CN202535329U - A passive constantly-closed solid-state relay - Google Patents
A passive constantly-closed solid-state relay Download PDFInfo
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- CN202535329U CN202535329U CN2011205388551U CN201120538855U CN202535329U CN 202535329 U CN202535329 U CN 202535329U CN 2011205388551 U CN2011205388551 U CN 2011205388551U CN 201120538855 U CN201120538855 U CN 201120538855U CN 202535329 U CN202535329 U CN 202535329U
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- state relay
- solid
- constantly
- low
- passive
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Abstract
The utility model relates to the technical field of a solid-state relay and especially relates to a passive constantly-closed solid-state relay. The passive constantly-closed solid-state relay comprises a low-current constantly-closed solid-state relay, a low-current constantly-opened solid-state relay, and an optical coupling loop. The low-current constantly-closed solid-state relay and the low-current constantly-opened solid-state relay both comprise control signal input ends, rectifying and voltage-stabilizing circuits, optical coupling trigging and controlling circuits, and RC absorbing and protecting loops. The two ends of the optical coupling loop are connected with the low-current constantly-closed solid-state relay and the low-current constantly-opened solid-state relay, respectively. With large controlling capacity, the passive constantly-closed solid-state relay achieves on/off of strong electricity controlled by weak electricity, and has a low voltage releasing protection for security and assurance.
Description
Technical field
The utility model relates to the relay technical field, particularly a kind of passive normally-closed formula solid-state relay.
Background technology
In automatic field, some relays can not satisfy the needs of high automation gradually at present, and relay only is applied in control loop and protects in the loop, as a switch of often opening, just realizes the function of crawl; The contact capacity of relay is smaller simultaneously; Can't satisfy the control needs of equipment; To this phenomenon need design a kind of can totalizing relay and the advantage of contactor, realize controlling to connect perhaps cutting off forceful electric power with light current, have the low-voltage release guard and control relay capacious.
The utility model content
To prior art problems, the utility model provides a kind of passive normally-closed formula solid-state relay, realize controlling connection or cutting off forceful electric power, but also have the low-voltage release guard with light current, play the effect of security insurance; It is big to control capacity simultaneously.
For reaching the purpose of the utility model; What a kind of passive normally-closed formula solid-state relay of the utility model comprised the normally closed solid-state relay of little electric current, little electric current often opens solid-state relay and optocoupler loop, and the solid-state relay of often opening of the normally closed solid-state relay of said little electric current and little electric current includes signal input end, regulator rectifier circuit, optocoupler trigger control circuit and RC and absorbs the protection loop; The two ends in said optocoupler loop are connected with the normally closed solid-state relay of little electric current and the solid-state relay of often opening of little electric current respectively.
The operation principle of the passive normally-closed formula solid-state relay of the utility model is: when the main loop circuit access failure, the normally closed solid-state relay of little electric current is in conducting state, and other switching point then is in off-state; When main loop circuit was connected, the former solid-state relay that is in closure state broke off, and the former solid-state relay of often opening that is in off-state then changes conducting state into; When often opening solid-state relay work, normally closed solid-state relay triggerless, promptly normally closed solid-stately do not work; When operating, utilize described auxiliary direct current optocoupler loop to break off major loop.
The passive normally-closed formula solid-state relay of the utility model can be used as a kind of double-standard switching device; As the control motor; Also can be used for controlling other electrical load; Like electric equipments such as electric heater, illumination, electric welding machine, capacitor, shop equipment, electric heater, machine-tool and various kinds electric power units, be mainly used in the protection or various manufacturing machine automatic control circuit of electric equipment.
The beneficial effect of the utility model is, said passive normally-closed formula solid-state relay combines the advantage of relay and contactor, can realize controlling with light current and connect or cut off forceful electric power, but also have the low-voltage release guard, plays the effect of security insurance.It is big to control capacity simultaneously, can be used for the big equipment of frequent starting electric current; Also can be used for the automatic operation of far distance controlled power consumption equipment and stop.
Description of drawings
Through the detailed description below in conjunction with accompanying drawing, aforesaid purpose, the feature and advantage with other of the utility model will become obvious.Wherein:
Shown in Figure 1 is the passive normally-closed formula solid-state relay composition structural representation of the utility model;
Shown in Figure 2 is the circuit theory diagrams of the passive normally-closed formula solid-state relay of the utility model.
Embodiment
The passive normally-closed formula solid-state relay of the utility model as shown in Figure 1 is formed structural representation; What the passive normally-closed formula solid-state relay of an embodiment of the utility model comprised the normally closed solid-state relay of little electric current, little electric current often opens solid-state relay and optocoupler loop, and the solid-state relay of often opening of the normally closed solid-state relay of said little electric current and little electric current includes signal input end, regulator rectifier circuit, optocoupler trigger control circuit and RC and absorbs the protection loop; The two ends in said optocoupler loop are connected with the normally closed solid-state relay of little electric current and the solid-state relay of often opening of little electric current respectively.
Refer again to the circuit theory diagrams of the passive normally-closed formula solid-state relay of the utility model shown in Figure 2; The operation principle of the passive normally-closed formula solid-state relay of the utility model is: when the main loop circuit access failure; The normally closed solid-state relay of little electric current is in conducting state, and other switching point then is in off-state; When main loop circuit was connected, the former solid-state relay that is in closure state broke off, and the former solid-state relay of often opening that is in off-state then changes conducting state into; When often opening solid-state relay work, normally closed solid-state relay triggerless, promptly normally closed solid-stately do not work; Described auxiliary direct current optocoupler loop is used for disconnection/conducting major loop.
The passive normally-closed formula solid-state relay of the utility model combines the advantage of relay and contactor, can realize controlling with the optocoupler loop of light current and connect or cut off the forceful electric power major loop, but also have the low-voltage release guard, plays the effect of security insurance; Its control capacity is big, can be used for the big equipment of frequent starting electric current; Also can be used for the automatic operation of far distance controlled power consumption equipment and stop.
The utility model is not limited to described embodiment; Those skilled in the art promptly discloses in the scope in the spirit that does not break away from the utility model; Still can do some corrections or change, so the rights protection scope of the utility model is as the criterion with claims restricted portion.
Claims (1)
1. passive normally-closed formula solid-state relay; It is characterized in that; What it comprised the normally closed solid-state relay of little electric current, little electric current often opens solid-state relay and optocoupler loop, and the solid-state relay of often opening of the normally closed solid-state relay of said little electric current and little electric current includes signal input end, regulator rectifier circuit, optocoupler trigger control circuit and RC and absorbs the protection loop; The two ends in said optocoupler loop are connected with the normally closed solid-state relay of little electric current and the solid-state relay of often opening of little electric current respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205388551U CN202535329U (en) | 2011-12-20 | 2011-12-20 | A passive constantly-closed solid-state relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205388551U CN202535329U (en) | 2011-12-20 | 2011-12-20 | A passive constantly-closed solid-state relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202535329U true CN202535329U (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205388551U Expired - Fee Related CN202535329U (en) | 2011-12-20 | 2011-12-20 | A passive constantly-closed solid-state relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202535329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079280B (en) * | 2014-07-03 | 2018-02-02 | 库顿电子科技（厦门）有限公司 | A kind of solid-state relay of high withstand voltage |
-
2011
- 2011-12-20 CN CN2011205388551U patent/CN202535329U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079280B (en) * | 2014-07-03 | 2018-02-02 | 库顿电子科技（厦门）有限公司 | A kind of solid-state relay of high withstand voltage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIU DEJIN Effective date: 20121108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214000 WUXI, JIANGSU PROVINCE TO: 214161 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121108 Address after: Combined with Jiangsu province Wuxi City Road 214161 lake shore Hu Dai Industrial Park No. 10, C Building 5 floor Patentee after: Yin Chenzhong Patentee after: Liu Dejin Address before: 214000 Jinshan north science and Technology Industrial Park, No. 888 Jianghai West Road, Jiangsu, Wuxi Patentee before: Yin Chenzhong |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20201220 |