CN219303761U - Crossing type liquid cooling runner system and battery pack - Google Patents
Crossing type liquid cooling runner system and battery pack Download PDFInfo
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- CN219303761U CN219303761U CN202223303091.5U CN202223303091U CN219303761U CN 219303761 U CN219303761 U CN 219303761U CN 202223303091 U CN202223303091 U CN 202223303091U CN 219303761 U CN219303761 U CN 219303761U
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- 239000007788 liquid Substances 0.000 title claims abstract description 72
- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 238000005219 brazing Methods 0.000 claims description 6
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to the field of power batteries, in particular to a spanned liquid cooling runner system and a battery pack, wherein the spanned liquid cooling runner system comprises a first panel, an inlet section, an outlet section and at least two runners are arranged on the first panel, a second panel which covers the first panel is arranged on the first panel, a third panel is arranged on the second panel, the third runners are arranged towards the second panel, one end part of all the runners on the first panel is communicated with the inlet section, one part of the other end part of each runner is communicated with the outlet section, and the other part of each runner is communicated with the outlet section through the third runners.
Description
Technical Field
The utility model relates to the field of power batteries, in particular to a crossing type liquid cooling runner system and a battery pack.
Background
With the increasing development of new energy automobiles, the requirements of the market on the energy density and the charge and discharge power of the power battery are higher and higher, so that the situation that a power battery enterprise uses a liquid cooling system to cool the battery is more and more, the integration level of a battery pack is higher and higher nowadays, the space in the pack is more and more compact, and the extremely compressed space is required to meet the design requirement.
The common method for splitting and converging the liquid cooling plate in the industry is to design nozzles on the outlet section and the inlet section of the liquid cooling plate, and connect the liquid cooling plate by using a quick-insertion pipeline, so that the liquid in the flow channel of the liquid cooling plate is split and converged through the quick-insertion pipeline and the quick-insertion connector, the quick-insertion connector is large in size, has a diameter of about 30mm, requires a space of about 60mm in height, and is high in cost; meanwhile, the fast cannula path has larger influence on the flow resistance, so that the flow resistance of the whole packet is increased; the more the pipelines in the battery pack are, the greater the risk of leakage exists, and in order to improve the energy density of the battery pack, the battery arrangement in the battery pack is often very dense, the space structure is compact, and the heat dissipation space is small; the heat of the battery is difficult to be taken away by utilizing natural cooling or traditional air cooling mode when the battery pack is charged with large current and discharged with large power, so that more and more battery packs adopt the battery liquid cooling technology. The battery liquid cooling technology can rapidly take away the heat in the battery pack, so that the battery system can always keep at the optimal working temperature, the cycle service life of the battery is prolonged, meanwhile, the occurrence of thermal runaway of the battery is prevented, the safety of the battery is improved, and therefore, the problem of how to reasonably install the battery liquid cooling device in a compact space is urgently solved.
Disclosure of Invention
The utility model aims at: aiming at the problems of poor temperature uniformity and general adoption of a quick connector in the prior art, the flow resistance of the whole battery pack is increased; the more the pipelines in the bag are, the greater the risk of leakage is, and the cross-over type liquid cooling flow passage system and the battery bag are provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a stride over formula liquid cooling runner system, includes first panel, be equipped with entrance and exit section of coolant liquid on the first panel, be equipped with two at least runners on the first panel, first panel top is equipped with the second panel, and be equipped with the third panel on the second panel, be equipped with the third runner on the third panel, just the third runner sets up towards the second panel, each on the first panel tip in the runner all communicates the entrance, each in the other tip in the runner some direct intercommunication exit section, each in the other tip in the runner the rest pass through in the other tip in the runner the third runner intercommunication exit section.
The utility model relates to a crossing type liquid cooling flow channel system, which ensures that cooling liquid in a flow channel of a first panel can be matched with a third flow channel to finish the process of flow division and confluence through the matching arrangement of the first panel, the second panel and the flow channel, the integral Z-direction height of a liquid cooling plate can be obviously reduced, the utilization rate of the internal space of a battery can be effectively improved, the flow channel arranged on the third flow channel and the first panel can be matched for use, the internal flow resistance of the liquid cooling plate is reduced, the flow resistance in the whole battery pack is also reduced, and meanwhile, the process of flow division to confluence is finished through the third flow channel and the flow channel, so that the quantity of internal pipelines is reduced, and the occurrence of leakage is reduced.
As a preferable scheme of the utility model, a third through hole and a fourth through hole are further formed in the second panel, the third through hole enables the third flow channel and an inlet section corresponding to the third flow channel to be communicated, and the third flow channel is communicated with the corresponding flow channel through the fourth through hole, so that the third flow channel is connected in a crossing mode.
As a preferable scheme of the utility model, the first through hole and the second through hole which correspond to the inlet section and the outlet section are arranged on the second panel, so that after the first panel is connected with the second panel, the inlet section and the outlet section on the first panel are not completely shielded by the second panel, and liquid cannot enter and exit.
As a preferred embodiment of the present utility model, the flow channel provided on the first panel includes a first flow channel and a second flow channel connected in parallel, and the first flow channel and one end of the second flow channel are connected to the inlet end, and the first flow channel is connected to the outlet section, and one end of the second flow channel is connected to the outlet section through a third flow channel, so that the third flow channel is provided in a crossing manner.
As a preferable scheme of the utility model, the first panel, the second panel and the third panel are connected through brazing, so that the air tightness after connection is ensured, wherein the first panel and the third panel are respectively arranged on the upper end face and the lower end face of the second panel.
As a preferable mode of the present utility model, the inlet section and the outlet section, and the first flow channel and the second flow channel are all first groove structures formed on the first panel by punching, and the third flow channel is also second groove structures formed on the third panel by punching, so that the inlet section and the outlet section, and the first flow channel, the second flow channel and the third flow channel can be integrally formed.
As a preferred scheme of the utility model, the first groove structure and the second groove structure are oppositely arranged, the concave surface of the second groove structure faces the second panel, the convex surface of the second groove structure faces the outside, two ends of the second groove respectively correspond to the tail ends of the first groove after the first groove is formed, namely two ends of the third runner respectively correspond to the tail ends of the first runner and the second runner, so that a cavity can be formed after the runners are connected, and the split flow and the confluence of liquid in the runners are realized.
As a preferable mode of the present utility model, the first panel D1, the second panel D2 and the third panel D3 are punched plates with thickness of 1-2mm, so that the first panel and the second panel are formed. The integral thickness of the third panel after brazing connection is increased by not more than 5mm, and the Z-direction height of the liquid cooling plate system can be remarkably reduced.
As the preferable scheme of the utility model, the depth of the flow channel formed by stamping of the first panel is within the range of 2-4mm, the depth of the third flow channel formed by stamping on the third panel is also within the range of 2-4mm, the utilization rate of space is improved while the liquid in the flow channel is not blocked,
the utility model also provides a battery pack, which comprises the crossing type liquid cooling runner system.
By adopting the battery pack of the crossing type liquid cooling runner system, the space volume of the battery pack can be effectively reduced, the integration level of the battery pack is higher and higher, the space in the battery pack is compact, and the design requirement in the extremely compressed space can be met.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. the utility model relates to a crossing type liquid cooling flow channel system, which ensures that cooling liquid in a flow channel of a first panel can be matched with a third flow channel to finish the process of diversion and confluence through the matching arrangement of the first panel, the second panel and the flow channel, the overall Z-direction height of a liquid cooling plate is reduced, the utilization rate of the internal space of a battery is improved, the flow resistance in the liquid cooling plate is reduced through the matching use of the third flow channel and the flow channel arranged on the first panel, the flow resistance in the whole battery pack is also reduced, and meanwhile, the process of diversion to confluence is finished through the third flow channel and the flow channel, so that the number of internal pipelines is reduced, and the leakage condition is reduced.
2. The utility model relates to a crossing type liquid cooling runner system, which adopts a third panel to replace a traditional quick connector, and the first panel, the second panel and the third panel are brazed, so that the three-layer brazing plate increases the height not higher than 5mm in terms of space design and replaces the use of a quick pipeline; if a quick insertion pipe is used, the Z-direction height needs about 60mm of space, and from the aspect of flow resistance, the inside of the quick insertion joint has larger diameter variation and has larger influence on the flow resistance; the third panel and the first panel have the same flow passage cross section, the influence on flow resistance is small, the quick-connect pipe is likely to have a sealing ring failure from the airtight scheme, and the leakage rate of the brazing sheet is higher than that of the quick-connect joint.
3. The battery pack adopted by the utility model adopts the crossing type liquid cooling runner system, so that the space volume of the battery pack can be effectively reduced, the integration level of the battery pack is higher and higher, the space in the battery pack is compact, and the design requirement in extremely compressed space can be met.
Drawings
FIG. 1 is a schematic diagram of a front view of a cross-over liquid cooling flow channel system and a battery pack according to the present utility model;
FIG. 2 is a schematic diagram of an isometric structure of a cross-over liquid cooling flow channel system and a battery pack according to the present utility model;
FIG. 3 is a schematic diagram of a second panel structure of a cross-over liquid cooling flow channel system and a battery pack according to the present utility model;
FIG. 4 is a schematic view of an isometric view of a second panel of a cross-over liquid cooling flow channel system and a battery pack according to the present utility model;
FIG. 5 is a schematic rear view of a first panel of a cross-over liquid cooling flow channel system and battery pack according to the present utility model;
FIG. 6 is a schematic cross-sectional view of a flow channel of a cross-over liquid cooled flow channel system and battery pack of the present utility model;
FIG. 7 is a schematic diagram of a cross-over liquid cooled runner system and a runner of a battery pack according to the present utility model;
FIG. 8 is a schematic front cross-sectional view of a flow channel of a cross-over liquid cooled flow channel system and battery pack according to the present utility model;
FIG. 9 is a schematic diagram of panel braze thickness of a spanned liquid cooled runner system and panel in accordance with the present utility model.
FIG. 10 is an enlarged schematic view of the cross-over liquid cooled runner system and the battery pack of FIG. 8 at a runner front section B;
FIG. 11 is a third panel block diagram of a cross-over liquid cooled runner system and battery pack according to the present utility model;
FIG. 12 is a side view of a third panel of a cross-over liquid cooled runner system and battery pack in accordance with the present utility model;
FIG. 13 is a schematic cross-sectional view of a third flow path of a cross-over liquid cooled flow path system and a panel of the present utility model;
FIG. 14 is a schematic diagram of an explosion configuration of a cross-over liquid cooling flow channel system and a panel according to the present utility model;
FIG. 15 is a flow diagram of a cross-over liquid cooled runner system and panel in accordance with the present utility model.
Icon: 1-a first panel; 2-a second panel; 3-a third panel; 4-flow channels; 5-liquid cooling plate; 2 a-a first through hole; 2 b-a second through hole; 2 c-a third through hole; 2 d-fourth through holes; 3 a-a third flow path; 4 a-an inlet section; 4 b-an outlet section; 4 c-a second flow channel; 4 d-a first flow channel; h1-channel depth; h2-third flow channel depth; d1—a first panel thickness; d2—a second panel thickness; d3—third panel thickness.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The utility model relates to a crossing type liquid cooling flow channel system, which comprises a first panel 1, wherein an inlet section 4a and an outlet section 4b for inflow and outflow of cooling liquid are arranged on the first panel 1, two flow channels 4 are respectively arranged on the first panel 1, a second panel 2 is arranged at the upper end of the first panel 1, a third panel 3 is arranged on the second panel 2, a third flow channel 3a is arranged on the third panel 3, and the third flow channel 3a is arranged towards the second panel 2; one end of all the flow passages 4 on the first panel 1 are connected to the inlet section 4a, and one part of the other end of each flow passage 4 is connected to the outlet section 4b, and the other part of each flow passage 4 is connected to the outlet section 4b through the third flow passage 3a, as shown in fig. 1 to 3 and 11 to 13.
The second panel 2 is provided with a third through hole 2c and a fourth through hole 2d, and the third flow channel 3a is communicated with the inlet section 4a through the third through hole 2c, so that the cooling liquid can flow out, and the third flow channel 3a is communicated with the corresponding flow channel 4 through the fourth through hole 2d, so that the process of diversion-convergence of the cooling liquid is realized, as shown in fig. 12.
The upper end of the second panel 2 is provided with a first through hole 2a and a second through hole 2b corresponding to the inlet section 4a and the outlet section 4b, and the second panel 2 needs to be connected with the first panel 1, and the first panel 1 is provided with the inlet section 4a and the outlet section 4b, so that the inlet section 4a and the outlet section 4b on the first panel 1 are prevented from being completely covered by the second panel 2 by the first through hole 2a and the second through hole 2b, and the phenomenon that liquid cannot be infused is caused, as shown in fig. 3-4.
The two flow channels 4 disposed on the first panel 1 are respectively a first flow channel 4d and a second flow channel 4c which are connected in parallel, one ends of the first flow channel 4d and the second flow channel 4c are connected to the inlet section 4a, the first flow channel 4d and the second flow channel 4c are connected to the outlet section 4b, so that the first flow channel 4d and the second flow channel 4c are integrated on the first panel 1 at the inlet section 4a and are separated into the first flow channel 4d and the second flow channel 4c at one inner part, the first flow channel 4d and the second flow channel 4c are connected to the outlet section 4b again, so that the first flow channel 4d and the second flow channel 4c are disposed in parallel on the first panel 1, as shown in fig. 5-7, one ends of the first flow channel 4d and the second flow channel 4c are connected to the inlet section 4a, the other ends of the third flow channel 4d are connected to the outlet section 4b, and the second flow channel 4c is connected to the outlet section 4b through the third flow channel 3a, and the second flow channel 4c is connected to the second flow channel 4c, as shown in fig. 10 b, and the second flow channel 4d and the second flow channel 4c are correspondingly arranged at the end positions of the second flow channel 4d and the second flow channel 4 d.
The first panel 1, the second panel 2 and the third panel 3 are connected through brazing, so that the overall air tightness after connection is ensured, and the first panel 1 and the third panel 3 are respectively arranged on the upper surface and the lower surface of the second panel 2.
The inlet section 4a, the outlet section 4b, the first flow channel 4d and the second flow channel 4c are all first groove structures formed by stamping on the first panel 1, and the third flow channel 3a is a second groove structure formed by stamping on the third panel 3, as shown in fig. 5-7.
The first groove structure formed by stamping on the first panel 1 is opposite to the second groove structure formed by stamping on the third panel, that is, the concave surface of the second groove structure faces the second panel and is communicated with the third through hole and the fourth through hole formed on the second panel, the tail end of the first groove structure is communicated with the fourth through hole, that is, the third flow channel is communicated with the tail end of the first flow channel and the tail end of the second flow channel through the third through hole and the fourth through hole, the convex surface of the second groove is arranged outwards, the grooves on the two panels are guaranteed to be connected to form a cavity for liquid flow, and the protruding parts of the grooves are all arranged outwards, as shown in fig. 7-11.
The above mentioned thickness D1 of the first panel 1, the thickness D2 of the second panel 2 and the thickness D3 of the third panel 3 are all 1mm-2mm, and the utilization ratio of the space is improved by the punching plate, as shown in fig. 9.
The depth H1 of the runner 4 provided on the first panel 1 and the depth H2 of the third runner 3a formed by stamping on the third panel 3 are between 2mm and 4mm, so that the Z-directional height of the integral member after connection forming is increased by not more than 5mm, and compared with the conventional quick connector, the overall Z-directional height is reduced by such arrangement, as shown in fig. 14.
Example 2
As shown by the arrow in fig. 15, the present utility model is a cross-type liquid cooling flow channel system, in which the liquid flows from the first through hole 2a provided on the second panel 2 to the inlet section 4a provided on the first panel 1, when the liquid starts to flow after the inlet section 4a has passed a certain distance, one flow of liquid flows into the first flow channel 4d, the other flow of liquid flows into the second flow channel 4c, the liquid in the first flow channel 4d directly flows to the outlet section 4b and the liquid in the second flow channel 4c flows to the end of the second flow channel 4c, and since the upper end of the second flow channel 4c is provided with the third channel 2c and the third channel 2c is connected with one end of the third flow channel 3a, the liquid flows into the third channel 3a through the third through hole 2a after the end of the second flow channel 4c is piled up, and the other end of the third channel 3a is connected with the end of the third flow channel 4d, so that the liquid in the third flow channel 3a flows from the fourth flow channel 2d to the end of the outlet section 4b directly to the second flow channel 4d, and the cross-type liquid flows from the end of the second flow channel 4d to the outlet section 4d directly.
Example 3
The utility model relates to a battery pack, which comprises the crossing type liquid cooling runner system. By adopting the battery pack of the crossing type liquid cooling runner system, the space volume of the battery pack can be effectively reduced, the integration level of the battery pack is higher and higher, the space in the battery pack is compact, and the design requirement in the extremely compressed space can be met.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The spanned liquid cooling runner system is characterized by comprising a first panel (1), wherein an inlet section (4 a) and an outlet section (4 b) of cooling liquid are arranged on the first panel (1), at least two runners (4) are arranged on the first panel (1), a second panel (2) is arranged above the first panel (1), a third panel (3) is arranged on the second panel (2), a third runner (3 a) is arranged on the third panel (3), and the third runner (3 a) is arranged towards the second panel (2); one end part of each flow passage (4) on the first panel (1) is communicated with the inlet section (4 a), one part of the other end part of each flow passage (4) is directly communicated with the outlet section (4 b), and the rest part of the other end part of each flow passage (4) is communicated with the outlet section (4 b) through the third flow passage (3 a).
2. The spanned liquid cooling runner system according to claim 1, wherein a third through hole (2 c) and a fourth through hole (2 d) are formed in the second panel (2), the third runner (3 a) is communicated with the inlet section (4 a) through the third through hole (2 c), and the third runner (3 a) is communicated with the runner (4) through the fourth through hole (2 d).
3. A spanned liquid cooled runner system according to claim 1 wherein the upper end face of the second panel (2) is provided with a first through hole (2 a) and a second through hole (2 b), the first through hole (2 a) being in communication with the inlet section (4 a) and the second through hole (2 b) being in communication with the outlet section (4 b).
4. A spanned liquid cooled runner system according to claim 1 wherein the runner (4) on the first panel (1) comprises a first runner (4 d) and a second runner (4 c) connected in parallel, one end of the first runner (4 d) and one end of the second runner (4 c) both communicating with the inlet section (4 a), the other end of the first runner (4 d) communicating with the outlet section (4 b), the second runner (4 c) communicating with the outlet section (4 b) through the third runner (3 a).
5. A spanned liquid cooled runner system according to any of claims 1 to 4 wherein the first panel (1), the second panel (2) and the third panel (3) are joined by brazing to form a unitary structure, wherein the first panel (1) and the third panel (3) are provided on opposite surfaces of the second panel (2), respectively.
6. A spanned liquid cooled runner system according to claim 5 wherein the inlet section (4 a) and the outlet section (4 b) and the runner (4) are each a first groove structure stamped on the first panel (1) and the third runner (3 a) is a second groove structure stamped on the third panel (3).
7. The spanned liquid cooled runner system of claim 6, wherein the first groove structure is disposed opposite the second groove structure, and the second groove structure is disposed toward the second panel (2), and wherein the protrusions at the bottom of the second groove structure are disposed outwardly.
8. A spanned liquid cooled runner system according to claim 7 wherein the thickness D1 of the first panel (1), the thickness D2 of the second panel (2) and the thickness D3 of the third panel (3) are each 1-2mm.
9. A spanned liquid cooled runner system as claimed in claim 8 wherein each of said runners (4) stamped in said first panel (1) has a depth H1 of 2-4mm and said third runner (3 a) stamped in said third panel (3) has a depth H2 of 2-4mm.
10. A battery pack comprising a cross-over liquid cooling flow path system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303091.5U CN219303761U (en) | 2022-12-08 | 2022-12-08 | Crossing type liquid cooling runner system and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303091.5U CN219303761U (en) | 2022-12-08 | 2022-12-08 | Crossing type liquid cooling runner system and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219303761U true CN219303761U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223303091.5U Active CN219303761U (en) | 2022-12-08 | 2022-12-08 | Crossing type liquid cooling runner system and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219303761U (en) |
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2022
- 2022-12-08 CN CN202223303091.5U patent/CN219303761U/en active Active
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