43rd pin or the 17th pin of the control chip is electrically connected to the third pin of the transceiver chip, and the 42nd pin or the 16th pin of the control chip is electrically connected to the 6th pin of the transceiver chip.

10. A circuit breaker, characterized in that: include: The communication conversion device according to any one of claims 1 to 9.

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