CN220400499U - Anti-interference alternating current contactor - Google Patents
Anti-interference alternating current contactor Download PDFInfo
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- CN220400499U CN220400499U CN202322107226.9U CN202322107226U CN220400499U CN 220400499 U CN220400499 U CN 220400499U CN 202322107226 U CN202322107226 U CN 202322107226U CN 220400499 U CN220400499 U CN 220400499U
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- iron core
- contactor
- shell
- control chip
- coil
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 208000025274 Lightning injury Diseases 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of alternating current contactors, in particular to an anti-interference alternating current contactor which comprises a shell, wherein a static iron core is fixedly arranged on one side of the inside of the shell, a movable iron core is movably arranged on the other side of the inside of the shell, and a coil is wound on the outer side of the static iron core. In the anti-interference alternating current contactor, when control voltage suddenly drops to abnormal working voltage, a voltage loss signal is transmitted to a control chip in the contactor, the control chip immediately makes analysis and judgment on the signal, the control coil is always electrified in the interference electricity delay time, so that a movable contact and a fixed contact are kept in a suction state and released in a delayed manner, interference electricity faults are avoided, and in the production process, if the condition of instantaneous voltage loss and power loss (commonly called interference electricity) when a power supply system is subjected to lightning stroke or short circuit faults and reclosing is met, the contactor can avoid interference electricity in the set delay time through a voltage loss control assembly, and the contactor is kept from tripping, so that the purpose of keeping continuous production without shutdown is achieved.
Description
Technical Field
The utility model relates to the technical field of alternating-current contactors, in particular to an anti-interference alternating-current contactor.
Background
An alternating current contactor (hereinafter referred to as contactor) is suitable for a circuit of alternating current 50/60Hz, rated working voltage 230/400V, rated insulating voltage 690V and rated working current 630A, and is used for switching on and off the circuit remotely.
For factory enterprises requiring continuous production, in the production process, if the power supply system is subjected to instantaneous voltage loss and power loss (commonly called power-off) after lightning stroke or short circuit fault and reclosing, the contactor is tripped, so that the production is stopped, and serious economic loss is caused.
Disclosure of Invention
The utility model aims to provide an anti-interference alternating current contactor, which aims to solve the problem that in the production process, if the power supply system is subjected to instantaneous voltage loss and power loss (commonly called interference) during reclosing after lightning stroke or short circuit fault, the contactor is tripped to cause production shutdown.
In order to achieve the above purpose, the utility model provides an anti-interference alternating current contactor, which comprises a shell, wherein a static iron core is fixedly arranged on one side of the inside of the shell, a movable iron core is movably arranged on the other side of the inside of the shell, a coil is wound on the outer side of the static iron core, a movable contact is connected on the outer side of the movable iron core, static contacts are arranged at the upper end and the lower end of the inside of the shell, a voltage loss control assembly is arranged in the shell and comprises a control bin, an electric energy meter, a control chip and an attraction power supply are arranged in the control bin, the output end of the control chip controls the on-off of a circuit switch of the attraction power supply, and the electric energy meter is used for detecting a voltage loss signal at the static contact.
Preferably, the stationary iron core and the movable iron core are both in an E-shaped structure.
Preferably, an upper wiring terminal is mounted at the upper end of the shell, a lower wiring terminal is mounted at the lower end of the shell, the outer end of the upper static contact is connected with the upper wiring terminal, and the outer end of the lower static contact is connected with the lower wiring terminal.
Preferably, two ends of the coil are externally connected with power supplies, and after the coil is electrified, the movable iron core is adsorbed through the static iron core, so that the movable contact is contacted with the static contact, and a passage is realized.
Preferably, a reset plate is arranged up and down in the shell, and a reset spring is arranged between the reset plate and the movable iron core.
Preferably, the input end of the electric energy meter is respectively connected with the fixed contacts at the upper end and the lower end, and the suction power supply is connected with the two ends of the coil through a wire.
Preferably, the control chip is a PLC single chip microcomputer, the output end of the electric energy meter is electrically connected with the input end of the control chip, the output end of the control chip is electrically connected with the input end of a circuit switch of the attraction power supply, and the circuit switch is an electromagnetic switch.
Compared with the prior art, the utility model has the beneficial effects that:
in the anti-interference alternating current contactor, when control voltage suddenly drops to abnormal working voltage, a voltage loss signal is transmitted to a control chip in the contactor, the control chip immediately makes analysis and judgment on the signal, the control coil is always electrified in the interference electricity delay time, so that a movable contact and a fixed contact are kept in a suction state and released in a delayed manner, interference electricity faults are avoided, and in the production process, if the condition of instantaneous voltage loss and power loss (commonly called interference electricity) when a power supply system is subjected to lightning stroke or short circuit faults and reclosing is met, the contactor can avoid interference electricity in the set delay time through a voltage loss control assembly, and the contactor is kept from tripping, so that the purpose of keeping continuous production without shutdown is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the housing according to the present utility model;
fig. 3 is a schematic diagram of an internal structure of the voltage loss control assembly according to the present utility model.
The meaning of each reference sign in the figure is:
1. a housing; 11. an upper wiring terminal; 12. a lower terminal; 2. a stationary core; 21. a coil; 3. a movable iron core; 4. a moving contact; 5. a stationary contact; 6. a reset plate; 61. a return spring; 7. a decompression control assembly; 71. a control bin; 72. an electric energy meter; 73. a control chip; 74. a power supply is sucked; 741. and a circuit switch.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides an anti-interference alternating current contactor, as shown in fig. 1-3, which comprises a shell 1, wherein a static iron core 2 is fixedly arranged on one side of the inside of the shell 1, a movable iron core 3 is movably arranged on the other side of the inside of the shell 1, a coil 21 is wound on the outer side of the static iron core 2, a movable contact 4 is connected to the outer side of the movable iron core 3, a static contact 5 is arranged at the upper end and the lower end of the inside of the shell 1, a voltage loss control assembly 7 is arranged in the shell 1 and is used for controlling the coil 21 to be electrified when the voltage loss occurs, the movable contact 4 and the static contact 5 are kept in attraction, the voltage loss control assembly 7 comprises a control bin 71, an electric energy meter 72, a control chip 73 and an attraction power supply 74 are arranged in the control bin 71, the output end of the control chip 73 is used for controlling the on-off of a circuit switch 741 of the attraction power supply 74, the electric energy meter 72 is used for detecting a voltage loss signal at the static contact 5, when the voltage loss is detected, the signal is transmitted to the control chip 73, the circuit switch 741 is closed, and the coil 21 is powered by the attraction power supply 74, and the attraction of the movable contact 4 and the static contact 5 is kept in attraction.
In this embodiment, the static iron core 2 and the movable iron core 3 are both in an E-shaped structure, so that the static iron core 2 and the movable iron core 3 are ensured to have more contact surfaces, and sufficient attraction is ensured.
Specifically, an upper wiring terminal 11 is installed at the upper end of the housing 1, a lower wiring terminal 12 is installed at the lower end of the housing 1, the outer end of the upper static contact 5 is connected with the upper wiring terminal 11, and the outer end of the lower static contact 5 is connected with the lower wiring terminal 12 for externally connecting a system circuit.
Further, the two ends of the coil 21 are externally connected with a power supply, after the coil 21 is electrified, the movable iron core 3 is adsorbed through the static iron core 2, so that the movable contact 4 is in contact with the static contact 5, a passage is realized, and the normal operation of the system is ensured.
Further, a reset plate 6 is mounted up and down in the housing 1, a reset spring 61 is mounted between the reset plate 6 and the movable iron core 3, and when the coil 21 is not electrified, the movable iron core 3 is reset by the action of the reset spring 61, so that the movable contact 4 and the fixed contact 5 are kept effectively disconnected.
Further, the input ends of the electric energy meter 72 are respectively connected to the fixed contacts 5 at the upper end and the lower end for voltage loss detection of the circuit, and the suction power supply 74 is connected to the two ends of the coil 21 through wires for supplying power to the coil 21 during voltage loss.
Further, the control chip 73 is a PLC single chip microcomputer, the output end of the electric energy meter 72 is electrically connected with the input end of the control chip 73, the data of the electric energy meter 72 is received through the control chip 73, the output end of the control chip 73 is electrically connected with the input end of the circuit switch 741 of the suction power supply 74 according to the on-off of the data control circuit switch 741, the circuit switch 741 is an electromagnetic switch, and the on-off of the circuit switch 741 is controlled through the control chip 73.
