CN2308161Y - Electric-saving contactor - Google Patents
Electric-saving contactor Download PDFInfo
- Publication number
- CN2308161Y CN2308161Y CN 97219749 CN97219749U CN2308161Y CN 2308161 Y CN2308161 Y CN 2308161Y CN 97219749 CN97219749 CN 97219749 CN 97219749 U CN97219749 U CN 97219749U CN 2308161 Y CN2308161 Y CN 2308161Y
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- China
- Prior art keywords
- coil
- link
- economize
- parallel
- contactor
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Abstract
The utility model relates to an electric-saving contactor which comprises an iron core, a coil, a contact and a power saving circuit. The power saving circuit comprises a motion attracting link and a voltage-reducing holding link. The motion attracting link is composed of a converting switch T, a resistance R and a diode D1 which are connected in series. The voltage-reducing holding link is composed of capacitance C. After the motion attracting link and the voltage-reducing holding link are connected in parallel, and the motion attracting link and the voltage-reducing holding link are connected with an M terminal of a coil CJ. After a closing button Q< A > and a breaking button Q< T > are connected in series, the closing button Q< A > and the breaking button Q< T > are connected with an N terminal of the coil CJ. Both ends of the coil CJ are connected with a diode D2 in parallel. The utility model has the advantages of simple manufacturing technique and good reliability.
Description
The utility model relates to a kind of economize on electricity contactor.
A.C. contactor is a kind of control low-voltage electrical apparatus far away for frequent operation, is widely used in electric drive, the automatic control system.In use, the adhesive of ac contactor electromagnetic system armature and electromagnetic system are kept operation all will have certain function, the homemade rated current of China is ten watts, tens watts in the active power of its electromagnetic system of A.C. contactor more than 100A, or even more than 100 watt, in actual applications, such power consumption is very considerable.In order to solve the big problem of ac contactor electromagnetic system power consumption, people have adopted the method for A.C. contactor DC operation, design the multiple contactor that has power save circuit, as a kind of economize on electricity contactor, comprise iron core, coil, contact, power save circuit, coil is by coil N
1With coil N
2Constitute the rectifier D of power save circuit and coil N
1, coil N
2Form the closed-loop path, an end of rectifier D input with after change over switch is connected again with coil N
1Parallel connection connects external power at last altogether.The power save circuit of this economize on electricity contactor will relate to two coil N
1And N
2, and cause complete machine manufacturing process complexity, poor reliability.
The purpose of this utility model is intended to overcome the above-mentioned shortcoming that existing economize on electricity contactor technology exists, and provides that a kind of complete machine manufacturing process is simple, the economize on electricity contactor of good reliability.
The technical scheme that realizes the utility model purpose is such.A kind of economize on electricity contactor comprises iron core, coil, contact, power save circuit, and power save circuit comprises inhales rotating ring joint and step-down sticking link, inhales the rotating ring joint by change over switch T, resistance R and diode D
1Serial connection forms, and step-down sticking link is made of capacitor C, is connected the M end of coil CJ after both parallel connections; Close push button Q
AWith disjunction button Q
TBe connected the N end of coil CJ after the series connection, diode D
2Be connected in parallel on the two ends of coil CJ, D
2The N end of anode and coil CJ be connected.
Aforesaid economize on electricity contactor is at the two ends of coil CJ piezo-resistance Rv in parallel.
Aforesaid economize on electricity contactor, change over switch T comprise shell, be arranged on the fixed contact on the shell and be arranged on the push rod moving contact that can just join mutually with fixed contact, is provided with stage clip between push rod bottom and the shell.
Fig. 1 is the utility model embodiment power save circuit fundamental diagram.
Fig. 2 is the utility model embodiment change-over switch arrangement schematic diagram.
Introduce embodiment of the present utility model below in conjunction with accompanying drawing.
Economize on electricity the as shown in Figure 1 power save circuit of contactor, wherein: CJ is a coil, T is a change over switch, Q
ABe close push button, Q
TBe the disjunction button, resistance R, diode D
1And change over switch T connects and formation is inhaled the rotating ring joint, and capacitor C constitutes the sticking link separately, is connected the M end of CJ after both parallel connections, Q
AWith Q
TBe connected the N end of CJ after the series connection, also be parallel with diode D at M, the N two ends of CJ
2The operation principle of this power save circuit is: during the work of (one) economize on electricity contactor, press Q
A, at this moment as power supply A
1End is for positive potential, and then the electric current that provides of power supply is through D
1Provide Rectified alternating current to CJ after the rectification; As power supply A
2End is positive potential, D
2Play the afterflow effect; (2) moving behind certain position when the suction of economize on electricity contactor iron core, T disconnects, and C seals in the circuit, and C at this moment its essence is decompression capacitor, and D
2The afterflow effect of playing, power supply provides Rectified alternating current through C to CJ, makes the iron core sticking under low-voltage, to reach the purpose of economize on electricity; (3) press Q
T, the CJ dead electricity, economize on electricity contactor iron core is released effect.Rv is a piezo-resistance among the figure, and it is connected in parallel on the two ends of CJ, CJ is played the effect of overvoltage protection.
Change over switch T as shown in Figure 2, wherein: the 1st, shell, the 2nd, push rod, the 3rd, fixed contact, the 4th, moving contact, the 5th, stage clip, down push rod 2, then push rod 2 drives moving contacts 4 it is separated with fixed contact 3, the closure of fixed contact 3 and moving contact 4 with separate, finished the switch motion of change over switch T.And push rod 2 on correct with the iron core moving part of the contactor that economizes on electricity and contact, and pushed by it, and promptly get electricly as the coil CJ of economize on electricity contactor, iron core is inhaled moving to a certain degree the time, the moving part of iron core pushes away the push rod 2 of this change over switch, and fixed contact 3 is separated with moving contact 4.Among the figure the 6, the 7th, the prerotation vane of push rod 2, the 8th, prerotation vane spring, the 9th, arc-extinguish chamber.
Above-mentioned power save circuit and change over switch are used for the existing various model A.C. contactors of China.
The utility model only needs single coil to get final product owing to designed suction rotating ring joint and sticking link in power save circuit, and circuit is simple, causes the complete machine manufacturing process simple, and good reliability; In addition, the structure of its change over switch T is also very simple.
Claims (3)
1, a kind of economize on electricity contactor comprises iron core, coil, contact, power save circuit, it is characterized in that power save circuit comprises that inhaling rotating ring saves and step-down sticking link, inhales the rotating ring joint by change over switch T, resistance R and diode D
1Be in series, step-down sticking link is made of capacitor C, is connected the M end of coil CJ after both parallel connections; Closure meets button Q
AWith disjunction button Q
TBe connected the N end of coil CJ after the series connection; Diode D
2Be connected in parallel on the two ends of coil CJ, D
2The N end of anode and coil CJ be connected.
2, economize on electricity contactor according to claim 1 is characterized in that piezo-resistance Rv is connected in parallel on the two ends of coil CJ.
3, economize on electricity contactor according to claim 1 and 2 is characterized in that change over switch T comprises shell, is arranged on the fixed contact on the shell and is arranged on the push rod moving contact that can just join mutually with fixed contact, is provided with stage clip between push rod bottom and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219749 CN2308161Y (en) | 1997-07-02 | 1997-07-02 | Electric-saving contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97219749 CN2308161Y (en) | 1997-07-02 | 1997-07-02 | Electric-saving contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308161Y true CN2308161Y (en) | 1999-02-17 |
Family
ID=33935649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97219749 Expired - Fee Related CN2308161Y (en) | 1997-07-02 | 1997-07-02 | Electric-saving contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308161Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466134C (en) * | 1999-07-12 | 2009-03-04 | 三菱电机株式会社 | Electromagnetic contactor |
-
1997
- 1997-07-02 CN CN 97219749 patent/CN2308161Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466134C (en) * | 1999-07-12 | 2009-03-04 | 三菱电机株式会社 | Electromagnetic contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Lijie Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |