CN218335948U

CN218335948U - Photovoltaic junction box

Info

Publication number: CN218335948U
Application number: CN202222966267.9U
Authority: CN
Inventors: 罗雷雷; 陈生顺; 付涛; 郭海斌; 王长山; 汪德胜
Original assignee: Huaneng Xinjiang Energy Development Co Ltd New Energy Dongjiang Branch
Current assignee: Huaneng Xinjiang Energy Development Co Ltd New Energy Dongjiang Branch
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-01-17
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a photovoltaic junction box, relating to the technical field of photovoltaic fittings, comprising a box body and a box cover, wherein a plurality of groups of threading holes are distributed on the side wall of the box body; wherein, a bearing seat is also arranged in the box body, and an arc-shaped groove for bearing the power transmission line in the threading hole is arranged on the bearing seat; the positioning screw rod is arranged on the arc-shaped groove, and a pressing plate is arranged at one end, facing the arc-shaped groove, of the positioning screw rod; still including laying the spacing subassembly in the set screw both sides, spacing subassembly is used for compressing tightly solar cell power transmission line and the wiring end of outside power transmission line in the arc wall through the clamp plate in being fixed in the arc wall with the power transmission line is spacing, realizes the series connection of both sides power transmission line, the utility model discloses need not adopt insulating tape to wind the book to connect to both sides wiring end in the terminal box through the manual work and connect, it is very convenient to operate.

Description

Photovoltaic junction box

Technical Field

The utility model relates to a photovoltaic accessory technical field, concretely relates to photovoltaic terminal box.

Background

The photovoltaic junction box is a connector between a solar cell, a solar panel and a solar charging control device which are formed by photovoltaic components, can connect electric power generated by the solar cell with an external circuit, and is simple in structure and convenient to operate.

When the photovoltaic junction box is connected with the solar cell power transmission line and the external power transmission line, the insulation adhesive tape is usually adopted to fix the line ends of the two groups of power transmission lines in the junction box, however, the junction box is small in size, so that the winding operation in the junction box is difficult, and the photovoltaic junction box is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a photovoltaic terminal box solves following technical problem:

because the terminal box is small in size, winding operation in the terminal box is difficult to perform, and the terminal box is inconvenient to use.

The purpose of the utility model can be realized by the following technical scheme:

a photovoltaic junction box comprises a box body and a box cover, wherein a plurality of groups of threading holes are oppositely distributed on the side wall of the box body;

wherein, a bearing seat is also arranged in the box body, and an arc-shaped groove for bearing the power transmission line in the threading hole is arranged on the bearing seat;

the positioning screw rod is arranged on the arc-shaped groove, and a pressing plate is arranged at one end, facing the arc-shaped groove, of the positioning screw rod;

the power transmission device is characterized by further comprising limiting assemblies arranged on two sides of the positioning screw rod, wherein the limiting assemblies are used for limiting and fixing the power transmission line in the arc-shaped groove.

Preferably, two groups of U-shaped supports are relatively and fixedly installed in the box body, the U-shaped supports on the two sides are fixedly connected with a limiting plate arranged on the bearing seat through a plurality of groups of limiting plates, and the positioning screw is spirally connected with the limiting plate.

Preferably, the limiting assembly comprises a positioning rod which is slidably arranged on the U-shaped bracket, a handle is arranged at one end of the positioning rod, which is far away from the arc-shaped groove, and one end of the positioning rod, which is far away from the handle, is fixedly connected with the arc-shaped limiting plate; wherein, a return spring is arranged on the positioning rod.

Preferably, an arc-shaped rubber pad is further arranged on the arc-shaped groove and is connected with the wall of the arc-shaped groove through adhesion.

Preferably, a fan is arranged on one side in the box body, one end of the fan is connected with an air inlet arranged on the outer side of the box body, and an air outlet facing the bearing seat is arranged on the other side of the fan; wherein, the other side of the box body is provided with a heat dissipation opening.

Preferably, a filter screen is embedded between the air inlets, and a dust adsorption screen is embedded between the heat dissipation openings.

Preferably, a plurality of threaded cylinders are oppositely arranged in the box body, a plurality of groups of positioning bolts are correspondingly arranged on the box cover, and the positioning bolts are in threaded connection with the threaded cylinders so as to realize the connection and fixation of the box body and the box cover.

The utility model has the advantages that:

(1) The solar battery power transmission line penetrates through the threading hole on one side of the box body, the external power transmission line penetrates through the threading hole on the other side of the box body, so that wiring ends of the power transmission lines on two sides are attached in the arc-shaped groove, and then the positioning screw rod is rotated to drive the pressure plate to move towards the direction of the arc-shaped groove, so that the wiring ends of the solar battery power transmission line and the external power transmission line are tightly pressed in the arc-shaped groove through the pressure plate, and the series connection of the power transmission lines on two sides is realized;

(2) When interlude the power transmission line in the through wires hole, at first, the orientation pulling handle of arc wall is kept away from to the orientation, handle drive locating lever slides towards the orientation of keeping away from U type support 3, the locating lever drives reset spring tensile production elasticity at gliding in-process, after with the power transmission line interlude on the arc wall, loosen the handle, reset spring synchronous drive locating lever removes towards the arc wall direction, to compress tightly fixedly with the power transmission line that will be located on the arc wall, and then avoid the power transmission line not hard up phenomenon to appear, positional stability is higher.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a photovoltaic junction box of the present invention;

fig. 2 is a schematic structural diagram of a photovoltaic junction box of the present invention;

fig. 3 is a schematic structural diagram three of a photovoltaic junction box of the present invention;

fig. 4 is a schematic structural view of an arc-shaped groove in the photovoltaic junction box of the present invention.

In the figure: 1. a box body; 2. a box cover; 3. a U-shaped bracket; 4. positioning a screw rod; 5. an air inlet; 101. a threaded barrel; 102. a heat dissipation port; 103. a dust adsorbing net; 104. threading holes; 105. a bearing seat; 106. an arc-shaped slot; 107. an arc-shaped rubber pad; 201. positioning the bolt; 301. positioning a rod; 302. a return spring; 303. a handle; 304. an arc limiting plate; 401. pressing a plate; 402. a limiting frame; 501. a fan.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention relates to a photovoltaic junction box, which includes a box body 1 and a box cover 2, wherein a plurality of groups of wire holes 104 are disposed on the sidewall of the box body 1; wherein, a bearing seat 105 is also arranged in the box body 1, and an arc-shaped groove 106 for bearing the power transmission line in the threading hole 104 is arranged on the bearing seat 105;

the device also comprises a positioning screw rod 4 arranged on the arc-shaped groove 106, and a pressing plate 401 is arranged at one end, facing the arc-shaped groove 106, of the positioning screw rod 4;

the limiting device further comprises limiting components arranged on two sides of the positioning screw rod 4, and the limiting components are used for limiting and fixing the power transmission line in the arc-shaped groove 106; it can be said that, when connecting solar cell power transmission line and external power transmission line, at first open lid 2 and make it separate with box body 1, pass the solar cell power transmission line through the through wires hole 104 of box body 1 one side, pass the external power transmission line through the opposite side through wires hole 104 of box body 1, make the wiring end of both sides power transmission line laminate in arc wall 106, secondly, through rotating positioning screw 4, positioning screw 4 drives clamp plate 401 and moves towards the direction of arc wall 106, and then compresses tightly the wiring end of solar cell power transmission line and external power transmission line in arc wall 106 through clamp plate 401, realize the series connection of both sides power transmission line, in an embodiment of the utility model, clamp plate 401 adopts insulating material to make, the utility model discloses need not adopt insulating sticky tape to wind the connection to both sides wiring end in the terminal box through the manual work, it is very convenient to operate;

referring to fig. 3, as a further solution of the embodiment of the present invention, two sets of U-shaped brackets 3 are relatively and fixedly installed in the box body 1, the U-shaped brackets 3 on both sides are fixedly connected by a plurality of sets of limiting frames 402 arranged on the bearing seat 105, wherein the positioning screw 4 is spirally connected with the limiting frames 402; when the driving platen 401 is moved toward the arc-shaped groove 106, the positioning screw 4 is rotated.

Furthermore, the limiting assembly comprises a positioning rod 301 which is slidably arranged on the U-shaped bracket 3, a handle 303 is installed at one end of the positioning rod 301 far away from the arc-shaped groove 106, and one end of the positioning rod 301 far away from the handle 303 is fixedly connected with the arc-shaped limiting plate 304; wherein, a return spring 302 is arranged on the positioning rod 301; it can be stated that, when inserting the power transmission line in the threading hole 104, first, the handle 303 is pulled towards the direction away from the arc-shaped groove 106, the handle 303 drives the positioning rod 301 to slide towards the direction away from the U-shaped bracket 3, the positioning rod 301 drives the reset spring 302 to stretch to generate elastic force in the sliding process, after inserting the power transmission line on the arc-shaped groove 106, the handle 303 is released, the reset spring 302 synchronously drives the positioning rod 301 to move towards the arc-shaped groove 106, so as to compress and fix the power transmission line on the arc-shaped groove 106, thereby avoiding the power transmission line from loosening, and the positioning stability is higher;

in addition, an arc-shaped rubber pad 107 is also arranged on the arc-shaped groove 106, and the arc-shaped rubber pad 107 is arranged in the arc-shaped groove 106 in an adhesion mode, so that when the power transmission line is arranged in the arc-shaped groove 106, the effects of insulating and protecting the power transmission line are achieved;

referring to fig. 4, a fan 501 is disposed on one side inside the box body 1, one end of the fan 501 is connected to the air inlet 5 disposed on the outer side of the box body 1, and an air outlet facing the bearing seat 105 is disposed on the other side; wherein, the other side of the box body 1 is provided with a heat radiation port 102; specifically, in the embodiment, in the practical application process, because the temperature inside the junction box gradually rises along with the current transmission of the power transmission line in the long-time use process, the fan 501 is started, and the fan 501 supplies air towards the inside of the junction box through the air inlet 5 and the air outlet to accelerate the air flow rate inside the junction box, so that the high-temperature gas is discharged from the heat-dissipating port 102;

furthermore, a filter screen is embedded between the air inlets 5, and a dust adsorption screen 103 is embedded between the heat dissipation openings 102, so that dust in the outside air is prevented from entering the junction box from the air inlets 5 or the heat dissipation openings 102, and the dustproof effect is better.

As another embodiment, a plurality of threaded cylinders 101 are relatively arranged in the box body 1, a plurality of sets of positioning bolts 201 are correspondingly arranged on the box cover 2, and the positioning bolts 201 are spirally connected with the threaded cylinders 101 to realize the connection and fixation of the box body 1 and the box cover 2.

The utility model discloses a theory of operation: the box cover 2 is opened to be separated from the box body 1, the solar battery power transmission line penetrates through the threading hole 104 on one side of the box body 1, the external power transmission line penetrates through the threading hole 104 on the other side of the box body 1, when the power transmission line is inserted into the threading hole 104, firstly, the handle 303 is pulled towards the direction away from the arc-shaped groove 106, the handle 303 drives the positioning rod 301 to slide towards the direction away from the U-shaped support 3, the positioning rod 301 drives the reset spring 302 to stretch to generate elastic force in the sliding process, after the power transmission line is inserted into the arc-shaped groove 106, the handle 303 is loosened, the reset spring 302 synchronously drives the positioning rod 301 to move towards the direction of the arc-shaped groove 106, so that the power transmission line positioned on the arc-shaped groove 106 is pressed and fixed, the wiring terminals of the power transmission lines on the two sides are attached in the arc-shaped groove 106, secondly, the positioning screw 4 drives the pressing plate 401 to move towards the direction of the arc-shaped groove 106 by rotating the positioning screw 4, and further the pressing plate 401 tightly presses the wiring terminals of the solar battery power transmission line and the external power transmission line in the arc-shaped groove 106, and the series connection of the power transmission lines on the two sides is realized.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims

1. A photovoltaic junction box comprises a box body (1) and a box cover (2), and is characterized in that a plurality of groups of threading holes (104) are distributed on the side wall of the box body (1) relatively;

wherein, a bearing seat (105) is also arranged in the box body (1), and an arc-shaped groove (106) for bearing the power transmission line in the threading hole (104) is arranged on the bearing seat (105);

the device is characterized by also comprising a positioning screw rod (4) arranged on the arc-shaped groove (106), wherein a pressing plate (401) is arranged at one end, facing the arc-shaped groove (106), of the positioning screw rod (4);

the transmission line limiting device is characterized by further comprising limiting assemblies arranged on two sides of the positioning screw rod (4), wherein the limiting assemblies are used for limiting and fixing the transmission line in the arc-shaped groove (106).

2. The photovoltaic junction box according to claim 1, wherein two sets of U-shaped brackets (3) are relatively and fixedly installed in the box body (1), the U-shaped brackets (3) on two sides are fixedly connected through a plurality of sets of limiting frames (402) arranged on the bearing seat (105), and the positioning screw (4) is spirally connected with the limiting frames (402).

3. The photovoltaic junction box according to claim 2, wherein the limiting assembly comprises a positioning rod (301) slidably arranged on the U-shaped bracket (3), a handle (303) is mounted at one end of the positioning rod (301) far away from the arc-shaped groove (106), and one end of the positioning rod (301) far away from the handle (303) is fixedly connected with the arc-shaped limiting plate (304); wherein, a return spring (302) is arranged on the positioning rod (301).

4. The photovoltaic junction box of claim 1, wherein the arc-shaped groove (106) is further provided with an arc-shaped rubber gasket (107), and the arc-shaped rubber gasket (107) is connected with the groove wall of the arc-shaped groove (106) through adhesion.

5. The photovoltaic junction box according to claim 1, wherein a fan (501) is arranged on one side in the box body (1), one end of the fan (501) is connected with an air inlet (5) arranged on the outer side of the box body (1), and an air outlet facing the bearing seat (105) is arranged on the other side; wherein, the other side of the box body (1) is provided with a heat dissipation port (102).

6. The photovoltaic junction box according to claim 5, wherein a filter screen is embedded between the air inlets (5), and a dust adsorption screen (103) is embedded between the heat dissipation openings (102).

7. The photovoltaic junction box according to any one of claims 1 to 6, wherein a plurality of threaded cylinders (101) are relatively arranged in the box body (1), a plurality of groups of positioning bolts (201) are correspondingly arranged on the box cover (2), and the positioning bolts (201) are spirally connected with the threaded cylinders (101) to realize the connection and fixation of the box body (1) and the box cover (2).