CN2297795Y

CN2297795Y - Hand replacement latching relay

Info

Publication number: CN2297795Y
Application number: CN 97202240
Authority: CN
Inventors: 黄拔忠
Original assignee: Winbond Electronics Corp
Current assignee: Winbond Electronics Corp
Priority date: 1997-03-03
Filing date: 1997-03-03
Publication date: 1998-11-18
Anticipated expiration: 2007-03-03

Abstract

The utility model relates to a hand replacement latching relay, comprising a coil used for generating magnetic attraction, a switch which is drawn by the magnetic force of the coil to move the common ground of the switch for transforming the switching-on state of the switch, a springing device which is driven by the switch and the action of external force and can switch over one of two stable states and make the switch maintained in the stable state under the function of no external force, a replacement device which is touched and pressed manually or by the action of other machines to provide the required external force for the springing device to switch over different stable states, and a fixed frame which is used for fixing the coil, the switch and the springing device and simultaneously providing a magnetic loop for generating stronger magnetic attraction.

Description

But the latching relay of hand reser

The utility model relates to a kind of latching relay, but particularly relates to a kind of latching relay of hand reser.

Existing latching relay (Latching Relay), as shown in Figure 1, it comprises: a switch 10, a coil 12.The action of opening (ON) or pass (OFF) of latching relay is to be controlled by the electric current of coil 12.After entering the stable state that opens or closes at latching relay, the electric current of coil 12 can be removed, and when latching relay need change state again, adds on coil 12 that again electric current gets final product.Yet,,,,, also just can't change the state of switch 10 so can't provide electric current again to coil 12 because this moment, entire circuit lost power supply when latching relay is arranged in the state of pass if this type of latching relay is used in power supply when control.At this moment, must provide circuit temporary transient power supply, so just can provide electric current, make the state that latching relay enters out again to coil 12 by monostable votage control switch 14.

Though aforementioned latching relay is at present comparatively general, so it is not having under the situation of power supply, on-state that can't diverter switch, for example general wire telephone or power-supply controller of electric etc.Because in general wire telephone, utilize latching relay as the time spent of forcing broken string, behind the telephone set broken string, promptly can't provide power supply again to coil, so just can't put latching relay more again, same situation also occurs in power-supply controller of electric etc. must restart power supply by extra monostable votage control switch.

In view of this, but the purpose of the utility model promptly is to provide a kind of latching relay of hand reser, enters the state of pass at latching relay, when entire circuit loses power supply again, can be by hand reser, make the state that latching relay is got back to out, restart power supply simultaneously.

Be the preferred embodiment of conjunction with figs. explanation the utility model below, use framework, purpose and the advantage of more clearly illustrating the utility model, wherein:

Fig. 1 is the circuit diagram of expression one existing latching relay structure;

But Fig. 2 a and Fig. 2 b are the open/close state of an embodiment of the latching relay of the hand reser of representing the utility model respectively;

But Fig. 3 a and Fig. 3 b are the open/close state of another embodiment of the latching relay of the hand reser of representing the utility model respectively;

But Fig. 4 a and Fig. 4 b are the latching relay of hand reser in the telephone set of expression utilization the utility model respectively and the graph of a relation of phone hook switch; And

Fig. 5 utilizes the schematic diagram of the latching relay that the magnetic force reflex of reverse winding puts for expression.

In above-mentioned accompanying drawing, components identical or device are represented with identical label.

See also Fig. 2 a and Fig. 2 b, but the latching relay of the hand reser of the utility model comprises: a coil 20, in order to produce magnetic attraction; One switch 22 is subjected to the Magnetic force tracting of aforementioned coil 20, and the common ground of moving switch is with the on-state of alteration switch 22; One breech lock reed 24 is subjected to the drive and the effect that is subjected to an external force of switch 22, changeable arbitrary stable state in two kinds of different stable states, and under the effect of no external force, available so that switch 22 is maintained at this stable state; One puts button 26 again, accepts manually or the pressing of other mechanical actions, use provide aforementioned breech lock reed 24 switch different stable states required outside power; And a fixed mount 28, in order to fixing aforementioned coil 20, switch 22 and breech lock reed 24, provide magnetic loop simultaneously, make the stronger electromagnetic attraction of generation.

As for its manner of execution, be described as follows: when latching relay be under the normal condition with put button 26 again and be pressed after, it is in the state shown in Fig. 2 a, the common ground of switch and the connection of A point, and with the B point for opening circuit.When coil 20 led to electric current, it can produce electromagnetic attraction, with suction shaft 22, makes its common ground leave the A point, throws the B point.The other end of switch 22 is a travel(l)ing rest, and traction breech lock reed 24 forces breech lock reed 24 to eject to other direction, and puts button 26 again and also be ejected together, and reaches another stable state, shown in Fig. 2 b.When breech lock reed 24 was in this stable state, it also led simultaneously stagnant switch 22, so even electric current is removed from coil 20, latching relay still can continue to be maintained in this stable state.

If desire to make the state of latching relay from the replying state of Fig. 2 b to Fig. 2 a, when on coil 20, not having electric current, press and put button 26 again, can force breech lock reed 24 origin-location of rebounding, the common ground that drives switch 22 simultaneously leaves the B point, throw the A point, make latching relay enter the state shown in Fig. 2 a.At this moment, put button 26 again even unclamp, latching relay also can be maintained at this state always.

See also Fig. 3 a and Fig. 3 b, but the latching relay of the hand reser of another embodiment of the present utility model comprises: a coil 20, in order to produce magnetic attraction; One switch 32 is subjected to the Magnetic force tracting of aforementioned coil 20, and the common ground of moving switch 32 is with the on-state of alteration switch 32; One spring 34 is subjected to the drive and the effect that is subjected to an external force of switch 32, changeable arbitrary stable state in two kinds of different stable states, and under the effect of no external force, available so that switch 32 is maintained at this stable state; One puts button 36 again, accepts manually or the pressing of other mechanical actions, use provide aforementioned spring 34 switch different stable states required outside power; And a fixed mount 38, in order to fixing aforementioned coil 20, switch 32 and spring 34, provide magnetic loop simultaneously, make the stronger electromagnetic attraction of generation.Manner of execution as for this embodiment is then similar to last embodiment, be the aforementioned button 36 of putting again be a connecting rod, and this connecting rod directly presses spring.When latching relay is under the state shown in Fig. 3 b, when desire is put spring 34 again, press and put button 36 again, can push spring 34, make it to get back to the state shown in Fig. 3 a.

Aforementioned two embodiment propose with the situation of different elastic devices as embodiment, as long as but the action that various elastic devices can be reached breech lock in mechanism in the application of reality can reach the function of the utility model demand.

In addition, employed in the aforementioned embodiment switch except double-pole switch, also can use single knife switch or multipole switch to replace.

As for various application of the present utility model, be illustrated with regard to the embodiment that utilizes Fig. 2 a and Fig. 2 b below.The utility model can be in order to the latching relay that breaks as the pressure in the telephone set, it uses the common ground COM and the A point of switch, telephone wire power supply when hook switch 40 (hook) is left in utilization comes drive coil (not shown), make the A point and the common ground broken string of latching relay switch, also just make line interrupted, shown in Fig. 4 a.When phone transmitter is put back to hook switch 40, utilize the interlock mechanism of microphone hook, reach the function of hand reser, make the common ground of switch and A point connect, shown in Fig. 4 b.That is telephone set being reverted to decide telephone set by microphone hook switch 40 is hook or off-hook.Wherein, the switch COM on hook switch 40, the latching relay and load resistance RL are for connecting.The utilization that the common ground of the switch on the latching relay and A are ordered, also can be used for power-supply controller of electric (not shown), automatic control circuit where necessary, also can supply with the coil power of latching relay, force the common ground of switch and A point to open circuit, turn off system power supply fully, safety with safeguards system, during the start of user's desire, put button again, the common ground of switch and the connection of A point are got final product as long as press.

In addition, the utilization that the common ground of the switch on the latching relay and B are ordered then can be used for the load of unlatching automatically and manual-lock, for example (not shown) such as the prompting of electricity-saving function or emergency warning lamps.

But the utility model provides the function of hand reser, mainly is to make latching relay in the environment of non-transformer supply fully, still can change its stable state.Certainly, the action of putting again is except hand push button, also can add electromagnetic force, for example add the coil that another oppositely attracts, make electric current be added on reverse sucking coil, with the action of putting again, as shown in Figure 5, its framework comprises: a switch 42, and the common ground of removable switch 42 is with the on-state of alteration switch 42; One first coil 20 in order to produce magnetic attraction, is second state to attract aforementioned switches 42 from first state transformation; One second coil 21 in order to produce magnetic attraction, is first state to attract aforementioned switches 42 from second state transformation; One elastic device 44 is subjected to the drive of switch 42, changeable arbitrary stable state in two kinds of different stable states, and under the effect of no external force, available so that switch 42 is maintained at this stable state; And a fixed mount 48, in order to fixing

aforementioned coil

20 and 21, switch 42 and elastic device 44, provide magnetic loop simultaneously, make the stronger electromagnetic attraction of generation.Moreover, also can change the support that is connected in switch into magnet, change coil and fixed mount into non-magnetic conduction core, utilize the electric current that adds different directions in coil, so that magnet produces the effect that repels each other of inhaling mutually, and reach the function of putting again, and needn't use two groups of coils.

Claims

1. but the latching relay of a hand reser is characterized in that, it comprises:

One coil;

One switch;

One elastic device;

One Redundancy; With

One fixed mount.

2. latching relay as claimed in claim 1, wherein, aforementioned elastic device can be a breech lock reed.

3. latching relay as claimed in claim 1, wherein, aforementioned elastic device can be a spring.

4. latching relay as claimed in claim 1, wherein, aforementioned switches can be hilted broadsword, double-pole or multipole switch.

5. latching relay as claimed in claim 1, wherein, aforementioned Redundancy is a button.

6. latching relay as claimed in claim 1, wherein, the aforementioned fixation frame is non-magnetic conduction substance, and the support that is connected in aforementioned switches changes magnet into.