CN203136277U - Electronic switch - Google Patents
Electronic switch Download PDFInfo
- Publication number
- CN203136277U CN203136277U CN 201320126298 CN201320126298U CN203136277U CN 203136277 U CN203136277 U CN 203136277U CN 201320126298 CN201320126298 CN 201320126298 CN 201320126298 U CN201320126298 U CN 201320126298U CN 203136277 U CN203136277 U CN 203136277U
- Authority
- CN
- China
- Prior art keywords
- relay
- electronic switch
- terminal
- power supply
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an electronic switch. The electronic switch comprises a power supply circuit, a main control circuit, a relay drive circuit and a relay which are sequentially connected. The relay is a single-pole double-throw relay. The public terminal of the relay is connected with a load end. The normally-close terminal of the relay is connected with a power supply live wire terminal. The normally-open terminal of the relay is connected with an emergency power supply terminal. An initial current suppression circuit is connected between the normally-open terminal of the relay and the emergency power supply terminal. By suppressing an initial current flowing through the emergency power supply terminal, the electronic switch achieves rapid arc extinguishing effects and thus effectively prevents influence of continuous arc discharge on the relay and a load. The continuous arc discharge is caused when a switch is finished but the arc generated during the switching process is not extinguished. Furthermore, the electronic switch has the advantages of working reliability and stability.
Description
Technical field
The utility model relates to electronic switch, particularly a kind of electronic switch of meeting an urgent need and starting by force.
Background technology
In order to take into account hommization and energy-conservation, between the building ladder or the illumination of passage extensively adopt such as infrared induction, acousto-optic control, touch electron-like switch such as time-delay.The common feature of this class switch is: open when satisfying trigger condition, close automatically after continuity a period of time.For security against fire, this electron-like switch is required to be designed to: except fire line terminal (L end) and face terminals (A end), must have enforced opening control terminal (C end).During installation, the enforced opening control terminal of all switches (C end) is connected in parallel, and (C end) do not connect power supply at ordinary times, and electronic switch can normal switch.Need throw light on when ensureing when running into fire-fighting or other accidents, enforced opening control terminal (C end) can be access in power supply, and all lighting loads that are in closed condition will be forced to open, and throws light on guaranteeing.It is switch element that early stage electronic switch extensively adopts controllable silicon, and its shortcoming is: heating is big, not anti-rush of current, and defective workmanship can't detect.In view of the silicon controlled shortcoming, increasing electronic switch adopts relay as switch element, realizes that load end switches between live wire and the enforced opening control terminal (C end).Yet, can produce electric arc during the contact disjunction of electronic switch, for example: directly adopt common single-pole double throw electronic switch control (A end) between (L end) and (C end), to switch and connect, can be because electric arc extinguish, the electric current of (L end) flows through other that be connected in parallel by electric arc through (C end) and is in the switch of closed condition, the lamp that causes being correlated with is lighted, till arc extinction (L end) and (C end) are returned insulation.Be embodied in: the moment that lamp extinguishes, entire building is in the lamp that extinguishes state and can dodges simultaneously.
The utility model content
For overcoming the shortcomings and deficiencies of above-mentioned prior art, the utility model provides a kind of electronic switch that can effectively contain the electric arc that produces when switching because of switch.
Technical solution adopted in the utility model is:
A kind of electronic switch, comprise the power supply circuits, main control circuit, relay drive circuit and the relay that connect successively, described relay is the single-pole double throw relay, and its public terminal connects load end, normally closed terminal connects the power firestreak terminals, and Chang Kaiduan connects the emergency service supply terminals; Be connected to initial current between described relay normally open terminal and the emergency service supply terminals and suppress circuit.
Preferably, described initial current suppresses circuit employing negative tempperature coefficient thermistor.
Preferably, described initial current suppresses circuit employing inductance.
Compared with prior art, the obtained beneficial effect of the utility model has:
(1) electronic switch described in the utility model is by the initial current of the emergency service power supply terminal that suppresses to flow through, reach the effect of rapid arc extinguishing, thereby also extinguishing, the electric arc that produces when effectively containment is switched because of switch just do not finish switching, the lasting arcing that causes is to the influence of relay and load, reliable operation, stable;
(2) described switching circuit uses relay to be switch element, has big capacity, and is shock-resistant, and etc. characteristics, and antijamming capability is strong, and flexible and convenient to use, cost is low.
Description of drawings
Fig. 1 is the construction module figure of electronic switch described in the utility model;
Fig. 2 is the structural representation of a kind of embodiment of electronic switch described in the utility model;
Fig. 3 is the structural representation of the another kind of embodiment of electronic switch described in the utility model.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with specific embodiment and accompanying drawing the utility model theory of constitution is described in further detail.
As shown in Figure 1, the electronic switch that the utility model discloses, comprise the power supply circuits, main control circuit, relay drive circuit and the relay K 1 that connect successively, described relay is the single-pole double throw relay, its public terminal connects load end A, normally closed terminal connects power firestreak terminals L, and Chang Kaiduan connects emergency service supply terminals C; Be connected to initial current between described relay normally open terminal and the emergency service supply terminals C and suppress circuit.Described main control circuit can according to different uses (for example: sound, photocontrol, infrared induction, remote control, program control, by key control etc.) intelligent control chip that adopts different transducer or communication element and single-chip microcomputers or be similar to single-chip microcomputer combines.
Embodiment 1
As shown in Figure 2, the electronic switch that the utility model discloses, comprise the power supply circuits, main control circuit, relay drive circuit and the relay K 1 that connect successively, described relay is the single-pole double throw relay, its public terminal connects load end A, normally closed terminal connects power firestreak terminals L, and Chang Kaiduan connects emergency service supply terminals C; Be connected to a negative tempperature coefficient thermistor NTC between described relay normally open terminal and the emergency service supply terminals C.
Described relay drive circuit comprises transistor Q1, resistance R 1 and diode D1, and described diode D1 is connected in parallel on the input of relay, and diode D1 negative pole end voltage is VCC.
Described main control circuit can according to different uses (for example: sound, photocontrol, infrared induction, remote control, program control, by key control etc.) intelligent control chip that adopts different transducer or communication element and single-chip microcomputers or be similar to single-chip microcomputer combines.
When transducer sense or the required corresponding signal of communication element, control chip sends control command and gives relay drive circuit, drive relay switch and switch to Chang Kaiduan from normally closed terminal, the electric arc that in handoff procedure, produces, with power firestreak terminals L and emergency service supply terminals C conducting, but emergency service supply terminals C is connected to a negative tempperature coefficient thermistor NTC, NTC resistance when temperature is low is bigger, can suppress the to flow through initial current of emergency service power supply terminal reaches the effect of rapid arc extinguishing.
Embodiment 2
As shown in Figure 2, the electronic switch that the utility model discloses, comprise the power supply circuits, main control circuit, relay drive circuit and the relay K 1 that connect successively, described relay is the single-pole double throw relay, its public terminal connects load end A, normally closed terminal connects power firestreak terminals L, and Chang Kaiduan connects emergency service supply terminals C; Be connected to an inductance L 1 between described relay normally open terminal and the emergency service supply terminals C.
Described relay drive circuit comprises transistor Q1, resistance R 1 and diode D1, and described diode D1 is connected in parallel on the input of relay, and diode D1 negative pole end voltage is VCC.
Described main control circuit can according to different uses (for example: sound, photocontrol, infrared induction, remote control, program control, by key control etc.) intelligent control chip that adopts different transducer or communication element and single-chip microcomputers or be similar to single-chip microcomputer combines.
When transducer sense or the required corresponding signal of communication element, control chip sends control command and gives relay drive circuit, drive relay switch and switch to Chang Kaiduan from normally closed terminal, the electric arc that in handoff procedure, produces, with power firestreak terminals L and emergency service supply terminals C conducting, but emergency service supply terminals C is connected to an inductance L 1, inductance L 1 is bigger in conducting moment resistance, can suppress the to flow through initial current of emergency service power supply terminal reaches the effect of rapid arc extinguishing.
Need to prove, not breaking away under the utility model design prerequisite its any minor variations of doing and being equal to replacement, all should belong to protection range of the present utility model.
Claims (3)
1. electronic switch, comprise the power supply circuits, main control circuit, relay drive circuit and the relay that connect successively, described relay is the single-pole double throw relay, its public terminal connects load end, normally closed terminal connects the power firestreak terminals, and Chang Kaiduan connects the emergency service supply terminals; It is characterized in that: be connected to initial current between described relay normally open terminal and the emergency service supply terminals and suppress circuit.
2. electronic switch according to claim 1 is characterized in that: described initial current inhibition circuit employing negative tempperature coefficient thermistor.
3. electronic switch according to claim 1 is characterized in that: described initial current inhibition circuit employing inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126298 CN203136277U (en) | 2013-03-20 | 2013-03-20 | Electronic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126298 CN203136277U (en) | 2013-03-20 | 2013-03-20 | Electronic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203136277U true CN203136277U (en) | 2013-08-14 |
Family
ID=48944207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126298 Expired - Lifetime CN203136277U (en) | 2013-03-20 | 2013-03-20 | Electronic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203136277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714035A (en) * | 2018-04-11 | 2019-05-03 | 惠州祺瑞电工有限公司 | A kind of electronic switch control method of interrelated time delayed turn-off |
-
2013
- 2013-03-20 CN CN 201320126298 patent/CN203136277U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714035A (en) * | 2018-04-11 | 2019-05-03 | 惠州祺瑞电工有限公司 | A kind of electronic switch control method of interrelated time delayed turn-off |
| CN109714035B (en) * | 2018-04-11 | 2023-09-08 | 惠州祺瑞电工有限公司 | Electronic switch control method for interrelated time delay turn-off |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104883775B (en) | Sensing lamp and corresponding switch | |
| CN103325591B (en) | The arc-control device comprising gate-controlled switch of direct current mechanical switch and arc-suppressing method | |
| CN104968124A (en) | Fire emergency illumination distribution and control circuit | |
| CN203136277U (en) | Electronic switch | |
| CN102761324B (en) | Electric delay switch | |
| CN101980405A (en) | Multi-purpose time delay power supply socket manufactured by using time base circuit | |
| CN204793442U (en) | Multiple socket -outlet with automatically function of cooling down | |
| CN205049906U (en) | Intelligent switch | |
| CN205809581U (en) | A kind of intelligent switch | |
| CN202650988U (en) | Electronic switch | |
| CN206574788U (en) | Battery core overtemperature protection system and electronic cigarette for electronic cigarette | |
| CN201352783Y (en) | Electronic switching device | |
| CN204905873U (en) | Intelligent compound switch | |
| CN204984065U (en) | A five -wire system controlling means for electric door closer | |
| CN202679334U (en) | A electronic switch which can be forcedly started in emergency | |
| CN205299640U (en) | Unmanned device of dying of reporting to police of guarding of gas -cooker | |
| CN103631163A (en) | Switch circuit for alternating current power supply | |
| CN204518180U (en) | Automatic extinguishing device | |
| CN202663373U (en) | Electronic time-delay switch | |
| CN204984066U (en) | A four -wire system controlling means for electric door closer | |
| CN202261951U (en) | Sound, light and hand control delay switch | |
| CN203015235U (en) | Sound and light control lamp with fire-fighting forcible startup function | |
| CN202276330U (en) | Water-boiling automatic powering-off controller for electrothermal cup | |
| CN201345765Y (en) | Multi-way touch timing switch | |
| CN201113377Y (en) | Self-restoration type electronic safety wire circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170302 Address after: Hui Tai Industrial Park in Guangdong province Huizhou city 516007 District No. 63 (Hengxin company plant) a building Patentee after: HUIZHOU QIRUI ELECTRIC Co.,Ltd. Address before: 516007 Huizhou City, Huizhou province Huicheng Shuikou Town Health International New Town C1-08 Patentee before: Chen Tao |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |