CN215817584U - Charger control device - Google Patents

Abstract

The utility model aims to provide a charger control device which is simple in structure, low in cost, strong in compatibility, good in reliability and modularly arranged. The device comprises a control board, wherein a power supply module (1) for supplying power to each module arranged on the control board is arranged on the control board; the MCU control module (2) is used for collecting information fed back by each module and sending out a corresponding control instruction according to the fed-back information; the isolated communication module (3) is used for outputting a signal output by the MCU control module to the equipment (7) needing to be charged; the data acquisition and transmission module (4) is used for acquiring a charging signal of the equipment to be charged, feeding the charging signal back to the MCU control module and transmitting the signal to the equipment to be charged; the relay output module (5) is used for receiving a control signal from the MCU control module; a switching value input/output module (6) for providing switching value input and output for the device; and a display module. The utility model can be applied to the field of chargers.

Description

Charger control device

Technical Field

The utility model relates to the field of chargers, in particular to a charger control device.

Background

With the development of science and technology, energy conservation and emission reduction are advocated nationwide. The electric energy is an energy source with energy saving and environmental protection. Based on this, the application of the charger is gradually popularized. If the electric automobile is rapidly developed today, the charger can provide charging service for the electric automobile; in the industrial field, the charger can provide charging service for mobile industrial electric equipment with an electric storage function, such as a forklift, a robot and the like. The number of charger products in the current market is large, and the performance parameters of chargers designed and produced by different manufacturers are different. When the charger charges, the difference of the parameters of the charger causes the difference of the charging quality. In addition, the current chargers generally have high cost, and many chargers are special for special machines and have poor compatibility. In order to ensure the consistency of the charging quality and the charging effect, a charger with reliable performance parameters, strong universality and compatibility and simple structure is necessary to be designed, so that the charging quality can be ensured while the low cost is ensured, and the charger has high compatibility and reliability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a charger control device which is simple in structure, low in cost, strong in compatibility, good in reliability and modularly arranged.

The technical scheme adopted by the utility model is as follows: the utility model comprises a control panel, on which a control panel is arranged

The power supply module is used for supplying power to each module of the device on the control panel;

the MCU control module is in communication connection with the isolated communication module, the data acquisition and transmission module, the relay output module and the switching value input and output module respectively, and is used for detecting whether a working power supply of the device is normal, acquiring information fed back by each module and sending a corresponding control instruction according to the fed-back information;

the isolated communication module is in isolated communication with the MCU control module and the equipment to be charged and is used for outputting a signal output by the MCU control module to the equipment to be charged, and the isolated communication module is provided with a standby communication interface;

the data acquisition and transmission module is respectively in communication connection with the MCU control module and the equipment to be charged, is used for acquiring a charging signal of the equipment to be charged and feeding the charging signal back to the MCU control module, and receives the signal transmitted by the MCU control module and transmits the signal to the equipment to be charged;

the relay output module is respectively in communication connection with the MCU control module and the equipment to be charged and is used for receiving a control signal from the MCU control module so as to control the action of a peripheral operation mechanism of the MCU control module;

the switching value input and output module is respectively in communication connection with the MCU control module and the equipment to be charged and is used for providing switching value input and output for the device;

and the display module is connected with the isolated communication module and is used for displaying the information sent by the MCU control module.

The scheme shows that the utility model adopts the modularized design to respectively arrange the power supply module, the MCU control module, the isolated communication module, the data acquisition and transmission module, the relay output module, the switching value input/output module and the display module, and simultaneously arranges the modules on the control panel, thereby realizing simpler overall structure from the structure and greatly reducing the cost, the isolated communication module is used for isolating and communicating the MCU control module with peripheral equipment needing charging, the influence of the output signal of the equipment needing charging, which is subjected to mutation, on the MCU control module is prevented, the whole device has better stability and reliability, in addition, the isolated communication module, the relay output module and the switching value input/output module are simultaneously adopted to realize communication connection, and the multi-mode communication mode greatly improves the compatibility of the device, the whole control device can meet the application of chargers of different models.

Further, the power supply module comprises a rectifying circuit, a 6V voltage stabilizing circuit, a linear voltage stabilizing circuit, a reverse output circuit and two isolating circuits, wherein the rectifying circuit rectifies alternating current or direct current input from the periphery into stable direct current, the 6V voltage stabilizing circuit reduces voltage output by the rectifying circuit to obtain stable 6V voltage, the linear voltage stabilizing circuit reduces the 6V voltage output by the 6V voltage stabilizing circuit into 5V voltage, the reverse output circuit inverts the 6V voltage output by the 6V voltage stabilizing circuit into-6V voltage, and the two isolating circuits output the 5V voltage output by the linear voltage stabilizing circuit into two +5V isolating voltages. Therefore, the power supply module can provide stable multiple integral voltage and reverse voltage output for the whole device, multi-voltage power supply output is achieved, and power supply requirements of different modules of the whole device are met.

Still further, the MCU control module adopts a single chip microcomputer with the model number of dsPIC30F, and the single chip microcomputer is connected with a five-position dial switch. Therefore, the mature single chip microcomputer with the model number of dsPIC30F is used as a main control chip of the MCU control module, and the performance stability of the device is ensured; in addition, the MCU control module combines different high and low levels of each address bit in the switch into different address information by detecting the state of each address bit of the five-bit dial switch, and feeds the different address information back to the MCU control module for control under various states.

Still further, the isolated communication module is provided with two RS485 communication interfaces electrically isolated from the MCU control module and two CAN communication interfaces electrically isolated from the MCU control module, wherein one RS485 communication interface is connected with a display interface controller of the charger; the other RS485 communication interface is a reserved interface; one path of the CAN communication interface is respectively connected with the MCU control module and the power module of the charger, and the other path of the CAN communication interface is connected with equipment to be charged. Therefore, communication is realized by adopting an isolation mode, as mentioned above, the charging equipment and the MCU control module which are required to be charged can be isolated, the influence of the mutated signals on the input and output ends of the MCU control module is avoided, even the control panel is burnt out, in addition, the setting of the reserved interface can meet the requirements of subsequent development, the device can meet the occasions with different requirements, and the device has better compatibility and the interconversion with other communication modes.

Still further, the data acquisition and transmission module comprises a data acquisition circuit and a data transmission circuit, wherein the data acquisition circuit is composed of an ADC circuit, and the data transmission circuit is composed of a DAC circuit. Therefore, the data acquisition is carried out by adopting the ADC circuit and the data transmission is carried out by adopting the DAC circuit, the accuracy of the data acquisition and transmission can be greatly improved, and the guarantee is provided for the accurate control of the whole device.

In addition, the relay output module comprises seven paths of relay outputs, wherein five paths of relay outputs are single-pole single-throw output relays, and the other two paths of relay outputs are single-pole double-throw output relays. Therefore, the seven relays are adopted for output, the requirement of multi-path output can be met, and the relays can effectively isolate the influence of external interference on the inside of the device.

Further, the switching value input and output module comprises six switching value inputs and four switching value outputs, wherein the two switching value inputs are isolated inputs. Therefore, the switching value input and output module can meet the requirements of multi-path switching value input and output.

More specifically, the peripheral operating mechanisms of the MCU control module include, but are not limited to, an audible and visual alarm, an on-line dc contactor switch, an off-line dc contactor switch, and a fan. Of course, the peripheral operating mechanisms are not known and may be increased or decreased as desired, as the case may be.

Drawings

FIG. 1 is a block diagram of a simplified configuration of the present invention;

FIG. 2 is a circuit schematic of a first portion of the power supply module;

FIG. 3 is a circuit schematic of a second portion of the power supply module;

FIG. 4 is a circuit schematic of the MCU control module;

FIG. 5 is a circuit schematic of the first portion of the isolated communication module;

FIG. 6 is a circuit schematic of a second portion of the isolated communication module;

FIG. 7 is a schematic circuit diagram of a first portion of the data acquisition and transmission module;

FIG. 8 is a schematic circuit diagram of a second portion of the data acquisition and transmission module;

FIG. 9 is a schematic circuit diagram of a third portion of the data acquisition and transmission module;

FIG. 10 is a circuit schematic of a first portion of the relay output module;

FIG. 11 is a circuit schematic of a second portion of the relay output module;

fig. 12 is a schematic circuit diagram of the switching value input/output module.

Detailed Description

As shown in FIG. 1, the present invention includes a control panel having a control panel mounted thereon

The power supply module 1 is used for supplying power to each module of the device on the control panel;

the MCU control module 2 is respectively in communication connection with the isolated communication module 3, the data acquisition and transmission module 4, the relay output module 5 and the switching value input and output module 6, and is used for detecting whether a working power supply of the device is normal, acquiring information fed back by each module and sending a corresponding control instruction according to the fed-back information;

the isolated communication module 3 is in isolated communication with the MCU control module 2 and the equipment to be charged 7 and is used for outputting a signal output by the MCU control module 2 to the equipment to be charged 7, and the isolated communication module 3 is provided with a standby communication interface;

the data acquisition and transmission module 4 is respectively in communication connection with the MCU control module 2 and the equipment to be charged 7, and is used for acquiring a charging signal of the equipment to be charged 7, feeding the charging signal back to the MCU control module 2, receiving the signal transmitted by the MCU control module 2 and transmitting the signal to the equipment to be charged 7;

the relay output module 5 is respectively in communication connection with the MCU control module 2 and the equipment to be charged 7 and is used for receiving a control signal from the MCU control module 2 so as to control the action of a peripheral operation mechanism of the MCU control module 2; here, the peripheral operation mechanisms include, but are not limited to, an audible and visual alarm device, an on-line dc contactor switch, an off-line dc contactor switch, and a fan;

the switching value input/output module 6 is respectively in communication connection with the MCU control module 2 and the equipment to be charged 7 and is used for providing switching value input and output for the device;

and the display module is connected with the isolated communication module 3 and used for displaying the information issued by the MCU control module 2. Specifically, the following is made.

As shown in fig. 2-3, the power supply module 1 includes a rectifying circuit, a 6V voltage stabilizing circuit, a linear voltage stabilizing circuit, a reverse output circuit, and two isolation circuits, the rectifying circuit rectifies ac or dc input from the periphery into stable dc, the 6V voltage stabilizing circuit steps down the voltage output from the rectifying circuit to obtain stable 6V voltage, the linear voltage stabilizing circuit steps down the 6V voltage output from the 6V voltage stabilizing circuit into 5V voltage, the reverse output circuit inverts the 6V voltage output from the 6V voltage stabilizing circuit into-6V voltage, and the two isolation circuits output the 5V voltage output from the linear voltage stabilizing circuit into two +5V isolation voltages.

As shown in fig. 4, the MCU control module 2 is a single chip microcomputer U30 with a model number dsPIC30F, and the single chip microcomputer is connected with a five-position dial switch SW 1. The single chip microcomputer U30 starts working, the pin 16 of the single chip microcomputer U30 detects the reference voltage of the MCU control module, if the reference voltage is in an allowable range, the MCU control module is in a normal working state, otherwise, the MCU control module sends an error message alarm; the MCU control module detects the state of each address bit of the five-bit dial switch SW1, different address information is combined by different high and low levels of each address bit in the switch, and the different address information is fed back to the control system for control.

As shown in fig. 5-6, the isolated communication module 3 is provided with two RS485 communication interfaces electrically isolated from the MCU control module 2 and two CAN communication interfaces electrically isolated from the MCU control module 2, wherein one of the RS485 communication interfaces is connected to a display module of a charger, and a controller of the display module CAN display information to be displayed by the MCU control module 2 in an RS485 communication manner, and meanwhile, an operator CAN send a control command to the MCU control module 2 through the interfaces; the other RS485 communication interface is a reserved interface, can be programmed according to actual needs, and can be converted into another communication mode by an additional adapter to realize interface expansion; one path of the CAN communication interface is respectively connected with the MCU control module 2 and a power module of the charger, state information of the power module of the charger, such as voltage, current, fault state and the like output by the power module, is obtained through the communication mode, and the MCU control module also issues control instructions to the power module through the mode, such as charging voltage, charging current, whether to turn on or turn off the power module and the like which are required to be output by the power module; and the MCU control module acquires the information state of the storage battery, issues a control instruction to a battery end, or CAN be externally connected to the CAN-to-WIFI module to convert the original wired communication mode of the device into a wireless WiFi communication mode for communication.

As shown in fig. 7 to 9, the data acquisition and transmission module 4 includes a data acquisition circuit composed of an ADC circuit and a data transmission circuit composed of a DAC circuit. The ADC data acquisition circuit and the DAC sending circuit are built by common operational amplifiers, and the part of circuits can acquire information required by the system and send some analog signals to other charging system modules.

As shown in fig. 10-11, the relay output module 5 includes seven relay outputs, wherein five relay outputs are single-pole single-throw output relays, and can be used for controlling switches of an audible and visual alarm device, an on-line dc contactor switch, an off-line dc contactor switch, a fan and the like; and the other two paths are single-pole double-throw output relays, and the two paths of relays are combined into the extending (forward rotation) and retracting (reverse rotation) functions of the direct-current electric pushing motor of the charging system, so that the automatic operation of a charging gun on the charger is realized.

As shown in fig. 12, the switching value input/output module 6 includes six switching value inputs and four switching value outputs, where the two switching value inputs are isolation inputs. The part of the circuit provides common switching value input and output for the device.

In the utility model, an external power supply supplies a low-voltage alternating current, and the low-voltage alternating current is converted into a direct current (VH) with the range of 20VDC to 30VDC by a rectifying circuit of the device, or the direct current (VH) with the range of 20VDC to 30VDC is directly supplied from the outside to provide an energy source for the device. After the power supplies of all levels are established, the control panel is electrified to start working, whether the working power supply of the system is normal or not is detected automatically, the feedback information of function acquisition of each module is acquired after the working power supply of the system is normal, corresponding control is carried out on the feedback information, and the charging machine can stably and reliably charge the equipment to be charged.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the utility model are possible to those skilled in the art, without departing from the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a quick-witted controlling means charges, includes the control panel, its characterized in that: on the control panel is arranged

The power supply module (1) is used for supplying power to each module of the device on the control panel;

the MCU control module (2) is in communication connection with the isolated communication module (3), the data acquisition and transmission module (4), the relay output module (5) and the switching value input and output module (6) respectively, and is used for detecting whether a working power supply of the device is normal, acquiring information fed back by each module and sending a corresponding control instruction according to the fed-back information;

the isolation type communication module (3) is in isolation communication with the MCU control module (2) and the equipment (7) to be charged and is used for outputting a signal output by the MCU control module (2) to the equipment (7) to be charged, and the isolation type communication module (3) is provided with a standby communication interface;

the data acquisition and transmission module (4) is respectively in communication connection with the MCU control module (2) and the equipment (7) to be charged, is used for acquiring a charging signal of the equipment (7) to be charged and feeding the charging signal back to the MCU control module (2), and receives the signal transmitted by the MCU control module (2) and transmits the signal to the equipment (7) to be charged;

the relay output module (5) is respectively in communication connection with the MCU control module (2) and the equipment (7) to be charged and is used for receiving a control signal from the MCU control module (2) so as to control the action of a peripheral operation mechanism of the MCU control module (2);

the switching value input and output module (6) is respectively in communication connection with the MCU control module (2) and the equipment (7) to be charged and is used for providing switching value input and output for the device;

and the display module is connected with the isolated communication module (3) and is used for displaying the information issued by the MCU control module (2).

2. The charger control device according to claim 1, characterized in that: the power supply module (1) comprises a rectifying circuit, a 6V voltage stabilizing circuit, a linear voltage stabilizing circuit, a reverse output circuit and two isolating circuits, wherein the rectifying circuit rectifies alternating current or direct current input from the periphery into stable direct current, the 6V voltage stabilizing circuit reduces voltage output by the rectifying circuit to obtain stable 6V voltage, the linear voltage stabilizing circuit reduces the 6V voltage output by the 6V voltage stabilizing circuit into 5V voltage, the reverse output circuit inverts the 6V voltage output by the 6V voltage stabilizing circuit into-6V voltage, and the two isolating circuits output the 5V voltage output by the linear voltage stabilizing circuit into two +5V isolating voltages.

3. The charger control device according to claim 1, characterized in that: the MCU control module (2) adopts a single chip microcomputer with the model number of dsPIC30F, and the single chip microcomputer is connected with a five-position dial switch (SW 1).

4. The charger control device according to claim 1, characterized in that: the isolated communication module (3) is provided with two RS485 communication interfaces electrically isolated from the MCU control module (2) and two CAN communication interfaces electrically isolated from the MCU control module (2), wherein one RS485 communication interface is connected with a display interface controller of a charger; the other RS485 communication interface is a reserved interface; one path of the CAN communication interface is respectively connected with the MCU control module (2) and the power module of the charger, and the other path of the CAN communication interface is connected with equipment to be charged.

5. The charger control device according to claim 1, characterized in that: the data acquisition and transmission module (4) comprises a data acquisition circuit and a data transmission circuit, wherein the data acquisition circuit consists of an ADC circuit, and the data transmission circuit consists of a DAC circuit.

6. The charger control device according to claim 1, characterized in that: the relay output module (5) comprises seven paths of relay outputs, wherein five paths of relay outputs are single-pole single-throw output relays, and the other two paths of relay outputs are single-pole double-throw output relays.

7. The charger control device according to claim 1, characterized in that: the switching value input and output module (6) comprises six switching value inputs and four switching value outputs, wherein the two switching value inputs are isolated inputs.

8. The charger control device according to claim 1, characterized in that: peripheral operation mechanisms of the MCU control module (2) comprise but are not limited to an audible and visual alarm device, an on-line direct current contactor switch, an off-line direct current contactor switch and a fan.

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