Power battery lifting point structure, power battery and vehicle

Abstract

The invention relates to a power battery lifting point structure, a power battery and a vehicle, and belongs to the technical field of automobiles. The power battery lifting point structure comprises a supporting structure, a first connecting structure and a second connecting structure, the supporting structure is suitable for penetrating through an internal cross beam of a power battery and fixedly connected with the internal cross beam, and the first end of the supporting structure is suitable for abutting against the inner side of a lower shell of the power battery; the second end of the supporting structure is suitable for abutting against the inner side of an upper shell of the power battery, the first connecting structure is suitable for abutting against the outer side of a lower shell and penetrating into the inner side of the lower shell to be connected with the first end of the supporting structure, and the second connecting structure is suitable for being connected with a vehicle body beam of a vehicle and further suitable for abutting against the outer side of the upper shell. And the upper shell penetrates through the inner side of the upper shell and is connected with the second end of the supporting structure. According to the power battery lifting point structure, the manufacturing difficulty of all structural parts forming the power battery lifting point structure is small, and the structural strength and the assembly reliability of the power battery can be guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of automobile technology, and in particular to a power battery hanging point structure, a power battery and a vehicle. Background Art

[0002] As the core component of new energy vehicles, the energy density of power batteries affects the range of electric vehicles. At present, in order to increase the power or energy density, electric vehicles mainly rely on increasing the volume of battery packs to arrange more battery cells.

[0003] The power battery is mainly hoisted on the vehicle chassis by bolts around the power battery. However, as the volume or weight of the power battery increases, the middle part of the power battery is increasingly affected by gravity, which may cause problems such as insufficient structural strength and poor assembly reliability. To this end, the existing technology often adds a middle through hole in the middle of the power battery, and fixes it to the vehicle body beam by passing a long bolt through the middle through hole of the power battery. However, the overly long bolts are difficult to manufacture and the strength is not easy to ensure, which makes the structural strength and assembly reliability of the power battery still prone to problems. Summary of the invention

[0004] In view of this, the embodiments of the present disclosure provide a power battery suspension point structure, a power battery and a vehicle, so that the manufacturing difficulty of each structural component constituting the power battery suspension point structure is small, and the structural strength and assembly reliability of the power battery can be guaranteed. The technical solution is as follows:

[0005] In a first aspect, a power battery hanging point structure is provided, wherein the power battery hanging point structure comprises a supporting structure, a first connecting structure and a second connecting structure;

[0006] The support structure is suitable for penetrating the internal cross beam of the power battery and being fixedly connected to the internal cross beam, and the first end of the support structure is suitable for abutting against the inner side of the lower shell of the power battery, and the second end of the support structure is suitable for abutting against the inner side of the upper shell of the power battery;

[0007] The first connecting structure is adapted to abut against the outer side of the lower shell and pass through the inner side of the lower shell to be connected with the first end of the supporting structure;

[0008] The second connection structure is suitable for being connected to a vehicle body beam, and the second connection structure is also suitable for being pressed against the outer side of the upper shell and passing through the inner side of the upper shell to be connected to the second end of the support structure.

[0009] In a possible implementation, the support structure includes a first support member and a second support member;

[0010] The first end of the first support member is suitable for being located at the first side of the internal cross beam and abutting against the inner side of the lower shell, and connected to the first connection structure; the second end of the first support member is suitable for passing through the second side of the internal cross beam and connecting to the first end of the second support member; the second end of the second support member is suitable for abutting against the inner side of the upper shell, and connected to the second connection structure;

[0011] The first end of the first support member has a first limiting structure, which is suitable for abutting against the first side of the inner beam, and the first end of the second support member has a second limiting structure, which is suitable for abutting against the second side of the inner beam.

[0012] In a possible implementation, the second support member is rod-shaped, a first end of the second support member has a first connection hole, a second end of the second support member has a second connection hole, the second end of the first support member extends into the first connection hole to be connected to the second support member, and the first connection structure extends into the second connection hole to be connected to the second support member;

[0013] Wherein, the diameters of the first end and the second end of the second support member are both larger than the diameter of the middle portion of the second support member.

[0014] In a possible implementation, the second end of the first support member and the first connecting hole have internal and external threads that match each other, and the first connecting structure and the second connecting hole have internal and external threads that match each other.

[0015] In a possible implementation manner, the first support member, the second support member, and the first connection structure are all made of steel.

[0016] In a possible implementation, the first connection structure includes a first connection member and a first fastener;

[0017] The first end of the first connecting member is adapted to abut against the first side of the external cross beam of the power battery, the second end of the first connecting member is adapted to pass through the second side of the external cross beam and be connected to the first end of the first fastener, and the second end of the first fastener is adapted to pass through the inner side of the lower housing and be connected to the first end of the support structure;

[0018] The first end of the first fastener has a third limiting structure, and the third limiting structure is suitable for abutting against the outer side of the lower shell and the second side of the external beam.

[0019] In a possible implementation, the second connection structure includes a second connection member and a second fastener;

[0020] The first end of the second connecting member is adapted to abut against the first side of the vehicle body beam, the second end of the second connecting member is adapted to pass through the second side of the vehicle body beam and connect with the first end of the second fastener, and the second end of the second fastener is adapted to pass through the inner side of the upper shell and connect with the second end of the support structure;

[0021] The first end of the second fastener has a fourth limiting structure, and the fourth limiting structure is suitable for abutting against the outer side of the upper shell and the second side of the vehicle body beam.

[0022] In a possible implementation, the power battery hanging point structure further includes a first sealing ring and a second sealing ring;

[0023] The first sealing ring is sandwiched between the first end of the supporting structure and the lower shell, and surrounds the first connecting structure and passes through the inner side of the lower shell;

[0024] The second sealing ring is sandwiched between the second end of the supporting structure and the upper shell, and surrounds a portion of the second connecting structure that passes through the inner side of the upper shell.

[0025] In a second aspect, a power battery is provided, the power battery comprising an internal crossbeam, a lower shell, an upper shell, and a power battery hanging point structure as described in any one of the first aspects, the lower shell and the upper shell together form a battery pack inner cavity, and the internal crossbeam is located in the battery pack inner cavity;

[0026] The support structure penetrates the internal cross beam of the power battery and is fixedly connected to the internal cross beam, and the first end of the support structure abuts against the inner side of the lower shell of the power battery, and the second end of the support structure abuts against the inner side of the upper shell of the power battery;

[0027] The first connecting structure abuts against the outer side of the lower shell and passes through the inner side of the lower shell to be connected with the first end of the supporting structure;

[0028] The second connection structure is suitable for being connected to a vehicle body beam. The second connection structure also abuts against the outer side of the upper shell and passes through the inner side of the upper shell to be connected to the second end of the support structure.

[0029] In a third aspect, a vehicle is provided, comprising a body beam and a power battery as described in the second aspect, wherein the body beam is connected to the second connecting structure.

[0030] In the solution shown in the present disclosure, the length of the support structure, the first connection structure and the second connection structure can be relatively short relative to the long bolts, the manufacturing difficulty is small, and the strength is easy to ensure. In addition, the support structure is fixedly connected to the internal crossbeam of the power battery. At the same time, the first end and the second end of the support structure are respectively against the lower shell and the upper shell of the power battery, which can improve the stability of the internal structure of the power battery. The first connection structure realizes a stable connection between the lower shell and the support structure, and the second connection structure realizes a stable connection between the upper shell and the support structure and the vehicle body beam. Thereby, the structural strength and assembly reliability of the power battery can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 is a structural schematic diagram of a power battery hanging point structure provided by an embodiment of the present disclosure;

[0033] Figure 2 is a schematic cross-sectional structure diagram of a power battery hanging point structure provided by an embodiment of the present disclosure;

[0034] Figure 3 It is a schematic diagram of the disassembled structure of a power battery hanging point structure provided by an embodiment of the present disclosure;

[0035] Figure 4 is a schematic cross-sectional structure diagram of a first support member provided in an embodiment of the present disclosure;

[0036] Figure 5 is a schematic cross-sectional structure diagram of a second support member provided in an embodiment of the present disclosure;

[0037] Figure 6 is a schematic cross-sectional structure diagram of a first fastener provided in an embodiment of the present disclosure;

[0038] Figure 7 It is a schematic diagram of the cross-sectional structure of a second fastener provided in an embodiment of the present disclosure.

[0039] Description of Reference Numerals

[0040] 1. Support structure 11. First support member; 111. First limiting structure; 112. Fourth connecting hole; 12. Second support member; 121. Second limiting structure; 122. First connecting hole; 123. Second connecting hole; 2. First connecting structure; 21. First connecting member; 22. First fastener; 221. Third limiting structure; 222. Third connecting hole; 3. Second connecting structure; 31. Second connecting member; 32. Second fastener; 321. Fourth limiting structure; 322. Fifth connecting hole; 4. Internal cross beam; 41. First mounting hole; 5. Lower shell; 51. Third mounting hole; 6. Upper shell; 61. Fifth mounting hole; 7. Vehicle body beam; 71. Fourth mounting hole; 8. External cross beam; 81. Second mounting hole; 91. First sealing ring; 92. Second sealing ring; 10. Inner cavity of battery pack DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0042] This embodiment relates to a power battery suspension point structure, such as Figure 1 The figure shows the schematic diagram of the power battery suspension point structure. Figure 2 The figure shows the cross-sectional structure diagram of the power battery suspension point structure. Figure 3 The figure shows the split structure diagram of the power battery hanging point structure. Figure 4 FIG. 1 is a schematic cross-sectional structure diagram of a first support member. Figure 5 FIG. 1 is a schematic cross-sectional structure diagram of the second support member. Figure 6 FIG. 1 is a schematic diagram of a cross-sectional structure of a first fastener. Figure 7 Shown is a schematic cross-sectional structure diagram of the second fastener.

[0043] refer to Figure 1 and Figure 2 As shown, the power battery suspension point structure includes a support structure 1, a first connection structure 2 and a second connection structure 3. The support structure 1 is suitable for penetrating the internal cross beam 4 of the power battery and is fixedly connected to the internal cross beam 4. For example, the support structure 1 and the internal cross beam 4 can be integrally formed, or can be independent structural members, and can be fixedly connected together in a detachable or non-detachable manner. For example, the support structure 1 and the internal cross beam 4 can be fixedly connected together in an indetachable manner by welding or the like, or the support structure 1 and the internal cross beam 4 can be fixedly connected together by bolts, clamping or the like.

[0044] The first end of the support structure 1 can be abutted against the inner side of the lower shell 5 of the power battery, and the second end of the support structure 1 can be abutted against the inner side of the upper shell 6 of the power battery, so that the support structure 1 can be supported inside the power battery to improve the stability of the internal structure of the power battery.

[0045] Continue to refer Figure 2 As shown, the first connection structure 2 can be against the outer side of the lower shell 5, and pass through the inner side of the lower shell 5 to be fixedly connected with the first end of the support structure 1. Thus, the lower shell 5 and the support structure 1 can be fixedly connected together through the first connection structure 2.

[0046] Continue to refer Figure 2 As shown, the second connection structure 3 is suitable for being fixedly connected to the vehicle body beam 7, and the second connection structure 3 is also suitable for abutting against the outer side of the upper shell 6, and passing through the inner side of the upper shell 6 to be fixedly connected to the second end of the support structure 1. Thus, the upper shell 6 and the support structure 1 can be fixedly connected to the vehicle body beam 7 through the second connection structure 3.

[0047] It should be noted that the inner side of the lower shell 5 refers to the side of the lower shell 5 facing the battery pack cavity 10 of the power battery, and the outer side is opposite to the inner side, which refers to the side of the lower shell 5 away from the battery pack cavity 10 of the power battery. The inner side of the upper shell 6 refers to the side of the upper shell 6 facing the battery pack cavity 10 of the power battery, and the outer side is opposite to the inner side, which refers to the side of the upper shell 6 away from the battery pack cavity 10 of the power battery.

[0048] As can be seen from the above, the lengths of the supporting structure 1, the first connecting structure 2 and the second connecting structure 3 can be relatively short compared to the long bolts, the manufacturing difficulty is small, and the strength is easy to ensure.

[0049] Furthermore, the support structure 1 is fixedly connected to the internal cross beam 4 of the power battery. Meanwhile, the first end and the second end of the support structure 1 are respectively abutted against the lower shell 5 and the upper shell 6 of the power battery, which can improve the stability of the internal structure of the power battery.

[0050] The first connection structure 2 realizes a stable connection between the lower shell 5 and the support structure 1, and the second connection structure 3 realizes a stable connection between the upper shell 6 and the support structure 1 and the vehicle body beam 7. Thus, the structural strength and assembly reliability of the power battery can be improved.

[0051] In one example, reference Figure 2As shown, the support structure 1 may include a first support member 11 and a second support member 12. The first end of the first support member 11 may be located at the first side of the internal cross beam 4 and abut against the inner side of the lower shell 5, and fixedly connected to the first connection structure 2, the second end of the first support member 11 may pass through the second side of the internal cross beam 4 and be fixedly connected to the first end of the second support member 12, and the second end of the second support member 12 is suitable for abutting against the inner side of the upper shell 6, and fixedly connected to the second connection structure 3.

[0052] For example Figure 3 Combined with Figure 2 As shown, the internal cross beam 4 has a first mounting hole 41 that passes through from top to bottom. The lower end of the first support member 11 can be located on the lower side of the internal cross beam 4 and abut against the inner side of the lower shell 5, and be fixedly connected to the first connecting structure 2. The upper end of the first support member 11 can be loosely matched with the first mounting hole 41, so that the upper end of the first support member 11 can pass from the first mounting hole 41 to the upper side of the internal cross beam 4 and be fixedly connected to the lower end of the second support member 12. The upper end of the second support member 12 can abut against the inner side of the upper shell 6 and be fixedly connected to the second connecting structure 3.

[0053] Among them, reference Figure 4 Combined with Figure 2 As shown, the first end of the first support member 11 has a first limiting structure 111, and the first limiting structure 111 can be against the first side of the inner cross beam 4, referring to Figure 5 Combined with Figure 2 As shown, the first end of the second support member 12 has a second limiting structure 121 , and the second limiting structure 121 can abut against the second side of the inner cross beam 4 .

[0054] For example Figure 4 Combined with Figure 2 As shown, the lower end of the first support member 11 has a first limiting structure 111, and the diameter of the first limiting structure 111 is larger than the diameter of the first mounting hole 41, so that the first limiting structure 111 can be against the lower side of the internal beam 4, for example Figure 5 Combined with Figure 2 As shown, the lower end of the second support member 12 has a second limiting structure 121 , and the diameter of the second limiting structure 121 is greater than the diameter of the first mounting hole 41 , so that the second limiting structure 121 can abut against the upper side of the internal beam 4 .

[0055] Since the support structure 1 includes the first support member 11 and the second support member 12 , the first support member 11 and the second support member 12 can have a shorter length, thereby further reducing the manufacturing difficulty, which is beneficial to improving the structural strength of the power battery.

[0056] At the same time, a detachable fixed connection can be achieved between the first support member 11, the second support member 12 and the internal cross beam 4, and the internal cross beam 4 can be clamped between the first limiting structure 111 and the second limiting structure 121, so that the connection between the first support member 11 and the second support member 12 and the internal cross beam 4 is relatively stable.

[0057] In one example, the second support member 12 is rod-shaped, the first end of the second support member 12 has a first connecting hole 122, the second end of the second support member 12 has a second connecting hole 123, the second end of the first support member 11 extends into the first connecting hole 122 and is fixedly connected to the second support member 12, and the first connecting structure 2 extends into the second connecting hole 123 and is fixedly connected to the second support member 12.

[0058] For example Figure 5 As shown, the lower end of the second support member 12 has a first connecting hole 122, the upper end of the second support member 12 has a second connecting hole 123, the upper end of the first support member 11 extends into the first connecting hole 122 and is fixedly connected to the second support member 12, and the first connecting structure 2 extends into the second connecting hole 123 and is fixedly connected to the second support member 12.

[0059] The diameters of the first end and the second end of the second support member 12 are both larger than the diameter of the middle portion of the second support member 12 .

[0060] For example, the upper end of the second support member 12 has a fifth limiting structure 124, and the lower end has a second limiting structure 121, and the diameters of the fifth limiting structure 124 and the second limiting structure 121 are greater than the diameter of the middle portion of the second support member 12. Specifically, the diameters of the fifth limiting structure 124 and the second limiting structure 121 can both be 10 mm, and the diameter of the middle portion of the second support member 12 can be 8 mm; for another example, the diameters of the fifth limiting structure 124 and the second limiting structure 121 can both be 15 mm, and the diameter of the middle portion of the second support member 12 can be 12 mm; for another example, the diameters of the fifth limiting structure 124 and the second limiting structure 121 can both be 12 mm, and the diameter of the middle portion of the second support member 12 can be 9 mm, etc.

[0061] In this way, although the second support member 12 has a first connecting hole 122 and a second connecting hole 123 at both ends respectively, the structural strength of the two ends of the second support member 12 and the strength of the middle part can still be relatively uniform, so that the second support member 12 can have a higher structural strength, thereby reducing the material cost while ensuring the structural strength of the second support member 12.

