CN104714170B - Relay and self- recoverage protective tube burn in test circuit - Google Patents
Relay and self- recoverage protective tube burn in test circuit Download PDFInfo
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- CN104714170B CN104714170B CN201410727354.6A CN201410727354A CN104714170B CN 104714170 B CN104714170 B CN 104714170B CN 201410727354 A CN201410727354 A CN 201410727354A CN 104714170 B CN104714170 B CN 104714170B
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- relay
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- triode
- led
- time timer
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Abstract
The invention provides a kind of relay and self- recoverage protective tube burn in test circuit, including a D.C. regulated power supply, one time timer and first group of electronic device, first group of electronic device includes a storage counter, one triode, two adjustable cement resistors and a relay, time timer is one square-wave signal of base stage to triode, triode is set to be in cut-off and full conjunction state, relay is allowed to be operated in adhesive and off-state, when time timer sends negative half-cycle signal, triode is in cut-off state, relay does not work, the normally opened pin closure in 4th contact and the 5th contact, now the 2nd LED is bright, there is provided trigger voltage to storage counter simultaneously starts counting up storage counter.The program leads to time timer and provides control signal change, realizes and to relay particular components burn-in test, reduces because element fault causes the security hidden trouble of appearance.
Description
Technical field
The present invention relates to electronic circuit field, more particularly to relay and self- recoverage protective tube burn in test circuit.
Background technology
Relay is one of most element of modern electronics dosage, easily occurs aging after a certain period of use time and shows
As program passage time timer provides control signal change, realizes to relay particular components burn-in test, reduces because of member
Part failure causes the security hidden trouble occurred.
The content of the invention
In order to solve problem in the prior art, the invention provides a kind of relay and self- recoverage protective tube burn-in test electricity
Road, including a D.C. regulated power supply, a time timer and first group of electronic device, first group of electronic device include one
Individual storage counter, a triode, two adjustable cement resistors and a relay, time timer are the bases to triode
The square-wave signal of pole one, triode is in cut-off and full conjunction state, allow relay to be operated in adhesive and off-state, work as the time
When timer sends negative half-cycle signal, triode is in cut-off state, and relay does not work, and the 4th contact and the 5th contact are normally opened
Pin closes, and now the 2nd LED is bright, while providing trigger voltage to storage counter starts counting up storage counter, works as the time
During the positive half-cycle signal of timer, triode is full to be closed, relay adhesive, the 3rd contact of relay and the 5th contact closure, and first
LED is bright.
As a further improvement on the present invention, the time timer is by the base stages of first resistor R1 connecting triodes,
The grounded emitter of triode, the collector connection relay of triode, connect between the first contact and the second contact of relay
A diode is connect, the first contact of relay is connected with D.C. regulated power supply, storage counter one end connection DC voltage-stabilizing electricity
Source, the other end connect the 4th contact of relay, and the 3rd contact of relay connects an adjustable cement resistor by a fuse
And the first LED, adjustable cement resistor and the first LED are parallel connection, the 4th contact of relay is connected another adjustable by fuse
Cement resistor and the 2nd LED, adjustable cement resistor and the 2nd LED are parallel connection.
As a further improvement on the present invention, the first LED branch road is provided with the 3rd resistor R3 of series connection with it.
As a further improvement on the present invention, the 2nd LED branch road is provided with the 4th resistance R4 of series connection with it.
As a further improvement on the present invention, in addition to second group of electronic device, second group of electronic device and first
The composition of group electronic device is identical with annexation.
As a further improvement on the present invention, the voltage of the D.C. regulated power supply is 24 volts.
The beneficial effects of the invention are as follows：The program leads to time timer and provides control signal change, realizes special to relay
Different component ageing test, is reduced because element fault causes the security hidden trouble of appearance.
Brief description of the drawings
Fig. 1 is invention relay and self- recoverage protective tube burn in test circuit structural representation；
Fig. 2 is the enlarged drawing of section components in Fig. 1；
Fig. 3 is the enlarged drawing of section components in Fig. 1.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
In order to detect relay quality problem, an easy burn in test circuit is made with actual conditions.
A kind of relay and self- recoverage protective tube burn in test circuit, including a D.C. regulated power supply, a time are determined
When device, first group of electronic device and second group of electronic device, first group of electronic device include a storage counter, one three
Pole pipe, two adjustable cement resistors and a relay.
The time timer passes through the base stage of first resistor R1 connecting triodes, the grounded emitter of triode, three poles
The collector connection relay of pipe, connects a diode between the first contact and the second contact of relay, and the of relay
One contact is connected with D.C. regulated power supply, storage counter one end connection D.C. regulated power supply, and the of other end connection relay
Four contacts, the 3rd contact of relay connect an adjustable cement resistor and the first LED by a fuse, adjustable cement resistor and
First LED is parallel connection, and the 4th contact of relay connects another adjustable cement resistor and the 2nd LED, adjusting water by fuse
Mud resistance and the 2nd LED are parallel connection.First LED branch road is provided with the 3rd resistor R3 of series connection with it.On 2nd LED branch road
The 4th resistance R4 provided with series connection with it.The composition and annexation phase of second group of electronic device and first group of electronic device
Together.
Operation principle:
Time timer is to be used to give triode Q1 base stages one square-wave signal, triode Q1 is in cut-off and closes shape with full
State, relay JK is allowed to be operated in adhesive and off-state.
When time timer sends negative half-cycle signal, Q1 is in cut-off state, and relay does not work, contact 4 and contact 5
Normally opened pin closure.Now LED2 is bright while providing trigger voltage to storage counter starts counting up storage counter, works as the time
During the positive half-cycle signal of timer, triode Q1 is full to be closed, and relay adhesive, the contact 3 and contact 5 of relay close, and LED1 is bright.
Timer can setting time be 1.5S, after setting circuit cycles work.When occur can not be counted during adhesive,
The number of stoppages can be checked, without other operations.
Self- recoverage protective tube, such as safe section XF110 protective tubes.Normal through electric current in 1.1A or so, time such as 1H are set,
Electric current is arrived adjustable cement resistor R2 and adjustable cement resistor R4 by protective tube and forms loop again, the electric current set, when
There is abnormal disconnection in protective tube, and voltage-stabilized power supply will show and not show and do not work in 1.1A or so and LED, so as to play aging and survey
Try the function of protective tube.
Send ceaselessly pulse square wave signal using time timer, be given to triode and make on-off action, finally control after
Whether electrical equipment adhesive and disconnection, analogue relay long-term use contact contact life-span number that is good and using.Relay is in disk
Face can be set multiple connection sockets and be used with extending.
When adjustable cement resistor be transferred to more than insurance tube current when, protective tube will automatic open circuit, observation voltage-stabilized power supply electricity
Stream displays whether normally with LED；When adjustable cement resistor is transferred to protective tube rated current, observation aging insurance is being set
Ageing time in disconnection whether occurs, as when LED, which is shown, not to work to be abnormal.
Using time timer pulse signal can free setting time, such as from -999 hours 0.1 second, realize aging relay
Adhesive and disconnection, simulate its service life；
Using time timer pulse signal can free setting time, such as from -999 hours 0.1 second, can test self- recoverage guarantor
The rated current test and blowout current test of danger pipe (PTC), it is easy to operate.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of relay and self- recoverage protective tube burn in test circuit, it is characterised in that：Including D.C. regulated power supply, one
Individual time timer and first group of electronic device, first group of electronic device include a storage counter, triode, two
Individual adjustable cement resistor and a relay, time timer are one square-wave signals of base stage to triode, are made at triode
In cut-off and full conjunction state, relay is allowed to be operated in adhesive and off-state, when time timer sends negative half-cycle signal, three
Pole pipe is in cut-off state, and relay does not work, and the normally opened pin closure in the 4th contact and the 5th contact, now the 2nd LED is bright, simultaneously
There is provided trigger voltage to storage counter starts counting up storage counter, when the positive half-cycle signal of time timer, triode
Full to close, relay adhesive, the 3rd contact of relay and the 5th contact closure, the first LED are bright；The time timer passes through
The base stage of one resistance R1 connecting triodes, the grounded emitter of triode, the collector connection relay of triode, relay
A diode is connected between first contact and the second contact, the first contact of relay is connected with D.C. regulated power supply, is deposited
Counter one end connects D.C. regulated power supply, and the other end connects the 4th contact of relay, and the 3rd contact of relay passes through one
Fuse connects an adjustable cement resistor and the first LED, and adjustable cement resistor and the first LED are parallel connection, and the 4th of relay touches
Point connects another adjustable cement resistor and the 2nd LED by fuse, and adjustable cement resistor and the 2nd LED are parallel connection.
2. relay according to claim 1 and self- recoverage protective tube burn in test circuit, it is characterised in that：First LED
Branch road be provided with series connection with it 3rd resistor R3.
3. relay according to claim 1 and self- recoverage protective tube burn in test circuit, it is characterised in that：2nd LED
Branch road be provided with series connection with it the 4th resistance R4.
4. the relay and self- recoverage protective tube burn in test circuit, its feature according to claims 1 to 3 any one exist
In：Also include second group of electronic device, the composition and annexation phase of second group of electronic device and first group of electronic device
Together.
5. relay according to claim 1 and self- recoverage protective tube burn in test circuit, it is characterised in that：The direct current
The voltage of voltage-stabilized power supply is 24 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727354.6A CN104714170B (en) | 2014-12-03 | 2014-12-03 | Relay and self- recoverage protective tube burn in test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727354.6A CN104714170B (en) | 2014-12-03 | 2014-12-03 | Relay and self- recoverage protective tube burn in test circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104714170A CN104714170A (en) | 2015-06-17 |
| CN104714170B true CN104714170B (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727354.6A Active CN104714170B (en) | 2014-12-03 | 2014-12-03 | Relay and self- recoverage protective tube burn in test circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471025A (en) * | 2018-11-09 | 2019-03-15 | 四川赛科安全技术有限公司 | The method that twin voltage realizes electromagnetic relay wireline inspection and feedback signal detection |
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| CN1057111A (en) * | 1990-05-28 | 1991-12-18 | 机械电子工业部第四十一研究所 | The monitor of the dynamic contact fault of monitoring contact class component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471025A (en) * | 2018-11-09 | 2019-03-15 | 四川赛科安全技术有限公司 | The method that twin voltage realizes electromagnetic relay wireline inspection and feedback signal detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104714170A (en) | 2015-06-17 |
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