A battery piece turning device

Abstract

The utility model provides a kind of battery piece turnover device, it can quickly turn over, save the time of battery piece in and out basket, improve production efficiency, it includes fixed base, rotating shaft, rotating motor, fixed base is connected with rotating motor by rotating shaft, it is characterized by: fixed base is equipped with multiple groups of battery piece support column respectively for supporting the bottom of battery piece, multiple groups of positioning clamping jaw, positioning clamping jaw is connected with displacement mechanism, positioning clamping jaw end is equipped with the positioning clamping extending towards horizontal direction, when battery piece is placed on battery piece support column, displacement mechanism is used to drive two oppositely arranged positioning clamping jaw to be close to each other and make positioning clamping move to the just above battery piece.

Description

Technical Field

[0001] This utility model relates to the field of flipping mechanism technology, specifically a battery cell flipping device. Background Technology

[0002] Among existing photovoltaic cell manufacturing technologies, heterojunction (HJT) cells are hailed as the next-generation high-efficiency cell technology with the greatest industrial potential due to their advantages such as high conversion efficiency, short process flow, thin silicon wafer application, low temperature coefficient, and bifacial power generation capability. Chemical Vapor Deposition (CVD) is the core process for HJT cell fabrication, and heterojunction amorphous silicon thin film deposition technologies mainly include two routes: PECVD (Plasma Enhanced CVD) and HWCVD (Hot Wire CVD).

[0003] Both technical routes employ an I-IN-P coating sequence. In this process, after coating the I layer, the solar cell needs to be flipped over before coating the IN layer (intrinsic amorphous silicon thin film). After the IN layer is coated, it is flipped again to coat the P layer (intrinsic amorphous silicon thin film). Conventional automated wafer flipping involves loading the solar cell into a basket via a flow channel and rotating the basket to achieve the flipping effect. The basket structure can be found in CN209843680U, where the solar cells are stacked layer by layer. Therefore, after flipping, the solar cell needs to be removed for further coating, increasing the number of wafers entering and leaving the basket and reducing production efficiency. Utility Model Content

[0004] To address the problem of low efficiency caused by using baskets for flipping solar cells, this invention provides a solar cell flipping device that can quickly flip cells, saving time in loading and unloading them from the basket and improving production efficiency.

[0005] The technical solution is as follows: a battery cell flipping device, comprising a fixed base, a rotating shaft, and a rotating motor, wherein the fixed base is connected to the rotating motor via the rotating shaft, characterized in that: the fixed base is provided with multiple sets of battery cell support columns for supporting the bottom of the battery cell and multiple sets of positioning claws, wherein the positioning claws are connected to a displacement mechanism, and the ends of the positioning claws are provided with positioning clamps extending in a horizontal direction; when the battery cell is placed on the battery cell support columns, the displacement mechanism is used to drive two oppositely arranged positioning claws to move closer to each other and move the positioning clamps to directly above the battery cell.

[0006] Furthermore, when flipped, the fixing seat rotates around the axis of the rotation axis; each group of battery cell support columns includes at least two oppositely arranged short-side support columns and at least two oppositely arranged long-side support columns, the two opposite long-side support columns are distributed along the axis of the rotation axis, and the two opposite short-side support columns are distributed perpendicular to the axis of the rotation axis.

[0007] Furthermore, the positioning grippers, which are arranged opposite to each other, are located on both sides of the fixed base. The bottom of the positioning gripper extends to the bottom of the fixed base and is connected to the displacement mechanism through the gripper fixing plate. The gripper fixing plate connects multiple positioning grippers located on the same side.

[0008] Furthermore, the rotating shaft includes a first rotating shaft and a second rotating shaft. One end of the fixed base is connected to the rotating motor through the first rotating shaft, and the other end of the fixed base is connected to the second rotating shaft. A limit block is connected to the second rotating shaft, and the limit block rotates around the axis of the second rotating shaft. A limit buffer is installed on the rotation path of the limit block.

[0009] Beneficial effects: When it is necessary to flip the battery cells, simply place the battery cells on the battery cell support column, then control the positioning jaws to move closer together so that the positioning jaws move directly above the battery cells. Then, the rotating motor drives the various components to rotate, and the battery cells fall freely onto the positioning jaws by gravity, thus flipping the battery cells. The whole process is smooth and fast, and there are multiple sets of components that can flip multiple battery cells at the same time, ensuring processing efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0012] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0013] Figure 4 This is a schematic diagram of the position structure of the limit block and the limit buffer. Detailed Implementation

[0014] like Figure 1 , Figure 2The device shown is a battery cell flipping device, which includes a fixed base 1, a rotating shaft 2, and a rotating motor 3. The fixed base 1 is connected to the rotating motor 3 through the rotating shaft 2 (the rotating shaft 2 is connected to the output shaft of the rotating motor 3 through a coupling). The fixed base 1 is provided with multiple sets of battery cell support columns for supporting the bottom of the battery cell and multiple sets of positioning claws 4. The positioning claws 4 are connected to a displacement mechanism. The end of the positioning claws 4 is provided with a positioning clamp 41 extending in the horizontal direction (which can be made of PEEK material). When the battery cell is placed on the battery cell support column, the displacement mechanism is used to drive the two oppositely arranged positioning claws 4 to move closer to each other and move the positioning clamp 41 to directly above the battery cell.

[0015] Specifically, when flipping, the fixed base 1 rotates around the axis of the rotation axis 2; each set of battery cell support columns includes at least two oppositely arranged short side support columns 5 and at least two oppositely arranged long side support columns 6. The two opposite long side support columns 6 are distributed along the axis of the rotation axis 2, and the two opposite short side support columns 5 are distributed perpendicular to the axis of the rotation axis 2. This makes the short side of the battery cell located at the center of rotation, and the centrifugal force of the battery cell is small.

[0016] Combination Figure 3 The positioning grippers 4 are positioned opposite each other on both sides of the fixed base 1. The bottom of the positioning grippers 4 extends to the bottom of the fixed base 1 and is connected to the displacement mechanism 8 through the gripper fixing plate 7. The gripper fixing plate 7 connects multiple positioning grippers 4 located on the same side.

[0017] In use, the initial position of the flipping device is with the long and short side support columns facing upwards. The coated solar cells are placed onto the solar cell support surface on the long and short side support columns of the flipping device by the unloading robotic arm (either a gripper or a suction cup). (The support surface can be designed with an angle to reduce contact.) One set of support columns corresponds to one solar cell (one set of solar cell support columns can be... Figure 2 The long-side support columns B and C, and the short-side support columns D and E are used. After the robotic arm completes the wafer placement action, it returns to its original position. Then, the positioning gripper 4 is moved a fixed distance by the displacement mechanism 8 so that the positioning gripper 41 is directly above the battery cell. The displacement mechanism 8 can be a linear motor, cylinder, or other device that can drive the positioning gripper 4 to move linearly. The moving distance can be adjusted according to the actual situation. There is a height difference of 5-6mm between the positioning gripper 4 and the support surface on the battery cell support column, thus confining the battery cell within a space. It is worth mentioning that in order to ensure effective support for the flipped battery cell, one battery cell can correspond to a set of four positioning grippers 4, for example... Figure 2The positioning grippers F, G, H, and I are used in the machine. When the positioning gripper 4 moves into position, the rotary motor 3 starts, driving the fixed base 1 and the components on the fixed base 1 to rotate. The battery cells fall onto the positioning clamp 41 of the positioning gripper 4, completing the flipping process. After flipping, the positioning gripper 4 can be controlled to retract and allow the battery cells to fall into the transfer tray. After the transfer tray leaves, the flipping machine rotates counterclockwise, returning to the initial position, completing one flipping cycle.

[0018] In addition, combined Figure 4 To address motor overshoot when sensor failure or abnormal origin parameters occur, one end of the fixed base 1 is connected to the first rotating shaft 2, and the other end of the fixed base 1 is connected to the second rotating shaft 9. A limit block 10 is connected to the second rotating shaft 9, and the limit block 10 rotates around the axis of the second rotating shaft 9. A limit buffer 11 is installed on the rotation path of the limit block 10, so that when the motor overshoots, the limit block 10 can be buffered by contacting the limit buffer 11. The second rotating shaft 9 is also connected to an origin sensor 12, which can be used to identify the origin position.

[0019] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A battery cell flipping device, comprising a fixed base, a rotating shaft, and a rotating motor, wherein the fixed base is connected to the rotating motor via the rotating shaft, characterized in that: The mounting base is provided with multiple sets of battery cell support columns for supporting the bottom of the battery cell and multiple sets of positioning claws. The positioning claws are connected to the displacement mechanism. The end of the positioning claw is provided with a positioning clamp extending in the horizontal direction. When the battery cell is placed on the battery cell support column, the displacement mechanism is used to drive the two oppositely arranged positioning claws to move closer to each other and move the positioning clamp to directly above the battery cell.

2. The battery cell flipping device according to claim 1, characterized in that: When flipped, the fixing seat rotates around the axis of the rotation axis; each group of battery cell support columns includes at least two oppositely arranged short side support columns and at least two oppositely arranged long side support columns. The two opposite long side support columns are distributed along the axis of the rotation axis, and the two opposite short side support columns are distributed perpendicular to the axis of the rotation axis.

3. A battery cell flipping device according to claim 1 or 2, characterized in that: The positioning grippers, which are arranged opposite to each other, are located on both sides of the fixed base. The bottom of the positioning gripper extends to the bottom of the fixed base and is connected to the displacement mechanism through the gripper fixing plate. The gripper fixing plate connects multiple positioning grippers located on the same side.

4. The battery cell flipping device according to claim 1, characterized in that: The rotating shaft includes a first rotating shaft and a second rotating shaft. One end of the fixed base is connected to the rotating motor through the first rotating shaft, and the other end of the fixed base is connected to the second rotating shaft. A limit block is connected to the second rotating shaft. The limit block rotates around the axis of the second rotating shaft as the second rotating shaft rotates. A limit buffer is installed on the rotation path of the limit block.

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