Battery piece sorting equipment

Abstract

Battery piece sorting equipment comprises a plurality of high-frequency sorting mechanisms and a plurality of low-frequency sorting mechanisms which are arranged in the conveying direction of battery pieces, the high-frequency sorting mechanisms are used for sorting high-frequency battery pieces, the low-frequency sorting mechanisms are used for sorting low-frequency battery pieces, and the high-frequency sorting mechanisms sort the battery pieces prior to the low-frequency sorting mechanisms. The number of the high-frequency sorting mechanisms is larger than that of the low-frequency sorting mechanisms. A conveying mechanism used for conveying battery pieces is arranged between the high-frequency sorting mechanism and the low-frequency sorting mechanism. Compared with the prior art, the high-frequency battery pieces are sorted through the arranged high-frequency sorting mechanisms, the low-frequency battery pieces sorted by the high-frequency sorting mechanisms are sorted through the arranged low-frequency battery pieces, and the number of the high-frequency sorting mechanisms is larger than that of the low-frequency sorting mechanisms, so that the number of the mechanisms is reduced, and then the occupied area is reduced; and meanwhile, sorting is conducted through the high-frequency sorting mechanism and the low-frequency sorting mechanism, and the sorting efficiency is improved.

Description

Technical Field

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

[0002] A photovoltaic (PV) cell is a semiconductor material module that converts sunlight into electrical energy. It is one of the key components of a solar photovoltaic power generation system. The working principle of a PV cell is based on the photoelectric effect, which means that when light shines on the surface of a material, the energy of the photons is transferred to electrons in the material, allowing the electrons to gain enough energy to jump to the conduction band and form an electric current.

[0003] The manufacturing of photovoltaic cells involves multiple processes. Fluctuations in the manufacturing process lead to variations in the final electrical performance and appearance of the cells, necessitating sorting of the finished cells. High-frequency cells have higher power generation efficiency, while low-frequency cells have lower efficiency. Currently, automated sorting equipment in the photovoltaic industry primarily uses stacked feeding boxes for cell classification. However, for BC (Browser and Cell B) cells, this stacked feeding box method carries the risk of scratching the cells during the stacking process.

[0004] To address the aforementioned issues, Chinese Patent Application No. 202322753522.6 discloses a sorting device. This sorting device includes a production line for conveying battery cells along a first direction, multiple sorting units arranged sequentially along the first direction and located on the side of the production line, and battery cell loading and transport modules corresponding one-to-one with each sorting unit. Each sorting unit includes a first basket lifting unit and at least one telescopic transport module. The first basket lifting unit includes a basket lifting device. The telescopic transport module is located on one side of the basket lifting device, and the battery cell loading and transport module is located above the production line and the telescopic transport module. Chinese Patent Application No. 202210131663.1 discloses a dual-cell solar cell sorting machine. The disclosed solar cell sorting machine includes: a frame, on which two parallel conveying devices are provided, and multiple material boxes are set on the frame by positioning components. The multiple material boxes are evenly distributed in multiple rows along the conveying direction of the conveying devices and in multiple columns evenly distributed on both sides of the two conveying devices. A conveying device is provided above each row of material boxes. The conveying device is used to transport the solar cells transported on the two conveying devices to the designated material boxes respectively.

[0005] The aforementioned prior art sorts the solar cells by setting up multiple sorting units. Each sorting unit is equipped with a corresponding solar cell loading and transporting module to transport the sorted solar cells. At the same time, each sorting unit is equipped with a basket lifting unit and a telescopic transporting module. The sorting equipment has many mechanisms, occupies a large area, and is relatively cumbersome in the sorting and transporting process, which also increases the investment cost of the production workshop. Utility Model Content

[0006] The present invention aims to overcome the defects in the prior art and provide a battery cell sorting device with fewer mechanisms, smaller footprint, and simpler and faster sorting process.

[0007] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a battery cell sorting device, comprising a plurality of high-frequency sorting mechanisms and a plurality of low-frequency sorting mechanisms arranged along the battery cell conveying direction, wherein the plurality of high-frequency sorting mechanisms are used to sort high-frequency battery cells, the plurality of low-frequency sorting mechanisms are used to sort low-frequency battery cells, and the high-frequency sorting mechanisms take priority over the low-frequency sorting mechanisms in sorting battery cells, and the number of high-frequency sorting mechanisms is greater than the number of low-frequency sorting mechanisms; a transmission mechanism for conveying battery cells is provided between the high-frequency sorting mechanisms and the low-frequency sorting mechanisms.

[0008] As a preferred embodiment of this utility model, the high-frequency sorting mechanism includes a first conveying structure for conveying battery cells and a high-frequency sorting structure for sorting high-frequency battery cells.

[0009] As a preferred embodiment of this utility model, the low-frequency sorting mechanism includes a second conveying structure for conveying battery cells and a low-frequency sorting structure for sorting low-frequency battery cells.

[0010] As a preferred embodiment of this utility model, the transmission mechanism is a single-cell transmission mechanism, which is disposed between the high-frequency sorting mechanism and the low-frequency sorting mechanism to transmit a single cell from the high-frequency sorting mechanism to the low-frequency sorting mechanism. The single-cell transmission mechanism includes a conveyor belt and a drive component for driving the conveyor belt.

[0011] As a preferred embodiment of this utility model, the transmission mechanism is a basket transmission mechanism, which is arranged between the high-frequency sorting mechanism and the low-frequency sorting mechanism to transfer a number of battery cells as a whole from the high-frequency sorting mechanism to the low-frequency sorting mechanism.

[0012] As a preferred embodiment of the present invention, the flower basket conveying mechanism includes a flower basket conveying channel and a plurality of flower basket lifts disposed on the flower basket conveying channel. The flower basket conveying mechanism is connected to a docking channel, and the flower basket conveying channel is docked to the docking channel.

[0013] As a preferred embodiment of this utility model, the docking channel includes a first docking channel, which is located at the high-frequency sorting mechanism and is used to transport high-frequency battery cells.

[0014] As a preferred embodiment of this utility model, the docking channel includes a second docking channel and a third docking channel. The second docking channel is located between the high-frequency sorting mechanism and the flower basket transmission channel, and the third docking channel is located between the flower basket transmission channel and the low-frequency sorting mechanism.

[0015] As a preferred embodiment of the present invention, the flower basket transmission mechanism further includes a transfer flower basket for conveying low-frequency battery cells to be sorted to the low-frequency sorting mechanism, and several flower basket lifts are respectively arranged between the second docking channel and the flower basket transmission channel and between the flower basket transmission channel and the third docking channel for lifting the transfer flower basket.

[0016] As a preferred embodiment of this utility model, the docking channel includes a fourth docking channel, which is located at the low-frequency sorting mechanism and is used to transport low-frequency battery cells.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Several high-frequency sorting mechanisms are used to sort high-frequency solar cells, and several low-frequency solar cells are used to sort the low-frequency solar cells sorted by the high-frequency sorting mechanisms. The number of high-frequency sorting mechanisms is greater than the number of low-frequency sorting mechanisms, thereby reducing the number of mechanisms, the floor space, and the cost. At the same time, sorting is carried out by high-frequency and low-frequency sorting mechanisms separately, which improves the sorting efficiency. In addition, the low-frequency solar cells from the high-frequency sorting mechanisms are transported to the low-frequency sorting mechanisms for sorting by a transmission mechanism, which improves the efficiency of solar cell transportation and thus improves the sorting efficiency of the low-frequency sorting mechanisms.

[0019] 2. Furthermore, by using a single-cell conveying mechanism to directly transport the sorted solar cells, the conveying efficiency of the solar cells is improved, saving time and costs.

[0020] 3. Furthermore, the sorted solar cells are transported by a basket-type transport mechanism. During transport, the solar cells are loaded into baskets and transported as a whole, thereby achieving overall transport of the solar cells and improving transport efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the high-frequency sorting mechanism of this utility model;

[0023] Figure 3This is a schematic diagram of the low-frequency sorting mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of a single-chip transmission mechanism;

[0025] Figure 5 This is a schematic diagram of the flower basket transport mechanism.

[0026] Reference numerals: 1. High-frequency sorting mechanism; 101. First conveying structure; 102. High-frequency sorting structure; 2. Low-frequency sorting mechanism; 201. Second conveying structure; 202. Low-frequency sorting structure; 3. Transmission mechanism; 301. Single-piece transmission mechanism; 3011. Conveyor belt; 3012. Drive assembly; 302. Flower basket transmission mechanism; 3021. Flower basket transmission channel; 3022. Flower basket lift; 4. Transfer flower basket; 5. Docking channel; 501. First docking channel; 502. Second docking channel; 503. Third docking channel; 504. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1-5 As shown, a battery cell sorting device includes a plurality of high-frequency sorting mechanisms 1 and a plurality of low-frequency sorting mechanisms 2 arranged along the battery cell conveying direction. The plurality of high-frequency sorting mechanisms 1 are used to sort high-frequency battery cells, and the plurality of low-frequency sorting mechanisms 2 are used to sort low-frequency battery cells. The high-frequency sorting mechanisms 1 take priority over the low-frequency sorting mechanisms 2 in sorting battery cells, and the number of high-frequency sorting mechanisms 1 is greater than the number of low-frequency sorting mechanisms 2. A transmission mechanism 3 for conveying battery cells is provided between the high-frequency sorting mechanisms 1 and the low-frequency sorting mechanisms 2.

[0029] Furthermore, several high-frequency sorting mechanisms 1 are arranged along the conveying direction of the solar cells to sort high-frequency solar cells, and several low-frequency sorting mechanisms 2 are used to sort low-frequency solar cells. At the same time, the high-frequency solar cells sorted by the high-frequency sorting mechanisms 1 are transported out of the equipment, and the low-frequency solar cells to be sorted from the high-frequency sorting mechanisms 1 are transported to the low-frequency sorting mechanisms 2 through the transmission mechanism 3 for sorting. The high-frequency sorting mechanisms 1 take priority over the low-frequency sorting mechanisms 2 for sorting. The number of high-frequency sorting mechanisms 1 is greater than the number of low-frequency sorting mechanisms 2, thereby reducing the number of mechanisms, reducing the floor space, and reducing costs. At the same time, sorting by the high-frequency sorting mechanisms 1 and the low-frequency sorting mechanisms 2 is carried out separately, which improves the sorting efficiency.

[0030] The high-frequency sorting mechanism 1 includes a first conveying structure 101 for conveying battery cells and a high-frequency sorting structure 102 for sorting high-frequency battery cells. Furthermore, the high-frequency sorting mechanism 1 is provided with a first transmission structure 101 for conveying battery cells in the high-frequency sorting mechanism 1. By conveying battery cells through the first transmission structure 101, it is convenient for the high-frequency sorting structure 102 to sort the high-frequency battery cells. In addition, the first transmission structure 101 is connected to the transmission mechanism 3 for conveying the sorted low-frequency battery cells to the low-frequency sorting mechanism 2.

[0031] The low-frequency sorting mechanism 2 includes a second conveying structure 201 for conveying battery cells and a low-frequency sorting structure 202 for sorting low-frequency battery cells. Further, the low-frequency sorting mechanism 2 is provided with a second conveying structure 201 for conveying battery cells in the low-frequency sorting mechanism 2. The second conveying structure 201 is connected to a transmission mechanism 3. The low-frequency battery cells to be sorted, which are conveyed to the low-frequency sorting mechanism 2 through the transmission mechanism 3, move in the low-frequency sorting structure 202 through the second conveying structure 201, thereby facilitating the sorting of low-frequency battery cells by the low-frequency sorting structure 202.

[0032] The working principle of the high-frequency sorting structure 102 and the low-frequency sorting structure 202 is mainly based on the combination of photoelectric testing technology, machine vision technology, high-precision measurement system, and automated control technology. The equipment uses an automated feeding mechanism to deliver the solar cells to be tested into the testing area. Then, a series of performance tests are performed on the solar cells using a high-precision measurement system (such as a power sensor and a temperature sensor), including but not limited to key electrical parameters such as open-circuit voltage (Voc), short-circuit current (Isc), and maximum power (Pmax). Simultaneously, the equipment is also equipped with a high-resolution camera and advanced image processing algorithms to meticulously observe the surface of the solar cells to detect potential defects such as cracks, scratches, and stains. Both the high-frequency sorting structure 102 and the low-frequency sorting structure 202 are existing technologies and will not be described in detail further.

[0033] Example 1:

[0034] like Figure 4As shown, in this embodiment, the transmission mechanism 3 is a single-piece transmission mechanism 301. The single-piece transmission mechanism 301 is disposed between the high-frequency sorting mechanism 1 and the low-frequency sorting mechanism 2 to transport a single battery cell from the high-frequency sorting mechanism 1 to the low-frequency sorting mechanism 2. The single-piece transmission mechanism 301 includes a conveyor belt 3011 and a drive component 3012 for driving the conveyor belt 3011. Further, the two ends of the conveyor belt 3011 are respectively connected to the first transmission structure 101 and the second transmission structure 201. The low-frequency battery cells to be sorted from the high-frequency sorting mechanism 1 are transported one by one to the second transmission structure 201 of the low-frequency sorting mechanism 2 through the conveyor belt 3011. The drive component 3012 includes a drive motor and a transmission wheel connected to the drive motor. The conveyor belt 3011 is disposed on the transmission wheel and is driven by the drive motor to rotate. The drive component 3012 and the conveyor belt 3011 are both existing technologies, so they will not be described in detail in this embodiment.

[0035] Example 2:

[0036] like Figure 5 As shown, in this embodiment, the transmission mechanism 3 is a basket transmission mechanism 302. The basket transmission mechanism 302 is disposed between the high-frequency sorting mechanism 1 and the low-frequency sorting mechanism 2 to transfer a number of battery cells as a whole from the high-frequency sorting mechanism 1 to the low-frequency sorting mechanism 2. Furthermore, the basket transmission mechanism 302 transports the low-frequency battery cells to be sorted from the high-frequency sorting mechanism 1 to the low-frequency sorting mechanism 2. The basket transmission mechanism 302 realizes the overall transportation of a number of battery cells, thereby improving the transportation efficiency of the battery cells.

[0037] The flower basket conveying mechanism 302 includes a flower basket conveying channel 3021 and a plurality of flower basket lifters 3022 disposed on the flower basket conveying channel 3021. A docking channel 5 is connected to the flower basket conveying mechanism 302, and the flower basket conveying channel 3021 is docked to the docking channel 5. Further, the flower basket conveying channel 3021 is located between the high-frequency sorting mechanism 1 and the low-frequency sorting mechanism 2. A plurality of flower basket lifters 3022 are provided on the flower basket conveying channel 3021 to lift the flower basket. The flower basket lifter 3022 includes a lifting motor, a lifting rope, and a flower basket clamping structure. The flower basket clamping structure is used to clamp the flower basket and drive the flower basket to lift. The lifting rope is connected to the output end of the lifting motor and the flower basket clamping structure. The lifting of the flower basket is realized by the lifting motor electrically lifting the rope.

[0038] Meanwhile, the flower basket transport mechanism 302 also includes a transport module, which is used to transport the battery cells into the flower basket or to transport the battery cells out of the flower basket. The transport module and the flower basket lift 3022 are both existing technologies, so they will not be described in detail in this embodiment.

[0039] In addition, the docking channel 5 transports flower baskets and delivers flower baskets loaded with different battery cells to the corresponding positions. The docking channel cooperates with the flower basket transport mechanism 302.

[0040] The docking channel 5 includes a first docking channel 501, which is located at the high-frequency sorting mechanism 1 and is used to transport high-frequency battery cells. Furthermore, the first docking channel 501 is connected to the high-frequency sorting structure 102 of the high-frequency sorting mechanism 1 and is used to transfer the high-frequency battery cells sorted by the high-frequency sorting structure 102 out of the equipment.

[0041] The docking channel 5 includes a second docking channel 502 and a third docking channel 503. The second docking channel 502 is located between the high-frequency sorting mechanism 1 and the basket transfer channel 3021, and the third docking channel 503 is located between the basket transfer channel 3021 and the low-frequency sorting mechanism 2. Furthermore, the low-frequency battery cells to be sorted from the high-frequency sorting mechanism 1 are sequentially transported to the low-frequency sorting mechanism 2 for sorting through the second docking channel 502, the basket transfer channel 3021 and the third docking channel 503.

[0042] In addition, the basket transport mechanism 302 also includes a transfer basket 4 for transporting low-frequency battery cells to be sorted to the low-frequency sorting mechanism 2. Several basket lifts 3022 are respectively set between the second docking channel 502 and the basket transport channel 3021 and between the basket transport channel 3021 and the third docking channel 503 for lifting the transfer basket 4. The low-frequency battery cells to be sorted from the high-frequency sorting mechanism 1 are transported to the transfer basket 4 by the transport module. The transfer basket 4 is transported to the basket transport channel 3021 through the second docking channel 502. The basket lifts the transfer basket 4 onto the basket transport channel 3021 by the basket lifts 3022, and then transports it to the third docking channel 503. The basket lifts the basket down onto the third docking channel 503 by the basket lifts 3022, and then the transfer basket 4 is transported to the low-frequency sorting mechanism 2 for sorting of low-frequency battery cells through the third docking channel 503.

[0043] The docking channel 5 includes a fourth docking channel 504, which is located at the low-frequency sorting mechanism 2 and is used to transport low-frequency battery cells. Furthermore, the fourth docking channel 504 is set at the low-frequency sorting structure 202 of the low-frequency sorting mechanism 2. The low-frequency battery cells sorted by the low-frequency sorting structure 202 are transferred out of the equipment through the fourth docking channel 504.

[0044] In addition, both the flower basket transport channel 3021 and the docking channel 5 are equipped with a drive structure for moving the flower basket. The drive structure can use a motor to move the flower basket. The above-mentioned equipment and structures are all existing technologies, so they will not be described in detail.

[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0046] Although this document frequently uses reference numerals from the figures, such as: high-frequency sorting mechanism 1, first conveying structure 101, high-frequency sorting structure 102, low-frequency sorting mechanism 2, second conveying structure 201, low-frequency sorting structure 202, transmission mechanism 3, single-piece transmission mechanism 301, conveyor belt 3011, drive assembly 3012, flower basket transmission mechanism 302, flower basket transmission channel 3021, flower basket lift 3022, transfer flower basket 4, docking channel 5, first docking channel 501, second docking channel 502, third docking channel 503, and fourth docking channel 504, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A battery cell sorting device, characterized in that, The device includes several high-frequency sorting mechanisms (1) and several low-frequency sorting mechanisms (2) arranged along the direction of battery cell transport. The high-frequency sorting mechanisms (1) are used to sort high-frequency battery cells, and the low-frequency sorting mechanisms (2) are used to sort low-frequency battery cells. The high-frequency sorting mechanisms (1) take priority over the low-frequency sorting mechanisms (2) in sorting battery cells. The number of high-frequency sorting mechanisms (1) is greater than the number of low-frequency sorting mechanisms (2). A transmission mechanism (3) for transporting battery cells is provided between the high-frequency sorting mechanisms (1) and the low-frequency sorting mechanisms (2).

2. The battery cell sorting device according to claim 1, characterized in that, The high-frequency sorting mechanism (1) includes a first conveying structure (101) for conveying battery cells and a high-frequency sorting structure (102) for sorting high-frequency battery cells.

3. The battery cell sorting device according to claim 1, characterized in that, The low-frequency sorting mechanism (2) includes a second conveying structure (201) for conveying battery cells and a low-frequency sorting structure (202) for sorting low-frequency battery cells.

4. The battery cell sorting equipment according to claim 1, characterized in that, The transmission mechanism (3) is a single-cell transmission mechanism (301). The single-cell transmission mechanism (301) is located between the high-frequency sorting mechanism (1) and the low-frequency sorting mechanism (2) to transfer a single cell from the high-frequency sorting mechanism (1) to the low-frequency sorting mechanism (2). The single-cell transmission mechanism (301) includes a conveyor belt (3011) and a drive assembly (3012) for driving the conveyor belt (3011) to operate.

5. The battery cell sorting device according to claim 1, characterized in that, The transmission mechanism (3) is a basket transmission mechanism (302), which is located between the high-frequency sorting mechanism (1) and the low-frequency sorting mechanism (2) to transfer a number of battery cells from the high-frequency sorting mechanism (1) to the low-frequency sorting mechanism (2).

6. A battery cell sorting device according to claim 5, characterized in that, The flower basket transport mechanism (302) includes a flower basket transport channel (3021) and a plurality of flower basket lifts (3022) disposed on the flower basket transport channel (3021). A docking channel (5) is connected to the flower basket transport mechanism (302), and the flower basket transport channel (3021) docks with the docking channel (5).

7. A battery cell sorting device according to claim 6, characterized in that, The docking channel (5) includes a first docking channel (501), which is located at the high-frequency sorting mechanism (1) and is used to transport high-frequency battery cells.

8. A battery cell sorting device according to claim 6, characterized in that, The docking channel (5) includes a second docking channel (502) and a third docking channel (503). The second docking channel (502) is located between the high-frequency sorting mechanism (1) and the flower basket transmission channel (3021), and the third docking channel (503) is located between the flower basket transmission channel (3021) and the low-frequency sorting mechanism (2).

9. A battery cell sorting device according to claim 8, characterized in that, The flower basket transport mechanism (302) also includes a transfer flower basket (4) for transporting low-frequency battery cells to be sorted to the low-frequency sorting mechanism (2). Several flower basket lifts (3022) are respectively set between the second docking channel (502) and the flower basket transport channel (3021) and between the flower basket transport channel (3021) and the third docking channel (503) for lifting the transfer flower basket (4).

10. A battery cell sorting device according to claim 6, characterized in that, The docking channel (5) includes a fourth docking channel (504), which is located at the low-frequency sorting mechanism (2) and is used to transport low-frequency battery cells.

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