CN115621651A - Power battery module and power battery pack - Google Patents
Power battery module and power battery pack Download PDFInfo
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- CN115621651A CN115621651A CN202211553094.6A CN202211553094A CN115621651A CN 115621651 A CN115621651 A CN 115621651A CN 202211553094 A CN202211553094 A CN 202211553094A CN 115621651 A CN115621651 A CN 115621651A
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- tray
- power battery
- support
- cell
- battery module
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- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 238000010586 diagram Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a power battery module and a power battery pack, and belongs to the technical field of power batteries. A tray accommodating cavity is formed in the tray, and a tray flanging is arranged on the side surface of the tray; a support accommodating cavity is formed in the support, support flanges are arranged on the side faces of the support, and the support flanges are connected with the tray flanges in a one-to-one correspondence manner, so that the tray accommodating cavity and the support accommodating cavity are closed to form a cell clamping and fixing cavity; the bracket flanging and the tray flanging which are correspondingly connected are connected through the connecting piece. The invention improves the assembly efficiency of the power battery module and reduces the assembly cost.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a power battery module and a power battery pack.
Background
The battery core is used as an electric energy storage unit and is the minimum unit of the power battery.
When a plurality of electric cores are packaged together by the same shell frame and are communicated with the outside through a unified boundary, the power battery module is formed. When the plurality of power battery modules are controlled or managed together by the BMS and the thermal management system, the unified whole is the power battery.
Among the prior art, the power battery module includes the bottom tray, sets up in the inside electric core of bottom tray and sets up the CCS subassembly at the electric core top. In order to ensure the structural strength of the power battery module, an adhesive layer is adhered between the bottom tray and the battery cell, so that the structural strength between the battery cell and the bottom tray is ensured; an adhesive layer is also adhered between the support of the CCS assembly and the top of the battery core, so that the support of the CCS assembly is stably connected with the battery core.
The adhesive layers are formed by gluing. However, the efficiency of the current glue application process is low, and the time required for glue curing is longer, which results in low assembly efficiency of the power battery module.
Disclosure of Invention
The invention aims to provide a power battery module and a power battery pack, and aims to solve the technical problem that the assembly efficiency of the power battery module is low due to the fact that glue is required to be applied when the power battery module is assembled in the prior art.
As the conception, the technical scheme adopted by the invention is as follows:
power battery module includes:
the tray is internally provided with a tray accommodating cavity, and the side surface of the tray is provided with a tray flanging;
the battery cell clamping device comprises a bracket, wherein a bracket accommodating cavity is formed in the bracket, bracket flanges are arranged on the side surfaces of the bracket and are connected with the tray flanges in a one-to-one correspondence manner, so that the tray accommodating cavity and the bracket accommodating cavity are closed to form a battery cell clamping fixing cavity;
and the bracket flanging which is correspondingly connected with the tray flanging is connected with the tray flanging through the connecting piece.
Optionally, one of the tray flange and the bracket flange is provided with a mounting positioning element, and the other is provided with a mounting positioning hole matched with the mounting positioning element.
Optionally, the connecting piece includes the plug connector, the plug connector include spacing cap and with the grafting axle that spacing cap is connected, the grafting axle can pass in proper order the support turn-ups with the tray turn-ups, spacing cap can with support turn-ups butt.
Optionally, the connecting piece further includes a nut, an external thread is provided on the plug shaft, and the nut can be locked on the plug shaft.
Optionally, the tray is provided with a cell pressure relief hole communicated with the tray accommodating cavity, and the cell pressure relief hole is in one-to-one correspondence with the cell.
Optionally, tray holding intracavity follows the circumference in electric core pressure release hole is provided with tray electric core location guide structure.
Optionally, the support is provided with a support battery cell positioning structure in the support accommodating cavity, and the support battery cell positioning structure corresponds to the tray battery cell positioning guide structure one to one so as to position the same battery cell.
Optionally, the tray cell positioning and guiding structure includes a plurality of tray cell positioning and guiding blocks distributed along the circumferential direction of the cell pressure relief hole at intervals.
Optionally, the support is provided with a cell positive mounting hole corresponding to the cells one to one, and the support cell positioning structure includes a plurality of support cell positioning blocks arranged at intervals in the circumferential direction of the cell positive mounting hole.
Optionally, the projection of the support electric core positioning block of the support electric core positioning structure is located between two adjacent tray electric core positioning guide blocks of the tray electric core positioning guide structure corresponding to the support electric core positioning structure.
Optionally, a tray reinforcing and supporting structure is arranged on the surface of the tray, which deviates from the tray accommodating cavity, along the circumferential direction of the cell pressure relief hole.
Optionally, the tray reinforcing and supporting structure comprises a tray reinforcing and supporting block protruding from the surface of the tray, which deviates from the tray accommodating cavity, and reinforcing ribs are arranged on the circumference of the tray reinforcing and supporting block.
Optionally, the power battery module further includes a CCS assembly, and the CCS assembly includes:
a bus bar integrated to the bracket;
the collection wire harness is connected with the bus bar and integrated on the support, and the collection wire harness is electrically connected with the bus bar.
Optionally, the power battery module further comprises an electric core assembly, the electric core assembly comprises a plurality of electric cores, and each negative electrode of the electric core is clamped and installed in the electric core clamping and fixing cavity.
The power battery pack comprises a box body and the power battery module, and the power battery module is arranged in the box body.
Optionally, the box body comprises a side beam, and the side beam, the support flange and the tray flange are fixedly connected through the connecting piece.
The invention has the beneficial effects that:
when the power battery module is assembled, the tray is placed at an assembling station, the tray accommodating cavity is arranged upwards, the lower end of the battery cell of the power battery module is placed in the tray accommodating cavity, then the support accommodating cavity is arranged downwards, the tray accommodating cavity and the support accommodating cavity are combined to form a battery cell clamping and fixing cavity, the battery cell clamping and fixing cavity clamps the battery cell in the battery cell clamping and fixing cavity, and the support flanging edges correspond to the tray flanging edges one to one and are connected through the connecting pieces. So far, the power battery module equipment is accomplished, because the support turn-ups is connected through the connecting piece with tray turn-ups one-to-one, guarantees that tray holding chamber and support holding chamber can press from both sides the electric core tightly to the tight fixed chamber of electric core clamp that forms, need not to beat again and glues the operation, improves production efficiency, reduction in production cost.
The power battery pack provided by the invention comprises the power battery module, and is quick and convenient to assemble.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power battery module according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is an exploded schematic view of a power battery module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first perspective structure of a tray according to an embodiment of the present invention;
FIG. 5 is an enlarged view at B in FIG. 4;
FIG. 6 is a structural diagram of a second perspective of a tray according to an embodiment of the present invention;
FIG. 7 is an enlarged view at C in FIG. 6;
FIG. 8 is a schematic structural diagram of a bracket according to an embodiment of the present invention;
FIG. 9 is an enlarged view at D of FIG. 8;
FIG. 10 is a schematic diagram of a first perspective view of a CCS assembly according to an embodiment of the present invention;
fig. 11 is a structural diagram of a second view of a CCS assembly according to a first embodiment of the present invention.
In the figure:
1. a tray; 11. a tray accommodating chamber; 12. flanging the tray; 121. installing a positioning piece; 13. a cell pressure relief hole; 14. a tray cell positioning and guiding structure; 141. a tray cell positioning guide block; 15. the tray reinforces the supporting structure; 151. a pallet reinforcing support block;
2. a support; 21. a bracket accommodating cavity; 22. flanging the support; 221. installing a positioning hole; 23. a support battery cell positioning structure; 231. a support battery cell positioning block; 24. a battery cell anode mounting hole;
3. a connecting member; 31. a plug-in unit; 311. a limiting cap; 312. a plug shaft;
4. an electrical core assembly; 41. an electric core;
51. a bus bar; 52. and collecting the wiring harness.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1 to 11, the present embodiment provides a power battery module, which is fast to assemble and has good structural strength.
Specifically, referring to fig. 1 and 2, in the present embodiment, the power battery module includes a tray, a bracket 2, and a connector 3.
A tray accommodating cavity 11 is arranged in the tray 1, and a tray flanging 12 is arranged on the side surface of the tray 1. Specifically, the tray 1 includes a tray bottom plate and tray side plates disposed on the side of the tray bottom plate, and one end of each tray side plate, which is far away from the tray bottom plate, is provided with a tray flange 12.
Be provided with support holding chamber 21 in the support 2, the side of support 2 is provided with support turn-ups 22, and support turn-ups 22 is connected with tray turn-ups 12 one-to-one to make tray holding chamber 11 and support holding chamber 21 to closing and form the tight fixed chamber of electric core clamp. Specifically, the support 2 includes a support top plate, two long sides of the support top plate are provided with support side plates, and one end of each support side plate, which is far away from the support top plate, is provided with a support flange 22.
The correspondingly connected bracket flange 22 is connected with the tray flange 12 through the connecting piece 3.
The power battery module that this embodiment provided is when the equipment, place tray 1 at the equipment station, tray holding chamber 11 sets up, place the lower extreme of the electric core 41 of power battery module in tray holding chamber 11, afterwards, with support holding chamber 21 down, make tray holding chamber 11 and support holding chamber 21 to closing to form electric core and press from both sides tight fixed chamber, electric core presss from both sides tight fixed chamber with electric core 41 and presss from both sides tightly in it, support turn-ups 22 and tray turn-ups 12 one-to-one and are connected through connecting piece 3. So far, the power battery module equipment is accomplished, because support turn-ups 22 and tray turn-ups 12 one-to-one are connected through connecting piece 3, guarantee that tray holding chamber 11 and support holding chamber 21 press from both sides tight fixed chamber to the electric core clamp that forms and can press from both sides electric core 41 tightly, need not to beat again and glue the operation, improve production efficiency, reduction in production cost.
Specifically, in this embodiment, the power battery module further includes a battery cell assembly 4, the battery cell assembly 4 includes a plurality of battery cells 41, and a negative electrode of each battery cell 41 is installed in the battery cell clamping fixing cavity in a clamping manner.
Specifically, a plurality of cells 41 are arranged in an array to form a cell assembly 4.
The lower surface of the negative electrode of the battery cell 41 is abutted against the inner side of the tray bottom plate, and the upper surface of the negative electrode of the battery cell 41 is abutted against the inner side of the bracket top plate.
Further, referring to fig. 8 and 9, the bracket 2 is provided with cell positive mounting holes 24 corresponding to the cells 41 one to one, and the positive posts of the cells 41 can pass through the cell positive mounting holes 24.
Specifically, the battery cell positive electrode mounting hole 24 is disposed on the top plate of the bracket.
Further, referring to fig. 2, 3 and 8, in the present embodiment, one of the tray flange 12 and the bracket flange 22 is provided with a mounting positioning member 121, and the other is provided with a mounting positioning hole 221 matched with the mounting positioning member 121. The arrangement of the mounting positioning member 121 and the mounting positioning hole 221 ensures that the tray accommodating chamber 11 and the rack accommodating chamber 21 are accurately aligned.
Specifically, in this embodiment, the tray flange 12 is provided with a mounting positioning member 121, and the bracket flange 22 is provided with a mounting positioning hole 221.
Specifically, referring to fig. 2, in the present embodiment, the connector 3 includes the connector 31, the connector 31 includes a limiting cap 311 and a connecting shaft 312 connected to the limiting cap 311, the connecting shaft 312 can sequentially pass through the bracket flange 22 and the tray flange 12, and the limiting cap 311 can abut against the bracket flange 22.
Further, the connecting piece 3 further comprises a nut, an external thread is arranged on the plug shaft 312, and the nut can be locked on the plug shaft 312.
Specifically, the bracket flange 22 and the tray flange 12 are both provided with connecting piece through holes, and the connecting piece through holes on the bracket flange 22 and the connecting piece through holes on the tray flange 12 are arranged in a one-to-one correspondence manner.
After the tray accommodating cavity 11 and the bracket accommodating cavity 21 are closed, the mounting positioning part 121 is inserted into the mounting positioning hole 221, and after the connecting part 3 passes through the bracket flange 22 and the tray flange 12, the limiting cap 311 is abutted to the bracket flange 22.
Further, the power battery module is locked and attached to the boundary beam of the box body of the power battery. The boundary beam of the box body is provided with locking holes which are in one-to-one correspondence with the inserting shafts 312. The plug shaft 312 passes through the bracket flange 22 and the tray flange 12 in sequence and then is inserted into the locking hole on the boundary beam, and at this time, the bolt is screwed on the plug shaft 312 and is abutted against the lower surface of the boundary beam of the box body, so that the power battery module is locked on the boundary beam of the box body of the power battery.
Further, referring to fig. 4-7, in this embodiment, the tray 1 plays a role of bearing and installing the battery assembly 4, and is provided with battery cell pressure relief holes 13 communicated with the tray accommodating cavity 11, where the battery cell pressure relief holes 13 are arranged in one-to-one correspondence with the battery cells 41.
Specifically, the cell pressure relief hole 13 is disposed on the tray bottom plate, and an inner diameter of the cell pressure relief hole 13 is smaller than a diameter of the cell 41.
Specifically, referring to fig. 4 and 5, on the surface of the tray 1 deviating from the tray accommodating cavity 11, a tray reinforcing and supporting structure 15 is arranged along the circumferential direction of the cell pressure relief holes 13, so that the structural strength of the tray 1 itself is prevented from being influenced after the cell pressure relief holes 13 are formed, and meanwhile, the tray reinforcing and supporting structure 15 can also support the power battery module, thereby ensuring the overall structural strength of the power battery module.
Specifically, referring to fig. 5, in the present embodiment, the tray reinforcing and supporting structure 15 includes a tray reinforcing and supporting block 151 protruding from a surface of the tray 1 away from the tray accommodating cavity 11, and reinforcing ribs are disposed on a circumferential direction of the tray reinforcing and supporting block 151.
The tray reinforcing support structure 15 can also serve to prevent adjacent cells 41 from leaning together.
Preferably, referring to fig. 5, the pallet reinforcing and supporting structure 15 includes several pallet reinforcing and supporting blocks 151. Further specifically, the tray reinforcing and supporting structure 15 includes six tray reinforcing and supporting blocks 151, and the six tray reinforcing and supporting blocks 151 are arranged at equal intervals along the circumferential direction of the cell pressure relief hole 13.
Preferably, two adjacent cell pressure relief holes 13 share two tray reinforcing support blocks 151 to save cost.
Further, referring to fig. 6 and 7, in the tray accommodating cavity 11, a tray cell positioning guide structure 14 is provided along the circumferential direction of the cell pressure relief hole 13. When the battery cell 41 is installed in the tray 1, the battery cell 41 needs to be coaxially arranged with the battery cell pressure relief hole 13, and the tray battery cell positioning guide structure 14 can play a positioning guide role in the installation of the battery cell 41, so that the coaxial arrangement of the battery cell 41 and the battery cell pressure relief hole 13 is ensured.
Further, referring to fig. 8 and 9, in this embodiment, in the support accommodating cavity 21, the support 2 is provided with support cell positioning structures 23, and the support cell positioning structures 23 correspond to the tray cell positioning guide structures 14 one to position the same cell 41.
Specifically, the support battery cell positioning structure 23 is configured to position the upper end of one battery cell 41, and the tray battery cell positioning guide structure 14 is configured to position the lower end of the battery cell 41, that is, the support battery cell positioning structure 23 and the tray battery cell positioning guide structure 14 that are correspondingly configured are configured to position the same battery cell 41.
Optionally, in other embodiments, the support cell positioning structure 23 is in a shape of an integrally continuous ring, the tray cell positioning guide structure 14 is also in a shape of an integrally continuous ring, and the annular support cell positioning structure 23 and the annular tray cell positioning guide structure 14 are arranged in a one-to-one correspondence manner, so as to position the cell 41.
After power battery module assembly is accomplished, tray electricity core location guide structure 14 is spacing to the lower extreme of electric core 41, and support electricity core location structure 23 is spacing to the upper end of electric core 41, and the two cooperates jointly, guarantees the accuracy of electric core 41 mounted position on the one hand, and on the other hand guarantees that electric core 41 is accurate to be pressed from both sides tightly in the tight fixed intracavity of electric core clamp, guarantees power battery module's overall structure intensity, need not the encapsulating reinforcing.
Specifically, referring to fig. 7, in the present embodiment, the tray cell positioning guide structure 14 includes a plurality of tray cell positioning guide blocks 141 distributed at intervals along the circumferential direction of the cell pressure relief hole 13.
Further specifically, in this embodiment, the tray cell positioning guide structure 14 includes six tray cell positioning guide blocks 141, and the six tray cell positioning guide blocks 141 are arranged at equal intervals along the circumferential direction of the cell pressure relief hole 13.
Preferably, each tray cell positioning guide block 141 can be shared by two adjacent cell pressure relief holes 13, so as to save cost and ensure arrangement density of the cells 41. Specifically, one tray cell positioning guide block 141 is substantially sheet-shaped, and two first positioning arc surfaces are arranged thereon, and the two first positioning arc surfaces are in one-to-one correspondence to the two cell pressure release holes 13.
Specifically, referring to fig. 9, the support cell positioning structure 23 includes a plurality of support cell positioning blocks 231 disposed at intervals along the circumferential direction of the cell positive electrode mounting hole 24.
Further specifically, the support battery core positioning structure 23 includes six support battery core positioning blocks 231, and the six support battery core positioning blocks 231 are arranged at equal intervals along the circumferential direction of the battery core positive electrode mounting hole 24.
Preferably, in this embodiment, the projection along the axial direction of the cell positive electrode mounting hole 24, the projection of one support cell positioning block 231 of the support cell positioning structure 23 is located between two adjacent tray cell positioning guide blocks 141 of the tray cell positioning guide structure 14 corresponding to the support cell positioning structure 23.
Namely: after the power battery module is assembled, the corresponding support battery core positioning structure 23 and the tray battery core positioning guide structure 14 are arranged along the axis direction of the battery core 41 at a relative interval. In the correspondingly arranged support battery cell positioning structure 23 and the tray battery cell positioning and guiding structure 14, the support battery cell positioning block 231 and the tray battery cell positioning and guiding block 141 are arranged in a staggered manner.
That is, the bracket cell positioning block 231 and the tray cell positioning guide block 141 are arranged in a staggered manner in the circumferential direction of the cell 41. Along the axial direction projection of the positive electrode mounting hole 24 of the battery cell, the bracket battery cell positioning block 231 and the tray battery cell positioning guide block 141 can form a closed ring, so that twelve limiting forces towards the axial line of the battery cell 41 are applied to the battery cell 41, and the battery cell 41 is ensured to be fixed and isolated.
Further, referring to fig. 1, 3, 10 and 11, the power battery module further includes a CCS assembly. The CCS assembly, also called a battery module collection integrated assembly, is used for collecting relevant parameters of the electric core assembly 4 of the power battery module, such as voltage collection and temperature collection.
Specifically, referring to fig. 10 and 11, in the present embodiment, the CCS assembly includes a rack 2, a bus bar 51, and a collection harness 52.
The busbar 51 is integrated onto the support 2; the collection harness 52 is connected to the bus bar 51 and is integrated into the rack 2.
The prior art typically first mounts the buss bars 51 and collection harnesses 52 to a plastic carrier, integrates the CCS assembly, and then assembles the CCS assembly to a module carrier. The embodiment integrates the bus bar 51 and the collection wire harness 52 on the bracket 2, and can assemble CCS assembly integrated materials. After the support 2 and the tray 1 are installed in place, the CCS assembly is also installed, and the assembling efficiency of the power battery module is further improved.
Specifically, in the support accommodating cavity 21, a collecting harness clamping plate is arranged on the support 2, and the collecting harness is arranged in the collecting harness clamping plate. Meanwhile, the inner side of the bracket side plate is also provided with a collection harness 52. The collecting wire harness 52 is welded with nickel sheets, and each nickel sheet is welded on the busbar 51, so as to collect a voltage signal of the battery cell 41. Meanwhile, the acquiring harness 52 is further provided with an NTC for acquiring a temperature signal of the battery cell 41.
Specifically, in the present embodiment, the bracket 2 is a plastic bracket.
Example two
The embodiment provides a power battery pack, which comprises the power battery module and a box body in the first embodiment. The power battery module is arranged in the box body.
Further, the box body comprises a side beam, and the side beam, the bracket flange 22 and the tray flange 12 are fixedly connected through the connecting piece 3.
Specifically, the power battery module is locked and attached to the boundary beam of the box body of the power battery pack. The boundary beam of the box body is provided with locking holes which are in one-to-one correspondence with the inserting shafts 312. The plug shaft 312 passes through the bracket flange 22 and the tray flange 12 in sequence and then is inserted into the locking hole on the boundary beam, and at the moment, the bolt is screwed on the plug shaft 312 and is abutted against the lower surface of the boundary beam of the box body, so that the power battery module is locked on the boundary beam of the box body of the power battery pack.
In this embodiment, support 2 and tray 1 pass through connecting piece 3 lock and attach to the boundary beam of box for power battery module and power battery package all have higher mechanical strength.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (16)
1. Power battery module, its characterized in that includes:
the tray comprises a tray (1), wherein a tray accommodating cavity (11) is formed in the tray (1), and a tray flanging (12) is arranged on the side surface of the tray (1);
the battery cell clamping device comprises a support (2), wherein a support accommodating cavity (21) is formed in the support (2), support flanges (22) are arranged on the side surfaces of the support (2), and the support flanges (22) are connected with tray flanges (12) in a one-to-one corresponding mode, so that the tray accommodating cavity (11) and the support accommodating cavity (21) are closed to form a battery cell clamping fixing cavity;
the bracket flanging (22) and the tray flanging (12) which are correspondingly connected are connected through the connecting piece (3).
2. The power battery module as recited in claim 1, wherein one of the tray flange (12) and the bracket flange (22) is provided with a mounting positioning member (121), and the other is provided with a mounting positioning hole (221) engaged with the mounting positioning member (121).
3. The power battery module as recited in claim 1, wherein the connecting member (3) comprises a plug member (31), the plug member (31) comprises a limiting cap (311) and a plug shaft (312) connected with the limiting cap (311), the plug shaft (312) can sequentially pass through the support flange (22) and the tray flange (12), and the limiting cap (311) can abut against the support flange (22).
4. The power battery module as claimed in claim 3, characterized in that the connecting piece (3) further comprises a nut, wherein the plug shaft (312) is provided with an external thread, and the nut can be locked on the plug shaft (312).
5. The power battery module as set forth in claim 1, wherein the tray (1) is provided with cell pressure relief holes (13) communicated with the tray accommodating cavity (11), and the cell pressure relief holes (13) are arranged in one-to-one correspondence with the cells (41).
6. The power battery module as claimed in claim 5, wherein a tray cell positioning guide structure (14) is arranged in the tray accommodating cavity (11) along the circumferential direction of the cell pressure relief hole (13).
7. The power battery module as recited in claim 6, wherein in the support accommodating cavity (21), the support (2) is provided with support cell positioning structures (23), and the support cell positioning structures (23) are in one-to-one correspondence with the tray cell positioning guide structures (14) to position the same cell (41).
8. The power battery module as recited in claim 7, wherein the tray cell positioning guide structure (14) comprises a plurality of tray cell positioning guide blocks (141) spaced apart along a circumferential direction of the cell pressure relief hole (13).
9. The power battery module set according to claim 8, wherein the bracket (2) is provided with cell positive mounting holes (24) corresponding to the cells (41) one by one, and the bracket cell positioning structure (23) comprises a plurality of bracket cell positioning blocks (231) arranged at intervals along the circumferential direction of the cell positive mounting holes (24).
10. The power battery module set of claim 9, wherein, in the axial projection of the battery cell positive electrode mounting hole (24), the projection of one of the bracket battery cell positioning blocks (231) of the bracket battery cell positioning structure (23) is located between two adjacent tray battery cell positioning guide blocks (141) of the tray battery cell positioning guide structure (14) corresponding to the bracket battery cell positioning structure (23).
11. The power battery module as recited in claim 5, wherein a tray reinforcing support structure (15) is arranged on the surface of the tray (1) facing away from the tray accommodating cavity (11) along the circumferential direction of the cell pressure relief holes (13).
12. The power battery module as recited in claim 11, wherein the tray reinforcing and supporting structure (15) comprises a tray reinforcing and supporting block (151) protruding from the surface of the tray (1) facing away from the tray accommodating cavity (11), and reinforcing ribs are arranged on the circumference of the tray reinforcing and supporting block (151).
13. The power battery module of any of claims 1-12, further comprising a CCS assembly, the CCS assembly comprising:
a busbar (51) integrated to the bracket (2);
a collection wire harness (52) connected to the busbar (51) and integrated onto the bracket (2), the collection wire harness (52) being electrically connected to the busbar (51).
14. The power battery module as claimed in any one of claims 1-12, wherein the power battery module further comprises an electric core assembly (4), the electric core assembly (4) comprises a plurality of electric cores (41), and a negative electrode of each electric core (41) is clamped and installed in the electric core clamping and fixing cavity.
15. A power battery pack, characterized by comprising a box body and the power battery module as claimed in any one of claims 1 to 14, wherein the power battery module is arranged in the box body.
16. The power battery pack of claim 15, wherein the box body comprises a side beam, and the side beam, the bracket flange (22) and the tray flange (12) are fixedly connected through the connecting piece (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553094.6A CN115621651A (en) | 2022-12-06 | 2022-12-06 | Power battery module and power battery pack |
| PCT/CN2023/072257 WO2024119589A1 (en) | 2022-12-06 | 2023-01-16 | Power battery module support, power battery module and power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211553094.6A CN115621651A (en) | 2022-12-06 | 2022-12-06 | Power battery module and power battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115621651A true CN115621651A (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211553094.6A Pending CN115621651A (en) | 2022-12-06 | 2022-12-06 | Power battery module and power battery pack |
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| Country | Link |
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| CN (1) | CN115621651A (en) |
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