CN111555000A - Heat dissipation battery module and battery package - Google Patents
Heat dissipation battery module and battery package Download PDFInfo
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- CN111555000A CN111555000A CN202010423190.3A CN202010423190A CN111555000A CN 111555000 A CN111555000 A CN 111555000A CN 202010423190 A CN202010423190 A CN 202010423190A CN 111555000 A CN111555000 A CN 111555000A
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- heat dissipation
- dissipation plate
- heat
- plate
- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
Abstract
The invention relates to the technical field of battery packs, in particular to a heat dissipation battery module and a battery pack, wherein the heat dissipation battery module comprises a battery device and a heat dissipation device; the heat dissipation device comprises at least one heat dissipation component; each heat dissipation assembly comprises a plurality of first connecting pipes and at least two heat dissipation plates, the heat dissipation plates of the heat dissipation assemblies are at least arranged on two surfaces of the battery device, flow passages are arranged inside the heat dissipation plates, and the flow passages of the heat dissipation plates positioned on different surfaces of the battery device are mutually communicated through the first connecting pipes; the battery device is provided with at least one heat dissipation assembly, each heat dissipation assembly comprises a plurality of first connecting pipes and at least two heat dissipation plates, and the heat dissipation plates of the heat dissipation assemblies are at least arranged on two surfaces of the battery device, so that the heat dissipation contact area of the battery module is increased, and the heat dissipation capacity of the battery module is improved; and all be provided with the runner in the heating panel, make the runner in each heating panel communicate each other through first connecting pipe, realized the balanced effect of different surface temperatures of battery module.
Description
Technical Field
The invention relates to the technical field of battery packs, in particular to a heat dissipation battery module and a battery pack.
Background
The popularization of new energy is actively promoted in various countries, new energy automobiles develop rapidly, and the solution of the problems of high-power rapid charging and discharging, battery heat dissipation and the like becomes more important.
The most common way for improving the heat dissipation power in the field of new energy battery packs is to enlarge the temperature difference between the cooling liquid and the battery 1; 2. the thermal resistance of the battery module is reduced; 3. the heat dissipation area of the battery is increased; the third item is the easiest to implement and is the most common way; prior art battery packs often cool the module by securing a liquid cooled plate over the lower tray. However, the liquid cooling plate can only contact the bottom surface of the battery core, the contact area is small, if the cooling fin plate is additionally arranged between the battery cores, more cost is increased, the weight of the whole package is increased, the grouping efficiency is low, the heat transfer effect of the fin plate is not ideal, and the assembly is inconvenient. Or the cooling of the battery module in the prior art is usually through the mode of fixing the water cooling plate at the lower shell, but this kind of mode can only cool off the bottom surface of electric core, and this kind of mode electric core is less with cold drawing area of contact, can't satisfy the requirement of high-power charge-discharge.
Based on the disadvantages of the prior art, a heat dissipation battery module and a battery pack are needed to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a heat dissipation battery module and a battery pack, wherein at least one heat dissipation assembly is arranged, each heat dissipation assembly comprises a plurality of first connecting pipes and at least two heat dissipation plates, and the heat dissipation plates of the heat dissipation assemblies are at least arranged on two surfaces of a battery device, so that the heat dissipation contact area of the battery module is increased, and the heat dissipation capacity of the battery module is improved; and all be provided with the runner in the heating panel, through the first connecting pipe makes the runner in each heating panel communicate each other, and this has realized the balanced effect of the different surface temperature of battery module has also avoided setting up heat radiation structure on every electric core simultaneously, realizes the simplification of battery module structure, the equipment of being convenient for.
The invention discloses a heat dissipation battery module, which comprises a battery device and a heat dissipation device, wherein the battery device comprises a battery body and a heat dissipation plate;
the heat dissipation device comprises at least one heat dissipation component;
every radiator unit all includes a plurality of first connecting pipes and two at least heating panels, radiator unit's heating panel sets up at least two of battery device are surperficial, the inside runner that all is provided with of heating panel is located pass through between the runner of the heating panel of the different surfaces of battery device first connecting pipe communicates each other.
Furthermore, the heat dissipation device comprises a second connecting pipe and at least two heat dissipation assemblies, and the at least two heat dissipation assemblies are connected through the second connecting pipe.
Further, the heat dissipation device comprises a first heat dissipation assembly, the first heat dissipation assembly comprises a first heat dissipation plate, a second heat dissipation plate and a third heat dissipation plate, and the second heat dissipation plate and the third heat dissipation plate are respectively arranged on two sides of the first heat dissipation plate;
the first heat dissipation plate comprises a first flow passage;
the second heat dissipation plate comprises a second flow passage;
the third heat dissipation plate comprises a third flow passage;
the second flow passage communicates with the first flow passage through the first connection pipe, and the third flow passage communicates with the first flow passage through the first connection pipe.
Further, the first heat dissipation plate further comprises a first surface, a second surface, a third surface and a fourth surface which are oppositely arranged;
the first surface is also provided with a fifth connecting pipe for connecting with an external water path;
the second surface is also provided with a first mounting hole, and a first connecting piece is arranged in the first mounting hole;
the third surface is provided with a first water inlet hole, the fourth surface is provided with a second water inlet hole, and the first water inlet hole and the second water inlet hole are communicated with the first flow channel.
Further, the first heat dissipation plate, the second heat dissipation plate, and the third heat dissipation plate are respectively disposed on three surfaces of the battery device; the first heat dissipation plate, the second heat dissipation plate and the third heat dissipation plate are connected with the battery device through heat conduction structural glue.
Further, the heat dissipation assembly further comprises a second heat dissipation assembly, and the second heat dissipation assembly further comprises a fourth heat dissipation plate, a fifth heat dissipation plate and a sixth heat dissipation plate; the fifth heat dissipation plate and the sixth heat dissipation plate are respectively arranged on two sides of the fourth heat dissipation plate;
the fourth heat sink includes a fourth flow channel;
the fifth heat dissipation plate comprises a fifth flow passage;
the sixth heat dissipation plate comprises a sixth flow passage;
the fifth flow passage is communicated with the fourth flow passage through the first connecting pipe, and the sixth flow passage is communicated with the fourth flow passage through the first connecting pipe.
Further, the fourth heat dissipation plate, the fifth heat dissipation plate and the sixth heat dissipation plate are respectively arranged on three surfaces of the battery device, and the fourth heat dissipation plate, the fifth heat dissipation plate and the sixth heat dissipation plate are all connected with the battery device through heat conduction structural glue.
Further, the fourth heat dissipation plate further comprises a first connecting piece, the fourth heat dissipation plate and the first heat dissipation plate are arranged on the same side of the battery device, the fourth heat dissipation plate is connected with the first heat dissipation plate through the first connecting piece, and the first flow channel is communicated with the fourth flow channel through the second connecting pipe.
Another aspect of the present invention is to provide a battery pack, which includes a housing, a tray, and the heat dissipation battery module as described above;
the battery module comprises a tray, a shell, a heat dissipation battery module and a heat dissipation battery, wherein one end of the tray is open, the shell is arranged at the open end of the tray, the shell is connected with the tray to form a containing cavity, and the heat dissipation battery module is arranged in the containing cavity.
Further, the tray comprises a third connecting pipe, a seventh flow channel and a sixth water inlet hole, and the third connecting pipe and the sixth water inlet hole are communicated with the seventh flow channel;
the shell comprises a fourth connecting pipe and an eighth flow passage, and the fourth connecting pipe is communicated with the eighth flow passage;
the fourth connecting pipe is arranged in the sixth water inlet hole, and the seventh flow passage is communicated with the eighth flow passage.
The embodiment of the invention has the following beneficial effects:
1. according to the invention, at least one heat dissipation assembly is arranged, each heat dissipation assembly comprises a plurality of first connecting pipes and at least two heat dissipation plates, and the heat dissipation plates of the heat dissipation assemblies are at least arranged on two surfaces of the battery device, so that the heat dissipation contact area of the battery module is increased, and the heat dissipation capacity of the battery module is improved; and all be provided with the runner in the heating panel, through the first connecting pipe makes the runner in each heating panel communicate each other, and this has realized the balanced effect of the different surface temperature of battery module has also avoided setting up heat radiation structure on every electric core simultaneously, realizes the simplification of battery module structure, the equipment of being convenient for.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment 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 invention, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.
Fig. 1 is a structural diagram of a heat dissipation battery module according to the present embodiment;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a structural view of a battery pack according to the present embodiment;
FIG. 4 is a cross-sectional view of FIG. 3;
fig. 5 is a structural view of a battery pack according to another embodiment.
Wherein the reference numerals in the figures correspond to:
1-a battery module; 2-a first heat sink; 3-a second heat sink; 4-a third heat sink; 5-a fourth heat sink; 6-fifth heat sink; 7-sixth heat sink; 8-a shell; 9-a tray; 11-a first connection pipe; 12-a second connecting tube; 21-a second water inlet hole; 22-a first surface; 23-a second surface; 24-a fourth surface; 25-a fifth connecting tube; 26-a first mounting hole; 51-a fifth water inlet hole; 81-fourth connecting tube; 91-a separator; 92-a third connecting tube; 93-sixth water inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The prior art has the following defects: prior art battery packs often cool the module by securing a liquid cooled plate over the lower tray. However, the liquid cooling plate can only contact the bottom surface of the battery core, the contact area is small, if the cooling fin plate is additionally arranged between the battery cores, more cost is increased, the weight of the whole package is increased, the grouping efficiency is low, the heat transfer effect of the fin plate is not ideal, and the assembly is inconvenient. Or the cooling of the battery module in the prior art is usually through the mode of fixing the water cooling plate at the lower shell, but this kind of mode can only cool off the bottom surface of electric core, and this kind of mode electric core is less with cold drawing area of contact, can't satisfy the requirement of high-power charge-discharge.
Aiming at the defects of the prior art, the at least one heat dissipation assembly is arranged, each heat dissipation assembly comprises a plurality of first connecting pipes and at least two heat dissipation plates, and the heat dissipation plates of the heat dissipation assemblies are at least arranged on two surfaces of the battery device, so that the heat dissipation contact area of the battery module is increased, and the heat dissipation capacity of the battery module is improved; and all be provided with the runner in the heating panel, through the first connecting pipe makes the runner in each heating panel communicate each other, and this has realized the balanced effect of the different surface temperature of battery module has also avoided setting up heat radiation structure on every electric core simultaneously, realizes the simplification of battery module structure, the equipment of being convenient for.
Example 1
Referring to fig. 1 to 5, the present embodiment provides a heat dissipation battery module and a battery pack, where the heat dissipation battery module includes a battery device 1 and a heat dissipation device;
the heat dissipation device comprises at least one heat dissipation component;
every radiator unit all includes a plurality of first connecting pipes 11 and two at least heating panels, radiator unit's heating panel sets up at least two of battery device 1 are surperficial, the inside runner that all is provided with of heating panel is located pass through between the runner of the heating panel of the different surfaces of battery device 11 intercommunication each other.
It should be noted that: because the different surface temperatures of the battery device 1 may be different, the flow channels in the heat dissipation plates on the different surfaces of the battery device 1 are communicated with each other, so that the effect of balancing the different surface temperatures of the battery module is realized.
Specifically, battery device 1 comprises a plurality of electric cores, has avoided setting up heat radiation structure on every electric core in this embodiment, realizes the simplification of battery module structure, the equipment of being convenient for.
Preferably, the heat dissipation device includes a second connection pipe 12 and at least two heat dissipation assemblies, and the at least two heat dissipation assemblies are connected through the second connection pipe 12.
Preferably, the heat dissipation device comprises a first heat dissipation assembly, the first heat dissipation assembly comprises a first heat dissipation plate 2, a second heat dissipation plate 3 and a third heat dissipation plate 4, and the second heat dissipation plate 3 and the third heat dissipation plate 4 are respectively arranged on two sides of the first heat dissipation plate 2;
the first heat dissipation plate 2 includes a first flow passage;
the second heat dissipation plate 3 includes a second flow passage;
the third heat dissipation plate 4 includes a third flow passage;
the second flow passage communicates with the first flow passage through the first connection pipe 11, and the third flow passage communicates with the first flow passage through the first connection pipe 11.
Specifically, the first heat dissipation plate 2 is provided with the first connection pipe 11 and the second connection pipe 12.
Preferably, the first heat dissipation plate 2 further includes a first surface 22, a second surface 23, a third surface and a fourth surface 24 disposed oppositely;
the first surface 22 is also provided with a fifth connecting pipe 25 for connecting with an external water path;
the second surface 23 is further provided with a first mounting hole 26, and a first connecting piece is arranged in the first mounting hole 26;
the third surface is provided with a first water inlet hole, the fourth surface 24 is provided with a second water inlet hole 21, and the first water inlet hole and the second water inlet hole 21 are communicated with the first flow channel.
Preferably, the first heat dissipation plate 2, the second heat dissipation plate 3, and the third heat dissipation plate 4 are respectively provided on three surfaces of the battery device 1; the first heat dissipation plate 2, the second heat dissipation plate 3 and the third heat dissipation plate 4 are connected with the battery device 1 through heat conduction structural glue.
Specifically, the first connecting pipe 11 is disposed on each of the second heat dissipation plate 3 and the third heat dissipation plate 4, the first connecting pipe 11 on the second heat dissipation plate 3 is disposed in the first water inlet hole, and the first connecting pipe 11 on the third heat dissipation plate 4 is disposed in the second water inlet hole 21.
Preferably, the heat dissipation assembly further comprises a second heat dissipation assembly, the second heat dissipation assembly further comprises a fourth heat dissipation plate 5, a fifth heat dissipation plate 6 and a sixth heat dissipation plate 7; the fifth heat dissipation plate 6 and the sixth heat dissipation plate 7 are respectively arranged on two sides of the fourth heat dissipation plate 5;
the fourth heat radiation plate 5 includes a fourth flow passage;
the fifth heat dissipation plate 6 includes a fifth flow passage;
the sixth heat dissipation plate 7 includes a sixth flow passage;
the fifth flow passage is communicated with the fourth flow passage through the first connecting pipe 11, and the sixth flow passage is communicated with the fourth flow passage through the first connecting pipe 11.
Specifically, the fourth heat dissipation plate 5 further includes a third water inlet hole, a fourth water inlet hole and a fifth water inlet hole 51; the fifth heat dissipation plate 6 and the sixth heat dissipation plate 7 are provided with the first connection pipe 11, the first connection pipe 11 on the first heat dissipation plate 2 is arranged in the third water inlet hole, the first connection pipe 11 on the fifth heat dissipation plate 6 is arranged in the fourth water inlet hole, and the first connection pipe 11 on the sixth heat dissipation plate 7 is arranged in the fifth water inlet hole 51.
Specifically, the first connection pipe 11 and the second connection pipe 12 are both fixedly disposed on the corresponding heat dissipation plates.
When the first connection pipe 11 and the second connection pipe 12 are fixedly arranged on the corresponding heat dissipation plate, the first connection pipe 11 or the second connection pipe 12 can be installed as long as being inserted into the water inlet hole on the corresponding heat dissipation plate, which realizes the quick installation of the heat dissipation assembly.
In other embodiments, the first connecting pipe 11 and the second connecting pipe 12 are not fixedly disposed on the corresponding heat dissipation plates, and it is only necessary to ensure that the first connecting pipe 11 and the second connecting pipe 12 enable the flow passages in the plurality of heat dissipation plates to be communicated with each other, so that the installation operation is simpler.
Preferably, the fourth heat dissipation plate 5, the fifth heat dissipation plate 6, and the sixth heat dissipation plate 7 are respectively disposed on three surfaces of the battery device 1, and the fourth heat dissipation plate 5, the fifth heat dissipation plate 6, and the sixth heat dissipation plate 7 are all connected to the battery device 1 by a heat conductive structural adhesive.
Preferably, the fourth heat dissipation plate 5 further includes a first connection member, the fourth heat dissipation plate 5 and the first heat dissipation plate 2 are disposed on the same side of the battery device 1, the fourth heat dissipation plate 5 is connected to the first heat dissipation plate 2 through the first connection member, and the first flow passage and the fourth flow passage are communicated through the second connection pipe 12.
Specifically, the battery device 1 at least includes one layer of battery modules, that is, the battery modules are arranged in a single layer, or the battery modules are arranged in multiple layers, and the arrangement mode is a stacking arrangement.
When the battery device 1 is a single-layer battery module, the first heat dissipation assembly is arranged on the surface of the single-layer battery module, the first heat dissipation plate 2, the second heat dissipation plate 3 and the third heat dissipation plate 4 are respectively arranged on different surfaces of the single-layer battery module, and the height of the first heat dissipation plate 2 is substantially equal to that of the single-layer battery module, that is, the single-layer battery module is provided with a group of heat dissipation assemblies, and the single-layer battery module can also be regarded as being provided with the first heat dissipation assembly.
Specifically, the single-layer battery module includes a fifth surface, a sixth surface, and a seventh surface, the first heat sink 2 is bonded to the fifth surface of the single-layer module, the second heat sink 3 is bonded to the sixth surface of the single-layer module, the third heat sink 4 is bonded to the seventh surface of the single-layer module, and the sixth surface and the seventh surface are oppositely disposed.
Specifically, the length of the first heat dissipation plate 2 is equal to the length of the fifth surface, the length of the second heat dissipation plate 3 is equal to the length of the third heat dissipation plate 4, and the length of the second heat dissipation plate 3 is slightly greater than the length of the sixth surface.
Specifically, the fourth flow channel, the fifth flow channel, and the sixth flow channel may have any shape as long as the heat dissipation capability can be improved.
Specifically, the fourth flow passage includes a sixth passage, a seventh passage, and an eighth passage.
Specifically, the first flow channel, the second flow channel, and the third flow channel may have any shape as long as the heat dissipation capability can be improved.
Preferably, the first flow channel includes a first passage, a second passage, a third passage, a fourth passage, and a fifth passage.
One end of the first passage is communicated with one end of the fourth passage, and the other end of the first passage is communicated with one first water inlet hole; one end of the second passage is communicated with one end of the fifth passage, and the other end of the second passage is communicated with one second water inlet hole 21;
one end of the third passage is communicated with the other second water inlet hole 21, and the other end of the third passage is communicated with the other first water inlet hole.
The first connecting pipe 11 is arranged at the communication position of the first passage and the fourth passage, and the first connecting pipe 11 is arranged at the communication position of the second passage and the fifth passage;
the other end of the fourth passage communicates with one end of the sixth passage, and the other end of the fifth passage communicates with one end of the seventh passage;
the other end of the sixth passage is communicated with one fourth water inlet hole, and the other end of the seventh passage is communicated with the fifth water inlet hole 51; one end of the eighth passage is communicated with the other fourth water inlet hole, and the other end of the eighth passage is communicated with the other fifth water inlet hole 51.
The flowing process of the cooling liquid of the single-layer module comprises the following steps: the cooling liquid enters the first flow channel of the first heat dissipation plate 2 through the fifth connecting pipe 25, and then enters the second heat dissipation plate 3 and the third heat dissipation plate 4 respectively; when the coolant enters the second heat dissipation plate 3: the cooling liquid enters the second flow channel in the second heat dissipation plate 3 from one first water inlet hole, and then flows back to the first flow channel in the first heat dissipation plate 2 from the other first water inlet hole;
when the coolant enters the third heat dissipation plate 4: the cooling liquid enters the third flow channel of the third heat dissipation plate 4 through one of the second water inlet holes 21, and the cooling liquid flows back to the first flow channel of the first heat dissipation plate 2 through the other second water inlet hole 21.
Specifically, the cooling liquid is any liquid capable of achieving a cooling function, and in this embodiment, the cooling liquid is water.
In other embodiments, the battery module may be configured to be double-sided cooled: the cooling plate replaces the module side plate, and the first heat dissipation plate 2 is used for collecting the flow.
In another embodiment, the battery module may be further configured to be three-sided cooled: the cooling plate replaces a side plate and a bottom plate of the module, and the first heat dissipation plate 2 is used for collecting current.
Specifically, the first passage and the second passage of the first flow channel in the first heat dissipation plate 2 are both communicated with the third passage, thereby reducing the effect of flow resistance in the flow channel.
In other embodiments, it may be provided that: the first passage of the first flow channel is not communicated with the third passage, and the second passage is not communicated with the third passage.
In other embodiments, when the battery device 1 is a single-layer battery module, a plurality of sets of heat dissipation assemblies are disposed on the surface of the single-layer battery module, that is, the height of the heat dissipation plate is much smaller than the height of the single-layer battery module.
When the battery device 1 is a multi-layer battery module (at least two layers), the present embodiment is described with two layers, and the double-layer battery module may be regarded as a single-layer battery module stacked in two layers. The first heat dissipation assembly is arranged on the surface of one single-layer battery module, the first heat dissipation plate 2, the second heat dissipation plate 3 and the third heat dissipation plate 4 are respectively arranged on different surfaces of the single-layer battery module, and the height of the first heat dissipation plate 2 is basically equal to that of the single-layer battery module, namely, the single-layer battery module is provided with one group of heat dissipation assemblies, or the single-layer battery module is only provided with the first heat dissipation assembly;
the second heat dissipation assembly is arranged on the surface of the other single-layer battery module, the fourth heat dissipation plate 5, the fifth heat dissipation plate 6 and the sixth heat dissipation plate 7 are arranged on different surfaces of the other single-layer battery module, and the height of the fourth heat dissipation plate 5 is substantially equal to that of the single-layer battery module, that is, the single-layer battery module is provided with one set of heat dissipation assemblies, or the single-layer battery module is provided with only the second heat dissipation assembly.
Specifically, when the battery device 1 is provided with a plurality of layers of battery modules, each layer of battery module 1 is provided with one heat dissipation assembly, and the heat dissipation assemblies are communicated with each other through the second connection pipe 12.
Wherein, a single-layer module comprises a fifth surface, a sixth surface and a seventh surface, the first heat dissipation plate 2 is bonded with the fifth surface of the single-layer module, the second heat dissipation plate 3 is bonded with the sixth surface of the single-layer module, the third heat dissipation plate 4 is bonded with the seventh surface of the single-layer module, and the sixth surface and the seventh surface are oppositely arranged.
The other single-layer module comprises an eighth surface, a ninth surface and a tenth surface, wherein the eighth surface and the fifth surface are in the same plane, the ninth surface and the sixth surface are in the same plane, and the tenth surface and the seventh surface are in the same plane.
The fourth heat dissipation plate 5 is bonded to the eighth surface, the fifth heat dissipation plate 6 is bonded to the ninth surface, and the sixth heat dissipation plate 7 is bonded to the tenth surface.
Specifically, the length of the first heat dissipation plate 2 is equal to the length of the fifth surface, the length of the second heat dissipation plate 3 is equal to the length of the third heat dissipation plate 4, and the length of the second heat dissipation plate 3 is slightly greater than the length of the sixth surface.
The length of the first heat sink 2 is equal to the length of the fourth heat sink 5, the length of the second heat sink 3 is equal to the length of the fifth heat sink 6, and the length of the third heat sink 4 is equal to the length of the sixth heat sink 7.
Specifically, the fourth heat dissipation plate 5, the fifth heat dissipation plate 6, and the sixth heat dissipation plate 7 are bonded to three surfaces of the battery module 1 by a heat conductive adhesive.
The number of the third water inlet holes, the fourth water inlet holes and the fifth water inlet holes 51 is two.
The flowing process of the cooling liquid of the double-layer module comprises the following steps: the cooling liquid enters the first flow channel of the first heat dissipation plate 2 through the fifth connecting pipe 25, and then enters the second heat dissipation plate 3, the third heat dissipation plate 4 and the fourth heat dissipation plate 5 respectively; when the coolant enters the second heat dissipation plate 3: the cooling liquid enters the second flow channel in the second heat dissipation plate 3 from one first water inlet hole, and then flows back to the first flow channel in the first heat dissipation plate 2 from the other first water inlet hole;
when the coolant enters the third heat dissipation plate 4: the cooling liquid enters a third flow channel in the third heat dissipation plate 4 from one second water inlet hole 21, and the cooling liquid flows back to the first flow channel in the first heat dissipation plate 2 from the other second water inlet hole 21;
when the cooling liquid enters the fourth heat dissipation plate 5: the cooling liquid enters the fourth flow channel through the third water inlet hole, then enters the fifth flow channel and the sixth flow channel respectively, and flows back to the fourth flow channel; and finally, the cooling liquid flows back to the first flow channel through the third water inlet hole.
In other embodiments, when the battery device 1 is a multi-layer battery module, a plurality of sets of heat dissipation assemblies are disposed on the surface of one single-layer battery module, that is, the height of the heat dissipation plate is much smaller than that of the single-layer battery module.
Specifically, the third heat dissipation plate 4 and the sixth heat dissipation plate 7 are not directly communicated, and are communicated through the first heat dissipation plate 2 and the fourth heat dissipation plate 5; and the second heat dissipation plate 3 and the fifth heat dissipation plate 6 are not directly communicated, and are communicated through the first heat dissipation plate 2 and the fourth heat dissipation plate 5.
Another aspect of the present invention is to provide a battery pack, which includes a housing 8, a tray 9, and the heat dissipation battery module as described above;
In this embodiment, the battery pack is provided with the flow channels on both the tray 9 and the housing 8, which increases the heat dissipation contact area of the battery module and improves the heat dissipation capability of the battery pack; and the seventh flow channel and the eighth flow channel are communicated with each other, so that the effect of balancing the temperature of different surfaces of the battery pack is realized.
Preferably, the tray 9 includes a third connecting pipe 92, a seventh flow passage and a sixth water inlet hole 93, and both the third connecting pipe 92 and the sixth water inlet hole 93 are communicated with the seventh flow passage;
the housing 8 comprises a fourth connecting pipe 81 and an eighth flow passage, and the fourth connecting pipe 81 is communicated with the eighth flow passage;
the fourth connecting pipe 81 is disposed in the sixth water inlet hole 93, and the seventh flow passage is communicated with the eighth flow passage.
Specifically, the first connecting pipe 11, the second connecting pipe 12, the third connecting pipe 92, the fourth connecting pipe 81 and the fifth connecting pipe 25 are all provided with a sealing ring for sealing a joint of the connecting pipe and the heat dissipation plate, so as to prevent liquid in the heat dissipation plate from flowing out.
Specifically, a plurality of partition boards 91 are arranged on the tray 9, and the partition boards 91 divide the tray 9 into a plurality of cavities; one of the battery devices 1 is disposed in one of the cavities.
Specifically, the sixth passage and the seventh passage in the fourth heat radiation plate 5 are both communicated with the eighth passage, thereby reducing the effect of flow resistance in the flow passage.
In other embodiments, it may be provided that: the sixth passage is not communicated with the eighth passage, and the seventh passage is not communicated with the eighth passage.
Specifically, the partition plates 91 are integrally formed with the tray 9, and the number of the cavities corresponds to the number of the battery modules.
Specifically, the housing 8 is hermetically connected to the tray 9, the third connecting pipe 92 is used for introducing external coolant into the seventh flow channel and discharging the coolant in the seventh flow channel, and the seventh flow channel is respectively communicated with the third connecting pipe 92 and the sixth water inlet hole 93; the fourth connection pipe 81 is disposed in the sixth water inlet hole 93, the coolant can flow into the eighth flow channel in the housing 8 through the sixth water inlet hole 93, and the coolant can flow back to the seventh flow channel through the eighth flow channel.
Specifically, the seventh flow channel is disposed inside the tray 9 and used for dissipating heat of the battery module 1.
Specifically, a heat conduction and insulation material layer is arranged between the shell 8 and the battery module 1, and a heat conduction and insulation material layer is also arranged between the tray 9 and the battery module 1.
In other embodiments, the battery module 1 may also be a battery module that does not include a heat dissipation structure.
In other embodiments, when the arrangement space is limited, the seventh flow channel may not be provided in the tray 9, and only the housing 8 is used for heat dissipation, in this case, the tray 9 only plays a role in structural strength and sealing, and the water inlet/outlet of the battery pack 9 can be directly led out from the housing 8; or only the tray 9 is used for heat dissipation, and all the above combination changes are within the scope of the present invention.
In this embodiment, be not limited to perpendicular or the tiling of electric core and arrange, according to the whole package arrangement structure of electric core size and the difference of heat dissipation demand all can the deformation use.
Although the present invention has been described by way of preferred embodiments, the present invention is not limited to the embodiments described herein, and various changes and modifications may be made without departing from the scope of the present invention.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A heat dissipation battery module is characterized by comprising a battery device (1) and a heat dissipation device;
the heat dissipation device comprises at least one heat dissipation component;
every radiator unit all includes a plurality of first connecting pipes (11) and two at least heating panels, radiator unit's heating panel sets up at least two of battery device are surperficial, the inside runner that all is provided with of heating panel is located pass through between the runner of the heating panel of the different surfaces of battery device first connecting pipe (11) communicate each other.
2. The heat dissipating battery module of claim 1, wherein the heat dissipating device comprises a second connecting tube (12) and at least two heat dissipating components connected to each other through the second connecting tube (12).
3. The heat dissipation battery module as recited in claim 2, wherein the heat dissipation device comprises a first heat dissipation assembly, the first heat dissipation assembly comprises a first heat dissipation plate (2), a second heat dissipation plate (3) and a third heat dissipation plate (4), and the second heat dissipation plate (3) and the third heat dissipation plate (4) are respectively disposed at two sides of the first heat dissipation plate (2);
the first heat dissipation plate (2) comprises a first flow passage;
the second heat dissipation plate (3) comprises a second flow passage;
the third heat dissipation plate (4) comprises a third flow passage;
the second flow channel communicates with the first flow channel via the first connecting pipe (11), and the third flow channel communicates with the first flow channel via the first connecting pipe (11).
4. The heat-dissipating battery module according to claim 3, wherein the first heat-dissipating plate (2) further comprises a first surface (22), a second surface (23), a third surface and a fourth surface (24) which are oppositely disposed;
the first surface (22) is also provided with a fifth connecting pipe (25) for connecting with an external water path;
the second surface (23) is also provided with a first mounting hole (26), and a first connecting piece is arranged in the first mounting hole (26);
the third surface is provided with a first water inlet hole, the fourth surface (24) is provided with a second water inlet hole (21), and the first water inlet hole and the second water inlet hole (21) are communicated with the first flow channel.
5. The heat-dissipating battery module according to claim 4, wherein the first heat-dissipating plate (2), the second heat-dissipating plate (3), and the third heat-dissipating plate (4) are provided on three surfaces of the battery device (1), respectively; the first heat dissipation plate (2), the second heat dissipation plate (3) and the third heat dissipation plate (4) are connected with the battery device (1) through heat conduction structural glue.
6. The heat dissipation battery module as recited in claim 5, wherein the heat dissipation assembly further comprises a second heat dissipation assembly, the second heat dissipation assembly further comprises a fourth heat dissipation plate (5), a fifth heat dissipation plate (6) and a sixth heat dissipation plate (7); the fifth heat dissipation plate (6) and the sixth heat dissipation plate (7) are respectively arranged on two sides of the fourth heat dissipation plate (5);
the fourth heat dissipation plate (5) comprises a fourth flow channel;
the fifth heat dissipation plate (6) comprises a fifth flow channel;
the sixth heat dissipation plate (7) includes a sixth flow passage;
the fifth flow passage is communicated with the fourth flow passage through the first connecting pipe (11), and the sixth flow passage is communicated with the fourth flow passage through the first connecting pipe (11).
7. The heat-dissipating battery module according to claim 6, wherein the fourth heat-dissipating plate (5), the fifth heat-dissipating plate (6), and the sixth heat-dissipating plate (7) are disposed on three surfaces of the battery pack (1), and the fourth heat-dissipating plate (5), the fifth heat-dissipating plate (6), and the sixth heat-dissipating plate (7) are bonded to the battery pack (1) by a heat-conductive adhesive.
8. The heat dissipation battery module as recited in claim 7, wherein the fourth heat dissipation plate (5) further comprises a first connection member, the fourth heat dissipation plate (5) and the first heat dissipation plate (2) are disposed on the same side of the battery device (1), the fourth heat dissipation plate (5) is connected to the first heat dissipation plate (2) through the first connection member, and the first flow passage and the fourth flow passage are communicated through the second connection pipe (12).
9. A battery pack characterized by comprising a case (8), a tray (9) and the heat dissipating battery module according to any one of claims 1 to 8;
tray (9) one end opening, casing (8) set up the open end of tray (9), casing (8) with form after tray (9) are connected and hold the chamber, the battery module that dispels the heat sets up hold the intracavity.
10. A battery pack, as claimed in claim 9, characterized in that said tray (9) comprises a third connecting tube (92), a seventh flow channel and a sixth water inlet hole (93), said third connecting tube (92) and said sixth water inlet hole (93) being in communication with said seventh flow channel;
the shell (8) comprises a fourth connecting pipe (81) and an eighth flow passage, and the fourth connecting pipe (81) is communicated with the eighth flow passage;
the fourth connecting pipe (81) is arranged in the sixth water inlet hole (93), and the seventh flow channel is communicated with the eighth flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010423190.3A CN111555000A (en) | 2020-05-19 | 2020-05-19 | Heat dissipation battery module and battery package |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010423190.3A CN111555000A (en) | 2020-05-19 | 2020-05-19 | Heat dissipation battery module and battery package |
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| CN111555000A true CN111555000A (en) | 2020-08-18 |
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| CN202010423190.3A Pending CN111555000A (en) | 2020-05-19 | 2020-05-19 | Heat dissipation battery module and battery package |
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