CN206322607U - With the mechanical self-locking suspension member of A.C. contactor adapted - Google Patents

Abstract

With the mechanical self-locking suspension member of A.C. contactor adapted, it is related to the energy saver of A.C. contactor.Including auxiliary contact group, dragging track, crochet hook and holddown spring；Auxiliary contact group is provided with left cover and right cover plate, provided with movable contact seat in left cover and right cover plate, movable contact group and SR are provided with movable contact seat, the front and rear of movable contact seat is provided with the preceding breakback contact stand and rear breakback contact stand for being used for being engaged with movable contact group, preceding breakback contact stand and rear breakback contact stand are equipped with stationary contact group, and the on off operating mode of stationary contact group and movable contact group is by A.C. contactor control.Movable contact seat is provided with dragging track, and dragging track is in by bottom to topShape closed annular groove is formed, and crochet hook is provided between dragging track and left cover or right cover plate, and crochet hook coordinates with dragging track to be slided to realize self-locking or unblock.It is simple for structure, with low cost, easy to use, without transforming A.C. contactor, fully rely on mechanical self-locking and realize energy-conservation, can be acted with A.C. contactor synchronous coordination.

Description

With the mechanical self-locking suspension member of A.C. contactor adapted

Technical field

The utility model is related to the energy saver of A.C. contactor, more particularly, to a kind of and A.C. contactor adapted machine Tool formula self-locking suspension member.

Background technology

A.C. contactor is one of most frequently used low-voltage electrical apparatus, is mainly used in real to the electric wiring of relatively large load Now closure and disjunction control.The power of every A.C. contactor autophage is about 30~500W, and usage amount has surpassed at present for China 700,000,000 (year increases about 100,000,000) are crossed, the whole world there are about 45~5,000,000,000, billions of degree electricity are consumed daily.It can be seen that, A.C. contactor It is electricity consumption " "big tiger" ".Therefore, people are studied for a long period of time.

China Patent Publication No. CN1107963C " mechanical self-latching type ac contact means ", it use mechanical self-locking and Electromagnetism unlocking manner, the contacts status of A.C. contactor is locked using more complicated mechanical mechanism, to reach energy-conservation purpose；It lacks Point is that structure is relative complex, including uses major and minor two groups of electromagnet, electromagnetism release circuit and mechanical mechanism, and cost Height, has not yet been viewed the popularization and application of the patented product commercially at present.

China Patent Publication No. CN2388703 " saving device for alternating current contactor ", it is that friendship is locked using DC circuit magnetic loop The contact closure condition of contactor is flowed, energy-conservation purpose is reached；It has the disadvantage that DC circuit magnetic loop can produce remanent magnetism, may go out when power is off Existing its moving armature and static gag bit can not be separated, and reduce the reliability of A.C. contactor switching, or even can not normal work.

China Patent No. ZL200820302979.8 " saving device for alternating current contactor ", it passes through AC contactor touch head machine Structure moves produced mechanical energy to realize the locking of its contact closure condition；During disconnection, it is produced using another group of electromagnet Electromagnetic energy promote mechanical release mechanism to recover the original state of A.C. contactor, it has the disadvantage that structure is relative complex, disconnects Action is delayed, and mechanical mechanism is easily stuck, poor reliability.

China Patent No. ZL 201620369956.3 " mechanically from lockout contactor ", it overcomes to a certain extent The shortcoming of foregoing invention, but need also exist for transforming A.C. contactor, and the self-locking device of A.C. contactor side is installed on, logical Electric moment is likely to occur dynamic unbalance, and influences the switching of self-locking and unblock.

In a word, at present on the power-economizing method and its device of A.C. contactor, it is required for changing the structure of A.C. contactor, The increase of production process and production cost is not only resulted in, and can influence the reliability of A.C. contactor to varying degrees, This is to restrict the main cause that A.C. contactor is also put on market without ripe energy-conserving product.

The content of the invention

The purpose of this utility model is to provide one kind and directly outer can be suspended on A.C. contactor, it is to avoid because of transformation ac contactor The series of problems that device is brought, it is possible to resolve the A.C. contactor energy-efficient contradiction between reliably working is matched somebody with somebody with A.C. contactor Mechanical self-locking suspension member.

To achieve the above object, the utility model is adopted the following technical scheme that：

A kind of mechanical self-locking suspension member with A.C. contactor adapted, including auxiliary contact group, dragging track, crochet hook and pressure Tight spring；

The auxiliary contact group, which is provided with left cover and right cover plate, left cover and right cover plate, is disposed with movable contact seat, moves Movable contact group and SR are provided with contact shoe, before being provided with before and after movable contact seat for being engaged with movable contact group Breakback contact stand and rear breakback contact stand；The preceding breakback contact stand and rear breakback contact stand are equipped with stationary contact, stationary contact group and movable contact The on off operating mode of group is by A.C. contactor control；At least side of movable contact seat is provided with dragging track, dragging track with Crochet hook is set between left cover or right cover plate, and the crochet hook is slidably matched with dragging track, for realize between contact sets from Lock and unblock；The crochet hook upwards in motion process, passes through its cunning following the contact adhesive of A.C. contactor moving contact group Row orbital position realizes the self-locking between movable contact group and stationary contact group, the A.C. contactor electromagnet is still protected when power is off Hold the working condition (abbreviation self-locking) of its contact sets, described crochet hook is following the movable contact group of A.C. contactor to depart from and downward In motion process, realized again by the diverse location of its dragging track from the switching for being locked into unblock certainly, make A.C. contactor Original state (referred to as resetting) is returned between movable contact group and stationary contact group.

Further：

It is preferred that, the dragging track is in by bottom to topShape closed annular groove is formed, describedShape closed annular Groove is made up of corresponding step and gradient section, describedThe minimum point (bottom) of shape closed annular groove be defined as initial point step and Unblock point step (abbreviation initial point and unblock point, similarly hereinafter), the dragging track is inMinimum point (recess) definition at the top of type It is described for latching point step (abbreviation latching point, similarly hereinafter)Peak of the shape closed annular groove between unblock point and latching point Right relay point step and left relay point step (the right relay point of abbreviation and left relay point, similarly hereinafter) are respectively defined as, on initial point, the right side Self-locking starting gradient section, self-locking, which are respectively equipped with, between relay point, adjacent 2 points of latching point and left relay point completes gradient section, solution Lock starting gradient section and unblock complete gradient section, describedShape closed annular groove is used to protect using corresponding step and pits rampway structure Card crochet hook can only be moved when following the movable contact group action of A.C. contactor along single (clockwise or counterclockwise) direction, with Avoid producing misoperation in self-locking or unblock.

It is preferred that, contact pressure spring is provided between the movable contact group and stationary contact group in the auxiliary contact group, institute The crochet hook stated from initial point move to right relay point (or left relay point) when, the suction-combining force of A.C. contactor will make auxiliary contact group On contact pressure spring occur positive deformation, promote crochet hook to continue to move to latching point from right relay point (or left relay point) Realize self-locking；Described crochet hook from latching point move to left relay point (or right relay point) when, the spring of A.C. contactor recovers Reverse deformation is occurred for the contact pressure spring made in auxiliary contact group by power, promotes crochet hook to continue from left relay point (or right relaying Point) move to initial point realize unblock and reset.The deformation of contact pressure spring and variable, can be according to A.C. contactor not Same type is adjusted in right amount, synchronous to ensure the action between mechanical self-locking suspension member and A.C. contactor.

It is preferred that, the holddown spring for avoiding crochet hook from being come off from dragging track is provided between the crochet hook and casing.

It is preferred that, the crochet hook is general in fixed zigzag or π fonts is easy to, and can also use can follow movable contact The other shapes of group motion.

It is preferred that, the left cover wears fixed using fastening screw with right cover plate and is scheduled on preceding breakback contact stand and rear breakback contact stand On.

It is preferred that, the movable contact seat is provided with SR, when exterior power supply plant failure and A.C. contactor and machine When tool formula self-locking suspension member is still all in self-locking state, make A.C. contactor and mechanical self-locking suspension member by pressing SR On all contact sets states carry out manual reset.

It is preferred that, the frame mode of the mechanical self-locking suspension member, A.C. contactor can be directly suspended to outside is used to install (top) realizes energy-conservation on the rank frame of auxiliary contact group, and can retain auxiliary contact group of A.C. contactor and application thereof.

It is preferred that, the auxiliary contact group can directly use the auxiliary contact group of A.C. contactor, may be designed in solely The outer suspension member of A.C. contactor is stood on, while also not limiting to the energy-conservation applied to A.C. contactor.

A kind of method of work of above-mentioned mechanical self-locking suspension member with A.C. contactor adapted, is comprised the steps of：

(1) crochet hook described in is located at the initial point of dragging track, switches on power moment, the electromagnet in A.C. contactor It is powered and produces electromagnetic force, described electromagnetic force overcomes the reaction force adhesive armature of back-moving spring, and described armature is moved downward, So as to drive the described relative crochet hook of movable contact seat to move downward, while described crochet hook is upward along dragging track from initial point Right relay point or left relay point are moved to, now corresponding movable contact group is in contact or is separated with stationary contact group, i.e., dynamic circuit connector is touched Point group closure, it is dynamic to open contact sets disconnection, into the preparatory stage of self-locking；

(2) during deenergization, the electromagnet power-off in described A.C. contactor loses electromagnetic force, and described armature is multiple The lower motion upwards of restoring force effect of position spring, drives the described relative crochet hook of movable contact seat to be moved upwards, while described Crochet hook move downwardly to latching point along dragging track from right relay point or left relay point, now corresponding movable contact group with Stationary contact group keeps the state of step (1), completes self-locking.Now, the electromagnet of A.C. contactor is powered without power supply, completely according to Step by crochet hook in latching point is locked, and all contact sets on A.C. contactor and mechanical self-locking suspension member is kept its work State；

(3) electromagnet being again switched in power supply moment, A.C. contactor, which is powered, produces electromagnetic force, and described electromagnetism is made every effort to overcome The reaction force of back-moving spring adhesive armature again is taken, described armature is moved downward, so as to drive the relative crochet hook of movable contact seat Move downward, while described crochet hook moves up to left relay point or right relay point along dragging track from latching point, now Corresponding movable contact group keeps the state of step (1) with stationary contact group, into the preparatory stage of unblock；

(4) when being again off power supply, the electromagnet power-off in described A.C. contactor loses electromagnetic force, described armature Moved upwards under the active force of back-moving spring, so as to drive movable contact seat to be moved upwards relative to crochet hook, while described hook Pin moves downwardly to unblock point along dragging track from left relay point or right relay point, now movable contact group with stationary contact group by phase Contact is changed into being separated or is changed into being in contact from phase separation, i.e., moving together contact group by closed reduction to disconnect, it is dynamic open contact sets by Disconnection is reset to closure, completes unblock, all contact sets on A.C. contactor and mechanical self-locking suspension member is all resetted；

(5) when exterior power supply plant failure, and A.C. contactor and mechanical self-locking suspension member are still all in self-locking state When, by pressing the SR on mechanical plug-in latch fitting, to all tactile on A.C. contactor and mechanical self-locking suspension member Point group carries out manual reset.

Compared with prior art, the utility model has the advantages that：

(1) the utility model makes its crochet hook by dragging track and mechanical self-latching principle using the gradient and step of slideway Can only be along unidirectional motion, and the working condition for locking by corresponding step (point) and releasing A.C. contactor, with Misoperation or action failure are effectively prevented, reliability is high.

(2) mechanical self-locking suspension member of the present utility model is entering the self-locking stage, and the electromagnet of A.C. contactor is without consumption The working condition of all contact sets can be remained in that, relative to conventional AC contactor up to 95%, obvious energy conservation in energy-conservation.

(3) simple structure of the present utility model, no matter in production technology and production cost, or in use occasion and convenient Property aspect, all with unique advantage, plug and play is to take effect.

(4) the utility model is except energy-efficient, outside heating, noise and the electromagnetic radiation for effectively reducing A.C. contactor, The service life of A.C. contactor can also be extended.

(5) the utility model is not required to transform A.C. contactor, and can retain the application method and its characteristic of A.C. contactor, Install and use very convenient.

Brief description of the drawings

Fig. 1 is the utility model example structure schematic diagram.

Fig. 2 is Fig. 1 exploded perspective view.

Fig. 3 is Fig. 1 the first profile.

Fig. 4 is Fig. 1 the second profile.

Fig. 5 is the dragging track structural representation in Fig. 3.

Fig. 6 is the scheme of installation of the utility model embodiment and A.C. contactor.

In Fig. 1~6, each mark is represented respectively：The mechanical self-locking suspension members of A-, B- A.C. contactors, 1- left covers, 2- pressures Tight spring, 3- crochet hooks, 4- upper cover plates, 5- dragging tracks, 51- initial points (are unlocked a little), and 52- self-lockings complete gradient section, and 53- is right Relay point, 54- self-lockings starting gradient section, 55- latching points, 56- unblock starting gradient sections, the left relay points of 57-, 58- unblocks are completed It is quiet after gradient section, 59- unblock points (i.e. initial point), 6- stationary contact groups, 7- movable contacts seat, 8- right cover plates, 9- fastening screws, 10- Breakback contact stand before contact shoe, 11-, 12- contact pressure springs, 13- movable contact groups, 14- SRs.

Embodiment

Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model.

Referring to Fig. 1~6, a kind of mechanical self-locking suspension member A with A.C. contactor adapted, including auxiliary contact group (stationary contact Point group 6 and movable contact group 13), dragging track 5, crochet hook 3 and holddown spring 2；Described auxiliary contact group is provided with the He of left cover 1 It is disposed with right cover plate 8, described left cover 1 and right cover plate 8 on movable contact seat 7, described movable contact seat 7 and is provided with movable contact The preceding stationary contact for being engaged with movable contact group 13 is provided with before and after group 13 and SR 14, described movable contact seat 7 Seat 11 and rear breakback contact stand 10, described preceding breakback contact stand 11 and rear breakback contact stand 10 are equipped with stationary contact group 6, described stationary contact The on off operating mode of point group 6 and movable contact group 13 is controlled by A.C. contactor B.In described auxiliary contact group, described is dynamic tactile At least side of point seat 7 is provided with dragging track 5, and described dragging track 5 is in by bottom to topShape closed annular groove (see Fig. 5) formed, it is describedShape closed annular groove originates gradient section 52, right relay point by initial point 51 or unblock point 59, self-locking 53rd, self-locking completes gradient section 54, latching point 55, unblock starting gradient section 56, left relay point 57 and unblock and completes the structure of gradient section 58 Into describedShape closed annular groove be set to different steps and gradient section be used for ensure crochet hook can only along it is single (clockwise or Direction is moved counterclockwise), and crochet hook 3, described crochet hook 3 are provided between described dragging track 5 and left cover 1 or right cover plate 8 One end be connected with left cover 1 or right cover plate 8 and play fixation, the other end of described crochet hook 3 is slided with dragging track 5 Self-locking and unblock effect are played in cooperation, and described crochet hook 3 is moved following the adhesive of movable contact group 13 of auxiliary contact group upwards During complete movable contact group by the unblock point 51 of dragging track 5, right relay point 53 (or left relay point 57), latching point 55 Self-locking between 13 and stationary contact group 6, makes the electromagnet of A.C. contactor remain in that the work of all contact sets when power is off State (abbreviation self-locking)；Crochet hook 3 follow the movable contact group of auxiliary contact group to depart from and during moving downward, by sliding rail The latching point 55 in road 5, left relay point 57 (or right relay point 53), finally return to unblock point 51, complete from being locked into cutting for unblock certainly Change, make to return to original state (referred to as resetting) between the movable contact group 13 of A.C. contactor and stationary contact group 6.

In the present embodiment, contact pressure spring 12 is provided between described movable contact group 13 and stationary contact group 6, it is described Crochet hook 3 from initial point 51 move to right relay point 53 (or left relay point 57) when, the contact force in auxiliary contact group will be made Positive deformation occurs for spring 12, promotes crochet hook 3 to continue to move to latching point 55 from right relay point 53 (or left relay point 57) and complete Self-locking；Described crochet hook 3 from latching point 55 move to left relay point 57 (or right relay point 53) when, the contact made on contact is pressed Reverse deformation occurs for power spring 12, promote crochet hook 3 continue to move to initial point 51 from left relay point 57 (or right relay point 53) it is complete Resetted into unblock.The deformation of contact pressure spring 12 and variable, can in right amount be adjusted according to A.C. contactor B different type Section, it is synchronous with the action between A.C. contactor B to ensure mechanical self-locking suspension member A.

The holddown spring for avoiding crochet hook 3 from being come off from dragging track 5 is provided between described crochet hook 3 and left cover 1 2, described crochet hook 3 is general in fixed zigzag or π fonts is easy to, and can also use can follow what movable contact group 13 was moved Other shapes.

The left cover 1 is fixed on preceding breakback contact stand 11 and rear breakback contact stand 10 with right cover plate 8 with fastening screw 9.

The movable contact seat upper 7 is provided with SR 14, when exterior power supply plant failure and A.C. contactor B and machinery When formula self-locking suspension member A is still all in self-locking working condition, by pressing SR 14, make on A.C. contactor B and suspension member A All contact sets carry out manual reset.

During installation, the mechanical self-locking suspension member A uses plug-in mode, and being directly inserted into A.C. contactor B is used to install auxiliary (see Fig. 6) is helped on the rank frame of contact sets to realize energy-conservation, and it is (described to retain A.C. contactor B auxiliary contact group and application thereof Mechanical self-locking suspension member A be not limited to auxiliary contact group using A.C. contactor B, do not limit to applied to A.C. contactor yet Energy-conservation).

The above-mentioned mechanical self-locking suspension member A with A.C. contactor adapted method of work is as follows：

(1) it is located in the crochet hook 3 at the initial point 51 of dragging track 5, connects (odd number) power supply moment, ac contactor Electromagnet (containing electromagnet) in device B, which is powered, produces electromagnetic force, and electromagnetic force overcomes the reaction force adhesive armature of back-moving spring, holds in the mouth Iron is moved downward, so as to drive the relative crochet hook 3 of described movable contact seat 7 to move downward, while the crochet hook 3 is along dragging track 5 move up to right relay point 53 or left relay point 57 from initial point 51, now corresponding movable contact group 13 and the phase of stationary contact group 6 Contact is separated, i.e., moving together contact is closed, dynamic to open contact disconnection, into the preparatory stage of self-locking.

(2) during deenergization, the electromagnet power-off in described A.C. contactor B loses electromagnetic force, and described armature exists The lower motion upwards of restoring force effect of back-moving spring, drives the described relative crochet hook 3 of movable contact seat 7 to move upwards, while described Crochet hook 3 move downwardly to latching point 55 along dragging track 5 from right relay point 53 or left relay point 57, it is now corresponding dynamic Contact sets 13 keep the state of step (1) with stationary contact group 6, complete self-locking.Now, A.C. contactor B electromagnet is without electricity Source is powered, and the step for fully relying on crochet hook 3 in latching point 55 is locked, and makes the institute on A.C. contactor B and mechanical self-locking suspension member A There are contact sets to keep its working condition.

(3) electromagnet being again switched in (even number) power supply moment, A.C. contactor B, which is powered, produces electromagnetic force, electromagnetism Power overcomes the reaction force of back-moving spring adhesive armature again, and described armature is moved downward, so as to drive described movable contact The relative crochet hook 3 of seat 7 is moved downward, while described crochet hook 3 moves up to left relay point along dragging track 5 from latching point 55 57 or right relay points 53, now corresponding movable contact group 13 keeps the state of step (1) with stationary contact group 6, into unblock Preparatory stage.

(4) when being again off power supply, the electromagnet power-off in described A.C. contactor B loses electromagnetic force, described rank Iron is moved upwards under the active force of back-moving spring, so as to drive the described relative crochet hook 3 of movable contact seat 7 to move upwards, simultaneously Described crochet hook 3 moves downwardly to unblock point 51 along dragging track 5 from left relay point 57 or right relay point 53, now described Movable contact group 13 is changed into being separated from being in contact or is changed into being in contact from phase separation with stationary contact group 6, i.e. moving together contact group is by closing Conjunction is reset to disconnect, and dynamic contact sets of opening are reset to closure by disconnecting, and complete unblock, makes A.C. contactor B and mechanical from lock hanging All contact sets on part A all reset.

(5) when exterior power supply plant failure and A.C. contactor B and mechanical self-locking suspension member A are still all in self-locking state When, by pressing the SR 14 on mechanical plug-in latch fitting A, to the institute on A.C. contactor B and mechanical self-locking suspension member A There are contact sets to carry out manual reset.

(see Fig. 6) in the utility model embodiment, mechanical self-locking suspension member A's is energized to power-off time, can be by button Or with electric impulse signal control, control (lasting be powered) time is not more than 300ms.

Claims (8)

1. the mechanical self-locking suspension member with A.C. contactor adapted, it is characterised in that：Including auxiliary contact group, dragging track, hook Pin and holddown spring；

The auxiliary contact group, which is provided with left cover and right cover plate, left cover and right cover plate, is disposed with movable contact seat, movable contact Movable contact group and SR, the front and rear preceding stationary contact being provided with for being engaged with movable contact group of movable contact seat are provided with seat Point seat and rear breakback contact stand；The preceding breakback contact stand and rear breakback contact stand are equipped with stationary contact, stationary contact group and movable contact group On off operating mode is by A.C. contactor control；At least side of the movable contact seat is provided with dragging track, dragging track and left cover Crochet hook is set between plate or right cover plate, and the crochet hook is slidably matched with dragging track, for realize the self-locking between contact sets and Unblock.

2. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：Described slides Track is in by bottom to topShape closed annular groove is formed, describedShape closed annular groove is by corresponding step and gradient section Constitute, it is describedThe minimum point (bottom) of shape closed annular groove is initial point step and unlocks point step, describedShape is closed It is latching point step to close the minimum point at the top of annular groove, describedShape closed annular groove is being unlocked between point and latching point most High point is respectively right relay point step and left relay point step, in the adjacent of initial point, right relay point, latching point and left relay point Self-locking starting gradient section, self-locking is respectively equipped between 2 points to complete gradient section, unblock starting gradient section and unlock to complete gradient section, DescribedThe step and pits rampway structure of shape closed annular groove make crochet hook when following the movable contact group action of A.C. contactor, only It can move clockwise or counterclockwise, crochet hook coordinates with dragging track to be slided to realize self-locking or unblock.

3. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：Described auxiliary Contact pressure spring is provided between movable contact group and stationary contact group in contact sets.

4. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：Described crochet hook The holddown spring for avoiding crochet hook from being come off from dragging track is provided between casing.

5. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：Described crochet hook In zigzag or π fonts.

6. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：The left cover Fixed is worn with right cover plate using fastening screw to be scheduled on preceding breakback contact stand and rear breakback contact stand.

7. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：Described is dynamic tactile Point seat is provided with the SR for manual reset.

8. according to claim 1 with the mechanical self-locking suspension member of A.C. contactor adapted, it is characterised in that：The auxiliary is touched Head group is directly using the auxiliary contact group or the auxiliary contact group of other independent plug-in setting of A.C. contactor.