CN204068215U - With the lithium battery of power-off protection - Google Patents
With the lithium battery of power-off protection Download PDFInfo
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- CN204068215U CN204068215U CN201420408035.4U CN201420408035U CN204068215U CN 204068215 U CN204068215 U CN 204068215U CN 201420408035 U CN201420408035 U CN 201420408035U CN 204068215 U CN204068215 U CN 204068215U
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- management system
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- battery management
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Abstract
The utility model provides a kind of lithium battery needing the band power-off protection increasing external cell, comprise battery pack, be connected to the battery management system at battery pack two ends by DC-DC power module, described battery management system is connected with electric discharge relay and charging circuit breaker; System switching and starting switch is in series with between described battery pack and DC-DC power module, described starting switch is non-self-lock-ing switch, described battery management system is also connected with low-voltage power-off relay, and the normally opened contact on described low-voltage power-off relay is in parallel with starting switch.The lithium battery of band power-off protection of the present utility model, when electric quantity of lithium battery is too low except disconnecting outside load, in order to prevent battery management system power consumption from causing lithium ion battery overdischarge, also can disconnect the power supply of battery management system self where necessary; Therefore lithium battery of the present utility model does not need to increase outside lead-acid battery and powers and can effectively prevent battery pack owing to causing self overdischarge for battery management system power consumption.
Description
Technical field
The utility model relates to a kind of lithium battery, especially a kind of lithium battery with power-off protection.
Background technology
The battery management system of present lithium battery is on the market a lot, but all could not solve the problem that battery management system self power consumption causes lithium battery overdischarge very well, when cell voltage is too low by turning off the load outside the switching device disconnection lithium batteries such as electric discharge relay, but self not power-off of battery management system, that is battery management system self appoints the electricity that so will consume lithium battery to carry out work.Current most solution is that lithium battery management system is powered and solved above problem by adding one piece of lead-acid battery outside battery management system.
But do not have the external power sources such as lead-acid battery on some devices, the power supply of battery management system can only be provided through step-down by lithium battery group itself.In this case, lithium battery is easy to overdischarge.
Utility model content
The utility model provides a kind of lithium battery needing the band power-off protection increasing external cell.
Realize the lithium battery of the band power-off protection of the utility model object, comprise battery pack, be connected to the battery management system at battery pack two ends by DC-DC power module, described battery management system is connected with electric discharge relay and charging circuit breaker; System switching and starting switch is in series with between described battery pack and DC-DC power module, described starting switch is non-self-lock-ing switch, described battery management system is also connected with low-voltage power-off relay, and the normally opened contact on described low-voltage power-off relay is in parallel with starting switch;
When battery management system starts, press system switching and starting switch, DC-DC power module is started working as the control circuit of battery management system provides stable power supply, and the normally opened contact of battery management system job control low-voltage power-off relay closes; At this moment unclamp starting switch, starting switch disconnects, and battery pack is that DC-DC power module is powered by the normally opened contact on system switching and low-voltage power-off relay, system worked well;
When the voltage of battery pack is lower than battery over-discharge voltage, battery management system makes normally opened contact disconnect by disconnecting low-voltage power-off relay, battery management system power-off.
Described battery management system is also connected with display screen, for showing the operating state of battery management system.
The beneficial effect of the lithium battery of band power-off protection of the present utility model is as follows:
The lithium battery of band power-off protection of the present utility model, when electric quantity of lithium battery is too low except disconnecting outside load, in order to prevent battery management system power consumption from causing lithium ion battery overdischarge, also can disconnect the power supply of battery management system self where necessary; Therefore lithium battery of the present utility model does not need to increase outside lead-acid battery and powers and can effectively prevent battery pack owing to causing self overdischarge for battery management system power consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lithium battery of band power-off protection of the present utility model.
Embodiment
As shown in Figure 1, the lithium battery of band power-off protection of the present utility model, comprises battery pack, is connected to the battery management system at battery pack two ends by DC-DC power module, and described battery management system is connected with electric discharge relay and charging circuit breaker; System switching K1 and starting switch K2 is in series with between described battery pack and DC-DC power module, described starting switch K2 is non-self-lock-ing switch, described battery management system is also connected with low-voltage power-off relay and display screen, and the normally opened contact K3 on described low-voltage power-off relay is in parallel with starting switch K2;
When battery management system starts, press system switching K1 and starting switch K2, DC-DC power module is started working as the control circuit of battery management system provides stable power supply, control display screen work after the control circuit of battery management system powers on, the normally opened contact K3 simultaneously controlling low-voltage power-off relay closes; At this moment unclamp starting switch K2, starting switch K2 disconnects, and battery pack is that DC-DC power module is powered by the normally opened contact K3 on system switching K1 and low-voltage power-off relay, system worked well;
When the voltage of battery pack is lower than battery over-discharge voltage, battery management system makes normally opened contact K3 disconnect by disconnecting low-voltage power-off relay, battery management system power-off.
When battery voltage so just can be prevented too low, battery management system continuation consuming cells group electricity causes battery pack overdischarge problem.
Embodiment recited above is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the utility model designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical solutions of the utility model and improvement, all should fall in protection range that claims of the present utility model determine.
Claims (2)
1. the lithium battery with power-off protection, is characterized in that: comprise battery pack, is connected to the battery management system at battery pack two ends by DC-DC power module, and described battery management system is connected with electric discharge relay and charging circuit breaker; System switching and starting switch is in series with between described battery pack and DC-DC power module, described starting switch is non-self-lock-ing switch, described battery management system is also connected with low-voltage power-off relay, and the normally opened contact on described low-voltage power-off relay is in parallel with starting switch;
When battery management system starts, press system switching and starting switch, DC-DC power module is started working as the control circuit of battery management system provides stable power supply, and the normally opened contact of battery management system job control low-voltage power-off relay closes; At this moment unclamp starting switch, starting switch disconnects, and battery pack is that DC-DC power module is powered by the normally opened contact on system switching and low-voltage power-off relay, system worked well;
When the voltage of battery pack is lower than battery over-discharge voltage, battery management system makes normally opened contact disconnect by disconnecting low-voltage power-off relay, battery management system power-off.
2. the lithium battery of band power-off protection according to claim 1, is characterized in that: described battery management system is also connected with display screen, for showing the operating state of battery management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408035.4U CN204068215U (en) | 2014-07-23 | 2014-07-23 | With the lithium battery of power-off protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408035.4U CN204068215U (en) | 2014-07-23 | 2014-07-23 | With the lithium battery of power-off protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068215U true CN204068215U (en) | 2014-12-31 |
Family
ID=52209662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420408035.4U Active CN204068215U (en) | 2014-07-23 | 2014-07-23 | With the lithium battery of power-off protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068215U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882936A (en) * | 2015-06-02 | 2015-09-02 | 李相哲 | Communication energy storage power supply system |
| CN107919705A (en) * | 2017-12-11 | 2018-04-17 | 辽宁厚能科技股份有限公司 | Battery pack prevents overdischarge circuit |
| CN107994669A (en) * | 2017-11-30 | 2018-05-04 | 中国电子科技集团公司第四十八研究所 | A kind of missile-borne microsatellite energy control system |
| CN109560585A (en) * | 2018-12-07 | 2019-04-02 | 珠海格力电器股份有限公司 | Circuit, energy storage device and control method are restarted in a kind of battery over-discharge |
| CN109586368A (en) * | 2018-12-07 | 2019-04-05 | 珠海格力电器股份有限公司 | Energy-storage system starter, starting method and energy-storage system |
| CN109617193A (en) * | 2019-01-25 | 2019-04-12 | 湖南星邦重工有限公司 | A kind of lithium battery management system and aerial work platform |
| CN109787311A (en) * | 2019-01-25 | 2019-05-21 | 湖南星邦重工有限公司 | A kind of aerial work platform lithium battery power supply Control protection system |
| CN109842163A (en) * | 2017-11-24 | 2019-06-04 | 中惠创智无线供电技术有限公司 | A kind of wireless charging system can autotomy electric protection circuit and method |
| CN110474396A (en) * | 2019-08-23 | 2019-11-19 | 湖南星邦重工有限公司 | A kind of scissor-type high-altitude operation vehicle and its battery Control protection system |
-
2014
- 2014-07-23 CN CN201420408035.4U patent/CN204068215U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882936A (en) * | 2015-06-02 | 2015-09-02 | 李相哲 | Communication energy storage power supply system |
| CN109842163A (en) * | 2017-11-24 | 2019-06-04 | 中惠创智无线供电技术有限公司 | A kind of wireless charging system can autotomy electric protection circuit and method |
| CN107994669A (en) * | 2017-11-30 | 2018-05-04 | 中国电子科技集团公司第四十八研究所 | A kind of missile-borne microsatellite energy control system |
| CN107919705A (en) * | 2017-12-11 | 2018-04-17 | 辽宁厚能科技股份有限公司 | Battery pack prevents overdischarge circuit |
| CN109560585A (en) * | 2018-12-07 | 2019-04-02 | 珠海格力电器股份有限公司 | Circuit, energy storage device and control method are restarted in a kind of battery over-discharge |
| CN109586368A (en) * | 2018-12-07 | 2019-04-05 | 珠海格力电器股份有限公司 | Energy-storage system starter, starting method and energy-storage system |
| CN109586368B (en) * | 2018-12-07 | 2020-09-15 | 珠海格力电器股份有限公司 | Energy storage system starting device, starting method and energy storage system |
| CN109617193A (en) * | 2019-01-25 | 2019-04-12 | 湖南星邦重工有限公司 | A kind of lithium battery management system and aerial work platform |
| CN109787311A (en) * | 2019-01-25 | 2019-05-21 | 湖南星邦重工有限公司 | A kind of aerial work platform lithium battery power supply Control protection system |
| CN109787311B (en) * | 2019-01-25 | 2024-05-10 | 湖南星邦智能装备股份有限公司 | Lithium battery power supply control protection system for aerial work platform |
| CN110474396A (en) * | 2019-08-23 | 2019-11-19 | 湖南星邦重工有限公司 | A kind of scissor-type high-altitude operation vehicle and its battery Control protection system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20211203 Granted publication date: 20141231 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221203 Granted publication date: 20141231 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221228 Granted publication date: 20141231 |