Laminating apparatus and post-lamination electro-injection method

Abstract

The application discloses a laminating device and a post-laminating electric injection method. The laminating device comprises a cooling device, a component is placed in the cooling device, and a lead-out wire is arranged on the component. The cooling device comprises a fixing device for fixing a supporting device, each set of supporting devices corresponds to one component. A driving device is provided, a first sliding device is installed on the driving device, a second sliding device is connected to the first sliding device, and the driving device drives the second sliding device to reciprocate along a first direction through the first sliding device. A first driving member is arranged at the end of the second sliding device, and the first driving member is used for driving the second sliding device to reciprocate along a second direction. A camera device, a probe and a power supply device are arranged on the second sliding device. The camera device is used for taking a photo of the lead-out wire and positioning the lead-out wire. The power supply device is used for outputting a direct current, and the power supply device is electrically connected to the lead-out wire of the component through the probe. The position of the lead-out wire can be flexibly and accurately positioned without the need of providing an additional floor area.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and more particularly to a lamination device and a post-lamination electrical injection method. Background Art

[0002] Light decay is one of the important performance indicators of battery product reliability. The meaning of battery light decay mainly includes two types, light-induced decay (LID) and heat-assisted light-induced decay (LeTID). The early light decay phenomenon of solar cells will lead to a decrease in power, cause hot spot effect, cause customer losses, and lead to frequent complaints. To improve the problem of light-induced decay (LID), the industry has adopted the following methods: (1) reduce the oxygen content of silicon wafers through thermal field and crystal pulling process; (2) use gallium instead of boron as P-type dopant; (3) LID recovery treatment: under high temperature illumination conditions or when a forward current is applied, the boron-oxygen pair will undergo a decay-regeneration process, which can effectively improve the LID phenomenon. Heat-assisted light-induced decay (LeTID) is another phenomenon that is common in photovoltaic materials: this phenomenon has been reported in both gallium-doped P-type silicon and N-type silicon. At present, the academic community has provided two possible theoretical explanations: (1) HID (hydrogen-induced decay); (2) passivation decay.

[0003] Research has found that electrical injection can electrically control the valence and distribution of hydrogen in solar cells, passivating defects and impurities and effectively improving light decay. Current electrical injection equipment is mostly standalone, resulting in large footprints, lengthy process flows, and high production costs. Therefore, this technology is a pressing technical challenge in this field. Summary of the Invention

[0004] In view of this, the present invention provides a lamination device to solve the problems of existing electrical injection equipment such as large floor space, long process flow and high production cost.

[0005] In a first aspect, the present application provides a laminating device, comprising a cooling device, wherein at least one component is placed in the cooling device, wherein a lead wire is provided on the component, and wherein the cooling device comprises a fixing device for fixing at least one set of supporting devices, wherein each set of the supporting devices corresponds to one of the components;

[0006] at least one driving device, located outside the supporting device, wherein a first sliding device is mounted on the driving device, a second sliding device is connected to the first sliding device, and the driving device drives the second sliding device to reciprocate along a first direction via the first sliding device, wherein the first direction is a length extension direction of the supporting device;

[0007] A first driving member is provided at an end of the second sliding device, and the first driving member is used to drive the second sliding device to reciprocate along a second direction, and the first direction intersects with the second direction;

[0008] The second sliding device is provided with at least one camera device, at least two probes and a power supply device, wherein the camera device is used to take pictures of the lead wires and locate the lead wires; the power supply device is used to output direct current, and the power supply device is electrically connected to the lead wires of the component through the probes.

[0009] Optionally, the second sliding device includes a sliding rod, the power supply device is located on the top wall of the sliding rod, the camera device is located on the side wall of the sliding rod, and the probe is located below the sliding rod.

[0010] Optionally, the probe is connected to the sliding rod via a telescopic member.

[0011] Optionally, the cross-section of the sliding rod along the third direction is an inverted U-shape, and the top end of the telescopic member is located in the groove of the sliding rod.

[0012] Optionally, the length of the sliding rod along the second direction is not less than the width of the component.

[0013] Optionally, the fixing device includes a first crossbeam and a second crossbeam arranged opposite to each other along the first direction;

[0014] Each group of the support devices includes a first support arm and a second support arm arranged opposite to each other, wherein the length extension direction of the first support arm and the second support arm intersects the length extension direction of the first crossbeam and the second crossbeam;

[0015] One end of the first support arm and the second support arm is connected to the first crossbeam, and the other end of the first support arm and the second support arm is connected to the second crossbeam;

[0016] It also includes chains for placing lines, and the chains are divided into two groups, and the two groups of chains are respectively installed on the top walls of the first support arm and the second support arm.

[0017] Optionally, at least one set of the driving devices includes a first transmission belt and a second transmission belt, the first transmission belt is located on a side of the first support arm away from the second support arm, and the second transmission belt is located on a side of the second support arm away from the first support arm;

[0018] The first transmission belt and the second transmission belt are respectively connected to the second driving member.

[0019] Optionally, the first sliding device includes two sliding blocks, which are respectively connected to the first transmission belt and the second transmission belt, one end of each group of chains is fixed to the top wall of the first support arm or the second support arm, and the other end of each group of chains is fixed to the sliding block.

[0020] In a second aspect, the present application provides a post-lamination electrical injection method, which uses a lamination device to perform electrical injection on a component, wherein the lamination device is the lamination device described above, comprising the following steps:

[0021] After lamination of the at least one component, placing the at least one component in a cooling device;

[0022] After taking pictures of at least two lead-out wires using a camera device, the lead-out wires are preliminarily positioned;

[0023] According to the initially positioned lead wire, the driving device and the first driving member cooperate with each other to accurately position the lead wire;

[0024] According to the precisely positioned lead wire, the probe below the system is controlled, and electricity is injected into the lead wire through a power supply device.

[0025] Optionally, the step of coordinating the driving device and the first driving member includes:

[0026] The control system starts the first driving member, which drives the second sliding device to reciprocate in the second direction. Then the control system starts the driving device, which drives the second sliding device to reciprocate in the first direction through the first sliding device; or

[0027] The control system starts the driving device, which drives the second sliding device to reciprocate along the first direction through the first sliding device. Then the control system starts the first driving member, which drives the second sliding device to reciprocate along the second direction.

[0028] Optionally, at least two of the lead-out lines are injected individually or synchronously.

[0029] Compared with the prior art, the laminating device provided by the present invention achieves at least the following beneficial effects:

[0030] The present invention provides a lamination device and a method for post-lamination electrical injection, wherein the lamination device includes a cooling device, wherein at least one component is placed in the cooling device, and a lead wire is provided on the component. The cooling device includes a fixing device for fixing at least one set of supporting devices, each set of supporting devices corresponding to one component; at least one set of driving devices, located outside the supporting device, a first sliding device is installed on the driving device, and a second sliding device is connected to the first sliding device. The driving device drives the second sliding device to reciprocate along a first direction through the first sliding device, and the first direction is the length extension direction of the supporting device; a first driving member is provided at the end of the second sliding device, and the first driving member is provided at the end of the second sliding device. Used to drive the second sliding device to reciprocate along the second direction, and the first direction intersects the second direction; the second sliding device is provided with at least one camera device, at least two probes and a power supply device, the camera device is used to take pictures of the lead wires and locate the lead wires; the power supply device is used to output DC current, and the power supply device is electrically connected to the lead wires of the component through the probes. The above scheme can not only flexibly and accurately locate the position of the lead wires, but also directly install the supporting device, the driving device, the first sliding device, the second sliding device and the first driving member inside the cooling device, without the need for additional floor space, reducing investment costs, and at the same time improving the power of the component.

[0031] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0032] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0034] Figure 1 It is a schematic structural diagram of the laminating device provided by the present invention;

[0035] Figure 2 It is a structural diagram of the second sliding device, power supply device, camera device and probe provided by the present invention;

[0036] Figure 3 It is a structural schematic diagram of the supporting device, the second sliding device and the components provided by the present invention;

[0037] Figure 4 It is a schematic structural diagram of the second sliding device, the telescopic member, the camera device and the probe provided by the present invention;

[0038] Figure 5 It is a left side view of the laminating device provided by the present invention;

[0039] Figure 6 This is a flow chart of the post-lamination electrical injection method provided by the present invention. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0042] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] The inventors found that the existing electrical injection equipment is as follows:

[0046] (1) Electric injection equipment:

[0047] The robot at the feed port of the electric injection equipment moves the components into the electric injection equipment, and the components remain stationary in the electric injection equipment and are energized. After the injection is completed, the components are moved out of the electric injection equipment by the robot at the discharge port. This equipment has the advantages of simple design and low manufacturing cost, but it also has disadvantages such as low efficiency, low production capacity, and large footprint.

[0048] (2) Laminator transformation and electric injection:

[0049] Positive and negative conductive metal foils are set on the high-temperature cloth of a conventional laminator. At the same time, pneumatic tooling probes are installed on the metal beams at the junction of the loading table and the vacuum chamber, as well as the vacuum chamber and the laminating chamber of the conventional laminator. The pneumatic tooling probes are connected to the current source to form a component power circuit. This solution has the problem of the probes and the component electrodes contacting inside the vacuum chamber, which is not easy to observe and adjust.

[0050] In order to avoid taking up extra space and reduce investment costs, the present invention provides a lamination device and a post-lamination electrical injection method. Specific embodiments of the lamination device will be described in detail below.

[0051] Figure 1 It is a schematic structural diagram of the laminating device provided by the present invention; Figure 2 It is a structural diagram of the second sliding device, power supply device, camera device and probe provided by the present invention; Figure 3 is a structural diagram of the supporting device, the second sliding device and the components provided by the present invention; see Figure 1-Figure 3 As shown, this embodiment provides a laminating device, including a cooling device 1, in which at least one component a is placed, and a lead wire a1 is provided on the component a. The cooling device 1 includes a fixing device 11 for fixing at least one set of supporting devices 2, each set of supporting devices 2 corresponding to one component a;

[0052] At least one driving device 3 is located outside the supporting device 2. A first sliding device 4 is installed on the driving device 3. The first sliding device 4 is connected to the second sliding device 5. The driving device 3 drives the second sliding device 5 to reciprocate along a first direction X through the first sliding device 4. The first direction X is the length extension direction of the supporting device 2.

[0053] A first driving member 51 is provided at the end of the second sliding device 5 , and the first driving member 51 is used to drive the second sliding device 5 to reciprocate along the second direction Y, where the first direction X intersects the second direction Y;

[0054] The second sliding device 5 is provided with at least one camera device 52, at least two probes 53 and a power supply device 54. The camera device 52 is used to take pictures of the lead wire a1 and locate the lead wire a1; the power supply device 54 is used to output DC current, and the power supply device 54 is electrically connected to the lead wire a1 of component a through the probe 53.

[0055] Specifically, continue to refer to Figure 1 As shown, the laminating device includes a cooling device 1, which can be a cooling chamber for cooling the laminated component a. The size of the cooling chamber can be 11m×2.7m. The size of the cooling chamber can be adjusted according to actual conditions and is not limited thereto.

[0056] Combine Figure 3As shown, multiple components a can be placed in the cooling device 1, and multiple components a can be cooled simultaneously. For example, six components a can be placed in the cooling device 1. The number of components a in the cooling device 1 can be increased or decreased according to actual conditions. Each component a is provided with a lead wire a1, which can be a lead wire a1 of a bus bar. The number of lead wires a1 can be six, and the six lead wires a1 include three pairs of positive and negative lead wires a1. This embodiment only illustrates the placement of three components a in the cooling device 1. The cooling device 1 includes a fixing device 11, which is used to fix multiple groups of support devices 2. The fixing device 11 can be the original structure of the cooling device 1, and each group of support devices 2 corresponds to a component a.

[0057] The inventors also discovered that, since the position of the lead wire a1 may deviate when the component a is transferred to the cooling device 1 after lamination, the position of the lead wire a1 cannot be accurately obtained.

[0058] Based on the above considerations, the present embodiment further includes multiple groups of driving devices 3, each group of driving devices 3 corresponds to each group of supporting devices 2, and each group of driving devices 3 is located outside the supporting device 2. A first sliding device 4 is installed on the driving device 3, and the driving device 3 drives the first sliding device 4 to reciprocate along the first direction X. The first sliding device 4 is connected to the second sliding device 5. The driving device 3 drives the second sliding device 5 to reciprocate along the first direction X through the first sliding device 4. It can be understood that when the driving device 3 drives the first sliding device 4 to reciprocate along the first direction X, the first sliding device 4 drives the second sliding device 5 to reciprocate along the first direction X. The purpose is to preliminarily find the position of the lead wire a1 and prepare for subsequent electrical injection. The first direction X can be the length extension direction of the supporting device 2;

[0059] A first driving member 51 is provided at the end of the second sliding device 5. The first driving member 51 is used to drive the second sliding device 5 to reciprocate along the second direction Y. The first direction X intersects the second direction Y. Optionally, the second direction Y is perpendicular to the first direction X. Specifically, the second direction Y may be the length extension direction of the second sliding device 5. The first driving member 51 may be a motor, and the motor model may be SGM7A-10A7A6C.

[0060] It should be noted that when the driving device 3 drives the first sliding device 4 to reciprocate along the first direction X, the first sliding device 4 drives the second sliding device 5 to reciprocate along the first direction X, and the first driving member 51 is used to drive the second sliding device 5 to reciprocate along the second direction Y. By adopting the above solution, the position of the lead wire a1 can be found more accurately to facilitate electrical injection.

[0061] The second sliding device 5 is provided with at least one camera device 52, at least two probes 53 and a power supply device 54. The number of the camera devices 52 can be two, and the two camera devices 52 can be placed on both sides of the second sliding device 5 along the second direction Y; the number of the probes 53 can be two, and the two probes 53 are located on both sides of the second sliding device 5 along the second direction Y; the number of the power supply device 54 can be one, and the model of the power supply device 54 is DCPS3000. The camera device 52 can be a camera for taking pictures of the lead wire a1 and locating the position of the lead wire a1. The camera model can be MGS300IR-H2; specifically, the camera can find the lead wire a1 through the reflective characteristics of the bus bar; the power supply device 54 is used to output DC current, and the power supply device 54 is electrically connected to the lead wire a1 of the component a through the probe 53 to inject electricity into the lead wire a1.

[0062] The specific working principle is as follows: the electric injection technology is applied to the cooling device 1 (such as the cooling chamber) of the laminator. First, the camera device 52 finds the lead wire a1 through the reflective characteristics of the bus bar. Then the driving device 3 drives the second sliding device 5 along the first direction X through the first sliding device 4 to preliminarily locate the position of the lead wire a1. The first driving member 51 drives the second sliding device 5 along the second direction Y to accurately locate the lead wire a1. After the lead wire a1 is accurately located, the probe 53 and the power supply device 54 cooperate with each other to perform electric injection on the lead wire a1.

[0063] It should be noted that: the above-mentioned driving device 3 drives the second sliding device 5 along the first direction X through the first sliding device 4 to preliminarily locate the position of the lead wire a1, and the first driving member 51 drives the second sliding device 5 along the second direction Y to accurately locate the position of the lead wire a1. The order can also be adjusted. For example, the first driving member 51 first drives the second sliding device 5 along the second direction Y to preliminarily locate the position of the lead wire a1, and the driving device 3 drives the second sliding device 5 along the first direction X through the first sliding device 4 to accurately locate the position of the lead wire a1. As long as the position of the lead wire a1 can be accurately located, there is no limitation on this.

[0064] Typically, each component a has six lead wires a1. The two lead wires a1 on the far left and far right are directly electrically connected to the power supply device 54 using wires (not marked in the figure). The positive lead wires of the remaining lead wires a1 are electrically connected to the positive lead wires, and the negative lead wires are electrically connected to the negative lead wires, that is, they are connected in series and a forward bias voltage is applied.

[0065] It can be seen from the above embodiments that the laminating device provided in this embodiment achieves at least the following beneficial effects:

[0066] The laminating device provided in this embodiment includes a cooling device 1, in which at least one component a is placed, and a lead wire a1 is provided on the component a. The cooling device 1 includes a fixing device 11 for fixing at least one group of supporting devices 2, each group of supporting devices 2 corresponding to one component a; at least one group of driving devices 3, located outside the supporting devices 2, and a first sliding device 4 is installed on the driving device 3, and a second sliding device 5 is connected to the first sliding device 4. The driving device 3 drives the second sliding device 5 to reciprocate along a first direction X through the first sliding device 4, and the first direction X is the length extension direction of the supporting device 2; a first driving member 51 is provided at the end of the second sliding device 5, and the first driving member 51 is used to drive the second sliding device 5 reciprocates along the second direction Y, and the first direction X intersects the second direction Y; the second sliding device 5 is provided with at least one camera device 52, at least two probes 53 and a power supply device 54, the camera device 52 is used to take pictures of the lead wire a1 and locate the lead wire a1; the power supply device 54 is used to output a DC current, and the power supply device 54 is electrically connected to the lead wire a1 of the component a through the probe 53. The above solution can not only flexibly and accurately locate the position of the lead wire a1, but also directly install the support device 2, the driving device 3, the first sliding device 4, the second sliding device 5 and the first driving member 51 inside the cooling device 1, without providing additional floor space, reducing investment costs, and at the same time improving the power of the component a.

[0067] In an alternative embodiment, Figure 4 This is a schematic diagram of the structure of the second sliding device, telescopic member, camera device and probe provided by the present invention; Figure 4 As shown, the second sliding device 5 includes a sliding rod 55 , a power supply device 54 is located on the top wall of the sliding rod 55 , a camera device 52 is located on the side wall of the sliding rod 55 , and a probe 53 is located below the sliding rod 55 .

[0068] Specifically, combined Figure 2 and Figure 4As shown, the second sliding device 5 includes a sliding rod 55, the length of the sliding rod 55 can extend along the second direction Y, and the power supply device 54 can be directly fixedly connected to the top wall of the sliding rod 55. Specifically, the power supply device 54 can be fixedly connected to the middle of the sliding rod 55, or the power supply device 54 can be installed at the end of the sliding rod 55 according to actual conditions. As long as the power supply device 54 can be fixed at the end of the sliding rod 55, there is no limitation on this. The camera device 52 can be directly installed on the side wall of the sliding rod 55. When the number of camera devices 52 is two, the two camera devices 52 can be installed on both sides of the sliding rod 55 along the second direction Y, and the probe 53 can be located below the sliding rod 55. With this scheme, the overall structure is simple and the overall layout is reasonable. When the first sliding device 4 and the sliding rod 55 are working, mutual interference between the camera device 52, the power supply device 54 and the probe 53 is avoided.

[0069] It should be noted that: continue to refer to Figure 3 As shown, the sliding rod 55 can be located directly above the component a. When the lead wire a1 is precisely positioned, the sliding rod 55 is located directly above the lead wire a1, which is beneficial for the probe 53 to perform electrical injection on the lead wire a1.

[0070] In an alternative embodiment, continue to refer to Figure 4 As shown, the probe 53 is connected to the sliding rod 55 through a telescopic part 56. The telescopic part 56 can be a spring. When the first sliding device 4 and the sliding rod 55 cooperate with each other to find the position of the lead wire a1, the control system (PLC, programmable logic controller) can control the telescopic part 56 to lower the probe 53, so that the probe 53 can inject electricity into the lead wire a1 of component a. The time of electrical injection can be 2min-30min. The control system then controls the telescopic part 56 to retract the probe 53 upward. Then the electrical injection is completed. After the telescopic part 56 is retracted upward, the probe 53 does not need to be retracted into the groove 57.

[0071] In an alternative embodiment, continue to refer to Figure 4 As shown, the cross-section of the sliding rod 55 along the third direction Z is an inverted U-shape, and the top end of the telescopic part 56 is located in the groove 57 of the sliding rod 55. It can be understood that the top end of the telescopic part 56 is directly fixedly connected to the groove 57 of the sliding rod 55, and space is provided for the telescopic part 56 through the groove 57 of the sliding rod 55. There is no need to provide additional space for the telescopic part 56, thereby reducing costs.

[0072] It should be noted that the wires of the power supply device 54 and the signal lines that drive the sliding rod 55 to reciprocate along the second direction Y can also be laid in the groove 57. Of course, according to actual conditions, the wires of the power supply device 54 and the signal lines that drive the sliding rod 55 to reciprocate along the second direction Y can also be laid at other positions of the sliding rod 55. As long as the sliding rod 55 can be guaranteed to reciprocate along the second direction Y, there is no limitation on this.

[0073] In an optional embodiment, the length of the sliding rod 55 along the second direction Y is not less than the width of the assembly a. Specifically, the three pairs of positive and negative lead wires a1 typically extend beyond the back plate. If the length of the sliding rod 55 along the second direction Y is less than the width of the assembly a, it is difficult to locate the lead wires a1. Therefore, the length of the sliding rod 55 along the second direction Y is not less than the width of the assembly a to facilitate the sliding rod 55 in locating the lead wires a1.

[0074] In an optional embodiment, the fixing device 11 includes a first beam 110 and a second beam 111 arranged opposite to each other along a first direction X; each group of supporting devices 2 includes a first support arm 21 and a second support arm 22 arranged opposite to each other, and the length extension direction of the first support arm 21 and the second support arm 22 intersects with the length extension direction of the first beam 110 and the second beam 111; one end of the first support arm 21 and the second support arm 22 is connected to the first beam 110, and the other end of the first support arm 21 and the second support arm 22 is connected to the second beam 111; and it also includes a chain 6 for placing a circuit (not shown in the figure), and the chain 6 is divided into two groups, and the two groups of chains 6 are respectively installed on the top walls of the first support arm 21 and the second support arm 22.

[0075] Specifically, continue to refer to Figure 1 As shown, the fixing device 11 includes a first beam 110 and a second beam 111 arranged opposite to each other along a first direction X. The first beam 110 and the second beam 111 are existing structures of the cooling device 1. Each group of support devices 2 includes a first support arm 21 and a second support arm 22 arranged opposite to each other. There is a gap between the first support arm 21 and the second support arm 22, and the gap may be no less than the width of the component a; the length extension direction of the first support arm 21 and the second support arm 22 intersects with the length extension direction of the first beam 110 and the second beam 111. Optionally, the length extension direction of the first support arm 21 and the second support arm 22 is perpendicular to the length extension direction of the first beam 110 and the second beam 111.

[0076] One end of the first support arm 21 and the second support arm 22 can be fixedly connected to the first crossbeam 110 by a fastener (not shown in the figure), and the other end of the first support arm 21 and the second support arm 22 can also be fixedly connected to the second crossbeam 111 by a fastener (not shown in the figure). The above-mentioned fasteners can be bolts, that is, the two ends of the first support arm 21 and the second support arm 22 can be directly fixed to the first crossbeam 110 and the second crossbeam 111 by fasteners to prevent the first support arm 21 and the second support arm 22 from moving.

[0077] The system further includes chains 6 . Chains 6 may be provided in two sets, mounted on the top walls of the first support arm 21 and the second support arm 22 , respectively. Chains 6 may be tank chains, within which wiring may be placed. These wiring may include power lines in the power supply unit 54 , signal lines for the drive unit 3 , the first drive element 51 , and the second drive element 33 . Chains 6 not only align the wiring but also prevent wear. The tank chains may reciprocate along the first direction X along with the first sliding device 4 .

[0078] It should be noted that the tank chain is composed of numerous unit links that rotate freely. Each unit link of the tank chain consists of left and right chain plates (not labeled in the image) and upper and lower cover plates (not labeled in the image). Each link of the drag chain can be opened, making it easy to load and unload, eliminating the need for threading. Once the cover plates are opened, the wiring can be inserted into the drag chain. The tank chain exhibits excellent toughness, high elasticity, and wear resistance, is flame-retardant, and performs stably at high and low temperatures, ensuring stable operating speeds. The tank chain is an existing mechanism and will not be elaborated on in detail here.

[0079] Since the existing cooling device 1 only has a platform (including the first beam 110 and the second beam 111 ) and is not covered around, it is convenient to directly observe the post-lamination electrical injection.

[0080] In the above solution, the first support arm 21 and the second support arm 22 are directly fixed to the first beam 110 and the second beam 111 of the existing structure, without providing additional space for installing the electric injection device, thereby reducing costs. At the same time, the two sets of chains 6 are respectively installed on the top walls of the first support arm 21 and the second support arm 22, which can not only regularize the line, but also prevent the line from wear.

[0081] In an alternative embodiment, Figure 5 It is a left view of the laminating device provided by the present invention; Figure 1 and Figure 5As shown, at least one set of driving devices 3 includes a first transmission belt 31 and a second transmission belt 32. The first transmission belt 31 is located on the side of the first support arm 21 away from the second support arm 22, and the second transmission belt 32 is located on the side of the second support arm 22 away from the first support arm 21. It can be understood that the first transmission belt 31 can be located on the outside of the first support arm 21, and the second transmission belt 32 can be located on the outside of the second support arm 22; the first transmission belt 31 and the second transmission belt 32 are respectively connected to the second driving member 33, and the second driving member 33 can be a motor. The model of the motor can be MSIH4-40B30CB. It can be understood that the number of the second driving members 33 is 2, and the two second driving members 33 can correspond to the first transmission belt 31 and the second transmission belt 32 respectively. The two second driving members 33 respectively drive the first transmission belt 31 and the second transmission belt 32 to reciprocate along the first direction X, and the first transmission belt 31 and the second transmission belt 32 drive the first sliding device 4 to reciprocate along the first direction X. It should be noted that the two second driving members 33 can be driven synchronously.

[0082] In an optional embodiment, the first sliding device 4 includes two sliding blocks, which are respectively connected to the first transmission belt 31 and the second transmission belt 32. One end of each group of chains 6 is fixed to the top wall of the first support arm 21 or the second support arm 22, and the other end of each group of chains 6 is fixed to the sliding block.

[0083] Specifically, combined Figure 1 and Figure 5 As shown, the first sliding device 4 includes two sliding blocks, and the shapes of the two sliding blocks can be rectangular. One sliding block is fixedly connected to the top surface of the first transmission belt 31, and the other sliding block is fixedly connected to the top surface of the second transmission belt 32. One end of a group of chains 6 can be directly fixed to the top wall of the first support arm 21, and the other end thereof is fixed to the sliding block connected to the first transmission belt 31. One end of another group of chains 6 can be directly fixed to the top wall of the second support arm 22, and the other end thereof is fixed to the sliding block connected to the second transmission belt 32. When the second driving member 33 drives the first transmission belt 31 and the second transmission belt 32 to rotate, the chain 6 is driven to reciprocate along the first direction X through the sliding block. The two ends of the sliding rod 55 can be fixedly connected to the two sliding blocks 41, thereby ensuring that when the sliding block 41 reciprocates along the first direction, it can drive the sliding rod 55 to reciprocate along the first direction.

[0084] Figure 6 This is a flow chart of the post-lamination electrical injection method provided by the present invention, referring to Figure 6 As shown, this embodiment provides a method for post-lamination electrical injection, which uses a lamination device to perform electrical injection on component a, and the lamination device is the lamination device mentioned above, including the following steps:

[0085] S1. After laminating at least one component a, place at least one component a in a cooling device 1;

[0086] S2. After taking photos of at least two lead wires a1 using the camera device 52, the lead wires a1 are preliminarily positioned;

[0087] S3. Based on the initially located lead wire a1, the driving device 3 and the first driving member 51 cooperate with each other to accurately locate the lead wire a1;

[0088] S4. According to the precisely positioned lead wire a1, the probe 53 below the system is controlled, and the lead wire a1 is electrically injected through the power supply device 54.

[0089] Specifically, combined Figure 1 and Figure 6 As shown, the post-lamination electrical injection method uses a lamination device to perform electrical injection on component a, and the lamination device is the lamination device mentioned above, comprising the following steps:

[0090] S1. After multiple components a are laminated, there can be six components a, and the number can be increased or decreased according to the size of the cooling device 1, without limitation. The components a can be components a of different sizes, and can be N-type cells or P-type cells according to the properties of the silicon wafer, without limitation. This embodiment only uses three components a as an example;

[0091] The multiple components a are transferred to a cooling device 1, which can be a cooling chamber. The laminated components a are neatly arranged in the cooling device 1 along the second direction Y.

[0092] S2. After photographing one positive lead wire a1 and one negative lead wire a1 through the camera device 52, the positive lead wire a1 and the negative lead wire a1 are preliminarily located. This can be understood as finding and locating the lead wire a1 by utilizing the reflective characteristics of the busbar. It should be noted that the camera device 52 may be a camera.

[0093] S3. Find the lead wire a1 located according to the camera device 52, and cooperate with the driving device 3 and the first driving member 51 to accurately locate the lead wire a1. Specifically, optionally, the cooperation between the driving device 3 and the first driving member 51 includes: the control system starts the first driving member 51, and the first driving member 51 drives the second sliding device 5 to reciprocate along the second direction Y, and then the control system starts the driving device 3, and the driving device 3 drives the second sliding device 5 to reciprocate along the first direction X through the first sliding device 4; or, the control system starts the driving device 3, and the driving device 3 drives the second sliding device 5 to reciprocate along the first direction X through the first sliding device 4, and then the control system starts the first driving member 51, and the first driving member 51 drives the second sliding device 5 to reciprocate along the second direction Y; no matter which of the above methods is adopted, the lead wire a1 can be accurately positioned.

[0094] S4. According to the precisely positioned lead wire a1, the probe 53 below the system is controlled, and the power supply device 54 injects electricity into the lead wire a1 through the probe 53. Then, the probe 53 retracts upward, and the electricity injection is completed.

[0095] The control system can be a PLC controller. The entire electrical injection process is integrated into the lamination process flow, adapting to the lamination cycle, without requiring additional floor space and without affecting overall production capacity.

[0096] Combine Figure 1 and Figure 3 As shown, the electric injection method is applied to the cooling device 1 (such as the cooling chamber) of the laminator, and the heat after lamination (25°C-140°C) is used to accelerate the electric injection. The heat can be reused to improve the power gain of the component after the electric injection. First, the camera device 52 finds the lead wire a1 through the reflective characteristics of the busbar. Then, the position of the lead wire a1 is accurately located by the mutual cooperation between the first sliding device 4 and the first driving member 51. Then, the lead wire a1 is electrically injected through the mutual cooperation between the probe 53 and the power supply device 54. The electric injection process can activate the hydrogen ions in the battery (hydrogen ions have three charge states: H+, H-, H 0 , H- and H 0 Mainly plays a passivation role), increasing the H- and H 0 This solution integrates the entire electrical injection process into the lamination process, adapting it to the lamination process cycle without occupying additional floor space, helping to reduce investment costs and having no impact on production capacity.

[0097] Optionally, the electric injection time range can be 2min-30min, and the current range can be 5-100A. The electric injection time is related to the current size. Taking PERC battery as an example, the larger the PERC battery injection current, the shorter the time it takes to reach the peak.

[0098] It should be noted that: since the cooling time after component lamination is between 2 minutes and 40 minutes, and the component electrical injection time is between 2 minutes and 30 minutes, the component electrical injection time does not exceed the component cooling time, and does not need to take up extra time, so it can adapt to the lamination process rhythm.

[0099] Combine Figure 1 As shown, the performance of component a is improved after electrical injection, and the output power of component a is increased by at least 1.5W.

[0100] In an optional embodiment, at least two lead wires a1 are injected separately or synchronously. Taking three components a placed in the cooling device 1 as an example, when three components a are placed in the cooling device 1, the three pairs of positive and negative lead wires a1 in the three components a can be electrically injected at the same time to save time cost. Of course, according to actual conditions, each component a can be injected separately, such as a pair of positive and negative lead wires a1 being electrically injected separately.

[0101] It can be seen from the above embodiments that the lamination device and post-lamination electrical injection method provided by the present invention achieve at least the following beneficial effects:

[0102] The present invention provides a lamination device and a method for post-lamination electrical injection, wherein the lamination device includes a cooling device, wherein at least one component is placed in the cooling device, and a lead wire is provided on the component. The cooling device includes a fixing device for fixing at least one set of supporting devices, each set of supporting devices corresponding to one component; at least one set of driving devices, located outside the supporting device, a first sliding device is installed on the driving device, and a second sliding device is connected to the first sliding device. The driving device drives the second sliding device to reciprocate along a first direction through the first sliding device, and the first direction is the length extension direction of the supporting device; a first driving member is provided at the end of the second sliding device, and the first driving member is provided at the end of the second sliding device. Used to drive the second sliding device to reciprocate along the second direction, and the first direction intersects the second direction; the second sliding device is provided with at least one camera device, at least two probes and a power supply device, the camera device is used to take pictures of the lead wires and locate the lead wires; the power supply device is used to output DC current, and the power supply device is electrically connected to the lead wires of the component through the probes. The above scheme can not only flexibly and accurately locate the position of the lead wires, but also directly install the supporting device, the driving device, the first sliding device, the second sliding device and the first driving member inside the cooling device, without the need for additional floor space, reducing investment costs, and at the same time improving the power of the component.

[0103] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A laminating device, characterized in that The cooling device comprises a cooling device, wherein at least one component is placed in the cooling device, and a lead wire is provided on the component. The cooling device comprises a fixing device for fixing at least one set of supporting devices, and each set of the supporting devices corresponds to one of the components; at least one driving device, located outside the supporting device, wherein a first sliding device is mounted on the driving device, a second sliding device is connected to the first sliding device, and the driving device drives the second sliding device to reciprocate along a first direction via the first sliding device, wherein the first direction is a length extension direction of the supporting device; A first driving member is provided at an end of the second sliding device, and the first driving member is used to drive the second sliding device to reciprocate along a second direction, and the first direction intersects with the second direction; The second sliding device is provided with at least one camera device, at least two probes and a power supply device, wherein the camera device is used to take pictures of the lead wires and locate the lead wires; the power supply device is used to output direct current, and the power supply device is electrically connected to the lead wires of the component through the probes.

2. The laminating device according to claim 1, characterized in that The second sliding device includes a sliding rod, the power supply device is located on the top wall of the sliding rod, the camera device is located on the side wall of the sliding rod, and the probe is located below the sliding rod.

3. The laminating device according to claim 2, characterized in that The probe is connected to the sliding rod through a telescopic member.

4. The laminating device according to claim 3, characterized in that The cross section of the sliding rod along the third direction is an inverted U shape, and the top end of the telescopic member is located in the groove of the sliding rod.

5. The laminating device according to claim 2, characterized in that The length of the sliding rod along the second direction is not less than the width of the component.

6. The laminating device according to claim 2, characterized in that The fixing device includes a first crossbeam and a second crossbeam arranged opposite to each other along the first direction; Each group of the support devices includes a first support arm and a second support arm arranged opposite to each other, wherein the length extension direction of the first support arm and the second support arm intersects the length extension direction of the first crossbeam and the second crossbeam; One end of the first support arm and the second support arm is connected to the first crossbeam, and the other end of the first support arm and the second support arm is connected to the second crossbeam; It also includes chains for placing lines, and the chains are divided into two groups, and the two groups of chains are respectively installed on the top walls of the first support arm and the second support arm.

7. The laminating device according to claim 6, characterized in that At least one set of the driving devices includes a first transmission belt and a second transmission belt, the first transmission belt is located on a side of the first support arm away from the second support arm, and the second transmission belt is located on a side of the second support arm away from the first support arm; The first transmission belt and the second transmission belt are respectively connected to the second driving member.

8. The laminating device according to claim 7, characterized in that The first sliding device includes two sliding blocks, which are respectively connected to the first transmission belt and the second transmission belt. One end of each group of chains is fixed to the top wall of the first support arm or the second support arm, and the other end of each group of chains is fixed to the sliding block.

9. A post-lamination electrical injection method, characterized in that: The component is electrically injected using a lamination device, wherein the lamination device is the lamination device according to any one of claims 1 to 8, comprising the following steps: After lamination of the at least one component, placing the at least one component in a cooling device; After taking pictures of at least two lead-out wires using a camera device, the lead-out wires are preliminarily positioned; According to the initially positioned lead wire, the driving device and the first driving member cooperate with each other to accurately position the lead wire; According to the precisely positioned lead wire, the probe below the system is controlled, and electricity is injected into the lead wire through a power supply device.

10. The post-lamination electrical injection method according to claim 9, characterized in that: The cooperation between the driving device and the first driving member includes: The control system starts the first driving member, which drives the second sliding device to reciprocate in the second direction. Then the control system starts the driving device, which drives the second sliding device to reciprocate in the first direction through the first sliding device; or The control system starts the driving device, which drives the second sliding device to reciprocate along the first direction through the first sliding device. Then the control system starts the first driving member, which drives the second sliding device to reciprocate along the second direction.

11. The post-lamination electrical injection method according to claim 9, characterized in that: At least two of the lead wires are injected individually or simultaneously.

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