CN116053691B - Battery cell fixing support, battery module and vehicle - Google Patents
Battery cell fixing support, battery module and vehicle Download PDFInfo
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- CN116053691B CN116053691B CN202310034564.6A CN202310034564A CN116053691B CN 116053691 B CN116053691 B CN 116053691B CN 202310034564 A CN202310034564 A CN 202310034564A CN 116053691 B CN116053691 B CN 116053691B
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- frame
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- battery
- cell fixing
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- 238000006073 displacement reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/10—Arrangements of batteries for propulsion
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery cell fixing support, a battery module and a vehicle, wherein the battery cell fixing support comprises: the battery cell fixing device comprises a frame body, wherein 2N battery cell fixing holes are formed in the frame body, the adjacent battery cell fixing holes are arranged at intervals, the 2N battery cell fixing holes comprise N first battery cell fixing holes and N second battery cell fixing holes, the first battery cell fixing holes are used for inserting and fixing first bosses of the positive electrodes of the battery cells, and the second battery cell fixing holes are used for inserting and fixing second bosses of the negative electrodes of the battery cells, wherein N is an integer greater than or equal to 1.
Description
Technical Field
The invention relates to the technical field of battery cells, in particular to a battery cell fixing bracket, a battery module and a vehicle.
Background
The electric vehicle has the characteristics of convenience, economy, environmental protection and the like, and is widely used on short trips. The lithium titanate battery pack is used as a power source of the electric vehicle and needs to have the capability of bearing vibration caused by bumpy road conditions in the riding process of the electric vehicle. Therefore, a stable and firm fastening of the components within the battery pack is required. At present, the structure of the fixing support is designed mainly aiming at the appearance characteristics of the battery core, the head part and the tail part of the battery core are fixed at first, and then the battery core fixing support is manufactured by injection molding through a plastic die. The fixing support is easy to deform, the fixing strength is relatively weak, and relative displacement is easy to occur, so that the safety and stability of the battery cell are affected.
Disclosure of Invention
An aim of the embodiment of the application is to provide a battery cell fixing support, a battery module and a vehicle, and the problem that the existing battery cell fixing support is easy to deform and relatively weak in fixing strength and easy to generate relative displacement is solved.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, the present application provides a cell fixing support, the cell fixing support comprising:
the battery cell fixing device comprises a frame body, wherein 2N battery cell fixing holes are formed in the frame body, the adjacent battery cell fixing holes are arranged at intervals, the 2N battery cell fixing holes comprise N first battery cell fixing holes and N second battery cell fixing holes, the first battery cell fixing holes are used for inserting and fixing first bosses of the positive electrodes of the battery cells, and the second battery cell fixing holes are used for inserting and fixing second bosses of the negative electrodes of the battery cells, wherein N is an integer greater than or equal to 1.
Optionally, the support body includes the orientation the first frame face of electric core, first frame face is equipped with fixed frame, fixed frame encircles the week of first frame face is followed and is set up, just fixed frame is formed with a plurality of arc grooves, the arc groove with the radian of electric core is unanimous.
Optionally, the first frame surface is further provided with a plurality of limiting protrusions located in the fixing frame, and the limiting protrusions are used for being abutted to the adjacent battery cells.
Optionally, the spacing protruding is the triangular prism that includes three same cambered surface, spacing protruding three cambered surface respectively with three adjacent electric core butt.
Optionally, the frame body further includes a second frame surface opposite to the first frame surface, the second frame surface is provided with a first frame for installing the busbar, and the first frame is arranged on the periphery of the first electric core fixing hole and/or the periphery of the second electric core fixing hole.
Optionally, the first frame includes a first sub-frame and a second sub-frame, the first sub-frame forms a first space, a first electric core fixing hole and a second electric core fixing hole are arranged in the first space, and a first opening is arranged in the first space; the second sub-frame is provided with a second space, a first battery core fixing hole and a second battery core fixing hole are arranged in the second space, the second space is provided with a second opening, and the second opening faces the first opening.
Optionally, a clamping groove structure is arranged between the two adjacent first sub-frames and the second sub-frames, and the clamping groove structure is used for fixing the cable of the battery cell;
in the two adjacent first sub-frames and the second sub-frames, the first opening of the first sub-frame and the second opening of the second sub-frame are arranged opposite to each other.
Optionally, the clamping groove structure comprises a first side plate and a second side plate, the first side plate and the second side plate are oppositely arranged, and a space between the first side plate and the second side plate forms a containing groove for containing the cable of the battery cell.
Optionally, the clamping groove structure comprises a first side plate and a second side plate, the first side plate and the second side plate are oppositely arranged, and a space between the first side plate and the second side plate forms a containing groove;
the first side plate is far away from one end of the second frame face is provided with a first hook, one end of the second side plate is far away from the second frame face is provided with a second hook, and the distance of a gap formed between the first hook and the second hook is smaller than the width of the accommodating groove.
In a second aspect, the application further provides a battery module, the battery module includes 2N electric cores and the electric core fixing support according to any one of the first aspect, the number of the electric core fixing supports is 2, and two ends of the 2N electric cores are respectively inserted into two electric core fixing supports.
In a third aspect, the present application also provides a vehicle comprising the battery module set according to any one of the first aspects.
In this embodiment of the present application, the plurality of battery cells may be fixed to form a whole through the above-mentioned battery cell fixing bracket. Through set up 2N electric core fixed orifices on electric core fixed bolster, insert first electric core fixed orifices and second electric core fixed orifices with the first boss of electric core positive pole and the second boss of electric core negative pole respectively. Like this, first electric core fixed orifices is used for inserting first boss, and the second electric core fixed orifices is used for inserting the second boss, and in electric core fixed orifices was gone into to first boss and second boss card for the rotation of electric core is restricted, can greatly reduced electric core take place pivoted possibility in electric core fixed bolster, reinforcing electric core fixed strength of support, effectively promotes the security and the stability of electric core.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a battery cell fixing bracket according to an embodiment of the present application;
FIG. 2 is a schematic view of the first frame surface in FIG. 1;
FIG. 3 is a schematic view of the second frame surface in FIG. 1;
fig. 4 is a second schematic structural diagram of a battery cell fixing bracket according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of the second frame surface in FIG. 4;
FIG. 6 is a schematic diagram of the structure of the card slot in FIG. 5;
fig. 7 is a second schematic structural diagram of a battery cell fixing bracket according to an embodiment of the present disclosure;
fig. 8 is a third schematic structural view of a battery cell fixing bracket according to an embodiment of the present disclosure;
the reference numerals are as follows:
10: a frame body;
11: a cell fixing hole; 111: a first cell fixing hole;
112: the second cell fixing hole; 12: a first frame surface; 121: a fixed frame; 1211: an arc-shaped groove; 1212: a limit protrusion;
13: a second shelf surface; 131: a first frame; 1311: a first sub-frame; 1312: a second sub-frame; 132: a clamping groove structure; 1321: a first side; 1322: a second side plate;
20: a battery cell; 21: a first boss; 22: a second boss; 23: a cable; 30: and a bus bar.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
An embodiment of the present application provides a battery cell fixing support, please refer to fig. 1 and fig. 2, fig. 1 is one of schematic structural diagrams of the battery cell fixing support provided in the embodiment of the present application, fig. 2 is a schematic structural diagram of a first frame surface in fig. 1, and specifically includes:
the battery cell fixing device comprises a frame body 10, wherein 2N battery cell fixing holes 11 are formed in the frame body 10, the adjacent battery cell fixing holes 11 are arranged at intervals, the 2N battery cell fixing holes 11 comprise N first battery cell fixing holes 111 and N second battery cell fixing holes 112, the first battery cell fixing holes 111 are used for inserting and fixing first bosses 21 of the positive electrodes of the battery cells 20, and the second battery cell fixing holes 112 are used for inserting and fixing second bosses 22 of the negative electrodes of the battery cells 20, wherein N is an integer larger than or equal to 1.
It should be noted that, the above-mentioned cell fixing support may be used to fix 2N cells 20, and form a battery pack with the fixed 2N cells 20. The 2N electric cores correspond to 2N electric core fixing holes, including N first electric core fixing holes 111 and N second electric core fixing holes 112. The first cell fixing hole 111 and the second cell fixing hole 112 may be disposed adjacently, so that the positive and negative poles of the adjacent cells 20 are staggered, and the possibility of simultaneous rotational displacement of the adjacent cells 20 is reduced as much as possible. The above-mentioned cell fixing hole 11 may be disposed on the frame body 10 of the cell fixing support, and penetrate through a structure of the frame body 10 for fixing two ends of the cell 20, where the cell fixing hole 11 may be designed differently according to different designs of boss structures on the positive and negative electrodes of different cells 20, and the first cell fixing hole 111 is adapted to the first boss 21 of the positive electrode of the cell 20, and the second cell fixing hole 112 is adapted to the second boss 22 of the negative electrode of the cell 20. For example, the first boss 21 of the positive electrode of the lithium titanate cylindrical battery cell may be a combined structure of a cuboid and a cylinder protruding toward the extending direction of the positive electrode of the battery cell, and the first battery cell fixing hole 111 may be designed to have a "convex" structure. The second boss 22 of the negative electrode of the lithium titanate cylindrical battery cell may be a cuboid structure protruding toward the extending direction of the negative electrode of the battery cell, and the second battery cell fixing hole 112 may be designed to be a rectangular structure. Under the fixation of the cell fixing holes 11 with different shapes, the first boss 21 and the second boss 22 are fixed, and the cell is not easy to rotate and displace.
It should be noted that, the current widely used battery cell fixing support is designed mainly for the appearance characteristic of the battery cell 20, and the battery cell 20 is fixed by fixing the positive and negative electrode structures of the battery cell 20, so that the battery cell 20 does not generate relative displacement in the three-dimensional space, and the purpose of fixing the battery cell 20 is achieved. Meanwhile, the current cell fixing bracket is mainly made of plastic materials, mainly uses polycarbonate, acrylonitrile-butadiene-styrene copolymer and mixture with different proportions as raw materials, and is manufactured by an injection molding machine and a mold. In addition, the battery cell fixing brackets usually exist in pairs and are respectively arranged at the positive electrode and the negative electrode of the battery cell 20, and due to the lack of a design for preventing the battery cell 20 from rotating, the battery cells 20 are stressed unevenly along with vibration in the running process of the assembled electric vehicle, so that the bus bars 30 are easy to loosen, the contact internal resistances among the battery cells 20 are inconsistent, and the service life and the safety of the battery pack are finally influenced. Therefore, the problem that the electric core 20 is easy to displace and rotate can be effectively solved through the electric core fixing support provided in the embodiment of the application, wherein the fixing strength between the electric core 20 and the electric core fixing support is weaker.
In this embodiment of the present application, the first boss 21 of the positive electrode of the battery cell 20 may be fixed in the first battery cell fixing hole 111 by setting 2N battery cell fixing holes 11 on the frame body 10, the second boss 22 of the negative electrode of the battery cell 20 is fixed in the second battery cell fixing hole 112, the battery cell fixing holes 11 limit the relative positions between the battery cells 20, reduce the possibility of displacement of the battery cell 20, and play a role in fixing the battery cell 20 and enhancing the stability of the battery cell 20. In practical application, the first battery cell fixing hole 111 and the second battery cell fixing hole 112 solve the problems that the battery cell 20 is easy to rotate in the battery pack and loose due to vibration in the running process of the electric vehicle under the bumpy road condition, the battery cell fixing support can fix the position of the battery cell 20 and is not easy to deform, the fixing strength of the battery cell 20 is high, and the stability and safety of the battery cell 20 in the battery pack are enhanced.
Optionally, the frame body 10 includes a first frame surface 12 facing the battery cell 20, the first frame surface 12 is provided with a fixing frame 121, the fixing frame 121 is disposed around a peripheral edge of the first frame surface 12, and the fixing frame 121 is formed with a plurality of arc grooves 1211, and the arc grooves 1211 are consistent with an arc of the battery cell 20.
In a specific embodiment of the present application, the side of the frame body 10 facing the battery cell 20 may be a first frame surface 12, and the edge portion of the first frame surface 12 is provided with a fixing frame 121 around the peripheral edge. The space formed by the fixing frame 121 and the first frame surface 12 is used for accommodating two ends of the fixed battery cell 20, specifically, the depth of the fixing frame 121 can be designed to be one tenth of the length of the battery cell 20, and the two ends of the battery cell 20 are respectively fixed in the fixing frames of the two opposite frame bodies 10, so that the movement of the battery cell 20 can be effectively limited. Meanwhile, the fixing frame 121 is formed with a plurality of arc grooves 1211, the arc grooves 1211 are used for limiting the movement of the battery cells 20 adjacent to the fixing frame 121, the arc grooves 1211 are consistent with the radian of the battery cells 20, so that the arc grooves 1211 can abut against the side walls of the battery cells 20, the battery cells 20 are fixed on the frame body 10, and the possibility of displacement of the battery cells 20 is reduced.
Optionally, the first frame surface 12 is further provided with a plurality of limit protrusions 1212 located in the fixing frame 121, where the limit protrusions 1212 are configured to abut against the adjacent battery cells 20.
Specifically, a plurality of limit protrusions 1212 positioned in the fixing frame 121 are further disposed in the first frame 12, any two adjacent limit protrusions 1212 positioned in the fixing frame 121 can be connected through an arc groove 1211, the arc groove 1211 accommodates the side wall of the fixed battery cell 20, the limit protrusions 1212 at two ends of the arc groove 1211 can also abut against the side wall of the battery cell 20, movement of the battery cell 20 can be effectively limited, the position of the battery cell 20 is restrained, and stability between the battery cell 20 and the battery cell fixing bracket is enhanced.
Optionally, the limit protrusion 1212 is a triangular prism including three identical cambered surfaces, and the three cambered surfaces of the limit protrusion 1212 are respectively abutted against three adjacent battery cells 20.
With continued reference to fig. 2, in this embodiment, the limit protrusion 1212 is configured as a triangular prism having three identical cambered surfaces, and the three cambered surfaces of the triangular prism are respectively abutted against three adjacent electric cores 20, so that the periphery of one electric core 20 can be fixed by the three triangular prisms, so as to restrict the position of the electric core 20 and limit the displacement of the electric core 20. The fixing structure formed by the arc-shaped groove 1211 and a triangular prism at the peripheral edge part of the first frame surface 12 can fix one cell 20, so as to effectively limit the movement of the cell 20.
Optionally, the frame body 10 further includes a second frame surface 13 opposite to the first frame surface 12, where the second frame surface 13 is provided with a first frame 131 for mounting the busbar 30, and the first frame 131 is disposed on the outer periphery of the first cell fixing hole 111 and/or the outer periphery of the second cell fixing hole 112.
Referring to fig. 3, specifically, the rack body 10 further includes a second rack surface 13 located on the opposite side of the first rack surface 12, the second rack surface 13 may be used for installing the bus bars 30, the bus bars 30 may collect the cables of the battery cells 20, the cables 23 are routed and fixed in the second rack surface 13, and finally led out of the second rack surface 13 to be connected with a battery management system (Battery Management System, BMS). Referring to fig. 4, in the embodiment of the present application, the bus bar 30 on the second frame surface 13 is installed in the first frame 131, and the first frame 131 has various arrangement manners, which may be disposed at the outer periphery of the first cell fixing hole 111, or disposed at the outer periphery of the second cell fixing hole 112, or disposed at the outer periphery of two adjacent parallel first cell fixing holes 111 and second cell fixing holes 112. The first frame 131 may be disposed at a side of the cell fixing hole 11 in an unclosed state. By arranging the first frame 131 at the side edge of the first cell fixing hole 111 and/or the side edge of the second cell fixing hole 112, the cell fixing hole 11 in the second frame surface 13 can be planned, and the bus bar 30 is fixed within the range of the first frame 131, so that the layout design of the cables 23 of the cell 20 is facilitated, and the risk of damaging the cables 23 is reduced.
Optionally, the first frame 131 includes a first sub-frame 1311 and a second sub-frame 1312, where the first sub-frame 1311 forms a first space, a first cell fixing hole 111 and a second cell fixing hole 112 are disposed in the first space, and the first space is provided with a first opening; the second sub-frame 1312 is formed with a second space, a first cell fixing hole 111 and a second cell fixing hole 112 are disposed in the second space, and a second opening is disposed in the second space, and the second opening faces the first opening.
With continued reference to fig. 4, the first frame 131 may include a first sub-frame 1311 and a second sub-frame 1312, where the first sub-frame 1311 is disposed at the periphery of the adjacent first cell fixing hole 111 and second cell fixing hole 112 and is in an unclosed structure, and the first sub-frame 1311 may enclose a first space, and the first space has a first opening due to the unclosed structure. Similarly, the second sub-frame 1312 may be disposed at the outer periphery of the adjacent first cell fixing hole 111 and second cell fixing hole 112 to form an unclosed structure, and the second sub-frame 1312 may enclose a second space, where the unclosed structure has a second opening. In this embodiment of the present application, the first opening may be set towards the second opening, where the first opening and the second opening are set opposite to each other, so that the first sub-frame 1311 and the second sub-frame 1312 may form a space, and may include two first cell fixing holes 111 and two second cell fixing holes 112, in this space, a bus bar 30 is set, and the bus bar 30 may be clamped between the first sub-frame 1311 and the second sub-frame 1312, so that the first sub-frame 1311 and the second sub-frame 1312 play a role of fixing the bus bar 30, so as to reduce the possibility of contact difference between the cell 20 and the bus bar 30 caused by vibration of the electric vehicle, and improve the service life and safety performance of the battery pack.
Optionally, a clamping groove structure 132 is disposed between two adjacent first sub-frames 1311 and second sub-frames 1312, and the clamping groove structure 132 is used for fixing the cable 23 of the battery cell 20;
among the two adjacent first sub-frames 1311 and second sub-frames 1312, the first opening of the first sub-frame 1311 and the second opening of the second sub-frame 1312 are disposed opposite to each other.
Referring to fig. 4 and fig. 5, specifically, a clamping groove structure 132 is further disposed in the second frame surface 13, the clamping groove structure 132 is disposed between two parallel and adjacent first sub-frames 1311 and 1312, the first opening of the first sub-frame 1311 may be disposed opposite to the second opening of the second sub-frame 1312, and the two adjacent first sub-frame 1311 and second sub-frame 1312 are respectively provided with a bus bar 30, which are not connected with each other. Thus, the cables 23 of the battery cells 20 in the second rack face 13 can be conveniently routed, and the clamping groove structure 132 can fix the cables 23 of the battery cells 20, so that the problem of confusion of the cables 23 easily occurring in the second rack face 13 is solved.
Optionally, the card slot structure 132 includes a first side plate 1321 and a second side plate 1322, where the first side plate 1321 and the second side plate 1322 are disposed opposite to each other, and a space between the first side plate 1321 and the second side plate 1322 forms a receiving slot for receiving the cable 23 of the electrical core 20;
the first side plate 1321 is provided with a first hook 1323 at an end far away from the second frame surface 13, the second side plate 1322 is provided with a second hook 1324 at an end far away from the second frame surface 13, and a gap formed between the first hook 1323 and the second hook 1324 is smaller than the width of the accommodating groove.
Referring to fig. 6, the slot structure 132 in the second frame surface 13 may be composed of two opposite side plates, the first side plate 1321 and the second side plate 1322 may be perpendicular to the second frame surface 13, and a certain distance is set between the first side plate 1321 and the second side plate 1322 to form a space for accommodating the cable 23 of the battery cell 20, so as to restrict the wiring of the cable 23 of the battery cell 20 in the second frame surface 13, thereby facilitating assembly and reducing assembly cost.
Specifically, the first side plate 1321 is provided with a first hook 1323 structure and the second side plate 1322 is provided with a second hook 1324 structure, and when the first side plate 1321 and the second side plate 1322 are arranged opposite to each other, the distance between the first hook 1323 and the second hook 1324 is smaller than the width of the accommodating groove formed by the first side plate 1321 and the second side plate 1322. Thus, the cable 23 of the battery cell 20 disposed in the accommodating groove is fixed by the structure formed by the first hook 1323 and the second hook 1324, and is difficult to separate from the accommodating groove, so that the cable 23 of the battery cell 20 is effectively fixed.
It should be understood that, the battery cell fixing support in this embodiment of the present application may further be provided with a first frame as shown in fig. 7 or a first frame as shown in fig. 8, and may further be provided with a fixing frame as shown in fig. 7 or a fixing frame as shown in fig. 8, where the number of card slot structures in the second frame surface is not limited in this application, and may be set according to actual needs.
In another embodiment of the present application, a battery module is further included, the battery module includes 2N electric cells and the electric cell fixing support according to any one of the first aspect, the number of the electric cell fixing supports is 2, and two ends of the 2N electric cells are respectively inserted into two electric cell fixing supports.
In this embodiment, the battery module includes the battery cell fixing bracket in the above embodiment, and the specific structure may be determined with reference to the above embodiment, which is not described herein. Since the battery cell fixing bracket in the above embodiment is adopted in the present embodiment, the battery module provided in the present embodiment has all the beneficial effects in all the above embodiments. In practical application, two ends of a battery cell can be respectively fixed in two frame bodies, the two frame bodies are opposite to each other, the first frame surfaces of the two frame bodies are opposite to each other, and the positive electrode and the negative electrode of the battery cell are respectively fixed on the first frame surface of the first frame body and the first frame surface of the second frame body. The application does not limit the quantity of the battery cells arranged in the battery module and the quantity of the battery cell fixing holes arranged in the battery cell fixing support, and can be specifically arranged according to actual application requirements.
The application further provides a vehicle, which includes the battery module in the above embodiment, and the beneficial effects of the embodiment can be determined with reference to the above embodiment, and will not be described herein.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A cell fixing support, comprising:
the battery cell fixing device comprises a frame body, wherein 2N battery cell fixing holes are formed in the frame body, the adjacent battery cell fixing holes are arranged at intervals, the 2N battery cell fixing holes comprise N first battery cell fixing holes and N second battery cell fixing holes, the first battery cell fixing holes are used for inserting and fixing first bosses of the positive electrodes of the battery cells, the second battery cell fixing holes are used for inserting and fixing second bosses of the negative electrodes of the battery cells, and N is an integer greater than or equal to 1;
the frame body comprises a first frame surface facing the battery cell, the first frame surface is provided with a fixed frame, the fixed frame is arranged around the periphery of the first frame surface, the fixed frame is provided with a plurality of arc grooves, and the arc grooves are consistent with the radian of the battery cell;
the frame body further comprises a second frame surface opposite to the first frame surface, a first frame for installing the busbar is arranged on the second frame surface, and the first frame is arranged on the periphery of the first cell fixing hole and/or the periphery of the second cell fixing hole;
the first frame comprises a first sub-frame and a second sub-frame, a first space is formed in the first sub-frame, a first battery cell fixing hole and a second battery cell fixing hole are formed in the first space, and a first opening is formed in the first space; the second sub-frame is provided with a second space, a first battery core fixing hole and a second battery core fixing hole are arranged in the second space, a second opening is arranged in the second space, and the second opening faces the first opening;
a clamping groove structure is arranged between the two adjacent first sub-frames and the second sub-frames, and the clamping groove structure is used for fixing the cable of the battery cell;
in the two adjacent first sub-frames and the second sub-frames, the first opening of the first sub-frame and the second opening of the second sub-frame are arranged opposite to each other.
2. The cell fixing support according to claim 1, wherein a plurality of limiting protrusions located in the fixing frame are further arranged on the first frame surface, and the limiting protrusions are used for being abutted with adjacent cells.
3. The cell fixing bracket according to claim 2, wherein the limit protrusion is a triangular prism comprising three identical cambered surfaces, and the three cambered surfaces of the limit protrusion are respectively abutted with three adjacent cells.
4. The cell fixing bracket according to claim 1, wherein the clamping groove structure comprises a first side plate and a second side plate, the first side plate and the second side plate are oppositely arranged, and a space between the first side plate and the second side plate forms a containing groove;
the first side plate is far away from one end of the second frame face is provided with a first hook, one end of the second side plate is far away from the second frame face is provided with a second hook, and the distance of a gap formed between the first hook and the second hook is smaller than the width of the accommodating groove.
5. A battery module, characterized in that the battery module comprises 2N electric cores and the electric core fixing brackets according to any one of claims 1-4, the number of the electric core fixing brackets is 2, and two ends of the 2N electric cores are respectively inserted into two electric core fixing brackets.
6. A vehicle comprising the battery module according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310034564.6A CN116053691B (en) | 2023-01-10 | 2023-01-10 | Battery cell fixing support, battery module and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310034564.6A CN116053691B (en) | 2023-01-10 | 2023-01-10 | Battery cell fixing support, battery module and vehicle |
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| CN116053691A CN116053691A (en) | 2023-05-02 |
| CN116053691B true CN116053691B (en) | 2024-02-23 |
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|---|---|
| CN116053691A (en) | 2023-05-02 |
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