Turnover testing device

Abstract

The embodiment of the utility model provides a turnover testing device. The utility model discloses a turnover testing device. The turnover testing device has a first direction, a second direction and a third direction which are intersected pairwise, comprising an overturning test bench and a plurality of driving support rods, a battery pack is stacked on the overturning test bench along a first direction, the overturning test bench comprises a first center line Z1 extending along a second direction and a second center line Z2 extending along a third direction, and the overturning test bench is divided into four areas by the first center line Z1 and the second center line Z2; at least one driving supporting rod is in driving connection in each area, and the driving supporting rods can stretch out and draw back in the first direction; when the at least two driving supporting rods located on one side of the first center line Z1 extend, the overturning test bench can overturn around the first center line Z1, and when the at least two driving supporting rods located on one side of the second center line Z2 extend, the overturning test bench can overturn around the second center line Z2.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a flipping test device. Background Art

[0002] During the operation of a battery pack, a large amount of heat is generated. To remove the heat, a liquid cooling plate is usually arranged in the battery pack for cooling. Among them, when the battery pack deflects, the coolant of the liquid cooling plate will leak, leading to safety risks.

[0003] Based on this, it is necessary to perform a flipping test on the battery pack. At present, the flipping test device for the battery pack usually adopts a scheme of connecting a motor to one side of the flipping table, and the flipping table is deflected in a certain direction by the drive of the motor.

[0004] However, due to the structural limitations of the above flipping test device, it not only cannot meet the flipping test requirements at a relatively low speed, but also when performing flipping tests in different flipping directions, the battery pack needs to be reinstalled. However, there are safety risks after the battery pack undergoes a flipping test once, and there are relatively large safety risks in reinstalling the battery pack. Summary of the Utility Model

[0005] In order to solve or partially solve the above problems, the utility model discloses a flipping test device to solve the problem that the battery pack needs to be reinstalled when performing flipping tests in different flipping directions in the prior art.

[0006] To solve the above problems, an embodiment of the utility model provides a flipping test device for the flipping test of a battery pack. The flipping test device has a first direction, a second direction and a third direction that intersect pairwise;

[0007] Comprising:

[0008] A flipping test table and a plurality of driving support rods. The battery packs are stacked on the flipping test table along the first direction. The flipping test table includes a first median line Z1 extending along the second direction and a second median line Z2 extending along the third direction. The first median line Z1 and the second median line Z2 divide the flipping test table into four regions, and at least one of the driving support rods is drivingly connected in each region. Among them, the driving support rods can be telescoped along the first direction;

[0009] When at least two of the driving support rods located on one side of the first median line Z1 are extended, the flipping test table can flip around the first median line Z1. When at least two of the driving support rods located on one side of the second median line Z2 are extended, the flipping test table can flip around the second median line Z2.

[0010] Optionally, the driving support rod includes a driving rod and a driving sphere;

[0011] The driving sphere is connected to the end of the driving rod in the first direction, a spherical clamping groove is formed on the flipping test bench, and the driving sphere is embedded in the spherical clamping groove.

[0012] Optionally, first sliding grooves are formed on both sides of the spherical clamping groove in the second direction, and second sliding grooves are formed on both sides of the spherical clamping groove in the third direction;

[0013] Wherein, the first sliding groove communicates with the spherical clamping groove, and the dimension W1 of the first sliding groove in the third direction is greater than the diameter L of the driving sphere, the second sliding groove communicates with the spherical clamping groove, and the dimension W2 of the second sliding groove in the second direction is greater than the diameter L of the driving sphere.

[0014] Optionally, the flipping test device further includes a circulating pump;

[0015] The circulating pump is installed on the flipping test bench, and the circulating pump is connected between the water inlet and the water outlet of the battery pack.

[0016] Optionally, the flipping test device further includes a temperature and smoke sensor;

[0017] The temperature and smoke sensor is installed on the flipping test bench, and the temperature and smoke sensor is installed on the flipping test bench and is arranged close to the battery pack.

[0018] Optionally, the temperature and smoke sensor includes a sensor body and a telescopic rod;

[0019] The sensor body is installed at the end of the telescopic rod in the first direction, the sensor body is installed on the flipping test bench, and the length of the telescopic rod in the first direction is adjustable.

[0020] Optionally, the flipping test device further includes a control center platform;

[0021] The temperature and smoke sensor and the circulating pump are electrically connected to the control center platform, and the control center platform is used to control the circulating pump and is used to collect the information collected by the temperature and smoke sensor.

[0022] Optionally, a plurality of screw holes are formed on the flipping test bench;

[0023] The plurality of screw holes are spaced apart along at least one of the second direction or the third direction.

[0024] Optionally, the plurality of screw holes are arranged in a matrix.

[0025] Optionally, the flipping test device further includes a base;

[0026] One end of the driving support rod away from the flipping test bench is detachably connected to the base.

[0027] In the embodiment of the present utility model, since the flipping test bench includes a first median line Z1 extending in the second direction and a second median line Z2 extending in the third direction, and the first median line Z1 and the second median line Z2 divide the flipping test bench into four regions, and at least one driving support rod is drivingly connected in each region, wherein the driving support rod can be telescopic in the first direction. Therefore, when at least two driving support rods on one side of the first median line Z1 extend, the flipping test bench can flip around the first median line Z1, that is, the flipping test bench drives the battery pack to flip to one side in the third direction. When at least two driving support rods on one side of the second median line Z2 extend, the flipping test bench can flip around the second median line Z2, that is, the flipping test bench drives the battery pack to flip to one side in the second direction. In summary, through the flipping test device provided by the embodiment of the present application, not only can the flipping test requirements at a relatively low speed be met by the telescopic movement of the driving telescopic rod in the first direction, but also when performing flipping tests in different flipping directions, there is no need to reinstall the battery pack, and only the driving support rods in the corresponding regions need to be extended or shortened, thereby avoiding the safety risks brought by reinstalling the battery pack. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 is one of the exploded views of a flipping test device provided by an embodiment of the present utility model;

[0030] Figure 2 is the second exploded view of a flipping test device provided by an embodiment of the present utility model;

[0031] Figure 3 is the assembly view of the driving support rod and the flipping test bench included in a flipping test device provided by an embodiment of the present utility model;

[0032] Figure 4 is the dimensional view of the driving support rod and the flipping test bench included in a flipping test device provided by an embodiment of the present utility model;

[0033] Figure 5It is a schematic structural diagram of a flipping test table included in a flipping test device provided by an embodiment of the present utility model.

[0034] Explanation of reference numerals:

[0035] 1: Flipping test table; 11: Spherical clamping groove; 12: First chute; 13: Second chute; 14: Screw hole; 2: Driving support rod; 21: Driving rod; 22: Driving sphere; 3: Circulation pump; 4: Temperature and smoke sensor; 41: Sensor body; 42: Telescopic rod; 5: Control center table; 6: Base. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0037] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present utility model. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0038] As Figures 1 to 5 shown, a flipping test device for the flipping test of a battery pack, the flipping test device has a first direction (Z), a second direction (X), and a third direction (Y) that intersect pairwise;

[0039] Including:

[0040] A flipping test table 1 and a plurality of driving support rods 2, the battery packs are stacked on the flipping test table 1 along the first direction (Z), the flipping test table 1 includes a first median line Z1 extending along the second direction (X), and a second median line Z2 extending along the third direction (Y), and the first median line Z1 and the second median line Z2 divide the flipping test table 1 into four regions, and at least one driving support rod 2 is drivingly connected in each region. Among them, the driving support rod 1 can be telescoped along the first direction (Z).

[0041] When at least two driving support rods 2 on one side of the first median line Z1 are extended, the flipping test table 1 can flip around the first median line Z1. When at least two driving support rods 2 on one side of the second median line Z2 are extended, the flipping test table 1 can flip around the second median line Z2.

[0042] As can be seen from the above embodiments, in the embodiments of the present utility model, since the flipping test bench 1 includes a first median line Z1 extending along the second direction (X) and a second median line Z2 extending along the third direction (Y), and the first median line Z1 and the second median line Z2 divide the flipping test bench 1 into four regions, and at least one driving support rod 2 is drivingly connected in each region, wherein the driving support rod 2 can be telescoped along the first direction (Z). Therefore, when at least two driving support rods 2 on one side of the first median line Z1 are extended, the flipping test bench 1 can flip around the first median line Z1, that is, the flipping test bench 1 drives the battery pack to flip to one side in the third direction (Y). When at least two driving support rods 2 on one side of the second median line Z2 are extended, the flipping test bench 1 can flip around the second median line Z2, that is, the flipping test bench 1 drives the battery pack to flip to one side in the second direction (X). In summary, through the flipping test device provided by the embodiments of the present application, not only can the telescoping of the driving telescopic rod 42 in the first direction (Z) meet the flipping test requirements at a relatively low speed, but also when performing flipping tests in different flipping directions, it is not necessary to reinstall the battery pack, and only the driving support rods 2 in the corresponding regions need to be extended or shortened, thereby avoiding the safety risks brought by reinstalling the battery pack.

[0043] Among them, in the above embodiments, the flipping test bench 1 is a square plate-like structure with a certain thickness, or a circular plate-like structure, or a plate-like structure of other shapes, and the embodiments of the present utility model do not limit this. The flipping test bench 1 has a first median line Z1 extending along the second direction (X) and a second median line Z2 extending along the third direction (Y), that is, the flipping test bench 1 can be divided into four regions by the first median line Z1 and the second median line Z2. In this way, when at least one driving support rod 2 is drivingly connected in each region, it can be ensured that the driving rods 21 can be evenly distributed at the four corners of the flipping test bench 1. In other words, it can be ensured that the flipping test bench 1 has at least two driving support rods 2 in the second direction (X) and at least two driving support rods 2 in the third direction (Y).

[0044] Taking the flipping test bench 1 as a square plate-like structure as an example, as Figure 1As shown, the flipping test bench 1 is divided into area A, area B, area C, and area D by the first median line Z1 and the second median line Z2. Among them, area A and area B are located on one side of the first median line Z1, area C and area D are located on the other side of the first median line Z1, area A and area C are located on one side of the second median line Z2, and area B and area D are located on the other side of the second median line Z2. At least one driving support rod 2 is drivingly connected in each of area A, area B, area C, and area D. In this way, when at least two driving support rods 2 on one side of the first median line Z1 extend, that is, at least two driving support rods 2 in area A and area B extend, the flipping test bench 1 flips towards area C and area D. Or when two driving support rods 2 in area C and area D extend, the flipping test bench 1 flips towards area A and area B. Whether flipping towards area C and area D or towards area A and area B, the flipping test bench 1 flips around the first median line Z1, that is, two different deflections of the flipping test bench 1 in the third direction (Y) can be achieved. In this embodiment, when at least two driving support rods 2 in area A and area B extend, the two driving support rods 2 in area C and area D are at the initial length. When it is switched to the two driving support rods 2 in area C and area D extending, at least two driving support rods 2 in area A and area B need to retract to the initial length.

[0045] Conversely, when at least two driving support rods 2 on one side of the second median line Z2 extend, that is, at least two driving support rods 2 in area A and area C extend, the flipping test bench 1 flips towards area B and area D. Or when two driving support rods 2 in area B and area D extend, the flipping test bench 1 flips towards area A and area C. Whether flipping towards area A and area C or towards area B and area D, the flipping test bench 1 flips around the second median line Z2, that is, two different deflections of the flipping test bench 1 in the second direction (X) can be achieved. In this embodiment, when at least two driving support rods 2 in area A and area C extend, the two driving support rods 2 in area B and area D are at the initial length. When it is switched to the two driving support rods 2 in area B and area D extending, at least two driving support rods 2 in area A and area C need to retract to the initial length.

[0046] From the above exemplary embodiments, when it is necessary to switch the flipping direction of the flipping test bench 1, it is only necessary to make the driving support rods 2 in the corresponding area extend or retract, and there is no need to disassemble the battery pack, thereby avoiding the occurrence of safety problems caused by disassembling the battery pack.

[0047] It should be noted that the driving support rod 2 provided in the embodiment of the present invention can be any one of a hydraulic rod, a cylinder push rod, or other driving members with a telescopic function. The embodiment of the present invention does not limit this.

[0048] It also needs to be noted that according toFigure 1 , in the embodiment of the present utility model, the X-axis direction intersects with the Z-axis direction, the X-axis direction intersects with the Y-axis direction, and the Y-axis direction intersects with the Z-axis direction. For the convenience of description, the first direction is defined as the Z-axis direction (that is, the telescopic direction of the driving support rod 2 in the embodiment of the present utility model), the second direction is defined as the X-axis direction, and the third direction is defined as the Y-axis direction. Further explanation, the definition of perpendicular in the specification should be understood as perpendicular when floating within ten percent of ninety degrees, that is, the included angle between the defined first direction and the second direction should be understood as perpendicular when it is between eighty degrees and ninety degrees, the included angle between the defined first direction and the third direction should be understood as perpendicular when it is between eighty degrees and ninety degrees, and the included angle between the defined second direction and the third direction should be understood as perpendicular when it is between eighty degrees and ninety degrees.

[0049] Next, the specific structure of the flip test device provided by the embodiment of the present utility model and other implementation manners will be introduced as follows:

[0050] Regarding the structure of the driving support rod 2, in some embodiments, the driving support rod 2 includes a driving rod 21 and a driving sphere 22; the driving sphere 22 is connected to the end of the driving rod 21 in the first direction (Z). A spherical clamping groove 11 is formed on the flip test bench 1, and the driving sphere 22 is embedded in the spherical clamping groove 11.

[0051] In this embodiment, the driving rod 21 can extend along the first direction (Z). Since the driving sphere 22 is connected to the end of the driving rod 21 in the first direction (Z), and the spherical clamping groove 11 is formed on the flip test bench 1 and the driving sphere 22 is clamped in the spherical clamping groove 11, on the one hand, the spherical clamping groove 11 can limit the driving sphere 22 to ensure the firmness of the connection between the driving support rod 2 and the flip test bench 1, and on the other hand, the driving sphere 22 can rotate in the spherical clamping groove 11, so that the direction of the supporting force exerted by the driving support rod 2 on the flip test bench 1 can be deflected, thereby meeting the supporting requirements in more flip directions.

[0052] In some embodiments, first sliding grooves 12 are formed on both sides of the spherical clamping groove 11 in the second direction (X), and second sliding grooves 13 are formed on both sides of the spherical clamping groove 11 in the third direction (Y); wherein, the first sliding grooves 12 communicate with the spherical clamping groove 11, and the dimension W1 of the first sliding grooves 12 in the third direction (Y) is greater than the diameter L of the driving sphere 22, the second sliding grooves 13 communicate with the spherical clamping groove 11, and the dimension W2 of the second sliding grooves 13 in the second direction (X) is greater than the diameter L of the driving sphere 22.

[0053] With this setting, since the first chute 12 communicates with the spherical clamping groove 11, and the dimension W1 of the first chute 12 in the third direction (Y) is greater than the diameter L of the driving sphere 22, the driving sphere 22 can slide along the first chute 12. As the driving sphere 22 slides to different positions of the first chute 12, the angle between the extending direction of the driving rod 21 and the plane where the flipping test bench 1 is located continuously changes. After the driving rod 21 extends, the flipping angle of the flipping test bench 1 also changes. Similarly, since the second chute 13 communicates with the spherical clamping groove 11, and the dimension W2 of the second chute 13 in the second direction (X) is greater than the diameter L of the driving sphere 22, the driving sphere 22 can slide along the second chute 13. As the driving sphere 22 slides to different positions of the second chute 13, the angle between the extending direction of the driving rod 21 and the plane where the flipping test bench 1 is located continuously changes. After the driving rod 21 extends, the flipping angle of the flipping test bench 1 also changes. In summary, through this embodiment, the tests of different flipping angles in the same flipping direction can be satisfied to meet more flipping test requirements, making the adaptation range of the flipping test device wider.

[0054] In some embodiments, the flipping test device further includes a circulation pump 3; the circulation pump 3 is installed on the flipping test bench 1, and the circulation pump 3 is connected between the water inlet and the water outlet of the battery pack.

[0055] In this embodiment, the circulation pump 3 is a circulation liquid pump for transporting reaction, absorption, separation, and absorption liquid regeneration. In this way, since the circulation pump 3 is installed on the flipping test bench 1 and the circulation pump 3 is connected between the water inlet and the water outlet of the battery pack, at the same time when the flipping test starts, the coolant is injected into the water inlet of the liquid cooling plate inside the battery pack through the circulation pump 3 to ensure the accuracy and timeliness of the flipping test experiment, and at the same time avoid the safety risks brought by manual liquid injection. Then, it can flow back into the circulation pump from the water inlet and outlet of the liquid cooling plate inside the battery pack to achieve circulation.

[0056] In some embodiments, the flipping test device further includes a temperature and smoke sensor 4; the temperature and smoke sensor 4 is installed on the flipping test bench 1 and is disposed close to the battery pack.

[0057] It should be noted that in the embodiments of the present utility model, the temperature and smoke sensor 4 is a sensor device including a temperature sensor and a smoke sensor. Among them, the smoke sensor is a device for detecting the smoke concentration in the environment. The smoke sensor can detect the change in the ion concentration in the air based on the trace ions generated by the combustion reaction, so as to judge whether there is smoke. The smoke sensor usually adopts two different detection forms: ionization chamber and photodiode. The ionization chamber smoke sensor generates a weak current by ionizing the molecules and ions in the air, detects the change in the ion concentration in the air, and thus judges whether there is smoke. The photodiode smoke sensor uses the photoelectric effect to detect smoke. The internal of the photodiode smoke sensor includes an infrared light source and a photosensitive element. When there is smoke in the air, the tiny particles in the smoke will scatter the light, causing the photosensitive element to sense the signal change, thereby identifying the smoke. In this way, since the temperature and smoke sensor 4 is installed on the flipping test bench 1 and is arranged close to the battery pack, when the battery pack flips with the flipping test bench 1, in the case of temperature rise and smoke generation, it can be sensed by the smoke sensor in the first time, which is convenient for processing in the first time to improve the safety of the flipping test process.

[0058] The temperature sensor is a device for measuring the ambient temperature. The working principle of the temperature sensor is based on the change in resistivity of different substances under temperature change, and uses elements such as temperature-sensitive resistors, thermocouples, and thermal resistors to detect the ambient temperature. Common temperature sensors include thermocouples, thermal resistors, and semiconductor temperature sensors. Among them, the thermocouple connects the solder joints of two different metals together and measures the temperature with the electromotive force caused by the temperature difference. The thermal resistor measures the temperature by using the change of the metal resistance under temperature change. The semiconductor temperature sensor uses the change of the resistivity of the semiconductor material with temperature and converts the resistance value into a temperature value through a conversion circuit. In this way, since the temperature and smoke sensor 4 is installed on the flipping test bench 1 and is arranged close to the battery pack, when the battery pack flips with the flipping test bench 1 and the temperature is abnormal, it can be sensed by the temperature sensor in the first time, which is convenient for processing in the first time to improve the safety of the flipping test process.

[0059] In some embodiments, the temperature and smoke sensor 4 includes a sensor body 41 and a telescopic rod 42; the sensor body 41 is installed at the end of the telescopic rod 42 in the first direction (Z). The sensor body 41 is installed on the flipping test bench 1, and the length of the telescopic rod 42 in the first direction (Z) is adjustable. In this way, since the length of the telescopic rod 42 in the first direction (Z) is adjustable, during the flipping test process of the battery pack, the smoke and temperature data of the battery pack can be detected throughout the flipping process of the battery pack, further improving the safety of the flipping test process.

[0060] In some embodiments, the flip test device further includes a control center 5; the temperature and smoke sensor 4 and the circulation pump 3 are electrically connected to the control center 5, and the control center 5 is used to control the circulation pump 3 and collect the information collected by the temperature and smoke sensor 4. In this way, while facilitating the real-time collection of the temperature information and smoke information of the battery pack, it is convenient to control the circulation pump 3 to inject the coolant into the water inlet of the liquid cooling plate inside the battery pack to ensure the accuracy of the control. In addition, the control center 5 can also be connected to the fire protection system. When the temperature of the battery pack is abnormal or the smoke is large, the sprinkler device of the fire protection system can be activated through the control center 5, thereby enhancing the safety of the flip test process.

[0061] In some embodiments, a plurality of screw holes 14 are formed in the flip test bench 1; the plurality of screw holes 14 are spaced apart along at least one of the second direction (X) or the third direction (X). In this way, the battery pack can be fixed on the flip test bench 1 through the screw holes 14, and the flip requirements of different-sized battery packs can be adapted by the plurality of screw holes 14 spaced apart along at least one of the second direction (X) or the third direction (X).

[0062] In some embodiments, the plurality of screw holes 14 are arranged in a matrix.

[0063] It should be noted that since the battery pack is usually square in structure, when the plurality of screw holes 14 are arranged in a matrix, when the size of the battery pack changes, there is no need to replace the flip test bench 1, and the flip test of different-sized battery packs can be completed on the same flip test bench 1, and the opening positions of the screw holes 14 are more adapted to the fixing requirements of the battery pack.

[0064] In some embodiments, the flip test device further includes a base 6; the end of the driving support rod 2 away from the flip test bench 1 is detachably connected to the base 6.

[0065] It should be noted that the end of the driving support rod 2 away from the flip test bench 1 can be detachably connected to the base 6 by any one of clamping, threaded connection, riveting, etc. In this way, on the one hand, it is convenient to install the driving support rod 2, and on the other hand, the overall strength of the flip test device can be enhanced through the base 6.

[0066] As can be seen from the above embodiments, in the embodiments of the present utility model, since the flipping test bench 1 includes a first median line Z1 extending along the second direction (X) and a second median line Z2 extending along the third direction (Y), and the first median line Z1 and the second median line Z2 divide the flipping test bench 1 into four regions, and at least one driving support rod 2 is drivingly connected in each region, wherein the driving support rod can telescopically move along the first direction (Z), so when at least two driving support rods 2 on one side of the first median line Z1 extend, the flipping test bench 1 can flip around the first median line Z1, that is, the flipping test bench 1 drives the battery pack to flip to one side in the third direction (Y), and when at least two driving support rods 2 on one side of the second median line Z2 extend, the flipping test bench 1 can flip around the second median line Z2, that is, the flipping test bench 1 drives the battery pack to flip to one side in the second direction (X). In summary, through the flipping test device provided by the embodiments of the present application, not only can the telescopic movement of the driving telescopic rod 42 in the first direction (Z) meet the flipping test requirements at a relatively low speed, but also when performing flipping tests in different flipping directions, there is no need to reinstall the battery pack, and only the driving support rods 2 in the corresponding regions need to be extended or shortened, thereby avoiding the safety risks brought by reinstalling the battery pack.

[0067] The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0068] Although the preferred embodiments of the embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present utility model.

[0069] Finally, it should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or terminal device including the said element.

[0070] The above has introduced the present utility model in detail. Specific examples are used in this article to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A rollover test device for a battery pack rollover test, characterized in that: The rollover test device has a first direction, a second direction and a third direction which intersect each other; include: A rollover test bench and a plurality of driving support rods, wherein the battery pack is stacked on the rollover test bench along the first direction, the rollover test bench comprises a first center line Z1 extending along the second direction, and a second center line Z2 extending along the third direction, and the first center line Z1 and the second center line Z2 divide the rollover test bench into four areas, each of the areas is driven and connected to at least one driving support rod, wherein the driving support rod can be extended and retracted along the first direction; When at least two of the driving support rods located on one side of the first center line Z1 are extended, the flip test platform can flip around the first center line Z1; when at least two of the driving support rods located on one side of the second center line Z2 are extended, the flip test platform can flip around the second center line Z2.

2. The rollover test device according to claim 1, characterized in that: The driving support rod comprises a driving rod and a driving ball; The driving ball is connected to the end of the driving rod in the first direction, and a spherical clamping groove is provided on the rollover test bench, and the driving ball is embedded in the spherical clamping groove.

3. The rollover test device according to claim 2, characterized in that: The spherical clamping groove is provided with first sliding grooves on both sides of the second direction, and the spherical clamping groove is provided with second sliding grooves on both sides of the third direction; The first slide groove is connected to the spherical snap-in groove, and the dimension W1 of the first slide groove in the third direction is larger than the diameter L of the driving ball; the second slide groove is connected to the spherical snap-in groove, and the dimension W2 of the second slide groove in the second direction is larger than the diameter L of the driving ball.

4. The rollover test device according to claim 1, characterized in that: The rollover test device also includes a circulation pump; The circulation pump is installed on the rollover test bench, and the circulation pump is connected between the water inlet and the water outlet of the battery pack.

5. The rollover test device according to claim 4, characterized in that: The rollover test device also includes a temperature smoke sensor; The temperature smoke sensor is installed on the rollover test bench and is arranged close to the battery pack.

6. The rollover test device according to claim 5, characterized in that: The temperature smoke sensor comprises a sensor body and a telescopic rod; The sensor body is mounted on the end of the telescopic rod in the first direction, the sensor body is mounted on the rollover test bench, and the length of the telescopic rod in the first direction is adjustable.

7. The rollover test device according to claim 5, characterized in that: The rollover test device also includes a control center; The temperature smoke sensor and the circulation pump are electrically connected to the control center, and the control center is used to control the circulation pump and to collect information collected by the temperature smoke sensor.

8. The rollover test device according to claim 1, characterized in that: The flip test bench is provided with a plurality of screw holes; The plurality of screw holes are distributed at intervals along at least one of the second direction or the third direction.

9. The rollover test device according to claim 8, characterized in that: The plurality of screw holes are distributed in a matrix.

10. The rollover test device according to claim 1, characterized in that: The rollover test device also includes a base; One end of the driving support rod away from the rollover test bench is detachably connected to the base.

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