Photovoltaic equipment connection junction box

Abstract

The invention provides a photovoltaic equipment connection junction box, which relates to the field of solar power generation and comprises a box body and a box cover arranged on the outer side of the top end face of the box body. The positioning auxiliary structure is arranged on the inner side of the joint of the box body and the box cover; the plurality of lug plates are uniformly arranged at the rear end of the inner side of the box body; the angle control mechanism is arranged at the front end of the inner side of the box body; the line arrangement auxiliary mechanism is arranged on the outer side of the limiting auxiliary frame; and the plurality of wire through grooves are uniformly arranged at the front and rear ends of the box body. According to the junction box, independent winding and arrangement limiting procedures of a plurality of transmission lines are realized, so that a corresponding line can be quickly found in the process of overhauling photovoltaic equipment, the operation smoothness in the process of overhauling the equipment is improved, the use effect of the junction box in the practical application process is improved, and the practicability of the junction box is improved. The problem that in the process of overhauling photovoltaic equipment, a corresponding line is difficult to find quickly, and the operation smoothness is affected when the equipment is overhauled is solved.

Description

Technical Field

[0001] The invention relates to the technical field of solar power generation, and in particular to a photovoltaic device connection junction box. Background Art

[0002] In the process of connecting the power generated by solar cells to external lines, a junction box is usually used to transmit the power generated by solar cells to the external circuit, while also effectively protecting the solar cell components.

[0003] For example, the existing application number CN201610740315.9 proposes a photovoltaic module junction box, including a frame, a base plate detachably connected to the frame, a wiring lug, a bypass diode and a cable connector; the wiring lug is arranged on the base plate and is located in the accommodating space formed by the base plate and the frame, the wiring lug includes a plurality of wiring parts with unequal areas, each wiring part has a bus bar connection area and a bypass diode connection area, and two of the plurality of wiring parts are also respectively provided with cable connection parts; the bypass diode is arranged in the accommodating space and bridged between the plurality of wiring parts; one end of the cable connector is connected to the cable connection part, and the other end is provided with a first output connector; the invention can make the photovoltaic module junction box have good heat dissipation performance, and make the installation of the junction box and the photovoltaic module more convenient and efficient.

[0004] However, after the transmission lines in the photovoltaic equipment are limitedly connected to the wiring pieces in the junction box, the multiple transmission lines in the junction box are relatively messy, and it is difficult to quickly find the corresponding lines during the maintenance of the photovoltaic equipment, which affects the smoothness of the operation when maintaining the equipment and the use effect of the junction box in actual application. Summary of the invention

[0005] In view of this, the present invention provides a photovoltaic equipment connection junction box, which realizes the separate winding and arranging and limiting processes of multiple transmission lines, so that the corresponding lines can be quickly found during the maintenance of the photovoltaic equipment, thereby improving the smoothness of operation when repairing the equipment, as well as the use effect of the junction box in actual application.

[0006] The present invention provides a purpose and effect of connecting a junction box for a photovoltaic device, which specifically includes: a box body, a box cover, a positioning auxiliary structure, a wiring piece, an angle control mechanism, a line-straightening auxiliary mechanism, and a wire-through groove; the box cover is arranged on the outer side of the top end surface of the box body; the positioning auxiliary structure is arranged on the inner side of the connection between the box body and the box cover; there are multiple wiring pieces, and the multiple wiring pieces are evenly arranged and arranged at the rear end of the inner side of the box body; the angle control mechanism is arranged at the front end of the inner side of the box body, and the angle control mechanism includes: a limiting auxiliary frame, and the limiting auxiliary frame is hingedly arranged at the inner end of the box body; the line-straightening auxiliary mechanism is arranged on the outer side of the limiting auxiliary frame, and the line-straightening auxiliary mechanism includes: a driving auxiliary shaft and a wire-taking shaft, and the driving auxiliary shaft is laterally rotatably connected to the inner end of the limiting auxiliary frame; there are multiple wire-taking shafts, and the multiple wire-taking shafts are evenly arranged and vertically rotatably arranged on the outer side of the driving auxiliary shaft; there are multiple wire-through grooves, and the multiple wire-through grooves are evenly arranged and opened at the front and rear ends of the box body.

[0007] Furthermore, a plurality of mounting brackets are evenly arranged and fixedly connected to the outer side of the box body, and mounting through holes are provided on the inner sides of the plurality of mounting brackets;

[0008] The outer end of the inner end surface of the box cover is fixedly connected with a sealing auxiliary frame, and the inner side of the sealing auxiliary frame is fixedly connected with a sealing auxiliary strip. The position and size of the sealing auxiliary frame are relatively positive to the position and size of the box body.

[0009] Furthermore, the positioning auxiliary structure includes: a limit block, a positioning column, an elastic reset member, and a docking auxiliary groove; there are four limit blocks, which are evenly arranged and fixedly connected to the outsides of the four angles in the box cover; there are four positioning columns, which are elastically connected to the outsides of the four limit blocks respectively; there are four elastic reset members, which are fixedly connected to the inner sides of the connections between the four limit blocks and the four positioning columns respectively; there are four docking auxiliary grooves, which are evenly arranged and opened on the outsides of the top end surface of the box body, and the inner sides of the four docking auxiliary grooves are all provided with positioning grooves, and the positions of the docking auxiliary grooves are relatively positive to the positions of the positioning columns.

[0010] Furthermore, the angle control mechanism also includes: a support auxiliary frame and a limit operating frame, there are two support auxiliary frames, the two support auxiliary frames are symmetrically arranged on the outside of the limit auxiliary frame, the outside of the support auxiliary frame is fixedly connected to the box body, and the support auxiliary frame is hingedly connected to the limit auxiliary frame; the limit operating frame is fixedly connected to the outer end of the limit auxiliary frame by an elastic member, the limit operating frame is a polygonal structure, and a limit operating groove is provided in the support auxiliary frame at a position aligned with the limit operating frame.

[0011] Furthermore, a plurality of positioning auxiliary grooves are evenly arranged on the outer end of the position limiting auxiliary frame, and the positions of the plurality of positioning auxiliary grooves are aligned with the positions of the wiring pieces.

[0012] Furthermore, the line-straightening auxiliary mechanism also includes: a driving bevel gear and a driven bevel gear. There are multiple driving bevel gears, and the multiple driving bevel gears are evenly arranged and coaxially fixedly connected to the outside of the driving auxiliary shaft; there are multiple driven bevel gears, and the multiple driven bevel gears are coaxially fixedly connected to the outside of the bottom end faces of multiple take-up shafts. After the limiting auxiliary frame is flipped upward, the driving bevel gear and the driven bevel gear are meshed with each other, and the driving bevel gear and the driven bevel gear together constitute a bevel gear transmission mechanism.

[0013] Furthermore, the line-straightening auxiliary mechanism also includes: a limiting auxiliary ring and an elastic traction member, there are multiple limiting auxiliary rings, and the multiple limiting auxiliary rings are respectively and concentrically rotatably arranged on the outsides of the multiple take-up shafts, and the transverse cross-sections of the multiple limiting auxiliary rings are L-shaped structures; there are multiple elastic traction members, and the multiple elastic traction members are respectively fixedly connected to the inner sides of the connection points between the multiple limiting auxiliary rings and the take-up shafts.

[0014] Furthermore, the line-straightening auxiliary mechanism also includes: a transmission cam, a warning auxiliary frame, and a guide column; there are multiple transmission cams, and the multiple transmission cams are coaxially fixedly connected to the outer sides of the top end surfaces of multiple take-up shafts; the warning auxiliary frame is slidably connected to the inner side of the box body; there are two guide columns, and the two guide columns are symmetrically fixedly connected to the inner end of the box body, and the connection between the two guide columns and the warning auxiliary frame is fixedly connected by a limiting elasticity; after the limiting auxiliary frame is flipped forward, the transmission cam and the warning auxiliary frame are pressed against each other, and the warning auxiliary frame and the transmission cam together constitute a cam transmission mechanism.

[0015] Furthermore, a plurality of the wire-through grooves are concentrically fixedly connected to the outer sides with protective auxiliary parts, the outer ends of the protective auxiliary parts are conical tube structures with an outer diameter smaller than an inner diameter; and the outer ends of the protective auxiliary parts are concentrically fixedly connected to a flexible protective tube.

[0016] Beneficial Effects

[0017] When the present invention is in use, the automatic positioning and locking process of the box body and the box cover during docking is realized, and the rapid installation and disassembly process between the box cover and the box body is realized, which improves the smoothness of the operation when inspecting the inside of the junction box and limiting the connection between the transmission line and the junction box, and further improves the work efficiency when connecting the transmission line of the photovoltaic equipment;

[0018] In addition, the present invention realizes the process of individually winding up and arranging and limiting multiple transmission lines, so that the corresponding lines can be quickly found during the maintenance of photovoltaic equipment, which improves the smoothness of operation when the equipment is repaired, and the use effect of the junction box in the actual application process;

[0019] In addition, when the present invention is in use, it realizes warning assistance when connecting and dragging the other end of the transmission line, avoiding the loosening of the connection between the transmission line and the wiring piece due to excessive pulling and dragging of the transmission line, ensuring the operating stability of the photovoltaic equipment, and further improving the use effect of the junction box when connecting and protecting the transmission line of the photovoltaic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is an overall isometric structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the installation structure of the limiting auxiliary frame and the box body of the present invention.

[0025] Figure 3 It is a schematic cross-sectional view of the connection between the box body and the box cover of the present invention.

[0026] Figure 4 It is a schematic diagram of the positioning auxiliary structure and the box cover installation structure of the present invention.

[0027] Figure 5 It is a schematic structural diagram of the position limiting auxiliary frame of the present invention after being flipped upward.

[0028] Figure 6 It is a schematic diagram of the installation structure of the limit operating frame and the supporting auxiliary frame of the present invention.

[0029] Figure 7 It is a schematic diagram of the installation structure of the driving auxiliary shaft and the take-up shaft of the present invention.

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the connection between the position limiting auxiliary frame and the line-forming auxiliary mechanism of the present invention.

[0031] Reference numerals list

[0032] 1. Box body; 101. Mounting frame; 2. Box cover; 201. Sealing auxiliary frame; 3. Limit block; 301. Positioning column; 302. Elastic reset member; 303. Docking auxiliary groove; 4. Wiring piece; 5. Limit auxiliary frame; 501. Positioning auxiliary groove; 502. Support auxiliary frame; 503. Limit operation frame; 6. Driving auxiliary shaft; 601. Take-up shaft; 602. Active bevel gear; 603. Driven bevel gear; 604. Limit auxiliary ring; 605. Elastic traction member; 606. Transmission cam; 607. Warning auxiliary frame; 608. Guide column; 7. Wire trough; 8. Protective auxiliary member; 801. Flexible protective tube. DETAILED DESCRIPTION

[0033] Example 1: Please refer to Figures 1 to 3 As shown:

[0034] The present invention provides a photovoltaic device connection junction box, comprising a box body 1, a box cover 2, a positioning auxiliary structure, a wiring piece 4, an angle control mechanism, a line-straightening auxiliary mechanism, and a wire-through groove 7; the box cover 2 is arranged on the outer side of the top end surface of the box body 1; the positioning auxiliary structure is arranged on the inner side of the connection between the box body 1 and the box cover 2; there are multiple wiring pieces 4, and the multiple wiring pieces 4 are evenly arranged and arranged at the rear end of the inner side of the box body 1; the angle control mechanism is arranged at the front end of the inner side of the box body 1, and the angle control mechanism includes: a limiting auxiliary frame 5, and the limiting auxiliary frame 5 is hingedly arranged at the inner end of the box body 1; the line-straightening auxiliary mechanism is arranged on the outer side of the limiting auxiliary frame 5, and the line-straightening auxiliary mechanism includes: a driving auxiliary shaft 6 and a wire-taking shaft 601, and the driving auxiliary shaft 6 is laterally rotatably connected to the inner end of the limiting auxiliary frame 5; there are multiple wire-taking shafts 601, and the multiple wire-taking shafts 601 are evenly arranged and vertically rotatably arranged on the outer side of the driving auxiliary shaft 6; there are multiple wire-through grooves 7, and the multiple wire-through grooves 7 are evenly arranged and opened at the front and rear ends of the box body 1.

[0035] Among them, multiple mounting brackets 101 are evenly arranged and fixedly connected to the outer side of the box body 1, and the inner sides of the multiple mounting brackets 101 are all provided with mounting through holes;

[0036] The outer end of the inner end surface of the box cover 2 is fixedly connected with a sealing auxiliary frame 201 , and the inner side of the sealing auxiliary frame 201 is fixedly connected with a sealing auxiliary strip. The position and size of the sealing auxiliary frame 201 are relatively correct to the position and size of the box body 1 .

[0037] Among them, the positioning auxiliary structure includes: a limit block 3, a positioning column 301, an elastic reset member 302, and a docking auxiliary groove 303; there are four limit blocks 3, and the four limit blocks 3 are evenly arranged and fixedly connected to the outside of the four angles in the box cover 2; there are four positioning columns 301, and the four positioning columns 301 are elastically connected to the outside of the four limit blocks 3 respectively; there are four elastic reset members 302, and the four elastic reset members 302 are respectively fixedly connected to the inner side of the connection between the four limit blocks 3 and the four positioning columns 301; there are four docking auxiliary grooves 303, and the four docking auxiliary grooves 303 are evenly arranged and opened on the outside of the top end surface of the box body 1, and the inner sides of the four docking auxiliary grooves 303 are all provided with positioning grooves, and the positions of the docking auxiliary grooves 303 are relatively positive to the positions of the positioning columns 301.

[0038] Among them, the angle control mechanism also includes: a support auxiliary frame 502 and a limit operating frame 503. There are two support auxiliary frames 502. The two support auxiliary frames 502 are symmetrically arranged on the outside of the limit auxiliary frame 5. The outside of the support auxiliary frame 502 is fixedly connected to the box body 1, and the support auxiliary frame 502 is hingedly connected to the limit auxiliary frame 5; the limit operating frame 503 is fixedly connected to the outer end of the limit auxiliary frame 5 by an elastic member. The limit operating frame 503 is a polygonal structure, and a limit operating groove is provided in the support auxiliary frame 502 at a position aligned with the limit operating frame 503.

[0039] The outer end of the position limiting auxiliary frame 5 is evenly arranged with a plurality of positioning auxiliary grooves 501 , and the positions of the plurality of positioning auxiliary grooves 501 are aligned with the positions of the wiring piece 4 .

[0040] The specific usage and function of this embodiment are as follows:

[0041] When the present invention is in use, after the positioning column 301 is aligned with the position of the docking auxiliary groove 303, the connection assistance between the sealing auxiliary frame 201 and the box body 1 is realized during the process of pressing the box cover 2 downwards. After the box cover 2 is pressed to the specified position, the elastic reset member 302 presses the positioning column 301 inwards and pushes the positioning column 301 into the positioning groove, thereby realizing a rapid positioning and installation process between the box body 1 and the box cover 2. After the positioning column 301 is dragged outwards and the box cover 2 is lifted upwards, a rapid disassembly process between the box cover 2 and the box body 1 is realized. After the transmission line and the wiring piece 4 are connected in a limited manner in sequence, and the transmission line is placed in the corresponding positioning auxiliary groove 501, the limiting operating frame 503 is dragged outwards, and the limiting auxiliary frame 5 is flipped upwards so that the limiting auxiliary frame 5 and the box body 1 are perpendicular to each other, the elastic member resets the limiting operating frame 503, thereby realizing a positioning auxiliary process for the support angle of the limiting auxiliary frame 5.

[0042] Example 2: Based on Example 1, please refer to Figures 4 to 8 Shown

[0043] Among them, the line-straightening auxiliary mechanism also includes: a driving bevel gear 602 and a driven bevel gear 603. There are multiple driving bevel gears 602, and the multiple driving bevel gears 602 are evenly arranged and coaxially fixedly connected to the outside of the driving auxiliary shaft 6; there are multiple driven bevel gears 603, and the multiple driven bevel gears 603 are coaxially fixedly connected to the outside of the bottom end faces of multiple take-up shafts 601. After the limiting auxiliary frame 5 is flipped upward, the driving bevel gear 602 and the driven bevel gear 603 are meshed with each other, and the driving bevel gear 602 and the driven bevel gear 603 together constitute a bevel gear transmission mechanism.

[0044] Among them, the line-straightening auxiliary mechanism also includes: a limiting auxiliary ring 604 and an elastic traction member 605. There are multiple limiting auxiliary rings 604, and the multiple limiting auxiliary rings 604 are respectively and concentrically rotatably arranged on the outside of the multiple take-up shafts 601, and the transverse cross-section of the multiple limiting auxiliary rings 604 is an L-shaped structure; there are multiple elastic traction members 605, and the multiple elastic traction members 605 are respectively fixedly connected to the inner side of the connection between the multiple limiting auxiliary rings 604 and the take-up shaft 601.

[0045] Among them, the line-straightening auxiliary mechanism also includes: a transmission cam 606, a warning auxiliary frame 607, and a guide column 608; there are multiple transmission cams 606, and the multiple transmission cams 606 are coaxially fixedly connected to the outer sides of the top end surfaces of multiple take-up shafts 601; the warning auxiliary frame 607 is slidably connected to the inner side of the box body 1; there are two guide columns 608, and the two guide columns 608 are symmetrically fixedly connected to the inner end of the box body 1, and the connection between the two guide columns 608 and the warning auxiliary frame 607 is fixedly connected by a limiting elasticity; after the limiting auxiliary frame 5 is flipped forward, the transmission cam 606 and the warning auxiliary frame 607 are pressed against each other, and the warning auxiliary frame 607 and the transmission cam 606 together constitute a cam transmission mechanism.

[0046] Among them, the outer sides of multiple wire grooves 7 are concentrically fixedly connected with protective auxiliary parts 8, and the outer ends of the protective auxiliary parts 8 are conical tube structures with outer diameters smaller than inner diameters; the outer ends of the protective auxiliary parts 8 are concentrically fixedly connected with flexible protective tubes 801.

[0047] The specific usage and function of this embodiment are as follows:

[0048] When the present invention is in use, after the position limiting auxiliary frame 5 is flipped upward and assisted in positioning, due to the influence of gravity, multiple take-up shafts 601 slide downward at the same time. After the take-up shaft 601 slides downward, the active bevel gear 602 and the driven bevel gear 603 engage with each other. After the transmission line is wound around the outside of the take-up shaft 601, when the driving auxiliary shaft 6 is pushed to rotate, the active bevel gear 602 pushes the multiple driven bevel gears 603 and the take-up shaft 601 to rotate at the same time. When the take-up shaft 601 rotates, the simultaneous winding process of multiple transmission lines is realized. After the transmission line is wound, the position limiting auxiliary frame 5 is flipped forward, and the elastic traction member 605 assists the take-up shaft 601 so that The driven bevel gear 603 is away from the active bevel gear 602. When the transmission line is dragged and arranged and the other end of the transmission line is connected to the photovoltaic device, the corresponding take-up shaft 601 can be rotated independently. During the process of dragging the transmission line, the corresponding take-up shaft 601 rotates at the same time. When the take-up shaft 601 rotates, the transmission cam 606 rotates synchronously. During the rotation of the transmission cam 606, the warning auxiliary frame 607 is driven and assisted. When the warning auxiliary frame 607 slides up and down, an auxiliary process of beating the box body 1 is realized. When the transmission line on the take-up shaft 601 is finished, the take-up shaft 601 stops rotating, and the warning auxiliary frame 607 stops beating the box body 1.

Claims

1. A photovoltaic equipment connection junction box, comprising: A box body (1), a box cover (2), a positioning auxiliary structure, a plurality of wiring pieces (4), an angle control mechanism, a line straightening auxiliary mechanism, and a plurality of line through grooves (7); the box cover (2) is arranged on the outer side of the top end surface of the box body (1); the positioning auxiliary structure is arranged on the inner side of the connection between the box body (1) and the box cover (2); the plurality of wiring pieces (4) are evenly arranged on the rear end of the inner side of the box body (1); the angle control mechanism is arranged on the front end of the inner side of the box body (1), and the angle control mechanism includes: a limit auxiliary mechanism; The auxiliary frame (5) is hingedly arranged at the inner end of the box body (1); the auxiliary wire-straightening mechanism is arranged on the outer side of the auxiliary frame (5), and the auxiliary wire-straightening mechanism comprises: an auxiliary driving shaft (6) and a plurality of wire-taking shafts (601); the auxiliary driving shaft (6) is rotatably connected to the inner end of the auxiliary frame (5); the plurality of wire-taking shafts (601) are evenly arranged and vertically rotatably arranged on the outer side of the auxiliary driving shaft (6); and the plurality of wire-passing grooves (7) are evenly arranged and opened at the front and rear ends of the box body (1).

2. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: A plurality of mounting frames (101) are evenly arranged and fixedly connected to the outer side of the box body (1), and mounting through holes are provided on the inner sides of the plurality of mounting frames (101); The outer end of the inner end surface of the box cover (2) is fixedly connected to a sealing auxiliary frame (201), the inner side of the sealing auxiliary frame (201) is fixedly connected to a sealing auxiliary strip, and the position and size of the sealing auxiliary frame (201) are relatively aligned with the position and size of the box body (1).

3. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The positioning auxiliary structure comprises: four limit blocks (3), four positioning posts (301), four elastic reset members (302), and four docking auxiliary grooves (303); the four limit blocks (3) are evenly arranged and fixedly connected to the outside of four included angles in the box cover (2); the four positioning posts (301) are elastically connected to the outside of the four limit blocks (3); the four elastic reset members (302) are respectively fixedly connected to the inside of the connection between the four limit blocks (3) and the four positioning posts (301); the four docking auxiliary grooves (303) are evenly arranged and opened on the outside of the top end surface of the box body (1), and the inner sides of the four docking auxiliary grooves (303) are all provided with positioning grooves, and the positions of the docking auxiliary grooves (303) are relatively positive to the positions of the positioning posts (301).

4. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The angle control mechanism further comprises: two supporting auxiliary frames (502) and a position limiting operating frame (503); the two supporting auxiliary frames (502) are symmetrically arranged on the outer side of the position limiting auxiliary frame (5); the outer side of the supporting auxiliary frame (502) is fixedly connected to the box body (1); the supporting auxiliary frame (502) and the position limiting auxiliary frame (5) are hingedly connected; the position limiting operating frame (503) of polygonal structure is fixedly connected to the outer end of the position limiting auxiliary frame (5) by an elastic member; and a position limiting operating groove is provided in the supporting auxiliary frame (502) at a position aligned with the position limiting operating frame (503).

5. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The outer end of the position limiting auxiliary frame (5) is evenly arranged with a plurality of positioning auxiliary grooves (501), and the positions of the plurality of positioning auxiliary grooves (501) are aligned with the position of the wiring piece (4).

6. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The line-straightening auxiliary mechanism further comprises: a plurality of active bevel gears (602) and a plurality of driven bevel gears (603); the plurality of active bevel gears (602) are evenly arranged and coaxially fixedly connected to the outside of the auxiliary driving shaft (6); the plurality of driven bevel gears (603) are coaxially fixedly connected to the outside of the bottom end surfaces of the plurality of take-up shafts (601), respectively; after the position-limiting auxiliary frame (5) is turned upward, the active bevel gears (602) and the driven bevel gears (603) are meshed with each other, and the active bevel gears (602) and the driven bevel gears (603) together form a bevel gear transmission mechanism.

7. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The line-straightening auxiliary mechanism further comprises: a plurality of position-limiting auxiliary rings (604) and a plurality of elastic traction members (605); the plurality of position-limiting auxiliary rings (604) are respectively and concentrically rotatably arranged on the outside of the plurality of wire-receiving shafts (601); the transverse cross-sections of the plurality of position-limiting auxiliary rings (604) are L-shaped structures; and the plurality of elastic traction members (605) are respectively and fixedly connected to the inner sides of the connection points between the plurality of position-limiting auxiliary rings (604) and the wire-receiving shafts (601).

8. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: The line-straightening auxiliary mechanism further comprises: a plurality of transmission cams (606), a warning auxiliary frame (607), and two guide posts (608); the plurality of transmission cams (606) are respectively coaxially fixedly connected to the outer sides of the top end faces of the plurality of take-up shafts (601); the warning auxiliary frame (607) is slidably connected to the inner side of the box body (1); the two guide posts (608) are fixedly connected to the inner end of the box body (1) in a symmetrical manner, and the connection between the two guide posts (608) and the warning auxiliary frame (607) is fixedly connected by a limiting elasticity; after the limiting auxiliary frame (5) is flipped forward, the transmission cam (606) and the warning auxiliary frame (607) are pressed against each other, and the warning auxiliary frame (607) and the transmission cam (606) together constitute a cam transmission mechanism.

9. A photovoltaic device connection junction box as claimed in claim 1, characterized in that: A plurality of the wire-through grooves (7) are concentrically fixedly connected to the outer sides with a protective auxiliary component (8), the outer end of the protective auxiliary component (8) being a conical tube structure with an outer diameter smaller than an inner diameter; and a flexible protective tube (801) is concentrically fixedly connected to the outer end of the protective auxiliary component (8).

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