CN208369297U - A kind of intelligent lithium ion group charger - Google Patents
A kind of intelligent lithium ion group charger Download PDFInfo
- Publication number
- CN208369297U CN208369297U CN201821098044.2U CN201821098044U CN208369297U CN 208369297 U CN208369297 U CN 208369297U CN 201821098044 U CN201821098044 U CN 201821098044U CN 208369297 U CN208369297 U CN 208369297U
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- charger
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Abstract
The utility model discloses a kind of intelligent lithium ion group chargers; including input EMI filter circuit, output rectifier and filter, runaway protection circuit and overvoltage crowbar; one end of the input EMI filter circuit connects 220V ac input end; the other end connects output rectifier and filter by power switch; output rectifier and filter is also connected with runaway protection circuit; runaway protection circuit is also connected with overvoltage crowbar; overvoltage crowbar is also connected with feedback control loop, and feedback control loop is also connected with constant-current control circuit.This charger is encapsulated using hermetically sealed plastic shell, and good waterproof performance, charger is additionally provided with temperature protection and temperature control function, and when temperature is greater than 95 degree in shell, charger will stop working, etc. temperature drop to 70 degree or less and can restore automatically.When temperature is increased to 70 degree or more, charger can suitably turn charging current down automatically, to reduce charger fever.Multiple charging abnormality detection protection makes charging safer.
Description
Technical field
The utility model relates to a kind of charger, specifically a kind of intelligent lithium ion group charger.
Background technique
Chemical energy is converted into the device of electric energy chemical cell, commonly abbreviated as battery.After electric discharge, the side of charging can be used
Formula regenerates internal active material --- electric energy is stored as chemical energy；Chemical energy is converted to electric energy again when needing to discharge.
This kind of battery is known as battery (Storage Battery), also referred to as secondary cell.So-called battery is storage chemical energy
Amount releases a kind of electrochemical devices of electric energy when necessary.
Lithium battery is battery types common in daily life, and lithium battery has that small in size, reserve of electricity is big, easy to use etc.
Advantage, the service life of lithium battery are decided by its charger performance, and existing charger has a single function mostly, degree of intelligence compared with
It is low, it can not be protected.
Utility model content
The purpose of this utility model is to provide a kind of intelligent lithium ion group chargers, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions:
A kind of intelligent lithium ion group charger, including it is input EMI filter circuit, output rectifier and filter, out of control
Circuit and overvoltage crowbar are protected, one end of the input EMI filter circuit connects 220V ac input end, and the other end passes through
Power switch connects output rectifier and filter, and output rectifier and filter is also connected with runaway protection circuit, runaway protection circuit
It is also connected with overvoltage crowbar, overvoltage crowbar is also connected with feedback control loop, and feedback control loop is also connected with constant-current control circuit, constant current
Control circuit also by current sampling resistor connect charge switch, charging end current detection module, charging voltage detection module,
Charging control circuit and battery short circuit detection module, charging end current detection module are also connected with charging voltage detection module, fill
Piezoelectric voltage detection module is also connected with charging control circuit, and charging control circuit is also connected with battery short circuit detection module, battery short circuit
Detection module is also connected with charge switch.
Further technical solution as the utility model: the charging circuit has multiple abnormality detection protection circuit.
Further technical solution as the utility model: the power switch is also connected with start-up circuit.
Further technical solution as the utility model: the output rectifier and filter includes step-down transformer, filter
Wave capacitor and rectifier bridge.
Further technical solution as the utility model: the start-up circuit is also connected with PWM drive circuit.
Further technical solution as the utility model: the power switch is metal-oxide-semiconductor.
Compared with prior art, the utility model has the beneficial effects that this charger is encapsulated using hermetically sealed plastic shell,
Good waterproof performance, charger are additionally provided with temperature protection and temperature control function, and when temperature is greater than 95 degree in shell, charger will stop
Work, etc. temperature drop to 70 degree or less and can restore automatically.When temperature is increased to 70 degree or more, charger can be automatically charging current
It suitably turns down, to reduce charger fever.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, a kind of intelligent lithium ion group charger, including input EMI filter circuit, output rectification filter
One end of circuit, runaway protection circuit and overvoltage crowbar, the input EMI filter circuit connects 220V ac input end,
The other end connects output rectifier and filter by power switch, and output rectifier and filter is also connected with runaway protection circuit, loses
Control protection circuit is also connected with overvoltage crowbar, and overvoltage crowbar is also connected with feedback control loop, and feedback control loop is also connected with constant current control
Circuit processed, constant-current control circuit also connect charge switch, charging end current detection module, charging electricity by current sampling resistor
Pressure detection module, charging control circuit and battery short circuit detection module, charging end current detection module are also connected with charging voltage
Detection module, charging voltage detection module are also connected with charging control circuit, and charging control circuit is also connected with battery short circuit detection mould
Block, battery short circuit detection module are also connected with charge switch.
Power switch is also connected with start-up circuit.Output rectifier and filter includes step-down transformer, filter capacitor and rectification
Bridge.Start-up circuit is also connected with PWM drive circuit.Power switch is metal-oxide-semiconductor.
The working principle of the utility model is: the design charger is alternating current 220V AC input, maximum power is 164W's
Charger, maximum output voltage 54V, electric current maximum 3A, this charger are filled using the two-part of constant pressure after first constant current
Electric mode carries out Charge Management using single-chip microcontroller, and after power supply connection, indicator light traffic lights light 0.5 second respectively, power supply
It exports a pulse current to activate the battery of protection, self-test then is carried out to charger output voltage, voltage is normally
Battery short circuit, open circuit, battery failure etc. are detected, charger will be started after all going well and is charged the battery,
Indicator light red light length is bright, and otherwise green indicator light can prompt charging abnormal with 2HZ frequency scintillation.During the charging process, charger
The variation of charging voltage and electric current can be monitored at any time, and when electric current is less than 0.5A or voltage is raised to 55V, charger is cut immediately
Disconnected output, stops charging, and the long bright prompt battery of green indicator light is full of.During the charging process if battery or output generation are short
Road, charger can cut off output or over current protection immediately.Battery, charger are replaced in the case where not turning off alternating current
Meeting automatic identification battery altering acts and starts charging procedure.Single charge timing time is after ten hours, ten hours, even if filling
Electric current, voltage not up to require, and charger will also stop charging, and make charging safer.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of intelligent lithium ion group charger, including input EMI filter circuit, output rectifier and filter, guarantor out of control
Protection circuit and overvoltage crowbar, which is characterized in that one end of the input EMI filter circuit connects 220V ac input end,
The other end connects output rectifier and filter by power switch, and output rectifier and filter is also connected with runaway protection circuit, loses
Control protection circuit is also connected with overvoltage crowbar, and overvoltage crowbar is also connected with feedback control loop, and feedback control loop is also connected with constant current control
Circuit processed, constant-current control circuit also connect charge switch, charging end current detection module, charging electricity by current sampling resistor
Pressure detection module, charging control circuit and battery short circuit detection module, charging end current detection module are also connected with charging voltage
Detection module, charging voltage detection module are also connected with charging control circuit, and charging control circuit is also connected with battery short circuit detection mould
Block, battery short circuit detection module are also connected with charge switch, and multiple charging abnormality detection protection makes charging safer.
2. a kind of intelligent lithium ion group charger according to claim 1, which is characterized in that the power switch is also
Connect start-up circuit.
3. a kind of intelligent lithium ion group charger according to claim 1, which is characterized in that the output rectification filter
Wave circuit includes step-down transformer, filter capacitor and rectifier bridge.
4. a kind of intelligent lithium ion group charger according to claim 2, which is characterized in that the start-up circuit is also
Connect PWM drive circuit.
5. a kind of intelligent lithium ion group charger according to claim 1, which is characterized in that the power switch is
Metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098044.2U CN208369297U (en) | 2018-07-10 | 2018-07-10 | A kind of intelligent lithium ion group charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821098044.2U CN208369297U (en) | 2018-07-10 | 2018-07-10 | A kind of intelligent lithium ion group charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369297U true CN208369297U (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821098044.2U Active CN208369297U (en) | 2018-07-10 | 2018-07-10 | A kind of intelligent lithium ion group charger |
Country Status (1)
| Country | Link |
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| CN (1) | CN208369297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920427A (en) * | 2019-12-06 | 2020-03-27 | 株洲大川电子技术有限公司 | 100W battery charger suitable for unmanned aerial vehicle |
-
2018
- 2018-07-10 CN CN201821098044.2U patent/CN208369297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920427A (en) * | 2019-12-06 | 2020-03-27 | 株洲大川电子技术有限公司 | 100W battery charger suitable for unmanned aerial vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220310 Address after: 518000 Room 806, building C, komlung Science Park, Guansheng fifth road, Luhu community, Guanhu street, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen Jian'an Zhilian Public Safety Technology Co.,Ltd. Address before: 518108 309a, third floor, Hongfa jiateli gaoxinyuan office building, Shixin community, Shiyan street, Bao'an District, Shenzhen, Guangdong Province Patentee before: SHENZHEN HONGFA ELECTRONIC Co.,Ltd. |
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| TR01 | Transfer of patent right |