CN204720390U - A kind of electronic contactor with protection - Google Patents
A kind of electronic contactor with protection Download PDFInfo
- Publication number
- CN204720390U CN204720390U CN201520478691.6U CN201520478691U CN204720390U CN 204720390 U CN204720390 U CN 204720390U CN 201520478691 U CN201520478691 U CN 201520478691U CN 204720390 U CN204720390 U CN 204720390U
- Authority
- CN
- China
- Prior art keywords
- relay
- controllable silicon
- contact
- resistance
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Relay Circuits (AREA)
Abstract
The utility model discloses a kind of electronic contactor with protection; comprise: circuit board, driving chip, adjustable resistance R, electric capacity, controllable silicon, piezo-resistance, relay and case; described driving chip is connected with adjustable resistance R and controllable silicon respectively; described capacitance series controls pole in adjustable resistance R and silicon controlled; the two ends of described piezo-resistance are connected with controllable silicon and relay respectively; described relay is located in case, and described driving chip, adjustable resistance R, electric capacity, controllable silicon, piezo-resistance, relay and case are all located on circuit board.Closed case is added in the utility model, contact system is allowed to be located in case, effectively prevent from producing electric spark and electric arc because of oxidation, silicon controlled utilizes simultaneously, effectively can regulate startup and the turn-off current of contactor, well solve because of start and turn-off current excessive and cause the element burnout problems in contactor, while there is the characteristic of one-way conduction due to controllable silicon, prevent coil because of always electric and cause overheated burning.
Description
Technical field
The utility model relates to a kind of electronic applications, specifically a kind of electronic contactor with protection.
Background technology
Contactor is a kind of controller of automation, and contactor is mainly used in connecting frequently or disjunction AC and DC circuit, has control capability large, can remote operation, coordinates relay can realize fixed cycle operator, chain control.The way of contact according to contactor can be divided into: contact contactor and contactless contactor; Application scenario according to contactor can be divided into: mechanical contactor and electronic contactor, and the utility model is mainly for electronic contactor.
Electromagnetic mechanism, contact system, arc-control device and other auxiliary body is mostly comprised at the structure composition of existing electronic contactor, its electromagnetic mechanism is made up of coil, dynamic iron core and static iron core, contact system is by main contact and auxiliary contact, auxiliary body comprises bounce spring, buffer spring, contact pressure spring, transmission mechanism and binding post etc., and it exists following weak point in the process of producing and use:
1, due to the selection of above-mentioned composition structure and material, cause the volume of existing contactor comparatively large, heavier mass, and production cost is higher.
2, because the main contact great majority of existing contactor are all be exposed to outside, contact with air for a long time, oxygen in air forms oxide layer in the above, contact resistance resistance between contact is increased, contact resistance even can be caused due to loose contact sometimes unstable, cause contact head to produce electric spark and electric arc.
3, the coil of existing contactor operationally must obtain electric coil always just can have electric current to pass through, and magnetic force is produced around coil, could allow and produce electromagnetic attraction between iron core and armature to overcome the reaction force of back-moving spring and adhesive, and then drive main contacts adhesive and normally work.
Utility model content
Utility model object: the purpose of this utility model is to solve the deficiencies in the prior art, provides a kind of electronic contactor with protection.
Technical scheme: in order to realize above object, a kind of electronic contactor with protection described in the utility model, comprise: circuit board, driving chip, adjustable resistance R, electric capacity, controllable silicon, piezo-resistance, relay and case, described driving chip is connected with adjustable resistance R and controllable silicon respectively, described capacitance series controls pole in adjustable resistance R and silicon controlled, the two ends of described piezo-resistance are connected with controllable silicon and relay respectively, described relay is located in case, described driving chip, adjustable resistance R, electric capacity, controllable silicon, piezo-resistance, relay and case are all located on circuit board.Closed case is added in the utility model, contact system is allowed to be located in case, air can be prevented to be oxidized it, effectively prevent the generation of electric spark and electric arc, silicon controlled utilizes simultaneously, effectively can regulate startup and the turn-off current of contactor, well solve because of start and turn-off current excessive and cause the element burnout problems in contactor, simultaneously because controllable silicon has the characteristic of one-way conduction, when it loses trigger voltage, still maintain conducting state, allow contactor still can keep operating state when coil losing electricity.
Driving chip described in the utility model adopts MOC3022 light isolation triode ac switch driver chip, utilizes the characteristic of its unilateal conduction, coil need not be energized always again, extends the useful life of contactor.
Relay described in the utility model comprises: electromagnetic system, contact system, auxiliary component, wherein, described electromagnetic system comprises coil, unshakable in one's determination, armature, described contact system comprises normally opened contact and normally-closed contact, described auxiliary component comprises: contact pressure spring, buffer spring, bounce spring, insulation seesaw and insulated ring, described coil is around on iron core, described armature is located at side unshakable in one's determination, described contact pressure spring is located on normally opened contact and normally-closed contact, described buffer spring is connected with contact pressure spring, described bounce spring is located in insulation seesaw and is connected with armature, described insulated ring is located at the top of coil.
Contact system described in the utility model and armature link.
