CN206848447U - A kind of automobile storage battery observation circuit - Google Patents
A kind of automobile storage battery observation circuit Download PDFInfo
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- CN206848447U CN206848447U CN201720560826.2U CN201720560826U CN206848447U CN 206848447 U CN206848447 U CN 206848447U CN 201720560826 U CN201720560826 U CN 201720560826U CN 206848447 U CN206848447 U CN 206848447U
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- divider resistance
- bluetooth module
- storage battery
- battery
- automobile storage
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Abstract
The utility model discloses a kind of automobile storage battery observation circuit, it includes bluetooth module, first divider resistance, second divider resistance and the first electric capacity, the positive pole of the front end connection battery of first divider resistance, the rear end of first divider resistance is connected to the front end of the second divider resistance, the rear end ground connection of second divider resistance, first electric capacity is parallel to the second divider resistance, the rear end of first divider resistance is also attached to the first I/O port of bluetooth module, the voltage of battery output passes through first divider resistance and the second divider resistance partial pressure, transmitted again after the first capacitor filtering to the first I/O port of bluetooth module, sent after being converted to Bluetooth signal using the bluetooth module.The utility model has the characteristics that to be easy to use, can grasp battery condition in real time.
Description
Technical field
It the utility model is related to monitoring cell electricity quantity equipment, more particularly to a kind of automobile storage battery observation circuit.
Background technology
As the continuous development of auto industry, one of main power source of the battery as automobile are ever-increasing in load
Meanwhile situations such as routine use and improper maintenance is also more and more, and existing detection device is only capable of detecting automobile storage battery quality,
But can not monitor in real time can not also prevent in time, cause automobile storage battery to be damaged, not only increase car owner uses car cost, also makes
Into pollution environment, life security in particular cases can be also influenceed.In the prior art, car owner is when checking battery, by frequent
The mode such as in-vehicle device power consumption and the driving charging of regular short distance is closed as far as possible after observing storage battery status indicator lamp, parking, avoids storing
The a large amount of dead electricity of battery, but these modes are often cumbersome, also can not really solve automobile storage battery and be damaged problem.In addition, with
Family needs handheld device detection automobile storage battery health value, startup function etc., is not easy to grasp the state of battery in time.
Utility model content
The technical problems to be solved in the utility model is, in view of the shortcomings of the prior art, there is provided one kind is easy to use, can
The automobile storage battery observation circuit of battery condition is grasped in real time.
In order to solve the above technical problems, the utility model adopts the following technical scheme that.
A kind of automobile storage battery observation circuit, it includes bluetooth module, the first divider resistance, the second divider resistance and
One electric capacity, the positive pole of the front end connection battery of first divider resistance, the rear end of first divider resistance are connected to the
The front end of two divider resistances, the rear end ground connection of second divider resistance, first electric capacity are parallel to the second divider resistance, institute
The rear end for stating the first divider resistance is also attached to the first I/O port of bluetooth module, and the voltage of battery output passes through described first point
Piezoresistance and the second divider resistance partial pressure, then transmitted after the first capacitor filtering to the first I/O port of bluetooth module, utilize institute
State after bluetooth module is converted to Bluetooth signal and send.
Preferably, it is connected with fuse between the front end of first divider resistance and the positive pole of battery.
Preferably, Schottky diode and power supply chip are also included, the anode of the Schottky diode is connected to storage
The positive pole of battery, the negative electrode of the Schottky diode pass through the 3rd divider resistance being sequentially connected in series and the second capacity earth, institute
The negative electrode for stating Schottky diode is connected to the input of power supply chip, and the power supply chip is used for the voltage for exporting battery
Be converted to 3.3V voltages and powered for bluetooth module.
Preferably, the power supply chip is model APL5155 power supply chip.
Preferably, the bluetooth module is model CC2541F256 Bluetooth chip.
Preferably, gravity accelerometer is also included, the signal output part of the gravity accelerometer is electrical
Bluetooth module is connected to, the gravity accelerometer is used to gather acceleration of gravity data and transmitted to bluetooth module, warp
Cross after the bluetooth module is converted to Bluetooth signal and send.
In automobile storage battery observation circuit disclosed in the utility model, adopted using the first divider resistance and the second divider resistance
Collect the output voltage of battery, the voltage is utilizing the first electric capacity after the first divider resistance and the second divider resistance partial pressure
Filtering clutter, transmit afterwards to bluetooth module, the bluetooth module is sent out after converting electrical signals to Bluetooth signal, signal
Receiving terminal can be the terminal or automobile computer that mobile phone, tablet personal computer etc. carry Bluetooth function, and user passes through these ends
End equipment or automobile computer can grasp the state of charge of battery, without observation of stopping, detection etc., thus facilitate user
Battery condition is obtained in real time, while the utility model circuit is simple, reliable and stable, energy consumption is low, is adapted to long-term use.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of signal acquisition part.
Fig. 2 is the circuit theory diagrams of bluetooth module.
Fig. 3 is the circuit theory diagrams of Sensor section.
Embodiment
The utility model is described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a kind of automobile storage battery observation circuit, with reference to shown in Fig. 1 to Fig. 3, it includes bluetooth
Module U2, the first divider resistance RY1, the second divider resistance RY2 and the first electric capacity CY1, the front end of the first divider resistance RY1
Connecting the positive pole of battery, the rear end of the first divider resistance RY1 is connected to the second divider resistance RY2 front end, and described the
Two divider resistance RY2 rear end ground connection, the first electric capacity CY1 are parallel to the second divider resistance RY2, first divider resistance
RY1 rear end is also attached to bluetooth module U2 the first I/O port P0.7, and the voltage of battery output is by first partial pressure electricity
RY1 and the second divider resistance RY2 partial pressures are hindered, then is transmitted after the first electric capacity CY1 filtering to bluetooth module U2 the first I/O port
P0.7, sent after being converted to Bluetooth signal using the bluetooth module U2.
In above-mentioned automobile storage battery observation circuit, electric power storage is gathered using the first divider resistance RY1 and the second divider resistance RY2
The output voltage in pond, the voltage are utilizing the first electric capacity after the first divider resistance RY1 and the second divider resistance RY2 partial pressures
CY1 filtering clutters, transmit afterwards to bluetooth module U2, the bluetooth module U2 is converted electrical signals to after Bluetooth signal to outgoing
Send, signal receiving end can be mobile phone, tablet personal computer etc. carry Bluetooth function terminal or automobile computer, Yong Hutong
The state of charge of battery can be grasped by crossing these terminal devices or automobile computer, observe, detect without parking etc., thus side
User obtain battery condition in real time, while the utility model circuit is simple, reliable and stable, energy consumption is low, is adapted to make for a long time
With.
In the present embodiment, fuse F1 is connected between the front end of the first divider resistance RY1 and the positive pole of battery.
As a kind of preferred embodiment, the utility model also solve reverse connection of accumulator problem, in particular to, the present embodiment is also
Include Schottky diode D23 and power supply chip U88, the anode of the Schottky diode D23 is being connected to battery just
Pole, the negative electrode of the Schottky diode D23 are grounded by the 3rd divider resistance RR3 being sequentially connected in series and the second electric capacity CT4, institute
The negative electrode for stating Schottky diode D23 is connected to power supply chip U88 input, and the power supply chip U88 is used for battery
The voltage conversion of output is 3.3V voltages and is bluetooth module U2 power supplies.Further, the power supply chip U88 is model
APL5155 power supply chip.
Wherein, when user is connecting automobile storage battery, if positive-negative polarity pad is reversed, anode output is low
Current potential, Schottky diode D23 anodic potentials are less than negative pole current potential, the input no-voltage of power supply chip, now power circuit
Not upper electricity, so as to protect subsequent conditioning circuit from infringement, and then improves the reliability and stability of circuit.
In the present embodiment, the bluetooth module U2 is model CC2541F256 Bluetooth chip.
In order to gather the vehicle body state of automobile, the present embodiment also includes gravity accelerometer U1, and the gravity adds
Velocity sensor U1 signal output part is electrically connected at bluetooth module U2, the gravity accelerometer U1 for gathering weight
Power acceleration information is simultaneously transmitted to bluetooth module U2, is sent after the bluetooth module U2 is converted to Bluetooth signal.Based on upper
State sensor, can to car crass, bring to a halt, the anxious state such as slow down is acquired, help to develop the safety of automobile, ensure
Function.
Automobile storage battery observation circuit disclosed in the utility model, it is not only convenient for using, and can grasp electric power storage in real time
Pond state, without user's operation can preventing car discharged or defective battery, while the utility model safely may be used without combustion-supporting material
Lean on, the daily average operating current of the utility model is low in energy consumption less than 1.5 milliamperes in addition, is adapted to be arranged on automobile storage battery for a long time
On.
Simply the utility model preferred embodiment described above, is not limited to the utility model, all in this practicality
Modification, equivalent substitution or improvement made in new technical scope etc., should be included in the model that the utility model is protected
In enclosing.
Claims (6)
1. a kind of automobile storage battery observation circuit, it is characterised in that include bluetooth module, the first divider resistance, the second partial pressure
Resistance and the first electric capacity, the positive pole of the front end connection battery of first divider resistance, the rear end of first divider resistance
The front end of the second divider resistance, the rear end ground connection of second divider resistance are connected to, first electric capacity is parallel to second point
Piezoresistance, the rear end of first divider resistance are also attached to the first I/O port of bluetooth module, and the voltage of battery output passes through
First divider resistance and the second divider resistance partial pressure, then transmitted after the first capacitor filtering to the first IO of bluetooth module
Mouthful, sent after being converted to Bluetooth signal using the bluetooth module.
2. automobile storage battery observation circuit as claimed in claim 1, it is characterised in that the front end of first divider resistance and
Fuse is connected between the positive pole of battery.
3. automobile storage battery observation circuit as claimed in claim 1, it is characterised in that also include Schottky diode and electricity
Source chip, the anode of the Schottky diode are connected to the positive pole of battery, the negative electrode of the Schottky diode by according to
3rd divider resistance of secondary series connection and the second capacity earth, the negative electrode of the Schottky diode are connected to the input of power supply chip
End, the power supply chip is for being 3.3V voltages by the voltage conversion of battery output and being bluetooth module power supply.
4. automobile storage battery observation circuit as claimed in claim 3, it is characterised in that the power supply chip is model
APL5155 power supply chip.
5. automobile storage battery observation circuit as claimed in claim 1, it is characterised in that the bluetooth module is model
CC2541F256 Bluetooth chip.
6. automobile storage battery observation circuit as claimed in claim 1, it is characterised in that also include acceleration of gravity sensing
Device, the signal output part of the gravity accelerometer are electrically connected at bluetooth module, and the gravity accelerometer is used
In collection acceleration of gravity data and transmit to bluetooth module, sent after the bluetooth module is converted to Bluetooth signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560826.2U CN206848447U (en) | 2017-05-18 | 2017-05-18 | A kind of automobile storage battery observation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560826.2U CN206848447U (en) | 2017-05-18 | 2017-05-18 | A kind of automobile storage battery observation circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206848447U true CN206848447U (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720560826.2U Active CN206848447U (en) | 2017-05-18 | 2017-05-18 | A kind of automobile storage battery observation circuit |
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| Country | Link |
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| CN (1) | CN206848447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389301A (en) * | 2019-08-06 | 2019-10-29 | 宁波吉欧光电科技有限公司 | A kind of vehicle power supply monitoring device |
-
2017
- 2017-05-18 CN CN201720560826.2U patent/CN206848447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389301A (en) * | 2019-08-06 | 2019-10-29 | 宁波吉欧光电科技有限公司 | A kind of vehicle power supply monitoring device |
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