WO2021027289A1 - 电池组 - Google Patents

电池组 Download PDF

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Publication number
WO2021027289A1
WO2021027289A1 PCT/CN2020/081495 CN2020081495W WO2021027289A1 WO 2021027289 A1 WO2021027289 A1 WO 2021027289A1 CN 2020081495 W CN2020081495 W CN 2020081495W WO 2021027289 A1 WO2021027289 A1 WO 2021027289A1
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WO
WIPO (PCT)
Prior art keywords
bracket
groove
battery pack
fixing
hole
Prior art date
Application number
PCT/CN2020/081495
Other languages
English (en)
French (fr)
Inventor
阮晓行
李长江
Original Assignee
东莞新能源科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201921297161.6U external-priority patent/CN210668458U/zh
Priority claimed from CN201910736477.9A external-priority patent/CN112350018A/zh
Application filed by 东莞新能源科技有限公司 filed Critical 东莞新能源科技有限公司
Priority to EP20851848.0A priority Critical patent/EP3846279A4/en
Publication of WO2021027289A1 publication Critical patent/WO2021027289A1/zh

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  • This application relates to battery packs.
  • the bracket used to fix the battery management system (BMS, BATTERY MANAGEMENT SYSTEM) module usually needs to avoid the wiring harness installation in the battery pack, and is affected by the installation space limitation and wiring harness wiring, the bracket generally requires reliable fixation in a small installation space To avoid affecting the performance of the BMS module. Screws are usually used to fix the bracket on the casing or on the end plates on both sides of the battery pack.
  • the shell needs to be provided with screw holes, which causes the waterproof and dustproof performance of the shell to decrease;
  • the bracket is fixed on the end plates on both sides of the battery pack, when the distance between the end plates on both sides increases, The manufacturing cost and fixing difficulty of the bracket are increased, and it takes up a lot of space, which increases the complexity of wiring harness wiring.
  • An embodiment of the present application provides a battery pack, including a first bracket, the battery pack further includes a second bracket for fixing a battery management system module, the second bracket is fixed on the first bracket and arranged There is a first groove.
  • the battery pack includes an adapter plate connected to the battery cell, the first bracket is arranged on one side of the adapter plate, and the second bracket is arranged on the adapter plate. The other side.
  • the first bracket is provided with a first through hole
  • the second bracket is provided with a plurality of mounting parts
  • the mounting part is provided with a second through hole
  • the adapter plate is provided with a third through hole
  • the battery pack further includes a bolt that passes through the first through hole and the second through hole and is connected to the third through hole to fix the second bracket and the adapter plate And the first bracket.
  • the first groove is provided with a plurality of fixing parts at intervals.
  • the fixing portion includes a deformed portion provided on a side wall of the first groove, and a clamping portion provided on one end of the deformed portion.
  • the fixing portion includes two deformed portions provided with a side wall of the first groove, and the two deformed portions are respectively provided with a clamping portion opposite to each other.
  • the fixing parts on different side walls are symmetrically arranged.
  • the clamping portion of at least one of the fixing portions is farther away from the bottom wall of the first groove than the other clamping portions.
  • one end of the first groove is wider than the other end.
  • the second bracket further includes a plurality of embedded or hot-melted nuts.
  • the second bracket is further provided with a second groove, the nut is received in the second groove, and the bottom wall of the second groove is lower than the nut and faces away from the nut. The end face on one side of the first bracket.
  • the battery pack includes a wire harness, and the wire harness is received in the first groove.
  • a first groove is provided on the second bracket to fix the wire harness or other components in the first groove, thereby improving the utilization rate of the limited space in the battery pack.
  • Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application when the casing is disassembled.
  • Fig. 2 is another structural diagram of the battery pack when the casing is disassembled.
  • FIG. 3 is a schematic diagram of the structure of the battery pack in FIG. 1 when the casing is removed.
  • FIG. 4 is a schematic diagram of the structure of the second bracket of the battery pack in FIG. 1.
  • Fig. 5 is a schematic view of the X-direction structure of the second bracket in Fig. 4.
  • Fig. 6 is a schematic structural view of the second bracket in Fig. 4 from another angle.
  • Fig. 7 is a schematic cross-sectional view of the second bracket in Fig. 6 along the line A-A.
  • Fig. 8 is a schematic cross-sectional view of the second bracket in Fig. 6 along the line B-B.
  • FIG. 9 is a schematic diagram of the structure of the battery in FIG. 1 with the second bracket removed.
  • FIG. 10 is a schematic diagram of the battery module structure of the battery shown in FIG. 9.
  • FIG. 11 is a schematic diagram of an exploded structure of the battery module shown in FIG. 10.
  • Fig. 12 is an enlarged view of part III in Fig. 10.
  • Fig. 13 is an enlarged view of part IV in Fig. 10.
  • FIG. 14 is a schematic diagram of the structure of the battery module installed in the casing.
  • Fig. 15 is a front view of the battery module of Fig. 14 installed in the casing.
  • Fig. 16 is an enlarged view of part VIII in Fig. 15.
  • Fig. 17 is an enlarged view of part IX in Fig. 15.
  • FIG. 18 is a schematic diagram of the structure of the first end plate of the battery module of FIG. 10.
  • 19 is a schematic diagram of the structure of the second end plate of the battery module of FIG. 10.
  • the first component 111 The first component 111
  • the third positioning department 123 The third positioning department 123
  • the first installation department 211 The first installation department 211
  • the second installation department 221 The second installation department 221
  • the first convex part 2411 is the first convex part 2411
  • the second fixed department 242 The second fixed department 242
  • the battery pack 100 includes a first support 25 and a second support 4.
  • the second bracket 4 is used to support and fix a battery management system (BMS, BATTERY MANAGEMENT SYSTEM) module (not shown).
  • BMS battery management system
  • BATTERY MANAGEMENT SYSTEM BATTERY MANAGEMENT SYSTEM
  • the second bracket 4 is fixed on the first bracket 25.
  • the second bracket 4 is provided with a first groove 42.
  • the first groove 42 is used for routing the wiring harness 5 in the battery pack 100, but it is not limited thereto.
  • the first groove 42 fixes the wire harness 5 and allows the wire harness 5 to pass. It can be understood that, in other embodiments, other connecting electronic components or other components such as a flat cable or a flexible circuit board may also be fixed in the first groove 42.
  • the battery pack 100 further includes a casing 1 and a battery module 2 and an adapter plate 3 arranged in the casing 1.
  • the housing 1 includes a first housing 11 and a second housing 12.
  • the second housing 12 is substantially a hollow structure with two ends open, and the first housing 11 encapsulates one side of the second housing 12.
  • the battery module 2 is housed in the inner cavity of the second casing 12.
  • the battery module 2 includes a plurality of the first brackets 25 and a plurality of battery cells 20 arranged in sequence.
  • the first bracket 25 is used to fix the battery core 20.
  • the adapter board 3 is arranged on one side of the plurality of first brackets 25 and is used to electrically connect the plurality of batteries 20.
  • the second bracket 4 is connected to a part of the first bracket 25 and is located on a side of the adapter plate 3 away from the plurality of first brackets 25.
  • the wire harness 5 is a total positive line, but it is not limited thereto.
  • the output terminal 51 of the wire harness 5 is connected to a connector 7.
  • the connector 7 is fixed on the first housing 11.
  • the other end of the wire harness 5 opposite to the output terminal 51 is connected to an electrode 6.
  • the electrode 6 is provided on the adapter board 3, but it is not limited thereto. It is understandable that the electrode 6 may also be arranged in other positions in the battery pack 100.
  • the second bracket 4 includes a bracket body 41 and a plurality of mounting portions 43 disposed on the bracket body 41.
  • the number of the mounting portions 43 is four, and two of the four mounting portions 43 are placed on opposite sides of the bracket body 41 as a group, but it is not limited thereto.
  • the first bracket 25 defines a first through hole 251.
  • the mounting portion 43 defines a second through hole 431.
  • the adapter plate 3 defines a third through hole 31.
  • the battery pack 100 further includes a bolt 44. The bolt 44 sequentially passes through the second through hole 431 and the third through hole 31 and is connected to the first through hole 251.
  • the first through hole 251 has a threaded hole, and the bolt 44 is matched and fixed with the threaded hole, but it is not limited to this, and the bolt 44 may also be other fixing parts.
  • One end of the bolt 44 is pressed on the mounting portion 43, and the mounting portion 43 is pressed against the adapter plate 3 on the first bracket 25, so that the adapter plate 3 is fixed on the mounting portion 43.
  • the mounting portion 43 is provided with a supporting portion 433 protruding from the bracket body 41 on one side of the first bracket 25.
  • the supporting portion 433 is attached to the adapter plate 3.
  • the mounting portion 43 is provided with two rib portions 435 located on both sides of the second through hole 431.
  • the rib portion 435 is connected to the bracket body 41.
  • the rib portion 435 is used to improve the strength of the mounting portion 43. It can be understood that, in other embodiments, the rib portion 435 may also be omitted.
  • the number of the mounting portions 43 may also be two or other numbers.
  • a plurality of the mounting parts 43 may also be provided on the same side of the bracket body 41.
  • the second bracket 4 further includes a plurality of nuts 45.
  • the number of the nuts 45 is four, but it is not limited thereto.
  • the four nuts are arranged around the bracket body 41 and are used to connect the battery management system module.
  • the second bracket 4 is provided with a second groove 46 and a second groove 46a.
  • the second groove 46 and the second groove 46a are disposed on the bracket body 41 and are respectively located on two sides of the first groove 42, but are not limited thereto.
  • Two of the nuts 45 are received in the second groove 46 and are located at the two top corners of the second groove 46 away from the first groove 42; the other two nuts 45 are received in the
  • the second groove 46a is located at the two top corners of the second groove 46a away from the first groove 42.
  • the bottom wall 461 of the second groove 46 and the bottom wall 461a of the second groove 46a are lower than the end surface of the nut 45 facing away from the adapter plate 3, so that the second groove 46 and The second groove 46a can accommodate components on the battery management system module.
  • the side wall 463 of the second groove 46 and the side wall 463 a of the second groove 46 a improve the strength of the bracket body 41. It can be understood that, in other embodiments, the side wall 463 of the second groove 46 and the side wall 463a of the second groove 46a may also be omitted.
  • the first groove 42 penetrates through both sides of the bracket body 41.
  • the first groove 42 includes opposite side walls 421 and side walls 423.
  • the side wall 421 partially overlaps the side wall 463 of the second groove 46; the side wall 423 partially overlaps the side wall 463a of the second groove 46a.
  • One end of the first groove 42 is wider than the other end.
  • the side wall 421 is substantially parallel to the side wall 423.
  • the side wall 421 is bent and extended toward the side away from the side wall 423, so that the side wall 421 and the side
  • the spacing of the walls 423 gradually becomes larger.
  • the distance w between the parallel sections of the side wall 421 and the side wall 423 satisfies: d+2mm ⁇ w ⁇ d+3mm, where d is the diameter of the wire harness 5.
  • the second groove 46 and the second groove 46a may also be combined into one groove and located on one side of the first groove 42.
  • the second groove 46 and/or the second groove 46a may also be divided into a plurality of grooves.
  • the second bracket 4 is a shell structure using injection molding, and the nut 45 is embedded in the second bracket 4.
  • the material for making the second bracket 4 includes PPO and PC+ABS, but it is not limited thereto.
  • the second bracket 4 may also be made of other materials.
  • the second bracket 4 is made of nylon material and is formed by machining.
  • the nut 45 can also be embedded in the bracket body 41 by heat melting or ultrasonic waves.
  • the first groove 42 is provided with a plurality of fixing portions 47 at intervals.
  • the fixing portion 47 is used for clamping the wire harness 5 in the first groove 42.
  • the number of the fixing portions 47 is set according to the length of the first groove 42.
  • the distance between the adjacent fixing portions 47 ranges from 35 mm to 45 mm.
  • the fixing portion 47 includes two deforming portions 471.
  • the two deformed portions 471 are respectively disposed on the side wall 421 and the side wall 423 of the first groove 42.
  • the fixing portions 47 on different side walls of the first groove 42 are symmetrically arranged.
  • the deformed portion 471 is formed on the side wall 421 or the side wall 423.
  • the end of the deformed portion 471 facing the adapter plate 3 is disposed on the side wall 421 or the side wall 432, and both sides of the deformed portion 471 are separated from the side wall 421 or the side wall 432, respectively. Open to be able to elastically deform.
  • the two deformed portions 471 are respectively provided with a clamping portion 473 facing each other, and the two clamping portions 473 are arranged symmetrically.
  • the two holding parts 473 are separated by a set distance, but not limited to this.
  • the clamping portion 473 is pressed by the wire harness 5 to enable the two deformed portions 471 to be relatively expanded, so as to allow the wire harness 5 to enter the first groove 42 through the two clamping portions 473.
  • the two deformed parts 471 are reset and the two clamping parts 473 abut the wire harness 5 so that the wire harness 5 is received in the first groove 42.
  • the fixing portion 47 may also include a deformable portion 471 and a clamping portion 473.
  • One deformation portion 471 is provided on one of the side walls of the first groove 42, and the clamping portion 473 is provided on one end of the deformation portion 471 and faces the other side of the first groove 42.
  • the side wall extends to be able to stop the wire harness 5 in the first groove 42.
  • the distance h1 between the holding portion 473 and the bottom wall 425 of the first groove 42 satisfies: d+2mm ⁇ h1 ⁇ d+3mm, where d is the distance of the wire harness 5 diameter.
  • the first groove 42 is further provided with a fixing portion 47a.
  • the fixing portion 47a is used for clamping the wire harness 5 in the first groove 42.
  • the fixing portion 47 a is located on one side of the plurality of fixing portions 47.
  • the structure of the fixing portion 47a is substantially the same as that of the fixing portion 47, and the fixing portion 47a includes two deforming portions 471 and two clamping portions 473a. Two deformed portions 471a are respectively disposed on the side wall 421 and the side wall 423 of the first groove 42, and the two deformed portions 471a are respectively disposed on the two deformed portions 471a opposite to each other.
  • the difference between the fixing portion 47a and the fixing portion 47 is that the distance h2 between the clamping portion 473a of the fixing portion 47a and the bottom wall 425 of the first groove 42 satisfies: h2>h1.
  • the two clamping portions 473 of the fixing portion 47 may also be attached or partially overlapped, as long as the distance between the two deformed portions 471 elastically deformed and relatively opened is sufficient to allow The wire harness 5 only needs to pass through the two clamping portions 473 and enter the first groove 42.
  • the number of the fixing portions 47a may also be two or other numbers, and the heights of the fixing portions 47a are gradually increased to allow the output end 51 of the wire harness 5 to be evenly bent. fold.
  • the fixing portion 47a may also be omitted.
  • the second bracket 4 further includes a plurality of strap buckles 48.
  • a plurality of the cable tie buckles 48 are respectively arranged on both sides of the bracket body 41 and used to limit other wire harnesses in the battery pack 100 except for the wire harness 5.
  • the battery pack 100 further includes an end plate, a fixing band 23 and a fixing member 24.
  • the end plate includes a first end plate 21 and a second end plate 22, which are respectively arranged on both ends of the battery module 2.
  • the fixing belt 23 is sleeved on the battery module 2 and fixes the first end plate 21 and the second end plate 22.
  • the housing 1 is also provided with a positioning member, and the fixing member 24 is provided on the battery module 2. When the battery module 2 is installed in the casing 1, the fixing member 24 cooperates with a positioning member in the casing 1 to restrict the movement of the battery module 2.
  • a plurality of the electric cores 20 are stacked together, and each of the electric cores 20 is housed in the first bracket 25.
  • the battery core 20 is substantially rectangular, and the size of the first bracket 25 matches the size of the battery core 20.
  • the first bracket 25 is approximately a hollow rectangular frame, and the first bracket 25 is fixed on the peripheral side of the battery core 20.
  • the fixing band 23 is sleeved on the outer side of the plurality of first supports 25 in a direction parallel to the stacking direction of the battery cores 20, thereby fixing the plurality of battery cores 20 together and preventing the plurality of battery cores 20 from loosening. Take off.
  • the first end plate 21 and the second end plate 22 are respectively arranged on the end faces of the two outermost cells 20 of the battery module 2.
  • the first end plate 21 and the second end plate 22 are also fixed in the fixing belt 23, and the fixing belt 23
  • the plurality of cells 20 are pressed together under the action of the tension force of, and the plurality of cells 20 are further fixed.
  • the adapter plate 3 is fixedly arranged on the short side of the first bracket 25.
  • the end of the long side of the first bracket 25 is also provided with an anti-dropping member 28, and the anti-dropping member 28 is substantially an elastic sheet.
  • the anti-dropping member 28 and the first bracket 25 are integrally formed. After the fixing belt 23 is sleeved on the plurality of first brackets 25, the fixing belt 23 is pushed toward the anti-dropping member 28, so that the fixing belt 23 is partially inserted into the outer side of the first bracket 25 and Between the inner sides of the anti-dropping member 28, the anti-dropping member 28 restricts the movement of the fixing belt 23, thereby preventing the fixing belt 23 from falling off from the end of the first bracket 25.
  • a spacer 26 is also provided between any adjacent cells 20 to provide expansion space for the cell 20 to expand. Specifically, in this embodiment, the spacer 26 is foam. When the cell expands, the spacer 26 can be compressed .
  • a spacer 26 is also provided between the first end plate 21 and the battery core 20 and the second end plate 22 and the battery core 20.
  • the housing 1 further includes a third housing 13.
  • the third housing 13 is disposed at an end of the second housing 12 facing away from the first housing 11 and encapsulates the second housing 12 with the first housing 11.
  • the first housing 11 and the third housing 13 serve as end caps of the second housing 12.
  • a buffer 27 is provided between the first end plate 21 and the first housing 11 and is arranged in the second housing 12, and the second end plate 22 is between the third housing 13
  • a buffer 27 is also provided in the space to buffer the vibration of the battery module 2 in the housing 1.
  • the buffer member 27 is made of an elastic material, preferably a rubber pad. In other embodiments, the buffer member 27 may also be a flexible material such as foam, silicone foam, sponge, etc., which is not limited in this application.
  • the buffer member 27 is adhered to the surface of the first end plate 21 and the second end plate 22 away from the battery module 2. It can be understood that in other embodiments, the The buffer member 27 can also be fixed on the surfaces of the first housing 11 and the second housing 12 facing the battery module 2.
  • the fixing member 24 includes a first fixing portion 241 and a second fixing portion 242, and the first fixing portion 241 and the second fixing portion 242 are disposed on the side of the battery module 2.
  • the first fixing portion 241 and the second fixing portion 242 are spaced apart.
  • the direction indicated by the arrow in FIG. 14 is the housing entry direction Y of the battery module 2 into the second housing 12.
  • two sets of the first fixing parts 241 are symmetrically arranged on both sides of the battery module 2
  • two sets of the second fixing parts 242 are also arranged symmetrically on both sides of the battery module 2.
  • the first fixing portion 241 and the second fixing portion 242 may each have a set and are arranged on different sides of the battery module 2.
  • the positioning member is disposed on the inner side wall of the second housing 12, and the positioning member includes a first positioning portion 121 and a second positioning portion 122.
  • the position of the first positioning portion 121 is the same as that of the first fixing portion.
  • the portion 241 corresponds, and the position of the second positioning portion 122 corresponds to the second fixing portion 242.
  • the fixing member 24 is disposed on the long side of the first bracket 25, and the first fixing portion 241 and the second fixing portion 242 are disposed on the The first bracket 25 is on the same side.
  • the first fixing portion 241 is arranged close to the adapter plate 3, and the second fixing portion 242 is arranged on an end of the long side of the first bracket 25 away from the adapter plate 3.
  • the cross-section of the first fixing portion 241 is approximately "U"-shaped, which includes a first convex portion 2411, a second convex portion 2412, and a base 2413. And respectively protrude outward from both ends of the base 2413.
  • the first positioning portion 121 is disposed between the first convex portion 2411 and the second convex portion 2412 and cooperates with the first fixing portion 241.
  • the side of the second convex portion 2412 facing the first convex portion 2411 is a first fixing surface 2414.
  • the first fixing surface 2414 supports the first positioning portion 121, that is, the first positioning portion 121 abuts against it.
  • the first fixing surface 2414 is held to limit the movement of the battery module 2 in a first direction.
  • the first direction refers to the direction shown by the Z axis in FIG. 9.
  • the side wall of the second housing 12 has an inclined surface and a vertical surface, the inclined surface is close to the top surface of the second housing 12, the first fixing portion 241 and the first positioning portion 121 is approximately located at the intersection of the inclined surface and the vertical surface, the first convex portion 2411 is located above the second convex portion 2412, in order to ensure that the battery module 2 can be smoothly inserted into the second In the housing 12, the length of the first convex portion 2411 is smaller than the length of the second convex portion 2412. It can be understood that in other embodiments, the length of the first convex portion 2411 may be the same as the length of the second convex portion 2412, which is determined according to the actual shape of the housing 1, which is not limited in this application.
  • the cross section of the second fixing portion 242 is substantially rectangular, the side of the second fixing portion 242 facing away from the first fixing portion 241 is a second fixing surface 2421, and the second positioning portion 122 supports or resists
  • the second fixing surface 2421 restricts the movement of the battery module 2 in the second direction, that is, restricts the battery module 2 from moving downward in the viewing angle of FIG. 14.
  • the second direction is opposite to the Z axis direction in FIG. 9. It can be understood that the second convex portion 2412 of the first fixing portion 241 and the second fixing portion 242 are disposed between the first positioning portion 121 and the second positioning portion 122, thereby restricting the battery mold.
  • the group 2 moves up and down in the second housing 12.
  • both sides of the battery module 2 are provided with fixing members 24, the two symmetrical inner side walls of the second housing 12 are also provided with positioning members corresponding to the fixing members 24, thereby effectively reducing Mechanical damage to the battery module 2 caused by external vibration and impact improves the safety of the battery module 2 in use.
  • the fixing member 24 cooperates with the positioning member in the second housing 12 to limit the circumferential movement of the battery module 2 and at the same time guide the insertion direction of the battery module 2.
  • the lengths of the first fixing portion 241 and the second fixing portion 242 are the same as the side width of the single first bracket 25, and the plurality of first fixing portions 241 and the plurality of The second fixing portions 242 are respectively spliced along with the stacking of a plurality of cells 20 to form the fixing member 24. It can be understood that, in other embodiments, the lengths of the first fixing portion 241 and the second fixing portion 242 may be the same as the length of the battery module 2, and a single first fixing portion 241 and a single The second fixing portion 242 can be connected and fixed to the sides of the plurality of first brackets 25 at the same time.
  • the first bracket 25 is further provided with a protrusion 252, and the protrusion 252 is only provided on one side of the first bracket 25.
  • the battery module 2 includes a plurality of stacked battery cells 20 and a first bracket 25, the battery cells 20 are arranged in the first bracket 25, and the protrusion 252 is used to avoid the first bracket 25 25 is installed backwards during stacking installation, and is also used to prevent the installed battery module 2 and the adapter plate 3 from being welded backwards during welding.
  • the first mounting portion 211 is provided on both sides of the first end plate 21, and the first mounting portion 211 is provided on both sides of the second end plate 22. Similar to the second mounting part 221.
  • the first mounting portion 211 and the second mounting portion 221 are substantially perpendicular to the end surfaces of the first end plate 21 and the second end plate 22.
  • Both the first mounting portion 211 and the second mounting portion 221 are provided with an end plate nut 29, and a fourth through hole corresponding to the end plate nut 29 is opened on the side wall of the second housing 12 124.
  • the end plate nut 29 is preferably a blind hole nut.
  • Fasteners such as bolts and screws that are matched with the end plate nut 29 are screwed in through the fourth through hole 124 to connect with the end plate
  • the nut 29 is fixedly connected, so that the first end plate 21 and the second end plate 22 are fixedly connected to the second housing 12.
  • the top end of the inner cavity of the second housing 12 is also provided with a third positioning portion 123, the first positioning portion 121, the second positioning portion 122 and the third positioning portion 123 are all provided with mounting holes, the first The housing 11 and the third housing 13 are provided with another bolt corresponding to the mounting hole for fixing the first housing 11 and the third housing 13 to the second housing The two ends of the body 12.
  • the battery pack 100 further includes a first component 111, and the first component 111 is disposed on the surface of the first casing 11 facing away from the battery module 2.
  • the end surface of the first end plate 21 facing the first housing 11 is provided with a protruding column 212, the protruding column 212 is provided with a through hole (not labeled), and the first housing 11 is provided with The boss 212 corresponds to the fifth through hole 112, and another bolt passes through the first component 111 and the fifth through hole 112 to connect to the boss 212, so that the first component 111 and the first component 111 A housing 11 and the first end plate 21 are fixedly connected together.
  • the first housing 11 is also provided with positioning holes 113, two ends of the first assembly 111 are provided with positioning protrusions 114, and the positioning protrusions 114 are received in the positioning holes 113 to prevent the first The component 111 is displaced during installation.
  • the above-mentioned battery pack 100 is fixed on the first support 25 by the second support 4. Although the number of the first support 25 is increased, each first support 25 is provided with a corresponding first through hole 251. The installation of the second bracket 4 is not affected by the change in the number of batteries; and a first groove 42 is provided on the second bracket 4 to fix the wire harness 5 or other components in the first groove 42, and The utilization of the limited space in the battery pack 100 is improved.

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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了一种电池组(100)，包括第一支架(25)和用于固定电池管理系统(BMS)模块的第二支架(4)，所述第二支架(4)固定在所述第一支架(25)上且设置第一凹槽(42)。电池组(100)的线束(5)或其它部件固定在第一凹槽(42)，提高了电池组(100)内的有限空间的利用率。

Description

电池组 技术领域
本申请涉及电池组。
背景技术
用于固定电池管理系统(BMS，BATTERY MANAGEMENT SYSTEM)模块的支架通常需要避开电池组内的线束安装，且受安装空间限制和线束走线的影响，支架一般要求在狭小的安装空间下固定可靠，以避免影响BMS模块的使用性能。通常采用螺丝将支架固定于外壳上或固定于电池组内两侧的端板上。但支架固定于外壳上时，外壳需要设置螺钉孔，这导致外壳的防水、防尘性能下降；支架固定于电池组内两侧的端板上时，当两侧的端板距离增大时，支架的制造成本和固定难度提高，且占用大量空间，增加了线束走线的复杂性。
发明内容
有鉴于此，有必要提供一种电池组以解决上述问题。
本申请的实施例提供了一种电池组，包括第一支架，所述电池组还包括用于固定电池管理系统模块的第二支架，所述第二支架固定在所述第一支架上且设置有第一凹槽。
根据本申请的一些实施例，所述电池组包括与电芯连接的转接板，所述第一支架设于所述转接板一侧，所述第二支架设于所述转接板的另一侧。
根据本申请的一些实施例，所述第一支架开设第一通孔，所述第二支架设置多个安装部，所述安装部开设第二通孔，所述转接板开设第三通孔，所述电池组还包括螺栓，所述螺栓穿过所述第一通孔、和所述第二通孔且连接 于所述第三通孔以固定所述第二支架、所述转接板和所述第一支架。
根据本申请的一些实施例，所述第一凹槽间隔设置多个固定部。
根据本申请的一些实施例，所述固定部包括设置在所述第一凹槽的侧壁的形变部，及设置在所述形变部的一端的卡持部。
根据本申请的一些实施例，所述固定部包括两个设置所述第一凹槽的侧壁的形变部，两个所述形变部分别相向设置卡持部，在所述第一凹槽的不同侧壁上的固定部为对称设置。
根据本申请的一些实施例，至少一个所述固定部的卡持部较其它卡持部远离所述第一凹槽的底壁。
根据本申请的一些实施例，第一凹槽的一端比另外一端宽。
根据本申请的一些实施例，所述第二支架还包括多个预埋或热熔的螺母。
根据本申请的一些实施例，所述第二支架还设置有第二凹槽，所述螺母收容于所述第二凹槽，所述第二凹槽的底壁低于所述螺母背离所述第一支架一侧的端面。
根据本申请的一些实施例，所述电池组包括线束，所述线束收容于所述第一凹槽。
上述电池组通过在所述第二支架上设置第一凹槽，使线束或其他部件固定在所述第一凹槽，提高电池组内的有限空间的利用率。
附图说明
图1为根据本申请一实施例的电池组在壳体拆开时的结构示意图。
图2为电池组在壳体拆开时的另一结构示意图。
图3为图1中电池组去除壳体时的结构示意图。
图4为图1中电池组的第二支架的结构示意图。
图5为图4中第二支架的X向的结构示意图。
图6为图4中第二支架的另一角度的结构示意图。
图7为图6中第二支架沿A-A线的剖面示意图。
图8为图6中第二支架沿B-B线的剖面示意图。
图9为图1中电池去除第二支架的结构示意图。
图10为图9所示电池的电池模组结构示意图。
图11为图10所示电池模组的分解结构示意图。
图12为图10中III部分的放大图。
图13为图10中IV部分的放大图。
图14为电池模组装入壳体的结构示意图。
图15为图14电池模组装入壳体的正视图。
图16为图15中VIII的部分的放大图。
图17为图15中IX部分的放大图。
图18为图10电池模组的第一端板的结构示意图。
图19为图10电池模组的第二端板的结构示意图。
主要元件符号说明
电池组                          100
壳体                            1
第一壳体                        11
第一组件                        111
第五通孔                        112
定位孔                          113
定位凸部                        114
第二壳体                        12
第一定位部                      121
第二定位部                      122
第三定位部                      123
第四通孔                        124
第三壳体                        13
电池模组                       2
电芯                           20
第一端板                       21
第一安装部                     211
凸柱                           212
第二端板                       22
第二安装部                     221
固定带                         23
固定件                         24
第一固定部                     241
第一凸部                       2411
第二凸部                       2412
基底                           2413
第一固定面                     2414
第二固定部                     242
第二固定面                     2421
第一支架                       25
第一通孔                       251
突出部                         252
隔离件                         26
缓冲件                         27
防脱件                         28
端板螺母                       29
转接板                         3
第三通孔                       31
第二支架                       4
支架本体                       41
第一凹槽                        42
安装部                          43
第二通孔                        431
支撑部                          433
筋板部                          435
螺栓                            44
螺母                            45
第二凹槽                        46，46a
底壁                            461，461a，425
侧壁                            463，463a，421，423
固定部                          47，47a
形变部                          471,471a
卡持部                          473，473a
扎带扣                          48
线束                            5
输出端                          51
电极                            6
连接器                          7
入壳方向                        Y
第一方向                        Z
如下具体实施方式将结合上述附图进一步说明本申请。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参阅图1，电池组100包括第一支架25和第二支架4。所述第二支架4用于支撑并固定电池管理系统(BMS，BATTERY MANAGEMENT SYSTEM)模块(图未示)。所述第二支架4固定在所述第一支架25上。所述第二支架4设置有第一凹槽42。在一实施例中，所述第一凹槽42用于供所述电池组100内的线束5走线，但不限于此。所述第一凹槽42固定所述线束5并允许所述线束5通过。可以理解的是，在其他实施例中，排线或软性电路板等其他连接用的电子元件或其他部件也可以固定在所述第一凹槽42。
请同时参阅图1和图2，电池组100还包括壳体1及设于壳体1内的电池模组2和转接板3。所述壳体1包括第一壳体11和第二壳体12。所述第二壳体12大致为两端开口的中空结构，所述第一壳体11封装所述第二壳体12的一侧。所述电池模组2收容在所述第二壳体12的内腔中。所述电池模组2包括多个依次设置的所述第一支架25和多个电芯20。在一实施例中，所述第一支架25用于固定所述电芯20。所述转接板3设于多个所述第一支架25的一侧，且用于电连接所述多个电芯20。所述第二支架4连接部分所述第一支架25，且位于所述转接板3背离多个所述第一支架25的一侧。在一实施例中，所述线束5为总正线，但不限于此。所述线束5的输出端51连接一连接器7。所述连接器7固定于所述第一壳体11上。所述线束5上与所述输出端51相对的另一端连接电极6，在一实施例中，所述电极6设于所述转接板3，但不限于此。可以理解的是，所述电极6也可以设置于所述电池组100内的其他位置。
请同时参阅图2和图3，所述第二支架4包括支架本体41和设置于所述支架本体41的多个安装部43。在一实施例中，所述安装部43的数量为四个， 四个所述安装部43中每两个为一组分置于所述支架本体41相对的两侧，但不限于此。所述第一支架25开设第一通孔251。所述安装部43开设第二通孔431。所述转接板3开设第三通孔31。所述电池组100还包括螺栓44。所述螺栓44依次穿过所述第二通孔431和所述第三通孔31并连接于所述第一通孔251。在一实施例中，所述第一通孔251有螺纹孔，所述螺栓44与螺纹孔配合固定，但不限于此，螺栓44也可以其他固定件。所述螺栓44的一端压持于所述安装部43上，且使所述安装部43压紧所述转接板3于所述第一支架25上，使所述转接板3固定于所述第二支架4和多个所述第一支架25之间。
请同时参阅图4和图5，所述安装部43朝向所述第一支架25的一侧设置凸出于所述支架本体41的支撑部433。所述支撑部433与所述转接板3贴合。所述安装部43设有两个位于所述第二通孔431两侧的筋板部435。所述筋板部435与所述支架本体41相接。所述筋板部435用以提高所述安装部43的强度。可以理解的是，在其他实施例中，所述筋板部435也可以省略。
可以理解的是，在其他实施例中，所述安装部43的数量也可以为两个等其他数量。多个所述安装部43也可以设置于所述支架本体41的同侧。
请参阅图4，所述第二支架4还包括多个螺母45。在一实施例中，所述螺母45的数量为四个，但不限于此。四个所述螺母设置于所述支架本体41的四周，且用于连接所述电池管理系统模块。
请同时参阅图4和图6，所述第二支架4设置有第二凹槽46和第二凹槽46a。在一实施例中，所述第二凹槽46和所述第二凹槽46a设置于所述支架本体41，且分别位于所述第一凹槽42的两侧，但不限于此。两个所述螺母45收容于所述第二凹槽46，且位于所述第二凹槽46远离所述第一凹槽42的两顶角处；另两个所述螺母45收容于所述第二凹槽46a，且位于所述第二凹槽46a远离所述第一凹槽42的两顶角处。所述第二凹槽46的底壁461和所述第二凹槽46a的底壁461a低于所述螺母45背离所述转接板3一侧的端面，使所述第二凹槽46和所述第二凹槽46a能够收容所述电池管理系统模块上的 元件。所述第二凹槽46的侧壁463和所述第二凹槽46a的侧壁463a提高了所述支架本体41的强度。可以理解的是，在其他实施例中，所述第二凹槽46的侧壁463和所述第二凹槽46a的侧壁463a也可以省略。
请同时参阅图4和图6，在一实施例中，所述第一凹槽42贯通所述支架本体41的两侧。所述第一凹槽42包括相对的侧壁421和侧壁423。所述侧壁421与所述第二凹槽46的侧壁463部分重合；所述侧壁423与所述第二凹槽46a的侧壁463a部分重合。所述第一凹槽42的一端比另外一端宽。具体地，所述侧壁421大致平行于所述侧壁423。在所述第一凹槽42靠近所述线束5连接所述电极6的一端，所述侧壁421朝向背离所述侧壁423的一侧弯折延伸，使所述侧壁421和所述侧壁423的间距逐渐变大。较佳地，所述侧壁421与所述侧壁423平行段的间距w满足：d+2mm≤w≤d+3mm，其中d为所述线束5的直径。
可以理解的是，在其他实施例中，所述第二凹槽46和所述第二凹槽46a也可以为合并为一个凹槽并位于所述第一凹槽42的一侧。所述第二凹槽46和/或所述第二凹槽46a也可以分隔为多个凹槽。
在一些实施例中，所述第二支架4为采用注塑成型的壳体结构，所述螺母45采用预埋于所述第二支架4。较佳地，制作所述第二支架4的材料包括PPO和PC+ABS，但不限于此。
可以理解的是，在其他实施例中，所述第二支架4也可以为其他材料，例如，所述第二支架4由尼龙材质制成，并采用机械加工成型。所述螺母45也可以热熔或超声波埋植于所述支架本体41。
请同时参阅图2和图4，所述第一凹槽42间隔设置多个固定部47。所述固定部47用于卡持所述线束5于所述第一凹槽42内。所述固定部47的数量依据所述第一凹槽42的长度设定。较佳地，相邻的所述固定部47的间距范围为35mm～45mm。
请同时参阅图4和图7，所述固定部47包括两个形变部471。两个所述形变部471分别设置在所述第一凹槽42的侧壁421和侧壁423。在所述第一 凹槽42的不同侧壁上的固定部47为对称设置。具体地，在一实施例中，所述形变部471成型于所述侧壁421或侧壁423。所述形变部471朝向所述转接板3的一端设置在所述侧壁421或所述侧壁432，所述形变部471的两侧分别与所述侧壁421或所述侧壁432断开以能够弹性变形。两个所述形变部471分别相向设置卡持部473，两个卡持部473对称设置。两个所述卡持部473相距设定的距离，但不限于此。所述卡持部473受所述线束5压持能够使两个所述形变部471相对张开，以允许所述线束5通过两个所述卡持部473进入所述第一凹槽42。两个所述形变部471复位且两个卡持部473抵持于所述线束5，使所述线束5收容于所述第一凹槽42。
可以理解是，在其他实施例中，所述固定部47也可以包括一个形变部471和一个卡持部473。一个所述形变部471设于所述第一凹槽42的其中一个侧壁上，所述卡持部473设置于所述形变部471的一端，且向所述第一凹槽42的另一侧壁延伸以能够止挡所述第一凹槽42内的所述线束5。
请参阅图7，较佳地，所述卡持部473与所述第一凹槽42的底壁425的间距h1满足：d+2mm≤h1≤d+3mm，其中d为所述线束5的直径。
请同时参阅图4和图8，所述第一凹槽42还设置有一个固定部47a。所述固定部47a用于卡持所述线束5于所述第一凹槽42内。所述固定部47a位于多个所述固定部47的一侧。所述固定部47a与所述固定部47的结构大致相同，所述固定部47a包括两个形变部471和两个卡持部473a。两个形变部471a分别设置在所述第一凹槽42的侧壁421和侧壁423，两个所述形变部471a分别相向设置在两个所述形变部471a。所述固定部47a与所述固定部47的区别在于，所述固定部47a的卡持部473a与所述第一凹槽42的底壁425的距离h2满足：h2＞h1。
可以理解的是，在其他实施例中，所述固定部47的两个卡持部473也可以贴合或部分重叠，只要两个所述形变部471受压弹性变形相对张开的距离足够使所述线束5通过两个所述卡持部473，并进入所述第一凹槽42即可。
可以理解的是，在其他实施例中，所述固定部47a的数量也可以为两个 等其他数量，多个所述固定部47a的高度逐渐增加以允许所述线束5的输出端51均匀弯折。所述固定部47a也可以省略。
请同时参阅图4和图5，所述第二支架4还包括多个扎带扣48。多个所述扎带扣48分别设置于所述支架本体41的两侧，且用于限位电池组100内所述线束5以外的其他线束。
请参阅图9、图10和图11，所述电池组100还包括端板、固定带23和固定件24。所述端板包括第一端板21和第二端板22，分别设置在所述电池模组2的两端面上。所述固定带23套设在所述电池模组2上并固定所述第一端板21和第二端板22。所述壳体1内还设置有定位件，所述固定件24设置在所述电池模组2上。所述电池模组2装入所述壳体1时，所述固定件24与壳体1内的定位件配合，以限制所述电池模组2的移动。
具体地，多个所述电芯20叠放在一起，每个所述电芯20收容在所述第一支架25中。所述电芯20大致呈矩形，所述第一支架25的尺寸与所述电芯20的尺寸匹配。所述第一支架25大致呈中空的矩形框，所述第一支架25固定在所述电芯20的周侧。所述固定带23沿平行于电芯20堆叠的方向套设在多个所述第一支架25外侧上，从而将所述多个电芯20固定在一起，防止所述多个电芯20松脱。所述第一端板21和所述第二端板22分别设置在电池模组2的最外侧的两个电芯20的端面上。所述固定带23套设于多个所述第一支架25时，所述第一端板21和所述第二端板22也固定于所述固定带23中，并在所述固定带23的张紧力作用下压合所述多个电芯20，进一步固定所述多个电芯20。所述转接板3固定设置在所述第一支架25的短侧边上。
所述第一支架25的长侧边的端部还设置有防脱件28，所述防脱件28大致为一个弹性片。在一实施例中，所述防脱件28与所述第一支架25为一体成型结构。所述固定带23套设到多个所述第一支架25后，将所述固定带23朝向所述防脱件28推动，使所述固定带23部分插入所述第一支架25外侧与所述防脱件28内侧之间，所述防脱件28限制所述固定带23的移动，从而防止所述固定带23从所述第一支架25端部脱落。任意相邻电芯20之间还设置有隔离件26，为电芯20膨胀提供膨胀空间，具体的，本实施中，隔离件26为泡棉，当电芯膨胀时，隔离件26可被压缩。所述第一端板21与所述电芯 20和所述第二端板22与所述电芯20之间也设置有隔离件26。
所述壳体1还包括第三壳体13。所述第三壳体13设置在所述第二壳体12背离所述第一壳体11的一端，并与所述第一壳体11封装所述第二壳体12。换句话说，所述第一壳体11和所述第三壳体13用作所述第二壳体12的端盖。所述第一端板21与所述第一壳体11之间设置有缓冲件27并且设置于所述第二壳体12内，所述第二端板22与所述第三壳体13之间也设置有缓冲件27，缓冲所述电池模组2在所述壳体1中的振动。所述缓冲件27由弹性材料制成，优选为橡胶垫，在其他实施例中，所述缓冲件27也可以为泡棉、发泡硅胶、海绵等柔性材料，本申请不对此进行限定。在一实施例中，所述缓冲件27粘接在所述第一端板21和所述第二端板22背离所述电池模组2的表面，可以理解，在其他实施例中，所述缓冲件27还可以固定在所述第一壳体11和所述第二壳体12朝向所述电池模组2的表面。
请参阅图11至图14，所述固定件24包括第一固定部241和第二固定部242，所述第一固定部241和所述第二固定部242设置所述电池模组2的侧边，且所述第一固定部241与所述第二固定部242间隔设置。图14中箭头所示的方向为电池模组2进入第二壳体12的入壳方向Y。在一实施例中，两组所述第一固定部241对称设置在所述电池模组2的两侧，两组所述第二固定部242也对称设置在所述电池模组2的两侧，在其他实施例中，所述第一固定部241和所述第二固定部242可以分别有一组，设置在所述电池模组2的不同侧。所述定位件设置于所述第二壳体12的内侧壁上，所述定位件包括第一定位部121和第二定位部122，所述第一定位部121的位置与所述第一固定部241对应，所述第二定位部122的位置与所述第二固定部242对应。
请继续参阅图15、图16和图17，所述固定件24设置在所述第一支架25的长侧边上，所述第一固定部241和所述第二固定部242设置于所述第一支架25同侧。具体地，所述第一固定部241靠近所述转接板3设置，所述第二固定部242设置在所述第一支架25的长侧边远离所述转接板3的一端。所述第一固定部241的横截面大致呈“U”型，其包括第一凸部2411、第二凸部2412和基底2413，所述第一凸部2411和所述第二凸部2412相对设置，且分别自所述基底2413两端向外凸伸。所述第一定位部121设置在所述第一凸部2411与所述第二凸部2412之间，与所述第一固定部241配合。所述第二凸部2412 朝向所述第一凸部2411的一侧为第一固定面2414，所述第一固定面2414支撑所述第一定位部121，即所述第一定位部121抵持所述第一固定面2414，以限制所述电池模组2沿第一方向的移动，本实施例中，第一方向是指图9中的Z轴所示的方向。
所述第二壳体12的侧壁具有一倾斜面和一竖直面，所述倾斜面靠近所述第二壳体12的顶面，所述第一固定部241和所述第一定位部121大致位于所述倾斜面和所述竖直面的交汇处，所述第一凸部2411位于所述第二凸部2412的上方，为了保证所述电池模组2能顺利插入所述第二壳体12，所述第一凸部2411的长度小于所述第二凸部2412的长度。可以理解，在其他实施例中，所述第一凸部2411的长度可以与所述第二凸部2412的长度相同，根据所述壳体1的实际形状决定，本申请不对此进行限定。
所述第二固定部242的横截面大致呈矩形，所述第二固定部242背离所述第一固定部241的一侧为第二固定面2421，所述第二定位部122支撑或抵触所述第二固定面2421以限制所述电池模组2沿第二方向的移动，即限制所述电池模组2以图14的视角向下移动。所述第二方向与图9中Z轴方向相反。可以理解，所述第一固定部241的第二凸部2412和所述第二固定部242设置于所述第一定位部121和所述第二定位部122之间，从而限制所述电池模组2在所述第二壳体12内的上下移动。同时，由于所述电池模组2的两侧边均设置有固定件24，第二壳体12的对称的两内侧壁上也对应设置有与所述固定件24对应的定位件，从而有效减少外部振动和冲击对电池模组2造成的机械损伤，提高电池模组2的使用安全性。
所述固定件24与所述第二壳体12内的定位件配合以限制所述电池模组2周向移动的同时，还可以导向所述电池模组2的插入方向。
请再次参阅图11，所述第一固定部241和所述第二固定部242的长度与单个所述第一支架25的侧边宽度相同，多个所述第一固定部241和多个所述第二固定部242分别随多个电芯20的堆叠而拼接，形成所述固定件24。可以理解，在其他实施例中，所述第一固定部241和所述第二固定部242的长度可以与所述电池模组2的长度相同，单个所述第一固定部241和单个所述第二固定部242可以同时连接固定于多个第一支架25的侧边。
请再次参阅图11和图15，所述第一支架25上还设置有突出部252，所 述突出部252仅设置在所述第一支架25的一侧。如前述，所述电池模组2包括多个叠放的电芯20和第一支架25，电芯20设置在所述第一支架25内，所述突出部252用于避免所述第一支架25在堆叠安装过程中装反，还用于防止安装好的电池模组2与转接板3焊接时焊反。
请参阅图9、图18和图19，所述第一端板21的两侧设置有第一安装部211，所述第二端板22的两侧设有与所述第一安装部211结构类似的第二安装部221。所述第一安装部211和所述第二安装部221大致垂直于所述第一端板21和所述第二端板22的端面。所述第一安装部211和所述第二安装部221上均设置有端板螺母29，所述第二壳体12的侧壁上开设有与所述端板螺母29对应的第四通孔124。在一实施例中，所述端板螺母29优选为盲孔螺母，与所述端板螺母29配套的螺栓、螺丝等紧固件从所述第四通孔124旋入，与所述端板螺母29固定连接，从而使所述第一端板21和所述第二端板22与所述第二壳体12固定连接。
所述第二壳体12的内腔顶端还设置有第三定位部123，所述第一定位部121、第二定位部122和第三定位部123上均开设有安装孔，所述第一壳体11和所述第三壳体13上设置有对应所述安装孔的另一螺栓，用于将所述第一壳体11和所述第三壳体13固定安装在所述第二壳体12的两端。
所述电池组100还包括一第一组件111，所述第一组件111设置在所述第一壳体11背离所述电池模组2的表面。所述第一端板21朝向所述第一壳体11的端面上设置有凸柱212，凸柱212上设置有通孔(未标示)，所述第一壳体11上开设有与所述凸柱212对应的第五通孔112，另一螺栓穿过所述第一组件111和所述第五通孔112与所述凸柱212连接，从而使所述第一组件111、所述第一壳体11和所述第一端板21三者固定连接在一起。所述第一壳体11上还开设定位孔113，所述第一组件111的两端设置有定位凸部114，所述定位凸部114收容在所述定位孔113中，防止所述第一组件111在安装的过程中发生位移。
上述电池组100利用所述第二支架4固定于所述第一支架25上，尽管第一支架25的数量增加，但每个第一支架25上均设置相应的第一通孔251，所 述第二支架4的安装不受电芯数量变化的影响；且在所述第二支架4上设置第一凹槽42，使所述线束5或其他部件固定在所述第一凹槽42，且提高了电池组100内的有限空间的利用率。
以上实施例仅用以说明本申请的技术方案而非限制，尽管参照较佳实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解，可以对本申请的技术方案进行修改或等同替换，而不脱离本申请技术方案的精神和实质。

Claims (11)

  1. 一种电池组，包括第一支架，其特征在于，所述电池组还包括用于固定电池管理系统模块的第二支架，所述第二支架固定在所述第一支架上且设置有第一凹槽。
  2. 如权利要求1所述的电池组，其特征在于：所述电池组包括与电芯连接的转接板，所述第一支架设于所述转接板一侧，所述第二支架设于所述转接板的另一侧。
  3. 如权利要求2所述的电池组，其特征在于：所述第一支架开设第一通孔，所述第二支架设置多个安装部，所述安装部开设第二通孔，所述转接板开设第三通孔，所述电池组还包括螺栓，所述螺栓穿过所述第一通孔、和所述第二通孔且连接于所述第三通孔以固定所述第二支架、所述转接板和所述第一支架。
  4. 如权利要求1所述的电池组，其特征在于：所述第一凹槽间隔设置多个固定部。
  5. 如权利要求4所述的电池组，其特征在于：所述固定部包括设置在所述第一凹槽的侧壁的形变部，及设置在所述形变部的一端的卡持部。
  6. 如权利要求5所述的电池组，其特征在于：所述固定部包括两个设置所述第一凹槽的侧壁的形变部，两个所述形变部分别相向设置卡持部，在所述第一凹槽的不同侧壁上的固定部为对称设置。
  7. 如权利要求6所述的电池组，其特征在于：至少一个所述固定部的卡持部较其它卡持部远离所述第一凹槽的底壁。
  8. 如权利要求1所述的电池组，其特征在于：所述第一凹槽的一端比另外一端宽。
  9. 如权利要求1所述的电池组，其特征在于：所述第二支架还包括多个预埋或热熔的螺母。
  10. 如权利要求9所述的电池组，其特征在于：所述第二支架还设置有第 二凹槽，所述螺母收容于所述第二凹槽，所述第二凹槽的底壁低于所述螺母背离所述第一支架一侧的端面。
  11. 如权利要求1-10任一项所述的电池组，其特征在于：所述电池组包括线束，所述线束收容于所述第一凹槽。
PCT/CN2020/081495 2019-08-09 2020-03-26 电池组 WO2021027289A1 (zh)

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