CN116799418B - Battery module, energy storage system and electric equipment - Google Patents
Battery module, energy storage system and electric equipment Download PDFInfo
- Publication number
- CN116799418B CN116799418B CN202311060071.6A CN202311060071A CN116799418B CN 116799418 B CN116799418 B CN 116799418B CN 202311060071 A CN202311060071 A CN 202311060071A CN 116799418 B CN116799418 B CN 116799418B
- Authority
- CN
- China
- Prior art keywords
- fixing
- battery module
- hole
- petal
- shaped structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 31
- 230000000670 limiting effect Effects 0.000 claims abstract description 79
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 238000003780 insertion Methods 0.000 claims abstract description 18
- 230000037431 insertion Effects 0.000 claims abstract description 18
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 12
- 230000002829 reductive effect Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- VVNXEADCOVSAER-UHFFFAOYSA-N lithium sodium Chemical compound [Li].[Na] VVNXEADCOVSAER-UHFFFAOYSA-N 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
Classifications
-
- 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
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses a battery module, energy storage system and consumer relates to energy storage technical field. The battery module includes: the two fixing end plates are oppositely arranged, the end surfaces of the fixing end plates form mounting grooves, and limiting holes are formed in the mounting grooves; the insulation base is provided with a supporting surface, a fixing surface, a first positioning convex part protruding out of the supporting surface and a fixing foot, the end part of the fixing foot is of a petal-shaped structure, the first positioning convex part is inserted into the mounting groove, the fixing foot is inserted into the limiting hole, and at least part of the petal-shaped structure extends out of the limiting hole; the fixing bolt is screwed in the threaded hole, the first end of the fixing bolt stretches into the insertion hole, the petal-shaped structure is promoted to elastically expand to be abutted with the hole opening edge of the limiting hole, and the second end of the fixing bolt limits the metal switching piece on the fixing surface. In this embodiment, through the elastic expansion of petal-shaped structure and the butt in spacing hole, realize insulating base can dismantle on fixed end plate and be connected, avoid causing the scrapping of fixed end plate.
Description
Technical Field
The application relates to the technical field of energy storage, in particular to a battery module, an energy storage system and electric equipment.
Background
The battery module is a battery structure in which a plurality of unit batteries are connected in series to realize high-voltage output. The battery module generally includes two fixed end plates disposed opposite to each other, and a plurality of unit cells fixed between the two fixed end plates. An insulated output electrode base is arranged on the fixed end plate, and an output electrode aluminum bar and an output copper bar are fixedly connected to the output electrode base, so that the electric connection between the battery module and an external circuit is realized, and meanwhile, the electric conduction between the single battery and the fixed end plate is avoided.
In the related art, when the output electrode base is disposed on the fixed end plate, the output electrode base is generally fixedly connected by adopting a welding manner. Thus, although the output pole base is fixed on the fixed end plate, the output pole base and the fixed end plate are not detachable, and when the output pole base is connected and fails, the whole fixed end plate is scrapped, so that the resource waste is caused.
Disclosure of Invention
One main aim of the application is to provide a battery module, an energy storage system and electric equipment convenient to realize that insulating base and fixed end plate are dismantled.
In order to achieve the purposes of the application, the application adopts the following technical scheme:
according to an aspect of the present application, there is provided a battery module including:
the fixing end plates are oppositely arranged, a containing position is formed between the two fixing end plates, the fixing end plates form a mounting groove on the end face of the battery module in the height direction, and a limiting hole positioned at the bottom of the groove is formed in the mounting groove;
a plurality of single batteries are accommodated in the accommodation position;
the insulation base is provided with a supporting surface, a fixing surface, a first positioning convex part and a fixing foot, wherein the first positioning convex part and the fixing foot protrude out of the supporting surface, the fixing foot protrudes out of the surface of the first positioning convex part, the end part of the fixing foot, which is far away from the supporting surface, is of a petal-shaped structure, the insulation base is also provided with a threaded hole positioned on the fixing surface, a jack positioned at the bottom of the threaded hole and penetrating through the fixing foot, the supporting surface is supported at a notch of the mounting groove, the first positioning convex part is inserted into the mounting groove, the fixing foot is inserted into the limiting hole, and at least part of the petal-shaped structure extends out of the limiting hole;
the metal rotating sheet is provided with a positioning hole and is positioned on the fixing surface;
the fixing bolt penetrates through the positioning hole and is detachably screwed into the threaded hole, the first end of the fixing bolt is located in the insertion hole, and the petal-shaped structure of the fixing foot is enabled to be elastically expanded, so that the outer side wall of the petal-shaped structure is abutted to the hole opening edge of the limiting hole, and the second end of the fixing bolt limits the metal rotating sheet on the fixing surface.
In this embodiment, when fixing bolt screws at threaded hole, the cooperation of the petal form structure of accessible fixing bolt's first end and fixed foot makes petal form structure elastic expansion, realizes that the petal form structure is spacing at spacing hole's drill way border, and when screwing out fixing bolt, the petal form structure can restore to original form and be convenient for take out from spacing downthehole to realize insulating base detachable connection on fixed end plate, so not only improved insulating base's fixed efficiency on fixed end plate, can also be when follow-up insulating base connects inefficacy, dismantle insulating base and fixed end plate's connection, avoid causing the scrapping of fixed end plate.
According to an embodiment of the present application, the fixing bolt includes a bolt body and a limiting pin;
the first end of the bolt body penetrates through the second positioning hole and the first positioning hole and is detachably screwed in the threaded hole, and the second end of the bolt body limits the second end of the first metal switching piece and the second end of the second metal switching piece on the fixing surface;
the first end of the limiting pin is abutted with the first end of the bolt body, and the second end of the limiting pin is positioned in the insertion hole and promotes the petal-shaped structure of the fixed foot to elastically expand.
In this embodiment, to the condition of the first end butt of bolt body and spacer pin, when threaded hole precession or unscrew bolt body, can avoid spacer pin and the synchronous rotation of bolt body to reduce the resistance when assembling the bolt body, the assembly of bolt body of being convenient for.
According to an embodiment of the application, the side wall of the limiting pin is convexly provided with an annular limiting table, and the annular limiting table is located in the jack and is abutted with one end, close to the supporting surface, of the petal-shaped structure.
In this embodiment, when the locating pin is made to move to the holding surface direction of keeping away from insulating base through the bolt body, the butt of the one end that accessible annular spacing platform and petal form structure are close to the holding surface avoids the condition that the locating pin drops in from the jack to guarantee that the locating pin can effectively make the petal form structure elastic expansion of fixed foot.
According to an embodiment of the present application, a cross section of the inner cavity of the petal-shaped structure perpendicular to the height direction of the battery module is circular, and the cross section diameter of the inner cavity decreases and increases in a direction away from the supporting surface.
In this embodiment, when fixing bolt's first end stretches into the jack of fixed foot and continue to stretch into, accessible fixing bolt's first end makes the outside expansion of lobe form structure in the minimum cross-section department of lobe form structure's inner chamber, and then with spacing hole's butt, realizes insulating base fixed on fixed end plate.
According to an embodiment of the present application, the first end of the fixing bolt is a conical structure, and the smallest cross-sectional diameter of the inner cavity is smaller than the largest outer diameter of the conical structure.
In the embodiment of the application, the first end of the fixing bolt is in a conical structure, so that the first end of the fixing bolt can conveniently extend into the petal-shaped structure of the fixing foot, and the friction force between the first end of the fixing bolt and the inner wall of the petal-shaped structure can be reduced; in addition, the minimum section diameter of the inner cavity of the petal-shaped structure is smaller than the maximum outer diameter of the conical structure, so that after the first end of the fixing bolt stretches into the petal-shaped structure of the fixing foot, the petal-shaped structure can be promoted to expand outwards.
According to an embodiment of the present application, the fixing pin is located on a surface of the first positioning protrusion away from the supporting surface, and the threaded hole extends to the first positioning protrusion.
In this embodiment, to the condition that first location convex part is solid structure, the structure of the insulating base of being convenient for is simplified, and then the preparation of the insulating base of being convenient for.
According to an embodiment of the present application, the first positioning protrusion is of an annular structure, the insulating base further has a second positioning protrusion located in an area surrounded by the first positioning protrusion, the fixing leg is located on a surface of the second positioning protrusion away from the supporting surface, and the threaded hole extends to the second positioning protrusion.
In the embodiment of the application, in the case that the first positioning convex part is of the annular structure, the material of the insulating base can be reduced, the weight of the insulating base is reduced, and further the weight of the battery module is reduced; for the case of providing the second positioning convex portion, the depth of the screw hole may be increased, thereby facilitating an increase in the contact area of the fixing bolt with the inner wall of the screw hole. So as to improve the screwing degree of the fixing bolt in the threaded hole.
According to an embodiment of the application, a convex ring column surrounding the limiting hole is arranged at the bottom of the mounting groove, and the second positioning convex part is located in the convex ring column.
In this embodiment, through the cooperation of second location convex part and bulge loop post, be convenient for increase insulation base and fixed end plate between the mating area of grafting, and then guarantee insulation base and fixed end plate grafting complex stability.
According to an embodiment of the application, a part of the outer wall of the convex ring column is provided with a boss extending along the height direction of the battery module, and the inner wall of the first positioning convex part is provided with a sliding groove extending along the height direction of the battery module, and the boss is inserted into the sliding groove.
In the embodiment of the application, the matching area of the insertion connection between the insulating base and the fixed end plate is further increased through the matching of the boss and the chute, so that the limiting stability of the insulating base on the fixed end plate is increased; in addition, through the setting of boss, increased the stability of bulge loop post structure, avoided bulge loop post because the thinner condition that takes place to damage of wall thickness, prolonged insulating base's life.
According to an embodiment of the present application, an end surface edge of the fixing leg away from the supporting surface is designed as an arc chamfer.
In this embodiment, when the insulating base is assembled in the mounting groove on the fixed end plate, can realize the guiding effect of the relative spacing hole of fixed foot based on the circular arc chamfer design of the tip of fixed foot, the assembly of insulating base on the fixed end plate of being convenient for.
According to an aspect of the present application, there is provided an energy storage system comprising:
the battery box is provided with a containing cavity;
the battery module according to the above aspect, wherein the battery module is fixed in the accommodating cavity.
In this application embodiment, to including the energy storage system of above-mentioned aspect battery module, be convenient for improve energy storage system's packaging efficiency, and after insulating base connection inefficacy, only need dismantle and change insulating base and can accomplish battery module's maintenance, avoid causing the circumstances that energy storage system can't work for a long time.
According to an aspect of the present application, there is provided a powered device, where the powered device includes the energy storage system according to the above aspect, and the energy storage system supplies power to the powered device.
In this application embodiment, combine above-mentioned, in the use of consumer, can shorten the shut down time length that leads to the fact because of the maintenance of battery module, guarantee the work efficiency of consumer.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The above and other features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 is a schematic view illustrating a structure of a battery module according to an exemplary embodiment.
Fig. 2 is a schematic top view of an axial side explosion configuration showing an insulating base resting on a fixed end plate, according to an exemplary embodiment.
Fig. 3 is an enlarged schematic view of a partial area of the insulating base of fig. 2 resting on the fixed end plate.
