Battery pack supporting frame and battery pack comprising same

Abstract

The utility model provides a battery pack support frame and a battery pack comprising the same, and the battery pack support frame comprises a support part used for bearing a first battery pack; the connecting part is arranged at the edge of the supporting part and is used for being connected to a battery pack outer frame; the connecting part is of an L-shaped structure and comprises a connecting folded edge and an overlapping edge which are connected in sequence, an included angle is formed between the connecting folded edge and the overlapping edge, the connecting folded edge is connected with the supporting part, and the overlapping edge is used for being connected to an outer frame of the battery pack; the supporting part comprises a supporting frame body and a first reinforcing beam, and the two ends of the first reinforcing beam are connected with the supporting frame body. According to the battery pack, the supporting part is arranged to support the added first battery pack, the first battery pack is used for increasing the overall capacity of the battery pack, the first battery pack is stably borne through the supporting part while the capacity of the battery pack is expanded, the use safety of the battery pack after overall capacity expansion is improved, and the connecting part is used for connecting the supporting part to the outer frame of the battery pack; and the overall structure of the expanded battery pack is more stable.

Description

[0001] This application claims the priority of Chinese utility model patent application CN2022236100623, filed on December 30, 2022, and the priority of Chinese invention patent application CN2022117348651, filed on December 30, 2022. This application cites the full text of the above Chinese patent application. Technical Field

[0002] The utility model relates to a battery pack support frame and a battery pack comprising the same. Background Art

[0003] At present, for electric vehicles, the battery pack and the body of the electric vehicle are generally connected in a fixed manner, and the electric vehicle replenishes energy by charging; alternatively, the battery pack and the body of the electric vehicle can be connected in a quick-change manner, and the electric vehicle replenishes energy by quickly replacing the battery pack. Since the charging method is time-consuming, the quick-change method is relatively more convenient and is increasingly valued. However, for electric vehicles with quick-change energy replenishment, the capacity of the battery pack is always the focus of attention. The battery pack generally expands the battery capacity by increasing the number of cells in the battery pack. As the number of cells increases, the size of the battery pack also increases.

[0004] This structure will increase the gravity on the battery pack holder or bracket that supports the battery pack. When the body distortion caused by turning or bumping during the driving of the electric vehicle is transmitted to the battery pack, it will affect the connection between the battery pack and the battery pack holder or bracket. In particular, when the size of the battery pack increases, the battery pack holder or bracket will be damaged due to excessive gravity. In severe cases, the battery cells will lose their position limit, causing the battery pack to deform, crack or even break, affecting the performance of the battery pack and even causing a vehicle safety accident. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that after the capacity of the battery pack is expanded, the battery pack bracket or support that carries the battery pack cannot stably carry the load due to the increased gravity of the battery pack, and a battery pack support frame and a battery pack comprising the same are provided.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A battery pack support frame, comprising:

[0008] A support portion, the support portion being used to support the first battery pack unit;

[0009] The connecting portion is arranged at the edge of the supporting portion and is used for connecting to the outer frame of the battery pack.

[0010] In the above-mentioned structural arrangement, the support portion is used to carry the first battery pack unit, and the first battery pack unit is used to increase the capacity of the battery pack. The support portion improves the connection stability of the entire battery pack after the first battery pack unit is added, and prevents the first battery pack unit from being separated from the entire battery pack. The connecting portion is arranged at the edge of the support portion and is used to connect the support portion to the outer frame of the battery pack to form a whole. The support portion is connected to the outer frame through the connecting portion so that the support portion can be detachably connected inside the battery pack. Accordingly, the battery pack can reduce or increase the number of battery cells in the battery pack as required. The connecting portion improves the installation convenience of the support portion and the outer frame. The connecting portion cooperates with the support portion to improve the overall assembly efficiency of the battery pack while increasing the battery capacity.

[0011] Preferably, the connecting portion is an L-shaped structure, including a connecting folded edge and an overlapping edge connected in sequence, wherein the connecting folded edge and the overlapping edge are arranged at an angle, wherein the connecting folded edge is connected to the supporting portion, and the overlapping edge is used to connect to the outer frame of the battery pack.

[0012] The above-mentioned structural arrangement realizes the connection between the support part and the outer frame of the battery pack by cooperating with the overlapping edge and the connecting folded edge. The overlapping edge and the connecting folded edge jointly bear the gravity of the first battery pack unit and the support part. The space occupied by the connecting part is reduced by connecting the folded edge and the overlapping edge, which facilitates to reduce the overall size of the battery pack and reduce manufacturing costs.

[0013] Preferably, the connecting fold includes a first connecting portion and a second connecting portion arranged at an angle, the first connecting portion is connected to the bottom of the supporting portion, the second connecting portion is connected to the overlapping edge, and the first connecting portion, the second connecting portion and the overlapping edge are arranged in a Z shape.

[0014] In the above-mentioned structural arrangement, the first connecting portion and the second connecting portion are arranged at an angle, which can reduce the lateral space occupied by the connecting fold on the supporting portion, ensure the size of the supporting portion, that is, ensure the capacity of the first battery pack unit, achieve stable connection and improve the space utilization of the battery pack.

[0015] Preferably, the connecting portion further comprises a first limiting folded edge, the first limiting folded edge is connected to the overlapping edge, and the first limiting folded edge, the overlapping edge and the connecting folded edge form an inverted U shape;

[0016] Alternatively, the connecting portion further includes a second limiting folded edge, and two side edges of the second limiting folded edge are respectively connected to the overlapping edge and the connecting folded edge.

[0017] In the above-mentioned structural arrangement, the first limiting folded edge and the connecting folded edge are correspondingly arranged on both sides of the connection point of the outer frame. The first limiting folded edge and the connecting folded edge cooperate with each other to improve the connection accuracy when the connecting part is connected to the outer frame. At the same time, after the connection, the connecting part will not shake left and right, thereby improving the stability of the supporting part after being connected to the outer frame; or the two side edges of the second limiting folded edge are respectively connected to the overlapping edge and the connecting folded edge, so that the two ends of the overlapping edge and the connecting folded edge are more firmly connected to the connecting base of the outer frame.

[0018] Preferably, the number of the connecting parts is two, the two connecting parts are integrally arranged, and an avoidance groove is formed between the overlapping edges of the two connecting parts, and the avoidance groove is used to avoid the unlocking connecting rod.

[0019] The above structure is set up, and the two connecting parts are set in one piece, which not only increases the connection strength, but also facilitates processing and manufacturing. An avoidance groove is formed between the overlapping edges of the connecting parts, which facilitates the unlocking connecting rod to pass through the avoidance groove to lock or unlock the locking mechanism, and also saves installation and operation space.

[0020] Preferably, the overlapping edge is provided with a first threaded hole for a fastener to pass through so as to be threadedly connected to the outer frame of the battery pack.

[0021] The above-mentioned structural arrangement further improves the stability of the connection between the connecting portion and the outer frame by overlapping the overlapping edges with the outer frame and screwing the overlapping edges with the outer frame, and improves the setting accuracy of the supporting portion by screwing, thereby improving the setting accuracy of the first battery pack unit.

[0022] Preferably, the battery pack support frame further comprises a through hole provided on the support portion, a second threaded hole is provided on the connecting fold, and the connecting fold is threadedly connected to the support portion through the second threaded hole and the through hole;

[0023] And / or the battery pack support also includes a threaded sleeve arranged on the support portion, the threaded sleeve is connected to the second threaded hole on the connecting flange, and the connecting flange is threadedly connected to the support portion through the second threaded hole and the threaded sleeve.

[0024] In the above-mentioned structural arrangement, the through hole is connected to the second threaded hole, the through hole passes through the supporting part and improves the connection stability between the connecting part and the supporting part when connected with the connecting fold. At the same time, by setting the through hole, when the supporting part and the connecting part are screwed together, the bolt is already positioned when entering the through hole. The positioned bolt can quickly enter the second threaded hole and realize screw connection when the connecting fold is connected, thereby improving the installation efficiency and accuracy. Similarly, a threaded sleeve can also be provided, and the threaded sleeve also cooperates with the second threaded hole and the supporting part, and its purpose is also to improve the installation efficiency and accuracy.

[0025] Preferably, the connecting portion further includes a guiding portion, the guiding portion is located on one side or both sides of the connecting portion facing the outer frame of the battery pack, the guiding portion includes a guiding surface, and the guiding surface is an arcuate surface or an inclined surface from bottom to top.

[0026] In the above-mentioned structural arrangement, the guide part is located on the connecting part and corresponds to the outer frame, so that the connecting part can achieve the connection between the connecting part and the outer frame more quickly and accurately when connected to the outer frame, thereby improving the setting accuracy of the support part; when the guide surface of the guide part is an arc surface, the processing is simpler and the connecting part is avoided from being scratched when installing or disassembling the support part; the positioning accuracy of the support part when it is set on the outer frame is improved by the guide part, and the guide part can also cooperate with the limit folding edge to further improve the positioning accuracy of the support part when it is set above the outer frame.

[0027] Preferably, the connecting portion is arranged in the length direction and / or width direction of the supporting portion.

