CN110456265A - The detection method of relay in a kind of charging pile - Google Patents
The detection method of relay in a kind of charging pile Download PDFInfo
- Publication number
- CN110456265A CN110456265A CN201910762587.2A CN201910762587A CN110456265A CN 110456265 A CN110456265 A CN 110456265A CN 201910762587 A CN201910762587 A CN 201910762587A CN 110456265 A CN110456265 A CN 110456265A
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- Prior art keywords
- relay
- voltage value
- stationary contact
- contact
- ammeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of detection methods of relay in charging pile, comprising the following steps: S1, starting charging pile send cut-off signal to relay；S2, the output content for switching ammeter；S3, the voltage value A1 for obtaining stationary contact, by the voltage value of stationary contact judge relay contact whether adhesion, adhesion thens follow the steps S4；S4, control panel send closure signal to relay, obtain the voltage value A2 of the stationary contact and voltage value B1 of movable contact, judge that relay contact with the presence or absence of failure, is not present failure, then executes S5 by comparing the voltage value A2 of stationary contact and the voltage value B1 of movable contact；S5, the output content of ammeter is switched back into original state, is charged normal.The present invention can obtain the characteristic of relay stationary contact information of voltage using charging pile itself by ammeter, sample circuit need to only be isolated all the way and the characteristic of whole equipment is combined to can be realized as detecting the failure of relay, while ensureing that testing result is accurate, hardware cost is reduced.
Description
Technical field
The present invention relates to charging detection techniques, more particularly to a kind of detection method of relay in charging pile.
Background technique
The biography of signal or energy is often realized using the switch state to relay in design of electronic circuits
It is defeated, it is generally exactly the conducting and disconnection that charge circuit is realized using this relay, conventional charging in charging pile field
It is typically provided ammeter, control panel and relay in stake, ammeter is mainly used for the metering of charge capacity, can also communicate with control panel
Send the information such as current voltage, electric current.
It, can because of the influence of the factors such as loadtype, fever, electric arc when using this high power relay in equipment
Relay can be will lead to and the failures such as adhesion occur, be not attracted, so as to cause functions of the equipments exception.Due to relay it is general itself not
Band feedback contact, so to know that the quality of relay can only be realized by way of extra circuits.It needs to be directed to
Special circuit for detecting is designed in the contact of relay, then judges the quality of relay by suitable logic judging method.
It is at present that each transfer contact respectively designs sampling electricity all the way for the mentality of designing of relay contact circuit for detecting
Road, in this way each relay at least need two-way sample circuit.The comparison of voltage value is up-sampled by different contacts to judge
The quality of relay.
Due to be between the coil and contact of relay isolation, for contact sample circuit require carry out every
From design, the hardware cost of this isolation sample circuit is usually relatively high.
Summary of the invention
The purpose of the present invention is being directed to above-mentioned status, a kind of detection method of relay in charging pile is provided.
A kind of the technical solution adopted by the present invention are as follows: the detection method of relay in charging pile, comprising:
S1, starting charging pile, send cut-off signal to relay；
S2, the output content of ammeter is switched to voltage value；
S3, obtain stationary contact voltage value A1, by the voltage value of stationary contact judge relay contact whether adhesion, do not glue
Company thens follow the steps S4；
S4, control panel send closure signal to relay, obtain the voltage value A2 of the stationary contact and voltage value B1 of movable contact,
Relay contact is judged with the presence or absence of failure by comparing the voltage value A2 of stationary contact and the voltage value B1 of movable contact, and there is no events
Barrier, then execute S5；
S5, the output content of ammeter is switched to power consumption, is charged normal.
Effect of the invention is: the detection method of relay in a kind of charging pile of the present invention utilizes charging pile sheet
The ammeter of body switches the output content of ammeter, so that ammeter is obtained relay stationary contact information of voltage, adopts to need to only be isolated all the way
Sample circuit simultaneously combines the characteristic of whole equipment to can be realized as detecting relay, while ensureing that testing result is accurate,
Reduce hardware cost.
