CN223711272U - Lithium battery cell test fixture that presses - Google Patents

Abstract

The utility model discloses a lithium battery cell pressing test fixture, which comprises a test base, wherein a test vertical plate and an upper bracket are arranged on the upper side of the test base, a test table is arranged on the upper side of the test base through rotation of a rotating shaft, one end of the rotating shaft is connected with a first motor through transmission of a gear set, a lower protective cover and an upper protective cover are arranged on the inner wall of the upper bracket through a screw rod, a test pressing plate is arranged on the inner wall of the lower protective cover through a hydraulic cylinder, and a pressure sensor is arranged in the middle part in the test pressing plate.

Description

Lithium battery cell test fixture that presses

Technical Field

The utility model relates to the technical field of lithium battery testing equipment, in particular to a lithium battery cell pressing testing tool.

Background

The power lithium battery is a rechargeable battery using lithium ions as a positive electrode material, is a high-performance and high-energy-density storage battery, is widely applied to the fields of electric automobiles, unmanned aerial vehicles, electric tools and the like, which need a large amount of energy output, and meanwhile, along with the increasing use of the power lithium ion battery on the automobiles, the technology is more mature, the production and processing requirements on the battery are higher, and a test tool is generally needed to be used for fixedly mounting a lithium battery cell in a pressing test device for pressing pressure test.

The utility model relates to a pressing test fixture for a power lithium battery cell, which is applied for 202421545707.6 in the prior art, and comprises clamping assemblies, wherein the two groups of clamping assemblies are respectively positioned at two sides of a positioning groove, each clamping assembly comprises a push plate and a movable plate, the push plate and the movable plate are movably connected through springs, each movable plate is movably provided with a limiting assembly, each limiting assembly comprises a sliding block, a fixed pipe and a movable rod, each sliding block is movably arranged at the top of each movable plate, each fixed pipe is fixedly arranged on each sliding block, each movable rod is movably arranged in each fixed pipe, and each movable rod end is fixedly provided with a clamping block.

Disclosure of utility model

The utility model aims to provide a lithium battery cell pressing test fixture, which is used for solving the problems that the compression deformation degree of a lithium battery cell is inconvenient to detect and the detection protection effect is poor in the prior art.

The lithium battery cell pressing test fixture comprises a test base, wherein a test vertical plate and an upper support are arranged on the upper side of the test base, a test table is further arranged on the upper side of the test base in a rotating mode through a rotating shaft, one end of the rotating shaft is connected with a first motor in a transmission mode through a gear set, a lower protective cover is arranged on the inner wall of the upper support through a screw rod, an upper protective cover is further arranged on the upper side of the lower protective cover, a test pressing plate is arranged on the inner wall of the lower protective cover through a hydraulic cylinder, and a pressure sensor is arranged in the middle of the test pressing plate.

Further, the gear set comprises a driven gear arranged at the lower end of the rotating shaft, a driving gear is arranged at one end of the first motor, and the driving gear is meshed with the driven gear.

Further, the first motor is a stepping motor and is fixedly arranged at the inner bottom of the test base.

Further, the lead screw is including rotatory the setting lead screw between test base and upper bracket, and lower protection casing one end middle part and lead screw threaded connection, lead screw one end transmission is connected with the second motor, and the upper bracket outside is equipped with the PLC switch board, and still is equipped with the guide bar that sets up with lower protection casing slip between test base and the upper bracket.

Further, the upper protective cover is an inverted U-shaped support, and a camera is arranged at the inner top of the upper protective cover.

Further, the inner wall of the lower protective cover is provided with a guide sliding rail, and two sides of the test pressing plate are provided with limiting sliding grooves which are arranged in a sliding manner with the guide sliding rail.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the lithium battery cell to be tested is placed on the test bench, the lower protective cover and the upper protective cover are driven by the lead screw to move downwards and cover the outside of the lithium battery cell, and then the test pressing plate is driven by the hydraulic cylinder to move transversely, so that the lithium battery cell can be transversely clamped and fixed between the test vertical plate and the test pressing plate to carry out pressure test treatment, the pressure sensor is used for detecting the pressure in real time, and the camera is used for observing the deformation in order to detect the compression resistance of the lithium battery cell.

2. According to the lithium battery cell horizontal detection angle adjusting device, the test table is arranged on the upper side of the test base in a rotating mode through the rotating shaft, one end of the rotating shaft is connected with the first motor through the gear set in a transmission mode, the gear set comprises the driven gear arranged at the lower end of the rotating shaft, the driving gear is arranged at one end of the first motor, and the driving gear is meshed with the driven gear, so that the rotating shaft and the test table are driven to rotate horizontally through the first motor and the gear set to adjust the lithium battery cell horizontal detection angle.

3. According to the utility model, the lower protective cover is arranged on the inner wall of the upper bracket through the screw rod, the upper protective cover is further arranged on the upper side of the lower protective cover, the outer part of the lithium battery cell can be protected by the upper protective cover and the lower protective cover, the shell is prevented from being broken and splashed during the detection of the lithium battery cell, the safety of detection and use is improved, and the protective cover is driven to be lifted and adjusted through the screw rod, so that the test bench can be conveniently subjected to loading and unloading and cleaning treatment.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a top-free shield seat according to the present utility model;

FIG. 3 is a schematic view showing the structure of the shield of the present utility model;

fig. 4 is a schematic structural view of the upper shield of the present utility model.

The device comprises a test base, an upper bracket, a test vertical plate, a lower protective cover, a 5 upper protective cover, a 6, a screw rod, a 7, a second motor, a 8, a guide rod, a 9, a hydraulic cylinder, a 10, a test pressing plate, a 11, a pressure sensor, a 12, a test bench, a 13, a guide sliding rail, a 14, a limiting sliding groove, a 15, a camera, a 16, a driven gear, a 17, a rotating shaft, a 18, a driving gear, a 19, a first motor, a 20 and a PLC control cabinet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in the embodiment of the utility model, a lithium battery cell pressurizing test fixture comprises a test base 1, a test vertical plate 3 and an upper support 2 are arranged on the upper side of the test base 1, a test table 12 is further arranged on the upper side of the test base 1 in a rotating manner through a rotating shaft 17, a lower protection cover 4 is arranged on the inner wall of the upper support 2 through a lead screw, an upper protection cover 5 is further arranged on the upper side of the lower protection cover 4, the outside of the lithium battery cell can be protected by the upper protection cover 4 and the lower protection cover 5, shell rupture splashing during detection of the lithium battery cell is prevented, the safety of detection is improved, the upper protection cover 5 is an inverted U-shaped support, a test pressing plate 10 is arranged on the inner wall of the lower protection cover 4 of the upper protection cover 5 through a hydraulic cylinder 9, the test pressing plate 10 is driven to transversely move through the hydraulic cylinder 9, so that the lithium battery cell can be transversely clamped and fixed between the test vertical plate 3 and the test pressing plate 10 for pressure test treatment, a pressure sensor 11 is arranged in the middle part in the test pressing plate 10, and the pressure sensor 11 is used for detecting the pressure in real time.

As shown in fig. 1 and 3, in order to be able to adjust the horizontal detection angle of the lithium battery cell, a first motor 19 is further connected to one end of the rotating shaft 17 through a gear set, the gear set includes a driven gear 16 disposed at the lower end of the rotating shaft 17, a driving gear 18 is disposed at one end of the first motor 19, the driving gear 18 is engaged with the driven gear 16, the first motor 19 is a stepping motor, and the first motor 19 is fixedly mounted at the bottom in the test base 1, so that the rotating shaft 17 and the test bench 12 are driven by the first motor 19 and the gear set to rotate horizontally and adjust, and thus the horizontal detection angle of the lithium battery cell can be adjusted.

As shown in fig. 1 and 2, in order to be convenient for adjust the protection casing lift, still including rotatory lead screw 6 that sets up between test base 1 and upper bracket 2 with the lead screw, and lower protection casing 4 one end middle part and lead screw 6 threaded connection, lead screw 6 one end transmission is connected with second motor 7, the upper bracket 2 outside is equipped with the PLC switch board 20, and still be equipped with between test base 1 and the upper bracket 2 with lower protection casing 4 slip setting's guide bar 8, utilize last protection casing and lower protection casing can cover the protection of protecting outside the lithium battery cell, the shell breaks and splashes when preventing the lithium battery cell detects, improve the security of detecting the use, make can drive the protection casing lift through the lead screw and adjust, thereby be convenient for go up unloading or cleaning treatment to test bench 12 upper portion.

As shown in fig. 1 and fig. 2, in order to improve the accuracy of the lateral movement pressure test of the test pressing plate 10, a guiding sliding rail 13 is further disposed on the inner wall of the lower protective cover 4, and limiting sliding grooves 14 slidably disposed on the guiding sliding rail 13 are disposed on two sides of the test pressing plate 10, so as to be used for sliding and guiding the lateral movement adjustment of the test pressing plate 10, thereby being beneficial to improving the accuracy of the lateral movement pressure test of the test pressing plate 10.

When the lithium battery cell to be tested is placed on the test bench 12, the lower protective cover 4 and the upper protective cover 5 are driven by the lead screw to move downwards to cover the outside of the lithium battery cell, and then the test pressing plate 10 is driven by the hydraulic cylinder 9 to move transversely, so that the lithium battery cell can be transversely clamped and fixed between the test vertical plate 3 and the test pressing plate 10 for pressure test treatment, the pressure sensor 11 is used for detecting the pressure in real time, and the deformation of the battery is observed through the camera 15, so that the compression resistance degree of the lithium battery cell is detected.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A lithium battery cell pressure testing fixture, comprising a test base (1), characterized in that: a test stand (3) and an upper bracket (2) are provided on the upper side of the test base (1), and a test platform (12) is rotatably provided on the upper side of the test base (1) via a rotating shaft (17), one end of the rotating shaft (17) is connected to a first motor (19) via a gear set, a lower protective cover (4) is provided on the inner wall of the upper bracket (2) via a lead screw, an upper protective cover (5) is provided on the upper side of the lower protective cover (4), a test pressure plate (10) is provided on the inner wall of the lower protective cover (4) via a hydraulic cylinder (9), and a pressure sensor (11) is provided in the middle of the test pressure plate (10). 2. The lithium battery cell pressure testing fixture according to claim 1, characterized in that: the gear set includes a driven gear (16) disposed at the lower end of the rotating shaft (17), and a driving gear (18) is provided at one end of the first motor (19), and the driving gear (18) is meshed with the driven gear (16). 3. The lithium battery cell pressure testing fixture according to claim 2, characterized in that: the first motor (19) is a stepper motor, and the first motor (19) is fixedly installed at the bottom of the test base (1). 4. The lithium battery cell pressure testing fixture according to claim 1, characterized in that: the lead screw includes a lead screw (6) rotatably disposed between the test base (1) and the upper bracket (2), and the middle part of one end of the lower protective cover (4) is threadedly connected to the lead screw (6), and one end of the lead screw (6) is drivenly connected to a second motor (7). 5. The lithium battery cell pressure testing fixture according to claim 1, characterized in that: the upper protective cover (5) is an inverted U-shaped support, and a camera (15) is provided at the top inside the upper protective cover (5). 6. The lithium battery cell pressure testing fixture according to claim 1, characterized in that: the inner wall of the lower protective cover (4) is provided with a guide slide rail (13), and the test pressure plate (10) is provided with limiting slide grooves (14) on both sides that slide with the guide slide rail (13).