CN202998039U - A normally-opened and normally-closed solid-state relay - Google Patents
A normally-opened and normally-closed solid-state relay Download PDFInfo
- Publication number
- CN202998039U CN202998039U CN 201220651728 CN201220651728U CN202998039U CN 202998039 U CN202998039 U CN 202998039U CN 201220651728 CN201220651728 CN 201220651728 CN 201220651728 U CN201220651728 U CN 201220651728U CN 202998039 U CN202998039 U CN 202998039U
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- normally
- state relay
- opened
- solid
- closed solid
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Abstract
The utility model provides a normally-opened and normally-closed solid-state relay comprising an input module, an optical coupler control module, and an electronic triggering module. The electronic triggering module uses transistors as switching devices. Adding fully-electronic auxiliary contacts, the normally-opened and normally-closed solid-state relay achieves switching speed with ten thousand times per second by using a characteristic of fast switching speed of the transistors. The normally-opened and normally-closed solid-state relay is suitable for triggering different silicon controlled rectifiers from 10A to 800A and can be expanded to AC relays from 10A to 800A and IGBT modules.
Description
Technical field
The utility model relates to the electron electric power technical field, particularly a kind of normally-open normally-close solid-state relay.
Background technology
Normally-open normally-close is contactor and relay requisite auxiliary contact, especially relay, and it can be used for programming Control, carries out interlock protection and the driving of the setting of various work automations controls.This product replaces traditional solid-state relay, is used for the interlock protection of the setting that automation controls and when driving, speed is faster, rises to tens microseconds from a few tens of milliseconds, is suitable for various rapid-actions application scenarios.At present, on market, all solid-state relay majorities are the solid-state relays of often opening, and therefore function singleness, needs to develop the solid-state relay with normally-open normally-close, to replace the function of traditional contactor; In addition, traditional solid-state relay is mechanical type normally-open normally-close formula auxiliary contact, and during work, it can produce very large noise, also can produce spark simultaneously, therefore greatly reduces useful life.
The utility model content
The purpose of this utility model is in order to overcome the above problems, a kind of normally-open normally-close solid-state relay to be provided, and adopts the electronic type auxiliary contact, and is fast to realize low-voltage control output end high-voltage large current, ON time.
For reaching the purpose of this utility model, normally-open normally-close solid-state relay of the present utility model comprises input module, optocoupler control module and electronics trigger module, and described electronics trigger module adopts transistor as switching device.The beneficial effects of the utility model are, described normally-open normally-close solid-state relay increases the auxiliary contact of full electronic, utilizes the fireballing characteristics of transistor switch, make the switching speed of this product can be up to per second 10,000 times; Be applicable to trigger the different controllable silicon of 10A-800A, this product can be expanded to 10A-800A AC relay and IGBT module (IGBT module).
Description of drawings
By the detailed description below in conjunction with accompanying drawing, aforesaid purpose, the feature and advantage with other of the utility model will become apparent.Wherein:
Circuit theory diagrams when Figure 1 shows that often being opened by normally closed realization of normally-open normally-close solid-state relay of the present utility model;
Figure 2 shows that normally-open normally-close solid-state relay of the present utility model realizes the circuit theory diagrams when normally closed;
Figure 3 shows that the external cabling schematic diagram when normally-open normally-close solid-state relay of the present utility model is used.
Embodiment
The normally-open normally-close solid-state relay of an embodiment of the present utility model comprises input module, optocoupler control module and electronics trigger module, and described electronics trigger module adopts transistor as switching device.
External cabling schematic diagram when using in conjunction with normally-open normally-close solid-state relay of the present utility model shown in Figure 3, the dc control signal that do not have as " A+, A-", as shown in Figure 1, not conducting of optocoupler U11, Q8, also not conducting of Q9 at this moment, Q7 is in conducting state, thereby makes transistor Q11 obtain trigger current and conducting.As " A+, A-" when control signal is arranged, optocoupler U11 conducting, this moment Q8, Q9 conducting, not conducting of Q7, Q11 does not obtain trigger voltage and turn-offs, thereby realizes that normally closed change often opens.
As " B+, B-" when dc control signal is arranged, as shown in Figure 2, triode Q1, Q2 conducting, optocoupler U7 conducting, transistor Q12 obtains the trigger current conducting, and load forms a loop.As " B+, B-" when there is no dc control signal, triode Q1, not conducting of Q2, not conducting of optocoupler U7 conducting, transistor Q12 can not get triggering and makes current lead-through, thus not conducting, relay is realized normally closed function.
Also contactless electronic beam switch although compare general solid-state relay, but the normally-open normally-close auxiliary contact that there is no electronic type, normally-open normally-close solid-state relay of the present utility model increases the auxiliary contact of full electronic, utilize the fireballing characteristics of transistor switch, make the switching speed of this product can be up to per second 10,000 times; By the different controllable silicon of trigger current, be applicable to trigger the different controllable silicon of 10A-800A, this product can be expanded to the 10A-800A AC relay with 25 and the IGBT module.
The utility model is not limited to described embodiment; those skilled in the art is not breaking away from spirit of the present utility model namely openly in scope; still can do some corrections or change, therefore rights protection scope of the present utility model is as the criterion with claims restricted portion.
Claims (1)
1. a normally-open normally-close solid-state relay, is characterized in that, it comprises input module, optocoupler control module and electronics trigger module, and described electronics trigger module adopts transistor as switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651728 CN202998039U (en) | 2012-12-02 | 2012-12-02 | A normally-opened and normally-closed solid-state relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651728 CN202998039U (en) | 2012-12-02 | 2012-12-02 | A normally-opened and normally-closed solid-state relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998039U true CN202998039U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651728 Expired - Fee Related CN202998039U (en) | 2012-12-02 | 2012-12-02 | A normally-opened and normally-closed solid-state relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979135A (en) * | 2014-04-03 | 2015-10-14 | 商晓 | Contactless contactor with auxiliary contact |
-
2012
- 2012-12-02 CN CN 201220651728 patent/CN202998039U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979135A (en) * | 2014-04-03 | 2015-10-14 | 商晓 | Contactless contactor with auxiliary contact |
| CN104979135B (en) * | 2014-04-03 | 2017-06-06 | 商晓 | A kind of Contactless contactor with auxiliary contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131202 |