CN112531256A - Cylindrical power battery echelon utilization module pack, battery rack and container - Google Patents
Cylindrical power battery echelon utilization module pack, battery rack and container Download PDFInfo
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- CN112531256A CN112531256A CN202011466242.1A CN202011466242A CN112531256A CN 112531256 A CN112531256 A CN 112531256A CN 202011466242 A CN202011466242 A CN 202011466242A CN 112531256 A CN112531256 A CN 112531256A
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- power battery
- module
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- 230000017525 heat dissipation Effects 0.000 claims description 21
- 229920001187 thermosetting polymer Polymers 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 238000013461 design Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization 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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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a cylindrical power battery echelon utilization module pack, a battery rack and a container, relates to the technical field of new energy automobiles, and solves the technical problem that the cylindrical power battery echelon utilization in the prior art is low in space utilization rate. The cylindrical power battery echelon utilization module pack comprises a shell and battery units, wherein the shell is hexagonal, a hexagonal accommodating part is formed in the shell, and the accommodating part is used for accommodating the battery units; the battery unit is formed by arranging a plurality of cylindrical batteries, and the shape of the battery unit is matched with that of the accommodating part. The accommodating part is hexagonal, the battery units are also hexagonal, and when the cylindrical power batteries are used in a gradient manner, the gaps between adjacent cylindrical batteries can be reduced, the space utilization rate is improved, and the grouping efficiency of the cylindrical batteries can be further improved.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a module pack for echelon utilization of a cylindrical power battery, a battery rack comprising the module pack and a container comprising the battery rack.
Background
And beginning in the fourth quarter of 2019, the power battery of the new energy automobile in China begins to enter an intensive retirement period. In order to thoroughly solve the problem of leaving a new energy automobile retired power battery, the Ministry of industry and communications has issued a plurality of instructive documents in 2018, and the aim is to try to promote the new energy automobile power battery to perform echelon utilization work. At present, the utilization of echelon lithium batteries is mainly concentrated in energy storage projects on a user side, a power grid side and a new energy source side, and in addition, other applications such as iron tower base stations, power grid substation standby power supplies and the like are gradually scaled.
The appearance of the current power battery mainly comprises a square shape, a cylindrical shape and a soft package shape (the big soft package shape is also similar to the square shape), and the market share of the power batteries with different appearances is respectively about 78.7%, 20.6% and 0.7%. It can be seen that square power battery occupies main market, therefore the module pack design that power battery echelon utilized at present is mostly to square aluminum hull or big soft packet of shape battery. However, the cylindrical battery in the currently retired power battery also has a considerable proportion, and has an important significance for the gradient utilization of the cylindrical power battery.
The applicant has found that there are at least the following problems with the echelon utilization of cylindrical power cells: the requirements on a Battery Management System (BMS) are high when the cylindrical power battery is used in an echelon mode. Specifically, when cylindrical batteries are used in groups, gaps exist among the batteries, the space utilization rate is low, and the grouping efficiency is low. In order to improve the grouping efficiency of the cylindrical battery, the battery cells are generally made smaller, which results in a larger number of battery cells. When the battery management system operates, voltage and temperature data of each battery cell need to be collected in real time, so that the data collection amount and the calculation amount of the battery management system are large. On the other hand, because cylindrical battery monomer capacity ratio is less, monomer quantity is more when using in groups for module pack structure is more complicated. Therefore, more consideration needs to be given to heat dissipation optimization and space utilization improvement when the module pack is designed.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to develop a cylindrical power battery echelon utilization module pack to provide a cylindrical power battery echelon utilization approach.
Disclosure of Invention
One of the purposes of the invention is to provide a cylindrical power battery echelon utilization module pack, a battery rack and a container, and solve the technical problem that the space utilization rate is low when cylindrical power batteries are used echelon in the prior art. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.
In order to achieve the purpose, the invention provides the following technical scheme:
the cylindrical power battery echelon utilization module pack comprises a shell and battery units, wherein the shell is hexagonal, a hexagonal accommodating part is formed in the shell, and the accommodating part is used for accommodating the battery units; the battery unit is formed by arranging a plurality of cylindrical batteries, and the shape of the battery unit is matched with that of the accommodating part.
According to a preferred embodiment, the battery unit further includes a thermosetting heat-dissipating medium filled between the cylindrical batteries and used to fix and dissipate heat from the cylindrical batteries.
According to a preferred embodiment, the outer periphery of the receiving part is formed as a heat dissipating part for dissipating heat from the battery cell.
According to a preferred embodiment, the heat dissipation part is a hollow heat dissipation channel.
According to a preferred embodiment, the cylindrical power battery echelon utilization module pack further comprises an acquisition module and a control module, and the acquisition module and the control module are integrated on the battery unit.
