A laser-induced sintering processing device for back contact cells

Abstract

The utility model relates to photovoltaic cell piece technical field discloses a kind of laser-induced sintering processing devices of back contact cell, including workbench, the support leg is fixedly connected in the workbench bottom, the hydraulic cylinder is fixedly connected in the workbench top, the electrode input machine is fixedly connected in the hydraulic cylinder top, the electric guide rail is fixedly connected in the workbench top, the laser processing machine is fixedly connected in the electric guide rail right side, the transparent support plate is provided in the electric guide rail inside, the support frame is fixedly connected in the workbench top, the clamping feeding mechanism is arranged in the support frame bottom, the adjusting positioning mechanism is arranged in the clamping feeding mechanism top, in use process, by the rotation of bidirectional screw rod, it is convenient to realize the adjustment of movable frame position, by motor work, it is convenient to realize the uniform rotation of four groups of connecting frame, by sliding plate movement, it is convenient to realize the adjustment of positioning block position, to meet the positioning use of different sizes of back contact cell.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cell technology, specifically to a laser-induced sintering processing device for back-contact cells. Background Technology

[0002] The contact resistance between the electrodes of crystalline silicon solar cells has a significant impact on the fill factor and conversion efficiency. The lower the contact resistance, the higher the fill factor and conversion efficiency. Reducing contact resistance has become an urgent need for major cell manufacturers. To reduce contact resistance, the applicant utilizes laser-induced sintering technology. This technology uses a laser to excite charge carriers in the cell and promotes the interdiffusion between the metal and the silicon wafer under the action of an external electric field and reverse voltage, thereby obtaining excellent contact characteristics after sintering.

[0003] According to the patent application CN222442180 U, "This application proposes a laser-induced sintering processing device for a back contact battery, including a support device, which includes a support platform. The laser-induced sintering processing device has a processing station, and an electrical input module and a laser processing module are provided corresponding to the processing station. The electrical input module includes a first electrode and a second electrode located below the support surface of the support platform, which are respectively used to electrically connect to the positive electrode and the negative electrode of the back contact battery. The laser processing module is located above the support platform, and the support platform includes a hollow portion for the first electrode and the second electrode to pass through. The laser-induced sintering processing device also includes a positioning station located upstream of the processing station. A visual positioning mechanism is provided at the positioning station located below the support surface of the support platform to obtain the position information of the grid lines, PAD points, or MARK points on the back of the back contact battery, so as to improve the processing accuracy. The laser-induced sintering processing device of this application can improve the photoelectric conversion efficiency of the back contact battery."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In use, when the battery cell is transferred to the support platform corresponding to the loading and positioning station A, the battery cell is attracted by the suction nozzle on the support platform. The vision positioning mechanism under the support platform takes a visual picture of the battery cell and then sends the acquired position data information to the horizontal position adjustment mechanism. In actual use, since the back contact battery processing relies solely on manual placement by the operator, deviations are prone to occur, thus affecting the efficiency of subsequent batch processing. At the same time, when the operator operates the back contact battery during the processing, they are in direct contact with the back contact battery, which can easily lead to accidents. Therefore, it is necessary to improve the laser-induced sintering processing device for back contact batteries to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a laser-induced sintering processing device for back contact batteries to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser-induced sintering processing device for back contact batteries, comprising a worktable, a support leg fixedly connected to the bottom of the worktable, a hydraulic cylinder fixedly connected to the top of the worktable, an electrode input machine fixedly connected to the top of the hydraulic cylinder, an electric guide rail fixedly connected to the top of the worktable, a laser processing machine fixedly connected to the right side of the electric guide rail, a transparent support plate provided inside the electric guide rail, a support frame fixedly connected to the top of the worktable, a clamping and feeding mechanism provided at the bottom of the support frame, and an adjustment and positioning mechanism provided at the top of the clamping and feeding mechanism;

[0008] The clamping and feeding mechanism includes a feeding component and a clamping component, wherein the clamping component is disposed outside the feeding component.

[0009] Preferably, the feeding assembly includes a support base, which is fixedly connected to the bottom of the support frame. A motor is fixedly connected to the right side of the support base, and a connecting block is fixedly connected to the output end of the motor. An installation frame is rotatably connected inside the support frame, and a limit plate is fixedly connected to the bottom of the installation frame. This facilitates the uniform rotation of the four sets of connecting frames, thereby making it easier for workers to place and retrieve them and reducing the risk of use.

[0010] Preferably, a groove is provided at the corresponding position of the limiting plate and the connecting block, and the connecting block is movably connected inside the groove, which facilitates a more stable processing process.

[0011] Preferably, the clamping assembly includes a connecting frame, which is fixedly connected to the outside of the mounting bracket. A placement plate is fixedly connected inside the connecting frame, and a suction cup is fixedly connected to the top of the placement plate. A first connecting platform is fixedly connected to the outside of the connecting frame, and a second connecting platform is fixedly connected to the end of the connecting frame away from the first connecting platform. A bidirectional threaded rod is rotatably connected inside the first connecting platform, and a limit rod is fixedly connected inside the second connecting platform. A movable frame is slidably connected to the outside of the limit rod, which facilitates the adjustment of the position of the movable frame, thereby meeting the clamping requirements for back contact batteries of different sizes.

[0012] Preferably, the movable frame is threadedly connected to the bidirectional threaded rod, the movable frame is slidably connected to the first connecting platform, and the movable frame is slidably connected to the second connecting platform, which facilitates a more stable clamping process.

[0013] Preferably, the adjustment and positioning mechanism includes a limiting frame, which is fixedly connected to the top of the movable frame. A slider is slidably connected inside the limiting frame, and a positioning block is provided outside the slider. A locking bolt is provided between the slider and the positioning block. A sliding rod is fixedly connected to the top of the slider, and a spring is fixedly connected to the bottom of the sliding rod. A sliding plate is fixedly connected to the bottom of the spring, and a locking block is fixedly connected to the bottom of the sliding plate. This facilitates the adjustment and limiting of the positioning block position, thereby meeting the positioning requirements for back contact batteries of different sizes.

[0014] Preferably, the slide plate and the slide rod are slidably connected, and the limiting frame and the corresponding position of the locking block are provided with a groove, and the locking block is inserted into the groove, which makes the positioning process more stable.

[0015] Compared with the prior art, this utility model provides a laser-induced sintering processing device for back contact batteries, which has the following beneficial effects:

[0016] The laser-induced sintering processing device for back contact batteries features a clamping and feeding mechanism. During use, the rotation of a bidirectional threaded rod, in conjunction with a limiting rod, facilitates the adjustment of the movable frame position, thus enabling the clamping of back contact batteries of different sizes. The operation of a motor causes the connecting block to rotate, ensuring the uniform rotation of the four sets of connecting frames. This facilitates subsequent placement and retrieval operations by staff, reducing the risk of use.

[0017] The laser-induced sintering processing device for the back contact battery, through its adjustable positioning mechanism, uses a sliding plate in conjunction with a spring to easily adjust and limit the position of the positioning block, thereby meeting the positioning requirements for back contact batteries of different sizes. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the feeding assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0022] Figure 4This is a schematic diagram of the internal structure of the clamping component of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjustment and positioning mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the adjustment and positioning mechanism of this utility model.

[0025] In the diagram: 1. Workbench; 2. Support leg; 3. Hydraulic cylinder; 4. Electrode input machine; 5. Electric guide rail; 6. Laser processing machine; 7. Transparent support plate; 8. Support frame; 9. Clamping and feeding mechanism; 91. Feeding assembly; 911. Support base; 912. Motor; 913. Connecting block; 914. Mounting frame; 915. Limiting plate; 92. Clamping assembly; 921. Connecting frame; 922. Placement plate; 923. Suction cup; 924. First connecting platform; 925. Second connecting platform; 926. Bidirectional threaded rod; 927. Movable frame; 928. Limiting rod; 10. Adjustment and positioning mechanism; 101. Limiting frame; 102. Slider; 103. Positioning block; 104. Slide rod; 105. Spring; 106. Slide plate; 107. Locking block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0028] To address the issue that existing technologies relying solely on manual placement by workers are prone to errors, thus affecting the efficiency of subsequent batch processing, this embodiment provides a laser-induced sintering processing apparatus for back-contact batteries. Please refer to [link to relevant documentation]. Figure 1-4This utility model provides a technical solution: a laser-induced sintering processing device for back contact batteries, including a worktable 1, a support leg 2 fixedly connected to the bottom of the worktable 1, a hydraulic cylinder 3 fixedly connected to the top of the worktable 1, an electrode input machine 4 fixedly connected to the top of the hydraulic cylinder 3, an electric guide rail 5 fixedly connected to the top of the worktable 1, a laser processing machine 6 fixedly connected to the right side of the electric guide rail 5, a transparent support plate 7 provided inside the electric guide rail 5, a support frame 8 fixedly connected to the top of the worktable 1, a clamping and feeding mechanism 9 provided at the bottom of the support frame 8, and an adjustment and positioning mechanism 10 provided at the top of the clamping and feeding mechanism 9.

[0029] The clamping and feeding mechanism 9 includes a feeding component 91 and a clamping component 92, with the clamping component 92 disposed outside the feeding component 91.

[0030] Furthermore, the feeding assembly 91 includes a support base 911, which is fixedly connected to the bottom of the support frame 8. A motor 912 is fixedly connected to the right side of the support base 911, and a connecting block 913 is fixedly connected to the output end of the motor 912. An installation frame 914 is rotatably connected inside the support frame 8, and a limit plate 915 is fixedly connected to the bottom of the installation frame 914 to facilitate the uniform rotation of the four sets of connecting frames 921, thereby facilitating subsequent placement and retrieval operations by the staff and reducing the risk of use.

[0031] Furthermore, the limiting plate 915 and the connecting block 913 are respectively provided with grooves, and the connecting block 913 is movably connected inside the groove, which makes the processing process more stable.

[0032] Furthermore, the clamping assembly 92 includes a connecting frame 921, which is fixedly connected to the outside of the mounting bracket 914. A placement plate 922 is fixedly connected inside the connecting frame 921, and a suction cup 923 is fixedly connected to the top of the placement plate 922. A first connecting platform 924 is fixedly connected to the outside of the connecting frame 921, and a second connecting platform 925 is fixedly connected to the end of the connecting frame 921 away from the first connecting platform 924. A bidirectional threaded rod 926 is rotatably connected inside the first connecting platform 924, and a limiting rod 928 is fixedly connected inside the second connecting platform 925. A movable frame 927 is slidably connected to the outside of the limiting rod 928, which facilitates the adjustment of the position of the movable frame 927, thereby meeting the clamping and use of back contact batteries of different sizes.

[0033] Furthermore, the movable frame 927 is threadedly connected to the bidirectional threaded rod 926, the movable frame 927 is slidably connected to the first connecting platform 924, and the movable frame 927 is slidably connected to the second connecting platform 925, which facilitates a more stable clamping process. Example

[0034] Based on Embodiment 1, in the prior art, when workers handle the back contact battery during processing, they directly come into contact with the battery, which can easily lead to accidents. Therefore, this utility model provides Embodiment 2 to solve the above-mentioned technical problem. Please refer to Embodiment 2. Figure 5-6 Furthermore, in conjunction with Embodiment 1, the adjusting positioning mechanism 10 includes a limiting frame 101, which is fixedly connected to the top of the movable frame 927. A slider 102 is slidably connected inside the limiting frame 101, and a positioning block 103 is provided outside the slider 102. A locking bolt is provided between the slider 102 and the positioning block 103. A sliding rod 104 is fixedly connected to the top of the slider 102, and a spring 105 is fixedly connected to the bottom of the sliding rod 104. A sliding plate 106 is fixedly connected to the bottom of the spring 105, and a locking block 107 is fixedly connected to the bottom of the sliding plate 106. This facilitates the adjustment and limiting of the position of the positioning block 103, thereby meeting the positioning needs of back contact batteries of different sizes.

[0035] Furthermore, the slide plate 106 is slidably connected to the slide rod 104, and the limit frame 101 and the corresponding position of the locking block 107 are provided with grooves, and the locking block 107 is inserted into the groove, which makes the positioning process more stable.

[0036] In actual operation, when this device is used, the operator first adjusts it according to the size of the back contact battery, selects a suitable positioning block 103, and completes the installation between the positioning block 103 and the slider 102 with the locking bolt. The operator pulls the sliding plate 106, and the movement of the sliding plate 106, in conjunction with the spring 105, causes the locking block 107 to move. The movement of the slider 102 causes the positioning block 103 to move until it reaches the designated positioning position, after which the sliding plate 106 is released. Under the action of the spring 105, the locking block 107 is inserted into the limiting bracket 101, completing the limiting of the slider 102. The operator then places the back contact battery to be processed on the top of the suction cup 923, and the operator rotates the bidirectional threaded rod 926. Rotation of 926, in conjunction with the limiting rod 928, causes the movable frame 927 to move, thereby causing the positioning block 103 to move until it comes into contact with the back contact battery and is limited. After clamping, the motor 912 operates, causing the connecting block 913 to rotate, in conjunction with the limiting plate 915, so that the mounting frame 914 rotates evenly inside the worktable 1, facilitating the even rotation of the mounting frame 914, thereby achieving the even rotation of the four sets of connecting frames 921. The hydraulic cylinder 3 operates, causing the electrode input machine 4 to move and come into contact with the back contact battery. The electric guide rail 5 operates, causing the transparent support plate 7 to move until it comes into contact with the back contact battery. While the electrode input machine 4 operates to apply a reverse voltage, the laser processing machine 6 operates to complete the laser-induced sintering of the battery cell.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A laser-induced sintering processing apparatus for back contact batteries, comprising a worktable (1), characterized in that: The workbench (1) is fixedly connected to a support leg (2) at the bottom, a hydraulic cylinder (3) is fixedly connected to the top of the workbench (1), an electrode input machine (4) is fixedly connected to the top of the hydraulic cylinder (3), an electric guide rail (5) is fixedly connected to the top of the workbench (1), a laser processing machine (6) is fixedly connected to the right side of the electric guide rail (5), a transparent support plate (7) is provided inside the electric guide rail (5), a support frame (8) is fixedly connected to the top of the workbench (1), a clamping and feeding mechanism (9) is provided at the bottom of the support frame (8), and an adjustment and positioning mechanism (10) is provided at the top of the clamping and feeding mechanism (9). The clamping and feeding mechanism (9) includes a feeding component (91) and a clamping component (92), wherein the clamping component (92) is disposed outside the feeding component (91).

2. The laser-induced sintering processing apparatus for a back contact battery according to claim 1, characterized in that: The feeding assembly (91) includes a support base (911), which is fixedly connected to the bottom of the support frame (8). A motor (912) is fixedly connected to the right side of the support base (911), and a connecting block (913) is fixedly connected to the output end of the motor (912). A mounting frame (914) is rotatably connected inside the support frame (8), and a limit plate (915) is fixedly connected to the bottom of the mounting frame (914).

3. The laser-induced sintering processing apparatus for a back contact battery according to claim 2, characterized in that: The limiting plate (915) and the connecting block (913) are provided with grooves at corresponding positions, and the connecting block (913) is movably connected inside the groove.

4. The laser-induced sintering processing apparatus for a back contact battery according to claim 2, characterized in that: The clamping assembly (92) includes a connecting frame (921), which is fixedly connected to the outside of the mounting frame (914). A placement plate (922) is fixedly connected inside the connecting frame (921). A suction cup (923) is fixedly connected to the top of the placement plate (922). A first connecting platform (924) is fixedly connected to the outside of the connecting frame (921). A second connecting platform (925) is fixedly connected to the end of the connecting frame (921) away from the first connecting platform (924). A bidirectional threaded rod (926) is rotatably connected inside the first connecting platform (924). A limit rod (928) is fixedly connected inside the second connecting platform (925). A movable frame (927) is slidably connected to the outside of the limit rod (928).

5. The laser-induced sintering processing apparatus for a back contact battery according to claim 4, characterized in that: The movable frame (927) is threadedly connected to the bidirectional threaded rod (926), the movable frame (927) is slidably connected to the first connecting platform (924), and the movable frame (927) is slidably connected to the second connecting platform (925).

6. The laser-induced sintering processing apparatus for a back contact battery according to claim 4, characterized in that: The adjustment and positioning mechanism (10) includes a limiting frame (101), which is fixedly connected to the top of the movable frame (927). A slider (102) is slidably connected inside the limiting frame (101). A positioning block (103) is provided outside the slider (102). A locking bolt is provided between the slider (102) and the positioning block (103). A sliding rod (104) is fixedly connected to the top of the slider (102). A spring (105) is fixedly connected to the bottom of the sliding rod (104). A sliding plate (106) is fixedly connected to the bottom of the spring (105). A locking block (107) is fixedly connected to the bottom of the sliding plate (106).

7. The laser-induced sintering processing apparatus for a back contact battery according to claim 6, characterized in that: The slide plate (106) is slidably connected to the slide rod (104), and the limit frame (101) and the corresponding position of the locking block (107) are provided with grooves, and the locking block (107) is inserted into the groove.

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