CN217656595U

CN217656595U - Lightweight photovoltaic junction box with built-in modular diodes

Info

Publication number: CN217656595U
Application number: CN202220967400.XU
Authority: CN
Inventors: 李霖; 匡元海; 李义鹏; 袁磊; 汤晨; 徐恒娥
Original assignee: Jiangsu Haitian Microelectronics Corp
Current assignee: Jiangsu Haitian Microelectronics Corp
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-10-25
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses an interior lightweight photovoltaic terminal box of establishing modular diode, including lower end box, upper cover plate and inlet wire seal assembly, the front of lower end box is equipped with two inlet ports, the inner wall upper end of lower end box is fixed with lower sealing rubber circle, the lower surface of upper cover plate is equipped with the upper sealing rubber circle with lower sealing rubber circle looks adaptation, inlet wire seal assembly includes inlet wire pipe and the protective sheath of parcel at the inlet wire pipe outer wall, there is threaded connection pipe one end of inlet wire pipe, the bolt connection pipe links to each other with inlet port soon, the both sides wall of protective sheath all is fixed with the guard plate, the joint has the protection frame between two guard plates, this device simple structure is reliable, inlet wire seal assembly is simple with inlet port's connection method, the connection effect is good, and play sealed effect simultaneously, inlet wire seal assembly's equipment is convenient, moreover, the steam generator is simple in structure, the sealing requirement of terminal box has been satisfied, good radiating effect is realized again, avoid high temperature to lead to photovoltaic module or damage the terminal box.

Description

Lightweight photovoltaic junction box with built-in modular diodes

Technical Field

The utility model relates to an interior lightweight photovoltaic terminal box of establishing modular diode.

Background

The photovoltaic junction box is an indispensable component in a photovoltaic power generation system, and is a key element for normally and outwardly conveying electric energy to a photovoltaic module, the conventional photovoltaic junction box is arranged on the back side of the photovoltaic module and is used for outwardly leading out the leading-out ends of the positive electrode and the negative electrode of the photovoltaic module so as to be electrically connected with the adjacent photovoltaic modules, and then the photovoltaic junction box is connected in series into the whole photovoltaic power generation system, meanwhile, a diode arranged in the photovoltaic module can effectively prevent adverse effects caused by hot spot effect of partial cells.

In addition, in the prior art, two wire fixing devices for fixing the photovoltaic cable led into the junction box are generally connected with the junction box base by threads, so that the whole photovoltaic junction box has poor sealing performance and low wire fixing reliability, and therefore, a lightweight photovoltaic junction box with built-in modular diodes is produced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, and providing a lightweight photovoltaic junction box with built-in modular diodes.

The utility model provides an interior lightweight photovoltaic terminal box of establishing modular diode, includes lower end box, upper cover plate and inlet wire seal assembly, the front of lower end box is equipped with two inlet openings, and the inner wall upper end of lower end box is fixed with lower sealing rubber circle, the lower surface of upper cover plate is equipped with the last sealing rubber circle with lower sealing rubber circle looks adaptation, inlet wire seal assembly includes inlet wire pipe and the protective sheath of parcel at the inlet wire pipe outer wall, and there is threaded connection pipe one end of inlet wire pipe, and bolted connection pipe connects with the inlet opening soon and links to each other, the both sides wall of protective sheath all is fixed with the guard plate, and the joint has the protection frame between two guard plates.

As further improvement, the shape of protection frame is character cut in bas-relief, and the size of the bottom of recess equals the cross-section size of protective sheath, be equipped with a plurality of spacing posts on the inner wall of fender bracket, utilize protection frame and guard plate to protect the protective sheath of whole rubber material, prolonged the life of protective sheath.

As further improvement, the material of protective sheath is the rubber material, and the shape of protective sheath is square, be equipped with a plurality of spacing grooves with spacing post looks adaptation on the protective sheath, insert the spacing inslot respectively with the spacing post of a plurality of, play the effect of fixed connection protection frame and protective sheath, play certain guard action to the protective sheath, prevent the impaired sealed effect of influence of protective sheath in the use, during the installation, threaded connection connects soon to in the inlet wire mouth, the protective sheath has played the effect of sealed protection in the junction of threaded connection pipe and inlet wire mouth, the leakproofness of whole terminal box has been improved.

As further improvement, the upper surface of lower sealing rubber circle is equipped with a plurality of joint groove, the lower surface of going up the sealing rubber circle is equipped with the joint piece of a plurality of and joint groove looks adaptation, utilizes last sealing rubber circle and lower sealing rubber circle looks joint, has both played sealed, spacing effect, has still improved the stability of being connected between upper cover plate and the lower bottom box, when the inside high emergence inflation of heat of terminal box, the sealed effect of upper cover plate and lower bottom box also can not influenced, and joint groove and joint piece can be sealed more fastening when the thermal expansion on the contrary, strengthen sealed effect.

As a further improvement, the shape of the clamping groove is gourd-shaped, so that the sealing performance and the stability between the upper cover plate and the lower bottom box are improved.

As a further improvement, the lower bottom box is fixed on the mounting plate, the lower surface of the mounting plate is provided with a plurality of radiating grooves, when heat in the junction box is difficult to be rapidly dissipated, the direct transmission of the heat to the photovoltaic assembly can be reduced, the influence of the heat energy in the junction box on the photovoltaic assembly is reduced, the service life of the photovoltaic assembly is prolonged, and meanwhile, the defects that the local temperature of the junction box is too high due to the fact that the heat cannot be dissipated timely, and the failure, the separation and the like of a diode in the junction box are caused are avoided.

Has the beneficial effects that:

the device is simple and reliable in structure, the incoming line sealing assembly is simple in connection method with the incoming line port, the connection effect is good, the sealing effect is achieved, the incoming line sealing assembly is convenient to assemble, the structure is simple, the sealing requirement of the junction box is met, the good heat dissipation effect is achieved, and the damage of the photovoltaic assembly or the junction box caused by overhigh temperature is avoided.

This device utilizes upper seal rubber circle and lower seal rubber circle looks joint, has both played sealed, spacing effect, has still improved the stability of being connected between upper cover plate and the lower box of going to the bottom, and when the inside high emergence inflation of heat of terminal box, the sealed effect of upper cover plate and lower box also can not influenced, and joint groove and joint piece can be sealed more fastening when the thermal expansion on the contrary, the sealed effect of reinforcing.

The limiting columns are respectively inserted into the limiting grooves in the device, the effect of fixedly connecting the protective frame and the protective sleeve is achieved, a certain protective effect is achieved on the protective sleeve, the sealing effect is prevented from being affected by damage of the protective sleeve in the using process, during installation, the threaded connecting pipe is screwed into the wire inlet, the protective sleeve achieves the sealing protection effect at the connecting position of the threaded connecting pipe and the wire inlet, and the sealing performance of the whole junction box is improved.

This device is provided with the last sealing rubber circle and the lower sealing rubber circle of special shape, has both played sealed, spacing effect, has still improved the stability of being connected between upper cover plate and the lower bottom box, and when the inside high emergence inflation of heat of terminal box, the sealed effect of upper cover plate and lower bottom box also can not influenced, and the joint groove and joint piece can be sealed more fastening when the thermal expansion on the contrary, reinforcing sealed effect.

This device sets up a plurality of radiating groove on the mounting panel, when the heat in the terminal box will be difficult to dispel fast, can reduce the direct transmission of heat to photovoltaic module on, reduce the influence of the heat energy in the terminal box to photovoltaic module, prolong photovoltaic module's life, thereby avoid the unable timely effluvium of heat to lead to the local high temperature of terminal box simultaneously, arouse that the diode in the terminal box became invalid, breaks away from etc. bad.

Drawings

FIG. 1 is a schematic structural view of a lower back box;

FIG. 2 is a schematic structural view of an upper cover plate;

FIG. 3 is a schematic structural view of an incoming wire seal assembly;

FIG. 4 is a schematic front view of the incoming line seal assembly;

FIG. 5 is a front general structural schematic view of the incoming wire seal assembly;

fig. 6 is a schematic structural view of the protective frame.

1. The wire inlet sealing structure comprises a lower bottom box 2, a wire inlet 3, a lower sealing rubber ring 4, a clamping groove 5, a wire inlet sealing assembly 6, a protection plate 7, a threaded connection pipe 8, a protection sleeve 9, an upper sealing rubber ring 10, a limiting groove 11, a protection frame 12, a wire inlet pipe 13 and an upper cover plate.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

As shown in fig. 1 to 6 as a specific embodiment of the present invention, a lightweight photovoltaic junction box with built-in modular diodes comprises a lower bottom box 1, a wire inlet 2, a lower sealing rubber ring 3, a clamping groove 4, a wire inlet sealing assembly 5, a protection plate 6, a threaded connection pipe 7, a protection sleeve 8, an upper sealing rubber ring 9, a limiting groove 10, a protection frame 11, a wire inlet pipe 12, and an upper cover plate 13.

The utility model provides an interior lightweight photovoltaic terminal box of establishing modular diode, including lower end box 1, upper cover plate 13 and inlet wire seal assembly 5, the front of lower end box 1 is equipped with two inlet wire 2, the inner wall upper end of lower end box 1 is fixed with lower sealing rubber circle 3, the lower surface of upper cover plate 13 is equipped with the last sealing rubber circle 9 with 3 looks adaptations of lower sealing rubber circle, inlet wire seal assembly 5 includes inlet wire pipe 12 and the protective sheath 8 of parcel at inlet wire pipe 12 outer wall, the one end of inlet wire pipe 12 even has threaded connection pipe 7, the bolted connection pipe links to each other with inlet wire 2 swivelling joint, the both sides wall of protective sheath 8 all is fixed with the guard plate, the joint has protection frame 11 between two guard plates.

The shape of protection frame 11 is character cut in bas-relief, and the size of the bottom of recess equals the cross-sectional size of protective sheath 8, is equipped with a plurality of spacing posts on the inner wall of protection frame, utilizes protection frame 11 and guard plate to protect the protective sheath 8 of whole rubber material, has prolonged protective sheath 8's life.

Protective sheath 8's material is the rubber material, protective sheath 8's shape is square, be equipped with a plurality of spacing groove 10 with spacing post looks adaptation on protective sheath 8, insert the spacing inslot 10 respectively with the spacing post of a plurality of, play the effect of fixed connection protection frame 11 and protective sheath 8, play certain guard action to protective sheath 8, prevent that 8 impaired influences of protective sheath are sealed effect in the use, during the installation, threaded connection pipe 7 connects to the incoming line 2 soon, protective sheath 8 has played sealed protection's effect in threaded connection pipe 7 and the junction of incoming line 2, the leakproofness of whole terminal box has been improved.

The upper surface that lower sealing rubber enclosed 3 is equipped with a plurality of joint groove 4, the lower surface that goes up sealing rubber circle 9 is equipped with the joint piece of a plurality of and 4 looks adaptations in joint groove, utilize upper sealing

rubber circle

9 and 3 looks joints of lower sealing rubber circle, both played sealedly, spacing effect, the stability of being connected between upper cover plate 13 and the lower bottom box 1 has still been improved, when the inside high emergence inflation of heat of terminal box, upper cover plate 13 also can not influenced with the sealed effect of lower bottom box 1, the more fastening that can seal up of joint groove 4 and joint piece when the thermal expansion on the contrary, strengthen sealed effect.

The shape of the clamping groove 4 is gourd-shaped, so that the sealing performance and the stability between the upper cover plate 13 and the lower bottom box 1 are improved.

Lower end box 1 is fixed on the mounting panel, and the lower surface of mounting panel is equipped with a plurality of radiating groove, and when the heat in the terminal box will be difficult to dispel fast, can reduce the direct transmission of heat to photovoltaic module on, reduce the influence of the heat energy in the terminal box to photovoltaic module, extension photovoltaic module's life, thereby avoid the heat can't in time effluvium in the while to lead to the local high temperature of terminal box, arouse that the diode in the terminal box became invalid, break away from etc. bad.

During the use, install diode and other work subassemblies in the inside of pushing down the box, cover the upper cover plate, the last sealing rubber circle of upper cover plate lower surface and the lower rubber seal looks joint on the box of pushing down, thereby guarantee the leakproofness between upper cover and the box of pushing down, the work subassembly of box inside of pushing down passes inlet wire and inlet wire sealing assembly through the photovoltaic cable and links to each other with other working part, inlet wire sealing assembly connects with the inlet wire mouth soon and links to each other, inlet wire sealing assembly's special construction has played sealed effect to the junction of inlet wire mouth.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 an interior lightweight photovoltaic terminal box of establishing modular diode, its characterized in that, includes lower end box, upper cover plate and inlet wire seal assembly, the front of lower end box is equipped with two inlet ports, and the inner wall upper end of lower end box is fixed with lower sealing rubber circle, the lower surface of upper cover plate is equipped with the last sealing rubber circle with lower sealing rubber circle looks adaptation, inlet wire seal assembly includes inlet wire pipe and the protective sheath of parcel at the inlet wire outside of tubes wall, and the one end of inlet wire pipe even has threaded connection pipe, and the bolted connection pipe links to each other with inlet port revolves, the both sides wall of protective sheath all is fixed with the guard plate, and the joint has the protection frame between two guard plates.

2. A lightweight pv junction box with built-in modular diodes as in claim 1, wherein the protective frame is in the shape of a recessed shape, the bottom of the recess is equal to the cross-section of the protective sheath, and the inner wall of the protective frame is provided with a plurality of limiting posts.

3. A lightweight photovoltaic junction box with a built-in modular diode as claimed in any one of claims 1 or 2, wherein the protective sleeve is made of rubber, the protective sleeve is square, and the protective sleeve is provided with a plurality of limiting grooves adapted to the limiting posts.

4. A lightweight photovoltaic junction box with a built-in modular diode as claimed in claim 1, wherein the upper surface of the lower sealing rubber ring is provided with a plurality of clamping grooves, and the lower surface of the upper sealing rubber ring is provided with a plurality of clamping blocks matched with the clamping grooves.

5. A lightweight photovoltaic junction box with built-in modular diodes as claimed in claim 4, wherein said snap-in groove is gourd-shaped.

6. A lightweight photovoltaic junction box with built-in modular diodes as claimed in claim 1 wherein said lower bottom box is fixed to a mounting plate, the lower surface of which is provided with a plurality of heat dissipating grooves.