CN204464182U - A kind of have the relay contacts group preventing contact binding function - Google Patents
A kind of have the relay contacts group preventing contact binding function Download PDFInfo
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- CN204464182U CN204464182U CN201520160499.2U CN201520160499U CN204464182U CN 204464182 U CN204464182 U CN 204464182U CN 201520160499 U CN201520160499 U CN 201520160499U CN 204464182 U CN204464182 U CN 204464182U
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Abstract
The utility model discloses and a kind of there is the relay contacts group preventing contact binding function, comprise dynamic contact group and contact group with quiet, dynamic contact group comprises moving contacting plate, quiet contact group comprises quiet contact chip, feature is that moving contacting plate top offers groove, moving contacting plate top is made to form the first cantilever arranged side by side and the second cantilever, first cantilever top is fixedly installed auxiliary moving contact, the top of the second cantilever is fixedly installed initiatively contact, and the top of quiet contact chip is fixedly installed the main fixed contact corresponding with active contact and the auxiliary fixed contact corresponding with auxiliary moving contact; Advantage uses the relay of this contact group in the larger load circuit of surge current, can effectively prevent contact bonding.
Description
Technical field
The utility model relates to a kind of electromagnetic relay, particularly relates to a kind ofly to have the relay contacts group preventing contact binding function.
Background technology
Relay is a kind of electronic component, is widely used in household electrical appliance, automated system, electronic equipment, instrument, instrument, monitor, stereo set and communication assembling device etc.The loadtype of relay comprises resistive load and inductive load, wherein inductive load comprises lamp load, when the load of relay is lamp load, surge current is born quite large contact adhesive instantaneous of relay contacts group, inrush current value as scalding lamp is the steady-state current of 10 ~ 15 times, and it is bonding and cause inefficacy that contact easily occurs relay.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind ofly has the relay contacts group preventing contact binding function.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of have the relay contacts group preventing contact binding function, comprise dynamic contact group and contact group with quiet, described dynamic contact group comprises moving contacting plate, described quiet contact group comprises quiet contact chip, it is characterized in that described moving contacting plate top offers groove, described moving contacting plate top is made to form the first cantilever arranged side by side and the second cantilever, the first described cantilever top is fixedly installed auxiliary moving contact, the top of the second described cantilever is fixedly installed initiatively contact, the top of described quiet contact chip is fixedly installed the main fixed contact corresponding with described active contact and the auxiliary fixed contact corresponding with described auxiliary moving contact.
The material of described auxiliary fixed contact and described auxiliary moving contact is tungsten, and like this, the contact using tungsten material to make has outstanding electrical property: arc ablation resistance, the refractory property are good; The metal surface evaporation caused by electric heating effect, transfer, consumption are less; Breaking current ability is strong; And there is good abrasion resistance properties, be auxiliary fixed contact and described auxiliary moving contact optimal selection; In addition, it is cheap that tungsten material compares other metal or alloy material price, reduces cost.
The thickness of the described active contact described in auxiliary moving contact Thickness Ratio is large and thickness difference α is 0.05mm ~ 0.2mm, main fixed contact described in the Thickness Ratio of described auxiliary fixed contact thick large and thickness difference β is 0.05mm ~ 0.2mm, auxiliary fixed contact and auxiliary moving contact form auxiliary contact sets, main fixed contact forms main contacts group with active contact, the first moment when relay adhesive, auxiliary contact sets with prior to the conducting of main contacts group, surge current is by auxiliary contact sets, along with the further adhesive of contact, main contacts group only passes through steady-state current, avoid the overload of main contacts group, also the contact overtravel needed for the adhesive of main contacts group has been ensured.
In order to ensure that main contacts group maintains necessary contact force when adhesive, the width of the first described cantilever is less than the width of the second cantilever, with the Contact reaction-force produced after reducing auxiliary contact sets adhesive touching on the impact of the contact force of main contacts.
The material of described moving contacting plate and described quiet contact chip is beryllium-bronze; The conduction that beryllium-bronze is good, heat conductivility and elasticity are the optimal selections of moving contacting plate and quiet contact chip material.
Compared with prior art, the utility model has the advantage of: because moving contacting plate top offers groove, form the first cantilever arranged side by side and the second cantilever, first cantilever top is fixedly installed auxiliary moving contact, the top of the second cantilever is fixedly installed initiatively contact, the top of quiet contact chip is fixedly installed the main fixed contact corresponding with active contact and the auxiliary fixed contact corresponding with auxiliary moving contact, shunts, effectively prevents because surge current causes contact bonding for auxiliary tactile group to main group of touching.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model embodiment is applied in magnetic latching relay;
Fig. 2 is the structural representation of the utility model embodiment;
Fig. 3 is the structural representation of the dynamic contact group in the utility model embodiment;
Fig. 4 is that the A-A of Fig. 2 is to cutaway view;
Fig. 5 is the structural representation of the quiet contact group in the utility model embodiment;
Fig. 6 is that the B-B of Fig. 4 is to cutaway view.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment one, as shown in Figures 1 to 4, a kind of have the relay contacts group preventing contact binding function, comprise dynamic contact group 1 and contact group 2 with quiet, dynamic contact group 1 comprises moving contacting plate 11, quiet contact group 2 comprises quiet contact chip 21, moving contacting plate 11 top offers groove 111, make the first cantilever 112 and the second cantilever 113 that on moving contacting plate, 11 formation is arranged side by side, first cantilever 112 top is fixedly installed auxiliary moving contact 13, the top of the second cantilever 113 is fixedly installed initiatively contact 14, the top of quiet contact chip 21 is fixedly installed the main fixed contact 22 corresponding with active contact 14 and the auxiliary fixed contact 23 corresponding with auxiliary moving contact 13, the material of auxiliary fixed contact 23 and auxiliary moving contact 13 is tungsten, the thickness of auxiliary moving contact 13 Thickness Ratio active contact 14 is large and thickness difference α is 0.1mm, the thickness of the main fixed contact 22 of Thickness Ratio of auxiliary fixed contact 23 is large and thickness difference β is 0.1mm, the width of the first cantilever 112 is less than the width of the second cantilever 113, the material of moving contacting plate 11 and quiet contact chip 12 is beryllium-bronze.
In above-described embodiment, the initiatively thickness difference α of contact 14 and auxiliary moving contact 13, main fixed contact 22 all can be selected in 0.05mm ~ 0.2mm according to the different demands of the factor such as contact force and contact overtravel from the thickness difference β of auxiliary fixed contact 23.
Claims (5)
1. one kind has the relay contacts group preventing contact binding function, comprise dynamic contact group and contact group with quiet, described dynamic contact group comprises moving contacting plate, described quiet contact group comprises quiet contact chip, it is characterized in that described moving contacting plate top offers groove, described moving contacting plate top is made to form the first cantilever arranged side by side and the second cantilever, the first described cantilever top is fixedly installed auxiliary moving contact, the top of the second described cantilever is fixedly installed initiatively contact, the top of described quiet contact chip is fixedly installed the main fixed contact corresponding with described active contact and the auxiliary fixed contact corresponding with described auxiliary moving contact.
2. according to claim 1 a kind ofly have the relay contacts group preventing contact binding function, it is characterized in that the material of described auxiliary fixed contact and described auxiliary moving contact is tungsten.
3. according to claim 1 a kind ofly have the relay contacts group preventing contact binding function, it is characterized in that the thickness of the active contact described in Thickness Ratio of described auxiliary moving contact is large and thickness difference α is 0.05mm ~ 0.2mm, the main fixed contact described in the Thickness Ratio of described auxiliary fixed contact thick large and thickness difference β is 0.05mm ~ 0.2mm.
4. according to claim 1 a kind ofly have the relay contacts group preventing contact binding function, it is characterized in that the width of the first described cantilever is less than the width of the second cantilever.
5. according to claim 1 a kind ofly have the relay contacts group preventing contact binding function, it is characterized in that the material of described moving contacting plate and described quiet contact chip is beryllium-bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160499.2U CN204464182U (en) | 2015-03-20 | 2015-03-20 | A kind of have the relay contacts group preventing contact binding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160499.2U CN204464182U (en) | 2015-03-20 | 2015-03-20 | A kind of have the relay contacts group preventing contact binding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464182U true CN204464182U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160499.2U Active CN204464182U (en) | 2015-03-20 | 2015-03-20 | A kind of have the relay contacts group preventing contact binding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464182U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107924790A (en) * | 2015-10-29 | 2018-04-17 | 欧姆龙株式会社 | Relay |
| US10784055B2 (en) | 2015-10-29 | 2020-09-22 | Omron Corporation | Contact piece unit and relay |
| US10811205B2 (en) | 2015-10-29 | 2020-10-20 | Omron Corporation | Relay |
-
2015
- 2015-03-20 CN CN201520160499.2U patent/CN204464182U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107924790A (en) * | 2015-10-29 | 2018-04-17 | 欧姆龙株式会社 | Relay |
| US20190013172A1 (en) | 2015-10-29 | 2019-01-10 | Omron Corporation | Relay |
| CN107924790B (en) * | 2015-10-29 | 2019-11-26 | 欧姆龙株式会社 | Relay |
| US10650996B2 (en) | 2015-10-29 | 2020-05-12 | Omron Corporation | Relay |
| US10784055B2 (en) | 2015-10-29 | 2020-09-22 | Omron Corporation | Contact piece unit and relay |
| US10811205B2 (en) | 2015-10-29 | 2020-10-20 | Omron Corporation | Relay |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |