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CN-224233639-U - Photovoltaic junction box

CN224233639UCN 224233639 UCN224233639 UCN 224233639UCN-224233639-U

Abstract

The utility model belongs to the technical field of junction boxes, and particularly relates to a photovoltaic junction box, which comprises a box body, a cover plate, two connecting sleeves, two sealing rings, a first connecting piece and a second connecting piece, wherein the cover plate is arranged on the box body; one end of the box body is provided with an accommodating groove, and the surface of the box body provided with the accommodating groove is provided with a sealing ring groove; the surface of one side of the cover plate, which is close to the box body, is provided with a sealing snap ring which can be snapped into the sealing ring groove to form sealing, the cover plate is provided with two mounting through holes, and a first round table top is arranged in each of the two mounting through holes; compared with the prior art, the photovoltaic junction box has good sealing performance, and can prevent dust, liquid and the like from entering the box body to influence the operation of electronic elements.

Inventors

  • LI YIBIN

Assignees

  • 浙江鑫安能源建设有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (6)

  1. 1. A photovoltaic junction box, comprising: The box body (1), one end of the box body (1) is provided with a containing groove (101), the surface of the box body (1) provided with the containing groove (101) is provided with a sealing ring groove (102), and the sealing ring groove (102) is positioned at the periphery of an opening of the containing groove (101); The sealing clamping ring (3) is arranged on the surface, close to one side of the box body (1), of the cover plate (2), the sealing clamping ring (3) can be clamped into the sealing ring groove (102) to form sealing, two mounting through holes (4) are formed in the cover plate (2), and first round table boards (401) are arranged in the two mounting through holes (4); The two connecting sleeves (5), the inner diameters of the connecting sleeves (5) are matched with the diameters of the cables, the two connecting sleeves (5) are respectively arranged in the two mounting through holes (4), and a second circular table surface (501) is arranged at one end, close to the first circular table surface (401), of the connecting sleeve (5); The two sealing rings (6), the two sealing rings (6) are respectively arranged between the two first round table tops (401) and the two second round table tops (501); The first connecting piece (7) can connect and fix the cover plate (2) and the box body (1); The second connecting piece (8), second connecting piece (8) can with adapter sleeve (5) with install through-hole (4) are connected fixedly, at this moment sealing washer (6) by first round mesa (401) and second round mesa (501) extrusion, the inner wall and the cable contact of sealing washer (6).
  2. 2. The photovoltaic junction box according to claim 1, characterized in that one end of the mounting through hole (4) far away from the first round table surface (401) is provided with a first reaming (402).
  3. 3. The photovoltaic junction box according to claim 1, characterized in that a second reaming (502) is arranged on the inner wall of the connecting sleeve (5) at the end far away from the cover plate (2).
  4. 4. The photovoltaic junction box according to claim 1, wherein first mounting plates (701) are arranged on two opposite side walls of the box body (1), first threaded holes (702) are formed in the two first mounting plates (701), second mounting plates (703) are arranged on two opposite side walls of the cover plate (2), first connecting holes (704) are formed in the two second mounting plates (703), the first connecting pieces (7) are threaded fasteners, and the cover plate (2) and the box body (1) are fixedly connected by matching the first connecting pieces (7), the first connecting holes (704) and the first threaded holes (702).
  5. 5. The photovoltaic junction box according to claim 1, wherein a plurality of second threaded holes (801) are distributed on the surface, close to one side of the connecting sleeve (5), of the cover plate (2) in a circumferential array with the axis of the mounting through hole (4) as a center, a fixing ring (802) is arranged on the connecting sleeve (5), a second connecting through hole (803) opposite to the second threaded hole (801) is arranged on the fixing ring (802), a second connecting piece (8) is screwed with a fastening piece, and the connecting sleeve (5) is fixedly connected with the mounting through hole (4) in a matched mode through the second connecting piece (8), the second connecting through hole (803) and the second threaded hole (801).
  6. 6. The photovoltaic junction box according to claim 5, wherein a gap is formed between the fixing ring (802) and the surface of the cover plate (2) after the connecting sleeve (5) is fixedly connected with the mounting through hole (4).

Description

Photovoltaic junction box Technical Field The utility model belongs to the technical field of junction boxes, and particularly relates to a photovoltaic junction box. Background The solar photovoltaic cell is a device for directly converting solar radiation energy into electric energy, the photovoltaic module is a product formed by connecting a plurality of photovoltaic cells in series-parallel connection and then packaging, the photovoltaic module is a basic unit in a photovoltaic power generation system, and the photovoltaic junction box is a key device for introducing electric energy generated by the solar photovoltaic cell into a power supply system. Because the photovoltaic terminal box is usually installed outdoors, directly expose under various environmental conditions, such as sunshine, rainwater, moisture, dust etc., therefore good sealing performance is crucial to guaranteeing its inside electronic component's normal work and increase of service life, current photovoltaic terminal box includes box body and apron, the box body is connected with the apron can be dismantled, the holding tank is arranged in installing electronic component in the box body, the hole is offered on the apron and is used for supplying the cable to pass, however there is the clearance in the junction of box body and apron, dust, liquid get into in the box body from the clearance easily, and in order to be convenient for the cable to penetrate, the hole on the apron can be designed more greatly, also incur dust, liquid entering easily, influence the life of electronic component in the box body, consequently still need improve current photovoltaic terminal box structure. Disclosure of utility model The utility model aims at solving the technical problems, and provides a photovoltaic junction box which has good sealing performance and can prevent dust, liquid and the like from entering a box body to influence the operation of electronic elements. In view of this, the present utility model provides a photovoltaic junction box comprising: The box body is provided with an accommodating groove at one end, a sealing ring groove is arranged on the surface of the accommodating groove of the box body, and the sealing ring groove is positioned at the periphery of the opening of the accommodating groove; The surface of one side of the cover plate, which is close to the box body, is provided with a sealing snap ring which can be clamped into the sealing ring groove to form sealing, the cover plate is provided with two mounting through holes, and a first round table top is arranged in each of the two mounting through holes; The inner diameter of the connecting sleeve is matched with the diameter of the cable, the two connecting sleeves are respectively arranged in the two mounting through holes, and one end of the connecting sleeve, which is close to the first circular table surface, is provided with a second circular table surface; The two sealing rings are respectively arranged between the two first round table surfaces and the two second round table surfaces; the first connecting piece can connect and fix the cover plate and the box body; The second connecting piece can be used for connecting and fixing the connecting sleeve with the installation through hole, at the moment, the sealing ring is extruded by the first round table surface and the second round table surface, and the inner wall of the sealing ring is in contact with the cable. According to the technical scheme, the cover plate is separated from the box body, the electronic element in the accommodating groove can be operated, when the electronic element in the accommodating groove is not required to be operated, the sealing clamping ring on the cover plate is clamped into the sealing ring groove on the box body, so that a joint between the cover plate and the box body is free of gaps, the cover plate is fixedly connected with the box body through the first connecting piece, cables penetrate through the two connecting sleeves, when the connecting sleeve is fixedly connected with the mounting through hole through the second connecting piece, the sealing ring is extruded between the first circular table surface and the second circular table surface, the inner wall of the sealing ring is in contact with the cables, and therefore sealing is formed at the mounting through hole, and the tightness of the accommodating groove is ensured. In the above technical scheme, further, one end of the installation through hole far away from the first round table top is provided with a first reaming. In the above technical scheme, further, a second reaming is arranged on the inner wall of one end of the connecting sleeve, which is far away from the cover plate. In the above technical scheme, further, all be provided with first mounting panel on two opposite lateral walls of box body, all be provided with first screw hole on two first mounting panels, all be provided with the second mounting pan