Battery folding top edge sealing device

Abstract

The invention relates to battery production and processing, in particular to a battery folding top sealing edge device, which comprises an X-Z axis position adjusting mechanism, a battery cell clamping mechanism, a battery top sealing edge folding 90-degree mechanism and a battery top sealing edge pressing mechanism, the battery folding top sealing edge mechanism adopts a rotary folding design, and the rotary folding is a centering folding battery top sealing edge. Battery short circuit and unstable current caused by pulling damage of a diaphragm and a pole piece in the battery are prevented. And the turnover knife and the upper pressing knife are quick-detachable, so that the batteries with different widths can be conveniently replaced and adapted.

Description

Technical Field

[0001] This patent belongs to the field of battery processing, specifically a battery folding top edge sealing device. Background Art

[0002] With the continuous development of new energy, the market's requirements for the capacity and space of new energy batteries are constantly increasing, requiring inter-cell battery space. By optimizing the battery top sealing, 0.2% to 0.3% of the battery space can be saved. During the battery top sealing process, the diaphragm and pole piece inside the battery are easily damaged, causing battery short circuit and current instability. Summary of the invention

[0003] The patented battery folding top sealing mechanism can improve electricity production efficiency and improve the yield rate. The battery folding top sealing mechanism adopts a rotating folding design. Rotating folding is a fixed-center folding battery top sealing to prevent the diaphragm and pole piece inside the battery from being damaged by strain, causing battery short circuit and unstable current. The folding knife and upper pressing knife are quick-detachable, which is convenient for replacement to adapt to batteries of different widths.

[0004] The specific technical solution is:

[0005] A battery top folding edge sealing device, comprising: an XZ axis position adjustment mechanism, a battery cell clamping mechanism, a battery top edge folding 90 degree mechanism, and a battery top edge pressing mechanism;

[0006] The XZ axis position adjustment mechanism is used to adjust the relative position of the battery, and comprises: a first module (6) and a second module (7), wherein the first module (6) is responsible for position movement in the X axis direction; and the second module (7) is responsible for movement in the Z axis direction;

[0007] The battery cell clamping mechanism is used for clamping the two sides of the battery to protect the two sides of the edge seal from opening when the battery top edge seal is folded, and comprises: a finger cylinder (8), a guide rail (1), a compression spring (2), a sliding push block (31), a right skirt clamp (32), a left skirt clamp (33), a finger clamp connector B (34), and a finger clamp connector A (35);

[0008] The battery top sealing edge folding mechanism comprises: a servo motor (9), a synchronous wheel (11), a synchronous belt (4), and a folding knife (22); the servo motor drives the folding knife to rotate to fold the battery top sealing edge into 90 degrees;

[0009] The battery top sealing mechanism is used to press the battery top sealing edge to ensure the consistency of the fold position, and comprises: a cylinder (10), a battery top cylinder (14), a second guide rail (13), a buffer spring (15), a slider connecting plate (40), a Z-axis movable plate (44), a cylinder joint (45), and an upper pressing knife (51);

[0010] The servo motor (9) drives the XZ axis to adjust the front and rear and Z axis positions; the finger cylinder (8) protects both sides of the battery; the battery pressure cylinder (14) presses the top sealing edge, and the servo motor (9) drives the folding knife (22) to rotate 90 degrees to fold the top sealing edge of the battery 90 degrees.

[0011] Furthermore, the first module includes a servo motor, a guide rail, a screw rod, and a slide seat, and converts the rotational motion of the servo motor into linear motion.

[0012] Beneficial Effects

[0013] The battery folding top sealing mechanism adopts a rotating folding design. Rotating folding is a fixed-center folding battery top sealing to prevent the diaphragm and pole piece inside the battery from being damaged, causing battery short circuit and unstable current. The folding knife and upper pressing knife are quick-release, which is convenient for replacement to adapt to batteries of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the patent;

[0015] Figure 2 This is a schematic diagram of the overall structure of the patent from another angle;

[0016] Figure 3 It is a schematic diagram of the side structure of the patent;

[0017] Figure 4 This is a schematic diagram of the patented XZ axis position adjustment mechanism;

[0018] Figure 5 It is a schematic diagram of the structure of the patented battery cell clamping mechanism;

[0019] Figure 6 This is a schematic diagram of the patented battery top sealing edge folding 90 degrees mechanism;

[0020] Figure 7 It is a schematic diagram of the structure of the patented pressure cell top edge sealing mechanism. DETAILED DESCRIPTION

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

[0022] As the new energy market continues to increase the capacity and space requirements of batteries, more battery space is needed between the cells. By optimizing the top sealing of the battery, 0.2% to 0.3% of the battery space can be saved. During the top sealing process of the battery, the diaphragm and the pole piece inside the battery are easily damaged, causing battery short circuit and current instability.

[0023] The battery folding top edge sealing device provided by this patent adopts a rotating folding design. Rotating folding is a center-fixed folding battery top edge sealing to prevent the diaphragm and pole piece inside the battery from being damaged by strain, causing battery short circuit and unstable current. The folding knife and upper pressing knife are quick-detachable, which is convenient for replacement to adapt to batteries of different widths.

[0024] like Figure 1 , Figure 2 The battery top folding and edge sealing device of this patent includes: XZ axis position adjustment mechanism, battery cell clamping mechanism, battery top edge folding 90 degree mechanism, battery top edge pressing mechanism;

[0025] Among them, Figure 1 , Figure 2 , Figure 3 , Figure 4 , the XZ axis position adjustment mechanism in this patent is used to adjust the relative position of the battery;

[0026] Specifically, Figure 4 , an XZ axis position adjustment mechanism, for adjusting the relative position of the battery, comprises: a first module (6), responsible for position movement in the X axis direction; a second module (7), responsible for movement in the Z axis direction; a module connecting plate (16), a module mounting plate (17), and a module reinforcing rib plate (19); wherein the module is a servo module, which utilizes the function of a servo motor to drive the slide to perform linear motion along a linear guide rail; a modular product with an integrated design of a servo motor, a screw rod and a synchronous belt, which converts the rotational motion of the servo motor into linear motion.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , the battery cell clamping mechanism is used to clamp the two sides of the battery to protect the sealing edges on both sides from opening when the top sealing edge of the battery is folded;

[0028] Specific as Figure 5The battery cell clamping mechanism comprises: a guide rail (1), a compression spring (2), a limit screw (3), a finger cylinder (8), a limit block (23), a spring seat (26), a sliding push block (31), a right skirt clamp (32), a left skirt clamp (33), a finger clamp connector B (34), and a finger clamp connector A (35); wherein the finger cylinder is a pneumatic component, and its working principle is to use high-pressure gas to drive the cylinder to push the long rod to extend or retract, thereby completing a certain mechanical operation. The movement of the finger cylinder can be divided into two main stages: a push stage and a retraction stage.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 6 The battery top sealing edge folding 90 degrees mechanism uses a servo motor to drive the rotating folding plate to fold the battery top sealing edge into 90 degrees;

[0030] Specific as Figure 6 The battery top sealing edge folding mechanism of 90 degrees comprises: a servo motor (9), a 3M synchronous belt (4), a synchronous wheel (11), a reinforcing rib (18), a module connecting plate (20), a folding knife (22), a slide block (24), a bearing seat (25), an adjusting block (27), an arch bracket (28), a rotating shaft A (29), a motor mounting seat (30), a gasket (36), a rotating plate (37), a rotating shaft (38), and a reinforcing rib (42);

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , a battery top sealing mechanism is used to press the battery top sealing edge to ensure the consistency of the fold position;

[0032] Specific as Figure 7 , Battery top sealing mechanism: used to press the battery top sealing edge to ensure the consistency of the fold position. It includes: cylinder (10), guide rail (13), battery cylinder (14), buffer spring (15), slider connecting plate (40), transverse mounting plate (41), reinforcing rib (42), cylinder mounting seat (43), Z-axis movable plate (44), cylinder joint (45), limit block (46), guide block (47), gasket (48), cylinder fixing plate (49), triangular rib (50), upper pressing knife (51), cylinder joint (52), baffle (53);

[0033] like Figure 1 , the servo motor drives to adjust the position in the XZ axis direction; the finger cylinder (8) retracts to clamp the battery core mechanism to protect both sides of the battery; the battery pressing cylinder (14) moves to press the top sealing edge; the servo motor (9) drives the rotating folding knife (22) to rotate 90 degrees to fold the top sealing edge of the battery 90 degrees.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery folding top edge sealing device, comprising: XZ axis position adjustment mechanism, battery cell clamping mechanism, battery top sealing 90 degree folding mechanism, battery top sealing mechanism; The XZ axis position adjustment mechanism is used to adjust the relative position of the battery, and comprises: a first module (6) and a second module (7), wherein the first module (6) is responsible for position movement in the X axis direction; and the second module (7) is responsible for movement in the Z axis direction; The battery cell clamping mechanism is used for clamping the two sides of the battery to protect the two sides of the edge seal from opening when the battery top edge seal is folded, and comprises: a finger cylinder (8), a guide rail (1), a compression spring (2), a sliding push block (31), a right skirt clamp (32), a left skirt clamp (33), a finger clamp connector B (34), and a finger clamp connector A (35); The battery top sealing edge folding mechanism comprises: a servo motor (9), a synchronous wheel (11), a synchronous belt (4), and a folding knife (22); the servo motor drives the folding knife to rotate to fold the battery top sealing edge into 90 degrees; The battery top sealing mechanism is used to press the battery top sealing edge to ensure the consistency of the fold position, and comprises: a cylinder (10), a battery top cylinder (14), a second guide rail (13), a buffer spring (15), a slider connecting plate (40), a Z-axis movable plate (44), a cylinder joint (45), and an upper pressing knife (51); The servo motor (9) drives the XZ axis to adjust the front and rear and Z axis positions; the finger cylinder (8) protects both sides of the battery; the battery pressure cylinder (14) presses the top sealing edge, and the servo motor (9) drives the folding knife (22) to rotate 90 degrees to fold the top sealing edge of the battery 90 degrees.

2. A battery folding top edge sealing device according to claim 1, characterized in that: The first module comprises a motor, a guide rail and a slide seat, and converts the rotational motion of the motor into linear motion.

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