Solar photovoltaic module plastic package structure convenient for reversing

Abstract

The utility model provides a solar photovoltaic module plastic package structure convenient for reversing, comprising a lead frame and a plastic package body, the lead frame is composed of a positive electrode frame and a negative electrode frame, and the positive electrode frame and the negative electrode frame are oppositely arranged; a bonding area is arranged on one side, close to the negative electrode frame, of the positive electrode frame, a slide island is arranged on one side, close to the positive electrode frame, of the negative electrode frame, the bonding area and the slide island are rotationally and symmetrically matched, and the plastic package body is plastically packaged on the outer sides of the slide island and the bonding area; a first turnover section is fixedly arranged on one side, far away from the cathode frame, of the anode frame, a second turnover section is fixedly arranged on one side, far away from the anode frame, of the cathode frame, and the fixing clamp is fixedly connected with any one of the first turnover section and the second turnover section. According to the utility model, the position relationship between the bonding area and the slide island is adjusted to be rotationally symmetrical distribution, so that an installer can conveniently and accurately install; and the two ends of the lead frame are fixedly provided with the turnover sections connected with the fixing frame, so that the possibility that the plastic package structure of the solar photovoltaic module is convenient to reverse is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module packaging technical field especially, it relates to a solar photovoltaic module plastic package structure convenient for reversing. BACKGROUND

[0002] Solar photovoltaic module is the chip module in photovoltaic module, and the photovoltaic module includes lead frame and plastic package body, and the lead frame includes positive frame and negative frame, and the positive frame and the negative frame are provided with slide island and bonding area respectively, the slide island is connected with chip, and the chip is bonded with the bonding area through bonding wire, so as to realize the bonding electrical connection of the positive frame and the negative frame, and the positive frame and the negative frame are welded with lead wire, and the lead wire is connected with solar photovoltaic module, and the current solar photovoltaic module plastic package structure has the following problems:

[0003] 1) the installation between the fixed clamp and the positive frame and the negative frame needs to rely on the setting position of the folding section to determine, and at the same time needs to rely on the positioning groove body with different spacing set in the upper and lower ends of the lead frame to judge the installation direction;

[0004] 2) the positive frame and the negative frame are provided with a plurality of fixed hole grooves at the same time, and the positioning groove body is provided on the outer edge of the positive frame and the negative frame, and the installation needs to be completed according to the fixed hole groove and the positioning groove body at the same time;

[0005] 3) the bonding area and the slide island are combined with the plastic package body through horizontal cooperation, and the combination strength is poor. INVENTION CONTENTS

[0006] The utility model solves the technical problem that the prior art has defects, and provides a solar photovoltaic module plastic package structure convenient for reversing to solve one or more problems in the prior art.

[0007] To solve the above technical problem, the utility model adopts the technical scheme of a solar photovoltaic module plastic package structure convenient for reversing, which comprises a lead frame and a plastic package body, the lead frame is composed of a positive frame and a negative frame, and the positive frame and the negative frame are arranged oppositely.

[0008] A bonding area is arranged on the side of the positive frame close to the negative frame, a slide island is arranged on the side of the negative frame close to the positive frame, the bonding area and the slide island are rotationally symmetrical and connected, and the plastic package body is plastic packaged outside the slide island and the bonding area.

[0009] A first folding section is fixedly arranged on the side of the positive frame away from the negative frame, a second folding section is fixedly arranged on the side of the negative frame away from the positive frame, and the fixed clamp is fixedly connected with any one of the first folding section and the second folding section.

[0010] Further, the bonding region is the same width as the slide island, and the length of the bonding region and the length of the slide island are not greater than the width of the lead frame.

[0011] Further, the length of the bonding region is not greater than the length of the slide island.

[0012] Further, a plurality of combination through holes are equidistantly arranged between the bonding region and the positive electrode frame in the vertical direction, and a plurality of combination through holes are equidistantly arranged between the slide island and the negative electrode frame in the vertical direction.

[0013] Further, a tin storage groove is arranged on the front surface of the positive electrode frame and the negative electrode frame outside the plastic package.

[0014] Further, a positive electrode mark and a negative electrode mark are respectively engraved on the front surface of the positive electrode frame and the negative electrode frame.

[0015] Further, the first folded section or the second folded section is folded towards the back surface of the lead frame, and the fixed clip is arranged in the same direction as the first folded section or the second folded section.

[0016] Further, the width of the first folded section and the second folded section is less than the width of the lead frame.

[0017] Further, a first connecting hole and a second connecting hole are fixedly arranged at the top corner of the end of the negative electrode frame away from the bonding region, and a third connecting hole and a first connecting groove are fixedly arranged at the top corner of the end of the positive electrode frame away from the slide island; a second connecting groove is arranged between the tin storage groove and the bonding region and between the tin storage groove and the slide island.

[0018] Further, the first connecting hole, the second connecting hole and the third connecting hole have the same diameter, and the width of the first connecting groove is the same as the diameter of the third connecting hole.

[0019] Compared with the prior art, the beneficial effects of the utility model include: by adjusting the positional relationship between the bonding region and the slide island to be distributed along the width direction of the lead frame in the plastic package, compared with being distributed along the length direction of the lead frame, the combination strength between the positive electrode frame and the negative electrode frame and the plastic package can be effectively improved; the connecting hole and the connecting groove are arranged to accurately install and position the positive electrode frame and the negative electrode frame; and the folded sections are fixedly arranged at the two ends of the lead frame to facilitate connection with the fixed frame, so that the solar photovoltaic module plastic package structure can be easily reversed. BRIEF DESCRIPTION OF DRAWINGS

[0020] The disclosure of the present application will be described with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0021] Figure 1 The top view structure of the solar photovoltaic module plastic sealing structure convenient for reversing according to an embodiment of the present application is schematically shown;

[0022] Figure 2 The top view structure of the solar photovoltaic module plastic sealing structure convenient for reversing according to an embodiment of the present application is schematically shown;

[0023] Figure 3 The top view structure of the lead frame of the solar photovoltaic module plastic sealing structure convenient for reversing according to an embodiment of the present application is schematically shown;

[0024] Figure 4 The top view structure of the lead frame of the solar photovoltaic module plastic sealing structure convenient for reversing according to another embodiment of the present application is schematically shown.

[0025] Reference signs in the drawings: 1-plastic sealing body, 2-lead frame, 21-positive electrode frame, 211-bonding area, 212-positive electrode mark, 22-negative electrode frame, 221-carrier island, 222-negative electrode mark, 3-tin storage groove, 4-combination through hole, 5-first folding section, 6-second folding section, 7-fixing clamp, 8-first connecting hole, 9-second connecting hole, 10-third connecting hole, 11-first connecting groove, 12-second connecting groove. DETAILED DESCRIPTION

[0026] It is easy to understand that according to the technical scheme of the present application, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical scheme of the present application, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the present application.

[0027] Figure 1 The top view structure of the solar photovoltaic module plastic sealing structure convenient for reversing according to an embodiment of the present application is schematically shown; Figure 2 The top view structure of the solar photovoltaic module plastic sealing structure convenient for reversing according to an embodiment of the present application is schematically shown.

[0028] As Figure 1 and Figure 2As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure.

[0029] Figure 3 As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure. Figure 4 As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure.

[0030] As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure. Figure 3 As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure. Figure 4 As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure.

[0031] As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure.

[0032] As shown in the figure, a solar photovoltaic module plastic sealing structure facilitating commutation comprises a lead frame 2 and a plastic sealing body 1, wherein the lead frame 2 is composed of a positive electrode frame 21 and a negative electrode frame 22, the positive electrode frame 21 and the negative electrode frame 22 are oppositely arranged, and the plastic sealing body 1 is used to fix and combine the opposite ends of the positive electrode frame 21 and the negative electrode frame 22 to form the solar photovoltaic module plastic sealing structure.

[0033] A tin storage groove 3 is arranged on the outer side of the front surface of the positive electrode frame 21 and the negative electrode frame 22, and is a groove structure with a concave front surface and a convex back surface, which is processed by sinking operation. The positive electrode frame 21 and the negative electrode frame 22 are respectively marked with a positive electrode mark 212 and a negative electrode mark 222, which can help to quickly identify the positive electrode frame 21 and the negative electrode frame 22, and facilitate accurate installation.

[0034] As shown in Figure 3 or Figure 4 , a first folding section 5 is fixedly arranged on the side of the positive electrode frame 21 away from the negative electrode frame 22, and a second folding section 6 is fixedly arranged on the side of the negative electrode frame 22 away from the positive electrode frame 21. A fixed clamp 7 is fixedly connected with any one of the first folding section 5 and the second folding section 6. The first folding section 5 or the second folding section 6 is folded towards the back surface of the lead frame 2, and the fixed clamp 7 is in the same direction as the first folding section 5 or the second folding section 6. When the fixed clamp 7 is arranged, it only needs to be arranged by the first folding section 5 or the second folding section 6, without the need to adjust the relative position relationship between the positive electrode frame 21 and the negative electrode frame 22 and the fixing mode of the plastic package 1 to the bonding area 211 and the slide island 221. That is, when the lead frame 2 is processed, it can be processed according to a unified specification, and then the fixed clamp 7 is connected and fixed with any one of the first folding section 5 or the second folding section 6 according to different installation needs, effectively reducing the installation difficulty of the fixed clamp 7. During the installation of the fixed clamp 7, only the front surface of the positive electrode mark 212 and the negative electrode mark 222 needs to be judged. It is worth noting that the width of the first folding section 5 and the second folding section 6 is less than the width of the lead frame 2.

[0035] A first connecting hole 8 and a second connecting hole 9 are fixedly arranged at the top corner of the end of the negative electrode frame 22 away from the bonding area 211, and a third connecting hole 10 and a first connecting groove 11 are fixedly arranged at the top corner of the end of the positive electrode frame 21 away from the slide island 221. A second connecting groove 12 is arranged between the tin storage groove 3 and the bonding area 211, and between the tin storage groove 3 and the slide island 221. The first connecting hole 8, the second connecting hole 9, and the third connecting hole 10 have the same hole diameter, and the width of the first connecting groove 11 is the same as the diameter of the third connecting hole 10. The side positioning groove is cancelled on the positive electrode frame 21 and the negative electrode frame 22, and the first connecting groove 11 is used as an auxiliary positioning. The first connecting groove 11 is transformed from the hole groove body with the same hole diameter as the first connecting hole 8, the second connecting hole 9, and the third connecting hole 10 arranged at the top corner of the lead frame 2, and has the functions of positioning and fixing. The side positioning groove for auxiliary positioning is not needed on the periphery of the lead frame 2, and the direction of the lead frame 2 does not need to be judged by the direction of the side positioning groove. Only the direction of the fixed clamp 7 needs to be judged, which facilitates accurate installation.

[0036] In practical application, the chip is welded on the slide island 221, the slide island 221 and the bonding area 211 are bonded through the bonding wire, the plastic package body 1 is plastic packaged outside the slide island 221 and the bonding area 211 of the positive electrode frame 21 and the negative electrode frame 22 through the combination through hole 4, that is, the solar photovoltaic module plastic package structure is made, the lead frame 2 structure is positioned through the first connecting hole 8, the second connecting hole 9, the third connecting hole 10, the first connecting groove 11 and the second connecting groove 12, then the fusible tin liquid is poured into the tin storage groove 3, the wire is inserted into the tin storage groove 3, the wire is connected with the positive electrode frame 21 or the negative electrode frame 22, and the solar photovoltaic module plastic package structure is electrically connected through the wire, and the wire on one side is clamped and fixed on the fixed clamp 7, so that the wire is prevented from being pulled off by external force.

[0037] In the conventional solar photovoltaic module plastic package structure, the position relationship between the bonding area 211 and the slide island 221 is adjusted to be distributed along the width direction of the lead frame 2 in the plastic package body 1, compared with being distributed along the length direction of the lead frame 2, the bonding strength between the positive electrode frame 21 and the negative electrode frame 22 and the plastic package body 1 can be effectively improved; the connecting hole and the connecting groove are arranged to accurately position and fix the positive electrode frame 21 and the negative electrode frame 22; and the folding section is arranged at both ends of the lead frame 2, which is convenient for connecting with the fixed frame, so that the solar photovoltaic module plastic package structure can be conveniently reversed.

[0038] The technical scope of the utility model is not only limited to the content in the above description, and the person skilled in the art can make various deformations and modifications to the above embodiment without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A plastic encapsulation structure for a solar photovoltaic module that facilitates commutation, characterized in that, It includes a lead frame (2) and a molding compound (1), wherein the lead frame (2) is composed of a positive electrode frame (21) and a negative electrode frame (22), and the positive electrode frame (21) and the negative electrode frame (22) are arranged opposite to each other; A bonding region (211) is provided on the side of the positive electrode frame (21) near the negative electrode frame (22), and a substrate island (221) is provided on the side of the negative electrode frame (22) near the positive electrode frame (21). The bonding region (211) and the substrate island (221) are rotate symmetrically connected. The encapsulating body (1) is encapsulated on the outside of the substrate island (221) and the bonding region (211). A first folding section (5) is fixedly provided on the side of the positive electrode frame (21) away from the negative electrode frame (22), and a second folding section (6) is fixedly provided on the side of the negative electrode frame (22) away from the positive electrode frame (21). The fixing clip (7) is fixedly connected to either the first folding section (5) or the second folding section (6).

2. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, The bonding region (211) has the same width as the wafer island (221), and the sum of the length of the bonding region (211) and the length of the wafer island (221) is not greater than the width of the lead frame (2).

3. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 2, characterized in that, The length of the bonding region (211) is not greater than the length of the substrate island (221).

4. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, A plurality of bonding through holes (4) are provided at equal vertical intervals between the bonding region (211) and the positive electrode frame (21), and the same number of bonding through holes (4) as on the positive electrode frame (21) are also provided at equal vertical intervals between the substrate island (221) and the negative electrode frame (22).

5. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, A tin storage tank (3) is provided on the front side of the positive electrode frame (21) and the negative electrode frame (22) outside the plastic encapsulation body (1).

6. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, Positive electrode mark (212) and negative electrode mark (222) are respectively engraved on the front of the positive electrode frame (21) and the negative electrode frame (22).

7. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, The first folding segment (5) or the second folding segment (6) is folded toward the back of the lead frame (2), and the fixing clip (7) is oriented in the same direction as the first folding segment (5) or the second folding segment (6).

8. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 7, characterized in that, The widths of the first folding segment (5) and the second folding segment (6) are both smaller than the width of the lead frame (2).

9. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 1, characterized in that, A first connecting hole (8) and a second connecting hole (9) are fixedly opened at the top corner of the negative electrode frame (22) away from the bonding area (211). A third connecting hole (10) and a first connecting groove (11) are fixedly opened at the top corner of the positive electrode frame (21) away from the wafer island (221). A second connecting groove (12) is opened between the solder reservoir (3) and the bonding area (211), and between the solder reservoir (3) and the wafer island (221).

10. The commutation-friendly solar photovoltaic module encapsulation structure according to claim 9, characterized in that, The first connecting hole (8), the second connecting hole (9) and the third connecting hole (10) have the same diameter, and the width of the first connecting groove (11) is the same as the diameter of the third connecting hole (10).

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