CN212909068U - Lithium ion battery pack parallel circuit - Google Patents
Lithium ion battery pack parallel circuit Download PDFInfo
- Publication number
- CN212909068U CN212909068U CN202022228466.0U CN202022228466U CN212909068U CN 212909068 U CN212909068 U CN 212909068U CN 202022228466 U CN202022228466 U CN 202022228466U CN 212909068 U CN212909068 U CN 212909068U
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- Prior art keywords
- lithium ion
- ion battery
- batteries
- socket
- battery pack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a parallel circuit of lithium ion battery packs; the anti-reverse battery comprises batteries which are connected in parallel, wherein an output socket and a charging socket are respectively connected to two ends of the batteries after being connected in parallel, and an anti-reverse element is further connected between the output socket and the batteries. The utility model discloses a design prevents anti-diode in group battery output circuit, prevents that many lithium ion battery group from flowing backward the heavy current impact that the low voltage battery group produced in the twinkling of an eye high voltage battery group that exists when parallelly connected uses, ensures the parallelly connected safe handling of many group batteries.
Description
Technical Field
The utility model relates to a lithium ion battery group parallel circuit.
Background
The lithium ion battery has the advantages of high energy density, good cycle performance, no memory effect, low self-discharge rate, good environmental compatibility and the like, and is widely applied to the fields of aviation, aerospace, electric automobiles, electric tools and the like. In the use process of the lithium ion battery, a plurality of battery packs are required to be connected in parallel in order to increase the capacity, and due to the difference of the voltages of the battery packs, the problem that a high-voltage battery pack charges a low-voltage battery pack with a large current exists in the parallel connection moment, so that the electrical property and the safety of the parallel battery packs are influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a lithium ion battery group parallel circuit.
The utility model discloses a following technical scheme can realize.
The utility model provides a parallel circuit of lithium ion battery packs; the anti-reverse battery comprises batteries which are connected in parallel, wherein an output socket and a charging socket are respectively connected to two ends of the batteries after being connected in parallel, and an anti-reverse element is further connected between the output socket and the batteries.
The two poles of the battery are respectively connected to the protection board, and the two poles of the protection board are respectively connected with the input socket and the charging socket.
And an indicator lamp is connected between the two poles of the output socket.
And a switch is arranged on the positive connecting wire of the output socket.
The anti-reverse element is a diode and is arranged on a connection wire of the output socket and the cathode of the protection board.
The beneficial effects of the utility model reside in that: the anti-reverse diode is designed in the battery pack output loop, so that the high-voltage battery pack which instantaneously exists when a plurality of lithium ion battery packs are connected in parallel is prevented from flowing backwards to generate large current impact on the low-voltage battery pack, and the safe parallel use of the plurality of battery packs is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A lithium ion battery pack parallel circuit; the anti-reverse battery comprises batteries which are connected in parallel, wherein an output socket and a charging socket are respectively connected to two ends of the batteries after being connected in parallel, and an anti-reverse element is further connected between the output socket and the batteries.
The two poles of the battery are respectively connected to the protection board, and the two poles of the protection board are respectively connected with the input socket and the charging socket.
And an indicator lamp is connected between the two poles of the output socket.
And a switch is arranged on the positive connecting wire of the output socket.
The anti-reverse element is a diode and is arranged on a connection wire of the output socket and the cathode of the protection board.
Example (b): as shown in fig. 2, where X1 is an output socket, X2 is a charging socket, HL is a capacity indicator, the capacity is displayed according to the voltage between two poles of the output socket, V is an anti-reverse diode, QF is a switch, B is a protection board, and the protection board generally includes a control IC, a MOS switch, a JEPSUN aspect ratio signal precision resistor and auxiliary devices NTC, an ID memory, a PCB, and the like. The control IC controls the MOS switch to be switched on under all normal conditions to enable the battery cell to be communicated with an external circuit, and when the voltage of the battery cell or the loop current exceeds a specified value, the control IC immediately (tens of milliseconds) controls the MOS switch to be switched off to protect the safety of the battery cell, and G is a battery pack formed by batteries connected in parallel.
In the circuit, two poles of each battery in the battery pack G are respectively connected to a protection board B, and two leads are respectively led out through the positive pole P + and the negative pole P-of the protection board B to be connected with a charging socket and an output socket; an indicator lamp HL is connected between the two poles of the output socket, a switch QF is connected between the anode of the indicator lamp HL and the protection board B to be used as an output control element, and a diode which is opposite to the current direction is connected between the cathode of the indicator lamp HL and the negative terminal P-of the protection board B to prevent the high-voltage power supply from reversely flowing into the battery pack.
Claims (5)
1. A lithium ion battery parallel circuit is characterized in that: the anti-reverse battery comprises batteries which are connected in parallel, wherein an output socket and a charging socket are respectively connected to two ends of the batteries after being connected in parallel, and an anti-reverse element is further connected between the output socket and the batteries.
2. The lithium ion battery pack parallel circuit of claim 1, wherein: the two poles of the battery are respectively connected to the protection board, and the two poles of the protection board are respectively connected with the input socket and the charging socket.
3. The lithium ion battery pack parallel circuit of claim 1, wherein: and an indicator lamp is connected between the two poles of the output socket.
4. The lithium ion battery pack parallel circuit of claim 1, wherein: and a switch is arranged on the positive connecting wire of the output socket.
5. The lithium ion battery pack parallel circuit of claim 1, wherein: the anti-reverse element is a diode and is arranged on a connection wire of the output socket and the cathode of the protection board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022228466.0U CN212909068U (en) | 2020-10-09 | 2020-10-09 | Lithium ion battery pack parallel circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022228466.0U CN212909068U (en) | 2020-10-09 | 2020-10-09 | Lithium ion battery pack parallel circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212909068U true CN212909068U (en) | 2021-04-06 |
Family
ID=75260160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022228466.0U Active CN212909068U (en) | 2020-10-09 | 2020-10-09 | Lithium ion battery pack parallel circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212909068U (en) |
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2020
- 2020-10-09 CN CN202022228466.0U patent/CN212909068U/en active Active
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