CN207301295U - A kind of automobile start and stop power detector - Google Patents
A kind of automobile start and stop power detector Download PDFInfo
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- CN207301295U CN207301295U CN201721103313.5U CN201721103313U CN207301295U CN 207301295 U CN207301295 U CN 207301295U CN 201721103313 U CN201721103313 U CN 201721103313U CN 207301295 U CN207301295 U CN 207301295U
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- master controller
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- power supply
- wire connection
- automobile start
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Abstract
It the utility model is related to a kind of automobile start and stop power detector, including master controller, master controller is also associated with voltage and current detection circuit, memory and display, voltage and current detection circuit includes being used for the wire connection terminal with startup power supply to be measured, operational amplification circuit, sample circuit, ON-OFF control circuit are connected between two wire connection terminals, current divider, relay normally open switch and load resistance, the both ends of current divider that sample circuit includes being sequentially connected are connected with AD conversion chip；ON-OFF control circuit is also associated between two wire connection terminals, ON-OFF control circuit includes relay coil, the first triode being sequentially connected, and the base stage of the first triode is connected with master controller.The utility model can quickly and reliably realize the detection to startup power supply, can be applied to automobile start and stop power supply shipment inspection, troubleshooting, have it is easy to operate, efficient, precision is accurate, noiseless, using it is noiseless the advantages that.
Description
Technical field
Power detecting technology is the utility model is related to, especially a kind of automobile start and stop power detector.
Background technology
Automobile start and stop power supply is the important electric component of automobile, and can the quality of automobile starting power supply normal to automobile
Work influence is larger, it usually needs carries out shipment detection to ensure that its is up-to-standard.Quality testing for single products is usual
It is that startup power supply to be detected is installed on test vehicle, judges that the power supply product whether may be used by the way that whether sparking can start automobile
Normal use, quality testing of such a method to single-piece sample is easy to operate, and still, the shipment for bulk article checks the party
Method efficiency is low, does not possess the feasibility of practical operation.
Utility model content
The purpose of this utility model is to provide a kind of automobile start and stop power detector, for rapidly to automobile starting
Power supply carries out quality testing, can reduce vehicle failure, ensures automotive safety trip.
To solve the above-mentioned problems, the utility model provides a kind of automobile start and stop power detector, including master controller,
The master controller is connected with power circuit and clock circuit, and the master controller is also associated with voltage and current detection circuit, deposits
Reservoir and display, the voltage and current detection circuit include being used for the terminals being connected with startup power supply cathode to be measured, anode
Son, operational amplification circuit is connected between two wire connection terminals, and the output terminal of the operational amplification circuit is connected with AD and turns
Change chip；It is also associated with sample circuit between two wire connection terminals, current divider that the sample circuit includes being sequentially connected,
Relay normally open switchs and load resistance, the both ends of the current divider are connected with the AD conversion chip, the AD conversion chip
It is electrically connected with master controller；ON-OFF control circuit, the ON-OFF control circuit bag are also associated between two wire connection terminals
Including the relay coil being sequentially connected, the first triode, the both ends of the relay coil are parallel with the first diode, and described
The base stage of one triode is connected with the master controller.
Automobile start and stop power detector provided by the utility model also has following technical characteristic：
Further, the master controller is also associated with the temperature sensor for detecting startup power supply temperature to be measured.
Further, the master controller is microcontroller, and the memory is band electrically erasable programmable read-only memory,
The display is liquid crystal display.
Further, fuse is also in series with the sample circuit, the load resistance uses cement resistor.
The utility model has the advantages that：By the cathode of startup power supply to be measured, anode by wire connection terminal with being somebody's turn to do
After detection device connection, master controller can control the energization of relay coil, power-off, thus can control sample circuit repeat circuit
The keying of normal open switch, the voltage signal of startup power supply to be measured inputs AD conversion chip after operational amplification circuit is decayed, to be measured
The current signal of startup power supply is converted to voltage signal input AD conversion chip by current divider, and AD conversion chip is treated collection
Voltage, the current information for surveying startup power supply send master controller to be stored, shown, thus can quickly and reliably realize
Detection to startup power supply, can be applied to automobile start and stop power supply shipment inspection, troubleshooting, have easy to operate, efficient, essence
Degree is accurate, noiseless, using it is noiseless the advantages that.
Brief description of the drawings
Fig. 1 is the structure diagram of the automobile start and stop power detector of the utility model embodiment；
Fig. 2 is the structure diagram of the voltage and current detection circuit in the utility model embodiment；
Fig. 3 is the structure diagram of the clock circuit in the utility model embodiment；
Fig. 4 is the structure diagram of the power circuit in the utility model embodiment.
Embodiment
Describe the utility model in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not rushing
In the case of prominent, the feature in embodiment and embodiment in the utility model can be mutually combined.
In one embodiment of the automobile start and stop power detector of the utility model as shown in Figures 1 to 4, the automobile
Start and stop power detector includes
Including master controller 100, master controller 100 is connected with power circuit 10 and clock circuit 20, and master controller 100 is also
Be connected with voltage and current detection circuit 30, memory 40 and display 50, voltage and current detection circuit 30 include being used for it is to be measured
Wire connection terminal 301 that 60 cathode of startup power supply, anode are connected, wire connection terminal 302, between wire connection terminal 301, wire connection terminal 302
Operational amplification circuit 31 is connected with, the output terminal of operational amplification circuit 31 is connected with AD conversion chip 303；Wire connection terminal 301,
Sample circuit 32 is also associated between wire connection terminal 302, sample circuit 32 includes current divider R1, the relay normally open being sequentially connected
K1-1 and load resistance R2 is switched, the both ends of current divider R1 are connected with AD conversion chip 303, AD conversion chip 303 and main control
Device 100 is electrically connected, and AD conversion chip 303 passes through Integration Bus (Inter- Integrated Circuit) with master controller 100
It is connected；ON-OFF control circuit 33 is also associated between wire connection terminal 301, wire connection terminal 302, ON-OFF control circuit 33 is included successively
Connected relay coil K0, the both ends of the first triode Q1, relay coil K0 are parallel with the first diode D1, the one or three pole
The base stage of pipe Q1 is connected with master controller 100.Specifically, memory 40 by I2C SCL terminals and I2C SDA terminals with
Master controller 100 is connected, and AD conversion chip 303 is connected by I2C SCL terminals and I2C SDA terminals with master controller 100,
Clock circuit 20 is connected by I2C SCL terminals and I2C SDA terminals with master controller 100.Automobile start and stop in the embodiment
Power detector, after the cathode of startup power supply to be measured, anode are connected by wire connection terminal with the detection device, master controller
Energization, the power-off of controllable relay coil, thus can control the keying of sample circuit repeat circuit normal open switch, startup to be measured
The voltage signal of power supply inputs AD conversion chip after operational amplification circuit is decayed, and the current signal of startup power supply to be measured is through undue
Stream device is converted to voltage signal input AD conversion chip, and AD conversion chip believes the voltage of the startup power supply to be measured of collection, electric current
Breath sends master controller to be stored, shown, thus can quickly and reliably realize the detection to startup power supply, can apply
In automobile start and stop power supply shipment inspection, troubleshooting, have easy to operate, efficient, precision is accurate, noiseless, using without making an uproar
The advantages that sound.
In the above-described embodiments, which also has following technical characteristic：Preferably, main control
Device is microcontroller (Microcontrollers)；AD conversion chip 303 is ADS1115, and memory 40 is that band electrically-erasable can be compiled
Journey read-only storage (EEPROM；Electrically Erasable Programmable Read-Only Memory)；Display
Device 50 uses liquid crystal display, and model LCD12864, thus can show each detection parameters of startup power supply to be measured and be protected
Deposit, facilitate operating personnel to understand testing result.Preferably, master controller 100 is also associated with being used to detect startup power supply 60 to be measured
Temperature temperature sensor 70, temperature sensor 70 can use digital temperature sensor, such as DS18B20 digital temperatures pass
Sensor, thereby guarantees that testing result is reliable.
