Lithium battery cell pressing test tool

Abstract

The utility model discloses a lithium battery cell pressing test tool which comprises a test base, the upper side of the test base is provided with a test vertical plate and an upper support, the upper side of the test base is further rotatably provided with a test board through a rotating shaft, one end of the rotating shaft is in transmission connection with a first motor through a gear set, and the inner wall of the upper support is provided with a lower protective cover and an upper protective cover through lead screws. A lithium battery cell to be tested is placed on the test board, the lower protective cover and the upper protective cover are driven by the lead screw to move downwards to cover the lithium battery cell, the test pressing plate is arranged on the inner wall of the lower protective cover through a hydraulic cylinder, and the pressure sensor is arranged in the middle of the test pressing plate. And then the hydraulic cylinder drives the test pressing plate to transversely move, so that the lithium battery cell can be transversely clamped and fixed between the test vertical plate and the test pressing plate for pressure test processing, and the pressure is observed in real time through the pressure sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery test equipment technical field, specifically a kind of lithium battery cell press test tool. BACKGROUND

[0002] Power lithium battery is a kind of lithium ion as positive material charging battery, it is a kind of high performance, high energy density storage battery, is widely used in electric vehicle, unmanned aerial vehicle, electric tool and the field needing large amount of energy output, simultaneously with the use of power lithium ion battery in car more and more, technology is also more mature, the production and processing requirement of battery is also higher, usually need to use test tool to fix installation lithium battery cell in press test equipment and carry out press pressure test.

[0003] In prior art, the application number of a kind of power lithium battery cell press test tool is 202421545707.6, including clamping assembly, two clamping assemblies are located positioning groove both sides respectively, clamping assembly includes push plate and moving plate, push plate and moving plate are movably connected by spring, limit component is movably installed on moving plate, limit component includes slider, fixed tube and movable rod, slider is movably installed on the top of moving plate, fixed tube is fixedly installed on slider, movable rod is movably installed in fixed tube, and clamping block is fixedly installed at the end of movable rod;The utility model is under the action of spring thrust, utilizes the clamping of moving plate to battery both sides, simultaneously by controlling the moving distance of push plate, adjusts the pre-tightening force of moving plate to battery pack, to meet various test requirements, guarantee the stability of connecting pipe, but it is inconvenient to detect the compression deformation degree of lithium battery cell, and detection protection effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of lithium battery cell press test tool to solve the problems of inconvenient detection of the compression deformation degree of lithium battery cell in prior art, and poor detection protection effect.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of lithium battery cell press test tool, including test base, the upper side of test base is equipped with test vertical plate and upper support, the upper side of test base is also rotatably equipped with test table by pivot, one end of pivot is connected with first motor by gear set transmission, the inner wall of upper support is equipped with lower protective cover by lead screw, the upper side of lower protective cover is also equipped with upper protective cover, the inner wall of lower protective cover is equipped with test pressure plate by hydraulic cylinder, the middle part of test pressure plate is equipped with pressure sensor.

[0006] Further, the gear set includes driven gear arranged at the lower end of the pivot, and the first motor is provided with a driving gear at one end, and the driving gear is meshed and connected with the driven gear.

[0007] Further, the first motor is a step motor, and the first motor is fixedly installed at the bottom of the test base.

[0008] Further, the lead screw comprises a lead screw rotationally arranged between the test base and the upper support, and the lower protective cover is threadedly connected to the middle of one end of the lead screw, and the lead screw is drivingly connected with a second motor at one end.

[0009] Further, the upper protective cover is a reverse U-shaped support, and the inner top of the upper protective cover is provided with a camera.

[0010] Further, the inner wall of the lower protective cover is provided with a guide sliding rail, and the test pressing plate is provided with a limiting sliding groove slidingly arranged with the guide sliding rail on both sides.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1, the utility model discloses a lithium battery cell pressure test device, which comprises a test base, a test stand, a test pressing plate, a lower protective cover, an upper protective cover, a hydraulic cylinder, a pressure sensor and a camera.

[0013] 2, the utility model discloses a test base upper side still be equipped with test stand through the pivot rotation, and the pivot one end is drivingly connected with the first motor through gear set, and the gear set includes the driven gear that sets up at the lower end of the pivot, and the first motor one end is equipped with the driving gear, and the driving gear is engagedly connected with the driven gear, makes through the first motor and gear set drive pivot and test stand horizontal rotation adjustment, to be able to adjust the horizontal detection angle of lithium battery cell.

[0014] 3, the utility model discloses an upper support inner wall is equipped with lower protective cover through lead screw, and the lower protective cover upper side still is equipped with upper protective cover, utilizes upper protective cover and lower protective cover to be able to cover and protect the outside of lithium battery cell, prevents the shell rupture splashing when lithium battery cell detection, improves the security of detection use, and through the lead screw drive protective cover lifting adjustment, thereby facilitating the feeding and cleaning treatment of test stand. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the no upper protective cover seat structure schematic diagram of the utility model;

[0018] Figure 3 It is the protective cover up move structure schematic diagram of the utility model;

[0019] Figure 4 It is the upper protective cover structure schematic diagram of the utility model.

[0020] In the drawing: 1, test base; 2, upper support; 3, test vertical plate; 4, lower protective cover; 5, upper protective cover; 6, screw rod; 7, second motor; 8, guide rod; 9, hydraulic cylinder; 10, test pressing plate; 11, pressure sensor; 12, test table; 13, guide slide rail; 14, limit sliding slot; 15, camera; 16, driven gear; 17, rotating shaft; 18, driving gear; 19, first motor; 20, PLC control cabinet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiments of the utility model, a lithium battery cell pressing test tool includes a test base 1, the upper side of the test base 1 is provided with a test vertical plate 3 and an upper support 2, the upper side of the test base 1 is also provided with a test table 12 through a rotating shaft 17, the inner wall of the upper support 2 is provided with a lower protective cover 4 through a screw rod, and the upper side of the lower protective cover 4 is also provided with an upper protective cover 5. The upper protective cover 4 and the lower protective cover 5 can shield and protect the outside of the lithium battery cell, prevent the shell from breaking and splashing during detection of the lithium battery cell, and improve the safety of detection use. The upper protective cover 5 is a inverted U-shaped support, the inner top of the upper protective cover 5 is provided with a camera 15, the inner wall of the lower protective cover 4 is provided with a test pressing plate 10 through a hydraulic cylinder 9, the test pressing plate 10 is driven to move horizontally by the hydraulic cylinder 9, so that the lithium battery cell can be clamped and fixed horizontally between the test vertical plate 3 and the test pressing plate 10 for pressure test processing, the middle part of the test pressing plate 10 is provided with a pressure sensor 11, and the pressure sensor 11 can detect the pressure in real time.

[0023] As Figure 1 andFigure 3 As shown in the figure, in order to adjust the lithium battery cell level detection angle, a first motor 19 is also connected to one end of the rotating shaft 17 through a gear set, the gear set includes a driven gear 16 arranged at the lower end of the rotating shaft 17, one end of the first motor 19 is provided with a driving gear 18, and the driving gear 18 is in meshing connection with the driven gear 16, the first motor 19 is a stepping motor, and the first motor 19 is fixedly installed on the inner bottom of the test base 1, so that the rotating shaft 17 and the test table 12 are horizontally rotated and adjusted by the first motor 19 and the gear set, thereby the lithium battery cell level detection angle can be adjusted.

[0024] As shown in the figure, Figure 1 and Figure 2 In order to facilitate the lifting adjustment of the protective cover, a lead screw 6 is also arranged between the test base 1 and the upper support 2, one end of the lead screw 6 is in threaded connection with the lower protective cover 4, one end of the lead screw 6 is in driving connection with a second motor 7, a PLC control cabinet 20 is arranged on the outer side of the upper support 2, and a guide rod 8 is arranged between the test base 1 and the upper support 2 and is in sliding connection with the lower protective cover 4, the upper protective cover and the lower protective cover can cover and protect the outside of the lithium battery cell, prevent the lithium battery cell from being broken and splashing during detection, improve the safety of detection, and drive the protective cover to lift and adjust through the lead screw, so as to facilitate the feeding or cleaning treatment of the upper part of the test table 12.

[0025] As shown in the figure, Figure 1 and Figure 2 In order to improve the precision of the test pressure plate 10 horizontal displacement pressure test, a guide sliding rail 13 is arranged on the inner wall of the lower protective cover 4, and a limiting sliding groove 14 is arranged on both sides of the test pressure plate 10 and is in sliding connection with the guide sliding rail 13, which is used for sliding guide when the test pressure plate 10 is horizontally adjusted, and is beneficial to improve the precision of the test pressure plate 10 horizontal displacement pressure test.

[0026] The working principle and use process of the utility model are as follows: when in use, the lithium battery cell to be tested is placed on the test table 12, then the lower protective cover 4 and the upper protective cover 5 are driven to move downward by the lead screw and cover the outside of the lithium battery cell, then the test pressure plate 10 is driven to move horizontally by the hydraulic cylinder 9, so that the lithium battery cell can be clamped and fixed horizontally between the test vertical plate 3 and the test pressure plate 10 for pressure test processing, the pressure sensor 11 is used for real-time detection of the pressure, and the camera 15 is used for observation of the battery deformation size, so as to detect the pressure resistance of the lithium battery cell, and the structure is simple, the test operation is convenient and fast.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A lithium battery cell voltage testing fixture, comprising a test base (1), characterized in that: The test base (1) is provided with a test stand (3) and an upper bracket (2) on its upper side. The test base (1) is also provided with a test platform (12) via a rotating shaft (17) on its upper side. One end of the rotating shaft (17) is connected to a first motor (19) via a gear set. The inner wall of the upper bracket (2) is provided with a lower protective cover (4) via a lead screw. The upper side of the lower protective cover (4) is also provided with an upper protective cover (5). The inner wall of the lower protective cover (4) is provided with a test pressure plate (10) via a hydraulic cylinder (9). The test pressure plate (10) is provided with a pressure sensor (11) in the middle.

2. The lithium battery cell voltage 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 voltage 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 voltage 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 voltage 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 voltage testing fixture according to claim 1, characterized in that: The lower protective cover (4) has a guide rail (13) on its inner wall, and the test pressure plate (10) has a limiting groove (14) on both sides that slides with the guide rail (13).

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