Self-adapting mechanical limiting mounting rack of energy storage power equipment for vehicle

Abstract

This invention relates to the field of vehicle parts technology, specifically disclosing an adaptive mechanical limiting mounting bracket for vehicle energy storage power equipment. The bracket includes a fixed base and a buffer assembly mounted on the fixed base. The buffer assembly includes an equipment buffer mechanism and a cable buffer mechanism. The equipment buffer mechanism uses a floating seat, elastic element one, a lifting rod, and elastic element two to provide horizontal and vertical buffering and limiting for the legs of the energy storage power equipment. The cable buffer mechanism uses a positioning plate, a floating plate, and a proportional follower unit to cause the cable clamp to move with the equipment at a small ratio, distributing the displacement difference of the outgoing cable to the equipment end and the cable clamp end, reducing pulling wear at the cable root, cable clamp edge, and bending transition section. The proportional follower unit uses a scissor linkage assembly in conjunction with a universal ball joint and a rotating frame for positioning, ensuring continuous linkage between equipment buffering, cable follow-up, and mechanical limiting.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts technology, and more specifically to an adaptive mechanical limit mounting bracket for vehicle energy storage power equipment. Background Technology

[0002] Vehicle-mounted energy storage devices are typically fixed to the vehicle's floor, frame longitudinal beams, or equipment compartment using brackets, bolts, and mounting beams. During vehicle operation, the devices are subjected to a combination of loads generated by road impacts, braking inertia, lateral loads, and vehicle torsion. The energy storage device itself has a significant mass, requiring reliable load-bearing and mechanical limiting capabilities at its support feet. Simultaneously, one end of the device's output cable is connected to the device's output port or connector, while the other end is fixed to the frame, body, or adjacent electrical components. A slight displacement difference exists between these two fixed points due to vehicle vibration and bracket elastic deformation; this displacement difference is primarily borne by the cable transition section.

[0003] Chinese patent document CN106184414A discloses an electric vehicle battery pack mounting structure, which uses a sill beam, a lower crossbeam of the front bumper, a front crossbeam of the rear floor, a nut plate mounting strip, and a battery mounting nut plate to install the battery pack, ensuring reliable battery pack fixation and positioning the mounting structure within the beam body. Chinese patent document CN206490114U discloses a car battery box vibration damping device, which uses elastic elements and connecting components to change the rigid connection between the battery box and the vehicle frame into a flexible connection, reducing the transmission of frame vibration to the battery box and limiting the relative displacement between the battery box and the vehicle frame. Chinese patent document CN113161664A discloses an electric vehicle battery pack housing mounting bracket structure, which uses mounting blocks and cylindrical sleeves to bolt the battery pack sheet metal housing to the vehicle body, improving the strength and limiting capability of the mounting point.

[0004] In the aforementioned technical solutions, existing installation structures are primarily designed around the load-bearing, fixing, and vibration damping of the equipment body or battery pack enclosure. There is a lack of linkage between the equipment buffer structure and the buffer protection of the outgoing cables. When the energy storage power equipment experiences horizontal slight movement or vertical buffer displacement on the fixed base, the outgoing cables are still constrained in a fixed position by conventional clamps, cable ties, or rigid supports, causing concentrated tension on the cable roots, clamp edges, and bending transition sections. If the clamps are completely fixed, the equipment end displacement is concentrated near the outgoing port; if the clamps move synchronously with the equipment, the area near the fixed end of the vehicle body experiences a significant displacement difference. Therefore, a mounting bracket is needed that simultaneously considers both adaptive mechanical limiting of the equipment and proportional follow-up protection of the outgoing cables. This allows the equipment displacement to be buffered and limited while the cable clamping points follow up at a smaller proportion, reducing localized stress and wear on the cables. Summary of the Invention

[0005] This invention provides an adaptive mechanical limit mounting bracket for automotive energy storage devices, aiming to solve the above-mentioned problems.

[0006] An adaptive mechanical limit mounting bracket for vehicle-mounted energy storage devices includes a fixed base. A buffer assembly is mounted on the fixed base. The buffer assembly includes an equipment buffer mechanism connected to the energy storage device and a cable buffer mechanism connected to the outgoing cable of the energy storage device. The equipment buffer mechanism includes multiple floating seats slidably mounted on the fixed base. An elastic element is connected between the floating seats and the fixed base. A lifting rod is vertically slidably mounted on the floating seats. An elastic element is connected between the lifting rod and the floating seats. The legs of the energy storage device are fixedly connected to the lifting rod. The cable buffer mechanism includes a floating plate, a positioning plate, and a proportional follower unit. The positioning plate is connected to the lifting rod and moves synchronously with it. The floating plate is movably mounted on the fixed base and has clamps for fixing the outgoing cables. The proportional follower unit has a driving end and a following end. The driving end is connected to the positioning plate, and the following end is connected to the floating plate. When the energy storage power equipment causes the lifting rod and the positioning plate to move relative to the fixed base, the proportional follower unit drives the floating plate to move relative to the fixed base, and the amount of the following displacement of the floating plate is one-third to two-thirds of the displacement of the positioning plate.

[0007] Its effects are as follows: the fixed base provides a stable installation foundation for the energy storage equipment; multiple floating seats on the fixed base form a distributed load, allowing the weight of the energy storage equipment and the vehicle impact load to be transferred to different buffer points through multiple supports, avoiding concentrated force on a single installation point; the elastic element pair provides elastic constraint on the horizontal micro-movement of the floating seats, enabling the equipment to generate controlled horizontal buffer displacement when the vehicle brakes, turns, bumps, or the vehicle body twists, and return to the limit center after the impact is released; the lifting rod and the elastic element pair buffer the vertical jump of the equipment's supports, preventing the equipment from directly impacting the fixed base during vertical vibrations. After the positioning plate and the lifting rod move synchronously, the displacement state of the equipment end is transmitted to the proportional follower unit, which then drives the floating plate with the wire clamp to generate a small proportion of follow, so that the wire clamp is neither completely fixed to the side of the vehicle body nor completely moves synchronously with the equipment, but rather obtains a portion of the equipment's displacement. Therefore, the cable segment from the outlet of the energy storage power equipment to the clamp and the cable segment from the clamp to the vehicle body fixing point jointly bear the equipment's buffer displacement. The pulling amount of the cable root, clamp edge and bending transition section is distributed, reducing the risk of cable sheath wear, insulation layer fatigue and connector loosening, while maintaining the mechanical limit stability of the equipment body.

[0008] Furthermore, the fixed base has vertical mounting holes, and the floating seat is installed in the mounting holes. Both the upper and lower ends of the floating seat are fitted with limiting edges with a diameter larger than the mounting holes, forming an annular buffer space between the mounting holes and the floating seat. The effect is that the floating seat obtains a controlled circumferential movement margin within the mounting holes, and the limiting edges restrict the floating seat from detaching from the fixed base from both the upper and lower sides, thus maintaining the floating seat in a limited installation state under equipment impact loads.

[0009] Furthermore, the elastic element includes multiple spring pieces arranged in a ring array. The inner ends of all the spring pieces are connected to a fixing ring, which is coaxially fixed in the middle of the floating seat. The outer ends of the spring pieces abut against the mounting holes. The effect is that multiple spring pieces provide uniform support along the outer periphery of the floating seat, so that the floating seat is subjected to elastic restoring force when impacted in any horizontal direction, making the horizontal buffering action of the energy storage power equipment more stable.

[0010] Furthermore, a ball bearing is provided on the side of the limiting edge near the mounting hole, which contacts the fixed base. The effect is that the ball bearing reduces the relative friction between the limiting edge and the fixed base, reduces jamming during the buffer movement of the floating seat, and allows the restoring force generated by the spring to act smoothly on the floating seat.

[0011] Furthermore, a dustproof edge is provided at the edge of the limiting edge to prevent impurities from entering the gap between the limiting edge and the fixed base. The effect is that the dustproof edge shields the ball bearings, the edge of the mounting hole, and the contact area of ​​the limiting edge, reducing the entry of mud, dust, or metal particles into the movement gap and improving the working stability of the mounting bracket in vehicle chassis or equipment compartment environments.

[0012] Furthermore, the proportional follower unit includes multiple scissor link assemblies, each comprising a first scissor arm assembly and a second scissor arm assembly. The first scissor arm assembly is hinged between the fixed base and the floating plate, while the second scissor arm assembly is hinged between the floating plate and the positioning plate. The effect is that the fixed base, floating plate, and positioning plate form a proportional motion transmission path through the vertically distributed scissor structure. The input displacement of the positioning plate is converted into the intermediate follower displacement of the floating plate via the scissor link assembly, resulting in a compact structure and a clear force transmission path.

[0013] Furthermore, the first and second scissor arm assemblies have the same scissor arm length, and are symmetrically arranged relative to the floating plate, so that the displacement of the floating plate is half the displacement of the positioning plate. The effect is that the floating plate, located between the fixed base and the positioning plate and serving as the cable clamp installation device, achieves half the displacement of the positioning plate under a symmetrical scissor arm relationship. This allows the cable segment at the equipment end and the cable segment at the vehicle body end to approximately evenly share the equipment displacement difference, making it suitable for installation scenarios where the transition lengths on both sides of the cable are similar.

[0014] Furthermore, both the first and second scissor arm assemblies include a first link and a second link that are hinged together at their middle sections. The first scissor arm assembly also includes a third link and a fourth link that are hinged together at their top ends, with the bottom ends of the third and fourth links respectively hinged to the top ends of the first and second links. The second scissor arm assembly also includes a fifth link and a sixth link that are hinged together at their bottom ends, with the top ends of the fifth and sixth links respectively hinged to the bottom ends of the first and second links. The effect is that the multi-link structure allows the scissor arm assembly to maintain a relatively stable geometric relationship during extension and retraction, reducing the swaying caused by eccentric force on a single cross link.

[0015] Furthermore, universal joints are installed at the hinges of the third and fourth links, and the hinges of the fifth and sixth links. Two universal joints are respectively installed on the fixed base and the floating plate. The effect is that the universal joints release the small angular errors between the fixed base, the floating plate, and the scissor linkage assembly, so that the sway caused by vehicle vibration does not directly cause the linkage assembly to jam.

[0016] Furthermore, a rotating frame one is hinged at the intersection of the first and second links, and a rotating frame two is hinged to the outside of the rotating frame one. The rotation axis of the rotating frame one is perpendicular to the rotation axis of the rotating frame two, and the rotating frame two is fixedly mounted on the floating plate. The effect is that the rotating frames one and two form a dual-axis rotation positioning structure, which enables the intersection of the first and second links to be stably positioned on the floating plate, while releasing the deflection angle of the scissor link assembly relative to the floating plate, ensuring smooth follow-up of the floating plate.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0018] I. This invention integrates the equipment buffer mechanism of the energy storage power equipment and the cable buffer mechanism of the outgoing cable on the same fixed base. The equipment support legs obtain horizontal and vertical buffer limits through floating seats and lifting rods, and the outgoing cable obtains proportional follow-up support through the clamps installed on the floating plate, so that the equipment buffer displacement and the cable protection action establish a mechanical linkage relationship, avoiding vibration reduction at the equipment end while the cable end is rigidly tensile.

[0019] Second, the present invention uses a proportional follower unit to make the follower displacement of the floating plate less than the displacement of the positioning plate. The wire clamp is no longer fixed in a single static position, nor does it move synchronously with the equipment. Instead, it obtains the equipment displacement at a ratio of one-third to two-thirds, so that the transition sections on both sides of the cable share the displacement difference, reducing the local stress concentration at the root of the cable outlet, the edge of the wire clamp, and the bending transition section.

[0020] Third, the present invention forms a multi-layered limiting, guiding and deviation release structure through an annular buffer space, an annular array of springs, upper and lower limiting edges, ball bearings, dustproof edges, universal ball joints and dual-axis rotating frames. This ensures that the energy storage power equipment has a controlled buffer stroke under vehicle vibration, and avoids jamming of the floating seat and scissor linkage due to dust, off-center load or angular error, thereby improving the reliability of the mounting bracket in the vehicle environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention after the device is installed.

[0022] Figure 2 This is a schematic diagram of the structure of the present invention.

[0023] Figure 3 This is an axial sectional view of the buffer mechanism of the device in this invention.

[0024] Figure 4 This is a schematic diagram of the scissor linkage assembly in this invention.

[0025] Figure 5 This is a cross-sectional view of the cable buffer mechanism in this invention.

[0026] Figure label:

[0027] 1. Fixed base; 11. Mounting hole; 12. Buffer space; 2. Equipment buffer mechanism; 21. Floating seat; 22. Elastic element one; 221. Spring; 222. Fixing ring; 23. Lifting rod; 24. Elastic element two; 25. Limiting edge; 26. Ball bearing; 27. Dustproof edge; 3. Cable buffer mechanism; 31. Floating plate; 32. Positioning plate; 33. Cable clamp; 34. First scissor arm assembly; 341. First connecting rod; 342. Second connecting rod; 343. Third connecting rod; 344. Fourth connecting rod; 35. Second scissor arm assembly; 351. Fifth connecting rod; 352. Sixth connecting rod; 36. Universal ball joint; 37. Rotating frame one; 38. Rotating frame two; 4. Energy storage power equipment; 41. Support leg. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1-5As shown, an adaptive mechanical limiting mounting bracket for a vehicle-mounted energy storage device 4 includes a fixed base 1 for mounting on the vehicle floor, frame beam, or equipment compartment mounting beam. A buffer assembly is mounted on the fixed base 1. The buffer assembly includes an equipment buffer mechanism 2 connected to the energy storage device 4 and a cable buffer mechanism 3 connected to the outgoing cable of the energy storage device 4. The equipment buffer mechanism 2 provides horizontal buffering, vertical buffering, and mechanical limiting for the legs 41 of the energy storage device 4. The cable buffer mechanism 3 provides proportional follow-up support for the fixed position of the outgoing cable, ensuring that the displacement generated by the energy storage device 4 under vehicle vibration or impact loads is not entirely concentrated and transmitted to the root of the outgoing cable.

[0030] The equipment buffer mechanism 2 includes multiple floating seats 21, multiple lifting rods 23, multiple elastic elements 22, and multiple elastic elements 24. The multiple floating seats 21 are respectively arranged corresponding to the multiple supports 41 of the energy storage power equipment 4. Each floating seat 21 has a controlled horizontal floating stroke relative to the fixed base 1. The lifting rods 23 are vertically inserted into their respective floating seats 21 and fixedly connected to the supports 41 of the energy storage power equipment 4. The elastic elements 24 are disposed between the lifting rods 23 and the floating seats 21, enabling the lifting rods 23 to generate vertical buffer displacement relative to the floating seats 21. The elastic elements 22 are disposed between the floating seats 21 and the fixed base 1, and are used to elastically support and restore the horizontal displacement of the floating seats 21 when the energy storage power equipment 4 is subjected to vehicle vibration or impact loads. Thus, the support legs 41 of the energy storage power equipment 4 can release the vertical jumping load through the lifting rod 23 and the elastic element 24, and can also release the horizontal impact load through the floating seat 21 and the elastic element 22, so that the energy storage power equipment 4 forms a mechanically limited installation state that combines horizontal floating and vertical buffering on the fixed base 1.

[0031] The fixed base 1 has multiple vertical mounting holes 11, each corresponding to a different support leg 41 of the energy storage device 4. A floating seat 21 is installed within each mounting hole 11. The outer diameter of the floating seat 21 is smaller than the diameter of the mounting hole 11, creating an annular buffer space 12 between the hole wall and the floating seat 21. The buffer space 12 provides controlled horizontal movement for the floating seat 21, allowing it to deviate slightly in any horizontal direction within the mounting hole 11.

[0032] The floating seat 21 has limiting edges 25 fixed at both its upper and lower ends. The diameter of the limiting edges 25 is larger than the diameter of the mounting hole 11. The upper and lower limiting edges 25 are located on the upper and lower sides of the fixed base 1, respectively. The upper limiting edge 25 is integrally formed with the floating seat 21, and the lower limiting edge 25 is welded to the floating seat 21 (in other embodiments, it can be a threaded connection to achieve the purpose of disassembly and replacement). When the energy storage power device 4 transmits impact force in any horizontal direction, the floating seat 21 moves within the buffer space 12. The upper and lower limiting edges 25 always clamp and limit the fixed base 1, preventing the floating seat 21 from falling out of the mounting hole 11. When the energy storage power device 4 has a tendency to jump vertically, the limiting edges 25 cooperate with the fixed base 1 to limit the vertical disengagement of the floating seat 21, keeping the mounting frame in a mechanically limited state.

[0033] The elastic element 22 is installed between the floating seat 21 and the fixed base 1. The elastic element 22 includes multiple spring pieces 221 arranged in a ring array. The inner ends of all the spring pieces 221 are connected to a fixing ring 222. The fixing ring 222 is coaxially fixed to the middle of the floating seat 21, and the outer ends of the spring pieces 221 abut against the wall of the mounting hole 11. When the floating seat 21 moves to one side within the buffer space 12, the spring piece 221 on the side of the movement direction is bent and accumulates elastic restoring force. The spring pieces 221 in other directions provide auxiliary support for the floating seat 21, so that the floating seat 21 returns to the central area of ​​the mounting hole 11 after the vehicle impact is released.

[0034] A ball bearing 26 is provided on the side of the limiting edge 25 near the mounting hole 11, and the ball bearing 26 makes rolling contact with the fixed base 1. When the floating seat 21 undergoes horizontal micro-movement within the fixed base 1, the ball bearing 26 converts the sliding friction between the limiting edge 25 and the fixed base 1 into rolling contact, reducing motion resistance and preventing the floating seat 21 from sluggish due to excessive surface contact friction. A dustproof edge 27 is provided at the edge of the limiting edge 25, surrounding the contact area between the limiting edge 25 and the fixed base 1, preventing mud and dust from entering the movement gaps near the ball bearing 26, thus ensuring that the floating seat 21 maintains stable and buffered movement over a long period of time.

[0035] A lifting rod 23 is vertically slidably mounted on the floating seat 21. The lifting rod 23 passes through the floating seat 21 along its vertical direction. An elastic element 24 connects the lifting rod 23 and the floating seat 21. The support leg 41 of the energy storage device 4 is fixedly connected to the lifting rod 23. When the energy storage device 4 is subjected to vertical loads caused by road bumps, the support leg 41 drives the lifting rod 23 to move up and down relative to the floating seat 21. The elastic element 24 is compressed or stretched and absorbs the vertical impact load. When the energy storage device 4 is subjected to braking, turning, or vehicle body torsional loads, the support leg 41 drives the floating seat 21 to move horizontally within the buffer space 12 via the lifting rod 23. The elastic element 22 buffers and resets the horizontal displacement.

[0036] The cable buffer mechanism 3 includes a floating plate 31, a positioning plate 32, and a proportional follower unit. The positioning plate 32 is connected to the lifting rod 23 and moves synchronously with the lifting rod 23. The positioning plate 32 is used to input the displacement state of the energy storage power device 4 to the proportional follower unit. The floating plate 31 is movably mounted on the fixed base 1. A clamp 33 for fixing the outgoing cable is fixedly mounted on the floating plate 31 through an extension frame. The clamp 33 limits the intermediate support point of the outgoing cable to the floating plate 31, so that the outgoing cable undergoes controlled displacement with the floating plate 31.

[0037] The proportional follower unit has a driving end and a following end. The driving end is connected to the positioning plate 32, and the following end is connected to the floating plate 31. When the energy storage device 4 causes the lifting rod 23 and the positioning plate 32 to move relative to the fixed base 1, the positioning plate 32 acts as the input moving part to drive the proportional follower unit. The proportional follower unit causes the floating plate 31 to move relative to the fixed base 1, and the amount of the moving displacement of the floating plate 31 is one-third to two-thirds of the amount of the displacement of the positioning plate 32. Through this proportional relationship, the cable clamp 33 is neither completely stationary nor moves completely synchronously with the energy storage device 4, but rather the displacement of the device end represented by the positioning plate 32 is proportionally converted into the displacement of the cable support point.

[0038] The proportional follower unit includes multiple scissor link assemblies, which are arranged in two rows along the length of the floating plate 31 to improve the support stability of the floating plate 31 during its follower operation. Each scissor link assembly includes a first scissor arm assembly 34 and a second scissor arm assembly 35. The first scissor arm assembly 34 is hinged between the fixed base 1 and the floating plate 31, and the second scissor arm assembly 35 is hinged between the floating plate 31 and the positioning plate 32. When the positioning plate 32 moves away from or towards the fixed base 1, the second scissor arm assembly 35 moves with the positioning plate 32 and pushes the floating plate 31 to move. The movement of the floating plate 31 is simultaneously constrained by the first scissor arm assembly 34, keeping the floating plate 31 in an intermediate follower position between the fixed base 1 and the positioning plate 32.

[0039] It should be noted that the damping in this embodiment is mainly formed by the frictional contact between the elastic element 22 and the mounting hole 11, the contact resistance between the ball 26 and the fixed base 1, and the rotational friction at each hinge position of the proportional follower unit. When the floating seat 21 makes a slight horizontal movement within the buffer space 12, the spring piece 221 of the elastic element 22 bends and deforms, and remains in contact with the wall of the mounting hole 11. The end of the spring piece 221 slides slightly relative to the wall of the mounting hole 11 as the floating seat 21 moves, thereby forming frictional damping during the horizontal reset process of the floating seat 21, preventing the floating seat 21 from rapidly and repeatedly rebounding under the action of the elastic element 22. The rolling ball 26 on the limiting edge 25 rolls into contact with the fixed base 1, allowing the floating seat 21 to smoothly move in the horizontal direction. Simultaneously, the rolling contact between the rolling ball 26 and the fixed base 1 ensures smooth movement of the floating seat 21, preventing surface contact jamming between the limiting edge 25 and the fixed base 1. The main damping during the reset process of the floating seat 21 is formed by the frictional contact between the outer end of the spring piece 221 and the wall of the mounting hole 11, as well as the rotational friction at each hinge position. The scissor linkages, universal ball joints 36, and rotating frames 37 and 38 in the proportional follower unit generate rotational friction during movement. This rotational friction dampens the follower process of the floating plate 31, ensuring smooth reset of the floating plate 31 after achieving partial displacement of the positioning plate 32, reducing high-frequency vibration of the outgoing cable at the clamp 33.

[0040] In other embodiments, a hydraulic damping rod (not shown in the figure) connects the energy storage device 4 to the fixed base 1. One end of the hydraulic damping rod is hinged to the bottom support of the energy storage device 4, and the other end is hinged to the damping mounting seat on the fixed base 1. When the energy storage device 4 is subjected to vehicle braking, turning, bumping, or vehicle body torsional loads, the energy storage device 4 drives the lifting rod 23 and the floating seat 21 to produce controlled displacement. The hydraulic damping rod extends and retracts with the displacement of the energy storage device 4. The damping oil inside the hydraulic damping rod flows through the throttling channel and consumes vibration energy, thereby suppressing the repeated rebound during the reset process of the elastic element 22 and the elastic element 24, making the buffering action of the energy storage device 4 on the fixed base 1 more stable. The hydraulic damping rod is provided with a damping adjustment component, which can adjust the damping magnitude according to the weight of the energy storage device 4, the vehicle operating environment, and the stiffness of the outgoing cable arrangement.

[0041] In this embodiment, the first scissor arm assembly 34 and the second scissor arm assembly 35 have the same scissor arm length, and are symmetrically arranged relative to the floating plate 31, so that the displacement of the floating plate 31 is half the displacement of the positioning plate 32. When the energy storage power device 4 moves the positioning plate 32 by a distance X, the floating plate 31 moves the wire clamp 33 by a distance X / 2. The cable segment between the outlet of the energy storage power device 4 and the wire clamp 33 bears X / 2 of the relative displacement, and the cable segment between the wire clamp 33 and the vehicle body fixing point bears the remaining X / 2 of the relative displacement, thereby avoiding a single cable segment bearing all the displacement.

[0042] Both the first scissor arm assembly 34 and the second scissor arm assembly 35 include a first link 341 and a second link 342 that are hinged together at their middle sections. The first scissor arm assembly 34 also includes a third link 343 and a fourth link 344 that are hinged together at their top ends, with the bottom ends of the third link 343 and the fourth link 344 respectively hinged to the top ends of the first link 341 and the second link 342. The second scissor arm assembly 35 also includes a fifth link 351 and a sixth link 352 that are hinged together at their bottom ends, with the top ends of the fifth link 351 and the sixth link 352 respectively hinged to the bottom ends of the first link 341 and the second link 342. The above links form a continuous scissor support relationship, ensuring stable geometric constraints for the scissor arm assembly during extension and retraction.

[0043] Universal joints 36 are installed at the hinges of the third link 343 and the fourth link 344, and at the hinges of the fifth link 351 and the sixth link 352. The two universal joints 36 are respectively installed on the fixed base 1 and the floating plate 31. The universal joints 36 allow the scissor linkage assembly to rotate at a small angle relative to the fixed base 1 and the floating plate 31, so that the hinge points of the scissor linkage assembly do not get stuck due to off-center load.

[0044] A rotating frame 37 is hinged at the intersection of the first link 341 and the second link 342. A rotating frame 38 is hinged to the outside of the rotating frame 37. The rotation axis of the rotating frame 37 is perpendicular to the rotation axis of the rotating frame 38. The rotating frame 38 is fixedly mounted on the floating plate 31. The rotating frames 37 and 38 form a dual-axis rotation positioning structure, which not only stably positions the intersection of the first link 341 and the second link 342 on the floating plate 31, but also releases the angle change of the intersection relative to the floating plate 31, so that the floating plate 31 remains controlled and does not jam during proportional follow-up.

[0045] The wire clamp 33 is fixedly mounted on the floating plate 31. The outgoing cable passes through the wire clamp 33 and is held and positioned by it. When the floating plate 31 moves proportionally, the wire clamp 33 moves with the floating plate 31, causing a corresponding displacement of the clamping point of the outgoing cable. Since this displacement is less than the displacement of the positioning plate 32, the wire clamp 33 distributes the relative displacement at the device end, rather than transmitting all the movement to the fixed end of the vehicle body. The clamping surface of the wire clamp 33 is in contact with the outer periphery of the outgoing cable, so that the outgoing cable is supported while reducing local indentations on the edge of the wire clamp 33.

[0046] Working principle: In the initial state, the floating seat 21 is located in the central area of ​​the mounting hole 11. The spring piece 221 is evenly pressed against the hole wall of the mounting hole 11 along the outer periphery of the floating seat 21. The lifting rod 23 is kept in a vertical balance position under the action of the elastic element 24. The positioning plate 32 and the floating plate 31 maintain the initial distance through the proportional follower unit. The outgoing cable is fixed on the floating plate 31 by the wire clamp 33.

[0047] When the vehicle experiences minor vibrations during normal operation, the support legs 41 of the energy storage device 4 transmit horizontal and vertical loads to the lifting rod 23. The vertical load causes the lifting rod 23 to slide up and down slightly relative to the floating seat 21, and the elastic element 24 absorbs the vertical impact. The horizontal load causes the floating seat 21 to deviate slightly within the buffer space 12, and the spring 221 undergoes elastic bending and applies a restoring force to the floating seat 21. The ball bearing 26 rolls between the limiting edge 25 and the fixed base 1, reducing the moving resistance of the floating seat 21.

[0048] When the energy storage power equipment 4 generates a significant controlled displacement under braking, turning, bumping, or vehicle body torsion conditions, the lifting rod 23 drives the positioning plate 32 to move synchronously. The positioning plate 32, as the drive input end of the proportional follow-up unit, drives the second scissor arm assembly 35 to move. The second scissor arm assembly 35 drives the floating plate 31 to move, and the first scissor arm assembly 34 simultaneously constrains the floating plate 31, so that the floating plate 31 generates a follow-up displacement of one-third to two-thirds of the displacement of the positioning plate 32.

[0049] After the floating plate 31 moves the clamping point of the wire clamp 33 and the outgoing cable, a first displacement difference is formed between the outgoing cable and the wire clamp 33 at the outlet of the energy storage power equipment 4, and a second displacement difference is formed between the wire clamp 33 and the fixed point of the vehicle body. The first and second displacement differences together bear the equipment displacement input by the positioning plate 32, so that the cable root, the edge of the wire clamp 33 and the bending transition section do not bear the full pull. After the vehicle impact is released, the spring 221 and the elastic element 24 respectively push the floating seat 21, the lifting rod 23 and the positioning plate 32 to reset, and the proportional follower unit then drives the floating plate 31 and the wire clamp 33 back to the initial position.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adaptive mechanical limit mounting rack for energy storage power equipment for vehicles, comprising a fixed base, a buffer assembly is installed on the fixed base, characterized in that: The buffer assembly includes an equipment buffer mechanism connected to the energy storage power equipment and a cable buffer mechanism connected to the outgoing cables of the energy storage power equipment. The equipment buffer mechanism includes multiple floating seats slidably mounted on a fixed base. An elastic element is connected between the floating seats and the fixed base. A lifting rod is vertically slidably mounted on the floating seats. An elastic element is connected between the lifting rod and the floating seats. The legs of the energy storage power equipment are fixedly connected to the lifting rod. The cable buffer mechanism includes a floating plate, a positioning plate, and a proportional follower unit. The positioning plate is connected to the lifting rod and moves synchronously with the lifting rod. The floating plate is movably mounted on the fixed base. A clamp for fixing the outgoing cables is installed on the floating plate. The proportional follower unit has a driving end and a following end. The driving end is connected to the positioning plate, and the following end is connected to the floating plate. When the energy storage power equipment causes the lifting rod and the positioning plate to move relative to the fixed base, the proportional follower unit drives the floating plate to move relative to the fixed base, and the amount of the moving displacement of the floating plate is one-third to two-thirds of the displacement of the positioning plate.

2. The self-adapting mechanical limit mounting rack for vehicle energy storage power equipment according to claim 1, characterized in that, The fixed base has a vertical mounting hole, the floating seat is installed in the mounting hole, and both the upper and lower ends of the floating seat are equipped with limiting edges with a diameter larger than the mounting hole. An annular buffer space is formed between the mounting hole and the floating seat.

3. The self-adapting mechanical limit mount for energy storage electric power equipment for vehicles of claim 2, wherein, The elastic element includes a plurality of spring pieces arranged in a ring array. The inner ends of all the spring pieces are connected to a fixing ring. The fixing ring is coaxially fixedly installed in the middle of the floating seat, and the outer ends of the spring pieces abut against the mounting holes.

4. The self-adapting mechanical limit mount for energy storage electric power equipment for vehicles of claim 2, wherein, The limiting edge is provided with a ball bearing that contacts the fixed base on the side near the mounting hole.

5. The self-adapting mechanical limit mount for energy storage electric power equipment for vehicles of claim 4, wherein, A dustproof edge is provided at the edge of the limiting edge to prevent impurities from entering the gap between the limiting edge and the fixed base.

6. The adaptive mechanical limit mounting bracket for vehicle-mounted energy storage devices according to any one of claims 1-5, characterized in that, The proportional follower unit includes multiple scissor link assemblies, each including a first scissor arm assembly and a second scissor arm assembly. The first scissor arm assembly is hinged between the fixed base and the floating plate, and the second scissor arm assembly is hinged between the floating plate and the positioning plate.

7. The adaptive mechanical limit mounting bracket for vehicle energy storage power equipment according to claim 6, characterized in that, The first and second scissor arm groups have the same scissor arm length, and the first and second scissor arm groups are arranged symmetrically with respect to the floating plate, so that the following displacement of the floating plate is half of the displacement of the positioning plate.

8. The adaptive mechanical limit mounting bracket for vehicle energy storage power equipment according to claim 7, characterized in that, Both the first and second scissor arm assemblies include a first link and a second link that are hinged together at their middle sections. The first scissor arm assembly also includes a third link and a fourth link that are hinged together at their top ends. The bottom ends of the third link and the fourth link are respectively hinged to the top ends of the first link and the second link. The second scissor arm assembly also includes a fifth link and a sixth link that are hinged together at their bottom ends. The top ends of the fifth link and the sixth link are respectively hinged to the bottom ends of the first link and the second link.

9. The adaptive mechanical limit mounting bracket for vehicle energy storage power equipment according to claim 8, characterized in that, Universal joints are installed at the hinge joints of the third and fourth links, and at the hinge joints of the fifth and sixth links. The two universal joints are respectively installed on the fixed base and the floating plate.

10. The adaptive mechanical limit mounting bracket for vehicle energy storage power equipment according to claim 9, characterized in that, A rotating frame 1 is hinged at the intersection of the first and second connecting rods, and a rotating frame 2 is hinged to the outside of the rotating frame 1. The rotation axis of the rotating frame 1 is perpendicular to the rotation axis of the rotating frame 2, and the rotating frame 2 is fixedly installed on the floating plate.

Images