CN201233847Y - AC contact control circuit - Google Patents
AC contact control circuit Download PDFInfo
- Publication number
- CN201233847Y CN201233847Y CNU2008200508112U CN200820050811U CN201233847Y CN 201233847 Y CN201233847 Y CN 201233847Y CN U2008200508112 U CNU2008200508112 U CN U2008200508112U CN 200820050811 U CN200820050811 U CN 200820050811U CN 201233847 Y CN201233847 Y CN 201233847Y
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- CN
- China
- Prior art keywords
- ratchet
- relay
- circuit
- button
- control circuit
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a switching control circuit of an alternating-current contactor, which comprises a mechanical switch and a relay circuit. The mechanical switch includes a housing, a button, a driving key, a push ratchet, a ratchet wheel and a stopping reverse ratchet, wherein the button can move up and down relative to the housing; an offsetting spring is mounted between the button and the housing; the button is fixedly connected with the driving key; the side part of the driving key is fixedly connected with one end of the push ratchet; one end of the stopping reverse ratchet is fixed on the housing; a connecting terminal is connected at the end of the stopping reverse ratchet; the push ratchet and the other end of the stopping reverse ratchet are inserted in the tooth spaces of the ratchet wheel; the ratchet wheel is provided with a conductive area and an insulation area which are arranged at intervals; the conductive area of the ratchet wheel is connected with a contact of a relay; when the button is positioned in a pressing position, the driving key pushes an armature of the relay; and the contact is forced to be in a closed position. The relay circuit includes relays connected in parallel with each other, a voltage stabilizing circuit, a filter capacitor, and a bridge rectification circuit. The utility model performs the functions of controlling the alternating-current contactor by the single button and mounting the alternating-current contactor by a single wire.
Description
Technical field
The utility model relates to a kind of ON-OFF control circuit, relates in particular to a kind of ON-OFF control circuit of A.C. contactor.
Background technology
General A.C. contactor control button is made up of the pair of buttons switch at present: one is used for opening, and one is used to stop, and carry out two point operations, complicated operation.Need utilize the auxiliary contact of A.C. contactor when mounted, many lines back and forth between the A.C. contactor button, the line complexity.Even state-of-the-art integrated combination button can not the single line installation not have fault indication function yet,, blindly restart and the expansion fault to cause damage in case disorderly closedown is beyond recognition.
Summary of the invention
The purpose of this invention is to provide a kind of solid wire that carries out the ac contactor control circuit that the single switch push-botton operation can realize that A.C. contactor opens or cuts out is installed.
For achieving the above object, the invention provides following technical scheme:
Ac contactor control circuit,
It comprises
Mechanical switch, it comprises shell, button, driving key, promotion ratchet, ratchet and ends anti-ratchet, but the button opposite shell move up and down, between button and the shell back-moving spring is housed; Button is fixedlyed connected with driving key, an end of the fixedly connected promotion ratchet of the sidepiece of driving key; End anti-ratchet one end and be fixed on the shell, be connected with binding post at this end that ends anti-ratchet; Promote the between cog of ratchet and the other end insertion ratchet that ends anti-ratchet; Ratchet has the conductive region and the insulating regions of space; The conductive region of ratchet connects the contact of following relay; When button was positioned at depressed position, described driving key promotes the armature of relay forced the contact in make position;
Relay circuit, it comprises relay, voltage stabilizing circuit, filter capacitor and bridge rectifier; Described relay, voltage stabilizing circuit, filter capacitor and bridge rectifier parallel connection;
Mechanical switch, relay circuit are connected with A.C. contactor.
This ac contactor control circuit is forced the closing of contact by pressing the button the armature that can make mechanical switch and relay simultaneously, circuit turn-on, the ac contactor coil adhesive, the button spring reset that is reset subsequently, mechanical switch and relay are still closed, and ac contactor coil still keeps attracting state.When pressing the button once more, mechanical switch disconnects, and circuit disconnects, and ac contactor coil discharges.Realized the function of button control A.C. contactor adhesive and release.
Further technical scheme is:
Described ac contactor control circuit also comprises the failure indicating circuit in parallel with the contact of described relay, this failure indicating circuit comprises first diode, first resistance, second electric capacity, second diode and malfunction indicator lamp, described second diode is with in parallel with second electric capacity again after malfunction indicator lamp is connected and form the shunt circuit, and first diode is connected with first resistance and then connected with described shunt circuit.
Malfunction indicator lamp has fault indication function, in case disorderly closedown can come into plain view, avoids blindly restarting and enlarges fault and cause damage.
Description of drawings
Fig. 1 is the circuit diagram of the utility model ac contactor control circuit;
Fig. 2 is the physical structure figure of mechanical switch.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
Referring to Fig. 1, ac contactor control circuit comprises mechanical switch K1, relay circuit and failure indicating circuit.Comprise shell 10, button 1, driving key 2, promote ratchet 5, ratchet 6 and end anti-ratchet 7 referring to this mechanical switch of Fig. 2 K1, but button 1 opposite shell 10 move up and down, between button 1 and the shell 10 back-moving spring 4 is housed; Button 1 is fixedlyed connected with driving key 2, an end of the fixedly connected promotion ratchet 5 of the sidepiece of driving key 2; End anti-ratchet 7 one ends and be fixed on the shell 10, be connected with binding post 9 at this end that ends anti-ratchet 7; Promote the between cog of ratchet 5 and the other end insertion ratchet 6 that ends anti-ratchet 7; Ratchet 6 has the conductive region (black region among the figure) and the insulating regions (white portion among the figure) of space; The conductive region of ratchet 6 connects the contact K2 of relay; When button 1 was positioned at depressed position, driving key 2 promoted the armature of relay, forced contact K2 in make position.
Relay circuit comprises relay J, voltage stabilizing circuit, filter capacitor C1, working indicating and bridge rectifier.Described relay J, voltage stabilizing circuit, filter capacitor C, working indicating and bridge rectifier parallel connection.
Working indicating comprises second resistance R 2 and the working station indicator LED2 of series connection.Voltage stabilizing circuit is made up of 10 diode in series D5-D14, and the quantity of diode can be determined as required.Bridge rectifier is made up of four diode D1-D4.
Mechanical switch K1, relay circuit are connected with A.C. contactor KM.
Above-mentioned ac contactor control circuit also comprises the failure indicating circuit in parallel with the contact of described relay J, this failure indicating circuit comprises the first diode D15, first resistance R 1, second capacitor C 2, second diode DD and the malfunction indicator lamp, and second diode is the 32V diac.The described second diode DD is with in parallel with second capacitor C 2 again after malfunction indicator lamp LED1 connects and form the shunt circuit, and the first diode D15 connects with first resistance R 1 and then connects with above-mentioned shunt circuit.
The above-mentioned ac contactor control circuit course of work is as follows:
In the frame of broken lines of accompanying drawing 1 is external A.C. contactor KM and thermal relay KH.D1-D4 among the figure is that alternating current is become direct current for the bridge rectifier effect.Bridge rectifier, filter capacitor C1 and voltage stabilizing circuit have been formed bleeder circuit provides path to major loop, and forming the 6V pressure drop at the voltage stabilizing circuit two ends provides 6V to keep voltage to relay J, machinery K switch 1 is connected the position that is locked in out when pressing the button 1, driving key 2 promotes the armature of relay J and forces contact K2 closure, the bridge rectifier that the electric current of A.C. contactor KM is formed along diode D1-D4 is given filter capacitor C1 charging, because of the enough big both end voltage of C1 is 0, the circuit internal resistance is very little, the smooth adhesive of A.C. contactor KM, along with the raising of filter capacitor C1 both end voltage surpasses 6V, the voltage stabilizing circuit that diode D5-D14 forms is switched on, electric current from voltage stabilizing circuit by and form the 6V pressure drop thereon, this voltage is the voltage of keeping of relay J, this circuit also is a voltage stabilizing circuit, no matter main circuit voltage height and size of current can both maintain 6V to the relay J both end voltage, so this ac contactor control circuit has certain versatility to the A.C. contactor of multiple voltage and various models.Second resistance R 2 and working station indicator LED2 are for opening indicator light circuit, malfunction indicator lamp LED1, second capacitor C 2, the second diode DD, first resistance R 1, the first diode D15 forms failure indicating circuit, wherein the second diode DD is the 32V diac, first resistance R 1 is a high resistance measurement, failure indicating circuit is in parallel with the contact K2 of relay J, malfunction indicator lamp LED1 is not worked by short circuit when armature forces contact K2 closed, mechanical switch K1 disconnects back malfunction indicator lamp LED1 and does not also work, when mechanical switch K1 connects, electric current constituted path along KM and K1 when contact K2 disconnected, by the first diode D15 rectification after first resistance R 1 gives second capacitor C 2 chargings, the second diode DD triggers after voltage is charged to more than the 32V, the second diode DD conducting, discharge by malfunction indicator lamp LED1 luminous tube, malfunction indicator lamp LED1 is lighted, because first resistance R 1 obtains the needs that very big electric current does not satisfy 2 chargings of second capacitor C, second capacitor C, 2 both end voltage descend immediately, the second diode DD ends, second capacitor C 2 is recharged once more, so the circulation indicator light is just flickering, the alerting fault.
Certainly, the utility model ac contactor control circuit also can have other distortion.In a word, doing conspicuous change according to the prompting of the foregoing description, and other every changes that do not break away from the utility model essence, all should be included within the described scope of claim.
Claims (6)
1, ac contactor control circuit,
It is characterized in that, comprise
Mechanical switch, it comprises shell, button, driving key, promotion ratchet, ratchet and ends anti-ratchet, but the button opposite shell move up and down, between button and the shell back-moving spring is housed; Button is fixedlyed connected with driving key, an end of the fixedly connected promotion ratchet of the sidepiece of driving key; End anti-ratchet one end and be fixed on the shell, be connected with binding post at this end that ends anti-ratchet; Promote the between cog of ratchet and the other end insertion ratchet that ends anti-ratchet; Ratchet has the conductive region and the insulating regions of space; The conductive region of ratchet connects the contact of following relay; When button was positioned at depressed position, described driving key promoted the armature of relay, forced the contact in make position;
Relay circuit, it comprises relay, voltage stabilizing circuit, filter capacitor and bridge rectifier; Described relay, voltage stabilizing circuit, filter capacitor and bridge rectifier parallel connection;
Mechanical switch, relay circuit are connected with A.C. contactor.
2, ac contactor control circuit according to claim 1,
It is characterized in that:
Described ac contactor control circuit also comprises the failure indicating circuit in parallel with the contact of described relay, this failure indicating circuit comprises first diode, first resistance, second electric capacity, second diode and malfunction indicator lamp, described second diode is with in parallel with second electric capacity again after malfunction indicator lamp is connected and form the shunt circuit, and first diode is connected with first resistance and then connected with described shunt circuit.
3, ac contactor control circuit according to claim 1 and 2,
It is characterized in that:
Described relay circuit also comprises the working indicating in parallel with described relay, voltage stabilizing circuit, filter capacitor and bridge rectifier, and described working indicating comprises second resistance and the working station indicator of series connection.
4, ac contactor control circuit according to claim 3,
It is characterized in that:
Described voltage stabilizing circuit is made up of a plurality of diode in series.
5, ac contactor control circuit according to claim 4,
It is characterized in that:
Described bridge rectifier is made up of four diodes.
6, ac contactor control circuit according to claim 5,
It is characterized in that:
Second diode is the 32V diac.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200508112U CN201233847Y (en) | 2008-07-17 | 2008-07-17 | AC contact control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200508112U CN201233847Y (en) | 2008-07-17 | 2008-07-17 | AC contact control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233847Y true CN201233847Y (en) | 2009-05-06 |
Family
ID=40620234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200508112U Expired - Fee Related CN201233847Y (en) | 2008-07-17 | 2008-07-17 | AC contact control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233847Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262980A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Multi-pole direct current contactor |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
-
2008
- 2008-07-17 CN CNU2008200508112U patent/CN201233847Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262980A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Multi-pole direct current contactor |
| CN102262980B (en) * | 2011-01-11 | 2013-05-15 | 沈阳二一三控制电器制造有限公司 | Multi-pole direct current contactor |
| CN113782397A (en) * | 2021-11-11 | 2021-12-10 | 常州平川飞耀电气有限公司 | Control device of high-voltage switch |
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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: 20090506 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |