CN212848443U

CN212848443U - Photovoltaic solder strip for photovoltaic module

Info

Publication number: CN212848443U
Application number: CN202021491718.2U
Authority: CN
Inventors: 徐叶文; 刘亮; 赵皓; 费韬韬
Original assignee: Huanyu Photovoltaic Technology Changzhou Co Ltd
Current assignee: Huanyu Photovoltaic Technology Changzhou Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-30
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a photovoltaic solder strip technical field, and disclose. A photovoltaic solder strip for photovoltaic module, includes the solder strip body, both sides of the solder strip body are provided with inclined planes, two through holes are arranged in the solder strip body, the surface of the solder strip body is wrapped with a coating, the utility model discloses a set both sides of the solder strip body as inclined planes, reflect a part of sunlight irradiated on the photovoltaic solder strip to the battery panel, improve the absorption efficiency of the battery panel to the sunlight, the space formed by the inclined planes and the battery panel on both sides of the solder strip leaves a certain deformation space when the solder strip is heated and deformed, ensure that the battery panel can not be crushed due to the deformation extrusion of the solder strip; through setting up this body both sides of will welding the area into the inclined plane, increased the area of contact of welding area with the air, its cooling effect accelerates, improves the conduction efficiency of welding the area, and filling material absorbs the heat of welding the area and radiates out through the louvre, has guaranteed the electrically conductive effect and the life of welding the area.

Description

Photovoltaic solder strip for photovoltaic module

Technical Field

The utility model relates to a photovoltaic solder strip technical field specifically is a photovoltaic solder strip for photovoltaic module.

Background

The photovoltaic solder strip is also called a tinned copper strip or a tinned copper strip, is a current dividing and converging strip and an interconnecting strip, is applied to connection between photovoltaic module cells, and plays an important role in conducting and gathering electricity. The solder strip is an important raw material in the welding process of the photovoltaic module, the quality of the solder strip directly affects the current collection efficiency of the photovoltaic module, and the power of the photovoltaic module is greatly affected. At present, a commonly used photovoltaic welding strip is flat and strip-shaped, after the commonly used photovoltaic welding strip is welded with a solar cell to form a component, light irradiates the photovoltaic welding strip and is almost totally reflected to the air, only a very small part of light can be diffusely reflected to a cell, so that the light shielded by the photovoltaic welding strip cannot be absorbed by the solar cell, and the utilization rate of the solar cell to light is reduced. And certain heat can be generated in the process of conducting current by the welding strip, and the welding strip can deform after being used for a period of time, so that the cell is cracked, and the power generation capacity of solar energy is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic solder strip for photovoltaic module reaches the straight line reflection effect that reduces photovoltaic solder strip, improves the purpose of photovoltaic module's power, avoids photovoltaic solder strip to generate heat to warp and leads to the battery cracked.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a photovoltaic solder strip for photovoltaic module, includes welds the area body, it sets up the inclined plane to weld area body both sides, the inside of welding the area body is provided with two through-holes, it has the coating to weld area body surface coating, it is provided with the louvre to weld area body both sides, the louvre sets up with the through-hole intercommunication.

Preferably, the welding strip body is made of refined tough oxygen-free copper and has the thickness of one millimeter.

Preferably, the inclination angle of the inclined plane is 30-40 degrees, and the surface of the inclined plane is coated with a reflective material which is a tin-lead alloy.

Preferably, the length of the through hole is consistent with that of the solder strip body, and the diameter of the through hole is 0.25 mm.

Preferably, the material used by the coating is tin, the thickness range of the single-side coating is 0.01-0.05 mm, the coating is uniform, and the surface is bright and smooth.

Preferably, a filling material is placed in the through hole, and the filling material is graphite.

Preferably, the diameter of each heat dissipation hole is 0.1mm, a breathable film is installed at one end, away from the through hole, of each heat dissipation hole, and the distance between every two heat dissipation holes is 3 cm.

The utility model provides a photovoltaic solder strip for photovoltaic module. The method has the following beneficial effects:

the utility model sets the two sides of the welding strip body as the inclined planes, and reflects part of sunlight irradiated on the photovoltaic welding strip to the battery panel, thereby improving the absorption efficiency of the battery panel to the sunlight; the coating of the middle plane of the welding strip body is a tin layer to ensure the welding effect of the welding strip and avoid the condition of insufficient welding; the space formed by the inclined planes and the battery panel on the two sides of the welding strip is a certain deformation space for the welding strip to generate heat and deform, so that the battery panel is prevented from being crushed due to deformation and extrusion of the welding strip; the two sides of the welding strip body are provided with the inclined planes, so that the contact area of the welding strip and air is increased, the cooling effect of the welding strip is accelerated, and the conduction efficiency of the welding strip is improved; through set up the through-hole and place the filler material graphite inside taking the body welding, the filler material absorbs the heat of taking welding and radiates out through the louvre, has further strengthened the radiating effect who takes the body welding, has guaranteed the electrically conductive effect and the life who takes welding.

Drawings

FIG. 1 is a side view cross-sectional structure of the present invention;

fig. 2 is a front sectional view of the base of the present invention.

In the figure: 1 welding strip body, 2 inclined planes, 3 through holes, 4 coatings, 5 filling materials and 6 heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-2, the utility model provides a technical solution: a photovoltaic solder strip for a photovoltaic module comprises a solder strip body 1, wherein the solder strip body 1 is made of refined tough oxygen-free copper and is one millimeter thick, inclined planes 2 are arranged on two sides of the solder strip body 1, the inclination angle of each inclined plane 2 is 30-40 degrees, a reflective material is coated on the surface of each inclined plane 2, the material is a tin-lead alloy, one part of sunlight irradiated on the photovoltaic solder strip is reflected onto a battery panel by arranging the two sides of the solder strip body 1 as the inclined planes 2, the absorption efficiency of the battery panel on the sunlight is improved, the middle plane part of the solder strip body 1 ensures the welding effect of the solder strip, the condition of false welding is avoided, a certain deformation space is reserved when the solder strip generates heat and deforms by the space formed by the inclined planes 2 and the battery panel on the two sides of the solder strip, and the battery panel is prevented from being crushed due; two through holes 3 are arranged in the welding strip body 1, the length of each through hole 3 is consistent with that of the welding strip body 1, the diameter of each through hole 3 is 0.25mm, a filling material 5 is placed in each through hole 3, the filling material 5 is graphite, the contact area between the welding strip and air is increased by arranging the inclined planes 2 on the two sides of the welding strip body 1, the cooling effect of the welding strip is accelerated, the conduction efficiency of the welding strip is improved, the through holes 3 are arranged in the welding strip body 1, the graphite of the filling material 5 is placed, the filling material 5 absorbs heat of the welding strip and is diffused out through heat dissipation holes 6, the heat dissipation effect of the welding strip body is further enhanced, the conductive effect and the service life of the welding strip are ensured, the surface of the welding strip body 1 is coated with a coating 4, the material used for the coating 4 is tin, the thickness range of the single-side coating is 0.01-0.05 mm, the coating is uniform, the surface is bright, the heat dissipation holes 6 are communicated with the through holes 3, the diameter of each heat dissipation hole 6 is 0.1mm, a breathable film is installed at one end, away from the through holes 3, of each heat dissipation hole 6, and the distance between every two heat dissipation holes 6 is 3 cm.

The working principle is as follows: the plane with the coating 4 in the middle of the welding strip body 1 facilitates welding of the welding strip, the inclined planes 2 on the two sides of the welding strip body 1 reflect part of sunlight irradiated on the photovoltaic welding strip to the battery panel, absorption efficiency of the battery panel to the sunlight is improved, and a certain deformation space is reserved in the space formed by the inclined planes 2 and the battery panel on the two sides of the welding strip when the welding strip is heated and deformed, so that the battery panel is prevented from being crushed due to deformation and extrusion of the welding strip; weld and take 1 both sides of this body to set up to inclined plane 2, increased and welded the area of contact with the air, its cooling effect accelerates, improves the conduction efficiency who welds the area, welds 1 inside through-hole 3 that sets up of area body and places filling material 5 graphite, and filling material 5 absorbs the heat that welds the area and through the 6 effluviums of louvre, has further strengthened the radiating effect who welds the area body, has guaranteed the electrically conductive effect and the life who welds the area.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A photovoltaic solder strip for photovoltaic modules, comprising a solder strip body (1), characterized in that: the welding strip is characterized in that two sides of the welding strip body (1) are provided with inclined planes (2), two through holes (3) are formed in the welding strip body (1), a coating (4) is wrapped on the surface of the welding strip body (1), heat dissipation holes (6) are formed in two sides of the welding strip body (1), and the heat dissipation holes (6) are communicated with the through holes (3).

2. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: the welding strip body (1) is made of refined tough oxygen-free copper and is one millimeter thick.

3. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: the inclination angle of the inclined plane (2) is 30-40 degrees, and the surface of the inclined plane (2) is coated with a reflective material which is a tin-lead alloy.

4. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: the length of the through hole (3) is consistent with that of the welding strip body (1), and the diameter of the through hole is 0.25 mm.

5. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: the coating (4) is made of tin, the thickness of the single-side coating ranges from 0.01 mm to 0.05mm, the coating is uniform, and the surface is bright and smooth.

6. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: and a filling material (5) is placed in the through hole (3), and the filling material (5) is graphite.

7. A photovoltaic solder strip for a photovoltaic module according to claim 1, characterized in that: the diameter of each heat dissipation hole (6) is 0.1mm, a breathable film is installed at one end, away from the through hole (3), of each heat dissipation hole (6), and the distance between every two heat dissipation holes (6) is 3 cm.