When the anti-interference alternating current contactor is used, firstly, when the anti-interference alternating current contactor works normally, two ends of a coil 21 are externally connected with a power supply to supply power, after the coil 21 is electrified, a movable iron core 3 is adsorbed through a static iron core 2, so that a movable contact 4 is in contact with a static contact 5, a passage is realized, normal operation of a system is ensured, when control voltage suddenly drops to abnormal working voltage, a voltage loss signal is detected through an electric energy meter 72 and is transmitted to a control chip 73 in the contactor, the control chip 73 immediately analyzes and judges the signal, and controls a circuit switch 741 to be closed, so that the coil 21 is powered through an attracting power supply 74, the movable contact 4 and the static contact 5 keep attracting and release in a delayed manner, so that interference faults are avoided, when the set effective delay time is exceeded, the control chip 73 controls a circuit switch 741 to be opened, so that when the system is opened normally, the coil 21 loses power, the static iron core 2 loses the adsorption force, the movable iron core 3 is reset through the action of a reset spring 61, and the movable contact 4 and the static contact 5 keep effectively opened.
Finally, it should be noted that, in the embodiment, the electric energy meter 72, the control chip 73, the suction power supply 74, the circuit switch 741, and the like, the electronic components in the above components are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known by those skilled in the art through technical manuals or known through routine experiment methods, all the electric components are connected by wires at the idle position of the device, and the specific connection means should refer to the sequential working order among the electric components in the working principle to complete the electric connection, which is known in the art.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. An anti-interference alternating current contactor comprises a shell (1), and is characterized in that: the novel high-voltage transformer is characterized in that a static iron core (2) is fixedly arranged on one side of the inside of the casing (1), a movable iron core (3) is movably arranged on the other side of the inside of the casing (1), a coil (21) is wound on the outer side of the static iron core (2), a movable contact (4) is connected on the outer side of the movable iron core (3), static contacts (5) are arranged at the upper end and the lower end of the inside of the casing (1), a voltage loss control assembly (7) is arranged in the inside of the casing (1), the voltage loss control assembly (7) comprises a control bin (71), an electric energy meter (72), a control chip (73) and an actuation power supply (74) are arranged in the control bin (71), the output end of the control chip (73) controls the on-off of a circuit switch (741) of the actuation power supply (74), and the electric energy meter (72) is used for detecting a voltage loss signal at the position of the static contacts (5).
2. The anti-sloshing ac contactor according to claim 1, wherein: the static iron core (2) and the movable iron core (3) are both E-shaped structures.
3. The anti-sloshing ac contactor according to claim 1, wherein: an upper wiring terminal (11) is arranged at the upper end of the shell (1), a lower wiring terminal (12) is arranged at the lower end of the shell (1), the outer end of the upper fixed contact (5) is connected with the upper wiring terminal (11), and the outer end of the lower fixed contact (5) is connected with the lower wiring terminal (12).
4. The anti-sloshing ac contactor according to claim 1, wherein: two ends of the coil (21) are externally connected with a power supply, and after the coil (21) is electrified, the movable iron core (3) is adsorbed through the static iron core (2), so that the movable contact (4) is in contact with the static contact (5), and a passage is realized.
5. The anti-sloshing ac contactor according to claim 1, wherein: a reset plate (6) is arranged in the shell (1) up and down, and a reset spring (61) is arranged between the reset plate (6) and the movable iron core (3).
6. The anti-sloshing ac contactor according to claim 1, wherein: the input end of the electric energy meter (72) is respectively connected with the fixed contacts (5) at the upper end and the lower end, and the suction power supply (74) is connected with the two ends of the coil (21) through wires.
7. The anti-sloshing ac contactor of claim 6 wherein: the control chip (73) is a PLC singlechip, the output end of the electric energy meter (72) is electrically connected with the input end of the control chip (73), the output end of the control chip (73) is electrically connected with the input end of a circuit switch (741) of the suction power supply (74), and the circuit switch (741) is an electromagnetic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107226.9U CN220400499U (en) | 2023-08-07 | 2023-08-07 | Anti-interference alternating current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107226.9U CN220400499U (en) | 2023-08-07 | 2023-08-07 | Anti-interference alternating current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220400499U true CN220400499U (en) | 2024-01-26 |
Family
ID=89615119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322107226.9U Active CN220400499U (en) | 2023-08-07 | 2023-08-07 | Anti-interference alternating current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220400499U (en) |
-
2023
- 2023-08-07 CN CN202322107226.9U patent/CN220400499U/en active Active
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