CN218472774U - Power supply control device of circuit breaker - Google Patents
Power supply control device of circuit breaker Download PDFInfo
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- CN218472774U CN218472774U CN202222412427.5U CN202222412427U CN218472774U CN 218472774 U CN218472774 U CN 218472774U CN 202222412427 U CN202222412427 U CN 202222412427U CN 218472774 U CN218472774 U CN 218472774U
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Abstract
The application provides a power supply control device of circuit breaker includes: judging whether the central processing unit circuit is powered by the power supply module; if the central processing unit circuit is powered by the power supply module, judging whether the current value is greater than a first threshold value; if the current value is larger than the first threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module; and if the current value is smaller than or equal to the first threshold value, outputting an instruction for adjusting the power supply module and the mutual inductor to supply power for the central processing unit circuit and the accessory module together. The power supply mode of the central processing unit circuit of the circuit breaker and the accessory module comprises two modes of power supply through a power supply module and power supply through a mutual inductor, when the circuit breaker is powered on, if the power supply module outside is detected to supply power, dynamic monitoring is carried out on the energy of the mutual inductor, when the energy of the mutual inductor is enough, the power supply of the power supply module is turned off, the mutual inductor is preferentially used for supplying power, the mutual inductor is fully used for supplying power, and the electric energy is saved.
Description
Technical Field
The application relates to the technical field of circuit breakers, in particular to a power supply control device of a circuit breaker.
Background
In the prior art, there are two main power supply modes for a circuit breaker controller: the transformer supplies power and the auxiliary power supply supplies power.
The mutual inductor power supply is realized by taking power from a mutual inductor current mutual inductor and forming output through a rectifying circuit, an energy storage circuit is connected between two output ends of the rectifying circuit in a bridging manner, and the energy required by the tripping of a driving unit driven tripper is stored by the energy storage circuit; meanwhile, the rear end of the controller is connected with a switching power supply chip to supply power to the whole controller.
The auxiliary power supply is powered by an external power supply and is directly connected with the switching power supply chip to supply power to the whole controller.
Because the mutual inductor power supply and the auxiliary power supply are carried out in parallel and do not interfere with each other, when the two power supply modes are both in use, under the condition that the energy of the coil of the mutual inductor is large, the energy can be released only through the discharge loop, and thus the energy waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a power supply control device of circuit breaker for solve current mutual-inductor power supply and auxiliary power supply two kinds of modes and go on in parallel, mutually noninterfere, when two kinds of power supply modes are all in the time, under the big circumstances of mutual-inductor coil energy, can only lead to the extravagant problem of energy to the energy release through the return circuit of releasing.
The power supply control method of the breaker comprises the steps that the breaker comprises a mutual inductor, a power supply conversion circuit, a current signal acquisition module, a central processing unit circuit and an accessory module;
the first output end of the mutual inductor is connected with the first input end of the power supply conversion circuit,
the second input end of the power supply conversion circuit is used for being connected with the output end of an external power supply module, the second output end of the mutual inductor is connected to the central processor circuit through the current signal acquisition module, the central processor circuit is connected with the power supply conversion circuit, and the power supply conversion circuit is also connected with the accessory module;
the power supply conversion circuit is used for receiving an instruction sent by the central processing unit circuit and disconnecting or closing the connection between the mutual inductor and/or the power supply module and the central processing unit circuit and/or the accessory module according to the instruction;
the current signal acquisition module is used for acquiring a current value representing the energy of the mutual inductor;
the method is applied to a central processing unit circuit, and comprises the following steps:
judging whether the central processing unit circuit is powered by the power supply module;
if the central processing unit circuit is powered by the power supply module, judging whether the current value is greater than a first threshold value;
if the current value is larger than the first threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module;
and if the current value is smaller than or equal to the first threshold value, outputting an instruction for adjusting the power supply module and the mutual inductor to supply power for the central processing unit circuit and the accessory module together.
Among the above-mentioned technical scheme, the central processing unit circuit of circuit breaker and the power supply mode of annex module include through power module power supply and through mutual-inductor power supply two kinds of modes, when the circuit breaker is electrified, if detect that there is outside power module to supply power, then carry out dynamic monitoring to the energy of mutual-inductor, when the energy of mutual-inductor is enough big, close power module's power supply, preferentially use the mutual-inductor to supply power, make full use of mutual-inductor power supply has practiced thrift the electric energy.
In some optional embodiments, after determining whether the central processing unit circuit is powered by the power supply module, the method further includes:
if the central processing unit circuit is not powered by the power supply module, outputting an instruction for adjusting a power supply object of the mutual inductor according to the magnitude of the current value.
Among the above-mentioned technical scheme, the central processing unit circuit of circuit breaker and the power supply mode of accessory module include through power module power supply and through the mutual-inductor power supply dual mode, when outside power module has been connected to the circuit breaker, can be supplied power by power module, under the unable circumstances of supplying power of power module, carry out dynamic monitoring to the energy of mutual-inductor, according to the energy size of mutual-inductor, confirm the power supply object of mutual-inductor, thereby intelligence switches the power supply into controller and accessory module, for example, the controller normal power supply is guaranteed to priority, or the normal power supply of controller and important accessory module is guaranteed to priority.
In some optional embodiments, the outputting of the instruction for adjusting the power supply object of the transformer according to the magnitude of the current value includes:
judging whether the current value is larger than a second threshold value; wherein the second threshold is less than or equal to the first threshold;
if yes, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module; if not, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit.
In the technical scheme, when the breaker cannot supply power through an external power module, the energy of the mutual inductor is dynamically monitored, and a power supply object of the mutual inductor is determined according to the energy of the mutual inductor; when the energy of the mutual inductor is monitored to only supply power to the central processing unit circuit, an instruction for adjusting the mutual inductor to supply power to the central processing unit circuit is output.
In some optional embodiments, the accessory module comprises three power priority modules, wherein a first power priority module comprises a temperature sampling module and/or a wireless communication module, a second power priority module comprises an I/O module, and a third power priority module comprises a 485 communication module and/or a TCP/IP network module;
according to the magnitude of the current value, outputting a command for adjusting a power supply object of the mutual inductor, wherein the command comprises the following steps:
and if the current value is determined to be larger than the third threshold value and smaller than or equal to the second threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit, the first power supply priority module and the second power supply priority module.
And if the current value is determined to be larger than the fourth threshold value and smaller than or equal to the third threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the first power supply priority module.
If the current value is determined to be larger than the fifth threshold value and smaller than or equal to the fourth threshold value, outputting an instruction for adjusting the mutual inductor into the central processing unit circuit;
wherein the second threshold > the third threshold > the fourth threshold > the fifth threshold.
In the technical scheme, the accessory module comprises a plurality of modules, the modules are divided into three types according to power supply priority, and when the current value is greater than a fifth threshold value and less than or equal to a fourth threshold value, the energy of the mutual inductor is small at the moment and only can supply power for the central processing unit circuit; when the current value is greater than the fourth threshold value and less than or equal to the third threshold value, the energy of the mutual inductor preferentially supplies power to the central processor circuit and the first power supply priority module; when the current value is greater than the third threshold and less than or equal to the second threshold, the energy of the mutual inductor supplies power to the central processing unit circuit, the first power supply priority module and the second power supply priority module; when the current value is greater than the second threshold value, the energy of the transformer is sufficient to power all of the central processor circuit and the accessory module.
The power supply control device of the circuit breaker comprises a mutual inductor, a power supply conversion circuit, a current signal acquisition module, a central processing unit circuit and an accessory module;
the first output end of the mutual inductor is connected with the first input end of the power supply conversion circuit,
the second input end of the power supply conversion circuit is used for being connected with the output end of an external power supply module, the second output end of the mutual inductor is connected to the central processor circuit through the current signal acquisition module, the central processor circuit is connected with the power supply conversion circuit, and the power supply conversion circuit is also connected with the accessory module;
the power supply conversion circuit is used for receiving an instruction sent by the central processing unit circuit and disconnecting or closing the connection between the mutual inductor and/or the power supply module and the central processing unit circuit and/or the accessory module according to the instruction;
the current signal acquisition module is used for acquiring a current value representing the energy of the mutual inductor;
the central processing unit circuit is used for:
judging whether the central processing unit circuit is powered by the power supply module;
if the central processing unit circuit is powered by the power supply module, judging whether the current value is greater than a first threshold value;
if the current value is larger than the first threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module;
and if the current value is smaller than or equal to the first threshold value, outputting an instruction for adjusting the power supply module and the mutual inductor to supply power for the central processing unit circuit and the accessory module together.
Among the above-mentioned technical scheme, the central processing unit circuit of circuit breaker and the power supply mode of annex module include through power module power supply and through mutual-inductor power supply two kinds of modes, when the circuit breaker is electrified, if detect that there is outside power module to supply power, then carry out dynamic monitoring to the energy of mutual-inductor, when the energy of mutual-inductor is enough big, close power module's power supply, preferentially use the mutual-inductor to supply power, make full use of mutual-inductor power supply has practiced thrift the electric energy.
In some optional embodiments, the central processor circuit is further configured to:
and after the central processing unit circuit is determined not to be powered by the power supply module, outputting an instruction for adjusting a power supply object of the mutual inductor according to the magnitude of the current value.
Among the above-mentioned technical scheme, the central processing unit circuit of circuit breaker and the power supply mode of accessory module include through power module power supply and through mutual-inductor power supply two kinds of modes, when the circuit breaker has connected outside power module, can be supplied power by power module, under the unable circumstances of supplying power of power module, carry out dynamic monitoring to the energy of mutual-inductor, according to the energy size of mutual-inductor, confirm the power supply object of mutual-inductor, thereby intelligence switches into the power supply of controller and accessory module, for example, the priority guarantees controller normal power supply, or the normal power supply of priority assurance controller and important accessory module.
In some optional embodiments, the central processor circuit is further configured to:
judging whether the current value is larger than a second threshold value; wherein the second threshold is less than or equal to the first threshold;
if yes, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module; if not, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit.
In the technical scheme, when the breaker cannot supply power through an external power module, the energy of the mutual inductor is dynamically monitored, and a power supply object of the mutual inductor is determined according to the energy of the mutual inductor; when the condition that the energy of the mutual inductor can only supply power to the central processing unit circuit is monitored, an instruction for adjusting the mutual inductor to supply power to the central processing unit circuit is output.
In some optional embodiments, the accessory module comprises three modules with power supply priorities, wherein the module with the first power supply priority comprises a temperature sampling module and/or a wireless communication module, the module with the second power supply priority comprises an I/O module, and the module with the third power supply priority comprises a 485 communication module and/or a TCP/IP network module;
the central processor circuit is further configured to:
and if the current value is determined to be larger than the third threshold value and smaller than or equal to the second threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit, the first power supply priority module and the second power supply priority module.
And if the current value is determined to be larger than the fourth threshold value and smaller than or equal to the third threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the first power supply priority module.
If the current value is determined to be larger than the fifth threshold value and smaller than or equal to the fourth threshold value, outputting an instruction for adjusting the mutual inductor into the central processing unit circuit;
wherein the second threshold > the third threshold > the fourth threshold > the fifth threshold.
In the technical scheme, the accessory module comprises a plurality of modules, the plurality of modules are divided into three types according to power supply priority, and when the current value is greater than a fifth threshold value and less than or equal to a fourth threshold value, the energy of the mutual inductor is smaller at the moment and only can supply power for the central processing unit circuit; when the current value is greater than the fourth threshold and less than or equal to the third threshold, the energy of the mutual inductor preferentially supplies power to the central processing unit circuit and the first power supply priority module; when the current value is greater than the third threshold and less than or equal to the second threshold, the energy of the mutual inductor supplies power to the central processing unit circuit, the first power supply priority module and the second power supply priority module; when the current value is greater than the second threshold value, the energy of the transformer is sufficient to power all of the central processor circuit and the accessory module.
