CN219832789U - Liquid cooling device for lithium battery module - Google Patents
Liquid cooling device for lithium battery module Download PDFInfo
- Publication number
- CN219832789U CN219832789U CN202321179067.7U CN202321179067U CN219832789U CN 219832789 U CN219832789 U CN 219832789U CN 202321179067 U CN202321179067 U CN 202321179067U CN 219832789 U CN219832789 U CN 219832789U
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- liquid
- cavity
- lithium
- liquid cooling
- 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.)
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 102
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 title claims abstract description 35
- 239000000110 cooling liquid Substances 0.000 claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 210000005056 cell body Anatomy 0.000 claims description 33
- 239000002826 coolant Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000012856 packing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 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
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- Secondary Cells (AREA)
Abstract
The utility model discloses a liquid cooling device of a lithium battery module, which relates to the technical field of liquid cooling of lithium batteries and comprises a battery compartment and a sealing cover which is covered on the top of the battery compartment, wherein liquid inlet pipes and liquid outlet pipes which are connected with a circulating pump are respectively arranged at the side walls of two sides of the battery compartment, a cavity which is communicated with the top of the battery compartment is formed in the battery compartment, nonconductive cooling liquid is filled in the cavity, a group of partition plates are arranged at the inner wall of the cavity at equal intervals, a plurality of through openings are formed in the surfaces of the partition plates at equal intervals, and a lithium battery body is embedded in the through openings on the surfaces of the partition plates. The utility model is convenient for avoiding leakage or corrosion of the non-conductive cooling liquid at the wiring end and the sealing end of the lithium battery body, thereby avoiding damage to the lithium battery body caused by corrosion of the non-conductive cooling liquid into the lithium battery body, and improving the operation stability of the lithium battery body while ensuring liquid cooling and heat dissipation of the lithium battery body.
Description
Technical Field
The utility model relates to the technical field of lithium battery liquid cooling, in particular to a lithium battery module liquid cooling device.
Background
The lithium battery module is an integral energy storage module formed by assembling and connecting a plurality of lithium batteries, and the lithium batteries are batteries which use lithium metal or lithium alloy as positive/negative electrode materials and nonaqueous electrolyte solution.
The existing cooling technology for the lithium battery module is mainly divided into air cooling heat dissipation and liquid cooling heat dissipation. The air cooling and heat dissipation are equivalent to adding an air conditioner to the battery compartment, and the discharged cold air is used for reducing the ambient temperature in the compartment, so that the temperature of the heating battery is reduced. The liquid cooling heat dissipation is mostly to surround a pipe containing a circulating cooling liquid around a battery, cool the contact portion of the battery, and gradually transfer the cooled battery to other portions. The liquid cooling heat dissipation also has a mode of directly immersing the lithium battery in the non-conductive cooling liquid in the container cabin to realize direct, rapid and full cooling of the battery.
The immersion liquid cooling is a novel lithium battery cooling technology, based on the principle of thermal interference, a lithium battery module is immersed in liquid with high heat conductivity, and heat inside the battery is dissipated through conduction and convection, so that the cooling effect is achieved. However, the existing immersed liquid cooling technology needs to use non-conductive cooling liquid as a cooling medium, and the lithium battery is wholly immersed in the non-conductive cooling liquid, and because the wiring end of the lithium battery needs to be connected with a cable, the sealing end of the lithium battery is a sealing opening for installing internal components, the problem that leakage or corrosion of the non-conductive cooling liquid occurs in the long-term use process, and further the non-conductive cooling liquid is corroded into the lithium battery to damage the lithium battery, so that the operation stability of the lithium battery in liquid cooling and heat dissipation is affected.
Disclosure of Invention
The utility model provides a liquid cooling device for a lithium battery module, aiming at the technical problems existing in the liquid cooling application of the existing lithium battery module.
The utility model provides a lithium battery module liquid cooling device, includes battery compartment and lid and locates the sealed lid at battery compartment top, both sides lateral wall department in battery compartment is provided with feed liquor pipe and the drain pipe of connecting the circulating pump respectively, and the cavity at intercommunication battery compartment top has been seted up to the inside in battery compartment, annotate in the cavity has non-conductive coolant liquid, the inner wall department equidistance of cavity is provided with a set of baffle, a set of a plurality of through-holes have been seted up to the surface equidistance of baffle, and the through-hole on baffle surface is embedded to be equipped with lithium cell body, the top wiring end and the closing cap end of lithium cell body are located the upper horizontal position department of baffle, the interior bottom wall department equidistance distribution in cavity is provided with a plurality of supporting mechanism that are used for settling lithium cell body.
Further, the level of the partition plate is higher than the liquid level of the non-conductive cooling liquid filled in the cavity.
Further, a sealing rubber ring is arranged at the joint of the through hole formed in the surface of the partition plate and the lithium battery body, the sealing rubber ring is wrapped around the lithium battery body, and the side wall of the sealing rubber ring is respectively adhered to the surfaces of the lithium battery body and the partition plate.
Further, a distance is arranged between adjacent groups of lithium battery bodies.
Further, the supporting mechanism comprises a group of supporting rods and a group of supporting blocks, wherein the supporting rods are respectively arranged at the inner bottom wall of the two sides of the cavity close to the lithium battery body, the supporting blocks are respectively arranged at one end of the group of supporting rods, the supporting blocks are arranged in an L shape, the supporting blocks are respectively abutted to the bottom positions of the two sides of the lithium battery body, and one end of each supporting block is clamped at the side wall of the lithium battery body.
The utility model has the beneficial effects that:
1. through inlay the lithium cell body and establish in the through-hole of seting up on the baffle, and then settle the lithium cell body through branch and supporting shoe cooperation, the settling position of firm lithium cell body of being convenient for, avoid taking place the position offset in the operation process of lithium cell body, and then through the auxiliary cooperation of a set of baffle and sealed rubber ring, be convenient for play double-deck isolated effect, avoid leaking of non-conductive coolant liquid in the cavity, and then through arranging the direct submergence of one end of lithium cell body in non-conductive coolant liquid and play efficient radiating effect, and make the wiring end and the closing cap end of lithium cell body expose the setting above the liquid level of non-conductive coolant liquid, be convenient for in long-term use, avoid terminal and the closing cap end of lithium cell body to take place to reveal or suffer the corruption of non-conductive coolant liquid, and then avoid non-conductive coolant liquid erosion to advance the harm that lithium cell body inside caused, be convenient for guaranteeing to carry out liquid cooling to the lithium cell body in order to improve the operating stability of lithium cell body.
2. The lithium battery body is erected through the cooperation of the supporting rod and the supporting block, a space exists between the bottom of the lithium battery body and the inner bottom wall of the cavity, a space is further arranged between a group of adjacent lithium battery bodies, the lithium battery bodies are convenient to arrange and do not closely contact, liquid cooling operation is further conducted in the cavity through circulating pump driving liquid inlet pipes and liquid outlet pipes for circulating diversion non-conductive cooling liquid, the space between the lithium battery bodies and the erection of the bottom are further conducted, the contact area is increased, circulation of the non-conductive cooling liquid and full contact heat exchange with the peripheral wall of the lithium battery body are facilitated, and the liquid cooling radiating effect on the lithium battery body is improved.
Drawings
Fig. 1 is a perspective view of a battery compartment.
Fig. 2 is a cross-sectional view of the battery compartment.
Fig. 3 is a cross-sectional view of a separator.
Reference numerals
1. A battery compartment; 2. sealing cover; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a cavity; 6. a non-conductive cooling fluid; 7. a partition plate; 8. a lithium battery body; 9. a support mechanism; 91. a support rod; 92. a support block; 10. and (5) sealing the rubber ring.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Examples
The utility model provides a lithium battery module liquid cooling device, locates sealed lid 2 at battery compartment 1 top including battery compartment 1 and lid, battery compartment 1 both sides lateral wall department is provided with feed liquor pipe 3 and drain pipe 4 of connecting the circulating pump respectively, and battery compartment 1's inside has been seted up cavity 5 at intercommunication battery compartment 1 top, annotates in the cavity 5 and has non-electrically conductive coolant liquid 6, carries out the liquid cooling operation in the cavity 5 through circulating pump drive feed liquor pipe 3 and drain pipe 4 circulation water conservancy diversion non-electrically conductive coolant liquid 6, references fig. 1, fig. 2.
A group of partition plates 7 are arranged at the inner wall of the cavity 5 at equal intervals, and the horizontal height of the partition plates 7 is higher than the liquid level height of the non-conductive cooling liquid 6 filled in the cavity 5. A plurality of through openings are formed in the surface of the group of partition plates 7 at equal intervals, and a lithium battery body 8 is embedded in the through openings in the surface of the partition plates 7. The junction of opening and the lithium cell body 8 that baffle 7 surface was seted up is provided with sealed packing follower 10, and sealed packing follower 10 wraps up in and establishes around lithium cell body 8, and sealed packing follower 10's lateral wall bonds with lithium cell body 8 and baffle 7 surface respectively, and sealed packing follower 10's material is rubber. Through inlay lithium cell body 8 establish in the opening of seting up on baffle 7, and then through the supplementary cooperation of a set of baffle 7 and sealed rubber ring 10, be convenient for play the isolated effect of double-deck seal, avoid the interior non-conductive cooling liquid 6 of cavity 5 to leak, and then through arranging the direct submergence of one end of lithium cell body 8 in non-conductive cooling liquid 6 in play efficient radiating effect, refer to fig. 1, fig. 2.
The top terminal and the cap end of the lithium battery body 8 are located at a position horizontally above the separator 7. Through making the wiring end and the closing cap end of lithium cell body 8 expose the liquid level height of non-conductive cooling liquid 6 above setting, be convenient for in long-term use, avoid terminal and the closing cap end of lithium cell body 8 to take place to reveal or suffer the corruption of non-conductive cooling liquid 6, and then avoid non-conductive cooling liquid 6 to corrode into the inside harm that causes of lithium cell body 8 to lithium cell body 8, be convenient for when guaranteeing to carry out the liquid cooling heat dissipation to lithium cell body 8 to improve the running stability of lithium cell body 8, refer to fig. 1, fig. 2.
The inner bottom wall of the cavity 5 is equidistantly provided with a plurality of supporting mechanisms 9 for arranging the lithium battery body 8, each supporting mechanism 9 comprises a group of supporting rods 91 and a group of supporting blocks 92, the group of supporting rods 91 are respectively arranged at two inner bottom walls of the cavity 5, which are close to the lithium battery body 8, the group of supporting blocks 92 are respectively arranged at one ends of the group of supporting rods 91, the supporting blocks 92 are arranged into L shapes, the group of supporting blocks 92 are respectively abutted at two bottom positions of the lithium battery body 8, and one ends of the supporting blocks 92 are clamped at the side walls of the lithium battery body 8. The lithium battery body 8 is matched with the supporting blocks 92 through the supporting rods 91, so that the placement position of the lithium battery body 8 is convenient to stabilize, and position deviation in the operation process of the lithium battery body 8 is avoided. And the lithium battery body 8 is erected through the cooperation of the supporting rods 91 and the supporting blocks 92, so that a space exists between the bottom of the lithium battery body 8 and the inner bottom wall of the cavity 5, and the lithium battery is characterized in that the space is referred to as fig. 2 and 3.
Be equipped with the interval between a set of adjacent lithium cell body 8, and then be equipped with the interval between a set of lithium cell body 8 through the adjacent, be convenient for make the non-intimate contact of arranging of lithium cell body 8, and then circulate the non-conductive coolant liquid 6 of water conservancy diversion through circulating pump drive feed liquor pipe 3 and drain pipe 4 and carry out the liquid cooling operation in to cavity 5, and erect through interval and the bottom between multiunit lithium cell body 8, with increase area of contact, the circulation of the non-conductive coolant liquid 6 of being convenient for and the abundant contact heat transfer with lithium cell body 8 perisporium, be convenient for improve the liquid cooling radiating effect that plays lithium cell body 8, refer to fig. 2, fig. 3.
It will be apparent to those skilled in the art that the described embodiments are merely some, but not all, of the embodiments of the utility model and that various modifications or additions may be made to the specific embodiments described or substituted in a similar way without deviating from the spirit of the utility model or beyond the scope of the utility model as defined in the appended claims. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model.
Claims (5)
1. The utility model provides a lithium battery module liquid cooling device, locates sealed lid (2) at battery compartment (1) top including battery compartment (1) and lid, both sides lateral wall department in battery compartment (1) is provided with feed liquor pipe (3) and drain pipe (4) of connecting the circulating pump respectively, and cavity (5) at intercommunication battery compartment (1) top have been seted up to the inside in battery compartment (1), annotate in cavity (5) has non-electrically conductive coolant liquid (6), a serial communication port, the inner wall department equidistance of cavity (5) is provided with a set of baffle (7), a set of a plurality of through openings have been seted up to the surface equidistance of baffle (7), and the through opening on baffle (7) surface is embedded to be equipped with lithium cell body (8), the top and the closing cap end of lithium cell body (8) are located the horizontal top position department of baffle (7), the interior bottom wall department equidistance distribution in cavity (5) is provided with a plurality of supporting mechanism (9) that are used for settling lithium cell body (8).
2. The liquid cooling device for the lithium battery module according to claim 1, wherein the level of the partition plate (7) is higher than the level of the non-conductive cooling liquid (6) injected into the cavity (5).
3. The liquid cooling device of the lithium battery module according to claim 2, wherein a sealing rubber ring (10) is arranged at the joint of a through hole formed in the surface of the partition plate (7) and the lithium battery body (8), the sealing rubber ring (10) is wrapped around the lithium battery body (8), and the side walls of the sealing rubber ring (10) are respectively adhered to the surfaces of the lithium battery body (8) and the partition plate (7).
4. The liquid cooling device for a lithium battery module according to claim 1, wherein a space is provided between adjacent groups of the lithium battery bodies (8).
5. The liquid cooling device for the lithium battery module according to claim 1, wherein the supporting mechanism (9) comprises a group of supporting rods (91) and a group of supporting blocks (92), the group of supporting rods (91) are respectively arranged at inner bottom walls of two sides of the cavity (5) close to the lithium battery body (8), the group of supporting blocks (92) are respectively arranged at one ends of the group of supporting rods (91), the supporting blocks (92) are in an L shape, the group of supporting blocks (92) are respectively abutted to bottom positions of two sides of the lithium battery body (8), and one ends of the supporting blocks (92) are clamped at the side walls of the lithium battery body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321179067.7U CN219832789U (en) | 2023-05-16 | 2023-05-16 | Liquid cooling device for lithium battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321179067.7U CN219832789U (en) | 2023-05-16 | 2023-05-16 | Liquid cooling device for lithium battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219832789U true CN219832789U (en) | 2023-10-13 |
Family
ID=88249548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321179067.7U Active CN219832789U (en) | 2023-05-16 | 2023-05-16 | Liquid cooling device for lithium battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219832789U (en) |
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2023
- 2023-05-16 CN CN202321179067.7U patent/CN219832789U/en active Active
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