CN208656447U - High-tension battery packet charging circuit - Google Patents
High-tension battery packet charging circuit Download PDFInfo
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- CN208656447U CN208656447U CN201821165317.0U CN201821165317U CN208656447U CN 208656447 U CN208656447 U CN 208656447U CN 201821165317 U CN201821165317 U CN 201821165317U CN 208656447 U CN208656447 U CN 208656447U
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Abstract
The utility model relates to battery charging fields, more particularly to high-tension battery packet charging circuit, including at least one battery core, and the detection circuit being connect with battery core, it wraps in high-tension battery equipped with several terminal grooves, is respectively equipped with the first charging input end connecting with battery core, the second charging input end, the first signal output end connecting with detection circuit, second signal output end in terminal groove；Charger includes switch, and the control circuit being connected with switch, the the first charging output terminal matched respectively with terminal groove, the second charging output terminal, the first signal input terminal, second signal input terminal are equipped on charger, first charging output terminal connection switch output end, the second charging output terminal connects power output end, and the first signal input terminal, second signal input terminal are separately connected control circuit input terminal.The utility model the utility model has the advantages that when avoiding charging charging terminal exposed and cause security risk, prevention battery pack to overcharge risk.
Description
Technical field
The utility model relates to battery charging field more particularly to high-tension battery packet charging circuits.
Background technique
The voltage of electric tool, garden instrument class lithium battery pack charger currently on the market is all less than human-body safety electricity
Pressure, thus by the charging terminal of charger it is exposed be outside meet safety in production regulation, human body will not usually be caused serious
Accidental shock accident, but when being used to charge to large-capacity battery pack (40V or more battery pack), then there is the height on charging terminal
Piezoelectricity electric shock user or therefore other caused security risks.
Utility model content
To solve the above problems, the utility model proposes the safer high-tension battery packet charging circuits that charges.
High-tension battery packet charging circuit, comprising: high-tension battery packet, and the charger being connect with high-tension battery packet；It is described
High-tension battery packet includes at least one battery core, and the detection circuit connecting with battery core, is equipped with dry end if wrapping in high-tension battery
Pilot trench is respectively equipped with the first charging input end, the second charging input end and detection circuit connecting with battery core in the terminal groove
The first signal output end, the second signal output end of connection；The charger includes switch, and the control electricity being connected with switch
Road is equipped with the first charging output terminal in mating connection with terminal groove respectively, the second charging output terminal, the on charger
One signal input terminal, second signal input terminal, the output end of the first charging output terminal connection switch, described second
The output terminal that charges connects the output end of power supply, and first signal input terminal, second signal input terminal are separately connected control
The input terminal of circuit processed.
Preferably, the detection circuit include the first detection circuit, the second detection circuit, first detection circuit it is defeated
Enter end to connect with battery core, the output end of the first detection circuit connects the first signal output end, the input of second detection circuit
The output end of the output end of end connection battery core and the first detection circuit, the second detection circuit connects second signal output end.
Preferably, first detection circuit includes triode Q4, metal-oxide-semiconductor Q5 and at least one detection chip, described
The input terminal of detection chip is connected with corresponding battery core, the base stage of output end connecting triode Q4 and the grid of metal-oxide-semiconductor Q5,
The emitter of the triode Q4 is grounded, current collection extremely the first signal output end, the source electrode ground connection of the metal-oxide-semiconductor Q5, leakage
Pole connects the second detection circuit.
Preferably, second detection circuit includes the first micro-control unit, the input terminal of first micro-control unit
The output end of battery core and the first detection circuit is connected, the output end of the first micro-control unit is second signal output end.
Preferably, the control circuit includes first control circuit and second control circuit, the first control circuit,
The input terminal of second control circuit is separately connected the first signal input terminal, second signal input terminal, first control circuit,
The output end connection switch of two control circuits.
Preferably, the switch uses relay RY1, and the relay RY1 includes coil, the first contact, the second contact
And third contact, one end of the coil connect first control circuit output end, other end connection the second control electricity of coil
Road output end, first contact are open circuit connection, and second contact connects power input, the third contact connection the
One charging output terminal.
Preferably, the first control circuit includes triode Q2, Q3, resistance R1, R2, the emitter of the triode Q2
It is separately connected one end of resistance R1 and the collector of triode Q3, the coil of the collector connection relay RY1 of triode Q2
One end, the base stage of triode Q2 is separately connected one end of the other end of resistance R1, the base stage of triode Q3 and resistance R2, institute
The emitter for stating triode Q3 is separately connected the other end of 12V power output end and resistance R2.
Preferably, the second control circuit includes the second micro-control unit, capacitor C1 and metal-oxide-semiconductor Q1, and described second
The first end of micro-control unit is separately connected one end of second signal input terminal and capacitor C1, and the second of the second micro-control unit
The grid of end connection metal-oxide-semiconductor Q1, the third end ground connection of the second micro-control unit, the other end ground connection of the capacitor C1, the MOS
The source electrode of pipe Q1 is grounded, one end of the coil of drain electrode connection relay RY1.
By using the utility model, may be implemented following effect: charger is equipped with to be matched with terminal groove respectively
First charging output terminal, the second charging output terminal, the first signal input terminal, second signal input terminal, work as charger
When being connect with high-tension battery packet, avoids the exposed of charging terminal and cause security risk；Two inspections are equipped in high-tension battery packet
Slowdown monitoring circuit, charger is interior to be equipped with two control circuits, and when wherein control circuit is not turned on all the way, switch is disconnected, and charger stops
Only charge；When wherein an alignment detection circuit fails, in addition an alignment detection circuit can also detect that battery core over-voltage is believed in battery pack
Number and turn off the charger and give battery pack charging, can be very good prevention battery pack and overcharge risk.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the utility model integral module connection schematic diagram；
Fig. 2 is charger construction schematic diagram in the utility model；
Fig. 3 is the utility model mesohigh battery pack structure schematic diagram；
Fig. 4 is the connection schematic diagram of detection circuit and control circuit in the utility model；
Fig. 5 is the utility model integrated circuit connection schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model is further described, but the utility model and unlimited
In these embodiments.
The utility model provides high-tension battery packet charging circuit, and in conjunction with attached drawing 1, which includes: high-tension battery
Packet, and the charger being connect with high-tension battery packet, the input terminal of the output end connection power supply of charger.High-tension battery packet includes
At least one battery core, and the detection circuit connecting with battery core are wrapped in high-tension battery equipped with several terminal grooves, the terminal groove
Inside be respectively equipped with the first charging input end C+ being connect with battery core, the second charging input end C-, connect with detection circuit first
Signal output end Con, second signal output end ID；The charger includes switch, and the control circuit being connected with switch,
Charger be equipped with respectively with terminal groove it is in mating connection first charging output terminal C+ ', second charging output terminal C- ',
First signal input terminal Con ', second signal input terminal ID ', the first charging output terminal connection switch output end,
The second charging output terminal connects power output end, first signal input terminal, second signal input terminal difference
Connect control circuit input terminal.
The structure of charger and high-tension battery packet is respectively as shown in attached drawing 2,3.When charger 1 is connect with high-tension battery packet 2
When, charger be equipped with matched respectively with terminal groove first charging output terminal C+ ', second charging output terminal C- ',
First signal input terminal Con ', second signal input terminal ID ' in the terminal groove 3 of high-tension battery packet, avoid end
Son it is exposed and cause security risk.
As the preferred of the present embodiment, as shown in Fig. 4, detection circuit includes the first detection circuit, the second detection circuit,
Control circuit includes first control circuit and second control circuit.The input terminal of first detection circuit is connect with battery core, and first
The output end of detection circuit connects the first signal output end Con, the input terminal connection battery core of second detection circuit and the
The output end of the output end of one detection circuit, the second detection circuit connects second signal output end ID.First control circuit, second
The input terminal of control circuit is separately connected the first signal input terminal Con ', second signal input terminal ID ', the first control electricity
Road, second control circuit output end connection switch, switch connects to power supply.
In order to avoid detection circuit or control circuit fail, and lead to overcharging for battery pack, the utility model is filled in battery
The control circuit that two detection circuits are set in electric management system and are connect respectively with this two detection circuits.When and only two
When the conducting of control circuit, switch could be closed, and charger could charge；When wherein there is a control circuit to be not turned on
When, that is, when failure, switch is opened, charger stops charging.When a wherein alignment detection circuit fails, in addition one
Alignment detection circuit can also detect in battery pack battery core over-voltage signal and issue control signal to control circuit, control circuit according to
Signal is controlled to turn off the switch, charger stops charging to battery pack, and can be very good prevention battery pack overcharges risk.
With reference to the accompanying drawing 5, respectively to the first detection circuit, the second detection circuit, first control circuit and the second control
The circuit connection and principle of circuit processed are illustrated.
Specifically, the first detection circuit includes resistance R3, triode Q4, metal-oxide-semiconductor Q5 and detection chip IC1, IC2 ...
ICn.Detection chip IC1, IC2 ... ICn includes test side VC1, VC2, VC3, VC4, VC5 and output end C_out, inspection
It surveys end VC1, VC2, VC3, VC4, VC5 and voltage detecting is carried out to every economize on electricity core in battery pack respectively, and obtain corresponding detection electricity
The voltage value of core, the base stage of output end C_out connecting triode Q4 and the grid of metal-oxide-semiconductor Q5, the hair of the triode Q4
Emitter grounding, collector connect one end of resistance R3, and the other end of the resistance R3 connects the first signal output end Con, institute
State the source electrode ground connection of metal-oxide-semiconductor Q5, drain electrode the second detection circuit of connection.Voltage inspection is carried out to every economize on electricity core in battery pack respectively
It surveys, and obtains the voltage value of corresponding detection battery core.Detection chip IC1, IC2 ... ICn judges respectively
The no voltage value that there is at least one economize on electricity core is greater than overvoltage protection value, then illustrates that the battery core voltage has reached saturation if it exists,
Then detection chip corresponding to battery core export first control signal, first control signal is level signal, at this time triode Q4,
Metal-oxide-semiconductor Q5 conducting.
Specifically, the second detection circuit includes the first micro-control unit U4.The input terminal of first micro-control unit U4 connects
The output end of battery core and the first detection circuit, the output end of the first micro-control unit are second signal output end ID1.First is micro-
Control unit U4 input terminal is separately connected every group of battery core BAT1, BAT2 ... BATn.First micro-control unit U4 further includes input
Hold C_in, the source electrode of input terminal C_in connection metal-oxide-semiconductor Q5, for receiving the output signal of first control circuit.First micro-control
Whether on the one hand voltage value that unit U4 processed detects every group of battery core is greater than given threshold；On the other hand, if the first micro-control unit
U4 receives the first control signal of first control circuit output, then exports first control signal by output end ID1.If detection
Voltage value at least one set of battery core is greater than given threshold, then the first micro-control unit passes through the second control of output end ID1 output
Signal, second control signal are level signal.
Specifically, switch uses relay RY1, relay RY1 includes coil, the first contact, the second contact and third
Contact.One end of coil connects first control circuit output end, and the other end of coil connects second control circuit output end, described
First contact is open circuit connection, and second contact connects power input, the first charging of third contact connection output end
Sub- C+ '.When first control circuit, second control circuit simultaneously turn on, charger output end is connect with battery pack input terminal, is filled
Electric appliance charges, when first control circuit or second control circuit are not turned on, charger output end and battery pack input terminal
It disconnects, then charger stops charging to battery pack.
Specifically, first control circuit includes triode Q2, Q3, resistance R1, R2, the emitter difference of the triode Q2
One end of connection resistance R1 and the collector of triode Q3, the one of the coil of the collector connection relay RY1 of triode Q2
End, the base stage of triode Q2 are separately connected one end of the other end of resistance R1, the base stage of triode Q3 and resistance R2, and described three
The emitter of pole pipe Q3 is separately connected the other end of 12V power output end and resistance R2.The process of charging is in charger
In, triode Q2, Q3 are respectively at the state of conducting, if the first detection circuit issues level signal, triode Q4 is connected, and
Triode Q2, Q3 become the state of cut-off, and first control circuit is in the state being not turned at this time, and relay RY1 is disconnected, charging
Device stops charging to battery pack.
Specifically, second control circuit includes the second micro-control unit U1, capacitor C1 and metal-oxide-semiconductor Q1.Second microcontroller
The first end ID2 of unit U1 is separately connected one end of second signal input terminal ID ' and capacitor C1, the second micro-control unit
Second end connects the grid of metal-oxide-semiconductor Q1, the third end ground connection of the second micro-control unit, the other end ground connection of the capacitor C1, institute
State the source electrode ground connection of metal-oxide-semiconductor Q1, one end of the coil of drain electrode connection relay RY1.The first end ID2 of second micro-control unit U1
When receiving the first control signal or second control signal of the first micro-control unit sending, electricity is exported by second end Con
Ordinary mail number, control metal-oxide-semiconductor Q1 are disconnected, and relay RY1 is disconnected at this time, and charger stops charging to battery core.Wherein, capacitor C1 is played
The effect of filtering is filtered the output signal of the second detection circuit.
Those skilled in the art of the present invention can do described specific embodiment various
The similar mode of modify or supplement or adopt substitutes, but without departing from the spirit of the present application or surmounts appended right and want
Seek range defined in book.
Claims (8)
1. high-tension battery packet charging circuit characterized by comprising high-tension battery packet, and filled with what high-tension battery packet was connect
Electric appliance；
The high-tension battery packet includes at least one battery core, and the detection circuit connecting with battery core, wraps and sets in high-tension battery
Have several terminal grooves, be respectively equipped in the terminal groove the first charging input end being connect with battery core, the second charging input end, with
The first signal output end, the second signal output end of detection circuit connection；
The charger includes switch, and the control circuit being connected with switch, be equipped on charger respectively with terminal groove phase
The first charging output terminal, the second the charging output terminal, the first signal input terminal, second signal input terminal being cooperatively connected
Son,
The output end of the first charging output terminal connection switch, the output of the second charging output terminal connection power supply
End, first signal input terminal, second signal input terminal are separately connected the input terminal of control circuit.
2. high-tension battery packet charging circuit according to claim 1, which is characterized in that the detection circuit includes the first inspection
The input terminal of slowdown monitoring circuit, the second detection circuit, first detection circuit is connect with battery core, and the output end of the first detection circuit connects
The first signal output end, the input terminal connection battery core of second detection circuit and the output end of the first detection circuit are connect, the
The output end of two detection circuits connects second signal output end.
3. high-tension battery packet charging circuit according to claim 2, which is characterized in that first detection circuit includes three
Pole pipe Q4, metal-oxide-semiconductor Q5 and at least one detection chip, the input terminal of the detection chip is connected with corresponding battery core, defeated
The base stage of outlet connecting triode Q4 and the grid of metal-oxide-semiconductor Q5, the emitter ground connection of the triode Q4, current collection extremely the
One signal output end, the source electrode ground connection of the metal-oxide-semiconductor Q5, drain electrode the second detection circuit of connection.
4. high-tension battery packet charging circuit according to claim 2, which is characterized in that second detection circuit includes the
One micro-control unit, the input terminal connection battery core of first micro-control unit and the output end of the first detection circuit, first
The output end of micro-control unit is second signal output end.
5. high-tension battery packet charging circuit according to claim 1, which is characterized in that the control circuit includes the first control
Circuit and second control circuit processed, the first control circuit, second control circuit input terminal be separately connected the first signal
Input terminal, second signal input terminal, first control circuit, second control circuit output end be separately connected switch, it is described
Switch connection power output end.
6. high-tension battery packet charging circuit according to claim 5, which is characterized in that the switch uses relay RY1,
The relay RY1 includes coil, the first contact, the second contact and third contact, the first control of one end connection of the coil
Circuit output end processed, the other end of coil connect second control circuit output end, and first contact is open circuit connection, and described the
Two contacts connect power input, the first charging of third contact connection output terminal.
7. high-tension battery packet charging circuit according to claim 6, which is characterized in that the first control circuit includes three
Pole pipe Q2, Q3, resistance R1, R2, the emitter of the triode Q2 are separately connected one end of resistance R1 and the collection of triode Q3
Electrode, one end of the coil of the collector connection relay RY1 of triode Q2, the base stage of triode Q2 are separately connected resistance R1's
One end of the other end, the base stage of triode Q3 and resistance R2, the emitter of the triode Q3 are separately connected the output of 12V power supply
The other end of end and resistance R2.
8. high-tension battery packet charging circuit according to claim 6, which is characterized in that the second control circuit includes the
Two micro-control units, capacitor C1 and metal-oxide-semiconductor Q1, the first end of second micro-control unit are separately connected second signal input
End and one end of capacitor C1, the grid of the second end connection metal-oxide-semiconductor Q1 of the second micro-control unit, the of the second micro-control unit
Three ends ground connection, the other end ground connection of the capacitor C1, the source electrode ground connection of the metal-oxide-semiconductor Q1, the coil of drain electrode connection relay RY1
One end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821165317.0U CN208656447U (en) | 2018-07-23 | 2018-07-23 | High-tension battery packet charging circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821165317.0U CN208656447U (en) | 2018-07-23 | 2018-07-23 | High-tension battery packet charging circuit |
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| CN208656447U true CN208656447U (en) | 2019-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023232005A1 (en) * | 2022-05-31 | 2023-12-07 | 浙江特康电子科技有限公司 | Charger and charging method for battery pack |
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2018
- 2018-07-23 CN CN201821165317.0U patent/CN208656447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023232005A1 (en) * | 2022-05-31 | 2023-12-07 | 浙江特康电子科技有限公司 | Charger and charging method for battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High voltage battery pack charging circuit Effective date of registration: 20220809 Granted publication date: 20190326 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing branch Pledgor: ZHEJIANG TEKANG ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2022980012195 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |