CN203617693U - Battery protection system - Google Patents
Battery protection system Download PDFInfo
- Publication number
- CN203617693U CN203617693U CN201320617528.4U CN201320617528U CN203617693U CN 203617693 U CN203617693 U CN 203617693U CN 201320617528 U CN201320617528 U CN 201320617528U CN 203617693 U CN203617693 U CN 203617693U
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- Prior art keywords
- charging
- negative pole
- battery
- battery protecting
- voltage
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- 239000011449 brick Substances 0.000 claims description 51
- 238000001514 detection method Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a battery protection system, which is composed of a charging protection circuit, the charging protection circuit comprises a battery protection board, a battery pack and an auxiliary circuit, the battery pack comprises an anode B plus and a cathode B minus, and the two ports of the battery protection board are respectively electrically connected with the anode B plus and the cathode B minus of the battery pack; the battery protection system comprises a charging cathode CH minus, the cathode B minus of the battery pack communicates with the charging cathode CH minus, and the auxiliary circuit is connected between the B minus and the charging cathode CH minus; and the battery protection board and the auxiliary circuit can carry out overcharging protection, charging overcurrent protection and charging short circuit protection on the battery pack. Because the battery protection system is composed of the charging protection circuit, i.e., the battery protection system does not have a charging protection function, the battery protection system does not suddenly cut off power like the prior art during charging, and consequently, the power of an electric balancing car can be prevented from being suddenly cut off, so that the occurrence of danger can be prevented.
Description
Technical field
The utility model relates to walking-replacing tool field, relates in particular to the battery protecting apparatus of electric motor car.
Background technology
In short distance traffic and walking-replacing tool, the place that dolly can not go, two wheeler, because volume is smaller, requires width of roadway not high.Therefore the advantage such as adaptable, course-stability, fail safe height obtains using comparatively widely.Especially larger at golf course, megastore, airport, place, railway station, walking easily makes people's fatigue, adopts automobile to be unfavorable for entering place, therefore, usually uses electric motor car, and especially electric two-wheel vehicle, rides instead of walk.And for electric motor car, battery is one of its most key parts.
Battery in charge and discharge process frequently, there will be overcharge, the situation of overcurrent and short circuit, if the generation of these situations can not get stopping timely, can greatly affect the useful life of battery, even there is the accidents such as on fire, blast.Therefore, be necessary to provide a kind of battery protecting apparatus, to avoid these phenomenons of battery.
Utility model content
In view of the above, be necessary to provide a kind of battery protecting apparatus that can avoid over-charging of battery, charging overcurrent and charging short circuit phenomenon.
A kind of battery protecting apparatus of electric motor car, it is made up of charge protection loop, described charge protection loop comprises battery protecting plate, power brick and auxiliary circuit, described power brick comprises anodal B+ and negative pole B-, and two ports of described battery protecting plate are electrically connected with anodal B+ and the negative pole B-of power brick respectively; Described battery protecting apparatus comprises charging negative pole CH-, and the negative pole B-of described power brick is communicated with charging negative pole CH-, and described auxiliary circuit is connected between described B-and described charging negative pole CH-.Described battery protecting plate and described auxiliary circuit to described power brick charge over-charge protective, charging overcurrent protection and charging short-circuit protection.
Further; described battery protecting apparatus also comprises switch, thereby circuit and described battery protecting plate that described switch connects between power brick negative pole B-and charging negative pole CH-charge or stop charging with charging negative pole CH-to be communicated with or to disconnect described power brick negative pole B-.
Further, described switch is metal-oxide-semiconductor.
Further; described charge protection loop comprises over-charging of battery protection module; described over-charging of battery protection module comprises the detection voltage that overcharges; described over-charging of battery protection module detects voltage ratio for the voltage of Gather and input and by it with overcharging; the detection voltage if the voltage of input overcharges described in being greater than, switch disconnects being connected of described power brick negative pole B-and the negative pole CH-that charges described in the control of described over-charging of battery protection module.
Further, described over-charging of battery protection module is arranged in described battery protecting plate.
Further, described charge protection loop comprises charging overcurrent protection module, described charging overcurrent protection module comprises that charge over-current detects voltage, described battery protection loop also comprises the resistance being connected between described negative pole B-and described charging negative pole CH-, charging overcurrent protection module is for gathering the voltage at resistance two ends and itself and charge over-current being detected to voltage ratio, if being greater than described charge over-current, the voltage at resistance two ends detects voltage, auxiliary circuit outputs signal to battery protecting plate, described in described battery protecting plate control, switch disconnects described power brick negative pole B-and charging being connected of negative pole CH-.
Further, described charge protection loop comprises charging short circuit protection module, described charging short circuit protection module comprises that short-circuit protection detects voltage, charging short circuit protection module is for gathering the voltage at resistance two ends and itself and short-circuit protection being detected to voltage ratio, if being greater than described short-circuit protection, the voltage at resistance two ends detects voltage, auxiliary circuit outputs signal to battery protecting plate, and switch disconnects being connected of described power brick negative pole B-and charging negative pole CH-described in described battery protecting plate control; Described short-circuit protection detects voltage and is greater than described charge over-current detection voltage.
Further; described charge protection loop also comprises that the battery gentle battery charging of charging owes temperature protection module to avoid overhigh temperature during charging same or too low; time too high or too low for temperature in when charging, the gentle battery charging of charging of described battery is owed warm protection module and is outputed signal to described battery protecting plate and disconnect being connected of described negative pole B-and described charging negative pole CH-to control metal-oxide-semiconductor and disconnect.
Further; described temperature protection module comprises comparator supply power voltage, thermistor (not shown) and two comparators, and described two comparators are for gathering the voltage at described thermistor two ends and judging that whether the voltage collecting is higher or lower than described comparator supply power voltage.
Further, described battery protecting plate comprises that the battery information output port that is connected to lower floor's mainboard is in order to export the state of power brick, state while comprising normal condition, charged state, discharge condition, the charger access of power brick.
Further; described battery protecting apparatus also comprises the anodal P+ of load and load negative pole P-; the anodal B+ of described power brick is communicated with the anodal P+ of described load, and power brick negative pole B-is directly communicated with described load negative pole P-, between the anodal P+ of the anodal B+ of described power brick and described load, is in series with fuse.
With respect to prior art; battery protecting apparatus of the present utility model is made up of charge protection loop, there is no discharge prevention function, like this when electric discharge battery protecting apparatus can be as prior art unexpected cutting off the electricity supply; therefore can prevent the unexpected power-off of electrodynamic balance car, avoid dangerous generation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model battery protecting apparatus.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
The utility model discloses a kind of battery protecting apparatus.In this embodiment; described battery protecting apparatus is made up of charge protection loop; refer to Fig. 1; described charge protection loop comprises battery protecting plate 11, power brick 12 and auxiliary circuit 13; described power brick 12 comprises anodal B+ and negative pole B-, and two ports of described battery protecting plate 11 are electrically connected with anodal B+ and the negative pole B-of power brick 12 respectively.Described battery protecting apparatus comprises charging negative pole CH-, and the negative pole B-of described power brick 12 is communicated with charging negative pole CH-, and described auxiliary circuit 13 is connected between described B-and described charging negative pole CH-.Described battery protecting plate 11 and described auxiliary circuit 13 to described power brick 12 charge over-charge protective, charging overcurrent protection and charging short-circuit protection.
Battery protecting apparatus of the present utility model is made up of charge protection loop; there is no discharge prevention function; like this when electric discharge battery protecting apparatus can be as prior art unexpected cutting off the electricity supply, therefore can prevent the unexpected power-off of electrodynamic balance car, avoid dangerous generation.
Further; described battery protecting apparatus also comprises switch 14, thereby circuit and described battery protecting plate 11 that described switch 14 connects between power brick negative pole B-and charging negative pole CH-charge or stop charging with charging negative pole CH-to be communicated with or to disconnect described power brick negative pole B-.
Further, described switch 14 is metal-oxide-semiconductor (field effect transistor).
Further; described charge protection loop comprises over-charging of battery protection module; described over-charging of battery protection module comprises the detection voltage that overcharges; described over-charging of battery protection module detects voltage ratio for the voltage of Gather and input and by it with overcharging; if overcharge detection voltage described in the voltage of input is greater than; described in the control of described over-charging of battery protection module, switch 14 disconnects being connected of described power brick negative pole B-and charging negative pole CH-, thereby realizes over-charging of battery protection, avoids over-charging of battery.In this specific embodiment, described in overcharge detect voltage be 4.25V ± 30mV.The voltage of described input is the anodal B+ of power brick 12 and the voltage at negative pole B-two ends.
Further, described over-charging of battery protection module is arranged in described battery protecting plate 11.In the time that described switch is metal-oxide-semiconductor, the pin that described battery protecting plate 11 can be controlled metal-oxide-semiconductor transfers low level to by high level, thereby disconnects described power brick negative pole B-and charging being connected of negative pole CH-.
Further, described charge protection loop comprises charging overcurrent protection module, described charging overcurrent protection module comprises that charge over-current detects voltage, described battery protection loop also comprises the resistance 16 being connected between described negative pole B-and described charging negative pole CH-, charging overcurrent protection module is for gathering the voltage at resistance 16 two ends and itself and charge over-current being detected to voltage ratio, if being greater than described charge over-current, the voltage at resistance 16 two ends detects voltage, auxiliary circuit 13 outputs signal to battery protecting plate 11, described battery protecting plate 11 is controlled described switch 14 and is disconnected described power brick negative pole B-and charging being connected of negative pole CH-, thereby realize charging overcurrent protection, avoid battery overcurrent.Described charge over-current detects the size of voltage to be determined according to selected baffle IC model, the voltage at charging overcurrent size adjustable resistor 16 two ends, the i.e. size of regulating resistance 16.
Further, described charge protection loop comprises charging short circuit protection module, described charging short circuit protection module comprises that short-circuit protection detects voltage, charging short circuit protection module is for gathering the voltage at resistance 16 two ends and itself and short-circuit protection being detected to voltage ratio, if being greater than described short-circuit protection, the voltage at resistance 16 two ends detects voltage, auxiliary circuit 13 outputs signal to battery protecting plate 11, described battery protecting plate 11 is controlled described switch 14 and is disconnected described power brick negative pole B-and charging being connected of negative pole CH-, thereby realize charging short-circuit protection, avoid battery to charge under short-circuit conditions.Described short-circuit protection detects voltage and is greater than described charge over-current detection voltage.
Further; described charge protection loop also comprises charged battery to owe warm protection module too high or too low for temperature when avoiding charging for the charging of gentle battery; at overhigh temperature during charging same or when too low; the gentle battery charging of charging of described battery is owed warm protection module and is outputed signal to described battery protecting plate 11 and disconnect being connected of described negative pole B-and described charging negative pole CH-to control metal-oxide-semiconductor and disconnect; thereby disconnection charge circuit, avoids charging to power brick 12 time too high or too low for temperature.In this specific embodiment, described temperature range is between 0 °-50 °, temperature higher than 50 ° or lower than 0 ° stop charging.
Further; described temperature protection module comprises comparator supply power voltage, thermistor (not shown) and two comparators, and described two comparators are for gathering the voltage at described thermistor two ends and judging that whether the voltage collecting is higher or lower than described comparator supply power voltage.Be appreciated that corresponding described temperature is a scope, described comparator supply power voltage is also a scope.
Further; described battery protecting plate 11 comprises that the battery information output port 111 that is connected to lower floor's mainboard is in order to export the state of power brick 12; normal condition, charged state, discharge condition, the charger that comprises power brick 12 accesses described battery protecting plate 11 and comprises that the battery information output port 111 that is connected to lower floor's mainboard is with the state of output power brick 12, state etc. while comprising normal condition, charged state, discharge condition, the charger access of power brick 12.The state of described power brick 12 is transferred to lower floor's mainboard by described battery information output port 111, and mainboard tells battery status to user, for example, inform user by the mode of LED lamp flicker.
Further; described battery protecting apparatus also comprises the anodal P+ of load and load negative pole P-; the anodal B+ of described power brick is communicated with the anodal P+ of described load; power brick negative pole B-is directly communicated with described load negative pole P-, between the anodal P+ of the anodal B+ of described power brick and described load, is in series with fuse 17.
Understandably, described battery protecting apparatus also comprise charging anodal (not shown) with realize power brick 12 is charged.
The utility model provides a kind of battery protecting apparatus that there is no discharge prevention, and it is more suitable in the protection of the battery of electric motor car, especially balance car.Meanwhile, this battery protecting apparatus can also be exported to user by information such as battery statuss so that user real-time the state of electrolytic cell, can take precautions against in advance various situations, even dangerous generation.In addition, described battery protecting apparatus can be avoided in battery charging process the generation due to the blast causing too high or too low for temperature, the situation such as on fire.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a battery protecting apparatus, it is characterized in that: it is made up of charge protection loop, described charge protection loop comprises battery protecting plate (11), power brick (12) and auxiliary circuit (13), described power brick (12) comprises anodal B+ and negative pole B-, and two ports of described battery protecting plate (11) are electrically connected with anodal B+ and the negative pole B-of power brick (12) respectively; Described battery protecting apparatus comprises charging negative pole CH-, and the negative pole B-of described power brick (12) is communicated with charging negative pole CH-, and described auxiliary circuit (13) is connected between described B-and described charging negative pole CH-.
2. battery protecting apparatus according to claim 1; it is characterized in that: described battery protecting apparatus also comprises switch (14), described switch (14) connects circuit between power brick negative pole B-and charging negative pole CH-and described battery protecting plate (11) thereby charges or stop charging with charging negative pole CH-to be communicated with or to disconnect described power brick negative pole B-.
3. battery protecting apparatus according to claim 2, is characterized in that: described switch (14) is metal-oxide-semiconductor.
4. battery protecting apparatus according to claim 2; it is characterized in that: described charge protection loop comprises over-charging of battery protection module; described over-charging of battery protection module comprises the detection voltage that overcharges; described over-charging of battery protection module detects voltage ratio for the voltage of Gather and input and by it with overcharging; the detection voltage if the voltage of input overcharges described in being greater than, switch (14) disconnects being connected of described power brick negative pole B-and the negative pole CH-that charges described in the control of described over-charging of battery protection module.
5. battery protecting apparatus according to claim 4, is characterized in that: described over-charging of battery protection module is arranged in described battery protecting plate (11).
6. battery protecting apparatus according to claim 4, it is characterized in that: described charge protection loop comprises charging overcurrent protection module, described charging overcurrent protection module comprises that charge over-current detects voltage, described battery protection loop also comprises the resistance (16) being connected between described negative pole B-and described charging negative pole CH-, charging overcurrent protection module is used for gathering the voltage at resistance (16) two ends and itself and charge over-current is detected to voltage ratio, if being greater than described charge over-current, the voltage at resistance (16) two ends detects voltage, auxiliary circuit (13) outputs signal to battery protecting plate (11), described battery protecting plate (11) is controlled described switch (14) and is disconnected described power brick negative pole B-and charging being connected of negative pole CH-.
7. battery protecting apparatus according to claim 6, it is characterized in that: described charge protection loop comprises charging short circuit protection module, described charging short circuit protection module comprises that short-circuit protection detects voltage, charging short circuit protection module is used for gathering the voltage at resistance (16) two ends and itself and short-circuit protection is detected to voltage ratio, if being greater than described short-circuit protection, the voltage at resistance (16) two ends detects voltage, auxiliary circuit (13) outputs signal to battery protecting plate (11), described battery protecting plate (11) is controlled described switch (14) and is disconnected described power brick negative pole B-and charging being connected of negative pole CH-, described short-circuit protection detects voltage and is greater than described charge over-current detection voltage.
8. according to the battery protecting apparatus described in any one in claim 1-7; it is characterized in that: described charge protection loop also comprises that the battery gentle battery charging of charging owes warm protection module to avoid overhigh temperature during charging same or too low; time too high or too low for temperature in when charging, the gentle battery charging of charging of described battery is owed warm protection module and is outputed signal to described battery protecting plate (11) and disconnect being connected of described negative pole B-and described charging negative pole CH-to control metal-oxide-semiconductor and disconnect.
9. battery protecting apparatus according to claim 1; it is characterized in that: described battery protecting plate (11) comprises that the battery information output port (111) that is connected to lower floor's mainboard is in order to export the state of power brick (12) state while comprising normal condition, charged state, discharge condition, the charger access of power brick (12).
10. battery protecting apparatus according to claim 1; it is characterized in that: described battery protecting apparatus also comprises the anodal P+ of load and load negative pole P-; the anodal B+ of described power brick is communicated with the anodal P+ of described load; power brick negative pole B-is directly communicated with described load negative pole P-, between the anodal P+ of the anodal B+ of described power brick and described load, is in series with fuse (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617528.4U CN203617693U (en) | 2013-10-08 | 2013-10-08 | Battery protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617528.4U CN203617693U (en) | 2013-10-08 | 2013-10-08 | Battery protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617693U true CN203617693U (en) | 2014-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617528.4U Expired - Lifetime CN203617693U (en) | 2013-10-08 | 2013-10-08 | Battery protection system |
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| Country | Link |
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| CN (1) | CN203617693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532103A (en) * | 2013-10-08 | 2014-01-22 | 东莞易步机器人有限公司 | Battery protection system |
-
2013
- 2013-10-08 CN CN201320617528.4U patent/CN203617693U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532103A (en) * | 2013-10-08 | 2014-01-22 | 东莞易步机器人有限公司 | Battery protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lithium-cell protector and its protection Effective date of registration: 20150610 Granted publication date: 20140528 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: DONGGUAN ROBSTEP ROBOT Co.,Ltd. Registration number: 2015990000461 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170424 Granted publication date: 20140528 Pledgee: China Co. truction Bank Corp Dongguan branch Pledgor: DONGGUAN ROBSTEP ROBOT Co.,Ltd. Registration number: 2015990000461 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190904 Address after: 518572 Longcheng Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Zhang Mingming Address before: 523808 Guangdong Province, Dongguan City Songshan National hi tech Industrial Development Zone Industrial Road No. 6 Songshan Lake Branch Industrial Park 2 3 floor Patentee before: DONGGUAN ROBSTEP ROBOT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |