CN219370936U - Switching-on and switching-off position sensing synchronous indication circuit of plug-in circuit breaker - Google Patents
Switching-on and switching-off position sensing synchronous indication circuit of plug-in circuit breaker Download PDFInfo
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- CN219370936U CN219370936U CN202320174767.0U CN202320174767U CN219370936U CN 219370936 U CN219370936 U CN 219370936U CN 202320174767 U CN202320174767 U CN 202320174767U CN 219370936 U CN219370936 U CN 219370936U
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Abstract
The utility model provides a switching-on and switching-off position sensing synchronous indication circuit of an insertion type circuit breaker, which comprises a circuit breaker handle sliding block, a micro switch S1, a transistor driving circuit and an indication lamp; the method is characterized in that: the handle sliding block of the sliding breaker is slidably arranged in the breaker and acts along with opening and closing of the breaker; the micro switch S1 corresponds to the position of the handle sliding block of the circuit breaker and can be turned on under the toggle of the handle sliding block of the circuit breaker, and meanwhile, the micro switch S1 can be automatically turned off after the handle sliding block of the circuit breaker is far away; the transistor driving circuit is used for controlling the on-off of the indicator lamp; the indicator lamp is used for indicating the opening and closing state of the circuit breaker. The circuit can realize the detection and indication of the opening and closing state of the plug-in circuit breaker only by simple components, does not influence the performance, has low cost, is much cheaper than the traditional position detection, is very reliable, can effectively control the cost, and improves the reliability.
Description
Technical Field
The utility model belongs to the technical field of intelligent circuit breakers, and particularly relates to a switching-on and switching-off position sensing synchronous indication circuit of an insertion type circuit breaker.
Background
Along with the higher and higher reliability and automation requirements of a power system, no matter generating, transmitting, distributing and using electricity, the requirements of automation and intellectualization in the aspects of monitoring, controlling, protecting and the like are put forward, and a circuit breaker is used as the most important protection control element in the power system, and the automation and the intellectualization of the circuit breaker are the basis of the intellectualization of electrical equipment. And along with the widening of intelligent plug-in circuit breaker application scenes, the cost and miniaturization requirements of the circuit breaker are also higher and higher.
The traditional position detection mode is that MCU senses the opening and closing state of a breaker (magnet of a handle) through a plurality of Hall sensors, then drives an LED indicator lamp to display state information of the breaker at the moment, the position detection mode is high in cost, the consistency of the sensing range of the Hall sensors is poor, the magnet has the problem of weakening magnetism in the using process or in a severe working environment, the risk of the traditional position detection mode is increased, the indicator lamp is driven through an IO port of the MCU in the traditional mode, and the indicator lamp is easy to damage a chip due to static interference because the indicator lamp is close to the positions of a shell and a rivet riveting column.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a switching-on/off position sensing synchronous indication circuit of a plug-in circuit breaker, which has simple structure, low cost and high reliability, and does not affect the performance.
The utility model aims at realizing the following technical scheme:
a switching-on and switching-off position sensing synchronous indication circuit of a plug-in circuit breaker comprises a circuit breaker handle sliding block, a micro switch S1, a transistor driving circuit and an indication lamp; the breaker handle sliding block is arranged in the breaker in a sliding manner and acts along with opening and closing of the breaker, and the breaker handle sliding block is arranged between the tripper and the handle of the breaker and can be linked with the tripper and the handle of the breaker; the micro switch S1 corresponds to the position of the breaker handle sliding block and can be closed when the breaker handle sliding block is poked down (namely, when the breaker handle sliding block is closed, the breaker handle sliding block is close to the micro switch S1 and pokes the micro switch S1 to enable the micro switch S1 to be closed), and meanwhile, the breaker handle sliding block can be automatically opened after the breaker handle sliding block is far away (when the breaker handle sliding block is opened and closed, the breaker handle sliding block is far away from the micro switch S1 to enable the micro switch S1 to be automatically opened); the transistor driving circuit is used for controlling the on-off of the indicator lamp; the indicator lamp is used for indicating the opening and closing state of the circuit breaker.
Further, the indicator lamp comprises a closing indicator lamp R for indicating a closing state and a separating brake indicator lamp G for indicating a separating and closing state.
Further, the switch-on indicator lamp R and the switch-off indicator lamp G are both LED lamps.
Further, the transistor driving circuit comprises a power supply VCC, a power supply ground GND, a micro switch S1, a resistor R2, a resistor R3, a resistor R4 and a transistor Q1; one end of the resistor R1, one end of the resistor R2 and one end of the resistor R3 are respectively connected with the power supply VCC, and one end of the resistor R4 is connected with the base electrode of the transistor Q1; the other end of the resistor R1 is connected with the positive electrode of the closing indicator lamp R; the other end of the resistor R2 is respectively connected with the anode of the switching-off indicator lamp G and the emitter of the transistor Q1; the other end of the resistor R3, the other end of the resistor R4 and the negative electrode of the closing indicator lamp R are connected with one end of the micro switch S1, and meanwhile, the other end of the resistor R3 and the other end of the resistor R4 output a closing and opening signal SI_S1; the collector of the transistor Q1, the negative electrode of the switch-off indicator light G, and the other end of the micro switch S1 are all connected to the power ground GND.
Further, the transistor Q1 is a transistor or other electric signal driving switch capable of achieving similar functions.
Further, a closing indicator light R of the indicator light is a red light, and a switching-off indicator light G of the indicator light LED is a green light.
Further, the micro switch S1 is configured to detect an on/off state of the handle of the circuit breaker, and the red light is on, and the green light is not on, which indicates that the micro switch S1 is completely turned on, and the handle is at a switch-on position; the green light is on, the red light is not on, which indicates that the micro switch S1 is completely disconnected, and the handle is at the opening position.
The circuit can realize the detection and indication of the opening and closing state of the plug-in circuit breaker only by simple components, does not influence the performance, has low cost, is much cheaper than the traditional position detection, is very reliable, can effectively control the cost, and improves the reliability.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a circuit block diagram of a synchronous indication circuit for switching-on and switching-off position sensing of a plug-in circuit breaker according to the utility model;
fig. 2 is a schematic circuit diagram of the synchronous indication circuit for switching on and off position sensing of the plug-in circuit breaker according to the present utility model;
FIG. 3 is a schematic circuit diagram of the circuit breaker handle slider of the present utility model when the micro switch is toggled;
fig. 4 is a schematic diagram of a closing state of the plug-in circuit breaker according to the present utility model;
fig. 5 is a schematic diagram of a breaking state of the plug-in circuit breaker according to the present utility model.
Description of the embodiments
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
The embodiment as shown in fig. 1 shows a synchronous indication circuit for switching-on and switching-off position sensing of a plug-in circuit breaker, which comprises a circuit breaker handle sliding block, a micro switch S1, a transistor driving circuit and an indication lamp; the breaker handle sliding block is arranged in the breaker in a sliding manner and acts along with opening and closing of the breaker, and the breaker handle sliding block is arranged between the tripper and the handle of the breaker and can be linked with the tripper and the handle of the breaker; the micro switch S1 corresponds to the position of the breaker handle sliding block and can be turned on when the breaker handle sliding block is turned off (namely, when the breaker handle sliding block is turned on, the breaker handle sliding block is close to the micro switch S1 and turns on the micro switch S1, and meanwhile, the micro switch S1 can be automatically turned off after the breaker handle sliding block is far away (when the breaker handle sliding block is turned on and off, the breaker handle sliding block is far away from the micro switch S1 and the micro switch S1 is automatically turned off), the micro switch S1 is used for detecting the on and off state of the breaker handle, the red light is on, the green light is not on, and the micro switch S1 is completely turned on, and the handle is at the on position; the green light is on, the red light is not on, the micro switch S1 is completely disconnected, and the handle is positioned at the opening position; the transistor driving circuit is used for controlling the on-off of the indicator lamp; the indicator lamp is used for indicating the opening and closing state of the circuit breaker.
As shown in fig. 4, if the initial state of the circuit breaker is closing, the handle slider of the circuit breaker toggles the micro switch to conduct, after the micro switch is conducted, the transistor is conducted, the indicator lamp is driven to light a red lamp, and a closing signal of the circuit breaker is output.
As shown in fig. 5, if the initial state of the circuit breaker is a breaking state, the handle slider of the circuit breaker is far away from the micro switch, the micro switch and the transistor are not conducted, the red light channel is disconnected, the indicator light lights up a green light, and a breaking signal of the circuit breaker is output, so that the breaking and closing position sensing and the state indication of the plug-in circuit breaker are realized.
As shown in fig. 2 and 3, the indicator light LED includes a closing indicator light R for indicating a closing state and a separating indicator light G for indicating a separating and closing state; the switching-on indicator lamp R is a red lamp, the switching-off indicator lamp G is a green lamp, and both the switching-on indicator lamp and the switching-off indicator lamp are LED lamps. The transistor driving circuit comprises a power supply VCC, a power supply ground GND, a micro switch S1, a resistor R2, a resistor R3, a resistor R4 and a transistor Q1. The resistor R1, the resistor R2, the resistor R3 and the resistor R4 are all used as current limiting resistors.
One end (input end) of the resistor R1 is connected with the power supply VCC, and the other end (output end) of the resistor R1 is connected with the positive pole (number 1 pin) of the red light part (closing indicator light R) of the indicator light LED.
One end (input end) of the resistor R2 is connected with the power supply VCC, and the other end (output end) is respectively connected with the positive electrode (No. 3 pin) of the green light part (switching-off indicator light G) of the indicator light LED and the emitting electrode (No. 2 pin) of the transistor Q1.
One end (input end) of the resistor R3 is connected with the power supply VCC, and the other end (output end) of the resistor R3 is connected with one end (No. 1 pin) of the micro switch S1.
One end (input end) of the resistor R4 is connected with the base electrode (No. 1 pin) of the transistor Q1, and the other end (output end) of the resistor R4 is connected with one end (No. 1 pin) of the micro switch S1.
The other end (output end) of the resistor R3 and the other end (output end) of the resistor R4 output the opening/closing signal si_s1.
And the negative electrode (the No. 2 pin) of the LED red light part (the switch-on indicator light R) of the indicator light is connected with one end (the No. 1 pin) of the micro switch S1.
The collector (pin 3) of the transistor Q1 is connected to the power supply ground GND.
According to the utility model, the handle sliding block of the circuit breaker is used for poking the micro switch S1 to output a circuit breaker switching-on/off signal, so that the switching-on/off state of the transistor Q1 is controlled, and the circuit breaker switching-on/off state is displayed. The position detection and state indication functions of the plug-in circuit breaker are realized through the micro switch and the transistor.
Micro switch S1 conduction condition: the handle sliding block of the circuit breaker toggles the micro switch S1;
as shown in fig. 2, in the open state of the circuit breaker, the micro switch S1 is turned off (the circuit breaker handle slider slides and is far away from the micro switch S1), the No. 1 pin (base) of the transistor Q1 is at a high level, no. 1 pin (base) and No. 2 pin (emitter) of the transistor Q1 have no voltage difference, the transistor Q1 is turned off, current flows through the current limiting resistor R2 and the green light (open-gate indicator G) of the indicator LED, at this time, current cannot flow through the red light (close-gate indicator R), the red light is turned off, the green light is turned on, and the open-gate signal si_s1 is output at a high level (open-gate).
As shown in fig. 3, in the switch-on state of the circuit breaker, the micro switch S1 is turned on (the switch handle slider approaches and toggles the micro switch S1), the pin 1 (base) of the transistor Q1 is at a low level, the voltage of the pin 1 (base) of the transistor Q1 is lower than the voltage of the pin 2 (emitter) of the transistor Q1, the transistor Q1 is turned on, current sequentially flows through the current limiting resistor R1, the red light (switch-on indicator R) of the indicator LED and the micro switch S1, at this time, the current cannot flow through the green light (switch-off indicator G) of the indicator LED, the green light is turned off, the red light is turned on, and the switch-off signal is output at a low level (switch-on).
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, and any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical substance of the present utility model falls within the protection scope of the present utility model.
Claims (7)
1. A switching-on and switching-off position sensing synchronous indication circuit of a plug-in circuit breaker comprises a circuit breaker handle sliding block, a micro switch S1, a transistor driving circuit and an indication lamp; the method is characterized in that:
the handle sliding block of the circuit breaker is slidably arranged in the circuit breaker and acts along with opening and closing of the circuit breaker; the micro switch S1 corresponds to the position of the handle sliding block of the circuit breaker and can be turned on under the toggle of the handle sliding block of the circuit breaker, and meanwhile, the micro switch S1 can be automatically turned off after the handle sliding block of the circuit breaker is far away; the transistor driving circuit is used for controlling the on-off of the indicator lamp; the indicator lamp is used for indicating the opening and closing state of the circuit breaker.
2. The circuit of claim 1, wherein the circuit is further configured to: the indicating lamp comprises a closing indicating lamp R for indicating a closing state and a separating indicating lamp G for indicating a separating and closing state.
3. The circuit of claim 2, wherein the circuit is further configured to: and the closing indicator lamp R and the opening indicator lamp G are both LED lamps.
4. The circuit of claim 3, wherein the transistor driving circuit comprises a power source VCC, a power source ground GND, a micro switch S1, a resistor R2, a resistor R3, a resistor R4, and a transistor Q1, and is characterized in that:
one end of the resistor R1, one end of the resistor R2 and one end of the resistor R3 are respectively connected with the power supply VCC, and one end of the resistor R4 is connected with the base electrode of the transistor Q1;
the other end of the resistor R1 is connected with the positive electrode of the closing indicator lamp R; the other end of the resistor R2 is respectively connected with the anode of the switching-off indicator lamp G and the emitter of the transistor Q1; the other end of the resistor R3, the other end of the resistor R4 and the negative electrode of the closing indicator lamp R are connected with one end of the micro switch S1, and meanwhile, the other end of the resistor R3 and the other end of the resistor R4 output a closing and opening signal SI_S1;
the collector of the transistor Q1, the negative electrode of the switch-off indicator light G, and the other end of the micro switch S1 are all connected to the power ground GND.
5. The circuit of claim 4, wherein the circuit is further configured to: the transistor Q1 is a triode.
6. The circuit of claim 4, wherein the circuit is further configured to: the switch-on indicator light R is a red light, and the switch-off indicator light G is a green light.
7. The switching-on/off position sensing synchronization indication circuit according to any one of claims 1 to 6, wherein: the micro switch S1 is used for detecting the opening and closing state of the breaker handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320174767.0U CN219370936U (en) | 2023-02-10 | 2023-02-10 | Switching-on and switching-off position sensing synchronous indication circuit of plug-in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320174767.0U CN219370936U (en) | 2023-02-10 | 2023-02-10 | Switching-on and switching-off position sensing synchronous indication circuit of plug-in circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219370936U true CN219370936U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320174767.0U Active CN219370936U (en) | 2023-02-10 | 2023-02-10 | Switching-on and switching-off position sensing synchronous indication circuit of plug-in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370936U (en) |
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2023
- 2023-02-10 CN CN202320174767.0U patent/CN219370936U/en active Active
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