CN218351537U - Novel battery system - Google Patents

Novel battery system Download PDF

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Publication number
CN218351537U
CN218351537U CN202221564781.3U CN202221564781U CN218351537U CN 218351537 U CN218351537 U CN 218351537U CN 202221564781 U CN202221564781 U CN 202221564781U CN 218351537 U CN218351537 U CN 218351537U
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China
Prior art keywords
battery
liquid cooling
cooling plate
box body
battery module
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CN202221564781.3U
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Chinese (zh)
Inventor
宋佩耕
王楠
姚阳
梁荣军
张彧
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Tianjin Lishen New Energy Technology Co ltd
Lishen Qingdao New Energy Co Ltd
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Lishen Qingdao New Energy Co Ltd
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Priority to CN202221564781.3U priority Critical patent/CN218351537U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model discloses a novel battery system, which comprises a box body; a plurality of longitudinal battery modules are arranged in the box body; the left side and the right side of each battery module are respectively provided with a liquid cooling plate; each battery module comprises a plurality of battery cells connected in series, and an aerogel cushion is arranged between any two adjacent battery cells; the narrow side faces of any two adjacent battery cells are oppositely arranged; the outer side surface of the periphery of each battery cell is wrapped with a PET (polyethylene terephthalate) insulating film, and the bottom surface of each battery cell is not wrapped; the bottom of each battery module is respectively adhered with an anti-adhesive tape; a hollow opening is arranged at the position of each anti-adhesive sticker corresponding to the bottom surface of each battery cell; the bottom surface of each electric core is bonded with the bottom plate of the box body; the bottom of each battery module is clamped with the limiting clamping groove of the box body bottom plate; the utility model discloses can guarantee the abundant heat dissipation to every electric core in the battery module, effectively reduce heat-conduction, maintain the use of the higher multiplying power of electric core, can solve electric core thermal runaway back to adjacent module transmission heat, effectively guarantee to avoid taking place the thermal diffusion problem between the battery module.

Description

Novel battery system
Technical Field
The utility model relates to a battery module technical field especially relates to a novel battery system.
Background
At present, lithium ion batteries have the advantages of high specific energy, many recycling times, long storage time and the like, are widely applied to portable electronic equipment (such as mobile phones, digital cameras and portable computers), and are also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like, so that the performance requirement on the lithium ion batteries is higher and higher.
The safety problem of the lithium battery system used by the new energy vehicle is particularly important, especially for the ternary battery cell, the thermal runaway is severe, along with the frequent occurrence of the thermal runaway problem at the market end, the requirement on the system for preventing the thermal diffusion is higher and higher, the thermal diffusion is not generated as the final target, the cruising mileage of the whole vehicle is required to be ensured, and the energy density of the battery is required to maintain a higher level.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel battery system to the technical defect that prior art exists.
Therefore, the utility model provides a novel battery system, which comprises a hollow box body with an opening at the top;
a plurality of battery modules which are longitudinally distributed in parallel are arranged in the box body;
the left side and the right side of each battery module are respectively provided with a vertically distributed liquid cooling plate;
for each battery module, the battery module respectively comprises a plurality of battery cores which are connected in series and longitudinally distributed, the central points of the plurality of battery cores are positioned on the same longitudinal straight line, and one aerogel pad is arranged on one side, opposite to any two adjacent battery cores;
for each battery module, the narrow sides of any two adjacent battery cells are oppositely arranged;
each aerogel cushion comprises a square-shaped silica gel foam ring and a rectangular aerogel block, and the aerogel blocks are positioned on the inner side of the silica gel foam ring;
the outer side surfaces of the periphery of each battery cell are respectively wrapped with a PET insulating film, and the bottom surface of each battery cell is not wrapped with a PET insulating film;
the bottom of each battery module is respectively bonded with a longitudinally distributed anti-adhesive sticker with an insulation function;
each anti-glue paste is provided with a hollow opening at the position corresponding to the bottom surface of each electric core;
the bottom surface of each battery cell in the battery module is bonded with the upper surface of the bottom plate of the box body;
the bottom plate of the box body is provided with a strip-shaped and longitudinally distributed limiting clamping groove at the position corresponding to the bottom of each battery module;
the bottom of each battery module is clamped with the limiting clamping groove on the bottom plate of the box body;
for each battery module, any two adjacent battery cells included in the battery module are respectively connected with one busbar in a laser welding mode;
each liquid cooling plate is of a hollow structure, and a hollow cavity which is communicated with the front and the back is formed in the liquid cooling plate;
a water inlet joint and a water outlet joint of the liquid cooling plate are respectively arranged at the middle positions of the front side and the rear side of each liquid cooling plate;
the front end and the rear end of a left panel of the box body are respectively provided with a box body water inlet and a box body water outlet;
the front side and the rear side of the inner cavity of the box body are respectively provided with a liquid cooling plate connecting water pipe which is transversely distributed;
each liquid cooling plate is connected with a water pipe and is respectively communicated with the water inlet and outlet joints of the liquid cooling plates on the adjacent liquid cooling plates.
Preferably, the front side and the rear side of the silica gel foam ring and the silica gel block are respectively provided with a plastic packaging film;
a double-sided adhesive tape is arranged on the outer side surface of the plastic packaging film;
the plastic packaging film is bonded with the adjacent electric core through a double-sided adhesive tape.
Preferably, the hollow-out gaps for preventing the glue adhesion are arranged corresponding to the bottom surface of each battery cell which is not wrapped by the PET insulating film;
the shape and size of the hollow-out gap of the anti-adhesive tape are correspondingly matched with the shape and size of the bottom surface of each electric core.
Preferably, the bottom plate of the box body is provided with a strip-shaped and longitudinally distributed concave groove at the position corresponding to the bottom of each liquid cooling plate;
the bottom of the liquid cooling plate is correspondingly embedded into the concave groove.
Preferably, each liquid cooling plate connecting water pipe is provided with a plurality of water receiving ports, and each water receiving port is communicated with a liquid cooling plate water inlet and outlet connector on the adjacent liquid cooling plate through a liquid cooling plate connector.
Preferably, the water inlet and the water outlet of each box body are communicated with the water pipe connected with the adjacent liquid cooling plate through an intermediate connecting pipe.
Preferably, the water inlets and the water outlets of the two boxes are respectively communicated with a liquid outlet and a liquid inlet of an external cooling pump through hollow connecting pipelines, and the liquid cooling plate is connected with the water pipe and is filled with cooling liquid in advance.
Preferably, the top of the box body is provided with a box body upper cover.
The upper cover of the box body is provided with a total anode output end and a total cathode output end which are used for connecting external electric equipment;
the positive electrode output ends between any two adjacent battery modules are respectively connected through an inter-module positive electrode bus bar;
