Shock absorbing structure of electric motorcycle battery pack and battery pack

Abstract

The present disclosure provides an electric motorcycle battery pack damping structure and a battery pack; the electric motorcycle battery pack damping structure comprises an outer shell, a battery pack, a stabilizing frame, a buffer spacer, a support arch and a plurality of lifting cross beams; the battery pack is arranged in the outer shell; the plurality of lifting cross beams are arranged side by side in the inner part of the outer shell, the battery pack is horizontally extended and arranged on each lifting cross beam, and the bottom of the battery pack is separated from the inner wall bottom of the outer shell; the stabilizing frame is arranged in the outer shell; the inner wall of the stabilizing frame is horizontally expanded along the battery pack and covers the outside of the battery pack, so that the battery pack is horizontally stabilized in the stabilizing frame; the buffer spacer is arranged between the inner wall of the stabilizing frame and the battery pack, so that the battery pack is interference-fitted in the stabilizing frame; the support arch is fixedly arranged on the stabilizing frame and abuts against the inner wall top of the outer shell, so that the stabilizing frame can tightly fix the battery pack on each lifting cross beam, and finally reduce the horizontal shaking of the battery pack in the outer shell.

Description

Technical Field

[0001] This disclosure relates to the technical field of electric motorcycle power supplies, and in particular to a shock-absorbing structure and battery pack for electric motorcycle battery packs. Background Technology

[0002] Electric motorcycles are widely used for rural freight transport due to their superior climbing ability, load-bearing capacity, and high-speed stability. However, rural roads are often rugged and uneven, with frequent gravel and potholes, making electric motorcycles prone to bumps and vibrations that can easily be transmitted to the battery pack through the undercarriage. To address this, most manufacturers equip electric motorcycles with shock-absorbing structures for batteries, such as those disclosed in Chinese patent document CN218448286U. These structures primarily reduce undercarriage vibrations through anti-vibration pads on the aluminum cylinder lower cover. However, as market demands for longer driving ranges for electric motorcycles increase, battery packs must be enlarged. Furthermore, the power compartment restricts the battery casing to be larger laterally, increasing the gap between the battery pack and the casing. This makes the battery pack more susceptible to lateral swaying from undercarriage vibrations. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a shock-absorbing structure and battery pack for electric motorcycles that can adapt to extended electric motorcycle battery packs and has good vibration reduction effect.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A shock absorption structure for an electric motorcycle battery pack includes:

[0006] outer shell;

[0007] A battery pack, wherein the battery pack is disposed within the housing;

[0008] The shock absorption structure of the electric motorcycle battery pack also includes a stabilizing frame, buffer plates, supporting arches, and multiple lifting beams.

[0009] Multiple lifting beams are arranged side-by-side inside the outer casing. The battery pack extends laterally and rests on each of the lifting beams, with the bottom of the battery pack separated from the bottom of the inner wall of the outer casing. A stabilizing frame is disposed inside the outer casing. The inner wall of the stabilizing frame extends laterally along the battery pack and covers the battery pack. A buffer spacer is laid between the inner wall of the stabilizing frame and the battery pack to allow the battery pack to be interference-fitted into the stabilizing frame. A supporting arch is fixedly disposed on the stabilizing frame and abuts against the top of the inner wall of the outer casing to press and fix the battery pack onto each of the lifting beams.

[0010] In some embodiments, the stabilizing frame includes a top panel and two side panels; the two side panels are fixedly disposed on the edge of the top panel and are positioned opposite each other; the top panel and each of the side panels extend laterally along the battery pack and are respectively supported against the battery pack by the buffer spacer.

[0011] In some embodiments, the buffer spacer includes a top buffer portion and two side buffer portions. The top buffer portion is laid between the top enclosure and the top surface of the battery pack, and each of the side buffer portions is laid between a corresponding side enclosure and a corresponding side of the battery pack.

[0012] In some embodiments, the first end of each of the lifting beams is fixedly connected to one of the side panels, and the second end of each of the lifting beams is fixedly connected to the other side panel.

[0013] In some embodiments, the stabilizing frame is further provided with a perforated window, and the buffer plate is opposite to the inner wall of the outer shell through the perforated window.

[0014] In some embodiments, the electric motorcycle battery pack shock absorption structure further includes a lifting base; the lifting base is fixedly disposed on the bottom of the inner wall of the outer casing and abuts against the bottom of the battery pack.

[0015] In some embodiments, the supporting arch includes a bent arch portion and two welded portions; each of the welded portions is integrally connected to one end of the bent arch portion, and each of the welded portions is welded to the top surface of the stabilizing frame; the bent arch portion abuts against the top of the inner wall of the outer shell, so that the top surface of the stabilizing frame and the top of the inner wall of the outer shell maintain a gap.

[0016] In some embodiments, the outer casing is provided with a locking member, the bent arched portion is provided with a threaded locking hole, and the outer casing is provided with a through-pin hole; the locking member passes through the through-pin hole and is threadedly locked into the threaded locking hole.

[0017] In some embodiments, the side wall of the outer casing has multiple mounting positions, and each end of the lifting beam is respectively matched with one of the mounting positions and fixedly connected to the stabilizing frame.

[0018] A battery pack, including the shock absorption structure of the electric motorcycle battery pack according to any of the above embodiments.

[0019] Compared with the prior art, this disclosure has at least the following advantages:

[0020] The aforementioned electric motorcycle battery pack shock absorption structure, because the battery pack extends laterally and is mounted on parallel lifting beams, can lift the entire battery pack through these beams, separating the bottom of the battery pack from the bottom of the inner wall of the outer casing. This reduces the transmission of vibrations from the vehicle's undercarriage to the battery pack through the outer casing. Simultaneously, because the inner wall of the stabilizing frame within the outer casing extends laterally along the battery pack, it can laterally enclose the battery pack. Furthermore, the buffer spacer between the inner wall of the stabilizing frame and the battery pack provides an interference fit, ensuring lateral stability within the stabilizing frame. Additionally, the support arches fixed to the stabilizing frame abut against the top of the inner wall of the outer casing, further pressing and securing the battery pack to the lifting beams, ultimately reducing lateral swaying of the battery pack within the outer casing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the shock absorption structure of an electric motorcycle battery pack according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 A cross-sectional view of the shock absorption structure of the electric motorcycle battery pack shown.

[0024] Figure 3 for Figure 1 A longitudinal sectional view of the shock absorption structure of the electric motorcycle battery pack shown.

[0025] Figure 4 for Figure 3 The enlarged view shown at point A in the middle;

[0026] Figure 5 for Figure 2 The enlarged view shown at point B in the middle;

[0027] Figure 6 for Figure 3 A magnified view of the area shown at point C.

[0028] Figure label:

[0029] 100. Outer casing; 101. Through-bolt hole; 102. Mounting position;

[0030] 200. Battery pack;

[0031] 300. Stable frame; 310. Top panel; 320. Side panel; 301. Perforated window frame;

[0032] 400. Buffer partition; 410. Top buffer section; 420. Side buffer section;

[0033] 500, Supporting arch; 510, Bent arch section; 5101, Threaded lock hole; 520, Welded section;

[0034] 600. Raise the crossbeam;

[0035] 700. Raise the base. Detailed Implementation

[0036] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0037] 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.

[0038] 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 disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0040] Please see Figure 1 and Figure 2An embodiment of the electric motorcycle battery pack shock absorption structure includes an outer shell 100, a battery pack 200, a stabilizing frame 300, a buffer plate 400, a supporting arch 500, and multiple lifting beams 600; the battery pack 200 is disposed inside the outer shell 100; the multiple lifting beams 600 are arranged side by side inside the outer shell 100, the battery pack 200 extends laterally and rests on each lifting beam 600, and the bottom of the battery pack 200 is separated from the bottom of the inner wall of the outer shell 100; the stabilizing frame 300... The battery pack 200 is installed inside the outer casing 100; the inner wall of the stabilizing frame 300 extends laterally along the battery pack 200 and covers the battery pack 200; the buffer partition 400 is laid between the inner wall of the stabilizing frame 300 and the battery pack 200 so that the battery pack 200 is interference-fitted with the stabilizing frame 300; the supporting arch 500 is fixedly installed on the stabilizing frame 300 and abuts against the top of the inner wall of the outer casing 100 so that the stabilizing frame 300 presses and fixes the battery pack 200 on each lifting crossbeam 600.

[0041] It is understandable that, since the battery pack 200 extends laterally and is mounted on the parallel lifting beams 600, the battery pack 200 can be lifted up by the lifting beams 600, so that the bottom of the battery pack 200 is separated from the bottom of the inner wall of the outer casing 100, thereby reducing the vibration of the vehicle underside transmitted to the battery pack 200 through the outer casing 100. Meanwhile, since the inner wall of the stabilizing frame 300 located inside the outer casing 100 extends laterally along the battery pack 200, the stabilizing frame 300 can cover the battery pack 200 laterally. Furthermore, the buffer spacer 400 laid between the inner wall of the stabilizing frame 300 and the battery pack 200 allows the battery pack 200 to be interference-fitted into the stabilizing frame 300, thereby ensuring that the battery pack 200 remains laterally stable within the stabilizing frame 300. Additionally, the supporting arch 500 fixedly installed on the stabilizing frame 300 abuts against the top of the inner wall of the outer casing 100, thereby enabling the stabilizing frame 300 to press and fix the battery pack 200 onto each lifting beam 600, ultimately reducing the lateral swaying of the battery pack 200 within the outer casing 100.

[0042] Please see Figure 1 and Figure 3In some embodiments, the stabilizing frame 300 includes a top panel 310 and two side panels 320. The two side panels 320 are fixedly disposed on the edge of the top panel 310 and are positioned opposite each other. The top panel 310 and each side panel 320 extend laterally along the battery pack 200 and are respectively supported by buffer partitions 400. It can be understood that since each side panel 320 extending laterally along the battery pack 200 is supported by buffer partitions 400 and the two side panels 320 are positioned opposite each other, the swaying of the battery pack 200 on both sides can be reduced by the side panels 320 and the buffer partitions 400, and the top panel 310 extending laterally along the battery pack 200 is supported by the buffer partitions 400 to reduce the shaking of the battery pack 200 in the upper lateral direction.

[0043] Please see Figure 1 and Figure 3 In some embodiments, the buffer spacer 400 includes a top buffer portion 410 and two side buffer portions 420. The top buffer portion 410 is laid between the top enclosure 310 and the top surface of the battery pack 200, and each side buffer portion 420 is laid between a corresponding side enclosure 320 and a corresponding side surface of the battery pack 200. It can be understood that because the top buffer portion 410 is laid between the top enclosure 310 and the top surface of the battery pack 200, the top enclosure 310 can press the top buffer portion 410 against the top surface of the battery pack 200, thereby reducing vibration of the top surface of the battery pack 200. Meanwhile, since each side buffer 420 is laid between a corresponding side panel 320 and a corresponding side of the battery pack 200, the side panel 320 can press the side of the battery pack 200 through the side buffer 420, thereby reducing the shaking of the corresponding side of the battery pack 200 through each side buffer 420, that is, reducing the shaking and vibration of the battery pack 200 in the lateral direction.

[0044] Please see Figure 1 and Figure 3 In some embodiments, the first end of each lifting beam 600 is fixedly connected to a side panel 320, and the second end of each lifting beam 600 is fixedly connected to another side panel 320. It is understood that by fixing the first end of each lifting beam 600 to a side panel 320 and the second end of each lifting beam 600 to another side panel 320, a stable connection structure can be formed between each lifting beam 600 and the stabilizing frame 300, thereby reducing the displacement of the stabilizing frame 300 carrying the battery pack 200 on the lifting beam 600 under vibration. In this embodiment, each side panel 320 is connected to the end of each lifting beam 600 by screws.

[0045] Please see Figure 1 , Figure 3 and Figure 4 In some embodiments, the stabilizing frame 300 is further provided with a perforated window 301, and the buffer spacer 400 is opposite to the inner wall of the outer casing 100 through the perforated window 301. It can be understood that the perforated window 301 can not only reduce the weight of the stabilizing frame 300 to reduce vibration, but also achieve heat dissipation. Furthermore, since the buffer spacer 400 is opposite to the inner wall of the outer casing 100 through the perforated window 301 on the stabilizing frame 300, when the battery pack 200 expands during charging, the buffer spacer 400 can be squeezed into the perforated window 301 by the battery pack 200, so that each battery pack 200 can provide more expandable space.

[0046] Please see Figures 2 to 3 In some embodiments, the electric motorcycle battery pack shock absorption structure further includes a lifting base 700; the lifting base 700 is fixedly disposed on the bottom of the inner wall of the outer casing 100 and abuts against the bottom of the battery pack 200. It can be understood that by having the lifting base 700, fixed to the bottom of the inner wall of the outer casing 100, abut against the bottom of the battery pack 200, more support can be provided to the battery pack 200 on the lifting beam 600, so that the battery pack 200 is stably held within the outer casing 100. See also... Figure 1 In this embodiment, a partition space is formed between adjacent lifting beams 600, and the lifting base 700 abuts against the bottom of the battery pack 200 through the partition space.

[0047] Please see Figure 2 and Figure 5 In some embodiments, the support arch 500 includes a bent arch portion 510 and two welded portions 520; each welded portion 520 is integrally connected to one end of the bent arch portion 510, and each welded portion 520 is welded to the top surface of the stabilizing frame 300; the bent arch portion 510 abuts against the top of the inner wall of the outer shell 100 so that the top surface of the stabilizing frame 300 and the top of the inner wall of the outer shell 100 maintain a gap. It is understandable that since each welded part 520 integrally connected to the bent arch 510 is welded to the top surface of the stabilizing frame 300 and abuts against the top of the inner wall of the outer shell 100 through the bent arch 510, a gap can be maintained between the top surface of the stabilizing frame 300 and the top of the inner wall of the outer shell 100, thereby reducing the contact area between the top of the inner wall of the outer shell 100 and the top surface of the stabilizing frame 300, and ultimately reducing the vibration transmission between the outer shell 100 and the stabilizing frame 300.

[0048] Please see Figure 2 and Figure 5In some embodiments, the outer casing 100 is provided with a locking member (not shown), the bent arch portion 510 has a threaded locking hole 5101, and the outer casing 100 has a through-pin hole 101; the locking member passes through the through-pin hole 101 and is threadedly locked into the threaded locking hole 5101. It can be understood that because the locking member passes through the through-pin hole 101 on the outer casing 100 and is threadedly locked into the threaded locking hole 5101 on the bent arch portion 510, a locking connection structure can be formed between the supporting arch 500 and the outer casing 100, thereby improving the connection strength between the supporting arch 500 and the top of the inner wall of the outer casing 100. In this embodiment, the locking member can be a screw or a bolt.

[0049] Please see Figure 1 and Figure 6 In some embodiments, a plurality of mounting positions 102 are provided on the side wall of the outer casing 100; each end of the lifting beam 600 is respectively matched with a corresponding mounting position 102 and fixedly connected to the stabilizing frame 300. It can be understood that since each end of the lifting beam 600 is respectively matched with a corresponding mounting position 102 on the side wall of the outer casing 100, the lifting beam 600 can be connected to the side wall of the outer casing 100, and by fixing each end of the lifting beam 600 to the stabilizing frame 300, the lifting beam 600 can be stably mounted inside the outer casing 100, making it less prone to lateral slippage.

[0050] Please see Figure 1 and Figure 2 This disclosure also provides a battery pack, including the electric motorcycle battery pack shock absorption structure of any of the above embodiments. It can be understood that by applying the electric motorcycle battery pack shock absorption structure of this disclosure to the battery pack, since the battery pack 200 extends laterally and is mounted on each of the parallel lifting beams 600, the entire battery pack 200 can be lifted by each lifting beam 600, thus separating the bottom of the battery pack 200 from the bottom of the inner wall of the outer casing 100, thereby reducing the transmission of vibrations from the vehicle floor to the battery pack 200 through the outer casing 100. Meanwhile, since the inner wall of the stabilizing frame 300 located inside the outer casing 100 extends laterally along the battery pack 200, the stabilizing frame 300 can cover the battery pack 200 laterally. Furthermore, the buffer spacer 400 laid between the inner wall of the stabilizing frame 300 and the battery pack 200 allows the battery pack 200 to be interference-fitted into the stabilizing frame 300, thereby ensuring that the battery pack 200 remains laterally stable within the stabilizing frame 300. Additionally, the supporting arch 500 fixedly installed on the stabilizing frame 300 abuts against the top of the inner wall of the outer casing 100, thereby enabling the stabilizing frame 300 to press and fix the battery pack 200 onto each lifting beam 600, ultimately reducing the lateral swaying of the battery pack 200 within the outer casing 100.

[0051] Compared with the prior art, this disclosure has at least the following advantages:

[0052] The aforementioned electric motorcycle battery pack shock absorption structure, because the battery pack 200 extends laterally and is mounted on each of the parallel lifting beams 600, can lift the entire battery pack 200 through each lifting beam 600, thus separating the bottom of the battery pack 200 from the bottom of the inner wall of the outer shell 100, thereby reducing the transmission of vibration from the vehicle bottom to the battery pack 200 through the outer shell 100. Meanwhile, since the inner wall of the stabilizing frame 300 located inside the outer casing 100 extends laterally along the battery pack 200, the stabilizing frame 300 can cover the battery pack 200 laterally. Furthermore, the buffer spacer 400 laid between the inner wall of the stabilizing frame 300 and the battery pack 200 allows the battery pack 200 to be interference-fitted into the stabilizing frame 300, thereby ensuring that the battery pack 200 remains laterally stable within the stabilizing frame 300. Additionally, the supporting arch 500 fixedly installed on the stabilizing frame 300 abuts against the top of the inner wall of the outer casing 100, thereby enabling the stabilizing frame 300 to press and fix the battery pack 200 onto each lifting beam 600, ultimately reducing the lateral swaying of the battery pack 200 within the outer casing 100.

[0053] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A shock absorption structure for an electric motorcycle battery pack, comprising: outer shell; A battery pack, wherein the battery pack is disposed within the housing; The electric motorcycle battery pack shock absorption structure is characterized in that it further includes a stabilizing frame, a buffer plate, a supporting arch, and multiple lifting beams; Multiple lifting beams are arranged side-by-side inside the outer casing. The battery pack extends laterally and rests on each of the lifting beams, with the bottom of the battery pack separated from the bottom of the inner wall of the outer casing. A stabilizing frame is disposed inside the outer casing. The inner wall of the stabilizing frame extends laterally along the battery pack and covers the battery pack. A buffer spacer is laid between the inner wall of the stabilizing frame and the battery pack to allow the battery pack to be interference-fitted into the stabilizing frame. A supporting arch is fixedly disposed on the stabilizing frame and abuts against the top of the inner wall of the outer casing to press and fix the battery pack onto each of the lifting beams.

2. The shock absorption structure for electric motorcycle battery packs according to claim 1, characterized in that, The stabilizing frame includes a top panel and two side panels; the two side panels are fixedly disposed on the edge of the top panel and are positioned opposite each other; the top panel and each of the side panels extend laterally along the battery pack and are respectively supported against the battery pack by the buffer spacers.

3. The shock absorption structure for electric motorcycle battery packs according to claim 2, characterized in that, The buffer plate includes a top buffer portion and two side buffer portions. The top buffer portion is laid between the top enclosure and the top surface of the battery pack, and each side buffer portion is laid between a corresponding side enclosure and a corresponding side of the battery pack.

4. The shock absorption structure for electric motorcycle battery packs according to claim 2, characterized in that, The first end of each of the lifting beams is fixedly connected to one of the side panels, and the second end of each of the lifting beams is fixedly connected to the other side panel.

5. The shock absorption structure for electric motorcycle battery packs according to claim 1, characterized in that, The stabilizing frame is also provided with a perforated window, and the buffer plate is opposite to the inner wall of the outer shell through the perforated window.

6. The shock absorption structure for the electric motorcycle battery pack according to claim 1, characterized in that, The shock absorption structure of the electric motorcycle battery pack also includes a lifting base; the lifting base is fixedly installed on the bottom of the inner wall of the outer shell and abuts against the bottom of the battery pack.

7. The shock absorption structure for electric motorcycle battery packs according to claim 1, characterized in that, The supporting arch includes a bent arch portion and two welded portions; each of the welded portions is integrally connected to one end of the bent arch portion, and each of the welded portions is welded to the top surface of the stabilizing frame; the bent arch portion abuts against the top of the inner wall of the outer shell, so that the top surface of the stabilizing frame and the top of the inner wall of the outer shell maintain a gap.

8. The shock absorption structure for electric motorcycle battery packs according to claim 7, characterized in that, The outer casing is provided with a locking component, the bent arched portion is provided with a threaded locking hole, and the outer casing is provided with a through-pin hole; the locking component passes through the through-pin hole and is threadedly locked into the threaded locking hole.

9. The shock absorption structure for electric motorcycle battery packs according to claim 1, characterized in that, The outer casing has multiple mounting positions on its side wall. Each end of the lifting beam is respectively matched with one of the mounting positions and is fixedly connected to the stabilizing frame.

10. A battery pack, characterized in that, The electric motorcycle battery pack shock absorption structure includes any one of claims 1 to 9.

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