CN218162388U

CN218162388U - A lock joint formula connection structure for photovoltaic terminal box

Info

Publication number: CN218162388U
Application number: CN202222160106.0U
Authority: CN
Inventors: 吕冰吉; 吕春明
Original assignee: Suzhou Chunyi Photovoltaic Co ltd
Current assignee: Suzhou Chunyi Photovoltaic Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-27
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a lock joint formula connection structure for photovoltaic terminal box belongs to photovoltaic terminal box technical field, include: the box comprises a box body and a box cover supported at the top of the box body, wherein a connecting assembly is arranged between the box cover and the box body; coupling assembling includes integrated into one piece at the carriage at the inboard top of box body and connects the installing frame in the lid bottom, and the installing frame lock joint is in the inboard of carriage, the bottom of lid is rectangular array integrated into one piece and has four inserted bars, the inboard bottom integrated into one piece of box body has the spliced pole of cup jointing at the inserted bar lateral wall, and the inserted bar runs through the spliced pole and plugs in the bottom of box body, the bottom of box body is constructed the jack that is located the inserted bar bottom, the bottom spiro union of inserted bar has fixing bolt, and fixing bolt's head is located the inboard of jack. This a lock joint formula connection structure for photovoltaic terminal box, the junction of lid and box body can not take place not hard up in order to avoid the dust to get into, and can prevent that the PCB board from intaking.

Description

A lock joint formula connection structure for photovoltaic terminal box

Technical Field

The utility model belongs to the technical field of the photovoltaic terminal box, especially, a lock joint formula connection structure for photovoltaic terminal box.

Background

The photovoltaic junction box is a connecting device between a solar cell array formed by solar cell modules and a solar charging control device, and it is needless to say that the photovoltaic junction box needs to have a stable structure in order to ensure the whole stable operation, so that the connection structure needs to be improved in a targeted manner.

For example, a clamping structure for a photovoltaic junction box, which is provided with chinese utility model application No. CN201920893073.6, is improved in a targeted manner, but the device still has the following disadvantages: the junction of lid and box body takes place to become flexible easily and leads to the dust to get into.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lock joint formula connection structure for photovoltaic terminal box to solve the problem that proposes in the background art.

The technical scheme is as follows: a snap-on connection for a photovoltaic junction box, comprising:

the box comprises a box body and a box cover supported at the top of the box body, wherein a connecting assembly is arranged between the box cover and the box body;

coupling assembling includes integrated into one piece at the link of the inboard top of box body and connects the installing frame in the lid bottom, and the installing frame lock joint is in the inboard of link, the bottom of lid is rectangle array integrated into one piece and has four inserted bars, the inboard bottom integrated into one piece of box body has the spliced pole of cup jointing at the inserted bar lateral wall, and the inserted bar runs through the spliced pole and plug in the bottom of box body, the bottom of box body is constructed has the jack that is located the inserted bar bottom, the bottom spiro union of inserted bar has fixing bolt, and fixing bolt's head is located the inboard of jack, PCB board and the waterproof component who corresponds are installed to the inboard bottom of box body.

In a further embodiment, the waterproof assembly comprises a mounting groove formed in the bottom of the box body and a fixing frame connected to the bottom of the inner side of the box body, the PCB is inserted into the inner side of the fixing frame, and a notch corresponding to the mounting groove is formed in the bottom of the fixing frame.

In a further embodiment, the inner sides of the mounting grooves are respectively provided with water absorption cotton and a dust screen, and the water absorption cotton is positioned at the top of the dust screen.

In a further embodiment, a waterproof plug abutting against the head of the fixing bolt is inserted into the inner side of the insertion hole.

In a further embodiment, injection molding integrated forming structures are respectively arranged between the box body and the connecting frame, between the box cover and the inserting rod and between the box body and the connecting column.

In a further embodiment, a plurality of joints corresponding to the PCB are inserted in a side-by-side manner at one side of the box body.

The utility model discloses a technological effect and advantage: according to the buckling connection structure for the photovoltaic junction box, the box cover is inserted into the inner side of the connecting column through the four inserting rods and fixed to ensure the connection stability, meanwhile, the connection stability is further improved through buckling the mounting frame in the connecting frame, stress can be dispersed by the structures to avoid loosening of a certain part when external force impact occurs, and the connection part of the box cover and the box body cannot be loosened to avoid dust entering;

the water absorption cotton can absorb water which is required to enter from the slot, the PCB is supported by the fixing frame, and the top of the PCB is prevented from entering water through the structure of the mounting frame and the connecting frame, so that the PCB can be effectively prevented from entering water;

this a lock joint formula connection structure for photovoltaic terminal box, the junction of lid and box body can not take place not hard up in order to avoid the dust to get into, and can prevent that the PCB board from intaking.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along the line a-a of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a box body; 2. a joint; 3. a box cover; 4. a connecting assembly; 5. a connecting frame; 6. installing a frame; 7. inserting a rod; 8. connecting columns; 9. fixing the bolt; 10. a PCB board; 11. a fixing frame; 12. absorbent cotton; 13. a dust screen; 14. a waterproof plug; 15. label paper; 16. and (7) a supporting block.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to solve the problem, the present invention provides a fastening connection structure for a photovoltaic junction box as shown in fig. 1 to 3, including: the photovoltaic junction box comprises a box body 1 and a box cover 3 supported at the top of the box body 1, label paper 15 for marking technical parameters is bonded at the top of the box cover 3, supporting blocks 16 are bonded at four corners of the bottom of the box body 1, a plurality of joints 2 corresponding to PCBs 10 are spliced in parallel on one side of the box body 1 for photovoltaic junction, a connecting assembly 4 is mounted between the box cover 3 and the box body 1, the connecting assembly 4 comprises a connecting frame 5 which is integrally formed at the top of the inner side of the box body 1 in an injection molding mode, and the injection molding integral forming structure is higher in strength and is more difficult to damage;

the bottom of the box cover 3 is connected with a mounting frame 6 through a plurality of screws, the mounting frame 6 is buckled on the inner side of the connecting frame 5, the bottom of the box cover 3 is rectangular array injection molded and integrally formed with four insertion rods 7, the bottom of the inner side of the box body 1 is injection molded and integrally formed with a connecting column 8, and the connecting column 8 is sleeved on the side wall of the insertion rods 7, so that the box cover 3 is prevented from being loosened due to the fact that the insertion rods 7 are stressed and deflected;

the inserted link 7 runs through the connecting column 8 and is inserted and connected at the bottom of the box body 1, the bottom of the box body 1 is provided with a jack positioned at the bottom of the inserted link 7, the bottom of the inserted link 7 is screwed with a fixing bolt 9, the stability of the inserted link 7 inserted and connected at the inner side of the connecting column 8 is improved, the head of the fixing bolt 9 is positioned at the inner side of the jack, and the inner side of the jack is inserted and connected with a waterproof plug 14 which is abutted against the head of the fixing bolt 9 to prevent water from entering the jack;

in order to prevent the PCB from entering water, as shown in fig. 2 and 3, a PCB 10 and a corresponding waterproof assembly are mounted at the bottom of the inner side of the box body 1, the waterproof assembly includes a mounting groove constructed at the bottom of the box body 1, the mounting groove is used for heat dissipation, a fixing frame 11 is bonded at the bottom of the inner side of the box body 1, and the PCB 10 is inserted into the inner side of the fixing frame 11;

the bottom of fixed frame 11 is constructed to have the fluting that corresponds with the mounting groove, holds up PCB board 10, even there is water infiltration box body 1 also can not contact with PCB board 10 from the beginning, and cotton 12 and dust screen 13 of absorbing water are installed respectively to the inboard of mounting groove, and the cotton 12 that just absorbs water is located the top of dust screen 13, and dust screen 13 can prevent into the ash.

According to the working principle, the buckling type connecting structure for the photovoltaic junction box is characterized in that the box cover 3 is inserted into the connecting column 8 through the four inserting rods 7 and is pressed downwards, then the fixing bolts 9 are screwed into the inserting holes and the waterproof plugs 14 are inserted into the inserting holes, after the installation is finished, the four inserting rods 7 are inserted into the inner side of the connecting column 8 and are fixed through the fixing bolts 9 to ensure the connection stability, meanwhile, the connecting stability is further improved through buckling the mounting frame 6 in the connecting frame 5, and the structures can disperse stress to avoid loosening of a certain part when external force impact occurs, so that dust can be prevented from entering;

the absorbent wool 12 can absorb water which is expected to enter from the slot, and the PCB 10 is supported by the fixing frame 11, and the top of the PCB is prevented from entering water by the structure of the mounting frame 6 and the connecting frame 5, so that the PCB 10 can be effectively prevented from entering water.

It is noted that, herein, relational terms such as one and two are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A clip-on connection structure for a photovoltaic junction box, comprising:

the box comprises a box body (1) and a box cover (3) supported at the top of the box body (1), wherein a connecting assembly (4) is arranged between the box cover (3) and the box body (1);

the method is characterized in that: coupling assembling (4) include connection frame (5) and the installing frame (6) of connection in lid (3) bottom at the inboard top of box body (1) integrated into one piece, and installing frame (6) lock joint is in the inboard of connection frame (5), the bottom of lid (3) is rectangle array integrated into one piece and has four inserted bars (7), the inboard bottom integrated into one piece of box body (1) has spliced pole (8) of cup jointing at inserted bar (7) lateral wall, and inserted bar (7) run through spliced pole (8) and plug in the bottom of box body (1), the bottom of box body (1) is constructed the jack that is located inserted bar (7) bottom, the bottom spiro union of inserted bar (7) has fixing bolt (9), and the head of fixing bolt (9) is located the inboard of jack, PCB board (10) and the corresponding waterproof component are installed to the inboard bottom of box body (1).

2. The buckling-type connecting structure for the photovoltaic junction box as recited in claim 1, wherein: waterproof assembly is including constructing mounting groove in box body (1) bottom and connecting fixed frame (11) in box body (1) inboard bottom, and PCB board (10) peg graft in the inboard of fixed frame (11), the bottom construction of fixed frame (11) has the fluting that corresponds with the mounting groove.

3. A buckle-type connecting structure for photovoltaic junction box according to claim 2, wherein: the inner sides of the mounting grooves are respectively provided with absorbent cotton (12) and a dust screen (13), and the absorbent cotton (12) is positioned at the top of the dust screen (13).

4. The buckling-type connecting structure for the photovoltaic junction box as recited in claim 1, wherein: the inner side of the jack is inserted with a waterproof plug (14) which is propped against the head of the fixing bolt (9).

5. The buckle-type connecting structure for the photovoltaic junction box as claimed in claim 1, wherein: the injection molding integrated structure is arranged between the box body (1) and the connecting frame (5), between the box cover (3) and the inserted link (7) and between the box body (1) and the connecting column (8).

6. The buckling-type connecting structure for the photovoltaic junction box as recited in claim 1, wherein: one side of the box body (1) is inserted with a plurality of joints (2) corresponding to the PCB (10).