CN218771988U

CN218771988U - String type photovoltaic inverter

Info

Publication number: CN218771988U
Application number: CN202222860625.8U
Authority: CN
Inventors: 秦福田; 陈瑶
Original assignee: Xi'an Angchen Energy Saving Technology Co ltd
Current assignee: Xi'an Angchen Energy Saving Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-28
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a group's string formula photovoltaic inverter, including the photovoltaic inverter body, the equal fixedly connected with connecting piece of photovoltaic inverter body both sides wall, the photovoltaic inverter body has the protection machanism who is used for protecting photovoltaic inverter body below cable, protection machanism is including setting up the first casing at photovoltaic inverter body lower extreme, the equal fixedly connected with installed part of first casing both sides wall, the installed part passes through fastening bolt and adjacent connecting piece fixed connection. The utility model discloses set up protection machanism, first casing can protect dc-to-ac converter below cable interface with the second casing, avoids the cable to be dragged and can also avoid the cable ageing because of insolation simultaneously, and then has improved the life of cable, has set up first spacing groove, second spacing groove and fixture block in addition, and the maintenance board can be taken off fast and put back, satisfies the needs of quick maintenance, and then has improved the practicality of device.

Description

String type photovoltaic inverter

Technical Field

The utility model relates to an inverter technical field especially relates to a group's string formula photovoltaic inverter.

Background

An inverter is a power conditioning apparatus composed of semiconductor devices, mainly used for converting dc power into ac power, and generally includes a boost circuit and an inverter bridge circuit. The boosting circuit boosts the direct-current voltage of the solar battery to the direct-current voltage required by the output control of the inverter; the inverter bridge type loop equivalently converts the boosted direct-current voltage into alternating-current voltage with common frequency.

Current photovoltaic group string formula dc-to-ac converter sets up at the open air usually, therefore the socket of dc-to-ac converter bottom and the cable on the socket expose outside, and the cable is exposed the in-process for a long time and is dragged easily, also is ageing at the insolate in-process easily, and then influences its life, and the easy touch of people's hand and foreign matter in addition has the potential safety hazard, so, needs design a group string formula photovoltaic inverter to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the group's string photovoltaic inverter who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a group's string formula photovoltaic inverter, includes the photovoltaic inverter body, the equal fixedly connected with connecting piece of photovoltaic inverter body both sides wall, the photovoltaic inverter body has the protection machanism who is used for protecting photovoltaic inverter body below cable, protection machanism is including setting up the first casing at photovoltaic inverter body lower extreme, the equal fixedly connected with installed part of first casing both sides wall, the installed part passes through fastening bolt and adjacent connecting piece fixed connection, the last nut that is equipped with of fastening bolt, first casing lower extreme fixedly connected with second casing, the wiring mouth has been seted up to first casing upper end, be equipped with a plurality of fixed establishment that are used for fixed cable in the second casing.

Preferably, fixed establishment includes fixed connection at the installing frame of second shells inner wall, the installing frame inner wall rotates and is connected with the pivot, pivot lateral wall fixedly connected with stationary blade, the stationary blade passes through torsion spring and installing frame lateral wall elastic connection.

Preferably, a first limiting groove is formed in the side wall of the first shell, a clamping block is arranged in the first limiting groove, and a maintenance plate is fixedly connected to the side wall of the clamping block.

Preferably, a plurality of weather shields of first casing lateral wall fixedly connected with, a plurality of air inlets have been seted up to first casing lateral wall, and is a plurality of weather shield equidistant setting, it is a plurality of the air inlet equidistant setting.

Preferably, the lower end of the first shell is fixedly connected with a temporary storage plate, a second limiting groove is formed in the side wall of the temporary storage plate, and the cross section of the second limiting groove is L-shaped.

Preferably, the second shell is obliquely arranged, an opening is formed in one end, away from the first shell, of the second shell, and the rain baffle is obliquely arranged.

The utility model discloses in, following beneficial effect has:

1. the protection mechanism is arranged in the device, the cable is connected with the lower interface of the inverter through the wiring port and plugged into the second shell, the cable passes through the second shell and then is connected with the socket of the rear row of the inverter, the first shell and the second shell can protect the cable interface below the inverter, the inverter is prevented from being powered off due to the fact that the cable is pulled, meanwhile, the cable can be prevented from being aged due to insolation, and the service life of the cable is prolonged;

2. this device has set up first spacing groove, second spacing groove and fixture block, push and block the downwardly moving fixture block, the vertical portion of first fixture block is spacing by first spacing groove, it is spacing by first casing lateral wall to maintain the board lateral wall, therefore can not take place to rotate, otherwise, push and downwardly moving fixture block, the vertical portion of first fixture block is spacing by two inner walls of second spacing groove therefore can not take place to rotate, easy operation, the maintenance board can be taken off fast and put back, satisfy the needs of quick maintenance, and then the practicality of device has been improved.

Drawings

Fig. 1 is a perspective view of a string-type photovoltaic inverter according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a first housing and a second housing of a string-type photovoltaic inverter according to the present invention;

fig. 3 is an enlarged view of a structure of fig. 1.

In the figure: the photovoltaic inverter comprises a photovoltaic inverter body 1, a first shell 2, a maintenance plate 3, a fastening bolt 4, a rain baffle 5, a second shell 6, a connecting piece 7, an installation piece 8, an air inlet 9, a clamping block 10, a first limiting groove 11, a wiring port 12, a temporary storage plate 13, a second limiting groove 14, a fixing piece 15, a torsion spring 16 and a maintenance port 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a string type photovoltaic inverter comprises a photovoltaic inverter body 1, connecting pieces 7 are fixedly connected to two side walls of the photovoltaic inverter body 1, a protection mechanism used for protecting cables below the photovoltaic inverter body 1 is arranged below the photovoltaic inverter body 1, the protection mechanism comprises a first shell 2 arranged at the lower end of the photovoltaic inverter body 1, mounting pieces 8 are fixedly connected to two side walls of the first shell 2, the mounting pieces 8 are fixedly connected with adjacent connecting pieces 7 through fastening bolts 4, nuts are arranged on the fastening bolts 4, a second shell 6 is fixedly connected to the lower end of the first shell 2, and wiring ports 12 are formed in the upper end of the first shell 2.

Be equipped with a plurality of fixed establishment that are used for fixed cable in the second casing 6, fixed establishment includes the installing frame of fixed connection at the 6 inner walls of second casing, and the installing frame inner wall rotates and is connected with the pivot, pivot lateral wall fixedly connected with stationary blade 15, stationary blade 15 through torque spring 16 and installing frame lateral wall elastic connection.

The utility model discloses in, first spacing groove 11 has been seted up to 2 lateral walls of first casing, are equipped with fixture block 10 in the first spacing groove 11, and fixture block 10 lateral wall fixedly connected with maintenance panel 3, fixture block 10 cross-section are L shape.

The utility model discloses in, 2 lateral walls fixedly connected with of first casing a plurality of

weather shields

5, 2 lateral walls of first casing have seted up a plurality of air inlets 9, and a plurality of weather shields 5 equidistant settings, a plurality of air inlets 9 equidistant settings, the air can get into first casing 2 through air inlet 9 to the heat dissipation requirement of dc-to-ac converter below has been guaranteed.

The utility model discloses in, 2 lower extreme fixedly connected with temporary storage plates 13 of first casing, temporary storage plates 13 lateral wall have seted up second spacing groove 14, and second spacing groove 14 cross-section is L shape, and second spacing groove 14 inner wall can be spacing to fixture block 10 for fixture block 10 can't take place to rotate.

The utility model discloses in, 6 slopes of second casing set up, and second casing 6 can just be to dc-to-ac converter cable wiring department, accords with the condition that the actual slope of dc-to-ac converter cable set up, and the one end that first casing 2 was kept away from to second casing 6 has seted up the opening, and the slope of weather shield 5 sets up.

When the maintenance device is used, the maintenance plate 3 is moved upwards, the upper end of the fixture block 10 is attached to the inner wall of the first limiting groove 11, the fixture block 10 is moved leftwards and pulled out, the maintenance plate 3 can be taken down, a cable is connected with an interface below the inverter through the wiring port 12 and plugged into the second shell 6, the cable passes through the second shell 6 and then is connected with a socket on the rear row of the inverter, the cable interface below the inverter can be protected by the first shell 2 and the second shell 6, the inverter is prevented from being powered off due to the fact that the cable is pulled, meanwhile, the cable can be prevented from being aged due to insolation, and the service life of the cable is prolonged;

the upper end of a fixture block 10 is attached to the top in a first limiting groove 11, the fixture block 10 is pushed into the fixture block 10, the fixture block 10 is moved downwards, the vertical part of the first fixture block 10 is limited by the first limiting groove 11, the side wall of a maintenance plate 3 is limited by the side wall of a first shell 2, and therefore rotation cannot occur, otherwise, when maintenance is needed, the maintenance plate 3 is taken down according to the steps, the upper end of the fixture block 10 is attached to the top in a second limiting groove 14, the fixture block 10 is pushed into the fixture block 10, the fixture block 10 is moved downwards, the vertical part of the first fixture block 10 is limited by two inner walls of the second limiting groove 14, and therefore rotation cannot occur, the operation is simple, the maintenance plate 3 can be taken down quickly, the requirement of quick maintenance is met, meanwhile, the maintenance plate 3 is also very simple to install, and further the practicability of the device is improved;

when the cable passes through second casing 6, rotate stationary blade 15, pass stationary blade 15 below with the cable, loosen stationary blade 15, stationary blade 15 reverses under torque spring 16 elastic action, supports tight cable upper end, has avoided the loose of cable, makes its neatly arranged, and then has improved the practicality of device.

The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and the technical solution and the practical idea of the present invention should be covered within the protection scope of the present invention by equivalent replacement or change.

Claims

1. The utility model provides a string formula photovoltaic inverter, includes photovoltaic inverter body (1), its characterized in that, the equal fixedly connected with connecting piece (7) of photovoltaic inverter body (1) both sides wall, photovoltaic inverter body (1) has the protection machanism who is used for protecting photovoltaic inverter body (1) below cable, protection machanism is including setting up first casing (2) at photovoltaic inverter body (1) lower extreme, the equal fixedly connected with installed part (8) of first casing (2) both sides wall, installed part (8) are through fastening bolt (4) and adjacent connecting piece (7) fixed connection, be equipped with the nut on fastening bolt (4), first casing (2) lower extreme fixedly connected with second casing (6), wiring mouth (12) have been seted up to first casing (2) upper end, be equipped with a plurality of fixed establishment that are used for fixed cable in second casing (6).

2. A string-type pv inverter as claimed in claim 1, wherein the fixing mechanism comprises a mounting frame fixedly connected to the inner wall of the second housing (6), the inner wall of the mounting frame is rotatably connected with a rotating shaft, the side wall of the rotating shaft is fixedly connected with a fixing plate (15), and the fixing plate (15) is elastically connected to the side wall of the mounting frame through a torsion spring (16).

3. A string-type pv inverter according to claim 2, wherein the first casing (2) has a first limiting groove (11) formed in a side wall thereof, a clamping block (10) is disposed in the first limiting groove (11), and a maintenance plate (3) is fixedly connected to a side wall of the clamping block (10).

4. A string-type pv inverter as claimed in claim 3, wherein a plurality of rain baffles (5) are fixedly connected to the side wall of the first casing (2), a plurality of air inlets (9) are opened on the side wall of the first casing (2), the plurality of rain baffles (5) are disposed at equal intervals, and the plurality of air inlets (9) are disposed at equal intervals.

5. A string-type photovoltaic inverter according to claim 4, wherein a temporary storage plate (13) is fixedly connected to the lower end of the first housing (2), a second limiting groove (14) is formed in the side wall of the temporary storage plate (13), and the cross section of the second limiting groove (14) is L-shaped.

6. A string-type photovoltaic inverter as claimed in claim 4, characterized in that the second housing (6) is disposed obliquely, an opening is opened at an end of the second housing (6) remote from the first housing (2), and the rain shield (5) is disposed obliquely.