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CN-224218358-U - Junction box applied to photovoltaic module and photovoltaic module

CN224218358UCN 224218358 UCN224218358 UCN 224218358UCN-224218358-U

Abstract

The utility model discloses a junction box applied to a photovoltaic module and the photovoltaic module, and relates to the technical field of manufacturing of the photovoltaic module, wherein the junction box comprises a junction box main body and a base; the junction box comprises a junction box body, a base, a frame structure, a butt joint groove, a bonding surface, a space, a bonding surface and a bonding adhesive, wherein at least one side wall of the junction box body is provided with the butt joint groove, the bonding surface is arranged at the bottom of the junction box body, the base is of a vertically-through frame structure, the frame structure is matched with the butt joint groove so as to enable the frame structure to be clamped with the butt joint groove under the action of external force, and the bonding surface of the junction box body and the part, which is not clamped with the butt joint groove, of the bottom of the base enclose a space for accommodating bonding adhesive. The structure of the junction box utilizes the cavity formed by the bonding surface of the junction box main body and the part of the middle bottom of the base, which is not clamped with the butt joint groove, to provide sufficient accommodating space for bonding glue, so that the overflow of the bonding glue to the periphery of the junction box main body is limited, the consumption of the bonding glue is reduced, and the light shielding of the bonding glue to the photovoltaic module is avoided.

Inventors

  • ZHANG CHUNYANG
  • CHEN HONGYUE
  • SHEN ZHENGHONG

Assignees

  • 晶澳(扬州)新能源有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (10)

  1. 1. A junction box for a photovoltaic module, comprising: A junction box main body (1) and a base (2); At least one side wall of the junction box main body (1) is provided with a butt joint groove (11), and the bottom is provided with an adhesive surface; The base (2) is a frame structure which is penetrated up and down, and the frame structure is matched with the butt joint groove (11) so as to enable the frame structure to be clamped with the butt joint groove (11) under the action of external force; The bonding surface of the junction box main body (1) and the part of the middle bottom of the base (2) which is not clamped with the butt joint groove (11) enclose a space for containing bonding glue.
  2. 2. The junction box according to claim 1, characterized in that, The butt joint groove (11) is arranged on the inner side of the side wall of the junction box main body (1); Or alternatively The butt joint groove (11) is arranged on the outer side of the side wall of the junction box main body (1).
  3. 3. The junction box according to claim 2, characterized in that, The docking slot (11) comprises a first locking structure (111); A second locking structure (21) is arranged on the side wall of the base (2); The first locking structure (111) is matched with the second locking structure (21) so that the base (2) is relatively fixed after being clamped with the butt joint groove (11).
  4. 4. A junction box according to claim 3, characterized in that, The first locking structure (111) is one or more first protrusions inclined upwards towards a first direction; The second locking structure (21) is one or more downwardly inclined second protrusions towards a second direction; Wherein the first direction is opposite to the second direction.
  5. 5. The junction box according to any one of claims 2 to 4, wherein, in a case where the abutting groove (11) is provided inside a side wall of the junction box main body (1), a frame height of a portion of the base (2) that engages with the abutting groove (11) is smaller than a total height of the frame in an up-down direction, and a portion of the bonding surface that does not engage with the abutting groove (11) at a bottom of the base (2) is formed as a space for accommodating bonding adhesive; In the case that the docking groove (11) is provided on the outer side of the side wall of the junction box main body (1), at least one fixing block is further provided on the bonding surface of the junction box main body (1), so that a space for accommodating bonding glue is formed by the bonding surface and a part of the middle bottom of the base (2) which is not engaged with the docking groove (11) by the fixing block.
  6. 6. The junction box according to claim 5, characterized in that, Aiming at the situation that the butt joint groove (11) is arranged on the inner side of the side wall of the junction box main body (1), the difference value between the total frame height of the base (2) and the frame height of the clamping part of the base (2) with the butt joint groove (11) is 0.5-5 mm; Aiming at the condition that the butt joint groove (11) is arranged on the outer side of the side wall of the junction box main body (1), the height of the fixing block is 0.5 mm-5 mm.
  7. 7. The junction box according to any one of claims 1 to 4, characterized in that, The butt joint groove (11) is arranged on all side walls of the junction box main body (1) in a surrounding mode.
  8. 8. The junction box according to any one of claims 1 to 4, characterized in that, The height of the frame of the clamping part of the base (2) and the butt joint groove (11) is 10 mm-30 mm.
  9. 9. The junction box according to any one of claims 1 to 4, characterized in that, The junction box main body (1) and the base (2) are of split structures.
  10. 10. A photovoltaic module comprising the junction box of any one of claims 1 to 9.

Description

Junction box applied to photovoltaic module and photovoltaic module Technical Field The utility model relates to the technical field of manufacturing of photovoltaic modules, in particular to a junction box applied to a photovoltaic module and the photovoltaic module. Background In the prior art, a junction box body in a rectangular parallelepiped shape is generally used for a junction box applied to a photovoltaic module, and the junction box is mounted by gluing at the bottom of the junction box body and pressing the junction box body on the surface of the photovoltaic module. However, whether the bonding surface at the bottom of the junction box main body is completely bonded with the photovoltaic module cannot be determined in the pressing process, so that the prior art adopts a mode of coating excessive bonding adhesive, and whether the bonding adhesive is completely filled is determined by observing whether excessive bonding adhesive overflows or not in the pressing process. The inventor finds that the structure of the junction box has the following problems in the installation process that (1) the consumption of the adhesive is large, the utilization rate is low, and the actual production cost is increased, (2) the overflowed adhesive can form shielding on battery pieces around the junction box main body to influence the power generation performance of the photovoltaic module, (3) the overflowed adhesive influences the whole appearance of the photovoltaic module, and the overflowed adhesive needs to be cleaned by subsequent additional cleaning work, (4) even if the adhesive overflows, the adhesive cannot be ensured to completely fill the space between the bonding surface of the junction box main body and the photovoltaic module, so that the stability of the junction box main body is poor. Disclosure of utility model In view of the above, the embodiment of the utility model provides a junction box applied to a photovoltaic module and the photovoltaic module, wherein the junction box body is provided with a butt joint groove on the side wall, and a base of a frame structure matched with the butt joint groove is arranged, so that the base and the butt joint groove can be clamped, and a cavity formed by the bonding surface of the junction box body and the part of the middle bottom of the base, which is not clamped with the butt joint groove, is used for providing sufficient accommodating space for bonding glue, so that the overflow of the bonding glue to the periphery of the junction box body is limited, the consumption of the bonding glue is reduced, and the light shielding of the photovoltaic module caused by the bonding glue is avoided. In order to solve the technical problems, the utility model provides the following technical scheme: the junction box comprises a junction box main body and a base, wherein at least one side wall of the junction box main body is provided with a butt joint groove, the bottom of the junction box main body is provided with an adhesive surface, the base is of a vertically-through frame structure, the frame structure is matched with the butt joint groove so as to enable the frame structure to be clamped with the butt joint groove under the action of external force, and a space for containing adhesive is formed by the adhesive surface of the junction box main body and a part, which is not clamped with the butt joint groove, of the bottom of the base. Optionally, the docking groove is arranged on the inner side of the side wall of the junction box main body, or the docking groove is arranged on the outer side of the side wall of the junction box main body. Optionally, the docking groove comprises a first locking structure, a second locking structure is arranged on the side wall of the base, and the first locking structure is matched with the second locking structure to enable the base and the docking groove to be relatively fixed after being clamped. Optionally, the first locking structure is one or more first protrusions inclined upwards towards a first direction, and the second locking structure is one or more second protrusions inclined downwards towards a second direction, wherein the first direction is opposite to the second direction. Optionally, in the case that the docking slot is disposed inside the side wall of the junction box main body, a height of a frame of the base, which is engaged with the docking slot, is smaller than an overall height of the frame, so that a space for accommodating adhesive is formed between the adhesive surface and a portion of the base, which is not engaged with the docking slot, at the bottom; And in the case that the butt joint groove is arranged on the outer side of the side wall of the junction box main body, at least one fixing block is further arranged on the bonding surface of the junction box main body, so that a space for accommodating bonding glue is formed by the bonding surface and the part, which is not clamped with the butt