Case described in the utility model adopts sealing device, is full of nitrogen, can effectively prevents normally opened contact to be oxidized, effectively avoid out the generation of spark and electric arc in it.
Beneficial effect: a kind of electronic contactor with protection described in the utility model, has the following advantages:
1, a kind of electronic contactor with protection described in the utility model, replace the main contact in original contactor with 3 group relaies, original auxiliary contact all omits, and substantially reduces volume and the quality of contactor, also saves its production cost simultaneously.
2, add the airtight case filling nitrogen in the utility model, the contact of relay is placed on and is full of in the case of nitrogen, the oxygen in contact and air can be avoided to form oxide layer, effectively prevent the generation of electric spark and electric arc.
3, relay external control circuit is allowed in the utility model, utilize silicon controlled unilateral conduction, control circuit is allowed to realize the closed of whole contactor by changing the sense of current and to disconnect, and because the machinery of the seesaw that insulate is arranged, after being allowed to condition at electric current stopping, keeping the moment of damping by armature in insulation seesaw, by the locking position of seesaw, realize coil and only power in the moment of closed and disconnected, reduce coil and obtain the electric time, effectively prevent coil because of long-term electric overheated and burn.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cut-away view of " relay " in the utility model;
In figure: 1-circuit board, 2-driving chip, 3-adjustable resistance R, 4-electric capacity, 5-controllable silicon, 6-piezo-resistance, 7-relay, 8-case, relay 7 also comprises: 9-electromagnetic system, 10-contact system, electromagnetic system 9 also comprises: 11-coil, 12-are unshakable in one's determination, 13-armature, and contact system 10 also comprises: 14-normally opened contact and 15-normally-closed contact.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Embodiment
A kind of electronic contactor with protection as depicted in figs. 1 and 2; comprise: circuit board 1, driving chip 2, adjustable resistance R3, electric capacity 4, controllable silicon 5, piezo-resistance 6, relay 7 and case 8; wherein; described relay 7 comprises: electromagnetic system 9, contact system 10, auxiliary component; described electromagnetic system 9 comprises: coil 11, iron core 12, armature 13; described contact system 10 comprises: normally opened contact 14 and normally-closed contact 15, and described auxiliary component comprises: contact pressure spring, buffer spring, bounce spring, insulation seesaw and insulated ring.
The relation of above-mentioned each parts is as follows:
Described driving chip adopts MOC3022 light isolation triode ac switch driver chip, the pin of described driving chip 2 is connected with adjustable resistance R3 and controllable silicon 5 respectively, described electric capacity 4 is serially connected with the control pole of adjustable resistance R3 and controllable silicon 5, the two ends of described piezo-resistance 6 are connected with controllable silicon 5 and relay 7 respectively, described relay 7 is located in case 8, and described driving chip 2, adjustable resistance R3, electric capacity 4, controllable silicon 5, piezo-resistance 6, relay 7 and case 8 are all located on circuit board 1; Described coil 11 is around on unshakable in one's determination 12, described armature 13 is located at the side of unshakable in one's determination 12, described contact system 10 links with armature 13, described contact pressure spring is located on normally opened contact 14 and normally-closed contact 15, described buffer spring is connected with contact pressure spring, described bounce spring is located in insulation seesaw and is connected with armature 13, and described insulated ring is located at the top of coil 11.
Case described in the present embodiment adopts sealing device, is full of nitrogen, can effectively prevents normally opened contact to be oxidized, effectively avoid out the generation of spark and electric arc in it.
A kind of electronic contactor with protection described in the present embodiment, the specific works method of this electronic contactor is as follows:
(A), when contactor is energized, driving chip 2 will be started working;
(B), now adjustable resistance R3 will carry out resistance adjustment according to the current conditions of driving chip 2, and impel electric capacity work;
(C), electric capacity 4 will give controllable silicon 5 one forward conduction voltages, and controllable silicon 5 obtains first pulse, and now time of sending according to the first pulse of controllable silicon 5 and width determine the angle of flow size of self, and then determine the size of output current;
(D), then piezo-resistance 6 voltage will be flowed to electromagnetic system 9, coil now in electromagnetic system 9 12 electric;
(E), now unshakable in one's determination 12 electromagnetic attraction is produced by armature 13 adhesive;
(F), because contact system 10 and armature 13 are interaction relations, thus normally opened contact 14 closes, and the armature 13 be simultaneously located in insulation board utilizes damping torque to carry out self-locking, allows normally opened contact 14 be in closure state always, and now whole relay 7 is started working;
(G), in the above-mentioned course of work, because controllable silicon 5 has the characteristic of one-way conduction, thus when contactor removes trigger voltage, it is still in conducting state, and whole contactor still can work normally;
(H), when contactor needs to quit work, turn off the power supply of controllable silicon 5 anode or regulate adjustable resistor R3 to cause controllable silicon 5 anode current to be less than the minimum value maintaining conducting, also can be additional be alternating voltage or pulsating dc voltage, so when voltage zero-cross, controllable silicon 5 can turn off voluntarily;
(I) the bounce spring, now on armature 13 will allow armature 13 leave unshakable in one's determination 12, causes normally opened contact 14 to disconnect, and allows normally-closed contact 15 adhesive, causes whole contactor to quit work.
Claims (5)
1. the electronic contactor with protection, it is characterized in that: comprising: circuit board (1), driving chip (2), adjustable resistance R(3), electric capacity (4), controllable silicon (5), piezo-resistance (6), relay (7) and case (8), described driving chip (2) respectively with adjustable resistance R(3) and controllable silicon (5) be connected, described electric capacity (4) is serially connected with adjustable resistance R(3) and the control pole of controllable silicon (5), the two ends of described piezo-resistance (6) are connected with controllable silicon (5) and relay (7) respectively, described relay (7) is located in case (8), described driving chip (2), adjustable resistance R(3), electric capacity (4), controllable silicon (5), piezo-resistance (6), relay (7) and case (8) are all located on circuit board (1).
2. a kind of electronic contactor with protection according to claim 1, is characterized in that: described driving chip (2) adopts MOC3022 light isolation triode ac switch driver chip.
3. a kind of electronic contactor with protection according to claim 1, it is characterized in that: described relay (7) comprising: electromagnetic system (9), contact system (10), auxiliary component, wherein, described electromagnetic system (9) comprises coil (11), (12) unshakable in one's determination, armature (13), described contact system (10) comprises normally opened contact (14) and normally-closed contact (15), described auxiliary component comprises: contact pressure spring, buffer spring, bounce spring, insulation seesaw and insulated ring, described coil (12) is around on iron core (11), described armature (13) is located at the side of iron core (12), described contact pressure spring is located on normally opened contact (14) and normally-closed contact (15), described buffer spring is connected with contact pressure spring, described bounce spring is located in insulation seesaw and is connected with armature (13), described insulated ring is located at the top of coil (11).
4. a kind of electronic contactor with protection according to claim 1, is characterized in that: described contact system (10) and armature (13) link.
5. a kind of electronic contactor with protection according to claim 1, is characterized in that: described case (8) adopts sealing device, is full of nitrogen in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478691.6U CN204720390U (en) | 2015-07-06 | 2015-07-06 | A kind of electronic contactor with protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520478691.6U CN204720390U (en) | 2015-07-06 | 2015-07-06 | A kind of electronic contactor with protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720390U true CN204720390U (en) | 2015-10-21 |
Family
ID=54319366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520478691.6U Expired - Fee Related CN204720390U (en) | 2015-07-06 | 2015-07-06 | A kind of electronic contactor with protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762017A (en) * | 2016-04-29 | 2016-07-13 | 苏州新亚科技有限公司 | Relay module control system and working method |
| CN106898523A (en) * | 2017-03-03 | 2017-06-27 | 江苏省太仓中等专业学校 | A kind of intelligent relay module control system with self-shield |
-
2015
- 2015-07-06 CN CN201520478691.6U patent/CN204720390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762017A (en) * | 2016-04-29 | 2016-07-13 | 苏州新亚科技有限公司 | Relay module control system and working method |
| CN106898523A (en) * | 2017-03-03 | 2017-06-27 | 江苏省太仓中等专业学校 | A kind of intelligent relay module control system with self-shield |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104052303A (en) | Undisturbed switching mechanism of voltage-stabilization electricity-saving device | |
| CN102758951B (en) | Dual-power electromagnetic head | |
| CN204720390U (en) | A kind of electronic contactor with protection | |
| CN203882905U (en) | Electromagnetic relay | |
| CN203895364U (en) | Double-coil energy-saving type contactor power source switch | |
| CN203787300U (en) | Control circuit of electric operating mechanism | |
| CN203250689U (en) | Constant magnetic-holding alternating-current contactor control circuit | |
| CN201830223U (en) | Active and passive combined power switch | |
| CN103247475A (en) | Constant-magnetic maintaining AC contactor control circuit and control method thereof | |
| CN202585232U (en) | Permanent magnet alternating current vacuum contactor | |
| CN212811238U (en) | 10kV distribution lines attaches protection device | |
| CN202756734U (en) | Dual-power electromagnetic valve | |
| CN204834384U (en) | Operating mechanism and use locomotive of this operating mechanism | |
| CN202886556U (en) | Isolation type relay contact actuation detecting circuit | |
| CN103308852A (en) | Full-isolation relay contact action detecting circuit | |
| CN203151084U (en) | Electrical protection circuit for electromagnetic switch | |
| CN205564644U (en) | Relay module control system | |
| CN202067728U (en) | Permanent magnetic contactor capable of magnetic holding in power interruption | |
| CN201893292U (en) | Alternating current contactor with soft start and arcless on-off functions | |
| CN206301237U (en) | A kind of UAV system DC low-voltage high current on-off controller | |
| CN207217405U (en) | A kind of relay energy-saving structure | |
| CN105762017A (en) | Relay module control system and working method | |
| CN204126741U (en) | Magnetic valve controller on gasoline/liquefied petroleum gas (LPG) dual-purpose generator | |
| CN104867650B (en) | A kind of manipulator demagnetization module | |
| CN2186954Y (en) | Electromagnetic drag mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |