阅读说明：本技术 一种光伏设备用电力箱 (Power box for photovoltaic equipment ) 是由 刘景娟 于 2019-08-22 设计创作，主要内容包括：本发明公开了一种光伏设备用电力箱,其结构包括固定片、接地端子、箱体、断路器、变压器、逆变器等,箱体中安装有断路器、变压器、逆变器,箱体底部安装有接地端子,箱体侧面上下两端分别水平固定有固定片,接地端子由接电结构、并联导电结构组成,接电结构安装在箱体内部底端,接电结构底部结构贯穿箱体底部和并联导电结构机械连接,并联导电结构位于箱体外部,本发明通过并联导电结构的铝板来增加整个接地端子的接地面积,迅速将雷电产生的电流导入地下,避免接地端子电流过载,本发明接电柱和导电柱通过卡圈和套圈增加二者的连接关系,保证电流导电的稳定性。(The invention discloses a power box for photovoltaic equipment, which structurally comprises a fixing piece, a grounding terminal, a box body, a circuit breaker, a transformer, an inverter and the like, wherein the circuit breaker, the transformer and the inverter are arranged in the box body, the grounding terminal is arranged at the bottom of the box body, the fixing piece is horizontally fixed at the upper end and the lower end of the side surface of the box body respectively, the grounding terminal consists of a power connection structure and a parallel conductive structure, the power connection structure is arranged at the bottom end inside the box body, the bottom structure of the power connection structure penetrates through the bottom of the box, the parallel conductive structure is positioned outside the box body, the grounding area of the whole grounding terminal is increased through the aluminum plate of the parallel conductive structure, the current generated by thunder is quickly led into the ground, the current overload of the grounding terminal is avoided, the connection relationship between the electric connecting column and the conductive column is increased through the clamping ring and the ferrule, and the stability of current conduction is ensured.)

1. The utility model provides a power box for photovoltaic equipment which characterized in that: the structure of the transformer comprises a fixing sheet (1), a grounding terminal (2), a box body (3), a circuit breaker, a transformer, an inverter and the like, wherein the circuit breaker, the transformer and the inverter are installed in the box body (3), the grounding terminal (2) is installed at the bottom of the box body (3), and the fixing sheet (1) is horizontally fixed at the upper end and the lower end of the side face of the box body (3) respectively.

2. The power box for photovoltaic equipment according to claim 1, wherein: ground terminal (2) are by connecing electric structure (a), parallelly connected conducting structure (b) to constitute, connect electric structure (a) to install in the inside bottom of box (3), connect electric structure (a) bottom structure to run through box (3) bottom and parallelly connected conducting structure (b) mechanical connection, parallelly connected conducting structure (b) is located box (3) outside connect electric structure (a) including vent (4), rolling ball (5), lead electrical pillar (6), line bank (7), screw locking is passed through at line bank (7) horizontal both ends in box (3) bottom, install two rolling ball (5) in the middle of line bank (7) are positive, and the space between two rolling ball (5) is vent (4), the outside that rolling ball (5) were kept away from in line bank (7) is equipped with and leads electrical pillar (6).

3. A power box for a photovoltaic apparatus according to claim 2, characterized in that: the bottom cover that line row (7) was kept away from in conductive pillar (6) has a lasso (b2), parallelly connected conducting structure (b) is equipped with electric connector (b1), rand (b3), aluminum plate (b4), aluminum plate (b4) are equipped with rand (b3) more than two on the front, rand (b3) and lasso (b2) activity block, rand (b3) inside centre is equipped with electric connector (b1) perpendicularly.

Technical Field

The invention relates to the field of power boxes, in particular to a power box for photovoltaic equipment.

Background

Photovoltaic power generation mainly comprises photovoltaic cell array, the collection flow box, low pressure direct current cabinet, the contravariant cabinet, exchange low-voltage cabinet, step-up transformer, in thunderstorm weather, although there is the installation lightning protection module among the photovoltaic power generation system of family, when the high tension current that produces in the twinkling of an eye of thunderbolt flows through the collection flow box, the collection flow box also is a kind of power box, the ground terminal and the ground floor area of contact of collection flow box are little, the branch road is few, the electric current that single circuit passes through is excessive, take place pitch arc electric current easily and lead to around power device damage, the short circuit.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a photovoltaic is power box for equipment, its structure includes stationary blade, ground terminal, box, circuit breaker, transformer, dc-to-ac converter etc. install circuit breaker, transformer, dc-to-ac converter in the box, ground terminal is installed to the bottom half, both ends are the level respectively and are fixed with the stationary blade about the box side.

As a further optimization of the technical scheme, the grounding terminal is composed of an electricity connection structure and a parallel conductive structure, the electricity connection structure is installed at the bottom end inside the box body, the bottom structure of the electricity connection structure penetrates through the bottom of the box body and is mechanically connected with the parallel conductive structure, and the parallel conductive structure is located outside the box body.

As a further optimization of this technical scheme, connect electric structure and include vent, rolling ball, lead electrical pillar, line row, the horizontal both ends of line row are passed through the screw locking in the bottom half, two rolling balls are installed to the positive centre of line row, and the space between two rolling balls is the vent, the outside that the rolling ball was kept away from to the line row is equipped with leads electrical pillar, it is mutually perpendicular with the line row to lead electrical pillar, the line row with lead electrical pillar mechanical connection.

As a further optimization of the technical scheme, a ferrule is sleeved at the bottom end of the conductive post, which is far away from the wire row, and the ferrule is made of an elastic material.

As the further optimization of this technical scheme, parallelly connected conductive structure is equipped with electrical connector, rand, aluminum plate openly is equipped with the rand more than two, rand and aluminum plate formula structure as an organic whole, rand and lasso activity block, the rand is the loop configuration, the inside centre of rand is equipped with electrical connector perpendicularly, electrical connector and aluminum plate vertical fixation.

As the further optimization of this technical scheme, the aluminum plate bottom is equipped with the mounting hole more than two, the mounting hole is the hemisphere, the positive movable mounting in middle of the mounting hole has spherical electrically conductive ware, spherical electrically conductive ware comprises casing and guide pin, casing and aluminum plate movable mounting, the last guide pin of inserting more than two of shells inner wall, these guide pins are even equidistance and distribute.

As a further optimization of the technical scheme, an isolation plate is arranged in the middle of the aluminum plate, and the isolation plate and the aluminum plate are vertically fixed.

Advantageous effects

Compared with the prior art, the power box for the photovoltaic equipment has the following advantages:

1. The grounding area of the whole grounding terminal is increased by the aluminum plates of the parallel conductive structures, so that the current generated by lightning is quickly led into the ground, and the current overload of the grounding terminal is avoided.

2. The invention increases the connection relationship between the electric connecting column and the electric conducting column through the clamping ring and the ferrule, and ensures the stability of current conduction.

3. The guide pins of the spherical conductor are fully contacted with soil, so that the contact area is increased, at the same time, more than two guide pins shunt concentrated current, the current passing through each guide pin is reduced, and the current overload of a single line is avoided.

4. The isolating plate arranged in the middle of the invention avoids the phenomenon of large-area short circuit caused by the phenomenon of cross flow caused by overlarge current when the electric connecting column and the electric conducting column conduct electricity.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

Fig. 1 is a schematic perspective view of a power box for photovoltaic equipment according to the present invention.

Fig. 2 is a schematic cross-sectional view of the ground terminal of the present invention.

Fig. 3 is a schematic plan view of the spherical conductor of the present invention.

Fig. 4 is a partial perspective view of the aluminum plate of the present invention.

FIG. 5 is a schematic bottom view of an aluminum plate of the present invention.

in the figure: fixing piece 1, grounding terminal 2, box 3, electric connection structure a, parallel connection electric conduction structure b, ventilation opening 4, rolling ball 5, electric conduction column 6, wire row 7, ferrule b2, electric connection column b1, collar b3, aluminum plate b4, mounting hole b7, spherical electric conduction device b5, shell b5-1, guide pin b5-2 and isolation plate b 6.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.