CN214013024U - Fireproof electric vehicle lithium battery pack - Google Patents
Fireproof electric vehicle lithium battery pack Download PDFInfo
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- CN214013024U CN214013024U CN202120261583.9U CN202120261583U CN214013024U CN 214013024 U CN214013024 U CN 214013024U CN 202120261583 U CN202120261583 U CN 202120261583U CN 214013024 U CN214013024 U CN 214013024U
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- cooling
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- battery
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a fireproof electric vehicle lithium battery pack, which comprises a battery pack shell and an upper cover, wherein a battery pack main body is arranged in the upper cover, a cooling cavity is drilled on the side wall of the battery pack shell, and a continuous cooling mechanism is arranged in the cooling cavity; continuous type cooling mechanism is connected with a plurality of spliced poles including cooling box between cooling box and the battery package shell, cuts open on the lateral wall of cooling box and has link up the groove, links up the inslot and is equipped with the film, is formed with conversion chamber and cooling chamber between cooling box and the battery package shell respectively, and the intracavity of cooling is filled there is the coolant liquid, is equipped with a pair of cooling plate in the conversion intracavity, is connected with a plurality of screws between battery package shell and the upper cover. The utility model discloses a setting of corresponding mechanism in the lithium cell package has improved the heat transfer effect of lithium cell package cooling body for lithium cell monomer in the lithium cell package can obtain effectual cooling, has reduced the explosion probability on fire that the lithium cell package exists because of the high temperature, has reduced the potential safety hazard of lithium cell package.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell package, concretely relates to fire prevention type electric motor car lithium cell package.
Background
The battery refers to a device which can convert chemical energy into electric energy and is a part of space of a cup, a groove or other container or a composite container which is filled with electrolyte solution and metal electrodes to generate current, and the battery is provided with a positive electrode and a negative electrode. With the advancement of technology, batteries generally refer to small devices, such as solar cells, that can generate electrical energy. The performance parameters of the battery are mainly electromotive force, capacity, specific energy and resistance. The battery is used as an energy source, can obtain current which has stable voltage and current, is stably supplied for a long time and is slightly influenced by the outside, has simple structure, convenient carrying, simple and easy charging and discharging operation, is not influenced by the outside climate and temperature, has stable and reliable performance, and plays a great role in various aspects of modern social life.
The battery is divided into a dry battery, a lead storage battery and a lithium battery, wherein the lithium battery has the characteristics of high single battery voltage, large specific energy, long storage life (up to 10 years), good high-low temperature performance and capability of being used at-40-150 ℃, so the lithium battery is widely applied to various fields, wherein the lithium battery can also be used in the field of electric vehicles, and the lithium battery of the electric vehicle generally exists in the form of a lithium battery pack in order to increase the service mileage of the electric vehicle. The lithium battery pack is a finished battery assembled by welding a battery core, a protective plate, a battery wire, a battery nickel sheet, battery accessories, a battery box, a battery membrane and the like.
In order to reduce the explosion probability that fires that lithium cell package caused because of high temperature in the use, the producer all can set up cooling body in the inside of lithium cell package, but lithium cell cooling body generally only sets up on a certain face of lithium cell package casing, and it is poor to cause lithium cell package cooling body's heat transfer effect, and each lithium cell monomer of lithium cell package inside can not obtain effectual cooling, and the lithium cell package still can have the risk of explosion that fires, has increased the potential safety hazard of lithium cell package.
Therefore, in order to solve the technical problems, a fireproof lithium battery pack for an electric vehicle is needed.
Disclosure of Invention
An object of the utility model is to provide a fire prevention type electric motor car lithium cell package to solve among the prior art cooling body in the lithium cell package and cause the poor problem of lithium cell monomer radiating effect in the lithium cell package because of setting up on a certain face.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
a fireproof electric vehicle lithium battery pack comprises a battery pack shell and an upper cover, wherein a battery pack main body is installed in the upper cover, a cooling cavity is formed in the side wall of the battery pack shell, and a continuous cooling mechanism is arranged in the cooling cavity;
the continuous cooling mechanism comprises a cooling box, a plurality of connecting columns are connected between the cooling box and the battery pack shell, a through groove is formed in the side wall of the cooling box, a film is arranged in the through groove, a conversion cavity and a cooling cavity are formed between the cooling box and the battery pack shell respectively, cooling liquid is filled in the cooling cavity, and a pair of cooling plates are arranged in the conversion cavity.
Further, be connected with a plurality of screws between battery package shell and the upper cover, through the setting of screw, the person of facilitating the use takes out the battery package main part, is convenient for maintain the battery package main part, and the junction between battery package shell and the conversion chamber is equipped with seal ring for play sealed effect, make in external steam is difficult for entering into the battery package shell, make the battery package main part be difficult for receiving the influence of steam.
Further, a plurality of evenly distributed heat dissipation holes are drilled in a pair of side walls of the battery pack shell and correspond to the cooling plate, the heat dissipation holes penetrate through the battery pack shell, the temperature of the cooling plate is convenient to reduce, the temperature of the cooling plate is not easy to rise, and therefore the cooling effect of the cooling plate on the hot steam of the cooling liquid and the liquefaction of the hot steam of the cooling liquid are guaranteed.
Further, be equipped with filter screen in the louvre, filter screen is 100 meshes for external impurity is difficult for the adhesion on cooling plate surface, thereby can guarantee the cooling effect of cooling plate, reduces the holistic temperature of cooling plate.
Further, be connected with on the battery package shell and annotate the liquid pipe, annotate the liquid pipe and link up battery package shell and cooling box setting, the cooling chamber is linked together through annotating the liquid pipe with the external world, is convenient for to the change or the replenishment of coolant liquid, guarantees the cooling effect of coolant liquid to the temperature in the battery package shell, annotate and install the end cap on the liquid pipe for plug up and annotate the liquid pipe, make the coolant liquid difficult for leaking.
Further, install the check valve on the cooling box, the downside of battery package main part is located to the check valve, is convenient for to lead in the cooling intracavity again with the liquefied coolant liquid of conversion intracavity to can last the replenishment to the coolant liquid of cooling intracavity, guarantee the cooling effect of coolant liquid, the check valve leads to for the one-way of conversion chamber to cooling chamber.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a setting of corresponding mechanism in the lithium cell package has improved the heat transfer effect of lithium cell package cooling body for lithium cell monomer in the lithium cell package can obtain effectual cooling, has reduced the explosion probability on fire that the lithium cell package exists because of the high temperature, has reduced the potential safety hazard of lithium cell package.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front sectional view of a lithium battery pack for a fire-proof electric vehicle according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1 according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of the structure shown at B in FIG. 1 according to an embodiment of the present disclosure;
FIG. 4 is a right sectional view of a lithium battery pack of a fire-resistant electric vehicle according to an embodiment of the present application;
FIG. 5 is a schematic diagram of the structure shown at C in FIG. 4 according to an embodiment of the present application;
fig. 6 is a perspective view of a fireproof lithium battery pack for an electric vehicle according to an embodiment of the present application.
In the figure: 1. the battery pack comprises a battery pack shell, 101, an upper cover, 102, a conversion cavity, 103, a cooling cavity, 104, a heat dissipation hole, 105, a liquid injection pipe, 2, a battery pack body, 3, a continuous cooling mechanism, 301, a cooling box, 302, a connecting column, 303, a film, 304, cooling liquid, 305, a cooling plate and 306, and a one-way valve.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
The utility model discloses a fire prevention type electric motor car lithium cell package, it is shown with reference to fig. 1-6, include battery package shell 1, locate battery package main part 2 in the battery package shell 1 and be used for the refrigerated type cooling mechanism 3 that lasts of battery package main part 2 cooling.
Referring to fig. 1 to 5, a battery pack case 1 is made of metal, a battery pack main body 2 is installed in the battery pack case 1, a plurality of screws are connected between the battery pack case 1 and an upper cover 101, the battery pack main body 2 is convenient for a user to take out the battery pack main body 2 by the arrangement of the screws, the battery pack main body 2 is convenient to maintain, a sealing washer is arranged at a joint between the battery pack case 1 and a conversion cavity 102 to achieve a sealing effect, so that external water vapor is not easy to enter the battery pack case 1, the battery pack main body 2 is not easy to be affected by the water vapor, a plurality of heat dissipation holes 104 are uniformly distributed on a pair of side walls of the battery pack case 1, the heat dissipation holes 104 are arranged corresponding to a cooling plate 305, the heat dissipation holes 104 are arranged to penetrate through the battery pack case 1 to facilitate the reduction of the temperature of the cooling plate 305, so that the temperature of the cooling plate 305 is not easy to rise too high, thereby ensuring the cooling effect of the cooling plate 305 on the hot vapor of a cooling liquid 304, facilitating the liquefaction of the hot vapor of the cooling fluid 304.
Wherein, be equipped with filter screen in the louvre 104, filter screen is 100 meshes for external impurity is difficult for the adhesion on cooling plate 305 surface, thereby can guarantee cooling plate 305's cooling effect, reduces the holistic temperature of cooling plate 305.
Specifically, be connected with on the battery package shell 1 and annotate liquid pipe 105, annotate liquid pipe 105 and link up battery package shell 1 and cooling box 301 setting, cooling chamber 103 is linked together with the external world through annotating liquid pipe 105, is convenient for to the change or the replenishment of coolant liquid 304, guarantees the cooling effect of coolant liquid 304 to temperature in the battery package shell 1, annotates and installs the end cap on the liquid pipe 105 for plug up and annotate liquid pipe 105, make coolant liquid 304 be difficult for leaking.
Referring to fig. 1 to 5, a cooling cavity is formed on a side wall of a battery pack case 1 for installing a continuous cooling mechanism 3, the continuous cooling mechanism 3 is disposed in the cooling cavity for continuously cooling a battery pack body 2 in the battery pack case 1 to ensure an operating temperature of the battery pack body 2, so that the temperature of the battery pack body 2 is not easily raised too high, and a probability of fire and explosion of the battery pack body 2 due to an excessively high temperature is reduced, the continuous cooling mechanism 3 includes a cooling box 301, a plurality of connecting columns 302 are connected between the cooling box 301 and the battery pack case 1, the connecting columns 302 penetrate through the cooling box 301 and are connected with an inner wall of the cooling cavity to ensure a connection stability of the cooling box 301, a penetrating groove is formed on the side wall of the cooling box 301 for installing a film 303, the film 303 is disposed in the penetrating groove, the film 303 is dupont paper, and the dupont paper has a one-way water locking effect, the hot vapor of the cooling liquid 304 can pass through the film 303, and the liquid cooling liquid 304 cannot pass through the film 303, so that the water locking purpose of the cooling liquid 304 is ensured.
Referring to fig. 1-5, a conversion cavity 102 and a cooling cavity 103 are respectively formed between the cooling box 301 and the battery pack case 1, the conversion cavity 102 is used for converting the hot vapor of the cooling liquid 304, so that the hot vapor of the cooling liquid 304 is liquefied again, the cooling cavity 103 is used for cooling the battery pack case 1, so as to reduce the temperature of the battery pack main body 2, the cooling cavity 103 is filled with the cooling liquid 304, the cooling liquid 304 is used for reducing the temperature of the battery pack main body 2, so that the battery pack main body 2 is not easy to have the risk of fire and explosion due to too high temperature, the cooling liquid 304 can be acetic acid, ethanol or water, preferably, in the utility model, the cooling liquid 304 is alcohol, the boiling point of the alcohol is low, and is easy to vaporize, when the cooling liquid 304 vaporizes, a part of the heat can be taken away, so that the purpose of cooling the battery pack case 1 can be achieved, and a cooling plate 305 is arranged in the conversion cavity 102, the cooling plate 305 is used to liquefy the hot vapor of the cooling liquid 304 so that the hot vapor of the cooling liquid 304 becomes liquid again.
Specifically, install check valve 306 on the cooling box 301, check valve 306 locates the downside of battery package main part 2, is convenient for with the liquefaction coolant liquid 304 in the conversion chamber 102 reintroduce to in the cooling chamber 103 to can continuously supply the coolant liquid 304 in the cooling chamber 103, guarantee the cooling effect of cooling liquid 304, check valve 306 leads to for the one-way of conversion chamber 102 to cooling chamber 103.
When the temperature in the battery pack main body 2 is increased, the battery pack shell 1 is made of metal, the battery pack shell 1 absorbs heat emitted by the battery pack main body 2, the battery pack shell 1 is heated due to heat absorption, the cooling liquid 304 is also increased along with the temperature increase of the battery pack shell 1 due to the direct contact of the cooling liquid 304 and the battery pack shell 1, when the temperature absorbed by the cooling liquid 304 reaches the boiling point of the cooling liquid 304, the cooling liquid 304 starts to vaporize, the vaporized cooling liquid 304 can take away part of the heat, the hot vapor of the cooling liquid 304 enters the conversion cavity 102 through the film 303, meets the cooler cooling plate 305 in the conversion cavity 102, the hot vapor of the cooling liquid 304 is liquefied and changed into liquid again, when the liquid pressure of the cooling liquid 304 in the conversion cavity 102 is greater than the pressure of the cooling liquid 304 in the cooling cavity 103, the cooling liquid 304 in the conversion cavity 102 enters the cooling cavity 103 through the one-way valve 306, supply cooling liquid 304 in cooling chamber 103 to can guarantee the cooling liquid 304 and to the cooling effect that lasts of battery package shell 1, make the difficult too high that rises of temperature of battery package main part 2, and then can guarantee the operational environment of battery package main part 2, make the difficult explosion that takes place to catch fire because of high temperature of battery package main part 2.
According to the technical scheme provided by the utility model, the utility model discloses following beneficial effect has:
the utility model discloses a setting of corresponding mechanism in the lithium cell package has improved the heat transfer effect of lithium cell package cooling body for lithium cell monomer in the lithium cell package can obtain effectual cooling, has reduced the explosion probability on fire that the lithium cell package exists because of the high temperature, has reduced the potential safety hazard of lithium cell package.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A fireproof electric vehicle lithium battery pack comprises a battery pack shell and an upper cover and is characterized in that a battery pack main body is installed in the battery pack shell, a cooling cavity is formed in the side wall of the battery pack shell, and a continuous cooling mechanism is arranged in the cooling cavity;
the continuous cooling mechanism comprises a cooling box, a plurality of connecting columns are connected between the cooling box and the battery pack shell, a through groove is formed in the side wall of the cooling box, a film is arranged in the through groove, a conversion cavity and a cooling cavity are formed between the cooling box and the battery pack shell respectively, cooling liquid is filled in the cooling cavity, and a pair of cooling plates are arranged in the conversion cavity.
2. The fireproof electric vehicle lithium battery pack according to claim 1, wherein a plurality of screws are connected between the battery pack shell and the upper cover.
3. The fireproof electric vehicle lithium battery pack according to claim 1, wherein a pair of side walls of the battery pack case are provided with a plurality of uniformly distributed heat dissipation holes, the heat dissipation holes are arranged corresponding to the cooling plate, and the heat dissipation holes penetrate through the battery pack case.
4. The fireproof electric vehicle lithium battery pack according to claim 3, wherein a filtering screen is arranged in the heat dissipation holes, and the filtering screen is 100 meshes.
5. The fireproof electric vehicle lithium battery pack according to claim 1, wherein a liquid injection pipe is connected to the battery pack shell, the liquid injection pipe penetrates through the battery pack shell and the cooling box, the cooling cavity is communicated with the outside through the liquid injection pipe, and a plug is mounted on the liquid injection pipe.
6. The fireproof electric vehicle lithium battery pack according to claim 1, wherein a one-way valve is mounted on the cooling box and is arranged on the lower side of the battery pack main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120261583.9U CN214013024U (en) | 2021-01-29 | 2021-01-29 | Fireproof electric vehicle lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120261583.9U CN214013024U (en) | 2021-01-29 | 2021-01-29 | Fireproof electric vehicle lithium battery pack |
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| Publication Number | Publication Date |
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| CN214013024U true CN214013024U (en) | 2021-08-20 |
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| CN202120261583.9U Active CN214013024U (en) | 2021-01-29 | 2021-01-29 | Fireproof electric vehicle lithium battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530647A (en) * | 2022-01-25 | 2022-05-24 | 王昕灿 | Efficient heat dissipation device for lithium battery of electric vehicle and application method of efficient heat dissipation device |
-
2021
- 2021-01-29 CN CN202120261583.9U patent/CN214013024U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530647A (en) * | 2022-01-25 | 2022-05-24 | 王昕灿 | Efficient heat dissipation device for lithium battery of electric vehicle and application method of efficient heat dissipation device |
| CN114530647B (en) * | 2022-01-25 | 2023-08-25 | 江苏航运职业技术学院 | Efficient heat dissipation device for lithium battery of electric automobile and application method of efficient heat dissipation device |
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