Battery weight impact test device

Abstract

The utility model discloses a battery weight impact test device, which comprises a test box, the test box is provided with a box body, a battery placing seat is arranged at the bottom of an inner cavity of the box body, a battery fixing structure is arranged on the battery placing seat, and the battery fixing structure comprises two battery fixing clamping plates which are oppositely arranged. A heavy object taking and placing mechanism is arranged at the top of an inner cavity of the box body and comprises a heavy object clamping unit, and the heavy object clamping unit is arranged on a sliding rail frame and is configured to be capable of conducting three-axis movement in the X-axis direction, the Y-axis direction and the Z-axis direction. According to the battery weight impact test device provided by the utility model, when an impact test is realized, the safety performance of a battery can be observed when the battery is impacted by different weights at different heights; and the battery can be effectively fixed, and displacement of the battery when the battery is impacted for the first time is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery impact test device technical field, especially to a kind of battery heavy impact test device. BACKGROUND

[0002] Lithium iron phosphate battery as a kind of energy storage device, in new energy automobile, energy storage direction is widely applied.In use, battery safety problem also needs to be verified by experiment.Lithium iron phosphate battery needs to be punctured, high-low temperature, heavy impact and a series of tests.

[0003] When battery impact test is carried out under prior art, battery is placed inside heavy impact test box, and different mass heavy is impacted on battery from different height by free fall, and test result after impact is observed to evaluate the safety performance of battery.In test, battery needs to be fixed since battery needs to accept impact test of different height, if not fixed, then deviation will occur when impacting for the first time, but the inside of existing heavy impact test box lacks structure for fixing battery;In addition, existing test device cannot flexibly grab heavy, and cannot flexibly realize impact of heavy of different height, different position and different mass. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the insufficient and defects of prior art, and provides a kind of battery heavy impact test device.The purpose is to realize the observation of the safety performance of battery when impacting test, and effectively fix battery to avoid displacement of battery when impacting for the first time.

[0005] The utility model is realized as follows:

[0006] A kind of battery heavy impact test device, including test box, it has a box body, the bottom of the inner chamber of the box body is provided with battery placing seat, battery fixing structure is provided on the battery placing seat, the battery fixing structure includes two oppositely arranged battery fixing clamping plates, the top of the inner chamber of the box body is provided with heavy object taking and placing mechanism, the heavy object taking and placing mechanism includes heavy object clamping unit, the heavy object clamping unit is arranged on slide rail frame, and is configured to be able to move in X axis, Y axis and Z axis direction three-axis motion.

[0007] Preferably, recess is provided in the length direction of the top of the battery placing seat, screw mechanism is provided in the inside of the recess, two battery fixing clamping plates are connected with the screw mechanism, and synchronous movement is realized by the screw mechanism driving to realize mutual approaching or moving away.

[0008] Preferably, the screw mechanism comprises a threaded rod arranged in the groove and rotatably connected to both ends of the groove, two threaded blocks arranged on the threaded rod and threadedly connected to the threaded rod and slidably connected to the groove, the threaded rod is externally provided with two groups of opposite threads; each of the two threaded blocks is connected to one of the battery fixing clamping plates; one end of the threaded rod penetrates through the side wall of the box body and is fixed with a handle.

[0009] Preferably, the battery fixing clamping plate comprises a hollow plate in the shape of a rectangle, and a limiting plate is arranged in the hollow plate to fill the hollow area.

[0010] Preferably, the top of the placement seat is provided with a silica gel pad.

[0011] Preferably, the slide rail frame comprises two first electromagnetic slide rails arranged along the Y-axis direction and one second electromagnetic slide rail arranged along the X-axis direction, the outer sides of the two first electromagnetic slide rails are provided with first electromagnetic threaded blocks, the top of each of the two first electromagnetic threaded blocks is fixed with the second electromagnetic slide rail along the X-axis direction, the outer side of the second electromagnetic slide rail is provided with a second electromagnetic threaded block; the weight clamping unit is fixed with the second electromagnetic threaded block through a support block.

[0012] Preferably, the side wall of the inner cavity of the box body is fixed with a support rod, one end of the support rod is fixedly connected to the bottom of the first electromagnetic slide rail to provide support force for the first electromagnetic slide rail.

[0013] Preferably, the front side of the second electromagnetic threaded block is fixed with a support block, the top of the support block is fixedly installed with a first air cylinder, the bottom of the support block is arranged with the weight clamping unit, the output end of the first air cylinder penetrates through the support block and is connected to the top of the weight clamping unit.

[0014] Preferably, the weight clamping unit comprises a support frame, one support arm is fixedly arranged on each side of the support frame, a second air cylinder is fixedly arranged on the top of the support frame, the top of the second air cylinder is connected to the output end of the first air cylinder, the output end of the second air cylinder penetrates through the support frame downward and is connected to a cross bar, one clamping rod is rotatably connected to the inner side of each of the support arms, one end of each of the two connecting rods is rotatably connected to the bottom of the cross bar, the other end of each of the two connecting rods is rotatably connected to one of the clamping rods, and one clamping plate is fixedly arranged on each of the opposite sides of the two clamping plates near the bottom end.

[0015] Preferably, the front of the box body is provided with a box door, and the side edge of the box body is provided with a control panel.

[0016] The utility model battery heavy impact test device, through heavy clamping unit carries on three -axis motion, can make heavy to come to the positive overhead of battery, put heavy and realize second impact, realize the multiple impact test of battery, and then analyze the situation of battery under the impact of different height heavy.

[0017] The utility model discloses a battery placing seat is arranged at the bottom of the test box cavity, and a battery fixing structure is arranged on the battery placing seat, so that the battery can be effectively fixed, and displacement of the battery during the first impact can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the schematic diagram of battery heavy impact test device of the utility model.

[0019] Fig. 2 It is the schematic diagram of heavy taking and placing mechanism of battery heavy impact test device of the utility model.

[0020] Fig. 3 It is the structure schematic diagram of heavy clamping unit of battery heavy impact test device of the utility model.

[0021] Fig. 4 It is the schematic diagram of battery fixing structure of the top of placing seat of battery heavy impact test device of the utility model.

[0022] In the drawing,

[0023] 1, box body, 2, placing seat, 3, recess, 4, threaded block, 5, threaded rod, 6, handle, 7, clamping plate, 8, limiting plate, 9, no. 1 electromagnetic slide rail, 10, no. 1 electromagnetic threaded block, 11, no. 2 electromagnetic slide rail, 12, no. 2 electromagnetic threaded block, 13, support block, 14, no. 1 air cylinder, 15, support frame, 16, support arm, 17, no. 2 air cylinder, 18, cross bar, 19, clamping rod, 20, connecting rod, 21, clamping plate, 22, support rod, 23, silica gel pad. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] Referring to Figs. 1 to 4As shown, in the example embodiment of the present application, the battery heavy object impact test device can be used for lithium iron phosphate battery heavy object impact test, including a test box, which has a box body 1, the bottom of the inner cavity of the box body 1 is provided with a placing seat 2, the placing seat 2 is provided with a fixing structure, including two oppositely arranged clamping plates 7, the top of the inner cavity of the box body is provided with a heavy object taking and placing mechanism, the heavy object taking and placing mechanism includes a heavy object clamping unit, the heavy object clamping unit is arranged on a sliding rail frame and is configured to move in X, Y and Z axis directions.

[0026] In some embodiments, the fixing structure includes a groove 3 provided at the top of the placing seat 2, two threaded blocks 4 are slidably connected inside the groove 3, and a threaded rod 5 is rotatably connected inside the groove 3, the outer part of the threaded rod 5 is provided with two sets of opposite threads, one end of the threaded rod 5 penetrates through the side wall of the box body 1 and is fixed with a handle 6, and the top of the threaded block 4 is fixed with a clamping plate 7.

[0027] In some embodiments, the clamping plate 7 is a hollow clamping plate 7, the inside of the clamping plate 7 is connected with a limiting plate 8, the limiting plate 8 can slide inside the clamping plate, such as being pulled out upward or retracted, when the battery is high, the limiting plate 8 can be pulled out upward to achieve effective limiting of the battery in the height direction, in some embodiments, the top of the placing seat 2 is provided with a silica gel pad 23. When the heavy object falls, the silica gel pad 23 at the top of the placing seat 2 can play a buffering role to protect the placing seat.

[0028] Because the outer part of the threaded rod is provided with two sets of opposite threads, when the battery needs to be clamped or released, the threaded rod can be rotated by the handle to achieve the synchronous movement of the clamping plates 7, and the clamping plates 7 move closer to or away from each other. For example, when in use, the threaded rod 5 is rotated by the handle 6, because the outer part of the threaded rod 5 is provided with two sets of opposite threads, when the threaded rod 5 is rotated, the two threaded blocks 4 will slide reversely inside the groove 3, and then drive the two clamping plates 7 to move reversely to clamp the battery, which is conducive to preventing the battery from deviating when the heavy object impacts the battery for the first time, so that the next impact cannot be performed, or causing error in the impact test.

[0029] In some embodiments, the front of the box body 1 is provided with an openable box door, and the side edge of the box body 1 is installed with a control panel, which is used to control the action of the heavy object clamping unit inside the box body.

[0030] In some embodiments, the sliding frame includes two first electromagnetic sliding rails 9 fixedly installed on the inner cavity wall of the box body 1 and arranged in the Y axis direction, the outer part of the first electromagnetic sliding rail 9 is provided with a first electromagnetic threaded block 10, the top of the first electromagnetic threaded block 10 is fixed with a second electromagnetic sliding rail 11 in the X axis direction, and the outer part of the second electromagnetic sliding rail 11 is provided with a second electromagnetic threaded block 12.

[0031] In some embodiments, a support rod 22 is fixed to the inner wall of the box 1, such as being welded to one end of the support rod 22, and one end of the support rod 22 is fixedly connected to the bottom of the first electromagnetic slide rail 9 to provide support for the first electromagnetic slide rail 9.

[0032] In some embodiments, a support block 13 is fixed to the front side of the second electromagnetic threaded block 12, a first air cylinder 14 is fixedly installed at the top of the support block 13, and a weight clamping unit is fixed to the bottom of the first air cylinder 14, and the weight clamping unit is driven to move in the Z-axis direction by the first air cylinder 14.

[0033] In the embodiments of the application, the movement of the clamping unit in the Y-axis direction is realized by moving the first electromagnetic threaded block 10 outside the first electromagnetic slide rail 9, the movement of the clamping unit in the X-axis direction is realized by moving the second electromagnetic threaded block 12 on the second electromagnetic slide rail 11, and then the lifting of the clamping unit in the Z-axis direction is realized by the extension of the first air cylinder 14, so as to realize the falling impact of the weight at different heights, analyze the situation of the battery under the impact of the weight at different heights, and realize the taking and placing of the weight by the three-axis movement of the weight clamping unit, so as to realize multiple impact experiments.

[0034] In some embodiments, the weight clamping unit comprises a support frame 15, support arms 16 are arranged on both sides of the support frame, a second air cylinder 17 is fixedly installed at the top of the support frame 15, an output end of the second air cylinder 17 penetrates through the support frame 15 and is fixedly provided with a cross bar 18, clamping rods 19 are rotatably connected to the inner sides of the support arms 16, a connecting rod 20 is rotatably connected to the bottom of the cross bar 18, one end of the connecting rod 20 is rotatably connected to the clamping rod 19, and clamping plates 21 are fixed to the bottom of the clamping rod 19, the clamping rod 19 of the clamping unit is moved to both sides of the battery by three-axis movement, then the output end of the second air cylinder 17 is retracted to drive the cross bar 18 to rise, when the cross bar 18 rises, the two clamping rods 19 are reversely rotated by the connecting rod 20 and the weight is clamped by the clamping plates 21, the weight is above the battery after clamping and is released to realize the second impact under the action of three-axis movement, and the multiple impact experiments on the battery are realized by this method.

[0035] The working principle of the device of the application is as follows:

[0036] Open the box door, the battery (such as square lithium iron phosphate) is placed to the top of the placement seat 2 and is located between the two clamping plates 7, the threaded rod 5 is rotated through the handle 6, because the outer part of the threaded rod 5 is provided with two groups of opposite threads, when the threaded rod 5 is rotated, the two threaded blocks 4 slide reversely in the recess 3, then drive the two clamping plates 7 to reversely move and clamp the battery, which is beneficial to prevent the battery from being deviated when the heavy object impacts the battery for the first time and cannot be impacted for the next time or causes error in the impact test;

[0037] The heavy object in the initial state is located between the two clamping plates 21, then the two clamping rods 19 reversely move to place the heavy object and impact, then the condition of the battery under the impact of the heavy object is observed; after the heavy object is placed, the heavy object is clamped again for the second impact, at this time, the first electromagnetic threaded block 10 moves on the outer part of the first electromagnetic slide rail 9 to realize the movement of the clamping unit on the Y axis, the second electromagnetic threaded block 12 moves on the second electromagnetic slide rail 11 to realize the movement of the clamping unit on the X axis, then the clamping unit realizes the lifting on the Z axis through the extension of the first air cylinder 14, the lifting on the Z axis realizes the falling impact of the heavy object at different heights, and then the condition of the battery under the impact of the heavy object at different heights is analyzed.

[0038] Because the falling heavy object is not in a certain fixed position, through the three-axis movement of the heavy object clamping unit, the heavy object clamping unit can clamp the heavy object, through the three-axis movement, the clamping rod 19 of the heavy object clamping unit moves to the two sides of the battery, then the output end of the second air cylinder 17 is retracted to drive the horizontal rod 18 to rise, when the horizontal rod 18 rises, the two clamping rods 19 are reversely rotated through the connecting rod 20 and the clamping plate 21 clamps the heavy object, after clamping, the heavy object comes to the top of the battery under the action of the three-axis movement, and the heavy object is released to realize the second impact, so as to realize the multiple impact test of the battery.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model;

[0040] Therefore, no matter from which point, the embodiment should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0041] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A battery weight impact test device comprising a test case having a case body, characterized by, The bottom of the box cavity is provided with a battery placing seat, the battery placing seat is provided with a battery fixing structure, the battery fixing structure comprises two oppositely arranged battery fixing clamping plates, the top of the box cavity is provided with a weight taking and placing mechanism, the weight taking and placing mechanism comprises a weight clamping unit, the weight clamping unit is arranged on a slide rail frame and is configured to be capable of moving in three-axis directions of X-axis, Y-axis and Z-axis.

2. The battery weight impact test device according to claim 1, wherein The top of the battery placing seat is provided with a groove along the length direction, the inside of the groove is provided with a screw rod mechanism, the two battery fixing clamping plates are connected with the screw rod mechanism, and synchronous movement driven by the screw rod mechanism is achieved to realize mutual approaching or moving away.

3. The battery weight impact test device according to claim 2, wherein The screw rod mechanism comprises a threaded rod rotatably connected with both ends of the groove, two threaded blocks arranged on the threaded rod, the threaded blocks are threadedly connected with the threaded rod and are slidably connected with the groove, and two groups of opposite threads are arranged on the outside of the threaded rod; the two threaded blocks are respectively connected with one of the battery fixing clamping plates; one end of the threaded rod penetrates through the side wall of the box and is fixedly provided with a handle.

4. The battery weight impact test device according to claim 1, wherein The battery fixing clamping plate comprises a rectangular hollow plate, a limiting plate is arranged in the hollow plate, and the hollow area is filled.

5. The battery weight impact test device according to claim 1, wherein The top of the placing seat is provided with a silica gel pad.

6. The battery weight impact test device according to claim 1, wherein The slide rail frame comprises two No. 1 electromagnetic slide rails arranged along the Y-axis direction and one No. 2 electromagnetic slide rail arranged along the X-axis direction, the outside of the two No. 1 electromagnetic slide rails is provided with a No. 1 electromagnetic threaded block, the top of the two No. 1 electromagnetic threaded blocks is fixedly provided with the No. 2 electromagnetic slide rail along the X-axis direction, the outside of the No. 2 electromagnetic slide rail is provided with a No. 2 electromagnetic threaded block; the weight clamping unit is fixed with the No. 2 electromagnetic threaded block through a support block.

7. The battery weight impact test device according to claim 6, wherein The side wall of the box cavity is fixedly provided with a support rod, one end of the support rod is fixedly connected with the bottom of the No. 1 electromagnetic slide rail to provide support force for the No. 1 electromagnetic slide rail.

8. The battery weight impact test device according to claim 6, wherein The front side of the No. 2 electromagnetic threaded block is fixedly provided with a support block, a No. 1 air cylinder is fixedly arranged on the top of the support block, and the bottom of the support block is arranged with the weight clamping unit; the output end of the No. 1 air cylinder penetrates through the support block and is connected with the top of the weight clamping unit.

9. The battery weight impact test device according to claim 8, wherein The weight clamping unit comprises a support frame, one support arm is fixedly arranged on each side of the support frame, a No. 2 air cylinder is fixedly arranged on the top of the support frame, the top of the No. 2 air cylinder is connected with the output end of the No. 1 air cylinder, the output end of the No. 2 air cylinder penetrates through the support frame downward and is connected with a cross rod, one clamping rod is rotatably connected with the inner side of each support arm, one end of a connecting rod is rotatably connected with the bottom of each end of the cross rod, the other end of each connecting rod is rotatably connected with a clamping rod, and one clamping plate is fixedly arranged on the position close to the bottom end on the opposite side of each clamping plate.

10. The battery weight impact test device according to claim 1, wherein The front of the box is provided with a box door, and the side of the box is provided with a control panel.

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