CN209843863U - Lithium accumulator - Google Patents
Lithium accumulator Download PDFInfo
- Publication number
- CN209843863U CN209843863U CN201921132221.9U CN201921132221U CN209843863U CN 209843863 U CN209843863 U CN 209843863U CN 201921132221 U CN201921132221 U CN 201921132221U CN 209843863 U CN209843863 U CN 209843863U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- discharge
- battery pack
- lithium
- control assembly
- Prior art date
- 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 - Fee Related
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 98
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 32
- 230000017525 heat dissipation Effects 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium storage battery. The device comprises a shell, wherein a first accommodating cavity and a second accommodating cavity are arranged in the shell, and a control chamber is arranged between the first accommodating cavity and the second accommodating cavity; the first accommodating cavity is internally provided with a first lithium battery pack, and the second accommodating cavity is internally provided with a second lithium battery pack; the first lithium battery pack and the second lithium battery pack are composed of a plurality of lithium battery packs, and at least one discharge protection board is arranged between every two adjacent lithium battery packs and used for monitoring preset parameters; at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate; and when the monitored parameter of the first lithium battery pack reaches a preset value, the discharge control assembly is switched to the second lithium battery pack to form a discharge loop. The utility model discloses utilize discharge protection board and switching circuit, can prevent that the overdischarge condition from taking place to the life-span of extension lithium cell.
Description
Technical Field
The utility model relates to a lithium accumulator.
Background
In daily life, lithium batteries are almost everywhere visible. Lithium ion batteries have many advantages, energy density, light weight, no memory effect, etc. Therefore, batteries of large size for electric vehicles and small size for computer mainboards, and lithium batteries have become an indispensable part of people. However, lithium ion batteries also have disadvantages: people often see various safety accidents caused by the lithium battery, and people can feel the most impressive phenomena of explosion, fire and the like caused by the lithium battery.
The important cause of the battery explosion is mainly battery short circuit and overcharge, which can cause a large amount of heat and gas to accumulate in the lithium battery in a short time (the lithium battery can generate gas during operation), so that, in order to release pressure, the lithium battery can excite an internal pressure release device, the shell of the lithium battery can be directly cracked when the pressure is too high, and the two conditions can cause the internal material of the battery to directly contact with air, so that combustion occurs, and the battery explodes in a serious condition.
Therefore, although the charge and discharge protection circuit is provided in the charge and discharge circuit of the lithium battery, an explosion accident or a battery damage accident may occur because a small current continues to be charged even after the battery is fully charged, and finally, overcharge explosion may occur. The discharge overcurrent protection is realized by setting the maximum 20A for discharge riding, but the maximum 20A for long-time riding also easily causes the overheating of the battery pack and finally causes expansion and explosion.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a novel lithium storage battery.
In order to achieve the purpose, the lithium storage battery comprises a shell, wherein a first accommodating cavity and a second accommodating cavity are arranged in the shell, and a control room is arranged between the first accommodating cavity and the second accommodating cavity; the first accommodating cavity is internally provided with a first lithium battery pack, and the second accommodating cavity is internally provided with a second lithium battery pack;
the first lithium battery pack and the second lithium battery pack are composed of a plurality of lithium battery packs, and at least one discharge protection board is arranged between every two adjacent lithium battery packs and used for monitoring preset parameters;
at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate;
when the monitored parameter of the first lithium battery pack reaches a preset value, the discharge control assembly is switched to a second lithium battery pack to form a discharge loop; or when the monitored parameter of the second lithium battery pack reaches a preset value, the discharge control assembly is switched to the first lithium battery pack to form a discharge loop.
In order to achieve the purpose, the lithium storage battery comprises a shell, wherein a cavity and a control room are arranged in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a discharge protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs, and the discharge protection plate is at least arranged between every two adjacent lithium battery packs and used for monitoring preset parameters;
at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate;
when the monitored parameter reaches a predetermined value, the discharge control assembly switches the discharge circuit into a current-limiting discharge circuit.
In order to achieve the purpose, the lithium storage battery comprises a shell, wherein a cavity and a control room are arranged in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a charging protection plate and/or a discharging protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs;
a charging control assembly and/or a discharging control assembly are/is arranged in the control chamber; the charging control component is connected with the charging protection plate, the discharging control component is connected with the discharging protection plate,
when the monitored parameter reaches a predetermined value, the charging control component shuts off the charging loop or the discharging control component shuts off the discharging loop.
Wherein, a heat dissipation air duct is arranged at the upper part of the accommodating cavity; a heat exchange fan is arranged corresponding to the heat dissipation air channel.
The discharge protection assembly comprises a temperature control switch and a smoke sensor which are arranged in parallel; the switching component is a relay.
Wherein, an audible and visual alarm device is arranged in the charging loop and/or the discharging loop.
The utility model discloses increase the protection shield between the lithium cell package to utilize the relay as control assembly, can effectually prevent the hidden danger of charge-discharge in-process, prevent that the lithium cell package from putting the damage of in-process charging, having prolonged battery life.
Drawings
Fig. 1 is a schematic circuit diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic circuit diagram of embodiment 2 of the present invention.
Detailed Description
Example 1
The lithium storage battery comprises a shell, wherein a first accommodating cavity and a second accommodating cavity are arranged in the shell, and a control chamber is arranged between the first accommodating cavity and the second accommodating cavity; the first accommodating cavity is internally provided with a first lithium battery pack, and the second accommodating cavity is internally provided with a second lithium battery pack;
the first lithium battery pack and the second lithium battery pack are composed of a plurality of lithium battery packs, and at least one discharge protection board is arranged between every two adjacent lithium battery packs and used for monitoring preset parameters, such as the temperature of the lithium battery packs during charging or discharging; voltage, current, etc. during charging or discharging; a charging control assembly and/or a discharging control assembly are/is arranged in the control chamber;
at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate;
when the monitored parameter of the first lithium battery pack reaches a preset value, the discharge control assembly is switched to a second lithium battery pack to form a discharge loop; or when the monitored parameter of the second lithium battery pack reaches a preset value, the discharge control assembly is switched to the first lithium battery pack to form a discharge loop.
The circuit schematic diagram is shown in fig. 1, when a first lithium battery pack circuit is electrified, the relay is attracted, the normally open contact is closed, and the first lithium battery pack is conducted. And the normally closed contact is disconnected, and the second lithium battery pack does not work. When the first lithium battery pack circuit is powered off, the relay is also powered off. And the normally open contact is restored to the initial off state, and the first lithium battery pack circuit is disconnected. And the second lithium battery pack circuit starts to work through a normally closed contact of the relay.
Furthermore, a heat dissipation air duct is arranged at the upper part of the accommodating cavity; a heat exchange fan is arranged corresponding to the heat dissipation air channel. The heat exchange fan and the air duct are added, so that the service life of the battery can be prolonged.
In this embodiment, the dual power supplies are automatically switched. The device can prevent long-term ascending with load, resulting in over-discharge and continuous operation.
Example 2
The lithium storage battery in the embodiment comprises a shell, wherein a cavity and a control chamber are accommodated in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a charging protection plate and/or a discharging protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs, and the charging protection plate and/or the discharging protection plate is arranged between every two adjacent lithium battery packs and is used for monitoring preset parameters, such as the temperature of the lithium battery packs during charging or discharging; or voltage, current, etc. during charging or discharging; a charging control assembly and/or a discharging control assembly are/is arranged in the control chamber; the charging control assembly is connected with the charging protection board, the discharging control assembly is connected with the discharging protection board, and when the monitored parameter reaches a preset value, the charging control assembly cuts off the charging loop or the discharging control assembly cuts off the discharging loop.
Furthermore, a heat dissipation air duct is arranged at the upper part of the accommodating cavity; a heat exchange fan is arranged corresponding to the heat dissipation air channel.
The discharge protection assembly comprises a temperature control switch and a smoke sensor which are arranged in parallel; the switching component is a relay.
As shown in fig. 2, the charging protection board is provided with temperature sensors W1, W2; and a voltage sensor DY and a smoke sensor YW connected to the charging port C via a relay. Other predetermined parameters, such as charge and discharge current, may also be monitored as desired.
The control component is a relay with proper power, so that when the monitored parameter reaches a preset value, the charging loop or the discharging loop can be directly cut off.
Example 3
The lithium storage battery in the embodiment comprises a shell, wherein a cavity and a control chamber are accommodated in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a charging protection plate and/or a discharging protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs, and the charging protection plate and/or the discharging protection plate is arranged between every two adjacent lithium battery packs and is used for monitoring preset parameters, such as the temperature of the lithium battery packs during discharging; voltage, current, etc. during discharge; a discharge control assembly is arranged in the control chamber; the discharge control component is connected with the discharge protection board, when the monitored parameter reaches a preset value, the discharge control component switches the discharge loop into a current limiting discharge circuit R, as shown in figure 2, the current limiting discharge loop is a loop for increasing a current limiting resistor R,
as shown in fig. 2, the discharge protection board is provided with temperature sensors W1, W2; a voltage sensor DY, a smoke sensor YW, and the like. Which is connected to the discharge port F through a relay. Other predetermined parameters, such as discharge current, etc., may also be monitored as desired.
The control component is a relay with proper power, so that when the monitored parameter reaches a preset value, the common discharging loop can be switched to the current-limiting discharging loop.
Claims (6)
1. A lithium storage battery comprises a shell, wherein a first accommodating cavity and a second accommodating cavity are arranged in the shell, and a control chamber is arranged between the first accommodating cavity and the second accommodating cavity; the first accommodating cavity is internally provided with a first lithium battery pack, and the second accommodating cavity is internally provided with a second lithium battery pack;
the first lithium battery pack and the second lithium battery pack are composed of a plurality of lithium battery packs, and at least one discharge protection board is arranged between every two adjacent lithium battery packs and used for monitoring preset parameters;
at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate;
when the monitored parameter of the first lithium battery pack reaches a preset value, the discharge control assembly is switched to a second lithium battery pack to form a discharge loop; or when the monitored parameter of the second lithium battery pack reaches a preset value, the discharge control assembly is switched to the first lithium battery pack to form a discharge loop.
2. A lithium storage battery comprises a shell, wherein a cavity and a control chamber are accommodated in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a discharge protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs, and the discharge protection plate is at least arranged between every two adjacent lithium battery packs and used for monitoring preset parameters;
at least a discharge control assembly is arranged in the control chamber; the discharge control assembly is connected with the discharge protection plate;
when the monitored parameter reaches a predetermined value, the discharge control assembly switches the discharge circuit into a current-limiting discharge circuit.
3. A lithium storage battery comprises a shell, wherein a cavity and a control chamber are accommodated in the shell; the lithium battery pack storage device comprises a storage cavity, a plurality of lithium battery packs and a charging protection plate and/or a discharging protection plate, wherein the storage cavity is internally provided with the plurality of lithium battery packs;
a charging control assembly and/or a discharging control assembly are/is arranged in the control chamber; the charging control component is connected with the charging protection plate, the discharging control component is connected with the discharging protection plate,
when the monitored parameter reaches a predetermined value, the charging control component shuts off the charging loop or the discharging control component shuts off the discharging loop.
4. The lithium secondary battery according to claim 1, 2 or 3, wherein a heat dissipation air duct is provided at an upper portion of the accommodating chamber; a heat exchange fan is arranged corresponding to the heat dissipation air channel.
5. The lithium accumulator according to claim 1, 2 or 3, characterized in that the discharge protection assembly comprises a temperature-controlled switch and a smoke sensor arranged in parallel; the switching component is a relay.
6. A lithium accumulator according to claim 1, 2 or 3, characterized in that an audible and visual alarm is provided in the charging circuit and/or in the discharging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132221.9U CN209843863U (en) | 2019-07-18 | 2019-07-18 | Lithium accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132221.9U CN209843863U (en) | 2019-07-18 | 2019-07-18 | Lithium accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843863U true CN209843863U (en) | 2019-12-24 |
Family
ID=68899877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921132221.9U Expired - Fee Related CN209843863U (en) | 2019-07-18 | 2019-07-18 | Lithium accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843863U (en) |
-
2019
- 2019-07-18 CN CN201921132221.9U patent/CN209843863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |