CN220603648U

CN220603648U - Battery testing device

Info

Publication number: CN220603648U
Application number: CN202321713945.9U
Authority: CN
Inventors: 余园园; 王振园; 吴天宇; 裴婷婷; 陈利权
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-03-15
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a battery testing device, which comprises a support frame, a battery testing device and a battery testing device, wherein a slideway is arranged on the support frame; the bottom plate is fixedly connected to the slideway; the pressing plate is connected to the slideway in a sliding way and is positioned at one side of the bottom plate; the mounting plate is fixedly connected to the slideway and is positioned at one side of the pressing plate far away from the bottom plate; the pushing device is arranged on the mounting plate and acts on the pressing plate to move so as to push the pressing plate to move towards the bottom plate; through thrust unit's unified effort, clamp plate global motion compresses tightly the monomer electricity core, effectively guarantees the balanced application of pretightning force, and guarantees that the pretightning force of requirement is unanimous with actual pretightning force, ensures the accuracy of test result.

Description

Battery testing device

Technical Field

The utility model relates to the field of batteries, in particular to a battery testing device.

Background

In the field of batteries, a module typically comprises a plurality of individual cells, in particular square-shaped individual cells. Because a certain pretightening force can be applied during module assembly, the pretightening force can be applied by the mounting fixture during single cell testing based on application scenes.

The currently commonly used clamp is to fix the battery cell by using a plurality of bolts to penetrate through the edge positions of 2 metal plates from the front or back direction of the battery cell, and the initial pre-tightening force is converted into the pre-tightening force of each bolt; because each bolt can only be screwed down in sequence, but not simultaneously, the manual operation error is large, and it is difficult to ensure that all bolt pretightening forces are kept consistent, so that the actual pretightening force deviation of the battery cell is large, the stress of the battery cell is uneven, the more the number of holes of the clamp is, the larger the difference is, and the accuracy of test data is affected.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the utility model provides a battery testing device, wherein the pressing plate integrally moves to press the single battery cells through the uniform acting force of the pushing device, so that the balanced application of the pretightening force is effectively ensured, the pretightening force required is ensured to be consistent with the actual pretightening force, and the accuracy of a testing result is ensured.

The utility model adopts the technical proposal for solving the problems that:

a battery testing device comprising:

the support frame is provided with a slideway;

the bottom plate is fixedly connected to the slideway;

the pressing plate is connected to the slideway in a sliding way and is positioned at one side of the bottom plate;

the mounting plate is fixedly connected to the slideway and is positioned at one side of the pressing plate away from the bottom plate;

the pushing device is arranged on the mounting plate and acts on the pressing plate to move so as to push the pressing plate to move towards the bottom plate.

Further, the device also comprises a pressure sensor;

the pressure sensor is arranged on the pushing device, and the pushing device acts on the pressing plate through the pressure sensor.

Further, the pressure sensor is connected with a data display.

Further, the device also comprises a pushing plate;

the pushing plate is connected to the slideway in a sliding way and is positioned between the mounting plate and the pressing plate;

the pressure sensor is arranged on one side of the pushing plate, which is close to the pressing plate;

the pushing device is positioned at the other side of the pressing plate relative to the pressure sensor.

Further, the pushing device comprises a screw;

the screw rod is in threaded connection with the mounting plate and penetrates through the mounting plate.

Further, the pushing device also comprises a screw sleeve;

the screw sleeve is arranged on the mounting plate, and the screw rod is in threaded connection with the screw sleeve.

Further, the pushing device further comprises an abutment disc;

the abutting plate is arranged at one end of the screw rod, which is close to the pushing plate.

Further, the support frame comprises at least four support bars;

the slideway is arranged on the supporting bar;

the bottom plate, the pressing plate, the mounting plate and the pushing plate are quadrilateral plates;

the bottom plate, the pressing plate, the mounting plate and the four corners of the pushing plate are connected in the slide ways of the four supporting bars one by one.

Further, the support bar comprises a first branch and a second branch;

the slideway comprises a first slideway and a second slideway, the first slideway is arranged on the first branch, and the second slideway is arranged on the second branch;

the first branch and the second branch are detachably connected;

the bottom plate the clamp plate connect in first slide, the mounting panel with the push plate connect in the second slide.

Further, the support frame comprises a first side plate and a second side plate;

two slide ways are respectively arranged on the first side plate and the second side plate;

the bottom plate the clamp plate the mounting panel with two angles of one end of push plate set up one by one in two in the slide of first curb plate, the bottom plate the clamp plate the mounting panel with two angles of the other end of push plate set up one by one in two in the slide of second curb plate.

In summary, the battery testing device provided by the utility model has the following technical effects:

1) The pushing force provided by the pushing device is intensively and uniformly applied to the pressing plate, and all parts of the pressing plate move simultaneously, so that the pressing plate can uniformly press the single battery cell to be tested, the deviation of the pretightening force of all parts of the single battery cell to be tested is reduced, and the accuracy of test data is improved;

2) The support frame is combined in a supporting bar mode, the first branch, the bottom plate and the pressing plate are first modules, the second branch, the mounting plate, the pushing plate and the pushing device are second modules, and the two modules can be quickly mounted or dismounted through the first branch and the second branch; the single battery cell to be tested is arranged between the bottom plate and the pressing plate, and the two modules are installed to form a testing device for testing the pretightening force; after the test is completed, the second module is detached from the first module, and the first module can independently apply a pre-tightening force for non-test to the single battery cell;

3) The support frame is combined in a side plate mode, and the support of the side plate is firmer, so that the stability of the testing device is improved.

4) The pushing plate, the pressure sensor and the pressure data display are added, the pressure data are monitored, the required pretightening force is ensured to be consistent with the actual pretightening force, and the effectiveness of the test data is improved.

Drawings

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

FIG. 2 is a second schematic diagram of the present utility model;

fig. 3 is a schematic view of a third structure of the present utility model.

Wherein the reference numerals have the following meanings:

1. a support frame; 11. a support bar; 111. a first branch; 112. a second branch; 16. a first side plate; 17. a second side plate; 2. a bottom plate; 3. a pressing plate; 4. a mounting plate; 5. a pushing device; 51. a screw; 52. a screw sleeve; 53. an abutment plate; 6. a pressure sensor; 7. a pushing plate; 8. a slideway; 81. a first slideway; 82. a second slideway; 9. a first bolt; 10. a second bolt; 12. a third bolt; 13. a fourth bolt; 14. a fifth bolt; 15. and a single cell.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1, the utility model discloses a battery testing device, comprising:

the support frame 1 is provided with a slideway 8; preferably, in this embodiment, the slideway 8 is closed.

The support 1 comprises at least four support bars 11, and the slide 8 is arranged on the support bars 11, specifically, the slide 8 is arranged along the length direction of the support bars 11.

The bottom plate 2, the pressing plate 3, the mounting plate 4 and the pushing plate 7 are preferably quadrilateral plates, more specifically, the quadrilateral plates are rectangular;

four corners of the bottom plate 2, the pressing plate 3, the mounting plate 4 and the pushing plate 7 are connected in the slide ways 8 of the four supporting bars 11 one by one.

Taking four supporting bars 11 as an example, the bottom plate 2 is arranged between the four supporting bars 11 (two supporting bars 11 are respectively arranged at each end of the bottom plate 2) and is connected to the slide way 8, preferably, the bottom plate 2 is arranged at the bottom end of the slide way 8, the bottom plate 2 is fixedly connected with the slide way 8, and the fixed connection mode comprises but is not limited to welding and bolting; by way of example of bolting, the base plate 2 is locked in the slide way 8 by the first bolts 9, specifically, four first bolts 9 respectively penetrate from the outer sides of the slide way 8 of four supporting bars 11 and are screwed to four corners of the base plate 2, and the four first bolts lock and fix the four corners of the base plate 2.

The clamp plate 3 sets up between four support bars 11, clamp plate 3 sliding connection in slide 8 and lie in one side of bottom plate 2, because support bar 11 this moment is vertical setting, therefore clamp plate 3 lies in the top of bottom plate 2, and four angles of clamp plate 3 are connected in slide 8 through second bolt 10, and specifically, second bolt 10 passes slide 8 and spiro union in clamp plate 3, and the difference is, the second bolt does not lock clamp plate 3.

The mounting plate 4 is fixedly connected to the slideway 8 and is positioned on one side of the pressing plate 3 away from the bottom plate, namely, the mounting plate 4 is arranged between the four supporting bars 11 and is positioned above the pressing plate 3; with reference to the base plate 2, the four corners of the mounting plate 4 are fixedly connected to the corresponding support bars 11 by fourth bolts 13, respectively.

In addition, the number of the supporting bars 11 may be six, and correspondingly, each end of the bottom plate 2 is provided with three supporting bars 11, and of course, more supporting bars 11 may also be disposed on the side edge of the bottom plate 2, so that the purpose of the pushing plate 7 and the pushing device 5 can be effectively and firmly supported by more supporting bars 11.

A pushing device 5, preferably, the pushing device 5 comprises a screw 51; the screw 51 is screwed to the mounting plate 4 and penetrates the mounting plate 4.

The testing process of the battery testing device comprises the following steps: square single cell 15 is placed between bottom plate 2 and clamp plate 3, and under the effect of gravity at this moment, clamp plate 3 presses on single cell 15, and the screw rod 51 of rotation down this moment, screw rod 51 lower extreme butt in clamp plate 3, clamp plate 3 compress tightly single cell 15 downwards to carry out the test of pretension to single cell 15.

For the convenience of the rotation operation of the screw rod 51, the top of the screw rod 51 is provided with a polygonal protrusion, preferably, the polygonal protrusion is a cuboid, and the adjustable wrench is clamped to the polygonal protrusion to rotate the screw rod 51.

Further, if it is necessary to control the pressure of the rotating screw 51 abutting against the pressing plate 3, the battery testing device further includes a pressure sensor 6, the pressure sensor 6 is disposed at the lower end of the screw 51, the screw 51 abuts against the pressing plate 3 through the pressure sensor 6, preferably, the pressure sensor 6 is provided with a data display, and all the pressure data of the pressure sensor 6 are displayed on the data display, so as to monitor the pretightening force applied by the pressing plate 3 to the single battery cell 15 in real time.

In addition, as can be seen from the above, the screw 51 is directly screwed to the mounting plate 4, and in order to ensure the rotation of the screw 51 on the mounting plate 4, the pushing device 5 further includes a screw sleeve 52, the screw sleeve 52 is disposed on the mounting plate 4, and the screw 51 is screwed in the screw sleeve 52; preferably, the screw sleeve 52 includes a base plate and a cylinder, the cylinder is disposed on the base plate, the screw hole penetrates through the base plate and the cylinder, the base plate is embedded in the bottom of the mounting plate 4, and preferably, the base plate and the mounting plate 4 are detachably linked through screws, and the cylinder penetrates through the top of the bottom plate 2.

More preferably, the circumference of the cylinder is provided with an oil filling hole, and oil is filled into the screw hole through the oil filling hole, so that the screw 51 can rotate smoothly.

Still further, in order to avoid the pressure sensor 6 from rotating along with the screw 51, the battery testing device further includes a push plate 7, the push plate 7 is disposed between the mounting plate 4 and the pressing plate 3, and the push plate 7 is slidably disposed on the four supporting frames 1 through the four third bolts 12 with reference to the pressing plate 3.

The pressure sensor 6 is arranged on one side of the pushing plate 7, which is close to the pressing plate 3; the pushing device 5 is located on the other side of the pressure plate 3 with respect to the pressure sensor.

More preferably, to better ensure the contact between the screw 51 and the pushing plate 7, the pushing device 5 further includes a contact disc 53, where the contact disc 53 is disposed at one end of the screw 51 near the pushing plate 7 (i.e. the lower end of the screw 51), and it is known that the screw 51 contacts the pushing plate 7 through the contact disc 53.

As can be seen from the above, after the abutment plate 53 abuts against the pusher plate 7, the pusher plate 7 pushes the pressure sensor 6 to move toward the platen 3.

Other possible embodiments of the pushing device 5 further comprise: the pushing device 5 is a pneumatic cylinder or a linear motor, the pneumatic cylinder or the linear motor is arranged at the bottom of the mounting plate 4, and the pneumatic cylinder or the linear motor acts on the pushing plate 7 to enable the pushing plate 7 to move.

In addition, the pressing plate 3 and the pushing plate 7 can be slidably connected with the slide way 8 through the sliding block, and in particular, at least one end of the slide way 8 is an open end at this time, so that the sliding block can slide in conveniently.

Example two

On the basis of the first embodiment, referring to fig. 1 and 2, in order to convert the battery testing device into a conventional pretightening force fixture, the supporting bar 11 includes a first branch 111 and a second branch 112; the slide way 8 comprises a first slide way 81 and a second slide way 82, the first slide way 81 is arranged on a first branch 111, and the second slide way 82 is arranged on a second branch 112; first finger 111 and second finger 112 are detachably connected, and first slide 81 and second slide 82 are collinear; the bottom plate 2 and the pressing plate 3 are connected to a first slideway 81, and the mounting plate 4 and the pushing plate 7 are connected to a second slideway 82.

Specifically, taking four first branches 111 and four second branches 112 as an example, the first slide way 81 and the second slide way 82 between the first branches 111 and the second branches 112 are partially overlapped, the four first branches 111 and the four second branches 112 are locked and fixed by four fifth bolts 14, specifically, the fifth bolts 14 penetrate through the partially overlapped positions of the first slide way 81 and the second slide way 82, and finally the first branches 111 and the four second branches 112 are locked and fixed by nuts.

According to the above, the four first branches 111, the bottom plate 2 and the pressing plate 3 are classified as a first module, and the second branches 112, the mounting plate 4, the pushing plate 7 and the pushing device 5 are classified as a second module; when the pre-tightening force test is required to be performed on the single battery cell 15, the first module and the first branch 111 can be connected with the second branch 112 of the second module through the fifth bolt 14, so that the first slide 81 and the second slide 82 are collinear, after the test is completed, the fifth bolt 14 is removed, the connection of the first branch 111 and the second branch 112 of the second module is released, so that the first module and the second module are separated, and the first module can continue to be used as a conventional clamp to continuously apply the pre-tightening force to the single battery cell 15; the battery test device is thereby switched between the test clamp and the conventional pretensioning clamp.

Example III

Unlike the first embodiment, in this embodiment, referring to fig. 3, the support frame 1 includes a first side plate 16 and a second side plate 17;

two slide ways 8 are respectively arranged on the first side plate 16 and the second side plate 17; the bottom plate 2, the pressing plate 3, the mounting plate 4 and the pushing plate 7 are quadrilateral plates; two corners of one end of the bottom plate 2, the pressing plate 3, the mounting plate 4 and the pushing plate 7 are arranged in two slideways of the first side plate 16 one by one, and two corners of the other end of the bottom plate 2, the pressing plate 3, the mounting plate 4 and the pushing plate 7 are arranged in two slideways of the second side plate 17 one by one.

From the above, it can be seen that the two slides 8 at the same end of the base plate 2 are located on the same side plate, thereby increasing the stability of the support frame 1.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A battery testing apparatus, comprising:

the support frame (1) is provided with a slideway (8);

a bottom plate (2) fixedly connected to the slideway (8);

the pressing plate (3) is connected to the slideway (8) in a sliding manner and is positioned at one side of the bottom plate (2);

the mounting plate (4) is fixedly connected to the slideway (8) and is positioned on one side of the pressing plate (3) away from the bottom plate (2);

the pushing device (5) is arranged on the mounting plate (4), and the pushing device (5) acts on the pressing plate (3) to move so as to push the pressing plate (3) to move towards the bottom plate (2).

2. A battery testing device according to claim 1, further comprising a pressure sensor (6);

the pressure sensor (6) is arranged on the pushing device (5), and the pushing device (5) acts on the pressing plate (3) through the pressure sensor (6).

3. A battery testing device according to claim 2, characterized in that the pressure sensor (6) is connected with a data display.

4. A battery testing device according to claim 2, further comprising a push plate (7);

the pushing plate (7) is connected to the slideway (8) in a sliding manner and is positioned between the mounting plate (4) and the pressing plate (3);

the pressure sensor (6) is arranged on one side of the pushing plate (7) close to the pressing plate (3);

the pushing device (5) is positioned at the other side of the pressing plate (3) relative to the pressure sensor.

5. A battery testing device according to claim 4, characterized in that the pushing means (5) comprise a screw (51);

the screw rod (51) is in threaded connection with the mounting plate (4) and penetrates through the mounting plate (4).

6. A battery testing device according to claim 5, wherein the pushing device (5) further comprises a screw sleeve (52);

the screw sleeve (52) is arranged on the mounting plate (4), and the screw rod (51) is in threaded connection with the screw sleeve (52).

7. A battery testing device according to claim 5, wherein the pushing device (5) further comprises an abutment disc (53);

the abutting disc (53) is arranged at one end of the screw rod (51) close to the pushing plate (7).

8. A battery testing device according to claim 4, characterized in that the support frame (1) comprises at least four support bars (11);

the slideway (8) is arranged on the supporting bar (11);

the bottom plate (2), the pressing plate (3), the mounting plate (4) and the pushing plate (7) are quadrilateral plates;

the bottom plate (2), the pressing plate (3), the mounting plate (4) and the four corners of the pushing plate (7) are connected in the slide ways (8) of the four supporting bars (11) one by one.

9. A battery testing device according to claim 8, wherein the support bar (11) comprises a first limb (111) and a second limb (112);

the slideway (8) comprises a first slideway (81) and a second slideway (82), the first slideway (81) is arranged on the first branch (111), and the second slideway (82) is arranged on the second branch (112);

the first branch (111) and the second branch (112) are detachably connected;

the bottom plate (2) and the pressing plate (3) are connected to the first slide way (81), and the mounting plate (4) and the pushing plate (7) are connected to the second slide way (82).

10. A battery testing device according to claim 4, wherein the support frame (1) comprises a first side plate (16) and a second side plate (17);

two slide ways (8) are respectively arranged on the first side plate (16) and the second side plate (17);

the bottom plate (2), the clamp plate (3), the mounting panel (4) with two angles of one end of push away board (7) set up one by one in two in the slide of first curb plate (16), bottom plate (2), clamp plate (3) the mounting panel (4) with two angles of the other end of push away board (7) one by one set up in two in the slide of second curb plate (17).