CN204947643U - A kind of circuit realizing multiple battery pack complete alternation discharge and recharge - Google Patents
A kind of circuit realizing multiple battery pack complete alternation discharge and recharge Download PDFInfo
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- CN204947643U CN204947643U CN201520591678.1U CN201520591678U CN204947643U CN 204947643 U CN204947643 U CN 204947643U CN 201520591678 U CN201520591678 U CN 201520591678U CN 204947643 U CN204947643 U CN 204947643U
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Abstract
The utility model discloses a kind of circuit realizing multiple battery pack complete alternation discharge and recharge, comprise the battery modules of multiple parallel connection, battery modules adopts positive and negative two line input and output; Described battery modules comprises battery, charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, relay, current detection module and control module, and described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and serial battery form; The voltage sample input of described control module is connected with battery, the current sample input of control module is connected with current detection module, first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor.The battery modules meeting parallel with one another that the utility model solves different type voltage grade causes the problem of mutual discharge and recharge; And achieve in all battery modules in a bus bar circuit in parallel, each battery modules all realizes the total recycle process of discharge and recharge.
Description
Technical field
The utility model relates to a kind of circuit realizing multiple battery pack complete alternation discharge and recharge.
Background technology
Along with the consumption that is flourish, medium-sized, large-sized battery pack of electronic technology is increasing.And these battery pack production, test and use procedure in, many charging and discharging processes be used.
There is following shortcoming in existing charging device or discharge equipment:
1, battery pack needs to use the battery modules of same model to carry out parallel connection use, and battery pack namely in parallel requires that each cell voltage is identical, the battery modules of complete different type, electric pressure can not be carried out input and output in parallel.Because in battery pack, the difference between monomer always exists, and for capacity, its otherness is tending towards disappearing never, but progressively worsen.Same electric current is flow through in battery pack, comparatively speaking, the large person of capacity be always in small area analysis shallow fill shallowly to put, be tending towards capacity attenuation slowly, life, and the little person of capacity is always in big current super-charge super-discharge, is tending towards capacity attenuation quickening, the lost of life, performance parameter difference is increasing between the two, form positive feedback characteristic, low capacity premature failure, the group lost of life.
2, the discharge and recharge step of battery pack cannot reach the function of complete alternation, and the use of battery pack is bothered.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple, circuit realizing multiple battery pack complete alternation discharge and recharge that convenient operation, reliability are strong, solves the problem that prior art cannot realize complete alternation discharge and recharge.
The purpose of this utility model is achieved through the following technical solutions: a kind of circuit realizing multiple battery pack complete alternation discharge and recharge, comprises the battery modules of multiple parallel connection, and described battery modules adopts positive and negative two line input and output; Described battery modules comprises battery, charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and control module, and described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and serial battery form; The voltage sample input of described control module is connected with battery, the current sample input of control module is connected with current detection module, first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor;
Wherein, in charging process, when control module detects the charging current through current detection module, electric discharge metal-oxide-semiconductor is placed in opening by control module, when control module detects that the voltage of battery reaches overdischarge thresholding, charging metal-oxide-semiconductor is placed in closed condition by control module; In discharge process, when control module detects the discharging current through current detection module, charging metal-oxide-semiconductor is placed in opening by control module, and when control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in closed condition by control module.
Described current detection module comprises current sense resistor RSC.
Described battery modules is the battery modules of identical or dissimilar electric pressure.
Described relay is thermal relay RF.
Described control module comprises the first comparator, the second comparator, the 3rd comparator and the 4th comparator; The positive input of the first described comparator is connected with current detection module, and the reverse input end of the first comparator inputs the first reference current, and the output of the first comparator is connected with charging metal-oxide-semiconductor; The positive input of the second described comparator is connected with battery, and the reverse input end of the second comparator inputs the first reference voltage, and the output of the second comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 3rd described comparator is connected with current detection module, and the reverse input end of the 3rd comparator inputs the second reference current, and the output of the 3rd comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 4th described comparator is connected with battery, and the reverse input end of the 4th comparator inputs the second reference voltage, and the output of the 4th comparator is connected with charging metal-oxide-semiconductor.
The beneficial effects of the utility model are:
(1) the utility model is not overcharging on the basis of only putting, solve with the opening and closing of electric discharge metal-oxide-semiconductor the problem that the meeting parallel with one another of multiple battery modules causes mutual discharge and recharge by controlling charging metal-oxide-semiconductor, or even the parallel connection of the battery modules of complete different type voltage grade.
(2) the utility model achieve when all battery modules all in a bus bar circuit in parallel, export only have positive and negative two lines, each battery modules all can realize the total recycle process of charge and discharge: the charging metal-oxide-semiconductor after charge step completes is identical with the initial condition of discharge step with the open and-shut mode of electric discharge metal-oxide-semiconductor, and the charging metal-oxide-semiconductor in like manner after discharge step completes is identical with the initial condition of charge step with the open and-shut mode of electric discharge metal-oxide-semiconductor.
(3) the utility model also comprises a relay for the protection of battery modules, disconnects, have fail safe when electric current is excessive.
(4) the utility model is simple, convenient operation, and reliability is strong.
Accompanying drawing explanation
Fig. 1 is the utility model block diagram;
Fig. 2 is battery modules circuit diagram;
Fig. 3 is that electric discharge completes equivalent circuit diagram;
Fig. 4 is charging complete equivalent circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail: as shown in Figure 1, a kind of circuit realizing multiple battery pack complete alternation discharge and recharge, comprises the battery modules of multiple parallel connection, and described battery modules adopts positive and negative two line input and output; As shown in Figure 2, described battery modules comprises battery, charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and control module, and described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and serial battery form; The voltage sample input of described control module is connected with battery, the current sample input of control module is connected with current detection module, first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor.
In charging process, when control module detects the charging current through current detection module, electric discharge metal-oxide-semiconductor is placed in opening by control module, and when control module detects that the voltage of battery reaches overdischarge thresholding, charging metal-oxide-semiconductor is placed in closed condition by control module.Until all charging metal-oxide-semiconductors are in closed condition, represent that all battery modules bulk charges complete, equivalent circuit diagram as shown in Figure 4.
In discharge process, when control module detects the discharging current through current detection module, charging metal-oxide-semiconductor is placed in opening by control module, and when control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in closed condition by control module.Until all electric discharge metal-oxide-semiconductors are in closed condition, represent that all battery modules have all been discharged, equivalent circuit diagram as shown in Figure 3.
After electric discharge completes, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is in closed condition, and the charging metal-oxide-semiconductor required for charging with battery is identical with the initial condition of the metal-oxide-semiconductor that discharges.In like manner, after charging complete, electric discharge metal-oxide-semiconductor is in opening, and charging metal-oxide-semiconductor is in closed condition, identical with the initial condition of the metal-oxide-semiconductor that discharges with the charging metal-oxide-semiconductor required for battery discharge.Therefore discharge and recharge complete alternation can be realized.
Described current detection module comprises current sense resistor RSC.
Described battery modules is the battery modules of identical or dissimilar electric pressure.
In the process of charging and discharging, certain controls the electric current of module once excessive, and relay disconnects automatically, protects this battery modules.
Described relay is thermal relay RF.
Described control module comprises the first comparator, the second comparator, the 3rd comparator and the 4th comparator; The positive input of the first described comparator is connected with current detection module, and the reverse input end of the first comparator inputs the first reference current, and the output of the first comparator is connected with charging metal-oxide-semiconductor; The positive input of the second described comparator is connected with battery, and the reverse input end of the second comparator inputs the first reference voltage, and the output of the second comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 3rd described comparator is connected with current detection module, and the reverse input end of the 3rd comparator inputs the second reference current, and the output of the 3rd comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 4th described comparator is connected with battery, and the reverse input end of the 4th comparator inputs the second reference voltage, and the output of the 4th comparator is connected with charging metal-oxide-semiconductor.
Claims (5)
1. realize a circuit for multiple battery pack complete alternation discharge and recharge, it is characterized in that: the battery modules comprising multiple parallel connection, described battery modules adopts positive and negative two line input and output; Described battery modules comprises battery, charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and control module, and described charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module, relay and serial battery form; The voltage sample input of described control module is connected with battery, the current sample input of control module is connected with current detection module, first metal-oxide-semiconductor control output end of control module is connected with charging metal-oxide-semiconductor, and the second metal-oxide-semiconductor control output end of control module is connected with electric discharge metal-oxide-semiconductor.
2. a kind of circuit realizing multiple battery pack complete alternation discharge and recharge according to claim 1, is characterized in that: described current detection module comprises current sense resistor RSC.
3. a kind of circuit realizing multiple battery pack complete alternation discharge and recharge according to claim 1, is characterized in that: described battery modules is the battery modules of identical or dissimilar electric pressure.
4. a kind of circuit realizing multiple battery pack complete alternation discharge and recharge according to claim 1, is characterized in that: described relay is thermal relay RF.
5. a kind of circuit realizing multiple battery pack complete alternation discharge and recharge according to claim 1, is characterized in that: described control module comprises the first comparator, the second comparator, the 3rd comparator and the 4th comparator; The positive input of the first described comparator is connected with current detection module, and the reverse input end of the first comparator inputs the first reference current, and the output of the first comparator is connected with charging metal-oxide-semiconductor; The positive input of the second described comparator is connected with battery, and the reverse input end of the second comparator inputs the first reference voltage, and the output of the second comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 3rd described comparator is connected with current detection module, and the reverse input end of the 3rd comparator inputs the second reference current, and the output of the 3rd comparator is connected with electric discharge metal-oxide-semiconductor; The positive input of the 4th described comparator is connected with battery, and the reverse input end of the 4th comparator inputs the second reference voltage, and the output of the 4th comparator is connected with charging metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591678.1U CN204947643U (en) | 2015-08-03 | 2015-08-03 | A kind of circuit realizing multiple battery pack complete alternation discharge and recharge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591678.1U CN204947643U (en) | 2015-08-03 | 2015-08-03 | A kind of circuit realizing multiple battery pack complete alternation discharge and recharge |
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| Publication Number | Publication Date |
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| CN204947643U true CN204947643U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520591678.1U Expired - Fee Related CN204947643U (en) | 2015-08-03 | 2015-08-03 | A kind of circuit realizing multiple battery pack complete alternation discharge and recharge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293755A (en) * | 2020-03-20 | 2020-06-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
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2015
- 2015-08-03 CN CN201520591678.1U patent/CN204947643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293755A (en) * | 2020-03-20 | 2020-06-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
| CN111293755B (en) * | 2020-03-20 | 2021-11-16 | 烟台艾睿光电科技有限公司 | Protection circuit for equalizing discharge of parallel battery pack and chargeable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180803 |