CN217983228U - Intelligent circuit breaker with short circuit alarm function - Google Patents
Intelligent circuit breaker with short circuit alarm function Download PDFInfo
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- CN217983228U CN217983228U CN202221593022.XU CN202221593022U CN217983228U CN 217983228 U CN217983228 U CN 217983228U CN 202221593022 U CN202221593022 U CN 202221593022U CN 217983228 U CN217983228 U CN 217983228U
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Abstract
The utility model discloses an intelligent circuit breaker with short circuit alarming function, it includes the casing, be equipped with at least one release and short circuit detection circuit board in the casing, the front end of the action direction of the iron core that moves of each release all is equipped with two metalworks, just the metalwork is connected with short circuit detection circuit board electricity respectively, it can drive one of them metalwork and another metalwork contact or disconnection when producing short circuit current to move the iron core, the contact or the disconnection of metalwork are used for short circuit warning. When the tripper acts because of the short circuit, the tripper can drive two metal sheets which are correspondingly arranged to contact or break off, and then the short circuit alarm function is realized by utilizing the on-off of the metal sheets, so that the maintenance and the positioning of the line problem are facilitated.
Description
Technical Field
The utility model particularly relates to an intelligent circuit breaker with short circuit alarming function.
Background
The circuit breaker is a terminal protection electric appliance which is most widely used in a building electric terminal power distribution device. The protection device is installed on a terminal distribution line and is mainly used for overload and short-circuit protection of the line and electrical equipment. When the electric circuit breaks down, the circuit breaker can automatically cut off (trip) the circuit, so that the safety of workers and the normal operation of equipment are prevented from being endangered due to the circuit failure.
When the circuit breaker appears tripping operation outage on the circuit, the true reason of outage can't be discerned: the condition of manual brake-separating power-off, line overload, line leakage and line short-circuit cannot be used for carrying out advanced prejudgment on the on-site line failure condition and preparing a solution in advance for maintenance personnel.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an intelligent circuit breaker with short circuit alarming function.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an intelligent circuit breaker with short circuit alarming function, its includes the casing, be equipped with at least one release and short circuit detection circuit board in the casing, the front end of the iron core's that moves of each release action direction all is equipped with two metalworks, just the metalwork is connected with short circuit detection circuit board electricity respectively, move the iron core and can drive one of them metalwork and another metalwork contact or disconnection when producing short circuit current, the contact or the disconnection of metalwork are used for short circuit alarming.
The two metal pieces are L-shaped and are arranged oppositely, the two metal pieces are arranged in a partially overlapped mode, and the overlapped parts of the two metal pieces can be driven by the movable iron core to be in contact or disconnected.
The shell is provided with two bayonets, the metal piece is embedded in the bayonets respectively, one end of the metal piece is located in the action direction of the movable iron core, and the other end of the metal piece is electrically connected with the short circuit detection circuit board.
If the tripper is a plurality of trippers, each group of metal pieces are connected in series and electrically connected with the detection end of the short circuit detection circuit board.
If the number of the trippers is multiple, the metal pieces in each group are connected in parallel, and the metal pieces after being connected in parallel are electrically connected with the detection end of the short circuit detection circuit board.
If the release is a plurality of, then each group of metal pieces is respectively and electrically connected with one detection end of the short circuit detection circuit board.
The metal pieces in each group are in a normally open state or a normally closed state.
The utility model has the advantages that: when the tripper acts because of the short circuit, the tripper can drive two metal sheets which are correspondingly arranged to contact or break off, and then the short circuit alarm function is realized by utilizing the on-off of the metal sheets, so that the maintenance and the positioning of the line problem are facilitated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic circuit diagram according to embodiment 2 of the present invention.
Fig. 4 is a schematic circuit diagram of embodiment 3 of the present invention.
Fig. 5 is a schematic circuit diagram according to embodiment 4 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
As shown in the figure, the utility model discloses an intelligent circuit breaker with short circuit alarming function, it includes the casing, be equipped with at least one release and short circuit detection circuit board in the casing, the front end that moves the action direction of iron core of each release all is equipped with two metalworks, just the metalwork is connected with short circuit detection circuit board electricity respectively, it can drive one of them metalwork and another metalwork contact or disconnection when producing short-circuit current to move the iron core, the contact or the disconnection of metalwork are used for short-circuit alarm.
One of the two metal pieces is set to be fixed, the other metal piece is in linkage fit with a movable iron core of the release, the two metal pieces can be in a normally open state or a normally closed state, state switching between the two metal pieces is achieved through the movable iron core, further, the short circuit detection circuit board can learn the short circuit state from the states of the two metal pieces, data transmission with a remote service end or a mobile terminal is achieved through a communication module such as a wireless communication module or a wired communication module, and the short circuit alarming function is achieved.
The two metal pieces are L-shaped and are arranged oppositely, the two metal pieces are arranged in a partially overlapped mode, the overlapped parts of the two metal pieces can be driven by the movable iron core to be in contact or disconnected, namely, the overlapped parts of the two metal pieces can be arranged in a contact mode or can be arranged in a separated mode, if the two metal pieces are arranged in a contact mode, the movable iron core is utilized to pull one of the metal pieces, the two metal pieces are separated, and when the two metal pieces are arranged in a separated mode, the movable iron core is utilized to push one of the metal pieces, and the two metal pieces are in contact.
When the initial state of the two metal pieces is closed contact.
In the initial state, under the action of the movable iron core, the first metal piece and the second metal piece are in a closed contact state. When short-circuit current occurs in the circuit, the movable iron core is displaced under the action of a magnetic field, so that the state of the two metal pieces is changed from closed to open;
the other ends of the two metal pieces are connected to the short circuit detection circuit board and form an electric loop with the power supply ends of the two metal pieces;
the main control board short circuit detection circuit board is provided with a monitoring module, and when the states of the first metal piece and the second metal piece are switched from closed to open, the monitoring module sends a short circuit alarm instruction.
When the movable iron core and the ejector rod are assembled together, the alarm function can be realized through the ejector rod, namely the ejector rod is used for realizing the action of the movable iron core.
The shell is provided with two bayonets, the metal piece is embedded in the bayonets respectively, one end of the metal piece is located in the action direction of the movable iron core, and the other end of the metal piece is electrically connected with the short circuit detection circuit board. The metal piece is fixed by the bayonet, so that the displacement of the metal piece is avoided, the metal piece and the bayonet can be limited, and the metal piece and the bayonet are prevented from contacting at non-overlapping positions.
Working principle of example 1
Taking a 4P air-break circuit breaker as an example, 2 metal pieces are placed in each phase of N, A, B and C, and the iron core is moved under the action of spring force to enable the 2 metal pieces to be in a closed state. 2 the metalworks are as the switch, with 4 switches series connection, one termination VCC power positive pole, one termination pull-down resistance. And the MCU judges whether the breaker is in short circuit trip or not by acquiring the voltage of the AD end.
Under the normal state, because 4 switches are in the closed state, AD end is the high level, and MCU judges there is not short circuit tripping operation warning. If the phase A circuit is in a short circuit condition, the phase A movable iron core acts, the switch of the phase A is instantly opened, the AD end generates a signal which is converted from a high level to a low level once within about 0.1 second, the signal of the AD end is acquired through the MCU, the circuit breaker is judged to be in short circuit trip, and the read data is converted into a short circuit trip alarm signal.
Working principle of example 2
Taking a 4P air break circuit breaker as an example, 2 metal pieces are placed in each phase of N, A, B and C, and the metal pieces are in a normally open state. 2 sheetmetals are used as switches, 4 switches are connected in parallel, one end of each switch is connected with the positive electrode of the VCC power supply, and the other end of each switch is connected with a pull-down resistor. The MCU judges whether the breaker is in short circuit tripping or not by collecting the voltage of the AD end.
Under the normal state, because 4 switches are in the normally open state, AD end is the low level, and MCU judges that there is not short circuit tripping operation to report to the police. If the phase A circuit is in a short circuit condition, the phase A movable iron core acts, the switch of the phase A is instantly closed, the AD end generates a signal which is converted from a low level to a high level once, the time is about 0.1 second, the signal of the AD end is collected through the MCU, the short circuit trip of the circuit breaker can be judged in a variable mode, and the read data are converted into a short circuit trip alarm signal.
Working principle of example 3
Taking a 4P air-break circuit breaker as an example, 2 metal pieces are placed in each phase of N, A, B and C, and the movable iron core is used for keeping the 2 metal pieces in a closed state under the action of spring force. The 2 metal pieces are used as switches, one end of each switch is connected with the positive electrode of the VCC power supply, and the other end is connected with a pull-down resistor. The 4 switches are connected in parallel, and the MCU judges which phase of the breaker is short-circuit tripping by collecting the voltages of the four ends of AD _ N, AD _ A, AD _ B and AD _ C.
Under normal conditions, because 4 switches are in the closed state, 4 AD ends are the high level, and MCU judges there is not short circuit tripping operation warning. When a circuit between the AB phases is in a short circuit condition, the AB phase switch is instantly opened, the AD _ A end and the AD _ B end generate signals which are converted from high level to low level once, the time is about 0.1 second, the AD _ A end signals and the AD _ B end signals are collected through the MCU, the AB phase of the circuit breaker can be judged to be in short circuit trip, the read data are converted into short circuit trip alarm signals, and the working principle of short circuit of other phases is the same.
Working principle of example 4
Taking a 4P air break circuit breaker as an example, 2 metal pieces are placed in each phase of N, A, B and C, and the metal pieces are in a normally open state. The 2 metal pieces are used as switches, one end of each switch is connected with the positive electrode of the VCC power supply, and the other end is connected with a pull-down resistor. The 4 switches are connected in parallel, and the MCU judges which phase of the breaker is short-circuit tripping by collecting the voltages of the four ends of AD _ N, AD _ A, AD _ B and AD _ C.
Under the normal state, because 4 switches are in the normally open state, 4 AD ends are the low level, and MCU judges that there is not short circuit tripping operation to report to the police. When a circuit between the AB phases is short-circuited, the AB phase switch is instantly closed, the AD _ A end and the AD _ B end generate signals which are converted from low level to high level once, the time is about 0.1 second, the AD _ A end signals and the AD _ B end signals are collected through the MCU, the AB phase of the circuit breaker can be judged to be short-circuited and tripped, the read data are converted into short-circuited and tripped alarm signals, and the working principle that other phases are short-circuited is the same.
While the embodiment 1 and the embodiment 2 can only realize short circuit alarm, and the embodiment 3 and the embodiment 4 can specifically judge which phase of short circuit trip alarm is given.
The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.
Claims (7)
1. The utility model provides an intelligent circuit breaker with short circuit alarming function which characterized in that: the short-circuit alarm device comprises a shell, wherein at least one release and a short-circuit detection circuit board are arranged in the shell, two metal pieces are arranged at the front end of a moving iron core of each release in the action direction and are respectively electrically connected with the short-circuit detection circuit board, the moving iron core can drive one metal piece to be in contact with or disconnected from the other metal piece when short-circuit current is generated, and the contact or disconnection of the metal pieces is used for short-circuit alarm.
2. The intelligent circuit breaker with short circuit alarm function according to claim 1, characterized in that: the two metal pieces are L-shaped and are arranged oppositely, the two metal pieces are arranged in a partially overlapped mode, and the overlapped parts of the two metal pieces can be driven by the movable iron core to be in contact or disconnected.
3. The intelligent circuit breaker with short circuit alarm function according to claim 2, characterized in that: the shell is provided with two bayonets, the metal piece is embedded in the bayonets respectively, one end of the metal piece is located in the action direction of the movable iron core, and the other end of the metal piece is electrically connected with the short circuit detection circuit board.
4. The intelligent circuit breaker with short circuit alarm function according to claim 1, 2 or 3, characterized in that: if the tripper is a plurality of, each group of metal pieces are connected in series and electrically connected with the detection end of the short circuit detection circuit board.
5. The intelligent circuit breaker with short circuit alarm function according to claim 1, 2 or 3, characterized in that: if the tripper is a plurality of trippers, the metal pieces of each group are connected in parallel, and the metal pieces connected in parallel are electrically connected with the detection end of the short circuit detection circuit board.
6. The intelligent circuit breaker with short circuit alarm function according to claim 1, 2 or 3, characterized in that: if the release is a plurality of, then each group of metal pieces is respectively and electrically connected with one detection end of the short circuit detection circuit board.
7. The intelligent circuit breaker with short circuit alarm function according to claim 6, characterized in that: the metal pieces in each group are in a normally open state or a normally closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593022.XU CN217983228U (en) | 2022-06-24 | 2022-06-24 | Intelligent circuit breaker with short circuit alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593022.XU CN217983228U (en) | 2022-06-24 | 2022-06-24 | Intelligent circuit breaker with short circuit alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217983228U true CN217983228U (en) | 2022-12-06 |
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ID=84274285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221593022.XU Active CN217983228U (en) | 2022-06-24 | 2022-06-24 | Intelligent circuit breaker with short circuit alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217983228U (en) |
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2022
- 2022-06-24 CN CN202221593022.XU patent/CN217983228U/en active Active
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