A 0bb dispensing equipment suitable for bc battery

Abstract

The application discloses a 0BB dispensing device suitable for BC batteries, which comprises a dispensing mechanism and a feeding mechanism, the BC battery is installed on the feeding mechanism, the dispensing mechanism is suitable for lowering and transversely dispensing when the BC battery moves to a dispensing line, and the dispensing device further comprises a scraping mechanism, the scraping mechanism comprises a limiting structure and a scraping structure, the limiting structure is suitable for sliding the scraping structure on a straight line where the dispensing line is located, and the dispensing mechanism acts on the scraping structure when lowering and synchronously moves the scraping mechanism with the dispensing mechanism. The scraping mechanism is only arranged at one position, the overall structure of the scraping mechanism is simple, the dispensing direction of adjacent two dispensing operations is exchanged in sequence when the dispensing mechanism dispenses, the continuous scraping mechanism is matched, scraping operation can be synchronously performed every time when dispensing is performed, uniform scraping is ensured, and the dispensing quality is ensured.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cell technology, and in particular to an OBB dispensing device suitable for BC cells. Background Technology

[0002] Back-contact (BC) solar cells are a type of solar cell technology that integrates all positive and negative metal contacts on the back side. Their grid-free design on the front allows them to absorb more sunlight. OBB technology is a manufacturing process that optimizes the grid structure and reduces the amount of silver paste used. Its core lies in welding and dispensing; through the combined use of welding and dispensing processes, a reliable conductive path is ensured between the cell and the solder ribbon.

[0003] The combination of 0bb technology and BC cell technology is one of the current directions of photovoltaic cell development. During dispensing, due to factors such as glue injection volume error and needle blockage, there are problems such as glue overflow and obstruction after dispensing. To address these issues, we propose a dispensing device that can perform scraping during dispensing. Utility Model Content

[0004] The purpose of this application is to provide an OBB dispensing device for BC batteries that achieves a uniform dispensing effect by scraping off excess adhesive.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an OBB dispensing device suitable for BC batteries, comprising a dispensing mechanism and a feeding mechanism, wherein the BC battery is mounted on the feeding mechanism, the dispensing mechanism is adapted to descend and laterally dispense adhesive when the BC battery moves to the dispensing line, the dispensing device further comprising a scraping mechanism, the scraping mechanism comprising a limiting structure and a scraping structure, the limiting structure being adapted to allow the scraping structure to slide on the straight line where the dispensing line is located, and the dispensing mechanism acting on the scraping structure when descending causes the scraping mechanism to move synchronously with the dispensing mechanism.

[0006] As a preferred embodiment, the limiting structure includes support columns and limiting plates arranged on both sides of the feeding mechanism. The limiting plates are formed with grooves for the sliding of the scraping structure, and the two ends of the grooves correspond to the lifting points of the dispensing mechanism on both sides of the feeding mechanism.

[0007] As a preferred embodiment, the scraping structure includes a slider for limiting sliding in the groove, two scrapers disposed at both ends of the bottom of the slider, and a clearance hole disposed in the middle of the slider. The dispensing mechanism includes a dispensing needle. When the dispensing mechanism descends, the dispensing needle passes through the clearance hole. When the dispensing mechanism moves laterally, it acts on the slider and causes it to slide.

[0008] As a preferred embodiment, the support column is a height-adjustable telescopic column, and the height of the support column is adjusted so that the bottom of the scraper and the top surface of the BC battery are aligned.

[0009] As a preferred embodiment, the scraper has an L-shaped cross-section, and a glue storage groove is formed in the middle of the inner side of the scraper.

[0010] As a preferred embodiment, the glue storage tank is semi-circular or V-shaped, and the inner side of the bottom of the scraper has a configuration that is thick at both ends and thin in the middle.

[0011] As a preferred embodiment, the dispensing mechanism includes a lifting structure and a lateral movement structure. The lifting structure is used to lower the dispensing needle to a height that mates with the BC battery, and the lateral movement structure is used to drive the dispensing needle to move along the grid line direction.

[0012] As a preferred embodiment, the feeding mechanism includes a longitudinal movement structure and a mounting section, on which the BC battery is mounted.

[0013] As a preferred embodiment, the mounting portion is provided with a clamp, and after the BC battery is placed in the mounting area of ​​the mounting portion, the clamp presses the BC battery firmly onto the mounting portion.

[0014] As a preferred embodiment, the dispensing mechanism further includes an adhesive tank, which is equipped with a pressure detection unit.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The scraping mechanism is set in only one place and has a simple overall structure. When the dispensing mechanism dispenses glue, the dispensing direction of two adjacent dispensings is changed in turn. It works in conjunction with the scraping mechanism to ensure that the scraping operation is performed synchronously every time glue is dispensed, so as to ensure uniform scraping and thus ensure the quality of glue dispensing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0017] Figure 2 yes Figure 1 The front view.

[0018] Figure 3 yes Figure 1 Top view.

[0019] Figure 4 This is a schematic diagram when the glue storage tank is semi-circular.

[0020] Figure 5 This is a schematic diagram of a V-shaped glue storage tank.

[0021] In the diagram: 1. Dispensing mechanism; 2. Feeding mechanism; 3. Scraping mechanism; 4. Lateral movement structure; 5. Lifting structure; 6. Longitudinal movement structure; 7. Glue tank; 8. Injection needle; 9. Slider; 10. Limiting plate; 11. Fixture; 12. BC battery; 13. Slide groove; 14. Scraper; 15. Glue storage tank. Detailed Implementation

[0022] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0026] Reference Figures 1 to 5As shown, this application proposes an OBB dispensing device suitable for BC batteries, including a dispensing mechanism 1 and a feeding mechanism 2. The BC battery 12 is mounted on the feeding mechanism 2. The dispensing mechanism 1 is adapted to descend and laterally dispense glue when the BC battery 12 moves to the dispensing line. The dispensing device also includes a scraping mechanism 3, which includes a limiting structure and a scraping structure. The limiting structure is adapted to allow the scraping structure to slide on the straight line of the dispensing line. When the dispensing mechanism 1 descends, it acts on the scraping structure and causes the scraping mechanism 3 to move synchronously with the dispensing mechanism 1. The dispensing mechanism 1 has two strokes: lifting and lateral. During dispensing, it needs to descend to allow the dispensing needle 8 to descend to the dispensing point. After dispensing is completed, it needs to rise. At this time, the feeding mechanism 2 carries the BC battery 12 to the next dispensing point, and so on.

[0027] The scraping mechanism 3 is only provided in one location, and it does not have a reset structure, resulting in a simple overall structure. In use, the dispensing mechanism 1 dispenses glue from left to right. After completion, the dispensing needle 8 rises, and the feeding mechanism 2, carrying the BC battery 12, moves to the next dispensing point (a line). At this point, the dispensing mechanism 1 descends and dispenses glue from right to left; the dispensing direction is reversed sequentially. During the second dispensing, the scraping mechanism 3 is also on the right side, so the descent of the dispensing mechanism 1 can coordinate with the scraping mechanism 3. This process is repeated to ensure that the scraping operation is performed synchronously each time glue is dispensed. During scraping, the scraper 14 needs to be behind the direction of movement of the dispensing needle 8; therefore, in this application, the scraper 14 is provided in at least two locations, i.e., as shown in the diagram. Figure 1 As shown, the dispensing line is located on both sides of the dispensing needle 8. The dispensing line and the grid lines on the BC battery 12 are positioned accordingly. The "dispensing point" is the starting point of the dispensing line. Since the dispensing direction changes sequentially, the dispensing point is actually the starting point of both ends of the dispensing line. As the dispensing mechanism 1 moves, after one complete dispensing cycle, the movement trajectory forms the dispensing line.

[0028] When dispensing, the dispensing mechanism 1 dispenses glue along the dispensing line, except for changing the dispensing direction from left to right and from right to left. The feeding mechanism 2 drives the BC battery to move, thereby moving the grid line on the top of the BC battery to the dispensing line, thus performing a continuous dispensing operation.

[0029] like Figure 2 The limiting structure includes support columns and limiting plates 10 arranged on both sides of the feeding mechanism 2. The limiting plates 10 have grooves 13 for sliding of the scraping structure. The two ends of the grooves 13 correspond to the lifting points of the dispensing mechanism 1 on both sides of the feeding mechanism 2. The setting direction of the limiting plates 10 and the grooves 13 are both aligned with the dispensing line.

[0030] The scraping structure includes a slider 9 for limiting its sliding within the chute 13, two scrapers 14 located at both ends of the bottom of the slider 9, and a clearance hole located in the middle of the slider 9. The dispensing mechanism 1 includes a dispensing needle 8. When the dispensing mechanism 1 descends, the dispensing needle 8 passes through the clearance hole. When the dispensing mechanism 1 moves laterally, it acts on the slider 9 and causes it to slide. The direction of movement of the slider 9 corresponds to the dispensing line.

[0031] Since the BC battery 12 has different specifications, its thickness also varies. Therefore, the preferred support column is a telescopic column with adjustable height. The height of the support column is adjusted so that the bottom of the scraper 14 matches the height of the top surface of the BC battery 12.

[0032] The scraper 14 has an L-shaped cross-section, and a glue-collecting groove 15 is formed in the middle of its inner side. Preferably, the glue-collecting groove 15 is semi-circular or V-shaped, and the bottom of the scraper 14 forms a configuration that is thick at both ends and thin in the middle. When the scraper 14 moves, the glue scraped by the semi-circular or V-shaped glue-collecting groove 15 can be collected in the glue-collecting groove 15, which can prevent the glue from escaping to the outside and prevent contamination of other areas on the top of the BC battery 12.

[0033] like Figure 1 As shown, the dispensing mechanism 1 includes a lifting structure 5 and a lateral movement structure 4. The lifting structure 5 lowers the dispensing needle 8 to a height that aligns with the BC battery 12, and the lateral movement structure 4 drives the dispensing needle 8 to move along the grid line direction. The feeding mechanism 2 includes a longitudinal movement structure 6 and a mounting section, on which the BC battery 12 is mounted. A clamp 11 is provided on the mounting section. After the BC battery 12 is placed in the mounting area of ​​the mounting section, the clamp 11 presses the BC battery 12 firmly onto the mounting section. The clamp 11 on the mounting section is preferably an electrically operated clamp 11, which automatically clamps and fixes the BC battery 12 after it is placed in the mounting area. Subsequently, it is driven to move by the longitudinal movement structure 6, stopping when it reaches the dispensing line (at which point the grid line of the BC battery corresponds to the dispensing line). At this time, the lifting structure 5 drives the dispensing needle 8 to descend, and then the lateral movement structure 4 drives the dispensing needle 8 to move laterally, dispensing a straight line of glue at the grid line on the surface of the BC battery 12.

[0034] The above-mentioned dispensing mechanism 1 also includes an adhesive tank 7, a pump body, etc. The adhesive tank 7 is equipped with a pressure detection unit to control the dispensing pressure during dispensing, thereby facilitating the control of the amount of adhesive dispensed.

[0035] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An OBB dispensing device suitable for BC batteries, comprising a dispensing mechanism and a feeding mechanism, wherein the BC battery is mounted on the feeding mechanism, and the dispensing mechanism is adapted to descend and laterally dispense glue when the BC battery moves to a dispensing line, wherein the dispensing mechanism forms a dispensing line during lateral dispensing, characterized in that, It also includes a scraping mechanism, which includes a limiting structure and a scraping structure. The limiting structure is adapted to allow the scraping structure to slide on the straight line where the dispensing line is located. When the dispensing mechanism descends, it acts on the scraping structure and causes the scraping mechanism to move synchronously with the dispensing mechanism.

2. The OBB dispensing equipment for BC batteries as described in claim 1, characterized in that, The limiting structure includes support columns and limiting plates arranged on both sides of the feeding mechanism. The limiting plate forms a sliding groove for the scraping structure to slide. The two ends of the sliding groove correspond to the lifting points of the dispensing mechanism on both sides of the feeding mechanism.

3. The OBB dispensing equipment for BC batteries as described in claim 2, characterized in that, The scraping structure includes a slider for limiting sliding in the groove, two scrapers disposed at both ends of the bottom of the slider, and a clearance hole disposed in the middle of the slider. The dispensing mechanism includes a dispensing needle. When the dispensing mechanism descends, the dispensing needle passes through the clearance hole. When the dispensing mechanism moves laterally, it acts on the slider and causes it to slide.

4. The OBB dispensing equipment for BC batteries as described in claim 3, characterized in that, The support column is a height-adjustable telescopic column, and the height of the support column is adjusted so that the bottom of the scraper and the top surface of the BC battery are aligned.

5. The OBB dispensing equipment for BC batteries as described in claim 4, characterized in that, The scraper has an L-shaped cross-section, and a glue storage groove is opened in the middle of the inner side of the scraper.

6. The OBB dispensing equipment for BC batteries as described in claim 5, characterized in that, The glue storage tank is semi-circular or V-shaped, and the inner side of the bottom of the scraper has a structure that is thick at both ends and thin in the middle.

7. The OBB dispensing equipment for BC batteries as described in claim 3, characterized in that, The dispensing mechanism includes a lifting structure and a lateral movement structure. The lifting structure is used to lower the dispensing needle to a height that aligns with the BC battery, and the lateral movement structure is used to drive the dispensing needle to move along the grid line direction.

8. The OBB dispensing equipment for BC batteries as described in claim 7, characterized in that, The feeding mechanism includes a longitudinal movement structure and a mounting part, on which the BC battery is mounted.

9. The OBB dispensing equipment for BC batteries as described in claim 8, characterized in that, The mounting part is provided with a clamp. After the BC battery is placed in the mounting area of ​​the mounting part, the clamp presses the BC battery firmly onto the mounting part.

10. The OBB dispensing equipment for BC batteries as described in claim 4, characterized in that, The dispensing mechanism also includes an adhesive tank, which is equipped with a pressure detection unit.

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