WO2022206104A1

WO2022206104A1 - Inverter

Info

Publication number: WO2022206104A1
Application number: PCT/CN2022/071238
Authority: WO
Inventors: 于海洋; 韦仕元
Original assignee: 阳光电源（上海）有限公司
Priority date: 2021-04-02
Filing date: 2022-01-11
Publication date: 2022-10-06
Also published as: CN214756089U; AU2022247513A1; BR112023019611A2

Abstract

The present invention relates to the technical field of photovoltaics, and in particular to an inverter. The inverter provided by the present invention comprises an inverter body and a hanging plate assembly, wherein a protrusion is arranged on the inverter body, the hanging plate assembly is used for fixing the inverter body at a position to be mounted, the hanging plate assembly comprises a hanging plate body, a clamping slot is provided in the hanging plate body, and the protrusion is clamped and fixed in the clamping slot. When the inverter is mounted in a hanging manner, the hanging plate body is fixed at the position to be mounted, and then the protrusion is clamped and fixed in the clamping slot, so as to mount the inverter in a hanging manner, such that there are less mounting parts, the mounting process is simple, the mounting operation is convenient and fast, and mounting working hours are also saved.

Description

an inverter

This application claims the priority of the Chinese patent application with the application number of 202120679979.5 and the invention titled "An Inverter" filed with the China Patent Office on April 2, 2021, the entire contents of which are incorporated into this application by reference.

technical field

The present invention relates to the field of photovoltaic technology, in particular to an inverter.

Background technique

In the field of renewable energy solar power generation, inverters are vital equipment. For household and small commercial inverters, they are generally installed by hanging. The hanging plate components that realize the hanging installation of the inverter are required to be firm and reliable, easy to install and operate, and at the same time, the cost should be controlled within a reasonable range, and the cost should not be too high, otherwise the product will not be competitive. However, for the small inverters on the market today, in order to meet the functional requirements of hanging installation, the inverter body needs to undergo complex milling to make the hook structure. There are many processing procedures, high cost, and inconvenient installation and operation. There are also threaded holes on the inverter body, screws and other fasteners are screwed into the threaded holes, and the exposed screws and other fasteners act as a hook structure, which is clamped on the hanging plate assembly, but this method is complicated to operate. , it is necessary to screw fasteners such as screws to form hooks, and the structure is also unstable and reliable.

Based on this, it is urgent to invent an inverter to solve the problems of complicated mounting and installation of the inverter, numerous components, unstable structure and high cost.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an inverter, which has few hanging installation parts, simple installation process, convenient installation operation, save installation time, stable and reliable structure, low production cost, and improved inverter market competitiveness of the appliance.

For this purpose, the present invention adopts the following technical solutions:

An inverter comprising:

an inverter body, the inverter body is provided with a protrusion; and

A hanging plate assembly, used to fix the inverter body at the position to be installed, the hanging plate assembly includes a hanging plate body, the hanging plate body is provided with a clamping slot, and the protrusion is clamped and fixed on the hanging plate body. into the snap-in slot.

As a preferred solution, the snap groove is a U-shaped groove, two side walls of the U-shaped groove are inclined in the same direction, and the protrusion slides in along one side wall of the U-shaped groove, The other side wall of the U-shaped groove abuts on the protrusion.

As a preferred solution, the hanging board assembly further includes:

An auxiliary fastener is configured to fix the hanging plate body and the inverter body.

As a preferred solution, the inverter body is provided with a through hole, the hanging plate body is provided with a locking hole, the locking hole is arranged adjacent to the clamping groove, and the auxiliary fasteners are arranged in sequence. The hanging plate body and the inverter body are fixed through the locking hole and the through hole.

As a preferred solution, the hanging board body includes:

a fixing plate, the fixing plate is provided with a mounting hole, and the connecting piece passes through the mounting hole to fix the fixing plate on the to-be-installed position; and

Two clamping plates, the clamping plates are connected on both sides of the fixing plate, and the clamping grooves are provided on both the clamping plates.

As a preferred solution, the inverter body includes a back case and a plurality of heat dissipation fins arranged on the back case, the plurality of heat dissipation fins are arranged side by side, and the two outermost heat dissipation fins are upwardly facing The protrusions are arranged on the outside, and the inner walls of the two snap plates are respectively fitted with the outer walls of the two outermost heat dissipation fins.

As a preferred solution, the hanging plate body also includes:

A limit plate, the limit plate is located between the two clip plates, one side of the limit plate is vertically connected to the fixing plate, and the other side of the limit plate is connected to the heat dissipation fin The tops of the sheets fit together.

As a preferred solution, there are two limit plates, and the two limit plates are symmetrically arranged on both sides of the fixing plate.

As a preferred solution, a plurality of the mounting holes are provided, and the plurality of the mounting holes are arranged on the fixing plate at intervals.

As a preferred solution, the hanging plate body is integrally formed by bending a metal piece.

As a preferred solution, the inverter body and the protrusion are formed at one time.

Beneficial effects of the present invention:

The present invention provides an inverter, which includes an inverter body and a hanging plate assembly, and the hanging plate assembly can fix the inverter body at a position to be installed. The inverter body is provided with a protrusion, and the hanging board assembly includes a hanging board body. The hanging board body is provided with a clamping slot, so that when the inverter is installed, the hanging board body is first fixed on the to-be-installed. position, and then the protrusions are clamped and fixed in the clamping grooves, and the hanging installation of the inverter can be realized, so that the installation parts are few, the installation process is simple, the installation operation is convenient, and the installation time is saved.

Description of drawings

1 is a schematic structural diagram of an inverter in an embodiment of the present invention;

2 is a schematic structural diagram of a hanging board body in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an inverter with a hanging plate assembly removed in an embodiment of the present invention.

In the picture:

1. Inverter body; 11. Cooling fins; 111. Through holes; 12. Protrusions;

2. Hanging plate assembly; 21. Hanging plate body; 211, Fixing plate; 2111, Mounting hole; 212, Clamping plate; 2121, Clamping groove; 2122, Locking hole; firmware.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature includes that the first feature is directly below and diagonally below the second feature, or simply means that the first feature is horizontally lower than the second feature.

In the description of this embodiment, the terms "up", "down", "left", "right" and other azimuth or positional relationships are based on the azimuth or positional relationship shown in the accompanying drawings, which are only for the convenience of description and simplifying operations. It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

As shown in FIG. 1 , an inverter is provided in this embodiment. The inverter provided in this embodiment mainly refers to a photovoltaic inverter for household use and small commercial use. The photovoltaic inverter is mainly used to convert photovoltaic solar panels. The resulting variable DC voltage is converted to mains frequency AC, which is then fed back to the commercial transmission system, or for use in off-grid grids. The inverter includes an inverter body 1, and the inverter body 1 is mainly used to realize the current conversion function.

For household and small commercial inverters, they are generally installed by hanging. In order to realize the hanging installation of the inverter, as shown in FIG. 1 to FIG. 2 , the inverter further includes a hanging plate assembly 2 , and the hanging plate assembly 2 is used to fix the inverter body 1 at the position to be installed. Specifically, the inverter body 1 is provided with a protrusion 12 , and the hanging plate assembly 2 includes a hanging board body 21 . The hanging board body 21 is provided with a clamping slot 2121 , and the protrusion 12 is clamped and fixed in the clamping groove 2121 .

When the inverter is installed by hanging, it is necessary to fix the main body 21 of the hanging plate at the position to be installed, and then fix the protrusion 12 in the clamping groove 2121, so that the hanging installation of the inverter can be realized. There are few installation parts, the installation process is simple, the installation operation is convenient, and the installation time is saved.

Preferably, the inverter body 1 and the protrusions 12 are formed at one time, which is convenient for production and processing, and makes the structure more reliable, and the hanging plate assembly 2 is simple in design and low in production cost, thereby improving the market competitiveness of the inverter.

Specifically, as shown in FIG. 1 , the inverter body 1 includes a back case and a plurality of heat dissipation fins 11 arranged on the back case, and the plurality of heat dissipation fins 11 are arranged side by side for the inverter body 1 The internal electrical components dissipate heat to ensure the normal operation of the inverter. It should be noted that, in this embodiment, the protrusions 12 are provided on the heat dissipation fins 11 of the inverter body 1 . In other embodiments, the protrusions 12 may also be provided on other parts of the inverter body 1 .

Preferably, as shown in FIG. 2 , the snap groove 2121 is a U-shaped groove, and the two side walls of the U-shaped groove are inclined in the same direction. When the protrusion 12 needs to be snapped and fixed in the snap groove 2121 , it is necessary to slide the protrusion 12 along one side wall of the U-shaped groove. At this time, the other side wall of the U-shaped groove just abuts on the protrusion 12, so as to realize the connection between the hanging plate body 21 and the inverter body 1. When the protrusion 12 needs to be separated from the clamping groove 2121, the protrusion 12 is slid out along the side wall of the U-shaped groove, that is, the protrusion 12 and the clamping groove 2121 are snap-connected. It is more convenient to disengage. Since the two side walls of the U-shaped groove are inclined in the same direction, the protrusion 12 will not fall off when sliding into the U-shaped groove, which can ensure the stable connection between the protrusion 12 and the U-shaped groove. It should be noted that the inclination angle of the side wall of the U-shaped groove can be adjusted according to the size of the protrusion 12 to ensure that the protrusion 12 can smoothly slide into the U-shaped groove and be firmly clamped inside the U-shaped groove.

It should be noted that, in other embodiments, the clamping groove 2121 may also be a V-shaped groove or a U-shaped groove whose side walls are not inclined. It is enough to realize the snap connection and fixation of the protrusions 12 .

In order to ensure a more stable and reliable connection between the hanging plate body 21 and the inverter body 1 , as shown in FIG. 1 , the hanging plate assembly 2 further includes auxiliary fasteners 22 . The auxiliary fasteners 22 can connect the hanging plate body 21 to the cooling fins. The sheet 11 is locked and fixed, which further enhances the connection stability between the hanging plate body 21 and the inverter body 1 . In addition, by providing the auxiliary fasteners 22, the hanging plate body 21 can also be prevented from being detached from the inverter body 1 without a tool.

Specifically, as shown in FIG. 1 to FIG. 3 , the heat dissipation fin 11 is provided with a through hole 111 , and the hanging plate body 21 is provided with a locking hole 2122 , and the locking hole 2122 is arranged adjacent to the engaging groove 2121 , which assists the The fasteners 22 pass through the locking holes 2122 and the through holes 111 in sequence to fix the hanging plate body 21 and the heat dissipation fins 11 . The auxiliary fasteners 22 can be connected by bolts and nuts, and the bolts and nuts are connected in a detachable connection, which is convenient for disassembling the inverter body 1 from the hanging plate body 21 to replace and repair the inverter body 1. Secondly, the bolts and nuts are connected. The connection can prevent loosening, and has the advantages of stable and reliable connection and low cost. In addition, the opening of the through holes 111 on the heat dissipation fins 11 is more convenient for processing than the threaded holes, and it is convenient to realize the one-time molding of the heat dissipation fins 11 , the protrusions 12 and the through holes 111 . The locking hole 2122 is a threaded hole, which can ensure the locking and fixing of the auxiliary fastener 22 . It should be noted that since the protrusions 12 are clamped in the clamping grooves 2121, they play a certain role in limiting and fixing the inverter body 1, and opening the through holes 111 on the heat dissipation fins 11 will not cause the inverter. vibration of the main body 1. It should be noted that, in other embodiments, through holes 111 may also be opened in other parts of the inverter body 1 , as long as the auxiliary fasteners 22 can fix the hanging plate body 21 and the inverter body 1 .

The specific structure of the hanging plate body 21 will now be described with reference to FIG. 2 . As shown in FIG. 2 , the hanging plate body 21 includes a fixing plate 211 and two clamping plates 212 . The fixing plate 211 is provided with a mounting hole 2111 , and the connecting piece passes through it. The fixing plate 211 is fixed at the position to be installed through the mounting hole 2111 , the fixing plate 211 is connected with a clamping plate 212 on both sides, and a clamping slot 2121 is opened on the two clamping plates 212 . The clamping grooves 2121 on the 212 are respectively clamped with the protrusions 12 on the heat dissipation fins 11 to ensure that the hanging plate body 21 and the inverter body 1 are clamped and grounded more stably. Specifically, the connecting piece can be a screw connection, and the screw connection is a detachable connection, which is convenient for removing the hanging plate body 21 from the to-be-installed position. The screw connection also has the advantages of reliable connection, strong stability and low cost. It should be noted that, in this embodiment, locking holes 2122 are formed on both of the two clamping plates 212 .

Preferably, as shown in FIGS. 1 to 3 , when a plurality of heat dissipation fins 11 are arranged side by side, protrusions 12 are provided on the two outermost heat dissipation fins 11 , and the inner walls of the two clamping plates 212 They are respectively attached to the outer walls of the two outermost heat dissipation fins 11, so that the two clamping plates 212 completely clamp the heat dissipation fins 11 together, thereby increasing the installation of the hanging plate body 21 and the inverter body 1. area, so as to ensure that the hanging plate assembly 2 can fix the inverter body 1 more stably.

In addition, as shown in FIG. 2 , the hanging plate body 21 further includes a limit plate 213 , the limit plate 213 is located between the two clamping plates 212 , and one side of the limit plate 213 is vertically connected with the fixing plate 211 . The other side of the 213 is attached to the top of the heat dissipation fin 11 . By setting the limit plate 213, as long as the other side of the limit plate 213 is in contact with the top of the heat dissipation fin 11, it can be determined that the hanging plate body 21 is in the correct installation position, and the hanging plate body 21 and the inverter can be avoided. The inverter body 1 is deflected when it is clamped and fixed, which reduces the stability of the connection and provides a certain guiding effect for the clamping and fixing of the inverter body 1 .

Preferably, there are two limit plates 213 , and the two limit plates 213 are symmetrically arranged on both sides of the fixing plate 211 . When the inverter body 1 is clamped on the hanging plate body 21 , there is no need to manually set the limit plates 213 . The plate 213 is attached to the top of the heat dissipation fins 11 , and the two limiting plates 213 work together to play a guiding role to prevent the hanging plate body 21 and the inverter body 1 from being deflected when they are clamped and fixed.

Preferably, as shown in FIG. 2 , a plurality of installation holes 2111 are provided, the plurality of installation holes 2111 are arranged at intervals on the fixing plate 211 , and each installation hole 2111 is correspondingly provided with a connecting piece, so as to ensure that the hanging plate body 21 can be more Fixed firmly in the position to be installed.

In this embodiment, the hanging plate body 21 is integrally formed by bending a metal piece, so that the production of the hanging plate body 21 is easy to process and more stable and reliable.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

An inverter, characterized in that it includes:

an inverter body (1), a protrusion (12) is provided on the inverter body (1); and

A hanging plate assembly (2) for fixing the inverter body (1) at the position to be installed, the hanging plate assembly (2) comprising a hanging plate body (21), and the hanging plate body (21) is provided on the A clamping groove (2121) is opened, and the protrusion (12) is clamped and fixed in the clamping groove (2121).
The inverter according to claim 1, characterized in that, the snap groove (2121) is a U-shaped groove, two side walls of the U-shaped groove are inclined in the same direction, and the protrusion (12) Slide in along one side wall of the U-shaped groove, and the other side wall of the U-shaped groove abuts on the protrusion (12).
The inverter according to claim 1, wherein the hanging plate assembly (2) further comprises:

An auxiliary fastener (22) is configured to fix the hanging plate body (21) and the inverter body (1).
The inverter according to claim 3, characterized in that the inverter body (1) is provided with a through hole (111), and the hanging plate body (21) is provided with a locking hole (2122) , the locking hole (2122) is arranged adjacent to the snap groove (2121), and the auxiliary fastener (22) passes through the locking hole (2122) and the through hole (111) in sequence The hanging plate body (21) is fixed to the inverter body (1).
The inverter according to claim 1, wherein the hanging plate body (21) comprises:

a fixing plate (211), the fixing plate (211) is provided with a mounting hole (2111), and the connecting piece passes through the mounting hole (2111) to fix the fixing plate (211) on the to-be-installed position; as well as

Two clamping plates (212), the clamping plates (212) are connected on both sides of the fixing plate (211), and the clamping grooves ( 2121).
The inverter according to claim 5, wherein the inverter body (1) comprises a back case and a plurality of heat dissipation fins (11) arranged on the back case, and a plurality of the heat dissipation fins (11) are provided on the back case. The fins (11) are arranged side by side, the protrusions (12) are arranged outwardly on the two outermost heat dissipation fins (11), and the inner walls of the two clamping plates (212) are respectively connected with the outermost heat dissipation fins (11). The outer walls of the two outer heat dissipation fins (11) are in contact with each other.
The inverter according to claim 6, wherein the hanging plate body (21) further comprises:

A limiter plate (213), the limiter plate (213) is located between the two snap plates (212), and one side of the limiter plate (213) is vertically connected to the fixing plate (211) , the other side of the limiting plate (213) is attached to the top of the heat dissipation fin (11).
The inverter according to claim 7, characterized in that, there are two limiting plates (213), and the two limiting plates (213) are symmetrical on both sides of the fixing plate (211). set up.
The inverter according to claim 5, wherein a plurality of the mounting holes (2111) are provided, and the plurality of the mounting holes (2111) are provided at intervals on the fixing plate (211).
The inverter according to claim 1, characterized in that, the hanging plate body (21) is integrally formed by bending a metal part.
The inverter according to claim 1, characterized in that, the inverter body (1) and the protrusion (12) are formed at one time.