CN211046864U

CN211046864U - Photovoltaic cell panel junction box

Info

Publication number: CN211046864U
Application number: CN201922030693.XU
Authority: CN
Inventors: 胡宏梅
Original assignee: Shanxi Zhongke Anrui Energy Technology Co ltd
Current assignee: Shanxi Zhongke Anrui Energy Technology Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-17
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a photovoltaic cell board terminal box belongs to the photovoltaic technology field, including terminal box body and radiator unit, the radiator unit embeds installs in the inside of terminal box body, place the outer box of the wiring in the box in the wiring inside, connecting element fixed mounting is in the inside of the inner box of the wiring, the terminal link up fixed connection and installs in the one side of the outer box of the wiring and the outer box of the wiring, sealed hinge mount is in the top one side of the outer box of the wiring and articulated connection top cap, inner cap fixed mounting is in the inboard bottom surface of top cap, the inboard edge inner circle of top cap including the fixed setting of. Through setting up the interior box of fin and wiring in the device, through sealing up the interior box of wiring to set up the fin and connect inside electronic component, can directly conduct the fin again through the fin and distribute to the surrounding air in when making inside electronic component produce heat and go, guarantee that inside dry seal does not receive the corruption, be applicable to the production and the use of photovoltaic cell board terminal box.

Description

Photovoltaic cell panel junction box

Technical Field

The utility model relates to the field of photovoltaic technology, specifically a battery terminal box.

Background

Solar energy is an inexhaustible green energy, is vital to solving the problem of energy shortage and the problem of environmental pollution of human beings, and with the development of science and technology, the photovoltaic power generation technology makes great progress, and a batch of photovoltaic power plants with economic benefit and profitability are established one after another, which puts higher technical requirements on relevant parts such as photovoltaic junction boxes, connectors, cables and the like. The solar photoelectric conversion device is generally arranged in remote field and high altitude, and the maintenance of parts is troublesome if the parts are required to be replaced. Therefore, selecting high-quality photovoltaic junction boxes and other parts is an effective means for avoiding high maintenance and repair cost. The service life of the photovoltaic junction box generally requires 25 years, the good and bad sealing performance is an important technical index, and under the severe weather conditions of high-altitude storms, yellow sand and dust and the like in desert, the internal metal parts in the photovoltaic junction box can not be corroded only by keeping the high sealing performance of the photovoltaic junction box. Generally, the battery matrix is exposed to the outside along with the battery matrix, and the battery matrix is subjected to various environmental changes, so that the junction box is easy to damage. In addition, the electronic components inside the junction box can generate heat during working, so that the temperature inside the junction box is too high, and the inside and the outside of the junction box can generate great pressure difference, so that the electronic components inside the junction box are easily damaged. Therefore, the photovoltaic cell panel junction box needs to be upgraded and transformed on the basis of the existing cell panel junction box device so as to overcome the existing problems and defects and provide the photovoltaic cell panel junction box.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at in solving the inside electronic component of current terminal box and can produce the heat at the during operation, lead to the inside high temperature of terminal box, and can produce very big pressure differential inside and outside the terminal box for electronic component in the terminal box receives the technical problem of damage easily.

In order to achieve the above object, the utility model provides a following technical scheme: a photovoltaic cell panel junction box comprises a junction box body and a heat dissipation assembly, wherein the heat dissipation assembly is internally arranged in the junction box body;

the terminal box body comprises an outer wiring box, an inner wiring box, a connecting element, a terminal, a lower buckle, a sealing hinge, an upper buckle, a top cover, an inner top cover and a sealing rubber ring, wherein the inner wiring box is arranged inside the outer wiring box;

the heat dissipation assembly comprises a cavity, a heat dissipation fin, a breathable waterproof membrane, a ventilation opening and a connecting column, the cavity is arranged between the wiring inner box and the wiring outer box, the heat dissipation fin is embedded into the box body of the wiring inner box, the breathable waterproof membrane is laid on the surface of the inner top cover, the ventilation opening is arranged on the side face of the wiring outer box body, and the connecting column is fixed on the surface around the inner top cover of the top cover bottom surface internal connection.

As a further aspect of the present invention: the center of the inner top cover is provided with a hollow-out opening, and a breathable waterproof film is laid at the hollow-out opening.

As a further aspect of the present invention: the radiating fin is embedded into a box body of the inner wiring box and contacts with the internal connecting element, and the embedded part of the radiating fin is sealed by pouring sealant.

As a further aspect of the present invention: the cavity is in a square shape, the inner side of the cavity is wide in one side and narrow in three sides, and the radiating fins are arranged on one wide side.

As a further aspect of the present invention: the ventilation openings are formed in the surfaces of the wiring outer boxes on the two sides of the radiating fin.

As a further aspect of the present invention: the connecting column is arranged at the four corners of the inner top cover and connected with the top cover.

As a further aspect of the present invention: the height of the connecting column is 1-1.5 cm.

The utility model has the advantages that:

1. the utility model discloses in set up the fin, because fin embedding installation sets up the box body of box in the wiring and contact internal connection component, fin embedding installation department adopts the casting glue sealed, and the contact surface contact connecting element of fin makes the heat that connecting element sent conduct the fin more effectively, gives off through the fin again and goes in the surrounding air, can play effectual radiating effect to adopt the casting glue sealed inside the box to play sealed protection in the butt joint line.

2. This kind of photovoltaic cell board terminal box's advantage lies in being provided with ventilative waterproof membrane, because the center department of inner roof is provided with fretwork form opening to ventilative waterproof membrane has been laid to the fretwork opening part, ventilative waterproof membrane blocks external dust steam under ventilation cooling's the condition, makes 3 inside keeping dryings of box in the wiring.

3. This kind of photovoltaic cell board terminal box is provided with the vent, sets up the vent at the outer box surface of both sides wiring of fin, and the vent that bilateral symmetry set up can carry out the convection current ventilation for the flow speed of air accelerates, makes the faster effluvium of inside heat, and the radiating effect is better.

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 the internal structure of the present invention.

Fig. 2 is a schematic diagram of the top cover structure of the present invention.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a schematic view of the internal sealing structure of the present invention.

In FIGS. 1-4: 1-external wiring box, 2-cavity, 3-internal wiring box, 4-connecting element, 5-terminal, 6-lower buckle, 7-heat sink, 8-sealing hinge, 9-upper buckle, 10-top cover, 11-internal top cover, 12-breathable waterproof membrane, 13-vent, 14-sealing rubber ring and 15-connecting column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a photovoltaic cell panel junction box includes a junction box body and a heat dissipation assembly, wherein the heat dissipation assembly is internally installed inside the junction box body;

the junction box body comprises a wiring outer box 1, a wiring inner box 3, a connecting element 4, a terminal 5, a lower buckle 6, a sealing hinge 8, an upper buckle 9, a top cover 10, an inner top cover 11 and a sealing rubber ring 14, wherein the wiring inner box 3 is arranged in the wiring outer box 1, the connecting element 4 is fixedly arranged in the wiring inner box 3, the terminal 5 is fixedly connected and arranged on one side of the wiring inner box 3 and one side of the wiring outer box 1 in a penetrating way, the lower buckle 6 and the upper buckle 9 are respectively and fixedly arranged at the edges of the wiring outer box 1 and the top cover 10, the sealing hinge 8 is arranged on one side of the top end of the wiring outer box 1 and is hinged with the top cover 10, the inner top cover 11 is fixedly arranged at the inner side bottom surface of the top cover 10, and the sealing;

the heat dissipation component comprises a cavity 2, a heat dissipation fin 7, a breathable waterproof membrane 12, a vent 13 and a connecting column 15, wherein the cavity 2 is arranged between the wiring inner box 3 and the wiring outer box 1, the heat dissipation fin 7 is embedded in and arranged in a box body of the wiring inner box 3, the heat dissipation fin 7 is embedded in and arranged in the box body of the wiring inner box 3 and is contacted with the internal connecting element 4, the embedded installation position of the heat dissipation fin 7 is sealed by pouring sealant, the contact surface of the heat dissipation fin 7 is contacted with the connecting element 4, so that heat emitted by the connecting element 4 is more effectively conducted to the heat dissipation fin 7 and then is dissipated to the ambient air through the heat dissipation fin 7, an effective heat dissipation effect can be achieved, the inside of the wiring inner box 3 is sealed and protected by the pouring sealant, the breathable waterproof membrane 12 is laid on the surface of the inner top cover 11, the vent 13 is arranged on the side surface of, the vent 13 that bilateral symmetry set up can carry out convection ventilation for the flow rate of air accelerates, make the faster effluvium of inside heat, the radiating effect is better, because the center department of inside top cap 11 is provided with fretwork form opening, and ventilative waterproof membrane 12 has been laid to the fretwork opening part, ventilative waterproof membrane 12 blocks external dust steam under ventilation cooling's the condition, make 3 inside keeping dryness of box in the wiring, spliced pole 15 is fixed in top cap 10 bottom surface internal connection inside top cap 11 surface all around.

Wherein, the center department of inner top cover 11 is provided with fretwork form opening to ventilative water proof membrane 12 has been laid to the fretwork opening part, and ventilative water proof membrane 12 blocks external dust steam under ventilation cooling's the condition, makes 3 inside keeping dryly of box in the wiring.

The radiating fins 7 are arranged in the box body of the wiring inner box 3 in an embedded mode and are in contact with the internal connecting elements 4, the embedded installation positions of the radiating fins 7 are sealed by pouring sealant, an effective radiating effect can be achieved, and the pouring sealant is used for sealing and protecting the inside of the wiring inner box 3.

Wherein, the cavity 2 is arranged in a square shape, the inner side is arranged to be wide at one side and narrow at three sides, and the radiating fins 7 are arranged at one side of the width.

Wherein, the ventilation openings 13 are arranged on the surfaces of the outer boxes 1 of the two sides of the heat sink 7, and the ventilation openings 13 symmetrically arranged on the two sides can perform convection ventilation, so that the heat inside can be dissipated more quickly.

Wherein, the connecting column 15 is installed and connected with the top cover 10 at the four corners of the inner top cover 11.

The height of the connecting column 15 is 1-1.5cm, so that after external flowing air enters, the vacant height of the connecting column 15 can effectively perform auxiliary heat dissipation on the inside.

The working principle is as follows:

firstly, when in use, the external connection box 1 is connected with the photovoltaic cell device through the terminal 5 and the connecting element 4 by a cable to start working, the top cover 10 is turned over by the sealing hinge 8 to cover the top of the external connection box 1, then the upper buckle 9 and the lower buckle 6 are buckled with each other, so that the external connection box 1 is tightly and fixedly connected with the top cover 10, the internal top cover 11 is fixedly installed and connected with the inner bottom surface of the top cover 10 by the connecting post 15, the top cover 10 is connected with the external connection box 1 and buckled, the internal top cover 11 covers the top end of the internal connection box 3, and is sealed with the box body edge of the internal connection box 3 by the sealing rubber ring 14, the contact surface of the radiating fin 7 is in contact with the connecting element 4, so that the heat emitted by the connecting element 4 is more effectively conducted to the radiating fin 7 and then is radiated to the surrounding air by the radiating fin, the box body surface of the external, make outside flowing air can enter into cavity 2 from vent 13, take out the hot-air that fin 7 dispels at the flow of air, play ventilation cooling's effect to interior top cap 11 middle department is provided with ventilative waterproof membrane 12, and flowing air also can play supplementary heat dissipation to connecting element 4 through ventilative waterproof membrane 12, blocks external dust steam under ventilation cooling's the circumstances moreover, makes box 3 inside keep dry in the wiring.

Claims

1. A photovoltaic cell panel junction box comprises a junction box body and a heat dissipation assembly, wherein the heat dissipation assembly is internally arranged in the junction box body;

the method is characterized in that: the junction box body comprises a junction outer box (1), a junction inner box (3), a connecting element (4), a terminal (5), a lower buckle (6), a sealing hinge (8), an upper buckle (9), a top cover (10), an inner top cover (11) and a sealing rubber ring (14), the wiring inner box (3) is arranged in the wiring outer box (1), the connecting element (4) is fixedly arranged in the wiring inner box (3), the terminal (5) penetrates through the wiring inner box (3) and is fixedly connected with one side of the wiring outer box (1), the lower buckle (6) and the upper buckle (9) are respectively and fixedly arranged at the edges of the wiring outer box (1) and the top cover (10), the sealing hinge (8) is arranged at one side of the top end of the wiring outer box (1) and is hinged with the top cover (10), the inner top cover (11) is fixedly arranged at the inner side bottom surface of the top cover (10), and the sealing rubber ring (14) is fixedly arranged at the inner side edge inner ring of the inner top cover (11);

the heat dissipation assembly comprises a cavity (2), a heat dissipation fin (7), a breathable waterproof membrane (12), a ventilation opening (13) and a connecting column (15), the cavity (2) is arranged between an inner box (3) and an outer box (1) of the wiring, the heat dissipation fin (7) is embedded into the box body of the inner box (3) of the wiring, the surface of the inner top cover (11) is paved with the breathable waterproof membrane (12), the side surface of the outer box (1) of the wiring is opened in the ventilation opening (13), and the connecting column (15) is fixed on the surface of the periphery of the inner top cover (11) of the bottom surface internal connection of the top cover (10).

2. The photovoltaic panel junction box of claim 1, wherein: the center of the inner top cover (11) is provided with a hollow-out opening, and a breathable waterproof film (12) is laid at the hollow-out opening.

3. The photovoltaic panel junction box of claim 1, wherein: the radiating fins (7) are arranged in the box body of the inner wiring box (3) in an embedded mode and are in contact with the internal connecting elements (4), and the embedded installation positions of the radiating fins (7) are sealed through pouring sealant.

4. The photovoltaic panel junction box of claim 1, wherein: the cavity (2) is arranged in a square shape, the inner side of the cavity is arranged to be wide at one side and narrow at three sides, and the radiating fins (7) are arranged on one wide side.

5. The photovoltaic panel junction box of claim 1, wherein: the ventilation openings (13) are formed in the surfaces of the wiring outer boxes (1) on the two sides of the radiating fins (7).

6. The photovoltaic panel junction box of claim 1, wherein: the connecting column (15) is installed and connected with the top cover (10) at the four corners of the inner top cover (11).

7. The photovoltaic panel junction box of claim 1, wherein: the height of the connecting column (15) is 1-1.5 cm.