Pen-type photovoltaic junction box

Abstract

The utility model relates to photovoltaic junction box technical field discloses a pen type photovoltaic junction box, including box body and top cover, the inside installation of box body has wiring terminal and multiple conducting sheet, is connected with outgoing line on wiring terminal, is connected with diode between every two adjacent conducting sheet, the both ends of box body all are provided with wire hole, and are fixedly connected with the connecting pipe outside wire hole, the front end surface of connecting pipe is provided with multiple notches, the outside is connected with the cap of thread, the inner bottom of cap is equipped with the chamfer, the inside fixedly connected with multiple fixed base of box body, the top surface of fixed base is provided with the fixed groove of adapting with conducting sheet, the bottom of conducting sheet movably is equipped with the bus bar connecting piece, the middle part of fixed groove is provided with the limiting slot of adapting with bus bar connecting piece, is equipped with the support seat for supporting diode between every two fixed base, the inner bottom surface of box body is provided with the through groove on the both sides of fixed base. The utility model improves the use stability of junction box, and improves the assembly efficiency, and the practicality is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic junction box technical field, specifically is a pen type photovoltaic junction box. BACKGROUND

[0002] The pen type photovoltaic junction box is a specially designed photovoltaic module junction box, which is similar to the shape of a pen, small in size, easy to install and maintain, and can reduce the occupied space while maintaining good heat dissipation performance.

[0003] Through the retrieval, the utility model discloses a high heat dissipation pencil formula junction box, including box body and base, box body and base are connected, and multiple groups of junction terminals are arranged between box body and base, and one or more diodes are connected between every two junction terminals, and every two or more diodes correspond and adhere to one heat dissipation device, and every junction terminal corresponds and connects with the busbar on photovoltaic module, and the junction terminal and diode are packaged with heat dissipation silica gel, and the utility model has the characteristics of small product structure, low cost and good heat dissipation effect.

[0004] But in actual application, although the cable of the junction box is connected to the junction terminal through welding, when the external cable is twisted or stretched, the welding point will shake frequently, and when the external cable is stretched or twisted for a long time, the external cable and the terminal connecting seat will be disconnected, and the stability of the junction box is poor, and the diode installation and the connection with the busbar are connected through welding, and the assembly efficiency is low. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the existing pen type photovoltaic junction box will appear the phenomenon that the external cable and the terminal connecting seat are disconnected, the stability of the junction box is poor, and the diode installation and the connection with the busbar are connected through welding, and the assembly efficiency is low.

[0006] In order to solve the above problems, the technical scheme of the utility model is: a pen type photovoltaic junction box, including box body and top cover, the both ends inside of box body are installed with wiring terminal, the wiring terminal is connected with the outgoing line extending to the outside of box body, the inside of box body is installed with a plurality of conductive sheet between two wiring terminals, the diode is connected between every two adjacent conductive sheet, the both ends of box body are all set up with the wire hole being adapted to outgoing line, the both ends of box body are fixedly connected with the connecting pipe outside wire hole, and the front end of connecting pipe is set up with a plurality of notches, and the outside is screw threadedly connected with the cap, the inner bottom of cap is equipped with the chamfer, the inside of box body is fixedly connected with a plurality of fixing seat for placing conductive sheet, the top of fixing seat is set up with the fixed groove being adapted to conductive sheet, the bottom of conductive sheet is movably equipped with the bus bar connecting piece, the middle of fixed groove is set up with the limiting slot being adapted to bus bar connecting piece, the inside of box body is installed with the support seat for supporting diode between every two fixing seat, the inner bottom of box body is symmetrically set up with the through groove on the both sides of fixing seat.

[0007] Further, the box body and the top cover are connected and fixed by a plurality of buckles, and a sealing ring is arranged between the top cover and the box body.

[0008] Further, the both ends of the box body are fixedly connected with mounting seats for mounting the wiring terminals, one side of the wiring terminal is fixedly connected with a conductive plate, and the other end of the conductive plate is detachably connected with the conductive sheet adjacent to the wiring terminal.

[0009] Further, a sealing ring is arranged between the cap and the outgoing line.

[0010] Further, screw holes are symmetrically arranged at the top of the both ends of the fixing seat, screws are arranged in the screw holes, and through holes corresponding to the positions of the screw holes are arranged on the conductive sheet and the conductive plate.

[0011] Further, a wiring groove is arranged on the bus bar connecting piece, and the depth of the limiting slot is less than the thickness of the bus bar connecting piece; positioning grooves adapted to diode pins are arranged at the both ends of the fixed groove, and the depth of the positioning grooves is less than the diameter of the pins.

[0012] Further, the support seat comprises an arc-shaped groove body, and a support column is fixedly connected to the bottom of the arc-shaped groove body.

[0013] Compared with the prior art, the utility model has the advantages that: the utility model promotes the front end of the connecting pipe to bend inward along the chamfer by tightening the cap to fix the outgoing line, effectively prevents the outgoing line from being in poor contact with the wiring terminal or falling off due to the pulling force received by the external outgoing line, and improves the use stability of the junction box; the installation of the diode and the connection with the bus bar do not need welding, which is convenient and efficient, and improves the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the utility model.

[0015] Figure 2 is a structure view of the utility model box body.

[0016] Figure 3 is a partial structure enlarged view of the utility model Figure 2 .

[0017] Figure 4 is a connecting structure sectional view of the utility model connecting pipe and cap.

[0018] Figure 5 is a structure view of the utility model fixed seat and support seat.

[0019] As shown in the figure: 1, box body; 2, top cover; 3, terminal; 4, lead-out wire; 5, conducting sheet; 6, diode; 7, connecting pipe; 8, cap; 9, fixed seat; 10, busbar connecting piece; 11, support seat; 12, mounting seat; 13, conducting plate. Specific embodiments

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] As Figures 1 to 4 shown, a pen type photovoltaic junction box, comprising a box body 1 and a top cover 2, the box body 1 is connected and fixed with the top cover 2 through a plurality of buckles, and a sealing ring is arranged between the top cover 2 and the box body 1, the terminal 3 is mounted in the both ends of the box body 1, the lead-out wire 4 extending to the outside of the box body 1 is connected on the terminal 3, the wire hole compatible with the lead-out wire 4 is arranged on both ends of the box body 1, the connecting pipe 7 is fixedly connected on the outside of the wire hole of both ends of the box body 1, a plurality of notches are arranged on the front end face of the connecting pipe 7, the cap 8 is screw-connected on the outside, the inner bottom of the cap 8 is provided with a chamfer, a sealing ring is arranged between the cap 8 and the lead-out wire 4, the mounting seat 12 for mounting the terminal is fixedly connected in the both ends of the box body 1, and the conducting plate 13 is fixedly connected on one side of the terminal 3.

[0022] When the cap 8 is tightened, the front end of the connecting pipe 7 is bent inward along the chamfer due to the arrangement of the chamfer, so that the front end of the connecting pipe 7 presses the lead-out wire 4, thereby realizing the fixation of the lead-out wire 4 and effectively preventing the poor contact or falling off of the lead-out wire 4 caused by the tension of the external lead-out wire 4.

[0023] As Figure 2 shown,Figure 5 As shown, the box body 1 is internally mounted with a plurality of conductive sheets 5 between two terminal 3, the other end of the conductive plate 13 is detachably connected with the adjacent conductive sheet 5 of the terminal 3, a diode 6 is connected between every two adjacent conductive sheets 5, a plurality of fixing seats 9 for placing the conductive sheet 5 are fixed in the box body 1, the top surface of the fixing seat 9 is provided with a fixing groove matched with the conductive sheet 5, a supporting seat 11 for supporting the diode 6 is mounted between every two fixing seats 9 in the box body 1, a through groove is symmetrically provided on both sides of the fixing seat 9 in the bottom surface of the box body 1, a threaded hole is symmetrically provided on both ends of the top of the fixing seat 9, and a screw is mounted in the threaded hole, a through hole matched with the position of the threaded hole is provided on the conductive sheet 5 and the conductive plate 13, and a positioning groove matched with the pin of the diode 6 is provided at both ends of the fixing groove, and the depth of the positioning groove is less than the diameter of the pin, the supporting seat 11 comprises an arc-shaped groove body, and a supporting column is fixedly connected to the bottom of the arc-shaped groove body.

[0024] The diode 6 is placed on the supporting seat 11, and the pins at both ends thereof are respectively placed in the positioning grooves on the adjacent two fixing seats 9, and the conductive sheet 5 is placed in the fixing groove and fixed by the screw. Since the depth of the positioning groove is less than the diameter of the pin, the stability of the connection between the diode 6 and the conductive sheet 5 can be ensured, and welding is not required, thereby improving the assembly efficiency.

[0025] As shown in the figure, Figure 3 The bottom of the conductive sheet 5 movably has a busbar connecting piece 10, a limiting groove matched with the busbar connecting piece 10 is provided in the middle of the fixing groove, a wiring groove is provided on the busbar connecting piece 10, and the depth of the limiting groove is less than the thickness of the busbar connecting piece 10.

[0026] The busbar connecting piece 10 is installed in the limiting groove before the conductive sheet 5 is installed, so that the busbar connecting piece 10 can be tightly fixed when the conductive sheet 5 is fixed. The wiring groove provided on the busbar connecting piece 10 facilitates the connection with the busbar of the photovoltaic module, and welding is not required, which is convenient and fast.

[0027] In specific use, the cap 8 is separated from the connecting pipe 7, one end of the lead-out wire 4 is inserted into the box body 1 after penetrating through the cap 8 and the connecting pipe 7, and is connected to the terminal 3, the busbar connecting piece 10 is installed in the limiting groove, the diode 6 is placed on the supporting seat 11, and the pins at both ends thereof are placed in the positioning grooves, the conductive sheet 5 is placed in the fixing groove and tightly fixed by the screw, and the cap 8 is tightened to fix the lead-out wire 4, thereby effectively improving the stability of the installation of the lead-out wire 4 and improving the use stability and safety of the junction box. The installation of the diode 6 and the connection of the busbar connecting piece 10 with the busbar of the photovoltaic module do not require welding, which is convenient and fast and improves the assembly efficiency. When the conductive sheets 5 at both ends are installed, the end of the conductive plate 13 can be lifted first, and then the end of the conductive plate 13 is pressed against the top of the conductive sheet 5 after the conductive sheet 5 is placed.

[0028] The non-disclosed parts in the utility model are all prior arts, and the specific structure and working principle are not described again.

[0029] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily implying any actual relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the utility model have been shown and described, it should be understood by those of ordinary skill in the art that various changes, modifications, replacements, and variations of the embodiments can be made without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0031] The utility model and its implementation mode have been described above, and this description is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person of ordinary skill in the art is inspired, without departing from the creative purpose of the utility model, without creative design, similar structure modes and embodiments of the technical scheme should belong to the protection scope of the utility model.

Claims

1. A pen-shaped photovoltaic junction box, comprising a box body (1) and a top cover (2), wire terminals (3) are internally mounted at both ends of the box body (1), lead-out wires (4) extending to the outside of the box body (1) are connected to the wire terminals (3), a plurality of conductive sheets (5) are internally mounted between the two wire terminals (3) of the box body (1), and diodes (6) are connected between every two adjacent conductive sheets (5), characterized in that: Both ends of the box body (1) are provided with wire holes matched with the lead-out wires (4), the connecting pipes (7) are fixedly connected to the outside of the wire holes at both ends of the box body (1), a plurality of notches are formed in the front end face of the connecting pipe (7), the cap (8) is threadedly connected to the outside of the connecting pipe (7), the inner bottom of the cap (8) is provided with a chamfer, a plurality of fixing seats (9) for placing the conductive sheets (5) are fixedly connected to the inside of the box body (1), the top surface of the fixing seat (9) is provided with a fixing groove matched with the conductive sheet (5), the bottom of the conductive sheet (5) is movably provided with the bus bar connecting piece (10), the middle of the fixing groove is provided with a limiting groove matched with the bus bar connecting piece (10), the supporting seat (11) for supporting the diode (6) is mounted between every two fixing seats (9) in the box body (1), and the through grooves are symmetrically formed in the inner bottom surface of the box body (1) on both sides of the fixing seat (9).

2. A pen-type photovoltaic junction box according to claim 1, characterized by: The box body (1) and the top cover (2) are connected and fixed through a plurality of buckles, and a sealing ring is arranged between the top cover (2) and the box body (1).

3. A pen-shaped photovoltaic junction box according to claim 1, characterized in that: The mounting seat (12) for mounting the terminal is fixedly connected to the inside of both ends of the box body (1), one side of the terminal (3) is fixedly connected with the conductive plate (13), and the other end of the conductive plate (13) is detachably connected with the conductive sheet (5) adjacent to the terminal (3).

4. A pen-shaped photovoltaic junction box according to claim 1, characterized in that: A sealing ring is arranged between the cap (8) and the lead-out wire (4).

5. A pen-shaped photovoltaic junction box according to claim 3, characterized in that: Threaded holes are symmetrically formed in the top of both ends of the fixing seat (9), and screws are mounted in the threaded holes, and through holes corresponding to the positions of the threaded holes are formed in the conductive sheet (5) and the conductive plate (13).

6. A pen-shaped photovoltaic junction box according to claim 1, characterized in that: A wiring groove is formed in the bus bar connecting piece (10), and the depth of the limiting groove is smaller than the thickness of the bus bar connecting piece (10); the ends of the fixing groove are provided with the positioning grooves matched with the pins of the diode (6), and the depth of the positioning groove is smaller than the diameter of the pin.

7. A pen-shaped photovoltaic junction box according to claim 1, characterized in that: The supporting seat (11) comprises an arc-shaped groove body, and a supporting column is fixedly connected to the bottom of the arc-shaped groove body.

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