Battery pack and electric motorcycle

Abstract

This invention provides a battery pack and an electric motorcycle. The battery pack includes a battery cylinder, battery components, a battery top cover, a first support structure, a battery bottom cover, and a second support structure. The battery cylinder has a mounting cavity, a first opening groove, and a second opening groove, which are respectively connected to the first and second opening grooves. The outer peripheral wall of the battery cylinder has a sliding groove structure, which includes a first and a second sliding groove that are connected. The width of the first sliding groove is smaller than the width of the second sliding groove. The sliding groove structure is used for sliding mounting on a slide rail of the frame. The battery components are disposed in the mounting cavity. Because each battery module has a connection through hole, the first integrated seat, multiple battery modules, and the second integrated seat are locked and fixed, thus locking the entire battery pack in the battery cylinder. This improves the internal anti-shake strength of the battery pack and avoids the problem of easy fracture or damage to the battery pack when subjected to vibration and drop, thereby improving the drop resistance of the battery pack.

Description

Technical Field

[0001] This invention relates to the technical field of power batteries, and in particular to a battery pack and an electric motorcycle. Background Technology

[0002] A battery pack, also known as a power battery, consumer battery, or energy storage battery, comprises battery modules, a thermal management system, a battery management system (BMS), electrical systems, and structural components. Battery packs are widely used in consumer electronics, new energy vehicle power systems, and energy storage applications. When used in new energy vehicle power and energy storage applications such as electric motorcycles, the battery pack must be installed on the vehicle body.

[0003] However, when the battery pack is installed on the frame, especially when it is fitted with the vehicle casing, the battery pack's fixation is put to a very high standard during driving. Common fitting structures can easily cause the battery pack to loosen inside the casing, failing to meet vibration resistance requirements. This can directly affect the battery pack's operating status and easily lead to short circuits in the battery pack.

[0004] Furthermore, since the battery pack has no fixed structure after being placed in the aluminum canister, and is supported solely by the upper and lower cover support structures, when the battery pack is subjected to vibration and drops, the support structure is prone to fractures or damage, affecting the internal working state of the battery pack and resulting in poor drop resistance. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery pack and electric motorcycle that can avoid the problem of short circuit in the battery pack and have good drop resistance.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A battery pack, comprising:

[0008] The battery cylinder has a mounting cavity, a first opening groove, and a second opening groove, the mounting cavity being connected to the first opening groove and the second opening groove respectively; the outer peripheral wall of the battery cylinder has a sliding groove structure, the sliding groove structure including a first sliding groove and a second sliding groove that are connected, the width of the first sliding groove being smaller than the width of the second sliding groove, the sliding groove structure being used for sliding mounting on the slide rail of the vehicle frame;

[0009] A battery assembly is disposed within the mounting cavity. The battery assembly includes a first integrated base, a second integrated base, an intermediate locking member, and a battery pack. The battery pack is disposed between the first integrated base and the second integrated base. The battery pack includes multiple battery modules that abut against each other in sequence. Each battery module has a connection through hole, and the connection through holes of adjacent battery modules are interconnected. The first integrated base has a first through hole, and the second integrated base has a second through hole. The intermediate locking member passes through the first through hole, the connection through holes of the multiple battery modules, and the second through hole, respectively, to lock and fix the first integrated base, the multiple battery modules, and the second integrated base.

[0010] The battery cover is located inside the first opening slot and is connected to the battery cylinder;

[0011] The first support structure has two ends that abut against the battery top cover and the side of the first integrated base away from the battery pack, respectively.

[0012] The lower battery cover is located within the second opening slot and is connected to the battery cylinder body;

[0013] The second support structure has two ends that abut against the side of the battery lower cover and the second integrated base away from the battery pack, respectively.

[0014] In one embodiment, the battery pack further includes a plurality of first locking members, the battery cover having a plurality of first connecting holes along the circumferential direction, and the battery cylinder having a plurality of first screw holes, all of which are connected to the first opening slot, and each of the first locking members is respectively inserted into the corresponding first connecting hole and the corresponding first screw hole.

[0015] In one embodiment, the battery pack further includes a plurality of second locking members. The lower cover of the battery has a plurality of second connecting holes along the circumferential direction. The battery cylinder also has a plurality of second screw holes. The plurality of second screw holes are all connected to the second opening slot. Each second locking member is respectively inserted into the corresponding second connecting hole and the corresponding second screw hole.

[0016] In one embodiment, the first integrated base has at least two first fixing slots, and the first support structure includes at least two first support springs, each of the first support springs protruding into the corresponding first fixing slot, and each of the first support springs elastically abutting against the battery cover.

[0017] In one embodiment, the first integrated base is further provided with a first mounting slot, and the battery pack further includes a first control board. The first control board is located in the first mounting slot and is fixedly connected to the first integrated base. The first control board is electrically connected to a plurality of battery modules respectively. At least one first support spring is provided on each side of the first control board.

[0018] In one embodiment, the second integrated base has at least two second fixing slots, and the second support structure includes at least two second support springs, each of the second support springs protruding into the corresponding second fixing slot, and each of the second support springs elastically abutting against the lower cover of the battery.

[0019] In one embodiment, the second integrated base is further provided with a second mounting slot, and the battery pack further includes a second control board. The second control board is located in the second mounting slot and is fixedly connected to the second integrated base. The second control board is electrically connected to a plurality of battery modules respectively. At least one second support spring is provided on each side of the second control board.

[0020] In one embodiment, the battery pack further includes a buffer pad, and each of the battery modules has an attachment area on its outer peripheral wall. The buffer pad is respectively bonded to the attachment areas of the plurality of battery modules; the buffer pad elastically abuts against the inner wall of the mounting cavity.

[0021] In one embodiment, the battery pack further includes a plurality of protective covers, one of which is provided on the outer peripheral wall of each pair of adjacent battery modules.

[0022] An electric motorcycle includes a frame and a battery pack as described in any of the above embodiments, wherein the frame is provided with a slide rail and the slide groove structure is slidably mounted on the slide rail.

[0023] Compared with the prior art, the present invention has at least the following advantages:

[0024] 1. In the aforementioned battery pack, the outer peripheral wall of the battery cylinder is formed with a groove structure. The groove structure includes a first groove and a second groove that are connected. The width of the first groove is smaller than the width of the second groove. This allows the groove structure to prevent the battery pack from swaying in the left-right and up-down directions of the vehicle frame after it is slidably installed on the slide rail of the vehicle frame. This avoids the battery pack not meeting the vibration resistance requirements when installed on the vehicle frame, and thus avoids the problem of battery short circuits that may easily occur inside the battery pack.

[0025] 2. In the aforementioned battery pack, the battery assembly is located between the first integrated base and the second integrated base. The battery assembly includes multiple battery modules, which are sequentially connected. Each battery module has a connection through hole, and the connection through holes of adjacent battery modules are interconnected. The first integrated base has a first through hole, and the second integrated base has a second through hole. The intermediate locking member is respectively inserted into the first through hole, the connection through hole of the multiple battery modules, and the second through hole, thereby locking and fixing the first integrated base, the multiple battery modules, and the second integrated base. In this way, the entire battery assembly is locked and fixed inside the battery cylinder, which improves the internal anti-shaking strength of the battery pack and avoids the problem of easy fracture or damage to the battery pack when there is vibration and drop, thus improving the drop resistance of the battery pack. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a battery pack according to one embodiment;

[0028] Figure 2 for Figure 1 An exploded view of the battery pack shown from another perspective;

[0029] Figure 2a for Figure 2 A partially enlarged schematic diagram of the battery pack shown;

[0030] Figure 2b for Figure 2 Another enlarged view of a portion of the battery pack shown;

[0031] Figure 3 for Figure 1 A cross-sectional view of the battery pack shown;

[0032] Figure 3a for Figure 3 A magnified view of point A of the battery pack shown;

[0033] Figure 4 for Figure 3 A partially enlarged schematic diagram of the battery pack shown;

[0034] Figure 4a for Figure 4 Enlarged view of point B of the battery pack shown;

[0035] Figure 5 for Figure 3 A partial structural diagram of the battery pack shown;

[0036] Figure 6 for Figure 5 An exploded view of the battery pack shown.

[0037] Figure 7 for Figure 6 A partial explosion diagram of the battery pack shown;

[0038] Figure 7a for Figure 7 Enlarged view of point C of the battery pack shown;

[0039] Figure 7b for Figure 7 A magnified view of point D of the battery pack shown;

[0040] Figure 8 for Figure 6 A cross-sectional view of the battery module of the battery pack shown;

[0041] Figure 9 for Figure 8 A schematic diagram of the battery module of the battery pack shown;

[0042] Figure 10 for Figure 9 A cross-sectional view of the battery module shown.

[0043] Figure 11 for Figure 9 A schematic diagram of the first cell support of the battery module shown;

[0044] Figure 12 for Figure 9 A schematic diagram of the second cell support of the battery module shown. Detailed Implementation

[0045] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] This application provides a battery pack including a battery cylinder, a battery assembly, a battery top cover, a first support structure, a battery bottom cover, and a second support structure. The battery cylinder has a mounting cavity, a first opening groove, and a second opening groove, the mounting cavity communicating with the first opening groove and the second opening groove respectively. A sliding groove structure is formed on the outer peripheral wall of the battery cylinder, the sliding groove structure including a first sliding groove and a second sliding groove that are connected, the width of the first sliding groove being smaller than the width of the second sliding groove, the sliding groove structure being used for sliding mounting on a vehicle frame rail. The battery assembly is disposed within the mounting cavity, the battery assembly including a first integrated base, a second integrated base, an intermediate locking member, and a battery pack, the battery pack being disposed between the first integrated base and the second integrated base, the battery pack including multiple battery modules, the multiple battery modules sequentially abutting against each other. Each battery module has a connection through hole, and the connection through holes of two adjacent battery modules are interconnected; the first integrated base has a first through hole, and the second integrated base has a second through hole. The intermediate locking member is respectively inserted into the first through hole, the connection through holes of the multiple battery modules, and the second through hole, so that the first integrated base, the multiple battery modules, and the second integrated base are locked and fixed; the battery top cover is located in the first opening groove and is connected to the battery cylinder; the two ends of the first support structure abut against the side of the battery top cover and the first integrated base away from the battery pack, respectively; the battery bottom cover is located in the second opening groove and is connected to the battery cylinder; the two ends of the second support structure abut against the side of the battery bottom cover and the second integrated base away from the battery pack, respectively.

[0049] The aforementioned battery pack has a groove structure formed on the outer peripheral wall of the battery cylinder. The groove structure includes a first groove and a second groove that are connected. The width of the first groove is smaller than the width of the second groove. This prevents the battery pack from swaying in the left-right and up-down directions of the vehicle frame after it is slidably mounted on the slide rails of the vehicle frame. This avoids the battery pack failing to meet the vibration resistance requirements when mounted on the vehicle frame, and thus avoids the problem of battery short circuits within the battery pack. The battery pack is located between the first integrated base and the second integrated base. The battery pack includes multiple battery modules, which are sequentially mounted on the slide rails of the vehicle frame. Next, since each battery module has a connection through hole, the connection through holes of two adjacent battery modules are interconnected. The first integrated base has a first through hole, and the second integrated base has a second through hole. The intermediate locking member is respectively inserted into the first through hole, the connection through holes of multiple battery modules, and the second through hole, so that the first integrated base, multiple battery modules, and the second integrated base are locked and fixed. In this way, the entire battery pack is locked and fixed in the battery cylinder body, which improves the internal anti-shaking strength of the battery pack and avoids the problem of easy bone fracture or damage when the battery pack is subjected to vibration and drop, thus improving the drop resistance of the battery pack.

[0050] To better understand the technical solution and beneficial effects of this application, the following detailed description is provided in conjunction with specific embodiments:

[0051] like Figures 1 to 3 As shown, a battery pack 10 in one embodiment includes a battery cylinder 100, a battery assembly 200, a battery top cover 300, a first support structure 400, a battery bottom cover 500, and a second support structure 600. The battery cylinder 100 has a mounting cavity 102, a first opening groove 104, and a second opening groove 106, respectively. The mounting cavity 102 communicates with the first opening groove 104 and the second opening groove 106. The battery assembly 200 is disposed within the mounting cavity 102. The battery top cover 300 and the battery bottom cover 500 are located at both ends of the battery assembly 200, and respectively abut against both ends of the battery assembly 200. The battery top cover 300 is located within the first opening groove 104 and connected to the battery cylinder 100; the battery bottom cover 500 is located within the second opening groove 106 and connected to the battery cylinder 100.

[0052] In one embodiment, the outer peripheral wall of the battery cylinder 100 is formed with a groove structure 103. The groove structure 103 includes a first groove 1032 and a second groove 1034 that are connected to each other. The width of the first groove 1032 is smaller than the width of the second groove 1034. The groove structure 103 is used to slide on the slide rail of the vehicle frame. In this embodiment, the cross-section of the groove structure 103 is T-shaped, which provides good anti-shaking performance after the groove structure 103 is slidably installed with the slide rail. Specifically, after the groove structure 103 is slidably installed on the slide rail of the vehicle frame, it can prevent the battery pack 10 from shaking in the left-right and up-down directions of the vehicle frame. The left-right direction is... Figure 1 The X-axis direction shown is vertical. Figure 1 Y-axis direction shown

[0053] like Figures 3 to 4 As shown, in one embodiment, the battery assembly 200 includes a first integrated base 210, a second integrated base 220, an intermediate locking member 230, and a battery pack 240. The battery pack 240 is disposed between the first integrated base 210 and the second integrated base 220, thereby locking the battery pack 240 between the first integrated base 210 and the second integrated base 220. The battery pack 240 includes a plurality of battery modules 243, which abut against each other in sequence. Each battery module 243 has a connection through hole 243e, and the connection through holes 243e of two adjacent battery modules 243 are interconnected. The first integrated base 210 has a first through hole 215, and the second integrated base 220 has a second through hole 223. The intermediate locking member 230 is respectively inserted into the first through hole 215, the connection through holes 243e of the plurality of battery modules 243 and the second through hole 223, so that the first integrated base 210, the plurality of battery modules 243 and the second integrated base 220 are locked and fixed.

[0054] In one embodiment, the two ends of the first support structure 400 abut against the sides of the battery top cover 300 and the first integrated base 210 opposite to the battery pack 240, respectively, so that the battery pack 10 has a better shockproof and drop-proof effect between the battery top cover 300 and the first integrated base 210. Further, the two ends of the second support structure 600 abut against the sides of the battery bottom cover 500 and the second integrated base 220 opposite to the battery pack 240, so that the battery pack 10 has a better shockproof and drop-proof effect between the battery bottom cover 500 and the second integrated base 220, thereby giving the battery pack 10 as a whole a better shockproof and drop-proof effect.

[0055] The aforementioned battery pack 10 has a groove structure 103 formed on the outer peripheral wall of the battery cylinder 100. The groove structure 103 includes a first groove 1032 and a second groove 1034 that are connected. The width of the first groove 1032 is smaller than the width of the second groove 1034. This prevents the battery pack 10 from swaying in the left-right and up-down directions of the vehicle frame after it is slidably mounted on the slide rail of the vehicle frame. This avoids the battery pack 10 failing to meet the vibration resistance requirements when mounted on the vehicle frame, and thus avoids the problem of battery short circuits easily occurring inside the battery pack 10. The aforementioned battery pack 10 has a battery assembly 240 disposed between the first integrated base 210 and the second integrated base 220. The battery assembly 240 includes multiple battery modules 243, which abut against each other in sequence. Each battery module 243 has a connection through hole 243e. The connection through holes 243e of two adjacent battery modules 243 are interconnected. The first integrated base 210 has a first through hole 215, and the second integrated base 220 has a second through hole 223. The intermediate locking member 230 is respectively inserted into the first through hole 215, the connection through holes 243e of multiple battery modules 243, and the second through hole 223, so that the first integrated base 210, multiple battery modules 243, and the second integrated base 220 are locked and fixed. In this way, the entire battery pack 240 is locked and fixed in the battery cylinder 100, which improves the anti-shaking strength inside the battery pack 10 and avoids the problem of easy bone fracture or damage when the battery pack 10 is subjected to vibration and drop, thus improving the drop resistance of the battery pack 10.

[0056] like Figure 2 and Figure 2a As shown, in one embodiment, the battery pack 10 further includes a plurality of first locking elements (not shown). The battery cover 300 has a plurality of first connecting holes 302 circumferentially formed, and the battery cylinder 100 also has a plurality of first screw holes 105. All of the first screw holes 105 communicate with the first opening slot 104. Each first locking element passes through a corresponding first connecting hole 302 and a corresponding first screw hole 105, thereby reliably fixing the battery cover 300 to the battery cylinder 100. In this embodiment, each first locking element can be a screw or a bolt.

[0057] like Figure 2 and Figure 2bAs shown, in one embodiment, the battery pack 10 further includes a plurality of second locking members 700. The battery lower cover 500 has a plurality of second connecting holes 502 circumferentially formed, and the battery cylinder 100 also has a plurality of second screw holes (not shown). All of the second screw holes communicate with the second opening slot 106. Each second locking member 700 passes through a corresponding second connecting hole 502 and a corresponding second screw hole, thereby reliably fixing the battery lower cover 500 to the battery cylinder 100. In this embodiment, each second locking member 700 can be a screw or a bolt.

[0058] like Figures 3 to 5 As shown, in one embodiment, the first integrated base 210 has at least two first fixing slots 212, and the first support structure 400 includes at least two first support springs 410. Each first support spring 410 protrudes into a corresponding first fixing slot 212, and each first support spring 410 elastically abuts against the battery cover 300, thereby reliably fixing each first support spring 410 to the first integrated base 210. In this embodiment, each first support spring 410 is a silicone or rubber component.

[0059] like Figures 3 to 5 As shown, in one embodiment, the first integrated base 210 is further provided with a first mounting groove 214, and the battery pack 10 further includes a first control board 800. The first control board 800 is located in the first mounting groove 214 and is fixedly connected to the first integrated base 210. The first control board 800 is electrically connected to a plurality of battery modules 243 respectively. At least one first support spring 410 is provided on each side of the first control board 800.

[0060] like Figures 3 to 5 As shown, in one embodiment, the second integrated base 220 has at least two second fixing slots 222, and the second support structure 600 includes at least two second support springs 610. Each second support spring 610 protrudes into a corresponding second fixing slot 222, and each second support spring 610 elastically abuts against the battery lower cover 500, thereby reliably fixing each second support spring 610 to the second integrated base 220. In this embodiment, each second support spring 610 is a silicone or rubber component.

[0061] like Figures 3 to 5As shown, in one embodiment, the second integrated base 220 is further provided with a second mounting groove 224, and the battery pack 10 further includes a second control board 900. The second control board 900 is located in the second mounting groove 224 and is fixedly connected to the second integrated base 220. The second control board 900 is electrically connected to a plurality of battery modules 243 respectively. At least one second support spring 610 is provided on each side of the second control board 900.

[0062] like Figures 4 to 6 As shown, in one embodiment, the battery pack 10 further includes buffer pads 1100. Each battery module 243 has an attachment area on its outer peripheral wall, and the buffer pads 1100 are respectively bonded to the attachment areas of multiple battery modules 243. The buffer pads 1100 elastically abut against the inner wall of the mounting cavity 102, allowing the battery modules 243 to be effectively buffered and shock-absorbing within the battery housing 100. In this embodiment, the buffer pads 1100 extend axially along the battery assembly 200. Specifically, there are multiple buffer pads 1100, distributed circumferentially along the battery assembly 200, allowing the battery modules 243 to be effectively buffered and shock-absorbing within the battery housing 100.

[0063] like Figures 4 to 6 As shown, in one embodiment, the battery pack 240 also includes a plurality of protective covers 242. One protective cover 242 is provided on the outer peripheral wall of each pair of adjacent battery modules 243 to avoid the problem of creepage distance between the copper busbars of the modules due to the small gap with the battery cylinder 100. Compared with the traditional method of preventing creepage by applying glue, the battery pack 10 has better aesthetics and practicality.

[0064] like Figure 7 , Figure 8 and Figure 10As shown, further, each battery module 243 has a limiting protrusion 2432 on its first end side and a limiting groove 2434 on its second end side. The limiting protrusion 2432 of one of two adjacent battery modules 243 is engaged into the limiting groove 2434 of the other battery module 243, so that the two adjacent battery modules 243 are engaged and fixed along the axial direction. In this embodiment, the number of battery modules 243 is m, and the m battery modules 243 are sequentially engaged and fixed along the axial direction, where m is an integer greater than or equal to 2. Furthermore, the second end side of the first battery module 243 has a limiting groove 2434, and the end face of the first integrated base 210 adjacent to the first battery module 243 has a protruding engaging protrusion 211. The engaging protrusion 211 is engaged into the limiting groove 2434 of the first battery module 243, so that the first integrated base 210 and the first battery module 243 are engaged and fixed along the axial direction. Furthermore, the first end of the m-th battery module 243 is provided with a limiting protrusion 2432, and the second integrated base 220 is provided with a snap-fit ​​groove 221 on the end face adjacent to the m-th battery module 243. The limiting protrusion 2432 of the m-th battery module 243 is snapped into the snap-fit ​​groove 221, so that the m-th battery module 243 and the second integrated base 220 are fixedly snapped together axially.

[0065] like Figure 7 and Figure 8 As shown, the intermediate locking member 230 further includes a locking screw 2302 and a locking nut 2304. The locking screw 2302 is respectively inserted into the first through hole 215, the connection through holes 243e of the plurality of battery modules 243 and the second through hole 223. The screwed part of the locking screw 2302 is located on the side of the second integrated base 220 opposite to the first integrated base 210. The locking nut 2304 is sleeved on the screwed part and screwed to the locking screw 2302. The locking nut 2304 abuts against the side of the second integrated base 220 opposite to the first integrated base 210.

[0066] like Figure 9 and Figure 10As shown, each battery module 243 is further provided with two heat dissipation fins 2435 on both sides. The heat dissipation fins 2435 of two adjacent battery modules 243 abut against each other, so that the heat of the two adjacent battery modules 243 can be dissipated through the heat dissipation fins 2435, and at the same time, the two adjacent battery modules 243 have a better buffering and shock absorption effect. In this embodiment, each heat dissipation fin 2435 includes a heat dissipation sheet 2436 and a copper-nickel composite sheet 2438 stacked together, so that the heat dissipation fin 2435 has a better heat dissipation and shock absorption effect. In use, the heat from the internal battery cell is conducted to the internal sheet, the internal sheet is conducted to the heat dissipation fin, the heat is then conducted to the external sheet from the tabs on both sides of the heat dissipation fin, and then the heat is conducted to the outside of the battery body 100 from the external sheets, forming a good natural heat conduction structure. Specifically, the locking screw 2302 is a self-tapping screw. Each battery module 243 is locked together by the locking screw 2302. After the nickel sheet is soldered onto the battery, the two ends of the nickel sheet are attached with a plastic film for heat conduction, insulation, and shock absorption. Then, through the cooperation between the modules, an aluminum sheet is placed between the modules to conduct heat through the plastic film and then through the aluminum sheet when the internal cells are working. Both materials have good heat conduction properties. Before the modules are assembled, the upper and lower brackets are designed with positioning grooves and foolproof design to ensure safe assembly. Finally, the assembled battery pack 10 is locked with screws and anti-loosening nuts to complete the assembly.

[0067] See also Figure 3 and Figure 4 Furthermore, each battery module 243 includes a first cell bracket 243a and a second cell bracket 243b, and see also... Figure 10The first cell bracket 243a has a positioning protrusion 2431, and the second cell bracket 243b has a positioning groove 2433. The positioning protrusion 2431 is located within the positioning groove 2433, so that the first cell bracket 243a and the second cell bracket 243b are relatively fixedly positioned. The limiting protrusion 2432 is provided on the end face of the first cell bracket 243a opposite to the second cell bracket 243b, and the limiting groove 2434 is provided on the end face of the second cell bracket 243b opposite to the first cell bracket 243a. Furthermore, each battery module 243 also includes a fixing member 243c. A positioning protrusion 2431 has a first fixing hole 2432, which communicates with a limiting groove 2434. The second cell bracket 243b also has a second fixing hole 2434, which communicates with a positioning groove 2433. The fixing member 243c passes through the first fixing hole 2432 and the second fixing hole 2434 respectively, so that the first cell bracket 243a and the second cell bracket 243b are relatively fixedly connected. Furthermore, the connection via 243e includes a first connection via 243e opened in the first cell bracket 243a and a second connection via 243e opened in the second cell bracket 243b, which communicate with each other. See also... Figure 9 and Figure 10 Furthermore, each battery module 243 includes a cylindrical cell 243d, which is disposed between the first cell support 243a and the second cell support 243b. The cylindrical cell serves to provide electrical storage and input / output.

[0068] See also Figure 7 , Figure 7a , Figures 7b to 10 Furthermore, each battery module 243 has a first end side with a foolproof protrusion 243f and a second end side with a foolproof slot 243h. Adjacent battery modules 243 are assembled and fitted together via the foolproof protrusion 243f and the foolproof slot 243h, effectively preventing mistaken assembly and ensuring reliable assembly of adjacent battery modules 243 according to a predetermined pattern. When modules are assembled layer by layer, each layer provides a foolproof direction, preventing incorrect assembly of structural components. Even novice production line workers can assemble them with ease. This technology effectively solves the problem of preventing battery short circuits and greatly improves the safety of battery assembly.

[0069] like Figures 9 to 12As shown, each battery module 243 is further provided with edge reinforcing ribs 2438 on both its first and second ends to provide support for the bracket and prevent short circuits caused by contact between copper-nickel composite sheets 2438. Edge reinforcing ribs 2438 are provided on the ends of both the first cell bracket 243a and the second cell bracket 243b. When layers are stacked, the edge reinforcing ribs 2438 between the cell brackets provide good isolation and support, preventing short circuits caused by contact between nickel sheets and reducing the need for fiberboard component isolation. After designing the edge reinforcing ribs 2438, a protective film is added to the surface of the nickel sheets on both sides of the bracket, and an aluminum sheet is added in the middle for heat conduction to both sides. This provides good support and isolation while also ensuring good heat conduction. In this embodiment, the heat sink is positioned within the positioning area enclosed by the edge reinforcing ribs, allowing the corresponding heat sink to be installed and positioned on both the first and second ends of the battery module.

[0070] like Figure 2 and Figure 2a As shown, the surface of the battery cover 300 is provided with a female charging / discharging port 310, which can be directly plugged into and disconnected with the male plug at the vehicle end, making the use process simple and convenient.

[0071] like Figure 2 and Figure 2a As shown, the outer surface of the battery cover 300 is further provided with a rubber pad 320 to provide cushioning and shock absorption.

[0072] This application also provides an electric motorcycle, including a frame and a battery pack 10 as described in any of the above embodiments, wherein the frame is provided with a slide rail and the slide groove structure 103 is slidably mounted on the slide rail.

[0073] Compared with the prior art, the present invention has at least the following advantages:

[0074] 1. In the aforementioned battery pack 10, the outer peripheral wall of the battery cylinder 100 is formed with a sliding groove structure 103. The sliding groove structure 103 includes a first sliding groove 1032 and a second sliding groove 1034 that are connected. The width of the first sliding groove 1032 is smaller than the width of the second sliding groove 1034. This allows the sliding groove structure 103 to prevent the battery pack 10 from swaying in the left-right and up-down directions of the vehicle frame after it is slidably installed on the slide rail of the vehicle frame. This avoids the battery pack 10 from failing to meet the vibration resistance requirements when installed on the vehicle frame, and thus avoids the problem of battery short circuits that may easily occur inside the battery pack 10.

[0075] 2. The aforementioned battery pack 10, with battery assembly 240 disposed between the first integrated base 210 and the second integrated base 220, includes multiple battery modules 243 that abut against each other in sequence. Each battery module 243 has a connecting through-hole 243e, and the connecting through-holes 243e of adjacent battery modules 243 are interconnected. The first integrated base 210 has a first through-hole 215, and the second integrated base 220 has a second through-hole 223. An intermediate locking member is also present. 230 is respectively inserted into the first through hole 215, the connection through hole 243e of the multiple battery modules 243 and the second through hole 223, so that the first integrated seat 210, the multiple battery modules 243 and the second integrated seat 220 are locked and fixed. In this way, the entire battery pack 240 is locked and fixed in the battery cylinder 100, which improves the anti-shaking strength inside the battery pack 10, avoids the problem of easy bone fracture or damage when the battery pack 10 is subjected to vibration and drop, and improves the drop resistance of the battery pack 10.

[0076] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A battery pack, characterized in that, include: The battery cylinder has a mounting cavity, a first opening groove, and a second opening groove, the mounting cavity being connected to the first opening groove and the second opening groove respectively; the outer peripheral wall of the battery cylinder has a sliding groove structure, the sliding groove structure including a first sliding groove and a second sliding groove that are connected, the width of the first sliding groove being smaller than the width of the second sliding groove, the sliding groove structure being used for sliding mounting on the slide rail of the vehicle frame; A battery assembly is disposed within the mounting cavity. The battery assembly includes a first integrated base, a second integrated base, an intermediate locking member, and a battery pack. The battery pack is disposed between the first integrated base and the second integrated base. The battery pack includes multiple battery modules that abut against each other in sequence. Each battery module has a connection through hole, and the connection through holes of adjacent battery modules are interconnected. The first integrated base has a first through hole, and the second integrated base has a second through hole. The intermediate locking member passes through the first through hole, the connection through holes of the multiple battery modules, and the second through hole, respectively, to lock and fix the first integrated base, the multiple battery modules, and the second integrated base. The battery cover is located inside the first opening slot and is connected to the battery cylinder; The first support structure has two ends that abut against the battery top cover and the side of the first integrated base away from the battery pack, respectively. The lower battery cover is located within the second opening slot and is connected to the battery cylinder body; The second support structure has two ends that abut against the side of the battery lower cover and the second integrated base away from the battery pack, respectively. The first integrated base has at least two first fixing slots, and the first support structure includes at least two first support springs, each of which protrudes into the corresponding first fixing slot and elastically abuts against the upper cover of the battery; the second integrated base has at least two second fixing slots, and the second support structure includes at least two second support springs, each of which protrudes into the corresponding second fixing slot and elastically abuts against the lower cover of the battery. Each battery module has a limiting protrusion on its first end and a limiting groove on its second end. The limiting protrusion of one battery module of two adjacent battery modules can be inserted into the limiting groove of the other battery module.

2. The battery pack according to claim 1, characterized in that, It also includes a plurality of first locking elements. The battery cover has a plurality of first connecting holes along the circumference. The battery cylinder also has a plurality of first screw holes. The plurality of first screw holes are all connected to the first opening slot. Each first locking element is respectively inserted into the corresponding first connecting hole and the corresponding first screw hole.

3. The battery pack according to claim 1, characterized in that, It also includes multiple second locking elements. The lower cover of the battery has multiple second connecting holes along the circumference. The battery cylinder also has multiple second screw holes. All of the multiple second screw holes are connected to the second opening slot. Each second locking element is respectively inserted into the corresponding second connecting hole and the corresponding second screw hole.

4. The battery pack according to claim 1, characterized in that, The first integrated base also has a first mounting slot, and the battery pack also includes a first control board. The first control board is located in the first mounting slot and is fixedly connected to the first integrated base. The first control board is electrically connected to a plurality of battery modules respectively. At least one first support spring is provided on each side of the first control board.

5. The battery pack according to claim 4, characterized in that, Each battery module has a first end side with a foolproof protrusion and a second end side with a foolproof slot. Adjacent battery modules are assembled and fitted together through the foolproof protrusion and the foolproof slot.

6. The battery pack according to claim 1, characterized in that, The second integrated base also has a second mounting slot, and the battery pack also includes a second control board. The second control board is located in the second mounting slot and is fixedly connected to the second integrated base. The second control board is electrically connected to the plurality of battery modules respectively. At least one second support spring is provided on each side of the second control board.

7. The battery pack according to claim 6, characterized in that, Each battery module has edge reinforcing ribs on its first and second ends.

8. The battery pack according to claim 1, characterized in that, It also includes buffer pads, and each of the battery modules has an attachment area on its outer peripheral wall. The buffer pads are respectively bonded to the attachment areas of the multiple battery modules; the buffer pads elastically abut against the inner wall of the mounting cavity.

9. The battery pack according to claim 1, characterized in that, The battery pack also includes multiple protective covers, with one protective cover provided on the outer peripheral wall of each pair of adjacent battery modules.

10. An electric motorcycle, characterized in that, The vehicle includes a frame and a battery pack according to any one of claims 1 to 9, wherein the frame is provided with a slide rail and the slide groove structure is slidably mounted on the slide rail.

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