Impact resistance detection device for new energy battery pack

Abstract

The invention relates to the technical field of new energy battery detection, in particular to a new energy battery pack impact resistance detection device which comprises a base, a falling table, a sliding table, an inclined table and a transverse impact generator. A battery pack is installed on an inclined table with the inclination angle capable of being adjusted, the inclined table is installed on a sliding table capable of moving in the horizontal direction relative to a falling table, an impact executing piece is arranged at the bottom of the sliding table, and an impact triggering piece is arranged on a base. When the falling table drives the sliding table, the inclined table and the battery pack to freely fall to a preset position, the impact executing piece collides with the impact triggering piece, the sliding table generates instantaneous impact relative to the falling table in the horizontal direction, and therefore horizontal impact generated when the battery pack falls at different angles is simulated. The problem that an existing battery impact testing device cannot simulate impact force in the horizontal direction when the battery freely falls is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy battery detection, and in particular to a new energy battery pack anti-impact detection device. Background Art

[0002] With the rapid growth in sales of electric and hybrid vehicles in recent years, the safety and reliability of power batteries, as core energy storage components, are crucial. Before leaving the factory, batteries must undergo rigorous impact testing to ensure their structural integrity and performance stability under vehicle driving, collisions, and other extreme operating conditions.

[0003] Currently, most battery impact testers on the market use fixed impact structures, which can only apply impact loads to the battery at a single angle (such as vertical). However, in actual use, batteries may face impacts from multiple directions, such as vehicle collisions, bumpy roads, or accidental drops. Existing test equipment cannot simulate multi-angle impact environments, resulting in deviations between test results and actual application scenarios, making it difficult to fully evaluate the battery's impact resistance.

[0004] Therefore, there is an urgent need to develop a new type of battery pack impact resistance testing device that can realize multi-angle and multi-directional impact testing to more realistically simulate the impact loads that the battery may be subjected to in actual use, thereby improving the accuracy and reliability of the test and providing more comprehensive data support for battery safety design.

[0005] Patent document publication number CN216349471U discloses a battery multi-angle impact testing device, including a first vertical plate, a plurality of screw holes are opened on the first vertical plate, a first reinforcing cross bar and a first reinforcing longitudinal bar are fixedly connected to the first vertical plate, and screw holes are symmetrically opened on the first reinforcing longitudinal bar and the first reinforcing cross bar; a second vertical plate, the second vertical plate is fixed to the first vertical plate, a plurality of screw holes are opened on the second vertical plate, a second reinforcing cross bar and a second reinforcing longitudinal bar are fixedly connected to the second vertical plate, and screw holes are symmetrically opened on the second reinforcing longitudinal bar and the second reinforcing cross bar; and a bottom plate, the bottom plate is fixed to the bottoms of the first and second vertical plates.

[0006] This testing device can change the angle of the battery relative to the horizontal plane by adjusting the angle between the support plate and the base plate, thereby enabling impact testing of the battery at different angles. This method simulates the impact response of the battery when subjected to external forces at different installation angles. However, current testing devices have certain limitations. While they can adjust the angle between the battery and the horizontal plane to simulate vertical impact forces, in actual applications, batteries are often used in environments with horizontal impact forces. Therefore, existing testing devices fail to fully account for these horizontal impact forces. During the stress process of the battery, horizontal impact may not only cause deformation of the battery casing but also damage the internal structure, such as contact problems with the battery electrodes and damage to the separator. These factors may occur during actual battery use and transportation. In real-world accident scenarios (such as vehicle falls or collisions), battery packs often experience complex force paths. In addition to horizontal impact, deformation of the vehicle frame can also cause vertical impact on the battery, and vertical and horizontal impacts may overlap. This complex impact process cannot be fully simulated by testing in a single vertical or horizontal direction. Summary of the Invention

[0007] In response to the problems existing in the existing technology, a new energy battery pack impact resistance detection device is provided. The battery pack is installed on a tilting platform with an adjustable tilt angle, and the tilting platform is installed on a sliding platform that can move horizontally relative to a falling platform. An impact actuator is provided at the bottom of the sliding platform, and an impact trigger is provided on the base. When the falling platform drives the sliding platform, the tilting platform and the battery pack to fall freely to a preset position, the impact actuator collides with the impact trigger, and the sliding platform generates an instantaneous impact in the horizontal direction relative to the falling platform, thereby simulating the horizontal impact of battery packs falling at different angles, solving the problem that the existing battery impact testing device cannot simulate the horizontal impact force when the battery is free falling.

[0008] In order to solve the problems of the prior art, the present invention provides a new energy battery pack anti-impact detection device, comprising a base and a falling platform that can fall freely and is arranged on the top of the base, and also comprising a sliding platform, a tilting platform and a lateral impact generator; the sliding platform is horizontally arranged on the top of the falling platform, and the sliding platform can move relative to the falling platform in a horizontal direction; the tilting platform is arranged on the top of the sliding platform and is hinged thereto, and the tilting platform can rotate around at least one horizontal axis to adjust its tilt angle, and can tilt relative to the sliding platform in a vertical direction, and the battery pack is fixedly arranged on the top of the tilting platform; the lateral impact generator includes an impact actuator and an impact triggering component, the impact actuator is arranged at the bottom of the sliding platform and extends downward through the falling platform, the impact triggering component is arranged on the base and is located at the bottom of the falling platform, when the falling platform freely falls to a preset position, the impact actuator collides with the impact triggering component, and the sliding platform generates an instantaneous impact relative to the falling platform in a horizontal direction; the sliding platform 3 is provided with an inertial force sensor.

[0009] Preferably, the impact actuator includes an actuator column, which is fixedly arranged at the bottom of the sliding platform along the longitudinal direction and passes through the falling platform; the impact trigger includes a trigger seat, which is arranged on the base and located at the end position of the free fall trajectory of the falling platform, and the top of the trigger seat is provided with an inclined impact surface; when the actuator falls with the falling platform to contact the inclined impact surface, the inclined impact surface converts the vertical movement of the actuator column into the horizontal impact movement of the sliding platform.

[0010] Preferably, the trigger seat is rotatably arranged on the base around the axis of the actuator column. The trigger seat is also provided with a positioning bolt that can be fixedly connected to the base. The base is provided with threaded holes distributed circumferentially along the rotation axis of the trigger seat, and the positioning bolt can be threadedly connected to the threaded hole.

[0011] Preferably, the bottom end of the execution column is further provided with a rolling ball rotatably connected thereto, and the execution column is in rolling cooperation with the inclined impact surface via the rolling ball.

[0012] Preferably, the falling platform is provided with a guide opening having a diameter larger than that of the impact actuator, the guide opening is provided with a sliding groove extending horizontally, and the impact actuator is provided with a positioning ring, the outer contour of the positioning ring extends into the sliding groove and its diameter is smaller than the diameter of the sliding groove.

[0013] Preferably, an elastic reset mechanism is provided between the sliding platform and the falling platform, and when the sliding platform is displaced in the horizontal direction relative to the falling platform, the elastic resistance of the elastic reset mechanism needs to be overcome.

[0014] Preferably, the falling platform is provided with mounting openings distributed on the peripheral side of the sliding platform, and the elastic reset mechanism is provided on the peripheral side of the sliding platform, and the elastic reset mechanism includes a guide column, a clamping block and an elastic element; the guide column is provided on the sliding platform along the longitudinal extension; there are two clamping blocks, and the two clamping blocks are arranged close to each other in the mounting opening, and the top ends of the opposite sides of the two clamping blocks are provided with oblique grooves and combined to form a V-shaped groove, and the circumferential surface of the guide column slides in conjunction with the two oblique grooves; the elastic element is provided between the clamping block and the mounting opening, and the two clamping blocks elastically clamp the guide column.

[0015] Preferably, a positioning rod extending along the approaching direction of the two clamping blocks is provided in the installation opening, a positioning hole slidingly matched with the positioning block is provided on the clamping block, and the elastic element is provided on the positioning rod.

[0016] Preferably, the tilting platform includes a transverse adjustment platform and a longitudinal adjustment platform; a transverse axis is provided at the bottom center of the transverse adjustment platform, and the transverse axis is rotatably provided on the top of the sliding platform; a longitudinal axis is provided at the bottom center of the longitudinal adjustment platform, and the longitudinal axis is rotatably provided on the top of the transverse adjustment platform, and the battery pack is provided on the top of the longitudinal adjustment platform.

[0017] Preferably, lower abutment columns threadedly connected to the lateral adjustment platform are provided on both sides of the inclination direction of the lateral adjustment platform, and the bottom ends of the lower abutment columns abut against the top end of the sliding platform; upper abutment columns threadedly connected to the lateral adjustment platform are provided on both sides of the inclination along the longitudinal adjustment platform, and the top ends of the upper abutment columns abut against the side faces of the longitudinal adjustment platform.

[0018] Compared with the prior art, the present invention has the following advantages: This application installs the battery pack on a tilting table with adjustable tilt angle, which is fixed on a sliding table that can move horizontally. This allows the battery pack to be adjusted at multiple angles according to different testing requirements and simulate various situations in actual use.

[0019] When the battery pack on the tilting platform prepares to drop, the drop platform drives the sliding platform, tilting platform, and battery pack together in a free-fall motion. When it reaches the preset position of the impact trigger, it simultaneously triggers the impact trigger mounted on the base. This trigger activates the impact actuator, causing it to precisely collide with the sliding platform, simulating the instantaneous horizontal impact force generated by a battery pack falling at different angles.

[0020] The combination of a tilting table and a sliding table enables the tester to perform impact tests on battery packs at multiple angles. This design provides a more comprehensive assessment of the impact behavior of different battery pack structures and usage environments, ensuring accurate testing of battery performance at different angles, particularly the impact response of the battery pack at different tilt angles.

[0021] This application first applies a vertical impact to the battery pack, followed by a horizontal impact, to ensure that the combined impact requirements of actual operating conditions can be fully replicated. Furthermore, to more accurately control the impact force, an inertial force sensor is introduced to directly detect the acceleration of the battery pack during vertical and horizontal impacts, thereby improving the accuracy and repeatability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a new energy battery pack anti-impact detection device of the present invention.

[0023] Figure 2 It is a front view of a new energy battery pack anti-impact detection device of the present invention.

[0024] Figure 3 It is a cross-sectional view of a new energy battery pack anti-impact detection device of the present invention.

[0025] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0026] Figure 5 yes Figure 3 A partial enlarged view of point B.

[0027] Figure 6 It is a stereoscopic view of the drop platform in a new energy battery pack anti-impact detection device of the present invention from a first perspective.

[0028] Figure 7 yes Figure 6 A partial enlarged view of point C.

[0029] Figure 8 It is a stereoscopic view of the drop platform in a new energy battery pack anti-impact detection device of the present invention from a second viewing angle.

[0030] Figure 9 It is a three-dimensional diagram of a new energy battery pack anti-impact detection device of the present invention when the tilting platform is horizontal.

[0031] Figure 10 It is a three-dimensional diagram of a tilting platform in a new energy battery pack anti-impact detection device of the present invention when tilted.

[0032] Figure 11 It is a front view of a new energy battery pack anti-impact detection device of the present invention, in which the impact actuator is an inclined impact surface structure.

[0033] The numbers in the figure are: 11, base; 111, threaded hole; 12, top platform; 121, roller; 13, winch; 2, drop platform; 21, gantry; 22, guide port; 221, sliding groove; 23, mounting port; 231, positioning rod; 3, sliding platform; 4, tilting platform; 41, horizontal adjustment platform; 411, horizontal axis; 42, longitudinal adjustment platform; 421, longitudinal axis; 43, lower abutment column; 44, upper abutment column; 51, impact actuator; 511, actuator column; 512, ball; 513, positioning ring; 5131, ball; 52, impact trigger; 521, trigger seat; 5211, inclined impact surface; 522, positioning bolt; 6, elastic reset mechanism; 61, guide column; 62, clamping block; 63, elastic element; 631, inclined groove; 7, battery pack. DETAILED DESCRIPTION

[0034] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 、 Figure 2 and Figure 3 As shown, a new energy battery pack 7 anti-impact detection device includes a base 11 and a drop platform 2 capable of free fall arranged on the top of the base 11, a sliding platform 3, a tilting platform 4 and a lateral impact generator; the sliding platform 3 is horizontally arranged on the top of the drop platform 2 and can move horizontally relative to the drop platform 2; the tilting platform 4 is arranged on the top of the sliding platform 3 and is hinged thereto, and the tilting platform 4 can rotate about at least one horizontal axis to adjust its tilt angle and can tilt vertically relative to the sliding platform 3, and the battery pack 7 is fixed on the top of the tilting platform 4; the lateral impact generator includes an impact actuator 51 and an impact trigger 52, the impact actuator 51 is arranged at the bottom of the sliding platform 3 and extends downward through the drop platform 2, the impact trigger 52 is arranged on the base 11 and located at the bottom of the drop platform 2, when the drop platform 2 freely falls to a preset position, the impact actuator 51 collides with the impact trigger 52, and the sliding platform 3 generates an instantaneous impact relative to the drop platform 2 in the horizontal direction; the sliding platform is provided with an inertial force sensor.

[0036] The top of the base 11 is provided with a column and a top platform 12 arranged on the top of the column, a roller 121 is provided on the top platform 12, a gantry 21 is provided on the top of the drop platform 2, and a winch 13 is provided on one side of the base 11. The wire rope on the winch 13 extends upward and crosses the roller 121, then passes through the top platform 12 and is connected to the gantry 21.

[0037] A free-falling platform 2 is provided on the top of the base 11. A column and a top platform 12 are installed above the falling platform 2. The top platform 12 is equipped with rollers 121 to ensure the movement stability of the falling platform 2 and avoid irregular swinging or interference during the falling process.

[0038] The sliding platform 3 is mounted horizontally on top of the drop platform 2 and is capable of horizontal movement relative to the drop platform 2. A lateral impact generator is mounted at the bottom of the sliding platform 3, while a tilting platform 4 is positioned above the sliding platform 3. The tilting platform 4 is hingedly connected to the sliding platform 3 and can rotate about at least one horizontal axis to adjust the tilt angle of the battery pack 7. This design allows simulation of the battery pack 7 falling at various tilt angles, meeting the requirements of different battery pack 7 structures and external environments.

[0039] The battery pack 7 is fixed to the top of the tilting platform 4. By adjusting the angle of the tilting platform 4, different tilt angles can be simulated. The fixing method of the battery pack 7 ensures its stability during the test and can accurately reflect the falling process in actual application.

[0040] The lateral impact generator consists of an impact actuator 51 and an impact trigger 52. The impact actuator 51 is mounted on the bottom of the sliding platform 3, extending downward and through the drop platform 2. The impact trigger 52 is mounted on the base 11 and located at the bottom of the drop platform 2. When the drop platform 2 freely falls to a predetermined position, the impact actuator 51 collides with the impact trigger 52, causing the sliding platform 3 to produce a momentary horizontal impact relative to the drop platform 2. This design effectively simulates the horizontal impact force that the battery pack 7 may encounter during free fall.

[0041] The wire rope on the hoist 13 is connected to the roller 121, passes through the top platform 12 and is connected to the gantry 21, thereby accurately controlling the falling height and speed of the drop platform 2. This system not only improves the adjustability of the drop platform 2, but also ensures safety and stability during the test process.

[0042] like Figure 3 、 Figure 4 and Figure 5 As shown, the impact actuator 51 includes an actuator column 511, which is fixedly arranged at the bottom of the sliding platform 3 along the longitudinal direction and passes through the falling platform 2; the impact trigger member 52 includes a trigger seat 521, which is arranged on the base 11 and is located at the end position of the free fall trajectory of the falling platform 2, and the top of the trigger seat 521 is provided with an inclined impact surface 5211; when the actuator 511 falls with the falling platform 2 to contact the inclined impact surface 5211, the inclined impact surface 5211 converts the vertical movement of the actuator column 511 into the horizontal impact movement of the sliding platform 3.

[0043] The actuator column 511 is fixedly mounted longitudinally at the bottom of the sliding platform 3 and extends throughout the entire structure of the drop platform 2. This ensures stable contact with the trigger element during the drop process, effectively transmitting the impact force. This design allows the synergistic effect between the sliding platform 3 and the drop platform 2 to generate a controllable horizontal impact force.

[0044] The trigger seat 521 is mounted on the base 11 and located at the end of the free-fall trajectory of the drop platform 2. To ensure that the trigger member accurately responds to the movement of the drop platform 2, an inclined impact surface 5211 is provided on the top of the trigger seat 521. This inclined impact surface 5211 takes into account the relative position of the drop platform 2 and the sliding platform 3, ensuring that the actuator 511 changes direction smoothly and accurately when it contacts the impact surface.

[0045] During the free fall of the drop platform 2, the actuator column 511 moves downward with the drop platform 2, eventually contacting the inclined impact surface 5211. When the actuator column 511 contacts the inclined impact surface 5211, the impact surface, through its angled design, effectively converts the vertical movement of the actuator column 511 into horizontal impact motion of the sliding platform 3. This conversion process ensures the generation of horizontal impact force through precise angle adjustment and mechanical transmission.

[0046] By designing the inclined impact surface 5211, the impact actuator 51 can accurately convert vertical impact forces into horizontal impact forces. Conventional impact actuators 51 typically only generate impacts in the vertical direction. This design overcomes this limitation, enabling the device to simulate horizontal impact forces that the battery pack 7 might encounter in real-world environments in multiple dimensions, thereby more comprehensively evaluating the battery's impact resistance.

[0047] like Figure 4 As shown, the trigger seat 521 is rotatably arranged on the base 11 around the axial direction of the execution column 511. The trigger seat 521 is also provided with a positioning bolt 522 that can be fixedly connected to the base 11. The base 11 is provided with threaded holes 111 distributed circumferentially along the rotation axis of the trigger seat 521, and the positioning bolt 522 can be threadedly connected to the threaded hole 111.

