CN211719734U - Power-off control device used during thermal runaway of battery - Google Patents
Power-off control device used during thermal runaway of battery Download PDFInfo
- Publication number
- CN211719734U CN211719734U CN202020327238.6U CN202020327238U CN211719734U CN 211719734 U CN211719734 U CN 211719734U CN 202020327238 U CN202020327238 U CN 202020327238U CN 211719734 U CN211719734 U CN 211719734U
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- Prior art keywords
- battery
- thermal runaway
- control device
- controller
- gas generator
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 2
- 239000011810 insulating material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000036632 reaction speed Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
A power-off control device for battery thermal runaway relates to the technical field of electric control, and aims to reduce or solve the problem that fire is easily caused when the battery is in thermal runaway; the actuator comprises a conducting strip, a cutting knife, a piston, a micro gas generator, a gas generator terminal, a terminal protection piece, a cushion block and a shell; the negative pole of the battery pack is connected with an electrical appliance, the positive pole of the battery pack is connected with an execution element, and the execution element is connected with the electrical appliance; the controller is respectively connected with the controller power supply, the temperature sensor and the execution element; the conductive tab is connected to the terminal guard. When the battery breaks down or is in a thermal runaway state, the device immediately cuts off the power supply of the whole system, so that the reaction speed of the battery is reduced, and the reaction of the battery can be stopped by matching with a fire extinguishing treatment measure, thereby effectively controlling the occurrence of fire.
Description
Technical Field
The utility model relates to an electric control technical field, concretely relates to power off control device when battery thermal runaway.
Background
The batteries with the voltage of more than 1.5V are all composed of a plurality of single small batteries. During the use process, the thermal runaway of the battery can cause fire disasters in many cases. The problem of the single small battery is initially caused when the thermal runaway occurs, and at the moment, all the single small batteries in the system supply power to the single small battery, the reaction of the single small battery can be accelerated, for example, a mobile phone and a new energy automobile have the possibility of causing fire due to the thermal runaway of the battery.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a reduce or solve the battery and cause the problem of conflagration easily when thermal runaway, provide a power failure control device when battery thermal runaway.
A power failure control device for battery thermal runaway comprises a controller unit, a temperature sensor, an actuator and a battery pack,
the controller unit comprises a controller power supply and a controller;
the negative electrode of the battery pack is connected with an electric appliance, the positive electrode of the battery pack is connected with an execution element, and the execution element is connected with the electric appliance; the controller is respectively connected with the controller power supply, the temperature sensor and the execution element; the temperature sensor is arranged inside the battery pack;
the actuating element comprises a conducting strip, a cutting knife, a piston, a micro gas generator, a gas generator terminal, a terminal protection piece, a cushion block and a shell;
two ends of the wiring end of the gas generator are respectively connected with the micro gas generator and the controller, and the cutting knife is arranged at the lower end of the piston; the micro gas generator is arranged at the upper end of the piston;
the cushion block is fixed inside the shell, a groove is formed in the cushion block, and the plane where the groove is located is attached to the conducting sheet; the position of the groove corresponds to the position of the cutting-off cutter;
the conductive tabs are connected with terminal guards.
The utility model has the advantages that: a outage controlling means when battery thermal runaway, when battery broke down or thermal runaway state, entire system's power supply is cut off at once to this device, makes the reaction rate of battery descend, deuterogamies the treatment of putting out a fire measure, just can stop the reaction of battery, the problem that effectual control conflagration took place.
Drawings
Fig. 1 is a flow chart of the self-fault detection of the power failure control device in thermal runaway of the battery according to the present invention;
fig. 2 is a flow chart of the battery thermal runaway detection of the power failure control device according to the present invention;
fig. 3 is a schematic structural diagram of the power failure control device for thermal runaway of a battery according to the present invention, when the power failure control device is applied to an electrical appliance such as a mobile phone, a notebook computer or a charger;
fig. 4 is a schematic structural diagram of an application of the power failure control device in the field of automobiles when the battery is out of control due to thermal runaway according to the present invention;
FIG. 5A is a schematic diagram of the actuator of FIG. 4;
FIG. 5B is a side view of FIG. 5A;
FIG. 5C is a top view of FIG. 5A;
fig. 6 is a schematic view of the structure of the terminal guard of fig. 5.
In the figure: 1. the device comprises a controller unit, 1-1 parts, a controller power supply, 1-2 parts, a controller, 2 parts, a temperature sensor, 3 parts, an actuating element, 3-1 parts, a conducting strip, 3-2 parts, a cutting knife, 3-3 parts, a piston, 3-4 parts, a micro gas generator, 3-5 parts, a gas generator terminal, 3-6 parts, a terminal protection piece, 3-7 parts, a cushion block, 3-8 parts, a shell, 3-6-1 parts, a lower protection cover, 3-6-2 parts, a connecting bolt, 3-6-3 parts, a buckle, 3-6-4 parts, a self-locking nut, 3-6-5 parts, an upper protection cover and 4 parts and a battery pack.
Detailed Description
The present embodiment is described with reference to fig. 1 to 6, and a power failure control device in the event of thermal runaway of a battery includes a controller unit 1, a temperature sensor 2, an actuator 3, and a battery pack 4,
the controller unit 1 comprises a controller power supply 1-1 and a controller 1-2;
the negative pole of the battery pack 4 is connected with an electric appliance, the positive pole of the battery pack is connected with the execution element 3, and the execution element 3 is connected with the electric appliance; the controller 1-2 is respectively connected with a controller power supply 1-1, a temperature sensor 2 and an actuating element 3; the temperature sensor 2 is arranged inside the battery pack 4;
the actuator 3 comprises a conducting strip 3-1, a cutting knife 3-2, a piston 3-3, a micro gas generator 3-4, a gas generator terminal 3-5, a terminal protection piece 3-6, a cushion block 3-7 and a shell 3-8;
two ends of the gas generator terminal 3-5 are respectively connected with the micro gas generator 3-4 and the controller 1-2, the cutting knife 3-2 and the piston 3-3 are integrally formed, so that the structure is more firm, and the cutting knife 3-2 is arranged at the lower end of the piston 3-3; the micro gas generator 3-4 is arranged at the upper end of the piston 3-3;
the cushion blocks 3-7 are fixed inside the shell 3-8, grooves are formed in the cushion blocks 3-7, and the planes where the grooves are located are attached to the conductive sheets 3-1; and the position of the groove corresponds to the position of the cutting knife 3-2;
the conductive sheet 3-1 is connected to the terminal guard 3-6.
The present embodiment will be described with reference to fig. 1, and the power failure control device for thermal runaway of a battery is composed of a controller unit 1, a temperature sensor 2, an actuator 3, and a battery pack 4. The controller unit 1 is respectively connected with a temperature sensor 2 and an actuating element 3; the battery pack 4 is connected with an electrical appliance, and the execution element 3 is connected with the electrical appliance;
the actuating element 3 is arranged at the positive pole of the battery, and when electric appliances (including automobiles) need to use a plurality of batteries, the actuating element 3 is arranged at the positive pole of each battery in the battery pack 4; the temperature sensor 2 is installed inside the battery pack 4; the controller unit 1 may be mounted on the side of the actuator 3 or at another suitable location of the consumer.
In this embodiment, the battery pack 4 may be one battery or a plurality of batteries, each battery has at least one temperature sensor 2, if a battery is in the battery pack 4, the negative electrode of the battery is connected with one end of an electrical appliance, the positive electrode of the battery is connected with the conducting strip 3-1, and the other end of the conducting strip 3-1 is connected with the other end of the electrical appliance;
if the battery pack is a plurality of batteries, the batteries are connected in series, the negative electrode of the battery pack 4 is connected with one end of an electrical appliance, a conducting strip 3-1 is connected between adjacent batteries, and finally the positive electrode of the battery pack 4 is connected with the electrical appliance through the conducting strip 3-1.
The controller 1-2 reads the real-time temperature signal; when the same electrical appliance (including an automobile) uses one battery, the controller 1-2 reads the temperature signals of the same electrical appliance at the same time, and when the temperature signals exceed the maximum temperature setting, the controller 1-2 sends out a power-off signal; when the electric power is supplied by a plurality of batteries, and the abnormal temperature of one battery is increased, the controller sends out a power-off signal.
In the embodiment, when an electrical appliance starts to work or is charged, a power-off control device is started when a battery is out of control thermally, the controller 1-2 supplies power through the controller power supply 1-1, the controller unit 1 detects the device, detects whether short circuit and open circuit of a circuit in the device or whether a gas element is damaged or not, and sends out a fault alarm signal when a fault occurs.
In the embodiment described with reference to fig. 3, when the device is used in an electrical appliance such as a mobile phone, a notebook computer, or a charger, the actuator 3 may be a normally open relay or an element with similar functions. When the power supply is switched on, the controller 1-2 closes the normally open relay to start to supply power to the electrical appliance.
Referring to fig. 4 and 5A-5C, the embodiment is described, when the device is used in an automobile, the actuator 3 is composed of a housing 3-8, a micro gas generator 3-4, a piston 3-3, a cutting knife 3-2, a copper conducting strip 3-1 (with connecting bolts at both ends), a terminal protection piece 3-6 (clamped by a self-contained hexagonal structure) and a cushion block 3-7, and the terminal protection piece 3-6 comprises a lower protection cover 3-6-1, a connecting bolt 3-6-2, a buckle 3-6-3, a self-locking nut 3-6-4 and an upper protection cover 3-6-5; the lower protecting cover 3-6-1 is connected with the upper protecting cover 3-6-5 through a buckle 3-6-3, and the connecting bolt 3-6-2 penetrates through the electric sheet 3-1 to be fixed with the self-locking nut 3-6-4. The cutting knife 3-2 is arranged at the lower end of the piston 3-3 and is integrally formed with the piston; the terminal 3-5 of the gas generator is provided with two electrodes, one end of the terminal is connected with the controller 1-2, the controller 1-2 gives an electric signal to the micro gas generator 3-4, the micro gas generator 3-4 generates gas, the gas pressure enables the cylindrical end below the micro gas generator 3-4 to push the piston 3-3 to move downwards quickly, and the cutting knife 3-2 cuts off the copper conducting strip 3-1 to cut off power supply.
Claims (7)
1. A power failure control device for battery thermal runaway comprises a controller unit (1), a temperature sensor (2), an actuating element (3) and a battery pack (4), and is characterized in that:
the controller unit (1) comprises a controller power supply (1-1) and a controller (1-2);
the negative pole of the battery pack (4) is connected with an electrical appliance, the positive pole of the battery pack is connected with the execution element (3), and the execution element (3) is connected with the electrical appliance; the controller (1-2) is respectively connected with the controller power supply (1-1), the temperature sensor (2) and the execution element (3); the temperature sensor (2) is arranged inside the battery pack (4);
the actuator (3) comprises a conducting strip (3-1), a cutting knife (3-2), a piston (3-3), a micro gas generator (3-4), a gas generator terminal (3-5), a terminal protection piece (3-6), a cushion block (3-7) and a shell (3-8);
two ends of the gas generator terminal (3-5) are respectively connected with the micro gas generator (3-4) and the controller (1-2), and the cutting knife (3-2) is arranged at the lower end of the piston (3-3); the micro gas generator (3-4) is arranged at the upper end of the piston (3-3);
the cushion blocks (3-7) are fixed inside the shell (3-8), grooves are formed in the cushion blocks (3-7), and the planes where the grooves are located are attached to the conducting strips (3-1); and the position of the groove corresponds to the position of the cutting-off knife (3-2);
the conductive sheet (3-1) is connected to a terminal guard (3-6).
2. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: the terminal protection piece (3-6) comprises a lower protection cover (3-6-1), a connecting bolt (3-6-2), a buckle (3-6-3), a self-locking nut (3-6-4) and an upper protection cover (3-6-5); the lower protective cover (3-6-1) is connected with the upper protective cover (3-6-5) through a buckle (3-6-3), and the connecting bolt (3-6-2) penetrates through the conducting strip (3-1) and is fixed with the self-locking nut (3-6-4).
3. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: when the battery pack (4) comprises a plurality of batteries, the positive electrode of each battery is provided with the actuating element (3).
4. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: each cell in the battery pack (4) is fitted with at least one temperature sensor (2).
5. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: the conducting strip (3-1) is made of copper material, and two ends of the conducting strip are provided with connecting bolts; the cutting knife (3-2) is made of insulating materials.
6. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: the cutting knife (3-2) and the piston (3-3) are integrally formed.
7. A power failure control device in the event of thermal runaway of a battery according to claim 1, wherein: the terminal protection pieces (3-6) adopt a hexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327238.6U CN211719734U (en) | 2020-03-13 | 2020-03-13 | Power-off control device used during thermal runaway of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020327238.6U CN211719734U (en) | 2020-03-13 | 2020-03-13 | Power-off control device used during thermal runaway of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211719734U true CN211719734U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020327238.6U Expired - Fee Related CN211719734U (en) | 2020-03-13 | 2020-03-13 | Power-off control device used during thermal runaway of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211719734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437389A (en) * | 2021-06-23 | 2021-09-24 | 西安电子科技大学芜湖研究院 | Battery liquid cooling system with deformation detection and fire extinguishing functions |
| WO2024106923A1 (en) * | 2022-11-14 | 2024-05-23 | 한국해양대학교 산학협력단 | Battery fire extinguishing device |
-
2020
- 2020-03-13 CN CN202020327238.6U patent/CN211719734U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437389A (en) * | 2021-06-23 | 2021-09-24 | 西安电子科技大学芜湖研究院 | Battery liquid cooling system with deformation detection and fire extinguishing functions |
| WO2024106923A1 (en) * | 2022-11-14 | 2024-05-23 | 한국해양대학교 산학협력단 | Battery fire extinguishing device |
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| 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: 20201020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |