Glue pouring device and photovoltaic junction box production equipment

Abstract

The utility model relates to the technical field of potting of photovoltaic junction boxes, in particular to a potting adhesive device and photovoltaic junction box production equipment. The sealant pouring device comprises two feeding assemblies; and the cleaning assembly communicates with the feeding pipeline, and the cleaning assembly is suitable for driving a cleaning medium to flow in the feeding pipeline under the action of driving force so as to apply driving force to the residual glue in the feeding pipeline and output the residual glue from the discharging end. According to the pouring sealant device provided by the utility model, when the glue in the feeding pipeline is solidified or semi-solidified, the cleaning medium is input from the cleaning port, the cleaning medium can take away the glue in the feeding pipeline and the residual glue in the pipe wall of the feeding pipeline, and the glue is finally output from the discharging end, so that the phenomenon that the glue in the feeding pipeline is blocked by the solidified residual glue is avoided; and shutdown for manual cleaning is needed, so that the production efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic junction box potting, in particular to a potting glue device and photovoltaic junction box production equipment. Background Art

[0002] During the production process of solar photovoltaic modules, in order to prevent the conductive metal components in the junction box (such as battery lead wires, metal solder joints connected to the lead wires, conductive sheets and conductive terminals, etc.) from being exposed to the air and causing surface oxidation and rust, which affects the conductivity, a two-liquid AB glue mixture with insulating properties is generally poured into the junction box of the solar photovoltaic module to cover the conductive metal components in the junction box. After the AB glue two-liquid mixture solidifies, it can effectively protect the diodes in the junction box and achieve the effect of heat dissipation.

[0003] Due to the characteristics of glue A or glue B, solidification will not occur when left alone. Solidification will only occur when glue A and glue B are mixed in a certain ratio (such as 5:1 or 6:1) and then left statically. Or when glue A and glue B are in static contact for a long time, local solidification will occur on the contact surface. As time goes by, the depth of solidification will become greater and greater, and the accumulated solidified residual glue will clog the mixing valve and glue A or glue B guide tube. When the mixing valve, A glue or B glue guide tube is blocked by solidified residual glue, there are generally two ways to deal with it: First, both the A glue and B glue guide tubes do not discharge glue. At this time, the mixing valve needs to be stopped and disassembled. The staff manually cleans the solidified residual glue in the mixing valve, A glue and B glue guide tubes before the normal AB glue potting operation can be resumed; Second, the A glue or B glue guide tube discharges glue on one side. At this time, only a single portion of glue is poured into the junction box body, and the single portion of glue in the junction box body will not solidify. When the subsequent process finds that the glue is not solidified, many junction boxes have already been potted. These potted junction boxes need to be reworked and re-potted with AB glue. At the same time, the mixing valve needs to be stopped and disassembled to check and manually clean the solidified residual glue on one side of the blocking guide tube.

[0004] Therefore, when any of the mixing valve, A glue and B glue guide tubes are blocked by solidified residual glue, the machine needs to be stopped for manual cleaning. If the blockage is not discovered in time, resulting in only a single portion of glue in the junction box, rework is required, which not only increases the workload of production, but also affects the potting efficiency of the photovoltaic junction box, seriously affecting production capacity. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the mixing valve, A glue and B glue guide tubes in the potting glue device of the photovoltaic junction box are easily clogged by solidified residual glue, affecting production capacity, thereby providing a potting glue device that can automatically clean the solidified residual glue in the pipeline.

[0006] In order to solve the above technical problems, the present invention provides a potting glue device, comprising:

[0007] Two feeding assemblies, one feeding assembly is used to output the first rubber material, and the other feeding assembly is used to output the second rubber material, and the feeding assemblies include a feeding pipe and an inlet end and an outlet end provided at both ends of the feeding pipe;

[0008] A cleaning component is connected to the feed pipe and is suitable for driving the cleaning medium to flow in the feed pipe under the action of a driving force, so as to apply a driving force to the residual glue in the feed pipe and output it from the discharge end.

[0009] Optionally, the cleaning assembly includes a cleaning port and a cleaning drive, and the cleaning port is connected to both the feed pipe and the cleaning drive.

[0010] Optionally, it also includes:

[0011] A pneumatic electronic valve is provided in a pipeline between the cleaning port and the cleaning drive member.

[0012] Optionally, a mixing pipeline is further included, the mixing pipeline is connected to the two discharge ends, and the mixing pipeline is suitable for outputting the mixed rubber material.

[0013] Optionally, a storage bucket is further included, which is arranged below the mixing pipeline for collecting waste.

[0014] Optionally, the feeding assembly further includes a feeding solenoid valve, which is provided on the feeding pipe and close to the feeding end, and is suitable for inputting the first rubber material or the second rubber material.

[0015] Optionally, the feeding assembly further includes:

[0016] Two feeding conveying members, each of which is disposed in one feeding pipe, and the feeding conveying members reciprocate along the feeding pipe to open or close the feeding pipe;

[0017] A feeding drive member, wherein the feeding drive member is used to drive the feeding conveying member.

[0018] Optionally, the feeding conveying member includes a main body and an action part, the main body is a cylinder with a diameter smaller than the diameter of the feeding pipe, at least part of the action part is arranged to fit the feeding pipe to open or close the feeding pipe, and a plurality of sealing rings are arranged on the outer peripheral surface of the cylinder at intervals along its axial direction, and the outer peripheral surface of the cylinder and the pipe wall of the feeding pipe are cut off by the sealing ring to form a plurality of closed feeding areas.

[0019] Optionally, a partition is provided in the feed pipe near the discharge end, a through hole is provided on the partition, and the action portion is in the shape of a frustum, and the diameter of the small end of the frustum is consistent with the inner diameter of the through hole.

[0020] Also provided is a photovoltaic junction box production device, comprising the potting glue device described above.

[0021] The technical solution of this utility model has the following advantages:

[0022] 1. The potting glue device provided by the present invention includes two feeding components, one of which is used to output a first glue material, and the other is used to output a second glue material. The feeding components include a feeding pipe and an inlet end and an outlet end provided at both ends of the feeding pipe; a cleaning component, which is connected to the feeding pipe, and the cleaning component is suitable for driving a cleaning medium to flow in the feeding pipe under the action of a driving force, so as to apply a driving force to the residual glue in the feeding pipe and output it from the outlet end.

[0023] The present potting glue device inputs a cleaning medium into the cleaning component when the glue in the feed pipe solidifies or semi-solidifies. Under the action of the driving force, the cleaning medium can remove the glue in the feed pipe and the glue remaining in the pipe wall of the feed pipe, and finally output it from the discharge end. This avoids the problem of stopping the machine for manual cleaning when the feed pipe is blocked by solidified residual glue, which affects the production efficiency. It improves the potting efficiency and increases the production capacity. It can realize a comprehensive automatic cleaning function, effectively prevent the occurrence of glue blockage in the catheter, and the operation method is simple. It is modified based on the original equipment, effectively reduces the cost, and does not affect the reliability of the original components.

[0024] 2. The utility model provides a photovoltaic junction box production device. Since the device adopts the above components, any one of the advantages described above can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural diagram of the potting glue device in the utility model;

[0027] Figure 2 This is a schematic cross-sectional view of the potting glue device in the present invention;

[0028] Description of reference numerals:

[0029] 11. Feed pipe; 12. Feed end; 13. Discharge end; 14. Feed solenoid valve; 15. Feed conveyor; 16. Sealing ring; 17. Partition;

[0030] 21. Cleaning port; 22. Pneumatic electronic valve;

[0031] 3. Mixing pipeline; DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] Reference Figure 1-Figure 2 As shown, this embodiment provides a potting glue device, including:

[0038] Two feeding assemblies, one of which is used to output the first rubber material, and the other of which is used to output the second rubber material, each of which comprises a feeding pipe 11 and an inlet end 12 and an outlet end 13 provided at both ends of the feeding pipe 11;

[0039] The cleaning component is connected to the feed pipe 11 and is suitable for driving the cleaning medium to flow in the feed pipe 11 under the action of a driving force, so as to apply a driving force to the residual glue in the feed pipe 11 and output it from the discharge end 13.

[0040] It is easy to understand that in this embodiment, the two feeding components are symmetrically arranged on both sides of the potting glue device, and the two feeding ends 12 are connected to the equipment storing the glue through pipes. Here, the position of the feeding components is not limited, and normal production work can be ensured.

[0041] It should be noted that the cleaning medium in this embodiment refers to gas, which can be directly selected from air. In other embodiments, nitrogen or other inert gases can also be selected. The first adhesive is adhesive A, and the second adhesive is adhesive B, which are mixed to form adhesive AB.

[0042] As will be readily understood, the cleaning components in this embodiment are located on either side of the two feed assemblies and can operate independently or simultaneously. During production operations, depending on the blockage conditions of the two feed assemblies of the potting device, the feed pipes 11 of either feed assembly can be cleaned or unblocked simultaneously.

[0043] The potting glue device provided in this embodiment is capable of inputting a cleaning medium from the cleaning port 21 when the glue in the feed pipe 11 is solidified or semi-solidified. The cleaning medium can remove the glue in the feed pipe 11 and the glue remaining in the wall of the feed pipe 11, and finally output it from the discharge end 13. This avoids the problem of needing to stop the machine for manual cleaning when the feed pipe 11 is clogged with solidified residual glue, which affects production efficiency. This improves the potting efficiency of the photovoltaic junction box and increases production capacity. It can realize a comprehensive automatic cleaning function, effectively prevent the occurrence of glue blockage in the duct, and has a simple operation method. It is modified based on the original equipment, effectively reduces costs, and does not affect the reliability of the original components.

[0044] Furthermore, the cleaning assembly includes a cleaning port 21 and a cleaning drive member, and the cleaning port 21 is connected to both the feed pipe 11 and the cleaning drive member.

[0045] It is easy to understand that the cleaning port 21 is set on the side close to the feeding end 12 and as far away from the discharging end 13 as possible to clean the entire feeding pipe 11 and avoid the rubber material piling up at a certain point in the feeding pipe 11, which makes it impossible to clean.

[0046] Specifically, the cleaning drive element in this embodiment is a pneumatic cylinder. Since the original feed conveying assembly also uses a pneumatic cylinder as a drive element, only one additional air pipe is required to clean the feed pipe 11, reducing modification costs and increasing the efficiency of the device. Of course, in other embodiments, the cleaning drive element may also be a dedicated pneumatic cylinder, or a separate gas cylinder may be provided.

[0047] Furthermore, it also includes:

[0048] The pneumatic electronic valve 22 is provided in the pipeline between the cleaning port 21 and the cleaning drive member.

[0049] As will be readily understood, in this embodiment, a pneumatic cylinder is used as the cleaning drive. That is, the cylinder is always connected to the feed pipe 11. By providing a pneumatic electronic valve 22, the cleaning assembly can be electrically controlled. When a material break or line blockage occurs on the production line, the pneumatic electronic valve 22 can be controlled to open and close, achieving automatic cleaning.

[0050] Furthermore, it also includes a mixing pipeline 3, which is connected to the two discharge ends 13, and the mixing pipeline 3 is suitable for outputting the mixed rubber material.

[0051] It should be noted that reference Figure 1 As shown, a storage bin with a certain amount of space is provided between the feed end 12 and the mixing pipeline 3. This portion balances the air pressure in the pipeline, allowing the rubber material to flow out of the mixing pipeline 3 under the action of gravity. In this case, the feed pipeline 11 includes a first pipe arranged horizontally outside the storage bin and a second pipe arranged vertically inside the storage bin. The feed end 12 is provided on the first pipe, and the discharge end 13 is provided on the second pipe. The ends of the two second pipes form a "Y" structure, and the end of the "Y" structure extends to the inlet of the mixing pipeline 3.

[0052] It is easy to understand that the mixing pipe is connected to the two discharge ends 13 at the same time for mixing the first rubber material and the second rubber material. Here, the specific length of the mixing pipe is not limited, and the appropriate mixing pipe length can be set according to the type of rubber material selected and the characteristics of the rubber material itself.

[0053] Furthermore, a storage bucket is included, which is arranged below the mixing pipeline 3 for collecting waste.

[0054] Furthermore, the feeding assembly further includes a feeding solenoid valve 14 , which is provided on the feeding pipe 11 and close to the feeding end 12 , and is suitable for inputting the first rubber material or the second rubber material.

[0055] It is easy to understand that the use of the feeding solenoid valve 14 can realize electronically controlled feeding, eliminating the need for manual control of material delivery, making the potting operation more refined and automated.

[0056] Furthermore, the feeding assembly further comprises:

[0057] Two feeding conveying members 15, each of the two feeding conveying members 15 is disposed in one feeding pipe 11, and the feeding conveying member 15 reciprocates along the feeding pipe 11 to open or close the feeding pipe 11;

[0058] The feeding drive member is used to drive the feeding conveying member 15.

[0059] It is easy to understand that the glue is input into the feeding pipe 11 from the feeding end 12. Since the glue body has a certain viscosity, if it only relies on its own fluidity to flow in the feeding pipe 11, it will affect the potting efficiency of the potting glue device. Therefore, a feeding drive is provided to promote the flow efficiency of the glue in the pipe.

[0060] It should be noted that the feeding drive member in this embodiment is a cylinder, which is used to realize the reciprocating motion of the feeding conveying member 15 in the feeding pipe 11. Of course, in other embodiments, a servo motor can also be selected as the feeding drive member.

[0061] Furthermore, the feeding conveying member 15 includes a main body and an action part, the main body is a cylinder with a diameter smaller than the diameter of the feeding pipe 11, at least part of the action part is arranged to fit the feeding pipe 11 to open or close the feeding pipe 11, and a plurality of sealing rings 16 are arranged on the outer peripheral surface of the cylinder at intervals along its axial direction, and the outer peripheral surface of the cylinder and the pipe wall of the feeding pipe 11 are cut off by the sealing ring 16 to form a plurality of closed feeding areas.

[0062] As will be readily understood, the diameter of the main body and the diameter of the feed pipe 11 must be set in a certain ratio to ensure that the amount of rubber delivered by the feed conveyor 15 meets the filling requirements. In this embodiment, to ensure stable material supply, the ratio of the diameter of the feed pipe 11 to the main body is 3:1. In other embodiments, an appropriate ratio can be designed based on the actual filling situation and is not specifically limited here.

[0063] As will be readily understood, the active portion is partially exposed at the discharge end 13 and, driven by the feed drive, intermittently opens and closes the feed pipe 11. When the entire feed assembly stops operating, the active portion closes the discharge end 13, splitting the rubber material in the feed pipe 11 into two parts starting at the active portion. This keeps the rubber material remaining in the feed pipe 11 in a liquid state, preventing it from solidifying. When the cleaning assembly is operating, only the solidified rubber material in the pipe behind the discharge end 13 needs to be blown away.

[0064] Furthermore, a partition 17 is provided in the feed pipe 11 near the discharge end 13, and a through hole is provided on the partition 17. The action portion is in the shape of a frustum, and the diameter of the small end of the frustum is consistent with the inner diameter of the through hole.

[0065] It should be noted that the shape of the action part is a cone, in which the small end of the cone is set toward the input direction of the rubber material, and conforms to the through hole set on the partition 17. This design can enhance the sealing effect of the action part and prevent the rubber material from overflowing from the gap when the material conveying part closes the feed pipe 11.

[0066] Example 2

[0067] An embodiment of the present utility model provides a photovoltaic junction box production device, comprising the potting glue device described in embodiment 1.

[0068] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A potting glue device, characterized in that: include: Two feeding components, one feeding component is used to output a first rubber material, and the other feeding component is used to output a second rubber material, and the feeding components include a feeding pipe (11) and a feeding end (12) and a discharging end (13) provided at both ends of the feeding pipe (11); A cleaning component is connected to the feed pipe (11), and the cleaning component is suitable for driving the cleaning medium to flow in the feed pipe (11) under the action of a driving force, so as to apply a driving force to the residual glue in the feed pipe (11) and output it from the discharge end (13).

2. The potting glue device according to claim 1, characterized in that: The cleaning component comprises a cleaning port (21) and a cleaning drive member, and the cleaning port (21) is communicated with both the feed pipe (11) and the cleaning drive member.

3. The potting glue device according to claim 2, characterized in that: Also includes: A pneumatic electronic valve (22) is provided in a pipeline between the cleaning port (21) and the cleaning drive member.

4. The potting glue device according to claim 1, characterized in that: It also includes a mixing pipeline (3), which is connected to the two discharge ends (13) and is suitable for outputting the mixed rubber material.

5. The potting glue device according to claim 4, characterized in that: It also includes a storage bucket, which is arranged below the mixing pipeline (3) and is used to collect waste.

6. The potting glue device according to claim 1, characterized in that: The feeding assembly further comprises a feeding solenoid valve (14), which is arranged on the feeding pipe (11) and close to the feeding end (12), and is suitable for inputting the first rubber material or the second rubber material.

7. The potting glue device according to any one of claims 1 to 6, characterized in that: The feeding assembly further comprises: Two feeding conveying members (15), the two feeding conveying members (15) are respectively arranged in one feeding pipe (11), and the feeding conveying members (15) reciprocate along the feeding pipe (11) to open or close the feeding pipe (11); A feeding drive member, wherein the feeding drive member is used to drive the feeding conveying member (15).

8. The potting glue device according to claim 7, characterized in that: The feeding conveying member (15) comprises a main body and an action portion, wherein the main body is a cylinder having a diameter smaller than the diameter of the feeding pipe (11), and at least a portion of the action portion is arranged in contact with the feeding pipe (11) to open or close the feeding pipe (11). A plurality of sealing rings (16) are arranged on the outer peripheral surface of the cylinder at intervals along its axial direction, and the outer peripheral surface of the cylinder and the pipe wall of the feeding pipe (11) are cut off by the sealing rings (16) to form a plurality of closed feeding areas.

9. The potting glue device according to claim 8, characterized in that: A partition (17) is provided in the feed pipe (11) near the discharge end (13), and a through hole is provided on the partition (17). The action portion is in the shape of a frustum, and the diameter of the small end of the frustum is consistent with the inner diameter of the through hole.

10. A photovoltaic junction box production equipment, characterized in that: The invention comprises the potting glue device according to any one of claims 1 to 9.

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