CN201766032U

CN201766032U - Electric relay

Info

Publication number: CN201766032U
Application number: CN2010202173568U
Authority: CN
Inventors: 王铁伟; 王坚敏; 余晓明
Original assignee: NINGBO TIANBO WEIYE ELECTRIC APPLIAINCES CO Ltd
Current assignee: NINGBO TIANBO WEIYE ELECTRIC APPLIAINCES CO Ltd
Priority date: 2010-06-07
Filing date: 2010-06-07
Publication date: 2011-03-16
Anticipated expiration: 2020-06-07

Abstract

The utility model provides an electric relay which comprises a base, a rear cover, a movable spring I, a movable spring II, a frame, a coil connected on the frame, a static contact piece I, a movable spring guide piece I, a static contact piece II and a movable spring guide piece II, wherein the static contact piece I, the movable spring guide piece I, the static contact piece II and the movable spring guide piece II are connected in sequence from left side to right side on the base; the base is connected with the rear cover; a static contact I is connected onto the static contact piece I; the lower part of the movable spring I is connected with the movable spring guide piece I; a movable contact I capable of being picked on the static contact I is connected to the upper part of the movable spring I; a static contact II is connected onto the static contact piece II; the lower part of the movable spring II is connected with the movable spring guide piece II; and a movable contact II capable of being picked on the static contact II is connected at the upper part of the movable spring II. The electric relay is characterized in that a polarity-changeable coil is adopted, the frame is positioned on the left side of the movable spring I, and a holding mechanism is connected between the frame and the movable springs I and II and can keep the movable springs I and II to still in the state that the coil is powered on after the coil is powered off. The electric relay saves electric energy and prolongs the service life of the coil.

Description

Relay

Technical field:

The utility model relates to a kind of electronic control device, specifically is a kind of relay.

Background technology:

We know, when the relay in the routine techniques is worked, as long as add certain voltage at the coil two ends, will flow through certain electric current in the coil, thereby generation galvanomagnetic effect, armature can be in the moving contact and the fixed contact on the static contact spring piece (normally opened contact) adhesive that drive under the effect of electromagnetic attracting force on the movable contact spring, external circuit has just been connected in moving contact and fixed contact adhesive later on, in order to make external circuit be in conducting state always, we need continue to keep moving contact and fixed contact adhesive to coil power supply, still, not only can cause waste of electric energy for for a long time coil power supply, but also can cause the caloric value of coil to continue to increase, influence the useful life of coil.

The utility model content:

The technical problems to be solved in the utility model is, provides a kind of and can save electric energy, the relay in extension coil useful life.

Technical solution of the present utility model is, provide a kind of relay: comprise pedestal with following structure, bonnet, movable contact spring I, movable contact spring II, skeleton, be connected the coil on the skeleton and be connected to quiet contact chip I on the pedestal from left to right in turn, moving spring lead-out tablet I, quiet contact chip II and moving spring lead-out tablet II, pedestal is connected with bonnet, be connected with fixed contact I on the quiet contact chip I, movable contact spring I bottom is connected with moving spring lead-out tablet I, movable contact spring I top is connected with the moving contact I that can be pull-in on the fixed contact I, be connected with fixed contact II on the quiet contact chip II, movable contact spring II bottom is connected with moving spring lead-out tablet II, movable contact spring II top is connected with the moving contact II that can be pull-in on the fixed contact II, wherein, coil is the coil of a convertible polarity, skeleton is positioned at movable contact spring I left side, is connected with the maintaining body of a state can continue maintenance movable contact spring I and movable contact spring II be in coil electricity behind coil blackout the time between skeleton and movable contact spring I and the movable contact spring II.

Relay described in the utility model, wherein, maintaining body can comprise push rod, the magnet steel body, left side yoke, right yoke, connecting plate and be connected upper armature and lower armature on the magnet steel body, left side yoke and right yoke are connected to the left part and the right part of skeleton, connecting plate is connected between left yoke and the right yoke, the magnet steel body is rotatably connected between connecting plate and the pedestal, magnet steel body top is connected with push rod, the left side of push rod, right two ends slidably are connected with quiet contact chip I and quiet contact chip II respectively, the push rod middle part is provided with two protruding pin I, the push rod right part is provided with two protruding pin II, movable contact spring I top is between two protruding pin I, and movable contact spring II top is between two protruding pin II.

Relay described in the utility model, wherein, movable contact spring I top and protruding pin I contact site are provided with flexure strip I, and movable contact spring II top and protruding pin II contact site are provided with flexure strip II.

After adopting above structure, compared with prior art, the utility model relay has the following advantages: need hold-in winding energising always just can make the moving contact on the movable contact spring different with the fixed contact adhesive on the static contact spring piece with prior art, because the utility model relay is at the maintaining body that is connected with a state can continue maintenance movable contact spring I and movable contact spring II be in coil electricity behind coil blackout the time between skeleton and movable contact spring I and the movable contact spring II, therefore, the utility model relay only feeds immediate current to coil when connecting external circuit or disconnecting external circuit, can disconnect the electric current of coil then, state when maintaining body can make movable contact spring I and movable contact spring II be in coil electricity.Coil in the utility model relay is after moving contact I and fixed contact I and moving contact II and fixed contact II are switched on or switched off, there is not electric current to pass through in the coil, therefore, the utility model relay has not only effectively been saved electric energy, but also shortened conduction time of coil, and then greatly reduce the caloric value of coil, the useful life of further having improved coil.

Maintaining body comprises push rod, the magnet steel body, left side yoke, right yoke, connecting plate and be connected upper armature and lower armature on the magnet steel body, when the utility model relay is worked, when promptly connecting external circuit, the user can make left yoke produce magnetic by the polarity that changes coil, and rely on this magnetic to attract upper armature left part counter-clockwise swing, in the process of upper armature left part counter-clockwise swing, magnetic rigid body top can drive push rod and be moved to the left, at this moment, protruding pin I on the push rod and protruding pin II can drive movable contact spring I respectively and movable contact spring II is moved to the left, and finally make moving contact I and fixed contact I and moving contact II and fixed contact II adhesive, after treating that the upper armature left part is inhaled left yoke, upper armature can keep the state of adhesive always with left yoke under the effect of magnetic rigid body permanent magnetism, at this moment, the user can be with the dump of coil.When the utility model relay needs the disconnecting external circuit, the user can make right yoke produce magnetic by the polarity that changes coil in the other direction, at this moment, yoke to the right can be swung and inhale to upper armature clockwise under the effect of right yoke magnetic, inhale in the process of yoke to the right at upper armature, magnet steel body top then can drive push rod and move right, in the process that push rod moves right, protruding pin I and protruding pin II then can order about moving contact I and fixed contact I and moving contact II and fixed contact II disconnection, treat that the upper armature right part inhales to the right after the yoke, upper armature can keep the state of adhesive always with right yoke under the effect of magnetic rigid body permanent magnetism, at this moment, the user can be with the dump of coil.

The setting of flexure strip I can effectively increase the adhesive pressure between moving contact I and the fixed contact I, thereby guarantee the fastness after moving contact I and the fixed contact I adhesive, and the setting of flexure strip II can effectively increase the adhesive pressure between moving contact II and the fixed contact II, thereby guarantees the fastness after moving contact II and the fixed contact II adhesive.

Description of drawings:

Fig. 1 is the stereochemical structure profile schematic diagram of the utility model relay;

Master when Fig. 2 is the utility model relay removal bonnet looks the structure for amplifying schematic diagram;

Master when Fig. 3 is the removal of the utility model relay bonnet, pedestal and connecting plate looks the structure for amplifying schematic diagram.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model relay is described further:

As Fig. 1, Fig. 2 and shown in Figure 3, in this embodiment, the utility model relay comprises pedestal 3, bonnet 2, movable contact spring I 12, movable contact spring II 13, skeleton 11, is connected the coil 10 on the skeleton 11 and is connected to the quiet contact chip I 4 on the pedestal 3, moving spring lead-out tablet I 14, quiet contact chip II 24 and moving spring lead-out tablet II 23 from left to right in turn.Quiet contact chip I 4, moving spring lead-out tablet I 14, quiet contact chip II 24 and moving spring lead-out tablet II 23 tops all are connected with a binding post 1, pedestal 3 is fastened and connected with bonnet 2, be connected with fixed contact I 15 on the quiet contact chip I 4, movable contact spring I 12 bottoms are connected with moving spring lead-out tablet I 14 bottoms, movable contact spring I 12 tops are connected with the moving contact I 16 that can be pull-in on the fixed contact I 15, be connected with fixed contact II18 on the quiet contact chip II 24, movable contact spring II 13 bottoms are connected with moving spring lead-out tablet II 23 bottoms, movable contact spring II 13 tops are connected with the moving contact II 19 that can be pull-in on the fixed contact II18, coil 10 is the coil of a convertible polarity, the coil 10 of this convertible polarity is made up of left coil and right-turn coil, left coil and right-turn coil and around skeleton 11 middle parts, the utility model relay changes the polarity of coil 10 by switching on to left coil and right-turn coil respectively, skeleton 11 is positioned at movable contact spring I 12 left sides, be connected with the maintaining body of a state can continue in coil 10 outage back to keep movable contact spring I 12 and movable contact spring II 13 to be in coil 10 energisings the time between skeleton 11 and movable contact spring I 12 and the movable contact spring II 13, this maintaining body specifically comprises push rod 5, magnet steel body 6, left side yoke 7, right yoke 9, connecting plate 8 and be connected upper armature 25 and lower armature 26 on the magnet steel body 6, be connected with a permanent magnet (not shown) between upper armature 25 and the lower armature 26, left side yoke 7 is connected the left part of skeleton 11, right yoke 9 is connected the right part of skeleton 11, the left part of connecting plate 8 is connected on the left yoke 7, the right part of connecting plate 8 is connected on the right yoke 9, magnet steel body 6 is rotatably connected between connecting plate 8 and pedestal 3 inwalls, magnet steel body 6 tops are connected with push rod 5, the left part of push rod 5 slidably is connected with quiet contact chip I 4, the right part of push rod 5 slidably is connected with quiet contact chip II 24, push rod 5 middle parts are provided with two protruding pin I 17, push rod 5 right parts are provided with two protruding pin II 21, movable contact spring I 12 tops are between two protruding pin I 17, movable contact spring II 13 tops are between two protruding pin II 21, movable contact spring I 12 upper right and protruding pin I 17 contacts site are provided with flexure strip I 20, the setting of flexure strip I 20 can effectively increase the adhesive pressure between moving contact I 16 and the fixed contact I 15, thereby guarantee the fastness after moving contact I 16 and fixed contact I 15 adhesives, movable contact spring II 13 upper right and protruding pin II 21 contacts site are provided with flexure strip II 22, the setting of flexure strip II 22 can effectively increase the adhesive pressure between moving contact II 19 and the fixed contact II18, thereby guarantees the fastness after moving contact II 19 and the fixed contact II18 adhesive.

The operation principle of the utility model relay: when the utility model relay is worked, when promptly utilizing the utility model relay to connect external circuit, the user can make left yoke 7 produce magnetic by the polarity that changes coil 10, and rely on this magnetic to attract upper armature 25 left part counter-clockwise swings, in the process of upper armature 25 left part counter-clockwise swings, magnetic rigid body 6 tops can drive push rod 5 and be moved to the left, at this moment, right side protruding pin I 17 on the push rod 5 and right side protruding pin II 21 can drive movable contact spring I 12 tops respectively and movable contact spring II 13 tops are moved to the left, and finally make moving contact I 16 and fixed contact I 15 and moving contact II 19 and fixed contact II18 adhesive, after treating that upper armature 25 left parts are inhaled left yoke 7, upper armature 25 can keep attracting state with left yoke 7 always under the effect of magnetic rigid body 6 permanent magnetisms, at this moment, the user can be with the dump of coil 10.When the utility model relay needs the disconnecting external circuit, the user can make right yoke 9 produce magnetic by the polarity that changes coil 10 in the other direction, at this moment, yoke 9 to the right can be swung and inhale to upper armature 25 clockwise under the effect of right yoke 9 magnetic, inhale in the process of yoke 9 to the right at upper armature 25, magnet steel body 6 tops then can drive push rod 5 and move right, in the process that push rod 5 moves right, left side protruding pin I 17 and 21 of left side protruding pin II can drive movable contact spring I 12 tops and movable contact spring II 13 tops move right, and moving contact I 16 and fixed contact I 15 and moving contact II 19 are disconnected with fixed contact II18, treat that upper armature 25 right parts inhale to the right after the yoke 9, upper armature 25 can keep attracting state with right yoke 9 always under the effect of magnetic rigid body 6 permanent magnetisms, at this moment, the user can be with the dump of coil 10.

Claims

1. relay, comprise pedestal (3), bonnet (2), movable contact spring I (12), movable contact spring II (13), skeleton (11), be connected the coil (10) on the skeleton (11) and be connected to quiet contact chip I (4) on the pedestal (3) from left to right in turn, moving spring lead-out tablet I (14), quiet contact chip II (24) and moving spring lead-out tablet II (23), described pedestal (3) is connected with bonnet (2), be connected with fixed contact I (15) on the described quiet contact chip I (4), described movable contact spring I (12) bottom is connected with moving spring lead-out tablet I (14), described movable contact spring I (12) top is connected with the moving contact I (16) that can be pull-in on the fixed contact I (15), be connected with fixed contact II (18) on the described quiet contact chip II (24), described movable contact spring II (13) bottom is connected with moving spring lead-out tablet II (23), described movable contact spring II (13) top is connected with the moving contact II (19) that can be pull-in on the fixed contact II (18), it is characterized in that: described coil (10) is the coil of a convertible polarity, described skeleton (11) is positioned at movable contact spring I (12) left side, is connected with the maintaining body of a state can continue to keep movable contact spring I (12) and movable contact spring II (13) to be in coil (10) in coil (10) outage back and switch on the time between described skeleton (11) and movable contact spring I (12) and the movable contact spring II (13).

2. relay according to claim 1, it is characterized in that: described maintaining body comprises push rod (5), magnet steel body (6), left side yoke (7), right yoke (9), connecting plate (8) and be connected upper armature (25) and lower armature (26) on the magnet steel body (6), described left yoke (7) and right yoke (9) are connected to the left part and the right part of skeleton (11), described connecting plate (8) is connected between left yoke (7) and the right yoke (9), described magnet steel body (6) is rotatably connected between connecting plate (8) and the pedestal (3), described magnet steel body (6) top is connected with push rod (5), the left side of described push rod (5), right two ends slidably are connected with quiet contact chip I (4) and quiet contact chip II (24) respectively, described push rod (5) middle part is provided with two protruding pin I (17), described push rod (5) right part is provided with two protruding pin II (21), described movable contact spring I (12) top is positioned between two protruding pin I (17), and described movable contact spring II (13) top is positioned between two protruding pin II (21).

3. relay according to claim 2, it is characterized in that: described movable contact spring I (12) top and protruding pin I (17) contact site are provided with flexure strip I (20), and described movable contact spring II (13) top and protruding pin II (21) contact site are provided with flexure strip II (22).