CN210984666U - Automatic combined floodgate device of conventional circuit breaker combined with power supply - Google Patents
Automatic combined floodgate device of conventional circuit breaker combined with power supply Download PDFInfo
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- CN210984666U CN210984666U CN201922441629.0U CN201922441629U CN210984666U CN 210984666 U CN210984666 U CN 210984666U CN 201922441629 U CN201922441629 U CN 201922441629U CN 210984666 U CN210984666 U CN 210984666U
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- iron core
- core rod
- circuit breaker
- shell
- moving contact
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Abstract
The utility model discloses an automatic closing device of universal circuit breaker combined current, include: the undervoltage tripper comprises a shell, an iron core structure and an iron core rod, wherein the iron core structure and the iron core rod are installed in the shell, the top end of the iron core rod extends out of the shell, the support is installed on the shell, the microswitch is installed on the support and comprises a moving contact and a switch contact, and the moving contact is located above the top end of the iron core rod. The utility model discloses automatic combined floodgate device of universal circuit breaker combined current designs a support on universal circuit breaker under-voltage release, at shelf location micro-gap switch, comes automatic combined floodgate through micro-gap switch, and simple structure is reliable, through the device, carries out automatic combined floodgate, and less unnecessary power off time can be greatly guaranteed that the power supply of low pressure distribution network is normal.
Description
Technical Field
The utility model relates to a circuit breaker field especially relates to an automatic closing device of conventional circuit breaker combined current.
Background
The universal circuit breaker is a first-stage protection device in a low-voltage distribution system, and plays important roles in connecting and breaking normal working current in the low-voltage distribution system and automatically protecting a circuit when the circuit breaks down. However, after a load or a mains power grid fails, the load or the mains power grid needs to be manually switched on in a low-voltage distribution room to restore to normal state in the prior art, and particularly at night, the load or the mains power grid has the characteristic of long time and brings inconvenience to work and life.
The prior art discloses an automatic power-on switching-on device of a universal circuit breaker, which can realize that an unattended power distribution room can timely recover power supply after power failure. When the switch supplies power in a normal state, the power supply voltage is a normal value, the power supply is charged to M through bridge-shaped rectification filtering, SJ is in an action state, and the delay disconnection contact SJ is disconnected. When the switch trips due to overcurrent protection action, low voltage appears at the moment of short circuit, M in the bridge rectifier filter circuit discharges to a time relay coil to enable the time relay to return in a delayed mode, and the delay time is larger than the switch tripping time by selecting the size of a capacitor, so that after the switch trips, an upper end power supply still keeps, the time relay is still in an action state, an SJ contact is disconnected, ZJ does not act, and power supply cannot be automatically recovered; when the voltage is lost and tripped due to power failure, M discharges the time relay, the time relay returns due to short discharging time, after the power is supplied, the dynamic breaking contact of SJ delayed disconnection is still in a connected state and is disconnected until the setting time is over, before the SJ is disconnected, ZJ acts to start an energy storage loop, and then a K2 normally open contact is used for connecting a closing loop, so that the automatic power supply recovery is realized. The technology is an improvement on the original electric circuit of the circuit breaker, the action is complex, and the circuit structure is only suitable for the circuit breaker with a specific model.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an automatic combined floodgate device of universal circuit breaker combined current, and simple structure can realize the automatic combined floodgate of combined current.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an automatic closing device of conventional circuit breaker combined current, includes: the undervoltage tripper comprises a shell, an iron core structure and an iron core rod, wherein the iron core structure and the iron core rod are installed in the shell, the top end of the iron core rod extends out of the shell, the iron core structure can drive the iron core rod to move up and down, the support is installed on the shell, the microswitch is installed on the support and comprises a moving contact and a switch contact, the moving contact is located above the top end of the iron core rod and is in a normally open state, the moving contact can drive the switch contact to be in a normally closed state, and the switch contact is connected with a closing loop in parallel.
In a preferred embodiment of the present invention, when the under-voltage release detects the incoming line main circuit power supply, the iron core of the iron core structure is attracted, the iron core rod pushes the moving contact, and the moving contact drives the switch contact to be in a normally closed state, so that the closing circuit is turned on.
In a preferred embodiment of the present invention, the support comprises a mounting base, a micro-switch mounting plate and a connecting plate, the mounting base is mounted on the top of the housing, the mounting base comprises a through hole for the iron core rod to pass through, and the connecting plate connects the mounting base and the micro-switch mounting plate.
In a preferred embodiment of the present invention, the micro switch is mounted on the micro switch mounting plate by screws.
The utility model has the advantages that: the utility model discloses automatic combined floodgate device of universal circuit breaker combined current designs a support on universal circuit breaker under-voltage release, at shelf location micro-gap switch, comes automatic combined floodgate through micro-gap switch, and simple structure is reliable, through the device, carries out automatic combined floodgate, and less unnecessary power off time can be greatly guaranteed that the power supply of low pressure distribution network is normal.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the automatic reclosing device of the universal circuit breaker of the present invention;
fig. 2 is a schematic structural diagram of an initial state of the automatic reclosing device of the conventional circuit breaker during the reclosing process;
fig. 3 is a schematic structural diagram of a power restoration state of the automatic power restoration switching-on device of the universal circuit breaker;
the parts in the drawings are numbered as follows: 1-undervoltage release, 13-iron core rod, 2-microswitch, 21-moving contact, 22-switch contact, 31-mounting base, 32-microswitch mounting plate, 33-connecting plate and 4-screw.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
the utility model provides an automatic closing device of conventional circuit breaker combined current, includes: undervoltage release 1, micro-gap switch 2 and support. The undervoltage tripper 1 comprises a shell, an iron core structure and an iron core rod 13, wherein the iron core structure and the iron core rod 13 are installed in the shell, the top end of the iron core rod 13 extends out of the shell, the iron core structure can drive the iron core rod 13 to move up and down, a support is installed on the shell, and the microswitch 2 is installed on the support.
The support comprises a mounting base 31, a microswitch mounting plate 32 and a connecting plate 33, wherein the mounting base 31 is mounted at the top of the shell, the mounting base 31 comprises a through hole for the iron core rod 13 to pass through, and the connecting plate 32 is connected with the mounting base 31 and the microswitch mounting plate 33. The microswitch 2 is mounted on the microswitch mounting plate 33 by screws 4.
The microswitch 2 comprises a moving contact 21 and a switch contact 22, wherein the moving contact 21 is positioned above the top end of the iron core rod 13, the switch contact 22 is in a normally open state, the moving contact 21 can drive the switch contact 21 to be in a normally closed state, and the switch contact 21 is connected with a closing loop in parallel.
The utility model discloses automatic closing device's of conventional circuit breaker combined current working process as follows: when the undervoltage release detects an incoming line main loop power supply, the iron core of the iron core structure is attracted, the iron core rod pushes the moving contact, and the moving contact drives the switch contact to be in a normally closed state, so that a closing loop is switched on.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. The utility model provides an automatic closing device of conventional circuit breaker combined current which characterized in that includes: the undervoltage tripper comprises a shell, an iron core structure and an iron core rod, wherein the iron core structure and the iron core rod are installed in the shell, the top end of the iron core rod extends out of the shell, and the iron core structure can drive the iron core rod to move up and down; the bracket is arranged on the shell, and the microswitch is arranged on the bracket; the microswitch comprises a moving contact and a switch contact, wherein the moving contact is positioned above the top end of the iron core rod, the switch contact is in a normally open state, the moving contact can drive the switch contact to be in a normally closed state, and the switch contact is connected with a closing loop in parallel.
2. The automatic reclosing device of the universal circuit breaker according to claim 1, wherein when the undervoltage release detects an incoming line main loop power supply, the iron core of the iron core structure is closed, the iron core rod pushes the moving contact, and the moving contact drives the switch contact to be in a normally closed state, so that the closing loop is closed.
3. The automatic reclosing device of the universal circuit breaker according to claim 1, wherein the bracket includes a mounting base, a microswitch mounting plate and a connecting plate, the mounting base is mounted on the top of the housing, the mounting base includes a through hole for the iron core rod to pass through, and the connecting plate connects the mounting base and the microswitch mounting plate.
4. The automatic reclosing device of the universal circuit breaker according to claim 3, wherein the micro switch is mounted on the micro switch mounting plate by a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441629.0U CN210984666U (en) | 2019-12-30 | 2019-12-30 | Automatic combined floodgate device of conventional circuit breaker combined with power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441629.0U CN210984666U (en) | 2019-12-30 | 2019-12-30 | Automatic combined floodgate device of conventional circuit breaker combined with power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210984666U true CN210984666U (en) | 2020-07-10 |
Family
ID=71438160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922441629.0U Active CN210984666U (en) | 2019-12-30 | 2019-12-30 | Automatic combined floodgate device of conventional circuit breaker combined with power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210984666U (en) |
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2019
- 2019-12-30 CN CN201922441629.0U patent/CN210984666U/en active Active
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