CN113963994B - Contactor that adhesion was reported to police - Google Patents
Contactor that adhesion was reported to police Download PDFInfo
- Publication number
- CN113963994B CN113963994B CN202111204742.2A CN202111204742A CN113963994B CN 113963994 B CN113963994 B CN 113963994B CN 202111204742 A CN202111204742 A CN 202111204742A CN 113963994 B CN113963994 B CN 113963994B
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- Prior art keywords
- contact
- alarm
- adhesion
- dynamic
- contactor
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- 230000003068 static effect Effects 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000006378 damage Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 2
- 230000002567 autonomic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Alarm Systems (AREA)
Abstract
A contactor for adhesion alarm comprises a static contact group, a dynamic contact group, an armature unit and an alarm circuit, wherein the armature unit is driven by an elastic piece and/or electromagnetism to open and close; the dynamic contact group is provided with a first dynamic alarm contact which is in a normally closed state with the first adhesion alarm contact and a second dynamic alarm contact which is in a normally open state with the second adhesion alarm contact. The invention adopts a double-armature structure, realizes the independent adhesion detection and alarm functions of the contactor without external equipment under the matching action of the two armatures, and prevents equipment damage caused by undetected adhesion of the contactor and accidents caused by live-line operation of personnel due to the adhesion of the contactor.
Description
Technical Field
The invention relates to the field of electricity and automation, in particular to a contactor for adhesion alarm.
Background
Contactors are widely used in the electrical and automation fields. The electromagnetic force is matched with the elastic force of the spring to realize the connection and disconnection of the contact, so that the on-off of a circuit is controlled by manual operation, and the contactor is popular in the development form that the current electrical equipment tends to be automatic and intelligent. The figure of the contactor can be seen in various fields such as household appliances, large-scale factory equipment, intelligent electrical equipment, power transmission and distribution systems and the like. Although the contactor is widely used, the contactor has some defects, and the adhesion of the contact is a common fault of the contactor.
Contactor contact sticking is a relatively serious fault. The adhesion of the contacts can cause the machine to be out of control, the electric heating is dry, and the like, and even mechanical accidents and personal injury accidents can be caused. When the coil loses power, an operator generally thinks that the contactor contacts are disconnected and the load stops running. But when the contactor takes place the adhesion, because the trouble takes place inside, often can't discover the trouble the very first time, the consumer that should cut off the power supply keeps on operating, if the power supply can cause electrical equipment to damage in untimely outage. If the operator thinks that the load is powered off by mistake at this moment, the live operation may cause the operator to get an electric shock, causing an injury accident.
Disclosure of Invention
Aiming at one or more problems that the adhesion of the contactor cannot be found in time, the invention provides the adhesion alarm contactor which automatically alarms to remind an operator that the contactor has a fault and avoids accidents.
In order to achieve the purpose, the invention adopts the following technical scheme: a contactor for adhesion alarm comprises a static contact group, a dynamic contact group and an armature unit which is driven by an elastic piece and/or electromagnetism to open and close, wherein the static contact group is electrically connected with a load, and the dynamic contact group is in transmission connection with the armature unit;
the alarm circuit is provided with a first adhesion alarm contact, a second adhesion alarm contact, a power supply and an alarm device;
the dynamic contact group is provided with a first dynamic alarm contact which is in a normally closed state with the first adhesion alarm contact and a second dynamic alarm contact which is in a normally open state with the second adhesion alarm contact;
the power supply is sequentially connected with a normally closed first adhesion alarm contact and a first dynamic alarm contact in series, a normally open second adhesion alarm contact and a second dynamic alarm contact in series and an alarm device.
Preferably, the armature unit has an electromagnetic core and a primary armature and a secondary armature arranged on one side of the electromagnetic core;
the main armature is in transmission connection with a second dynamic alarm contact of the dynamic contact group and other contacts which are in touch control opening and closing with the static contact group;
the auxiliary armature is in transmission connection with the first dynamic alarm contact, and the first dynamic alarm contact is electrically connected with the second dynamic alarm contact.
Preferably, in response to an attractive force generated by electromagnetic starting of the electromagnetic core, the main armature moves towards the electromagnetic core against the elastic force of the elastic member, so that the dynamic contact group is in contact with the corresponding contact of the static contact group to form a closed state.
Preferably, in response to the attraction force generated by the electromagnetic starting of the electromagnetic iron core, the main armature and the auxiliary armature overcome the elastic force of the elastic piece and move towards the electromagnetic iron core synchronously, so that the first adhesion alarm contact in the normally closed state is disconnected from the first dynamic contact, the second adhesion alarm contact in the normally open state is closed from the second dynamic contact, and the alarm circuit is kept in the disconnected state.
Preferably, in response to the main armature and the electromagnetic iron core being in an adhesion fault state, the second adhesion alarm contact and the second dynamic alarm contact are closed, and are communicated with the first adhesion alarm contact and the first dynamic contact in a normally closed state, and the alarm circuit is in a power-on state so that the alarm device is started.
Preferably, the alarm device is integrated on the contactor, the integrally designed contactor realizes the self-detection of adhesion without any external equipment (such as a DDC mainboard), and the self-alarm can be realized once the adhesion occurs, and the alarm device comprises one or more of a buzzer and an indicator light.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a double-armature structure, controls the actuation and the disconnection of a dynamic contact group and a static contact group through a main armature to control the opening and the closing of a load circuit, controls an adhesion alarm contact and a dynamic alarm contact through an auxiliary armature to control the opening and the closing of an alarm circuit, and realizes adhesion alarm under the matching action of two armatures. Through modifying the inner structure of contactor, increase alarm device simultaneously in the contactor, realize not with the help of external equipment completely, by independent realization adhesion detection and alarming function of contactor, automatic alarm reminds operating personnel contactor to break down, prevents because the contactor adhesion is not discovered and the equipment that leads to damages to and prevent the contactor adhesion and lead to personnel live operation and the accident that leads to.
Drawings
In order to more clearly illustrate the technical solution, the drawings required to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment in a state where a contactor is turned on.
Fig. 3 is a schematic structural diagram of the contactor in a stuck state according to the embodiment.
Detailed Description
In order to clearly and completely understand the technical solution, the invention is further described by combining the embodiment with the accompanying drawings, and obviously, the described embodiment is only a part of the embodiment of the invention, and all other embodiments obtained by persons skilled in the art without creative efforts belong to the protection scope of the invention.
As shown in fig. 1, the contactor for adhesion alarm includes a static contact set 100, a dynamic contact set 200, and an armature unit 300 that is opened and closed by an elastic member and/or an electromagnetic drive, wherein the static contact set 100 is electrically connected with a load, and the dynamic contact set 200 is in transmission connection with the armature unit 300;
the device also comprises an alarm circuit 400 which is provided with a first adhesion alarm contact 401, a second adhesion alarm contact 402, a power supply 403 and an alarm device 404;
the dynamic contact group 200 is provided with a first dynamic alarm contact 201 which is in a normally closed state with the first adhesion alarm contact 401, and a second dynamic alarm contact 202 which is in a normally open state with the second adhesion alarm contact 402;
the power supply 403 is sequentially connected in series with a normally closed first adhesion alarm contact 401 and a first dynamic alarm contact 201, a normally open second adhesion alarm contact 402 and a second dynamic alarm contact 202, and an alarm device 404. The armature unit 300 has an electromagnetic core 301, and a primary armature 302 and a secondary armature 303 disposed on one side of the electromagnetic core 301.
The main armature is in transmission connection with a second dynamic alarm contact of the dynamic contact group and other contacts which are in touch control opening and closing with the static contact group; the auxiliary armature is in transmission connection with the first dynamic alarm contact, and the first dynamic alarm contact is electrically connected with the second dynamic alarm contact.
As shown in fig. 2, the electromagnetic core 301 outputs current through the control power supply 304, so that the coil 305 wound in the electromagnetic core generates a magnetic field, and the electromagnetic core generates attraction force on the primary armature 302 and the secondary armature 303, when the electromagnetic core generates attraction force, the primary armature moves towards the electromagnetic core against the elastic force of the elastic member 306, so that the dynamic contact set 200 contacts with the corresponding contact of the static contact set 100 to form a closed state, thereby completing the operation of the load circuit.
Under the normal state, the second adhesion alarm contact and the second dynamic contact are in a normally open state, and the alarm circuit is in a disconnected state. When the electromagnetic iron core 301 is electromagnetically started to generate suction force, the main armature 302 and the auxiliary armature 303 overcome the elastic force of the elastic piece and move towards the electromagnetic iron core synchronously, so that the first adhesion alarm contact 401 in a normally closed state is disconnected from the first dynamic contact 201, the second adhesion alarm contact 402 in a normally open state is closed with the second dynamic contact 202, the alarm circuit is kept in a disconnected state, and the contactor runs normally.
As shown in fig. 3, when the main armature 302 and the electromagnetic core 301 are in an adhesion fault state, the second adhesion alarm contact 402 and the second dynamic alarm contact 202 are closed, and are conducted with the first adhesion alarm contact 401 and the first dynamic contact 201 in a normally closed state, the alarm circuit is in a power-on state so that the alarm device 404 is started, and the alarm device operates to prompt that the contactor has the adhesion fault.
Alarm device is integrated on the contactor, the contactor of integrated design realizes not with the help of any external equipment (like the DDC mainboard), and the adhesion of autonomic detection in case take place the adhesion can report to the police voluntarily, alarm device includes one of them or the multiple of bee calling organ, pilot lamp, through improving the inner structure of traditional contactor, increases alarm device in the contactor simultaneously, realizes not with the help of external equipment completely, detects and alarming function by the independent realization adhesion of contactor.
The above disclosure is intended to be illustrative of one or more of the preferred embodiments of the present invention and is not intended to limit the invention in any way, which is equivalent or conventional to one skilled in the art and which is intended to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a contactor that adhesion was reported to police, includes static contact group and dynamic contact group and receives the armature unit that elastic component and/or electromagnetic drive opened and shut, static contact group and load electric connection, dynamic contact group is connected its characterized in that with armature unit transmission:
the alarm circuit is provided with a first adhesion alarm contact, a second adhesion alarm contact, a power supply and an alarm device;
the dynamic contact group is provided with a first dynamic alarm contact which is in a normally closed state with the first adhesion alarm contact and a second dynamic alarm contact which is in a normally open state with the second adhesion alarm contact;
the power supply is sequentially connected with a normally closed first adhesion alarm contact and a first dynamic alarm contact in series, a normally open second adhesion alarm contact and a second dynamic alarm contact in series, and an alarm device in series;
the armature unit is provided with an electromagnetic iron core, and a main armature and an auxiliary armature which are arranged on one side of the electromagnetic iron core;
the main armature is in transmission connection with a second dynamic alarm contact of the dynamic contact group and other contacts which are in touch control opening and closing with the static contact group;
the auxiliary armature is in transmission connection with the first dynamic alarm contact, and the first dynamic alarm contact is electrically connected with the second dynamic alarm contact.
2. The adhesion alarm contactor as claimed in claim 1, wherein: and responding to the suction force generated by the electromagnetic starting of the electromagnetic iron core, and enabling the main armature to overcome the elastic force of the elastic piece to move towards the electromagnetic iron core so as to enable the dynamic contact group to be in contact with the corresponding contact of the static contact group to form a closed state.
3. The adhesion alarm contactor as claimed in claim 1, wherein: responding to the suction force generated by the electromagnetic starting of the electromagnetic iron core, the main armature and the auxiliary armature overcome the elastic force of the elastic piece and move towards the electromagnetic iron core synchronously, so that the first adhesion alarm contact in a normally closed state is disconnected with the first dynamic contact, the second adhesion alarm contact in a normally open state is closed with the second dynamic contact, and the alarm circuit is kept in a disconnected state.
4. The adhesion alarm contactor according to claim 1, wherein: and responding that the main armature and the electromagnetic iron core are in an adhesion fault state, closing the second adhesion alarm contact and the second dynamic alarm contact, conducting the second adhesion alarm contact and the first dynamic alarm contact in a normally closed state, and enabling the alarm circuit to be in a power-on state so as to start the alarm device.
5. The adhesion warning contactor according to any one of claims 1 to 4, wherein: the alarm device is integrated on the contactor and comprises one or more of a buzzer and an indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111204742.2A CN113963994B (en) | 2021-10-15 | 2021-10-15 | Contactor that adhesion was reported to police |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111204742.2A CN113963994B (en) | 2021-10-15 | 2021-10-15 | Contactor that adhesion was reported to police |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113963994A CN113963994A (en) | 2022-01-21 |
| CN113963994B true CN113963994B (en) | 2022-10-21 |
Family
ID=79464111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111204742.2A Active CN113963994B (en) | 2021-10-15 | 2021-10-15 | Contactor that adhesion was reported to police |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113963994B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890237A (en) * | 2012-09-27 | 2013-01-23 | 潍柴动力股份有限公司 | Method and device for detecting faults of main touch point of high-voltage direct-current contact |
| CN202794463U (en) * | 2012-09-27 | 2013-03-13 | 潍柴动力股份有限公司 | Detection device for main contact fault of high-voltage direct current contactor |
| CN103715013A (en) * | 2013-12-18 | 2014-04-09 | 惠州市亿能电子有限公司 | Relay anti-adhesion circuit |
| CN207663991U (en) * | 2018-01-15 | 2018-07-27 | 中植一客成都汽车有限公司 | A kind of relay adhesion warning circuit |
-
2021
- 2021-10-15 CN CN202111204742.2A patent/CN113963994B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890237A (en) * | 2012-09-27 | 2013-01-23 | 潍柴动力股份有限公司 | Method and device for detecting faults of main touch point of high-voltage direct-current contact |
| CN202794463U (en) * | 2012-09-27 | 2013-03-13 | 潍柴动力股份有限公司 | Detection device for main contact fault of high-voltage direct current contactor |
| CN103715013A (en) * | 2013-12-18 | 2014-04-09 | 惠州市亿能电子有限公司 | Relay anti-adhesion circuit |
| CN207663991U (en) * | 2018-01-15 | 2018-07-27 | 中植一客成都汽车有限公司 | A kind of relay adhesion warning circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113963994A (en) | 2022-01-21 |
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