CN207263824U - A kind of alternating current phases select breaker device - Google Patents
A kind of alternating current phases select breaker device Download PDFInfo
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- CN207263824U CN207263824U CN201721278901.2U CN201721278901U CN207263824U CN 207263824 U CN207263824 U CN 207263824U CN 201721278901 U CN201721278901 U CN 201721278901U CN 207263824 U CN207263824 U CN 207263824U
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- alternating current
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- breaker device
- current phases
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Abstract
Provide a kind of alternating current phases selection breaker device, including alternating current zero-detection circuit, delay/amendment circuit, setting circuit, execution circuit；Wherein described alternating current zero-detection circuit can carry out zero point detection to alternating current and export detection signal, this detection signal is the time reference of delay circuit；The delay/amendment circuit can carry out delay adjustments, and can set the correction time with compensation system action error；The setting circuit can make choice ac frequency, ac period；The execution circuit is able to carry out the order that delay circuit is sent, the action that simulation plug pulls off；Described device, by the alternating current phases for setting different delay times to determine different, can reach designated phase triggering de-energizing actions on the basis of exchanging electrical zero.
Description
Technical field
A kind of alternating current phases selection breaker device is the utility model is related to, belongs to electrical safety detection field.
Background technology
Residual voltage is the important test subject in electrical safety field, it is therefore an objective to when preventing unplugg, due to residual in equipment
The influence of complementary energy, human contact's plug are subject to unexpected electrically injury.Due to the periodicity of alternating current, the energy of alternating current and equipment
It is to carry out in the cycle that amount, which exchanges, and equipment internal electrical structure is different, and pulling off, the residual amount of energy in plug moment equipment is also different,
Therefore the amplitude of residual voltage is also different.The measurement of residual voltage is more at present to coordinate oscillograph to survey using the homemade frock that pulls off
Examination, but the detection data deficient in stability of this method, multiple measured value differ greatly.It is primarily due to the week of alternating current
Phase property fluctuation, alternating current are in energy exchange state with the moment inside equipment under test, are tested and set at different alternating current phases
Different for the dump energy possessed, manual simulation, which pulls off plug, cannot accurately control alternating current to be powered off at a certain phase
, manual operation power-off is random, causes remaining repeatedly measured value to differ greatly.
Therefore, it is necessary to a kind of Selecting phasing breaker device of maximum for facilitating tester to find out residual voltage.
Utility model content
The purpose of this utility model is to provide a kind of device that alternating current can be made to be powered off within the cycle at any phase.
The technical solution of the utility model is as follows.
A kind of alternating current phases select breaker device, including alternating current zero-detection circuit, delay/amendment circuit, setting
Circuit, execution circuit, it is characterised in that：
The alternating current zero-detection circuit can carry out zero point detection to alternating current and export detection signal, this detection letter
Number be delay circuit time reference；
The delay/amendment circuit can carry out delay adjustments, and can set the correction time with compensation system action error；
The setting circuit can make choice ac frequency, ac period；
The execution circuit is able to carry out the order that delay circuit is sent, the action that simulation plug pulls off；
Described device can pass through the exchange for setting different delay times to determine different on the basis of exchanging electrical zero
Electric phase, reaches designated phase triggering de-energizing actions.
Further, the alternating current zero-detection circuit is made of analog circuit.
Further, the delay/amendment circuit by singlechip group into.
Further, the ac frequency is 50Hz or 60Hz.
Further, the ac period is positive half cycle or negative half period.
Further, the alternating current voltage is 220V.
Further, the execution circuit is made of mechanical relay.
The utility model also provides a kind of device of measuring apparatus residual voltage, including oscillograph, and according to above skill
Alternating current phases selection breaker device any one of art scheme.
Further, the friendship of the alternating current zero-detection circuit and equipment under test of the alternating current phases selection breaker device
Galvanic electricity power supply circuit is connected, and the execution circuit of the alternating current phases selection breaker device controls the AC power supply circuit
Switch.
Further, the oscillograph is in parallel with the equipment under test.
By above technical scheme, the utility model, which provides one, can be such that 220V, 50Hz/60Hz alternating current appoints within the cycle
The device powered off at one phase.Facilitate tester to find out the maximum of residual voltage, make the measurement purpose of residual voltage more
By force, to overcome larger existing residual voltage test method blindness, numerical value poor repeatability the problem of.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model
Embodiment
As shown in Figure 1, a kind of alternating current phases selection breaker device, including alternating current zero-detection circuit, be delayed/repair
Positive circuit, set circuit, execution circuit, it is characterised in that：
The alternating current zero-detection circuit can carry out zero point detection to alternating current and export detection signal, this detection letter
Number be delay circuit time reference；
The delay/amendment circuit can carry out delay adjustments, and can set the correction time with compensation system action error；
The setting circuit can make choice ac frequency, ac period；
The execution circuit is able to carry out the order that delay circuit is sent, the action that simulation plug pulls off；
Described device can pass through the exchange for setting different delay times to determine different on the basis of exchanging electrical zero
Electric phase, reaches designated phase triggering de-energizing actions.
Further, the alternating current zero-detection circuit is made of analog circuit.
Further, the delay/amendment circuit by singlechip group into.
Further, the ac frequency is 50Hz or 60Hz.
Further, the ac period is positive half cycle or negative half period.
Further, the alternating current voltage is 220V.
Further, the execution circuit is made of mechanical relay.
The alternating current phases of the utility model select breaker device to power off Selecting phasing when for measuring residual voltage
Device, equipment under test, oscillograph couple as shown in Figure 1, i.e., the exchange electrical zero inspection of described alternating current phases selection breaker device
Slowdown monitoring circuit is connected with the AC power supply circuit of equipment under test, the execution circuit control of the alternating current phases selection breaker device
The switch K of the AC power supply circuit is made, the oscillograph is in parallel with the equipment under test.
After energization, switch K is in closure state, and equipment under test works normally, and specific detection process is as follows.
Step 1：Ac signal is converted into pulse signal by alternating current zero-detection circuit, and pulse signal is divided into two-way,
It is alternating current positive half cycle pulse signal all the way, is all the way alternating current negative half period pulse signal, the rising edge of pulse signal is zero point
Marker.
Step 2：According to detection needs, ac frequency (50Hz/60Hz), ac period are set in circuit is set
(positive half cycle/negative half period).
Step 3：Delay time is set in delay/amendment circuit, delay circuit receives positive half cycle/negative half period pulse
After signal, using the positive half cycle/negative half period pulse signal rising edge as starting point, plus delay time, along with the correction time, by this
Time signal is inputted to execution circuit.
Step 4：The actuating of relay in execution circuit, switch K are disconnected, alternating current are turned off, and oscillograph can be set to tested
It is standby to carry out residual voltage measurement.
Claims (10)
1. a kind of alternating current phases select breaker device, including alternating current zero-detection circuit, delay/amendment circuit, setting electricity
Road, execution circuit, it is characterised in that：
The alternating current zero-detection circuit can carry out zero point detection to alternating current and export detection signal, this detection signal is
The time reference of delay circuit；
The delay/amendment circuit can carry out delay adjustments, and can set the correction time with compensation system action error；
The setting circuit can make choice ac frequency, ac period；
The execution circuit is able to carry out the order that delay circuit is sent, the action that simulation plug pulls off；
Described device can determine different alternating current phases by setting different delay times on the basis of exchanging electrical zero
Position, reaches designated phase triggering de-energizing actions.
2. alternating current phases according to claim 1 select breaker device, it is characterised in that the exchange electrical zero detection
Circuit is made of analog circuit.
3. alternating current phases according to claim 1 select breaker device, it is characterised in that the delay/amendment circuit
By singlechip group into.
4. alternating current phases according to claim 1 select breaker device, it is characterised in that the ac frequency is
50Hz or 60Hz.
5. alternating current phases according to claim 1 select breaker device, it is characterised in that the ac period is just
Half cycle or negative half period.
6. alternating current phases according to claim 1 select breaker device, it is characterised in that the alternating current voltage is
220V。
7. alternating current phases according to claim 1 select breaker device, it is characterised in that the execution circuit is by machinery
Relay forms.
8. a kind of device of measuring apparatus residual voltage, including oscillograph, and according to any one of claim 1-7
Alternating current phases select breaker device.
9. the device of measuring apparatus residual voltage according to claim 8, it is characterised in that the alternating current phases selection
The alternating current zero-detection circuit of breaker device is connected with the AC power supply circuit of equipment under test, the alternating current phases choosing
The execution circuit for selecting breaker device controls the switch of the AC power supply circuit.
10. the device of measuring apparatus residual voltage according to claim 9, it is characterised in that the oscillograph with it is described
Equipment under test is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278901.2U CN207263824U (en) | 2017-09-30 | 2017-09-30 | A kind of alternating current phases select breaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278901.2U CN207263824U (en) | 2017-09-30 | 2017-09-30 | A kind of alternating current phases select breaker device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207263824U true CN207263824U (en) | 2018-04-20 |
Family
ID=61918580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721278901.2U Active CN207263824U (en) | 2017-09-30 | 2017-09-30 | A kind of alternating current phases select breaker device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207263824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787598A (en) * | 2018-12-21 | 2019-05-21 | 珠海格力电器股份有限公司 | Plug control device, electronic equipment and plug control method thereof |
| CN114994435A (en) * | 2022-05-24 | 2022-09-02 | 深圳市尚科新能源有限公司 | Mains supply power-off testing device and system |
-
2017
- 2017-09-30 CN CN201721278901.2U patent/CN207263824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787598A (en) * | 2018-12-21 | 2019-05-21 | 珠海格力电器股份有限公司 | Plug control device, electronic equipment and plug control method thereof |
| CN114994435A (en) * | 2022-05-24 | 2022-09-02 | 深圳市尚科新能源有限公司 | Mains supply power-off testing device and system |
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