CN2063688U - Self-lock contactor - Google Patents
Self-lock contactor Download PDFInfo
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- CN2063688U CN2063688U CN 89220329 CN89220329U CN2063688U CN 2063688 U CN2063688 U CN 2063688U CN 89220329 CN89220329 CN 89220329 CN 89220329 U CN89220329 U CN 89220329U CN 2063688 U CN2063688 U CN 2063688U
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- contactor
- bridge
- sucking coil
- self
- ratchet
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Abstract
The utility model relates to a self-lock contactor, which is a contactor, comprising an electromagnetic system, an intermittent motion mechanism which is composed of a draw rod 6, a ratchet driving wheel 5, a following hexagonal ratchet wheel 4, a pressure torsion spring 7, a spring seat 9 and a shaft 8 and a latching mechanism which is composed of a clamp toothed plate 20, a clamp toothed plate base 10, clamp toothed plate spring 21 and a spring seat 22. The power of a sucking coil 16 is switched off after accomplishing connecting or breaking of the circuit, so the sucking coil 16 has the advantages of electricity-saving use, no noise, extended service life of the electromagnetic system and wide electricity-saving range. An n-shaped and a t-shaped controlling circuits which are composed of a starting stopping button (QTA), a capacitor (C) and an electrothermal relay (RJ) can cause the contactor cutting off the circuit when the power supply line is lack of phase, voltage and the overload of electric appliance is in short circuit, so the devices can be protected.
Description
" Self-lock contactor " belongs to technical field of electric appliances.According to " introducing in factory's electric equipment handbook volume two chapter 13 second joint commonly used: CJO-A that " hydraulic and electric engineering publishing house " publishes; CJO-B; CJ8; CJ10; CJ12; CJ12B; CJ20; the sucking coil of CJZ Series AC Contactor and CZO series D.C. contactor is when contactor is worked; all energisings always; after the sucking coil energising contactor adhesive of the CJ12B-S series snap close A.C. contactor that Huatong Switch Factory, Shanghai produces; latching device relies on slide plate to be connected the inclined-plane at snap close and rotates finger lock; sucking coil outage rear catch mechanism remains on locked position; but when threading off, the tripping coil of sucking coil and latching device must be switched on simultaneously.The B Series AC Contactor that Beijing Low Voltage Electrical Appliance Factory produces is pinned by latching relay after installing the sucking coil energising contactor adhesive of WB latching relay additional, the still adhesive of sucking coil outage back contactor must make the coil electricity of latching relay snap close throw off during dropout.
" Self-lock contactor " has only a cover electromagnetic system, can finish the task of connection, maintenance connection and the disconnection of contactor, and sucking coil can cut off the power supply after finishing switching on and off of task, just sucking coil no power when keeping connecting.Therefore " Self-lock contactor " economize on electricity, noiseless during work also can prolong service life of electromagnetic system; simple in structure, easy to manufacture, its control circuit can be designed to the phase shortage in supply line; automatic shutdown circuit when under-voltage and power consumption equipment overload, short circuit can be protected power consumption equipment effectively.
" Self-lock contactor " is that the bridge that touches with existing contactor makes into to separate with armature, the middle adding by pull bar (6), ratchet driving wheel (5), servo-actuated hexagonal ratchet (4), compression torque spring (7), compression torque spring seat (9), and axle (8), the intermittent motion mechanism that forms.Pull bar (6), upper end and ratchet driving wheel (5), link to each other, the middle part with touch bridge side sheet room bearing pin (11) and link to each other, the lower end links to each other with linking (14), servo-actuated hexagonal ratchet (4), an end face have 12 ratchets, the other end is on the shaft shoulder, its corner is that 30 ° of its cylindricals have 6 salient angles, and 6 re-entrant angles are arranged between salient angle.One end of ratchet driving wheel (5) band ratchet is against an end of servo-actuated hexagonal ratchet (4) band ratchet, the other end also links to each other with pull bar (6) against compression torque spring (7), add biside plate in bottom's design of touching bridge (3), side plate respectively has two teeth groove, it is a slotted hole that bearing pin (11) and pull bar (6) middle part connecting place is arranged between biside plate, bearing pin (11) in pull bar (6) slotted hole movably the theoretical length ratchet pin center that equals ratchet driving wheel (5) be corner Sin30 ° of hypotenuse to ratchet driving wheel (5) line of centres, be half of hypotenuse length, also equal the gap between armature (14) and the static iron core (17), but should consider overtravel during actual design, be bearing pin (11) gap between length and armature (14) and the static iron core (17) movably in pull bar (6) slotted hole, should be slightly larger than hypotenuse half.Be positioned at and be screwed the latching device of using latch plate (20), latch panel seat (10), latch flat spring (21) latch flat spring seat (22) to form on " Self-lock contactor " body that touches bridge side plate (3) both sides, latch plate (20) is 3 teeth side by side, middle tooth is facing to the protruding or re-entrant angle of servo-actuated hexagonal ratchet (4) cylindrical, and the tooth on both sides is respectively facing to touching the teeth groove on bridge side plate (3) both sides.
The sucking coil of " Self-lock contactor " (16) energising, be connected (14) to static iron core (17) motion and adhesive, armature (14) drive pull bar (6) and draw on the one hand and touch bridge (3) and make moving contact (1) and the closed connection of fixed contact (2); Draw ratchet driving wheel (5) inverse time to rotate 30 ° on the other hand owing to 30 ° of ratchet effect servo-actuated hexagonal ratchet (4) also inverse time rotations.This moment, the re-entrant angle of servo-actuated hexagonal ratchet (4) cylindrical just in time faced toward the middle tooth of latch plate (20), and the tooth on latch plate (20) both sides is also just in time facing to touching the teeth groove on bridge side plate (3) both sides, and latch plate (20) is mobile and block servo-actuated hexagonal ratchet (4) and touch bridge side plate (3) under the effect of latch flat spring (21).
Sucking coil (16) outage, armature (14) leaves static iron core (17) and resets under the effect of spring (15).Because of pull bar (6) and the corresponding aperture that touches bridge side plate (3) upper pin (11) are slotted holes,, pull bar (6) resets so also being driven by armature (14).Ratchet driving wheel (5) up time revolution under the effect of the drive of pull bar (6) and compression torque spring (7) resets for 30 °.Servo-actuated hexagonal ratchet (4) is blocked and brakes by the tooth in the middle of the latch plate (20).Touch bridge side plate (3) because of being blocked and to reset, so moving contact (1) and the still closed connection of fixed contact (2) at this moment by the tooth on latch plate (20) both sides.
Sucking coil (16) is switched on again, armature (14) moves and adhesive to static iron core (17), armature (14) drives pull bar (6) and draws 30 ° of ratchet driving wheel (5) inverse time rotations, because also the inverse time is rotated 30 ° to ratchet effect servo-actuated hexagonal ratchet (4), servo-actuated hexagonal ratchet (4) is in rotation beginning inverse time, the tooth that the salient angle of its cylindrical heads in the middle of the latch plate (20) moves after progressively, until the cylindrical salient angle center of servo-actuated hexagonal ratchet (4) slightly recess when just in time directly the top is facing to the tooth center in the middle of the latch plate (20) servo-actuated hexagonal ratchet (4) also the inverse time rotation end for 30 °, this moment, the tooth on latch plate (20) both sides also broke away from the teeth groove that touches bridge side plate (3).
Sucking coil (16) cuts off the power supply again, and armature (14) leaves static iron core (17) and resets under the effect of spring (15).Pull bar (6) is also driven by armature (14) and resets.Ratchet driving wheel (5) up time revolution under the effect of the drive of pull bar (6) and compression torque spring (7) resets for 30 °.Servo-actuated hexagonal ratchet (4) is blocked and brakes by the tooth in the middle of the latch plate (20), because of the tooth on latch plate (20) both sides has broken away from the teeth groove that touches bridge side plate (3) both sides, reset under the effect of spring so touch bridge (3), thereby moving contact (1) and fixed contact (2) are disconnected.
In sum.Twice switching electricity of the sucking coil of " Self-lock contactor ", the task of connection and disconnection is connected, remained closed to the closure that just can finish dynamic and static contact." Self-lock contactor " can be designed to the AC/DC contactor of 10A-600A rated current.Its control circuit has " π type " and " T type " two kinds." π type " control circuit is suitable for the power consumption equipment of star-star-delta connection Y-Y-; " T type " control circuit is applicable to the power consumption equipment of star connection.
" π type " control circuit is made up of the sucking coil (ZC) of " Self-lock contactor ", the electric capacity (C) of star connection that starts make contact, break contact and three equivalent of stop button (QTA), thermal relay (RJ).Sucking coil (ZC) is by 180 volts of voltage designs, and the value of electric capacity is calculated as follows: C=(ρ)/(2 π fV
2) (tg φ
1-tg φ
2).The COS φ of sucking coil (ZC) is 0.4, calculates by compensating to 0.6, and simplified formula becomes: the C(microfarad)=60P(kilowatt), P is the active power of sucking coil.During startup, press and start stop button (QTA), sucking coil (ZC) is connected 220 volts of voltages, " Self-lock contactor " moves and the circuit of connection power consumption equipment, because of " Self-lock contactor " pinned by latching device, start stop button (QTA) and reset so can unclamp, sucking coil this moment (ZC) by starting stop button (QTA) break contact and electric capacity (C) common junction of the star connection of the break contact of thermal relay (RJ) and three equivalent connect, voltage equals zero.If when power supply unit phase shortage or power consumption equipment line to line fault, the voltage on the sucking coil (ZC) is the about 180 volts of voltages of the difference of the pressure drop on phase voltage and the electric capacity (C), and " Self-lock contactor " moves and the circuit of cut-out power consumption equipment.If supply line is under-voltage or power consumption equipment when overload, the make contact of thermal relay (RJ) is closed and make sucking coil (ZC) directly connect 220 volts voltages, " Self-lock contactor " action and the circuit of cut-out power consumption equipment.Press startup stop button (QTA) again, sucking coil (ZC) is connected 220 volts of voltages, and " Self-lock contactor " moves and the circuit of cut-out power consumption equipment, unclamps startup stop button (QTA) again and resets.
" T type " control circuit is made up of make contact, the break contact of sucking coil (ZC), startup stop button (QTA) and the thermal relay of " Self-lock contactor ".During startup, press and start stop button (QTA), sucking coil (ZC) is connected 220 volts of voltages, " Self-lock contactor " moves and the circuit of connection power consumption equipment, because of " Self-lock contactor " pinned by latching device, start stop button (QTA) and reset so can unclamp, break contact and the break contact of thermal relay (RJ) and with the power consumption equipment common junction connection of star connection of sucking coil this moment (ZC) by starting stop button (QTA), voltage equals zero.If when supply line's phase shortage or power consumption equipment line to line fault, the voltage on the sucking coil (ZC) is the about 180 volts of voltages of the difference of phase voltage and power consumption equipment pressure drop, and " Self-lock contactor " moves and the circuit of cut-out power consumption equipment.If supply line is under-voltage or power consumption equipment when overload, the make contact of thermal relay (RJ) is closed and make sucking coil (ZC) directly connect 220 volts voltages, " Self-lock contactor " action and the circuit of cut-out power consumption equipment.Press startup stop button (QTA) again, sucking coil (ZC) is connected 220 volts of voltages, and " Self-lock contactor " moves and the circuit of cut-out power consumption equipment, unclamps startup stop button (QTA) again and resets.
Compare with CJO-A, CJO-B, CJ8, CJ10, CJ12, CJ12B, CJ20, CJZ Series AC Contactor and CZO series D.C. contactor, " Self-lock contactor " economizes on electricity more than 90%, noiseless, and the electromagnetic system part can prolong several times service life.Compare with CJ12B-S series snap close A.C. contactor and the B Series AC Contactor that installs the WB latching relay additional; " Self-lock contactor " saved a cover electromagnetic system; reduced cost per unit; enlarged the economize on electricity contactor scope of application more than 3 times; when supply line's phase shortage, the short circuit of under-voltage and power consumption equipment overload; but automatic shutdown circuit can more effectively be protected power consumption equipment.With 40A " Self-lock contactor " is that example is calculated economize on electricity, and its sucking coil apparent power is 32VA, works every day 10 hours, and annual work 360 days can be saved the meritorious and reactive energy of 115 degree the whole year.
Figure of description is the figure that example is drawn with rated current 40A " Self-lock contactor " all.Fig. 1 is a front view, adopts full section, and Fig. 2 is the left view after A-A dissects.All securing members among Fig. 1 and Fig. 2 have only marked center line, and the potter's clay arc-extinguish chamber does not draw, and other parts do not mark because of identical event with existing contactor.Part sequence number among Fig. 1 and Fig. 2 is as follows: moving contact (1), and fixed contact (2) touches bridge (comprising side plate) (3), servo-actuated hexagonal ratchet (4), ratchet driving wheel (5), pull bar (6), compression torque spring (7), axle (8), compression torque spring seat (9), latch panel seat (10), side sheet room bearing pin (11), armature upper pin (12), armature spring seat (13), armature (14), armature spring (15), sucking coil (comprising skeleton) (16), static iron core (17), armature levelling dog screw (18), manual draw ring (19), latch plate (20), latch flat spring (21), latch flat spring seat (22).
Fig. 3 is master, the left view of servo-actuated hexagonal ratchet (4).Fig. 4 is the main left view of ratchet driving wheel (5).Fig. 5 is master, the left view of latch panel seat (10).Fig. 6 is the front view and the B-B of latch plate (20), the left cutaway view of C-C.Fig. 7 is master, the left view that touches bridge (3) epipleural teeth groove part.
Fig. 8-Figure 11 is the fundamental diagram of " Self-lock contactor ", the state when Fig. 8 is sucking coil (16) energising moving contact (1) and the connection of fixed contact (2) closure; Fig. 9 is that sucking coil (16) outage moving contact (1) and fixed contact (2) remain closed the state when connecting; Figure 10 is that sucking coil (16) servo-actuated hexagonal ratchet (4) the cylindrical salient angle of switching on is again backed down latch plate (20), the state when touching bridge side plate (3) teeth groove and breaking away from two heel teeths of latch plate (20); Figure 11 is that sucking coil (16) cuts off the power supply again.Armature (14) and touch bridge (3) and be released and reset and state when moving contact (1) and fixed contact (2) are disconnected.
Figure 12 is " Self-lock contactor " " π type " control circuit figure.Figure 13 is " Self-lock contactor " " T type " control circuit figure.
" Self-lock contactor " all can not increase the device fabrication manufacturing in any one factory that produces contactor.
Claims (2)
1, a kind of control circuit switches on and off the contactor of usefulness, comprise an arc-extinguish chamber and a following body of being with the fixing bottom of Luo Ding that band is fixed with Luo Ding, the arc-extinguish chamber the inside is fixing fixed contact with Luo Ding on body and bridge is touched in an activity, touch moving contact is housed on the bridge bracket, elastic steel sheet, spring and spring base, the Lower Half of touching bridge also links to each other with bearing pin with E shape armature in the body the inside, E shape armature bottom is an E shape static iron core, sucking coil and frame assembly are housed in the middle of it, touch four buffer springs are housed between bridge and the sucking coil skeleton, between sucking coil skeleton and the E shape static iron core rubber blanket is housed, E shape static core is placed on the bottom of body, special card of the present invention is to touch bridge (3) and E shape armature (14) separately, add betwixt and be installed in the axle (8) on the body and be installed in a ratchet driving wheel (5) on these (8), a servo-actuated hexagonal ratchet (4), a compression torque spring (7), an intermittent motion mechanism that compresses torque spring seat (9) and a pull bar (6) composition, to touch bridge (3), the bottom is improved and is added the biside plate that has teeth groove, one bearing pin (11) is arranged between biside plate, this touches and is added with the fixing latch plate (20) by Luo Ding on the body on bridge (3) side plate both sides, latch panel seat (10), latch flat spring (21) and latch flat spring seat (22), the latching device of forming, the top of pull bar (6) links to each other with ratchet driving wheel (5), middle part and touch the interpleural pivot pin of bridge (3) (11), link to each other, the bottom links to each other with armature (14).
2, contactor according to claim 1, it is characterized in that control circuit " π type " is when " Self-lock contactor " keeps adhesive to connect by latching device, the common junction that sucking coil (ZC) and the break contact that starts stop button (QTA) are connected with the electric capacity (C) of the star connection of the break contact of a branch road and thermal relay (RJ) and three equivalent is connected with three-phase line, another branch road is connected with the same circuit mutually of the make contact of thermal relay (RJ), when control circuit " T type " keeps adhesive to connect at " Self-lock contactor " by latching device, sucking coil (ZC) and the break contact that starts stop button (QTA) are connected and the break contact of a branch road and thermal relay (RJ) common junction with the power consumption equipment of star connection is connected, and another branch road is connected with the same circuit mutually of the make contact of thermal relay (RJ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220329 CN2063688U (en) | 1989-12-06 | 1989-12-06 | Self-lock contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220329 CN2063688U (en) | 1989-12-06 | 1989-12-06 | Self-lock contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2063688U true CN2063688U (en) | 1990-10-10 |
Family
ID=4875030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220329 Withdrawn CN2063688U (en) | 1989-12-06 | 1989-12-06 | Self-lock contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2063688U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789333A (en) * | 2010-02-10 | 2010-07-28 | 湖北盛佳电器设备有限公司 | Alternating current contactor with electronic short circuit self-locking function |
| CN101986409A (en) * | 2010-11-19 | 2011-03-16 | 山东卓尔电气有限公司 | Central latching electromagnetic straight operating alternating-current contactor |
| CN105845446A (en) * | 2016-05-13 | 2016-08-10 | 国网新疆电力公司乌鲁木齐供电公司 | Graphene capacitor with overvoltage protection |
| CN108074779A (en) * | 2016-11-10 | 2018-05-25 | 嘉润电气科技有限公司 | A kind of T-shaped armature structure three-phase ac contactor electromagnetic system |
-
1989
- 1989-12-06 CN CN 89220329 patent/CN2063688U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789333A (en) * | 2010-02-10 | 2010-07-28 | 湖北盛佳电器设备有限公司 | Alternating current contactor with electronic short circuit self-locking function |
| WO2011097774A1 (en) * | 2010-02-10 | 2011-08-18 | 湖北盛佳电器设备有限公司 | Alternating current contactor having function of electronic type short circuit self-locking |
| CN101986409A (en) * | 2010-11-19 | 2011-03-16 | 山东卓尔电气有限公司 | Central latching electromagnetic straight operating alternating-current contactor |
| CN105845446A (en) * | 2016-05-13 | 2016-08-10 | 国网新疆电力公司乌鲁木齐供电公司 | Graphene capacitor with overvoltage protection |
| CN105845446B (en) * | 2016-05-13 | 2018-06-29 | 国网新疆电力公司乌鲁木齐供电公司 | A kind of graphene capacitor with overvoltage protection |
| CN108074779A (en) * | 2016-11-10 | 2018-05-25 | 嘉润电气科技有限公司 | A kind of T-shaped armature structure three-phase ac contactor electromagnetic system |
| CN108074779B (en) * | 2016-11-10 | 2024-04-12 | 嘉润电气科技有限公司 | Electromagnetic system of three-phase alternating-current contactor with T-shaped armature structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |