CN216153304U

CN216153304U - Laminating device

Info

Publication number: CN216153304U
Application number: CN202120780238.6U
Authority: CN
Inventors: 郑小凡; 孙宇; 高纪凡; 王乐; 许贵军
Original assignee: Trina Solar Co Ltd
Current assignee: Trina Solar Changzhou Technology Co ltd; Trina Solar Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-04-01
Anticipated expiration: 2031-04-15

Abstract

The utility model belongs to the technical field of solar cells, and particularly relates to a laminating device, which comprises: the device comprises a feeding conveying unit, a laminating unit, a discharging conveying unit and a control unit, wherein a first sensor and a second sensor are arranged on the discharging conveying unit and at intervals of M photovoltaic modules respectively, M is more than or equal to 1, the first sensor and the second sensor can detect the number of the modules passing through the positions of the first sensor and the second sensor, the first sensor and the second sensor are connected with the control unit, and the control unit is connected with the laminating unit and can send a control command to control the laminating time of the laminating unit. The utility model improves the intelligent response degree of the laminating device in the laminating process and reduces the yield loss of components in the laminating chamber in the laminating unit caused by component accumulation.

Description

Laminating device

Technical Field

The utility model belongs to the technical field of solar cells, and relates to a laminating device.

Background

In the production process of the photovoltaic module, the lamination process is a very important link, and the photovoltaic glass, the packaging material, the battery, the packaging material, the backboard or backboard glass and the like are bonded together by using a laminating machine under certain temperature, pressure and vacuum conditions to form the photovoltaic module. A complete set of laminating equipment comprises: the device comprises a feeding conveying unit, a laminating machine and a discharging conveying unit. In addition, the time required for lamination is longest in the preceding process.

When the lamination of the module in the laminator chamber is complete, the chamber is opened and the module is transported out for cooling. However, due to the high production of the production line components, the stacking of the components of the discharging conveying unit often occurs in the existing laminating process. Once the assembly is stacked on the discharging conveying unit, the assembly cannot be output and can only be retained in the laminating chamber. Along with the increase of detention time, the subassembly that the lamination was accomplished is detained in laminator lamination cavity and can't flow out in time and cool off, can lead to the subassembly bad even directly to scrap in batches, seriously reduces the yield of subassembly, makes subassembly manufacturing cost very improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem and provides a laminating device which can quickly identify whether the components are stacked in a discharge conveying unit of a laminating process or not and prolong the laminating time when the components are stacked so as to reduce the reject ratio of the components caused by too long time of the components staying in a cavity.

Therefore, the utility model adopts the following technical scheme:

a laminating device, comprising: the device comprises a feeding conveying unit, a laminating unit, a discharging conveying unit and a control unit, wherein a first sensor and a second sensor are arranged on the discharging conveying unit and at intervals of M photovoltaic modules respectively, M is more than or equal to 1, the first sensor and the second sensor can detect the number of the modules passing through the positions of the first sensor and the second sensor, the first sensor and the second sensor are connected with the control unit, and the control unit is connected with the laminating unit and can send a control command to control the laminating time of the laminating unit.

Further, the first sensor and the second sensor may be an infrared sensor, a visual recognition device, a pressure sensor, or a position sensor.

Further, M is more than or equal to 2.

Further, the first inductor and the second inductor are respectively positioned at the feeding end and the discharging end of the discharging conveying unit.

Further, the lamination unit is a laminator.

The utility model judges whether the stacking of the components exists in the subsequent process of the laminating device by improving the laminating equipment and the laminating method, arranging a sensor which can sense the number of the components on the discharging conveying unit and comparing the number of the components at the feeding end and the discharging end of the discharging conveying unit. When there is a stack of components, the lamination time of the lamination unit is extended, and the components are continuously laminated.

In the prior art, when the assembly is accumulated on the production line and the laminate is retained in the uncovered laminate cavity, the high temperature may cause the assembly to have defects of back plate bulge or abnormal conditions such as bubbles. In the technology of the utility model, the laminating chamber is not opened, the laminating time of the laminating unit is prolonged, and the generation of poor components can be effectively avoided.

Compared with the prior art, the utility model has the advantages that:

the intelligent response degree of the laminating device in the laminating process is improved, and the yield loss of components in the laminating chamber in the laminating unit caused by component accumulation is reduced.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: the device comprises a feeding conveying unit 1, a laminating unit 2, a discharging conveying unit 3, a feeding end 3a of the discharging conveying unit, a discharging end 3b of the discharging conveying unit, a first inductor 4, a second inductor 5, a laminating piece 100 and a photovoltaic module 101.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the process of forming the photovoltaic module, a key step is a lamination process, EVA attached to the photovoltaic module is heated and pressed through the lamination process, and the cell, the glass and the back plate/glass are bonded together to form the photovoltaic module. Thus, from a naming standpoint, a photovoltaic module before the lamination process is complete can be referred to as a laminate, and a photovoltaic module or module after the lamination process is complete.

As shown in fig. 1, the present embodiment provides a laminating apparatus, which includes, in order from a conveying direction of a material (i.e., a laminate 100), an input conveying unit 1, a laminating unit 2, an output conveying unit 3, and a control unit. Wherein, laminating unit 2 adopts the laminator among the prior art, and pan feeding conveying unit 1 and ejection of compact conveying unit 3 adopt current laminator conveyor.

The first sensor and the second sensor are respectively arranged on the discharging conveying unit at a certain distance, the distance is at least the distance of one photovoltaic module, the distance of one photovoltaic module is the distance between two opposite side edges of the photovoltaic module on the conveying path of the discharging conveying unit, and the distance can be the length of the photovoltaic module (when the photovoltaic module is conveyed along the length direction) or the width of the photovoltaic module (when the photovoltaic module is conveyed along the width direction).

The discharging conveying unit 3 is provided with a feeding end 3a and a discharging end 3b, and the photovoltaic module after the lamination process is finished is conveyed from the feeding end 3a to the discharging end 3b of the discharging conveying unit 3. Preferably, a first inductor 4 and a second inductor 5 are provided near the infeed end 3a and near the outfeed end 3b of the outfeed conveyor unit 3, respectively.

First inductor 4 and second inductor 5 can be infrared sensor, visual identification device, pressure sensor or position sensor, and first inductor 4 and second inductor 5 can set up in pairs respectively, and the quantity of sensor is with the quantity that can accurately discern photovoltaic module as the principle. In the present embodiment, the first sensor 4 and the second sensor 5 each employ an infrared sensor.

During the lamination process, the first and

second inductors

4 and 5 respectively detect the number of photovoltaic modules 101 passing from their position, recorded as values N1 and N2 respectively, and transmit the values to the control unit, which compares the values of N1 and N2:

when N1 is equal to N2, the laminating device operates normally, no module is stacked in the discharging and conveying unit 3, at this time, the control unit sends out a control command, the laminating device operates normally, and the module is laminated in the laminating unit for a set first time T1; when N1 is greater than N2, indicating that the operation of the laminating device is obstructed, the components are stacked on the discharging conveying unit 3, and at the moment, the control unit sends a control command to enable the laminating unit to prolong the laminating time, the prolonged time lasts for the second time T2, and the components are continuously laminated. N1 and N2 are positive integers greater than 1.

Specifically, depending on the particular assembly, a corresponding first time T1 and second time T2 may be set, such as the first time T1 may be 1000s and the second time T2 may be 120 s. In some extreme cases, after the second time T2 is over, if the detected state is still N1 > N2, a new control command is issued to further extend the laminating time, and the laminating apparatus operates normally until the detected state is N1 — N2.

The laminating device of the utility model works as follows:

s1 the first sensor and the second sensor respectively sense the number of components passing by from their positions, recorded as N1 and N2, respectively, and upload the values N1 and N2 to the control unit in real time,

s2, the control unit compares the sizes of N1 and N2, when N1 is equal to N2, a control command is sent, the laminating device operates normally, and the components are laminated in the laminating unit for a set first time T1; when N1 is more than N2, a control command is issued to enable the laminating unit to prolong the laminating time, the prolonged time lasts for the second time T2, and the assembly is continuously laminated.

Specifically, depending on the particular assembly, a corresponding first time T1 and second time T2 may be set, such as the first time T1 may be 900s and the second time T2 may be 100 s. In some extreme cases, after the second time T2 is over, if the detected state is still N1 > N2, a new control command is issued to further extend the laminating time, and the laminating apparatus operates normally until the detected state is N1 — N2.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.

Claims

1. A laminating device, comprising: the device comprises a feeding conveying unit, a laminating unit, a discharging conveying unit and a control unit, wherein a first sensor and a second sensor are arranged on the discharging conveying unit and at intervals of M photovoltaic modules respectively, M is more than or equal to 1, the first sensor and the second sensor detect the number of the modules passing through the positions of the first sensor and the second sensor, the first sensor and the second sensor are connected with the control unit, and the control unit is connected with the laminating unit and can send a control command to control the laminating time of the laminating unit.

2. The laminating apparatus according to claim 1, wherein: the first sensor and the second sensor may be infrared sensors, visual recognition devices, pressure sensors, or position sensors.

3. The laminating apparatus according to claim 1, wherein: m is more than or equal to 2.

4. The laminating apparatus according to claim 1, wherein: the first inductor and the second inductor are respectively positioned at the feeding end and the discharging end of the discharging conveying unit.

5. The laminating apparatus according to claim 1, wherein: the lamination unit is a laminator.