CN114252225A - Battery pack vibration durability testing device - Google Patents
Battery pack vibration durability testing device Download PDFInfo
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- CN114252225A CN114252225A CN202011005151.8A CN202011005151A CN114252225A CN 114252225 A CN114252225 A CN 114252225A CN 202011005151 A CN202011005151 A CN 202011005151A CN 114252225 A CN114252225 A CN 114252225A
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- 238000001228 spectrum Methods 0.000 claims description 22
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- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 description 12
- 230000032683 aging Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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Abstract
The invention discloses a battery pack vibration endurance testing device, which comprises: bottom plate, support, loading subassembly and centre gripping subassembly, support detachably locates on the bottom plate, loading subassembly's one end detachably locates on the support, the centre gripping subassembly with loading subassembly's the other end movably connects, the centre gripping subassembly includes first clamping part and second clamping part, first clamping part with the both ends of second clamping part centre gripping battery package respectively, it is right that loading subassembly is suitable for according to loading way register for easy reference the battery package applys the vibration, thereby the test battery package vibration durability. According to the vibration durability test device for the battery pack, disclosed by the embodiment of the invention, the vibration durability of the battery pack can be tested under a corrosion condition, so that the reliability of the battery pack is improved, and the device is simple in structure and high in practicability.
Description
Technical Field
The invention relates to the technical field of vibration clamps, in particular to a battery pack vibration endurance testing device.
Background
At present, in order to attract users, major host factories make commitments such as "5 years or 50 kilometers" and "life guarantee" of the battery cell quality guarantee at a time, but the battery cell quality guarantee of a new energy automobile power battery pack is closely related to the structural fatigue of the battery pack, and the vibration endurance test of the battery pack is a short board in the industry. In order to meet the requirement of long quality guarantee of the battery core, the durability and the corrosion resistance of the shell structure of the power battery pack need to be improved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a battery pack vibration endurance testing apparatus, which can test vibration endurance of a battery pack under a corrosive condition, thereby improving reliability of the battery pack, and has a simple structure and strong practicability.
According to the battery pack vibration endurance testing apparatus of the embodiment of the present invention, the battery pack vibration endurance testing apparatus includes: bottom plate, support, loading subassembly and centre gripping subassembly, support detachably locates on the bottom plate, loading subassembly's one end detachably locates on the support, the centre gripping subassembly with loading subassembly's the other end movably connects, the centre gripping subassembly includes first clamping part and second clamping part, first clamping part with the both ends of second clamping part centre gripping battery package respectively, it is right that loading subassembly is suitable for according to loading way register for easy reference the battery package applys the vibration, thereby the test battery package vibration durability.
According to the device for testing the vibration durability of the battery pack, the first clamping part and the second clamping part clamp the two opposite ends of the battery pack, so that the battery pack can be clamped, and automobile tires conforming to actual conditions are distributed on the two opposite sides of the battery pack. Further, the first clamping portion and the second clamping portion are mutually independent, so that different influences of tires on the battery pack can be simulated when the automobile actually runs, and when the loading assembly applies vibration to the first clamping portion and the second clamping portion respectively, the first clamping portion and the second clamping portion can transmit the vibration to the battery pack respectively, so that two opposite ends of the battery pack vibrate, and the testing device can truly measure the anti-vibration durability of the battery pack.
In addition, the battery pack vibration endurance testing device according to the present invention may further have the following additional technical features:
in some embodiments of the present invention, the first clamping portion includes a first connecting position, the second clamping portion includes a second connecting position, the first connecting position and the second connecting position are respectively provided with a plurality of connecting holes, after a plurality of connecting members respectively pass through the plurality of connecting holes, two ends of the battery pack are respectively connected to the first connecting position and the second connecting position, and the plurality of connecting members and the plurality of connecting holes are arranged in a one-to-one correspondence manner.
In some embodiments of the present invention, the battery pack vibration endurance testing apparatus further comprises: locking Assembly, locking Assembly movably locates first clamping part with between the second clamping part, locking Assembly includes a plurality of locking boards, and is a plurality of the locking board is followed first clamping part or the direction that the second clamping part extends is spaced apart to be set up, the both ends of locking board respectively with first clamping part with the second clamping part butt be equipped with a plurality of through-holes on the locking board, a plurality of connecting pieces pass a plurality ofly the through-hole, so that the locking board locks the battery package.
Optionally, the first clamping part includes a first sliding groove, the second clamping part includes a second sliding groove, the first sliding groove is the same as the second sliding groove in extension direction, two ends of the locking plate are respectively abutted with the first sliding groove and the second sliding groove, so that the through hole is opposite to the first sliding groove or the second sliding groove, and the locking plate can slide along the direction in which the first sliding groove or the second sliding groove extends.
Optionally, the first clamping portion may be movable toward or away from the second clamping portion, and the locking plate may be formed as a telescopic plate, such that both ends of the locking plate may abut against the first clamping portion and the second clamping portion, respectively.
In some embodiments of the present invention, the testing apparatus includes a plurality of loading assemblies, and the plurality of loading assemblies work independently of each other, the plurality of loading assemblies are respectively connected to the first clamping portion and the second clamping portion, and two adjacent loading assemblies are disposed at a distance.
Optionally, the loading assembly comprises: the loading part is suitable for loading road spectrums, the loading part is detachably connected with the support, one end of the telescopic rod is connected with the loading part, the other end of the telescopic rod is movably connected with the first clamping part or the second clamping part, and therefore the first clamping part or the second clamping part vibrates according to the road spectrums.
Optionally, the telescopic link can follow the direction from top to bottom and carry out reciprocal flexible activity, in order to adjust the level of battery package the telescopic link is kept away from one of loading portion is served and is formed first connector form the second connector on the first clamping part form the third connector on the second clamping part, first connector with behind the cooperation of second connector, first clamping part is suitable for the drive the battery package vibration, first connector with behind the cooperation of third connector, the second clamping part is suitable for the drive the battery package vibration.
In some embodiments of the invention, the road spectrum loaded by the loading part comprises: belgium, washboard, cobblestone, square pit, and torque path.
In some embodiments of the present invention, the battery pack vibration endurance testing apparatus further comprises: a spray assembly including a plurality of spray heads evenly spaced around a circumference of the battery pack, the spray heads adapted to spray liquid toward the battery pack to accelerate degradation of the battery pack.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a vibration endurance testing apparatus for a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the vibration endurance testing apparatus for a battery pack according to an embodiment of the present invention, in which the clamping assembly and the locking assembly are detached from the battery pack;
FIG. 3 is a schematic structural diagram of a loading assembly, a clamping assembly, a locking assembly, a spraying assembly and a battery pack assembly of the battery pack vibration endurance testing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a first clamping portion of a clamping assembly of a vibration endurance testing apparatus for a battery pack according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a spray control cycle chart of a spray assembly of the battery pack vibration endurance testing apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an embodiment of a loading module loading road spectrum of the battery pack vibration endurance testing apparatus according to the present invention.
Reference numerals:
a battery pack vibration endurance testing apparatus 100;
a base plate 1;
a bracket 2;
a loading assembly 3; a loading section 31; a telescopic rod 32; a first connector 321;
a clamping assembly 4; a first clamping portion 41; a first connection bit 411; a first sliding groove 412; a second connector 413; a connection hole 414; the second clamping portion 42;
a locking assembly 5; a locking plate 51;
a spray assembly 6; a spray head 61.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A battery pack vibration endurance testing apparatus 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 7.
As shown in fig. 1 to 7, a battery pack vibration endurance testing apparatus 100 according to an embodiment of the present invention includes: the base plate 1, the support 2, the loading assembly 3 and the clamping assembly 4.
Specifically, the bracket 2 is detachably provided on the base plate 1, that is, the bracket 2 can be detached from the base plate 1, and by detaching the bracket 2, not only can the damaged bracket 2 be replaced, but also, after detaching the bracket 2, it can be installed at a designated position on the base plate 1, thereby making it more convenient to test the vibration durability of the battery pack. In addition, as shown in fig. 1, the support 2 may include a plurality of sub-supports 2, and the plurality of sub-supports 2 may also be detached from the base plate 1, so that the distance between two connected sub-supports 2 may be adjusted, and the testing device 100 of the present application may test battery packs with different lengths or widths, thereby improving the universality of the testing device 100.
On support 2 was located to loading assembly 3's one end detachably, clamping component 4 and loading assembly 3's the other end movably connected, that is to say, loading assembly 3 and clamping component 4 back of linking to each other, loading assembly 3 can drive clamping component 4 vibration, and clamping component 4 is at the vibration in-process, and it can be for loading assembly 3 activity.
Further, the clamping assembly 4 comprises a first clamping portion 41 and a second clamping portion 42, the first clamping portion 41 and the second clamping portion 42 clamp two ends of the battery pack respectively, the first clamping portion 41 and the second clamping portion 42 are independent of each other, and the loading assembly 3 is suitable for applying vibration to the battery pack according to a loading road spectrum, so that the vibration durability of the battery pack is tested.
That is, the first clamping portion 41 and the second clamping portion 42 may be clamped at opposite ends of the battery pack, respectively, to clamp the battery pack, and as shown in fig. 1 and 3, the other end of the loading assembly 3 is connected to the first clamping portion 41 and the second clamping portion 42, respectively, so that after the battery pack is clamped by the first clamping portion 41 and the second clamping portion 42, the first clamping portion 41 and the second clamping portion 42 may transmit the vibration applied by the loading assembly 3 to the battery pack, thereby testing the vibration resistance of the battery pack.
In addition, the first clamping part 41 and the second clamping part 42 are respectively clamped at two opposite ends of the battery pack, and the first clamping part 41 and the second clamping part 42 are uniformly connected with the loading assembly 3, so that the vibration of an automobile tire caused by uneven road surface during the driving process of an actual automobile can be simulated, and the battery pack can vibrate along with the vibration. Further, the first clamping portion 41 and the second clamping portion 42 are independent from each other, so that different influences of each tire on the battery pack can be simulated in actual running of the automobile, and the vibration amplitude of each tire is related to the ground contacted by the tire. Therefore, the battery pack is independently clamped by the first clamping part 41 and the second clamping part 42, so that the testing device 100 conforms to the actual use condition of the automobile, and the vibration durability of the tested battery pack is more consistent with the actual condition.
It is understood that the first clamping portion 41 and the second clamping portion 42 are independent of each other, and it is understood that there is no structure between the first clamping portion 41 and the second clamping portion 42, such that the two are connected together, and the structure herein does not include a battery pack to be clamped.
In addition, the road spectrum loaded by the loading assembly 3 can be controlled according to a computer and other control mechanisms, so that the loading assembly 3 emits vibration with different frequencies, amplitudes and the like, and the road spectrum is used for collecting the road spectrum actually driven, so that the vibration tolerance of the battery pack tested by the application is more real.
According to the vibration endurance testing device 100 for the battery pack, provided by the embodiment of the invention, the first clamping part 41 and the second clamping part 42 are used for clamping the two opposite ends of the battery pack, so that not only can the battery pack be clamped, but also the automobile tires according with the actual situation are distributed on the two opposite sides of the battery pack. Further, the first clamping portion 41 and the second clamping portion 42 are independent from each other, so that different influences of tires on the battery pack can be simulated when the automobile actually runs, and when the loading assembly 3 applies vibration to the first clamping portion 41 and the second clamping portion 42 respectively, the first clamping portion 41 and the second clamping portion 42 can transmit vibration to the battery pack respectively, so that opposite ends of the battery pack vibrate, and the testing device 100 can actually measure the anti-vibration durability of the battery pack.
In some embodiments of the present invention, the first clamping portion 41 includes a first connecting position 411, the second clamping portion 42 includes a second connecting position, a plurality of connecting holes 414 are respectively formed on the first connecting position 411 and the second connecting position, after the plurality of connecting members respectively pass through the plurality of connecting holes 414, two ends of the battery pack are respectively connected to the first connecting position 411 and the second connecting position, and the plurality of connecting members are arranged in one-to-one correspondence with the plurality of connecting holes 414.
For example, as shown in fig. 4 and 5, the first connecting position 411 may be formed in a step shape, the plurality of connecting holes 414 may be spaced apart from the first connecting position 411, the second connecting position may be formed in a step shape, the plurality of connecting holes 414 may be spaced apart from the second connecting position, and after both ends of the battery pack are respectively abutted to the first connecting position 411 and the second connecting position, the plurality of connecting members pass through the battery pack and the first connecting position 411 and the second connecting position, so that the first clamping portion 41 and the second clamping portion 42 may be fixedly connected to the battery pack.
The first connection portion 411 and the second connection portion are respectively provided with a plurality of connection holes 414, which may extend along the vertical direction or the horizontal direction, without limitation. In addition, after the two ends of the battery pack are connected to the first connection position 411 and the second connection position, respectively, the first clamping portion 41 and the second clamping portion 42 abut against the battery pack toward the side of the battery pack, and the first clamping portion 41 and the second clamping portion 42 move toward the direction of approaching each other to clamp the battery pack. It is understood that the connecting member may be a bolt, a screw, or other connecting members, and is not limited herein.
In some embodiments of the present invention, the battery pack vibration endurance testing apparatus 100 further comprises: locking Assembly 5, locking Assembly 5 is movably located between first clamping part 41 and the second clamping part 42, locking Assembly 5 includes a plurality of locking plates 51, a plurality of locking plates 51 are along the direction spaced apart setting of first clamping part 41 or the extension of second clamping part 42, the both ends of locking plate 51 link to each other with first clamping part 41 and second clamping part 42 respectively, be equipped with a plurality of through-holes on locking plate 51, a plurality of connecting pieces pass a plurality of through-holes to make locking plate 51 lock the battery package.
For example, as shown in fig. 1, the locking assembly 5 is disposed between the first clamping portion 41 and the second clamping portion 42, and above the first clamping portion 41 and the second clamping portion 42. Further, the first clamping portion 41 and the second clamping portion 42 extend in the left-right direction, and the plurality of locking plates 51 are spaced apart in the left-right direction, and specifically, the locking plates 51 extend in the front-back direction, that is, the extending direction of the locking plates 51 is perpendicular to the extending direction of the first clamping portion 41 and the second clamping portion 42, and through holes are provided in the areas where the locking plates 51 abut against the first clamping portion 41 and the second clamping portion 42, respectively, through both ends of the locking plates 51, so that the connecting members can pass through the through holes, thereby fixing the locking plates 51 on the first clamping portion 41 and the second clamping portion 42.
Further, a plurality of fixing holes are formed in the locking plate 51 in a direction in which it extends, and a plurality of coupling members are respectively inserted through the plurality of fixing holes so that the locking plate 51 can be fixedly coupled to the battery pack, thereby allowing the locking plate 51 to more stably lock the battery pack. Each locking plate 51 is securely coupled to the battery pack by a plurality of coupling members and a plurality of fixing holes. By providing a plurality of locking plates 51 and fitting the plurality of locking plates 51 over the battery pack at even intervals, the plurality of locking plates 51 are fitted to be securely grasped by the battery pack, so that the battery pack is not separated from the locking assembly 5 and the clamping assembly 4 in the vibration test.
Alternatively, the first clamping portion 41 includes a first sliding groove 412, the second clamping portion includes a second sliding groove, and the first sliding groove 412 and the second sliding groove extend in the same direction, for example, as shown in fig. 4 and 5, the first sliding groove 412 and the first clamping portion 41 extend in the same direction, and the second sliding groove and the second clamping portion 42 extend in the same direction.
Further, after the two ends of the locking plate 51 abut against the first sliding groove 412 and the second sliding groove respectively, so that the through hole is opposite to the first sliding groove 412 or the second sliding groove, the locking plate 51 can slide along the extending direction of the first sliding groove 412 or the second sliding groove, that is, after the two ends of the locking plate 51 abut against the first sliding groove 412 and the second sliding groove respectively, the projection of the through hole on the vertical surface, which is arranged on the end portion of the locking plate 51, can fall into the projection of the first sliding groove 412 or the second sliding groove on the vertical surface, so that the connecting piece can pass through the first sliding groove 412 or the second sliding groove and then pass through the through hole, so that the locking plate 51 is fixed between the first clamping portion 41 and the second clamping portion 42.
When the connecting piece is not screwed down, the connecting piece is driven to move, so that the connecting piece can drive the locking plate 51 to move along the extending direction of the first sliding groove 412 or the second sliding groove, the relative position of the locking plate 51 and the battery pack is adjusted, and the battery pack is further firmly locked by the locking plate 51.
In one embodiment, the first clamping portion 41 is movable toward or away from the second clamping portion 42, and the locking plate 51 is formed as a telescopic plate such that both ends of the locking plate 51 can be respectively abutted against the first clamping portion 41 and the second clamping portion 42, whereby, when the first clamping portion 41 and the second clamping portion 42 are moved in a direction away from each other, the distance between the first clamping portion 41 and the second clamping portion 42 is increased, so that the first clamping portion 41 and the second clamping portion 42 can clamp a battery pack having a larger width or a longer length. Further, by forming the locking plate 51 as a plate that can be extended and contracted, when the distance between the first clamping portion 41 and the second clamping portion 42 is changed, the locking plate 51 can be made to perform an extension and contraction movement to change the length thereof, so that both ends of the locking plate 51 can be held in abutment with the first clamping portion 41 and the second clamping portion 42.
Alternatively, since the kinds of the length and width of the battery pack are existing, the locking plate 51 may be made into a standard member of various sizes, for example, the locking plate 51 is formed into a plate having a length of 100mm, 200mm, or the like, so that the locking plates 51 of various kinds of sizes may lock battery packs of different sizes.
In some embodiments of the present invention, the testing apparatus 100 includes a plurality of loading assemblies 3, and the plurality of loading assemblies 3 work independently of each other, the plurality of loading assemblies 3 are respectively connected to the first clamping portion 41 and the second clamping portion 42, and two adjacent loading assemblies 3 are disposed at a distance.
That is, the applied road spectrum of each loading assembly 3 may be the same or different, so that the first clamping portion 41 and the second clamping portion 42 connected to different loading assemblies 3 vibrate at different frequencies, amplitudes, times, and the like. Further, the first clamping portion 41 may be connected to a plurality of loading assemblies 3, and the plurality of loading assemblies 3 connected to the same first clamping portion 41 are also operated independently of each other, so that different end angles or regions of the first clamping portion 41 are subjected to different vibrations. A plurality of loading units 3 may be connected to the second clamping portion 42, and the plurality of loading units 3 may operate independently of each other. Therefore, after the first clamping portion 41 and the second clamping portion 42 clamp the battery pack tightly, the multiple loading assemblies 3 can apply different vibrations to the battery pack, so that the different areas of the battery pack vibrate differently, and further the battery pack to be tested is the same as the actual situation (the different areas of the battery pack vibrate differently), so that the battery pack to be tested by the testing device 100 of the present application is durable and more real and practical in vibration.
It will be appreciated that the actual vibration of each tyre is different after each tyre has contacted the ground during actual travel of the wheel, and that the vibration transmitted from the tyre to the battery pack is different, i.e. the vibration is different in the various regions of the battery pack. If uniform vibration is applied to the battery pack, this is not in accordance with reality, resulting in deviation of the measured result from the actual situation.
Optionally, the loading assembly 3 comprises: the loading part 31 and the telescopic rod 32, the loading part 31 is suitable for loading the road spectrum, the loading part 31 is detachably connected with the bracket 2, one end of the telescopic rod 32 is connected with the loading part 31, and the other end of the telescopic rod 32 is movably connected with the first clamping part 41 or the second clamping part 42, so that the first clamping part 41 or the second clamping part 42 vibrates according to the road spectrum.
Thus, after the loading assembly 3 applies vibration according to the road spectrum, the telescopic rod 32 can transmit the vibration to the first clamping portion 41 or the second clamping portion 42 connected thereto, and then the first clamping portion 41 and the second clamping portion 42 are vibrated, so that the battery pack connected between the first clamping portion 41 and the second clamping portion 42 is vibrated.
Further, the telescopic rod 32 can be stretched and retracted in a reciprocating manner in the vertical direction to adjust the horizontal height of the battery pack, so that the telescopic rod 32 can be conveniently connected with the first clamping part 41 and the second clamping part 42 which are different in height through the stretching and retracting movement of the telescopic rod 32 in the vertical direction, and the clamping efficiency of clamping the battery pack is improved. After the telescopic rod 32 is connected with the first clamping part 41 or the second clamping part 42, the telescopic rod 32 can stretch and move, so that the telescopic rod 32 can drive the battery pack to move, the battery pack can be located at different levels, and the vibration durability test of the battery packs with different heights can be simulated.
Optionally, a first connector 321 is formed at an end of the telescopic rod 32 away from the loading portion 31, a second connector 413 is formed at the first clamping portion 41, a third connector is formed at the second clamping portion 42, after the first connector 321 is matched with the second connector 413, the first clamping portion 41 is suitable for driving the battery pack to vibrate, and after the first connector 321 is matched with the third connector, the second clamping portion 42 is suitable for driving the battery pack to vibrate.
In the example shown in fig. 2, the first connector 321 may be a convex spherical connector, and the second connector 413 and the third connector are concave spherical connectors, so that after the first connector 321 is connected to the second connector 413 or the third connector, the first clamping portion 41 or the second clamping portion 42 can rotate and move relative to the telescopic rod 32, so that the first clamping portion 41 and the second clamping portion 42 can vibrate according to the road spectrum, the loss of vibration in the transmission process is reduced, and the vibration loss transmitted to the battery pack is small, so that the battery pack can vibrate according to the road spectrum.
In some embodiments of the present invention, the road spectrum loaded by the loading unit 31 includes: the road spectrum may include, but is not limited to, working conditions such as belgium roads, washboard roads, cobblestone roads, square pits, torque roads, etc., or equivalent test field working conditions. And the road spectrum passing through various roads is applied to the battery pack, so that the vibration test of the battery pack is more real. The road spectrum loaded by the loading section 31 is shown in fig. 7.
In some embodiments of the present invention, the battery pack vibration endurance testing apparatus 100 further comprises: the spray assembly 6, the spray assembly 6 includes a plurality of spray heads 61, the plurality of spray heads 61 are evenly spaced around the circumference of the battery pack, the spray heads 61 are adapted to spray liquid toward the battery pack to accelerate the aging of the battery pack, so that an environment for aging of the battery pack can be created, thereby enabling the testing device 100 to test the vibration resistance capability of the battery pack under a corrosion condition.
For example, as shown in fig. 1 and 3, after the spraying heads 61 are uniformly spaced around the circumference of the battery pack, the spraying heads 61 can spray liquid toward the battery pack, so that the battery pack can be uniformly sprayed, the aging speed of the battery pack can be increased, and the testing device 100 of the present application can also test the aging resistance of the battery pack.
Further, the sprinkler head 61 is spaced apart from the first clamping portion 41, the second clamping portion 42 and the battery pack by a distance such that the battery pack does not interfere with the sprinkler head 61 when the battery pack is vibrated in the test.
In one example, the liquid can be a 1% sodium chloride solution, adjusted to a pH value of 5.0 +/-0.1 with 0.5mol/L sulfuric acid, adjusted to a required acid corrosion spray according to GB/T10125, or other liquid with a corrosion function, and the liquid is not limited in the description.
In another example, as shown in fig. 6, an experimental period is 7 days, and in the first 4 days, a period is obtained every 24 hours, and then in the first 4 days, 4 periods are divided, and after each period is finished, the next period starts, that is, there is no time interval between two adjacent periods. Each period is divided into a spraying period and a damp and hot storage period, specifically, the spraying operation is continuously performed by the spraying head 61 in the first 2 hours of each period, after the spraying operation is completed, the spraying operation is stopped by the spraying head 61, then the damp and hot storage is performed for 22 hours on the battery pack, after the damp and hot storage is completed, the spraying control period of the period is completed, and then the next period, namely, the spraying operation is performed on the battery pack by the spraying head 61. And after 4 periods, applying a standard environment to the battery pack to store the battery pack in the standard environment for 3 days, thereby testing the aging degree of the battery pack.
Other configurations and operations of the battery pack vibration endurance testing apparatus 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery pack vibration endurance testing apparatus, comprising:
a base plate;
the bracket is detachably arranged on the bottom plate;
one end of the loading assembly is detachably arranged on the bracket;
the centre gripping subassembly, the centre gripping subassembly with the other end movably of loading subassembly is connected, the centre gripping subassembly includes first clamping part and second clamping part, first clamping part with the both ends of second clamping part centre gripping battery package respectively, just first clamping part with second clamping part mutual independence, the loading subassembly is suitable for right according to loading road spectrum the battery package is applyed the vibration, thereby the test battery package vibration durability.
2. The battery pack vibration endurance testing apparatus of claim 1, wherein the first clamping portion includes a first connection location, the second clamping portion includes a second connection location, a plurality of connection holes are respectively disposed on the first connection location and the second connection location, after a plurality of connection members respectively pass through the plurality of connection holes, two ends of the battery pack are respectively connected with the first connection location and the second connection location, and the plurality of connection members and the plurality of connection holes are disposed in one-to-one correspondence.
3. The battery pack vibration endurance testing apparatus of claim 1, further comprising: locking Assembly, locking Assembly movably locates first clamping part with between the second clamping part, locking Assembly includes a plurality of locking boards, and is a plurality of the locking board is followed first clamping part or the direction that the second clamping part extends is spaced apart to be set up, the both ends of locking board respectively with first clamping part with the second clamping part butt be equipped with a plurality of through-holes on the locking board, a plurality of connecting pieces pass a plurality ofly the through-hole, so that the locking board locks the battery package.
4. The battery pack vibration endurance testing apparatus of claim 3, wherein the first clamping portion includes a first sliding groove, the second clamping portion includes a second sliding groove, and the first sliding groove and the second sliding groove extend in the same direction,
the two ends of the locking plate are respectively abutted with the first sliding groove and the second sliding groove, so that the through hole is opposite to the first sliding groove or the second sliding groove, and the locking plate can slide along the extending direction of the first sliding groove or the second sliding groove.
5. The battery pack vibration endurance testing apparatus of claim 3, wherein the first clamping portion is movable toward or away from the second clamping portion, and the locking plate is formed as a telescopic plate such that both ends of the locking plate can abut against the first and second clamping portions, respectively.
6. The battery pack vibration endurance testing apparatus according to claim 1, wherein the testing apparatus includes a plurality of loading assemblies, and the plurality of loading assemblies operate independently of each other, the plurality of loading assemblies are respectively connected to the first clamping portion and the second clamping portion, and two adjacent loading assemblies are disposed at a distance.
7. The battery pack vibration endurance testing apparatus of claim 6, wherein the loading assembly comprises: the loading part is suitable for loading road spectrums, the loading part is detachably connected with the support, one end of the telescopic rod is connected with the loading part, the other end of the telescopic rod is movably connected with the first clamping part or the second clamping part, and therefore the first clamping part or the second clamping part vibrates according to the road spectrums.
8. The battery pack vibration endurance testing apparatus of claim 7, wherein the telescoping rod is capable of performing reciprocating telescoping movement in an up-down direction to adjust a level of the battery pack,
the telescopic link is kept away from one of loading portion is served and is formed first connector form the second connector on the first clamping part form the third connector on the second clamping part, first connector with the cooperation back of second connector, first clamping part is suitable for the drive the battery package vibration, first connector with the cooperation back of third connector, the second clamping part is suitable for the drive the battery package vibration.
9. The battery pack vibration endurance testing apparatus of claim 1, wherein the road spectrum loaded by the loading portion comprises: belgium, washboard, cobblestone, square pit, and torque path.
10. The battery pack vibration endurance testing apparatus of claim 1, further comprising: a spray assembly including a plurality of spray heads evenly spaced around a circumference of the battery pack, the spray heads adapted to spray liquid toward the battery pack to accelerate degradation of the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005151.8A CN114252225A (en) | 2020-09-22 | 2020-09-22 | Battery pack vibration durability testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005151.8A CN114252225A (en) | 2020-09-22 | 2020-09-22 | Battery pack vibration durability testing device |
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| Publication Number | Publication Date |
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| CN114252225A true CN114252225A (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011005151.8A Pending CN114252225A (en) | 2020-09-22 | 2020-09-22 | Battery pack vibration durability testing device |
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