CN210866429U - Immersion type liquid cooling battery module - Google Patents
Immersion type liquid cooling battery module Download PDFInfo
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- CN210866429U CN210866429U CN201921095923.4U CN201921095923U CN210866429U CN 210866429 U CN210866429 U CN 210866429U CN 201921095923 U CN201921095923 U CN 201921095923U CN 210866429 U CN210866429 U CN 210866429U
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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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Abstract
The application discloses a soaking type liquid-cooled battery module, which comprises a plurality of battery monomers, an upper confluence sheet and a lower confluence sheet; all the single batteries are uniformly distributed in a hollow battery bin, and insulating cooling liquid for soaking the single batteries is arranged in the hollow battery bin; the hollow battery compartment is composed of: the top wall and the bottom wall which are arranged in parallel and the side wall of the rectangular ring structure; the battery jack is seted up to vertical lining up on the roof, and vertical lining up sets up down the battery jack on the diapire, and the free upper end of battery is inserted in last battery jack, and the lower extreme is inserted in battery jack down and with the vertical butt of lower annular inner flange, goes up to converge the piece and pastes to lean on arranging in the last side of roof, and press from both sides between the two and be equipped with the seal, and the piece that converges is down pastes to lean on arranging in the downside of diapire, and press from both sides between the two and establish the lower seal. This kind of battery module radiating efficiency of this application is high, has improved the outstanding problem point such as corruption and weight are big that traditional immersion type liquid cooling battery system exists.
Description
Technical Field
The application relates to a battery module, especially a formula of soaking liquid cooling battery module.
Background
The power battery pack mainly comprises a battery box and a battery module contained in the battery box, is an energy core of the electric automobile, and inevitably generates heat accumulation in the operation process to cause the temperature rise of the battery. The heat management system mainly adjusts the temperature through means such as heat dissipation and the like, so that the lithium battery is in the optimal working temperature range.
The heat management modes are mainly divided into an air medium heat management system, a liquid medium heat management system and a phase-change medium heat management system. Today, the most common thermal management solutions are liquid medium thermal management solutions, and liquid medium thermal management systems are subdivided into two types, cold plate or tube and immersion. The cold plate or the pipeline type liquid cooling is used for taking heat in the battery pack out of the battery pack through liquid circularly flowing in the hollow cavity. The immersion type liquid cooling scheme is to immerse the whole battery in a special liquid and achieve the purpose of heat exchange through direct contact with the battery. The two liquid cooling modes have advantages and disadvantages, for example, the cold plate type liquid cooling has the risk of liquid leakage, and can not be in direct contact with the battery, and the existence of thermal resistance is also a great problem. Immersion liquid cooling has problems of corrosion, heavy weight, and the like.
Disclosure of Invention
The purpose of the application is: to the above problem, an immersion type liquid cooling battery module with high heat dissipation efficiency is provided, which improves the corrosion and heavy weight of the traditional immersion type liquid cooling battery system.
The technical scheme of the application is as follows:
an immersion type liquid-cooled battery module, comprising:
a plurality of battery cells arranged in parallel with each other,
an upper bus bar welded to the top end of each of the battery cells, and
the lower afflux sheet is welded and fixed with the bottom end of each battery monomer;
each single battery is uniformly distributed in a hollow battery bin with the outer contour of a cuboid structure, and insulating cooling liquid for soaking the single batteries is arranged in the hollow battery bin;
the hollow battery compartment is composed of:
top and bottom walls arranged in parallel, and
a side wall of a rectangular ring structure vertically connected between the top wall and the bottom wall;
the battery assembly structure comprises a top wall, a plurality of upper battery jacks are vertically communicated with the top wall, a circle of upper annular inner flanges protruding radially inwards is integrally arranged at the hole walls of the top ends of the upper battery jacks, a plurality of lower battery jacks are vertically communicated with the bottom wall, a circle of lower annular inner flanges protruding radially inwards is integrally arranged at the hole walls of the bottom ends of the lower battery jacks, the upper ends of battery monomers are inserted into the upper battery jacks and vertically abutted against the upper annular inner flanges, the lower ends of the battery monomers are inserted into the lower battery jacks and vertically abutted against the lower annular inner flanges, upper confluence sheets are arranged on the upper side face of the top wall in an attached mode, an upper sealing body is clamped between the upper confluence sheets and the lower confluence sheets, and the lower confluence sheets are arranged on the lower side face of the bottom wall in an attached mode, and a lower sealing body is clamped.