the negative electrode output ends between any two adjacent battery modules are respectively connected through an inter-module negative electrode bus bar;
the total positive output end is in conductive connection with the positive bus bar between the modules;
the total negative output is electrically connected to the negative bus between the modules.
By above the utility model provides a technical scheme is visible, compare with prior art, the utility model provides a novel battery system, its structural design science, on the one hand, electric core in the battery module adopts the mode of vertically arranging and the relative setting of narrow side, area of contact between electric core and electric core is compared and is dwindled in traditional scheme, heat-conduction has effectively been reduced, prevent the thermal diffusion, on the other hand, two big sides set up liquid cooling plate about every battery module, not only guarantee the abundant heat dissipation to every electric core in the battery module, maintain the use of the higher multiplying power of electric core, can solve electric core thermal runaway again and transmit the heat to adjacent module, further block the thermal diffusion, great practical significance has.
In addition, according to the invention, the problem of thermal diffusion between the battery modules can be further effectively avoided by arranging the liquid cooling plate between the battery modules and the aerogel pad between the battery cores.
In addition, for the battery module and the box body of the battery module box, the battery module and the box body are assembled in a bottom glue pouring mode, and the box body is provided with a corresponding limiting structure, so that the box inlet position of the battery module is ensured. Meanwhile, the specially designed glue prevention paste is arranged at the bottom of the battery module, so that glue between the box body and the battery module can be prevented from being soaked into a gap between the battery cores of the module, and the stress of the battery cores in the circulating process is prevented from being influenced (if the glue at the bottom is soaked into a gap between the battery cores, the large surface of the battery cores is unevenly stressed, local stress exists, the integral circulating performance is influenced, and the circulating times are reduced).
The invention is a scheme design of ternary CTP, compared with the traditional CTP scheme, the invention has convenient assembly and can effectively solve the problem of thermal runaway.
Drawings
Fig. 1 is a top view of the novel battery system provided by the present invention when the upper cover of the box body is removed;
fig. 2 is a schematic view of a three-dimensional assembly structure of any battery module in the novel battery system provided by the present invention;
fig. 3 is a schematic diagram illustrating a three-dimensional exploded view of any battery module in the novel battery system provided by the present invention;
fig. 4 is a sectional view of an installation state of the bottom of any battery module and a limiting clamping groove on the box body in the novel battery system provided by the present invention;
fig. 5 is a schematic view illustrating an exploded structure of any one aerogel pad in the novel battery system provided by the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 5, the present invention provides a novel battery system, which includes a hollow box body 1 with an open top;
a plurality of battery modules 2 which are longitudinally distributed in parallel are arranged in the box body 1;
the left side and the right side of each battery module 2 are respectively provided with a vertically distributed liquid cooling plate 22;
it is required to explain, right the utility model discloses, through two big sides set up liquid cooling plate about every battery module, not only guarantee to the abundant heat dissipation of every electric core in the battery module, maintain the use of the higher multiplying power of electric core, can solve electric core thermal runaway again and to adjacent module transmission heat, block the thermal diffusion.
For each battery module 2, the battery module comprises a plurality of battery cells 21 which are connected in series and longitudinally distributed, the central points of the plurality of battery cells 21 are located on the same longitudinal straight line, and one aerogel pad 24 is arranged on one side, opposite to any two adjacent battery cells 21;
for each battery module 2, the narrow sides of any two adjacent battery cells are arranged oppositely (i.e., arranged oppositely and face to face);
what need to explain is, to every battery module 2, adopt the narrow limit to arrange the constitution mode of arranging (the narrow side is arranged) between two arbitrary adjacent electric cores, the narrow side of two arbitrary adjacent electric cores sets up relatively, can make the area of contact between electric core and electric core compare in traditional scheme and reduce, has effectively reduced heat-conduction, prevents the heat diffusion.
Each aerogel pad 24 comprises a square-shaped silica gel foam ring 241 and a rectangular aerogel block 242, and the aerogel block 242 is located on the inner side of the silica gel foam ring 241;
it should be noted that, to the utility model discloses, through aerogel pad 24, can absorb the partial expansive force of electric core, can insulate against heat again, block thermal diffusion.
It should be noted that, in the present invention, the main function of the silica gel foam ring 241 has two aspects, on one hand, a certain thickness space can be provided for the middle aerogel when the module is assembled, so as to ensure that the aerogel is not compressed to affect the heat insulation effect; on the other hand, the cotton circle of silica gel bubble has guaranteed the clearance between the electric core, provides the space for the breathing inflation of battery, and silica gel has certain compressibility in addition, guarantees that electric core can not receive extra stress.
The utility model discloses in, aerogel piece 242 main act is thermal-insulated, prevents to play the effect of heat separation with the electric core on the next door of heat express delivery after electric core thermal runaway.
In the present invention, in particular, referring to fig. 5, the front and back sides of the silica gel foam ring 241 and the aerogel block 242 are respectively provided with a plastic film 243;
a double-sided adhesive tape is arranged on the outer side surface of the plastic packaging film 243;
the plastic packaging film 243 is bonded with the adjacent electric core 21 through a double-sided adhesive tape.
It should be noted that, in the present invention, in particular, the silicone bubble cotton ring 241 and the silicone gel block 242 are only connected in contact, but the positions of the two are ensured by the way of the plastic film 243 around the two. Meanwhile, a double-sided adhesive tape is attached to the outside of the plastic packaging film 243 for adhering two adjacent battery cells.
The outer side surfaces of the periphery of each battery cell 21 are respectively wrapped with a PET insulating film (namely a polyethylene glycol terephthalate film), and the bottom surface of each battery cell 21 is not wrapped with the PET insulating film;
it should be noted that, the utility model is a design scheme specially for ternary battery cell; electric core adopts formula of windowing diolame structure, and the film is not wrapped to the electric core bottom, can guarantee the strong bonding force between the bottom plate of electric core and box. The function of the PET insulating film is insulation.
It should be noted that, to the utility model discloses, because this battery module is fixed only for glue with the box, do not have other fixed modes such as fastener, consequently need guarantee that bonding property is enough strong, the capsule mainly is the tripartite with the influence of not the capsule to adhesion: firstly, the glue has a large difference in bonding force between metal and a PET (polyethylene terephthalate) insulating film, the force for bonding the metal is basically 3-5 times that for bonding the PET insulating film, and the difference is obvious. Secondly, the PET insulating film has poor material strength, and can be damaged under a certain acting force, so that the bonding failure is caused. And thirdly, the PET insulating film is bonded with the battery core by a double-sided adhesive tape, the bonding force of the double-sided adhesive tape is low, and the PET insulating film can be separated from the battery core under a certain acting force.
The bottom of each battery module 2 is respectively bonded with a longitudinally distributed anti-adhesive tape 25 with an insulation function;
each anti-glue sticker 25 is provided with a hollow opening 251 at a position corresponding to the bottom surface of each battery cell 21;
the bottom surface of each electric core 21 in the battery module 2 is bonded with the upper surface of the bottom plate of the box body 1 (specifically, bonded by structural adhesive);
a bottom plate of the box body 1 is provided with a strip-shaped and longitudinally distributed limiting clamping groove 101 at the position corresponding to the bottom of each battery module 2;
the bottom of each battery module 2 is clamped with the limiting clamping groove 101 on the bottom plate of the box body 1.
In the present invention, in particular, the hollowed-out opening 251 of the glue-proof sticker 25 is arranged corresponding to the bottom surface of each cell 21 which is not wrapped by the PET insulating film;
the shape and size of the hollow opening 251 of the anti-adhesive tape 25 are correspondingly matched with the shape and size of the bottom surface of each battery cell 21. Therefore, when the anti-adhesive tape 25 is adhered to the bottom of the battery module, the position of the hollow opening 251 of the anti-adhesive tape 25 coincides with the position of the bottom surface of the battery cell, on which the PET insulating film is not adhered.
The utility model discloses in, specifically realize, to every battery module 2, two arbitrary adjacent electric cores 21 that it includes are connected with a busbar 23 (like the aluminium bar) through the mode of laser welding respectively. Therefore, series connection among a plurality of battery cores in the battery module can be realized, and an electric connection path in the battery module is ensured.
In the utility model, in the concrete implementation, the bottom plate of the box body 1 is respectively provided with a strip-shaped and longitudinally distributed concave groove at the position corresponding to the bottom of each liquid cooling plate 22;
the bottom of the liquid cooling plate 22 is correspondingly embedded into the concave groove.
In the concrete realization, the liquid cooling plate is middle section bar design, has L shape fluting design in the bottom of liquid cooling plate for it is spacing to assemble with the concave groove on the box 1.
In particular, each liquid cooling plate 22 is a hollow structure, and a hollow cavity which is through from front to back is formed inside the liquid cooling plate;
the middle positions of the front side and the rear side of each liquid cooling plate 22 are respectively provided with a liquid cooling plate water inlet and outlet joint 220.
In the utility model, in the concrete implementation, the front and the rear ends of the left panel of the box body 1 are respectively provided with a box body water inlet and outlet 11;
a liquid cooling plate connecting water pipe 13 which is transversely distributed is respectively arranged at the front side and the rear side of the inner cavity of the box body 1;
each liquid cooling plate is connected with a water pipe 13 and is respectively communicated with the water inlet and outlet connectors 220 of the liquid cooling plates 22 adjacent to each other; the method specifically comprises the following steps: each liquid cooling plate connecting water pipe 13 is provided with a plurality of water receiving ports, and each water receiving port is respectively communicated with a liquid cooling plate water inlet and outlet joint 220 on the adjacent liquid cooling plate 22 through a liquid cooling plate joint.
In the concrete implementation, each box water inlet/outlet 11 is communicated with the adjacent liquid cooling plate connecting water pipe 13 through an intermediate connecting pipe 12.
It should be noted that, in the implementation, the two tank water inlets and outlets 11 are respectively communicated with a liquid outlet and a liquid inlet of an external cooling pump (such as a water pump) through hollow connecting pipelines, and the liquid cooling plate connecting water pipe 13 and the liquid cooling plate are filled with cooling liquid in advance.
The coolant is a flame-retardant coolant or water. Wherein, the effect of external cooling pump (like the water pump) is for the connecting tube, the liquid cooling board is connected the water pipe and the interior coolant liquid of water-cooling board provides circulation power to guarantee that the coolant liquid can flow in being connected the water pipe by liquid cooling board and hollow liquid cooling board, and steerable coolant liquid's velocity of flow. In the concrete implementation, a radiator and a heater are installed on a connecting pipeline between the box body water inlet/outlet 11 and an external cooling pump (such as a water pump) so as to conveniently perform heat dissipation treatment on the cooling liquid in summer and perform heating treatment on the cooling liquid in winter.
The utility model discloses in, on specifically realizing, the material of preventing gluing 25 should have certain structural strength and can make the thinner material of thickness for insulating, body, like PC, PP etc. can prevent effectively that the glue of bottom half (the glue between battery module bottom and the bottom half upper surface promptly) from soaking in the clearance of the electric core in the module, avoids influencing the atress of electric core circulation in-process.
It should be noted that the utility model discloses in, the fixed mode between box and the battery module adopts spacing mode of adding glue, all is equipped with the fluting structure in the relevant position of the liquid cold plate of box and module, guarantees the fixed when the module is gone into the case.
It should be noted that the utility model discloses in, the left surface board of box is equipped with two box business turn over mouths 11, and the liquid cooling board through intermediate junction pipe and liquid cooling board connecting water pipe 13 and each battery module links to each other, dispels the heat.
The utility model discloses in, in specifically realizing, the top of box 1 is provided with (specifically can be the joint or through bolt fixed connection) a box upper cover.
In a concrete implementation, a total positive output end (specifically, a binding post) and a total negative output end (specifically, a binding post) are arranged on the upper cover of the box body and are used for connecting external electric equipment;
the positive electrode output ends between any two adjacent battery modules are respectively connected through an inter-module positive electrode bus bar;
the negative electrode output ends between any two adjacent battery modules are respectively connected through an inter-module negative electrode bus bar;
the total positive output end is in conductive connection with the positive bus bar between the modules;
the total cathode output is electrically connected to the inter-module cathode bus.
It should be noted that, to the utility model discloses a battery system, total positive output and total negative output are battery system's total positive, total negative output, through the parallelly connected of battery module group between the positive busbar between a plurality of modules and negative busbar between a plurality of modules, have guaranteed the electric connection route in the battery system.
To sum up, compare with prior art, the utility model provides a pair of novel battery system, its structural design science, on the one hand, electric core in the battery module adopts the mode of vertically arranging and narrow side sets up relatively, area of contact between electric core and electric core is compared and is dwindled in traditional scheme, heat-conduction has effectively been reduced, prevent the thermal diffusion, on the other hand, two sides set up the liquid cold plate about through at every battery module, not only guarantee the abundant heat dissipation to every electric core in the battery module, maintain the use of the higher multiplying power of electric core, can solve electric core thermal runaway again and transmit the heat to adjacent module, further block the thermal diffusion, great practical significance has.
In addition, according to the invention, the problem of thermal diffusion between the battery modules can be further effectively avoided by arranging the liquid cooling plate between the battery modules and the aerogel pad between the battery cores.
In addition, according to the invention, the battery module and the box body are assembled in a bottom glue pouring mode, and the box body is provided with a corresponding limiting structure, so that the position of the module entering the box is ensured. Meanwhile, the specially designed glue prevention paste is arranged at the bottom of the battery module, so that glue between the box body and the battery module can be prevented from being soaked into a gap between the battery cores of the module, and the stress of the battery cores in the circulating process is prevented from being influenced (if the glue at the bottom is soaked into a gap between the battery cores, the large surface of the battery cores is unevenly stressed, local stress exists, the integral circulating performance is influenced, and the circulating times are reduced).
The invention is a scheme design of ternary CTP, compared with the traditional CTP scheme, the invention has convenient assembly and can effectively solve the problem of thermal runaway.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A novel battery system is characterized by comprising a hollow box body (1) with an open top;
a plurality of battery modules (2) which are longitudinally distributed in parallel are arranged in the box body (1);
the left side and the right side of each battery module (2) are respectively provided with a vertically distributed liquid cooling plate (22);
for each battery module (2), the battery module respectively comprises a plurality of battery cores (21) which are connected in series and longitudinally distributed, the central points of the plurality of battery cores (21) are positioned on the same longitudinal straight line, and one aerogel pad (24) is arranged on one side, opposite to any two adjacent battery cores (21);
for each battery module (2), the narrow sides of any two adjacent battery cells are oppositely arranged;
each aerogel pad (24) comprises a square-shaped silica gel foam ring (241) and a rectangular aerogel block (242), and the aerogel blocks (242) are positioned on the inner side of the silica gel foam ring (241);
the outer side surfaces of the periphery of each battery cell (21) are respectively wrapped with a PET (polyethylene terephthalate) insulating film, and the bottom surface of each battery cell (21) is not wrapped with the PET insulating film;
the bottom of each battery module (2) is respectively bonded with a longitudinally distributed anti-adhesive sticker (25) with an insulating function;
each anti-glue paste (25) is provided with a hollow opening (251) at a position corresponding to the bottom surface of each battery cell (21);
the bottom surface of each battery cell (21) in the battery module (2) is bonded with the upper surface of the bottom plate of the box body (1);
a bottom plate of the box body (1) is provided with a strip-shaped and longitudinally distributed limiting clamping groove (101) at a position corresponding to the bottom of each battery module (2);
the bottom of each battery module (2) is clamped with a limiting clamping groove (101) on the bottom plate of the box body (1);
for each battery module (2), any two adjacent battery cores (21) are respectively connected with one busbar (23) in a laser welding mode;
each liquid cooling plate (22) is of a hollow structure, and a hollow cavity which is communicated from front to back is formed in the liquid cooling plate;
a water inlet joint and a water outlet joint (220) of the liquid cooling plate are respectively arranged at the middle positions of the front side and the rear side of each liquid cooling plate (22);
a box body water inlet and outlet (11) is respectively arranged at the front end and the rear end of a left panel of the box body (1);
the front side and the rear side of the inner cavity of the box body (1) are respectively provided with a liquid cooling plate connecting water pipe (13) which is transversely distributed;
each liquid cooling plate is connected with a water pipe (13) and is respectively communicated with a water inlet joint (220) and a water outlet joint of the liquid cooling plate on the adjacent liquid cooling plate (22).
2. The novel battery system according to claim 1, wherein the front and rear sides of the silicone rubber foam ring (241) and the gel block (242) are respectively provided with a plastic sealing film (243);
a double-sided adhesive tape is arranged on the outer side surface of the plastic packaging film (243);
the plastic packaging film (243) is bonded with the adjacent battery cell (21) through a double-sided adhesive tape.
3. The novel battery system according to claim 1, wherein the hollowed-out notch (251) of the anti-adhesive sticker (25) is arranged corresponding to the bottom surface of each battery cell (21) which is not wrapped by the PET insulating film;
the shape and size of the hollow opening (251) of the anti-adhesive sticker (25) are correspondingly matched with the shape and size of the bottom surface of each battery cell (21).
4. A new battery system, as defined in claim 1, characterized in that the bottom plate of the box (1) is provided with a longitudinal elongated, concave groove at a position corresponding to the bottom of each liquid cooling plate (22);
the bottom of the liquid cooling plate (22) is correspondingly embedded into the concave groove.
5. The novel battery system as claimed in claim 1, wherein each of the liquid cooling plate connecting water pipes (13) is provided with a plurality of water receiving ports, and each of the water receiving ports is respectively communicated with a liquid cooling plate water inlet and outlet connector (220) of an adjacent liquid cooling plate (22) through a liquid cooling plate connector.
6. A novel battery system as claimed in claim 1, characterized in that each tank inlet/outlet (11) is connected to the adjacent liquid-cooled plate connecting water pipe (13) by an intermediate connecting pipe (12).
7. The new battery system as claimed in claim 1, wherein the two tank inlet and outlet ports (11) are respectively connected to the outlet port and inlet port of an external cooling pump through hollow connecting pipes, and the liquid cooling plate connecting pipe (13) and the liquid cooling plate are pre-filled with cooling liquid.
8. The novel battery system as claimed in any one of claims 1 to 7, wherein a case upper cover is provided on the top of the case (1);
the upper cover of the box body is provided with a total anode output end and a total cathode output end which are used for connecting external electric equipment;
the positive electrode output ends between any two adjacent battery modules are respectively connected through an inter-module positive electrode bus bar;
the negative electrode output ends between any two adjacent battery modules are respectively connected through an inter-module negative electrode bus bar;
the total positive output end is in conductive connection with the positive bus bar between the modules;
the total negative output is electrically connected to the negative bus between the modules.
CN202221564781.3U 2022-06-22 2022-06-22 Novel battery system Active CN218351537U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221564781.3U CN218351537U (en) 2022-06-22 2022-06-22 Novel battery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221564781.3U CN218351537U (en) 2022-06-22 2022-06-22 Novel battery system

Publications (1)

Publication Number Publication Date
CN218351537U true CN218351537U (en) 2023-01-20

Family

ID=84912923

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221564781.3U Active CN218351537U (en) 2022-06-22 2022-06-22 Novel battery system

Country Status (1)

Country Link
CN (1) CN218351537U (en)

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