Detailed description of the invention
Fig. 1 show a kind of structural schematic diagram of relay test system；
Fig. 2 show the flow diagram of the detection method of relay in a kind of charging pile provided by the invention；
Fig. 3 show the structural schematic diagram of relay.
Specific embodiment
The present invention is introduced with reference to the accompanying drawing:
Referring to Fig. 1, being a kind of charging pile charging system provided by the invention comprising: control panel 1, ammeter 2, isolation
Sample circuit 3, AC input 4, arrester 5, residual current circuit breaker 6, relay 7, charging gun 8, the alternating current are defeated
It is successively electric to enter end 4, the arrester 5, the residual current circuit breaker 6, the ammeter 2, the relay 7, the charging gun 8
Connection, the isolation sample circuit 3 connect with the stationary contact of the relay 7, the relay 7, the ammeter 2, it is described every
It is communicated to connect from sample circuit 3 and the control panel 1.
The AC input 4, the arrester 5, the residual current circuit breaker 6, the ammeter 2, the relay
Device 7, the charging gun 8 form the charging circuit of charging pile, and exchange is electrically accessed charging pile by the AC input 4, described
Arrester 5 is used to limit the overvoltage of charging pile, and for preventing from leaking electricity, the relay 7 is used for the residual current circuit breaker 6
It receives the control signal of the control panel 1 and realizes open circuit or the access of charging circuit, the charging gun 8 is used for object to be charged
Body exports electric energy.
Under normal circumstances, the ammeter 2 is used to detect the performance number of charging circuit, and the performance number result hair that will test
The control panel 1 is given, in conjunction with timing, the control panel 1 can learn the charge metering of the charging circuit.
When the relay 7 breaks down, the ammeter 2 then is used to detect the voltage value of relay stationary contact, and will
Collection result is sent to the control panel 1, and the isolation sample circuit 3 is used to acquire the voltage value of relay movable contact and will inspection
It surveys result and is sent to the control panel 1, the control panel 1 according to testing result, determines failure.
Referring to Fig. 2, in a kind of charging pile relay detection method comprising following steps:
S1, starting charging pile, send cut-off signal to relay；
S2, the output content of ammeter 2 is switched to voltage value；
S3, obtain stationary contact voltage value A1, by the voltage value of stationary contact judge relay contact whether adhesion, do not glue
Company thens follow the steps S4；
S4, control panel send closure signal to relay, obtain the voltage value A2 of the stationary contact and voltage value B1 of movable contact,
Relay contact is judged with the presence or absence of failure by comparing the voltage value A2 of stationary contact and the voltage value B1 of movable contact, and there is no events
Barrier, then execute S5；
S5, the output content of ammeter 2 is switched to power consumption, is charged normal.
In this present embodiment, step S2 concrete mode are as follows: control panel 1 sends control signal to ammeter 2, makes the ammeter 2
Output content voltage value is switched to by power consumption.
In this present embodiment, step S3 includes:
S31, control panel 1 send cut-off signal to relay 7；
S32, the detection of ammeter 2 obtain the stationary contact voltage value A1 of relay 7, and the result that will test is sent to control panel
1；
If the stationary contact voltage value A1 of S33, relay 7 is not zero, S34 is thened follow the steps, if the stationary contact electricity of relay 7
Pressure value is zero, thens follow the steps S4；
S34, determine relay 7 movable contact and stationary contact between stick together, alarm.
In this present embodiment, step S4 includes:
S41, control panel 1 send closure signal to relay 7；
S42, the detection of ammeter 2 obtain the stationary contact voltage value A2 of relay 7, and the result that will test is sent to control panel
1；
The result that S43, the isolation detection of sample circuit 3 obtain the movable contact voltage value B1 of relay, and will test is sent
To control panel；
S44, control panel 1 carry out the voltage value A2 of the voltage value B1 of 7 movable contact of relay and 7 stationary contact of relay pair
Than, if the voltage value A2 of 7 stationary contact of relay is equal with the voltage value B1 of 7 movable contact of relay, S45 is thened follow the steps, if after
The voltage value A2 of 7 stationary contact of electric appliance and the voltage value B1 of 7 movable contact of relay are unequal, then follow the steps S46；
S45, determine that relay 7 is in normal condition, execute step S5；
S46, determine that failure is damaged in the contact of relay 7, alarm.
The detection method of relay in a kind of charging pile of the present invention utilizes the ammeter of charging pile itself, switching electricity
The output content of table makes ammeter obtain relay stationary contact information of voltage, so that sample circuit need to only be isolated all the way and combine whole
The characteristic of a equipment can be realized as detecting relay, while ensureing that testing result is accurate, reduce hardware cost.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. the detection method of relay in a kind of charging pile, which comprises the following steps:
S1, starting charging pile, send cut-off signal to relay；
S2, the output content for switching ammeter；
S3, obtain stationary contact voltage value A1, by the voltage value of stationary contact judge relay contact whether adhesion, adhesion is then
Execute step S4；
S4, control panel send closure signal to relay, obtain the voltage value A2 of the stationary contact and voltage value B1 of movable contact, pass through
The voltage value B1 of the voltage value A2 and movable contact that compare stationary contact judge that with the presence or absence of failure, failure is not present in relay contact,
Then execute S5；
S5, the output content of ammeter is switched back into original state, is charged normal.
2. the detection method of relay in charging pile as described in claim 1, which is characterized in that step S2 concrete mode is control
Making sheet sends control signal to ammeter, and the output content of the ammeter is made to switch to voltage value by power consumption.
3. the detection method of relay in charging pile as described in claim 1, which is characterized in that step S3 includes:
S31, control panel send cut-off signal to relay；
S32, ammeter detection obtain the stationary contact voltage value A1 of relay, and the result that will test is sent to control panel；
If the stationary contact voltage value A1 of S33, relay is not zero, S34 is thened follow the steps, if the stationary contact voltage value of relay is
Zero, then follow the steps S4；
S34, determine relay movable contact and stationary contact between stick together, alarm.
4. the detection method of relay in charging pile as described in claim 1, which is characterized in that step S4 includes:
S41, control panel send closure signal to relay；
S42, ammeter detection obtain the stationary contact voltage value A2 of relay, and the result that will test is sent to control panel；
S43, isolation sample circuit detection obtain the movable contact voltage value B1 of relay, and the result that will test is sent to control
Plate；
S44, control panel compare the voltage value B1 of relay movable contact and the voltage value A2 of relay stationary contact, if relay
The voltage value A2 of device stationary contact and the voltage value B1 of relay movable contact are equal, then follow the steps S45, if relay stationary contact
Voltage value A2 and the voltage value B1 of relay movable contact are unequal, then follow the steps S46；
S45, determine that relay is in normal condition；
S46, determine that failure is damaged in the contact of relay, alarm.
5. the detection method of relay in charging pile as described in claim 1, which is characterized in that step S5 concrete mode is control
Making sheet sends control signal to ammeter, and the output content of the ammeter is made to switch to power consumption by voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910762587.2A CN110456265A (en) | 2019-08-16 | 2019-08-16 | The detection method of relay in a kind of charging pile |
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| CN201910762587.2A CN110456265A (en) | 2019-08-16 | 2019-08-16 | The detection method of relay in a kind of charging pile |
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| CN110456265A true CN110456265A (en) | 2019-11-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112595438A (en) * | 2020-12-03 | 2021-04-02 | 国创新能源汽车智慧能源装备创新中心(江苏)有限公司 | Connector fault detection method and device and power divider |
| CN113702820A (en) * | 2021-08-30 | 2021-11-26 | 中国第一汽车股份有限公司 | Vehicle control system and fault detection method and device of vehicle relay set |
| CN113900019A (en) * | 2021-11-02 | 2022-01-07 | 浙江广为电器工具有限公司 | Charging pile relay bonding detection circuit and method |
| CN114236256A (en) * | 2020-09-09 | 2022-03-25 | 维谛技术有限公司 | Test system, test method and test instrument for electromagnetic devices |
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Application publication date: 20191115 |