In some optional embodiments, the instrument transformer comprises: a transformer power supply coil and a transformer sampling coil;
the transformer power supply coil is connected with a first input end of the power conversion circuit;
the mutual inductor sampling coil is connected with the input end of the current signal acquisition module.
In some optional embodiments, the power module includes an auxiliary power module and a USB module.
Among the above-mentioned technical scheme, the outside power module that is connected with the circuit breaker still includes the USB module except auxiliary power module, has increased the USB power supply mode promptly, consequently, can supply power through USB for the controller through power supply unit such as treasured that charges, like this, just can start the circuit breaker controller under the condition that mutual-inductor power and auxiliary power do not have the electricity.
In some optional embodiments, the auxiliary power module includes a switching power chip, and the external power supply supplies power to the central processing unit circuit or the accessory module after passing through the switching power chip.
In some optional embodiments, the USB module includes a USB interface, and when the USB interface is connected to the power supply device, the USB module supplies power; when the USB interface is connected with the electric equipment, the auxiliary power supply module or the mutual inductor supplies power to the electric equipment.
The circuit breaker provided by the embodiment of the application comprises the power supply control device.
Among the above-mentioned technical scheme, the central processing unit circuit of circuit breaker and the power supply mode of annex module include through power module power supply and through mutual-inductor power supply two kinds of modes, when the circuit breaker is electrified, if detect that there is outside power module to supply power, then carry out dynamic monitoring to the energy of mutual-inductor, when the energy of mutual-inductor is enough big, close power module's power supply, preferentially use the mutual-inductor to supply power, make full use of mutual-inductor power supply has practiced thrift the electric energy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a functional block diagram of a power supply control device of a circuit breaker according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a power supply control device according to an embodiment of the present application;
fig. 3 is a flowchart illustrating steps of a power supply control method for a circuit breaker according to an embodiment of the present disclosure;
FIG. 4 is a flowchart illustrating the steps of a power control method according to another embodiment of the present disclosure;
fig. 5 is a flowchart of method steps for determining a power supply object according to a magnitude of a current value according to the present application.
Icon: the system comprises a transformer 1, a transformer 11, a transformer power supply coil 12, a transformer sampling coil 2, a power supply conversion circuit 3, an accessory module 4, a central processing unit circuit 5, a current signal acquisition module 6 and a power supply module 6.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
One or more embodiments of the present application aim to provide a power supply control device for a circuit breaker, so as to solve the problem that energy is wasted due to the fact that the existing transformer power supply and the auxiliary power supply are performed in parallel.
For convenience of description, a power supply control device of a circuit breaker according to an embodiment of the present application will be described in detail.
Referring to fig. 1, fig. 1 is a functional block diagram of a power supply control device of a circuit breaker according to an embodiment of the present disclosure, where the power supply control device includes a transformer 1, a power conversion circuit 2, a current signal acquisition module 5, a central processing unit circuit 4, and an accessory module 3.
The first output end of the mutual inductor 1 is connected with the first input end of the power conversion circuit 2, the second input end of the power conversion circuit 2 is used for connecting the output end of an external power module 6, the second output end of the mutual inductor 1 is connected to the central processor circuit 4 through the current signal acquisition module 5, the central processor circuit 4 is connected with the power conversion circuit 2, and the power conversion circuit 2 is also connected with the accessory module 3; the power supply conversion circuit 2 is used for receiving an instruction sent by the central processor circuit 4 and disconnecting or closing the connection between the mutual inductor 1 and/or the power supply module 6 and the central processor circuit 4 and/or the accessory module 3 according to the instruction; the current signal acquisition module 5 is used for acquiring a current value representing the energy of the mutual inductor 1;
the central processor circuit 4 is configured to:
judging whether the central processor circuit 4 is powered by the power module 6;
if the central processing unit circuit 4 is powered by the power supply module 6, judging whether the current value is greater than a first threshold value;
if the current value is larger than the first threshold value, outputting an instruction for adjusting the mutual inductor 1 to supply power to the central processor circuit 4 and the accessory module 3;
if the current value is smaller than or equal to the first threshold value, an instruction for adjusting the power supply module 6 and the mutual inductor 1 to supply power to the central processor circuit 4 and the accessory module 3 together is output.
The power supply mode of central processing unit circuit 4 and accessory module 3 of power supply control device of the embodiment of the application includes through power module 6 power supply and through mutual inductor 1 power supply dual mode, when the circuit breaker is electrified, if detect that there is outside power module 6 to supply power, then carry out dynamic monitoring to mutual inductor 1's energy, when mutual inductor 1's energy is enough big, close power module 6's power supply, preferentially use mutual inductor 1 to supply power, make full use of mutual inductor 1 power supply, the electric energy has been practiced thrift.
In some optional embodiments, the central processor circuit 4 is further configured to: after determining that the central processor circuit 4 is not powered by the power module 6, outputting an instruction for adjusting the power supply object of the transformer 1 according to the magnitude of the current value.
The power supply control device of the embodiment of the application has the advantages that the power supply modes of the central processing unit circuit 4 and the accessory module 3 comprise two modes of power supply through the power supply module 6 and power supply through the mutual inductor 1, when the circuit breaker is connected with the external power supply module 6, power can be supplied by the power supply module 6, under the condition that the power supply module 6 cannot supply power, dynamic monitoring is carried out on the energy of the mutual inductor 1, the power supply object of the mutual inductor 1 is determined according to the energy of the mutual inductor 1, so that the intelligent switching is carried out on the power supply of the controller and the accessory module 3, for example, the normal power supply of the controller is guaranteed preferentially, or the normal power supply of the controller and the important accessory module 3 is guaranteed preferentially.
In some optional embodiments, the central processor circuit 4 is further configured to:
judging whether the current value is larger than a second threshold value; wherein the second threshold is less than or equal to the first threshold;
if yes, outputting a command for adjusting the mutual inductor 1 to supply power to the central processing unit circuit 4 and the accessory module 3; if not, outputting an instruction for adjusting the mutual inductor 1 to supply power for the central processing unit circuit 4.
In the embodiment of the application, when the breaker cannot supply power through the external power module 6, the energy of the mutual inductor 1 is dynamically monitored, and a power supply object of the mutual inductor 1 is determined according to the energy of the mutual inductor 1, in the embodiment, when the energy of the mutual inductor 1 is monitored to be enough to supply power to the central processor circuit 4 and the accessory module 3, an instruction for adjusting the mutual inductor 1 to supply power to the central processor circuit 4 and the accessory module 3 is output; when monitoring that the energy of the mutual inductor 1 can only supply power to the central processor circuit 4, outputting an instruction for adjusting the mutual inductor 1 to supply power to the central processor circuit 4.
In some optional embodiments, the accessory module 3 comprises three modules with power supply priorities, wherein the module with the first power supply priority comprises a temperature sampling module and/or a wireless communication module, the module with the second power supply priority comprises an I/O module, and the module with the third power supply priority comprises a 485 communication module and/or a TCP/IP network module;
the central processor circuit 4 is also configured to:
and if the current value is determined to be larger than the third threshold value and smaller than or equal to the second threshold value, outputting a command for adjusting the mutual inductor 1 to supply power to the central processor circuit 4, the module with the first power supply priority and the module with the second power supply priority.
And if the current value is determined to be larger than the fourth threshold value and smaller than or equal to the third threshold value, outputting an instruction for adjusting the mutual inductor 1 to supply power to the central processor circuit 4 and the first power supply priority module.
If the current value is determined to be larger than the fifth threshold value and smaller than or equal to the fourth threshold value, outputting an instruction for adjusting the mutual inductor 1 to be the central processor circuit 4;
wherein the second threshold > the third threshold > the fourth threshold > the fifth threshold.
In the embodiment of the present application, the accessory module 3 includes a plurality of modules, the plurality of modules are classified into three types according to power supply priority, and when the current value is greater than the fifth threshold and less than or equal to the fourth threshold, the energy of the transformer 1 is small at this time, and only power can be supplied to the central processor circuit 4; when the current value is greater than the fourth threshold value and less than or equal to the third threshold value, the energy of the mutual inductor 1 preferentially supplies power to the central processor circuit 4 and the first power supply priority module; when the current value is greater than the third threshold value and less than or equal to the second threshold value, the energy of the mutual inductor 1 supplies power to the central processor circuit 4, the first power supply priority module and the second power supply priority module; when the current value is greater than the second threshold value, the energy of the transformer 1 is sufficient to power all the modules in the central processor circuit 4 and the accessory module 3.
Specifically, referring to fig. 2, fig. 2 is a schematic structural diagram of a power supply control device according to an embodiment of the present disclosure.
Wherein, mutual-inductor 1 includes: a transformer power supply coil 11 and a transformer sampling coil 12; the transformer power supply coil 11 is connected with a first input end of the power conversion circuit 2, and the transformer power supply coil 11 supplies power to the central processor circuit 4 or the accessory module 3 through the power conversion circuit 2; the mutual inductor sampling coil 12 is connected with the input end of the current signal acquisition module 5, and the mutual inductor sampling coil 12 provides a sampling signal for the current signal acquisition module 5, so that the current signal acquisition module 5 can acquire a current value on the mutual inductor 1.
In some alternative embodiments, the power module 6 includes an auxiliary power module and a USB module.
In this application embodiment, the outside power module 6 that is connected with the circuit breaker still includes the USB module except auxiliary power module, has increased the USB power supply mode promptly, consequently, can supply power through USB for the controller through power supply unit such as treasured that charges, like this, just can start the circuit breaker controller under the condition that mutual-inductor 1 power and auxiliary power do not have the electricity.
In some optional embodiments, the auxiliary power module includes a switching power chip, and the external power supplies power the central processing unit circuit 4 or the accessory module 3 after passing through the switching power chip.
In some optional embodiments, the USB module includes a USB interface, and when the USB interface is connected to the power supply device, the USB module supplies power; when the USB interface is connected with the electric equipment, the auxiliary power supply module or the mutual inductor 1 supplies power to the electric equipment.
The circuit breaker provided by the embodiment of the application comprises the power supply control device.
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of a power supply control method for a circuit breaker according to an embodiment of the present application, where the power supply control method is applied to a central processing unit circuit 4, and the power supply control method includes:
step 100, judging whether the central processing unit circuit 4 is powered by the power supply module 6;
if the central processing unit circuit 4 is powered by the power supply module 6, executing the step 200;
step 200, judging whether the current value is larger than a first threshold value;
if the current value is greater than the first threshold, go to step 300; if the current value is less than or equal to the first threshold, go to step 400;
step 300, outputting a command for adjusting the mutual inductor 1 to supply power to the central processing unit circuit 4 and the accessory module 3;
and step 400, outputting an instruction for adjusting the power supply module 6 and the mutual inductor 1 to supply power to the central processor circuit 4 and the accessory module 3 together.
In the embodiment of the application, the power supply mode of the central processing unit circuit 4 and the accessory module 3 of the circuit breaker comprises two modes of supplying power through the power module 6 and supplying power through the mutual inductor 1, when the circuit breaker is powered on, if the power module 6 outside is detected to supply power, then the energy of the mutual inductor 1 is dynamically monitored, when the energy of the mutual inductor 1 is enough large, the power supply of the power module 6 is turned off, the mutual inductor 1 is preferentially used for supplying power, the power supply of the mutual inductor 1 is fully used, and the electric energy is saved.
In some optional embodiments, please refer to fig. 4, where fig. 4 is a flowchart illustrating a power supply control method according to another embodiment of the present application, in this embodiment, after determining whether the central processing unit circuit 4 is powered by the power module 6 in step 100, the method further includes:
if the central processing unit circuit 4 is not powered by the power supply module 6, executing step 500;
and 500, outputting an instruction for adjusting the power supply object of the mutual inductor 1 according to the magnitude of the current value.
In the embodiment of the application, the power supply modes of the central processing unit circuit 4 and the accessory module 3 of the circuit breaker include two modes of supplying power through the power module 6 and supplying power through the mutual inductor 1, when the circuit breaker is connected with the external power module 6, power can be supplied by the power module 6, under the condition that the power module 6 cannot supply power, the energy of the mutual inductor 1 is dynamically monitored, the power supply object of the mutual inductor 1 is determined according to the energy of the mutual inductor 1, thereby the intelligent switching is the power supply of the controller and the accessory module 3, for example, the controller is guaranteed to supply power normally preferentially, or the controller and the important accessory module 3 are guaranteed to supply power preferentially.
Referring to fig. 5, fig. 5 is a flowchart of steps of a method for determining a power supply object according to a magnitude of a current value, that is, in step 500, an instruction for adjusting the power supply object of the transformer 1 is output according to the magnitude of the current value, which specifically includes:
step 510, judging whether the current value is larger than a second threshold value; wherein the second threshold is less than or equal to the first threshold;
if yes, go to step 610;
step 610, outputting a command for adjusting the mutual inductor 1 to supply power to the central processing unit circuit 4 and the accessory module 3; if not, go to step 520.
In this embodiment, when the circuit breaker can't supply power through outside power module 6, carry out dynamic monitoring to the energy of mutual-inductor 1, according to the energy size of mutual-inductor 1, confirm the power supply object of mutual-inductor 1, in this embodiment, when monitoring that the energy of mutual-inductor 1 is enough to supply power for central processing unit circuit 4 and accessory module 3, output adjustment mutual-inductor 1 is the instruction of central processing unit circuit 4 and the power supply of accessory module 3.
In some optional embodiments, the accessory module 3 comprises three modules with power supply priorities, wherein the module with the first power supply priority comprises a temperature sampling module and/or a wireless communication module, the module with the second power supply priority comprises an I/O module, and the module with the third power supply priority comprises a 485 communication module and/or a TCP/IP network module;
then, in 500, outputting an instruction for adjusting a power supply object of the transformer 1 according to the magnitude of the current value specifically includes:
step 520, judging whether the current value is larger than a third threshold value, if so, outputting a power supply instruction for adjusting the mutual inductor 1 to supply power to the central processing unit circuit 4, the first power supply priority module and the second power supply priority module; if not, go to step 530.
Step 530, judging whether the current value is larger than a fourth threshold value, if so, outputting a command for adjusting the mutual inductor 1 to supply power for the central processing unit circuit 4 and the first power supply priority module; if not, go to step 540.
Step 540, judging whether the current value is larger than a fifth threshold value, if so, outputting an instruction for adjusting the mutual inductor 1 to be a central processing unit circuit 4; if not, the mutual inductor 1 cannot supply power for the central processing unit circuit 4;
wherein the second threshold > the third threshold > the fourth threshold > the fifth threshold.
In the embodiment of the present application, the accessory module 3 includes a plurality of modules, the plurality of modules are classified into three types according to power supply priority, and when the current value is greater than the fifth threshold and less than or equal to the fourth threshold, the energy of the transformer 1 is small at this time, and only power can be supplied to the central processor circuit 4; when the current value is greater than the fourth threshold value and less than or equal to the third threshold value, the energy of the mutual inductor 1 preferentially supplies power to the central processor circuit 4 and the first power supply priority module; when the current value is greater than the third threshold value and less than or equal to the second threshold value, the energy of the mutual inductor 1 supplies power to the central processor circuit 4, the first power supply priority module and the second power supply priority module; when the current value is greater than the second threshold value, the energy of the mutual inductor 1 is sufficient to power all the modules in the central processor circuit 4 and the accessory module 3.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A power supply control device of a circuit breaker is characterized by comprising a mutual inductor, a power supply conversion circuit, a current signal acquisition module, a central processing unit circuit and an accessory module;
the first output end of the mutual inductor is connected with the first input end of the power supply conversion circuit,
the second input end of the power supply conversion circuit is used for connecting the output end of an external power supply module,
the second output end of the mutual inductor is connected to the central processing unit circuit through the current signal acquisition module,
the central processing unit circuit is connected with the power supply conversion circuit, and the power supply conversion circuit is also connected with the accessory module;
the power supply conversion circuit is used for receiving an instruction sent by the central processing unit circuit and disconnecting or closing the connection between the mutual inductor and/or the power supply module and the central processing unit circuit and/or the accessory module according to the instruction;
the current signal acquisition module is used for acquiring a current value representing the energy of the mutual inductor;
the central processor circuit is configured to:
judging whether the central processing unit circuit is powered by the power supply module;
if the central processing unit circuit is powered by the power supply module, judging whether the current value is greater than a first threshold value;
if the current value is larger than the first threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module;
and if the current value is smaller than or equal to a first threshold value, outputting an instruction for adjusting the power supply module and the mutual inductor to supply power for the central processing unit circuit and the accessory module together.
2. The apparatus of claim 1, wherein the central processor circuit is further to:
and after the central processing unit circuit is determined not to be powered by the power supply module, outputting an instruction for adjusting a power supply object of the mutual inductor according to the magnitude of the current value.
3. The apparatus of claim 2, wherein the central processor circuit is further to:
judging whether the current value is larger than a second threshold value; wherein the second threshold is less than or equal to the first threshold;
if so, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the accessory module; and if not, outputting an instruction for adjusting the mutual inductor to supply power to the central processing unit circuit.
4. The apparatus of claim 2, wherein the accessory module comprises three power priority modules, wherein a first power priority module comprises a temperature sampling module and/or a wireless communication module, a second power priority module comprises an I/O module, and a third power priority module comprises a 485 communication module and/or a TCP/IP network module;
the central processor circuit is further configured to:
if the current value is determined to be larger than a third threshold value and smaller than or equal to a second threshold value, outputting an instruction for adjusting the mutual inductor to supply power to the central processing unit circuit, the first power supply priority module and the second power supply priority module;
if the current value is determined to be larger than the fourth threshold value and smaller than or equal to the third threshold value, outputting an instruction for adjusting the mutual inductor to supply power for the central processing unit circuit and the first power supply priority module;
if the current value is determined to be larger than the fifth threshold value and smaller than or equal to the fourth threshold value, outputting an instruction for adjusting the mutual inductor to be a central processing unit circuit;
wherein the second threshold > the third threshold > the fourth threshold > the fifth threshold.
5. The apparatus of claim 1, wherein the transformer comprises: a transformer power supply coil and a transformer sampling coil;
the transformer power supply coil is connected with a first input end of the power supply conversion circuit;
the transformer sampling coil is connected with the input end of the current signal acquisition module.
6. The apparatus of claim 1, wherein the power module comprises an auxiliary power module and a USB module.
7. The apparatus of claim 6, wherein the auxiliary power module comprises a switching power chip, and an external power source supplies power to the central processor circuit or the accessory module after passing through the switching power chip.
8. The apparatus of claim 6, wherein the USB module comprises a USB interface, the USB module to supply power when the USB interface is connected to a power supply device; when the USB interface is connected with the electric equipment, the auxiliary power supply module or the mutual inductor supplies power to the electric equipment.
9. A circuit breaker comprising an apparatus according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222412427.5U CN218472774U (en) | 2022-09-09 | 2022-09-09 | Power supply control device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222412427.5U CN218472774U (en) | 2022-09-09 | 2022-09-09 | Power supply control device of circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN218472774U true CN218472774U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222412427.5U Active CN218472774U (en) | 2022-09-09 | 2022-09-09 | Power supply control device of circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN218472774U (en) |
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- 2022-09-09 CN CN202222412427.5U patent/CN218472774U/en active Active
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