CN215811508U - Simulation test device for bottom impact of vehicle power battery pack - Google Patents
Simulation test device for bottom impact of vehicle power battery pack Download PDFInfo
- Publication number
- CN215811508U CN215811508U CN202121215978.1U CN202121215978U CN215811508U CN 215811508 U CN215811508 U CN 215811508U CN 202121215978 U CN202121215978 U CN 202121215978U CN 215811508 U CN215811508 U CN 215811508U
- Authority
- CN
- China
- Prior art keywords
- power battery
- impact
- battery pack
- vehicle
- excitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of testing devices, and particularly discloses a simulation test device for bottom impact of a vehicle power battery pack. The testing device comprises a loading mechanism and an impact assembly. The loading mechanism comprises a base and a plurality of excitation assemblies, wherein the excitation assemblies are arranged in one-to-one correspondence with the wheels and used for applying vibration excitation to the wheels; the impact assembly includes an impact protrusion located at a bottom of the test vehicle for impacting the power pack during vibration of the test vehicle. The testing device can test the security fire-proof performance and the like of the power battery pack of the electric automobile, and is convenient for improving the security fire-proof performance of the bottom of the power battery pack.
Description
Technical Field
The utility model relates to the technical field of testing devices, in particular to a simulation test device for bottom impact of a vehicle power battery pack.
Background
In a new energy electric vehicle, a power battery pack is one of safety parts of the electric vehicle, and has an important and direct influence on the safety performance of the whole vehicle. In order to meet the requirement of a user on the endurance mileage of a current new energy electric automobile and be limited by the overall layout of the automobile, a power battery pack of the electric automobile is usually placed below a seat floor.
However, the new energy electric automobile on the market has the whole vehicle fire accident caused by the collision of the power battery pack. In order to improve the bottom collision safety performance of the new energy electric automobile, the bottom of the power battery pack needs to be subjected to collision detection verification so as to avoid potential safety hazards of the new energy electric automobile.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a simulation test device for bottom impact of a vehicle power battery pack, which can simulate the impact condition of the power battery pack of an electric vehicle and further provide necessary test basis for optimization of the electric vehicle.
In order to achieve the above object, an embodiment of the present invention discloses a simulation test apparatus for bottom impact of a vehicle power battery pack, wherein a test vehicle to be impacted comprises a vehicle body, the power battery pack and a plurality of wheels, the power battery pack is arranged at the bottom of the vehicle body, the plurality of wheels are rotatably arranged on the vehicle body and protrude out of the bottom of the vehicle body, and the simulation test apparatus for bottom impact of the vehicle power battery pack comprises:
a loading mechanism including a base and a plurality of excitation assemblies disposed in one-to-one correspondence with the plurality of wheels for applying a vibrational excitation to the wheels; and
the impact assembly comprises an impact convex part which is positioned at the bottom of the test vehicle and used for impacting the power battery pack in the vibration process of the test vehicle.
As an alternative implementation, in an embodiment of the present invention, the excitation assembly includes:
the positioning column is fixedly arranged on the base;
the vibration exciter is arranged on the positioning column; and
bear the dish, bear the dish set up in the vibration exciter is in order to be used for bearing the wheel.
As an optional implementation manner, in an embodiment of the present invention, the number of the wheels and the excitation assemblies is four, four excitation assemblies are disposed in one-to-one correspondence with the four wheels, and vibration excitations of the four excitation assemblies are independent from each other.
As an alternative implementation, in an embodiment of the utility model, the impact assembly further includes a mounting plate and a support member, the mounting plate is supported by the support member to be disposed above the base and at the bottom of the test vehicle, and the impact protrusion is disposed on the mounting plate.
As an alternative embodiment, in an embodiment of the utility model, the impact protrusion comprises a deceleration strip.
As an alternative implementation manner, in an embodiment of the utility model, the striking protrusion is multiple, and multiple striking protrusions are arranged on the mounting plate at intervals for striking the power battery pack from different positions.
As an optional implementation manner, in an embodiment of the present invention, the impact assembly further includes a mounting plate and a support member, the mounting plate is supported by the support member and disposed above the base and at the bottom of the test vehicle, the impact protrusion is disposed on the mounting plate, and the mounting plate is provided with an avoidance through hole for avoiding the carrier tray.
As an alternative implementation manner, in the embodiment of the utility model, in the initial state, the distance between the impact protrusion and the power battery pack is 140mm to 180 mm.
As an optional implementation manner, in an embodiment of the present invention, the simulation test apparatus further includes a controller, and the controller is electrically connected to the excitation assembly for controlling the excitation assembly.
Compared with the prior art, the simulation test device for the bottom impact of the vehicle power battery pack at least has the following beneficial effects:
when the testing device provided by the utility model is adopted to impact the power battery pack of the test vehicle, the excitation assembly is utilized to apply vibration excitation to the wheels of the test vehicle, the vibration excitation can be transmitted to the vehicle body from the wheels of the test vehicle, the vibration of the vehicle body can drive the power battery pack arranged at the bottom of the vehicle body to vibrate, and when the power battery pack vibrates, the power battery pack can impact the impact convex part arranged at the bottom of the test vehicle, so that the condition that the power battery pack impacts in the driving process of the vehicle is simulated, the security and fire resistance performance and the like of the power battery pack of the electric vehicle can be further detected, the security and fire resistance performance at the bottom of the power battery pack is conveniently improved, and the potential safety hazard of the vehicle is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the disclosure at a first viewing angle;
FIG. 2 is a schematic structural diagram of a first simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the disclosure at a second viewing angle;
FIG. 3 is a schematic structural diagram of a loading mechanism part of a simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the disclosure;
fig. 4 is a partial schematic structural view of the impact assembly disclosed in the embodiments of the present invention.
FIG. 5 is a schematic structural diagram of a second simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the disclosure at a first viewing angle;
FIG. 6 is a schematic structural diagram of a second simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the disclosure at a second viewing angle;
FIG. 7 is an exploded view of FIG. 5 or FIG. 6;
fig. 8 is a schematic structural diagram of a second simulation test device for bottom impact of a vehicle power battery pack according to an embodiment of the utility model, with a test vehicle removed.
Icon: 10. testing the vehicle; 11. a vehicle body; 12. a power battery pack; 13. a wheel; 20. a loading mechanism; 21. a base; 22. an excitation assembly; 221. a positioning column; 222. a vibration exciter; 223. a carrier tray; 30. an impact assembly; 31. mounting a plate; 311. avoiding the through hole; 32. striking the boss.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the particular nature and configuration of which may be the same or different, and not intended to indicate or imply the relative importance or importance of the indicated device, element, or component.
The following detailed description is made with reference to the accompanying drawings.
Referring to fig. 1 and 2, according to an embodiment of the present invention, a simulation test device, hereinafter referred to as a test device, for bottom impact of a vehicle power battery pack is provided. The test device is used for carrying out a battery pack bottom impact simulation test on a test vehicle 10, the test vehicle 10 comprises a vehicle body 11, a power battery pack 12 and a plurality of wheels 13, the power battery pack 12 is arranged at the bottom of the vehicle body 11, and the wheels 13 are rotatably arranged on the vehicle body 11 and protrude out of the bottom of the vehicle body 11. Wherein the testing device comprises a loading mechanism 20 and a striking assembly 30.
Specifically, the loading mechanism 20 includes a base 21 and a plurality of excitation assemblies 22, the plurality of excitation assemblies 22 being provided in one-to-one correspondence with the plurality of wheels 13 for applying a vibration excitation to the wheels 13; the impact assembly 30 includes an impact boss 32, the impact boss 32 being located at the bottom of the test vehicle 10 for impacting with the power pack 12 during vibration of the test vehicle 10.
It is to be understood that the term "impact protrusion 32 is located at the bottom of the test vehicle 10 for impacting the power battery pack 12 during vibration of the test vehicle 10" as used herein means that the impact protrusion 32 functions to impact the power battery pack 12 of the test vehicle 10 during vibration of the test vehicle 10, and does not mean that the power battery pack 12 will always impact the impact protrusion 32 as long as the test vehicle 10 vibrates, and whether the impact occurs depends on the magnitude of the vibration excitation to which the test vehicle 10 is subjected.
When the testing device of the utility model is adopted to impact the power battery pack 12 of the test vehicle 10, firstly, the test vehicle 10 is placed on the testing device, the operation is that the wheels 13 of the test vehicle 10 are placed on the exciting device in a one-to-one correspondence manner, at the moment, the whole loading mechanism 20 is positioned at the bottom of the test vehicle 10, the exciting assembly 22 is utilized to apply vibration excitation to the wheels 13 of the test vehicle 10, the vibration excitation can be transmitted from the wheels 13 of the test vehicle 10 to the vehicle body 11, the vibration of the vehicle body 11 can drive the power battery pack 12 arranged at the bottom of the vehicle body 11 to vibrate, when the power battery pack 12 vibrates, the power battery pack can impact the impact convex part 32 arranged at the bottom of the test vehicle 10, thereby simulating the condition that the bottom of the power battery pack 12 impacts in the driving process of the vehicle, and further detecting the safety and fire resistance performance of the power battery pack 12 of the electric vehicle, the safety and fire-proof performance of the bottom of the power battery pack 12 is improved conveniently.
In addition, when the bottom of the power battery pack 12 collides with the collision convex portion 32, each system of the test vehicle 10 changes correspondingly, and a tester can monitor the influence of the collision of the power battery pack 12 on the test vehicle 10 according to the change of each system of the test vehicle 10, so that the designer can optimize the design of the electric vehicle according to the test result, and the potential safety hazard of the electric vehicle can be reduced.
Specifically, the test vehicle 10 in the present embodiment further includes a power system and an electrical system (not shown in the drawings), both of which are electrically connected to the power battery pack 12. That is, the power battery pack 12 in the present embodiment may be used to provide electrical energy to the power system and the electrical system. In the test process, if the bottom of the power battery pack 12 is changed by the impact property, the corresponding power system and the corresponding electrical system are also easy to change to a certain extent, so that the power system and the electrical system are arranged on the test vehicle 10, the performance change condition of the power battery pack 12 when being impacted can be more accurately tested, and necessary design parameters can be provided for the optimization of the electric vehicle.
Alternatively, the test vehicle 10 in the present invention may be a vehicle having three wheels 13, may also be a vehicle having four wheels 13, or a vehicle having four or more wheels 13. In the present embodiment, the vehicle is explained to have four wheels 13.
In order to perform the bottom impact simulation test of the power battery pack 12 on the test vehicle 10 having four wheels 13, the excitation assemblies 22 are also provided in four in the present embodiment, the four excitation assemblies 22 are provided in one-to-one correspondence with the four wheels 13, and the vibration excitations of the four excitation assemblies 22 are independent of each other. That is, the four excitation assemblies 22 in the present embodiment are relatively independently disposed, the vibration excitation motions of the excitation assemblies 22 are independent from each other and do not affect each other, and when one excitation assembly 22 applies vibration excitation to the corresponding wheel 13, the remaining excitation assemblies 22 are not affected.
Specifically, the four wheels 13 of the test vehicle 10 are arranged on two sides of the vehicle body 11 in two rows, and when two excitation assemblies 22 located at the front end of the vehicle body 11 apply vibration excitation to the two wheels 13 located at the front end of the vehicle body 11 and the two excitation assemblies 22 located behind the vehicle body 11 are not moved or vibrate, the situation that the bottom of the power battery pack 12 is impacted when the two wheels 13 located at the front end or the rear end of the vehicle pass through a pit in a double-wheel mode and pass through a bank in a double-wheel mode can be simulated; similarly, when the two excitation assemblies 22 located at the front end of the vehicle body 11 are stationary or vibrate, and the two excitation assemblies 22 located at the rear end of the vehicle body 11 apply vibration excitation to the two wheels 13 at the rear end of the vehicle body 11, the situation that the bottom of the power battery pack 12 is impacted when the two wheels 13 at the front end or the rear end pass through a pit and a bank in a double-wheel mode can be simulated; when three of the four excitation assemblies 22 are fixed or vibrate, and the other one applies vibration excitation to the corresponding wheel 13, the situation that the bottom of the power battery pack 12 is impacted when one wheel 13 passes through a pit on one side and a bank on one side can be simulated; when the two excitation assemblies 22 on one side of the vehicle body 11 apply vibration excitation to the two wheels 13 on one side of the vehicle body 11, and the two excitation assemblies 22 on the other side are not moved, the situation that the bottom of the power battery pack 12 is impacted when the vehicle passes through a pit and a sill laterally can be simulated.
That is to say, in the present embodiment, by making each excitation assembly 22 mutually independent apply vibration excitation to the wheel 13, most of the situations that the bottom of the power battery pack 12 may be impacted during the running process of the vehicle can be simulated, the security and fire protection performance of the power battery pack 12 can be effectively detected, and the design of the electric vehicle is facilitated to be optimized.
Referring to fig. 1 to 3, in practical use, the base 21 of the loading mechanism 20 in the present embodiment may be a plate-shaped structure with a large weight, or may be other structures capable of positioning and supporting the plurality of excitation assemblies 22 and the test vehicle 10, such as the ground.
Further, the excitation assembly 22 in the present embodiment includes a positioning column 221, an exciter 222, and a bearing plate 223.
Wherein, reference column 221 is fixed to be set up in base 21, and this reference column 221 can be cylinder, prismatic, elliptic cylinder or other special-shaped columnar structure, and during the actual installation, this reference column 221 can be in the same place with base 21 fixed connection through modes such as bolted connection, buckle connection, welded connection. In order to support the test vehicle 10, the positioning pillars 221 in this embodiment may be made of a high-strength material, such as iron or an alloy material.
The vibration exciter 222 is disposed on the positioning column 221, optionally, the vibration exciter 222 may be an actuator or other structural component capable of vibrating up and down, and the vibration exciter 222 may be an electrodynamic vibration exciter, an electromagnetic vibration exciter, an electrohydraulic vibration exciter, or a hydraulic vibration exciter, and during actual operation, the vibration exciter 222 vibrates on the positioning column 221, so as to drive the test vehicle 10 to vibrate, and the structure is simple, and is convenient for simulating a working condition of the vehicle.
The bearing plate 223 is provided to the exciter 222 so as to be used for bearing the wheel 13. During specific connection, the bearing plate 223 can be fixedly connected to the vibration exciter 222 through a snap connection, a bolt connection, a welding connection, and the like. In addition, adopt in this embodiment to bear dish 223 and bear wheel 13, can improve wheel 13 and the area of contact who bears dish 223 to can avoid wheel 13 to slide down from bearing dish 223 in the vibration process, be convenient for improve this testing arrangement's stability.
Alternatively, the carrier plate 223 in this embodiment may be a circular plate, a square plate or other shaped plate structure. This bear the direction perk of dish 223 outward edge orientation test vehicle 10, so set up, when wheel 13 when bearing dish 223 vibration emergence aversion, bear the perk position of dish 223 and can exert certain resistance to wheel 13, and then can avoid test vehicle 10 to a certain extent to slide down from bearing dish 223.
Further, in the initial state, the projection of the wheel 13 on the carrier plate 223 is located in the carrier plate 223, that is, the outer shape of the carrier plate 223 in this embodiment is larger than the outer shape of the wheel 13, so as to facilitate effective carrying of the wheel 13.
Referring to fig. 1 to 4, the impact assembly 30 of the present embodiment further includes a mounting plate 31 and a support member (not shown), wherein the mounting plate 31 is supported by the support member and disposed above the base 21 and at the bottom of the test vehicle 10, and the impact protrusion 32 is disposed on the mounting plate 31. Through the effect of mounting panel 31, be convenient for support striking convex part 32, guarantee that can strike with striking convex part 32 in the vibration process of test vehicle 10.
Illustratively, the mounting plate 31 in this embodiment is a stable-structure and high-strength structure such as an iron base plate and an alloy base plate, and can ensure the service life of the test apparatus. The supporting member is a supporting column, a supporting block, or other structural members capable of supporting the mounting plate 31 on the base 21 in a suspended manner.
In some embodiments, the impact convex portion 32 is a speed bump, and the impact convex portion 32 is set as a speed bump, so that the real working condition of the electric vehicle in the driving process can be simulated to a certain extent, and the simulation accuracy of the test apparatus in this embodiment can be improved. Of course, in other embodiments of the present invention, the impact protrusion 32 may be a protrusion made of hard material, and the like, and any protrusion that can simulate the actual operation of the vehicle may be within the protection scope of the present invention.
Alternatively, the striking protrusion 32 may be provided in one or more number, wherein fig. 1 and 2 in the present embodiment show a case where the striking protrusion 32 is provided in one, and fig. 5, 6, and 7 show a case where the striking protrusion 32 is provided in more number.
As shown in fig. 8, when the striking protrusion 32 is provided in plurality, the plurality of striking protrusions 32 are provided on the mounting plate 31 at intervals, and thus can be used for striking the power battery pack 12 from different positions. More specifically, a plurality of impact convex parts 32 are arranged at intervals along the length direction of the vehicle body 11, and when the test vehicle 10 vibrates, the impact convex parts 32 can impact the power battery pack 12 from different positions, so that conditions which may occur in the working process of the vehicle can be simulated in all directions, and the simulation precision and the test precision of the test device can be improved.
In fig. 8, four impact protrusions 32 are provided on the mounting plate 31 at intervals in the longitudinal direction of the vehicle body 11, and in the test, the four impact protrusions 32 can impact the bottom of the power battery pack 12 from four different positions, and the impact that can occur during the operation of the vehicle can be simulated well. Of course, in other embodiments of the present invention, the striking protrusions 32 may be provided in two, three, or four or more, and any other modifications within the spirit of the present invention are within the scope of the present invention.
In the actual test, the number of times of the impacts between each impact protrusion 32 and the power battery pack 12 needs to be determined according to the life cycle of the vehicle design and by combining with actual research, and is not particularly limited in this embodiment.
Further, in the initial state, the distance between the striking protrusion 32 and the power battery pack 12 is 140mm to 180mm, for example, 140mm, 150mm, 160mm, 170mm, or 180 mm. It is understood that the initial state herein refers to a state in which the test vehicle 10 is placed on the loading mechanism 20 and the excitation assembly 22 is not excited by vibration.
In the normal running process, the height between the power battery pack of the electric automobile and the ground is 130mm to 170mm, and even in the full-load state of the electric automobile, the height between the power battery pack 12 and the ground is still 120mm to 160 mm. Therefore, if the distance between the impact protrusion 32 and the power battery pack 12 is less than 140mm, the power battery pack 12 may not collide with the impact protrusion 32, a long time of test is required to obtain accurate test data, and when the distance between the impact protrusion 32 and the power battery pack 12 is greater than 180mm, it is difficult to simulate the actual driving condition of the electric vehicle, and the obtained test data is not reliable enough.
That is, in the present embodiment, by setting the distance between the impact protrusion 32 and the power battery pack 12 to be 140mm to 180mm, accurate test data can be obtained in a short test time, and the safety and fire performance of the power battery pack 12 can be more accurately tested.
In some embodiments, in order to prevent interference between the mounting plate 31 and the excitation assembly 22 during the actual test of the fireproof performance of the power battery pack 12 on the test vehicle 10, the mounting plate 31 is provided with an avoiding through hole 311 for avoiding the carrier plate 223, and during the actual test, the carrier plate 223 can vibrate along the up-and-down direction of the avoiding through hole 311 without interfering with the mounting plate 31.
Further, for automatic control, the simulation test apparatus in this embodiment further includes a controller (not shown in the figure), which is electrically connected to the excitation assembly 22 and can be used for controlling the excitation assembly 22. In the actual test process, a tester can control the vibration frequency and the like of each excitation assembly 22 from the controller end, so as to drive the test vehicle 10 to vibrate to perform the impact test on the bottom of the power battery pack 12.
In summary, when the excitation assembly 22 is used to apply a vibration excitation to the wheels 13 of the test vehicle 10, the vibration excitation can be transmitted from the wheels 13 of the test vehicle 10 to the vehicle body 11, the vibration of the vehicle body 11 can drive the power battery pack 12 arranged at the bottom of the vehicle body 11 to vibrate, and when the power battery pack 12 vibrates, the power battery pack 12 can collide with the collision protrusion 32 arranged at the bottom of the test vehicle 10, so as to simulate the situation that the bottom of the power battery pack 12 collides during the running process of the vehicle, and further, the security and fire protection performance of the power battery pack 12 of the electric vehicle can be detected, so that the security and fire protection performance at the bottom of the power battery pack 12 can be improved, and the potential safety hazard of the vehicle can be reduced.
That is, according to the simulation test device for bottom impact of the vehicle power battery pack, the front wheel and the rear wheel of the whole vehicle are placed on the tray of the loading mechanism, and the excitation assembly on the loading mechanism can effectively apply vertical vibration excitation to the wheels. And the deceleration strip is fixed on the mounting plate below the power battery pack, so that when the whole vehicle vibrates up and down, the bottom of the power battery pack can collide with the deceleration strip, and the safety disaster prevention performance of the bottom of the power battery pack of the electric vehicle can be detected. In addition, in order to simulate the impact of various scenes, the deceleration strip position below the power battery pack has various conditions, so that the safety disaster prevention performance at the bottom of the power battery pack can be improved, and the potential safety hazard of a vehicle is reduced.
The simulation test device for bottom impact of the vehicle power battery pack disclosed by the embodiment of the utility model is described in detail, specific examples are applied in the description to explain the principle and the implementation mode of the utility model, and the description of the embodiment is only used for helping to understand the simulation test device for bottom impact of the vehicle power battery pack and the core idea of the simulation test device; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. The utility model provides a simulation test device for vehicle power battery package bottom striking, its characterized in that, the test vehicle of treating the striking includes automobile body, power battery package and a plurality of wheel, the power battery package set up in the bottom of automobile body, it is a plurality of the wheel rotationally set up in automobile body and protrusion in the bottom of automobile body, a simulation test device for vehicle power battery package bottom striking includes:
a loading mechanism including a base and a plurality of excitation assemblies disposed in one-to-one correspondence with the plurality of wheels for applying a vibrational excitation to the wheels; and
the impact assembly comprises an impact convex part which is positioned at the bottom of the test vehicle and used for impacting the power battery pack in the vibration process of the test vehicle.
2. The simulation test device for bottom impact of vehicle power battery pack according to claim 1, characterized in that the excitation assembly comprises:
the positioning column is fixedly arranged on the base;
the vibration exciter is arranged on the positioning column; and
bear the dish, bear the dish set up in the vibration exciter is in order to be used for bearing the wheel.
3. The simulation test device for bottom impact of the vehicle power battery pack according to claim 1, wherein the number of the wheels and the excitation assemblies is four, the four excitation assemblies are arranged in one-to-one correspondence with the four wheels, and vibration excitations of the four excitation assemblies are independent of each other.
4. The simulation test device for bottom impact of vehicle power battery pack according to claim 1, wherein the impact assembly further comprises a mounting plate and a support member, the mounting plate is supported by the support member to be disposed above the base and at the bottom of the test vehicle, and the impact protrusion is disposed on the mounting plate.
5. The simulation test device for bottom impact of vehicle power battery pack according to claim 4, characterized in that the impact protrusion comprises a speed bump.
6. The simulation test device for bottom impact of the vehicle power battery pack according to claim 4, wherein the impact protrusions are arranged in plurality at intervals on the mounting plate and used for impacting the power battery pack from different positions.
7. The vehicle power battery pack bottom impact simulation test device as claimed in claim 2, wherein the impact assembly further comprises a mounting plate and a support member, the mounting plate is supported by the support member to be disposed above the base and at the bottom of the test vehicle, the impact protrusion is disposed on the mounting plate, and an avoiding through hole for avoiding the carrier plate is disposed on the mounting plate.
8. The simulation test device for vehicle power pack bottom impact according to any one of claims 1 to 7, characterized in that the distance of the impact protrusion from the power pack in an initial state is 140mm to 180 mm.
9. The simulation test device for bottom impact of vehicle power battery pack according to any one of claims 1 to 7, further comprising a controller electrically connected with the excitation assembly for controlling the excitation assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215978.1U CN215811508U (en) | 2021-06-01 | 2021-06-01 | Simulation test device for bottom impact of vehicle power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121215978.1U CN215811508U (en) | 2021-06-01 | 2021-06-01 | Simulation test device for bottom impact of vehicle power battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215811508U true CN215811508U (en) | 2022-02-11 |
Family
ID=80174854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121215978.1U Active CN215811508U (en) | 2021-06-01 | 2021-06-01 | Simulation test device for bottom impact of vehicle power battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215811508U (en) |
-
2021
- 2021-06-01 CN CN202121215978.1U patent/CN215811508U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4622934B2 (en) | Falling body for impact test | |
| CN109205422B (en) | Elevator accelerometer sensor data usage | |
| Farrahi et al. | Simulation of vehicle body spot weld failures due to fatigue by considering road roughness and vehicle velocity | |
| CN105675309A (en) | Pure electric vehicle power battery bump test device and test method | |
| CN105172722A (en) | Energy absorbing member for a bumper assembly of a vehicle | |
| US7380436B2 (en) | Rollover component test fixture and methodology | |
| US9726570B2 (en) | Test jig for exterior door handle of vehicle | |
| CN215811508U (en) | Simulation test device for bottom impact of vehicle power battery pack | |
| CN113093032B (en) | Electric automobile battery pack support bottom test bench and test method | |
| JP2007292695A (en) | Crash testing device and crash test method for automobile body | |
| Lau et al. | A comparison of frontal and side impact: crash dynamics, countermeasures and subsystem tests | |
| CN212229116U (en) | Battery dynamic collision impact test device | |
| CN214373363U (en) | Bottom supporting test tool and bottom supporting test device | |
| CN207036439U (en) | A kind of fuel tank overturning testing device | |
| CN109682615A (en) | A kind of suspension type single track car body strength test device | |
| CN112985734A (en) | Side column impact test device and test method | |
| KR20220002419U (en) | Drum obstacle anti-loosening device and vehicle testing device | |
| CN215832970U (en) | Collision test device suitable for car bumper beam assembly | |
| CN113218609A (en) | Change equipment and realize lithium cell package bottom ball and hit experimental apparatus | |
| CN208188304U (en) | A kind of automobile starting battery fuel economy contrast test device | |
| JP2021110564A (en) | Collision test device | |
| CN106080204A (en) | A kind of electric automobile collision processing method and processing device | |
| JP2011149947A (en) | Crash testing device and crash test method for automobile body | |
| CN212180220U (en) | Vibration impact testing tool and device for battery pack | |
| KR100488701B1 (en) | A sled impact test system of vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |