CN206908338U - The detection circuit of lithium cell charging state - Google Patents
The detection circuit of lithium cell charging state Download PDFInfo
- Publication number
- CN206908338U CN206908338U CN201720709449.4U CN201720709449U CN206908338U CN 206908338 U CN206908338 U CN 206908338U CN 201720709449 U CN201720709449 U CN 201720709449U CN 206908338 U CN206908338 U CN 206908338U
- Authority
- CN
- China
- Prior art keywords
- diode
- detection circuit
- cell charging
- charging state
- lithium cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of detection circuit of lithium cell charging state, the detection circuit of lithium cell charging state of the present utility model, including：Diode, the positive pole of the charge port of the positive pole connection lithium battery of diode, the negative pole connection lithium battery of diode；The positive pole connection of voltage detecting circuit, voltage detecting circuit and diode, the cathode voltage by detecting diode determine the charged state of lithium battery.The detection circuit of lithium cell charging state of the present utility model can effectively and accurately detect the charged state of the lithium battery of robot, and have the advantages of cost is low, simple in construction.
Description
Technical field
The utility model belongs to robotic technology field, and in particular to a kind of detection circuit of lithium cell charging state.
Background technology
With the research and development to robot, either in industrial production or the life of people, make more and more
Worked with robot.Robot is the automatic installations for performing work, and it can both receive mankind commander, and can transport again
The program of the advance layout of row, can also be according to the principle guiding principle action formulated with artificial intelligence technology.
Robot can be divided into mobile robot and stationary machine people.Wherein, mobile robot moves according to it
Mode can be divided into again：Wheeled mobile robot, walking mobile robot (single-leg type, both legs formula and more leg formulas), crawler-type mobile
The types such as robot, climbing robot, squirmy robot and swimming type robot；It can be divided into again by its working environment：It is indoor
Mobile robot and outdoor mobile robot；It can be divided into again by its control architecture:Function formula (horizontal) constructed machine people,
Behavior formula (rectilinear) constructed machine people and serial-parallel machining robot.
These mobile robots typically use battery powered.In order to reduce use cost, mobile robot typically can
It is powered using lithium battery.When not enough power supply, lithium battery can be filled by way of being connected with external recharging apparatus
Electricity.But if charged when external recharging apparatus is connected with lithium battery, when mobile robot continues to move to operation, then
Be likely to result in charging wire pull apart or charging wire enwind other easily fall articles situation, easily cause danger.
Utility model content
The utility model based on due to that can not detect the charged state of mobile robot, causing movable type in the prior art
Robot works on the technical problem easily caused danger, and it is an object of the present invention to provide a kind of detection electricity of lithium cell charging state
Road, the detection circuit of lithium cell charging state of the present utility model, including：
Diode, the positive pole of the charge port of the positive pole connection lithium battery of the diode, the negative pole connection of the diode
The lithium battery；
Voltage detecting circuit, the voltage detecting circuit are connected with the positive pole of the diode, by detecting two pole
The cathode voltage of pipe determines the charged state of the lithium battery.
The diode is further advanced by optocoupler with the voltage detecting circuit and connected, the input connection of the optocoupler
The positive pole of the diode, the output end of the optocoupler connect the voltage detecting circuit.
Current-limiting resistance is further in series between the positive pole of the diode and the optocoupler.
The voltage detecting circuit preferably includes single-chip microcomputer, and the single-chip microcomputer receives the cathode voltage letter of the diode
Number.
Bleeder circuit is further connected between the optocoupler and the single-chip microcomputer.
The single-chip microcomputer further can also according to the cathode voltage signal of the diode of reception, control machine people's
Working condition.
The diode is preferably the low diode of forward voltage drop.
The charge port preferably includes two positive poles and two negative poles, the diode and the charge port it is any just
Pole connects.
Positive effect of the present utility model is：The utility model adds diode in electric power loop so that electricity
Resource loop can only one-way conduction, the voltage that diode cathode is then detected by voltage detecting circuit judges the charge port of power supply
Whether access charging device and start to charge up, can effectively and accurately detect the charged state of the lithium battery of robot.This practicality
It is new to complete the detection of the charged state for lithium battery due to only accessing diode, its cost is low, it is simple in construction, be easy to
Production and operation.
Brief description of the drawings
Fig. 1 is the detection circuit diagram of lithium cell charging state of the present utility model.
Embodiment
As shown in figure 1, a kind of detection circuit of lithium cell charging state provided by the utility model, including diode D3 and
Voltage detecting circuit.
Wherein, the charge port J3 of diode D3 positive pole connection lithium battery positive pole, diode D3 negative pole connection lithium electricity
Pond, i.e. diode D3 are series between lithium battery and charge port J3.Diode D3 is preferably the low diode of forward voltage drop, i.e.,
Diode D3 is a low forward voltage drop, and the diode of high forward current, its forward voltage drop is 0.3V or so, it is possible to reduce charging
When kwh loss.In the present embodiment, diode D3 model V15W60C-M3/I, Vishy, it is necessary to explanation, its
The diode of his model, as long as forward voltage drop is low, maximum forward current value be more than charging current diode, can be applied to
In the utility model.It is made up of inside the diode of the model two diodes in parallel.Diode D3 can allow charger J3 and
The loop one-way conduction of battery connection, makes electric current to flow to battery from charger J3.
According to the operation principle of diode, voltage detecting circuit is connected with diode D3 positive pole, and passes through detection two
Pole pipe D3 cathode voltage determines the charged state of lithium battery.In the present embodiment, voltage detecting circuit preferably includes single-chip microcomputer,
Single-chip microcomputer can be with the cathode voltage signal of reception diode, and determines according to diode D3 cathode voltage the charging shape of lithium battery
State, when charger does not plug charge port J3, due to diode D3 one-way conduction characteristic, diode D3 positive pole is that do not have
High-tension, single-chip microcomputer is by detecting diode D3 voltage levels, you can to determine whether charger is plugged, works as single-chip microcomputer
When detecting high voltage, determine that charger is plugged, lithium battery is in charged state, when single-chip microcomputer detects low-voltage, really
Determine charger not to be plugged.
During in order to be better protected from lithium cell charging, because robot works on, it can be caused danger in movement, monolithic
Machine further the working condition of control machine people, that is, can also work as monolithic according to the diode D3 of reception cathode voltage signal
Machine examination measure diode D3 just extremely high voltage when, control machine people is stopped.Wherein, diode D3 positive very high voltage
The power supply that specific scope connect according to it determines, in the present embodiment, diode D3 positive pole high voltage range be 24V~
29.2V, diode D3 positive pole low-voltage are 0V.
In order to control, to pass to the voltage signal of single-chip microcomputer be that can carry out the high level signal and low level of height change
Signal, and charger voltage and single-chip microcomputer signal are isolated, diode D3 and voltage detecting circuit are further advanced by optocoupler
OC4 connections, optocoupler OC4 input connection diode D3 positive pole, optocoupler OC4 output end connection voltage detecting circuit.This
The optocoupler OC4 used in embodiment model PC817X3NIP0F, Sharp Microelectronics is, it is necessary to explanation
It is, as long as the optocoupler that can be functioned as described above can be applied in the utility model.
Because the running current of the light emitting diode in optocoupler OC4 is smaller, and the charger of charge port J3 connections
Voltage, it is necessary to is further in series with current-limiting resistance in 29.2V between diode D3 positive pole and the first pin of optocoupler
R14, the electric current of light emitting diode is flowed through in the current range of normal work.The work for the light emitting diode that the present embodiment uses
It is 5-20mA to make electric current, therefore, current-limiting resistance R14 resistance sizes can be arranged into 4.7K Ω, therefore, by current-limiting resistance
Electric current after R14 is exactly 29.2V/4.7K Ω=6.2mA, meets the running current of light emitting diode.
In the present embodiment, bleeder circuit is further also associated between optocoupler and single-chip microcomputer.Bleeder circuit includes string
The first resistor R15 and second resistance R17 of connection, first resistor R15 and second resistance R17 can play a part of partial pressure, and
The effect of the voltage signal of single-chip microcomputer, i.e. Charger_Detect signal stabilizations pull-up will be sent to by also having.Because
Charger_Detect signals are connected with single-chip microcomputer signal pin, and its voltage range needs to control between 0~3.3V, its
In, the voltage range of high level is between 2~3.3V, and low level voltage range is between 0~1.7V.So work as
When Charger_Detect signals are high level, 24V high voltage is carried out by first resistor R15 and second resistance R17
Partial pressure is to meet this condition.Now, the voltage of Charger_Detect signals can be byCalculate, make
High level is controlled between 2~3.3V.
Preferably, R14 in the present embodiment, R15 can use model RC0603FR-074K7L, Yageo resistance；
R17 can use model RC0603FR-07510RL, Yageo resistance.
In summary, the principle of the detection circuit of the lithium cell charging state of the present embodiment is：Charger does not plug charging
During mouth J3, due to diode D3 one-way conduction characteristic, optocoupler OC4 1 pin is no high-tension, so optocoupler OC4 will not
Conducting, the Charger_Detect signal outputs high level of 4 pin is to single-chip microcomputer, and diode D3 now is low-voltage state, i.e.,
When single-chip microcomputer detect optocoupler OC4 for output high level when, actually detected diode D3 just extremely low-voltage shape
State, so, the result of monolithic machine testing is in uncharged state for lithium battery.Charge port J3 is plugged when charger to start working
When, optocoupler OC4 1 pin is in high-voltage state, so optocoupler OC4 is turned on, 4 pin are pulled down to low level, now, monolithic machine examination
The diode D3 measured just extremely high-voltage state, so the result that single-chip microcomputer detects is in charged state for lithium battery.
Therefore, single-chip microcomputer is by detecting the changes of Charger_Detect signals, i.e., single-chip microcomputer is by detecting optocoupler OC4 output electricity
The change of pressure signal just can know that whether charger is plugged.
Charge port J3 employed in the present embodiment includes two positive poles and two negative poles, diode D3 and charge port
Any positive pole connection.And charge port J3 type selecting can change, the charge port of any model can be applied of the present utility model
Detect the detection that circuit carries out the charged state of lithium battery.
Claims (8)
- A kind of 1. detection circuit of lithium cell charging state, it is characterised in that including：Diode, the diode positive pole connection lithium battery charge port positive pole, the diode negative pole connection described in Lithium battery；Voltage detecting circuit, the voltage detecting circuit are connected with the positive pole of the diode, by detecting the diode Cathode voltage determines the charged state of the lithium battery.
- 2. the detection circuit of lithium cell charging state as claimed in claim 1, it is characterised in that the diode and the electricity Pressure detection circuit is connected by optocoupler, and the input of the optocoupler connects the positive pole of the diode, the output end of the optocoupler Connect the voltage detecting circuit.
- 3. the detection circuit of lithium cell charging state as claimed in claim 2, it is characterised in that：The positive pole of the diode with Current-limiting resistance is in series between the optocoupler.
- 4. the detection circuit of lithium cell charging state as claimed in claim 2, it is characterised in that the voltage detecting circuit bag Single-chip microcomputer is included, the single-chip microcomputer receives the cathode voltage signal of the diode.
- 5. the detection circuit of lithium cell charging state as claimed in claim 4, it is characterised in that the optocoupler and the monolithic Bleeder circuit is connected between machine.
- 6. the detection circuit of lithium cell charging state as claimed in claim 4, it is characterised in that the single-chip microcomputer can also basis The cathode voltage signal of the diode received, the working condition of control machine people.
- 7. the detection circuit of lithium cell charging state as claimed in claim 1, it is characterised in that the diode is pressed to be positive The diode of reduction.
- 8. the detection circuit of lithium cell charging state as claimed in claim 1, it is characterised in that：The charge port includes two Positive pole and two negative poles, the diode are connected with any positive pole of the charge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709449.4U CN206908338U (en) | 2017-06-19 | 2017-06-19 | The detection circuit of lithium cell charging state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720709449.4U CN206908338U (en) | 2017-06-19 | 2017-06-19 | The detection circuit of lithium cell charging state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908338U true CN206908338U (en) | 2018-01-19 |
Family
ID=61285330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720709449.4U Active CN206908338U (en) | 2017-06-19 | 2017-06-19 | The detection circuit of lithium cell charging state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206908338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266076A (en) * | 2019-07-10 | 2019-09-20 | 北京云迹科技有限公司 | Charge control system suitable for walking robot |
-
2017
- 2017-06-19 CN CN201720709449.4U patent/CN206908338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266076A (en) * | 2019-07-10 | 2019-09-20 | 北京云迹科技有限公司 | Charge control system suitable for walking robot |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203326666U (en) | Charging circuit capable of preventing reversal connection of charging power supply | |
| CN104348192B (en) | A kind of electronic cigarette USB charger | |
| CN206908338U (en) | The detection circuit of lithium cell charging state | |
| CN103969490A (en) | Charging indicating circuit and storage battery charging device | |
| CN104935058B (en) | A kind of battery charger for centralized meter reading terminal class product | |
| CN104393651B (en) | Two-way lossless active equalization device | |
| CN205430123U (en) | Solar energy is to charge controllers of load | |
| CN205123301U (en) | General type intelligence battery charger | |
| CN203632903U (en) | Solar street lamp controller | |
| CN204046247U (en) | The multipurpose high-intelligentization circuit of charger | |
| CN206498211U (en) | A kind of battery control circuit | |
| CN103094937B (en) | Intelligent charging circuit and lamp | |
| CN106602655A (en) | Charging method and charging circuit of mobile terminal | |
| CN207504620U (en) | A kind of quick-charging circuit of lithium battery | |
| CN206321769U (en) | A kind of lithium cell charging detection means | |
| CN204425026U (en) | A kind of uninterrupted self-powered forest fire protection watch-dog | |
| CN205898872U (en) | Charger tester circuit | |
| CN201174603Y (en) | Solar inverter | |
| CN203722285U (en) | Lithium battery charging circuit | |
| CN206074728U (en) | A kind of battery management system insulation detecting circuit | |
| CN110365076A (en) | Can intelligent measurement charger maximum output charging current charging circuit | |
| CN205176172U (en) | Lithium ion battery organizes short -circuit protection testing arrangement | |
| CN204101704U (en) | The electric quantity detection apparatus of portable power source | |
| CN103457315A (en) | Solar charging control circuit | |
| CN202455045U (en) | Protection and alternative current detection circuit of storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 322099 2 building, 14 Chuang Chuang garden, 968 Xuefeng West Road, Beiyuan street, Yiwu, Jinhua, Zhejiang. Patentee after: Zhejiang Zhi Ling Robot Technology Co., Ltd. Address before: 230601 544, Hai Heng mansion 6, Cui Wei Road, Hefei economic and Technological Development Zone, Anhui Patentee before: Hefei Zhi Ling robot Co., Ltd. |