[0028] The above-mentioned structural arrangement, by arranging the connecting part along the length direction and / or width direction of the supporting part, can improve the stable connection of the supporting part, and at the same time, can limit the supporting part along this direction after the supporting part is connected to the outer frame, thereby preventing the supporting part from moving after being connected to the outer frame.

[0029] Preferably, the plurality of connecting portions are sequentially spaced apart along the length direction and / or width direction of the supporting portion.

[0030] The above-mentioned structural arrangement, by arranging a plurality of connecting parts along the length direction and / or width direction of the supporting part, can further improve the stable connection of the supporting part, and can also improve the limiting condition of the supporting part along this direction after the supporting part is connected to the outer frame, thereby preventing the supporting part from moving after being connected to the outer frame.

[0031] Preferably, the support portion includes a support frame and a first reinforcement beam, and two ends of the first reinforcement beam are connected to the support frame.

[0032] In the above-mentioned structural arrangement, the supporting frame is arranged corresponding to the edge of the first battery pack unit, and the first reinforcing beam is arranged corresponding to the bottom of the first battery pack unit. The bottom of the first battery pack unit is supported by the first reinforcing beam, and the first battery pack unit is supported on the supporting part by connecting the supporting frame and the first reinforcing beam, thereby improving the installation stability of the first battery pack unit.

[0033] Preferably, the support portion further includes a second reinforcing beam, both ends of which are connected to the support frame and have an extension direction different from that of the first reinforcing beam, and the second reinforcing beam is symmetrically arranged in the length direction or the width direction within the support frame.

[0034] In the above-mentioned structural arrangement, the second reinforcing beam is connected to the supporting frame, and the extension direction of the second reinforcing beam is different from that of the first reinforcing beam. Therefore, the second reinforcing beam and the first reinforcing beam are combined in the supporting frame to support the corresponding first battery pack unit. By adding the second reinforcing beam, the bearing capacity of the support part for the bottom of the first battery pack unit is increased, so that a larger first battery pack unit can be carried, thereby improving the overall capacity of the battery pack.

[0035] Preferably, the first reinforcing beam further includes wing plate structures located on both sides, and the wing plate structures are suitable for being connected to the second reinforcing beam, or to a supporting frame intersecting with the first reinforcing beam.

[0036] With the above-mentioned structural arrangement, the wing plate structure can further improve the connection strength between the first reinforcing beam and the supporting frame, thereby enhancing the bearing capacity of the supporting portion for the first battery pack unit and improving the installation stability of the first battery pack unit.

[0037] Preferably, the battery pack support frame further includes a mounting portion, wherein the mounting portion is disposed on the support portion and is used for connecting with the first battery pack unit.

[0038] In the above-mentioned structural arrangement, the mounting portion is located on the supporting portion and at the bottom of the first battery pack unit, is connected to the bottom of the first battery pack unit through the mounting portion, and limits the bottom of the first battery pack unit to prevent the first battery pack unit from loosening after installation, so as to improve the stability of the first battery pack unit and further improve the stability of the battery pack as a whole.

[0039] Preferably, the mounting portion includes a third threaded hole disposed on the supporting portion, and the third threaded hole is disposed corresponding to the first battery pack unit so as to be threadedly connected to the first battery pack unit.

[0040] In the above structure, the third threaded hole is arranged corresponding to the bottom of the first battery pack unit, the bolt extends into the third threaded hole and realizes the threaded connection between the first battery pack unit and the support part, thereby realizing a stable connection between the first battery pack unit and the support part.

[0041] Preferably, the mounting portion further includes a gasket, and the gasket is arranged corresponding to the third threaded hole.

[0042] In the above-mentioned structural arrangement, the gasket is arranged corresponding to the third threaded hole on the support part. When the first battery pack unit is screwed to the support part, the gasket is arranged to cooperate with the bolt so that the contact area between the bolt and the support part is increased when the support part is screwed to the first battery pack unit, thereby improving the stability of the connection between the first battery pack unit and the support part.

[0043] Preferably, the connecting portion is a connecting plate arranged perpendicular to the supporting portion, the connecting plate is connected to a side portion of the supporting portion, and extends downward from the side portion in a trapezoidal shape.

[0044] In the above-mentioned structural arrangement, the connecting plate is vertically connected to the side of the support part. The connection between the connecting plate and the outer frame reduces the occupation of the lateral space of the support part, thereby improving space utilization. The connecting plate is arranged in a trapezoidal shape. While ensuring the connection strength at the connection between the connecting plate and the outer frame, the trapezoidal connecting plate can be more quickly extended into the gap between the outer frame and the support part when connected to the outer frame, thereby improving installation efficiency.

[0045] Preferably, the battery pack support frame further includes a hoisting portion, which is arranged at an edge of the support portion and is used for hoisting the battery pack support frame.

[0046] The above-mentioned structural arrangement, by arranging a lifting part on the battery pack support frame, the battery pack support frame can not only fix the upper battery module, but also can directly lift the battery pack through the battery pack support frame without disassembling the battery pack during maintenance and transportation, thereby realizing the function of transportation tooling, being simple and convenient to operate and improving the disassembly and assembly efficiency.

[0047] Preferably, the hanging portion is arranged in the length direction and / or width direction of the supporting portion.

[0048] The above structure is set up, and the hoisting part is set in the length direction of the support part, so that when hoisting, the components in the width direction can be avoided. When the hoisting part is set in the width direction of the support part, the components in the length direction can be avoided. When the hoisting part is set in both the length direction and the width direction of the support part, the force points of the support part can be multiplied and uniform, thereby improving the reliability of hoisting.

[0049] Preferably, the hanging part is arranged on the outside or inside of the supporting frame of the supporting part.

[0050] In the above structure, since the support frame has thickness, the hoisting part is arranged on the outside of the support frame of the support part, so that the hoisting part and the battery pack have a certain spacing distance, avoiding interference between the hook and the battery pack during hoisting. The hoisting part is arranged on the inside of the support frame of the support part, and the hoisting part will not affect or interfere with the connection between the connecting part and the outer frame of the battery pack.

[0051] Preferably, the plurality of hoisting portions are arranged in sequence and at intervals along the length direction and / or width direction of the support portion.

[0052] The above-mentioned structural arrangement enables the support part to be evenly stressed during hoisting, thus preventing the battery pack support frame from tipping over.

[0053] Preferably, the hoisting portion comprises a connecting edge and a hoisting edge which are connected in sequence, the connecting edge and the hoisting edge are arranged at an angle, wherein the connecting edge is connected to the supporting portion, and the hoisting edge is used for hoisting.

[0054] In the above-mentioned structural arrangement, the connecting edge and the lifting edge are arranged at an angle, which can reduce the lateral space occupied by the connecting edge for the support part, ensure the size of the support part, that is, ensure the capacity of the first battery pack unit, achieve stable connection and improve the space utilization of the battery pack.

[0055] Preferably, the connecting edge is a U-shaped structure, one end of the U-shaped structure is connected to the inner side wall of the supporting frame, and the other end of the U-shaped structure is connected to the hanging edge.

[0056] With the above-mentioned structural arrangement, the connecting edge of the U-shaped structure will not damage the structure of the supporting frame, and will also enhance the strength of the supporting frame and improve reliability.

[0057] Preferably, the lifting edge is provided with a lifting hole or a lifting groove for hanging.

[0058] Said structure is provided with a hoisting hole or a hoisting groove on the hoisting edge, so as to be convenient for hooking and hanging, and realizes quick hoisting. Of course, in order to prevent the hook from falling off in the hoisting groove, the opening of the hoisting groove is downward.

[0059] Preferably, a fixing hole is provided on the lifting edge, and the fixing hole is used to fix the upper skin, power wiring harness or cooling pipe of the first battery pack unit.

[0060] The above structural setting does not require the setting of other fixing structures. By setting fixing holes on the lifting edge, the upper skin, power harness or cooling pipe can be fixed on the lifting edge, thereby improving the fixing effect.

[0061] Preferably, the connecting portion is connected to the supporting portion through the connecting edge.

[0062] In the above-mentioned structural arrangement, the connecting edge is the part at the lower end of the lifting part, which is used to connect and fix the lifting part to the supporting part. The connecting part is used to connect the supporting part to the outer frame. The connecting part is connected to the supporting part through the connecting edge, and the lifting part is also connected to the supporting part through the connecting edge. The connecting edge is reused by the connecting part and the lifting part to simplify the structural arrangement and make the structure simple and compact.

[0063] Preferably, the connecting portion is connected to the bottom of the hanging edge, and the connecting portion extends in a direction away from the supporting portion.

[0064] In the above structure, the connection part is connected to the bottom of the hoisting edge, and the connection function of the connection part is not affected when the hoisting edge is used for hoisting. The connection part extends in a direction away from the support part, which is convenient for overlapping connection with the outer frame of the battery pack.

[0065] A battery pack, comprising:

[0066] a first battery pack unit;

[0067] a second battery pack unit;

[0068] an outer frame, wherein the outer frame is provided with a receiving area for receiving the second battery pack unit;

[0069] A battery pack support frame as described above; the battery pack support frame is arranged corresponding to the accommodating area, and carries the first battery pack unit above the second battery pack unit, and the connecting portion of the battery pack support frame is movably connected to the edge of the outer frame.

[0070] In the present solution, the battery pack achieves the expansion of the overall capacity of the battery pack by setting up a double-layer battery pack unit, that is, the first battery pack unit is set above the second battery pack unit, the second battery pack unit is supported by the accommodating area of ​​the outer frame, and the first battery pack unit is supported by the supporting part of the battery pack support frame, so as to achieve stable support for the battery pack while increasing the overall capacity of the battery pack, and the supporting part is movably connected to the outer frame through the connecting part, which improves the stability of the first battery pack unit while increasing the overall capacity of the battery pack, and improves the overall installation or disassembly efficiency of the battery pack, thereby improving the convenience of the battery pack during use.

[0071] Preferably, the accommodating area includes a central accommodating area and side accommodating areas located on both sides of the central accommodating area, and the central accommodating area is wider than the side accommodating area; the battery pack support frame is arranged corresponding to the accommodating area.

[0072] In the above-mentioned structural arrangement, three accommodating areas are arranged side by side in the outer frame, the sizes of the side accommodating areas on both sides are smaller than that of the middle accommodating area, the size of the middle accommodating area is increased and the capacity of the second battery pack unit that can be accommodated is increased accordingly, and the size of the support portion arranged corresponding to the middle accommodating area is increased accordingly, that is to say, the capacity of the first battery pack unit located above the middle accommodating area is increased accordingly, and the middle accommodating area can also be used to accommodate a high-voltage box to reduce the overall space requirement of the battery pack in the height direction.

[0073] Preferably, the connection portions between two adjacent battery pack support frames are staggered.

[0074] The above-mentioned structural arrangement and the staggered connection parts can reduce the lateral space occupied by the support parts when two adjacent connection parts are connected to the outer frame when the multiple support parts are arranged above the side accommodating area and the middle accommodating area, reasonably utilize the space above the accommodating area, and avoid interference between adjacent support parts when they are arranged.

[0075] Preferably, the connecting part includes a first connecting member and a second connecting member, the first connecting member has a connecting folded edge, an overlapping edge and a limiting folded edge connected in sequence, the second connecting member includes the connecting folded edge and the overlapping edge connected in sequence, and the first connecting member and the second connecting member between two adjacent battery pack support frames are alternately arranged.

[0076] The above-mentioned structural arrangement, by staggering the first connecting member and the second connecting member arranged on two adjacent supporting parts, avoids interference between the connecting parts of the two adjacent supporting parts when multiple supporting parts are arranged side by side, especially the interference between the limiting folded edge of the first connecting member and the overlapping edge or the connecting folded edge of the second connecting member, thereby improving the connection efficiency of the supporting part to the outer frame.

[0077] Preferably, a connection base cooperating with the connection portion is further provided above the accommodating area, and the connection base is connected to the edge of the outer frame.

[0078] In the above structure, the edge of the outer frame is provided with a connecting base for connecting with the connecting fold, the overlapping edge and the second limiting fold of the connecting part, and the connecting part cooperates with the connecting base to improve the stability of the supporting part when it is connected to the outer frame.

[0079] The positive progress effect of the utility model is that the utility model supports the added first battery pack unit by setting a support part, and the first battery pack unit is used to increase the overall capacity of the battery pack, that is, the battery pack is expanded. When the battery pack is expanded, the first battery pack unit is stably supported by the support part, so as to avoid the first battery pack unit of the expanded battery pack being loose or moving during the travel of the electric vehicle due to the lack of connection to the added first battery pack unit, thereby improving the safety of the battery pack after the overall expansion. The connection part is used to connect the support part to the outer frame of the battery pack to realize the connection with the outer frame while carrying the first battery pack unit, and the battery pack bracket can be detachably connected in the battery pack bracket, and the internal battery pack of the battery pack bracket can be increased or reduced according to the needs, so as to facilitate the installation or removal of the internal battery pack. The connection part is set at the edge of the support part to reduce the space occupied by the connection part to the support part, so that the size of the first battery pack unit connected to the support part is larger, and the capacity of the first battery pack unit can also be increased accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 This is a schematic diagram of the battery pack structure of an embodiment of the present utility model.

[0081] Figure 2 This is a schematic diagram of the positional relationship between the battery pack outer frame and the battery pack support frame according to an embodiment of the utility model.

[0082] Figure 3It is a schematic diagram of the supporting structure of a battery pack supporting frame according to an embodiment of the utility model.

[0083] Figure 4 It is a schematic diagram of the battery pack support frame structure corresponding to the two side accommodating areas of one embodiment of the utility model.

[0084] Figure 5 This is a schematic diagram of the battery pack support frame structure corresponding to the middle accommodating area of ​​one embodiment of the utility model.

[0085] Figure 6 This is a diagram showing the position relationship between the gasket and the support portion of an embodiment of the utility model.

[0086] Figure 7 This is a schematic diagram of the structure of the second connecting member according to an embodiment of the present utility model.

[0087] Figure 8 This is a schematic structural diagram of a first connecting member according to an embodiment of the utility model.

[0088] Fig. 9 It is a structural schematic diagram of a connecting folded edge of another embodiment of the utility model.

[0089] Fig.10 It is a schematic diagram of the connecting folding edge, the supporting portion and the vertical structure of another embodiment of the utility model.

[0090] Fig.11 It is a structural schematic diagram of a connecting portion of another embodiment of the utility model.

[0091] Fig.12 It is a structural schematic diagram of a connecting base according to another embodiment of the utility model.

[0092] Fig.13 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 1 (The lifting part is arranged on the outside of the supporting frame).

[0093] Fig.14 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 2 (The lifting part is arranged on the outside of the supporting frame).

[0094] Fig.15 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 3 (The lifting part is arranged on the outside of the supporting frame).

[0095] Fig.16 This is a schematic structural diagram of an embodiment of the utility model in which a connecting portion and a hoisting portion are integrally arranged.

[0096] Fig.17 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 4 (The hanging part is arranged on the inner side of the supporting frame).

[0097] Fig.18 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 5 (The hanging part is arranged on the inner side of the supporting frame).

[0098] Fig.19 This is a schematic structural diagram of two connecting parts in one embodiment of the utility model.

[0099] Fig. 20 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 6 (The hanging part is arranged on the inner side of the supporting frame).

[0100] Fig.21 The structure of the battery pack support frame of one embodiment of the utility model is shown in FIG. Figure 7 (The hanging part is arranged on the inner side of the supporting frame).

[0101] Description of reference numerals:

[0102] Support part 1

[0103] Support frame 11

[0104] First reinforcement beam 12

[0105] Second reinforcement beam 13

[0106] Wing structure 14

[0107] Connection 2

[0108] Connecting hem 21

[0109] First connection portion 210

[0110] The second connection portion 211

[0111] Overlap edge 22

[0112] The first limit folding edge 23

[0113] Second limit folding edge 24

[0114] Connecting plate 25

[0115] Via 3

[0116] Guide 4

[0117] Guide surface 41

[0118] Installation part 5

[0119] Gasket 51

[0120] The first battery pack unit 10

[0121] The second battery pack unit 20

[0122] First threaded hole 30

[0123] Second threaded hole 40

[0124] The third threaded hole 50

[0125] First connecting member 60

[0126] The second connecting member 70

[0127] Battery Pack 100

[0128] Outer frame 200

[0129] Frame beam 201

[0130] Accommodation area 202

[0131] Connecting base 203

[0132] Central Accommodation Area 2021

[0133] Side storage area 2022

[0134] Hoisting Department 80

[0135] Connecting edge 81

[0136] Lifting side 82

[0137] Lifting hole 821

[0138] Fixing hole 822

[0139] Avoidance slot 90

[0140] Length direction 300

[0141] Width direction 400 DETAILED DESCRIPTION

[0142] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0143] Example 1

[0144] This embodiment provides a battery pack support frame that can be used in specific structures such as Figure 1The battery pack 100 shown has an outer frame 200 for carrying the second battery pack unit 20. The outer frame 200 includes frame beams 201 arranged along the length and width directions of the second battery pack unit 20. The frame beams 201 are used to enclose and form a receiving area 202 for receiving the second battery pack unit 20. A locking mechanism is arranged on the multiple frame beams 201 of the outer frame 200. The locking mechanism is used to connect with the beam of the electric vehicle and realize the rapid replacement of the battery pack 100, so that the replacement of the battery pack 100 is faster and more convenient. In this embodiment, the electric vehicle is a heavy truck or a light truck. Of course, in other embodiments, this solution can also be applied to passenger vehicles such as sedans.

[0145] The specific structure of the battery pack support frame of this embodiment is as follows Figure 2 , Figure 3 and Figure 6 As shown, it includes a support portion 1 for carrying a first battery pack unit 10; the support portion 1 is a frame structure formed by welding profiles, and is located on the outer frame 200. The support portion 1 is correspondingly arranged above the second battery pack unit 20 accommodated in the accommodation area 202. Specifically, in one embodiment, the support portion 1 may be located in the accommodation area 202, and the upper surface of the support portion 1 may be arranged flush with the frame beam 201 of the outer frame 200 along the height direction of the battery pack 100; in another embodiment, the upper surface of the support portion 1 may be arranged higher than the frame beam 201 along the height direction of the battery pack 100, and the first battery pack unit 10 is carried above the second battery pack unit 20 by the support portion 1, and the first battery pack unit 10 and the second battery pack unit 20 are combined into the battery pack 100 as a whole. Among them, the first battery pack unit 10 is used to increase the capacity of the battery pack 100, realize the capacity expansion of the battery pack 100, improve the endurance of the battery pack 100, and at the same time improve the connection stability of the battery pack 100 as a whole after the first battery pack unit 10 is added through the support part 1, so as to prevent the first battery pack unit 10 from being separated from the battery pack 100 as a whole. In this embodiment, the battery pack support frame also includes a connecting part 2, which is arranged at the edge of the supporting part 1 and is used to connect the supporting part 1 to the outer frame 200. The connecting part 2 can be arranged on the side wall or the lower surface of the supporting part 1, and is used to connect with the frame beam 201 of the outer frame 200, so that the supporting part 1 forms a partition arranged between the first battery pack unit 10 and the second battery pack unit 20. The connecting part 2 is arranged at the edge of the supporting part 1 and is used to connect the supporting part 1 with the outer frame 200 to form a whole. The connecting part 2 improves the installation convenience of the supporting part 1 and the outer frame 200, and provides a bearing function for the first battery pack unit 10, thereby improving the capacity of the battery pack 100 and also improving the overall assembly efficiency of the battery pack 100. As for the material of the support part 1, other materials may also be selected according to actual needs, such as plates, square tubes, and are not limited to profiles.

[0146] Furthermore, the connecting portion 2 is overlapped on the outer frame 200, and one end of the connecting portion 2 connected to the outer frame 200 is overlapped on the upper surface of the frame beam 201 of the outer frame 200. The first battery pack unit 10 is arranged on the support portion 1, and a downward gravity is applied to the support portion 1 along the height direction of the battery pack 100. By overlapping one end of the connecting portion 2 on the upper surface of the frame beam 201, the support portion 1 and the connecting portion 2 cooperate with each other and carry the first battery pack unit 10 when the first battery pack unit 10 is arranged on the support portion 1, thereby preventing the first battery pack unit 10 from being separated from the battery pack 100 as a whole due to its own gravity or the bumps during the travel of the electric vehicle and the torque generated by the turning of the electric vehicle, thereby improving the safety of the battery pack 100. The connecting portion 2 enables the supporting portion 1 disposed in the battery pack 100 to be detachably connected to the outer frame 200, and by increasing or decreasing the number of connecting portions 2 and supporting portions 1, the battery pack 100 can increase or decrease the number of first battery pack units 10 in the battery pack 100 according to actual needs, thereby meeting the design requirements of battery packs 100 of different sizes / capacities.

[0147] Alternatively, in another embodiment, the connection part 2 connected to the rotating side of the support part 1 is hinged to the outer frame 200, and the connection part 2 connected to the free side of the support part 1 is overlapped on the upper surface of the frame beam 201. By rotating the rotating side of the support part 1 and overlapping the free side of the support part 1 on the outer frame 200, the first battery pack unit 10 is arranged above the second battery pack unit 20 and the first battery pack unit 10 is effectively supported, so as to prevent the first battery pack unit 10 from being separated from the battery pack 100 due to its own gravity or the torque generated by the turning of the electric vehicle during the travel of the electric vehicle, thereby improving the safety of the battery pack 100. The specific structure of the above-mentioned hinge adopts the hinge structure in the prior art, which will not be described in detail here.

[0148] Among them, Figure 7 , Figure 8As shown, the connecting portion 2 is an L-shaped structure, including a connecting fold 21 and an overlapping edge 22 connected in sequence, the connecting fold and the overlapping edge are arranged at an angle, the connecting portion 2 is a sheet metal part, and one end of the connecting fold 21 of the connecting portion 2 is located on the lower surface of the supporting portion 1 and is connected to the supporting portion 1, and the other end of the connecting fold 21 is connected to the overlapping edge 22 and forms an inverted "L"-shaped structure with the overlapping edge 22. Compared with the horizontal or inclined setting of the connection between the connecting fold 21 and the overlapping edge 22, the connecting portion 2 of the connecting fold 21 and the overlapping edge 22 arranged in an inverted "L"-shaped structure can reduce The support portion 1 and the connection portion 2 occupy less lateral space when they are located on the outer frame 200. That is to say, the connection fold 21 and the overlap edge 22 arranged in the inverted "L"-shaped structure occupy less lateral space when they are arranged on the outer frame 200. The support portion 1 can increase its design size accordingly and the capacity of the first battery pack unit 10 can be increased, or the size of the support portion 1 can be reduced accordingly. While increasing the capacity of the battery pack 100 through the first battery pack unit 10, reducing the size of the support portion 1 can reduce the manufacturing cost of the battery pack 100. The lap edge 22 is located on the upper surface of the frame beam 201 of the outer frame 200. The connection folded edge 21 and the lap edge 22 in an inverted "L" structure are used to bear the gravity of the first battery pack unit 10 along the height direction of the battery pack 100. The lap edge 22 cooperates with the connection folded edge 21 to achieve the connection between the support part 1 and the outer frame 200. The lap edge 22 and the connection folded edge 21 jointly bear the gravity of the first battery pack unit 10 and the support part 1, thereby improving the connection stability of the battery pack 100 after adding the first battery pack unit 10. Among them, the lap edge 22 overlaps the outer frame 200 to achieve a smooth connection between the support part 1 and the outer frame 200.

[0149] In other embodiments, Fig. 9 and Fig.10 As shown, in the connecting portion 2 provided at one or both ends in the length direction of the supporting portion 1, the connecting folded edge 21 and the overlapping edge 22 of the connecting portion 2 are plates which are arranged throughout the length and have the same size as the width direction of the supporting portion 1, so that when both the overlapping edge 22 and the connecting folded edge 21 are in contact with the edge of the supporting portion 1 and the frame beam 201 of the outer frame 200, the carrying capacity of the battery pack support frame for the first battery pack unit 10 and the overall structural stability of the battery pack 100 are improved by increasing the contact area with the edge of the supporting portion 1 and the frame beam 201.

[0150] Of course, the connection part 2 provided on the support part 1 near the electrical connection end of the battery pack 100 can also be Fig.11There are two connecting parts 2 spaced apart at the ends of the supporting part 1, and a space is reserved between two adjacent connecting parts 2 for accommodating the electrical connection wires and power lines connected to the electrical connection ends of the battery pack 100, or the electrical connection wires and power lines are wound around the two connecting parts 2 spaced apart, and the positions of the electrical connection wires and the power lines in the battery pack 100 are positioned through the connecting parts 2.

[0151] In another embodiment, the connecting fold 21 includes a first connecting portion 210 and a second connecting portion 211 which are arranged at an angle, wherein the first connecting portion is connected to the bottom of the supporting portion, and the second connecting portion is connected to the overlapping edge, and the first connecting portion, the second connecting portion, and the overlapping edge are arranged in a Z shape, and the first connecting portion 210 and the second connecting portion 211 can be arranged vertically. The vertical arrangement of the first connecting portion 210 and the second connecting portion 211 can reduce the lateral space occupied by the connecting fold 21 for the supporting portion 1, the first connecting portion 210 is connected to the bottom of the supporting portion 1, and the second connecting portion 211 is connected to the overlapping edge 22, and the first connecting portion 210, the second connecting portion 211 and the overlapping edge 22 form a "Z"-shaped structure, the first connecting portion 210 is used to bear the gravity of the supporting portion 1 and the first battery pack unit 10, and the overlapping edge 22 is used to arrange the supporting portion 1 and the first battery pack unit 10 on the outer frame 200, so as to achieve a stable connection while improving the space utilization of the battery pack 100.

[0152] In addition, if Figure 8 As shown, in other embodiments, the connection part 2 may also be provided with a first limiting fold 23, the first limiting fold 23 is connected to the lap edge 22, the first limiting fold 23, the lap edge and the connection fold 21 form an inverted U-shaped structure, the inverted U-shaped structure is clamped on the frame beam 201 of the outer frame 200, and the first limiting fold 23 and the second connection part 211 are respectively located on both sides of the frame beam 201. By providing the inverted U-shaped structure formed by the first limiting fold 23 and the second connection part 211, when the connection part 2 is connected to the outer frame 200, the first limiting fold 23 can limit the support part 1, and prevent the support part 1 from following the shaking caused by the bumps or shaking of the electric vehicle when the support part 1 is set on the outer frame 200, and improve the stability of the support part 1 after being connected to the outer frame 200. At the same time, the connection accuracy of the connection part 2 when connected to the outer frame 200 is improved by the cooperation of the first limiting fold 23 and the connection fold 21, that is, the connection accuracy of the support part 1 is improved. Accordingly, the improvement of the connection accuracy when installing the support part 1 can improve the installation efficiency of the battery pack support frame. The connection fold 21, the overlap edge 22 and the first limit fold 23 in the connection part 2 can be integrally formed by stamping, which is a prior art and will not be described in detail here.

[0153] like Fig. 9 , Fig.12As shown, in another embodiment, the connection portion 2 may also be provided with a second limiting fold 24, the connection fold 21 is connected to the edge of the support portion 1, the overlap edge 22 is connected to the connection fold 21, and the overlap edge 22 is vertically arranged with the second connection portion 211 of the connection fold 21, and the two sides of the second limiting fold 24 are respectively connected to the connection fold 21 and the overlap edge 22, the second limiting fold 24 is arranged in a triangular plate, one side of which is connected to the connection fold 21, and the other side is connected to the overlap edge 22, and the hypotenuse of the triangular plate is used to support the gravity of the support portion 1 and the first battery pack unit 10 in the vertical direction of the connection fold 21 and the overlap edge 22. Fig.12 As shown, a connecting base 203 is provided on the edge of the outer frame 200 close to the supporting portion 1. The connecting base 203 is provided along the length and / or width direction of the outer frame 200 and is a rectangular protrusion. When the overlapping edge 22 is overlapped or screwed on the connecting base 203, the second limiting folded edge 24 is located at both ends of the connecting base 203. The second limiting folded edge 24 limits the position of the connecting portion 2 when it is connected to the connecting base 203 on the outer frame 200, thereby avoiding the supporting portion 1 from shaking due to the bumps or shaking caused by the movement of the electric vehicle when the supporting portion 1 is arranged on the outer frame 200, thereby improving the stability of the supporting portion 1 after being connected to the outer frame 200, and improving the connection accuracy between the connecting portion 2 and the outer frame 200, thereby improving the connection accuracy between the first battery pack unit 10 and the battery pack 100 as a whole.

[0154] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, in the present embodiment, the overlapping edge 22 is screwed to the upper surface of the frame beam 201 of the outer frame 200. When the overlapping edge 22 overlaps the outer frame 200, the stability of the connection between the connecting portion 2 and the outer frame 200 is further improved by screwing the overlapping edge 22 to the outer frame 200. The overlapping edge 22 is provided with a first threaded hole 30 for a fastener to pass through so as to be screwed to the outer frame of the battery pack. Preferably, a first threaded hole 30 is provided in the middle area of ​​the corresponding frame beam 201, which can penetrate the frame beam 201 to achieve a stable connection between the overlapping edge 22 and the frame beam 201, and the position of the support portion 1 on the outer frame 200 is limited by screwing, thereby reducing the setting of the limiting structure, correspondingly reducing the manufacturing cost, and improving the setting accuracy of the support portion 1, thereby improving the setting accuracy of the first battery pack unit 10.

[0155] Furthermore, in some embodiments, the frame beam 201 is provided with a press nut at a position corresponding to the first threaded hole 30. Preferably, a countersunk hole is provided on the side of the first threaded hole 30 facing the press nut to avoid the press nut; or in other embodiments, the inner diameter of the first threaded hole 30 is larger than the outer diameter of the press nut to contain the press nut. The setting of the press nut allows the overlap edge 22 to be screwed and locked with the frame beam 201.

[0156] Furthermore, the battery pack support frame also includes a through hole 3 arranged on the support part 1, and a second threaded hole is provided on the connecting side, and the connecting flange is threadedly connected to the support part through the second threaded hole and the through hole; the through hole 3 is arranged corresponding to the second threaded hole 40 arranged on the connecting flange 21, and the through hole 3 passes through the support part 1 so that when the support part 1 and the connecting flange 21 are screwed together, the bolt can extend into the through hole 3 and improve the connection stability between the support part 1 and the connecting part 2.

[0157] In other implementations of this embodiment, a threaded sleeve may also be provided on the support portion 1, and the connecting flange is threadedly connected to the support portion through the second threaded hole and the threaded sleeve. The threaded sleeve also penetrates the support portion 1 and is provided with an internal thread for threading. The threaded sleeve is provided corresponding to the second threaded hole 40, and when the connecting flange 21 is threadedly connected to the support portion 1, the bolt is also threadedly connected to the threaded sleeve. The connection stability between the connecting portion 2 and the support portion 1 is improved by the threaded sleeve when connected to the connecting flange 21. At the same time, by providing the threaded sleeve, when the support portion 1 is threadedly connected to the connecting portion 2, the bolt is already positioned when entering the threaded sleeve. The positioned bolt can accurately enter the second threaded hole 40 and achieve threading when being threadedly connected to the second threaded hole 40 of the connecting flange 21, thereby improving the installation efficiency and accuracy.

[0158] like Figure 7 , Figure 8 As shown, in other embodiments, the connecting portion 2 also includes a guiding portion 4, the guiding portion 4 includes a guiding surface 41, the guiding surface 41 is arranged on the second connecting portion 211 connecting the folded edge 21 and corresponds to the side of the frame beam 201, the guiding surface 41 is an inclined surface arranged from bottom to top, and the guiding surface 41 is used to contact the side of the frame beam 201 when the connecting portion 2 is overlapped on the outer frame 200, and make the connecting portion 2 overlap on the frame beam 201 more smoothly and the overlapping position more accurate, while improving the setting accuracy of the support portion 1.

[0159] In another embodiment, the guide surface 41 is an arcuate surface, which includes not only an inclined surface arranged from bottom to top, but also an inclined surface arranged from top to bottom, and the two inclined surfaces have an arc transition. The inclined surface arranged from bottom to top is used to improve the overlapping accuracy when the connecting part 2 is overlapped on the outer frame 200, and the inclined surface arranged from top to bottom is used to prevent the guide part 4 on the connecting part 2 from scratching the frame beam 201 when lifting the supporting part 1 when removing the supporting part 1 from the outer frame 200. In addition, when the guide surface 41 is an arcuate surface, it is more in line with the processing logic, making the processing simpler.

[0160] Among them, when the connecting part 2 is provided with a first limiting folded edge 23, the guide part 4 can also be provided on the first limiting folded edge 23 and correspond to the side of the frame beam 201, that is, the guide part 4 is simultaneously provided on the second connecting part 211 and the first limiting folded edge 23 and corresponds to both sides of the frame beam 201. While improving the positioning accuracy of the support part 1 when it is provided on the outer frame 200, the guide part 4 is located on both sides of the frame beam 201, which can further improve the positioning accuracy of the support part 1 when it is provided above the outer frame 200.

[0161] like Figure 4 and Figure 5 As shown, the connection part 2 is arranged at the edge of the support part 1 and along the width direction of the support part 1. A plurality of connection parts 2 are arranged and are spaced apart from each other. The plurality of connection parts 2 arranged in the width direction on one side of the support part 1 are preset with an avoidance interval. That is to say, the connection part 2 located on one side in the width direction of the support part 1 is spaced a certain distance from the connection between the length direction and the width direction of the support part 1. The distance is used for the passage of the electrical connection line or the power line connected to the first battery pack unit 10 or the second battery pack unit 20. The connection part 2 arranged in the width direction on the other side of the support part 1 does not need to be set with an avoidance interval.

[0162] In a preferred implementation of the present embodiment, the connecting portion 2 may also be arranged at intervals along the length direction of the supporting portion 1. While achieving a stable connection between the connecting portion 2 and the outer frame 200, after the connecting portion 2 is connected to the outer frame 200 along the length direction of the supporting portion 1, the connecting portion 2 may also limit the supporting portion 1 along this direction to prevent the supporting portion 1 from moving along this direction after the connection.

[0163] In another preferred implementation of the present embodiment, the connection parts 2 are arranged at intervals along the length direction and the width direction of the support part 1. While retaining the avoidance interval, adding the connection parts 2 arranged along the length direction can further improve the connection stability after the support part 1 is connected to the outer frame 200, and improve the carrying capacity of the support part 1 for the first battery pack unit 10. It is suitable for the first battery pack unit 10 with a larger capacity, and accordingly the overall capacity of the battery pack 100 is improved.

[0164] At the same time, the support part 1 in this embodiment includes a support frame 11 and a first reinforcing beam 12. The support frame 11 is a rectangular frame. The support frame 11 includes a first frame arranged along the length direction and a second frame arranged along the width direction. The first frame and the second frame are connected end to end in sequence and enclosed to form the support frame 11. The middle area of ​​the support frame 11 corresponds to the first battery pack unit 10 and is used to carry the first battery pack unit 10. A first reinforcing beam 12 is also arranged in the middle area of ​​the support frame 11. Both ends of the first reinforcing beam 12 are fixedly connected to the support frame 11. A plurality of first reinforcing beams 12 are arranged along the width direction of the support frame 11 and are arranged at intervals in the middle area. The bottom of the first battery pack unit 10 is supported by the first reinforcing beam 12. The first battery pack unit 10 is carried on the support part 1 by connecting the support frame 11 and the first reinforcing beam 12, so that the support part 1 carries the first battery pack unit 10 on the outer frame 200 and improves the stability of the installation of the first battery pack unit 10.

[0165] Furthermore, the support portion 1 also includes a second reinforcing beam 13, which is arranged along the length direction of the support frame 11 and both ends of the second reinforcing beam 13 are connected to the support frame 11, the second reinforcing beam 13 is overlapped on the first reinforcing beam 12 and the second reinforcing beam 13 is fixedly connected to the first reinforcing beam 12 at the connection point. The second reinforcing beam 13 is added to increase the bearing capacity of the middle area of ​​the support frame 11, thereby adapting to the first battery pack unit 10 with a larger bearing gravity, that is, a larger capacity. The first battery pack unit 10 with a larger capacity can increase the overall capacity of the battery pack 100, further improving the battery life of the battery pack 100, so as to meet the battery life requirements of electric vehicles.

[0166] In other embodiments, Fig.10 As shown, the connecting portion 2 is a connecting plate 25 arranged perpendicular to the supporting portion. The connecting plate 25 is a trapezoidal plate or a rectangular plate. The connecting plate 25 is connected to the side of the supporting portion 1 and extends downward from the side of the supporting portion 1 in a trapezoidal shape.

[0167] The side of the connecting plate 25 is attached to the edge of the support part 1 and the extension direction of the connecting plate 25 is consistent with the height direction of the outer frame 200. The extension direction of the connecting plate 25 is single, that is, the connecting plate 25 is a flat plate, and the setting direction of the flat plate and the support part 1 is perpendicular. Therefore, when the connecting plate 25 is attached to the edge of the support part 1, the connecting plate 25 can reduce the occupation of the horizontal space of the support part 1, and can use more space to set the support part 1 or reduce the overall size of the battery pack 100 according to actual needs, thereby reducing the manufacturing cost. In addition, the end of the connecting plate 25 close to the outer frame 200 is provided with a mounting hole for connecting to the edge of the outer frame 200. The connecting plate 25 and the outer frame 200 are screwed together through the mounting hole and bolts to realize the detachable connection of the support part 1 to the outer frame 200 through the connecting part 2, and improve the connection stability after the first battery pack unit 10 is connected to the outer frame 200 through the support part 1 and the connecting part 2.

[0168] In another embodiment, if Fig. 9 , Fig.10 and Fig.11 As shown, the connection between the support frame 11 and the first reinforcement beam 12 also includes a wing structure 14, which extends from the side of the support frame 11 close to the first reinforcement beam 12 to the side or bottom of the first reinforcement beam 12, and the wing structure 14 is simultaneously connected to the support frame 11 and the first reinforcement beam 12, or simultaneously connected to the second reinforcement beam 13 and the first reinforcement beam 12, so as to increase the connection points and improve the connection strength between the first reinforcement beam 12 and the support frame 11 or the second reinforcement beam 13, thereby improving the load-bearing capacity of the first reinforcement beam 12 or the second reinforcement beam 13, and correspondingly improving the load-bearing capacity of the support portion 1 for carrying the first battery pack unit, and making the battery pack support frame more stable when carrying the first battery pack unit 10.

[0169] In other embodiments of the present implementation, the first reinforcing beam 12 may also be arranged along the length direction of the support frame 11, and the second reinforcing beam 13 may also be arranged along the width direction of the support frame 11, and the connection between the first reinforcing beam 12 and the second reinforcing beam 13 is also fixedly connected, and the second reinforcing beam 13 and the first reinforcing beam 12 are arranged in different extension directions, and then the second reinforcing beam 13 and the first reinforcing beam 12 are combined in the support frame 11 to support the first battery pack unit 10, and the bearing capacity of the support part 1 for the bottom of the first battery pack unit 10 is increased by adding the second reinforcing beam 13.

[0170] In a preferred embodiment of the present embodiment, the second reinforcing beam 13 can also extend out of the supporting frame 11 and be connected to the connecting portion 2, that is, the third reinforcing beam 13 and the first frame of the supporting frame 11 are connected to the same connecting portion 2, further improving the load-bearing capacity of the third reinforcing beam 13, and improving the load-bearing capacity of the supporting portion 1 for the first battery pack unit 10.

[0171] In addition, the battery pack support frame in this embodiment also includes a mounting portion 5, which is arranged on the upper surface of the first frame or the second frame of the support frame 11. The mounting portion 5 is arranged corresponding to the bottom of the first battery pack unit 10 and is connected to the first battery pack unit 10. While the first battery pack unit 10 is connected to the support portion 1, the mounting portion 5 can also limit the bottom of the first battery pack unit 10 to prevent the first battery pack unit 10 from loosening after installation, so as to improve the connection stability of the first battery pack unit 10, thereby improving the overall stability of the battery pack 100.

[0172] Among them, the mounting portion 5 includes a third threaded hole 50 arranged on the support portion 1, the third threaded hole 50 passes through the support frame 11 of the support portion 1, and a threaded hole is correspondingly arranged at the bottom of the first battery pack unit 10 to be connected. The bolt passes through the third threaded hole 50 and the threaded hole at the bottom of the first battery pack unit 10 to be connected in sequence to realize the screw connection between the mounting portion 5 and the first battery pack unit 10. The first battery pack unit 10 connected in a screwed form has an accurate installation position, thereby improving the overall installation accuracy of the battery pack 100, and avoiding the situation where the first battery pack unit 10 is skewed or loose after being connected to the support portion 1, resulting in the battery pack 100 being unable to be connected to the electric vehicle.

[0173] And, if Figure 6 As shown, the mounting portion 5 also includes a gasket 51, which is arranged on the supporting frame 11 of the supporting portion 1. The gasket 51 is arranged corresponding to the third threaded hole 50, and the bolt is sequentially inserted into the third threaded hole 50, the gasket 51 and the threaded hole at the bottom of the first battery pack unit 10 to be connected. When the first battery pack unit 10 is screwed to the supporting portion 1, the gasket 51 is arranged to cooperate with the bolt so that the contact area between the bolt and the supporting portion 1 is increased when the supporting portion 1 is screwed to the first battery pack unit 10, thereby improving the stability of the first battery pack unit 10 connected to the supporting portion 1.

[0174] In a preferred implementation manner of the present embodiment, the gasket 51 is located on a side of the support frame 11 away from the first battery pack unit 10, the gasket 51 is attached to the support frame 11 and the nut of the bolt abuts against the gasket 51, and the gasket 51 increases the contact area between the nut and the support frame 11, thereby improving the stability of the support part 1 and the first battery pack unit 10 after being screwed together through the mounting part 5.

[0175] In the present embodiment, a battery pack 100 is further provided, which includes a first battery pack unit and a second battery pack unit arranged along the height direction of the battery pack 100, the first battery pack unit is arranged above the second battery pack unit, and the first battery pack unit and the second battery pack unit together constitute the battery cell part of the battery pack 100, thereby increasing the capacity of the battery pack 100; the battery pack 100 also includes an outer frame 200, and the outer frame 200 is provided with a accommodating area 202 for accommodating the second battery pack unit, that is, the second battery pack unit is effectively carried by the outer frame 200, and the battery pack support frame 1 movably connects the support part 1 to the outer frame 20 through the connecting part 2 0 to support the first battery pack unit, the support portion 1 is arranged corresponding to the accommodating area 202 and the size of the support portion 1 is smaller than the size of the accommodating area 202, so that the support portion 1 can be installed in the accommodating area 202 and be located above the second battery pack unit, thereby achieving a smoother top of the outer frame 200 after the battery pack support frame is connected to the outer frame 200, avoiding interference caused by an uneven top of the battery pack 100 when installed in the electric vehicle, improving the capacity of the battery pack 100, and improving the stability of the first battery pack unit, and improving the overall installation or disassembly efficiency of the battery pack 100, thereby improving the convenience of the battery pack 100 during use.

[0176] Furthermore, a plurality of accommodating areas 202 are provided and are arranged along the length direction or the width direction of the outer frame 200, and the plurality of accommodating areas 202 are arranged side by side, wherein the accommodating areas 202 include a central accommodating area 2021 and side accommodating areas 2022 located on both sides of the central accommodating area 2021. This embodiment is described by taking two side accommodating areas 2022 and one central accommodating area 2021 as an example, but the number of accommodating areas 202 is not limited to this embodiment.

[0177] Specifically, the middle accommodating area 2021 and the side accommodating area 2022 are both rectangular areas, and the size of the middle accommodating area 2021 is larger than the size of the side accommodating area 2022, so that the capacity of the second battery pack unit located in the middle accommodating area 2021 is increased accordingly, or a high-voltage box of the battery pack 100 is arranged in the middle accommodating area 2021 to reasonably utilize the internal space of the battery pack 100 and improve space utilization. The high-voltage box can be arranged in sequence along the length direction of the second battery pack unit on one side of the second battery pack unit located in the middle accommodating area 2021. On this basis, the support part 1 is arranged corresponding to the accommodating area 202, that is, the support part 1 is also provided with a plurality of and arranged side by side. The support part 1 also includes a middle support part and a side support part. The size of the middle support part is larger than the size of the side support part. The middle support part is arranged corresponding to the middle accommodating area 2021, and the side support part is arranged corresponding to the side accommodating area 2022. The purpose is also to increase the capacity of the first battery pack unit and improve the utilization of the internal space of the battery pack 100.

[0178] In this embodiment, a plurality of frame beams 201 on the outer frame 200 of the battery pack 100 enclose a plurality of accommodating areas 202, and the plurality of accommodating areas 202 are separated by the frame beams 201. When the support portion 1 is connected to the frame beam 201 through the connecting portion 2, it can be overlapped on the frame beam 201 or hinged on the frame beam 201 to adapt to different installation requirements of the second battery pack unit. When the frame beam 201 separates a plurality of accommodating areas 202, when the plurality of accommodating areas 202 are arranged side by side, two adjacent accommodating areas 202 will appear, for example, the side accommodating area 2022 and the middle accommodating area 2021 share the same frame beam 201. When the side support parts corresponding to the side accommodating areas 2022 and the middle accommodating area 2021 and the connecting parts 2 on the middle support parts are connected to the same frame beam 201, in order to reduce the size of the battery pack 100 and also to avoid interference between the connecting parts 2 of the side support parts and the connecting parts 2 of the middle support parts, the connecting parts 2 are superimposed on the same frame beam 201 to affect The problem of connection strength is solved by staggered arrangement of the connection parts 2 at the same frame beam 201 shared by the side support part and the middle support part, that is, the setting position of the connection part 2 on the side support part is different from the setting position of the connection part 2 on the middle support part. The staggered connection parts 2 can reduce the lateral space occupied in the battery pack 100 when two adjacent connection parts 2 are connected to the outer frame 200 when multiple support parts 1 arranged above the side accommodating area 2022 and the middle accommodating area 2021 are connected, thereby rationally utilizing the space above the accommodating area 202 to avoid interference between adjacent support parts 1 when they are set.

[0179] In this embodiment, the connecting part 2 includes a first connecting member 60 and a second connecting member 70. The first connecting member 60 has a connecting fold 21, a lap edge 22 and a first limiting fold 23 connected in sequence. The second connecting part 211 of the connecting fold 21 and the reaction limiting fold 23 are correspondingly arranged on both sides of the frame beam 201. The first limiting fold 23 is used to improve the connection strength of the connecting part 2 and the positioning accuracy during connection, thereby improving the connection strength and positioning accuracy of the support part 1. It is particularly suitable for a larger support part 1 such as a middle support part, to avoid the situation where the middle support part cannot effectively carry the first battery pack unit due to the large size and high gravity of the first battery pack unit.

[0180] Of course, the side support portion is also provided with a second connecting member 70, which includes a connecting fold 21 and an overlapping edge 22 connected in sequence, and the second connecting member 70 is correspondingly arranged at the peripheral edge of the side support portion.

[0181] refer to Figures 1 to 3 , Figure 6As shown, when the middle support portion and the side support portion share the same frame beam 201 for connection, in order to ensure that the middle support portion and the side support portion effectively carry the first battery pack unit carried and avoid interference in installation, the first connecting member 60 and the second connecting member 70 need to be arranged in a staggered position, that is, the first connecting member 60 and the second connecting member 70 are connected to the same frame beam 201, and the first connecting member 60 and the second connecting member 70 are arranged at intervals. This not only avoids interference between the connecting portions 2 of two adjacent supporting portions 1 when multiple supporting portions 1 are arranged side by side, especially the interference between the first limiting folded edge 23 of the first connecting member 60 and the lap edge 22 or the connecting folded edge 21 of the second connecting member 70, but also improves the connection efficiency of the support portion 1 to the outer frame 200.

[0182] Example 2

[0183] like Figure 13-Figure 16 As shown, this embodiment is basically the same as the embodiment 1, except that the battery pack support frame further includes a hoisting portion 80, which is arranged at the edge of the support portion 1 and is used to hoist the battery pack support frame. By arranging the hoisting portion 80 on the battery pack support frame, the battery pack support frame can not only fix the upper battery module, but also directly hoist the battery pack support frame and the battery pack as a whole without disassembling the battery pack during maintenance and transportation, so that the battery pack support frame has the functions of supporting tooling and transporting tooling at the same time, which is simple and convenient to operate and improves the efficiency of disassembly and assembly.

[0184] like Figure 13-Figure 15 As shown, in this embodiment, the hoisting portion 80 is disposed in the length direction 300 and the width direction 400 of the support portion 1, so that the support portion 1 has more and more uniform stress points, thereby improving the reliability of hoisting.

[0185] In an alternative embodiment, a hoisting portion 80 is provided in the length direction 300 of the support portion 1, and during hoisting, components in the width direction 400 can be avoided. A plurality of hoisting portions 80 are arranged in two rows and installed on opposite sides of the support frame of the support portion 1 along the length direction 300. The plurality of hoisting portions are arranged in sequence and spaced apart along the length direction of the support portion.

[0186] In another alternative embodiment, a hoisting portion 80 is provided in the width direction 400 of the support portion 1, and during hoisting, components in the length direction 300 can be avoided. A plurality of hoisting portions 80 are arranged in two rows and installed on opposite sides of the support frame of the support portion 1 along the width direction 400. The plurality of hoisting portions are arranged in sequence and spaced apart along the width direction of the support portion.

[0187] The hoisting part is arranged outside the supporting frame of the supporting part, so as to avoid the battery pack unit on the supporting part and reserve more accommodation space for the battery pack unit.

[0188] like Fig.16As shown, in one embodiment, the lifting portion 80 includes a connecting edge 81 and a lifting edge 82 connected in sequence, and the connecting edge 81 and the lifting edge 82 are arranged at an angle, wherein the connecting edge 81 is connected to the supporting portion 1, and the lifting edge 82 is used for lifting.

[0189] The connection edge 81 and the hoisting edge 82 are arranged at an angle, which can reduce the lateral space occupied by the connection edge 81 on the support portion 1, ensure the size of the support portion 1, that is, ensure the capacity of the first battery pack unit 10, achieve stable connection and improve the space utilization of the battery pack. Fig.16 As shown, the angle between the connecting edge 81 and the hanging edge 82 is 90°.

[0190] like Fig.16 As shown, a hoisting hole 821 for hanging is provided on the hoisting edge 82. The hoisting hole 821 is provided on the hoisting edge 82, which is convenient for hook hanging and realizes rapid hoisting.

[0191] In other alternative embodiments, a hanging groove for hanging is provided on the hanging edge 82. Of course, in order to prevent the hook from falling off in the hanging groove, the opening of the hanging groove faces downward.

[0192] like Fig.16 As shown, the hoisting edge 82 is provided with a fixing hole 822, and the fixing hole 822 is used to fix the upper skin, power harness or cooling pipe of the first battery pack unit 10. By providing the fixing hole 822 on the hoisting edge 82, the upper skin, power harness or cooling pipe can be fixed to the hoisting edge 82 without providing other fixing structures, thereby improving the fixing effect.

[0193] like Fig.15 As shown, the connection edge 81 is connected to the bottom of the support portion 1, and the connection portion 2 is connected to the support portion 1 through the connection edge 81. The connection edge 81 is the lower end of the hanging portion 80, which is used to connect and fix the hanging portion 80 to the support portion 1, and the connection portion 2 is used to connect the support portion 1 to the outer frame 200. In this embodiment, the connection portion 2 is connected to the support portion 1 through the connection edge 81, and the hanging portion 80 is also connected to the support portion 1 through the connection edge 81. The connection edge 81 is reused by the connection portion 2 and the hanging portion 80 to simplify the structural setting and make the structure more compact.

[0194] like Fig.15 As shown, the connection part 2 is connected to the bottom of the lifting hole 821, and the connection part 2 extends in the direction away from the support part 1. When the lifting edge 82 is used for lifting, the connection function of the connection part 2 is not affected. The connection part 2 extends in the direction away from the support part 1, which is convenient for overlapping connection with the outer frame of the battery pack. The connection part 2 and the lifting part 8 are located on the same side of the support part, and are both connected to the support part through the connecting edge 81. The connection installation and lifting of the support part can be concentrated on one component, without occupying additional space of the support part for accommodating the battery pack unit, thereby improving space utilization.

[0195] The hanging hole 821 and the connecting part 2 are formed by cutting an inverted U-shaped line on the hanging edge 82 and bending the part inside the inverted U-shape toward the outside of the supporting part 1 to form the connecting part 2, thereby forming a structure in which the connecting part 2 and the hanging part 80 are integrally arranged. The structure is simple and easy to process and manufacture, and the connecting part 2 and the hanging part 8 have high structural strength.

[0196] like Figure 13-Figure 15 As shown, in one embodiment, since the support frame 11 has thickness, the hoisting portion 80 is arranged on the outside of the support frame 11 of the support portion 1, so that the hoisting portion 80 and the battery pack have a certain spacing distance to avoid interference between the hook and the battery pack during hoisting.

[0197] Example 3

[0198] like Figure 17-Figure 21 As shown, this embodiment is basically the same as Embodiment 2, except that the hanging part 80 is arranged inside the supporting frame 11 of the supporting part 1. The hanging part 80 will not affect or interfere with the connection between the connecting part 2 and the outer frame of the battery pack.

[0199] like Fig.17 and Fig.18 As shown, the length of the first reinforcing beam 12 is greater than the width of the first battery pack unit, and the mounting portion is disposed on the first reinforcing beam 12 for connecting with the first battery pack unit. The mounting portion is used to mount the first battery pack unit on the support portion 1. By lengthening the length of the first reinforcing beam 12, the size of the support frame 11 is matched with the distance between the beams, and there is no need to add an extension structure outside the existing battery pack support frame 11, thereby simplifying the battery pack support frame structure, reducing the weight of the battery pack support frame, and improving economic benefits. In addition, the mounting portion for fixing the battery pack is disposed on the first reinforcing beam 12, which will not damage the structure of the support frame 11, thereby improving the strength of the support frame 11.

[0200] like Fig.17 and Fig.18 As shown, in one embodiment, the connecting edge 81 is a U-shaped structure, one end of the U-shaped structure is connected to the inner wall of the support frame 11, and the other end of the U-shaped structure is connected to the hanging edge 82. The connecting edge 81 of the U-shaped structure will not damage the structure of the support frame 11, and will also enhance the strength of the support frame 11 and improve reliability.

[0201] The connecting portion 2 and the hanging portion 8 are located on different sides of the longitudinal beam extending along the length direction of the supporting portion, that is, the connecting portion 2 is located on the outer side of the longitudinal beam, and the hanging portion is located on the inner side of the longitudinal beam.

[0202] like Fig. 20 and Fig.21As shown, in another embodiment, since the second reinforcing beam 13 is connected to the support frame 11, the extension direction of the second reinforcing beam 13 is different from that of the first reinforcing beam 12, and the second reinforcing beam 13 and the first reinforcing beam 12 are combined in the support frame 11 to support the first battery pack unit 10. By adding the second reinforcing beam 13, the bearing capacity of the support part 1 for the bottom of the first battery pack unit 10 is increased, so that the first battery pack unit 10 of a larger size can be carried, thereby improving the overall capacity of the battery pack. The connecting edge 81 is connected to the second reinforcing beam 13, so that the hoisting part 80 is arranged close to the center of gravity of the battery pack. During hoisting, the force arm is reduced, and the force on the hoisting part 80 and the support part 1 is correspondingly reduced.

[0203] like Figure 17-Figure 21 As shown, there are two connecting parts 2, which are integrally arranged. An escape groove 90 is formed between the overlapping edges 22 of the two connecting parts 2, and the escape groove 90 is used to escape the unlocking connecting rod. The two connecting parts 2 that are integrally arranged not only increase the connection strength, but also facilitate processing and manufacturing. An escape groove 90 is formed between the overlapping edges 22 of the connecting parts 2, which facilitates the unlocking connecting rod to pass through the escape groove 90 to lock or unlock the locking mechanism. This structure can also take into account the operation of connecting and unlocking the connecting rods at the same time, so as to save installation space.

[0204] In the description of this article, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0205] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A battery pack support frame, characterized in that: include: A support portion, the support portion being used to support the first battery pack unit; A connecting portion, which is disposed at an edge of the supporting portion and is used to connect to an outer frame of the battery pack; The connecting portion is an L-shaped structure, comprising a connecting folded edge and an overlapping edge connected in sequence, wherein the connecting folded edge and the overlapping edge are arranged at an angle, wherein the connecting folded edge is connected to the supporting portion, and the overlapping edge is used to connect to the outer frame of the battery pack; The support portion includes a support frame and a first reinforcement beam, and two ends of the first reinforcement beam are connected to the support frame.

2. The battery pack support frame according to claim 1, characterized in that: The connecting portion further includes a guiding portion, the guiding portion is located on one side or both sides of the connecting portion facing the outer frame of the battery pack, the guiding portion includes a guiding surface, and the guiding surface is an arc surface or an inclined surface from bottom to top; And / or, the connecting portion is arranged in the length direction and / or width direction of the supporting portion; And / or, the battery pack support frame further includes a mounting portion, the mounting portion is disposed on the support portion and is used to connect with the first battery pack unit; And / or, the connecting portion is a connecting plate arranged perpendicular to the supporting portion, the connecting plate is connected to the side of the supporting portion, and extends downward from the side in a trapezoidal shape; And / or, the battery pack support frame further includes a hoisting portion, which is disposed at an edge of the support portion and is used for hoisting the battery pack support frame.

3. The battery pack support frame according to claim 2, characterized in that: The connecting fold includes a first connecting portion and a second connecting portion arranged at an angle, the first connecting portion is connected to the bottom of the supporting portion, the second connecting portion is connected to the overlapping edge, and the first connecting portion, the second connecting portion and the overlapping edge are arranged in a Z shape; And / or, the overlapping edge is provided with a first threaded hole for a fastener to pass through so as to be threadedly connected to the outer frame of the battery pack.

4. The battery pack support frame according to claim 2, characterized in that: The connecting portion further includes a first limiting folded edge, the first limiting folded edge is connected to the overlapping edge, and the first limiting folded edge, the overlapping edge and the connecting folded edge form an inverted U shape; Alternatively, the connecting portion further includes a second limiting folded edge, and two side edges of the second limiting folded edge are respectively connected to the overlapping edge and the connecting folded edge.

5. The battery pack support frame according to claim 4, characterized in that: There are two connecting parts, which are integrally arranged. An avoidance groove is formed between the overlapping edges of the two connecting parts, and the avoidance groove is used to avoid the unlocking connecting rod.

6. The battery pack support frame according to claim 2, characterized in that: The battery pack support frame further includes a through hole provided on the support portion, a second threaded hole is provided on the connecting fold, and the connecting fold is threadedly connected to the support portion through the second threaded hole and the through hole; And / or, the battery pack support frame also includes a threaded sleeve arranged on the support portion, the threaded sleeve is connected to the second threaded hole on the connecting flange, and the connecting flange is threadedly connected to the support portion through the second threaded hole and the threaded sleeve.

7. The battery pack support frame according to claim 2, characterized in that: The plurality of connecting parts are sequentially arranged at intervals along the length direction and / or width direction of the supporting part; And / or, the support portion further includes a second reinforcing beam, both ends of which are connected to the support frame and have an extension direction different from that of the first reinforcing beam, and the second reinforcing beam is symmetrically arranged in the length direction or the width direction within the support frame; And / or, the mounting portion includes a third threaded hole provided on the supporting portion, and the third threaded hole is provided corresponding to the first battery pack unit to be threadedly connected to the first battery pack unit; And / or, the hoisting portion is arranged in the length direction and / or width direction of the supporting portion; And / or, the hoisting part is arranged on the outer side or inner side of the supporting frame of the supporting part; And / or, the hoisting portion includes a connecting edge and a hoisting edge connected in sequence, the connecting edge and the hoisting edge are arranged at an angle, wherein the connecting edge is connected to the supporting portion, and the hoisting edge is used for hoisting.

8. The battery pack support frame according to claim 7, characterized in that: The first reinforcing beam further includes wing plate structures located on both sides, and the wing plate structures are suitable for being connected to the second reinforcing beam, or to a supporting frame intersecting with the first reinforcing beam.

9. The battery pack support frame according to claim 7, characterized in that: The mounting portion further includes a gasket, and the gasket is arranged corresponding to the third threaded hole.

10. The battery pack support frame according to claim 7, characterized in that: The plurality of hoisting parts are sequentially arranged at intervals along the length direction and / or width direction of the supporting part.

11. The battery pack support frame according to claim 7, characterized in that: The connecting edge is a U-shaped structure, one end of the U-shaped structure is connected to the inner side wall of the supporting frame of the supporting part, and the other end of the U-shaped structure is connected to the hanging edge; And / or, the hoisting edge is provided with a hoisting hole or hoisting slot for hanging; And / or, a fixing hole is provided on the hoisting edge, and the fixing hole is used to fix the upper skin, power harness or cooling pipe of the first battery pack unit; And / or, the connecting portion is connected to the supporting portion via the connecting edge.

12. The battery pack support frame according to claim 11, characterized in that: The connecting portion is connected to the bottom of the hanging edge, and the connecting portion extends in a direction away from the supporting portion.

13. A battery pack, characterized in that: It includes: a first battery pack unit; a second battery pack unit; an outer frame, wherein the outer frame is provided with a receiving area for receiving the second battery pack unit; A battery pack support frame as described in any one of claims 1-12; the battery pack support frame is arranged corresponding to the accommodating area, and carries the first battery pack unit above the second battery pack unit, and the connecting portion of the battery pack support frame is movably connected to the edge of the outer frame.

14. The battery pack according to claim 13, wherein: The accommodating area includes a central accommodating area and side accommodating areas located on both sides of the central accommodating area, and the central accommodating area is wider than the side accommodating area; the battery pack support frame is arranged corresponding to the accommodating area; And / or, the connecting portion includes a first connecting member and a second connecting member, the first connecting member has a connecting folded edge, an overlapping edge and a limiting folded edge connected in sequence, the second connecting member includes the connecting folded edge and the overlapping edge connected in sequence, and the first connecting member and the second connecting member between two adjacent battery pack support frames are alternately arranged; And / or, a connection base cooperating with the connection portion is further arranged above the accommodating area, and the connection base is connected to the edge of the outer frame.

15. The battery pack according to claim 14, characterized in that: The connection parts between two adjacent battery pack support frames are arranged in a staggered manner.

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