Amorphous silicon cell laser cutting model based on 3D printing

Abstract

The utility model discloses an amorphous silicon cell laser cutting model based on 3D printing, which comprises a substrate model layer, a TCO model layer, an absorption model layer and an electrode model layer which can be stacked or separated in sequence from bottom to top, the TCO model layer is provided with a first groove and a second groove, and is respectively provided with a first TCO layer clamping piece and a second TCO layer clamping piece which can be separated in a clamping manner; the absorption model layer is provided with a third groove, a fourth groove and a fifth groove which are respectively provided with a first absorption layer clamping piece, a second absorption layer clamping piece and a third absorption layer clamping piece in a clamping mode, the bottom face of the absorption model layer is provided with a first protruding block, the front side face of the electrode model layer is provided with a sixth groove and a seventh groove which are respectively provided with a first electrode layer clamping piece and a second electrode layer clamping piece in a clamping mode, and the bottom face of the electrode model layer is provided with a second protruding block. The first protruding block can be inserted into the first groove, the second protruding block can be inserted into the third groove, the sixth groove and the fourth groove correspond to each other in the vertical direction, and the seventh groove, the fifth groove and the second groove correspond to each other in the vertical direction. According to the utility model, the four-time cutting structure of the amorphous silicon cell can be visually displayed through disassembly and assembly.

Description

Technical Field

[0001] The utility model relates to a laser cutting model of an amorphous silicon battery, belonging to the technical field of demonstration tools. Background Art

[0002] Amorphous silicon thin-film solar cells are suitable for various applications and are a type of solar cell with broad development prospects. In the production process of amorphous silicon thin-film solar cells, four-time laser cutting is a very important and key step, and all students learning this knowledge must master it. In the existing teaching process of amorphous silicon thin-film batteries, it is mainly taught in the following ways: the first is through text description and picture display, the second is simulation in simulation software, and the third is teaching through video demonstration. These methods are difficult to effectively show the original appearance of the four-time laser cutting, causing certain difficulties to students' learning. Content of the Utility Model

[0003] Aiming at the above-mentioned defects of the prior art, the task of the utility model is to provide a laser cutting model of an amorphous silicon battery based on 3D printing, aiming to intuitively show the four-cut structure of the amorphous silicon battery.

[0004] The technical solution of the utility model is as follows: a laser cutting model of an amorphous silicon battery based on 3D printing, including a substrate model layer, a TCO model layer, an absorption model layer, and an electrode model layer that can be stacked or separated in sequence from bottom to top. The front side of the TCO model layer is provided with a plurality of first grooves and second grooves that penetrate up and down. The second grooves are located at both ends of the TCO model layer. A separable first TCO layer card is clamped in the first groove, and a separable second TCO layer card is clamped in the second groove. The front side of the absorption model layer is provided with a plurality of third grooves, fourth grooves, and fifth grooves that penetrate up and down. The fifth grooves are located at both ends of the absorption model layer. The bottom surface of the absorption model layer is provided with a downward convex first bump. A separable first absorption layer card is clamped in the third groove, a separable second absorption layer card is clamped in the fourth groove, and a separable third absorption layer card is clamped in the fifth groove. The front side of the electrode model layer is provided with a plurality of sixth grooves and seventh grooves that penetrate up and down. The seventh grooves are arranged at both ends of the electrode model layer. The bottom surface of the electrode model layer is provided with a downward convex second bump. A separable first electrode layer card is clamped in the sixth groove, and a separable second electrode layer card is clamped in the seventh groove;

[0005] When the absorption model layer is stacked on the TCO model layer, the first bump is inserted into the first groove, and the fifth groove corresponds to the second groove in the up-and-down position; when the electrode model layer is stacked on the absorption model layer, the second bump is inserted into the third groove, the sixth groove corresponds to the fourth groove in the up-and-down position, and the seventh groove corresponds to the fifth groove in the up-and-down position.

[0006] Further, the front sides of the substrate model layer, the TCO model layer, the absorption model layer, and the electrode model layer are flush with each other.

[0007] Further, the front sides of the substrate model layer, the TCO model layer, the absorption model layer, and the electrode model layer have different colors. Each model layer can be clearly distinguished by different colors, which is more intuitive.

[0008] Further, a slot and a plug that cooperate with each other are provided on the top surface of the substrate model layer and the bottom surface of the TCO model layer.

[0009] Further, a slot and a plug that cooperate with each other are provided on the bottom of the second groove and the back side of the second TCO layer card, a slot and a plug that cooperate with each other are provided on the bottom of the fifth groove and the back side of the third absorption layer card, and a slot and a plug that cooperate with each other are provided on the bottom of the seventh groove and the back side of the second electrode layer card.

[0010] Further, the second groove, the fifth groove, and the seventh groove have equal depths and equal widths. It is convenient to visually display that the three-layer structure is formed by one-time cutting.

[0011] Further, the fourth groove and the sixth groove have equal depths and equal widths. It is convenient to visually display that the double-layer structure is formed by one-time cutting.

[0012] Further, protrusions are provided on the front sides of the first TCO layer card, the second TCO layer card, the first absorption layer card, the second absorption layer card, the third absorption layer card, the first electrode layer card, and the second electrode layer card.

[0013] The advantages of the present utility model compared with the prior art are as follows:

[0014] The model of the present utility model can help teachers teach the key and difficult knowledge points of "four-time laser cutting" more intuitively, vividly, and specifically, can strengthen students' deep understanding of this knowledge point, and thus can effectively increase the interest of classroom teaching and effectively improve the quality of classroom teaching.

[0015] The model design is intuitive and vivid, which can stimulate learning interest. Different colors are used to distinguish different layers of the model. During the teaching process, the teacher can explain each layer through different colors, and then demonstrate the assembly and cutting of each layer, enabling students to have an intuitive and specific feeling about the knowledge points of four laser cuttings.

[0016] The model structure is simple, facilitating disassembly and assembly. On the one hand, the teacher can easily explain and demonstrate to students by disassembling and assembling the model. At the same time, students can also operate and practice by themselves, thereby further deepening their understanding of the knowledge points. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the 3D printing-based amorphous silicon battery laser cutting model of the embodiment.

[0018] Figure 2 It is a schematic structural diagram of the substrate model layer.

[0019] Figure 3 It is a schematic structural diagram of the TCO model layer.

[0020] Figure 4 It is a schematic structural diagram of the absorption model layer.

[0021] Figure 5 It is a schematic structural diagram of the electrode model layer.

[0022] Figure 6 It is a schematic dorsal structure diagram of the second TCO layer card. Detailed Implementation Modes

[0023] The present utility model will be further described below in conjunction with embodiments, but it is not intended to limit the present utility model.

[0024] Please refer to Figures 1 to 5 As shown, the 3D printing-based amorphous silicon battery laser cutting model of the present utility model includes four layers: a substrate model layer 1, a TCO model layer 2, an absorption model layer 3, and an electrode model layer 4. The substrate model layer 1, the TCO model layer 2, the absorption model layer 3, and the electrode model layer 4 can be stacked from bottom to top to simulate the glass substrate, TCO, absorption layer, and back electrode of the amorphous silicon battery. A first TCO layer card 201 and a second TCO layer card 202 are clamped on the TCO model layer 2. A first absorption layer card 301, a second absorption layer card 302, and a third absorption layer card 303 are clamped on the absorption model layer 3. A first electrode layer card 401 and a second electrode layer card 402 are clamped on the electrode model layer 4. All the foregoing model layers and cards can be made by 3D printing. The structures of each layer are introduced below.

[0025] The substrate model layer 1 has a length of 190 mm, a width of 25 mm, and a height of 15 mm. In order to enable the TCO model layer 2 to be stably stacked on the substrate model layer 1, a plurality of slots 101 are provided on the top surface of the substrate model layer 1.

[0026] The TCO model layer 2 has a length of 190 mm, a width of 25 mm, and a height of 12 mm. A plurality of first grooves 203 and second grooves 204 that penetrate up and down are provided on the front side of the TCO model layer 2. Among them, the first grooves 203 are arranged at equal intervals on the front side of the TCO model layer 2, and the second grooves 204 are located at both ends of the TCO model layer 2. A plug 205 that mates with the slots on the top surface of the substrate model layer 1 is provided on the bottom surface of the TCO model layer 2.

[0027] The left - right width (corresponding to the length of the TCO model layer 2) of the first groove 203 is 5 mm, and the depth (corresponding to the width of the TCO model layer 2) is 12 mm, simulating the structure formed by the first cut. Correspondingly, the first TCO layer card 201 is a cuboid structure with a length of 5 mm, a width of 12 mm, and a height of 12 mm. A protrusion 206 is provided on its front side to facilitate the removal of the first TCO layer card 201 from the first groove 203.

[0028] The left - right width (corresponding to the length of the TCO model layer 2) of the second groove 204 is 10 mm, and the depth (corresponding to the width of the TCO model layer 2) is 12 mm, simulating the structure formed by the fourth cut. Correspondingly, the second TCO layer card 202 is a cuboid structure with a length of 10 mm, a width of 12 mm, and a height of 12 mm. A protrusion 207 is provided on its front side to facilitate the removal of the second TCO layer card 202 from the second groove 204. As Figure 6 shown, a slot 204a is provided at the bottom of the second groove 204, and a plug 202a that mates with the slot 204a at the bottom of the second groove 204 is provided on the back side of the second TCO layer card 202, so that the second TCO layer card 202 can be kept on the TCO model layer 2 when it does not need to be removed.

[0029] The absorption model layer 3 has a length of 190 mm, a width of 25 mm, and a height of 9 mm. A plurality of third grooves 304, fourth grooves 305, and fifth grooves 306 that penetrate up and down are provided on the front side of the absorption model layer 3. Among them, the third grooves 304 and the fourth grooves 305 are arranged in pairs at equal intervals on the front side of the absorption model layer 3, and the fifth grooves 306 are located at both ends of the absorption model layer 3. A first protrusion 307 that mates with the first groove 203 is provided on the bottom surface of the absorption model layer 3, that is, the first protrusion 307 is a cuboid structure with a length of 5 mm, a width of 12 mm, and a height of 12 mm. After the absorption model layer 3 is stacked on the TCO model layer 2, the fifth grooves 306 and the second grooves 204 are in corresponding up - down positions.

[0030] The left - right width (corresponding to the length of the absorption model layer 3) of the third groove 304 and the fourth groove 305 is 5 mm, and the depth (corresponding to the width of the absorption model layer 3) is 12 mm, simulating the structure formed by the second and third cuts. The corresponding first absorption layer card 301 and second absorption layer card 302 are cuboid structures with a length of 5 mm, a width of 12 mm, and a height of 9 mm. The front side of them is provided with a protrusion 308 to facilitate taking out the first absorption layer card 301 from the third groove 304 and taking out the second absorption layer card 302 from the fourth groove 305.

[0031] The left - right width (corresponding to the length of the absorption model layer 3) of the fifth groove 306 is 10 mm, and the depth (corresponding to the width of the absorption model layer 3) is 12 mm, simulating the structure formed by the fourth cut. Correspondingly, the third absorption layer card 303 is a cuboid structure with a length of 10 mm, a width of 12 mm, and a height of 9 mm. The front side of it is provided with a protrusion 309 to facilitate taking out the third absorption layer card 303 from the fifth groove 306. The bottom of the fifth groove 306 is provided with a slot 306a, and the back side of the third absorption layer card 303 is provided with a plug (the structure is the same as the second TCO layer card 202) that matches the slot 306a at the bottom of the fifth groove 306, so that the third absorption layer card 303 can be kept on the absorption model layer 3 when it does not need to be taken out.

[0032] The electrode model layer 4 has a length of 190 mm, a width of 25 mm, and a height of 9 mm. The front side of the electrode model layer 4 is provided with a number of sixth grooves 403 and seventh grooves 404 that penetrate up and down. Among them, the sixth grooves 403 are arranged at equal intervals on the front side of the electrode model layer 4, and the seventh grooves 404 are located at both ends of the electrode model layer 4. The bottom surface of the electrode model layer 4 is provided with a second convex block 405 that matches the third groove 304, that is, the second convex block 405 is a cuboid structure with a length of 5 mm, a width of 12 mm, and a height of 9 mm. After the electrode model layer 4 is stacked on the absorption model layer 3, the sixth grooves 403 and the third grooves 304 are in corresponding up - down positions, and at the same time, the seventh grooves 404 and the fifth grooves 306 are in corresponding up - down positions.

[0033] The left - right width (corresponding to the length of the electrode model layer 4) of the sixth groove 403 is 5 mm, and the depth (corresponding to the width of the electrode model layer 4) is 12 mm, simulating the structure formed by the third cut. The corresponding first electrode layer card 401 is a cuboid structure with a length of 5 mm, a width of 12 mm, and a height of 9 mm. The front side of it is provided with a protrusion 406 to facilitate taking out the first electrode layer card 401 from the sixth groove 403.

[0034] The left and right widths of the seventh groove 404 (corresponding to the length of the electrode model layer 4) are 10 mm, and the depth (corresponding to the width of the electrode model layer 4) is 12 mm, simulating the structure formed by the fourth cutting. Accordingly, the second electrode layer clamp 402 is a rectangular parallelepiped structure with a length of 10 mm, a width of 12 mm, and a height of 9 mm, and a protrusion 407 is provided on its front side to facilitate the removal of the second electrode layer clamp 402 from the seventh groove 404.

[0035] A slot 404a is provided at the bottom of the seventh groove 404, and a plug (with the same structure as the second TCO layer card 202) is provided on the back side of the second electrode layer card 402 to match the slot 404a at the bottom of the seventh groove 404, so that the second electrode layer card 402 can be kept on the electrode model layer 4 when it does not need to be removed.

[0036] As a preferred embodiment, after the above layers are stacked on each other, the front sides of the substrate model layer 1, the TCO model layer 2, the absorption model layer 3 and the electrode model layer 4 are flush with each other. At the same time, the front sides of the substrate model layer 1, the TCO model layer 2, the absorption model layer 3 and the electrode model layer 4 present different colors. The different colors can clearly distinguish the model layers, which is more intuitive.

[0037] The process of the above demonstration operation based on the 3D printed amorphous silicon cell laser cutting model is as follows:

[0038] A TCO model layer 2 with a first TCO layer clip 201 and a second TCO layer clip 202 is placed on the substrate model layer 1 to simulate the deposition of a TCO layer on a glass substrate. Then the first TCO layer clip 201 is removed to expose the first groove 203 to simulate the first laser cutting (cutting the TCO layer).

[0039] An absorption model layer 3 with a first absorption layer clamp 301, a second absorption layer clamp 302 and a third absorption layer clamp 303 is placed on the TCO model layer to simulate the deposition of the absorption layer. Then the first absorption layer clamp 301 is removed to expose the third groove 304 to simulate the second laser cutting (cutting the absorption layer).

[0040] An electrode model layer 4 with a first electrode layer clamp 401 and a second electrode layer clamp 402 is placed on the absorption model layer 3 to simulate the deposition of a back electrode. Then the first electrode layer clamp 401 and the second absorption layer clamp 302 are removed to expose the sixth groove 403 and the fourth groove 305 to simulate the third laser cutting (cutting the back electrode layer and the absorption layer).

[0041] Finally, the second TCO layer clip 202, the third absorption layer clip 303 and the second electrode layer clip 402 are removed to expose the second groove 204, the fifth groove 306 and the seventh groove 404, and the fourth laser cutting (cutting the back electrode layer, absorption layer and TCO layer) is simulated. The final result is as follows: Figure 1As shown

Claims

1. A 3D printed amorphous silicon cell laser cutting model, characterized in that: It comprises a substrate model layer, a TCO model layer, an absorption model layer and an electrode model layer which can be stacked or separated from bottom to top in sequence, the front side surface of the TCO model layer is provided with a plurality of first grooves and second grooves which are passed through from top to bottom, the second groove is located at the two ends of the TCO model layer, a detachable first TCO layer clamp is clamped in the first groove, a detachable second TCO layer clamp is clamped in the second groove, a plurality of third grooves, fourth grooves and fifth grooves which are passed through from top to bottom are provided on the front side surface of the absorption model layer, the fifth groove is located at the two ends of the absorption model layer, a downwardly convex first convex block is provided on the bottom surface of the absorption model layer, a detachable first absorption layer clamp is clamped in the third groove, a detachable second absorption layer clamp is clamped in the fourth groove, a detachable third absorption layer clamp is clamped in the fifth groove, a plurality of sixth grooves and seventh grooves which are passed through from top to bottom are provided on the front side surface of the electrode model layer, the seventh groove is arranged at the two ends of the electrode model layer, a downwardly convex second convex block is provided on the bottom surface of the electrode model layer, a detachable first electrode layer clamp is clamped in the sixth groove, and a detachable second electrode layer clamp is clamped in the seventh groove; When the absorption model layer is stacked on the TCO model layer, the first protrusion is inserted into the first groove, and the fifth groove corresponds to the second groove in upper and lower positions; when the electrode model layer is stacked on the absorption model layer, the second protrusion is inserted into the third groove, the sixth groove corresponds to the fourth groove in upper and lower positions, and the seventh groove corresponds to the fifth groove in upper and lower positions.

2. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: The front sides of the substrate model layer, the TCO model layer, the absorption model layer and the electrode model layer are flush with each other.

3. The amorphous silicon cell laser cutting model based on 3D printing according to claim 2 is characterized in that: The front sides of the substrate model layer, the TCO model layer, the absorption model layer and the electrode model layer present different colors.

4. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: The top surface of the substrate model layer and the bottom surface of the TCO model layer are provided with slots and plugs that fit and snap into each other.

5. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: The bottom of the second groove and the back side of the second TCO layer card are provided with a slot and a plug that fit together, the bottom of the fifth groove and the back side of the third absorption layer card are provided with a slot and a plug that fit together, and the bottom of the seventh groove and the back side of the second electrode layer card are provided with a slot and a plug that fit together.

6. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: The second groove, the fifth groove and the seventh groove have the same depth and the same width.

7. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: Furthermore, the fourth groove and the sixth groove have equal depth and equal width.

8. The amorphous silicon cell laser cutting model based on 3D printing according to claim 1 is characterized in that: The front sides of the first TCO layer card component, the second TCO layer card component, the first absorption layer card component, the second absorption layer card component, the third absorption layer card component, the first electrode layer card component and the second electrode layer card component are all provided with protrusions.

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