Fig. 4 is a schematic view of a bottom-axis-side explosion configuration showing an insulating base resting on a fixed end plate, according to an exemplary embodiment.
Fig. 5 is a schematic view of a bottom axial side structure of an insulating base according to an exemplary embodiment.
Fig. 6 is a schematic cross-sectional structure of a fixing foot according to an exemplary embodiment.
Fig. 7 is a schematic cross-sectional structure of another fixing foot according to an exemplary embodiment.
Fig. 8 is a schematic diagram of an axial explosion configuration of a first metal adapter plate retained on an insulating base according to an exemplary embodiment.
Wherein reference numerals are as follows:
10. a battery module;
1. fixing the end plate; 2. a single battery; 3. an insulating base; 4. a first metal switching piece; 5. a fixing bolt; 6. a tie;
11. a mounting groove; 12. a limiting hole; 13. a convex ring column;
31. a support surface; 32. a fixing surface; 33. a first positioning protrusion; 34. a fixed foot; 35. a threaded hole; 36. a jack; 37. a baffle;
341. a petal-shaped structure; 342. an inner cavity;
51. a bolt body; 52. a limiting pin; 53. a conical structure;
521. an annular limiting table.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
The embodiment of the application provides an energy storage system which can be a battery pack, a battery box, a battery system and the like formed by single batteries. The single battery may be a lithium ion secondary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, etc., and may be a cylinder, a flat body, a cuboid, etc., which is not limited in the embodiment of the present application.
The energy storage system generally includes a case and a battery module fixed in the case. In addition, the energy storage system further comprises a battery management system, wherein the battery management system is limited in the box body and is electrically connected with the battery module. Therefore, in the working process of the energy storage system, the battery management system can monitor the electric parameters of the battery module in real time, and the working reliability and safety of the energy storage system are ensured.
The box body comprises a bottom plate, an upper cover and side plates, wherein the bottom plate, the upper cover and the side plates are fixedly connected to form a cavity, and the battery module is fixed in the cavity formed by the bottom plate, the upper cover and the side plates. In the case of an energy storage system comprising a battery module and a battery management system, the cavity is typically divided into a battery compartment and an electrical compartment, the battery module being located in the battery compartment and the battery management system being located in the electrical compartment.
The side plate is of a cylindrical structure with two open ends, and one opening of the side plate is of an integrated structure or fixedly connected with one of the bottom plate and the upper cover, and is fixedly connected with the other one. Illustratively, an open end of the side plate is integrally connected with the upper cover, the edge of the bottom plate is provided with a fence facing the upper cover, and the other end of the side plate is supported on the bottom plate in an opening manner and is fixedly connected with the fence.
The battery module that sets up in the box can be one, also can be a plurality of, and to a battery module, as shown in fig. 1, battery module 10 includes two fixed end plates 1 that set up relatively, and forms the accommodation position between two fixed end plates 1, and a plurality of battery cells 2 hold in this accommodation position.
Optionally, as shown in fig. 1, the battery module 10 further includes a tie 6, and the tie 6 is wound around the two fixing end plates 1 and the plurality of unit batteries 2 to achieve fixing of the plurality of unit batteries 2. The length of the binding belt 6 can be adjusted at will, so that the number of the single batteries 2 included in the battery module 10 can be adjusted conveniently, the electrical parameters of the battery module 10 can be adjusted, and the applicability of the energy storage system can be improved.
Wherein, fixed end plate 1 has the draw-in groove, and ribbon 6 is spacing in the draw-in groove to through the draw-in groove to the spacing of ribbon 6, avoid ribbon 6 to follow the condition of fixed end plate 1 slippage, guaranteed the stability of battery module 10 structure.
Optionally, the battery module 10 further includes a fixed side plate, where the two fixed side plates are disposed opposite to each other and distributed on two sides of the plurality of unit batteries 2, and each fixed side plate is fixedly connected with the two fixed end plates 1 respectively, so as to fix the plurality of unit batteries 2.
The length of the fixed side plate is adjustable, so as to adjust the number of the single batteries 2 included in the battery module 10, further adjust the electrical parameters of the battery module 10, and improve the applicability of the energy storage system. The fixed curb plate includes first baffle and second baffle, and the first end of first baffle, the first end of second baffle respectively with two fixed end plate 1 fixed connection, the second end of first baffle has the slotted hole that sets up along the length direction of first baffle, and the second end of second baffle has the fixed orifices, and the lock bolt passes fixed orifices and slotted hole, and can be at the optional position fixed connection first baffle and second baffle of slotted hole, so guarantee the length adjustable of fixed curb plate.
As shown in fig. 1, an insulating base 3 is disposed on the fixed end plate 1, so that the electrical connection between the output electrode aluminum bar (the first metal switching piece 4) and the output copper bar (the second metal switching piece (not shown)) of the battery module 10 is realized through the insulating base 3, and the electrical conduction between the single battery 2 and the fixed end plate 1 made of metal is avoided. In the related art, when the insulating base 3 is provided on the fixed end plate 1, the insulating base 3 is fixedly connected by welding. Thus, although the insulation base 3 is fixed on the fixed end plate 1, the insulation base 3 and the fixed end plate 1 are not detachable, and when the insulation base 3 is connected and fails, the whole fixed end plate 1 is scrapped, so that the resource waste is caused.
The embodiment of the application provides a battery module 10, is provided with detachable insulating base 3 on the fixed end plate 1 to simplify the fixed of insulating base 3 on fixed end plate 1, improve battery module 10's packaging efficiency, when insulating base 3 connects inefficacy simultaneously, can dismantle insulating base 3, avoid causing the scrapping of fixed end plate 1. So, to the energy storage system including this battery module 10, be convenient for improve energy storage system's packaging efficiency, and after insulating base 3 connection failure, only need dismantle and change insulating base 3 and can accomplish battery module 10's maintenance, avoid causing the circumstances that energy storage system can't work for a long time.
As shown in fig. 1, 2, 3 and 4, the battery module 10 includes: the battery module comprises fixed end plates 1, single batteries 2, an insulating base 3, metal switching pieces 4 and fixing bolts 5, wherein the two fixed end plates 1 are oppositely arranged, a containing position is formed between the two fixed end plates 1, the fixed end plates 1 form an installation groove 11 on the end face of the battery module 10 in the height direction, and a limiting hole 12 positioned at the bottom of the groove is formed in the installation groove 11; a plurality of unit cells 2 are accommodated in the accommodation site; the insulating base 3 has a supporting surface 31 and a fixing surface 32, and a first positioning protrusion 33 and a fixing foot 34 protruding from the supporting surface 31, the fixing foot 34 protrudes from the surface of the first positioning protrusion 33 away from the supporting surface 31, and the end of the fixing foot 34 away from the supporting surface 31 is a petal-shaped structure 341, the insulating base 3 also has a threaded hole 35 located on the fixing surface 32, and an insertion hole 36 (not shown in the figure) located at the bottom of the threaded hole 35 and penetrating the fixing foot 34, the supporting surface 31 is supported at the notch of the mounting groove 11, the first positioning protrusion 33 is inserted into the mounting groove 11, the fixing foot 34 is inserted into the limiting hole 12, and at least part of the petal-shaped structure 341 extends out of the limiting hole 12; the metal switching piece 4 is provided with a positioning hole and is positioned on the fixing surface 32; the fixing bolt 5 passes through the positioning hole and is detachably screwed in the threaded hole 35, the first end of the fixing bolt 5 is positioned in the insertion hole 36 and causes the petal-shaped structure 341 of the fixing foot 34 to elastically expand so that the outer side wall of the petal-shaped structure 341 is abutted with the limiting hole 12, and the second end of the fixing bolt 5 limits the metal rotating sheet 4 on the fixing surface 32.
In this embodiment, when fixing bolt 5 screws at screw hole 35, the cooperation of the lobe form structure 341 of accessible fixing bolt 5's first end and fixed foot 34, impel lobe form structure 341 elastic expansion, realize the drill way edge butt of lobe form structure 341 lateral wall and spacing hole 12, and when unscrewing fixing bolt 5, the lobe form structure 341 can restore the original form and be convenient for take out from spacing hole 12 of fixed foot 34, thereby realize insulating base 3 can dismantle on fixed end plate 1 and connect, so not only improved insulating base 3 fixed efficiency on fixed end plate 1, can also dismantle insulating base 3 and be connected of fixed end plate 1 when the inefficacy is connected to follow-up insulating base 3, avoid causing the scrapping of fixed end plate 1. In addition, because the insulating base 3 is detachably connected with the fixed end plate 1, and the metal switching piece 4 is detachably limited on the fixed surface 32 of the insulating base 3, so that the assembly tolerance required by the detachable mode is combined, the assembly tolerance of the metal switching piece 4 in the height direction of the battery module 10 is conveniently counteracted, the stability of the electrical connection of the metal switching piece 4 is ensured, and the electrical performance of the battery module 10 is further ensured.
The limiting hole 12 is a through hole, so that at least part of the petal-shaped structure 341 can extend out of the limiting hole 12, and the limiting hole 12 can be a cylindrical through hole, a prismatic through hole, a circular truncated cone through hole or the like, so long as the limiting hole can form a limit with the outer side wall of the petal-shaped structure 341 after the petal-shaped structure 341 expands. The outer side wall of the first positioning convex part 33 of the insulating base 3 is in clearance contact with the groove wall of the mounting groove 11, so that the stability of limiting the insulating base 3 and the fixed end plate 1 after the first positioning convex part 33 is inserted into the mounting groove 11 is ensured. Further, as shown in fig. 3, the insulating base 3 further has two baffles 37 located on the fixing surface 32, and the two baffles 37 are disposed opposite to each other in the width direction of the battery module 10. The electric climbing distance of the position of the metal switching piece 4 can be increased through the arrangement of the baffle 37, so that the safety of the electric connection of the metal switching piece is improved.
The metal switching pieces 4 may include a first metal switching piece and a second metal switching piece, where the first metal switching piece may be an output electrode switching piece (such as an output electrode aluminum bar) of the battery module 10, the second metal switching piece may be an output switching piece (such as an output copper bar) of the battery module 10, and the first metal switching piece may be located between the second metal switching piece and the fixing surface 32 of the insulating base 3, or the second metal switching piece may be located between the first metal switching piece and the fixing surface 32 of the insulating base 3.
Alternatively, as shown in fig. 5, the end edges of the fixing legs 34 facing away from the supporting surface 31 of the insulating base 3 are rounded. Therefore, when the insulating base 3 is assembled in the mounting groove 11 on the fixed end plate 1, the guiding function of the fixed pin 34 relative to the limiting hole 12 can be conveniently realized based on the arc chamfer design of the end part of the fixed pin 34, and the insulating base 3 is conveniently assembled on the fixed end plate 1.
In this embodiment, when the first end of the fixing bolt 5 urges the petal-shaped structure 341 of the fixing leg 34 to elastically expand in the insertion hole 36, as shown in fig. 6, the cross-sectional area of the inner cavity 342 of the petal-shaped structure 341 perpendicular to the height direction of the battery module 10 decreases in a direction away from the supporting surface 31, or as shown in fig. 7, the cross-sectional area of the inner cavity 342 of the petal-shaped structure 341 perpendicular to the height direction of the battery module 10 decreases and increases in a direction away from the supporting surface 31. In this way, the first end of the fixing bolt 5 can promote the outward expansion of the petal-shaped structure 341 at the minimum section of the inner cavity 342 of the petal-shaped structure 341, and further abuts against the orifice edge of the limiting hole 12, so that the insulating base 3 is fixed on the fixing end plate 1.
Taking a circular cross section of the inner cavity 342 of the petal-shaped structure 341 perpendicular to the height direction of the battery module 10 as an example, the cross section diameter of the inner cavity 342 decreases in a direction away from the supporting surface 31, or the cross section diameter of the inner cavity 342 decreases first and then increases in a direction away from the supporting surface 31.
Wherein, the lobe structure 341 of the fixing leg 34 includes a plurality of lobe teeth spaced apart along the circumference of the fixing leg 34, when the first end of the fixing bolt 5 extends into the lobe structure 341 of the fixing leg 34, the first end of the fixing bolt 5 causes the plurality of lobe teeth to expand radially outwards to abut against the orifice edge of the limiting hole 12 through the outer side wall of the lobe teeth.
While the first end of the fixing bolt 5 causes the lobe structure 341 of the fixing leg 34 to expand outwardly, the first end of the fixing bolt 5 may have a through-diameter structure, or, of course, may have a conical structure 53 as shown in fig. 3. Compared with the first end of the fixing bolt 5 having the through diameter structure, when the first end of the fixing bolt 5 has the conical structure 53, the first end of the fixing bolt 5 is convenient to extend into the petal-shaped structure 341 of the fixing leg 34, and friction between the first end of the fixing bolt 5 and the inner wall of the petal-shaped structure 341 can be reduced.
Wherein, for the first end of the fixing bolt 5 is a conical structure 53, in order to ensure that the first end of the fixing bolt 5 extends into the petal-shaped structure 341 along the insertion hole 36, the petal-shaped structure 341 can be promoted to expand outwards. Taking a circular cross section of the inner cavity 342 of the petal-shaped structure 341 perpendicular to the height direction of the battery module 10 as an example, the minimum cross-sectional diameter of the inner cavity 342 of the petal-shaped structure 341 is smaller than the maximum outer diameter of the conical structure 53.
For example, the conical structure 53 is provided with a maximum outer diameter D1, the lumen 342 of the petal-like structure 341 has a maximum cross-sectional diameter D2, and the lumen 342 has a minimum cross-sectional diameter D3, where D2 > D1, and D1 > D3. In this manner, it is ensured that the first end of the fixing bolt 5 can extend into the cavity of the petal 341 and cause the petal 341 to expand outwardly.
Further, D3 is more than or equal to 1/3D2 is more than or equal to 1/2D2, D2-D1 is more than or equal to 0.5mm and less than or equal to 1.5mm. Wherein, the relationship between the maximum cross-sectional diameter and the minimum cross-sectional diameter of the cavity 342 of the petal-shaped structure 341 is limited, so that the thicker wall thickness of the fixing leg 34 at the minimum cross-section is avoided, the expansion difficulty of the petal-shaped structure 341 is increased, and the situation that the thinner wall thickness of the fixing leg 34 at the minimum cross-section cannot be effectively abutted with the orifice edge of the insertion hole 36 after the petal-shaped structure 341 is expanded is avoided; in addition, the difference between the maximum outer diameter D1 of the conical structure 53 and the maximum cross-sectional diameter D2 of the interior cavity 342 of the lobed structure 341 is defined to ensure that the first end of the anchor bolt 5 is able to slide normally within the receptacle 36 while ensuring that the conical structure 53 of the first end of the anchor bolt 5 is able to effectively cause the lobed structure 341 to expand.
In the embodiment of the present application, as shown in fig. 8, the fixing bolt 5 includes a bolt body 51 and a stopper pin 52, and the bolt body 51 and the stopper pin 52 may be of an integral structure, or of course, may be of a split structure.
When the bolt body 51 and the limiting pin 52 are of an integrated structure, the assembly and the taking-out of the limiting pin 52 in the jack 36 can be realized along with the screwing-in or screwing-out of the bolt body 51 in the threaded hole 35, so that the insulation base 3 and the fixed end plate 1 can be detached, and the situation that the limiting pin 52 is taken out independently is avoided.
When the bolt body 51 and the limiting pin 52 are in a split structure, the bolt body 51 and the limiting pin 52 can be fixedly connected (such as welding, etc.) in advance, and then the assembly and the taking-out of the limiting pin 52 in the jack 36 can be realized along with the screwing-in or screwing-out of the bolt body 51 in the threaded hole 35, so that the insulation base 3 and the fixed end plate 1 can be detached, and meanwhile, the situation that the limiting pin 52 is independently taken out in the follow-up process is avoided. Of course, the stop pin 52 may be installed in the insertion hole 36 before the bolt body 51 is screwed into the threaded hole 35, and then the stop pin 52 is assembled in the insertion hole 36 by pressing the bolt body 51 against the stop pin 52, and when the bolt body 51 is screwed out of the threaded hole 35, the stop pin 52 may be removed from the insertion hole 36 under the reaction force of the petal-shaped structure 341 of the fixing leg 34 against the second end of the stop pin 52, so as to realize the detachment of the insulating base 3 and the fixing end plate 1.
Specifically, in the case where the fixing bolt 5 includes the bolt body 51 and the stopper pin 52, the first end of the bolt body 51 passes through the positioning hole of the metal switching piece 4 and is detachably screwed into the threaded hole 35, and the second end of the bolt body 51 restricts the metal switching piece 4 on the fixing surface 32; the first end of the limiting pin 52 abuts against the first end of the bolt body 51, and the second end of the limiting pin 52 is located in the insertion hole 36 and causes the petal-shaped structures 341 of the fixing legs 34 to elastically expand.
In this way, when the first end of the bolt body 51 abuts against the first end of the limiting pin 52 and the bolt body 51 is screwed into or out of the threaded hole 35, synchronous rotation of the limiting pin 52 and the bolt body 51 can be avoided, so that resistance when the bolt body 51 is assembled is reduced, and assembly of the bolt body 51 is facilitated.
The structure of the second end of the limiting pin 52 may refer to the structure of the first end of the fixing bolt 5, which is not limited in the embodiment of the present application. Illustratively, as shown in FIG. 8, the second end of the spacing pin 52 is a conical structure 53.
Alternatively, as shown in fig. 8, the side wall of the limiting pin 52 is convexly provided with an annular limiting platform 521, and the annular limiting platform 521 is located in the threaded hole 35 and is abutted with the bottom surface of the threaded hole 35, or the annular limiting platform 521 is located in the insertion hole 36 of the fixed leg 34 and is abutted with one end of the petal-shaped structure 341 close to the supporting surface 31. In this way, when the limiting pin 52 is driven to move towards the direction far away from the supporting surface 31 of the insulating base 3 by the bolt body 51, the annular limiting table 521 can be limited by the bottom surface of the threaded hole 35, or the annular limiting table 521 can be limited by one end of the petal-shaped structure 341 close to the supporting surface 31, so that the condition that the limiting pin 52 falls from the jack 36 is avoided, and the fact that the limiting pin 52 can effectively drive the petal-shaped structure 341 of the fixing foot 34 to elastically expand is ensured.
In this embodiment, for the fixing leg 34 protruding from the supporting surface 31 of the insulating base 3, the first positioning protruding portion 33 may be a solid structure, and the fixing leg 34 is located on a surface of the first positioning protruding portion 33 away from the supporting surface 31; the first positioning protrusion 33 may have an annular structure, and the insulating base 3 further has a second positioning protrusion located in an area surrounded by the first positioning protrusion 33, and the fixing leg 34 is located on a surface of the second positioning protrusion away from the supporting surface 31.
In this way, for the case that the first positioning convex part 33 is of a solid structure, the structure of the insulating base 3 is facilitated to be simplified, and the manufacturing of the insulating base 3 is facilitated; in the case where the first positioning protruding portion 33 has an annular structure, the material of the insulating base 3 can be reduced, the insulating base 3 can be reduced in weight, and the battery module 10 can be reduced in weight.
Wherein, in the case that the first positioning protrusion 33 is of a solid structure, the screw hole 35 located at the fixing surface 32 of the insulating base 3 may extend to the first positioning protrusion 33; in the case where the second positioning convex portion is provided in the area surrounded by the first positioning convex portion 33, the screw hole 35 located on the fixing surface 32 of the insulating base 3 may extend to the second positioning convex portion. Thus, the depth of the screw hole 35 can be increased, so that the screwing degree of the fixing bolt 5 in the screw hole 35 can be improved.
Alternatively, as shown in fig. 3, the groove bottom of the mounting groove 11 is provided with a collar post 13 surrounding the limiting hole 12, and a second positioning protrusion (not shown in the drawing) is located in the collar post 13. So, through the cooperation of second location convex part and bulge loop post 13, be convenient for increase insulating base 3 and fixed end plate 1 between the mating area of grafting, and then guarantee insulating base 3 and fixed end plate 1 grafting complex stability.
Alternatively, in the case where the groove bottom of the mounting groove 11 is provided with the collar post 13, a part of the outer wall of the collar post 13 has a boss extending in the height direction of the battery module 10, and the inner wall of the first positioning boss 33 has a slide groove extending in the height direction of the battery module 10, with the boss being inserted into the slide groove. Therefore, the matching area of the insulation base 3 and the fixed end plate 1 in an inserting way is further increased through the matching of the boss and the chute, and the limiting stability of the insulation base 3 on the fixed end plate 1 is increased; in addition, through the setting of boss, increased the stability of bulge loop post 13 structure, avoided bulge loop post 13 because the thinner condition that takes place to damage of wall thickness, prolonged insulating base 3's life.
Further, the boss extends to the groove wall of the mounting groove 11, and the slide groove on the first positioning boss 33 penetrates the annular wall of the first positioning boss 33. Thus, the boss is provided to extend to the groove wall of the mounting groove 11 to increase the size of the boss, thereby improving the stability of the sliding groove and boss fitting on the first positioning convex part 33 while further improving the stability of the structure of the convex ring column 13.
The groove walls of the convex ring column 13, the boss and the mounting groove 11 are of an integrated structure, so that the structural stability of the groove walls of the convex ring column 13, the boss and the mounting groove 11 is improved.
In this embodiment, in combination with the above-described case where the bolt body 51 and the limiting pin 52 included in the fixing bolt 5 are of a split structure, the second end of the limiting pin 52 is provided with the conical structure 53, when the metal adapter piece 4 is limited on the fixing surface 32 of the insulating base 3 by the bolt body 51, in order to ensure that the second end of the limiting pin 52 can be pressed into the petal-shaped structure of the fixing leg 34 by the bolt body 51 and cause the petal-shaped structure 341 to expand outwards, before the bolt body 51 is mounted, the length of the limiting pin 52 may be set such that the length of the first end of the limiting pin 52 protruding from the hole bottom of the threaded hole 35 is H1, the height of the conical structure 53 at the second end of the limiting pin 52 is H2, and the distance from the second end of the limiting pin 52 to the smallest section of the inner cavity 342 of the petal-shaped structure 341 is H3, and 0 < H1- (h2+h3) < H2.
Thus, when the bolt body 51 is assembled and the end of the bolt body 51 abuts against the hole bottom of the screw hole 35, the moving distance of the stopper pin 52 in the direction away from the insulating base 3 is H1, and the minimum moving distance by which the second end of the stopper pin 52 urges the flap structure 341 to expand is h2+h3. Thus, in the case where h2+h3 < H1, abutment of the conical structure 53 of the second end of the stopper pin 52 with the inner wall of the petal-like structure 341 is ensured to promote outward expansion of the petal-like structure 341; meanwhile, under the condition that H1- (H2 + H3) < H2, the conical structure 53 at the second end of the limiting pin 52 integrally extends out of the petal-shaped structure 341 of the fixed pin 34, so that the situation that the limiting pin 52 is separated from the insertion hole 36 of the fixed pin 34 is avoided, the petal-shaped structure 341 is kept in an outwards expanded state, and meanwhile, when the insulating base 3 is detached, after the bolt body 51 is taken out, the limiting pin 52 can move in a direction close to the supporting surface 31 of the insulating base 3 under the extrusion of the petal-shaped structure 341, and the limiting pin 52 is taken out.
The embodiment of the application also provides electric equipment which can be energy storage equipment, vehicles, energy storage containers and the like. The electric equipment comprises the energy storage system in the embodiment, and the energy storage system supplies power for the electric equipment. So, combine above-mentioned, the consumer of this application is in the use, can shorten the shut down time length that leads to the fact because of battery module 10 maintenance, guarantees the work efficiency of consumer.
In the present application embodiments, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined 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; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or units to be referred to must have a specific direction, be configured and operated in a specific azimuth, and thus should not be construed as limiting the embodiments of the present application.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and 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 implementations of the present application. In this specification, schematic representations of the above terms 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.
The above is merely a preferred example of the embodiments of the present application and is not intended to limit the embodiments of the present application, and various modifications and variations may be made to the embodiments of the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.
Claims (8)
1. A battery module (10), characterized by comprising:
the battery module comprises fixed end plates (1), wherein two fixed end plates (1) are oppositely arranged, a containing position is formed between the two fixed end plates (1), the fixed end plates (1) form an installation groove (11) on the end face of the battery module (10) in the height direction, and a limiting hole (12) positioned at the bottom of the groove is formed in the installation groove (11);
a plurality of single batteries (2) are accommodated in the accommodation position;
an insulating base (3) having a supporting surface (31) and a fixing surface (32), and a first positioning protrusion (33) and a fixing foot (34) protruding from the supporting surface (31), wherein the fixing foot (34) protrudes from the surface of the first positioning protrusion (33) away from the supporting surface (31), the end of the fixing foot (34) away from the supporting surface (31) is a petal-shaped structure (341), the cross section of an inner cavity (342) of the petal-shaped structure (341) perpendicular to the height direction of the battery module (10) is circular, the area of the cross section is gradually decreased and then gradually increased in the direction away from the supporting surface (31), the insulating base (3) is further provided with a threaded hole (35) positioned on the fixing surface (32), and an insertion hole (36) positioned at the bottom of the threaded hole (35) and penetrating through the fixing foot (34), the supporting surface (31) is supported at the notch of the mounting groove (11), the first positioning protrusion (33) is in the mounting groove (11), and the area of the cross section is gradually increased in the direction away from the supporting surface (31), and the insertion hole (34) is at least limited by the insertion hole (12);
a metal switching piece (4) provided with a positioning hole and positioned on the fixing surface (32);
the fixing bolt (5) comprises a bolt body (51) and a limiting pin (52) which are of a split type structure;
the first end of the bolt body (51) penetrates through the positioning hole and is detachably screwed in the threaded hole (35), and the second end of the bolt body (51) limits the metal rotating sheet (4) on the fixing surface (32);
the first end of the limiting pin (52) is abutted with the first end of the bolt body (51), the second end of the limiting pin (52) is of a conical structure (53), the minimum cross-section diameter of an inner cavity (342) of the petal-shaped structure (341) is smaller than the maximum outer diameter of the conical structure (53), the second end of the limiting pin (52) is positioned in the inserting hole (36) and promotes the petal-shaped structure (341) of the fixed foot (34) to elastically expand, so that the outer side wall of the petal-shaped structure (341) is abutted with the orifice edge of the limiting hole (12), and the limiting pin (52) has a tendency to exit the inserting hole (36) under the reactive force of the petal-shaped structure (341);
an annular limiting table (521) is convexly arranged on the side wall of the limiting pin (52), and the annular limiting table (521) is positioned in the jack (36) and is abutted against one end, close to the supporting surface (31), of the petal-shaped structure (341);
before the bolt body (51) is installed, the first end of the limiting pin (52) protrudes out of the hole bottom of the threaded hole (35) to form H1, the height of the conical structure (53) is H2, the distance from the second end of the limiting pin (52) to the smallest section of the inner cavity (342) of the petal-shaped structure (341) is H3, and H1- (H2 + H3) is more than 0 and less than H2.
2. The battery module (10) according to claim 1, wherein the fixing leg (34) is located at a surface of the first positioning boss (33) remote from the support surface (31), and the screw hole (35) extends to the first positioning boss (33).
3. The battery module (10) according to claim 1, wherein the first positioning protrusion (33) is of an annular structure, the insulating base (3) further has a second positioning protrusion located in an area surrounded by the first positioning protrusion (33), the fixing leg (34) is located on a surface of the second positioning protrusion remote from the supporting surface (31), and the screw hole (35) extends to the second positioning protrusion.
4. A battery module (10) according to claim 3, wherein the bottom of the mounting groove (11) is provided with a collar post (13) surrounding the limiting hole (12), and the second positioning protrusion is located in the collar post (13).
5. The battery module (10) according to claim 4, wherein a part of the outer wall of the collar post (13) has a boss extending in the height direction of the battery module (10), and the inner wall of the first positioning protrusion (33) has a slide groove extending in the height direction of the battery module (10), the boss being inserted into the slide groove.
6. The battery module (10) according to claim 1, wherein the end edges of the fixing legs (34) remote from the support surface (31) are rounded.
7. An energy storage system, comprising:
the battery box is provided with a containing cavity;
the battery module (10) according to any one of claims 1 to 6, wherein the battery module (10) is fixed in the accommodation chamber.
8. A powered device comprising the energy storage system of claim 7, the energy storage system powering the powered device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311060071.6A CN116799418B (en) | 2023-08-22 | 2023-08-22 | Battery module, energy storage system and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311060071.6A CN116799418B (en) | 2023-08-22 | 2023-08-22 | Battery module, energy storage system and electric equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116799418A CN116799418A (en) | 2023-09-22 |
| CN116799418B true CN116799418B (en) | 2024-01-23 |
Family
ID=88039917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311060071.6A Active CN116799418B (en) | 2023-08-22 | 2023-08-22 | Battery module, energy storage system and electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116799418B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017191755A (en) * | 2016-04-15 | 2017-10-19 | 株式会社豊田自動織機 | Battery pack and battery pack assembling method |
| CN112909401A (en) * | 2021-01-19 | 2021-06-04 | 孚能科技(赣州)股份有限公司 | Battery module and battery pack |
| CN215680885U (en) * | 2021-08-26 | 2022-01-28 | 中航锂电科技有限公司 | Output pole protection support and battery pack |
| CN218215523U (en) * | 2022-08-03 | 2023-01-03 | 威睿电动汽车技术(宁波)有限公司 | Insulation protection structure, battery pack and energy storage battery box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749774B2 (en) * | 2005-06-16 | 2011-08-17 | 本田技研工業株式会社 | Assembled battery |
| KR102392571B1 (en) * | 2019-01-25 | 2022-04-28 | 주식회사 엘지에너지솔루션 | Bolting Device for Manufacturing Battery Pack |
-
2023
- 2023-08-22 CN CN202311060071.6A patent/CN116799418B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017191755A (en) * | 2016-04-15 | 2017-10-19 | 株式会社豊田自動織機 | Battery pack and battery pack assembling method |
| CN112909401A (en) * | 2021-01-19 | 2021-06-04 | 孚能科技(赣州)股份有限公司 | Battery module and battery pack |
| CN215680885U (en) * | 2021-08-26 | 2022-01-28 | 中航锂电科技有限公司 | Output pole protection support and battery pack |
| CN218215523U (en) * | 2022-08-03 | 2023-01-03 | 威睿电动汽车技术(宁波)有限公司 | Insulation protection structure, battery pack and energy storage battery box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116799418A (en) | 2023-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111933833B (en) | End cover assembly, battery monomer, battery and power consumption device | |
| US11909066B1 (en) | Battery end cover assembly, energy storage apparatus and electric device | |
| EP4131635A1 (en) | Sealing assembly for sealing through hole, and method and device for preparing cell | |
| CN111490192B (en) | Sleeve assembly, cover plate assembly, battery and power utilization device | |
| US20110123845A1 (en) | Battery pack, vehicle equipped with the battery pack, and device equipped with the battery pack | |
| JP2016096080A (en) | Storage battery unit and power storage device | |
| CN116799418B (en) | Battery module, energy storage system and electric equipment | |
| CN116799419B (en) | Battery module, energy storage system and electric equipment | |
| WO2016076427A1 (en) | Storage battery unit and power storage device | |
| EP4366061A1 (en) | Screw, connecting structure, battery and electric device | |
| CN116780065A (en) | End cover assembly, energy storage device and electric equipment | |
| EP4243135A1 (en) | Winding needle sleeve, battery cell, battery, power consuming device and winding device | |
| WO2016076420A1 (en) | Storage battery unit and power storage device | |
| CN116799417B (en) | Battery module, energy storage system and electric equipment | |
| JP3511509B2 (en) | Cell module structure and cell connection members | |
| CN216648493U (en) | Electric equipment, battery and battery box thereof | |
| CN220821676U (en) | Cylindrical cell, battery pack and electronic equipment | |
| CN220302521U (en) | Press riveting bolt, connecting assembly, battery and electric equipment | |
| CN219658859U (en) | Battery box, battery and power consumption device | |
| CN217761623U (en) | Self-plugging rivet and rivet pulling device | |
| CN220929904U (en) | Rivet nut, battery box, battery and power utilization device | |
| CN217281090U (en) | Fastener, battery and consumer | |
| CN220553539U (en) | Battery module and electricity utilization device | |
| CN117080640B (en) | End cover assembly, energy storage device and electric equipment | |
| WO2024010415A9 (en) | Battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Research and Development Building 501, No. 6 Lanqing Second Road, Luhu Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, China Patentee after: Shenzhen Haichen Energy Storage Technology Co.,Ltd. Country or region after: China Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: Room 501, R&D Building, No. 2 Sany Yundu, No. 6 Lanqing Second Road, Luhu Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, 518110 Patentee before: Shenzhen Haichen Energy Storage Control Technology Co.,Ltd. Country or region before: China Patentee before: Xiamen Haichen Energy Storage Technology Co.,Ltd. |