Battery cell high-voltage impact device

Abstract

The utility model discloses a battery cell high-pressure impact device which comprises a rack and a rack platform located above the rack, a sliding platform is arranged below the rack platform, and impact parts are arranged at the lower end of the sliding platform and the upper end of the rack; the impact part comprises a lower impact platform located above the rack and an upper impact platform located below the sliding platform, the lower impact platform is connected with the rack in an up-down sliding mode, the upper impact platform is connected with the sliding platform in an up-down sliding mode, and a thickness measuring sensor is arranged on the lower impact platform; according to the utility model, through the arrangement of the impact equipment, the impact test can be carried out on the laminated battery cell, and the thickness of the battery cell and whether the battery cell is short-circuited or not can be tested at the same time; the resource occupation of hot pressing equipment is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core production, in particular to a battery core high-voltage impact device. Background Art

[0002] After the cells are stacked on the stacking platform and before hot pressing, an integrated high-voltage impact device is added to test the cell thickness and short circuit under a certain pressure, so as to predict in advance whether the cells are qualified.

[0003] The current process adds detection devices to the hot pressing equipment to complete the impact and detection of the battery cells, but this will occupy the resources of the hot pressing equipment, resulting in reduced efficiency of the hot pressing equipment and increased production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a battery core high voltage impact device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery cell high-voltage impact device comprises a frame and a frame platform located above the frame, a sliding platform is provided below the frame platform, and an impact part is provided at the lower end of the sliding platform and the upper end of the frame;

[0007] The impact part includes a lower impact platform located above the frame and an upper impact platform located below the sliding platform. The lower impact platform is connected to the frame for vertical sliding movement, and the upper impact platform is connected to the sliding platform for vertical sliding movement. A thickness sensor is arranged on the lower impact platform. Positive and negative electrode probes are arranged at the lower end of the sliding platform, and probe support platforms arranged corresponding to the positive and negative electrode probes are arranged on both sides of the frame.

[0008] As a further solution of the utility model: a plurality of parallel arranged guide support rods are provided at the upper end of the frame, and the frame platform is fixedly connected to the upper ends of the guide support rods.

[0009] As a further solution of the utility model: a limiting sleeve is sleeved on the guide support rod, the limiting sleeve is slidably connected to the guide support rod, the sliding platform is fixedly connected to the upper part of the limiting sleeve, and the part of the limiting sleeve located below the sliding platform is the limiting height part.

[0010] As a further solution of the utility model: a high-voltage drive servo for driving the sliding platform to slide up and down is provided at the lower end of the frame platform.

[0011] As a further solution of the utility model: a first mounting seat is fixedly connected to the upper end of the frame, the lower impact platform is movably connected to the first mounting seat through a first spring support, and the probe supporting platform is located at the upper end of the first mounting seat.

[0012] As a further solution of the utility model: the lower end of the sliding platform is fixedly connected to a second mounting seat, the upper impact platform is movably connected to the second mounting seat through a second spring support, and the positive and negative electrode probes are located at the lower end of the second mounting seat.

[0013] As a further solution of the utility model: a short-circuit tester is provided on the upper end of the rack platform, and the short-circuit tester is connected to the positive and negative probe signals.

[0014] As a further solution of the utility model: a thickness gauge is provided on the upper end of the frame platform, and the thickness gauge is in signal communication with the thickness measuring sensor.

[0015] As a further solution of the utility model: a battery cell to be tested is arranged between the lower impact platform and the upper impact platform, and protective sheets are detachably connected to both the upper and lower surfaces of the battery cell.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up an impact device, the present invention can perform an impact test on the battery cells after stacking, and at the same time test the thickness of the battery cells and whether the battery cells are short-circuited, thereby reducing the resource occupation of the hot pressing equipment and reducing the production cost. Moreover, the equipment of the present application has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the impact device of this embodiment;

[0018] Figure 2 This is a top view of the impact platform of this embodiment;

[0019] Figure 3 This is an axonometric view of the present embodiment.

[0020] In the figure: 1-frame, 2-frame platform, 3-sliding platform, 4-high-voltage drive servo, 5-guide support rod, 6-limit sleeve, 7-first mounting seat, 8-first spring support, 9-lower impact platform, 10-thickness sensor, 11-probe support platform, 12-second mounting seat, 13-second spring support, 14-upper impact platform, 15-positive and negative probes, 16-short circuit tester, 17-thickness gauge, 18-protective sheet, 19-battery cell, 20-pneumatic telescopic slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In an embodiment of the utility model, a high-voltage impact device for a battery cell includes a frame 1 and a frame platform 2 located above the frame 1. The upper end of the frame 1 is provided with a plurality of parallel guide support rods 5. The frame platform 2 is fixedly connected to the upper end of the guide support rod 5. A sliding platform 3 is provided below the frame platform 2. A high-voltage drive servo 4 for driving the sliding platform 3 to slide up and down is provided at the lower end of the frame platform 2. In this embodiment, four guide support rods 5 are provided, and the four guide support rods 5 are arranged in a rectangular shape. A limiting sleeve 6 is sleeved on the guide support rod 5, and the limiting sleeve 6 is slidably connected to the guide support rod 5. The sliding platform 3 is fixedly connected to the upper part of the limiting sleeve 6, and the portion of the limiting sleeve 6 located below the sliding platform 3 is the limiting height portion.

[0023] The lower end of the sliding platform 3 and the upper end of the frame 1 are provided with an impact part, the impact part includes a lower impact platform 9 located above the frame 1, and an upper impact platform 14 located below the sliding platform 3. The upper end of the frame 1 is fixedly connected to a first mounting seat 7, and the lower impact platform 9 is movably connected to the first mounting seat 7 through a first spring support 8. The first spring support 8 is provided with multiple roots. In this application, support is provided by spring contraction. In addition, the guide and other equipment are commonly used in the art and are not described here. The lower end of the sliding platform 3 is fixedly connected to a second mounting seat 12, and the upper impact platform 14 is connected to the second mounting seat 12 through a second spring support 13. The mounting seat 12 is movably connected, the second spring support 13 is provided with multiple springs, and a thickness sensor 10 is provided on the lower impact platform 9; a positive and negative probe 15 is provided at the lower end of the sliding platform 3, and the positive and negative probe 15 is located at the lower end of the second mounting seat 12; a short circuit tester 16 is provided at the upper end of the frame platform 2, and the short circuit tester 16 is connected to the positive and negative probes 15 by signal; probe support platforms 11 are provided on both sides of the frame 1 and are arranged corresponding to the positive and negative probes 15, and the probe support platform 11 is located at the upper end of the first mounting seat 7; a thickness gauge 17 is provided at the upper end of the frame platform 2, and the thickness gauge 17 is connected to the thickness sensor 10 by signal.

[0024] In addition, in this embodiment, a plurality of pneumatic telescopic sliders are provided at the upper end of the lower impact platform 9 and the lower end of the upper impact platform 14. When there is no battery cell on the platform, it will pop out to prevent the platform from impacting. When the platform is working, it will retract, so that the contact surfaces of the lower impact platform 9 and the upper impact platform 14 with the battery cell are flat. A battery cell 19 to be tested is provided between the lower impact platform 9 and the upper impact platform 14, and a protective sheet 18 is removably connected to the upper and lower surfaces of the battery cell 19.

[0025] When the utility model is in use, after the battery cell stacking process is completed, the loading claw transports the battery cell 19 with the protective sheet 18 to the top of the lower impact platform 9, and places the battery cell 19 on the lower impact platform 9, then, the loading claw withdraws, and after the withdrawal, the high-voltage drive servo 4 starts to work, and the high-voltage drive servo 4 drives the sliding platform 3 to move downward and starts the downward pressing action. As the sliding platform 3 and the upper impact platform 14 below continue to move downward, the distance between the upper impact platform 14 and the battery cell 19 on the lower impact platform 9 gradually decreases until the lower end of the upper impact platform 14 contacts the battery cell 19, and then, the high-voltage drive servo 4 continues to push the sliding platform 3 to move downward. Since the upper impact platform 14 below the sliding platform 3 contacts the battery cell 19, under continuous downward pressure, the first spring support 8 and the second spring support 13 will continue to shrink so as to absorb the downward pressing stroke of the sliding platform 3 until the first spring support 8 and the second spring support 13 are completely retracted. And start to squeeze the battery cell 19. At the same time, the lower end of the limit sleeve 6 also contacts the upper end of the frame 1, so as to provide a limit for the downward pressing stroke of the sliding platform 3 and the upper impact platform 14 to prevent damage to the battery cell 19. When the upper impact platform 14 is pressed down to the position, at this time, the lower ends of the positive and negative probes 15 have also contacted the positive and negative poles of the battery cell 19, and the positive and negative poles of the battery cell 19 and the positive and negative probes 15 are supported by the probe support platform 11. At this time, the preparation work is completed, and the positive and negative poles of the battery cell 19 are provided with electrical signals through the positive and negative probes 15, so as to test whether the positive and negative poles of the battery cell 19 are short-circuited, and then the feedback signal is sent to the short-circuit tester 16. The short-circuit tester 16 determines whether it is short-circuited. If a short circuit occurs, the battery cell is marked as unqualified, and then the thickness of the battery cell is measured by the thickness sensor 10. After measurement, it is displayed by the thickness gauge 17. If the thickness exceeds the thickness threshold, the battery cell is marked as unqualified.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery cell high voltage impact device, comprising a frame (1) and a frame platform (2) located above the frame (1), wherein: A sliding platform (3) is provided below the frame platform (2), and an impact portion is provided at the lower end of the sliding platform (3) and the upper end of the frame (1); The impact part comprises a lower impact platform (9) located above the frame (1) and an upper impact platform (14) located below the sliding platform (3); the lower impact platform (9) is connected to the frame (1) in an up-and-down sliding manner; the upper impact platform (14) is connected to the sliding platform (3) in an up-and-down sliding manner; a thickness sensor (10) is provided on the lower impact platform (9); positive and negative electrode probes (15) are provided at the lower end of the sliding platform (3); and probe support platforms (11) arranged corresponding to the positive and negative electrode probes (15) are provided on both sides of the frame (1).

2. A battery cell high voltage impact device according to claim 1, characterized in that: The upper end of the frame (1) is provided with a plurality of parallel arranged guide support rods (5), and the frame platform (2) is fixedly connected to the upper ends of the guide support rods (5).

3. A battery cell high voltage impact device according to claim 2, characterized in that: A limiting sleeve (6) is sleeved on the guide support rod (5), the limiting sleeve (6) is slidably connected to the guide support rod (5), the sliding platform (3) is fixedly connected to the upper part of the limiting sleeve (6), and the part of the limiting sleeve (6) located below the sliding platform (3) is the limiting height part.

4. A battery cell high voltage impact device according to claim 1, characterized in that: A high-voltage drive servo (4) is provided at the lower end of the frame platform (2) for driving the sliding platform (3) to slide up and down.

5. A battery cell high voltage impact device according to claim 1, characterized in that: The upper end of the frame (1) is fixedly connected to a first mounting seat (7), the lower impact platform (9) is movably connected to the first mounting seat (7) via a first spring support (8), and the probe support platform (11) is located at the upper end of the first mounting seat (7).

6. A battery cell high voltage impact device according to claim 1, characterized in that: The lower end of the sliding platform (3) is fixedly connected to a second mounting seat (12), the upper impact platform (14) is movably connected to the second mounting seat (12) via a second spring support (13), and the positive and negative electrode probes (15) are located at the lower end of the second mounting seat (12).

7. A battery cell high voltage impact device according to claim 1, characterized in that: A short circuit tester (16) is provided at the upper end of the frame platform (2), and the short circuit tester (16) is signal-connected to the positive and negative electrode probes (15).

8. A battery cell high voltage impact device according to claim 1, characterized in that: A thickness gauge (17) is provided at the upper end of the frame platform (2), and the thickness gauge (17) is in signal communication with the thickness sensor (10).

9. A battery cell high voltage impact device according to claim 1, characterized in that: A battery cell (19) to be tested is provided between the lower impact platform (9) and the upper impact platform (14), and protective sheets (18) are detachably connected to the upper and lower surfaces of the battery cell (19).

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