CN216356107U - Intelligent circuit breaker control circuit with energy storage function - Google Patents
Intelligent circuit breaker control circuit with energy storage function Download PDFInfo
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- CN216356107U CN216356107U CN202122123364.7U CN202122123364U CN216356107U CN 216356107 U CN216356107 U CN 216356107U CN 202122123364 U CN202122123364 U CN 202122123364U CN 216356107 U CN216356107 U CN 216356107U
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Abstract
The utility model relates to an intelligent circuit breaker control circuit with an energy storage function, which is characterized by comprising a power supply module and an energy storage module, wherein when a circuit breaker is electrified, the power supply module charges the energy storage module; after the circuit breaker is powered off, the energy storage module discharges to maintain the voltage required by the power supply module. According to the utility model, after the circuit breaker is powered off, the power supply of the singlechip and the motor can be realized through the energy storage circuit, and enough energy is provided to ensure that the circuit breaker is reliably opened, so that the circuit breaker is always in an opening reset position before being powered on, the requirement that the distance between a moving contact and a static contact is more than 2mm is met, and the national standard is reliably executed.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an intelligent circuit breaker control circuit with an energy storage function.
Background
The circuit breaker with automatic reclosing function is used for indirect contact protection of people, can also be used for preventing fire hazard caused by ground fault current generated due to equipment insulation damage, can be used for distributing electric energy and protecting overload and short circuit of circuits and power supply equipment, and can also be used for infrequent switching of the circuits and infrequent starting of the motor.
However, with the support of the country on the internet of things, more and more intelligent circuit breakers appear in the market, but the intelligent control on the reclosure circuit breaker is relatively lacked at present. After the breaker is powered off, the power supply module is not powered on, and at the moment, when the opening is needed, the opening cannot be carried out.
Disclosure of Invention
The utility model aims to provide an intelligent circuit breaker control circuit with an energy storage function, which is used for intelligently controlling a reclosure circuit breaker.
In order to achieve the purpose, the utility model adopts the following technical scheme that the intelligent circuit breaker control circuit with the energy storage function is characterized by comprising a power supply module and an energy storage module, wherein when the circuit breaker is electrified, the power supply module charges the energy storage module; after the circuit breaker is powered off, the energy storage module discharges to maintain the voltage required by the power supply module.
The utility model further provides that the power supply module is also connected with a single chip microcomputer and a motor driving module, the power supply module supplies power for the single chip microcomputer and the motor driving module, the single chip microcomputer is also connected with a voltage monitoring module, the voltage of the power supply module after primary voltage reduction is transmitted to the motor driving module, meanwhile, the power supply module charges the energy storage module until the voltage is consistent with the rated working voltage of the motor driving module, and the power supply module transmits the voltage to the single chip microcomputer after secondary voltage reduction.
The utility model further provides that an energy storage circuit is formed between the power supply module and the energy storage module, the energy storage circuit comprises an input voltage end, an output voltage end and a voltage reduction circuit, the voltage reduction circuit is arranged between the input voltage and the output voltage, the output voltage end is respectively connected with the single chip microcomputer, the motor driving module and the energy storage module, the energy storage circuit further comprises a plurality of energy storage elements which are connected in series, and the energy storage elements are connected with the output voltage end after being connected in series.
The utility model is further provided with a voltage stabilizing circuit arranged between the energy storage element and the output voltage.
The utility model has the beneficial effects that: the circuit breaker can realize that singlechip, motor supply power through tank circuit after the outage to provide sufficient energy and make the reliable separating brake of circuit breaker, make the circuit breaker be in the separating brake reset position before the electricity is gone up all the time, guarantee to satisfy the requirement that the sound contact interval is greater than 2mm, reliably execute national standard.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a functional block diagram of a tank circuit according to an embodiment of the present invention;
FIG. 2 is a first schematic circuit diagram of an energy storage charging method according to an embodiment of the present invention;
FIG. 3 is a V/t diagram of a first schematic circuit diagram of an energy storage charging method according to an embodiment of the present invention;
FIG. 4 is a second schematic circuit diagram of an energy storage charging method according to an embodiment of the utility model;
FIG. 5 is a V/t diagram of a second schematic circuit diagram of an energy storage charging method according to an embodiment of the present invention;
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
As shown in fig. 1-5, an intelligent circuit breaker control circuit with an energy storage function includes a power module and an energy storage module, wherein when the circuit breaker is powered on, the power module charges the energy storage module; after the circuit breaker is powered off, the energy storage module discharges to maintain the voltage required by the power module, the power module is also connected with a single chip microcomputer and a motor driving module, the power module supplies power to the single chip microcomputer and the motor driving module, the single chip microcomputer is also connected with a voltage monitoring module, the power module transmits the voltage after primary voltage reduction to the motor driving module, meanwhile, the power module charges the energy storage module until the voltage is consistent with the rated working voltage of the motor driving module, the power module transmits the voltage to the single chip microcomputer after secondary voltage reduction, an energy storage circuit is formed between the power module and the energy storage module and comprises an input voltage end, an output voltage end and a voltage reduction circuit, the voltage reduction circuit is arranged between the input voltage and the output voltage, and the output voltage end is respectively connected with the single chip microcomputer, the motor driving module and the energy storage module, the energy storage circuit further comprises a plurality of energy storage elements which are connected in series, the energy storage elements are connected with the output voltage end after being connected in series, and a voltage stabilizing circuit is further arranged between the energy storage elements and the output voltage.
The circuit breaker can realize the power supply of the singlechip and the motor through the energy storage circuit after power failure, and provide enough energy to ensure that the circuit breaker is reliably opened, so that the circuit breaker is always positioned at an opening reset position before power on, the requirement that the distance between a moving contact and a static contact is more than 2mm is met, and the national standard is reliably executed.
Based on the above technical solutions, the present invention provides two energy storage charging methods, wherein the first scheme is shown in fig. 2, and the first scheme has the characteristic of first-speed and last-slow in the energy charging mode, and has a certain requirement on the type selection of the current-limiting resistor, and a faster voltage saturation response rate is required. The V/t characteristic diagram during charging is shown in FIG. 3;
another scheme is shown in fig. 4, a second scheme is a constant current charging mode, and charging current is controlled through a TL431, that is, a voltage stabilizing function is performed, so that the saturation time of the energy storage voltage is controlled, and the protection of the energy storage module device is provided, and a charging V/t characteristic diagram of the second scheme is shown in fig. 5;
after the two switches are powered on, a power supply is input through a front end AC-DC and then is reduced to a rated working voltage VCC 9-12 of the motor through U11, the power supply charges energy storage modules C91, C92, C93 and C94, the number of capacitor combinations is not fixed, the configuration needs to meet the requirement that the withstand voltage after series connection is larger than the value of VCC 9-12, and the comprehensive capacity can meet the requirement of executing standard regulated actions of the switches after power failure. VCC 9-12 is reduced to MCU working voltage in parallel, and the MCU detects the working state of the switch and the external environment after self-resetting; the MCU detects the stroke position of the switch in the switch closing process, the verification is finished when the national standard requires 80% of limit distance closing stroke during power failure, after the power failure, the U11 stops working, VCC 9-12 starts to descend, when the energy storage voltage is higher than VCC 9-12 voltage, the energy storage module starts to discharge to maintain VCC 9-12 potential, the MCU is guaranteed to normally control the motor driving chip to work and simultaneously provide energy to complete the reversing action of the motor, the motor is reset until the switch is opened, the control circuit slowly powers down, and the verification process is finished.
Certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (4)
1. The intelligent circuit breaker control circuit with the energy storage function is characterized by comprising a power supply module and an energy storage module, wherein when the circuit breaker is electrified, the power supply module charges the energy storage module; after the circuit breaker is powered off, the energy storage module discharges to maintain the voltage required by the power supply module.
2. The intelligent circuit breaker control circuit with the energy storage function according to claim 1, wherein the power module is further connected with a single chip microcomputer and a motor driving module, the power module supplies power to the single chip microcomputer and the motor driving module, the single chip microcomputer is further connected with a voltage monitoring module, the voltage of the power module after being subjected to primary voltage reduction is transmitted to the motor driving module, meanwhile, the power module charges the energy storage module until the voltage is consistent with the rated working voltage of the motor driving module, and the voltage is transmitted to the single chip microcomputer after being subjected to secondary voltage reduction.
3. The intelligent circuit breaker control circuit with the energy storage function according to claim 2, wherein an energy storage circuit is formed between the power module and the energy storage module, the energy storage circuit comprises an input voltage end, an output voltage end and a voltage reduction circuit, the voltage reduction circuit is arranged between the input voltage and the output voltage, the output voltage end is respectively connected with the single chip microcomputer, the motor driving module and the energy storage module, the energy storage circuit further comprises a plurality of energy storage elements which are connected in series, and the energy storage elements are connected with the output voltage end after being connected in series.
4. The intelligent circuit breaker control circuit with energy storage function as claimed in claim 3, wherein a voltage stabilizing circuit is further disposed between the energy storage element and the output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123364.7U CN216356107U (en) | 2021-09-03 | 2021-09-03 | Intelligent circuit breaker control circuit with energy storage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123364.7U CN216356107U (en) | 2021-09-03 | 2021-09-03 | Intelligent circuit breaker control circuit with energy storage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216356107U true CN216356107U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122123364.7U Active CN216356107U (en) | 2021-09-03 | 2021-09-03 | Intelligent circuit breaker control circuit with energy storage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216356107U (en) |
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2021
- 2021-09-03 CN CN202122123364.7U patent/CN216356107U/en active Active
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