The side system of going up of roof has the round to undercut, and encloses to locate go up battery jack outlying last circular groove, the downside system of diapire has the round to make progress the undercut, and encloses to locate down battery jack outlying lower circular groove, the upper seal body is for inlaying and locates go up the sealing washer in the circular groove, the lower seal body is for inlaying and locates sealing washer in the circular groove down.
The sealing ring is a rubber ring.
The top wall, the bottom wall and the side wall are all made of plastic materials.
The bottom wall and the side wall are of an integral injection molding structure.
The top wall and the side wall are arranged in an abutting mode and fixedly connected through screws.
And a sealant is arranged at the joint of the top wall and the side wall.
And a liquid inlet joint and a liquid outlet joint which are communicated with the inner cavity of the battery bin are fixed on the side wall.
The liquid inlet joint and the liquid outlet joint are respectively arranged on two opposite sides of the hollow battery cabin.
The insulating cooling liquid is electronic fluoridizing liquid.
The application has the advantages that:
1. safety: according to the battery module, only the battery monomer, especially the part between the anode and cathode end faces of the battery monomer (but not the whole module) is soaked in the cooling liquid, so that direct contact between a non-battery component and the cooling liquid is avoided, and potential safety hazards of the component are reduced. And, make seal structure design at battery module, further reduced the risk of weeping. And secondly, the adopted cooling liquid is insulating liquid, and the normal operation of the whole battery pack cannot be influenced even if leakage exists.
2. The weight is light: insulating coolant liquid exists in the space between the battery monomer, and for the scheme of filling insulating coolant liquid in whole battery package inside, the quantity of this application insulating coolant liquid is less.
3. The heat exchange efficiency is high: all the battery monomers except the end surfaces of the positive electrode and the negative electrode are completely immersed in the cooling liquid, the heat exchange coefficient is high, and the heat exchange efficiency is further improved by the circulating design of the cooling liquid.
4. The temperature uniformity is high: all the battery monomers in the module are soaked in the mutually connected liquid cooling working media, so that the temperature uniformity is good.
5. The process performance is good: a plurality of such battery modules of the present application can be freely assembled with each other according to the required power supply amount.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic external structural view of a battery module according to an embodiment of the present application;
fig. 2 is an exploded schematic view of a battery module according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a top wall in an embodiment of the present application;
FIG. 4 is a schematic structural view of another perspective of the top wall in an embodiment of the present application;
wherein: 1-single battery, 2-top wall, 201-upper battery jack, 201 a-upper annular inner flange, 202-upper annular groove, 3-bottom wall, 4-side wall, 5-upper confluence sheet, 6-lower confluence sheet, 7-liquid inlet joint, 8-liquid outlet joint and 9-sealing ring.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. The present application may be embodied in many different forms and is not limited to the embodiments described in the present embodiment. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, and the words used to indicate orientation, top, bottom, left, right, etc. are used solely to describe the illustrated structure in connection with the accompanying figures.
One skilled in the relevant art will recognize, however, that one or more of the specific details can be omitted, or other methods, components, or materials can be used. In some instances, some embodiments are not described or not described in detail.
Furthermore, the technical features, aspects or characteristics described herein may be combined in any suitable manner in one or more embodiments. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Thus, any sequence in the figures and examples is for illustrative purposes only and does not imply a requirement in a certain order unless explicitly stated to require a certain order.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
Fig. 1 to 4 show a preferred embodiment of the immersion liquid-cooled battery module according to the present application, which, like some conventional battery modules, also comprises a plurality of battery cells 1, which are of cylindrical configuration and are arranged parallel to one another in a matrix. The top ends of the battery cells 1 are welded and fixed with an upper bus bar 5, and the bottom ends are welded and fixed with a lower bus bar 6. Specifically, the top end of each battery cell 1 is a positive terminal, and the bottom end is a negative terminal, so the upper bus bar 5 is a positive bus bar, and the lower bus bar 6 is a negative bus bar. The upper and lower bus bars connect the battery cells 1 in parallel.
The key improvement of this embodiment lies in that above-mentioned each battery monomer 1 equipartition is arranged in a hollow battery storehouse that the outline is cuboid structure, is equipped with the insulating coolant liquid that soaks each battery monomer 1 in this hollow battery storehouse. Therefore, the insulating cooling liquid is utilized to absorb the heat of the battery monomer, and the problem of thermal runaway caused by overhigh temperature of the battery monomer is prevented.
The hollow battery compartment is composed of:
a top wall 2 and a bottom wall 3 arranged in parallel, an
And side walls 4 of rectangular ring configuration connected perpendicularly between the top and bottom walls.
A plurality of upper battery jacks 201 are vertically arranged on the top wall 2 in a through manner, and a circle of upper annular inner flanges 201a protruding radially inwards is integrally arranged on the hole wall at the top ends of the upper battery jacks. The structure of the bottom wall 3 is completely stacked with the structure of the top wall 2, in particular: a plurality of lower battery jacks are vertically arranged on the bottom wall 3 in a through mode, and a circle of lower annular inner flange protruding inwards in the radial direction is integrally arranged on the hole wall at the bottom end of each lower battery jack. The upper end of the single battery 1 is inserted into the upper battery insertion hole 201 and vertically abuts against the upper annular inner flange 201a, and the lower end of the single battery 1 is inserted into the lower battery insertion hole and vertically abuts against the lower annular inner flange. Namely, the upper and lower ends of the battery cell 1 are respectively inserted into the upper battery insertion hole of the top wall 2 and the lower battery insertion hole of the bottom wall 3, and are axially clamped between the upper annular inner flange and the lower annular inner flange. The upper and lower annular inner flanges axially limit the single battery body 1, and the single battery body 1 is prevented from penetrating out of the upper and lower battery jacks. The upper bus bar 5 and the lower bus bar 6 are uniformly distributed outside the hollow battery compartment, wherein the upper bus bar 5 is attached to the upper side surface of the top wall 2, and the lower bus bar 6 is attached to the lower side surface of the bottom wall 3.
In order to prevent the insulating cooling liquid in the hollow battery compartment from overflowing from the gap between the upper battery jack or the lower battery jack, an upper sealing body is clamped between the upper bus sheet 5 and the top wall 2, and a lower sealing body is clamped between the lower bus sheet 6 and the bottom wall 3.
Specifically, the upper side of roof 2 has the round to undercut, and encloses and locate battery jack 201 outlying last annular groove 202, and the downside system of diapire has the round to undercut, and encloses and locate battery jack outlying lower annular groove down, and aforementioned upper seal body is for inlaying the sealing washer 9 of the rubber material of locating in last annular groove 202, and the lower seal body is for inlaying the sealing washer of the rubber material of locating in the lower annular groove.
When the sealing ring 9 is embedded in the upper circular groove 202 in a natural state, the top of the sealing ring 9 is higher than the upper surface of the top wall 2 by a certain distance, and the sealing ring 9 is pressed to collapse downwards and is flush with the upper surface of the top wall 2 under the action of the downward pressure of the confluence sheet 5. The sealing ring at the bottom wall adopts the same structure form as the structure form.
In this embodiment, the top wall 2, the bottom wall 3 and the side wall 4 are made of insulating plastic, that is, the hollow battery compartment is made of plastic. And diapire 3 and lateral wall 4 are whole injection moulding structure (both formula structure as an organic whole), and roof 2 and lateral wall 4 support to lean on to arrange and cross screw fastening connection, for promoting the leakproofness of roof 2 and lateral wall 3 butt department in order to prevent the coolant liquid leakage, sealed glue has been set up at the butt department of roof 2 and lateral wall 4 to this embodiment.
In addition, because the temperature of the insulating cooling liquid rises to a dangerous value after absorbing enough heat, the liquid inlet joint 7 and the liquid outlet joint 8 which are communicated with the inner cavity of the hollow battery compartment are fixedly arranged on the side wall 4, so that the insulating cooling liquid can be circularly conveyed into the hollow battery compartment by connecting the liquid inlet joint 7 and the liquid outlet joint 8 with an insulating liquid supply system. And, the aforementioned liquid inlet joint 7 and liquid outlet joint 8 are respectively disposed on two opposite sides (left and right sides) of the hollow battery compartment. The insulating cooling liquid in this embodiment is an electron fluoride liquid.
The above embodiments are only for illustrating the technical concepts and features of the present application, and the purpose of the embodiments is to enable people to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.
Claims (10)
1. An immersion type liquid-cooled battery module, comprising:
a plurality of battery cells (1) arranged parallel to each other,
an upper bus bar (5) welded and fixed to the top end of each of the battery cells, and
the lower afflux sheet (6) is fixedly welded with the bottom end of each battery monomer;
the battery is characterized in that each single battery (1) is uniformly distributed in a hollow battery bin with the outer contour of a cuboid structure, and insulating cooling liquid for soaking the single batteries (1) is arranged in the hollow battery bin;
the hollow battery compartment is composed of:
a top wall (2) and a bottom wall (3) arranged in parallel, and
a side wall (4) of a rectangular ring structure connected perpendicularly between said top wall and said bottom wall;
the battery structure is characterized in that a plurality of upper battery jacks (201) are vertically arranged on the top wall (2) in a through mode, a circle of upper annular inner flanges (201a) protruding radially inwards are integrally arranged at the hole walls at the tops of the upper battery jacks, a plurality of lower battery jacks are vertically arranged on the bottom wall (3) in a through mode, a circle of lower annular inner flanges protruding radially inwards are integrally arranged at the hole walls at the bottoms of the lower battery jacks, the upper ends of battery monomers (1) are inserted into the upper battery jacks (201) and vertically abutted against the upper annular inner flanges (201a), the lower ends of the battery monomers (1) are inserted into the lower battery jacks and vertically abutted against the lower annular inner flanges, upper current collection sheets (5) are arranged on the upper side face of the top wall (2) in an abutting mode, an upper sealing body is arranged between the upper current collection sheets and the lower sealing body, and lower current collection sheets (6) are arranged on the lower side face of the bottom wall (3, And a lower sealing body is clamped between the two.
2. The submerged liquid-cooled battery module as claimed in claim 1, wherein a circle of upper circular groove (202) recessed downward and surrounding the periphery of the upper battery jack (201) is formed on the upper side surface of the top wall (2), a circle of lower circular groove recessed upward and surrounding the periphery of the lower battery jack is formed on the lower side surface of the bottom wall, the upper sealing body is a sealing ring (9) embedded in the upper circular groove (202), and the lower sealing body is a sealing ring embedded in the lower circular groove.
3. The flooded liquid cooled battery module of claim 2, wherein the seal (9) is a rubber ring.
4. The flooded liquid cooled battery module of claim 1, wherein the top wall (2), the bottom wall (3) and the side walls (4) are all of a plastic material.
5. The flooded liquid cooled battery module of claim 4, wherein the bottom wall (3) and the side walls (4) are of unitary injection molded construction.
6. The flooded liquid cooled battery module of claim 5, wherein the top wall (2) and the side walls (4) are arranged against each other and are fixedly connected by screws.
7. The immersed liquid-cooled battery module as claimed in claim 6, wherein a sealant is disposed at the abutting position of the top wall (2) and the side wall (4).
8. The immersion type liquid-cooled battery module according to claim 1, wherein the side wall (4) is fixed with a liquid inlet joint (7) and a liquid outlet joint (8) which are communicated with the inner cavity of the battery chamber.
9. The immersed liquid-cooled battery module according to claim 8, wherein the inlet connector (7) and the outlet connector (8) are respectively disposed on two opposite sides of the hollow battery compartment.
10. The immersed liquid-cooled battery module as recited in claim 1, wherein the insulating coolant is an electronic fluorinated liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921095923.4U CN210866429U (en) | 2019-07-12 | 2019-07-12 | Immersion type liquid cooling battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921095923.4U CN210866429U (en) | 2019-07-12 | 2019-07-12 | Immersion type liquid cooling battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210866429U true CN210866429U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921095923.4U Expired - Fee Related CN210866429U (en) | 2019-07-12 | 2019-07-12 | Immersion type liquid cooling battery module |
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| Country | Link |
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| CN (1) | CN210866429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331995A (en) * | 2020-12-04 | 2021-02-05 | 湖南电将军新能源有限公司 | High-power lithium battery and preparation method thereof |
| FR3129530A1 (en) | 2021-11-23 | 2023-05-26 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Enclosure for battery module or battery pack, with sealed membrane intended to allow circulation of a heat transfer fluid within it for optimal cooling of the accumulators of the module or pack, leaving the output terminals unobstructed. |
-
2019
- 2019-07-12 CN CN201921095923.4U patent/CN210866429U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331995A (en) * | 2020-12-04 | 2021-02-05 | 湖南电将军新能源有限公司 | High-power lithium battery and preparation method thereof |
| FR3129530A1 (en) | 2021-11-23 | 2023-05-26 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Enclosure for battery module or battery pack, with sealed membrane intended to allow circulation of a heat transfer fluid within it for optimal cooling of the accumulators of the module or pack, leaving the output terminals unobstructed. |
| EP4199190A2 (en) | 2021-11-23 | 2023-06-21 | Commissariat à l'énergie atomique et aux énergies alternatives | Enclosure for a battery module or battery pack, with a sealed membrane for allowing a circulation of a heat transfer fluid therein for optimal cooling of the module or pack batteries. |
| EP4199190A3 (en) * | 2021-11-23 | 2023-07-19 | Commissariat à l'énergie atomique et aux énergies alternatives | Enclosure for a battery module or battery pack, with a sealed membrane for allowing a circulation of a heat transfer fluid therein for optimal cooling of the module or pack batteries. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |