CN209963098U - Battery module, power battery and vehicle - Google Patents

Battery module, power battery and vehicle Download PDF

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Publication number
CN209963098U
CN209963098U CN201920475924.5U CN201920475924U CN209963098U CN 209963098 U CN209963098 U CN 209963098U CN 201920475924 U CN201920475924 U CN 201920475924U CN 209963098 U CN209963098 U CN 209963098U
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China
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battery
battery module
end plate
reinforcing beam
power
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CN201920475924.5U
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Chinese (zh)
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黄云龙
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Beijing Electric Vehicle Co Ltd
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Beijing Electric Vehicle Co Ltd
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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 battery module, power battery and vehicle, the battery module includes the end plate to and set up the electric core between the end plate, the end plate orientation the area of electric core one side is less than the electric core orientation the area of end plate one side to the terminal surface at the battery module forms the breach. According to the utility model discloses battery module, battery module's terminal surface forms the breach that is used for installing the stiffening beam, the stiffening beam of being convenient for installation to improve power battery's stability effectively.

Description

Battery module, power battery and vehicle
Technical Field
The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a battery module, have the power battery of this battery module and have the vehicle of this power battery.
Background
As an important development direction of future green energy, lithium ion batteries have the advantages of higher energy density, small self-discharge, long cycle life and the like compared with lead-acid batteries, nickel-metal hydride batteries and nickel-cadmium batteries, and are currently widely used in the fields of consumer electronics and power energy storage. In the design process of the power battery, in order to ensure the rigidity and the strength of the lower shell, a cross beam/a reinforcing beam needs to be arranged at a proper position on the lower shell, and the cross section size of the beam is optimized according to CAE simulation results and test results. In the related art, the installation of the cross beam/the reinforcing beam enables the bottom height of the lower shell to be lower and the rigidity performance to be not improved, so that the passing performance and the safety of the whole vehicle are greatly reduced, and the improvement space exists.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a battery module, which is convenient for installing a reinforcing beam, so as to effectively improve the stability of a power battery.
According to the utility model discloses battery module, battery module includes the end plate to and set up the electric core between the end plate, the end plate orientation the area of electric core one side is less than the electric core orientation the area of end plate one side to the terminal surface at battery module forms the breach.
According to the utility model discloses battery module, battery module's terminal surface forms the breach that is used for installing the stiffening beam, the stiffening beam of being convenient for installation to improve power battery's stability effectively.
According to the utility model discloses a battery module, the lower surface of end plate is higher than the lower surface of electricity core to form the breach in the lower part of the terminal surface of battery module.
According to the battery module provided by the utility model, the ratio of the height of the end plate to the height of the battery cell is i, which satisfies the requirement; i is not less than 0.4 and not more than 0.9, and the upper surface of the end plate is flush with the upper surface of the battery cell.
According to the utility model discloses a battery module, battery module still includes the curb plate with the adjacent setting of end plate, the curb plate is buckled in order to cover to battery module's terminal surface after length direction extends the breach.
The utility model also provides a power battery.
According to the power battery provided by the embodiment of the utility model, the battery module provided by any one of the above embodiments; and the reinforcing beam is arranged at the notch of the end face of the battery module and matched with the end plate of the battery module to cover the end face of the battery module.
According to the power battery provided by the utility model, the lower surface of the end plate is higher than the lower surface of the battery cell so as to form a notch at the lower part of the end surface of the battery module; one end of the reinforcing beam is connected with the lower shell of the power battery, and the other end of the reinforcing beam is connected with the bottom of the end plate so as to seal the notch.
According to the utility model discloses a power battery, the lower surface of end plate with the upper surface of stiffening beam passes through the connecting piece and connects.
According to the utility model discloses a power battery, the one end of stiffening beam with power battery's lower casing links to each other, the other end of stiffening beam is simultaneously with adjacent two the end plate bottom of battery module links to each other to seal two simultaneously the terminal surface breach of battery module.
According to the utility model discloses a power battery, the both sides face of stiffening beam is equipped with the hole of dodging that runs through self, it is used for to dodge the hole the battery module is walked the line and is dodged power battery's cooling system.
According to the utility model discloses a power battery, the stiffening beam is the hollow beam structure, and has the hollow chamber of the first layer, the hollow chamber of second floor, the hollow chamber of third layer that from the top down distributes, the roof in the hollow chamber of first layer with the end plate links to each other, it is in to dodge the hole setting the relative both sides wall in the hollow chamber of second floor, just it runs through to dodge the hole the hollow chamber of second floor, the hollow chamber of third layer with the casing links to each other down.
According to the utility model discloses a power battery, the bottom of battery module is equipped with cooling system, cooling system is located module electricity core with between the casing down.
The utility model also provides a vehicle.
According to the utility model discloses the vehicle is provided with any kind of above-mentioned embodiment power battery.
The vehicle and the power battery have the same advantages compared with the prior art, and the detailed description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a power battery according to an embodiment of the present invention;
fig. 2 is a front view of a power battery according to an embodiment of the present invention;
fig. 3 is a partial enlarged view of a front view of a power cell according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a reinforcing beam of a power battery according to an embodiment of the present invention;
fig. 5 is an assembly view of a cell, end plate and side plate of a power battery according to an embodiment of the present invention;
fig. 6 is an assembly view of the battery cell and the side plate of the power battery according to the embodiment of the present invention.
Reference numerals:
the power battery 100 is provided with a power battery,
the end plate 11, the cell 12, the side plate 13,
a reinforcing beam 2, a first layer hollow cavity 21, a second layer hollow cavity 22, a third layer hollow cavity 23, a avoiding hole 24, a mounting hole 25,
a cooling system 3 and a lower shell 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The power battery 100 according to the embodiment of the present invention is described below with reference to fig. 1 to 6, the stiffening beam 2 is connected to the lower end of the end plate 11, and the upper surface of the stiffening beam 2 is higher than the lower surface of the battery core 12, that is, the connection position between the upper surface of the stiffening beam 2 and the end plate 11 is increased, so that the overall size of the stiffening beam 2 in the vertical direction is increased, the strength and rigidity of the stiffening beam 2 are enhanced, and the safety performance of the battery module is improved.
As shown in fig. 1-6, a power battery 100 according to an embodiment of the present invention includes: battery module and stiffening beam 2.
As shown in fig. 1, fig. 2 and fig. 3, the battery module includes end plates 11 and electric core 12 at both ends, and electric core 12 is disposed between two end plates 11, if electric core 12 is clamped between two end plates 11, that is, both ends of electric core 12 are both provided with end plates 11, and end plates 11 are used for shielding the end of electric core 12, so as to avoid the end of electric core 12 to expose, and improve the safety of electric core 12.
Wherein, as shown in fig. 5, the area of end plate 11 towards electric core 12 one side is less than the area of electric core 12 towards end plate 11 one side to form the breach at the terminal surface of battery module, stiffening beam 2 sets up in the breach department of battery module terminal surface, in order to cooperate with the end plate 11 of battery module, covers the terminal surface of battery module.
As shown in fig. 5, the width of the end plate 11 is the same as the width of the cell 12, and the height of the end plate 11 is smaller than the height of the cell 12. Thus, after the end plate 11 and the battery cell 12 are mounted and fixed, a gap can be formed above or below the end surface of the battery module and the end plate 11, and the gap can be used for mounting the reinforcing beam 2.
As shown in fig. 5, the lower surface of the end plate 11 is higher than the lower surface of the battery cell 12 to form a notch at the lower portion of the end surface of the battery module, so that the reinforcing beam 2 can be mounted at the notch, and the reinforcing beam 2 is located below the end plate 11, thereby greatly improving the mounting strength of the battery module after the battery module and the reinforcing beam 2 are stably mounted.
Or, the end plate 11 may be installed at the lower portion of the end surface of the electric core 12 to form a notch at the upper portion of the end surface of the battery module, so that the reinforcing beam 2 is installed at the notch and located above the end plate 11, the installation strength of the battery module can be improved, the stability of the power battery is improved, and the battery module can be hung on the bottom of the vehicle through the reinforcing beam 2.
Or, install end plate 11 in the middle part of the terminal surface of electric core to all form the breach in the upper portion and the lower part of the terminal surface of battery module, like this, reinforcing beam 2 all can be installed on the upper portion of the terminal surface of battery module, and from this, reinforcing beam 2 is all installed to the top and the below of end plate 11, has greatly improved the installation intensity of both sides about the battery module, promotes power battery 100's stability, is convenient for use for a long time.
In the present application, the case where the notch is formed in the lower portion of the end surface of the battery module and the reinforcing beam 2 is mounted below the end plate 11 is described as an example, but it is needless to say that the various mounting positions and mounting manners of the reinforcing beam 2 have the same structural performance, and in the specific mounting of the power battery 100, an appropriate mounting manner can be selected according to actual needs. From this, end plate 11 links to each other and integrates with stiffening beam 2, and end plate 11's high reduction, stiffening beam 2's high increase, and stiffening beam 2 has the module installation concurrently and increases the effect of intensity, can obviously promote stiffening beam 2 and the rigidity and the intensity of whole package, is favorable to the lightweight of whole package simultaneously.
As shown in fig. 1, fig. 5 and fig. 6, the battery module further includes a side plate 13, the side plate 13 is adjacent to the end plate 11, the side plate 13 is installed on the side portion of the battery cell 12, so as to shield the side portion of the battery cell 12, therefore, the end portion and the side portion of the battery cell 12 are respectively shielded and protected by the end plate 11 and the side plate 13, and as shown in fig. 6, the side plate 13 is bent to cover the notch toward the end surface of the battery module after extending in the length direction, so that the side plate 13 can shield the portion of the battery cell 12 at the lower part of the end plate 11, and the lower shell 4. In this way, the whole battery cell 12 is in a safe environment, so that the battery cell 12 can be ensured to be charged and discharged safely and stably.
The lower surface of the end plate 11 is higher than the lower surface of the battery cell 12, one end of the reinforcing beam 2 is connected with the lower casing 4 of the power battery 100, and the other end of the reinforcing beam 2 is connected with the end plate 11 to close the gap. The stiffening beam 2 is connected with the lower shell 4 of the power battery 100, the lower surface of the end plate 11 is supported on the upper surface of the stiffening beam 2, the stiffening beam 2 is connected with the end plate 11, namely, the lower surface of the end plate 11 and the lower surface of the battery cell 12 form a gap, and at least part of the stiffening beam 2 is located in the gap, so that the overall vertical height of the power battery 100 is reduced. As shown in fig. 3, the reinforcing beam 2 is connected to the end plate 11 by a screw fastener, the end plate 11 has a screw hole penetrating in the vertical direction, the upper surface of the reinforcing beam 2 has a mounting hole 25, and the screw fastener penetrates the screw hole of the end plate 11 and extends into the upper surface of the reinforcing beam 2 to connect and fix the end plate 11 and the reinforcing beam 2. Easy dismounting does benefit to later stage maintenance or change, and can avoid stiffening beam 2 to take the condition of disconnect-type design, and whole package arranges compacter.
As shown in fig. 3, the lower surface of the end plate 11 is attached to the upper surface of the reinforcing beam 2, the upper surface of the reinforcing beam 2 is higher than the lower surface of the battery cell 12, and the overall height of the reinforcing beam 2 is greater than the distance from the lower surface of the reinforcing beam 2 to the lower surface of the battery cell 12, so that the structural strength and rigidity of the reinforcing beam 2 are increased, the stability of the overall structure of the power battery 100 is improved, the mounting structure of the battery is prevented from being damaged when the vehicle gets over obstacles, and the safety of the battery is enhanced.
Wherein, the lower surface of end plate 11 passes through the connecting piece with the upper surface of stiffening beam 2 and links to each other, and the connecting piece can be threaded fastener, simple structure, simple to operate, and the later stage maintenance or the change of being convenient for. Therefore, the end plate 11 and the reinforcing beam 2 are connected into a whole, more mechanical strength is provided for fixing the battery cell 12, the power battery 100 is more stably installed, and meanwhile, the whole package is light in weight.
As shown in fig. 1 to fig. 3, the end plate 11 between two adjacent battery cells 12 corresponds to the reinforcing beam 2, at least part of the reinforcing beam 2 is opposite to the battery cells 12, that is, two battery cells 12 are respectively located at two sides of the reinforcing beam 2, as shown in fig. 3, one end of the reinforcing beam 2 is connected to the lower housing 4 of the power battery 100, and the other end of the reinforcing beam is connected to the bottom of the end plate of two adjacent battery modules, so as to simultaneously close the end gap of the two battery modules. Like this, at the in-process that power battery 100 carried out charge-discharge, the module bulging force that two electric cores 12 of same root stiffening beam 2 front and back installation produced offsets each other, and stiffening beam 2's stability is better, and stiffening beam 2 can better resist electric core 12 bulging force and fore-and-aft direction's impact load, and from this, stiffening beam 2 compromises the effect of installation and reinforcement.
According to the utility model discloses power battery 100, the upper surface of stiffening beam 2 and end plate 11's the high increase of being connected, the whole size of stiffening beam 2 increases, has improved the structural strength, the rigidity of stiffening beam 2 effectively, and the bulging force that two electric cores 12 of 2 both sides installations of stiffening beam produced can offset each other to the effect of roof beam, and the stability ability of stiffening beam 2 is better.
In some embodiments, the stiffening beam 2 is provided with an avoidance hole 24 penetrating through itself, the avoidance hole 24 is open towards the battery module, and the avoidance hole 24 is used for routing the battery module and also for avoiding the cooling system 3 of the power battery 100. As shown in fig. 4, the reinforcing beam 2 is a cube, the avoidance holes 24 are formed in the side wall of the reinforcing beam 2 facing the battery cell 12, as shown in fig. 3, cooling systems 3 for cooling the power battery 100 are disposed on two sides of the reinforcing beam 2, and the battery cell 12 is disposed on two sides of the reinforcing beam 2.
Wherein, the bottom of electric core 12 is equipped with cooling system 3, and cooling system 3 is located between module electricity core 12 and lower casing 4. In this way, the wiring harness connected between the two battery cells 12 can be routed through the avoiding holes 24, and the water pipes of the cooling systems 3 on the two sides of the stiffening beam 2 can also be arranged through the avoiding holes 24, so that the arrangement pipelines of the wiring harness and the water pipes are reduced, and the installation cost of the power battery 100 is reduced. Meanwhile, the arrangement of the avoiding holes 24 can reduce the materials required for producing the stiffening beam 2, reduce the overall quality of the stiffening beam 2, ensure that the stiffening beam 2 is more portable to mount, and ensure that the arrangement space of the power battery 100 is sufficient.
As shown in fig. 4, the avoiding hole 24 is a rectangular hole, the avoiding hole 24 is arranged along the extending direction of the reinforcing beam 2, and the avoiding hole 24 is arranged in the middle of the side wall of the reinforcing beam 2, so that the structural strength of each region of the reinforcing beam 2 is more balanced, the local strength of the reinforcing beam 2 is prevented from being too low, the structural design is reasonable, and the stability of the reinforcing beam 2 is higher.
In some embodiments, the reinforcing beam 2 is a hollow beam structure, as shown in fig. 3, the reinforcing beam 2 has a hollow hole penetrating along the extending direction, which greatly reduces the mass of the reinforcing beam 2 and the production cost required by the reinforcing beam 2.
As shown in fig. 3, the reinforcing beam 2 has a first layer hollow cavity 21, a second layer hollow cavity 22 and a third layer hollow cavity 23, wherein the first layer hollow cavity 21, the second layer hollow cavity 22 and the third layer hollow cavity 23 are distributed from top to bottom, that is, the first layer hollow cavity 21 is located above the second layer hollow cavity 22, and the third layer hollow cavity 23 is located below the second layer hollow cavity 22.
As shown in fig. 3, transverse reinforcing plates are arranged between the first layer hollow cavity 21 and the second layer hollow cavity 22, and between the second layer hollow cavity 22 and the third layer hollow cavity 23, and can enhance the structural strength of the reinforcing beam 2, and improve the transverse bearing capacity of the power battery 100. And as shown in fig. 3, the first layer hollow cavity 21, the second layer hollow cavity 22 and the third layer hollow cavity 23 each include two sub-cavities, the two sub-cavities are separated by a vertical reinforcing plate extending vertically, the vertical reinforcing plate can enhance the structural strength of the reinforcing beam 2, and the vertical bearing capacity of the power battery 100 is improved. Therefore, under the condition that the overall structural rigidity of the reinforcing beam 2 is ensured, the mass of the reinforcing beam 2 is reduced, the safety performance of the power battery 100 is improved, and the long-term use is facilitated.
As shown in fig. 3, the top wall of the first layer of hollow cavities 21 is connected to the end plate 11, and the top wall of the first layer of hollow cavities 21 can be fixedly connected to the end plate 11 by threaded fasteners penetrating the end plate 11, so that the end plate 11 is effectively supported.
Dodge the hole 24 and set up in the relative both sides wall in the hollow chamber 21 in second layer, and dodge the hole 24 and run through the hollow chamber 22 in second layer, as shown in fig. 3, two relative lateral walls in the hollow chamber 22 in second layer all are equipped with dodge the hole 24, and two dodge the hole 24 just right along the direction of arranging of electric core 12, and cooling system 3's connection water pipe runs through dodge the hole 24.
The hollow chamber 23 of third layer just sets up with lower casing 4, and the lateral wall in the hollow chamber 23 of third layer can link to each other through threaded fastener with lower casing 4 to make stiffening beam 2 and casing 4 connection as an organic whole down, and then be convenient for install the battery module.
In some embodiments, as shown in fig. 4, the upper surface of the reinforcing beam 2 is provided with a mounting location for connecting with the end plate 11, the mounting location is provided on the top wall of the first hollow cavity 21, and the end plate 11 can be connected with the mounting location by a threaded fastener.
As shown in fig. 3, the reinforcing beam 2 located between two adjacent battery modules has two sets of mounting locations spaced apart in the arrangement direction of the two battery modules, the two sets of mounting locations are respectively connected to the two end plates 11 of the two battery modules facing each other, that is, one of the two sets of mounting positions is connected to the end plate 11 corresponding to the battery module located on one side of the reinforcing beam 2, and the other of the two sets of mounting positions is connected to the end plate 11 corresponding to the battery module located on the other side of the reinforcing beam 2, so that the reinforcing beam 2 is fixedly connected to the two battery modules, therefore, when the power battery 100 is charged and discharged, the collision forces generated by the two adjacent battery cells 12 can be mutually offset by the reinforcing beam 2, when the power battery 100 is subjected to a lateral impact, the impact force can be transmitted and eliminated through the reinforcing beam 2, and the safety of the power battery 100 is further improved.
As shown in fig. 4, each set of mounting locations includes a plurality of mounting holes 25, the mounting holes 25 are spaced apart along the extending direction of the reinforcing beam 2, the end plate 11 has a plurality of through screw holes, and the mounting holes 25 correspond to the screw holes one-to-one, so that the end plate 11 and the reinforcing beam 2 can be connected by connecting a plurality of bolts passing through the screw holes to the mounting holes 25, and thus the end plate 11 and the reinforcing beam 2 are connected by threaded fasteners at a plurality of positions, which greatly improves the connection strength between the end plate 11 and the reinforcing beam 2 and enhances the overall stability of the power battery 100.
In some embodiments, the ratio of the height of the end plate 11 to the height of the cell 12 is i, which is satisfied; 0.4 is less than or equal to i and is less than or equal to 0.9, if i is 0.65, or i is 0.7, or i is 0.75 again, and the upper surface of end plate 11 is level with the upper surface of electric core 12, therefore, with the height of end plate 11, the height setting of electric core 12 is in reasonable within range, can make suitable installation space in advance between the lower surface of end plate 11 and electric core 12, with the installation that is used for stiffening beam 2, and then guarantee that the whole height and the mounting height of stiffening beam 2 can both satisfy the user demand, with the stability that improves stiffening beam 2, and make power battery 100's upper surface keep level and smooth, be convenient for install in the bottom of vehicle.
The utility model also provides a vehicle.
According to the utility model discloses the vehicle is provided with the power battery 100 of any kind of above-mentioned embodiment, and this power battery 100's stiffening beam 2 has better structural strength, rigidity, and is favorable to improving power battery 100's safety in utilization.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A battery module comprises end plates and a battery core arranged between the end plates, and is characterized in that,
the area of the end plate facing one side of the battery core is smaller than the area of the battery core facing one side of the end plate so as to form a notch on the end face of the battery module.
2. The battery module according to claim 1, wherein the lower surface of the end plate is higher than the lower surface of the cell to form a notch at a lower portion of an end surface of the battery module.
3. The battery module according to claim 2, wherein the ratio of the height of the end plate to the height of the cell is i, and satisfies; i is not less than 0.4 and not more than 0.9, and the upper surface of the end plate is flush with the upper surface of the battery cell.
4. The battery module according to claim 2, further comprising side plates disposed adjacent to the end plates, the side plates being bent toward the end surfaces of the battery module after extending in the length direction to cover the notches.
5. A power cell, characterized in that the power cell comprises:
the battery module according to any one of claims 1 to 4; and
the reinforcing beam is arranged at the notch of the end face of the battery module and matched with the end plate of the battery module to cover the end face of the battery module.
6. The power cell of claim 5,
the lower surface of the end plate is higher than the lower surface of the battery core so as to form a notch at the lower part of the end surface of the battery module;
one end of the reinforcing beam is connected with the lower shell of the power battery, and the other end of the reinforcing beam is connected with the bottom of the end plate so as to seal the notch.
7. The power cell of claim 6, wherein a lower surface of the end plate is connected to an upper surface of the reinforcement beam by a connector.
8. The power battery according to claim 6, wherein one end of the reinforcing beam is connected with the lower shell of the power battery, and the other end of the reinforcing beam is simultaneously connected with the bottoms of the end plates of two adjacent battery modules so as to simultaneously close the end surface notches of the two battery modules.
9. The power battery according to claim 6, wherein two side faces of the reinforcing beam are provided with avoidance holes penetrating through the reinforcing beam, and the avoidance holes are used for routing the battery module and avoiding a cooling system of the power battery.
10. The power battery according to claim 9, wherein the reinforcing beam is of a hollow beam structure and has a first layer of hollow cavity, a second layer of hollow cavity and a third layer of hollow cavity distributed from top to bottom, the top wall of the first layer of hollow cavity is connected with the end plate, the avoiding holes are formed in two opposite side walls of the second layer of hollow cavity, the avoiding holes penetrate through the second layer of hollow cavity, and the third layer of hollow cavity is connected with the lower shell.
11. The power battery of any one of claims 6-10, wherein a cooling system is disposed at the bottom of the battery module, and the cooling system is located between the battery cell and the lower casing.
12. A vehicle characterized by being provided with the power battery according to any one of claims 5 to 10.
CN201920475924.5U 2019-04-09 2019-04-09 Battery module, power battery and vehicle Active CN209963098U (en)

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Application Number Priority Date Filing Date Title
CN201920475924.5U CN209963098U (en) 2019-04-09 2019-04-09 Battery module, power battery and vehicle

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Application Number Priority Date Filing Date Title
CN201920475924.5U CN209963098U (en) 2019-04-09 2019-04-09 Battery module, power battery and vehicle

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Publication Number Publication Date
CN209963098U true CN209963098U (en) 2020-01-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109962195A (en) * 2019-04-09 2019-07-02 北京新能源汽车股份有限公司 Battery modules, power battery and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109962195A (en) * 2019-04-09 2019-07-02 北京新能源汽车股份有限公司 Battery modules, power battery and vehicle

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