CN114038715A - Breaker with automatic brake closing force calibration function - Google Patents
Breaker with automatic brake closing force calibration function Download PDFInfo
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- CN114038715A CN114038715A CN202111089169.5A CN202111089169A CN114038715A CN 114038715 A CN114038715 A CN 114038715A CN 202111089169 A CN202111089169 A CN 202111089169A CN 114038715 A CN114038715 A CN 114038715A
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- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 10
- 230000005669 field effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000418 atomic force spectrum Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention provides a circuit breaker with automatically calibrated switching-on force, which comprises a processor, a switching-off driver, a switching-off actuator, a switching-on driver, a switching-on actuator, a zero-crossing detection circuit, a tripper and a voltage acquisition circuit, wherein the switching-off driver is respectively connected with the processor and the switching-off actuator, the switching-on driver is respectively connected with the switching-on actuator and the processor, the zero-crossing detection circuit, the voltage acquisition circuit and the tripper are respectively connected with the processor, the switching-off actuator and the switching-on actuator are connected with a zero line of alternating current power supply voltage, and the switching-off driver and the switching-on driver are connected with a live line of the alternating current power supply voltage. The invention solves the technical problems of short service life and low reliability of automatic opening and closing in the prior art.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a circuit breaker with automatically calibrated closing force.
Background
The intelligent circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a shell and the like, and has the functions of cutting off and switching on a load circuit and cutting off a fault circuit, so that the accident expansion is prevented, and the safe operation is ensured.
In the prior art, an operating mechanism uses an electromagnetic drive circuit breaker to automatically switch on and off, the influence of voltage on the circuit breaker is huge, the impact force is large when the voltage is high, and the influence on the service life and the success rate of the circuit breaker is huge; when the voltage is low, the switching-on force is insufficient, so that the switching-on failure is caused. Therefore, how to effectively improve the service life and the automatic opening and closing reliability is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of this, the invention provides a circuit breaker with automatically calibrated switching-on and switching-off force, and aims to solve the technical problems of short service life and low reliability of automatic switching-on and switching-off in the prior art.
The invention adopts the following technical scheme:
a circuit breaker with automatically calibrated switching-on force comprises a processor, a switching-off driver, a switching-off actuator, a switching-on driver, a switching-on actuator, a zero-crossing detection circuit, a tripper and a voltage acquisition circuit, wherein the switching-off driver is respectively connected with the processor and the switching-off actuator, the switching-on driver is respectively connected with the switching-on actuator and the processor, the zero-crossing detection circuit, the voltage acquisition circuit and the tripper are respectively connected with the processor, the switching-off actuator and the switching-on actuator are connected with a zero line of alternating current supply voltage, and the switching-off driver and the switching-on driver are connected with a live line of the alternating current supply voltage; the tripper comprises a tripping driver and a tripping actuator, the tripping driver is respectively connected with the processor, a zero line of alternating current power supply voltage and the tripping actuator, and the tripping actuator is connected with the zero line of the alternating current power supply voltage; the processor adopts a HT5017 chip; the closing driving circuit comprises two MSB40D chips connected in parallel.
Preferably, the voltage acquisition circuit comprises a resistor R76-a resistor R82, a resistor R84, a capacitor C48 and a capacitor C45, wherein the resistor R76-a resistor R82 are connected in series, the resistor R76 is connected with a pin 4 of the connector, and a pin 1 of the connector is grounded; the resistor R82 is connected with the capacitor C45 in parallel and then grounded, the resistor R82 is connected with the resistor R84 in series, the capacitor C45 is connected with the capacitor C48 in series, and the resistor R84 is connected with the capacitor C48 in parallel and then grounded.
Preferably, the opening driver comprises an optical coupler, a resistor R57, a resistor R60, a resistor R95 and a field-effect transistor Q6, one end of the resistor R57 is connected with the processor, the other end of the resistor R57 is connected with the optical coupler, the optical coupler is respectively connected with a resistor R97, a 12V voltage, a resistor R60 and the ground, the other end of the resistor R60 is respectively connected with the resistor R95 and the field-effect transistor Q6, the other end of the resistor R95 is grounded, and the field-effect transistor Q6 is grounded.
Preferably, the optical coupler is a TLP152 chip.
Preferably, the field effect transistor Q6 adopts a TK8P65W chip. .
The invention has the beneficial effects that:
the utility model provides a closing force autocollimation's circuit breaker, through the principle that adopts real-time voltage amplitude and angle detection, through real-time alternating voltage value detection, zero passage detection circuit and branch/combined floodgate drive circuit board's discernment, let the circuit breaker as the benchmark at the zero crossing point that detects, combine real-time alternating voltage amplitude value to judge the sinusoidal wave curve section of the required alternating voltage electric current of combined floodgate, realize that combined floodgate force curve and sinusoidal wave curve height are closed, reached autocollimation's function. The circuit breaker has the effects of long service life, stability, reliability and high efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a block diagram of a circuit breaker with an automatic calibration of a switching force according to the present invention.
Fig. 2 is a schematic diagram of a driving circuit of a closing driver of a circuit breaker with an automatic calibration of a closing force according to the present invention.
Fig. 3 is a schematic diagram of a voltage sampling circuit of a circuit breaker with automatic calibration of closing force according to the present invention.
Fig. 4 is a schematic diagram of a driving circuit of an opening/closing driver of a circuit breaker with an automatic calibration of the closing force according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present invention.
As shown in fig. 1, the invention includes a processor, an opening actuator, a closing actuator, a zero-crossing detection circuit, a release and a voltage acquisition circuit, wherein the opening actuator is respectively connected to the processor and the opening actuator, the closing actuator is respectively connected to the closing actuator and the processor, the zero-crossing detection circuit, the voltage acquisition circuit and the release are all connected to the processor, the opening actuator and the closing actuator are connected to a zero line of an ac power supply voltage, and the opening actuator and the closing actuator are connected to a live line of the ac power supply voltage. The tripper comprises a tripping driver and a tripping actuator, the tripping driver is respectively connected with the processor, the zero line of the alternating current power supply voltage and the tripping actuator, and the tripping actuator is connected with the zero line of the alternating current power supply voltage.
In this embodiment, the HT5017 chip is used as the processor, and the HT5017 chip is an SOC chip with an electrical measurement + MCU, and has the capabilities of zero-cross monitoring and the processor inside.
As shown in fig. 2, the closing driving circuit includes two MSB40D chips connected in parallel while providing a pad supporting a L, N lead.
As shown in fig. 3, the voltage acquisition circuit includes a resistor R76-a resistor R82, a resistor R84, a capacitor C48 and a capacitor C45, the resistor R76-a resistor R82 are connected in series, the resistor R76 is connected to the PIN 4 of the connector, ZH1.5-4 is a 4PIN female socket, but is provided with a support lead for welding an L-pole input and an N-pole input. Pin 1 of the connector is grounded; the resistor R82 is connected with the capacitor C45 in parallel and then grounded, the resistor R82 is connected with the resistor R84 in series, the capacitor C45 is connected with the capacitor C48 in series, and the resistor R84 is connected with the capacitor C48 in parallel and then grounded.
As shown in fig. 4, the opening driver includes an optical coupler, a resistor R57, a resistor R60, a resistor R95 and a fet Q6, one end of the resistor R57 is connected to the processor, the other end of the resistor R57 is connected to the optical coupler, the optical coupler is respectively connected to the voltage of the resistors R97 and 12V, the resistor R60 and the ground, the other end of the resistor R60 is respectively connected to the resistor R95 and the fet Q6, the other end of the resistor R95 is grounded, the fet Q6 is respectively grounded, and the fet Q6 is TKQN 3. The optocoupler uses a TLP152 chip, and the effector Q6 uses a TK8P65W chip.
The invention comprises a processor, an opening driver, an opening actuator, a closing driver, a closing actuator, a zero-crossing detection circuit, a release and a voltage acquisition circuit, and realizes the effects of long service life, stability, reliability and high efficiency of the switch by connecting and linking the components.
The opening driver and the closing driver are provided with mother grooves for connecting the closing actuator and the opening actuator. The zero-cross detection circuit, the opening driver and the closing driver take electricity from the main loop. And the zero-crossing detection circuit, the opening driver and the closing driver trigger an opening and closing signal from the outside. The voltage of the voltage acquisition circuit comes from a main circuit of the circuit breaker.
The invention adopts the principle of real-time voltage amplitude and angle detection, and the circuit breaker is used as a reference point at the detected zero crossing point through the identification of the voltage acquisition circuit, the zero-crossing detection circuit and the switching-on and switching-off drivers, and the sine wave curve segment of the alternating voltage and current required by switching-on is judged by combining the real-time alternating voltage amplitude. The sine wave curve segment is intercepted by the zero-crossing detection circuit, the opening driver and the closing driver through the delay time and the driving time after the datum point is set, the closing force curve is highly matched with the sine wave curve, and the automatic calibration function is achieved.
According to the invention, when the closing force curves of the closing actuator and the opening actuator are changed due to manufacturing tolerance, the program can automatically calibrate after recording data through closing and opening aging. The invention also supports the use of software to manually set and realize calibration.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a circuit breaker of closing power automatic calibration which characterized in that: the system comprises a processor, an opening driver, an opening actuator, a closing driver, a closing actuator, a zero-crossing detection circuit, a release and a voltage acquisition circuit, wherein the opening driver is respectively connected with the processor and the opening actuator; the tripper comprises a tripping driver and a tripping actuator, the tripping driver is respectively connected with the processor, a zero line of alternating current power supply voltage and the tripping actuator, and the tripping actuator is connected with the zero line of the alternating current power supply voltage; the processor adopts a HT5017 chip; the closing driving circuit comprises two MSB40D chips connected in parallel.
2. The circuit breaker with automatically calibrated closing force according to claim 1, characterized in that: the voltage acquisition circuit comprises a resistor R76-a resistor R82, a resistor R84, a capacitor C48 and a capacitor C45, wherein the resistor R76-the resistor R82 are connected in series, the resistor R76 is connected with a pin 4 of a connector, and a pin 1 of the connector is grounded; the resistor R82 is connected with the capacitor C45 in parallel and then grounded, the resistor R82 is connected with the resistor R84 in series, the capacitor C45 is connected with the capacitor C48 in series, and the resistor R84 is connected with the capacitor C48 in parallel and then grounded.
3. The circuit breaker with automatically calibrated closing force according to claim 1, characterized in that: the separating brake driver comprises an optical coupler, a resistor R57, a resistor R60, a resistor R95 and a field-effect tube Q6, one end of the resistor R57 is connected with the processor, the other end of the resistor R57 is connected with the optical coupler, the optical coupler is respectively connected with resistors R97, 12V voltage, a resistor R60 and grounding, the other end of the resistor R60 is respectively connected with the resistor R95 and the field-effect tube Q6, the other end of the resistor R95 is grounded, and the field-effect tube Q6 is grounded.
4. The circuit breaker with automatically calibrated closing force according to claim 3, characterized in that: the optocoupler uses a TLP152 chip.
5. The circuit breaker with automatically calibrated closing force according to claim 3, characterized in that: the field effect transistor Q6 adopts a TK8P65W chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111089169.5A CN114038715A (en) | 2021-09-16 | 2021-09-16 | Breaker with automatic brake closing force calibration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111089169.5A CN114038715A (en) | 2021-09-16 | 2021-09-16 | Breaker with automatic brake closing force calibration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114038715A true CN114038715A (en) | 2022-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111089169.5A Pending CN114038715A (en) | 2021-09-16 | 2021-09-16 | Breaker with automatic brake closing force calibration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114038715A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006012626A (en) * | 2004-06-25 | 2006-01-12 | Matsushita Electric Works Ltd | Switching device |
| CN2800620Y (en) * | 2005-03-16 | 2006-07-26 | 张文会 | Intelligent zero-cross opening or closing gate breaker |
| CN101246785A (en) * | 2008-03-21 | 2008-08-20 | 鞍山华夏电力电子设备有限公司 | Breaker synchronous controller and control method thereof |
| CN101534020A (en) * | 2009-04-10 | 2009-09-16 | 沈阳工业大学 | Device and method for controlling motor operating mechanism of circuit breaker |
| US20150171614A1 (en) * | 2013-12-16 | 2015-06-18 | Eaton Corporation | Shunt trip control circuits using shunt trip signal accumulator and methods of operating the same |
| WO2017049907A1 (en) * | 2015-09-22 | 2017-03-30 | 郑贵林 | Dynamic power switch action time measurement and precise alternating-current zero crossing point control method and application |
| CN206116325U (en) * | 2016-06-30 | 2017-04-19 | 西门子公司 | Automatic heavy switching -on device's contact protection device |
| CN111952126A (en) * | 2020-06-29 | 2020-11-17 | 深圳微羽智能科技有限公司 | Electromagnetic closing driving mechanism |
| CN111969566A (en) * | 2019-05-20 | 2020-11-20 | 陈锡瑜 | Improved capacitor tripping device for high-voltage AC system |
| CN216671529U (en) * | 2021-09-16 | 2022-06-03 | 深圳微羽智能科技有限公司 | Breaker with automatic brake closing force calibration function |
-
2021
- 2021-09-16 CN CN202111089169.5A patent/CN114038715A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006012626A (en) * | 2004-06-25 | 2006-01-12 | Matsushita Electric Works Ltd | Switching device |
| CN2800620Y (en) * | 2005-03-16 | 2006-07-26 | 张文会 | Intelligent zero-cross opening or closing gate breaker |
| CN101246785A (en) * | 2008-03-21 | 2008-08-20 | 鞍山华夏电力电子设备有限公司 | Breaker synchronous controller and control method thereof |
| CN101534020A (en) * | 2009-04-10 | 2009-09-16 | 沈阳工业大学 | Device and method for controlling motor operating mechanism of circuit breaker |
| US20150171614A1 (en) * | 2013-12-16 | 2015-06-18 | Eaton Corporation | Shunt trip control circuits using shunt trip signal accumulator and methods of operating the same |
| WO2017049907A1 (en) * | 2015-09-22 | 2017-03-30 | 郑贵林 | Dynamic power switch action time measurement and precise alternating-current zero crossing point control method and application |
| CN206116325U (en) * | 2016-06-30 | 2017-04-19 | 西门子公司 | Automatic heavy switching -on device's contact protection device |
| CN111969566A (en) * | 2019-05-20 | 2020-11-20 | 陈锡瑜 | Improved capacitor tripping device for high-voltage AC system |
| CN111952126A (en) * | 2020-06-29 | 2020-11-17 | 深圳微羽智能科技有限公司 | Electromagnetic closing driving mechanism |
| CN216671529U (en) * | 2021-09-16 | 2022-06-03 | 深圳微羽智能科技有限公司 | Breaker with automatic brake closing force calibration function |
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