Frame body, box body, battery pack and electric equipment

Abstract

The utility model provides a frame body, box, battery pack and electric equipment, the frame body includes two boundary beams, a plurality of longitudinal beams and a plurality of reinforcing members, the two boundary beams are arranged oppositely and at intervals along the first direction, each boundary beam is arranged extending along the second direction, the plurality of longitudinal beams are arranged at intervals along the second direction, each longitudinal beam is arranged extending along the first direction, and the reinforcing members are arranged at intervals along the second direction. The multiple reinforcing pieces are arranged corresponding to the ends of the multiple longitudinal beams, each reinforcing piece comprises a connecting base and an inserting part arranged on the connecting base in a protruding mode, the connecting bases are fixedly connected with the edge beams, the inserting parts are matched with the ends of the corresponding longitudinal beams in an inserting mode, and each inserting part is provided with two first side walls which are oppositely arranged in the second direction. The two first side walls are fixedly connected with the corresponding longitudinal beams through the multiple connecting pieces, so that the connecting strength between the longitudinal beams and the edge beams is improved, the stability of the overall structure of the frame body is further improved, and due to the fact that the connecting pieces have large operation space, the connecting and fixing operation of the inserting parts and the longitudinal beams is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric equipment, concretely relates to frame body, box, battery pack and electric equipment. BACKGROUND

[0002] The box of the battery pack serves as the structural main body of the battery pack, provides a containing space for the parts in the battery pack, is the mounting carrier of all the parts of the whole pack, and plays the functions of containing, separating, carrying and mounting, and mechanically protecting the internal parts of the battery pack.

[0003] In the related art, the box usually comprises a frame body, and the frame body is used for surrounding the circumferential side of the battery module and plays a main protection role on the battery module. The frame body is usually formed by splicing and welding of multiple aluminum extruded profiles. However, for a large-capacity battery pack, since the weight of the battery module is relatively heavy, the splicing and welding of the multiple aluminum extruded profiles belongs to surface welding, so that the frame body cannot meet the structural strength requirement of the large-capacity battery pack. SUMMARY

[0004] Embodiments of the utility model provide a frame body, a box, a battery pack and electric equipment, and aim to solve the problem that in the related art, for a large-capacity battery pack, since the weight of the battery module is relatively heavy, the splicing and welding of the multiple aluminum extruded profiles belongs to surface welding, so that the frame body cannot meet the structural strength requirement of the large-capacity battery pack.

[0005] In a first aspect, embodiments of the utility model provide a box.

[0006] In an embodiment, the frame body comprises:

[0007] two edge beams, which are oppositely and spacedly arranged along a first direction, and each of the edge beams is arranged to extend along a second direction, and the first direction and the second direction are arranged to intersect;

[0008] a plurality of longitudinal beams, which are spacedly arranged along the second direction, and each of the longitudinal beams is arranged to extend along the first direction; and

[0009] a plurality of reinforcing members, which are arranged at the end portions of the plurality of longitudinal beams, and each of the reinforcing members comprises a connecting seat and a plug-in part protruding from the connecting seat, the connecting seat is fixedly connected with the edge beam, the plug-in part is plug-in matched with the end portion of the corresponding longitudinal beam, the plug-in part has two first side walls arranged to be opposite along the second direction, and the two first side walls are fixedly connected with the corresponding longitudinal beam through a plurality of connecting members

[0010] In an embodiment, the connecting seat is fixedly connected with the edge beam through a plurality of first screw members; and / or,

[0011] The plurality of connecting members comprises a plurality of second screw members, each of the second screw members fixedly connecting the first side wall with a corresponding longitudinal beam.

[0012] In an embodiment, the longitudinal beam has two second side walls oppositely arranged along the second direction, each of the second side walls is provided with a plurality of first through holes along the second direction;

[0013] Each of the first side walls is provided with a plurality of first threaded holes along the second direction, the plurality of first threaded holes are correspondingly arranged with the plurality of first through holes;

[0014] Threaded ends of the plurality of second screw members pass through the plurality of first through holes and are threadedly connected with a corresponding plurality of first threaded holes.

[0015] In an embodiment, the hole diameter of the first through hole is at least partially arranged in a decreasing manner along a direction from the second side wall to the first side wall;

[0016] The second screw member comprises a first conical countersunk bolt, a threaded end of the first conical countersunk bolt is adapted to be threadedly connected with the first threaded hole, and a head of the first conical countersunk bolt is adapted to be sunk in the first through hole.

[0017] In an embodiment, an end of the insertion portion away from the connecting seat is provided with a groove, the groove is in communication with the plurality of first threaded holes.

[0018] In an embodiment, the connecting seat is provided with a plurality of second through holes along the first direction, the plurality of second through holes are arranged on two sides of the insertion portion along the second direction;

[0019] Each of the edge beams is provided with a plurality of second threaded holes corresponding to the plurality of second through holes;

[0020] Threaded ends of the plurality of first screw members pass through the plurality of second through holes and are threadedly connected with a corresponding plurality of second threaded holes.

[0021] In an embodiment, the hole diameter of the second through hole is at least partially arranged in a decreasing manner along a direction from the insertion portion to the connecting seat;

[0022] The first screw member comprises a second conical countersunk bolt, a threaded end of the second conical countersunk bolt is adapted to be threadedly connected with the second threaded hole, and a head of the second conical countersunk bolt is adapted to be sunk in the second through hole.

[0023] In an embodiment, the connecting seat is further provided with a plurality of welding holes along the first direction, the plurality of welding holes are arranged on two sides of the insertion portion along the second direction, and peripheries of the plurality of welding holes are adapted to be welded with the edge beams; and / or,

[0024] The periphery of the connecting seat is welded and fixed with the edge beam.

[0025] In an embodiment, the end of the longitudinal beam is provided with a plug hole.

[0026] The plug part is inserted into the plug hole, and the connecting seat abuts against the end of the longitudinal beam.

[0027] In an embodiment, the plug part comprises a plurality of convex columns arranged at intervals along a third direction, one end of each of the plurality of convex columns is connected with the connecting seat, and the other end of each of the plurality of convex columns is inserted into the plug hole, and the third direction is arranged perpendicularly to each of the first direction and the second direction.

[0028] In an embodiment, the plug hole of the longitudinal beam comprises a plurality of sub-holes arranged at intervals along a third direction, the plurality of sub-holes are arranged in one-to-one correspondence with the plurality of convex columns, and each of the sub-holes is used for inserting the corresponding convex column.

[0029] In a second aspect, an embodiment of the utility model provides a box body applied to a battery pack, the box body comprising the frame body as described above.

[0030] In an embodiment, a bottom plate is further included, the bottom plate is welded and fixed with the plurality of longitudinal beams and / or the two edge beams, so that the bottom plate, the plurality of longitudinal beams and the two edge beams jointly enclose to form a plurality of cabins, and the plurality of cabins are used for installing battery modules.

[0031] In a third aspect, an embodiment of the utility model provides a battery pack, the battery pack comprising the box body as described above.

[0032] In a fourth aspect, an embodiment of the utility model provides a power consumption equipment, the power consumption equipment comprising the battery pack as described above.

[0033] The embodiment of the utility model has the beneficial effects that:

[0034] In the embodiment of the utility model, two boundary beams are arranged along the first direction oppositely and at intervals, and the longitudinal beam is arranged at intervals along the second direction intersecting the boundary beam, and this cross arrangement makes the frame body form stable support structure in two directions, effectively improving the stability of the overall structure of the frame body. The end of the reinforcing member corresponding to the longitudinal beam is fixedly connected with the boundary beam through the connecting seat, so that the position of the connecting seat is fixed. The plug-in part is plug-in matched with the longitudinal beam, and this connection mode not only simplifies the assembly process, but also increases the contact area between the plug-in part and the longitudinal beam, so that the connection strength between the longitudinal beam and the boundary beam is increased, and the stability of the overall structure of the frame body is further improved. The connecting seat of the reinforcing member is fixedly connected with the boundary beam, and the plug-in part is plug-in matched with the longitudinal beam and fixed by multiple connecting members, so that the reinforcing member can effectively transmit and disperse external force, and the bending and torsional resistance of the frame body is enhanced, so that the frame body meets the structural strength requirement of the large-capacity battery pack. The plug-in part of the reinforcing member has two first side walls arranged away from each other along the second direction, and the two first side walls are fixedly connected with the corresponding longitudinal beam through multiple connecting members, so that the plug-in part is fixedly connected with the longitudinal beam, avoiding separation of the plug-in part and the longitudinal beam, and improving the connection strength of the overall structure of the frame body. In addition, the two first side walls are arranged away from each other along the second direction, so that when the plug-in part and the corresponding longitudinal beam are fixedly connected through the connecting member, there is a large operation space, so that the connection and fixing operation of the plug-in part and the longitudinal beam is simple. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Figure 1 It is the structure schematic view of the frame body provided by the embodiment of the utility model;

[0037] Figure 2 It is Figure 1 It is the sectional view schematic view of the frame body shown in the figure;

[0038] Figure 3 It is Figure 2 It is the local enlarged schematic view of A shown in the figure;

[0039] Figure 4 It is Figure 1 It is the structure schematic view of the reinforcing member shown in the figure;

[0040] Figure 5 It is Figure 1 It is the structure schematic view of the longitudinal beam shown in the figure;

[0041] Figure 6It is the structural schematic view of the box provided by the embodiment of the utility model;

[0042] Figure 7 It is the structural schematic view of the battery pack provided by the embodiment of the utility model;

[0043] Figure 8 It is Figure 7 The cross-sectional schematic view of the battery pack (part structure) shown.

[0044] Mark explanation:

[0045] 1000, battery pack;100, box;10, frame;11, edge beam;12, longitudinal beam;121, second side wall;122, plug-in hole;1221, sub-hole;13, reinforcing part;131, connecting seat;1311, welding hole;132, plug-in part;1321, first side wall;1322, groove;1323, convex column;14, connecting piece;141, second screw piece;15, first screw piece;161, first via hole;162, second via hole;171, first threaded hole;172, second threaded hole;20, bottom plate;30, cabin;200, battery module. Specific implementation

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the utility model, and is not used to limit the utility model. In the utility model, the orientation words such as 'up' and 'down' generally refer to the up and down of the device in the actual use or working state, and the specific direction is the direction of the drawing in the drawings. And 'inner' and 'outer' are relative to the outline of the device.

[0047] The box of the battery pack serves as the main structure of the battery pack, provides a containing space for the parts in the battery pack, is the mounting carrier of all parts of the whole pack, and plays the functions of containing, separating, carrying and mounting, and mechanically protecting the internal parts of the battery pack.

[0048] In the related art, the box usually comprises a frame, and the frame is used for surrounding the circumferential side of the battery module, and the frame plays a main protection role on the battery module. The frame is usually formed by splicing and welding of multiple aluminum extruded profiles. However, for a large-capacity battery pack, since the weight of the battery module is relatively heavy, the splicing and welding of multiple aluminum extruded profiles belongs to surface welding, so that the frame cannot meet the structural strength requirement of the large-capacity battery pack.

[0049] In view of this, the utility model provides a kind of box, Figures 1 to 5 The structural schematic diagram of the embodiment of the frame body provided by the utility model, the waterproof performance of the box provided by the utility model is greatly improved. The box will be described in detail below in conjunction with the main drawings.

[0050] With reference to Figures 1 to 3 The frame body 10 includes two edge beams 11, a plurality of longitudinal beams 12 and a plurality of reinforcing members 13. The two edge beams 11 are oppositely and spacedly arranged along a first direction, and each edge beam 11 is arranged to extend along a second direction. The first direction and the second direction are intersectingly arranged. The plurality of longitudinal beams 12 are spacedly arranged along the second direction, and each longitudinal beam 12 is arranged to extend along the first direction. The plurality of reinforcing members 13 are arranged corresponding to the end portions of the plurality of longitudinal beams 12. Each reinforcing member 13 includes a connecting seat 131 and a plug-in portion 132 protruding from the connecting seat 131. The connecting seat 131 is fixedly connected with the edge beam 11. The plug-in portion 132 is plug-in matched with the end portion of the corresponding longitudinal beam 12. The plug-in portion 132 has two first side walls 1321 oppositely arranged along the second direction. The two first side walls 1321 are fixedly connected with the corresponding longitudinal beam 12 through a plurality of connecting members 14.