In the above embodiment, it is preferable that the base stage of the first triode Q1 is connected with wire connection terminal by 3rd resistor R3
K1, the first triode Q1 are connected by wire connection terminal K1 with master controller 100, and thus master controller can pass through wire connection terminal K1
Control relay coil K0 to be powered, power-off, realize and the break-make of the relay normally open switch K1-1 in sample circuit 32 is controlled, tool
For body, master controller controls putting for startup power supply to be measured by controlling relay normally open to switch being opened or closed for K1-1
Electricity, disconnects relay normally open switch K1-1 knots in startup power supply is discharged 5 seconds if being continuously detected discharge power supply, after 5 seconds
Beam detects and judges startup power supply qualification；If detecting current vanishes in 5 seconds of electric discharge, judge that startup power supply does not conform to
Lattice, the voltage of startup power supply, electric current, discharge time, qualified products quantity etc. can in a liquid crystal display show and store
Stored in device.Preferably, fuse F1 is also in series with sample circuit 32, load resistance R2 uses cement resistor, noiseless,
It is pollution-free, energy conservation and environmental protection.
In the above-described embodiments, as shown in Fig. 2, the operational amplification circuit 31 in voltage and current detection circuit 30 includes computing
The resistance value of amplifier U1, R4, R5, R6, R7, wherein R4, R5 are equal, and the resistance value of R6, R7 are equal, and the resistance value of R4 is R6
Four times of resistance value, such as the resistance value of R4, R5 are that the resistance value of 200K Ω, R6, R7 is 50K Ω, thus by startup to be measured
The battery voltage decay of power supply is output to AD conversion chip after being the 1/4 of primary voltage, ensures that voltage detecting is reliable, accurate.Such as Fig. 3
Shown clock circuit 20, clock chip therein use DS1307, clock signal are provided for master controller.It is as shown in figure 4, electric
The DC power supply of 12V is converted to stable 5V voltages as master controller, AD conversion core by source circuit 10 by voltage-stablizer LM2575
The devices such as piece, clock chip are powered so that the automobile start and stop power detector is stable and reliable for performance.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify the technical solution described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (4)
1. a kind of automobile start and stop power detector, including master controller, the master controller are connected with power circuit and clock
Circuit, it is characterised in that the master controller is also associated with voltage and current detection circuit, memory and display, the voltage
Current detection circuit includes being used for the wire connection terminal that is connected with startup power supply cathode to be measured, anode, two wire connection terminals it
Between be connected with operational amplification circuit, the output terminal of the operational amplification circuit is connected with AD conversion chip；Two terminals
Sample circuit is also associated between son, the sample circuit includes the current divider, relay normally open switch and load being sequentially connected
Resistance, the both ends of the current divider are connected with the AD conversion chip, and the AD conversion chip is electrically connected with master controller；Two
ON-OFF control circuit is also associated between the wire connection terminal, the ON-OFF control circuit includes the relay line being sequentially connected
Circle, the first triode, the both ends of the relay coil are parallel with the first diode, the base stage of first triode with it is described
Master controller is connected.
2. automobile start and stop power detector according to claim 1, it is characterised in that：The master controller is also associated with
For detecting the temperature sensor of startup power supply temperature to be measured.
3. automobile start and stop power detector according to claim 1, it is characterised in that：The master controller is monolithic
Machine, the memory are band electrically erasable programmable read-only memory, and the display is liquid crystal display.
4. automobile start and stop power detector according to claim 1, it is characterised in that：Also connect in the sample circuit
There is fuse, the load resistance uses cement resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103313.5U CN207301295U (en) | 2017-08-31 | 2017-08-31 | A kind of automobile start and stop power detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721103313.5U CN207301295U (en) | 2017-08-31 | 2017-08-31 | A kind of automobile start and stop power detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301295U true CN207301295U (en) | 2018-05-01 |
Family
ID=62438197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721103313.5U Active CN207301295U (en) | 2017-08-31 | 2017-08-31 | A kind of automobile start and stop power detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301295U (en) |
-
2017
- 2017-08-31 CN CN201721103313.5U patent/CN207301295U/en active Active
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Date of cancellation: 20221203 Granted publication date: 20180501 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20221228 Granted publication date: 20180501 |
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