[0048] In order to further enhance the flexibility and diversity of the testing device, a method of adjusting the trigger seat 521 is designed so that its inclined impact surface 5211 can face any direction, thereby generating horizontal impact forces in different directions.

[0049] The trigger seat 521 is mounted on the base 11 and can rotate about the axis of the actuator 511. This rotational capability allows the tilted impact surface 5211 to be flexibly adjusted in orientation, thereby generating horizontal impact forces from multiple angles. By rotating the trigger seat 521, testers can precisely control the sliding platform 3 to apply impact forces in different directions, meeting the diverse impact scenarios that different types of battery packs 7 may encounter in actual use.

[0050] To ensure that the trigger base 521 maintains a stable and precise position during adjustment, a positioning pin 522 is provided on the trigger base 521. This positioning pin 522 is threadedly engaged with the threaded hole 111 on the base 11, thereby locking the trigger base 521 at the desired rotation angle. The design of the positioning pin 522 ensures that the trigger base 521 is securely fixed to the base 11, preventing unnecessary movement or offset during impact testing.

[0051] The base 11 is provided with a plurality of threaded holes 111 distributed circumferentially along the rotation axis of the trigger seat 521. The design of these threaded holes 111 provides multiple adjustment positions for the positioning bolt 522. By adjusting the combination of the positioning bolt 522 and the threaded holes 111, the trigger seat 521 can be precisely positioned at a desired angle.

[0052] like Figure 5 As shown, the bottom end of the execution column 511 is further provided with a rolling ball 512 rotatably connected thereto, and the execution column 511 rolls with the inclined impact surface 5211 through the rolling ball 512 .

[0053] The bottom end of the actuator column 511 is equipped with a rolling ball 512 that is rotatably connected to it. This rolling ball 512 can rotate freely, forming a rolling contact with the inclined impact surface 5211, rather than a sliding contact. This design significantly reduces the resistance between the contact surfaces by converting friction into rolling friction. Compared to sliding friction, rolling friction has a significantly lower coefficient of friction, allowing the actuator column 511 to move more smoothly when mating with the trigger seat 521.

[0054] like Figure 5 As shown, the falling platform 2 is provided with a guide opening 22 whose diameter is larger than that of the impact actuator 51, and the guide opening 22 is provided with a sliding groove 221 extending in the horizontal direction. The impact actuator 51 is provided with a positioning ring 513, and the outer contour of the positioning ring 513 extends into the sliding groove 221 and its diameter is smaller than the diameter of the sliding groove 221.

[0055] A guide opening 22 having a diameter larger than that of the impact actuator 51 is provided on the drop platform 2. The purpose of this design is to provide sufficient horizontal displacement clearance for the impact actuator 51 to ensure that the impact positioning ring 513 can freely and smoothly move horizontally when entering the sliding groove 221 without being constrained and causing jamming or displacement.

[0056] A positioning ring 513 is provided on the impact actuator 51. Its outer contour extends into and engages with the sliding groove 221. The positioning ring 513 is designed to ensure precise positioning and stability of the impact actuator 51 during its sliding process. By tightly fitting the sliding groove 221, the positioning ring 513 effectively prevents the impact actuator 51 from shifting or shaking during its sliding process, ensuring that it always moves along the predetermined trajectory.

[0057] Ball bearings 5131 are provided at the contact surface between the positioning ring 513 and the sliding groove 221 to reduce the friction between the positioning ring 513 and the sliding groove 221 .

[0058] Reference Figure 11 As shown, as another embodiment of the present application, the bottom end of the impact actuator 51 can be set as an inclined surface structure. The inclined surface forms a complementary match with the inclined impact surface 5211 of the trigger seat 521, and a stable surface contact state is achieved when the two are in contact. When the impact actuator 51 continues to move in the vertical direction, the vertical displacement component can be converted into a lateral thrust through the interaction of the inclined surfaces, thereby providing a horizontal impact to the impact actuator 51. Figure 6 and Figure 7 As shown, an elastic return mechanism 6 is installed between the sliding platform 3 and the drop platform 2. When the sliding platform 3 is displaced horizontally relative to the drop platform 2, the elastic resistance of the elastic return mechanism 6 must be overcome. An elastic return mechanism 6 is installed between the sliding platform 3 and the drop platform 2. When the sliding platform 3 is displaced horizontally during the impact test, the elastic resistance provided by this mechanism must be overcome to complete the impact. After the impact is completed and the drop platform 2 is reset, the sliding platform 3 automatically returns to its initial position under the action of the elastic return mechanism 6, ready for the next round of testing.

[0059] like Figure 6 、 Figure 7 and Figure 8As shown, the drop platform 2 is provided with mounting openings 23 distributed on the peripheral side of the sliding platform 3, and the elastic reset mechanism 6 is provided on the peripheral side of the sliding platform 3, and the elastic reset mechanism 6 includes a guide column 61, a clamping block 62 and an elastic element 63; the guide column 61 is provided on the sliding platform 3 along the longitudinal extension; there are two clamping blocks 62, and the two clamping blocks 62 are arranged close to each other in the mounting opening 23, and the top ends of the opposite sides of the two clamping blocks 62 are provided with inclined grooves 631 and combined to form a V-shaped groove, and the circumferential surface of the guide column 61 is slidably matched with the two inclined grooves 631; the elastic element 63 is provided between the clamping block 62 and the mounting opening 23, and the two clamping blocks 62 elastically clamp the guide column 61.

[0060] When the sliding platform 3 moves relative to the drop platform 2, it shifts horizontally. At this point, the elastic return mechanism 6 comes into play, providing a spring force to resist the displacement of the sliding platform 3. Regardless of how the sliding platform 3 moves in any direction, the elastic return mechanism 6 always generates a spring force in the opposite direction, ensuring that the sliding platform 3 eventually returns to its original position.

[0061] The inertial force sensor records the acceleration changes of the battery pack during an impact in real time. By analyzing this acceleration data, we can identify the impact of the reaction force generated by the elastic reset mechanism on the overall impact force, allowing dynamic correction to be performed and the true impact force situation to be determined.

[0062] The elastic reset mechanism 6 includes an elastic element 63 such as a spring, a guide column 61 and a clamping block 62. When the sliding table 3 is displaced, the elastic element 63 is compressed or stretched to store potential elastic energy.

[0063] Through the coordinated action of the guide post 61 and the clamping block 62, the elastic element 63 generates a stable and adjustable reaction force during the reset process, controlling the reset of the slide table 3. The guide post 61 extends longitudinally and cooperates with the inclined slot 631 of the clamping block 62 to guide the movement of the slide table 3 and ensure precise reset.

[0064] like Figure 9 and Figure 10 As shown, a positioning rod 231 extending along the approaching direction of the two clamping blocks 62 is provided in the installation opening 23 , a positioning hole slidingly matched with the positioning block is provided on the clamping block 62 , and the elastic element 63 is provided on the positioning rod 231 .

[0065] A positioning rod 231 is provided in the mounting opening 23 of the sliding table 3, extending in the direction of the approach of the two clamping blocks 62. This positioning rod 231 ensures the relative position of the clamping blocks 62 remains stable during the reset process. The combination of positioning rod 231 and clamping blocks 62 provides precise guidance, ensuring that the clamping blocks 62 slide along the correct path, thus ensuring a more stable reset process and preventing deviation.

[0066] The clamping block 62 is provided with a positioning hole that cooperates with the positioning rod 231. This positioning hole slidably engages with the positioning rod 231. During the reset process, when the sliding table 3 moves, the clamping block 62 slides along the positioning rod 231 accordingly, ensuring that the clamping block 62 always moves in the correct direction during the sliding process, thereby effectively guiding the sliding table 3 to return to its original position.

[0067] like Figure 9 and Figure 10 As shown, the tilting platform 4 includes a transverse adjustment platform 41 and a longitudinal adjustment platform 42; a transverse axis 411 is provided at the bottom center of the transverse adjustment platform 41, and the transverse axis 411 is rotatably provided on the top of the sliding platform 3; a longitudinal axis 421 is provided at the bottom center of the longitudinal adjustment platform 42, and the longitudinal axis 421 is rotatably provided on the top of the transverse adjustment platform 41, and the battery pack 7 is provided on the top of the longitudinal adjustment platform 42.

[0068] A transverse shaft 411 is provided at the bottom center of the transverse adjustment platform 41, which is rotatably connected to the top of the sliding platform 3. The function of the transverse adjustment platform 41 is to allow the tilting platform 4 to be adjusted in the horizontal direction, thereby changing the transverse angle of the battery pack 7.

[0069] When the lateral adjustment platform 41 rotates the lateral shaft 411, the sliding platform 3 can be rotated and adjusted in the horizontal direction, thereby changing the tilt angle of the battery pack 7. This design makes the adjustment process smooth and accurate through the support of the rotating shaft.