[0051] In the embodiment of the utility model, two boundary beams 11 are arranged relatively and spaced apart along a first direction, and longitudinal beams 12 are arranged spaced apart along a second direction intersecting the boundary beams 11, and this cross arrangement makes the frame body 10 form a stable support structure in two directions, effectively improving the stability of the overall structure of the frame body 10. The end portion of the reinforcing member 13 corresponding to the longitudinal beam 12 is fixedly connected with the boundary beam 11 through the connecting seat 131, realizing the fixation of the position of the connecting seat 131. The plug-in part 132 is plug-in matched with the longitudinal beam 12, and this connection mode not only simplifies the assembly process, but also enhances the contact area between the plug-in part 132 and the longitudinal beam 12, so that the connection strength between the longitudinal beam 12 and the boundary beam 11 is increased, further improving the stability of the overall structure of the frame body 10. The connecting seat 131 of the reinforcing member 13 is fixedly connected with the boundary beam 11, and the plug-in part 132 is plug-in matched with the longitudinal beam 12 and fixed by the plurality of connecting members 14, and this design makes the reinforcing member 13 effectively transfer and disperse external force, enhances the bending and torsional resistance of the frame body 10, so that the frame body meets the structural strength requirement of the large-capacity battery pack. The plug-in part 132 of the reinforcing member 13 has two first side walls 1321 arranged away from each other along the second direction, and the two first side walls 1321 are fixedly connected with the corresponding longitudinal beam 12 through the plurality of connecting members 14, so that the plug-in part 132 is fixedly connected with the longitudinal beam 12, avoiding the separation of the plug-in part 132 and the longitudinal beam 12, and improving the connection strength of the overall structure of the frame body 10. In addition, the two first side walls 1321 are arranged away from each other along the second direction, so that when the plug-in part 132 and the corresponding longitudinal beam 12 are fixedly connected through the connecting member 14, there is a large operation space, so that the connection and fixation operation of the plug-in part 132 and the longitudinal beam is simple.

[0052] Referring to Figure 3 In an embodiment, the connecting seat 131 is fixedly connected with the boundary beam 11 through the plurality of first screw members 15, so that the screwing fixation mode can bear larger tension and shear force, ensuring the strength and stability of the connection between the connecting seat 131 and the boundary beam 11. The screwing fixation has self-locking function, which can effectively prevent the connecting seat 131 and the boundary beam 11 from loosening due to vibration or external force. The screwing fixation mode is relatively simple, and can quickly realize the connection between the connecting seat 131 and the boundary beam 11, improving the installation efficiency. The screwing fixation mode makes the connecting seat 131 and the boundary beam 11 can be disassembled as needed.

[0053] It should be noted that the connection between the connecting seat 131 and the edge beam 11 can be selected as required, for example, in an embodiment, the connecting seat 131 and the edge beam 11 can also be fixed by screwing and welding. In this way, the stability of the connecting seat 131 and the edge beam 11 is improved. In another embodiment, the connecting seat 131 and the edge beam 11 can also be fixed by welding or pin shaft connection. In other embodiments, the connecting seat 131 and the edge beam 11 can also be fixed by welding and pin shaft connection. Specifically, the present application does not limit this.

[0054] With reference to Figure 2 and Figure 3 In an embodiment, the plurality of connecting members 14 includes a plurality of second screw members 141, each second screw member 141 fixedly connects the first side wall 1321 and the corresponding longitudinal beam 12. In this way, the screwing fixing mode can withstand greater tensile force and shear force, ensuring the strength and stability of the connection between the plug-in part 132 and the longitudinal beam 12. The screwing fixing has a self-locking function, which can effectively prevent the plug-in part 132 and the longitudinal beam 12 from loosening due to vibration or external force. The screwing fixing mode is relatively simple, and can quickly realize the connection between the plug-in part 132 and the longitudinal beam 12, improving the installation efficiency. The screwing fixing mode makes the plug-in part 132 and the longitudinal beam 12 can be disassembled as required.

[0055] It should be noted that the connection between the plug-in part 132 and the longitudinal beam 12 can be selected as required, for example, in an embodiment, the plug-in part 132 and the longitudinal beam 12 can also be fixed by screwing and welding. In this way, the stability of the plug-in part 132 and the longitudinal beam 12 is improved. In another embodiment, the plug-in part 132 and the longitudinal beam 12 can also be fixed by welding or pin shaft connection. In other embodiments, the plug-in part 132 and the longitudinal beam 12 can also be fixed by welding and pin shaft connection. Specifically, the present application does not limit this.

[0056] With reference to Figure 3 and Figure 5In an embodiment, the longitudinal beam 12 has two second side walls 121 oppositely arranged along the second direction, each of the second side walls 121 is provided with a plurality of first through holes 161 penetrating through along the second direction, each of the first side walls 1321 is provided with a plurality of first threaded holes 171 penetrating through along the second direction, the plurality of first threaded holes 171 are correspondingly arranged with the plurality of first through holes 161, threaded ends of the plurality of second threaded members 141 pass through the plurality of first through holes 161 and are threadedly connected with the corresponding plurality of first threaded holes 171, in this way, the screwing and fixing mode can bear larger tensile force and shear force, ensuring the strength and stability of the connection between the plug-in part 132 and the longitudinal beam 12. The screwing and fixing has self-locking function, which can effectively prevent the plug-in part 132 and the longitudinal beam 12 from loosening due to vibration or external force. The screwing and fixing mode is relatively simple, and the connection between the plug-in part 132 and the longitudinal beam 12 can be quickly realized, improving the installation efficiency. The screwing and fixing mode makes the plug-in part 132 and the longitudinal beam 12 can be disassembled as needed.

[0057] With reference to Figure 3 and Figure 5 In an embodiment, the hole diameter of the first through hole 161 is at least partially arranged in a decreasing manner from the second side wall 121 to the first side wall 1321, the second threaded member 141 comprises a first conical countersunk bolt, a threaded end of the first conical countersunk bolt is adapted to be threadedly connected with the first threaded hole 171, a head of the first conical countersunk bolt is adapted to be sunk in the first through hole 161, in this way, the head of the first conical countersunk bolt is designed as a cone, which can be adapted to the first through hole 161 with decreasing hole diameter, when the bolt is installed in place, the head of the first conical countersunk bolt can be sunk in the hole and will not protrude from the surface of the second side wall 121, thereby realizing an aesthetic assembly effect. Since the head of the first conical countersunk bolt does not protrude from the surface of the second side wall 121, safety hazards caused by the bolt head during use, such as scratching, collision, etc. can be avoided. The countersunk design makes the head of the first conical countersunk bolt form a more close contact with the second side wall 121, which helps to enhance the stability of the connection and prevent the first conical countersunk bolt from loosening due to vibration or external force. Due to the adaptability of the head of the first conical countersunk bolt to the first through hole 161, the alignment of the first conical countersunk bolt and the threaded hole during installation can be more easily realized, improving the installation efficiency. Since the head of the first conical countersunk bolt can be sunk in the first through hole 161, the utilization rate of the space formed by the frame body 10 is improved.

[0058] With reference to Figure 3In an embodiment, the insertion portion 132 is provided with a groove 1322 at the end away from the connecting seat 131, and the groove 1322 is in communication with the plurality of first threaded holes 171. Thus, due to the presence of the groove 1322, the installer can more easily pass the second threaded member 141 through the corresponding first threaded hole 171 and quickly complete the fastening operation, thereby improving the installation efficiency. The design of the groove 1322 helps to reduce the stress concentration phenomenon of the insertion portion 132 during the connection process. When the second threaded member 141 is tightened, the groove 1322 can disperse part of the stress, thereby reducing the risk of cracking or damage of the insertion portion 132. The presence of the groove 1322 can reduce the weight of the fastener.

[0059] With reference to Figure 3 and Figure 4 In an embodiment, the connecting seat 131 is provided with a plurality of second through holes 162 in the first direction, and the plurality of second through holes 162 are disposed on both sides of the insertion portion 132 in the second direction. Each side beam 11 is provided with a plurality of second threaded holes 172 corresponding to the plurality of second through holes 162. The threaded end of the plurality of first threaded members 15 passes through the plurality of second through holes 162 and is threadedly connected with the corresponding plurality of second threaded holes 172. Thus, the screwing and fixing method can withstand greater tensile force and shear force, ensuring the strength and stability of the connection between the connecting seat 131 and the side beam 11. The screwing and fixing method has a self-locking function, which can effectively prevent the connecting seat 131 and the side beam 11 from loosening due to vibration or external force. The screwing and fixing method is relatively simple and can quickly realize the connection between the connecting seat 131 and the side beam 11, thereby improving the installation efficiency. The screwing and fixing method allows the connecting seat 131 and the side beam 11 to be disassembled as needed.

[0060] With reference to Figure 3In an embodiment, the aperture of the second through hole 162 is at least partially arranged in a decreasing manner from the insertion portion 132 to the connecting seat 131, and the first threaded member 15 comprises a second tapered countersunk bolt. The threaded end of the second tapered countersunk bolt is adapted to be threadedly connected with the second threaded hole 172, and the head of the second tapered countersunk bolt is adapted to be countersunk in the second through hole 162. In this way, the head of the second tapered countersunk bolt is designed to be tapered, which can be adapted to the second through hole 162 with a decreasing aperture. When the second tapered countersunk bolt is installed in place, the head thereof can be countersunk in the hole and does not protrude from the surface of the connecting seat 131, thereby achieving an aesthetically pleasing assembly effect. Since the head of the second tapered countersunk bolt does not protrude from the surface of the connecting seat 131, it can avoid safety hazards such as scratching and collision caused by the head of the second tapered countersunk bolt during use. Since the head of the second tapered countersunk bolt matches the design of the decreasing aperture of the second through hole 162, when the second tapered countersunk bolt is tightened, the head of the second tapered countersunk bolt can be more tightly fitted on the inner wall of the second through hole 162, thereby enhancing the stability and reliability of the connection between the edge beam 11 and the connecting seat 131. The design of the tapered head of the second tapered countersunk bolt helps to disperse stress during connection, reducing the risk of cracking or damage at the connection site due to stress concentration. Due to the adaptability of the head of the second tapered countersunk bolt to the second through hole 162, the alignment of the second tapered countersunk bolt and the second threaded hole 172 can be more easily achieved during installation, improving installation efficiency. Since the head of the second tapered countersunk bolt can be countersunk in the second through hole 162, the utilization rate of the space formed by the frame body 10 is improved.

[0061] Referring to Figure 4 In an embodiment, the connecting seat 131 is further provided with a plurality of welding holes 1311 along the first direction, and the plurality of welding holes 1311 are arranged on both sides of the insertion portion 132 along the second direction. The periphery of the plurality of welding holes 1311 is used to be welded and fixed with the edge beam 11. In this way, the connection strength between the connecting seat 131 and the edge beam 11 is improved, so that the frame edge can withstand larger loads and vibrations. The arrangement of the welding holes 1311 on both sides of the insertion portion 132 along the second direction helps to disperse stress during welding of the connecting seat 131 and the edge beam 11, avoiding connection failure caused by stress concentration.

[0062] In an embodiment, the periphery of the connecting seat 131 is welded and fixed with the edge beam 11. In this way, the connection strength between the connecting seat 131 and the edge beam 11 is improved, so that the frame edge can withstand larger loads and vibrations and meet the structural strength requirements of large-capacity battery packs. By welding the periphery of the connecting seat 131 with the edge beam 11, displacement or deformation of the connecting seat 131 during use can be effectively prevented, thereby ensuring the stability of the entire structure. Welded connection has good long-term stability, which can ensure that the connection between the connecting seat 131 and the edge beam 11 remains firm at all times.

[0063] It should be noted that the features of the welding of the periphery of the welding hole 1311 to the edge beam 11 and the features of the welding of the periphery of the connecting seat 131 to the edge beam 11 can be selectively arranged, or can be simultaneously arranged, and when simultaneously arranged, the connecting seat 131 and the edge beam 11 are stably and firmly connected.

[0064] The way in which the end of the longitudinal beam 12 and the insertion part 132 are insertedly fitted can be selected as required, and reference can be made to Figure 4 and Figure 5 In an embodiment, the end of the longitudinal beam 12 is provided with an insertion hole 122, the insertion part 132 is inserted into the insertion hole 122, the connecting seat 131 abuts against the end of the longitudinal beam 12, and the insertion hole 122 and the insertion part 132 are designed to be fitted, so that the insertion part 132 and the longitudinal beam 12 are connected simply and quickly, thereby improving the connection efficiency. The close fitting of the insertion hole 122 and the insertion part 132 increases the contact area of the longitudinal beam 12 and the insertion part 132, and can ensure the stability and reliability of the connection part of the insertion hole 122 and the insertion part 132, and prevent structural failure at the connection part of the insertion hole 122 and the insertion part 132. The design of the insertion connection helps to disperse the stress at the connection part, and avoids structural damage caused by stress concentration, thereby improving the stability of the overall structure of the frame body 10. The design of the insertion hole 122 and the insertion part 132 can ensure accurate positioning of the connection part, and avoid deviation or misplacement during the connection process. Accurate fitting and positioning help to improve the assembly quality of the frame body 10, and ensure the firmness and reliability of the connection part.

[0065] In other embodiments, the end of the insertion part 132 can also be provided with an insertion hole 122, and the longitudinal beam 12 is inserted into the insertion hole 122. In other embodiments, the insertion part 132 can be provided with a first insertion hole 122, and the longitudinal beam 12 can be provided with a second insertion hole 122, the end of the longitudinal beam 12 is inserted into the first insertion hole 122, and the end of the insertion part 132 is inserted into the second insertion hole 122. Specifically, the present application does not limit this.

[0066] Reference can be made to Figure 4 In an embodiment, the insertion part 132 includes a plurality of protruding columns 1323 spaced apart along a third direction, one end of each of the plurality of protruding columns 1323 is connected to the connecting seat 131, and the other end of each of the plurality of protruding columns 1323 is inserted into the inner cavity of the longitudinal beam 12, and the third direction is arranged perpendicular to each of the first direction and the second direction. In this way, by the insertion of the plurality of protruding columns 1323 and the insertion hole 122, multi-point connection is achieved, the strength and stability of the connection part of the insertion part 132 and the longitudinal beam 12 are enhanced, and the overall structure of the frame body 10 is more solid and durable. The spaced arrangement of the plurality of protruding columns 1323 helps to disperse the stress at the connection part, and avoids structural damage caused by stress concentration, thereby improving the stability of the overall structure of the frame body 10.

[0067] Referring to Figure 5 In an embodiment, the insertion hole 122 of the longitudinal beam 12 comprises a plurality of sub-holes 1221 spaced apart along the third direction, and the plurality of sub-holes 1221 are arranged in one-to-one correspondence with the plurality of protruding columns 1323, each sub-hole 1221 is provided for the corresponding protruding column 1323 to be inserted, so that each protruding column 1323 can be accurately inserted into the corresponding sub-hole 1221, and precise fitting is achieved, which helps to reduce assembly errors and improve the stability and reliability of the connection between the insertion part 132 and the longitudinal beam 12. The plurality of sub-holes 1221 and the plurality of protruding columns 1323 form a multi-point connection, which can more effectively resist external loads and vibrations, thereby enhancing the connection strength. The one-to-one correspondence of the sub-holes 1221 and the protruding columns 1323 simplifies the assembly steps.

[0068] In a second aspect, the embodiments of the utility model further provide a box 100, the box 100 is applied to the battery pack 1000, the box 100 includes the frame 10 as described above, and the specific structure of the frame 10 refers to the above-mentioned embodiments, since the box 100 of the utility model adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0069] Figure 6 It is the structural schematic diagram of the box provided by the embodiments of the utility model. Referring to Figure 6 In an embodiment, the box 100 further comprises a bottom plate 20, which is welded and fixed with the plurality of longitudinal beams 12 and / or the two edge beams 11. This connection mode greatly enhances the overall rigidity of the box 100, so that it can better resist external impact and vibration and meet the structural strength requirements. The bottom plate 20, the plurality of longitudinal beams 12 and the two edge beams 11 together form a plurality of cabins 30, and the design of the plurality of cabins 30 provides an installation space for the battery module 200, making the installation of the battery module 200 more convenient and accurate. The design of the plurality of cabins 30 effectively supports and fixes the battery module 200 in the box 100, reducing the risk of deformation caused by the weight of the battery module 200 or vehicle movement.

[0070] Figure 7 It is the structural schematic diagram of the battery pack provided by the embodiments of the utility model. Figure 8 It is Figure 7 It is the cross-sectional schematic view of the battery pack (part of structure) shown in the figure. Referring to Figure 7 and Figure 8In the third aspect, the embodiments of the utility model further propose a battery pack 1000, including the box 100 as described above, the specific structure of box 100 refers to the above embodiment, because the battery pack 1000 adopts all the technical solutions of the above all embodiments, therefore at least has all the beneficial effects brought by the technical solutions of the above embodiments, here will not repeat.

[0071] In the fourth aspect, the embodiments of the utility model further propose a power-using equipment, including the battery pack 1000 as described above, the specific structure of battery pack 1000 refers to the above embodiment, because the power-using equipment adopts all the technical solutions of the above all embodiments, therefore at least has all the beneficial effects brought by the technical solutions of the above embodiments, here will not repeat.

[0072] It needs to be explained that the power-using equipment can be set according to the needs, for example, the power-using equipment can be vehicle, energy storage power supply, consumer electronics, medical equipment or smart city etc., specifically, the specific type of power-using equipment is not limited in the present application.

[0073] The embodiments of the utility model are introduced in detail above, the principle and implementation mode of the utility model are described in this paper by applying specific examples, the above embodiment is only for helping to understand the method and core idea of the utility model, at the same time, for the person skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will have the change, and the above is described, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A frame for a battery pack, the frame comprising: The frame body comprises: two edge beams arranged oppositely and spaced apart along a first direction, each of the edge beams extending along a second direction, the first direction and the second direction being arranged intersectingly; a plurality of longitudinal beams arranged spaced apart along the second direction, each of the longitudinal beams extending along the first direction; and a plurality of reinforcing members arranged corresponding to end portions of the longitudinal beams, each of the reinforcing members comprising a connecting seat and a plug-in portion protruding from the connecting seat, the connecting seat being fixedly connected with the edge beam, the plug-in portion being plug-in matched with the end portion of the corresponding longitudinal beam, the plug-in portion having two first side walls arranged oppositely along the second direction, the two first side walls being fixedly connected with the corresponding longitudinal beam through a plurality of connecting members.

2. The housing according to claim 1, wherein The connecting seat is fixedly screwed with the edge beam through a plurality of first screw members; and / or The plurality of connecting members comprises a plurality of second screw members, each of the second screw members fixedly connecting the first side wall with the corresponding longitudinal beam.

3. The housing according to claim 2, wherein The longitudinal beam has two second side walls arranged oppositely along the second direction, each of the second side walls being provided with a plurality of first through holes arranged through along the second direction; Each of the first side walls is provided with a plurality of first screw holes arranged through along the second direction, the plurality of first screw holes being arranged one-to-one corresponding to the plurality of first through holes; Threaded ends of the plurality of second screw members pass through the plurality of first through holes and are screw-connected with the corresponding plurality of first screw holes.

4. The housing according to claim 3, wherein Apertures of the first through holes are arranged at least partially decreasingly along a direction from the second side wall to the first side wall; The second screw member comprises a first conical countersunk bolt, a threaded end of the first conical countersunk bolt being adapted to be screw-connected with the first screw hole, a head of the first conical countersunk bolt being adapted to be sunk in the first through hole.

5. The frame of any one of claims 3 or 4, wherein, An end portion of the plug-in portion away from the connecting seat is provided with a groove, the groove being communicated with the plurality of first screw holes.

6. The housing according to any one of claims 2 to 4, characterized in that The connecting seat is provided with a plurality of second through holes arranged through along the first direction, the plurality of second through holes being arranged on two sides of the plug-in portion along the second direction; Each of the edge beams is provided with a plurality of second screw holes corresponding to the plurality of second through holes; Threaded ends of the plurality of first screw members pass through the plurality of second through holes and are screw-connected with the corresponding plurality of second screw holes.

7. The housing according to claim 6, wherein Apertures of the second through holes are arranged at least partially decreasingly along a direction from the plug-in portion to the connecting seat; The first screw member comprises a second conical countersunk bolt, a threaded end of the second conical countersunk bolt being adapted to be screw-connected with the second screw hole, a head of the second conical countersunk bolt being adapted to be sunk in the second through hole.

8. The housing according to any one of claims 1 to 4, characterized in that The connecting seat is further provided with a plurality of welding holes arranged through along the first direction, the plurality of welding holes being arranged on two sides of the plug-in portion along the second direction, peripheries of the plurality of welding holes being adapted to be welded with the edge beam; and / or A periphery of the connecting seat is welded with the edge beam.

9. The housing according to any one of claims 1 to 4, characterized in that An end portion of the longitudinal beam is provided with a plug-in hole; The plug-in portion is inserted into the plug-in hole, and the connecting seat abuts against the end portion of the longitudinal beam.

10. The housing according to claim 9, wherein The plug-in part comprises a plurality of convex columns arranged at intervals along a third direction, one end of each of the plurality of convex columns being connected to the connecting seat, and the other end of each of the plurality of convex columns being inserted into the plug-in hole, the third direction being arranged perpendicularly to the first direction and the second direction.

11. The housing according to claim 10, wherein The plug-in hole of the longitudinal beam comprises a plurality of sub-holes arranged at intervals along a third direction, the plurality of sub-holes being arranged in one-to-one correspondence with the plurality of convex columns, and each of the sub-holes being used for plug-in assembly of the corresponding convex column.

12. A box applied to a battery pack, characterized by, The box body comprises the frame body according to any one of claims 1 to 11.

13. The case of claim 12, wherein, Further comprising a bottom plate, the bottom plate being welded and fixed with the plurality of longitudinal beams and / or the two edge beams, so that the bottom plate, the plurality of longitudinal beams and the two edge beams jointly enclose a plurality of cabin bodies, and the plurality of cabin bodies are used for mounting of battery modules.

14. A battery pack, characterized by The box body according to claim 12 or 13 is further included.

15. An electrical device, characterized by The battery pack according to claim 14 is further included.

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