CN216597847U - Shell assembly of battery module and battery module with shell assembly - Google Patents

Shell assembly of battery module and battery module with shell assembly Download PDF

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Publication number
CN216597847U
CN216597847U CN202123277965.XU CN202123277965U CN216597847U CN 216597847 U CN216597847 U CN 216597847U CN 202123277965 U CN202123277965 U CN 202123277965U CN 216597847 U CN216597847 U CN 216597847U
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battery module
end plate
splicing
unit
concatenation unit
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CN202123277965.XU
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Chinese (zh)
Inventor
李忠建
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Svolt Energy Technology Co Ltd
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Svolt Energy Technology Co Ltd
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Priority to CN202123277965.XU priority Critical patent/CN216597847U/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 casing assembly of battery module and battery module that has it, the casing assembly of battery module includes a plurality of concatenation units, the concatenation unit is plate body shape, the concatenation unit is equipped with first connecting portion and second connecting portion at width direction's both sides border, the concatenation unit first connecting portion be used for with adjacent the second connecting portion of concatenation unit link to each other, so that a plurality of the concatenation unit is followed the width direction of concatenation unit connects gradually, the concatenation unit is formed with the fixed slot that is used for the cartridge electricity core at one of them side surface of thickness direction. According to the utility model discloses a housing assembly of battery module can increase housing assembly's range of application through the concatenation unit that sets gradually, arranges in a flexible way, can set up the quantity of concatenation unit and arrange to placing the battery module space according to actual conditions, guarantees the utilization ratio in space.

Description

Shell assembly of battery module and battery module with same
Technical Field
The utility model belongs to the technical field of the electric automobile technique and specifically relates to a battery module's casing subassembly and battery module that has it is related to.
Background
Point out among the correlation technique, the casing of battery module is mostly fixed size, and the range of application is single fixed, changes battery module place after the space, the casing subassembly of battery module is along with redesign, the die sinking, improved the cost of improvement intangibly between intangible, the size of the battery module can't be adjusted the casing according to actual conditions is nimble.
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, the utility model provides a housing assembly of battery module, housing assembly can increase housing assembly's range of application, arranges in a flexible way, can set up the quantity of concatenation unit and arrange to the space of placing battery module according to actual conditions, guarantees the utilization ratio in space.
The utility model discloses still provide a battery module who has above-mentioned casing assembly.
According to the utility model discloses the casing subassembly of battery module of first aspect, include: a plurality of concatenation units, the concatenation unit is the plate body shape, the concatenation unit is equipped with first connecting portion and second connecting portion at width direction's both sides border, the concatenation unit first connecting portion be used for with adjacent the second connecting portion of concatenation unit link to each other, so that a plurality of the concatenation unit is followed the width direction of concatenation unit connects gradually, the concatenation unit is formed with the fixed slot that is used for cartridge electricity core at thickness direction's one of them side surface.
According to the utility model discloses a housing assembly of battery module can increase housing assembly's range of application through the concatenation unit that sets gradually, arranges in a flexible way, can set up the quantity of concatenation unit and arrange to the space of placing battery module according to actual conditions, guarantees the utilization ratio in space.
In some embodiments, the first connecting portion is formed as a connecting groove, and the second connecting portion is formed as a connecting projection, which is adapted to the connecting groove and is adapted to be snap-fit.
In some embodiments, the connecting projection has a cross-sectional size that gradually increases in a direction from the fixed end toward the free end of the connecting projection.
In some embodiments, further comprising: first end plate and second end plate, first end plate with second end plate perpendicular to the concatenation unit interval sets up in concatenation unit thickness direction, the one end of first end plate with be connected with between the one end of second end plate and link to each other a plurality ofly in order concatenation unit, the other end of first end plate with be connected with between the other end of second end plate and link to each other a plurality ofly in order concatenation unit in concatenation unit's thickness direction, two of mutual disposition concatenation unit the fixed slot sets up in opposite directions.
In some embodiments, the splicing unit is a plastic part, and/or the first end plate and the second end plate are both plastic parts.
In some embodiments, the splice unit is formed with a groove on the other side surface in the thickness direction, the groove extending in the width direction of the splice unit and penetrating the splice unit, the housing assembly further includes: the bandage, the bandage is followed casing assembly's circumference extends for the annular and locates in the recess.
According to the utility model discloses battery module of second aspect, include according to the utility model discloses the casing subassembly and a plurality of electric core of battery module of first aspect, it is a plurality of electric core is located in the casing subassembly, two of mutual disposition are inserted respectively in the both ends of electric core in the fixed slot of concatenation unit.
According to the utility model discloses a battery module is through the casing subassembly that sets up the battery module of above-mentioned first aspect to battery module's wholeness ability has been improved.
In some embodiments, the battery cell has a terminal, and the battery module further includes: and the bus bar is connected between the pole columns of two adjacent battery cells, and at least part of the bus bar in the current flowing direction is formed into a fusing part suitable for fusing.
In some embodiments, the busbar further includes two connecting pieces connected to two ends of the fusing portion, and the two connecting pieces are connected to the poles of two adjacent battery cells respectively.
In some embodiments, further comprising: and at least one heat insulation piece is arranged between every two adjacent electric cores.
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 accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a battery module according to an embodiment of the present invention;
fig. 2 is an exploded view of the battery module shown in fig. 1;
fig. 3 is a schematic view of a splicing unit in the battery module shown in fig. 1;
FIG. 4 is a left side view of the splice unit shown in FIG. 3;
FIG. 5 is a rear view of the splice unit shown in FIG. 3;
FIG. 6 is a schematic view of the first end plate shown in FIG. 2;
fig. 7 is a schematic view of the bus bar shown in fig. 2.
Reference numerals:
1000. a battery module;
100. a housing assembly;
110. a splicing unit; 111. a first connection portion; 111a, connecting grooves; 112. a second connecting portion; 112a, a connecting projection; 113. fixing grooves; 114. a groove;
120. a first end plate; 121. mounting holes;
130. a second end plate;
140. binding a belt;
200. an electric core;
210. a pole column;
300. a bus bar; 310. a fusing portion; 320. connecting sheets; 321. a threaded hole;
400. a heat shield.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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.
The housing assembly 100 of the battery module 1000 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 2, the housing assembly 100 of the battery module 1000 according to the embodiment of the present invention includes a plurality of splicing units 110.
Specifically, the splicing unit 110 is in a plate shape, the splicing unit 110 is provided with a first connecting portion 111 and a second connecting portion 112 at two side edges in the width direction (for example, the front-back direction shown in fig. 2), the first connecting portion 111 of the splicing unit 110 is used for being connected with the second connecting portion 112 of the adjacent splicing unit 110, so that the splicing units 110 are sequentially connected in the width direction of the splicing unit 110, and a fixing groove 113 for inserting the battery cell 200 is formed on one side surface of the splicing unit 110 in the thickness direction (for example, the left-right direction shown in fig. 2).
For example, as shown in fig. 1, the first connection portion 111 on one side of the splicing unit 110 is connected to the second connection portion 112 of the adjacent splicing unit 110, and the splicing units 110 are connected in sequence, so as to form one side surface of the housing assembly 100 of the battery module 1000, the same number of splicing units 110 are used to form the other side surface of the housing assembly 100 of the battery module 1000, the two side surfaces are arranged oppositely, the fixing slots 113 in the two side surfaces are in one-to-one correspondence, and the two opposite fixing slots 113 are matched with each other for inserting the battery cells 200.
According to the utility model discloses a battery module 1000's casing assembly 100, through the concatenation unit 110 that sets up and to connect gradually, can increase casing assembly 100's range of application, arrange in a flexible way, can arrange to the space of placing battery module 1000 according to actual conditions, the quantity that sets up concatenation unit 110, guarantee the utilization ratio in space.
In an embodiment of the present invention, as shown in fig. 3, the first connecting portion 111 is formed as a connecting groove 111a, the second connecting portion 112 is formed as a connecting protrusion 112a, the connecting protrusion 112a is adapted to the connecting groove 111a in shape and is suitable for being connected to a clamping joint, so that the connecting groove 111a and the connecting protrusion 112a of the splicing unit 110 are sequentially connected to each other, and the multiple splicing units 110 are connected to each other.
For example, as shown in fig. 1 and 2, the splicing unit 110 is formed with a connection groove 111a at one side in the width direction (e.g., the front side of the splicing unit 110 shown in fig. 2), the splicing unit 110 is formed with a connection protrusion 112a at the other side in the width direction (e.g., the rear side of the splicing unit 110 shown in fig. 2), the connection protrusions 112a and the connection grooves 111a are in one-to-one correspondence in the width direction of the splicing unit 110, such that the connection groove 111a of the first splicing unit 110 at the head end (e.g., the front end of the battery module 1000 shown in fig. 1) and the connection protrusion 112a of the second splicing unit 110 adjacent thereto are connected to each other, the connection groove 111a of the second splicing unit 110 and the connection protrusion 112a of the third splicing unit 110 are connected to each other, and so on, the connection groove 111a of the second last splicing unit 110 and the connection protrusion 112a of the splicing unit 110 at the tail end (e.g., the rear end of the battery module 1000 shown in fig. 1) are connected to each other, thereby realizing the connection of a plurality of splicing units 110.
In an embodiment of the present invention, as shown in fig. 3, in a direction from the fixed end of the connecting protrusion 112a toward the free end (for example, in a direction from front to back as shown in fig. 3), the cross-sectional size of the connecting protrusion 112a gradually increases, so that after the connecting grooves 111a of two adjacent splicing units 110 and the connecting protrusion 112a are mutually matched to realize the connection of the two splicing units 110, the stability of the connection of the two splicing units 110 in the width direction of the splicing units 110 can be ensured.
For example, as shown in fig. 2, the connecting protrusion 112a is firstly snapped into the connecting groove 111a in the direction perpendicular to the width direction of the splicing unit 110, when one side surface of two adjacent splicing units 110 (for example, the right side surface of the splicing unit 110 shown in fig. 2) is in the same plane, which means that the connecting groove 111a and the connecting protrusion 112a are completely snapped into each other, since the sectional size of the connecting protrusion 112a is gradually increased in the direction from the fixed end of the connecting protrusion 112a to the free end, which is beneficial to ensure the stability of the connection of two adjacent splicing units 110 in the width direction of the splicing unit 110.
In an embodiment of the present invention, as shown in fig. 1, the housing assembly 100 may further include a first end plate 120 and a second end plate 130, the first end plate 120 and the second end plate 130 are disposed at an interval perpendicular to the splicing units 110, in the thickness direction of the splicing units 110, a plurality of splicing units 110 connected in sequence are connected between one end of the first end plate 120 and one end of the second end plate 130, a plurality of splicing units 110 connected in sequence are connected between the other end of the first end plate 120 and the other end of the second end plate 130, in the thickness direction of the splicing units 110, the fixing slots 113 of two splicing units 110 arranged oppositely are disposed in opposite directions, so that the first end plate 120, the second end plate 130 and the plurality of splicing units 110 are mutually matched to form the housing assembly 100 for placing the electrical core 200.
For example, as shown in fig. 1, the housing assembly 100 may include a first splice group and a second splice group, the first splice group includes a plurality of splice units 110 connected in sequence, the second splice group includes a plurality of splice units 110 connected in sequence, the first splice group and the second splice group are spaced and arranged in parallel in a thickness direction of the splice units 110, the first end plate 120 and the second end plate 130 are spaced and arranged perpendicular to the splice units 110, two ends of the first splice group are respectively connected to one end of the first end plate 120 (e.g., the left end of the first end plate 120 shown in fig. 1) and one end of the second end plate 130 (e.g., the left end of the second end plate 130 shown in fig. 1), two ends of the second splice group are respectively connected to the other end of the first end plate 120 (e.g., the right end of the first end plate 120 shown in fig. 1) and the other end of the second end plate 130 (e.g., the right end of the second end plate 130 shown in fig. 1), wherein, a plurality of fixed slots 113 of first concatenation group and a plurality of fixed slots 113 of second concatenation group one-to-one and set up in opposite directions, like this, mutually support between first end plate 120, second end plate 130 and a plurality of concatenation unit 110, form the casing subassembly 100 of placing electric core 200.
Further, the first end plate 120 and the second end plate 130 are further provided with mounting holes 121, and the battery module 1000 is fixed in the battery box through the mounting holes 121, so that the assembly is simple.
In an embodiment of the present invention, referring to fig. 3, the splicing unit 110 is a plastic part, and/or the first end plate 120 and the second end plate 130 are plastic parts, which is beneficial to reducing the cost, and the plastic parts have less influence on the temperature of the battery cell 200, thereby being beneficial to the uniformity of the temperature of the module.
Wherein, as shown in fig. 3, the structure of the splicing unit 110 is simpler, injection mold can realize the operation of a mould many caves, the molding process of working of plastics and plastic part is all more mature, the shaping is easy, with low costs, can guarantee that every splicing unit 110 is the same, the unity is high, first end plate 120 and second end plate 130 are plastic parts, the coefficient of thermal conductivity of plastic part is low, than aluminium system end plate in the past, it is less to the influence of electric core 200 temperature, be favorable to the temperature homogeneity of module.
In an embodiment of the present invention, as shown in fig. 4 and 5, the groove 114 is formed on the other side surface of the splicing unit 110 in the thickness direction, the groove 114 extends along the width direction of the splicing unit 110 and penetrates through the splicing unit 110, the housing assembly 100 may further include a tie 140, the tie 140 extends along the circumference of the housing assembly 100 to be annular and is disposed in the groove 114, so that the groove 114 is used for placing the tie 140 to tie up the battery module 1000, thereby further improving the stability of the housing assembly 100.
Further, as shown in fig. 2, two grooves 114 are formed on the splicing unit 110 and the first end plate 120 and the second end plate 130 at intervals in the length direction of the splicing unit 110, the splicing unit 110 and the first end plate 120 and the second end plate 130 are matched with each other to form a plurality of annular closed grooves 114, and the grooves 114 are used for placing the tie 140 to tie up the battery module 1000, so that the stability of the housing assembly 100 is further improved.
A battery module 1000 according to an embodiment of a second aspect of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 1, a battery module 1000 according to an embodiment of the present invention includes a housing assembly 100 and a plurality of battery cells 200 of the battery module 1000 according to an embodiment of the first aspect.
Specifically, referring to fig. 2, a plurality of battery cells 200 are disposed in the housing assembly 100, two ends of each battery cell 200 are respectively inserted into the fixing grooves 113 of two oppositely-arranged splicing units 110, so that one battery cell 200 is fixed by the two opposite splicing units 110, and a plurality of adjacent splicing units 110 are sequentially connected in the width direction of the splicing units through the connecting grooves 111a and the connecting protrusions 112a, thereby realizing the stacked arrangement of the plurality of battery cells 200.
According to the utility model discloses battery module 1000 through the casing subassembly 100 that sets up battery module 1000 of the above-mentioned first aspect embodiment to battery module 1000's wholeness ability has been improved.
In an embodiment of the present invention, referring to fig. 2 and fig. 7, the battery cell 200 has the terminal 210, the battery module 1000 further includes the busbar 300, the busbar 300 is connected between the terminal 210 of two adjacent battery cells 200, at least part of the busbar 300 in the current flowing direction is formed into the fusing portion 310 suitable for fusing, thus, when the battery module 1000 is short-circuited, the fusing portion 310 on the busbar 300 can be fused due to the high temperature caused by the short circuit of the battery cell 200, the internal electrical connection of the battery module 1000 is disconnected, thereby avoiding causing a greater loss, and improving the safety performance of the battery module 1000.
It should explain, new energy automobile is more and more popular at present stage, the battery package problem of catching fire frequently takes place, no matter be collision or bubble external reason such as water short circuit, its root cause is that electric core continuously stands the heavy current, then continuously generate heat, until the burning, set up fusing part 310 on converging like this, it is too big when the electric current through fusing part 310, when the heat reaches fusing temperature of fusing part 310, fusing part 310 will break off, and then the inside electric current of disconnection battery module 1000, promote battery module 1000's security performance.
In an embodiment of the present invention, as shown in fig. 7, the bus bar 300 further includes two connecting pieces 320 respectively connected to two ends of the fusing portion 310, the two connecting pieces 320 are respectively connected to the poles 210 of two adjacent battery cells 200, wherein the two connecting pieces 320 are made of aluminum, and the connection between the connecting pieces 320 and the poles 210 of the battery cells 200 is realized by laser welding, so as to ensure the stability of the electrical connection between the poles 210 and the connecting pieces 320.
Further, a threaded hole 321 may be formed in the connecting plate 320, and the connecting plate 320 is connected to the terminal 210 through a bolt matched with the threaded hole 321 and the threaded hole 321, so as to ensure the stability of the electrical connection between the terminal 210 and the connecting plate 320.
In an embodiment of the present invention, as shown in fig. 2, the battery module 1000 may further include a plurality of heat insulation members 400, and at least one heat insulation member 400 is disposed between every two adjacent battery cells 200, so that when a thermal runaway occurs in a certain battery cell 200, the influence on the adjacent battery cell 200 can be separated, and the safety performance of the battery module 1000 is further improved.
A battery module 1000 according to an embodiment of the present invention will be described with reference to fig. 1 to 7.
Referring to fig. 2, a battery module 1000 according to an embodiment of the present invention may include: the battery pack comprises a housing assembly 100, a plurality of battery cells 200, a bus bar 300 and a plurality of heat insulation pieces 400, wherein the plurality of battery cells 200 are arranged in the housing assembly 100, and two ends of each battery cell 200 are respectively inserted into fixing grooves 113 of two oppositely-arranged splicing units 110.
The housing assembly 100 includes a plurality of splice units 110, a first end plate 120, a second end plate 130, and a twist tie 140.
The splicing unit 110 is in a plate shape, the splicing unit 110 is a plastic piece, a first connecting portion 111 and a second connecting portion 112 are arranged on two side edges of the unit in the width direction, the first connecting portion 111 is formed into a connecting groove 111a, the second connecting portion 112 is formed into a connecting protrusion 112a, the connecting protrusion 112a is matched with the connecting groove 111a in shape and is suitable for clamping connection, and the cross section size of the connecting protrusion 112a is gradually increased in the direction from the fixed end of the connecting protrusion 112a to the free end.
First end plate 120 and second end plate 130 are the plastic part, and first end plate 120 and second end plate 130 perpendicular to concatenation unit 110 interval sets up, sets up respectively at the both ends of the width direction battery module 1000 of concatenation unit 110, forms casing assembly 100 with the cooperation of a plurality of concatenation units 110.
The groove 114 is formed on the other side surface of the splicing unit 110 in the thickness direction, the groove 114 extends in the thickness direction of the splicing unit 110 and penetrates through the splicing unit 110, and the tie 140 extends in a ring shape in the circumferential direction of the housing assembly 100 and is disposed in the groove 114.
The battery cell 200 has a pole 210.
The bus bar 300 is connected between the poles 210 of two adjacent battery cells 200, at least a part of the bus bar 300 in the current flowing direction is formed into a fusing part 310 suitable for fusing, the bus bar 300 may further include two connecting pieces 320 respectively connected to two ends of the fusing part 310, and the two connecting pieces 320 are respectively welded to the poles 210 of the two battery cells 200
A heat insulation member 400 is arranged between every two adjacent battery cells 200.
Specifically, as shown in fig. 1, in the assembly process of the battery module 1000, the plurality of splicing units 110 are connected together to form two opposite sides of the housing assembly 100, then the plurality of battery cells 200 are respectively placed in the fixing grooves 113 of the two opposite splicing units 110, the primary fixing of the battery cells 200 is realized, then the first end plate 120 and the second end plate 130 are respectively connected to two ends of the battery module 1000 in the width direction of the splicing units 110, the further fixing of the battery cells 200 is realized, finally, the housing assembly 100 is further fixed by the tie 140, the assembly of the battery module 1000 is completed, when the battery module 1000 is out of control due to heat, the fusing part 310 is disconnected due to over-high temperature, the current inside the battery module 1000 is cut off, and further the safety performance of the battery module 1000 is improved.
According to the utility model discloses a battery module 1000's casing assembly 100, the concatenation unit 110 that can connect gradually through the setting can increase casing assembly 100's range of application, arranges in a flexible way, can arrange to the space of placing battery module 1000 according to actual conditions, and the quantity that sets up concatenation unit 110 guarantees the utilization ratio in space.
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.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A housing assembly for a battery module, comprising:
a plurality of concatenation units, the concatenation unit is the plate body shape, the concatenation unit is equipped with first connecting portion and second connecting portion at width direction's both sides border, the concatenation unit first connecting portion be used for with adjacent the second connecting portion of concatenation unit link to each other, so that a plurality of the concatenation unit is followed the width direction of concatenation unit connects gradually, the concatenation unit is formed with the fixed slot that is used for cartridge electricity core at thickness direction's one of them side surface.
2. The housing assembly of a battery module according to claim 1, wherein the first coupling part is formed as a coupling groove, and the second coupling part is formed as a coupling protrusion adapted to the coupling groove in shape and adapted to be snap-coupled.
3. The housing assembly of battery modules as set forth in claim 2, wherein the coupling protrusions have a sectional size gradually increasing in a direction from the fixed ends toward the free ends of the coupling protrusions.
4. The housing assembly of a battery module according to claim 1, further comprising: the first end plate and the second end plate are arranged at intervals and perpendicular to the splicing unit,
in the thickness direction of the splicing units, a plurality of splicing units which are sequentially connected are connected between one end of the first end plate and one end of the second end plate, a plurality of splicing units which are sequentially connected are connected between the other end of the first end plate and the other end of the second end plate,
in the thickness direction of the splicing units, the fixing grooves of the two splicing units which are oppositely arranged.
5. The housing assembly of the battery module according to claim 4, wherein the splicing unit is a plastic member, and/or the first end plate and the second end plate are both plastic members.
6. The housing assembly of a battery module according to claim 4, wherein the splicing unit has a groove formed on the other side surface in the thickness direction, the groove extending in the width direction of the splicing unit and penetrating through the splicing unit, the housing assembly further comprising: the bandage, the bandage is followed casing assembly's circumference extends for the annular and locates in the recess.
7. A battery module, comprising:
a housing assembly of the battery module according to any one of claims 1 to 6;
the battery cell is arranged in the shell assembly, and two ends of the battery cell are respectively inserted into two fixing grooves of the splicing units which are oppositely arranged.
8. The battery module of claim 7, wherein the cell has a post, the battery module further comprising: and the bus bar is connected between the pole columns of two adjacent battery cells, and at least part of the bus bar in the current flowing direction is formed into a fusing part suitable for fusing.
9. The battery module according to claim 8, wherein the busbar further comprises two connecting pieces connected to two ends of the fusing part, and the two connecting pieces are connected to the poles of two adjacent battery cells respectively.
10. The battery module according to claim 8, further comprising: and at least one heat insulation piece is arranged between every two adjacent electric cores.
CN202123277965.XU 2021-12-23 2021-12-23 Shell assembly of battery module and battery module with shell assembly Active CN216597847U (en)

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Application Number Priority Date Filing Date Title
CN202123277965.XU CN216597847U (en) 2021-12-23 2021-12-23 Shell assembly of battery module and battery module with shell assembly

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CN216597847U true CN216597847U (en) 2022-05-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115084770A (en) * 2022-07-20 2022-09-20 天津市捷威动力工业有限公司 Combined battery module middle fixing device and battery module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115084770A (en) * 2022-07-20 2022-09-20 天津市捷威动力工业有限公司 Combined battery module middle fixing device and battery module
CN115084770B (en) * 2022-07-20 2023-07-07 天津市捷威动力工业有限公司 Combined type battery module middle fixing device and battery module

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