CN207925615U - A kind of charging combination and charger - Google Patents
A kind of charging combination and charger Download PDFInfo
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- CN207925615U CN207925615U CN201820299173.1U CN201820299173U CN207925615U CN 207925615 U CN207925615 U CN 207925615U CN 201820299173 U CN201820299173 U CN 201820299173U CN 207925615 U CN207925615 U CN 207925615U
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- terminal
- charger
- voltage
- battery pack
- detection terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
A kind of charging combination and charger, including the first battery pack (100), the second battery pack (200), charger (300), first battery pack has first voltage detection terminal (12), second battery pack has second voltage detection terminal (22), first voltage detection terminal (12) ground connection, the second voltage detection terminal (22) is connected between two economize on electricity pool units, and the charger is by detecting the voltage value of first, second voltage detection terminal (12,22) to identify first, second battery pack.Charging combination using the above structure and charger have without different marker elements, the advantages that being not necessarily charger side storage corresponding data in advance, can identify battery pack terminal open circuit, and improve the utilization rate of second voltage detection terminal.
Description
[technical field]
The utility model is related to a kind of charging combination and charger, more particularly to a kind of electric tool charging combination and
Charger.
[background technology]
With the development of battery pack charging technique, a charger can give the charging of two different battery packs more normal
See, accompanying problem is that how charger identifies different battery packs.Currently existing scheme is to have mark in battery pack side
Know element, charger identifies the nominal voltage of battery pack according to the difference of marker elements.Refering to Figure 1, the battery of 12V
The battery pack of packet and 14.4V are respectively provided with marker elements R1, R2, wherein R1 and R2 is the resistance of different resistance values.Charger side
Corresponding data is prestored, when charger is connect with battery pack, the voltage value of charger detection terminal T obtains marker elements
Thus the value of R1 or R2 judges that it is the battery pack of 12V or the battery pack of 14.4V to be connected to charger.
The value of marker elements R1 and R2 must be different in said program, and need to be that charger side stores phase in advance
The data answered, detection terminal T is i.e. idle after the completing identification battery pack of the task, and utilization rate is not high, meanwhile, work as detection terminal
When breaking problem occurs for T, said program can not identify.
In consideration of it, it is necessory to provide the improved charging combination of one kind and charger, lacked existing for prior art with overcoming
It falls into.
[utility model content]
In view of the deficiencies of the prior art, filling for different battery packs is easily identified the purpose of this utility model is to provide a kind of
Electricity combination and charger.
The utility model solves prior art problem and following technical solution can be used：A kind of charging combination, including：First electricity
There is pond packet 100 first nominal voltage, first battery pack to have first voltage detection terminal 12；Second battery pack 200,
With the second nominal voltage, second nominal voltage is different from first nominal voltage, and second battery pack has the
Two voltage detection terminals 22；There is charger 300 voltage identification terminal 32, the charger to identify first battery pack 100
Nominal voltage and second battery pack 200 one of nominal voltage, and to first, second battery pack charge；
The first voltage detection terminal 12 is grounded, and the second voltage detection terminal 22 is connected between two economize on electricity pool units, described
The voltage identification terminal 32 of charger is connect with the first voltage detection terminal 12 or second voltage detection terminal 22, described to fill
Electric appliance is by detecting the voltage value of first, second voltage detection terminal 12,22 to identify first, second battery pack.
The scheme of being further improved is：The first voltage detection terminal 12 is grounded via resistance R3, the second voltage inspection
Terminal 22 is surveyed to be connected between two economize on electricity pool units via resistance R4.
The scheme of being further improved is：Described resistance R3, the R4 connected on first, second voltage detection terminal 12,22
Resistance value it is identical.
The scheme of being further improved is：Described resistance R3, the R4 connected on first, second voltage detection terminal 12,22
Resistance value differ.
The scheme of being further improved is：The second voltage detection terminal 22 transmits the signal of single-unit voltage in charging process
To charger 300.
The scheme of being further improved is：First battery pack 100 has the first temperature detection terminal 16, second battery
There is packet 200 second temperature detection terminal 26, the charger 300 to have temperature recognition terminal 36, when first temperature is examined
It surveys terminal 16 or the second temperature detection terminal 26 is connect with the temperature recognition terminal 36, the temperature recognition terminal 36
Level is pulled low, then the determination of the charger 300 has battery pack insertion.
The scheme of being further improved is：First temperature detection terminal, the 16 or described second temperature detection terminal 26 is charging
Transmission temperature signal is to charger 300 in the process.
The scheme of being further improved is：First battery pack 100 has the first positive terminal 11, second battery pack
200 there is the second positive terminal 21, the charger 300 to have third positive terminal 31, the third positive terminal of the charger
Son 31 is connect with first positive terminal 11 or second positive terminal 21, if first positive terminal 11 or described the
The voltage value of two positive terminals 21 is less than 5V, charger 300 to first battery pack 100 or second battery pack 200 into
Line activating charges.
The scheme of being further improved is：The charger 300 has a MCU, and the MCU by voltage identification terminal 32 to institute
It states first voltage detection terminal 12 or the second voltage detection terminal 22 sends pulse.
The utility model solves prior art problem and another technical solution can be used：A kind of charger, including：MCU；Electricity
Recognition terminal 32, the voltage identification terminal 32 is pressed to be correspondingly connected with the first, second battery pack 100,200 of different nominal voltages
First, second voltage detection terminal 12,22, the first voltage detection terminal 12 are grounded, the second voltage detection terminal 22
It is connected between two economize on electricity pool units；The charger is by detecting the voltage of first, second voltage detection terminal 12,22
Value is to identify first, second battery pack.
The scheme of being further improved is：The MCU by voltage identification terminal 32 to the first voltage detection terminal 12 or
The second voltage detection terminal 22 sends pulse.
The scheme of being further improved is：There is the charger third positive terminal 31, the third positive terminal 31 to correspond to
The first, second positive terminal 11,12 for connecting the first, second battery pack 100,200, if first positive terminal 11 or described
The voltage value of second positive terminal 21 is less than 5V, and charger carries out activating charge.
The scheme of being further improved is：The charger has temperature recognition terminal 36, when the temperature recognition terminal 36 is right
The first, second temperature detection terminal 16,26 of the first, second battery pack 100,200 should be connected, the temperature recognition terminal 36
Level is pulled low, and charger determination has battery pack insertion.
The scheme of being further improved is：The voltage identification terminal 32 receives second voltage detection terminal 22 in charging process
The single-unit voltage signal of transmission.
The scheme of being further improved is：The temperature recognition terminal 36 receives the first temperature detection terminal 16 in charging process
Or the temperature signal that second temperature detection terminal 26 transmits.
Compared with prior art, the utility model has the advantages that：By by the first voltage of the first battery pack
Detection terminal is grounded, and the second voltage detection terminal of the second battery pack is connected to battery unit, compared with the prior art, has nothing
Different marker elements need to be used, charger side storage corresponding data is not necessarily in advance, improves second voltage detection terminal
Utilization rate, and can identify the advantages that battery pack terminal is breaking.
[description of the drawings]
Specific embodiment of the present utility model is further described in detail below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of prior art identification battery pack；
Fig. 2 is a kind of schematic diagram of the battery pack using the utility model；
Fig. 3 is the explosive view of the first battery pack；
Fig. 4 is the explosive view of the second battery pack；
Fig. 5 is the schematic diagram of the charger to match with battery pack in Fig. 2；
Fig. 6 is the schematic diagram that charger is connect with the first battery pack；
Fig. 7 is the schematic diagram that charger is connect with the second battery pack；
Fig. 8 is the flow chart of the utility model charging process.
The meaning of reference numeral in figure：
100：First battery pack 200：Second battery pack 300：Charger 1：Shell 2：Battery pack terminal 4：Circuit board
5：Charger terminal 11：First positive terminal 12：First voltage detection terminal 13,14：First connection terminal 15：First is negative
Extreme son 16：First temperature detection terminal 21：Second positive terminal 22：Second voltage detection terminal 23,24：Second connection
Terminal 25：Second negative terminal 26：Second temperature detection terminal 31：Third positive terminal 32：Voltage identification terminal 33,
34：Third connection terminal 35：Third negative terminal 36：Temperature recognition terminal 301：The ports MCU
[specific implementation mode]
It is the explosive view of the schematic diagram and battery pack of the utility model battery pack shown in please see Fig. 2 to Fig. 4.The electricity
The battery pack terminal 2 that Chi Bao is equipped with shell 1, is installed on shell, several battery unit Cell and circuit board 4；In present embodiment
In, the battery unit Cell of different number can be installed in each battery pack, be referred to as the first, second battery pack, wherein first
Battery pack 100 is the 12V battery packs that three section lithium cells are composed in series, and the second battery pack 200 is four section lithium cells strings
Join the 14.4V battery packs of composition.The battery pack provides electric power to electric tools such as electric drill, angle grinder, electric circular saws.
It please refers to shown in Fig. 5, is the schematic diagram of the utility model charger 300, the charger 300 is equipped with charger end
Son 5, it is that battery pack charges that the charger terminal 5 is connected with battery pack terminal 2.
It please refers to shown in Fig. 6, for the schematic diagram that the utility model charger 300 is connect with the first battery pack 100, charger
Terminal 5 and the battery pack terminal 2 of the first battery pack are connected, wherein charger terminal 5 is known as third positive terminal successively
31, voltage identification terminal 32, third connection terminal 33,34, third negative terminal 35, temperature recognition terminal 36, the first battery pack
100 battery pack terminal 2 is known as the first positive terminal 11, first voltage detection terminal 12, the first connection terminal 13,14 successively,
First negative terminal 15 and the first temperature detection terminal 16, six terminals and first battery pack 100 of the charger 300
Six terminals connect one to one.First battery pack 100 by three economize on electricity pool unit Cell1, Cell2, Cell3 series connection and
At, and the first positive terminal 11 is connected directly to the anode of battery unit Cell3, first voltage detection terminal 12 is via resistance R3
Ground connection, the first connection terminal 13 is connected to the cathode of battery unit Cell3 via resistance R2, and (i.e. battery unit Cell2 is just
Pole), the first connection terminal 14 is connected to the cathode (i.e. the anode of battery unit Cell1) of battery unit Cell2 via resistance R1,
First negative terminal 15 is connected directly to the cathode of battery unit Cell1, and the first temperature detection terminal 16 is via NTC thermistor
It is connected to the cathode of battery unit Cell1, meanwhile, the cathode ground connection of battery unit Cell1.
Shown in Fig. 7, for the schematic diagram that the utility model charger 300 is connect with the second battery pack 200, charging
Device terminal 5 and the battery pack terminal 2 of the second battery pack are connected, wherein charger terminal 5 is known as third positive terminal successively
31, voltage identification terminal 32, third connection terminal 33,34, third negative terminal 35, temperature recognition terminal 36, the second battery pack
200 battery pack terminal 2 is known as the second positive terminal 21, second voltage detection terminal 22, second connection end 23,24 successively,
Second negative terminal 25 and second temperature detection terminal 26, six terminals and second battery pack 200 of the charger 300
Six terminals connect one to one.Second battery pack 200 is by four economize on electricity pool unit Cell1, Cell2, Cell3, Cell4
Be connected in series, and the second positive terminal 21 is connected directly to the anode of battery unit Cell4, second voltage detection terminal 22 via
Resistance R4 (resistance value of resistance R4 can be identical as the resistance value of resistance R3, can also be differed with the resistance value of resistance R3) is connected to electricity
The cathode (i.e. the anode of battery unit Cell3) of pool unit Cell4, second connection end 23 is connected to battery list via resistance R5
The cathode (i.e. the anode of battery unit Cell2) of first Cell3, second connection end 24 is connected to battery unit via resistance R6
The cathode (i.e. the anode of battery unit Cell1) of Cell2, the second negative terminal 25 are connected directly to the negative of battery unit Cell1
Pole, second temperature detection terminal 26 are connected to the cathode of battery unit Cell1 via NTC thermistor, meanwhile, battery unit
The cathode of Cell1 is grounded.
It is the flow chart of the utility model charging process shown in Fig. 8.Whether charger first determines whether battery pack
It needs to activate, whether what then judgement was connected to charger is the second battery pack, if so, charging to the second battery pack；If no
It is situations such as then judging whether to be the first battery pack and whether be open circuit, exception, finally determination is filled to the first battery pack
Electricity or open circuit report an error and exception reports an error.Detailed process is as follows：The first step：It powers on, judges whether battery pack needs to activate：Charging
The third positive terminal 31 of device 300 reads the voltage of the first positive terminal 11 or the second positive terminal 21, judges that the voltage is
It is no to be less than 5V, if so, to battery pack into line activating.The time of accumulative activation charges if the time of activation is more than 5 minutes
Device determines that the battery pack is bad battery pack, and charger reports an error.When the first positive terminal 11 or the electricity of the second positive terminal 21
Pressure is more than or equal to 5V, then executes second step；Second step：Whether what judgement was connected to charger is the second battery pack：Charger 300
Voltage identification terminal 32 read the voltage value of first voltage detection terminal 12 or second voltage detection terminal 22, if the voltage
Value meets the first preset condition, it is determined that be connected to charger is the second battery pack 200, and is directly carried out to the second battery pack
Charging.In the present embodiment, the first preset condition is more than 0.5V.When the voltage identification terminal 32 detection voltage value not
When meeting the first preset condition, then third step is executed；Third walks：To first voltage detection terminal 12 or second voltage detection terminal
22 send pulse, and in the present embodiment, the MCU of charger 300 is configured as sending the pulse of 5V, the i.e. ends MCU of charger
Mouth 301 sends out 5V pulses, then executes the 4th step；4th step：Judge be connected to charger whether be the first battery pack and
Situations such as whether being open circuit, exception：Charger reads again first voltage detection terminal 12 or second voltage inspection after sending pulse
The voltage value for surveying terminal 22, if the voltage value meets the second preset condition, it is determined that be connected to charger is the first battery
Packet；If the voltage value meets third preset condition, it is determined that the first voltage detection terminal 12 or second voltage test side
22 open circuit of son；If the voltage value meets the 4th preset condition, charging combination is abnormal.In the present embodiment,
Two preset conditions are more than 2V and to be less than 3V, and third preset condition is more than or equal to 3V, and the 4th preset condition is less than or equal to 2V.
The foundation of above-mentioned condition setting please join shown in Fig. 6, and the ports MCU 301 of charger send out the pulse of 5V, in the present embodiment,
Resistance R7 is identical with the resistance value of resistance R3, if therefore be connected to charger 300 is the first battery pack 100, in the ports MCU
Resistance R7 and resistance R3 divides above-mentioned 5V voltages equally in 301 to resistance R7 to resistance R3 to the circuit on ground, then the voltage of charger is known
The voltage value of other terminal 32 is about 2.5V (i.e. the voltage value of first voltage detection terminal 12 is about 2.5V), in actual use,
Second preset condition is set greater than 2V and is less than 3V.Similarly, if first voltage detection terminal 12 or second voltage test side
22 open circuit of son, then the circuit of the ports MCU 301 to resistance R7 to resistance R3 (or resistance R4) is obstructed, therefore the voltage of charger is known
The voltage value of other terminal 32 is about that (i.e. the voltage value of first voltage detection terminal 12 or second voltage detection terminal 22 is about 5V
5V), in actual use, third preset condition is set greater than equal to 3V.It should be pointed out that charger can only be judged
The battery pack open circuit of connection, and it is the first battery pack or the second battery pack that cannot specifically judge the battery pack of the open circuit.If no
Meeting above-mentioned two situations, i.e. the voltage value of the voltage identification terminal 32 of charger is less than or equal to 2V (i.e. the 4th preset condition),
Exception has occurred in then charging combination.To sum up, when meeting the second preset condition, it is determined that be connected to charger is the first battery
Packet 100, charger then charges to the first battery pack；When meeting third preset condition, it is determined that battery pack open circuit, charger
Open circuit is carried out to report an error；When meeting the 4th preset condition, then charging combination is abnormal, and charger carries out abnormal report an error.
Shown in Fig. 6 and Fig. 7, charger 300 has temperature recognition terminal 36, is filled when not having battery pack to be connected to
When electric appliance 300, the level of the temperature recognition terminal 36 is high level, and when there is battery pack to be connected to charger 300, which knows
The level of other terminal 36 is pulled low.I.e. when the temperature of the first temperature detection terminal 16 or second temperature detection terminal 26 and charger
Recognition terminal 36 connects, then the level of the temperature recognition terminal 36 is pulled low, and the determination of charger 300 has battery pack insertion.Together
When, in charging process, the first temperature detection terminal 16 or second temperature detection terminal 26 transmit temperature signal to charging
The temperature recognition terminal 36 of device 300 prevents from leading to safety accident because temperature is excessively high in charging process.
Shown in Fig. 7, the second voltage detection terminal 22 of the second battery pack 200 transmits single-unit in charging process
The signal of voltage is to charger 300.I.e. which kind of battery the second voltage detection terminal 22 is judge to be connected to charger
It can be used as recognition terminal when packet, single-unit voltage signal can be transmitted to charger again in charging process, therefore substantially increase end
The utilization rate of son.
The utility model is not limited to above-mentioned specific implementation mode.Those of ordinary skill in the art should be readily understood that
It arrives, under the premise of not departing from the utility model principle and scope, the battery pack charging system of the utility model also has other very
More alternative solutions.The scope of protection of the utility model is subjected to the contents of the claims.
Claims (15)
1. a kind of charging combination, including：
There is first battery pack (100) the first nominal voltage, first battery pack to have first voltage detection terminal (12)；
There is second battery pack (200) the second nominal voltage, second nominal voltage to be different from first nominal voltage,
Second battery pack has second voltage detection terminal (22)；
There is charger (300) voltage identification terminal (32), the charger to identify the nominal of first battery pack (100)
One of the nominal voltage of voltage and second battery pack (200), and charge to first, second battery pack；
It is characterized in that：First voltage detection terminal (12) ground connection, the second voltage detection terminal (22) are connected to two
It economizes on electricity between pool unit, the voltage identification terminal (32) of the charger and the first voltage detection terminal (12) or second are electric
Detection terminal (22) is pressed to connect, the voltage value that the charger passes through detection first, second voltage detection terminal (12,22)
To identify first, second battery pack.
2. charging combination according to claim 1, it is characterised in that：The first voltage detection terminal (12) is via resistance
(R3) it is grounded, the second voltage detection terminal (22) is connected to via resistance (R4) between two economize on electricity pool units.
3. charging combination according to claim 2, it is characterised in that：First, second voltage detection terminal (12,22)
The resistance value of the resistance (R3, R4) of upper connection is identical.
4. charging combination according to claim 2, it is characterised in that：First, second voltage detection terminal (12,22)
The resistance value of the resistance (R3, R4) of upper connection differs.
5. charging combination according to claim 1, it is characterised in that：The second voltage detection terminal (22) was being charged
The signal for transmitting single-unit voltage in journey gives charger (300).
6. charging combination according to claim 1, it is characterised in that：First battery pack (100) has the first temperature
There is second temperature detection terminal (26), the charger (300) to have for detection terminal (16), second battery pack (200)
Temperature recognition terminal (36), when the first temperature detection terminal (16) or the second temperature detection terminal (26) and the temperature
It spends recognition terminal (36) to connect, the level of the temperature recognition terminal (36) is pulled low, then charger (300) determination has electricity
Chi Bao is inserted into.
7. charging combination according to claim 6, it is characterised in that：The first temperature detection terminal (16) or described
Two temperature detection terminals (26) transmit temperature signal in charging process gives charger (300).
8. charging combination according to claim 1, it is characterised in that：First battery pack (100) has the first anode
There is the second positive terminal (21), the charger (300) to have third anode for terminal (11), second battery pack (200)
Terminal (31), the third positive terminal (31) of the charger and first positive terminal (11) or second positive terminal
(21) it connects, if the voltage value of first positive terminal (11) or second positive terminal (21) is less than 5V, charger
(300) activating charge is carried out to first battery pack (100) or second battery pack (200).
9. charging combination according to claim 1, it is characterised in that：The charger (300) has MCU, and the MCU
It is sent to the first voltage detection terminal (12) or the second voltage detection terminal (22) by voltage identification terminal (32)
Pulse.
10. a kind of charger, including：
MCU；
Voltage identification terminal (32), the voltage identification terminal (32) are correspondingly connected with the first, second battery of different nominal voltages
First, second voltage detection terminal (12,22) of (100,200) is wrapped,
The first voltage detection terminal (12) ground connection, the second voltage detection terminal (22) be connected to two economize on electricity pool units it
Between；
The charger by detecting the voltage value of first, second voltage detection terminal (12,22) to identify described first,
Second battery pack.
11. charger according to claim 10, it is characterised in that：The MCU is by voltage identification terminal (32) to institute
It states first voltage detection terminal (12) or the second voltage detection terminal (22) sends pulse.
12. charger according to claim 10, it is characterised in that：The charger has third positive terminal (31),
The third positive terminal (31) be correspondingly connected with the first, second battery pack (100,200) the first, second positive terminal (11,
12), if the voltage value of first positive terminal (11) or second positive terminal (21) is less than 5V, charger is into line activating
Charging.
13. charger according to claim 10, it is characterised in that：The charger has temperature recognition terminal (36),
When the temperature recognition terminal (36) is correspondingly connected with the first, second temperature detection terminal of the first, second battery pack (100,200)
The level of (16,26), the temperature recognition terminal (36) is pulled low, and charger determination has battery pack insertion.
14. charger according to claim 10, it is characterised in that：The voltage identification terminal (32) is in charging process
Receive the single-unit voltage signal that second voltage detection terminal (22) transmits.
15. charger according to claim 13, it is characterised in that：The temperature recognition terminal (36) is in charging process
Receive the first temperature detection terminal (16) or the temperature signal of second temperature detection terminal (26) transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299173.1U CN207925615U (en) | 2018-03-04 | 2018-03-04 | A kind of charging combination and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820299173.1U CN207925615U (en) | 2018-03-04 | 2018-03-04 | A kind of charging combination and charger |
Publications (1)
| Publication Number | Publication Date |
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| CN207925615U true CN207925615U (en) | 2018-09-28 |
Family
ID=63602135
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172917A (en) * | 2018-03-04 | 2018-06-15 | 江苏东成机电工具有限公司 | A kind of charging combination, charger and battery pack recognition methods |
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2018
- 2018-03-04 CN CN201820299173.1U patent/CN207925615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172917A (en) * | 2018-03-04 | 2018-06-15 | 江苏东成机电工具有限公司 | A kind of charging combination, charger and battery pack recognition methods |
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