CN214675061U

CN214675061U - Solar photovoltaic junction box

Info

Publication number: CN214675061U
Application number: CN202022997106.7U
Authority: CN
Inventors: 张建华
Original assignee: Tianjin Xingyang Electronic Technology Co ltd
Current assignee: Tianjin Xingyang Electronic Technology Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-11-09
Anticipated expiration: 2030-12-11

Abstract

The utility model provides a solar photovoltaic terminal box belongs to photovoltaic terminal box technical field. The solar photovoltaic junction box comprises a lower junction box body, an upper junction box cover and a fixing mechanism. Lower junction box body is including lower box body and threading pipe, the threading pipe intercommunication is fixed the surface of lower box body, it includes lid and fixed plate to go up the junction box lid, the bottom surface of baffle is inlayed and is had the fin, the semiconductor refrigeration piece is fixed the top surface of baffle, the semiconductor refrigeration piece with the surface of fin is hugged closely, the fixed plate is fixed the inside of cavity, the surface mounting of fixed plate has the fan, fixed establishment includes inserted block and mounting, mounting swing joint is in the inside of cavity, the tip threaded connection of mounting is in the inside of inserted block. The utility model discloses can improve the radiating efficiency of photovoltaic terminal box, be favorable to improving its internal electrical components's life.

Description

Solar photovoltaic junction box

Technical Field

The utility model relates to a photovoltaic terminal box field particularly, relates to a solar photovoltaic terminal box.

Background

The connecting device between the solar cell array formed by the solar cell modules and the solar charging control device is mainly used for connecting and protecting the solar photovoltaic modules, connecting the electric power generated by the solar cells with an external circuit and conducting the current generated by the photovoltaic modules.

At present, the existing solar photovoltaic junction box is poor in heat dissipation effect due to relative sealing in the use process, and therefore the service life of internal components is easily influenced in the long-time use process.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above insufficiency, the utility model provides a solar photovoltaic terminal box aims at improving solar photovoltaic terminal box, the relatively poor problem of radiating effect.

The utility model discloses a realize like this:

the utility model provides a solar photovoltaic terminal box, include junction box body down, go up junction box cover and fixed establishment.

The lower junction box body comprises a lower box body and a threading pipe, the threading pipe is communicated and fixed on the outer surface of the lower box body, the upper junction box cover comprises an upper box cover, a partition plate, a semiconductor refrigerating piece and a fixing plate, the partition plate is fixed in the upper box cover, a cavity is formed between the partition plate and the upper box cover, the bottom surface of the partition plate is inlaid with a radiating fin, the semiconductor refrigerating piece is fixed on the top surface of the partition plate, the semiconductor refrigerating piece is tightly attached to the surface of the radiating fin, the fixing plate is fixed in the cavity, the fixing plate is positioned on one side of the semiconductor refrigerating piece, a fan is arranged on the surface of the fixing plate, ventilation holes are formed in the inner part of the fixing plate and the two sides of the cavity, the fixing mechanism comprises an insert block, a fixing block and a fixing part, the insert block is fixed on the outer surface of the upper box cover, the fixed block is fixed on the outer surface of the lower box body, a slot is formed in the fixed block, a cavity is formed in one side of the slot, the insert block is inserted in the slot in a sliding mode, the fixing piece is movably connected in the cavity, and the end portion of the fixing piece is in threaded connection with the inside of the insert block.

The utility model discloses an in one embodiment, the top surface of box body is fixed with annular flange down, go up lid bottom surface be fixed with annular flange assorted draw-in groove, the inside of draw-in groove is provided with the sealing layer, annular flange joint is in the inside of draw-in groove.

In an embodiment of the present invention, the outer surface of the lower box body is fixed with a connecting plate, and the inside of the connecting plate is provided with a nail hole.

In an embodiment of the present invention, the fan includes a motor and a fan blade, the motor is installed on the surface of the fixing plate, and the fan blade is fixed on the output end of the motor.

In an embodiment of the present invention, the fixing member includes a threaded post and a movable plate, the threaded post is fixed in the movable plate, the movable plate is connected to the inner surface of the cavity in a sliding manner, and one end of the threaded post is connected to the cavity in a threaded manner in the insertion block.

In an embodiment of the present invention, the other end of the threaded post penetrates through the cavity and extends to the outside, and the other end of the threaded post is fixed with the rotating portion.

The utility model discloses an in an embodiment, the inside of inserted block seted up with screw thread post assorted screw hole.

In an embodiment of the present invention, an elastic member is fixed to the bottom of the slot.

In an embodiment of the present invention, the elastic member includes a sliding plate slidably connected inside the insertion groove and an elastic portion fixed between the insertion groove and the sliding plate.

In an embodiment of the present invention, the two ends of the elastic portion are sleeved and fixed with positioning columns, and the positioning columns are respectively connected with the sliding plate and the surface fixing of the slot.

The utility model has the advantages that: the utility model discloses a solar photovoltaic terminal box that above-mentioned design obtained, during the use, insert the inside slot of fixed block with the inserted block on upper cover surface, then press down the bottom that the lid made the inserted block and take place the extrusion with the elastic component and produce elastic deformation, then through rotating the screw thread post, make in the tip threaded connection inserted block of screw thread post, thereby will go up the lid and fix, then when the photovoltaic terminal box uses, can transmit the inside heat transfer of box body for the semiconductor refrigeration piece down through the fin, and transmit to the cavity in through the opposite side of semiconductor refrigeration piece, at this moment, the inside air of fan work drive cavity flows, outwards discharge through the ventilation hole, can improve the radiating efficiency of photovoltaic terminal box like this in the use, be favorable to improving its internal electrical components's life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a first view angle structure of a solar photovoltaic junction box provided by an embodiment of the present invention;

fig. 2 is a schematic view of a first view angle cross-sectional structure of a solar photovoltaic junction box according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2;

fig. 4 is an enlarged view of the position B in fig. 2.

In the figure: 100-lower junction box body; 110-lower box; 111-an annular flange; 120-a connecting plate; 130-a threading tube; 200-mounting a junction box cover; 210-putting the box cover; 211-card slot; 220-a separator; 221-a chamber; 2211-vent; 222-a heat sink; 230-semiconductor refrigerating sheet; 240-a fixed plate; 250-a fan; 251-a motor; 252-fan blades; 300-a securing mechanism; 310-an insert block; 311-a threaded hole; 320-fixing block; 321-a slot; 322-a cavity; 340-a fixing member; 341-threaded post; 342-a movable plate; 3411-a rotating part; 350-an elastic member; 351-sliding plate; 352-an elastic portion; 3521-location post.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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 specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a solar photovoltaic junction box comprises a lower junction box body 100, an upper junction box cover 200 and a fixing mechanism 300.

The upper junction box cover 200 is mounted on the top surface of the lower junction box body 100 through the fixing mechanism 300, so that the mounting is more convenient, the heat dissipation effect is improved, and the service life of components inside the photovoltaic junction box is prolonged.

Referring to fig. 1 to 3, the lower junction box body 100 includes a lower box body 110 and a threading pipe 130, and the threading pipe 130 is fixed to an outer surface of the lower box body 110 in a communicating manner.

The top surface of lower box body 110 is fixed with annular flange 111, and upper cover 210 bottom surface is fixed with the draw-in groove 211 with annular flange 111 assorted, and the inside of draw-in groove 211 is provided with the sealing layer, and annular flange 111 joint is in the inside of draw-in groove 211, and the sealing layer is the rubber layer here, hugs closely each other through draw-in groove 211 and annular flange 111, is favorable to strengthening the leakproofness between upper cover 210 and the lower box body 110 and avoids water to get into.

The outer surface of lower box body 110 is fixed with connecting plate 120, and the nail hole has been seted up to the inside of connecting plate 120, and the setting in the inside nail hole of connecting plate 120 here can conveniently be fixed the photovoltaic terminal box.

Referring to fig. 1 to 4, the upper junction box cover 200 includes an upper box cover 210, a partition plate 220, a semiconductor chilling plate 230 and a fixing plate 240, the partition plate 220 is fixed inside the upper box cover 210, a cavity 221 is formed between the partition plate 220 and the upper box cover 210, a heat sink 222 is embedded in a bottom surface of the partition plate 220, the semiconductor chilling plate 230 is fixed on a top surface of the partition plate 220, the semiconductor chilling plate 230 is tightly attached to a surface of the heat sink 222, the fixing plate 240 is fixed inside the cavity 221, the fixing plate 240 is located on one side of the semiconductor chilling plate 230, a fan 250 is installed on a surface of the fixing plate 240, and ventilation holes 2211 are formed inside the fixing plate 240 and on two sides of the cavity 221.

The fan 250 includes a motor 251 and fan blades 252, the motor 251 is mounted on the surface of the fixing plate 240, and the fan blades 252 are fixed at the output end of the motor 251, where the fan blades 252 are driven by the motor 251 to rotate, so as to accelerate the air flow on the surface of the semiconductor cooling plate 230, and improve the heat dissipation effect.

Referring to fig. 1 to 3, the fixing mechanism 300 includes an insertion block 310, a fixing block 320, and a fixing member 340, the insertion block 310 is fixed on the outer surface of the upper case cover 210, the fixing block 320 is fixed on the outer surface of the lower case body 110, an insertion slot 321 is formed in the fixing block 320, a cavity 322 is formed at one side of the insertion slot 321, the insertion block 310 is slidably inserted into the insertion slot 321, the fixing member 340 is movably connected to the inside of the cavity 322, and an end of the fixing member 340 is threadedly connected to the inside of the insertion block 310.

The fixing member 340 includes a threaded column 341 and a movable plate 342, the threaded column 341 is fixed inside the movable plate 342, the movable plate 342 is slidably connected with the inner surface of the cavity 322, and one end of the threaded column 341 penetrates through the cavity 322 and is connected inside the plug 310 in a threaded manner; the other end of the threaded post 341 extends to the outside through the cavity 322, and a rotating part 3411 is fixed to the other end of the threaded post 341; the inside of inserted block 310 is seted up with screw hole 311 of screw thread post 341 assorted, and here rotating part 3411 is the circular plate, drives screw thread post 341 through rotating part 3411 and rotates, makes the tip spiro union of screw thread post 341 in the inside screw hole 311 of inserted block 310, can conveniently fix inserted block 310 to conveniently fix upper cover 210, can not need the fix with screw like this, make upper cover 210 can be simple and convenient more at the dismouting in-process.

The elastic member 350 is fixed to the bottom of the insertion groove 321; the elastic member 350 includes a sliding plate 351 and an elastic portion 352, the sliding plate 351 is slidably connected inside the insertion slot 321, the elastic portion 352 is fixed between the insertion slot 321 and the sliding plate 351, the elastic portion 352 is a spring, and the sliding plate 351 and the elastic portion 352 are arranged to facilitate the upward bouncing of the insertion block 310, so that the upper case cover 210 is conveniently separated from the lower case body 110, and the upper case cover 210 is conveniently taken down.

Both ends of elastic component 352 are cup jointed and are fixed with reference column 3521, and reference column 3521 is connected with sliding plate 351 and slot 321's fixed surface respectively, and the setting of reference column 3521 here can conveniently be fixed elastic component 352, improves the fixed stability of elastic component 352 simultaneously.

Specifically, the working principle of the solar photovoltaic junction box is as follows: when the photovoltaic junction box is used, the inserting block 310 on the surface of the upper box cover 210 is inserted into the inner inserting slot 321 of the fixing block 320, then the upper box cover 210 is pressed downwards to enable the bottom of the inserting block 310 and the elastic part 350 to be extruded to generate elastic deformation, the annular flange 111 is tightly attached to the clamping slot 211, at this time, the threaded hole 311 is just aligned with the threaded column 341, then the rotating part 3411 drives the threaded column 341 to rotate, the end part of the threaded column 341 is in threaded connection with the threaded hole 311, and the upper box cover 210 is fixed, so that the upper box cover 210 can be disassembled and assembled without screws and wrenches, the upper box cover 210 is more simply and conveniently disassembled and assembled, then when the photovoltaic junction box is used, heat in the lower box body 110 can be transferred to the semiconductor chilling plate 230 through the radiating fins 222 and transferred to the chamber 221 through the other side of the semiconductor chilling plate 230, at this time, the fan 250 works to drive air in the chamber 221 to flow, the air is discharged outwards through the air vents 2211, so that the heat dissipation efficiency of the photovoltaic junction box can be improved in the use process, and the service life of internal electrical components of the photovoltaic junction box can be prolonged.

It should be noted that the specific model specifications of the semiconductor chilling plate 230 and the motor 251 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the semiconductor chilling plates 230 and the motor 251 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar photovoltaic junction box is characterized by comprising

The lower wiring box body (100), the lower wiring box body (100) comprises a lower box body (110) and a threading pipe (130), and the threading pipe (130) is fixedly communicated with the outer surface of the lower box body (110);

an upper junction box cover (200), wherein the upper junction box cover (200) comprises an upper box cover (210), a partition plate (220), a semiconductor refrigeration sheet (230) and a fixing plate (240), the clapboard (220) is fixed inside the upper box cover (210), a chamber (221) is formed between the clapboard (220) and the upper box cover (210), a heat radiating fin (222) is embedded on the bottom surface of the clapboard (220), the semiconductor refrigerating fin (230) is fixed on the top surface of the clapboard (220), the semiconductor refrigerating sheet (230) is closely attached to the surface of the heat radiating sheet (222), the fixing plate (240) is fixed inside the chamber (221), the fixing plate (240) is positioned at one side of the semiconductor chilling plate (230), the surface of the fixing plate (240) is provided with a fan (250), and the inside of the fixing plate (240) and two sides of the cavity (221) are both provided with vent holes (2211);

fixing mechanism (300), fixing mechanism (300) is including inserted block (310), fixed block (320) and mounting (340), inserted block (310) are fixed the surface of upper box lid (210), fixed block (320) are fixed the surface of lower box body (110), slot (321) have been seted up to the inside of fixed block (320), cavity (322) have been seted up to one side of slot (321), inserted block (310) slide and peg graft in the inside of slot (321), mounting (340) swing joint is in the inside of cavity (322), the tip threaded connection of mounting (340) is in the inside of inserted block (310).

2. The solar photovoltaic junction box of claim 1, wherein an annular flange (111) is fixed on the top surface of the lower box body (110), a clamping groove (211) matched with the annular flange (111) is fixed on the bottom surface of the upper box cover (210), a sealing layer is arranged inside the clamping groove (211), and the annular flange (111) is clamped inside the clamping groove (211).

3. The solar photovoltaic junction box of claim 1, wherein a connecting plate (120) is fixed on an outer surface of the lower box body (110), and nail holes are formed in the connecting plate (120).

4. The solar photovoltaic junction box of claim 1, wherein the fan (250) comprises a motor (251) and fan blades (252), the motor (251) is mounted on the surface of the fixing plate (240), and the fan blades (252) are fixed at the output end of the motor (251).

5. The solar photovoltaic junction box of claim 1, wherein the fixing member (340) comprises a threaded column (341) and a movable plate (342), the threaded column (341) is fixed inside the movable plate (342) in a penetrating manner, the movable plate (342) is connected with the inner surface of the cavity (322) in a sliding manner, and one end of the threaded column (341) penetrates through the cavity (322) and is connected with the inside of the insert block (310) in a threaded manner.

6. The solar photovoltaic junction box of claim 5, wherein the other end of the threaded post (341) extends to the outside through the cavity (322), and a rotating part (3411) is fixed to the other end of the threaded post (341).

7. The solar photovoltaic junction box of claim 5, wherein the plug (310) is internally provided with a threaded hole (311) matched with the threaded post (341).

8. The solar photovoltaic junction box of claim 1, wherein the bottom of the slot (321) is fixed with an elastic member (350).

9. The solar photovoltaic junction box of claim 8, wherein the elastic member (350) comprises a sliding plate (351) and an elastic portion (352), the sliding plate (351) is slidably connected inside the insertion slot (321), and the elastic portion (352) is fixed between the insertion slot (321) and the sliding plate (351).

10. The solar photovoltaic junction box of claim 9, wherein two ends of the elastic part (352) are fixedly sleeved with positioning posts (3521), and the positioning posts (3521) are fixedly connected to the surfaces of the sliding plate (351) and the insertion grooves (321), respectively.