CN204596717U - A kind of movable contact spring of high-power magnetic relay - Google Patents
A kind of movable contact spring of high-power magnetic relay Download PDFInfo
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- CN204596717U CN204596717U CN201520255329.2U CN201520255329U CN204596717U CN 204596717 U CN204596717 U CN 204596717U CN 201520255329 U CN201520255329 U CN 201520255329U CN 204596717 U CN204596717 U CN 204596717U
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- movable contact
- contact spring
- leading foot
- spring body
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Abstract
The utility model discloses a kind of movable contact spring of high-power magnetic relay, this movable contact spring comprises the movable contact spring body of sheet shape; Described movable contact spring body also one extension is provided with dynamic spring leading foot; Described dynamic spring leading foot is stacked by forming by movable contact spring body three.The utility model is the mode adopting movable contact spring and dynamic spring leading foot integrative-structure, and dynamic spring leading foot adopts three laminates modes to form, and does not increase extra leading foot, have product structure simpler, and conduction is reliable, can not have the hidden danger of inefficacy.
Description
Technical field
The utility model relates to a kind of relay, particularly relates to a kind of movable contact spring of the high-power magnetic relay for big current occasion.
Background technology
Relay is the automatic switch element with isolation features, and being widely used in the field such as communication, automobile, automatically control, household electrical appliance, is one of most important control element.
Relay is mechanical action components and parts, converts electrical energy into mechanical energy to realize the Spline smoothing of output variable.The two ends of commutation circuit are quiet spring part and dynamic spring part respectively, and quiet spring part is made up of quiet spring and fixed contact, and dynamic spring part is made up of movable contact spring and moving contact, and movable contact spring is motion under electromagnetic force drives, until dynamic and static contact just connects external circuit.Because movable contact spring needs back and forth movement in inside, and in motion process, certain deformation can occur, therefore the thickness of movable contact spring is often at below 0.3mm.For the product of carrying small area analysis, movable contact spring can directly be drawn, when but electric current is larger, because the little meeting of current carrying area causes local overheating when thin movable contact spring is directly drawn, therefore the thick leading foot of an increase fine copper material is needed, Fig. 1 is the partial structurtes schematic diagram of a kind of electromagnetic relay of prior art, this relay comprises armature 101, yoke 102, movable contact spring 103 and dynamic spring leading foot 104, wherein, one end and the armature 101 of movable contact spring 103 fix, the other end and the yoke 102 of movable contact spring 103 fix, simultaneously, the other end of movable contact spring 103 also will fix with dynamic spring leading foot 104, dynamic spring leading foot 104 is thick leading foots of fine copper material, dynamic when fixing between spring leading foot 104 and movable contact spring 103, must realize via riveted joint or welding, if riveted joint or not prison welding, when electric current flows through riveting point/pad, serious heating can be there is, and form vicious circle, finally cause product failure.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art, a kind of movable contact spring of high-power magnetic relay is provided, it is the mode adopting movable contact spring and dynamic spring leading foot integrative-structure, do not increase extra leading foot, there is product structure simpler, and conduction is reliable, can not have the hidden danger of inefficacy.
The utility model solves the technical scheme that its technical problem adopts: a kind of movable contact spring of high-power magnetic relay, comprises the movable contact spring body of sheet shape; Described movable contact spring body also one extension is provided with dynamic spring leading foot; Described dynamic spring leading foot is stacked by forming by movable contact spring body three.
Described dynamic spring leading foot is located at the root of movable contact spring body, the root of movable contact spring body is provided with and leans against on movable contact spring body to the first kink of bending to make bending part fold to inward side, and described bending part is provided with the second kink bent in outward direction, and to make, bending part is folded again to be leaned against on described bending part again.
The length dimension of described dynamic spring leading foot is greater than the width dimensions of movable contact spring body.
The movable contact spring of a kind of high-power magnetic relay of the present utility model, the root that its manufacturing process is included in movable contact spring body makes the process moving spring leading foot;
The process that spring leading foot is moved in described making comprises:
The root of movable contact spring body is converted into the step of zigzag shape;
Zigzag shape is pressed against the step forming three laminate structure together.
The beneficial effects of the utility model are:
1, owing to have employed, the extension of movable contact spring body one is arranged dynamic spring leading foot, do not increase extra leading foot, there is product structure simpler, and the more reliable feature of conduction;
2, stacked by forming by movable contact spring body three owing to have employed dynamic spring leading foot, increase leading foot sectional area, can be applied in the high-power magnetic relay of big current occasion, and can reliable conductive be realized, the hidden danger of inefficacy can not be had;
3, owing to have employed the step that the root of movable contact spring body is converted into zigzag shape in the manufacturing process of dynamic spring leading foot and zigzag shape being pressed against the step forming three laminate structure together, relay pin can be folded completely, ensure that pin can by effective tin sticky and plastic packaging.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But the movable contact spring of a kind of high-power magnetic relay of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of existing electromagnetic relay;
Fig. 2 is the structural representation of movable contact spring of the present utility model;
Fig. 3 is the root of movable contact spring of the present utility model structural representation when being bent into zigzag shape;
Front view when Fig. 4 is the root bending zigzag shape of movable contact spring of the present utility model;
Fig. 5 is the schematic diagram that the root of movable contact spring of the present utility model makes the process one of dynamic spring leading foot;
Fig. 6 is the schematic diagram that the root of movable contact spring of the present utility model makes the process two of dynamic spring leading foot;
Fig. 7 is the schematic diagram that the root of movable contact spring of the present utility model makes the process three of dynamic spring leading foot;
Fig. 8 is the schematic diagram that the root of real movable contact spring of the present utility model makes the process four of dynamic spring leading foot;
Fig. 9 is the schematic diagram that the root of the movable contact spring of comparative example makes the process one of dynamic spring leading foot;
Figure 10 is the schematic diagram that the root of the movable contact spring of comparative example makes the process two of dynamic spring leading foot;
Figure 11 is the schematic diagram that the root of the movable contact spring of comparative example makes the process three of dynamic spring leading foot;
Figure 12 is the schematic diagram that the root of the movable contact spring of comparative example makes the process four of dynamic spring leading foot.
Embodiment
Embodiment
See shown in Fig. 2 to Fig. 8, the movable contact spring of a kind of high-power magnetic relay of the present utility model, comprises the movable contact spring body 1 of sheet shape; Described movable contact spring body 1 also one extension is provided with dynamic spring leading foot 2; Described dynamic spring leading foot 2 is stacked by forming by movable contact spring body three.
Described dynamic spring leading foot 2 is located at the root 11 of movable contact spring body, the root of movable contact spring body is provided with and leans against on movable contact spring body 1 to the first kink 21 of bending to make bending part 22 fold to inward side, namely bending part 22 abuts in the root 11 of movable contact spring body, and described bending part 22 is provided with the second kink 23 bent in outward direction, and to make, bending part 24 is folded again to be leaned against on described bending part 22 again.
The length dimension of described dynamic spring leading foot 2 is greater than the width dimensions of movable contact spring body 1.
The movable contact spring of a kind of high-power magnetic relay of the present utility model, it made the process that Cheng is included in the dynamic spring leading foot 2 of root making of movable contact spring body 1;
The process that spring leading foot 2 is moved in described making comprises:
First time bending, is bent to form the second kink 23 downwards by the end of the root of movable contact spring body 1, make in 90 degree between the least significant end 24 of the root of movable contact spring body and movable contact spring body 1, as shown in Figure 5;
Second time bending, is upwards bent to form the first kink 21 by the end of the root of movable contact spring body 1, make in 90 degree between the secondary end 22 of the root of movable contact spring body and movable contact spring body 1, as shown in Figure 6;
The root of movable contact spring body is converted into zigzag shape, as shown in Figure 7;
Zigzag shape is pressed against and forms three laminate structure together, be close together even if the root 11 of least significant end 24, secondary end 22 and movable contact spring body is sequentially folded, form three laminate structure; As shown in Figure 8.
The movable contact spring of a kind of high-power magnetic relay of the present utility model, moving plate body 1 one is extended arrange dynamic spring leading foot 2, do not increase extra leading foot, make product structure simpler, conduct electricity more reliable, and dynamic spring leading foot 2 is stacked by forming by movable contact spring body 1 three, increase leading foot sectional area, can be applied in the high-power magnetic relay of big current occasion, and on production method, have employed first bending downwards, upwards bend again, last particular form of bending again, relay pin can be folded completely, ensure that pin can by effective tin sticky and plastic packaging.
If do not adopt this particular form of the present utility model, and employing is that Fig. 9 makes the mode of the dynamic spring leading foot of three laminate structure to another kind illustrated in fig. 12, then do not reach and relay pin is folded completely, ensure that pin can by the effect of effective tin sticky and plastic packaging.As shown in Fig. 9 to Figure 12, the manufacturing process of the dynamic spring leading foot of this three laminate structure first upwards bends (as shown in Figure 9), then folded part 51 is pressed against (as shown in Figure 10) on movable contact spring body 5, again two laminate structure 52 are upwards bent (as shown in figure 11) together again, and then two laminate structure 52 are pressed against (as shown in figure 12) on movable contact spring body 5.
Because movable contact spring thickness is little, need the current carrying area being increased leading foot by lamination, after lamination is more than twice, adopt normal lamination process (shown in Fig. 9 to Figure 12), again during lamination because need to push down material (adopting binder 53), cannot bend at lamination root, need to leave certain distance to step down punch, therefore lamination root can produce space H, due to the existence of this gap H, have air herein, when pin tin sticky, when being heated, air expansion can stop tin liquor to enter this gap; Same, when pin point glue plastic packaging cures, air expands and epoxide-resin glue also can be stoped to enter this gap.Therefore there is gap all the time in relay pin, in the use procedure of relay, if the solution such as scaling powder, water enters relay inside by siphonage, may cause relay failure.
The dynamic spring leading foot that the particular form that the utility model adopts is made does not have this gap (as shown in Figure 8), relay pin can be folded completely, ensures that pin can by effective tin sticky and plastic packaging.
Above-described embodiment is only used for further illustrating the movable contact spring of a kind of high-power magnetic relay of the present utility model; but the utility model is not limited to embodiment; every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all fall in the protection range of technical solutions of the utility model.
Claims (3)
1. a movable contact spring for high-power magnetic relay, comprises the movable contact spring body of sheet shape; Described movable contact spring body also one extension is provided with dynamic spring leading foot; It is characterized in that: described dynamic spring leading foot is stacked by forming by movable contact spring body three.
2. the movable contact spring of high-power magnetic relay according to claim 1, it is characterized in that: described dynamic spring leading foot is located at the root of movable contact spring body, the root of movable contact spring body is provided with and leans against on movable contact spring body to the first kink of bending to make bending part fold to inward side, and described bending part is provided with the second kink bent in outward direction, and to make, bending part is folded again to be leaned against on described bending part again.
3. the movable contact spring of high-power magnetic relay according to claim 1 and 2, is characterized in that: the length dimension of described dynamic spring leading foot is greater than the width dimensions of movable contact spring body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255329.2U CN204596717U (en) | 2015-04-24 | 2015-04-24 | A kind of movable contact spring of high-power magnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255329.2U CN204596717U (en) | 2015-04-24 | 2015-04-24 | A kind of movable contact spring of high-power magnetic relay |
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| Publication Number | Publication Date |
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| CN204596717U true CN204596717U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520255329.2U Active CN204596717U (en) | 2015-04-24 | 2015-04-24 | A kind of movable contact spring of high-power magnetic relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851748A (en) * | 2015-04-24 | 2015-08-19 | 厦门宏发电声股份有限公司 | Moving reed of large-power electromagnetic relay, and manufacturing method thereof |
-
2015
- 2015-04-24 CN CN201520255329.2U patent/CN204596717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851748A (en) * | 2015-04-24 | 2015-08-19 | 厦门宏发电声股份有限公司 | Moving reed of large-power electromagnetic relay, and manufacturing method thereof |
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