[0070] A longitudinal axis 421 is provided at the bottom center of the longitudinal adjustment platform 42, which is pivotally connected to the top of the transverse adjustment platform 41. This design allows the longitudinal adjustment platform 42 to vertically adjust the longitudinal angle of the sliding platform 3, thereby adjusting the tilt angle of the battery pack 7 and moving the device components up and down.

[0071] The rotation of the longitudinal adjustment platform 42 allows the system to achieve fine adjustments in the vertical direction, increasing the adjustment range and flexibility of the device. By controlling the rotation of the longitudinal axis 421, the longitudinal adjustment platform 42 can adjust the height of the battery pack 7 to meet the needs of different angles.

[0072] The battery pack 7 is placed on top of the longitudinal adjustment platform 42, so the battery pack 7 moves up and down with the rotation of the longitudinal adjustment platform 42. This allows the battery pack 7 to be flexibly adjusted according to needs, whether it is to adapt to different working environments or to conduct more effective testing.

[0073] By combining the horizontal and vertical adjustment platforms, the angle of the battery pack 7 can be adjusted in two directions simultaneously, thus achieving more precise and multi-angle adjustment.

[0074] like Figure 9 and Figure 10 As shown, lower abutment columns 43 threadedly connected to the lateral adjustment platform 41 are provided on both sides of the tilting direction of the lateral adjustment platform 41, and the bottom ends of the lower abutment columns 43 abut against the top end of the sliding platform 3; upper abutment columns 44 threadedly connected to the longitudinal adjustment platform 42 are provided on both sides of the lateral adjustment platform 41 tilted along the longitudinal adjustment platform 42, and the top ends of the upper abutment columns 44 abut against the side faces of the longitudinal adjustment platform 42.

[0075] The lower abutment posts 43 are located on both sides of the lateral adjustment platform 41 and are threadedly connected to the lateral adjustment platform 41. The bottom ends of the lower abutment posts 43 are in contact with the top end of the sliding platform 3 to form a stable contact surface.

[0076] When the lower abutment column 43 is rotated, the vertical position of the column changes due to the characteristics of its threaded connection, resulting in different heights on both sides of the lateral adjustment platform 41. This change causes a height difference in the tilt direction of the lateral adjustment platform 41, thereby adjusting its lateral angle.

[0077] By precisely adjusting the height difference of the lower abutting column 43 , the precise tilting of the lateral adjustment platform 41 can be achieved to meet different angle requirements.

[0078] The upper abutment posts 44 are located on both sides of the longitudinal adjustment platform 42 and are connected to the transverse adjustment platform 41 through threaded connection. The top ends of the upper abutment posts 44 are in contact with the sides of the longitudinal adjustment platform 42 to form support points.

[0079] When the upper abutment column 44 is rotated, due to its connection with the transverse adjustment platform 41, the adjustment will cause a height difference between the two sides of the longitudinal adjustment platform 42. This height difference will cause the longitudinal adjustment platform 42 to tilt in the longitudinal direction.

[0080] Adjusting the height difference of the upper abutting posts 44 allows the tilt angle of the longitudinal adjustment platform 42 to be precisely adjusted, thereby affecting the overall vertical angle of the battery pack 7 .

[0081] The lateral adjustment platform 41 and the longitudinal adjustment platform 42 have independent adjustment functions, but they achieve coordinated adjustment through the cooperation of the lower abutment column 43 and the upper abutment column 44. By adjusting the lateral angle of the lateral adjustment platform 41 and the longitudinal angle of the longitudinal adjustment platform 42 separately, the posture of the battery pack 7 can be precisely controlled.

[0082] When the lower abutment column 43 adjusts the lateral angle, the height change on both sides of the lateral adjustment platform 41 will affect the lateral balance of the battery pack 7; and when the upper abutment column 44 adjusts the longitudinal angle, the tilt of the longitudinal adjustment platform 42 also affects the longitudinal balance of the system.

[0083] This hierarchical adjustment design ensures that the system can be precisely adjusted in multiple directions to meet the needs of various angle changes.

[0084] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A new energy battery pack anti-impact detection device, comprising a base and a free-falling drop platform arranged on the top of the base, characterized in that: Also included are a sliding table, tilting table, and lateral impact generator; The sliding platform is horizontally arranged on the top of the falling platform, and the sliding platform can move horizontally relative to the falling platform; The tilting platform is arranged on top of the sliding platform and is hinged thereto. The tilting platform can rotate about at least one horizontal axis to adjust its tilt angle and can be tilted in a vertical direction relative to the sliding platform. The battery pack is fixedly arranged on the top of the tilting platform. The lateral impact generator includes an impact actuator and an impact trigger. The impact actuator is arranged at the bottom of the sliding platform and extends downward through the drop platform. The impact trigger is arranged on the base and is located at the bottom of the drop platform. When the drop platform freely falls to a preset position, the impact actuator collides with the impact trigger, and the sliding platform generates an instantaneous impact relative to the drop platform in the horizontal direction; an inertial force sensor is arranged on the sliding platform.

2. The new energy battery pack anti-impact detection device according to claim 1, characterized in that: The impact actuator includes an actuator column, which is fixedly arranged at the bottom of the sliding platform along the longitudinal direction and passes through the falling platform; The impact triggering member includes a trigger seat, which is arranged on the base and located at the end position of the free fall trajectory of the falling platform, and the top of the trigger seat is provided with an inclined impact surface; When the execution column falls along with the falling platform until it contacts the inclined impact surface, the inclined impact surface converts the vertical movement of the execution column into the horizontal impact movement of the sliding platform.

3. The new energy battery pack anti-impact detection device according to claim 2, characterized in that: The trigger seat is rotatably arranged on the base around the axis of the actuator. The trigger seat is also provided with a positioning bolt that can be fixedly connected to the base. The base is provided with threaded holes distributed circumferentially along the rotation axis of the trigger seat, and the positioning bolt can be threadedly connected to the threaded hole.

4. The new energy battery pack anti-impact detection device according to claim 2, characterized in that: The bottom end of the execution column is also provided with a rolling ball which is rotatably connected thereto, and the execution column is in rolling cooperation with the inclined impact surface through the rolling ball.

5. A new energy battery pack anti-impact detection device according to any one of claims 1 to 4, characterized in that: The falling platform is provided with a guide opening with a diameter larger than that of the impact actuator, and a sliding groove extending horizontally is provided at the guide opening. The impact actuator is provided with a positioning ring, the outer contour of the positioning ring extends into the sliding groove and its diameter is smaller than the diameter of the sliding groove, and a ball is provided at the contact surface between the positioning ring and the sliding groove.

6. A new energy battery pack anti-impact detection device according to any one of claims 1 to 4, characterized in that: An elastic reset mechanism is provided between the sliding platform and the falling platform. When the sliding platform is displaced relative to the falling platform in the horizontal direction, the elastic resistance of the elastic reset mechanism needs to be overcome.

7. The new energy battery pack anti-impact detection device according to claim 6, characterized in that: The falling platform is provided with mounting openings distributed on the peripheral side of the sliding platform, and the elastic reset mechanism is provided on the peripheral side of the sliding platform, and the elastic reset mechanism includes a guide column, a clamping block and an elastic element; The guide column is provided on the sliding platform so as to extend in the longitudinal direction; There are two clamping blocks, which are arranged close to each other in the installation opening. The top ends of the two clamping blocks on opposite sides are provided with oblique grooves and are combined to form a V-shaped groove. The circumferential surface of the guide column is slidably engaged with the two oblique grooves. The elastic element is arranged between the clamping block and the installation opening, and the two clamping blocks elastically clamp the guide column.

8. The new energy battery pack anti-impact detection device according to claim 7, characterized in that: A positioning rod extending along the approaching direction of the two clamping blocks is provided in the installation opening, a positioning hole slidingly matched with the positioning block is provided on the clamping block, and the elastic element is provided on the positioning rod.

9. A new energy battery pack anti-impact detection device according to any one of claims 1 to 4, characterized in that: The tilting platform includes a horizontal adjustment platform and a longitudinal adjustment platform; A transverse shaft is provided at the bottom center of the transverse adjustment platform, and the transverse shaft is rotatably provided on the top of the sliding platform; A longitudinal axis is provided at the bottom center of the longitudinal adjustment platform. The longitudinal axis is rotatably provided on the top of the transverse adjustment platform. The battery pack is provided on the top of the longitudinal adjustment platform.

10. The new energy battery pack anti-impact detection device according to claim 9, characterized in that: Lower abutment columns threadedly connected to the horizontal adjustment platform are provided on both sides of the horizontal adjustment platform in the tilting direction, and the bottom ends of the lower abutment columns abut against the top end of the sliding platform; Upper abutment columns threadedly connected to the transverse adjustment platform are provided on both sides of the transverse adjustment platform along the inclination of the longitudinal adjustment platform, and the top ends of the upper abutment columns abut against the side surfaces of the longitudinal adjustment platform.

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