CN214971360U - Novel passive battery thermal runaway management device and new energy automobile - Google Patents
Novel passive battery thermal runaway management device and new energy automobile Download PDFInfo
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- CN214971360U CN214971360U CN202121209753.5U CN202121209753U CN214971360U CN 214971360 U CN214971360 U CN 214971360U CN 202121209753 U CN202121209753 U CN 202121209753U CN 214971360 U CN214971360 U CN 214971360U
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Abstract
The utility model discloses a novel passive battery thermal runaway management device and a new energy automobile, wherein the battery thermal runaway management device comprises a bearing part and an inflation plate, wherein the bearing part is used for bearing the weight of a human body and/or goods; the blowing plate is provided with a pipeline for filling fire extinguishing agent; the blowing plate is fixed below the bearing part and positioned above a lithium battery module of the new energy automobile; the melting point of the expansion plate is between 660 ℃ and 700 ℃. The new energy automobile comprises the battery thermal runaway management device. The battery thermal runaway management device can timely cool the lithium battery module before the thermal runaway of the lithium battery module occurs, and effectively prevents the lithium battery module from being on fire.
Description
Technical Field
The utility model relates to a novel passive battery thermal runaway management device and used this management device's new energy automobile.
Background
With the development of new energy industry, lithium ion batteries are widely applied to daily electronic equipment and gradually go to large-scale and integration, and frequent lithium ion battery module accidents of new energy automobiles still restrict the development of the industry. The lithium ion battery pack is used for the new energy automobile, if fire explosion occurs, the damage and loss caused by the lithium ion battery pack are much more serious than those caused by the single lithium ion battery, and the domino effect is generated mainly due to the propagation of thermal runaway of the lithium ion battery. In the present society, lithium ion battery modules have been widely used in people's life and production due to their excellent properties such as high transmission voltage, high energy density, long cycle life, low self-discharge rate, and no memory effect. However, when the heat generation of the lithium ion battery module exceeds 660-. Therefore, the safety problem of the battery has become more than a technical problem and has become a social problem to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the first invention of the present invention is to provide a novel passive battery thermal runaway management device, which can timely cool down a lithium battery module before thermal runaway occurs in the lithium battery module, thereby effectively preventing the lithium battery module from firing. The second object of the present invention is to provide a new energy vehicle using the battery thermal runaway management device.
In order to achieve the above first object, the present invention adopts the following technical solutions:
a novel passive battery thermal runaway management device comprises a bearing part and an inflation plate, wherein the bearing part is used for bearing the weight of a human body and/or goods; the blowing plate is provided with a pipeline for filling fire extinguishing agent; the blowing plate is fixed below the bearing part and positioned above a lithium battery module of the new energy automobile; the melting point of the blowing plate is between 660 ℃ and 700 ℃; the melting point of the blowing plate is between 660 ℃ and 700 ℃; the number of the pipelines is several, the pipelines are distributed in even rows, and the intervals among the pipelines in the same row are equal.
Preferably, the bearing part is made of iron or stainless steel, and the blowing plate is made of aluminum.
Preferably, the bearing part is further provided with a reinforcing rib.
Preferably, the number of the reinforcing ribs is several; the reinforcing ribs are arranged on the bearing member in a spaced-apart relationship.
Further, the inflation panel is a sheet-like structure.
Further, the bearing member is fixedly connected to the inflation plate by riveting or welding or joggling or bolting means.
Furthermore, an inert gas generator is arranged on the blowing plate.
Preferably, the inert gas generator comprises a first cavity for containing ignition powder and a second cavity for containing inert gas generation powder; the first cavity is internally provided with a heating resistor, the first cavity is also provided with a power line for connecting an external power supply, and the power line is electrically connected with the heating resistor; the first cavity is connected with the second cavity through a connecting channel.
Preferably, the control circuit of the inert gas generator comprises a pressure sensor, a PLC controller and an indicator light; and the pressure sensor, the PLC and the indicator lamp are electrically connected in sequence.
In order to achieve the second object, the present invention adopts the following technical solutions:
a new energy automobile comprises the novel passive battery thermal runaway management device; the novel passive battery thermal runaway management device is fixedly arranged below a chassis of the new energy automobile.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a novel passive battery thermal runaway management device, because it has set up the inside inflation board that fills of pipeline has the fire extinguishing agent, and the melting point of inflation board is 660 between the 700 ℃, so before lithium battery module reachs temperature 660 and becomes fiery 700 ℃, the heat that gives out through lithium battery module work melts the inflation board, thereby release the inside fire extinguishing agent of inflation board, make the fire extinguishing agent flow lithium battery module on the surface, the realization is cooled down the effect to lithium battery module, the phenomenon that lithium battery module was on fire has been avoided appearing. Furthermore, the tubing on the blow-up plate also helps to increase the stiffness of the blow-up plate.
2. Novel passive battery thermal runaway management device, owing to the inflation board that adopts is sheet structure, so be convenient for the installation between bearing piece and the inflation board.
3. Novel passive battery thermal runaway management device, because the material of its bearing piece is iron or stainless steel to can guarantee the weight of sufficient rigidity in order to support people and/goods.
4. Novel passive battery thermal runaway management device, because the material of its inflation board is aluminium, so not only satisfied the required melting point requirement of inflation board, weight is more light moreover.
5. Novel passive battery thermal runaway management device, because a plurality of pipeline on its inflation board, the pipeline is even number row and distributes to interval between the pipeline in same row is equal, has strengthened the rigidity of inflation board, thereby reaches the reinforcing the whole rigid purpose of thermal runaway management device.
6. Novel passive battery thermal runaway management device, because still be equipped with the strengthening rib on its bearing member, so strengthened the rigidity of bearing member greatly to help improving the bearing capacity of bearing member. And the number of the reinforcing ribs is a plurality, so that the rigidity of the bearing part is further enhanced.
7. Novel passive battery thermal runaway management device, because its bearing member is through riveting or welding or joggle or bolt device fixed connection the board that blows helps the integrated into one piece of bearing member and board that blows, the shipment of being convenient for.
8. Novel passive battery thermal runaway management device, owing to it has set up inert gas generator, utilize the inert gas that inert gas generator sent to can accelerate the flow of fire extinguishing agent when fire extinguishing agent is gasified, improve extinguishing efficiency 30% -50%.
9. The utility model discloses a novel passive battery thermal runaway management device, because its inert gas generator includes pressure sensor, PLC controller and pilot lamp; and the pressure sensor, the PLC and the indicator lamp are electrically connected in sequence. The pressure value near the inert gas generator is detected through the pressure sensor, then the pressure value is compared with the preset pressure value inside the PLC, when the pressure value near the pressure sensor is larger than the preset pressure value, the indicator lamp is on, the inert gas generator works, otherwise, when the pressure value near the pressure sensor is smaller than the preset pressure value, the indicator lamp is off, and the inert gas generator does not work.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first preferred embodiment of the novel passive battery thermal runaway management device according to the present invention, which is combined with a lithium battery module.
Fig. 2 is a schematic view of the structure of the inflation panel of fig. 1.
Figure 3 is a cross-sectional view in the direction a-a of the inflation panel of figure 2.
Fig. 4 is a schematic structural diagram of the second preferred embodiment of the novel passive thermal runaway management device for battery of the present invention combined with a lithium battery module.
Fig. 5 is a mechanical schematic diagram of the gas generator of fig. 4.
Fig. 6 is a sectional view taken along the direction B-B of fig. 5.
Fig. 7 is a schematic diagram of a control circuit of the gas generator in fig. 4.
Wherein the reference symbols are:
1. a bearing member; 2. a blow-up plate; 21. a pipeline; 3. a lithium battery module; 4. an inert gas generator; 41. a first cavity; 42. a second cavity; 43. a power line; 44. and (3) a filter.
