CN211209660U

CN211209660U - Solar photovoltaic junction box

Info

Publication number: CN211209660U
Application number: CN201922336021.1U
Authority: CN
Inventors: 陶元福; 施超; 周紫春
Original assignee: Wuxi Hongfubao Technology Co ltd
Current assignee: Wuxi Hongfubao Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-07
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a solar photovoltaic terminal box, including lower cover, upper cover, buckle, ventilation hole, baffle, first fixture block, second fixture block, third fixture block, connecting block, bolt, connecting rod, adhesive sheet, gasket and screw hole. The utility model has simple structure, the added ventilation opening is mainly used for preventing the electronic element inside the photovoltaic junction box from being overhigh in temperature, thereby playing the ventilation and heat dissipation benefits, and simultaneously avoiding the defects of the original heat dissipation system and preventing the elements inside the junction box from being damaged; the additionally arranged baffle is mainly used for preventing rainwater from permeating into the photovoltaic junction box, and meanwhile, a layer of protection is added to the ventilation opening, so that damage and burning of internal electronic elements caused by permeation into the photovoltaic junction box are avoided; the bonding board of installing additional simultaneously makes things convenient for the installation and the dismantlement of photovoltaic terminal box, also avoids traditional bonding mode to remove the drawback that photovoltaic terminal box dismantled simultaneously.

Description

Solar photovoltaic junction box

Technical Field

The utility model relates to a terminal box specifically is a solar photovoltaic terminal box, belongs to solar photovoltaic technical field.

Background

The selection of the photovoltaic junction box mainly looks at information that the current of the module is required to be, one is the maximum working current and the other is the short-circuit current, the short-circuit current is the maximum current which can be output by the module, the rated current of the junction box is calculated according to the short-circuit current and is higher in safety factor, the junction box is calculated according to the maximum working current and is lower in safety factor, the most scientific selection is carried out according to the rule that the current and the voltage of a battery piece which should be taken out change along with the illumination intensity, the area in which the produced module is used must be known, the maximum illumination intensity is obtained, then the possible maximum current is checked according to the change curve of the current of the battery piece along with the illumination intensity, then the rated current of the junction box is selected and is scientific, and the solar photovoltaic junction box is a connecting device between a solar battery array formed by the solar battery module and a solar energy charging control device, the solar photovoltaic module is mainly used for connecting and protecting the solar photovoltaic module, connecting the electric power generated by the solar cell with an external circuit and conducting the current generated by the photovoltaic module.

The traditional photovoltaic junction box fixing mode mainly adopts silica gel to be pasted on a battery panel, and curing can be performed for several hours, but when elements in the photovoltaic junction box are detected, troubles are brought to dismounting, and the elements can be only completed in a narrow space, so that great troubles are caused; meanwhile, the junction box and the solar cell panel have the same service life, the service life is as long as 20 years, the damage of the junction box can cause fatal damage to the cell panel, but most of the traditional photovoltaic junction boxes are of sealing structures, but in some extremely high temperature weather, the temperature of electronic elements inside the photovoltaic junction box is too high, so that the electronic elements are easily damaged, and meanwhile, the electronic elements inside the photovoltaic junction box need to be particularly noticed to be waterproof, and the internal elements are directly damaged due to water seepage. Therefore, a solar photovoltaic junction box is provided to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a solar photovoltaic terminal box.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a solar photovoltaic terminal box, including the lower cover, the top of lower cover has the upper cover by the buckle joint, the left and right sides inside and outside wall of lower cover link up to open there is the ventilation hole, the outer wall has cup jointed two baffles about the lower cover, the rear end face and the left end face joint of lower cover have first fixture block, the rear end face and the right-hand member face joint of lower cover have the second fixture block, the connecting block has been cup jointed on the top of first fixture block, the terminal surface has link up threaded hole about the connecting block, threaded hole threaded connection has the bolt, the gasket has been cup jointed on the surface of bolt, preceding terminal surface, left end face and the right-hand member face joint of lower cover have the third fixture block, the connecting rod has been cup jointed to the one end of third fixture block, the sticky plate has been cup jointed to.

Preferably, the third clamping block is located at the bottom ends of the first clamping block and the second clamping block, the first clamping block and the second clamping block are of symmetrical structures, the first clamping block and the second clamping block are of symmetrical Z shapes, the first clamping block and the second clamping block are identical in height, the first clamping block and the second clamping block are higher than the third clamping block in height, the surface areas of the first clamping block and the second clamping block are smaller than the surface area of the third clamping block, and the surface structure of the third clamping block is of a U shape.

Preferably, the bolt comprises a screw head, a nut and a stud, the top end of the second fixture block is sleeved with a connecting block, threaded holes are formed in the left end face and the right end face of the connecting block, the connecting block is the same in size and the threaded holes are the same in diameter, the screw head of the bolt is located in the threaded hole in the left end connecting block, the gasket is located between the screw head and the left end face of the left end connecting block, the stud of the bolt is connected to the inside of the two threaded holes in a threaded mode, the nut of the bolt is connected to the upper face of the stud in a threaded mode, and the nut is located on the.

Preferably, the height of lower cover is higher than the height of upper cover, the surface area of lower cover is the same with the surface area of upper cover, the total four of buckle, the left and right ends of joint lower cover and upper cover respectively, two buckles above the left end face of lower cover and upper cover, two buckles above the right end face of lower cover and upper cover.

Preferably, the ventilation hole is angle degree setting, the terminal surface respectively has three ventilation hole about the lower cover, three ventilation hole above the terminal surface is symmetrical structure about the lower cover, the height that highly is less than the buckle of baffle, the width of baffle is greater than the width of buckle, the length of baffle is greater than the length of buckle, the quantity of baffle is two, and two the baffle is symmetrical type structure.

Preferably, the surface structures of the connecting rod and the adhesive plate are in a T-shaped structure, and the surface of the adhesive plate is the sum of the surface areas of the lower cover and the upper cover.

The utility model discloses the beneficial effect who reaches is:

1. when the photovoltaic junction box is used, the additionally arranged ventilation opening is mainly used for preventing the electronic elements in the photovoltaic junction box from being overhigh in temperature, so that the ventilation and heat dissipation benefits are achieved, meanwhile, the defects of an original heat dissipation system are avoided, the elements in the junction box are prevented from being damaged, and a ventilation and heat dissipation function is provided for the interior of the photovoltaic junction box;

2. when the photovoltaic junction box is used, the additionally-installed bonding plate facilitates installation and disassembly of the photovoltaic junction box, the defect that the photovoltaic junction box cannot be disassembled in a traditional bonding mode is avoided, the additionally-installed baffle is mainly used for preventing rainwater from permeating into the photovoltaic junction box, meanwhile, one layer of protection is added for a ventilation opening, and damage and burning of internal electronic elements caused by the internal permeation of the photovoltaic junction box are avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the main view of the full-section structure of the present invention;

FIG. 3 is a schematic left side view of the present invention;

fig. 4 is a schematic top view of the drawing of the present invention.

In the figure: 1. lower cover, 2, upper cover, 3, buckle, 4, ventilation hole, 5, baffle, 6, first fixture block, 7, second fixture block, 8, third fixture block, 9, connecting block, 10, bolt, 11, connecting rod, 12, adhesion plate, 13, gasket, 14, screw hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-4, a solar photovoltaic junction box comprises a lower cover 1, an upper cover 2 is clamped at the top end of the lower cover 1 by a buckle 3, the inner and outer walls of the left and right sides of the lower cover 1 are provided with ventilation holes 4 in a through way, the left and right outer walls of the lower cover 1 are sleeved with two baffles 5, the rear end surface and the left end surface of the lower cover 1 are clamped with first clamping blocks 6, the rear end surface and the right end surface of the lower cover 1 are clamped with second clamping blocks 7, the top end of the first clamping block 6 is sleeved with a connecting block 9, the left end face and the right end face of the connecting block 9 are provided with threaded holes 14 in a penetrating way, the threaded hole 14 is in threaded connection with a bolt 10, a gasket 13 is sleeved on the surface of the bolt 10, the front end face, the left end face and the right end face of the lower cover 1 are connected with a third clamping block 8 in a clamping mode, one end of the third clamping block 8 is connected with a connecting rod 11 in a sleeved mode, and one end of the connecting rod 11 is connected with a sticky plate 12 in a sleeved mode.

The third fixture block 8 is located at the bottom ends of the first fixture block 6 and the second fixture block 7, the first fixture block 6 and the second fixture block 7 are of a symmetrical structure, the first fixture block 6 and the second fixture block 7 are of a symmetrical Z shape, the heights of the first fixture block 6 and the second fixture block 7 are consistent, the heights of the first fixture block 6 and the second fixture block 7 are both higher than the height of the third fixture block 8, the surface areas of the first fixture block 6 and the second fixture block 7 are both smaller than the surface area of the third fixture block 8, and the surface structure of the third fixture block 8 is of a U shape; the bolt 10 consists of a screw head, a nut and a stud, the top end of the second fixture block 7 is sleeved with a connecting block 9, threaded holes 14 are formed in the left end surface and the right end surface of the connecting block 9, the two connecting blocks 9 are the same in size, the diameters of the two threaded holes 14 are the same, the screw head of the bolt 10 is located in the threaded hole 14 above the left end connecting block 9, the gasket 13 is located between the screw head and the left end surface of the left end connecting block 9, the stud of the bolt 10 is connected to the inside of the two threaded holes 14 in a threaded manner, and the nut of the bolt 10 is connected to the upper surface of the stud in a threaded manner and located on; the height of the lower cover 1 is higher than that of the upper cover 2, the surface area of the lower cover 1 is the same as that of the upper cover 2, the number of the buckles 3 is four, the buckles are respectively clamped at the left end and the right end of the lower cover 1 and the upper cover 2, the buckles 3 are arranged on the left end surfaces of the lower cover 1 and the upper cover 2, and the buckles 3 are arranged on the right end surfaces of the lower cover 1 and the upper cover 2; the vent holes 4 are arranged at an angle of 45 degrees, the left end face and the right end face of the lower cover 1 are respectively provided with three vent holes 4, the three vent holes 4 on the left end face and the right end face of the lower cover 1 are of a symmetrical structure, the height of each baffle 5 is smaller than that of each buckle 3, the width of each baffle 5 is larger than that of each buckle 3, the length of each baffle 5 is larger than that of each buckle 3, the number of the baffles 5 is two, and the two baffles 5 are of symmetrical structures; the surface structures of the connecting rod 11 and the adhesive plate 12 are T-shaped structures, and the surface of the adhesive plate 12 is the sum of the surface areas of the lower cover 1 and the upper cover 2.

When the utility model is used, the vent holes 4 are arranged at the left end and the right end of the lower cover 1, mainly to prevent the temperature of the junction box body from being too high, which affects the internal elements to be used continuously or to be damaged, and the vent holes 4 are also arranged to prevent the rainwater from permeating; baffle 5 of both sides is mainly in order to prevent once more that the rainwater from passing through vent 4 infiltration to the terminal box body, arouse the harm that the inside conflagration that produces of terminal box body brought, bolt 10 can block first fixture block 6 and second fixture block 7, thereby make lower cover 1 fix, prevent that the terminal box body from gliding in the time of connecting, third fixture block 8 is placed on the fixture block for firm terminal box body simultaneously, also be in order to place first fixture block 6 and second fixture block 7 simultaneously, there is silica gel above the bonding plate 12, only need solidify several hours and just can fix, first fixture block 6, second fixture block 7 and third fixture block are mainly for the dismantlement of convenient terminal box body.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. The utility model provides a solar photovoltaic terminal box which characterized in that: the novel anti-theft door cover comprises a lower cover (1), wherein an upper cover (2) is clamped at the top end of the lower cover (1) through a buckle (3), ventilation holes (4) are formed in the inner and outer walls of the left side and the right side of the lower cover (1) in a penetrating mode, two baffles (5) are sleeved on the left and right outer walls of the lower cover (1), a first clamping block (6) is clamped on the rear end face and the left end face of the lower cover (1), a second clamping block (7) is clamped on the rear end face and the right end face of the lower cover (1), a connecting block (9) is sleeved on the top end of the first clamping block (6), threaded holes (14) are formed in the left and right end faces of the connecting block (9) in a penetrating mode, bolts (10) are in threaded connection with the threaded holes (14), gaskets (13) are sleeved on the surface of the bolts (10), a third clamping block (8) is clamped on the front end face, the left end face and, one end of the connecting rod (11) is sleeved with a sticky plate (12).

2. The solar photovoltaic junction box of claim 1, wherein: the third fixture block (8) is located at the bottom ends of the first fixture block (6) and the second fixture block (7), the first fixture block (6) and the second fixture block (7) are of symmetrical structures, the first fixture block (6) and the second fixture block (7) are symmetrical Z-shaped, the first fixture block (6) and the second fixture block (7) are identical in height, the first fixture block (6) and the second fixture block (7) are higher than the third fixture block (8), the surface areas of the first fixture block (6) and the second fixture block (7) are smaller than the surface area of the third fixture block (8), and the surface structure of the third fixture block (8) is U-shaped.

3. The solar photovoltaic junction box of claim 1, wherein: bolt (10) comprise spiral shell head, nut and double-screw bolt, and connecting block (9) have been cup jointed on the top of second fixture block (7), threaded hole (14), two are opened to the terminal surface about connecting block (9) the size of connecting block (9) is the same, two the diameter of threaded hole (14) is the same, the spiral shell head of bolt (10) is located screw hole (14) above left end connecting block (9), gasket (13) are located between the left end face of spiral shell head and left end connecting block (9), the double-screw bolt threaded connection of bolt (10) is to the inside of two threaded hole (14), the nut threaded connection of bolt (10) is to above the double-screw bolt, and is located the right-hand member face of right-hand member face connecting block (9).

4. The solar photovoltaic junction box of claim 1, wherein: the height that highly is higher than upper cover (2) of lower cover (1), the surface area of lower cover (1) is the same with the surface area of upper cover (2), the quantity of buckle (3) is totally four, the left and right sides both ends of joint lower cover (1) and upper cover (2) respectively, two buckle (3) above the left end face of lower cover (1) and upper cover (2), two buckle (3) above the right-hand member face of lower cover (1) and upper cover (2).

5. The solar photovoltaic junction box of claim 1, wherein: ventilation hole (4) are 45 degrees angle settings, the terminal surface respectively has three ventilation hole (4) about lower cover (1), three ventilation hole (4) above the terminal surface are symmetrical structure about lower cover (1), the height that highly is less than buckle (3) of baffle (5), the width of baffle (5) is greater than the width of buckle (3), the length of baffle (5) is greater than the length of buckle (3), the quantity of baffle (5) is two, and two baffle (5) are symmetrical type structure.

6. The solar photovoltaic junction box of claim 1, wherein: the surface structures of the connecting rod (11) and the sticky plate (12) are T-shaped structures, and the surface of the sticky plate (12) is the sum of the surface areas of the lower cover (1) and the upper cover (2).