[0062] In one example, the second end of the first support member 11 and the first connection hole 122 have matching internal and external threads, and the first connection structure 2 and the second connection hole 123 have matching internal and external threads. For example, the upper end of the first support member 11 may have a first external thread, and the first connection hole 122 may have a first internal thread, and the first external thread and the first internal thread may match in diameter to form a threaded connection. The end of the first connection structure 2 located on the inner side of the upper shell 6 may have a second external thread, and the second connection hole 123 may have a second internal thread, and the second external thread and the second internal thread may match in diameter to form a threaded connection.

[0063] In this way, the second support member 12 can be fixedly connected to the first support member 11 and the first connecting structure 2 by means of threaded connection, so that the assembly between the second support member 12, the first support member 11 and the first connecting structure 2 is relatively simple, efficient and relatively stable.

[0064] In one example, since the connection between the first support member 11 and the second support member 12 and the internal cross beam 4 does not need to be welded, steel material can be used. Accordingly, the first support member 11, the second support member 12 and the first connection structure 2 are all made of steel. Therefore, compared with aluminum alloy material, the thread between the first support member 11, the second support member 12 and the first connection structure 2 made of steel will not have the problem of thread slippage even after multiple disassembly and assembly, which can further ensure the strength and stability of the connection.

[0065] In one example, the first connection structure 2 includes a first connection member 21 and a first fastener 22. The first end of the first connection member 21 can be against the first side of the external beam 8 of the power battery, the second end of the first connection member 21 is suitable for passing through the second side of the external beam 8 and connecting with the first end of the first fastener 22, and the second end of the first fastener 22 is suitable for passing through the inner side of the lower shell 5 and connecting with the first end of the support structure 1.

[0066] Furthermore, the first end of the first fastener 22 has a third limiting structure 221 , and the third limiting structure 221 is suitable for abutting against the outer side of the lower shell 5 and the second side of the external beam 8 .

[0067] For example Figure 3 Combined with Figure 2 As shown, the external cross beam 8 can be located at the lower side of the lower shell 5, the external cross beam 8 has a second mounting hole 81 that passes through from top to bottom, and the lower shell 5 has a third mounting hole 51 that passes through from top to bottom. The first connecting member 21 can be as follows Figure 2 and Figure 3 The first bolt shown in the figure has a first nut at its lower end. The first fastener 22 may be a second bolt, and the lower end of the second bolt may have a Figure 6The second nut and the third connection hole 222 are shown, and the second nut is used as the third limiting structure 221, and the third connection hole 222 may have a third internal thread. The lower end of the first support member 11 also has a fourth connection hole 112, and the fourth connection hole 112 may have a fourth internal thread.

[0068] The first nut can be pressed against the lower side of the external beam 8, and the upper end of the first bolt can pass through the second mounting hole 81 to the upper side of the external beam 8 and extend into the third connection hole 222, so that the third external thread of the first bolt is tightened with the third internal thread. The upper end of the second bolt can pass through the third mounting hole 51 to the inner side of the lower shell 5 and extend into the fourth connection hole 112, so that the fourth external thread of the second bolt is tightened with the fourth internal thread. In addition, the second nut can be pressed against the outer side of the lower shell 5 and the upper side of the external beam 8. Thus, the fixed connection between the external beam 8 and the lower shell 5 and the first support member 11 is achieved.

[0069] As described above, the offline assembly of the external cross beam 8 of the power battery can be realized, and the structural strength of the power battery can be improved. At the same time, the first connecting member 21 and the first fastener 22 of the first connecting structure 2 can have a high structural strength, and the connection between the lower shell 5, the external cross beam 8 and the first support member 11 is relatively stable, thereby improving the structural strength of the power battery.

[0070] In one example, the second connection structure 3 includes a second connection member 31 and a second fastener 32. The first end of the second connection member 31 is adapted to abut against the first side of the vehicle body beam 7, the second end of the second connection member 31 is adapted to pass through the second side of the vehicle body beam 7 and connect with the first end of the second fastener 32, and the second end of the second fastener 32 is adapted to pass through the inner side of the upper shell 6 and connect with the second end of the support structure 1.

[0071] Furthermore, the first end of the second fastener 32 has a fourth limiting structure 321 , and the fourth limiting structure 321 is suitable for abutting against the outer side of the upper shell 6 and the second side of the vehicle body beam 7 .

[0072] For example Figure 3 Combined with Figure 2 As shown, the body beam 7 is located on the upper side of the upper shell 6, the body beam 7 has a fourth mounting hole 71 that runs through the upper shell 6, and the upper shell 6 has a fifth mounting hole 61 that runs through the upper shell 6. The second connecting member 31 can be as follows Figure 2 and Figure 3 The third bolt shown in the figure has a third nut at its upper end. The second fastener 32 may be a fourth bolt, and the upper end of the fourth bolt may have a Figure 7 The fourth nut and the fifth connecting hole 322 are shown, and the fourth nut is used as the fourth limiting structure 321. The fifth connecting hole 322 may have a fifth internal thread, and the thread of the fourth bolt may be the second external thread.

[0073] Among them, the third nut can abut against the upper side of the vehicle body beam 7. The lower end of the third bolt can pass through the fourth mounting hole 71 to the lower side of the vehicle body beam 7 and extend into the fifth connection hole 322, so that the fifth external thread of the third bolt is tightened with the fifth internal thread. The lower end of the fourth bolt can pass through the fifth mounting hole 61 to the inner side of the lower housing 5 and extend into the second connection hole 123, so that the second external thread of the fourth bolt is tightened with the second internal thread. And the fourth nut can abut against the outer side of the upper housing 6 and the lower side of the vehicle body beam 7. Thus, the fixed connection between the vehicle body beam 7, the upper housing 6 and the second support member 12 is realized.

[0074] As described above, both the second connecting member 31 and the second fastening member 32 of the second connection structure 3 can have relatively high structural strength, and the connection to the upper housing 6, the vehicle body beam 7 and the second support member 12 is relatively firm, thereby improving the structural strength of the power battery.

[0075] In one example, referring to Figure 2 and Figure 3 as shown, the power battery lifting point structure further includes a first sealing ring 91 and a second sealing ring 92.

[0076] Among them, the first sealing ring 91 is clamped between the first end of the support structure 1 and the lower housing 5, and surrounds the part of the first connection structure 2 passing through to the inner side of the lower housing 5. The second sealing ring 92 is clamped between the second end of the support structure 1 and the upper housing 6, and surrounds the part of the second connection structure 3 passing through to the inner side of the upper housing 6.

[0077] For example Figure 2 as shown, the first sealing ring 91 can be clamped between the first limiting structure 111 and the lower housing 5, and sleeved outside the upper end of the first fastening member 22. The second sealing ring 92 can be clamped between the fifth limiting structure 124 and the lower housing 5, and sleeved outside the lower end of the second fastening member 32.

[0078] Thus, the airtightness of the power battery can be improved through the first sealing ring 91 and the second sealing ring 92.

[0079] In one example, the cross-section of the external cross beam 8 can be in the shape of a Chinese character 'Ri'.

[0080] In one example, the cross-section of the internal cross beam 4 can be in the shape of a Chinese character 'Tian'.

[0081] In the embodiments of the present disclosure, the lengths of the support structure 1, the first connection structure 2 and the second connection structure 3 can be relatively short with respect to the long bolt, the manufacturing difficulty is small, and the strength is easy to be guaranteed.

[0082] Furthermore, the support structure 1 is fixedly connected to the internal cross beam 4 of the power battery. Meanwhile, the first end and the second end of the support structure 1 are respectively abutted against the lower shell 5 and the upper shell 6 of the power battery, which can improve the stability of the internal structure of the power battery.

[0083] The first connection structure 2 realizes a stable connection between the lower shell 5 and the support structure 1, and the second connection structure 3 realizes a stable connection between the upper shell 6 and the support structure 1 and the vehicle body beam 7. Thus, the structural strength and assembly reliability of the power battery can be improved.

[0084] This embodiment further provides a power battery, which includes an internal crossbeam 4, a lower shell 5, an upper shell 6, and a power battery hanging point structure as described in any one of the first aspects, wherein the lower shell 5 and the upper shell 6 enclose a battery pack inner cavity 10, and the internal crossbeam 4 is located in the battery pack inner cavity 10. The support structure 1 passes through the internal crossbeam 4 of the power battery and is fixedly connected to the internal crossbeam 4, and the first end of the support structure 1 abuts against the inner side of the lower shell 5 of the power battery, and the second end of the support structure 1 abuts against the inner side of the upper shell 6 of the power battery.

[0085] The first connection structure 2 abuts against the outer side of the lower shell 5, and passes through the inner side of the lower shell 5 to be connected to the first end of the support structure 1. The second connection structure 3 is suitable for being connected to the vehicle body beam 7, and the second connection structure 3 also abuts against the outer side of the upper shell 6, and passes through the inner side of the upper shell 6 to be connected to the second end of the support structure 1.

[0086] In the disclosed embodiment, the lengths of the support structure 1, the first connection structure 2 and the second connection structure 3 can be relatively short compared to long bolts, which reduces the manufacturing difficulty and makes it easy to ensure strength.

[0087] Furthermore, the support structure 1 is fixedly connected to the internal cross beam 4 of the power battery. Meanwhile, the first end and the second end of the support structure 1 are respectively abutted against the lower shell 5 and the upper shell 6 of the power battery, which can improve the stability of the internal structure of the power battery.

[0088] The first connection structure 2 realizes a stable connection between the lower shell 5 and the support structure 1, and the second connection structure 3 realizes a stable connection between the upper shell 6 and the support structure 1 and the vehicle body beam 7. Thus, the structural strength and assembly reliability of the power battery can be improved.

[0089] In one example, the power battery further includes an external beam 8, which may be located at the lower side of the lower shell 5. The first connection structure 2 includes a first connector 21 and a first fastener 22. The first end of the first connector 21 may abut against the first side of the external beam 8 of the power battery, the second end of the first connector 21 is adapted to pass through the second side of the external beam 8 and connect with the first end of the first fastener 22, and the second end of the first fastener 22 is adapted to pass through the inner side of the lower shell 5 and connect with the first end of the support structure 1. In addition, the first end of the first fastener 22 has a third limiting structure 221, which is adapted to abut against the outer side of the lower shell 5 and the second side of the external beam 8.

[0090] As described above, the second connecting member 31 and the second fastener 32 of the second connecting structure 3 can both have high structural strength, and the connection between the upper shell 6, the vehicle body beam 7 and the second support member 12 is relatively stable, thereby improving the structural strength of the power battery.

[0091] In one example, the cross section of the vehicle body beam 7 may be in the shape of a Japanese scorpion.

[0092] This embodiment further provides a vehicle, which includes a vehicle body beam 7 and any power battery as described in the second aspect, and the vehicle body beam 7 is fixedly connected to the second connecting structure 3.

[0093] In the disclosed embodiment, the lengths of the support structure 1, the first connection structure 2 and the second connection structure 3 can be relatively short compared to long bolts, which reduces the manufacturing difficulty and makes it easy to ensure strength.

[0094] Furthermore, the support structure 1 is fixedly connected to the internal cross beam 4 of the power battery. Meanwhile, the first end and the second end of the support structure 1 are respectively abutted against the lower shell 5 and the upper shell 6 of the power battery, which can improve the stability of the internal structure of the power battery.

[0095] The first connection structure 2 realizes a stable connection between the lower shell 5 and the support structure 1, and the second connection structure 3 realizes a stable connection between the upper shell 6 and the support structure 1 and the vehicle body beam 7. Thus, the structural strength and assembly reliability of the power battery can be improved.

[0096] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0097] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A power battery hanging point structure, characterized in that: The power battery hanging point structure comprises a supporting structure (1), a first connecting structure (2) and a second connecting structure (3); The support structure (1) is suitable for penetrating the internal cross beam (4) of the power battery and being fixedly connected to the internal cross beam (4), and the first end of the support structure (1) is suitable for abutting against the inner side of the lower shell (5) of the power battery, and the second end of the support structure (1) is suitable for abutting against the inner side of the upper shell (6) of the power battery; The first connecting structure (2) is suitable for abutting against the outer side of the lower shell (5) and passing through the inner side of the lower shell (5) to be connected with the first end of the supporting structure (1); The second connection structure (3) is suitable for being connected to a vehicle body beam (7), and the second connection structure (3) is also suitable for being pressed against the outer side of the upper shell (6) and passing through the inner side of the upper shell (6) to be connected to the second end of the support structure (1).

2. The power battery hanging point structure according to claim 1, characterized in that: The support structure (1) comprises a first support member (11) and a second support member (12); The first end of the first support member (11) is suitable for being located on the first side of the internal cross beam (4) and abutting against the inner side of the lower shell (5), and connected to the first connection structure (2); the second end of the first support member (11) is suitable for passing through the second side of the internal cross beam (4) and connecting to the first end of the second support member (12); the second end of the second support member (12) is suitable for abutting against the inner side of the upper shell (6), and connected to the second connection structure (3); The first end of the first support member (11) has a first limiting structure (111), and the first limiting structure (111) is suitable for abutting against the first side of the internal beam (4); the first end of the second support member (12) has a second limiting structure (121), and the second limiting structure (121) is suitable for abutting against the second side of the internal beam (4).

3. The power battery hanging point structure according to claim 2, characterized in that: The second support member (12) is rod-shaped, the first end of the second support member (12) has a first connecting hole (122), the second end of the second support member (12) has a second connecting hole (123), the second end of the first support member (11) extends into the first connecting hole (122) to be connected to the second support member (12), and the first connecting structure (2) extends into the second connecting hole (123) to be connected to the second support member (12); Wherein, the diameters of the first end and the second end of the second support member (12) are both larger than the diameter of the middle portion of the second support member (12).

4. The power battery hanging point structure according to claim 3, characterized in that: The second end of the first support member (11) and the first connecting hole (122) have internal and external threads that match each other, and the first connecting structure (2) and the second connecting hole (123) have internal and external threads that match each other.

5. The power battery hanging point structure according to claim 4, characterized in that: The first support member (11), the second support member (12) and the first connecting structure (2) are all made of steel.

6. The power battery hanging point structure according to claim 1, characterized in that: The first connection structure (2) comprises a first connection member (21) and a first fastener (22); The first end of the first connecting member (21) is suitable for abutting against the first side of the external cross beam (8) of the power battery, the second end of the first connecting member (21) is suitable for passing through the second side of the external cross beam (8) to be connected to the first end of the first fastener (22), and the second end of the first fastener (22) is suitable for passing through the inner side of the lower shell (5) to be connected to the first end of the support structure (1); The first end of the first fastener (22) has a third limiting structure (221), and the third limiting structure (221) is suitable for abutting against the outer side of the lower shell (5) and the second side of the external cross beam (8).

7. The power battery hanging point structure according to claim 1, characterized in that: The second connection structure (3) comprises a second connection member (31) and a second fastener (32); The first end of the second connecting member (31) is suitable for abutting against the first side of the vehicle body beam (7), the second end of the second connecting member (31) is suitable for passing through the second side of the vehicle body beam (7) and connecting with the first end of the second fastener (32), and the second end of the second fastener (32) is suitable for passing through the inner side of the upper shell (6) and connecting with the second end of the support structure (1); The first end of the second fastener (32) has a fourth limiting structure (321), and the fourth limiting structure (321) is suitable for abutting against the outer side of the upper shell (6) and the second side of the vehicle body beam (7).

8. The power battery hanging point structure according to claim 1, characterized in that: The power battery hanging point structure further includes a first sealing ring (91) and a second sealing ring (92); The first sealing ring (91) is sandwiched between the first end of the supporting structure (1) and the lower shell (5), and surrounds the first connecting structure (2) and passes through the inner side of the lower shell (5); The second sealing ring (92) is sandwiched between the second end of the supporting structure (1) and the upper shell (6), and surrounds the second connecting structure (3) and passes through the inner side of the upper shell (6).

9. A power battery, characterized in that: The power battery comprises an internal crossbeam (4), a lower shell (5), an upper shell (6) and a power battery hanging point structure according to any one of claims 1 to 8, wherein the lower shell (5) and the upper shell (6) together form a battery pack inner cavity (10), and the internal crossbeam (4) is located in the battery pack inner cavity (10); The support structure (1) passes through an internal cross beam (4) of the power battery and is fixedly connected to the internal cross beam (4), and a first end of the support structure (1) abuts against an inner side of a lower shell (5) of the power battery, and a second end of the support structure (1) abuts against an inner side of an upper shell (6) of the power battery; The first connecting structure (2) abuts against the outer side of the lower shell (5) and passes through the inner side of the lower shell (5) to be connected to the first end of the supporting structure (1); The second connection structure (3) is suitable for connection with a vehicle body beam (7), and the second connection structure (3) also abuts against the outer side of the upper shell (6) and passes through the inner side of the upper shell (6) to connect with the second end of the support structure (1).

10. A vehicle, characterized in that: The vehicle comprises a vehicle body beam (7) and a power battery as claimed in claim 9, wherein the vehicle body beam (7) is connected to the second connecting structure (3).

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