Detailed Description
Example one
Fig. 1 to fig. 3 show a combination structure of a first preferred embodiment of the novel passive battery thermal runaway management device and a lithium battery module, wherein the first preferred embodiment of the novel passive battery thermal runaway management device mainly comprises a bearing member 1 for bearing the weight of a human body and/or goods and a blowing plate 2; the blowing plate is provided with a pipeline 21 for filling fire extinguishing agent; the blowing plate is fixed below the bearing part and positioned above the lithium battery module 3 of the new energy automobile; the melting point of the expansion plate is between 660 ℃ and 700 ℃.
The utility model discloses a novel passive battery thermal runaway management device, because it has set up the inside inflation board that fills of pipeline has the fire extinguishing agent, and the melting point of inflation board is 660 between the 700 ℃, so before lithium battery module reachs temperature 660 and becomes fiery 700 ℃, the heat that gives out through lithium battery module work melts the inflation board, thereby release the inside fire extinguishing agent of inflation board, make the fire extinguishing agent flow lithium battery module on the surface, the realization is cooled down the effect to lithium battery module, the phenomenon that lithium battery module was on fire has been avoided appearing. Furthermore, the tubing on the blow-up plate also helps to increase the stiffness of the blow-up plate.
Specifically, the pipeline is a plurality of, the pipeline is even number row distribution to the interval between the pipeline in same row is equal, has strengthened the rigidity of inflation board, thereby reaches the reinforcing thermal runaway management device whole rigid purpose.
Specifically, the fire extinguishing agent comprises a component of perfluorohexanone liquid or heptafluoropropane liquid.
Specifically, the inflation board is the sheet structure, the installation between the bearing member of being convenient for and the inflation board.
Particularly, the bearing part is of a shell-shaped structure, and the top of the shell-shaped structure is a plane, so that the weight of people and/or goods can be better borne.
Specifically, the bearing range value of the bearing part is between 1000 and 2000 kg.
In particular, the load bearing member is made of iron or stainless steel, so that sufficient rigidity can be ensured to support the weight of people and/or goods.
In particular, the bearing part is further provided with a reinforcing rib (not shown), so that the rigidity of the bearing part is greatly enhanced, and the bearing capacity of the bearing part is improved. And the number of the reinforcing ribs is a plurality of, and the reinforcing ribs are arranged on the bearing part in a mutually spaced mode, so that the rigidity of the bearing part is further enhanced.
Specifically, the material of inflation board is aluminium, so not only satisfied the required melting point requirement of inflation board, and weight is lighter moreover.
Specifically, the bearing part is fixedly connected with the inflation plate through riveting or welding or joggling or a bolt device, so that the bearing part and the inflation plate are integrally formed, and the shipment is facilitated.
Example two
Fig. 4 to 7 show a combination structure of a second preferred embodiment of the novel passive battery thermal runaway management device and a lithium battery module, wherein the only difference between the second preferred embodiment of the novel passive battery thermal runaway management device and the first preferred embodiment described in the first embodiment is as follows:
and an inert gas generator 4 is also arranged on the blowing plate. When the fire extinguishing agent is gasified, the flow of the gasified fire extinguishing agent can be accelerated by using the inert gas emitted by the inert gas generator, and the fire extinguishing efficiency is improved by 30-50%.
As shown in fig. 5 and 6, the mechanical structure of the inert gas generator of the present invention includes a first cavity 41 for holding ignition charge and a second cavity 42 for holding inert gas generating charge; a heating resistor (not shown) is arranged in the first cavity, a power line 43 for connecting an external power supply is also arranged on the first cavity, and the power line is electrically connected with the heating resistor; the first cavity is connected with the second cavity through a connecting channel. When the power line is connected with an external power supply, the heating resistance wire generates heat, the ignition powder in the first cavity is ignited through the heat emitted by the heating resistance wire, the generated spark enters the second cavity through the connecting channel to ignite the inert gas to generate the powder, and therefore the gas generator generates the inert gas. In order to make the generated inert gas more pure, the inert gas generator is further provided with a filter 44 for filtering the inert gas. The inert gas is argon and nitrogen.
As shown in fig. 7, the control circuit of the inert gas generator includes a pressure sensor, a PLC controller and an indicator light; and the pressure sensor, the PLC and the indicator lamp are electrically connected in sequence. The pressure value near the inert gas generator is detected through the pressure sensor, then the pressure value is compared with the preset pressure value inside the PLC, when the pressure value near the pressure sensor is larger than the preset pressure value, the indicator lamp is on, the inert gas generator works, otherwise, when the pressure value near the pressure sensor is smaller than the preset pressure value, the indicator lamp is off, and the inert gas generator does not work.
It should be noted that, the utility model also discloses the new energy automobile of two kinds of structures:
the new energy automobile with the first structure comprises a first preferred implementation mode of the novel passive battery thermal runaway management device in the first embodiment, and the first preferred implementation mode is arranged below a chassis of the new energy automobile.
The new energy automobile with the second structure comprises a second preferred implementation mode of the novel passive battery thermal runaway management device in the second embodiment, and the second preferred implementation mode is arranged below the new energy automobile chassis.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel passive battery thermal runaway management device which characterized in that: comprises a bearing part and an inflation plate for bearing the weight of a human body and/or goods; the blowing plate is provided with a pipeline for filling fire extinguishing agent; the blowing plate is fixed below the bearing part and positioned above a lithium battery module of the new energy automobile; the melting point of the expansion plate is between 660 ℃ and 700 ℃.
2. The new passive battery thermal runaway management device of claim 1, further comprising: the material of bearing piece is iron or stainless steel, the material of inflation board is aluminium.
3. The new passive battery thermal runaway management device of claim 1, further comprising: and reinforcing ribs are further arranged on the bearing parts.
4. The new passive battery thermal runaway management device of claim 3, wherein: the number of the reinforcing ribs is a plurality; the reinforcing ribs are arranged on the bearing member in a spaced-apart relationship.
5. The novel passive battery thermal runaway management device of any one of claims 1 to 4, wherein: the blowing plate is of a sheet structure.
6. The novel passive battery thermal runaway management device of any one of claims 1 to 4, wherein: the bearing part is fixedly connected with the blowing plate through riveting or welding or joggling or a bolt device.
7. The novel passive battery thermal runaway management device of any one of claims 1 to 4, wherein: and the blowing plate is also provided with an inert gas generator.
8. The new passive battery thermal runaway management device of claim 7, wherein: the inert gas generator comprises a first cavity for containing ignition powder and a second cavity for containing inert gas generation gunpowder; the first cavity is internally provided with a heating resistor, the first cavity is also provided with a power line for connecting an external power supply, and the power line is electrically connected with the heating resistor; the first cavity is connected with the second cavity through a connecting channel.
9. The new passive battery thermal runaway management device of claim 8, wherein: the control circuit of the inert gas generator comprises a pressure sensor, a PLC (programmable logic controller) and an indicator light; and the pressure sensor, the PLC and the indicator lamp are electrically connected in sequence.
10. The utility model provides a new energy automobile which characterized in that: comprising a novel passive battery thermal runaway management device as claimed in any one of claims 1 to 8; the novel passive battery thermal runaway management device is fixedly arranged below a chassis of the new energy automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121209753.5U CN214971360U (en) | 2021-06-01 | 2021-06-01 | Novel passive battery thermal runaway management device and new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121209753.5U CN214971360U (en) | 2021-06-01 | 2021-06-01 | Novel passive battery thermal runaway management device and new energy automobile |
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| Publication Number | Publication Date |
|---|---|
| CN214971360U true CN214971360U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121209753.5U Active CN214971360U (en) | 2021-06-01 | 2021-06-01 | Novel passive battery thermal runaway management device and new energy automobile |
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| Country | Link |
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| CN (1) | CN214971360U (en) |
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- 2021-06-01 CN CN202121209753.5U patent/CN214971360U/en active Active
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