CN205141748U - Novel lithium cell group and electric motor car - Google Patents
Novel lithium cell group and electric motor car Download PDFInfo
- Publication number
- CN205141748U CN205141748U CN201520928085.XU CN201520928085U CN205141748U CN 205141748 U CN205141748 U CN 205141748U CN 201520928085 U CN201520928085 U CN 201520928085U CN 205141748 U CN205141748 U CN 205141748U
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- battery
- relay
- battery modules
- battery module
- controller
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Abstract
The utility model discloses a novel lithium cell group and electric motor car. Lithium cell group is including the group battery shell, be equipped with the parallelly connected battery module of controller and a plurality of in the group battery shell, be equipped with positive terminal and negative terminal on the group battery shell, positive terminal is connected with the anodal electricity of battery module, negative terminal is connected with the negative electricity of battery module, the battery module includes the battery module that charging and discharging circuit and a plurality of are established ties, charging and discharging circuit, a plurality of battery module establishes ties, battery module includes the battery cell that a plurality of is established ties, the last voltage testing who is used for detecting interior every the battery cell voltage of battery module that is equipped with of battery module, the controller is connected with voltage testing and charging and discharging circuit electricity respectively. The electric motor car includes foretell lithium cell group. The utility model discloses make lithium cell group realize the modularization, the commonality is not strong, is convenient for maintain, is fit for batch production, has reduced manufacturing cost.
Description
Technical field
The utility model relates to battery technology field, particularly relates to a kind of novel lithium battery group and electric motor car.
Background technology
At present, lithium battery group used for electric vehicle in configuration aspects owing to there is no the standard of unification of the motherland, especially realizing in modularization, more ununified suggestion, the market mainstream customizes very serious, this phenomenon causes cell production companies unusual misery in Application and Development process, all difficulties such as construction cycle length, unstable properties, mass production equipment disunity, the unified technological standards of production nothing, material is numerous and diverse, production cost is high, long-term with this, sound development and the marketization application of whole industry cannot be guaranteed.
Summary of the invention
The purpose of this utility model overcomes existing lithium battery group not have modularization, safeguard inconvenience, the technical problem that batch production cost is higher, provide a kind of novel lithium battery group and electric motor car, it makes lithium battery group achieve modularization, and versatility is not strong, is convenient to safeguard, be applicable to batch production, reduce production cost.
In order to solve the problem, the utility model is achieved by the following technical solutions:
A kind of novel lithium battery group of the present utility model, comprise battery-pack exterior casing, the battery modules of controller and several parallel connections is provided with in described battery-pack exterior casing, described battery-pack exterior casing is provided with positive terminal and negative terminal, described positive terminal is electrically connected with the positive pole of battery modules, described negative terminal is connected with the negative electricity of battery modules, described battery modules comprises the battery module of charge-discharge circuit and several series connection, described charge-discharge circuit, several battery modules are connected, described battery module comprises the cell of several series connection, described battery module is provided with the voltage detection module for detecting each monomer battery voltage in battery module, described controller is electrically connected with voltage detection module and charge-discharge circuit respectively.
In the technical program, battery module comprises the cells of 7 or 13 series connection, and battery-pack exterior casing adopts moulds shell or aluminium box and other corresponding material.Voltage detection module detects the voltage of each cell in battery module, and the magnitude of voltage of cell and the magnitude of voltage of battery module are sent to controller.
In charging process, if the voltage of the cell in certain battery module is greater than default higher limit, the charge-discharge circuit that then controller controls in the battery modules at this battery module place stops charging, and other battery modules is charging as usual, can ensure that lithium battery group is fully charged; In discharge process, if the voltage of the cell in certain battery module is less than default lower limit, the charge-discharge circuit that then controller controls in the battery modules at this battery module place stops electric discharge, and other battery modules is electric discharge as usual, can extend distance travelled.
If certain battery module has damaged, only need this battery module to take out, changed a new battery module and just can ensure that lithium battery group can normally work.When lithium battery group is damaged, wherein intact battery module can take out recycling.
As preferably, described charge-discharge circuit comprises preliminary filling relay, preliminary filling resistance and electric discharge relay, the normally opened contact switch of described electric discharge relay, the series connection of several battery modules, the series circuit of the normally opened contact switch of described preliminary filling relay and preliminary filling resistance composition and the normally opened contact switch in parallel of electric discharge relay, the coil two ends of described electric discharge relay are electrically connected with controller, and the coil two ends of described preliminary filling relay are electrically connected with controller.
When charging, the normally opened contact switch that controller controls preliminary filling relay closes, and the normally opened contact switch of electric discharge relay disconnects; When discharging, the normally opened contact switch that controller controls preliminary filling relay disconnects, and the normally opened contact switch of electric discharge relay closes.When having the voltage difference between two battery modules to be greater than the threshold value of setting in monitoring control devices to lithium battery group, the preliminary filling relay normally open contact switch that controller controls in these two battery modules closes, these two battery modules series connection conductings, the battery modules that voltage is high is charged to the battery modules that voltage is low, owing to there being preliminary filling resistance, electric current between two battery modules is less, battery can not be damaged, when being less than set point Deng the voltage difference between two battery modules, the normally opened contact switch that controller controls preliminary filling relay disconnects.Thus avoid the appearance of following situation: in an assembling process or after sale in process, the voltage of the battery modules in lithium battery group is inconsistent, voltage difference between battery modules may exceed certain threshold value, directly by battery modules in parallel, high-tension battery modules can form transient large current discharge to the battery modules of low-voltage, damages battery or initiation potential.
As preferably, total positive relay and total negative relay is also provided with in described battery-pack exterior casing, the normally opened contact switch series of described total positive relay is connected between positive terminal and battery modules positive pole, the normally opened contact switch series of described total negative relay is connected between negative terminal and battery modules negative pole, the coil two ends of described total positive relay are electrically connected with controller, and the coil two ends of described total negative relay are electrically connected with controller.Total positive relay, total negative relay are for controlling the input and output of lithium battery group.
As preferably, total fuse is also provided with in described battery-pack exterior casing, described battery modules also comprises a point fuse, and described total fuse is serially connected with between positive terminal and the positive pole of battery modules, and described point of fuse, charge-discharge circuit, several battery modules are connected.
As preferably, total current transducer is also provided with in described battery-pack exterior casing, described battery modules also comprises a point current sensor, described total current transducer is serially connected with between positive terminal and the positive pole of battery modules, and described point of current sensor, charge-discharge circuit, several battery modules are connected.Total current transducer detects total current, and point current sensor detects the electric current of battery modules, and detection data are sent to controller by total current transducer and a point current sensor.When controller detects that the current differential of two battery modules is greater than the threshold value of setting, controller is sent by alarm module and reports to the police or disconnect corresponding battery modules, make car load realize limit Power operation, vehicle can not be caused directly to be stopped on road in generic failure situation.
A kind of electric motor car of the present utility model, comprises above-mentioned a kind of novel lithium battery group.
The beneficial effects of the utility model are: (1) makes lithium battery group achieve modularization, and versatility is not strong, are convenient to safeguard, are applicable to batch production, reduce production cost.(2) each battery module is monitored, the safety of the whole lithium battery group of available protecting.
Accompanying drawing explanation
Fig. 1 is that a kind of circuit theory of the present utility model connects block diagram;
Fig. 2 is the connection block diagram of controller and other electronic device.
In figure: 1, controller, 2, positive terminal, 3, negative terminal, 4, charge-discharge circuit, 5, battery module, 6, preliminary filling relay, 7, preliminary filling resistance, 8, electric discharge relay, 9, total positive relay, 10, always negative relay, 11, always fuse, 12, fuse is divided, 13, total current transducer, 14, point current sensor, 15, wireless communication module, 16, alarm module, 17, temperature sensor, 18, humidity sensor, 19, memory cell, 20, voltage detection module.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of novel lithium battery group of the present embodiment, as Fig. 1, shown in Fig. 2, comprise battery-pack exterior casing, the battery modules of controller 1 and several parallel connections is provided with in battery-pack exterior casing, battery-pack exterior casing is provided with positive terminal 2 and negative terminal 3, positive terminal 2 is electrically connected with the positive pole of battery modules, negative terminal 3 is connected with the negative electricity of battery modules, battery modules comprises charge-discharge circuit 4, divide current sensor 14, divide the battery module 5 of fuse 12 and several series connection, charge-discharge circuit 4 comprises preliminary filling relay 6, preliminary filling resistance 7 and electric discharge relay 8, the normally opened contact switch of electric discharge relay 8, divide current sensor 14, divide fuse 12, the battery module 5 of several series connection is connected, the normally opened contact switch in parallel of the series circuit that the normally opened contact switch of preliminary filling relay 6 and preliminary filling resistance 7 form and electric discharge relay 8, battery module 5 comprises the cell of several series connection, battery module 5 is provided with the voltage detection module 20 for detecting each monomer battery voltage in battery module 5, controller 1 respectively with voltage detection module 20, divide current sensor 14, the coil two ends of preliminary filling relay 6 and the coil two ends electrical connection of electric discharge relay 8.
Total positive relay 9, total negative relay 10, total fuse 11, total current transducer 13 is also provided with in battery-pack exterior casing, the normally opened contact switch of total positive relay 9, total fuse 11, total current transducer 13 are serially connected with between positive terminal 2 and battery modules positive pole, the normally opened contact switch series of total negative relay 10 is connected between negative terminal 3 and battery modules negative pole, and controller 1 is electrically connected with the coil two ends of total current transducer 13, total positive relay 9 and the coil two ends of total negative relay 10 respectively.
Battery module comprises the cells of 7 or 13 series connection, and battery-pack exterior casing adopts moulds shell or aluminium box and other corresponding material.Total positive relay, total negative relay are for controlling the input and output of lithium battery group.Voltage detection module detects the voltage of each cell in battery module, and the magnitude of voltage of cell and the magnitude of voltage of battery module are sent to controller.Total current transducer detects total current, and point current sensor detects the electric current of battery modules, and detection data are sent to controller by total current transducer and a point current sensor.
When charging, the normally opened contact switch that controller controls preliminary filling relay closes, and the normally opened contact switch of electric discharge relay disconnects; When discharging, the normally opened contact switch that controller controls preliminary filling relay disconnects, and the normally opened contact switch of electric discharge relay closes.In charging process, if the voltage of the cell in certain battery module is greater than default higher limit, then the preliminary filling relay that controller controls in the battery modules at this battery module place disconnects, and stops charging, other battery modules is charging as usual, can ensure that lithium battery group is fully charged; In discharge process, if the voltage of the cell in certain battery module is less than default lower limit, then the electric discharge relay that controller controls in the battery modules at this battery module place disconnects, and stops electric discharge, other battery modules is electric discharge as usual, can extend distance travelled.
When having the voltage difference between two battery modules to be greater than the threshold value of setting in monitoring control devices to lithium battery group, the preliminary filling relay normally open contact switch that controller controls in these two battery modules closes, these two battery modules series connection conductings, the battery modules that voltage is high is charged to the battery modules that voltage is low, owing to there being preliminary filling resistance, electric current between two battery modules is less, battery can not be damaged, when being less than set point Deng the voltage difference between two battery modules, the normally opened contact switch that controller controls preliminary filling relay disconnects.Thus avoid the appearance of following situation: in an assembling process or after sale in process, the voltage of the battery modules in lithium battery group is inconsistent, voltage difference between battery modules may exceed certain threshold value, directly by battery modules in parallel, high-tension battery modules can form transient large current discharge to the battery modules of low-voltage, damages battery or initiation potential.
When controller detects that the current differential of two battery modules is greater than the threshold value of setting, controller disconnects corresponding battery modules, makes car load realize limit Power operation, vehicle can not be caused directly to be stopped on road in generic failure situation.
If certain battery module has damaged, only need this battery module to take out, changed a new battery module and just can ensure that lithium battery group can normally work.When lithium battery group is damaged, wherein intact battery module can take out recycling.
Battery-pack exterior casing is also provided with wireless communication module 15, alarm module 16 and memory cell 19, humidity sensor 18 is also provided with in battery-pack exterior casing, battery module 5 is also provided with the temperature sensor 17 detecting battery module 5 temperature, controller 1 is electrically connected with wireless communication module 15, alarm module 16, memory cell 19, humidity sensor 18 and temperature sensor 17 respectively.
Temperature sensor detects the temperature of battery module, and sends it to controller, and humidity sensor detects the humidity of battery module, and sends it to controller.The lithium battery group state information that memory cell detects for storing each transducer.Controller communicates with the smart mobile phone of user by wireless communication module, also can communicate with high in the clouds, and lithium battery group data are sent to smart mobile phone or high in the clouds.When monitoring control devices occurs the fault such as electric voltage exception, current anomaly to lithium battery group, send warning by alarm module, send warning message by wireless communication module to the smart mobile phone of user or high in the clouds.
A kind of electric motor car of the present embodiment, comprises above-mentioned a kind of novel lithium battery group.
Claims (6)
1. a novel lithium battery group, it is characterized in that: comprise battery-pack exterior casing, the battery modules of controller (1) and several parallel connections is provided with in described battery-pack exterior casing, described battery-pack exterior casing is provided with positive terminal (2) and negative terminal (3), described positive terminal (2) is electrically connected with the positive pole of battery modules, described negative terminal (3) is connected with the negative electricity of battery modules, described battery modules comprises the battery module (5) of charge-discharge circuit (4) and several series connection, described charge-discharge circuit (4), several battery modules (5) are connected, described battery module (5) comprises the cell of several series connection, described battery module (5) is provided with the voltage detection module (20) for detecting each monomer battery voltage in battery module (5), described controller (1) is electrically connected with voltage detection module (20) and charge-discharge circuit (4) respectively.
2. a kind of novel lithium battery group according to claim 1, it is characterized in that: described charge-discharge circuit (4) comprises preliminary filling relay (6), preliminary filling resistance (7) and electric discharge relay (8), the normally opened contact switch of described electric discharge relay (8), several battery modules (5) are connected, the normally opened contact switch in parallel of the series circuit that the normally opened contact switch of described preliminary filling relay (6) and preliminary filling resistance (7) form and electric discharge relay (8), the coil two ends of described electric discharge relay (8) are electrically connected with controller (1), the coil two ends of described preliminary filling relay (6) are electrically connected with controller (1).
3. a kind of novel lithium battery group according to claim 1, it is characterized in that: in described battery-pack exterior casing, be also provided with total positive relay (9) and total negative relay (10), the normally opened contact switch series of described total positive relay (9) is connected between positive terminal (2) and battery modules positive pole, the normally opened contact switch series of described total negative relay (10) is connected between negative terminal (3) and battery modules negative pole, the coil two ends of described total positive relay (9) are electrically connected with controller (1), the coil two ends of described total negative relay (10) are electrically connected with controller (1).
4. a kind of novel lithium battery group according to claim 1 or 2 or 3, it is characterized in that: in described battery-pack exterior casing, be also provided with total fuse (11), described battery modules also comprises a point fuse (12), described total fuse (11) is serially connected with between positive terminal (2) and the positive pole of battery modules, and described point of fuse (12), charge-discharge circuit (4), several battery modules (5) are connected.
5. a kind of novel lithium battery group according to claim 1 or 2 or 3, it is characterized in that: in described battery-pack exterior casing, be also provided with total current transducer (13), described battery modules also comprises a point current sensor (14), described total current transducer (13) is serially connected with between positive terminal and the positive pole of battery modules, and described point of current sensor (14), charge-discharge circuit (4), several battery modules (5) are connected.
6. an electric motor car, is characterized in that: comprise a kind of novel lithium battery group in claim 1-5 described in arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928085.XU CN205141748U (en) | 2015-11-20 | 2015-11-20 | Novel lithium cell group and electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928085.XU CN205141748U (en) | 2015-11-20 | 2015-11-20 | Novel lithium cell group and electric motor car |
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| Publication Number | Publication Date |
|---|---|
| CN205141748U true CN205141748U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520928085.XU Expired - Fee Related CN205141748U (en) | 2015-11-20 | 2015-11-20 | Novel lithium cell group and electric motor car |
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| CN (1) | CN205141748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410081A (en) * | 2016-10-31 | 2017-02-15 | 深圳市盈动力科技有限公司 | Battery pack |
-
2015
- 2015-11-20 CN CN201520928085.XU patent/CN205141748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410081A (en) * | 2016-10-31 | 2017-02-15 | 深圳市盈动力科技有限公司 | Battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190219 Address after: 313100 No. 358 Pheasant Island Avenue, Paixi Street, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Xinchuang Energy Co., Ltd. Address before: 313100 No. 12 Pheasant Island Avenue, Pheasant Town Xinxing Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Chaowei Chuangyuan Industrial Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20191120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |