CN215008113U - Quick tripping control circuit of electromagnetic operating mechanism - Google Patents
Quick tripping control circuit of electromagnetic operating mechanism Download PDFInfo
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- CN215008113U CN215008113U CN202121084515.6U CN202121084515U CN215008113U CN 215008113 U CN215008113 U CN 215008113U CN 202121084515 U CN202121084515 U CN 202121084515U CN 215008113 U CN215008113 U CN 215008113U
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Abstract
The utility model discloses a quick dropout control circuit of electromagnetic operating mechanism. It is including parallelly connected solenoid L1 and the relay coil J who sets up, solenoid L1 and relay coil J's output are connected to output circuit on, a micro-gap switch that has normally open point and normally closed point is connected to solenoid L1 and relay coil J's input, micro-gap switch passes through relay coil's normally closed point J1 and closes a floodgate key connection to input circuit on, be provided with the normally open point J2 of the relay coil parallelly connected with relay coil's normally closed point J1 between micro-gap switch and the relay coil J. The utility model has the advantages that: the electromagnetic operating mechanism can quickly cut off the attraction current of the electromagnetic coil after normal self-locking of the electromagnetic operating mechanism is ensured, so that the conflict between a tripping mechanism and a closing circuit generated when the switch is in short-circuit protection is ensured, and the problem that the electromagnetic circuit cannot be cut off due to the fact that the manual closing current still exists after the tripping mechanism is opened when the short-circuit risk exists is solved.
Description
Technical Field
The utility model relates to a low-voltage apparatus class control circuit, specific quick dropout control circuit of electromagnetic operating mechanism that says so.
Background
When the electromagnetic protection switch mechanism is manually switched on, because the lower end of the protection switch is influenced by a protection circuit, a short-circuit risk may exist simultaneously, when the short-circuit risk exists, the manual switching-on is artificially pressed, the time and the speed are not fixed, the time and the speed inevitably conflict with the short-circuit tripping protection speed of the switch, and the phenomenon that an electromagnetic circuit cannot be switched off due to the existence of manual switching-on current after the tripping mechanism is opened is easily caused, in order to overcome the problem, the applicant applies an invention patent application with the application number of 201911251832.X and the name of a breaker electromagnetic operation mechanism to solve the problem, can quickly and reliably carry out switching-on and switching-off operation through structural design, can simultaneously provide reliable premise guarantee for self-locking in a switching-on state during power failure and having a tripping protection function, but still needs to further design how to realize corresponding functions by designing a circuit of the operation mechanism, therefore, how to solve the speed conflict existing in the manual closing and the short-circuit breaking is a technical problem to be solved.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a can solve the disconnected conflict in speed that exists of manual combined floodgate and short circuit and break off quick dropout control circuit of electromagnetic operating mechanism.
In order to solve the technical problem, the utility model discloses an electromagnetic operating mechanism quick release control circuit, including parallelly connected solenoid L1 and the relay coil J that sets up, solenoid L1 and relay coil J's output is connected to on the output circuit, a micro-gap switch that has normal open point and normal close point is connected to solenoid L1 and relay coil J's input, micro-gap switch is through on relay coil's normally closed point J1 and closing key-type connection to the input circuit, be provided with the relay coil's that connects in parallel with relay coil's normally closed point J1 normally open point J2 between micro-gap switch and the relay coil J.
The input end of the electromagnetic coil L1 is connected with the normally closed point of the micro switch, and the input end of the relay coil J is connected with the normally open point of the micro switch.
And a closing signal input circuit is arranged on a parallel connection node of a normally closed point J1 of the relay coil and a normally open point J2 of the relay coil.
The input circuit and the output circuit are connected to 220v alternating current.
The electromagnetic operating mechanism is provided with a self-locking mechanism, and the electromagnetic coil L1 can be self-locked through the self-locking mechanism after being electrified and can disconnect the normally-closed point of the microswitch.
And a driving spring serving as a driving part is arranged in the self-locking mechanism.
The utility model has the advantages that: the electromagnetic operating mechanism can quickly cut off the attraction current of the electromagnetic coil after normal self-locking of the electromagnetic operating mechanism is ensured, so that the conflict between a tripping mechanism and a closing circuit generated when the switch is in short-circuit protection is ensured, and the problem that the electromagnetic circuit cannot be cut off due to the fact that the manual closing current still exists after the tripping mechanism is opened when the short-circuit risk exists is solved.
Drawings
Fig. 1 is a circuit diagram of the quick tripping control circuit of the electromagnetic operating mechanism of the utility model;
fig. 2 is a schematic structural diagram of an electromagnetic operating mechanism of a circuit breaker in an embodiment.
Detailed Description
The following describes the electromagnetic operating mechanism quick-release control circuit in further detail with reference to the accompanying drawings and the detailed description.
As shown in the figures, the electromagnetic operating mechanism quick release control circuit of the present invention can be applied to an electromagnetic protection switch mechanism of any structure, but for clearly describing the principle of its implementation, the present embodiment is described with application No. 201911251832.X, named as a circuit breaker electromagnetic operating mechanism, as shown in fig. 2, the circuit breaker electromagnetic operating mechanism includes a static contact 1, a moving contact 2 matched with the static contact, and an electromagnetic mechanism 3 capable of operating the moving contact, the electromagnetic mechanism 3 is hinged to a swing arm 5 through a transition connector 4, the end of the swing arm 5 is hinged to the moving contact 2 so as to drive the moving contact to open and close, a hook 6 matched with the transition connector is disposed at the front side of the electromagnetic mechanism 3, the hook 6 can be driven by an elastic driving member, so as to realize closing locking or opening separation between the transition connector to form a self-locking mechanism of the electromagnetic operating mechanism, the elastic driving piece comprises an L-shaped swing rod 8 and an extension spring 9, the L-shaped swing rod 8 is synchronously connected with the clamping hook through a rotating shaft 7, the extension spring 9 is positioned behind the lower side of the L-shaped swing rod, the L-shaped swing rod 8 is provided with a matched micro switch, the side part of the electromagnetic mechanism 3 is provided with an auxiliary operating mechanism 10, the upper end of the L-shaped swing rod 8 is connected to the auxiliary operating mechanism and matched with the micro switch, the lower end of the L-shaped swing rod 8 is connected with the extension spring 9, an auxiliary coil of the auxiliary operating mechanism is electrified, and an actuating mechanism of the auxiliary operating mechanism acts to enable the L-shaped swing rod 8 and the clamping hook 6 to synchronously act, so that the clamping hook 6 is separated from the clamping groove; its control circuit adopts the utility model discloses a quick release control circuit, including parallelly connected 3 solenoid L1 of electromagnetic mechanism and the relay coil J of auxiliary operation mechanism 10 that set up in the circuit, solenoid L1 and relay coil J's output is connected to on the output circuit, a micro-gap switch that has normal open point and normal close point is connected to solenoid L1 and relay coil J's input, it is visible from the figure, micro-gap switch's normal close point is connected to solenoid L1's input, micro-gap switch's normal open point is connected to relay coil J's input, micro-gap switch is connected to the input circuit through relay coil's normal close point J1 and combined floodgate button, be provided with the relay coil's that connects in parallel with relay coil's normal close point J1 between micro-gap switch and the relay coil J normally open point J2, input circuit and output circuit are connected to in the 220v alternating current.
Furthermore, a closing signal input circuit is arranged on a parallel connection node of the normally closed point J1 of the relay coil and the normally open point J2 of the relay coil, and remote automatic signal input can be realized through the closing signal input circuit.
The working principle is as follows:
when a manual key S is pressed or a closing current signal is input, current passes through a normally closed point J1 of a relay coil and then passes through a normally closed point of a microswitch SP to enable an electromagnetic coil L1 to be electrified and sucked, a driving block driven by an iron core of the electromagnetic mechanism moves backwards through the driving block 11 to further drive a swing arm 5 to swing through a transition connecting piece 4, the swing of the swing arm 5 enables a moving contact 2 and a fixed contact to be contacted, so that closing action is realized, the attraction of the electromagnetic coil L1 is in place, at the moment, the driving block moves backwards to enable a clamping hook to be contacted with the transition connecting piece and enter a clamping groove, the clamping hook is limited in the clamping groove by the elasticity of an extension spring, so that the self-locking mechanism is self-locked in place under the action of the spring, after the micro-locking is locked, an L-shaped swing rod 8 presses the microswitch to disconnect a normally closed contact of the microswitch, and at the moment, the electromagnetic coil L1 of the electromagnetic mechanism is electrified, meanwhile, the normally open point of the microswitch is closed, so that the J coil of the relay of the auxiliary operating mechanism 10 is electrified and attracted, and an attraction keeping state is formed through the normally open contact J2, so that the upper end input circuit of the microswitch is quickly cut off again, and meanwhile, the closing locking reliability is very high because the clamping hook is clamped in the clamping groove, so that the attraction current of the electromagnetic coil can be quickly cut off after the mechanism is normally self-locked, and the conflict generated on the tripping mechanism and the closing circuit when the short-circuit protection is met by the switch is ensured.
Claims (6)
1. The utility model provides a quick dropout control circuit of electromagnetic operating mechanism which characterized in that: including parallelly connected solenoid L1 and the relay coil J that sets up, solenoid L1 and relay coil J's output is connected to output circuit on, a micro-gap switch that has normal open point and normal close point is connected to solenoid L1 and relay coil J's input, micro-gap switch is connected to the input circuit through relay coil's normally closed point J1 and closing button, be provided with the relay coil's that is parallelly connected with relay coil's normally closed point J1 between micro-gap switch and the relay coil J normally open point J2.
2. The electromagnetic operating mechanism quick trip control circuit of claim 1, wherein: the input end of the electromagnetic coil L1 is connected with the normally closed point of the micro switch, and the input end of the relay coil J is connected with the normally open point of the micro switch.
3. The electromagnetic operating mechanism quick trip control circuit according to claim 1 or 2, characterized in that: and a closing signal input circuit is arranged on a parallel connection node of a normally closed point J1 of the relay coil and a normally open point J2 of the relay coil.
4. The electromagnetic operating mechanism quick trip control circuit of claim 3, wherein: the input circuit and the output circuit are connected to 220v alternating current.
5. The electromagnetic operating mechanism quick trip control circuit of claim 1, 2 or 4, wherein: the electromagnetic operating mechanism is provided with a self-locking mechanism, and the electromagnetic coil L1 can be self-locked through the self-locking mechanism after being electrified and can disconnect the normally-closed point of the microswitch.
6. The electromagnetic operating mechanism quick trip control circuit of claim 5, wherein: and a driving spring serving as a driving part is arranged in the self-locking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084515.6U CN215008113U (en) | 2021-05-19 | 2021-05-19 | Quick tripping control circuit of electromagnetic operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121084515.6U CN215008113U (en) | 2021-05-19 | 2021-05-19 | Quick tripping control circuit of electromagnetic operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008113U true CN215008113U (en) | 2021-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121084515.6U Active CN215008113U (en) | 2021-05-19 | 2021-05-19 | Quick tripping control circuit of electromagnetic operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215008113U (en) |
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2021
- 2021-05-19 CN CN202121084515.6U patent/CN215008113U/en active Active
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