CN204118707U - For the temperature protection system of lithium ion battery - Google Patents
For the temperature protection system of lithium ion battery Download PDFInfo
- Publication number
- CN204118707U CN204118707U CN201420377842.4U CN201420377842U CN204118707U CN 204118707 U CN204118707 U CN 204118707U CN 201420377842 U CN201420377842 U CN 201420377842U CN 204118707 U CN204118707 U CN 204118707U
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- CN
- China
- Prior art keywords
- battery
- management system
- output
- temperature
- module
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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.)
- Expired - Lifetime
Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of temperature protection system for lithium ion battery, it comprises battery, battery charging module and battery output module, also comprise battery management system, battery described in battery management system control connection, battery output module and battery charging module; Described battery management system comprises multiple output and input, and the output of described battery management system is connected to the input of battery output module, and the input of described battery management system connects the output of described battery charging module; Described battery is provided with the temperature and resistance for detecting battery temperature, the output of temperature and resistance is connected to the input of battery management system; Also comprise micro-control unit, micro-control unit and described battery charging module and battery output module are interconnected.
Description
Technical field
The utility model relates to battery protection system, is applied particularly to the charge and discharge protecting of lithium ion battery.
Background technology
The use of Li-Ion rechargeable battery is very general; its application is comparatively extensive; we only have super-charge super-discharge function when finding common lithium ion cell charging when car emergency starts the use of power supply; there are some also with short-circuit protection function; it can not monitor the temperature of battery and prevent from further overcharging and cause cells burst or blast in charging process, can not monitor the superheating phenomenon of lithium ion battery discharge and recharge in hot environment simultaneously.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, provides the temperature protection system that is used in lithium ion battery, which obviates battery and in charging and discharging process, occurs high temperature and occur to burn or the danger of blast.
The utility model solves the technical scheme that its technical problem adopts: for the temperature protection system of lithium ion battery, comprise battery, battery charging module and battery output module, also comprise battery management system, battery described in battery management system control connection, battery output module and battery charging module;
Described battery management system comprises multiple output and input, and the output of described battery management system is connected to the input of battery output module, and the input of described battery management system connects the output of described battery charging module; Described battery is provided with the temperature and resistance for detecting battery temperature, the output of temperature and resistance is connected to the input of battery management system; Also comprise micro-control unit, micro-control unit and described battery charging module and battery output module are interconnected.
As a kind of preferred implementation of the present utility model, the above-mentioned temperature protection system for lithium ion battery also comprises balancing circuitry, and described balancing circuitry comprises positive pole tie point and negative pole tie point, is respectively used to the positive pole and the negative pole that connect battery; Balance metal-oxide-semiconductor and equalizing resistance is also provided with between described positive pole tie point and negative pole tie point.
As a kind of preferred implementation of the present utility model, above-mentioned battery is lithium ion battery, and described battery charging module is 5V/12V charging module, and described battery output module is 5V output module.
The beneficial effects of the utility model:
The utility model is used for the temperature protection system of lithium ion battery, and it detects battery key area temperature by temperature and resistance, cuts off main circuit current reach protected effect by the control of MCU.Temperature control principle detects battery temperature in real time by temperature and resistance temperature signal is converted to the signal of telecommunication delivers to BMS module, and when temperature exceedes set point, BMS module can disconnect battery power supply system and realize protection; In addition, the invention also discloses one preferred embodiment, in which, also comprise balancing circuitry, after adding this balancing circuitry, when each economize on electricity core voltage that BMS collects all does not exceed balanced threshold, balanced terminals current potential corresponding for the battery core exceeding equilibrium threshold voltage can be raised by BMS, and driven equilibrium metal-oxide-semiconductor is opened, and makes them discharge by equalizing resistance, until when battery core voltage all exceedes balanced threshold lower than balanced threshold or all battery core voltage, balance is closed; Otherwise be held open state.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model; Wherein BMS is the abbreviation of battery management system; MCU is the abbreviation of micro-control unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model embodiment is described:
Fig. 1 shows embodiment of the present utility model, as shown in the figure, the utility model is used for the temperature protection system of lithium ion battery, comprise battery, battery charging module and battery output module, also comprise battery management system, battery described in battery management system control connection, battery output module and battery charging module;
Described battery management system comprises multiple output and input, and the output of described battery management system is connected to the input of battery output module, and the input of described battery management system connects the output of described battery charging module; Described battery is provided with the temperature and resistance for detecting battery temperature, the output of temperature and resistance is connected to the input of battery management system; Also comprise micro-control unit, micro-control unit and described battery charging module and battery output module are interconnected.
Preferably, also comprise balancing circuitry, described balancing circuitry comprises positive pole tie point and negative pole tie point, is respectively used to the positive pole and the negative pole that connect battery; Balance metal-oxide-semiconductor and equalizing resistance is also provided with between described positive pole tie point and negative pole tie point.
Preferably, above-mentioned battery is lithium ion battery, and described battery charging module is 5V/12V charging module, and described battery output module is 5V output module.
By reference to the accompanying drawings the utility model preferred implementation is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.
Claims (3)
1., for the temperature protection system of lithium ion battery, comprise battery, battery charging module and battery output module, it is characterized in that: also comprise battery management system, battery described in battery management system control connection, battery output module and battery charging module;
Described battery management system comprises multiple output and input, and the output of described battery management system is connected to the input of battery output module, and the input of described battery management system connects the output of described battery charging module; Described battery is provided with the temperature and resistance for detecting battery temperature, the output of temperature and resistance is connected to the input of battery management system; Also comprise micro-control unit, micro-control unit and described battery charging module and battery output module are interconnected.
2. as claimed in claim 1 for the temperature protection system of lithium ion battery, it is characterized in that: also comprise balancing circuitry, described balancing circuitry comprises positive pole tie point and negative pole tie point, is respectively used to the positive pole and the negative pole that connect battery; Balance metal-oxide-semiconductor and equalizing resistance is also provided with between described positive pole tie point and negative pole tie point.
3., as claimed in claim 1 or 2 for the temperature protection system of lithium ion battery, it is characterized in that: described battery is lithium ion battery, described battery charging module is 5V/12V charging module, and described battery output module is 5V output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377842.4U CN204118707U (en) | 2014-07-05 | 2014-07-05 | For the temperature protection system of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420377842.4U CN204118707U (en) | 2014-07-05 | 2014-07-05 | For the temperature protection system of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204118707U true CN204118707U (en) | 2015-01-21 |
Family
ID=52335987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420377842.4U Expired - Lifetime CN204118707U (en) | 2014-07-05 | 2014-07-05 | For the temperature protection system of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204118707U (en) |
-
2014
- 2014-07-05 CN CN201420377842.4U patent/CN204118707U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |
|
| CX01 | Expiry of patent term |