DE10256497A1 - Separating solar cells that are stacked in magazine - Google Patents

Abstract

The method involves contacting the uppermost cell with a gripping member (1), such as a vacuum chuck, and displacing the gripping member together with the contacted uppermost cell parallel to the adjacent solar cell directly beneath, until the uppermost cell parts from the solar cell beneath. The gripping member is preferably tilted together with the uppermost solar cell. An Independent claim is included for an apparatus for separating solar cells from a stack.

Description

The invention relates to a method for separating arranged in parallel in a magazine and stacked solar cells. The invention further relates to a device for separating stacked solar cells.

The invention is based on the object Method and an apparatus for separating in a magazine to offer stacked solar cells, which are special work reliably.

The task is for the procedure by the features of the characterizing part of the claim 1 solved in connection with the features of the preamble. advantageous Process variants are described in subclaims 2-8. For the device the procedure is characterized by the characteristics of the characteristic part of claim 9 in conjunction with the features of the preamble solved. Advantageous embodiments of the Devices are described in subclaims 10-15.

In the method according to the invention for separating arranged in parallel in a magazine and solar cells stacked on top of each other will first become the top solar cell contacted by a detection element. Thereupon the detection element with the contacted top solar cell parallel to the neighboring one directly below the solar cell until the contacted one top solar cell from the neighboring one directly below Solar cell detached and it was isolated.

In contrast to one as the state of the Technology known vertical lifting of a top solar cell their contacting by a detection element is the inventive method the unwanted Adhering adjacent solar cells, especially the top solar cell avoided on the adjacent solar cell directly underneath.

By moving ("pulling off") the top solar cell parallel to the neighboring solar cell directly below these two neighboring solar cells become reliable from each other Cut.

For further transport of the topmost contacted Solar cell can be the sensing element during the moving process parallel to or following the level of the solar cell be tilted. As a result, further peeling forces occur which adhere to one another in an undesirable manner can prevent neighboring solar cells again.

The detached and isolated solar cell becomes from the detection element to further processing known per se (e.g. to form solar modules) at another location, e.g. on placed on a conveyor belt.

After separating each other stacked solar cells, the detached solar cell is transported further. To increase cycle times, the solar cell can be transported at increased speed carried out become. The movement of the solar cell during the separation can be carried out carefully and at reduced speed, to reliably adhere neighboring solar cells to one another prevention.

Another advantageous The detection element after the replacement of the top solar cell a superimposed Carry out linear and tilting movements and thus the top solar cell particularly quickly from the particularly inclined storage position in the magazine in a horizontal arrangement e.g. for further transport through transfer a conveyor belt.

The separating device according to the invention of stacked solar cells has a linearly movable Detection element for contacting the solar cells. By a linear movement as well as a tilting movement can be stacked in an inclined position Solar cell from this inclined position be transferred to a horizontal position for further transport.

The detection element can be considered as known vacuum suction cups are formed and after contacting the surface of the top solar cell by vacuum formation to capture.

The detection element can be an Known sensor element for determining the time of contacting when contacting the top solar cell e.g. via button or distance sensor have. As a result, the top solar cell can be gentle contacted and without damage detected become. When the contact time is determined, the forward movement of the detection element stopped and the solar cell can be manufactured of the negative pressure detected become.

For flexible transfer of the solar cell into different ones Layers, the detection element is linearly displaceable and / or tiltable, especially on a longitudinal rail, educated. The detection element can be moved on the longitudinal rail and this longitudinal rail can be tilted simultaneously or subsequently.

Through an oblique arrangement of the magazine those arranged parallel to each other and stacked on top of each other Solar cells lean the individual solar cells at an angle directly next to each other on the respective magazine wall. When separating and supersede the captured top solar cell can pass through any over a short distance connecting forces Adjacent lower solar cell adhering to the uppermost solar cell by tilting the Slide the magazine and the acting gravity back into the magazine. So that is reliability of the separation process, if necessary, improved again.

The invention is based on execution examples explained in more detail in the drawing figures. Show it:

1 a first method step of the method according to the invention,

2 a second process step of the process according to the invention,

3 a third process step of the process according to the invention,

4 a fourth process step of the process according to the invention,

5 a fifth step of the method according to the invention and

6 a sixth step of the method according to the invention.

The 1 - 6 show a device for separating in a magazine 2 thin-walled and known solar cells arranged parallel to one another and stacked on top of one another 3 with a detection element 1 in different process steps when separating the solar cells 3 , The solar cells 3 are in the magazine 2 stacked and lean against the wall 4 of the magazine 2 , By tilting the magazine 2 with an angle of inclination 5 The recorded solar cells are at, for example, about 80 ° 3 by the effect of gravity on the wall 4 of the magazine 2 ajar.

The capture element 1 is on a longitudinal rail 6 linear in the direction 7 movably attached.

The device according to the invention can have several magazines 2 . 2 ' have, which all around on a known rotary table 9 are arranged. For the removal of solar cells 3 becomes a magazine at a time 2 in the detection area of the detection element 1 drove and stopped there again. The solar cells are then separated according to the invention 3 through process steps explained in more detail below.

In 1 contacts the sensing element 1 (e.g. a vacuum cup) the top solar cell 3 in the magazine 2 , The capture element 1 is at an edge position 14 the longitudinal rail 6 ,

In the second step according to 2 moves the detection element 1 in the direction 10 linear on the longitudinal rail 6 and thus moves the top solar cell detected 3 parallel to continue in the magazine 2 remaining lower solar cells 3 ' , Any unintentionally taken lower solar cells 3 ' fall when the detection element is moved in parallel 1 back into the magazine 2 back.

In 3 is the isolated top solar cell 3 shown. All other solar cells 3 ' are still in the magazine 2 and look forward to further isolation.

In 4 leads the detection element 1 a tilt in the direction 11 about an axis 12 and transfers the captured top solar cell 3 from their oblique position in the magazine 2 in a horizontal position according to 5 ,

By moving the detection element 1 this moves to an opposite edge position 15 on the longitudinal rail 6 according to 5 for storing the detected solar cell 3 eg on a conveyor belt 13 , After that, the solar cell 3 released and the detection element is reset 1 in a position according to 6 ,

1

sensing element

2

magazine

3

solar cell

4

wall

5

tilt angle

6

longitudinal rail

7

direction

9

turntable

10

direction

11

direction

12

axis

13

conveyor belt

14

margin position

15

margin position

Claims (15)

Process for separating in a magazine solar cells arranged parallel to one another and stacked on top of one another, characterized by the following process steps: - contacting the top solar cell through a detection element, - Move of the detection element with the contacted top solar cell parallel to the neighboring solar cell directly below until detachment the contacted top solar cell directly from the neighboring one solar cell underneath. A method according to claim 1, characterized in that this Detection element with the contacted top solar cell tilted becomes. A method according to claim 2, characterized in that the Tilting of the detection element during the parallel displacement of the detection element compared to the neighboring solar cell arranged directly below. A method according to claim 2, characterized in that the Tilting of the detection element following the displacement of the detection element across from of the neighboring solar cell located directly below. Method according to one of the preceding claims, characterized characterized that the detached top solar cell contacted by the detection element for further processing is filed. Method according to the preceding claims, characterized characterized that the Moving the detection element with the contacted top Solar cell takes place at a reduced speed. Method according to one of the preceding claims, characterized characterized that movements end Detection element after detachment the contacted top solar cell from the one directly below Solar cell with increased Speed performed become. Method according to one of the preceding claims, characterized characterized that after the detachment the uppermost solar cell contacted by the detection element is superimposed Linear and tilting movement of the detection element is carried out. Device for separating solar cells arranged parallel to one another and stacked on top of one another, in particular for carrying out a method according to one of claims 1 to 8, characterized in that the device comprises a linearly movable detection element ( 1 ) for contacting the solar cells ( 3 ) having. Device according to claim 9, characterized in that the detection element ( 1 ) is designed as a vacuum cup. Apparatus according to claim 9 or 10, characterized in that the detection element ( 1 ) a sensor element to determine the time of contact when contacting the top solar cell ( 3 ) having. Device according to one of claims 9 - 11, characterized in that the detection element ( 1 ) linearly displaceable on a longitudinal rail ( 6 ) is attached. Device according to claim 12, characterized in that the longitudinal rail ( 6 ) is designed to be tiltable. Device according to one of claims 9 - 13, characterized in that the magazine ( 2 ) to accommodate the solar cells ( 3 ) is arranged inclined. Device according to claim 14, characterized in that the magazine ( 2 ) is arranged at an angle of inclination of approximately 80 ° to the right of way.