CN219405747U

CN219405747U - Screen printing screen frame for solar cell

Info

Publication number: CN219405747U
Application number: CN202223033474.5U
Authority: CN
Inventors: 黄志斌; 陈延; 雷金波; 曹林; 陈阳泉; 戴亮亮; 卢发树; 柯雨馨; 许光荣
Original assignee: Yangguang Zhongke Fujian Energy Co ltd
Current assignee: Yangguang Zhongke Fujian Energy Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-07-25
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a screen printing screen frame for solar cells. The net frame comprises: the screen frame 10 is a cuboid with a height smaller than the length and the width, the side faces of the cuboid are the faces formed by the length and the height of the cuboid, the notch 11 is a notch on the edge of the screen frame 10, which is long and has no groove 13, and the first groove 12, the second groove 13 and the third groove 14 are arranged on the side face of the screen frame 10. The method reduces the poor sleeve deviation ratio from original 0.20% to below 0.04%, has obvious sleeve deviation improvement effect, reduces the weight of an old net frame, saves the raw material cost of the net frame, solves the problem of abrasion of a machine mechanism, and reduces the load of a motor during the running of the machine.

Description

Screen printing screen frame for solar cell

Technical Field

The utility model relates to the technical field of solar cell circuit board printing, in particular to a screen printing screen frame for solar cells.

Background

In the screen printing process of the solar cell, a screen frame is manufactured through a screen frame and a screen gauze placed on a screen-tensioning platform.

In the photovoltaic industry, screen printing is mainly applied to electrode forming of batteries, and printing is performed by utilizing the basic principle that a part of mesh of a screen pattern is permeable to slurry and a part of mesh of a non-image-text is impermeable to slurry. The paste is poured into one end of the screen during printing, and a certain pressure is applied to the paste part of the screen by a scraper, and the screen moves towards the other end of the screen. The slurry is pressed from the mesh of the pattern portion onto the substrate by the squeegee while being moved.

Therefore, whether the accuracy of the attaching position of the mesh frame and the base material of the cell meets the standard is a key for determining whether the solar cell can be used in production and whether the yield of the whole production line meets the standard.

At present, the traditional net frame shown in fig. 1 is mostly made of a whole aluminum material through the steps of hollowing, adding grooves, punching and the like, and the traditional net frame is large in thickness, small in grooves and large in thickness in unnecessary places.

The screen frame can cause abrasion of a machine mechanism and reduce the load of a motor when the machine runs, so that the overprinting stability of the printer is affected, the poor proportion of the overprinting is up to 0.20%, and the poor proportion of the overprinting is caused to the yield of the whole production line.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a screen printing frame for solar cells, the frame comprising:

the screen frame 10 is a cuboid with the height smaller than the length and the width, and the side surface of the screen frame is a surface formed by the length and the height of the screen frame;

the cut 11 is a notch on the side of the frame 10 that is long and has no groove 15;

the first groove 12, the second groove 13 and the third groove 14 are provided at the side of the frame 10.

Preferably, the notch 11 is a notch which is symmetrical along the central axis of the net frame and completely removes the original plate, the notch of the notch 11 makes the original plate form a right angle, and the central axis is perpendicular to the midpoint of the long side.

Preferably, the first recess 12 is a notch at the midpoint of the long side of the frame side. The second groove 13 is a notch on one side of a groove 15 on the axis perpendicular to the long side at the midpoint of the long side of the side surface of the net frame. The third groove 14 is a notch farther from the midpoint of the long side than the first groove 12.

Therefore, the method can reduce the poor sleeve deviation ratio from original 0.20% to below 0.04%, has obvious sleeve deviation improvement effect, reduces 31.4% weight of the old screen frame, is beneficial to operators to assemble and disassemble the screen plate, saves the screen frame raw material cost, solves the problem of machine mechanism abrasion, and reduces the load of a motor when a machine runs, thereby influencing the printing press sleeve printing stability and the production line yield.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram of a prior art solar cell frame construction;

FIG. 2 is a diagram of a solar cell frame structure according to an embodiment of the present utility model;

FIG. 3 is a diagram of a side view of a solar cell frame according to an embodiment of the present utility model;

fig. 4 is a comparative diagram of a conventional solar cell frame and a solar cell frame of the present utility model.

In the attached drawings, 10, a net frame; 11. a notch; 12. a first groove; 13. a second groove; 14. a third groove; 15. a groove; 16. a first annular frame; 17. a second annular frame; 20. an existing net frame.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," "axis," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model or simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In some embodiments of the present utility model, as shown in fig. 2, a screen printing frame for solar cells, specifically:

the frame 10 comprises a first annular frame 16, a second annular frame 17, a cut 11, a first groove 12, a second groove 13 and a third groove 14.

the screen frame 10 is made of aluminum;

the screen frame 10 is used for screen printing of solar cells, and the thickness of the screen frame is less than 10 cm;

the inner wall of the first annular frame 16 is fixedly connected with the outer periphery of the second annular frame 17, the front face of the second annular frame 17 is located behind the front face of the first annular frame 16, the back face of the first annular frame 16 is located in front of the back face of the second annular frame 17, and the first annular frame 16 and the second annular frame 17 are square frames.

the notch 11 is a notch which is symmetrical along the central axis of the net frame and is used for completely removing the original plate, and the notch of the notch 11 enables the original plate to be in a right angle.

The central axis is perpendicular to the midpoint of the long side.

As shown in fig. 3, the first groove 12, the second groove 13 and the third groove 14 are provided at the side of the frame 10, specifically:

the first groove 12 is a notch on the midpoint of the long side of the screen frame. The second groove 13 is a notch on one side of a groove 15 on the axis perpendicular to the long side at the midpoint of the long side of the side surface of the net frame. The third groove 14 is a notch farther from the midpoint of the long side than the first groove 12.

The first groove 12 is a notch on one side of the axis of two sides of the net frame. The second annular frame 17 is a notch in the middle of the two side axes of the net frame, and the third groove 14 is a notch which is not the same as the first groove 12 on one side of the two side axes of the net frame.

The cutout 11 is located at the front end of the first annular frame 16.

The screw holes 3 are symmetrically distributed along the central axis of the screen frame, more than 2 screw holes are arranged, and screws are arranged through the screw holes 3 for installation of the screen.

Wherein a plurality of screw holes are formed in the plate surface formed by the first annular frame 16 and the second annular frame 17.

The first annular frame 16 has four rounded corners, and the four rounded corners are respectively provided with screw holes.

Wherein the second annular frame 17 has four rounded corners and is internally a through hole or recess.

In some embodiments of the present utility model, the notch 11 is a rectangular notch formed by cutting, milling, stamping, turning, or the like.

In some embodiments of the present utility model, the first annular frame 16 is integrally formed by high temperature compression molding using a precision mold.

Therefore, the effect of the embodiment of the present application, as shown in fig. 4, is that it greatly reduces the thickness of the solar cell frame.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "particular examples," "one particular embodiment," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present utility model is not limited to the above preferred embodiments, and any person skilled in the art, within the scope of the present utility model, may apply to the present utility model, and equivalents and modifications thereof are intended to be included in the scope of the present utility model.

Claims

1. A solar cell screen printing frame comprising:

the screen frame (10) is a cuboid with the height smaller than the length and the width, and the side surface of the screen frame is a surface formed by the length and the height of the screen frame;

the notch (11) is a notch on the edge of the long and non-groove (15) of the screen frame (10);

the first groove (12), the second groove (13) and the third groove (14) are arranged on the side face of the screen frame (10).

2. A frame as claimed in claim 1, wherein the cut (11) is a complete removal of the original sheet material cut symmetrically along a central axis of the frame, said central axis being perpendicular to the mid-point of the long sides.

3. A frame as claimed in claim 2, wherein the notches of the cut-outs (11) make the original sheet material at right angles.

4. A frame as claimed in claim 1, wherein the first recess (12) is a notch at the midpoint of the long side of the frame.

5. A frame as claimed in claim 1, wherein the second recess (13) is a recess in the side of the frame at the side of the longer side at the midpoint of the longer side at the side of the frame at the side of the recess (15).

6. The frame of claim 1, wherein the third groove (14) is a notch further from the midpoint of the long side than the first groove (12).