Local heating device for annealing chamber battery piece

Abstract

The utility model relates to a local heating device for an annealing chamber battery piece, and belongs to the technical field of atomic layer deposition equipment. The device comprises a positioning and conveying assembly, a battery piece carrying plate assembly is arranged above the positioning and conveying assembly, a heating lamp tube is arranged above the battery piece carrying plate assembly, a heat insulation lifting assembly is additionally arranged between the heating lamp tube and the battery piece carrying plate assembly, and the battery piece carrying plate assembly is conveyed to a battery piece annealing area through the positioning and conveying assembly; the heat insulation lifting assembly structurally comprises a lifter, and a heat insulation plate is fixed to the output end, moving in the vertical direction, of the lifter. The heat insulation plate is of a plate-shaped structure in which a plurality of avoiding grooves are arranged in an array; and the notch of each avoiding groove is correspondingly matched with the notch of the battery piece of the annealing chamber under the notch. According to the utility model, annealing treatment can be only carried out on a cell slice notch, and the cell conversion efficiency and the photovoltaic performance are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atomic layer deposition equipment, in particular to a local heating device for annealing chamber battery cells. Background Art

[0002] Cell annealing, as a key heat treatment process in the battery manufacturing process, is of great importance. In the production of solar cells, the annealing process plays multiple roles, such as improving electrical performance, enhancing stability, extending service life, and reducing performance degradation. Through annealing, the stress inside the cell can be effectively eliminated, the crystal structure can be optimized, and the photoelectric conversion efficiency of the battery can be improved.

[0003] For half-cut cells, since they already have a high-quality crystalline structure, the annealing requirements are relatively special. During the manufacturing process of this type of cell, the cut part mainly needs to be annealed to eliminate stress concentration and crystal damage that may occur during the cutting process. This requires the annealing equipment to have the function of local heating, which can accurately heat the cell cut without affecting the overall crystal structure of the cell.

[0004] Therefore, it is a social need to develop a local heating device for annealing chamber cells. Utility Model Content

[0005] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a local heating device for the battery cell in the annealing chamber, so that the annealing process can be performed only on the incision of the battery cell without affecting the crystal structure of the battery cell itself.

[0006] The technical solution adopted by the utility model is as follows: a local heating device for battery cells in an annealing chamber, comprising a positioning and conveying assembly, a battery cell carrier assembly is arranged above the positioning and conveying assembly, a heating lamp is arranged above the battery cell carrier assembly, a heat insulation lifting assembly is added between the heating lamp and the battery cell carrier assembly, and the battery cell carrier assembly is conveyed to the battery cell annealing area through the positioning and conveying assembly; the structure of the heat insulation lifting assembly is as follows: it includes an elevator, and a heat insulation board is fixed to the output end of the elevator moving in the vertical direction; the heat insulation board is a plate-like structure with a plurality of avoidance grooves arranged in an array, and the notch of each avoidance groove corresponds to and matches the cutout of the battery cell in the annealing chamber directly below.

[0007] As a further improvement of the above technical solution:

[0008] Preferably, the structure of the positioning and conveying assembly is: including a transmission assembly, an in-position detection assembly, a first limit assembly and a second limit assembly; the transmission assembly is located at the feed inlet and runs toward the battery cell annealing area; the first limit assembly is used for lateral positioning of the battery cell carrier assembly; the second limit assembly is used for positioning the battery cell carrier assembly in the incoming direction.

[0009] Preferably, after the in-position detection component detects the battery cell carrier assembly, the battery cell carrier assembly is positioned by the first limiting component and the second limiting component.

[0010] Preferably, the in-place detection component is configured as a through-beam photoelectric sensor.

[0011] Preferably, the structure of the battery cell carrier assembly is as follows: it includes a carrier body and a battery cell placement box; the battery cell placement box is arranged on the carrier body; the battery cell placement box and the carrier body are positioned by positioning pins.

[0012] Preferably, the cell cutouts arranged in the cell placement box are vertically arranged upwards and filled in sequence.

[0013] Preferably, the heat insulation board is configured as a carbon fiber board.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model has a compact structure. When the in-place detection component detects the battery cell carrier assembly, the first limit component and the second limit component accurately position the battery cell carrier assembly, and then the elevator of the heat insulation lifting component is started, the heat insulation board is lower than the upper surface of the battery cell placement box, the battery cell incision is exposed from the avoidance groove, and the heating lamp starts to anneal the battery cell incision; the whole process is reasonable and easy to operate, and can only perform annealing treatment on the battery cell incision without affecting the crystal structure of the battery cell itself, thereby effectively improving the battery conversion efficiency and photovoltaic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 for Figure 1 Internal view from the side.

[0018] Figure 3 This is a schematic diagram of the structure of the battery cell carrier assembly of the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the heat insulation board of the utility model.

[0020] Among them: 1. Positioning and conveying assembly; 2. Cell carrier assembly; 3. Heat insulation lifting assembly; 4. Heating lamp tube;

[0021] 101, transmission component; 102, in-place detection component; 103, first limit component; 104, second limit component;

[0022] 201, carrier body; 202, battery cell placement box; 203, positioning pin;

[0023] 301. Elevator; 302. Heat insulation board. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model is described below in conjunction with the accompanying drawings.

[0025] like Figure 1 to Figure 4 As shown, the local heating device for annealing chamber battery cells of this embodiment includes a positioning and conveying component 1, a battery cell carrier assembly 2 is arranged above the positioning and conveying component 1, a heating lamp tube 4 is arranged above the battery cell carrier assembly 2, and a heat insulation lifting component 3 is added between the heating lamp tube 4 and the battery cell carrier assembly 2, and the battery cell carrier assembly 2 is conveyed to the battery cell annealing area by the positioning and conveying component 1; the structure of the heat insulation lifting component 3 is: including an elevator 301, and an insulation board 302 is fixed at the output end of the elevator 301 moving in the vertical direction; the insulation board 302 is a plate-like structure with a plurality of avoidance grooves arranged in an array, and the notch of each avoidance groove corresponds to and matches the cutout of the battery cell in the annealing chamber directly below.

[0026] In this embodiment, the structure of the positioning and conveying component 1 is: including a transmission component 101, an in-place detection component 102, a first limiting component 103 and a second limiting component 104; the transmission component 101 is located at the feed port and runs toward the battery cell annealing area; the first limiting component 103 is used for lateral positioning of the battery cell carrier component 2; the second limiting component 104 is used for positioning the incoming direction of the battery cell carrier component 2.

[0027] In this embodiment, after the in-position detection component 102 detects the battery cell carrier assembly 2 , the first limiting component 103 and the second limiting component 104 are used to position the battery cell carrier assembly 2 .

[0028] In this embodiment, the in-position detection component 102 is configured as a through-beam photoelectric sensor.

[0029] In this embodiment, the structure of the battery cell carrier assembly 2 is as follows: it includes a carrier body 201 and a battery cell placement box 202; the battery cell placement box 202 is arranged on the carrier body 201;

[0030] In this embodiment, the battery cell placement box 202 and the carrier body 201 are positioned by positioning pins 203 .

[0031] In this embodiment, the cell cutouts arranged in the cell placement box 202 are vertically arranged upwards and filled in sequence.

[0032] In this embodiment, illustratively, the heat insulation board 302 is configured as a carbon fiber board.

[0033] In actual work, the working method of the utility model is as follows:

[0034] Step 1: The cell carrier assembly 2 is transferred to the cell annealing area through the positioning and conveying assembly 1;

[0035] Step 2: After the in-position detection component 102 detects the battery cell carrier component 2, the first limiting component 103 and the second limiting component 104 are used to precisely position the battery cell carrier component 2;

[0036] Step 3: Then the lifter 301 of the heat insulation lifting assembly 3 works to lower the heat insulation board 302 to below the upper surface of the battery cell placement box 202, and the battery cell cutout is exposed from the avoidance groove of the heat insulation board 302;

[0037] Step 4: The heating lamp 4 starts heating to perform annealing of the cell cutout.

[0038] The utility model has reasonable structure, simple working process, low requirement on operators, and can only perform annealing treatment on the cutout of the battery cell without affecting the crystal structure of the battery cell itself.

[0039] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A local heating device for a cell in an annealing chamber, characterized in that: It comprises a positioning and conveying assembly (1), a battery cell carrier assembly (2) is arranged above the positioning and conveying assembly (1), a heating lamp tube (4) is arranged above the battery cell carrier assembly (2), a heat insulation lifting assembly (3) is added between the heating lamp tube (4) and the battery cell carrier assembly (2), and the battery cell carrier assembly (2) is conveyed to a battery cell annealing area via the positioning and conveying assembly (1); The structure of the heat insulation lifting assembly (3) is as follows: it comprises a lift (301), and a heat insulation board (302) is fixed to the output end of the lift (301) moving in the vertical direction; The heat insulation plate (302) is a plate-like structure with a plurality of avoidance grooves arranged in an array, and the notch of each avoidance groove corresponds to and matches the cutout of the battery cell in the annealing chamber directly below.

2. The local heating device for annealing chamber cells according to claim 1, characterized in that: The structure of the positioning transmission component (1) is as follows: it comprises a transmission component (101), an in-position detection component (102), a first position limiting component (103) and a second position limiting component (104); The transmission component (101) is located at the feed inlet and moves toward the cell annealing area; The first limiting assembly (103) is used for lateral positioning of the battery cell carrier assembly (2); The second limiting assembly (104) is used for positioning the incoming direction of the battery cell carrier assembly (2).

3. The local heating device for annealing chamber cell according to claim 2, characterized in that: After the in-position detection component (102) detects the battery cell carrier component (2), the battery cell carrier component (2) is positioned through the first limiting component (103) and the second limiting component (104).

4. The local heating device for annealing chamber cells according to claim 3, characterized in that: The in-position detection component (102) is configured as a through-beam photoelectric sensor.

5. The local heating device for annealing chamber cell according to claim 1, characterized in that: The structure of the battery cell carrier assembly (2) is as follows: comprising a carrier body (201) and a battery cell placement box (202); The battery cell placement box (202) is arranged on the carrier body (201); The battery cell placement box (202) and the carrier body (201) are positioned via positioning pins (203).

6. The local heating device for annealing chamber cells according to claim 5, characterized in that: The cell cutouts arranged in the cell placement box (202) are vertically arranged upwards and in sequence.

7. The local heating device for annealing chamber cells according to claim 1, characterized in that: The heat insulation board (302) is configured as a carbon fiber board.

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