CN106300479A - Battery bag and the electric tool with this battery bag - Google Patents
Battery bag and the electric tool with this battery bag Download PDFInfo
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- CN106300479A CN106300479A CN201510305746.8A CN201510305746A CN106300479A CN 106300479 A CN106300479 A CN 106300479A CN 201510305746 A CN201510305746 A CN 201510305746A CN 106300479 A CN106300479 A CN 106300479A
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- temperature
- cells
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- module
- battery bag
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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
Battery bag includes set of cells and temperature rise protection system；Temperature rise protection system includes temperature collect module, detection module, control switch and control module, and temperature collect module is for detecting the temperature in set of cells, and detection module is for detecting the charging and discharging state of set of cells；Converting unit is for receiving and be converted to by battery temperature signal the battery temperature value of correspondence; whether comparing unit exceedes temperature protection value for the battery temperature value detected in present battery group; recognition unit is for responding the charging and discharging state that discharge and recharge signal identification set of cells is current, and processing unit for controlling disconnection charging and discharging circuit when the battery temperature value in set of cells exceedes the temperature protection value of set of cells current state.In the present invention, temperature rise protection system is arranged at inside high-tension battery bag, and temperature in high-tension battery bag detect the mode using multiple spot to detect, with the temperature of concentrated expression battery bag the safety that improves battery bag.The invention still further relates to a kind of electric tool with this battery bag.
Description
Technical field
The present invention relates to field of power tools, particularly to a kind of battery bag and the electric tool with this battery bag.
Background technology
It is reserved with at present battery temperature detection interface on part electric tool, and temperature carries out the control loop of overheat protector and is positioned at charger or use instrument in gathering battery bag；So, when external circuit (in electric tool) breaks down, the overheat protector controlling loop will be out of control, thus cause cell damage or bring the security risks such as battery bag blast.
Summary of the invention
Based on this, it is necessary to provide a kind of temperature rise protection system that is internally provided with to improve the battery bag of safety.
There is a need to provide a kind of electric tool with this battery bag.
Battery bag includes set of cells and temperature in described set of cells carries out the temperature rise protection system of overheat protector；Set of cells includes some batteries；Described temperature rise protection system includes temperature collect module, detection module, control switch and control module; described set of cells forms charging and discharging circuit with external equipment; described control switch is electrically connected in described charging and discharging circuit; described temperature collect module is for detecting the temperature in described set of cells and producing corresponding battery temperature signal, and described detection module is for detecting the charging and discharging state of described set of cells and exporting the discharge and recharge signal of correspondence；Described control module includes converting unit, recognition unit, comparing unit and processing unit, described converting unit is for receiving and be converted to by described battery temperature signal the battery temperature value of correspondence, described comparing unit is for detecting whether the battery temperature value in present battery group exceedes the temperature protection value of set of cells current state, described recognition unit is for responding the charging and discharging state that described discharge and recharge signal identification set of cells is current, described processing unit switches off the charging and discharging circuit between described set of cells and described external equipment for controlling described control when the battery temperature value in set of cells exceedes the temperature protection value of set of cells current state.
Wherein in an embodiment, described temperature collect module includes at least provided with between two batteries adjacent in described set of cells central area and be arranged at the described battery surface two groups of temperature collect modules near described control module side.
Wherein in an embodiment, described often group temperature collect module includes temperature detection resistance and the first divider resistance, described temperature sense resistance is connected with described first divider resistance, and both common ports electrically connect with described control module, the other end ground connection of described temperature sense resistance, the other end of described first divider resistance is connected with power access end.
Wherein in an embodiment, described often group temperature collect module includes that current-limiting resistance, described temperature sense resistance are electrically connected with described control module by described current-limiting resistance with the common port of described first divider resistance.
Wherein in an embodiment, described temperature collect module also includes that filter capacitor, one end of described filter capacitor are connected with the common port of described temperature sense resistance with described first divider resistance, other end ground connection.
Wherein in an embodiment, described detection module includes the first port, the second port and the 3rd port, described first port electrically connects with described external equipment, described second port is electrically connected between described set of cells and described control switch, described 3rd port electrically connects with described control module, described control switch is electrically connected between described first port and described second port, and electrically connects with described control module the most simultaneously.
Wherein in an embodiment; described temperature rise protection system includes warning indicating module; described processing unit switches off the discharge loop between described set of cells and described external equipment for controlling described control when the battery temperature value in described set of cells exceedes the temperature protection value of set of cells current state and produces alarm signal, and described warning indicating module is used for responding described alarm signal alert.
nullWherein in an embodiment，Described temperature rise protection system also includes reseting module，Described reseting module is used for responding user operation and produces reset signal，Described temperature protection value includes the second temperature protection value when the first temperature protection value when described set of cells is in charged state and described set of cells are in discharge condition，Described processing unit responds described reset signal and closes described warning message and restart described temperature rise protection system，And for when the battery temperature value in described set of cells continues the temperature protection value exceeding set of cells current state，Continue to control described control and switch off the discharge loop between described set of cells and described external equipment，And re-close the charge circuit between described set of cells and described external equipment for controlling the described switch that controls when the battery temperature value in described set of cells is less than described first temperature protection value or described second temperature protection value.
Wherein in an embodiment, described reseting module includes reset switch and the second divider resistance, described reset switch is connected with described second divider resistance, and both common ports electrically connect with described control module, the other end ground connection of described reset switch, the other end of described second divider resistance is connected with power access end.
Electric tool includes main body and for providing the battery bag of electric power for described main body, and described battery bag is battery bag described above.
In the present invention, temperature rise protection system is arranged at inside high-tension battery bag, and in temperature rise protection system against high voltage battery bag, the detection of temperature uses the mode of multiple spot detection, with the temperature of concentrated expression battery bag the safety that improves battery bag.
Accompanying drawing explanation
Fig. 1 be an embodiment of the present invention electric tool in the structural representation of battery bag；
Fig. 2 is the module diagram of temperature rise protection system in the battery bag shown in Fig. 1；
Fig. 3 is the circuit diagram of temperature rise protection system in the battery bag shown in Fig. 2.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Accompanying drawing gives presently preferred embodiments of the present invention.But, the present invention can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make the understanding to the disclosure more thorough comprehensively.
It should be noted that be referred to as " being fixed on " another element when element, it can be directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, and it can be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used the most in the description of the invention is intended merely to describe the purpose of specific embodiment, it is not intended that in limiting the present invention.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.
Refer to Fig. 1 and Fig. 2, electric tool of the present invention in the present embodiment include main body (not shown) and for for main body provide electric power battery bag 10.Wherein, the parts such as motor, drive mechanism it are provided with in main body.And according to the function difference that electric tool realizes, main body is gone back correspondence the work head for realizing this function is installed, such as in the present invention, electric tool is hay mover, and work head can be the blade being arranged in main body the most accordingly.Battery bag 10 is removably installed in power tool body, also can be independent of the outer charging device electrically connected with power tool body of power tool body.
Battery bag 10 includes set of cells 11, temperature rise protection system 13 and display module 15.Set of cells 11 is collectively constituted by multiple batteries.After battery bag 10 electrically connects with power tool body or external power source (hereinafter referred to as external equipment), set of cells 11 forms charging and discharging circuit with external equipment.Temperature rise protection system 13 is for carrying out temperature detection to temperature in set of cells 11, so that battery bag 10 is carried out overheat protector.Display module 15 is arranged at outside set of cells 11, is used for showing battery bag 10 work state information.Wherein, the duty of battery bag 10 includes charged state, discharge condition, alarm condition etc..In this specific embodiment, set of cells 11 is to be formed high pressure lithium battery bag by 24 joint lithium ion batteries.
Temperature rise protection system 13 includes temperature collect module 130, detection module 131, controls switch 132 and control module 133.
Temperature collect module 130 is for detecting the temperature in set of cells 11 and producing corresponding battery temperature signal.In this specific embodiment, temperature collect module 130 at least include being arranged at set of cells 11 central area in the first temperature collect module 1301 between adjacent two batteries and be arranged at set of cells 11 surface the second temperature collect module 1302 near control module 133 side.Owing in set of cells 11 central area, temperature is higher, and owing to control module 133 includes plate body 1338 and the various heater members that are arranged on plate body 1338 (such as, converting unit 1330 mentioned below, recognition unit 1332, comparing unit 1334, processing unit 1336 etc.), during its work, produced heat will affect the temperature of set of cells 11 corresponding region, therefore the first temperature collect module 1301 and the second temperature collect module 1302 are respectively arranged at the position that in set of cells 11, above-mentioned two temperature is higher, to detect battery temperature value peak, guarantee that all batteries will not be damaged because of excess temperature.
The most in the lump referring to Fig. 3, the first temperature collect module 1301 and the second temperature collect module 1302 all include temperature detection resistance R and the first divider resistance R1.In some other embodiment, the quantity of temperature collect module 130 and position can as required depending on.
Temperature sense resistance R and the first divider resistance R1 connects, and both common ports electrically connect with control module 133, and the other end ground connection of temperature sense resistance R, the other end of the first divider resistance R1 is connected with power access end U1.In this specific embodiment, temperature sense resistance R is critesistor, and its resistance changes the most accordingly with the change of temperature in set of cells 11.
Further, often group temperature collect module 130 also includes current-limiting resistance R2, and the common port of temperature sense resistance R and the first divider resistance R1 is electrically connected with control module 133 by current-limiting resistance R2.
Further, often group temperature collect module 130 also includes that filter capacitor C, one end of filter capacitor C are connected with the common port of temperature sense resistance R and the first divider resistance R1, other end ground connection.
Control module 133 includes converting unit 1330, and converting unit 1330 is for receiving and be converted to by battery temperature signal the battery temperature value T of correspondence.Specifically, converting unit 1330 for being converted to the battery temperature value T of correspondence by temperature sense resistance R magnitude of voltage under different resistances.Wherein, the temperature of diverse location during battery temperature T includes the set of cells 11 that the first temperature collect module 1301 and the second temperature collect module 1302 gather respectively.
Detection module 131 is for detecting the charging and discharging state of set of cells 11, and exports the discharge and recharge signal of correspondence.Specifically, detection module 131 includes the first port the 1311, second port 1312 and the 3rd port 1313.First port 1311 electrically connects with external equipment, and the second port 1312 is electrically connected to set of cells 11 and controls between switch 132.3rd port 1313 electrically connects with control module 133 to export to control module 133 corresponding discharge and recharge signal.
Control in the charging and discharging circuit that switch 132 is electrically connected between set of cells 11 and external equipment, for controlling disconnection and the Guan Bi of charging and discharging circuit.In this specific embodiment, control switch 132 to be electrically connected between the first port 1311 and the second port 1312, and electrically connect with control module 133, for being opened or closed the charging and discharging circuit between set of cells 11 and external equipment under the control of control module 133 the most simultaneously.First port 1311 and the second port 1312 are provided commonly for detection and control magnitude of voltage or the current value at switch 132 two ends, to detect the charging and discharging state of set of cells 11 and to export the discharge and recharge signal of correspondence.In this specific embodiment, detection module 131 can be made up of application-specific integrated circuit or Hall current sensing circuit or voltage detecting circuit, feeds back to control module 133 with the charging and discharging state by set of cells 11.Control switch 132 is for being arranged in parallel two metal-oxide-semiconductors, and in some other embodiment, controlling switch 132 also can be relay etc..
Control module 133 also includes recognition unit 1332, comparing unit 1334 and processing unit 1336.Recognition unit 1332 is for responding the charging and discharging state that discharge and recharge signal identification set of cells 11 is current.Comparing unit 1334 is for detecting whether the battery temperature value T in present battery group 11 exceedes the temperature protection value of set of cells 11 current state.Wherein, temperature protection value includes the second temperature protection value T2 when the first temperature protection value T1 when set of cells 11 is in charged state and set of cells 11 are in discharge condition.Processing unit 1336 switches off the charging and discharging circuit between set of cells 11 and external equipment for the control when the battery temperature value T in set of cells 11 exceedes the predetermined temperature protection value of set of cells 11 current state and produces alarm signal.
Specifically; when the predetermined temperature protection value of set of cells 11 current state in any one set of cells 11 gathered in both the first temperature collect module 1301 and the second temperature collect module 1302, processing unit 1336 switches off the charging and discharging circuit between set of cells 11 and external equipment by controlling and produces alarm signal.
Further, temperature rise protection system 13 also includes that warning indicating module 134, warning indicating module 134 are used for responding alarm signal alert.Wherein, in this specific embodiment, warning message is the display lamp of luminous prompting, and in some other embodiment, warning message also can be the caution sounds etc. such as the voice messaging prerecorded of user and/or buzzing, in this no limit.
Further, temperature rise protection system 13 also includes that reseting module 135, reseting module 135 are used for responding user operation and produce reset signal.Specifically, reseting module 135 includes reset switch 1350 and the second divider resistance R3.Wherein, reset switch 1350 can be the soft-touch control of button or other man-machine interaction modes.Reset switch 1350 is connected with the second divider resistance R3, and both common ports electrically connect with control module 133, the other end ground connection of reset switch 1350, and the other end of the second divider resistance R3 is connected with power access end U2.
Processing unit 1336 is additionally operable to respond reset signal and closes warning indicating module 134 and restart temperature rise protection system 13, and for when the battery temperature value in set of cells 11 continues to exceed the first temperature protection value T1 of set of cells current state or the second temperature protection value T2, continue to control the discharge loop between switch 132 disconnection set of cells 11 and external equipment, and be additionally operable to when the battery temperature value T in set of cells 11 less than the first temperature protection value T1 or controls switch 132 during the second temperature protection value T2 and re-closes the charge circuit between set of cells 11 and external equipment.
Specifically; it is currently at charged state when recognition unit 1332 responds discharge and recharge signal identification set of cells 11; and when comparing unit 1334 detects the battery temperature value T in present battery group 11 more than the first temperature protection value T1 simultaneously; control the charge circuit between switch 132 disconnection set of cells 11 and external equipment and produce alarm signal, to play a protective role；While battery temperature value T is less than the first temperature protection value T1, user presses the reset switch 1350 of reseting module 135, and processing unit 1336 controls switch and reopens charge circuit, and closes alarm lamp.
It is currently at discharge condition when recognition unit 1332 responds discharge and recharge signal identification set of cells 11; and when comparing unit 1334 detects the battery temperature value T in present battery group 11 more than the second temperature protection value T2 simultaneously; control the discharge loop between switch 132 disconnection set of cells 11 and external equipment and produce alarm signal, to play a protective role.While battery temperature value T is less than the second temperature protection value T2, user presses reset switch 1350 in reseting module 135, and processing unit 1336 controls switch and reopens charge circuit, and closes alarm lamp.
In the present invention, to be arranged at high-tension battery bag 10 internal for temperature rise protection system 13, and temperature in high-tension battery bag 10 detect the mode using multiple spot to detect by temperature rise protection system 13, with the temperature of concentrated expression battery bag 10 safety that improves battery bag 10.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. battery bag, it is characterised in that including:
Set of cells, including some batteries；And
Temperature in described set of cells is carried out the temperature rise protection system of overheat protector；
Described temperature rise protection system includes temperature collect module, detection module, control switch and control module,
Described set of cells and external equipment form charging and discharging circuit, and described control switch is electrically connected to described discharge and recharge and returns
Lu Zhong, described temperature collect module is for detecting the temperature in described set of cells and producing corresponding battery temperature letter
Number, described detection module is for detecting the charging and discharging state of described set of cells and exporting the discharge and recharge signal of correspondence；
Described control module includes converting unit, recognition unit, comparing unit and processing unit, described conversion list
Unit is for receiving and be converted to by described battery temperature signal the battery temperature value of correspondence, and described comparing unit is used
Whether the battery temperature value in detection present battery group exceedes the temperature protection value of set of cells current state, institute
State recognition unit for responding the charging and discharging state that described discharge and recharge signal identification set of cells is current, described process
Unit for controlling institute when the battery temperature value in set of cells exceedes the temperature protection value of set of cells current state
State control and switch off the charging and discharging circuit between described set of cells and described external equipment.
2. battery bag as claimed in claim 1, it is characterised in that described temperature collect module includes at least
In being arranged at described set of cells central area between adjacent two batteries and be arranged at described battery surface and lean on
Two groups of temperature collect modules of nearly described control module side.
3. battery bag as claimed in claim 2, it is characterised in that described often group temperature collect module includes
Temperature detection resistance and the first divider resistance, described temperature sense resistance connects with described first divider resistance,
And both common ports electrically connect with described control module, the other end ground connection of described temperature sense resistance, institute
The other end stating the first divider resistance is connected with power access end.
4. battery bag as claimed in claim 3, it is characterised in that described often group temperature collect module includes
Current-limiting resistance, described temperature sense resistance passes through described current-limiting resistance with the common port of described first divider resistance
Electrically connect with described control module.
5. battery bag as claimed in claim 3, it is characterised in that described temperature collect module also includes filter
Ripple electric capacity, one end of described filter capacitor and described temperature sense resistance are public with described first divider resistance
End connects, other end ground connection.
6. battery bag as claimed in claim 1, it is characterised in that described detection module include the first port,
Second port and the 3rd port, described first port electrically connects with described external equipment, described second port
Being electrically connected between described set of cells and described control switch, described 3rd port is electrically connected with described control module
Connecing, described control switch is electrically connected between described first port and described second port, and also simultaneously with institute
State control module electrical connection.
7. battery bag as claimed in claim 1, it is characterised in that described temperature rise protection system includes reporting to the police
Indicating module, described processing unit is used for exceeding the current shape of set of cells when the battery temperature value in described set of cells
Control described control during the temperature protection value of state and switch off putting between described set of cells and described external equipment
Electricity loop also produces alarm signal, and described warning indicating module is used for responding described alarm signal and sends alarm signal
Breath.
8. battery bag as claimed in claim 7, it is characterised in that described temperature rise protection system also includes multiple
Position module, described reseting module is used for responding user operation and produces reset signal, and described temperature protection value includes
When the first temperature protection value when described set of cells is in charged state and described set of cells are in discharge condition
The second temperature protection value, described processing unit responds described reset signal and closes described warning message again
Start described temperature rise protection system, and be used for continuing to exceed set of cells when the battery temperature value in described set of cells
During the temperature protection value of current state, continue to control described control and switch off described set of cells and described outside
Discharge loop between equipment, and be additionally operable to when the battery temperature value in described set of cells is less than described first temperature
Control described control switch when degree protection value or described second temperature protection value and re-close described set of cells and institute
State the charge circuit between external equipment.
9. battery bag as claimed in claim 8, it is characterised in that described reseting module includes reset switch
And second divider resistance, described reset switch is connected with described second divider resistance, and both common ports
Electrically connect with described control module, the other end ground connection of described reset switch, described second divider resistance another
One end is connected with power access end.
10. electric tool, it is characterised in that: include main body and for providing the electricity of electric power for described main body
Chi Bao, described battery bag is the battery bag in the claims 1-9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305746.8A CN106300479A (en) | 2015-06-04 | 2015-06-04 | Battery bag and the electric tool with this battery bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305746.8A CN106300479A (en) | 2015-06-04 | 2015-06-04 | Battery bag and the electric tool with this battery bag |
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| Publication Number | Publication Date |
|---|---|
| CN106300479A true CN106300479A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510305746.8A Pending CN106300479A (en) | 2015-06-04 | 2015-06-04 | Battery bag and the electric tool with this battery bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384453A (en) * | 2018-12-29 | 2020-07-07 | 奥动新能源汽车科技有限公司 | Emergency processing method and system for battery pack in energy storage system |
| CN114636949A (en) * | 2022-03-03 | 2022-06-17 | 杭州华塑科技股份有限公司 | Method and device for judging charge and discharge states of battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101499544A (en) * | 2008-01-28 | 2009-08-05 | 联想(北京)有限公司 | Battery apparatus, protection circuit, temperature monitoring method and temperature sensor laying method |
| CN103107520A (en) * | 2013-01-31 | 2013-05-15 | 深圳华粤宝电池有限公司 | System and method for lithium ion battery over-temperature protection |
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2015
- 2015-06-04 CN CN201510305746.8A patent/CN106300479A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499544A (en) * | 2008-01-28 | 2009-08-05 | 联想(北京)有限公司 | Battery apparatus, protection circuit, temperature monitoring method and temperature sensor laying method |
| CN103107520A (en) * | 2013-01-31 | 2013-05-15 | 深圳华粤宝电池有限公司 | System and method for lithium ion battery over-temperature protection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384453A (en) * | 2018-12-29 | 2020-07-07 | 奥动新能源汽车科技有限公司 | Emergency processing method and system for battery pack in energy storage system |
| CN111384453B (en) * | 2018-12-29 | 2022-06-21 | 奥动新能源汽车科技有限公司 | Emergency processing method and system for battery pack in energy storage system |
| CN114636949A (en) * | 2022-03-03 | 2022-06-17 | 杭州华塑科技股份有限公司 | Method and device for judging charge and discharge states of battery |
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