According to a preferred embodiment, the housing is made of flame-retardant plastic or sheet metal.
The battery rack comprises a rack body and a plurality of cylindrical power battery echelon utilization module packs in any technical scheme, and the cylindrical power battery echelon utilization module packs are sequentially stacked to form a honeycomb structure.
According to a preferred embodiment, the shells of two adjacent cylindrical power batteries in the echelon utilization module pack are connected through a connecting piece.
The container comprises a battery compartment and an equipment compartment, wherein the battery rack in any technical scheme of the invention is placed in the battery compartment.
According to a preferred embodiment, a plurality of rows of the battery racks are placed in the battery compartment, and a gap is reserved between adjacent battery racks.
The cylindrical power battery echelon utilization module pack, the battery rack and the container provided by the invention at least have the following beneficial technical effects:
the cylindrical power battery echelon utilization module pack comprises a shell and battery units, wherein the shell is hexagonal, a hexagonal accommodating part is formed in the shell, and the accommodating part is used for accommodating the battery units; the battery unit is formed by arranging a plurality of cylindrical batteries, and the shape of the battery unit is matched with that of the accommodating part, namely, the plurality of cylindrical batteries of the invention are formed into a hexagonal battery unit which is placed in the hexagonal accommodating part, and compared with a square shape, a triangular shape or other irregular shapes, a hexagon with an angle of 120 degrees has the smallest gap when being tangent to a circle. Therefore, the accommodating part is arranged to be hexagonal, the battery units are also formed to be hexagonal, and when the cylindrical power battery is used in an echelon mode, the gap between adjacent cylindrical batteries can be reduced, the space utilization rate is improved, and the grouping efficiency of the cylindrical batteries can be improved. The cylindrical power battery echelon utilization module pack solves the technical problem that the cylindrical power battery in the prior art is low in space utilization rate during echelon utilization.
The battery rack comprises a rack body and a plurality of cylindrical power battery echelon utilization module packs according to any technical scheme, the cylindrical power battery echelon utilization module packs are sequentially stacked to form a honeycomb structure, the module packs are hexagonal, when the cylindrical power battery echelon utilization module packs are stacked to form the honeycomb structure, gaps do not exist between every two adjacent module packs, and the space utilization rate of the battery rack is improved. The battery rack further solves the technical problem that the space utilization rate is low when the cylindrical power battery is used in a gradient manner in the prior art.
The container comprises the battery compartment, the battery rack of any technical scheme of the invention is placed in the battery compartment, and because the container of the invention uses the battery rack of any technical scheme of the invention, no redundant gap is formed between adjacent echelon utilization modules pack of the cylindrical power battery, the space of the battery rack is fully utilized, and the space utilization rate of the cylindrical power battery during echelon utilization can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic view of a preferred embodiment of a cylindrical power cell echelon utilization module pack of the present invention;
FIG. 2 is a second schematic view of a preferred embodiment of the cylindrical power cell echelon utilization module pack of the present invention;
FIG. 3 is a schematic view of a preferred embodiment of the battery stand of the present invention;
FIG. 4 is a first schematic view of a preferred embodiment of the container of the present invention;
figure 5 is a second schematic view of a preferred embodiment of the container of the present invention.
In the figure: 1. a battery compartment; 10. a battery holder; 101. a module pack; 1011. an accommodating portion; 1012. a heat dissipating section; 1013. a cylindrical battery; 1014. a thermosetting heat-dissipating medium; 1015. a PCB board; 2. an equipment cabin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The cylindrical power battery echelon utilization module pack, the battery rack and the container of the invention are described in detail below with reference to the accompanying drawings 1 to 5 and the embodiments 1 to 3 of the specification.
Example 1
The present embodiment describes the cylindrical power battery echelon utilization module pack of the present invention in detail.
The cylindrical power battery echelon utilization module pack101 of the embodiment comprises a shell and a battery unit, as shown in fig. 1 or 2. Preferably, the housing has a hexagonal shape, and a hexagonal receiving part 1011 is formed inside the housing, the receiving part 1011 receiving the battery cell, as shown in fig. 1. Preferably, the battery unit is formed by arranging a plurality of cylindrical batteries 1013, and the shape of the battery unit matches the shape of the receiving part 1011, as shown in fig. 1. The cylindrical power battery in the embodiment is preferably a cylindrical retired power battery.
The plurality of cylindrical batteries 1013 of the present embodiment are formed as hexagonal battery cells placed in the receiving part 1011, and the hexagon having an angle of 120 ° has a minimum gap when being tangent to a circle, compared to a square, a triangle, or other irregular shapes. Therefore, the receiving parts 1011 of the present embodiment are formed in a hexagonal shape, and the battery cells are also formed in a hexagonal shape, so that when the cylindrical power battery is used in an echelon, the gap between the adjacent cylindrical batteries 1013 can be reduced, the space utilization rate can be improved, and the grouping efficiency of the cylindrical batteries 1013 can be improved. The cylindrical power battery echelon of this embodiment utilizes module pack101 promptly, has solved among the prior art cylindrical power battery echelon and has had the problem that space utilization is low when utilizing.
According to a preferred embodiment, the battery cell further includes a heat-curable heat-dissipating medium 1014. Preferably, a thermosetting heat-dissipating medium 1014 is filled between the cylindrical batteries 1013, and the thermosetting heat-dissipating medium 1014 serves to fix the cylindrical batteries 1013 and dissipate heat from the cylindrical batteries 1013, as shown in fig. 1 or 2. The thermosetting heat dissipation medium 1014 of the preferred embodiment of the present invention is a product of the prior art. On one hand, in the preferred technical solution of the present embodiment, the plurality of cylindrical batteries 1013 can be connected into a whole through the thermosetting heat dissipation medium 1014, and when the module pack101 is assembled, the thermosetting heat dissipation medium 1014 and the sides of the cylindrical batteries 1013 can be directly inserted into the receiving portions 1011, so that the installation is convenient; and after the module pack101 forms a battery cluster, the battery units in the module pack101 can be conveniently replaced. On the other hand, the thermosetting heat dissipation medium 1014 has good thermal conductivity, and can better conduct heat generated by the cylindrical batteries 1013, and the thermosetting heat dissipation medium 1014 is dispersed among the cylindrical batteries 1013, so that the heat of the module pack101 can be prevented from being too concentrated, and the safety of the module pack101 is improved.
According to a preferred embodiment, the outer periphery of the receiving part 1011 is formed as a heat dissipating part 1012, and the heat dissipating part 1012 serves to dissipate heat from the battery cell, as shown in fig. 1 or 2. Preferably, the heat dissipation portion 1012 is a hollowed-out heat dissipation channel. The periphery of the accommodating part 1011 of the preferred technical scheme of this embodiment is formed with the hollow heat dissipation channel for the shell that has the hollow heat dissipation channel not only can play the supporting role to the battery unit, still helps losing the heat that the thermosetting heat dissipation medium 1014 derived faster to the surrounding environment in, has further improved the reliability of module pack 101.
According to a preferred embodiment, the cylindrical power battery echelon utilization module pack101 further comprises an acquisition module and a control module, and the acquisition module and the control module are integrated on the battery unit. Preferably, the collecting module is, for example, a PCB 1015 for collecting the voltage and temperature of the cylindrical battery 1013; the control module is a BMU (battery management unit) control module. More preferably, the BMU control module is integrated on the PCB 1015. In the preferred embodiment, one module pack101 is a battery management unit, and the cylindrical battery 1013 can be managed by integrally disposing the PCB 1015 on the battery unit.
According to a preferred embodiment, the housing is made of flame-retardant plastic or sheet metal parts. Preferably, the heat dissipation portion 1012 is made of the same material as the housing. The shell of the preferred technical scheme of this embodiment is made for fire-retardant plastics or sheet metal component, can improve the security performance of shell.
The cylindrical power battery echelon utilization module pack101 provides a echelon utilization way for cylindrical decommissioned power batteries, and can improve the heat dissipation performance and the space utilization rate of a system; the cylindrical power battery echelon utilization module pack101 of this embodiment still has the convenient, the convenient advantage of replacement of equipment when using.
Example 2
This embodiment will explain the battery holder of the present invention in detail.
The battery rack 10 of this embodiment includes a rack body and a plurality of cylindrical power battery echelon utilization module packs 101 according to any one of the technical solutions of embodiment 1, and the cylindrical power battery echelon utilization module packs 101 are stacked in sequence to form a honeycomb structure, as shown in fig. 3. Since the module packs 101 of embodiment 1 are hexagonal, when they are stacked to form a honeycomb structure, there is no gap between adjacent module packs 101, which improves the space utilization of the battery rack 10. That is, the battery rack 10 of this embodiment further solves the technical problem of low space utilization rate in the prior art when the cylindrical power battery is used in steps.
According to a preferred embodiment, the housings of two adjacent cylindrical power batteries in the echelon utilization module pack101 are connected through a connecting piece. More preferably, two adjacent cylindrical power battery echelons utilize and connect through sheet metal connector between module pack 101's the fretwork type support. The shell that this embodiment preferred technical scheme passes through the connecting piece with adjacent module pack101 is connected, can improve the steadiness of connecting between the module pack 101.
According to a preferred embodiment, the number of the cylindrical power battery echelon utilization module packs 101 can be designed based on the capacity size of the battery cluster.
The multiple cylindrical power battery echelon utilization module pack101 of the embodiment is not limited to be stacked into a honeycomb structure, and can also be stacked into other shapes, such as a triangle, a polygon or an irregular shape, based on specific application scenarios; the integrated single cluster cabinet can also be designed.
Example 3
This embodiment will explain the container of the present invention in detail.
The container of this embodiment includes a battery compartment 1, and a battery rack 10 according to any one of the embodiments 2 is disposed in the battery compartment 1, as shown in fig. 4 or 5. As shown in fig. 4, the container of the present embodiment further includes an equipment compartment 2. Because the container of this embodiment has used the battery frame 10 of any technical scheme of embodiment 2, there is not unnecessary clearance between the adjacent cylindrical power battery echelon utilization module pack101, make full use of the space of battery frame 10 to space utilization when can improve cylindrical power battery echelon utilization.
According to a preferred embodiment, a plurality of rows of battery racks 10 are placed in the battery compartment 1, and a gap is reserved between adjacent battery racks 10, as shown in fig. 4 or 5. Preferably, the reserved width between the battery racks 10 is determined to be 5-50 cm based on the design of an air duct in the container. The preferred embodiment of the present invention is that the depth of the battery rack 10 is smaller than the depth of the battery rack 10 conventionally used for prismatic batteries, so that a plurality of rows of battery racks 10 can be placed in the battery compartment 1. According to the preferred technical scheme of the embodiment, a gap is reserved between the adjacent battery racks 10, and the air conditioning system and the air duct design in the battery cabin 1 are matched, so that the cylindrical power battery can be ensured to be fully cooled by utilizing the module pack101 in a gradient manner.
According to a preferred embodiment, a manual service access is provided in the battery compartment 1. Through the manual maintenance passageway in the battery compartment 1, can carry out regular overhaul to the equipment in the battery compartment 1.
According to a preferred embodiment, the bottom of the battery stand 10 is provided with pulleys. The battery rack 10 can be conveniently moved during maintenance through the pulleys at the bottom of the battery rack 10.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The cylindrical power battery echelon utilization module pack is characterized by comprising a shell and battery units, wherein the shell is hexagonal, and hexagonal accommodating parts are formed inside the shell and used for accommodating the battery units; the battery unit is formed by arranging a plurality of cylindrical batteries, and the shape of the battery unit is matched with that of the accommodating part.
2. The cylindrical power battery echelon utilization module pack according to claim 1, wherein the battery unit further comprises a thermosetting heat dissipation medium, the thermosetting heat dissipation medium is filled between the cylindrical batteries, and the thermosetting heat dissipation medium is used for fixing the cylindrical batteries and dissipating heat of the cylindrical batteries.
3. The cylindrical power battery echelon utilization module pack according to claim 1 or 2, wherein the outer periphery of the receiving portion is formed as a heat dissipation portion for dissipating heat from the battery cells.
4. The cylindrical power battery echelon utilization module pack as recited in claim 3, wherein the heat dissipation portion is a hollowed-out heat dissipation channel.
5. The cylindrical power battery echelon utilization module pack as recited in claim 1, further comprising an acquisition module and a control module, and the acquisition module and the control module are integrated on the battery cells.
6. The cylindrical power battery echelon utilization module pack as recited in claim 1, wherein the housing is made of flame retardant plastic or sheet metal.
7. A battery rack comprising a rack body and a plurality of the cylindrical power battery step use module packs according to any one of claims 1 to 6, wherein the cylindrical power battery step use module packs are stacked in sequence to form a honeycomb structure.
8. The battery rack of claim 7, wherein the housings of two adjacent cylindrical power batteries using the modular pack are connected by a connecting member.
9. A container comprising a battery compartment and an equipment compartment, wherein the battery rack of claim 7 or 8 is disposed in the battery compartment.
10. The container according to claim 9, wherein a plurality of rows of the battery racks are placed in the battery compartment, and a gap is reserved between adjacent battery racks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011466242.1A CN112531256A (en) | 2020-12-14 | 2020-12-14 | Cylindrical power battery echelon utilization module pack, battery rack and container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011466242.1A CN112531256A (en) | 2020-12-14 | 2020-12-14 | Cylindrical power battery echelon utilization module pack, battery rack and container |
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| CN112531256A true CN112531256A (en) | 2021-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204173A (en) * | 2021-12-01 | 2022-03-18 | 远景动力技术(江苏)有限公司 | Battery and battery module |
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2020
- 2020-12-14 CN CN202011466242.1A patent/CN112531256A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204173A (en) * | 2021-12-01 | 2022-03-18 | 远景动力技术(江苏)有限公司 | Battery and battery module |
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