CN101064363A - Batteries bag and electric tool having the same - Google Patents
Batteries bag and electric tool having the same Download PDFInfo
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- CN101064363A CN101064363A CNA2006101691322A CN200610169132A CN101064363A CN 101064363 A CN101064363 A CN 101064363A CN A2006101691322 A CNA2006101691322 A CN A2006101691322A CN 200610169132 A CN200610169132 A CN 200610169132A CN 101064363 A CN101064363 A CN 101064363A
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Abstract
A kind of battery package (1) is used to supply power to load (6); it includes shell, at least the first batteries (3) and the second battery (4) which is in the shell and parallel connected with each other, said first batteries (3) supplies power to said second battery (4) and said load (6), said second battery (4) only supplies power to said load (6), the battery package (1) possesses energy storage unit, and provides a kind of electromotion tool (8) equipped with this battery package (1).
Description
Technical field
The present invention relates to a kind of power brick, particularly, the present invention relates to a kind of electric tool that has the power brick of two kinds of batteries and have this power brick.
Background technology
Existing hybrid battery bag has disclosed lithium battery and nickel radical battery is positioned at same power brick as EP0641089, and the nickel radical battery internal resistance is low, high output voltage is provided and big relatively electric current is provided; Lithium battery internal resistance height provides low output voltage and relatively little electric current is provided, and two kinds of loads that battery is corresponding different are to prevent providing low-voltage and the waste capacity from high-voltage battery.
GB2384615 has disclosed and a kind ofly provides the power supply of different electric pressures by a power brick, and a kind of battery types is a lithium battery, and another kind of battery types is a nickel radical battery.
US5223351 has disclosed a kind of double power-supply system that is used to provide different size of current, is mainly used in automotive field.This patent is by providing the lead-acid battery of two kinds of parallel connections, thus the current values that different sizes are provided to target, and two kinds of batteries is measure-alike, is beneficial to the standardization of power brick.
In the above-mentioned power brick, specific energy-storage units is not arranged all, the operating time that makes power brick once charge is shorter, needs frequent charge, and the battery of various different qualities is not fully made up and utilize.
Summary of the invention
The objective of the invention is to, a kind of power brick is provided, a battery and the battery mainly as the working cell mainly as energy-storage units is arranged in this power brick.
Another object of the present invention is to, under the prerequisite that keeps power brick certain volume and weight, provide a kind of power brick capacious.
Another purpose of the present invention is, a kind of power brick that does not need frequent by the power source charges beyond the power brick is provided, and the operating time that power brick is once charged can obtain prolonging.
A further object of the present invention is the battery of different qualities of adequately protecting, and prevents that battery is damaged and prolongs the useful life of battery.
Further purpose of the present invention provides the electric tool that a kind of power brick Capacity Ratio can provide bigger current range more greatly, again.
A kind of power brick is used for powering load, comprises housing, is positioned at least one first battery of housing and second battery, and described first battery is given described second battery and described electric, and described second battery is only given described electric.
Described first battery and second battery are made up of a plurality of battery units respectively.
Described first battery and second battery are arranged in parallel, and described second battery is more suitable for providing big electric current to described load than described first battery.
The rated capacity of described first battery is higher than the rated capacity of described second battery.
Described first battery is a lithium-base battery, as lithium ion battery or lithium polymer battery etc.
Described second battery is a nickel radical battery, as Ni-MH battery etc.
A kind of electric tool comprises workpiece, drives the driver part of described workpiece, and described electric tool also comprises the power brick that is used for to described driver part power supply, and described power brick is aforesaid power brick.
Owing to will be suitable for the battery of big current work as the groundwork power supply, with the battery of high power capacity mainly as energy-storage units, made full use of the characteristic of different batteries, make power brick under the prerequisite that keeps certain volume and weight, the time lengthening that power brick is once charged also can provide bigger current range.Correspondingly, the electric tool that has this power brick also possesses above-mentioned benefit.
Description of drawings
Fig. 1 is the charging principle figure of power brick of the present invention.
Fig. 2 is a power brick of the present invention when the fundamental diagram of the required electric current of load during greater than limit value.
Fig. 3 is a power brick of the present invention when the fundamental diagram of the required electric current of load during smaller or equal to limit value.
Fig. 4 is the workflow diagram of power brick of the present invention.
Fig. 5 is the charging flow figure of power brick of the present invention.
Fig. 6 is the electric tool schematic diagram that the present invention has power brick.
Wherein:
1 power brick, 3 first batteries, 4 second batteries
5 switch elements, 6 loads, 7 integration modules
8 electric tools, 9 workpieces, 10 driver parts
11 cathode output ends, 12 cathode output ends, 13 first current measuring elements
14 second current measuring elements, 15 voltage detector components, 100 chargers
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, power brick 1 is used to load 6 power supplies, it comprises housing, be positioned at first battery 3 and second battery 4 that housing is arranged in parallel, the cathode output end of power brick 1 is 11, cathode output end is that the negative pole that the positive pole of 12, the first batteries 3 and second battery 4 is received cathode output end 11, the first batteries 3 and second battery 4 is received cathode output end 12.Load 6 is pressed both positive and negative polarity and is connected with power brick 1, controls power on/off by switch element 5, and it is interior or outer that switch element 5 can be arranged on power brick 1.
In the preferred embodiment, first battery 3 adopts lithium ion battery, and second battery 4 adopts Ni-MH battery.
In the preferred embodiment, 6 rated capacities of first battery, 3 usefulness are 3Ah, and rated voltage is that the lithium ionic cell unit of 3.6V is composed in series, and 10 rated capacities of second battery, 4 usefulness are 2.2Ah, and rated voltage is that the Ni-MH battery units in series of 1.2V is formed.Certainly, it is the connected mode of series connection that battery unit is not limited to, and can adopt multiple compound modes such as parallel connection, elder generation's series connection back parallel connection or parallel connection back series connection earlier, to satisfy first battery 3 and second battery, 4 needed voltage and capacity.And the capacity of first battery 3 and second battery 4 and voltage also all looks the demand of different loads 6 and changes, and is not limited to above-mentioned voltage, capacity and battery unit quantity.The volume of battery unit also can be different with characteristic because of different battery varieties with shape.
As shown in Figure 1, also be provided with the integration module 7 that is connected with first battery 3 in the power brick 1, this integration module 7 comprises microprocessing unit and electronic circuit, and wherein microprocessing unit is main control element, electronic circuit is an executive component, and microprocessor can be used for controlling electronic circuit.Also be provided with first and second current measuring elements 13,14 and voltage detector component 15 in the power brick 1, microprocessing unit can read electric current and voltage in the circuit according to current measuring element 13,14 and voltage detector component 15.
In order to prevent first battery 3 owing to providing big electric current to damage or shortening its useful life, so microprocessing unit is limited to the output current of first battery 3 in the limit value, this limit value can be decided on the characteristic of first battery 3.In this preference, this limit value is 3C (C is the load current value of single battery, here is the load current value of the single battery of lithium battery), and the load current value of lithium battery is generally 3A, can certainly be other numerical value, and limit value is 9A like this.
As Fig. 2 and shown in Figure 4, when power brick 1 is given load 6 power supplies, for example, the rated voltage of load 6 is 12V, the specified electric current that needs is 30A, that is to say when load 6 required electric currents surpass limit value 9A, load 6 is connected to the both positive and negative polarity output 11 and 12 of power brick 1 by switch element 5, power brick 1 gives load 6 power supplies by switch element 5, first battery 3 at most only provides the electric current that is no more than limit value 3C (9A) to give load 6, and load 6 required other electric currents (21A) are then provided by second battery 4 that is suitable for big electric current power supply.
As shown in Figure 3 and Figure 4, when power brick 1 is given load 6 power supplies, for example, the rated voltage of load 6 is 12V, the specified electric current that needs is 8A, and when that is to say the required electric current of load 6 less than limit value 9A, load 6 is connected to the both positive and negative polarity output 11 and 12 of power brick 1 by switch element 5, power brick 1 gives load 6 power supplies by switch element 5, at this moment only needs first battery 3 to provide the electric current of 8A just passable.In this case, microprocessing unit control electronic circuit makes the output voltage of the battery 3 of winning a little more than second battery, 4 terminal voltages, such second battery 4 will be not can powering load, and when voltage detector component 15 detects the voltage of the voltage of first battery 3 greater than second battery 4, and the voltage of second battery 4 is less than rated voltage, at this moment first battery 3 will give second battery 4 chargings, controlling first battery 3 by microprocessing unit provides suitable electric current to second battery 4, characteristic according to Ni-MH battery, the electric current of general 1C is proper, and the capacity that detects second battery 4 up to microprocessing unit reaches rated value and just stops charging.The method of discrimination that Ni-MH battery is full of is complicated, and is prior art, does not here just give unnecessary details.
As shown in Figure 1 and Figure 4, when power brick 1 is not given load 6 power supplies, when just switch element 5 disconnects, when microprocessor detects the voltage of the voltage of first battery 3 greater than second battery 4 by voltage detector component 15, and the voltage of second battery 4 is less than rated voltage, at this moment first battery 3 will give second battery 4 chargings, controlling first battery 3 by microprocessing unit provides suitable electric current to second battery 4, characteristic according to Ni-MH battery, the electric current of general 1C (here being the load current value of the single battery of Ni-MH battery) is proper, and the capacity that detects second battery 4 up to microprocessing unit reaches rated value and just stops charging.Give in second battery, 4 charging processes at first battery 3, the voltage of first battery 3 can reduce gradually, when dropping to voltage with second battery 4 when identical or lower than the voltage of second battery 4, at this moment can not stop in the charging process yet, because the electronic circuit of microprocessor control at this moment makes the output voltage of the battery 3 of winning be higher than the voltage of second battery 4, continue to give second battery 4 chargings, be full of up to second battery 4.If the voltage of first battery 3 drops to its protection voltage certainly, at this moment can stop 4 chargings of second battery.So just can make full use of the memory function of first battery 3, allow second battery 4 give full play to its function as the working cell.So also just prolonged the operating time that power brick 1 is once charged.
Have only the voltage when first battery 3 and second battery 4 all to drop to when being not enough to load 6 power supplies, this power brick 1 is just by extraneous power source charges, and next charging method is described in detail.
As Fig. 1 and shown in Figure 5, when giving 3 chargings of first battery by charger 100, characteristic according to lithium battery, earlier (just electric current is constant in the mode of constant current, the mode that voltage raises) give first battery 3 chargings, when making the voltage of first battery 3 rise to rated value, (just voltage is constant in the mode of constant voltage again, the mode that electric current reduces) to its charging, judge up to charger 100 like this and just stop after first battery 3 has been full of electricity 3 chargings of first battery, and according to the characteristic of lithium battery, its charging current reaches 3% of its lithium battery rated value and just is full of; Microprocessing unit is surveyed the voltage that inspection first battery 3 is given second battery 4 by voltage detector component 15 simultaneously, when the voltage of first battery 3 voltage greater than second battery 4, and the voltage of second battery 4 is less than rated voltage, at this moment first battery 3 gives second battery 4 chargings, controlling first battery 3 by microprocessing unit provides suitable electric current to second battery 4, characteristic according to Ni-MH battery, the electric current of general 1C (C is the load current value of single battery) is proper, and the capacity that detects second battery 4 up to microprocessing unit reaches rated value and just stops charging.Give in second battery, 4 charging processes at first battery 3, the voltage of first battery 3 can reduce gradually, when dropping to voltage with second battery 4 when identical or lower than the voltage of second battery 4, at this moment can not stop charging yet, because the electronic circuit of microprocessor control at this moment makes the output voltage of the battery 3 of winning be higher than the voltage of second battery 4, continue to give second battery 4 chargings, be full of up to second battery 4.If the voltage of first battery 3 drops to its protection voltage certainly, at this moment can stop 4 chargings of second battery.
Because little, in light weight, the energy density of lithium ionic cell unit volume, relatively is suitable for little electric current power supply than higher, can be used as energy-storage units; And the Ni-MH battery unit volume is big, heavy, energy density is low, relatively is suitable for bigger relatively electric current power supply, can be used as the groundwork power supply.The combination of above-mentioned two types of batteries makes the aspects such as capacity, power brick 1 volume and weight of power brick 1 battery in the current value range of giving load 6 power supplies, power brick 1 all be highly profitable.But creating conception of the present invention is not limited in above-mentioned battery types, can be substituted by other battery.
As shown in Figure 6, electric tool 8 comprises workpiece 9, drives the driver part 10 of workpiece 9, and power brick 1 is used for to driver part 10 power supplies, and driver part 10 herein can be electromagnetically operated valve or motor etc.The electric tool of illustrating among this figure 8 is D.C. electric drill, can certainly be direct current drive screwdriver, electric hammer, electric circular saw, reciprocating saw or the like.
When electric tool 8 work, power brick 1 gives driver part 10 power supplies, starts working thereby driver part 10 drives workpiece 9.When first battery 3 in the power brick 1 and second battery, 4 capacity drop to when being not enough to driver part 9 power supplies, relend and help extraneous power supply that power brick 1 is charged.
Because little, in light weight, the energy density of lithium ionic cell unit volume, relatively is suitable for little electric current power supply than higher, criticize or electric drill etc. as electric screw; And if apply to the electric tool that needs big electric current, on electric circular saw or electric hammer, will be too big because of electric current, and make the very fast heating of power brick, control circuit in the lithium battery will start protection mechanism like this, it is quit work, can not continue outside power supply, electric tool just can't normally use like this; And the Ni-MH battery unit volume is big, heavy, rated capacity is low, relatively is suitable for bigger relatively electric current power supply, but because its energy density is lower, will soon have put electricity, can not satisfy the needs that work long hours.Particularly in the instrument of some combinations, electric drill, the illuminating lamp of the little electric current of existing needs, the electric circular saw that needs big electric current, reciprocating saw or the like are arranged again, these combination tools are generally just joined one to two power brick, if list top this situation will occur with lithium battery or Ni-MH battery, if it is not with a kind of lithium battery and two kinds of power brick of a kind of Ni-MH battery, just well compatible.So just need the combination of above-mentioned two types of batteries, the function that makes power brick 1 existing little electric current and big two kinds of discharges of electric current has very big capacity again, conditions oneself to long hours of work.Aspects such as the capacity of the power brick 1 of creating conception of the present invention battery in the current value range of giving load 6 power supplies, power brick 1, power brick 1 volume and weight all are highly profitable, and have prolonged the operating time that power brick 1 is once charged.
Claims (10)
1. a power brick (1), be used for powering to load (6), comprise housing, be positioned at least one first battery (3) and second battery (4) of housing, it is characterized in that: described first battery (3) is given described second battery (4) and described load (6) power supply, and described second battery (4) is only given described load (6) power supply.
2. power brick as claimed in claim 1 (1) is characterized in that: be connected with microprocessing unit with described first battery (3), described microprocessing unit is controlled at the output current of described first battery (3) in the limit value.
3. power brick as claimed in claim 2 (1), it is characterized in that: described power brick (1) is described load (6) power supply, when the required electric current of described load (6) surpasses the limit value of described first battery (3), described first battery (3) provides the electric current of described limit value to described load (6), and other required electric current of described load (6) is all provided by described second battery (4).
4. power brick as claimed in claim 2 (1), it is characterized in that: when described power brick (1) is not given described load (6) power supply, the capacity of described first battery (3) is higher than the capacity of described second battery (4), and described second battery (4) capacity is less than its rated capacity, and described first battery (3) is given described second battery (4) charging.
5. power brick as claimed in claim 2 (1), it is characterized in that: described first battery (3) also is connected with the electronic circuit by microprocessing unit control, described power brick (1) is described load (6) power supply, when the required electric current of described load (6) during less than the limit value of described first battery (3), described first battery of described electronic circuit control (3) output voltage is a little more than described second battery (4) terminal voltage, and described first battery (3) is given described load (6) power supply.
6. power brick as claimed in claim 5 (1), it is characterized in that: the capacity of described first battery (3) is higher than the capacity of described second battery (4), and described second battery (4) capacity is less than its rated capacity, and described first battery (3) is given described second battery (4) charging.
7. as claim 4 or 6 described power brick (1), it is characterized in that: described microprocessing unit (7) described second battery of control (4) charging.
8. power brick as claimed in claim 1 (1) is characterized in that: described first battery (3) is a lithium-base battery.
9. power brick as claimed in claim 1 (1) is characterized in that: described second battery (4) is a nickel radical battery.
10. an electric tool (8), comprise workpiece (9), drive the driver part (10) of described workpiece (9), it is characterized in that: described electric tool (8) also comprise be used for to described driver part (10) power supply as the described power brick of one of claim 1～9 (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101691322A CN101064363B (en) | 2006-04-30 | 2006-12-12 | Batteries bag and electric tool having the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610077551 | 2006-04-30 | ||
| CN200610077551.3 | 2006-04-30 | ||
| CN2006101691322A CN101064363B (en) | 2006-04-30 | 2006-12-12 | Batteries bag and electric tool having the same |
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| Publication Number | Publication Date |
|---|---|
| CN101064363A true CN101064363A (en) | 2007-10-31 |
| CN101064363B CN101064363B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101691322A Expired - Fee Related CN101064363B (en) | 2006-04-30 | 2006-12-12 | Batteries bag and electric tool having the same |
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| CN (1) | CN101064363B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547851C (en) * | 2007-12-06 | 2009-10-07 | 中国科学院电工研究所 | Lithium ion battery-super capacitor mixed energy storage optical voltage system |
| CN102205534A (en) * | 2010-03-31 | 2011-10-05 | 株式会社牧田 | Electric power tool |
| CN103401288A (en) * | 2013-08-06 | 2013-11-20 | 南车株洲电力机车有限公司 | Arc-discharge prevention charging method and system for energy accumulation type electric traction vehicle |
| CN105305530A (en) * | 2014-07-01 | 2016-02-03 | 福特全球技术公司 | System and method for battery management |
| WO2016178147A1 (en) * | 2015-05-06 | 2016-11-10 | 朗陞科技集团(香港)有限公司 | Lithium battery assembly capable of providing high discharge pulse within wide temperature range, and forming method |
| CN106300457A (en) * | 2015-05-18 | 2017-01-04 | 南京金塔新能源科技有限公司 | Times origin system, UPS equipment and the control method thereof of a kind of UPS |
| CN106300626A (en) * | 2015-05-18 | 2017-01-04 | 刘粤荣 | The double power-supply system of a kind of UPS, UPS equipment and control method thereof |
| WO2019037793A1 (en) * | 2017-08-25 | 2019-02-28 | 苏州宝时得电动工具有限公司 | Electric tool and method for supplying power to electric tool |
| CN109995096A (en) * | 2017-12-29 | 2019-07-09 | 苏州宝时得电动工具有限公司 | More packets are in parallel mutually to fill control circuit, control method and electric tool |
| CN112119522A (en) * | 2018-07-11 | 2020-12-22 | 康明斯公司 | Integration of secondary lithium ion batteries in power generation |
| WO2024027334A1 (en) * | 2022-08-05 | 2024-02-08 | 南京泉峰科技有限公司 | Charging system |
-
2006
- 2006-12-12 CN CN2006101691322A patent/CN101064363B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547851C (en) * | 2007-12-06 | 2009-10-07 | 中国科学院电工研究所 | Lithium ion battery-super capacitor mixed energy storage optical voltage system |
| CN102205534A (en) * | 2010-03-31 | 2011-10-05 | 株式会社牧田 | Electric power tool |
| CN102205534B (en) * | 2010-03-31 | 2014-08-06 | 株式会社牧田 | Electric power tool |
| CN103401288A (en) * | 2013-08-06 | 2013-11-20 | 南车株洲电力机车有限公司 | Arc-discharge prevention charging method and system for energy accumulation type electric traction vehicle |
| CN103401288B (en) * | 2013-08-06 | 2016-06-01 | 南车株洲电力机车有限公司 | A kind of energy storage type electric traction vehicle prevents chargingmethod and the system of arcing |
| CN105305530A (en) * | 2014-07-01 | 2016-02-03 | 福特全球技术公司 | System and method for battery management |
| WO2016178147A1 (en) * | 2015-05-06 | 2016-11-10 | 朗陞科技集团(香港)有限公司 | Lithium battery assembly capable of providing high discharge pulse within wide temperature range, and forming method |
| CN106229587A (en) * | 2015-05-06 | 2016-12-14 | 朗陞科技集团(香港)有限公司 | Lithium battery assembly capable of providing high discharge pulse in wide temperature range and forming method |
| CN106300457A (en) * | 2015-05-18 | 2017-01-04 | 南京金塔新能源科技有限公司 | Times origin system, UPS equipment and the control method thereof of a kind of UPS |
| CN106300626A (en) * | 2015-05-18 | 2017-01-04 | 刘粤荣 | The double power-supply system of a kind of UPS, UPS equipment and control method thereof |
| CN106300626B (en) * | 2015-05-18 | 2019-03-22 | 广东捷翔动力科技有限公司 | A kind of double power-supply system of UPS, UPS equipment and its control method |
| WO2019037793A1 (en) * | 2017-08-25 | 2019-02-28 | 苏州宝时得电动工具有限公司 | Electric tool and method for supplying power to electric tool |
| CN110301054A (en) * | 2017-08-25 | 2019-10-01 | 苏州宝时得电动工具有限公司 | Electric tool and electric tool method of supplying power to |
| US11450895B2 (en) | 2017-08-25 | 2022-09-20 | Positec Power Tools (Suzhou) Co., Ltd | Electric tool and method for supplying power to electric tool |
| CN109995096A (en) * | 2017-12-29 | 2019-07-09 | 苏州宝时得电动工具有限公司 | More packets are in parallel mutually to fill control circuit, control method and electric tool |
| CN112119522A (en) * | 2018-07-11 | 2020-12-22 | 康明斯公司 | Integration of secondary lithium ion batteries in power generation |
| WO2024027334A1 (en) * | 2022-08-05 | 2024-02-08 | 南京泉峰科技有限公司 | Charging system |
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| CN101064363B (en) | 2012-07-04 |
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