Pressing rubber roller for spacer on surface of battery cell

Abstract

The utility model discloses a battery cell surface spacer pressing rubber roller which comprises a rubber roller body, and exhaust protrusions are arranged on the outer surface of the rubber roller body. The rubber roller comprises a rubber roller body, the rubber roller body is provided with at least one exhaust protrusion, the exhaust protrusions are arranged in the axis direction of the rubber roller body, and the exhaust protrusions are arranged on the surface of the rubber roller body and are arranged in the axis direction of the rubber roller body. And in the compaction process, air between the separators on the surface of the battery cell and the battery cell is extruded to two sides and is discharged from the side edges, so that the separators are tightly attached to the surface of the battery cell, and the product yield is greatly improved.

Description

Technical Field

[0001] The utility model relates to a rubber roller for pressing an insulator on the surface of an electric core. Background Art

[0002] It is generally believed that when the cells in the module are arranged together and in working condition, relative friction movement will occur, which may cause damage to the cell blue film, substandard insulation voltage of the cell, etc. In order to avoid the above situation, the surface of the current automotive power cell must be affixed with a spacer or a certain thickness of double-sided tape as a cell surface separator. Generally, the separator is affixed manually, but with the rapid development of automated equipment, some automatic separator affixing stations have appeared on the market in recent years.

[0003] Due to defects in automation technology and cost constraints, the insulators on the surface of the battery cells posted by the automatic insulator sticking station generally have problems such as bubbles. Therefore, power battery manufacturers have to lower the standards for sticking insulators to improve the yield rate of insulator sticking at the automatic station.

[0004] In the automatic spacer attachment station of the battery cell, a rubber roller is generally used to compact the spacer. However, due to assembly and long-term use on the actual production line, the conventional rubber roller cannot expel the air in time after rolling the spacer on the surface of the battery cell, and there will be bubbles and bulges between the spacer and the battery cell.

[0005] Not only the automatic work station, but also the relevant tooling will be used when manually installing the insulator on the surface of the battery cell. The rubber roller will also be used for the final compaction process. After the insulator is installed, some parts will still have bulging after repeated compaction. Utility Model Content

[0006] The utility model aims to provide a rubber roller for pressing the insulator on the surface of a battery cell to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A cell surface separator pressing rubber roller comprises a rubber roller body, wherein the outer surface of the rubber roller body is provided with exhaust protrusions; the exhaust protrusions are arranged along the axis direction of the rubber roller body, and at least one exhaust protrusion is provided.

[0009] As a further solution of the utility model: a rubber roller shaft is coaxially arranged in the rubber roller body.

[0010] As a further solution of the utility model: a rolling surface is provided outside the rubber roller body, and the exhaust protrusion is located outside the rolling surface.

[0011] As a further solution of the utility model: the exhaust protrusion includes a first protrusion and a second protrusion, and the first protrusion and the second protrusion are connected by a connecting part in the middle of the rubber roller body.

[0012] As a further solution of the utility model: the first convex strip and the second convex strip are both straight line segment structures.

[0013] As a further solution of the utility model: the angle between the first convex strip and the second convex strip at the connection portion is a, and 180°>a>120°.

[0014] As a further solution of the utility model: the end of the connecting part is an arc-shaped structure.

[0015] As a further solution of the utility model: the height of the exhaust protrusion is 3-5 mm, there are 12 exhaust protrusions, and the 12 exhaust protrusions are arranged around the periphery.

[0016] Compared with the prior art, the beneficial effect of the utility model is as follows: the utility model sets exhaust protrusions on the surface of the rubber roller, and the exhaust protrusions are arranged along the axis direction of the rubber roller. Therefore, during the compaction process, the air between the insulator on the surface of the battery cell and the air in the middle of the battery cell will be squeezed to both sides and discharged from the sides, so that the insulator fits tightly to the surface of the battery cell, greatly improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] In the figure: 1-rubber roller shaft, 2-rubber roller body, 3-exhaust protrusion, 31-first protrusion, 32-second protrusion, 33-connecting part, 4-rolling surface. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 In an embodiment of the utility model, a rubber roller for pressing a cell surface insulator comprises a rubber roller body 2, a rubber roller shaft 1 is coaxially arranged in the rubber roller body 2, an exhaust protrusion 3 is provided on the outer surface of the rubber roller body 2, a rolling surface 4 is provided outside the rubber roller body 2, and the exhaust protrusion 3 is located outside the rolling surface 4.

[0021] The exhaust protrusion 3 is arranged along the axial direction of the rubber roller body 2, and the exhaust protrusion 3 is provided with at least one. In the present embodiment, the exhaust protrusion 3 comprises a first protrusion 31 and a second protrusion 32. The first protrusion 31 and the second protrusion 32 are connected by a connecting portion 33 in the middle of the rubber roller body 2. The end of the connecting portion 33 is an arc structure to prevent the connection force from damaging the surface of the battery cell during the pressing process. The first protrusion 31 and the second protrusion 32 are both straight segment structures. The angle between the first protrusion 31 and the second protrusion 32 at the connecting portion 33 is a, and 180°>a>120°. The height of the exhaust protrusion 3 is 3-5mm, which can effectively increase the adhesion between the insulator and the surface of the battery cell during the rolling process. The exhaust protrusion 3 is provided with 12, and the 12 exhaust protrusions 3 are arranged around. If the protrusions are too dense or too sparse, the exhaust performance will be affected.

[0022] When the utility model is in use, a manual spacer pasting tool or an automatic spacer pasting station is used to complete the pasting of the spacer on the surface of the battery cell; in the process of using the tool or the station to automatically paste the spacer, a rubber roller is generally used for the last compaction process. The surface of the rubber roller body 2 of this embodiment is designed with an exhaust protrusion 3 for exhausting air, and the exhaust protrusion 3 of this embodiment is a V-shaped structure as a whole. During use, the middle part of the exhaust protrusion 3 of the V-shaped structure first contacts the spacer on the surface of the battery cell, and then the rear part contacts the spacer on the surface of the battery cell in turn. Therefore, during the compaction process, the air between the spacer on the surface of the battery cell and the battery cell will be squeezed to both sides and discharged from the sides, so that the spacer fits tightly to the surface of the battery cell, greatly improving the product yield.

[0023] 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.

[0024] 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 cell surface separator pressing rubber roller, comprising a rubber roller body (2), characterized in that: An exhaust protrusion (3) is provided on the outer surface of the rubber roller body (2); the exhaust protrusion (3) is arranged along the axial direction of the rubber roller body (2), and at least one exhaust protrusion (3) is provided.

2. The battery cell surface separator pressing rubber roller according to claim 1, characterized in that: A rubber roller shaft (1) is coaxially arranged in the rubber roller body (2).

3. The battery cell surface separator pressing rubber roller according to claim 1, characterized in that: A rolling surface (4) is provided on the outside of the rubber roller body (2), and the exhaust protrusion (3) is located outside the rolling surface (4).

4. The battery cell surface separator pressing rubber roller according to claim 1, characterized in that: The exhaust protrusion (3) comprises a first protrusion (31) and a second protrusion (32), wherein the first protrusion (31) and the second protrusion (32) are connected via a connecting portion (33) in the middle of the rubber roller body (2).

5. The battery cell surface separator pressing rubber roller according to claim 4, characterized in that: The first convex strip (31) and the second convex strip (32) are both straight line segment structures.

6. A cell surface separator pressing rubber roller according to claim 4 or 5, characterized in that: The included angle between the first convex strip (31) and the second convex strip (32) at the connecting portion (33) is a, and 180°>a>120°.

7. The battery cell surface separator pressing rubber roller according to claim 4, characterized in that: The end of the connecting portion (33) is an arc-shaped structure.

8. The battery cell surface separator pressing rubber roller according to claim 1, characterized in that: The height of the exhaust protrusion (3) is 3-5 mm, and there are 12 exhaust protrusions (3), and the 12 exhaust protrusions (3) are arranged around the periphery.

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