CN108767921A - A kind of smart battery pack and the electric tool with the smart battery pack - Google Patents
A kind of smart battery pack and the electric tool with the smart battery pack Download PDFInfo
- Publication number
- CN108767921A CN108767921A CN201810555160.0A CN201810555160A CN108767921A CN 108767921 A CN108767921 A CN 108767921A CN 201810555160 A CN201810555160 A CN 201810555160A CN 108767921 A CN108767921 A CN 108767921A
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- China
- Prior art keywords
- module
- voltage
- battery pack
- main control
- electrically connected
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
A kind of smart battery pack includes the battery pack with multiple batteries, it is characterised in that：It further include main control module, lifting/voltage reducing module and voltage class detection module, the output of integral battery group and main control module, lifting/voltage reducing module and the electrical connection of voltage class detection module, the output end of voltage class detection module is electrically connected from the input terminal of main control module for providing the information of voltage needed for different electric equipment products to main control module, main control module is equipped with PWM units, the output end of the PWM units of main control module is electrically connected the output voltage for adjusting lifting/voltage reducing module with the input terminal of lifting/voltage reducing module, the output end of lifting/voltage reducing module with the power input of electric equipment products for being electrically connected.The smart battery pack output voltage is adjustable, it is preferable to design and produce cost reduction, versatility.In addition a kind of adjustable output voltage of battery pack, design and producing cost reduction, the preferable electric tool of versatility are also provided.
Description
Technical field
The present invention relates to a kind of smart battery pack and with the electric tool of the smart battery pack.
Background technology
The electric tool of different voltages grade, it usually needs use the battery pack of itself standard configuration, versatility poor.For not
The battery pack designed with voltage class, since required number of batteries is different, the space occupied is also different, therefore either
Pcb board still installs shell and is required for redesigning to adapt to various sizes of demand, this undoubtedly increases design and producing
Cost.Therefore there is an urgent need for a kind of adjustable smart battery packs of output voltage of design to be applicable in the electric tool of different voltages grade at present
Use demand.The design principle of certain smart battery pack is equally applicable to other electronic products, such as mobile phone, digital phase
Machine, laptop etc..
Invention content
The technical problem to be solved by the present invention is to：There is provided that a kind of output voltage is adjustable, designs and produces cost reduction, general
The preferable smart battery pack of property.
Technical solution of the invention is：A kind of smart battery pack includes the battery pack with multiple batteries, feature
It is：Further include main control module, lifting/voltage reducing module and voltage class detection module, the output of integral battery group and main control module,
Lifting/voltage reducing module and the electrical connection of voltage class detection module for each device for providing working power, the voltage class detection
The output end of module is electrically connected from the input terminal of main control module for providing the information of voltage needed for different electric equipment products to master control
Module, the main control module are equipped with PWM units, the input of the output end and lifting/voltage reducing module of the PWM units of the main control module
Output voltage of the end electrical connection for adjusting lifting/voltage reducing module, the output end of the lifting/voltage reducing module are used for and electric equipment products
Power input is electrically connected.
With the above structure, the present invention has the following advantages：
Smart battery pack of the present invention, will using voltage class detection module in the case where the number of batteries of battery pack is constant
Information of voltage needed for different electric equipment products is sent to main control module, and main control module is according to the voltage requirements controls of different electric equipment products
PWM units processed export different duty ratios, and to the output voltage of adjustable lifting/voltage reducing module, i.e., the smart battery pack is defeated
Go out that voltage is adjustable, and since the number of batteries of battery pack is constant, thus can accomplish to install the PCB of the above-mentioned module of smart battery pack
The size of plate and shell only needs a kind of use demand of the electric equipment products of i.e. applicable different voltages grade, design and produce at
This reduction, versatility are preferable.
Preferably, the voltage class detection module includes adjustable first sampling resistor of two resistance values and the second sampling
Resistance, one end ground connection of first sampling resistor, the other end are electrically connected with one end of the second sampling resistor, second sampling
The other end of resistance is electrically connected with the anode of integral battery group, and the junction of first sampling resistor and the second sampling resistor is made
It is electrically connected with the input terminal of main control module for the output end of voltage class detection module.The setting is by adjusting the first sampling resistor
With the resistance value of the second sampling resistor, you can the voltage value for changing the junction of the first sampling resistor and the second sampling resistor, to
It can indicate the information of voltage needed for different electric equipment products, required component is few, realizes convenient and reliable.
Preferably, the voltage class detection module includes an at least button and actuation of keys detection circuit, it is described
The output of integral battery group is electrically connected with voltage class detection module, refers to output and the actuation of keys detection electricity of integral battery group
Road is electrically connected, the output end and main control module of the output end of the actuation of keys detection circuit as voltage class detection module
Input terminal is electrically connected.The setting can equally obtain different output signals by way of button, so as to indicate different electricity
Information of voltage needed for device product, required component is few, realizes convenient and reliable.
Preferably, further including battery cell monitoring module, the battery cell monitoring module is equipped with parameter sampling channel and power supply is logical
Disconnected control channel, the parameter sampling channel are electrically connected with the parameter sampling circuit of battery pack, the output of the integral battery group
It is electrically connected with lifting/voltage reducing module by the on/off control channel of battery cell monitoring module, in parameter sampling Air conduct measurement
To cutting off whole battery pack when exception to lifting/voltage reducing module for power supply.The setting can monitor battery in real time by battery cell monitoring module
The parameter of group, and whole battery pack can be cut off when parameter is abnormal to lifting/voltage reducing module for power supply, so as to integrated circuit
It plays a protective role, use is safer.
Preferably, the battery cell monitoring module is additionally provided with communication interface, the battery cell monitoring module passes through communication interface
It is communicated to connect with main control module.The setting can make main control module share the various parameters that battery cell monitoring module is acquired, so as to
When parameter is abnormal, the PWM units for controlling main control module no longer export control signal, so as to further to integrated circuit
It plays a protective role.
Preferably, the parameter sampling channel includes plurality of voltages sampling channel, each batteries of battery pack it is positive and negative
Pole is electrically connected with each voltage sample channel of battery cell monitoring module respectively, for arriving/owing in any voltage sample Air conduct measurement
Battery pack is cut off to lifting/voltage reducing module for power supply by on/off control channel when pressure.The setting can occur in any batteries
Cross/undervoltage condition when, all integrated circuit is protected, uses safety and reliability.
Preferably, the parameter sampling channel includes total current sampling channel, the total current sampling electricity of the battery pack
Road is electrically connected with the total current sampling channel of battery cell monitoring module.The setting can be further right in the case where total current is excessive
Integrated circuit plays a protective role, and uses safety and reliability.
Another technical problem to be solved by the present invention is that：There is provided a kind of output voltage of battery pack it is adjustable, design and produce
The preferable electric tool of cost reduction, versatility.
Technical solution of the invention is：A kind of electric tool, including ontology, it is characterised in that：It is set on the ontology
There is above-mentioned smart battery pack.
With the above structure, the present invention has the following advantages：
Smart battery pack output is adjusted in the case where the number of batteries of smart battery pack is constant in electric tool of the present invention
Different voltage, so as to accomplish that the size of the pcb board and shell of installing the above-mentioned module of smart battery pack only needs one kind i.e.
The use demand of the electric tool of applicable different voltages grade, designs and produces cost reduction, and versatility is preferable.
Description of the drawings：
Fig. 1 is the schematic diagram of the function of smart battery pack in embodiment 1；
Fig. 2 is the peripheral circuit diagram of battery cell monitoring module in embodiment 1；
Fig. 3 is a kind of circuit diagram of voltage class detection module in embodiment 1；
Fig. 4 is the structural schematic diagram of electric tool in embodiment 2；
In figure：1- battery packs, 2- main control modules, 3- lifting/voltage reducing modules, 4- voltage class detection modules, 5-PWM units,
The first sampling resistors of 6-, the second sampling resistors of 7-, 8- battery cell monitoring modules, 9- on/off control channels, 10- communication interfaces,
11- voltage samples channel, 12- total current sampling channels, 13- battery capacity indication modules, 14- power tool bodies, 15- shells, 16-
The anode of integral battery group.
Specific implementation mode
Below in conjunction with the accompanying drawings, and in conjunction with the embodiments the present invention is described further.
Embodiment 1：
A kind of smart battery pack includes the battery pack 1 with multiple batteries, is equipped with 5 batteries in the present embodiment, further includes
Main control module 2, lifting/voltage reducing module 3 and voltage class detection module 4, output and main control module 2, the lifting/lowering of integral battery group 1
Die block 3 and the electrical connection of voltage class detection module 4 for each device for providing working power, the voltage class detection module
4 output end is electrically connected from the input terminal of main control module 2 and gives master control mould for providing the information of voltage needed for different electric equipment products
Block 2, the main control module 2 are equipped with PWM units 5, output end and the lifting/voltage reducing module 3 of the PWM units 5 of the main control module 2
Input terminal is electrically connected the output voltage for adjusting lifting/voltage reducing module 3, and the output end of the lifting/voltage reducing module 3 is used for and electric appliance
The power input of product is electrically connected.
Smart battery pack of the present invention utilizes voltage class detection module 4 in the case where the number of batteries of battery pack 1 is constant
Information of voltage needed for different electric equipment products is sent to main control module 2, main control module 2 is according to the voltage need of different electric equipment products
Control PWM units 5 are asked to export different duty ratios, to the output voltage of adjustable lifting/voltage reducing module 3, the i.e. intelligent battery
The output voltage of packet is adjustable, and since the number of batteries of battery pack 1 is constant, thus can accomplish that the above-mentioned mould of smart battery pack is installed
The pcb board of block and the size of shell 15 only need a kind of use demand of the electric equipment products of i.e. applicable different voltages grade, if
Meter and production cost reduce, and versatility is preferable.
Preferably, the voltage class detection module 4 is adopted including adjustable first sampling resistor 6 of two resistance values and second
Sample resistance 7, one end ground connection of first sampling resistor 6, the other end is electrically connected with one end of the second sampling resistor 7, and described the
The other end of two sampling resistors 7 is electrically connected with the anode 16 of integral battery group 1, the sampling of the first sampling resistor 6 and second electricity
The junction of resistance 7 is electrically connected as the output end of voltage class detection module 4 with the input terminal of main control module 2.The setting passes through
Adjust the resistance value of the first sampling resistor 6 and the second sampling resistor 7, you can change the first sampling resistor 6 and the second sampling resistor 7
The voltage value of junction, so as to indicate the information of voltage needed for different electric equipment products, required component is few, realizes convenient and reliable.
Preferably, the voltage class detection module 4 includes an at least button and actuation of keys detection circuit, it is described
Actuation of keys detection circuit uses the prior art, and output and the voltage class detection module 4 of the integral battery group 1 are electrically connected
It connects, refers to that the output of integral battery group 1 is electrically connected with actuation of keys detection circuit, the output end of the actuation of keys detection circuit
Output end as voltage class detection module 4 is electrically connected with the input terminal of main control module 2.The setting is same by way of button
Sample can obtain different output signals, and so as to indicate the information of voltage needed for different electric equipment products, required component is few, realize
It is convenient and reliable.
Preferably, further including battery cell monitoring module 8, the battery cell monitoring module 8 is equipped with parameter sampling channel and power supply
Break-make control channel 9, the parameter sampling channel are electrically connected with the parameter sampling circuit of battery pack 1, the integral battery group 1
Output is electrically connected by the on/off control channel 9 of battery cell monitoring module 8 with lifting/voltage reducing module 3, for logical in parameter sampling
Road cuts off whole battery pack 1 and powers to lifting/voltage reducing module 3 when detecting exception.The setting can be real-time by battery cell monitoring module 8
The parameter of battery pack 1 is monitored, and whole battery pack 1 can be cut off when parameter is abnormal and powered to lifting/voltage reducing module 3, to
It can play a protective role to integrated circuit, use is safer.
Preferably, the battery cell monitoring module 8 is additionally provided with communication interface 10, the battery cell monitoring module 8 passes through communication
Interface 10 is communicated to connect with main control module 2, and the present embodiment uses I2C communication interfaces 10.The setting can make the shared electricity of main control module 2
The various parameters that cell monitoring module 8 is acquired, so as to when parameter is abnormal, control the PWM units 5 of main control module 2 not
Control signal is exported again, so as to further play a protective role to integrated circuit.
Preferably, the parameter sampling channel includes plurality of voltages sampling channel 11, each batteries of battery pack 1 are just
Cathode is electrically connected with each voltage sample channel 11 of battery cell monitoring module 8 respectively, for being detected in any voltage sample channel 11
Arrived/it is under-voltage when by on/off control channel 9 cut off battery pack 1 to lifting/voltage reducing module 3 power.The setting can be any
Batteries occurred/undervoltage condition when, all integrated circuit is protected, uses safety and reliability.
Preferably, the parameter sampling channel includes total current sampling channel 12, the total current sampling of the battery pack 1
Circuit is electrically connected with the total current sampling channel 12 of battery cell monitoring module 8, and the total current sample circuit is using the prior art
It can.The setting further can play a protective role to integrated circuit, use safety and reliability in the case where total current is excessive.
Preferably, further including battery capacity indication module 13, the battery capacity indication module 13 is electrically connected with main control module 2, institute
It states battery capacity indication module 13 and multiple indicator lights can be used, each indicator light respectively represents different electricity remaining values.The setting can be straight
The charge condition for showing battery pack 1 is seen, use is more intuitive and reliable.
Preferably, the model BQ76920 of the battery cell monitoring module 8.The battery cell monitoring module 8 of the model can be very well
Meet the above demand, integrated level is high, cost performance is suitable, function admirable.
Embodiment 2：
A kind of electric tool, the present embodiment is by taking electric drill as an example, including ontology 14, and the ontology 14 is equipped in embodiment 1
The smart battery pack.
Preferably, the smart battery pack further includes shell 15, the removable ontology mounted on electric drill of the shell 15
On 14.The setting not only can be such that power tool body 14 is separately produced with smart battery pack, using the versatility of smart battery pack,
It is greatly improved production efficiency, and in the case that operation needs the electric tool using different voltages grade outdoors, only needs
Carry a smart battery pack, it is more convenient to use, and smart battery pack or ontology 14 is any be damaged when,
It is all not necessarily to integral replacing, repair is more convenient.
Claims (8)
1. a kind of smart battery pack includes the battery pack (1) with multiple batteries, it is characterised in that：It further include main control module
(2), lifting/voltage reducing module (3) and voltage class detection module (4), the output of integral battery group (1) and main control module (2), rise/
Voltage reduction module (3) and voltage class detection module (4) electrical connection for each device for providing working power, the voltage class inspection
The output end for surveying module (4) is believed from the electrical connection of the input terminal of main control module (2) for providing the voltage needed for different electric equipment products
Cease and give main control module (2), the main control module (2) be equipped with PWM units (5), the PWM units (5) of the main control module (2) it is defeated
Outlet is electrically connected the output voltage for adjusting lifting/voltage reducing module (3), the lifting/lowering with the input terminal of lifting/voltage reducing module (3)
The output end of die block (3) with the power input of electric equipment products for being electrically connected.
2. a kind of smart battery pack according to claim 1, it is characterised in that：Voltage class detection module (4) packet
Include adjustable first sampling resistor (6) of two resistance values and the second sampling resistor (7), a termination of first sampling resistor (6)
Ground, the other end are electrically connected with the one end of the second sampling resistor (7), the other end and integral battery of second sampling resistor (7)
The anode (16) of group (1) is electrically connected, and the junction of first sampling resistor (6) and the second sampling resistor (7) is as voltage etc.
The output end of grade detection module (4) is electrically connected with the input terminal of main control module (2).
3. a kind of smart battery pack according to claim 1, it is characterised in that：Voltage class detection module (4) packet
Include an at least button and actuation of keys detection circuit, output and the voltage class detection module (4) of the integral battery group (1)
Electrical connection, refers to that the output of integral battery group (1) is electrically connected with actuation of keys detection circuit, the actuation of keys detection circuit
Output end is electrically connected as the output end of voltage class detection module (4) with the input terminal of main control module (2).
4. a kind of smart battery pack according to claim 1, it is characterised in that：Further include battery cell monitoring module (8), it is described
Battery cell monitoring module (8) is equipped with parameter sampling channel and on/off control channel (9), the parameter sampling channel and battery pack
(1) parameter sampling circuit electrical connection, the on/off that the output of the integral battery group (1) passes through battery cell monitoring module (8)
Control channel (9) is electrically connected with lifting/voltage reducing module (3), for cutting off integral battery when parameter sampling Air conduct measurement is to exception
Group (1) is powered to lifting/voltage reducing module (3).
5. a kind of smart battery pack according to claim 4, it is characterised in that：The battery cell monitoring module (8) is additionally provided with
Communication interface (10), the battery cell monitoring module (8) are communicated to connect by communication interface (10) and main control module (2).
6. a kind of smart battery pack according to claim 4, it is characterised in that：The parameter sampling channel includes Multi-path electricity
Press sampling channel (11), the positive and negative anodes of each batteries of battery pack (1) logical with each voltage sample of battery cell monitoring module (8) respectively
Road (11) is electrically connected, for detected in any voltage sample channel (11)/it is under-voltage when by on/off control channel (9)
Battery pack (1) is cut off to power to lifting/voltage reducing module (3).
7. a kind of smart battery pack according to claim 4, it is characterised in that：The parameter sampling channel includes total current
Sampling channel (12), the total current sampling channel of the total current sample circuit and battery cell monitoring module (8) of the battery pack (1)
(12) it is electrically connected.
8. a kind of electric tool, including ontology (14), it is characterised in that：The ontology (14) is equipped with claim 1 to right
It is required that any smart battery pack described in 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555160.0A CN108767921A (en) | 2018-06-01 | 2018-06-01 | A kind of smart battery pack and the electric tool with the smart battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555160.0A CN108767921A (en) | 2018-06-01 | 2018-06-01 | A kind of smart battery pack and the electric tool with the smart battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108767921A true CN108767921A (en) | 2018-11-06 |
Family
ID=64001666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810555160.0A Pending CN108767921A (en) | 2018-06-01 | 2018-06-01 | A kind of smart battery pack and the electric tool with the smart battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108767921A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540478A (en) * | 2003-10-29 | 2004-10-27 | 庞宏冰 | Intelligent movable power supply |
| CN202384995U (en) * | 2012-01-12 | 2012-08-15 | 中国计量科学研究院 | Circuit for continuously adjusting and outputting 0-10 V high-stability direct-current voltage |
| CN202957623U (en) * | 2012-10-30 | 2013-05-29 | 上海中科智能控制技术有限公司 | Adjustable mobile power supply |
| US20140009105A1 (en) * | 2011-10-01 | 2014-01-09 | Andy Keates | Voltage management device for a stacked battery |
| CN105896646A (en) * | 2016-04-07 | 2016-08-24 | 东莞市太业电子股份有限公司 | Intelligent buck-boost charging/discharging circuit and charging/discharging method thereof |
-
2018
- 2018-06-01 CN CN201810555160.0A patent/CN108767921A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540478A (en) * | 2003-10-29 | 2004-10-27 | 庞宏冰 | Intelligent movable power supply |
| US20140009105A1 (en) * | 2011-10-01 | 2014-01-09 | Andy Keates | Voltage management device for a stacked battery |
| CN202384995U (en) * | 2012-01-12 | 2012-08-15 | 中国计量科学研究院 | Circuit for continuously adjusting and outputting 0-10 V high-stability direct-current voltage |
| CN202957623U (en) * | 2012-10-30 | 2013-05-29 | 上海中科智能控制技术有限公司 | Adjustable mobile power supply |
| CN105896646A (en) * | 2016-04-07 | 2016-08-24 | 东莞市太业电子股份有限公司 | Intelligent buck-boost charging/discharging circuit and charging/discharging method thereof |
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Application publication date: 20181106 |