CN201947202U - Front maintaining device for a solar controller - Google Patents

Abstract

The utility model discloses a front maintaining device for a solar controller. The solar controller is arranged in a box; a box door is arranged on the front surface of the box; and cables of the solar controller are connected to external equipment from the box door opening side. The cables can be connected by the user in the front of the box, and some devices needing to be replaced can be maintained and replaced in the front of the box, thus the use cost of the user is reduced, and the use convenience is improved.

Description

A solar controller front maintenance device

technical field

The utility model relates to the technical field of communication equipment, in particular to a front maintenance device for a solar controller.

Background technique

The solar power supply system consists of a solar cell array composed of solar cell components, a solar controller, an inverter, and a battery pack. The solar cell phalanx converts sunlight energy into electrical energy during sunny days, supplies power to various electrical facilities, and charges the battery pack at the same time; when there is no light, the battery pack supplies power to the load. A solar cell is a semiconductor device that can directly convert the sun's light energy into electrical energy. In recent years, in the communication field, the solar power supply system is gradually replacing the traditional power supply equipment, and has been more and more widely used.

The solar controller is the control center that connects the solar cell phalanx, various electric facilities and battery packs. Through the adjustment and distribution of input and output power, various control functions for photovoltaic input are realized. According to the change trend of the terminal voltage of the battery pack, the multi-channel solar cell square array is automatically controlled to be connected or disconnected. It is necessary to make full use of solar energy resources and ensure the safe and reliable operation of the battery pack.

There are two application environments for solar controllers. One is to embed in an outdoor cabinet, which requires a rear door for rear wiring, so it cannot be installed against the wall, and it reduces the strength of the cabinet and increases the cost. The other is to embed it in an indoor cabinet for work. When used indoors, a maintenance space at the rear needs to be reserved, which will occupy more space in the computer room, and it is inconvenient to maintain when the equipment fails.

Utility model content

The technical problem to be solved by the utility model is to provide a front maintenance device for a solar controller, which facilitates maintenance of the solar controller from the front and reduces operating costs. .

The technical solution adopted by the utility model is that the front maintenance device of the solar controller, the solar controller is located in a box, and a box door is provided on the front of the box, and the cables of the solar controller pass through a box door to open and close. side to connect to external devices.

Further, the front half of the box is divided into upper and lower layers by the engineering cable management frame, a beam is set in the second half of the box, the box door is fixed on one side of the front of the box through the door shaft, and the other side of the front of the box is With outlet posts.

Further, the solar controller includes: a monitoring module, a single-board control module, a battery input module, a DC output module, a photovoltaic input control module, a photovoltaic conversion module, a DC contact module, an AC mutual induction module, a lightning protection module and a fan module, in,

The battery input module, DC output module, photovoltaic input control module and single-board control module are located in the upper layer of the box in sequence;

The single-board control module is connected with the monitoring module installed on the cabinet door through cables;

The photovoltaic conversion module is located in the lower layer of the box, and is connected to the photovoltaic input control module in the upper layer of the box through cables passing through the engineering cable management frame;

The fan module is arranged on the side of the photovoltaic conversion module close to the door shaft;

The lightning protection module is located under and connected to the photovoltaic conversion module.

Further, the photovoltaic input control module is respectively connected to the DC output module and the battery input module through cables, the DC output module outputs electric energy to the corresponding external equipment through the cable on the outlet column, and the battery input module passes the wire on the outlet column. The cable outputs electrical energy to an external battery.

Further, the monitoring module includes a monitoring and processing module located below the inner side of the cabinet door, a liquid crystal screen and a control key board located outside the cabinet door.

Further, bus bars are also provided on the beams in the box;

The DC contact module and the AC mutual inductance module are located above the beam in the cabinet, and are connected to the monitoring and processing module through cables on the busbar.

Further, the fan module includes a fan mounted on the fan track and a wind guide cover for guiding wind into the photovoltaic conversion module.

Further, the bottom of the box is also provided with copper bars, and the lower side of the box is provided with vertically arranged working ground bars;

The lightning protection module is grounded through a copper bar, and the DC output module, photovoltaic input control module, and single-board control module are grounded through a working ground bar respectively.

Further, the working places are arranged in a Z-shaped three-layer structure.

By adopting the above-mentioned technical scheme, the utility model has at least the following advantages:

In the solar controller front maintenance device of the utility model, the solar controller is located in a box, and a box door is provided on the front of the box, and the cables of the solar controller are connected to external equipment through the opening and closing side of the box door. The user can complete the wiring by operating in front of the cabinet, and some components that need to be replaced can also be maintained and replaced at the front, which reduces the cost of the user and improves the convenience of use.

Description of drawings

Fig. 1 is a schematic diagram of the closing state of the front maintenance device of the solar controller described in the present invention;

Fig. 2 is a schematic diagram of the opening state of the front maintenance device of the solar controller according to the utility model;

Fig. 3 is a rear perspective view of the front maintenance device of the solar controller of the present invention.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose, the technical solutions of the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

As shown in Figure 1, the solar controller front maintenance device described in the utility model, the solar controller is located in a box body 102, and a box body door 101 is provided on the front of the box body, and the cables of the solar controller are all opened through the box body door. The combined side is connected to an external device.

As shown in Figure 2 and Figure 3, the solar controller includes: a monitoring and processing module 211, a single board control module 204, a battery input module 201, a DC output module 202, a photovoltaic input control module 203, a photovoltaic conversion module 212, and a DC contact module 305 , AC mutual sensing module 303 , lightning protection module 207 and fan module 210 . The box body door 101 is installed on the box body 102 through the door shaft, and the box body door 101 can be opened and closed freely when maintenance is required. The monitoring and processing module 211 is arranged on the box body door 101, and the single-board control module 204 in the box body is connected through cables. connected, and output monitoring instructions to the single-board control module 204 through the internal interface. The monitoring and processing module 211 implements operation control through the liquid crystal screen outside the cabinet door 101 and the control key board 103 .

The inner space of the cabinet 102 is divided into upper and lower layers by the engineering cable management frame 208 located in the front half. The battery input module 201, the DC output module 202, the photovoltaic input control module 203, and the single-board control module 204 are arranged in sequence from left to right. On the upper layer, the working row 206, the photovoltaic conversion module 212, the lightning protection module 207, and the fan module 210 are all arranged on the lower layer, and the engineering cable management rack 208 also plays the role of cable management, for example: the photovoltaic conversion module 212 located in the lower layer of the cabinet It is connected to the photovoltaic input control module 203 on the upper layer in the box through cables passing through the engineering cable management frame. The working ground row 206 is specifically located on the left side of the lower layer in the box body, and is a vertically arranged Z-shaped three-layer structure. The DC output module 202, the photovoltaic input control module 203, and the single-board control module 204 are respectively grounded through the working ground bar 206,

The leftmost side of the box body 102 is the outlet, and the battery input module 201 and the DC output module 202 are effectively separated by several outlet posts 205, which facilitates the distinction and management of different cables and prevents maintenance errors. Specifically, the photovoltaic input control module 203 is respectively connected to the DC output module 202 and the battery input module 201 through cables, the DC output module 202 outputs electric energy to supply power to corresponding external devices through the cables on the outlet post 205, and the battery input module 201 passes through The cable on the outlet post outputs electric energy to charge the external storage battery.

The lightning protection module 207 is located below and connected to the photovoltaic conversion module 212 . The bottom of the lightning protection module 207 is short-circuited with the nearest box ground through the copper bar 209, which saves the space required at the bottom of the box and improves the reliability of lightning protection.

The fan module 210 for dissipating heat from the photovoltaic conversion module 212 is arranged on the far right of the lower layer of the box body 102, and includes a fan, a fan rail 301 and an air guide 302. The air guide 302 is used for introducing wind into the photovoltaic conversion module. The fan is assembled on the fan rail 301, and can be maintained by plugging and unplugging front and rear, which improves the convenience of fan maintenance. The fan rail 301, the air guide cover 302 and the photovoltaic conversion module 212 form a closed air duct, which improves the heat dissipation efficiency and the service life of the equipment.

The AC transformer 303 and DC contactor 305 that do not require maintenance in the solar controller are placed on the beam 304 in the second half of the box, and are connected to the monitoring and processing module 211 through the cables on the bus bar 306 on the beam 304, which can The work of the AC transformer 303 and the DC contactor 305 is controlled by an external control device. Such a design layout improves the convenience of wiring and production efficiency, reduces the assembly time of the whole machine, and saves costs.

Compared with the prior art, the main advantages of the solar controller front maintenance device described in the present invention are as follows:

1. On the premise of not increasing the cost and volume, and not affecting the stability of the system, the front maintenance function can be realized, which saves the maintenance cost of the system and improves the stability and usability range of the system.

2. The applicable environment is wider, which saves space and saves the cost of use.

3. It can easily realize the expansion of the system, provide more channels of input and output, and have high flexibility

Through the description of the specific implementation, it should be possible to gain a deeper and more specific understanding of the technical means and effects of the utility model to achieve the intended purpose. new restrictions.

Claims (9)

1. A front maintenance device for a solar controller, the solar controller is located in a box, the front of the box is provided with a box door, and the cables of the solar controller are connected to external equipment through the opening and closing side of the box door. 2. The front maintenance device of the solar controller according to claim 1, wherein the front half of the box body is divided into upper and lower layers by an engineering wire management frame, a beam is arranged at the back half of the box body, and the box body door passes through the door shaft It is fixed on one side of the front of the box, and the other side of the front of the box is provided with an outlet post. 3. The solar controller front maintenance device according to claim 2, wherein the solar controller comprises: a monitoring module, a single board control module, a battery input module, a DC output module, a photovoltaic input control module, and a photovoltaic conversion module , DC contact module, AC mutual induction module, lightning protection module and fan module, among which, The battery input module, DC output module, photovoltaic input control module and single-board control module are located in the upper layer of the box in sequence; The single-board control module is connected with the monitoring module installed on the cabinet door through cables; The photovoltaic conversion module is located in the lower layer of the box, and is connected to the photovoltaic input control module in the upper layer of the box through cables passing through the engineering cable management frame; The fan module is arranged on the side of the photovoltaic conversion module close to the door shaft; The lightning protection module is located under and connected to the photovoltaic conversion module. 4. The front maintenance device of solar controller according to claim 3, characterized in that, the photovoltaic input control module is respectively connected to the DC output module and the battery input module through cables, and the DC output module outputs through the cables on the outlet column The power is supplied to the corresponding external equipment, and the battery input control module outputs power to the external battery through the cable on the outlet post. 5 . The front maintenance device for solar controller according to claim 3 , wherein the monitoring module comprises a monitoring and processing module located below the inner side of the box door, a liquid crystal screen and a control key board located outside the box door. 6 . 6. The front maintenance device of the solar controller according to claim 3, wherein a bus bar is further provided on the beam in the box; The DC contact module and the AC mutual inductance module are located above the beam in the cabinet, and are connected to the monitoring and processing module through cables on the busbar. 7 . The front maintenance device for solar controllers according to claim 3 , wherein the fan module includes a fan mounted on a fan rail and a wind guide cover for guiding wind into the photovoltaic conversion module. 8 . 8. According to any one of claims 3-7, the solar controller front maintenance device is characterized in that, the bottom of the box is further provided with copper bars, and the side of the lower layer in the box is further provided with vertically arranged work place; The lightning protection module is grounded through a copper bar, and the DC output module, photovoltaic input control module, and single-board control module are grounded through a working ground bar respectively. 9. The front maintenance device for solar controllers according to claim 8, characterized in that, the working places are arranged in a Z-shaped three-layer structure.

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