Reverse connection prevention type solar inverter

Abstract

The utility model discloses an anti-reverse connection type solar inverter, which comprises an inverter main body, two plug-in fixing mechanisms are symmetrically arranged at the bottoms of the two sides of the inverter main body, a first joint and a second joint are symmetrically arranged on one side, adjacent to the plug-in fixing mechanisms, of the inverter main body, one end of the first joint is electrically connected with a first diode, and the other end of the first joint is electrically connected with a second diode. According to the utility model, the first joint and the second joint are coated with the anti-corrosion paint with different colors, so that the distinguishing is convenient, the probability of misconnection is reduced, the two joints are electrically connected with the diodes, and the unilateral conductivity of the diodes is utilized to prevent reverse connection, so that the condition of equipment damage caused by reverse connection is avoided, and the service life of the equipment is prolonged; through the installation of the plug-in fixing mechanism, the inverter main body is suspended and installed by using the limiting suspension hole and the screw rod, and meanwhile, the rotary screwing plate is used for driving the fastening nut to press and fix, so that the installation and disassembly are performed without a professional tool, and the later disassembly and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar inverter technical field, especially in preventing reverse connection type solar inverter. BACKGROUND

[0002] Inverter is also called power regulator, power regulator, and is an indispensable part of photovoltaic system, and the most important function of photovoltaic inverter is to convert the direct current generated by solar panel into alternating current used by household appliances, and the electricity generated by solar panel needs to be processed by inverter before being output externally, and through full-bridge circuit, SPWM processor is generally used to process modulation, filtering, voltage boosting, etc., to obtain sinusoidal alternating current matched with lighting load frequency, rated voltage, etc.

[0003] Now the existing solar inverter on the market has positive and negative distinction in wiring process, but still has positive and negative reverse connection, and positive and negative reverse connection is extremely harmful to equipment, which can easily cause equipment damage and greatly shorten the service life of equipment, and at the same time, in order to use conveniently, the existing solar inverter is mostly installed together with solar cell panel, however, during installation of solar inverter, expansion bolts or screws are needed for fixing, which is time-consuming and laborious to install and disassemble, and increases the difficulty of disassembly and maintenance in later period. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] The utility model aims at providing a reverse connection type solar inverter to solve the problems of equipment damage and great installation and disassembly difficulty of the existing solar inverter. (II) Utility model contents

[0007] In order to solve the above technical problems, the utility model provides the following technical scheme: a reverse connection type solar inverter, comprising an inverter main body, two plug-in fixing mechanisms are symmetrically installed at the bottom of both sides of the inverter main body, a first connector and a second connector are symmetrically installed on the adjacent side of the plug-in fixing mechanism on the inverter main body, a first diode is electrically connected to one end of the first connector, a circuit board is electrically connected to one end of the first diode, the circuit board is installed inside the inverter main body, a second diode is electrically connected to one side of the circuit board, and one end of the second diode is electrically connected to one end of the second connector.

[0008] Further, three anti-skid rings are uniformly sleeved on the outer circumference of the first connector, three anti-skid rings are also uniformly installed on the outer circumference of the second connector, two fixing blocks are installed at the edge position of one end of the outer circumference of the first connector and the second connector, the two fixing blocks are symmetrically installed on the center of the adjacent side of the plug-in fixing mechanism on the inverter main body, red anticorrosive paint is coated on the periphery of the first connector, and green anticorrosive paint is coated on the periphery of the second connector.

[0009] Further, the top of the inverter body is provided with a top cover, and the top cover is provided with a display screen on one side of the top, and a handle is arranged on one side of the center of the top of the top cover.

[0010] Further, a plurality of heat dissipation holes are arranged on the other side of the inverter body adjacent to the plug-in fixing mechanism.

[0011] Further, the plug-in fixing mechanism comprises side plates, fastening nuts, mounting plates, mounting holes, limiting suspension holes, plug-in through holes, screws, screw plates and stop blocks, two side plates are symmetrically arranged on the bottom of the inverter body, four plug-in through holes are symmetrically arranged on the corners of the two side plates, four limiting suspension holes are arranged on one side of the four plug-in through holes, four screws are movably arranged in the four limiting suspension holes, four fastening nuts are sleeved on the lower parts of the four screws, the four fastening nuts are fixedly connected with the four screws through threads, the bottom of the four fastening nuts is attached to the top corners of the two side plates, and two screw plates are symmetrically arranged on the top of the four fastening nuts.

[0012] Further, four stop blocks are sleeved on the lower parts of the four screws, the top of the four stop blocks is attached to the bottom corners of the two side plates, four mounting plates are arranged on the bottom of the four screws, and four mounting holes are symmetrically arranged on the four corners of the four mounting plates.

[0013] (Three) beneficial effects

[0014] The anti-reverse connection type solar inverter has the advantages that:

[0015] 1. The first joint and the second joint are coated with different colors of anticorrosive paint, so that they are easy to distinguish and the probability of misconnection is reduced, and the two joints are electrically connected with diodes, and the anti-reverse connection is realized by using the one-way conductivity of the diodes, so that the damage of the equipment caused by reverse connection is avoided, and the service life of the equipment is prolonged.

[0016] 2. The plug-in fixing mechanism is installed, the inverter body is suspended and installed by using the limiting suspension holes and the screws, the fastening nuts are pressed and fixed by rotating the screw plates, professional tools are not needed for installation and disassembly, and the equipment is convenient for disassembly and maintenance in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 The overall structure perspective view of the utility model;

[0019] Figure 2 The overall structure front view of the utility model; Figure 1 The A area of the middle amplification schematic view;

[0020] Figure 3 The overall structure front view of the utility model;

[0021] Figure 4 The overall structure side view of the utility model;

[0022] Figure 5 The circuit connection view of the first joint and the second joint of the utility model;

[0023] In the figure: 1, inverter main body;2, top cover;3, display screen;4, heat dissipation hole;5, handle;6, plug-in fixing mechanism;7, first joint;8, second joint;9, anti-skid ring;10, fixed block;11, first diode;12, second diode;13, circuit board;601, side plate;602, fastening nut;603, mounting bottom plate;604, mounting hole;605, limit suspension hole;606, plug-in through hole;607, screw;608, twist plate;609, stop block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-5The utility model provides an embodiment: prevent anti -type solar energy inverter, including inverter main part 1, inverter main part 1 top installs the top cover 2, and the top cover 2 top one side installs display screen 3, and the top cover 2 top center one side installs the handle 5, and inverter main part 1 both sides bottom symmetry installs two plug -in fixed establishment 6, and plug -in fixed establishment 6 includes side plate 601, fastening nut 602, installation bottom plate 603, mounting hole 604, spacing suspension hole 605, plug -in through -hole 606, screw 607, twist board 608 and stop block 609, inverter main part 1 both sides bottom symmetry installs two side plate 601, and two side plate 601 two corners respectively symmetry installs four plug -in through -holes 606, four plug -in through -holes 606 one side is equipped with four spacing suspension holes 605, and four spacing suspension holes 605 inside swing and insert four screw 607, four screw 607 middle upper portion sleeve joint has four fastening nuts 602, and four fastening nuts 602 with four screw 607 pass through thread fixed connection, four fastening nuts 602 bottom and two side plate 601 top two corners respectively adhere, four fastening nuts 602 top two sides respectively symmetry installs two twist boards 608, four screw 607 middle lower portion sleeve joint fixed has four stop blocks 609, and four stop blocks 609 top and two side plate 601 bottom two corners adhere, four screw 607 bottom installs four installation bottom plates 603, and four installation bottom plates 603 four corners symmetry are equipped with four mounting holes 604, be favorable to through plug -in fixed establishment 6 realizes the quick installation of inverter main part 1 dismantling, and inverter main part 1 on plug -in fixed establishment 6's adjacent one side symmetry installs first joint 7 and second joint 8, first joint 7 one end electric connection has first diode 11, and first diode 11 one end electric connection has circuit board 13, and circuit board 13 installs in inverter main part 1 inside, and circuit board 13 one side electric connection has second diode 12, and second diode 12 one end with second joint 8 one end electric connection, first joint 7 outer circumference even sleeve joint has three antiskid rings 9, and second joint 8 outer circumference also even installs three antiskid rings 9, and first joint 7 and second joint 8 outer circumference one end edge position installs two fixed blocks 10, two fixed blocks 10 symmetry installs in inverter main part 1 on plug -in fixed establishment 6's adjacent one side center, first joint 7 periphery coats red anticorrosive paint, second joint 8 periphery coats green anticorrosive paint, be favorable to through anticorrosion anticorrosion, inverter main part 1 on the center of the adjacent other side of plug -in fixed establishment 6 is equipped with heat dissipation hole 4, be favorable to through heat dissipation hole 4 carries out heat dissipation.

[0026] Working principle: during use, first, the mounting bottom plate 603 in the plug-in fixing mechanism 6 is fixed and installed to the specified position according to the need, at this time, the screw rod 607 is inserted from the plug-in through hole 606, and then the screw rod 607 is moved along the limiting hanging hole 605 until the bottom of the side plate 601 is attached to the position of the stop block 609, and then the fastening nut 602 is sleeved to the screw rod 607, the rotating plate 608 is rotated, then the fastening nut 602 is pressed to the top of the side plate 601 by using the thread, the pressing and fixing of the side plate 601 are realized, and the quick installation of the inverter main body 1 is completed, when disassembly is needed, the fastening nut 602 is unscrewed, then the screw rod 607 is moved to the plug-in through hole 606 along the limiting hanging hole 605, then the inverter main body 1 is pulled out, the quick installation and disassembly of the inverter main body 1 are completed, maintenance is facilitated, when wiring is needed, the first connector 7 and the second connector 8 are coated with red and green anticorrosive paint respectively, the positive and negative poles are distinguished, and one end of the first connector 7 and the second connector 8 is electrically connected with the first diode 11 and the second diode 12, and the first diode 11 and the second diode 12 are electrically connected with the circuit board 13, so that the anti-reverse connection is realized by using the one-way conductivity of the first diode 11 and the second diode 12, the damage of the inverter main body 1 caused by reverse connection is avoided, the anti-skid ring 9 is used for anti-skid, the fixing block 10 is used for fixing the first connector 7 and the second connector 8, the top cover 2 is used for opening the inverter main body 1 for maintenance, the display screen 3 is used for displaying the working data of the inverter main body 1, and the handle 5 is used for opening the top cover 2.

[0027] In the description of the utility model, it is to explain that, unless there is definite stipulation and limitation, the term '' install '' '' link '' '' connect '' should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. Those skilled in the art can understand and implement without creative labor.

[0029] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A reverse-connection-protected solar inverter, comprising an inverter body (1), characterized in that: Two plug-in fixing mechanisms (6) are symmetrically installed on the bottom of both sides of the inverter body (1). A first connector (7) and a second connector (8) are symmetrically installed on the adjacent side of the plug-in fixing mechanism (6) on the inverter body (1). One end of the first connector (7) is electrically connected to a first diode (11), and one end of the first diode (11) is electrically connected to a circuit board (13). The circuit board (13) is installed inside the inverter body (1). One side of the circuit board (13) is electrically connected to a second diode (12), and one end of the second diode (12) is electrically connected to one end of the second connector (8).

2. The reverse-connection-protected solar inverter according to claim 1, characterized in that: The first connector (7) has three anti-slip rings (9) evenly fitted around its outer circumference. The second connector (8) also has three anti-slip rings (9) evenly installed around its outer circumference. Two fixing blocks (10) are installed at the edge of one end of the outer circumference of the first connector (7) and the second connector (8). The two fixing blocks (10) are symmetrically installed on the center of the adjacent side of the plug-in fixing mechanism (6) on the inverter body (1). The outer periphery of the first connector (7) is coated with red anti-corrosion paint, and the outer periphery of the second connector (8) is coated with green anti-corrosion paint.

3. The reverse-connection-protected solar inverter according to claim 1, characterized in that: The inverter body (1) is equipped with a top cover (2), and a display screen (3) is installed on one side of the top of the top cover (2), and a handle (5) is installed on the center side of the top of the top of the top cover (2).

4. The reverse-connection-protected solar inverter according to claim 1, characterized in that: A heat dissipation hole (4) is provided on the inverter body (1) at the center of the opposite side of the plug-in fixing mechanism (6).

5. The reverse-connection-protected solar inverter according to claim 1, characterized in that: The plug-in fixing mechanism (6) includes a side plate (601), a fastening nut (602), a mounting base plate (603), a mounting hole (604), a limiting suspension hole (605), a plug-in through hole (606), a screw (607), a screw plate (608), and a stop block (609). Two side plates (601) are symmetrically installed on the bottom of both sides of the inverter body (1), and four plug-in through holes (606) are symmetrically installed on the two corners of the two side plates (601). The four plug-in through holes (606) are located on one side of each side plate. Four limiting suspension holes (605) are provided, and four screws (607) are movably inserted into the four limiting suspension holes (605). Four fastening nuts (602) are sleeved on the upper part of the four screws (607), and the four fastening nuts (602) are fixedly connected to the four screws (607) by threads. The bottom of the four fastening nuts (602) is respectively attached to the top two corners of the two side plates (601). Two screw plates (608) are symmetrically installed on the top two sides of the four fastening nuts (602).

6. The reverse-connection-protected solar inverter according to claim 5, characterized in that: The lower part of the four screws (607) is fitted with four stops (609), and the top of the four stops (609) is attached to the bottom two corners of the two side plates (601). The bottom of the four screws (607) is fitted with four mounting base plates (603), and the four mounting base plates (603) are symmetrically provided with four mounting holes (604) at the four corners.

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