CN201204159Y

CN201204159Y - Bistable locking relay

Info

Publication number: CN201204159Y
Application number: CNU2008200880196U
Authority: CN
Inventors: 姚顺志
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-29
Filing date: 2008-05-29
Publication date: 2009-03-04
Anticipated expiration: 2018-05-29

Abstract

The utility model discloses a bistable locking relay, comprising a case, wherein a main electromagnetic system composed of a main core, a main yoke iron and a main armature wound by a main coil and an assistant electromagnetic system composed of an assistant core, an assistant yoke iron and an assistant armature wound by an assistant coil are arranged in the case; one end of the main yoke iron is connected with a main core, and the other end is bent reversely; a bending bottom frame is provided with the main armature, one end of the assistant yoke iron is connected with the assistant core, and the other end is bent reversely; the bending bottom frame is arranged with the assistant armature, the main armature and the bending bottom of the assistant armature are interlocked through a latching mechanism; the relay is driven by pulse through an electromagnetic and mechanical lock mechanism, after a contact closes or releases, the coil keeps in power-off state. The pulse is used to instantly drive low power dissipation, working state is wattless, electric energy is saved, which is suitable for automatic control of each domestic electric appliance load.

Description

A kind of lock-on relay with bi-stable state

Technical field

The utility model relates to a kind of bistable state electrical equipment components and parts, is a kind of lock-on relay with bi-stable state specifically.

Background technology

Relay is as a kind of electronic control device, and it has control system and Be Controlled system, is applied to usually in the automatic control circuit, and it is actually a kind of " automatic switch " that removes to control big electric current with less current.So in circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit.As shown in Figure 1, there is an iron core that teases coil existing common relay inside, the armature that a slice has spring drawing and supported by fulcrum, and some contacts that are installed on the armature are formed, behind the direct current of the logical upward certain voltage of coil, generate an electromagnetic field, attract armature, with a terminal contacts closure; After disconnecting electricity, spring pull-up armature with the other end closing of contact, has been realized the effect of motor switch.

Though this relay circuit is simple, but have following shortcomings: absorption armature needs the electric current of certain intensity, the suction of the electromagnetic field that this electric current produced will be enough to overcome the pulling force of spring to armature, and keep this state, just must keep energising always, this has just expended a large amount of electric energy, but these electric energy that consume there is no any effect to whole electrical appliance; Contact combination during coil electricity, the contact resets during outage, and once driving can not self-locking, in order to realize that can once drive self-locking then increases latching circuit in relay circuit, peripheral circuits such as bistable circuit, the complexity that an originally simple device is become, and cost improves.

Summary of the invention

Problem to be solved in the utility model just provides a kind of lock-on relay with bi-stable state, has memory function, adopts pulsed drive, and after the closing of contact or release, coil keeps off-position always, the mechanical caging bistable state.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of lock-on relay with bi-stable state, comprise housing, be provided with the main iron core that twines by main coil in the housing, main yoke, main electromagnetic system that main armature is formed and the secondary iron core that twines by secondary coil, secondary yoke, the secondary electromagnetic system that secondary armature is formed, main yoke one end connects main iron core, other end inverse bending, the bending end has set up main armature, secondary yoke one end auxiliary connection iron core, other end inverse bending, the bending end has set up secondary armature, and main armature and secondary armature bending end can lock mutually by latching device.

Described main electromagnetic system and secondary electromagnetic system are inverted secured in parallel mutually in housing.

Described latching device comprises the bonnet lock hole that is located at secondary armature bending termination and is located at the protruding snap close head of main armature bending termination that described snap close head slidably enters bonnet lock hole.

Described main armature one end is provided with collets, and bending part is equipped with stationary spring.

Described secondary armature one end auxiliary connection iron core, bending part is provided with the locking spring that links to each other with housing.

Be provided with two contacts in the described housing, the terminal fixed contact that connects of a contact, another contact is terminal to connect moving contact by the traction of movable contact reed.

The utility model adopts the beneficial effect after the technique scheme: pass through electromagnetism, the mechanical caging structure, in the closing of contact or after discharging, coil can keep off-position always, with pulse moment driving low-power consumption, operating state does not have power consumption, saves electric energy, safety and stability is suitable for the automatic control with various families electric loading.

Description of drawings

Fig. 1 is the electrical block diagram of existing conventional relay;

Fig. 2 is the internal structure schematic diagram of the utility model lock-on relay with bi-stable state.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

The internal structure schematic diagram of lock-on relay with bi-stable state as shown in Figure 2, comprise housing 1, be provided with main electromagnetic system that the main iron core 2, main yoke 22, the main armature 23 that are twined by main coil 21 formed and the secondary electromagnetic system of being made up of secondary iron core 3, secondary yoke 32, secondary armature 33 that secondary coil 31 twines in the housing 1, main electromagnetic system and secondary electromagnetic system are inverted secured in parallel in housing on the certain location mutually.Main yoke 22 1 ends connect main iron core 2, other end inverse bending, the bending end has set up main armature 23, main armature 23 bending parts are equipped with stationary spring 232, the upper surface is provided with collets 231, secondary yoke 32 1 end auxiliary connection iron cores 3, other end inverse bending, the bending end has set up secondary armature 33, secondary armature 33 1 end auxiliary connection iron cores 3, bending part is provided with the locking spring 331 that links to each other with housing 1, and secondary armature 33 bending terminations are provided with bonnet lock hole 332, and main armature 23 bending terminations are provided with protruding snap close head 233, snap close head 233 slidably enters bonnet lock hole 332, also be provided with the terminal fixed contact 5 that connects of two contact 4, one contacts in the housing, another contact connects moving contact 6 by 61 tractions of movable contact reed.Connect main electromagnetic system power supply, produce the adhesive electromagnetic force in the main coil 21, main armature 22 is adsorbed to main iron core 2 one ends, the snap close head 233 of main simultaneously armature 22 bending terminations slips in the bonnet lock hole 332 of secondary armature 32 bending terminations, the collets 231 of main armature 22 promote movable contact reed 61, make moving contact 6 and fixed contact 5 closures, this moment circuit turn-on, disconnect main electromagnetic system power supply, main coil 21 loses electromagnetic force, but because the effect of locking spring 331, snap close head 233 is limited in the snap close head 332, so relay can keep conducting state always, realize the conducting stable state.Connect secondary electromagnetic system power supply, secondary coil 31 power that generates an electromagnetic field, secondary armature 33 adhesives, secondary armature 33 bending ends move down, make snap close head 233 break away from and skid off bonnet lock hole 332, collets 231 cancellations of main thereupon armature 22 are to the impetus of movable contact reed 61, moving contact 6 separates with fixed contact 5, this moment, circuit disconnected, and disconnected secondary electromagnetic system power supply, and secondary coil 31 loses electromagnetic force, but because the effect of main armature 22 internal fixation spring leafs 232, make the off-state of 22 maintenances of winner's armature and secondary armature 32,, realize disconnecting stable state so relay keeps off-state always.Have only stable state coil when another stable state is changed just to switch in above-mentioned these two processes, after removing closed or discharging, coil keeps off-position, and relay consumes energy less and stable working state.

Execution mode of the present utility model is not restricted to the described embodiments; any change that the technical staff does the foregoing description according to technical scheme described in the utility model in this field or simplification etc. all should fall within claims of the present utility model institute protection range.

Claims

1. lock-on relay with bi-stable state, comprise housing (1), be provided with the main iron core (2) that twines by main coil (2) in the housing (1), main yoke (21), main electromagnetic system that main armature (22) is formed and the secondary iron core (3) that twines by secondary coil (31), secondary yoke (32), the secondary electromagnetic system that secondary armature (33) is formed, it is characterized in that: main yoke (21) one ends connect main iron core (2), other end inverse bending, the bending end has set up main armature (22), secondary yoke (31) one end auxiliary connection iron cores (3), other end inverse bending, the bending end has set up secondary armature (32), and main armature (22) can lock by latching device mutually with secondary armature (32) bending end.

2. lock-on relay with bi-stable state according to claim 1 is characterized in that: described main electromagnetic system and secondary electromagnetic system are inverted secured in parallel mutually in housing (1).

3. lock-on relay with bi-stable state according to claim 1, it is characterized in that: described latching device comprises the bonnet lock hole (332) that is located at secondary armature (33) bending termination and is located at the protruding snap close head (233) of main armature (23) bending termination that described snap close head (233) slidably enters bonnet lock hole (332).

4. according to claim 1 or 3 described lock-on relay with bi-stable state, it is characterized in that: described main armature (23) other end is provided with collets (231), and bending part is equipped with stationary spring (232).

5. according to claim 1 or 3 described lock-on relay with bi-stable state, it is characterized in that: described secondary armature (33) other end auxiliary connection iron core (3), bending part are provided with the locking spring (331) that links to each other with housing (1).

6. lock-on relay with bi-stable state according to claim 1 is characterized in that: be provided with two contacts (4) in the described housing (1), and the terminal fixed contact (5) that connects of a contact, another contact is terminal to connect moving contact (6) by movable contact reed (61) traction.