CN209860869U

CN209860869U - High-sealing junction box of crystalline silicon solar photovoltaic module

Info

Publication number: CN209860869U
Application number: CN201920667270.6U
Authority: CN
Inventors: 方宁; 李雄; 李�瑞; 邓子群
Original assignee: Jiangsu Santaicheng Energy Technology Co Ltd
Current assignee: Jiangsu Santaicheng Energy Technology Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2019-12-27
Anticipated expiration: 2029-05-10

Abstract

The high-sealing junction box of the crystalline silicon solar photovoltaic module mainly comprises a box body and a box cover matched with the box body; the box body is cylindrical, the top of the box body is provided with an opening, the bottom of the box body is provided with a boss, a left groove is formed on the left side of the boss, and a right groove is formed on the right side of the boss; the left groove and the right groove are both provided with through wire holes; a through hole wall is arranged around the through hole, a sealing plug is arranged in the through hole wall, and a threading hole is arranged on the sealing plug; the side wall of the box body is provided with a cable joint; by threaded connection between box body and the lid, this terminal box structural design science, the leakproofness is good, good heat dissipation, need not encapsulating.

Description

High-sealing junction box of crystalline silicon solar photovoltaic module

Technical Field

The utility model relates to a solar PV modules annex production field especially relates to high sealed terminal box of crystalline silicon solar energy photovoltaic module.

Background

The connecting device of the photovoltaic module junction box between the solar cell matrix formed by the solar cell module and the solar charging control device 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 cable connector generally comprises a box body, a cable and a connector, wherein the box body comprises: the box bottom (containing copper wiring terminal or plastic wiring terminal), the box cover and the diode, wherein the junction box works outdoors and is subject to the influence of severe weather, so that the requirement on the sealing property of the junction box is high.

Chinese patent CN207409971U discloses a waterproof sealing junction box, which has good waterproof sealing performance but cannot be directly used as a junction box of a photovoltaic module, and CN103633931A discloses a junction box for a photovoltaic module, which needs to be encapsulated by glue.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a structural design science, the leakproofness is good, good heat dissipation, the high sealing terminal box of crystalline silicon solar energy photovoltaic module that need not the encapsulating encapsulation.

For realizing the utility model provides the following technical scheme:

the high-sealing junction box of the crystalline silicon solar photovoltaic module mainly comprises a box body and a box cover matched with the box body; the box body is cylindrical, the top of the box body is provided with an opening, the bottom of the box body is provided with a boss, a left groove is formed on the left side of the boss, and a right groove is formed on the right side of the boss; the left groove and the right groove are both provided with through wire holes; a through hole wall is arranged around the through hole, a sealing plug is arranged in the through hole wall, and a threading hole is arranged on the sealing plug; the side wall of the box body is provided with a cable joint; the box body is connected with the box cover through threads.

Furthermore, a sealing ring is arranged between the box body and the box cover, and a rotary handle is arranged on the side edge of the box cover.

Further, the height of the threading hole wall is slightly lower than that of the boss.

Further, set up the binding post module on the boss, still coating heat dissipation silica gel between binding post module and the boss.

Furthermore, the outer bottom surface of the boss is also provided with a sawtooth-shaped heat dissipation groove.

Furthermore, the bottom of the box body is adhered to the solar cell module back plate through a sealant, and a ventilation channel is formed between the lower part of the boss and the solar cell module back plate.

The utility model discloses an useful part:

firstly, the method comprises the following steps: the opening of the whole junction box is sealed by a box cover, the bottom of the junction box is connected with a solar cell module back plate in a sealing mode by sealant, and the sealing performance in the box body is good;

secondly, the method comprises the following steps: the lug boss is arranged in the box body, an air channel is formed between the lower part of the lug boss and the back plate of the solar cell module, the outer bottom surface of the lug boss is also provided with the sawtooth-shaped heat dissipation groove, and heat dissipation silica gel is coated between the wiring terminal module and the lug boss, so that the good ventilation and heat dissipation effects of the wiring box are ensured;

thirdly, the method comprises the following steps: the through hole wall is arranged around the through hole, the sealing plug is arranged in the through hole wall, the through hole is formed in the sealing plug, and the wiring on the solar cell module passes through the through hole and then is connected with the wiring terminal module.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a bottom view of the present invention.

In the figure: 100 is a box body, 110 is a boss, 111 is a heat dissipation groove, 120 is a left groove, 130 is a right groove, 140 is a through hole, 141 is a through hole wall, 142 is a sealing plug, 143 is a threading hole, 150 is a cable joint, 200 is a box cover, 210 is a rotary handle, 300 is a connecting terminal module, 400 is heat dissipation silica gel, 500 is an air duct, 600 is a solar cell module back plate, and 700 is sealant.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the 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.

The high-sealing junction box of the crystalline silicon solar photovoltaic module mainly comprises a box body 100 and a box cover 200 matched with the box body; the box body 100 is cylindrical, the top of the box body 100 is provided with an opening, the bottom of the box body 100 is provided with a boss 110, the left side of the boss 110 is provided with a left groove 120, and the right side of the boss 110 is provided with a right groove 130; the left groove 120 and the right groove 130 are both provided with a through hole 140; a through hole wall 141 is arranged around the through hole 140, a sealing plug 142 is arranged in the through hole wall 141, and a threading hole 143 is arranged on the sealing plug 142; the side wall of the box body 100 is provided with a cable connector 150; by threaded connection between box body 100 and the lid 200, still set up the sealing washer between box body 100 and the lid 200, the side of lid 200 still sets up the swing handle 210, the height that highly is less than boss 110 of threading pore wall 141, set up binding post module 300 on the boss 110, still coating heat dissipation silica gel 400 between binding post module 300 and the boss 110, the outer bottom surface of boss 110 still sets up cockscomb structure radiating groove 111, on box body 100 bottom is by sealed glue 700 adhesion and solar module backplate 600, form ventiduct 500 between boss 110 below and the solar module backplate 600.

The terminal module 300 mainly includes terminals for connecting the positive and negative terminals of the solar cell module, diodes and connecting terminals for connecting the cable connector 150, and the terminal module 300 is a common connecting module in the market and is not further described herein.

Connecting the connecting line of the positive and negative ends of the solar cell module with the connecting terminal module 300 after passing through the threading hole 143, plugging the sealing plug 142 into the through hole wall 141, connecting the connecting terminal module 300 with the cable connector 150, screwing the box cover 200 and the box body 100 for sealing, and then coating the sealant 700 on the bottom of the box body 100 and adhering the bottom of the box body to the solar cell module back plate 600.

The present invention is not limited to the crystalline silicon solar photovoltaic module high-sealing junction box according to the above embodiments, and those skilled in the art can make various changes according to the above embodiments, but any changes equivalent or similar to the present invention are intended to be covered by the scope of the present invention.

Claims

1. The high-sealing junction box of the crystalline silicon solar photovoltaic module mainly comprises a box body and a box cover matched with the box body; the method is characterized in that: the box body is cylindrical, the top of the box body is provided with an opening, the bottom of the box body is provided with a boss, a left groove is formed on the left side of the boss, and a right groove is formed on the right side of the boss; the left groove and the right groove are both provided with through wire holes; a through hole wall is arranged around the through hole, a sealing plug is arranged in the through hole wall, and a threading hole is arranged on the sealing plug; the side wall of the box body is provided with a cable joint; the box body is connected with the box cover through threads.

2. The crystalline silicon solar photovoltaic module high-sealing junction box of claim 1, wherein: a sealing ring is further arranged between the box body and the box cover, and a rotary handle is further arranged on the side edge of the box cover.

3. The crystalline silicon solar photovoltaic module high-sealing junction box of claim 1, wherein: the height of the threading hole wall is slightly lower than that of the lug boss.

4. The crystalline silicon solar photovoltaic module high-sealing junction box of claim 1 or 3, wherein: set up the binding post module on the boss, still coating heat dissipation silica gel between binding post module and the boss.

5. The crystalline silicon solar photovoltaic module high-sealing junction box of claim 1, wherein: the outer bottom surface of the boss is also provided with a serrated heat dissipation groove.

6. The crystalline silicon solar photovoltaic module high-sealing junction box of claim 1, wherein: the bottom of the box body is adhered to the solar cell module back plate through a sealant, and an air duct is formed between the lower part of the boss and the solar cell module back plate.