Welding block preheating mechanism
By designing the welding block preheating mechanism and using infrared heating pipes to preheat the welding block, the problems of extended wire heating time and high energy consumption caused by the normal temperature welding block are solved, and a more efficient welding process and a higher success rate are achieved.
Patent Information
- Application Number
- CN202421107303.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-20
AI Technical Summary
In solar cell production, welding blocks at room temperature cause the welding wire to increase the temperature increase time during laser welding, high energy consumption and low welding success rate.
A welding block preheating mechanism is designed, and the welding block is preheated by preheating the bracket and preheating chamber, and infrared heating pipes are used to ensure that the welding block has reached a high temperature state during welding.
By preheating the welding block, the heating time of laser welding is reduced, energy consumption is saved, and the welding success rate is improved.
Smart Images
Figure CN222471167U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery sheet production, in particular to a welding block preheating mechanism. Background Art
[0002] The production of battery cells in solar cells is particularly important. A high-temperature laser welding structure is required for the welding between the battery half-cell and the welding wire. At room temperature, the welding wire needs to be laser welded to the battery half-cell while being fixed by a welding block. Since the welding block is also at room temperature, the high-temperature laser reduces the temperature rise of the welding wire under the action of the room-temperature welding block, which increases the time the welding wire spends in the high-temperature state and results in high energy consumption in laser welding. Utility Model Content
[0003] One purpose of the utility model is to provide a welding block preheating mechanism, which preheats the welding block. After the welding block is placed on the position of the battery half-cell and the welding wire, the laser welding equipment can quickly weld the battery half-cell and the welding wire together without waiting for too much heating time, thereby improving efficiency.
[0004] To achieve this purpose, the utility model adopts the following technical solutions:
[0005] A welding block preheating mechanism comprises a preheating bracket, preheating cavities are respectively installed on both sides of the preheating bracket, a plurality of infrared heating tubes are arranged and distributed at the lower end of the preheating cavity, an air inlet duct is connected to the middle part of the upper end of the preheating cavity, a preheating vertical slide rail is fixed on the preheating bracket along the vertical direction, the preheating cavity slides on the preheating vertical slide rail, a protection box is fixed on the side of the preheating cavity, a preheating control board is installed in the protection box, and the preheating control board is connected to the infrared heating tube signal.
[0006] As a preferred technical solution, preheating cylinders are provided on both sides of the preheating bracket, the preheating cylinders are vertically installed, and the driving ends of the preheating cylinders are connected to the upper end of the preheating cavity.
[0007] As a preferred technical solution, the upper end and the lower end of the preheating bracket are both installed with limiting elastic blocks, and a preheating vertical movement block is fixed on the preheating cavity, and the preheating vertical movement block elastically collides with the limiting elastic block.
[0008] As a preferred technical solution, the side of the preheating cavity is connected to an auxiliary air pipe, the upper end of the preheating cavity is connected to a vertical air pipe, and the auxiliary air pipe is connected to the vertical air pipe.
[0009] As a preferred technical solution, a temperature sensor is fixed on the preheating cavity.
[0010] The beneficial effects of the utility model are: providing a welding block preheating mechanism, which can pre-heat the welding block at high temperature before laser welding the welding wire, welding block and battery half-cell, thereby ensuring a smooth welding process, reducing the heating time during laser welding, saving energy consumption, and improving the welding success rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described in detail below based on the drawings and embodiments.
[0012] Figure 1 It is a schematic diagram of the overall structure of a welding block preheating mechanism described in an embodiment;
[0013] Figure 2 It is a schematic diagram of the structure of the preheating chamber described in the embodiment.
[0014] Figure 1 to Figure 2 middle:
[0015] 1. Preheating bracket; 2. Preheating cavity; 3. Infrared heating tube; 4. Air inlet duct; 5. Preheating vertical slide rail; 6. Protection box; 7. Preheating cylinder; 8. Limiting elastic block; 9. Preheating vertical stop block; 10. Auxiliary air pipe; 11. Vertical air pipe; 12. Temperature sensor. DETAILED DESCRIPTION
[0016] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0017] like Figure 1 to Figure 2 As shown, in this embodiment, a welding block preheating mechanism includes a preheating bracket 1, preheating cavities 2 are respectively installed on both sides of the preheating bracket 1, a plurality of infrared heating tubes 3 are arranged and distributed at the lower end of the preheating cavity 2, an air inlet duct 4 is connected to the middle part of the upper end of the preheating cavity 2, a preheating vertical slide rail 5 is fixed on the preheating bracket 1 along the vertical direction, the preheating cavity 2 slides on the preheating vertical slide rail 5, a protection box 6 is fixed on the side of the preheating cavity 2, a preheating control board is installed in the protection box 6, and the preheating control board is connected to the infrared heating tube 3 signal.
[0018] After the welding block, welding wire and battery half-cell are placed in position, the conveying structure moves the three to the bottom of the preheating cavity 2. The preheating control board in the preheating cavity 2 controls the pre-infrared heating tube 3 to generate heat. The air inlet duct 4 introduces hot air flow downward. The hot air with increased temperature blows from top to bottom onto the welding block at the highest position to preheat the temperature of the welding block. In order to adapt to the production needs of different batches, the preheating cavity 2 can slide along the vertical preheating vertical slide rail 5 as required to change the height of the preheating cavity 2 to meet the distance from the welding block and improve the accuracy of heating.
[0019] Preheating cylinders 7 are provided on both sides of the preheating bracket 1 . The preheating cylinders 7 are installed vertically. The driving ends of the preheating cylinders 7 are connected to the upper ends of the preheating chambers 2 . The up and down movement of the preheating chambers 2 is controlled by the preheating cylinders 7 .
[0020] The upper end and the lower end of the preheating bracket 1 are both installed with a limiting elastic block 8, and a preheating vertical stop block 9 is fixed on the preheating cavity 2. The preheating vertical stop block 9 elastically collides with the limiting elastic block 8. At the upper and lower limit positions, the preheating vertical stop block 9 of the preheating cavity 2 will touch the limiting elastic block 8, and the preheating cylinder 7 will stop moving.
[0021] An auxiliary air pipe 10 is connected to the side of the preheating cavity 2, a vertical air pipe 11 is connected to the upper end of the preheating cavity 2, the auxiliary air pipe 10 is connected to the vertical air pipe 11, a temperature sensor 12 is fixed on the preheating cavity 2, the temperature sensor 12 senses the temperature of the heated gas, and is regulated in real time by the preheating control panel.
[0022] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present utility model and the technical principles used. Within the technical scope disclosed by the present utility model, any changes or substitutions that can be easily thought of by technicians familiar with this technical field should be included in the protection scope of the present utility model.
Claims
1. A solder block preheating mechanism, characterized in that: It includes a preheating bracket, and preheating cavities are respectively installed on both sides of the preheating bracket, a plurality of infrared heating tubes are arranged and distributed at the lower end of the preheating cavity, an air inlet duct is connected to the middle part of the upper end of the preheating cavity, a preheating vertical slide rail is fixed on the preheating bracket along the vertical direction, the preheating cavity slides on the preheating vertical slide rail, a protection box is fixed on the side of the preheating cavity, a preheating control board is installed in the protection box, and the preheating control board is connected to the infrared heating tube signal.
2. A solder block preheating mechanism according to claim 1, characterized in that: Preheating cylinders are provided on both sides of the preheating bracket. The preheating cylinders are installed vertically, and the driving ends of the preheating cylinders are connected to the upper end of the preheating cavity.
3. A solder block preheating mechanism according to claim 1, characterized in that: The upper end of the preheating bracket and the lower end of the preheating bracket are both installed with limiting elastic blocks, and a preheating vertical movement block is fixed on the preheating cavity, and the preheating vertical movement block elastically collides with the limiting elastic block.
4. A solder block preheating mechanism according to claim 1, characterized in that: The side of the preheating cavity is connected with an auxiliary air pipe, the upper end of the preheating cavity is connected with a vertical air pipe, and the auxiliary air pipe is connected with the vertical air pipe.
5. A solder block preheating mechanism according to claim 1, characterized in that: A temperature sensor is fixed on the preheating cavity.