CN2457726Y

CN2457726Y - Small medium power AC/DC electromaglnetic relay

Info

Publication number: CN2457726Y
Application number: CN 01203110
Authority: CN
Inventors: 邓仕辉
Original assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Current assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Priority date: 2001-01-10
Filing date: 2001-01-10
Publication date: 2001-10-31
Anticipated expiration: 2011-01-10

Abstract

The utility model relates to a small medium power AC/DC electromagnetic relay, which is provided with a magnetic circuit portion, an armature portion, a base, a casing, a button, and an action indication plate of the button. An angle on the casing is provided with a concave table which is provided with button holes; the button holes are provided with a button; the button is composed of a curved arm and a vertical rod; the curved arm is arranged on the top of the concave table of the casing; one end of the curved arm is connected with the top of the vertical rod; the other end of the curved arm is provided with a convex table; the vertical rod is inserted into the button holes; the middle part of the vertical rod is provided with the convex table, and the lower part of the vertical rod is provided with the convex table and a platform. Through a manual button, conversion of relay contacts can be realized, and the condition of the motion of the relay contacts can be observed from the top of the casing.

Description

Power AC and DC electromagnetic relay in small-sized

The utility model relates to a kind of electromagnetic relay, in particular for the electromagnetic relay of power alternating current-direct current in small-sized.

Power AC and DC electromagnetic relay generally is made up of magnetic circuit part, armature part, base, shell etc. in conventional small-sized, and its coil is wrapped on the spool (or skeleton), inserts iron core, contact-carrying on the reed in the spool.Existing a kind of relay product has one by spool and the integrally formed base of pedestal.In assembling, coil is wrapped on the spool of base, yoke is utilized protruding bud on it and stage clip riveting together, installing hole from the base bottom passes again, and link together with the iron core that inserts from spool top, armature is placed on the yoke edge of a knife by the stage clip effect, form the magnetic circuit part.Again reed is fixed on the base.By excitatory, the degaussing of magnetic circuit part, making armature is the rotating shaft rotation with the edge of a knife of yoke, promotes the folding of contact part.Usually the conversion of relay contact must apply voltage or electric current to relay coil, therefore, the whole set equipment that uses conventional relay is when carrying out Installation and Debugging, after must coil electricity to relay, just can make the actuating of relay, thereby make the action of relay make contact device driven, very inconvenience.And whether move the contact of relay, can't find out intuitively.

The purpose of this utility model is to provide a kind of coil at relay not apply under the situation of voltage or electric current, can realize the conversion of contact by button mechanism, and can to the action of the contact of relay intuitively observe small-sized in power AC and DC electromagnetic relay.

The utility model is provided with magnetic circuit part, armature part, base and shell, establish a concave station for one jiao on shell, the concave station face is provided with a through hole, establish a button on the through hole, button is made up of curved boom, vertical rod, curved boom is positioned at shell concave station top, and an end of curved boom is connected (or integrated) with the top of vertical rod, and the other end of curved boom is a boss; The through hole (title button hole) on the shell is inserted in vertical rod, and boss (claiming boss in the vertical rod) is established in the outside, middle part of vertical rod, and the bottom of vertical rod is established boss (claiming the vertical rod lower convex platform) and platform respectively.

The curved boom of button plays button to be pressed the back and acts on mutually with shell, produces reactivation, and the vertical rod bottom surface promotes armature when button is pressed, and makes the disconnection of normally-closed contact group, normally opened contact group closure.The vertical rod lower convex platform promotes armature and makes that the normally-closed contact group disconnects, the normally opened contact group is closed and protect this state when 90 ° of turn knob.When button reverted to former 0 °, the vertical rod lower convex platform and the armature of button front end disengaged, contact sets reinstatement attitude (normally-closed contact group closure, normally opened contact group disconnect), and the vertical rod platform of button front end and armature have a fixed gap to step down.And it is spacing that boss and enclosure stick together formation in the vertical rod of button, and boss can rotate along button hole anchor ring in the shell in the vertical rod.Boss on the curved boom cooperates with boss face on the shell, spacing when forming button and not working.On the armature part, establish button actions indicator board and action indicator, in the observation window of shell, can observe button actions indicator board and action indicator.

Because button is a movable shaft-like mechanism, its vertical rod can be rotated and move up and down in the button hole on shell, makes button to move up and down in button hole by curved boom.When finger moved down vertical rod, the vertical rod bottom surface promoted armature, and making the armature part is that fulcrum rotates with the yoke edge of a knife, thereby realizes the conversion of contact; When unclamping when finger, vertical rod moves up, and under the effect of curved boom, vertical rod moves up, and relay realizes that the contact resets under the effect of self extension spring.By the edge that rotates curved boom button can be rotated in button hole, slewing area is 0～90 °, and when button was in the home position, vertical rod boss outer edge surface and the armature boss side surfaces on partly was vertical and do not contact, and relay contact is in initial condition; When 90 ° of turn knob, boss side surfaces on vertical rod lower convex platform outer edge surface and the armature part contacts, and since the radius of gyration of button upper pright stanchion boss outer edge surface greater than the radius of vertical rod, be that fulcrum rotates thereby promote the armature part with the yoke edge of a knife, thereby realize the conversion of contact; When button rotated back into 0 °, the boss side surfaces on vertical rod lower convex platform outer edge surface and the armature part was left because of rotation, and relay realizes that the contact resets under the effect of self extension spring.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that button of the present utility model rotates 90 ° structural representation.

Fig. 3 is an assembly structure schematic diagram of the present utility model.

Fig. 4 is a cut-away view of outer cover of the present utility model.

Fig. 5 is a shell stereogram of the present utility model.

Fig. 6 is a button stereogram of the present utility model.

Fig. 7,8 is the moving spring group stereogram in the utility model armature part.

Fig. 9 is the another kind of press-button structure schematic diagram of the utility model.

Figure 10 is the utility model button actions indicator board schematic diagram.

Following examples will be further described structure of the present utility model and function in conjunction with the accompanying drawings.

Shown in Fig. 1～3, the utility model mainly is made up of button 1, shell 2, moving spring group part 3, button actions indicator board 4, armature part 5, magnetic circuit part 6 and base 7.Referring to Fig. 4～6, on an angle of shell 2, a concave station 27 is arranged, and on concave station 27, be provided with a button hole 22 that is used to install button 1, and 22 length direction has a groove 23 along the hole, is used for the button convex platform and steps down.Shell 2 top design have button actions indicator board observation window 24, action indicator observation window 25 simultaneously, and other parts all are designed to pitted skin, form transparent contrast with observation window.Button 1 is made up of curved boom 11, vertical rod 12, curved boom 11 is positioned on the shell concave station 27, and curved boom 11 is formed by righting arm 111 with by swing arm 112 two parts, and two parts fuse, the other end of righting arm 111 extends boss 113, and the other end of pressing swing arm 112 is fixedlyed connected with vertical rod 12.The curved boom 11 of button play button press the back act on mutually with shell concave station 27, the generation reactivation.Button bottom surface 124 promotes 31 planes (referring to Fig. 8) of armature part 3 when button is pressed, make that the normally-closed contact group disconnects, normally opened contact group closure.Button vertical rod lower convex platform 122 promotes 32 planes of armature part when 90 ° of turn knob, make that normally-closed contact disconnects, the normally opened contact group is closed and keep this state.When button reverts to former 0 °, face 32 on button vertical rod lower convex platform 122 and the armature part disengages, contact sets reinstatement attitude (normally-closed contact group closure, normally opened contact group disconnect), the face 32 on button vertical rod platform 14 and the armature part has a fixed gap to step down.And it is spacing that the anchor ring 21 of boss 123 and enclosure sticks together formation in the vertical rod of button, and boss 123 can rotate along anchor ring 21 in the vertical rod.Button righting arm boss 113 cooperates with boss face 26 on the shell, spacing when forming button and not working.

Button also can be designed to the shape as Fig. 9, with uniting two into one by swing arm and righting arm of the curved boom of button, and it is designed to curved shape, makes it have pressing and the double action that resets.Among Fig. 9 114 for have pressing, the functor of the double action that resets, the design at all the other positions of button is identical with structure among Fig. 6.

Referring to Fig. 7, the moving spring retable materials and parts on the armature part are provided with at least 1 hook 33,34, cooperate with concave station face 42,43 on the button actions indicator board 4 (referring to Figure 10).When armature partly moved, making button actions indicator board 4 was that fulcrum rotates with 45,46, can observe the motion on the plane 41 of button actions indicator board 4 in the observation window 25 of shell, thereby judge the action of relay.

The volume size of shell concave station 27 gets final product with the curved boom 11 that can hold button 1, make button not exceed the shell edge of relay, button hole 22 on the shell 2 certain-length that extends internally forms tubulose, with stablize button vertical rod 12 in button hole rotation and move up and down.The anchor ring of inner spout forms spacing to button vertical rod convex platform 123, limit button 1 is moved back outward.Vertical rod 12 can be cylindrical bar.

As Figure 10, the contacts status of relay can partly have two Plastic hangers that stretch out at armature by button actions indicator board 4 indication, forms movable the cooperation with groove on the button actions indicator board 4.When armature partly moved, hook pulling button actions indicator board 4 rotated, and can see red indicator board from the watch window of cover top portion.When armature partly restored to the original state attitude, the action indicator board was got back to original position, and the red indicator board in the cover top portion window disappears.

Button actions indicator board 4 is tabular working of plasticss, its two leg surface design become inclined-plane or arc surface, can be that fulcrum rotates with the leg, a tranverse connecting plate is arranged at its middle part, on have two partly to link up with the groove that matches with armature, its indication arm top is designed to a wide slightly face, can be in the action of shell indicating window indicating relay.

After relay increases this button mechanism, can be by pressing or turn knob, realize the conversion of relay contact easily, thereby make the user when commissioning device that not needing provides voltage (or electric current) can realize that the apparatus that relay drives enters operating state to relay coil.Simultaneously, in the watch window of cover top portion, can see easily that whether relay contact moves.

Claims

1, small-sized middle power AC and DC electromagnetic relay, be provided with magnetic circuit part, armature part, base and shell, it is characterized in that one jiao on shell is established a concave station, concave station is provided with a through hole, establish a button on the through hole, button is made up of curved boom, vertical rod, and curved boom is positioned at shell concave station top, one end of curved boom is connected with the top of vertical rod, and the other end of curved boom is a boss; The through hole on the shell is inserted in vertical rod, and boss is established in the outside, middle part of vertical rod, and the bottom of vertical rod is established boss and platform respectively.

2, as claimed in claim 1 small-sized in power AC and DC electromagnetic relay, it is characterized in that the connecting as one structure of said curved boom and vertical rod.

3, small-sized middle power AC and DC electromagnetic relay as claimed in claim 1 is characterized in that the length direction in the hole, through hole upper edge on the said shell concave station face is provided with groove.

4, as claimed in claim 1 small-sized in power AC and DC electromagnetic relay, it is characterized in that said curved boom forms by righting arm with by swing arm, two parts fuse, the other end of righting arm extends boss, the other end and the vertical rod of pressing swing arm are affixed.

5, small-sized middle power AC and DC electromagnetic relay as claimed in claim 1 is characterized in that being provided with button actions indicator board and action indicator on the armature part, is provided with button actions indicator board observation window and indicator light observation window in cover top portion in addition.