Simple wiring photovoltaic off-grid inverter

Abstract

The utility model belongs to the technical field of photovoltaic off-grid inverters, and particularly discloses a simple wiring photovoltaic off-grid inverter, which comprises a shell, a support is fixed in the shell and divides the interior of the shell into two mounting cavities, an inverter mainboard is mounted in one mounting cavity, and the inverter mainboard is mounted in the other mounting cavity. A connecting mechanism is arranged in the other mounting cavity, the connecting mechanism is fixed to the support, and the connecting mechanism comprises a connector fixed to the end of the cable and a PV connector with an anti-disengaging function. According to the utility model, the PV connector with an anti-drop function is arranged in the housing, so that the connection position of the cable and the inverter main body is moved to the interior of the housing, the housing is utilized to protect the connection mechanism, the dustproof and waterproof effects at the cable joint are increased, the use safety is improved, and meanwhile, when the cable is installed and replaced, the operation is convenient. After the upper side cover is detached, the cable can be rapidly installed and replaced, and the wiring convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic off -grid inverter technical field, concretely is a simple wiring photovoltaic off -grid inverter. BACKGROUND

[0002] The PV terminal of photovoltaic inverter on the market usually adopts DuPont terminal table wiring design, realizes direct current transmission through standard interface, and combines state monitoring and feedback mechanism to ensure stable operation of the system.

[0003] However, since the PV terminal is usually installed on the side or at the bottom of the machine, the state is usually exposed to improve the maintainability and safety of the equipment, but the state of the terminal is exposed, which reduces the waterproof level, and the long-term exposure accumulates a large amount of dust, the dustproof effect is poor, and the safety of use is reduced, therefore we need to propose a simple wiring photovoltaic off -grid inverter to solve the above problems, so that it can be conveniently wired and disassembled, and the dustproof and waterproof effect is improved, and the safety of use is improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a simple wiring photovoltaic off -grid inverter, which can conveniently wire and disassemble, improve the dustproof and waterproof effect, and improve the safety of use to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a simple wiring photovoltaic off -grid inverter, comprising a shell, a support is fixed in the inside of the shell, the support divides the inside of the shell into two installation cavities, one of the installation cavities is provided with an inverter mainboard, the other installation cavity is provided with a connecting mechanism, the connecting mechanism connects the cable introduced into the inside of the shell with the inverter mainboard, and the connecting mechanism is fixed with the support, an upper side cover that covers the shell is arranged above the connecting mechanism.

[0006] The connecting mechanism comprises a connecting head fixed on the end of the cable and a PV connector with anti -drop function, and the two ends of the PV connector are fixed with the support of the connecting head.

[0007] Preferably, the PV connector comprises a male head and a female head, the male head and the female head are inserted between each other, and the anti -drop mechanism is arranged between the male head and the female head.

[0008] Preferably, one end of the male head is provided with a plug post, one end of the female head is provided with a plug hole for inserting the plug post, and the other end of the male head and the other end of the female head are connected with the connecting head and the support respectively.

[0009] Preferably, the other end of the male head and the other end of the female head are fixed with studs, the studs are connected with the support through fixing nuts, and the connecting head is provided with a threaded hole for screwing the studs.

[0010] Preferably, the support is fixed with an L-shaped plate, the L-shaped plate is provided with a through hole for the studs to pass through, a fan is installed below the L-shaped plate, and a folded edge is arranged on one side of the L-shaped plate.

[0011] Preferably, the anti-disengagement mechanism comprises buckles arranged on both sides of the stud, one end of the buckle is fixed with one end of the male head, the female head is provided with a clamping hole for the buckle to insert, and both sides of the female head are provided with limiting notches for clamping and limiting the buckle.

[0012] Preferably, the connecting mechanism is provided with multiple groups, the connecting mechanisms are arranged side by side, and the male head and the female head on the connecting mechanism can be alternately connected with the connecting head.

[0013] Preferably, one side of the shell is fixed with a side plate, and the side plate is provided with a threading mechanism for the cable to pass through.

[0014] Preferably, the threading mechanism comprises a U-shaped sleeve made of rubber, the side plate is provided with a U-shaped notch, the outer wall of the U-shaped sleeve is provided with a clamping groove, and the U-shaped sleeve is sleeved in the U-shaped notch.

[0015] Preferably, the upper surface of the shell is embedded with a display screen, and the upper side cover is fixed with the shell through bolts.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The PV connector with the anti-disengagement function is arranged in the shell, the cable and the inverter main body are connected to the inside of the shell, the connecting mechanism is protected by the shell, the dustproof and waterproof effects of the cable joint are improved, the safety in use is improved, the cable can be quickly installed and replaced after the upper side cover is disassembled, and the convenience of wiring is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a structural schematic view of the utility model connecting mechanism installation structure;

[0020] Figure 3 It is a structural schematic view of the utility model Figure 2 enlarged structure schematic view of B;

[0021] Figure 4The utility model discloses a connecting mechanism and support mounting structure schematic diagram.

[0022] Figure 5 The utility model discloses a connecting mechanism installation cross section structure schematic diagram.

[0023] Figure 6 The utility model discloses a connecting mechanism and support mounting structure schematic diagram. Figure 5 The utility model discloses a connecting mechanism and support mounting structure schematic diagram.

[0024] Figure 7 The utility model discloses a PV connector structure schematic diagram.

[0025] In the figure: 1, shell, 2, display screen, 3, folding edge, 4, upper side cover, 5, side plate, 6, cable, 7, fan, 8, threading mechanism, 81, U-shaped cover, 82, clamping groove, 9, connecting mechanism, 91, PV connector, 911, female head, 912, male head, 92, connecting head, 93, fixed nut, 94, stud, 95, jack, 96, limiting gap, 97, insertion column, 98, clamping hole, 99, buckle, 10, support, 11, L-shaped plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0027] Please refer to Figures 1-7 The utility model provides a kind of simple wiring photovoltaic off-grid inverter, including shell 1, the inside fixed support 10 of shell 1, the support 10 is divided into two installation cavities in shell 1, one of the installation cavities is installed with inverter mainboard, another installation cavity is provided with connecting mechanism 9, connecting mechanism 9 is connected with inverter mainboard to the cable 6 introduced to the inside of shell 1, and connecting mechanism 9 is fixed with support 10, the upper side cover 4 of connecting mechanism 9 is provided with the upper side cover 4 of shell 1, when cable 6 is installed and replaced, after disassembling upper side cover 4, cable 6 can be quickly installed and replaced, improve the convenience of wiring.

[0028] The connecting mechanism 9 comprises a connecting head 92 fixed at the end of the cable 6 and a PV connector 91 with anti-dropping function, both ends of the PV connector 91 are fixed with the support 10 of the connecting head 92, the PV connector 91 with anti-dropping function is arranged inside the shell 1, the connecting position of the cable 6 and the inverter main body is moved to the inside of the shell 1, the connecting mechanism 9 is protected by the shell 1, the dustproof and waterproof effects of the joint of the cable 6 are increased, and the safety in use is improved.

[0029] The PV connector 91 comprises a male head 912 and a female head 911, the male head 912 is inserted with the female head 911, the male head 912 and the female head 911 can be quickly connected by the insertion of the male head 912 and the female head 911, the quickness of the wiring of the cable 6 is improved, and the anti-dropping mechanism is arranged between the male head 912 and the female head 911, so that the connection force between the male head 912 and the female head 911 can be improved after the male head 912 and the female head 911 are assembled, and the falling and loosening phenomenon between the male head 912 and the female head 911 is prevented.

[0030] One end of the male head 912 is provided with a plug column 97, one end of the female head 911 is provided with a plug hole 95 for inserting the plug column 97, the other end of the male head 912 and the other end of the female head 911 are connected with the connecting head 92 and the support 10 respectively, the plug-in of the plug column and the plug hole can improve the alignment accuracy of the plug-in of the male head 912 and the female head 911, and can also ensure the conductivity between the male head 912 and the female head 911.

[0031] The other end of the male head 912 and the other end of the female head 911 are both fixed with a threaded column 94, the threaded column 94 is connected with the support 10 through a fixed nut 93, the connecting head 92 is provided with a threaded hole for screwing the threaded column 94, the threaded hole on the fixed nut 93 matches the threaded hole on the connecting head 92, so that the male head 912 or the female head 911 can be connected and fixed with the connecting head 92 and the support 10 respectively according to the actual installation requirement, and the versatility of the PV connector 91 is improved.

[0032] The support 10 is fixed with an L-shaped plate 11, the L-shaped plate 11 is provided with a through hole for the threaded column 94 to pass through, the support 10 is installed below the L-shaped plate 11 and is provided with a flange 3 on one side of the L-shaped plate 11, the PV connector 91 is supported and fixed by the L-shaped plate 11, the fan 7 is used for heat dissipation of the inverter main board to accelerate the heat dissipation speed of the inverter main board, the shell 1 and the side plate 5 are both provided with heat dissipation holes, the air circulation rate inside the shell 1 is accelerated by the fan 7, so that the heat dissipation efficiency inside the shell 1 is improved.

[0033] The anti-disengagement mechanism comprises buckles 99 located on both sides of the insertion column 97, one end of the buckle 99 is fixed with one end of the male head 912, the female head 911 is provided with a buckle hole 98 for inserting the buckle 99, and the two sides of the female head 911 are provided with limiting notches 96 for limiting and clamping the buckle 99, the buckle 99 is inserted into the buckle hole 98, and the end of the buckle 99 is located in the limiting notch 96, so that the male head 912 and the female head 911 are prevented from falling off.

[0034] The connecting mechanism 9 is provided with multiple groups, the connecting mechanism 9 is arranged side by side, and the male head 912 and the female head 911 on the connecting mechanism 9 can be alternately connected with the connecting head 92, as shown in the figure. Figure 7 As shown, the PV connectors 91 on the adjacent two connecting mechanisms 9 are alternately arranged between the male head 912 and the female head 911, so that the occupied space of the multiple PV connectors 91 arranged side by side can be saved, and more connecting mechanisms 9 can be installed according to actual use requirements.

[0035] One side of the shell 1 is fixed with a side plate 5, the side plate 5 is provided with a cable threading mechanism 8 for threading the cable 6, the cable threading mechanism 8 comprises a U-shaped sleeve 81 made of rubber, a U-shaped slot is formed in the side plate 5, the outer wall of the U-shaped sleeve 81 is provided with a clamping groove 82, and the U-shaped sleeve 81 is sleeved in the U-shaped slot, so that the cable 6 can be threaded and removed from the cable threading mechanism 8, the efficiency of threading the cable 6 is improved, and the toughness of the rubber can protect the surface of the cable 6 from being cut by a hard object.

[0036] The upper surface of the shell 1 is embedded with a display screen 2, and the upper side cover 4 is fixed with the shell 1 through bolts, so that the installation and disassembly of the upper side cover 4 are facilitated, and the display screen 2 can be used to set the parameters of the inverter in real time and visually display the running state of the inverter.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A simple wiring photovoltaic off-grid inverter comprising a housing (1), characterized in that: The inside of the shell (1) is fixed with a support (10), the support (10) divides the inside of the shell (1) into two installation cavities, one of the installation cavities is provided with an inverter mainboard, the other installation cavity is provided with a connecting mechanism (9), the connecting mechanism (9) connects the cable (6) introduced into the inside of the shell (1) with the inverter mainboard, and the connecting mechanism (9) is fixed with the support (10), an upper side cover (4) is arranged above the connecting mechanism (9) and covers the shell (1). The connecting mechanism (9) comprises a connecting head (92) fixed at the end of the cable (6) and a PV connector (91) with a anti-disengagement function, and the two ends of the PV connector (91) are fixed with the support (10) of the connecting head (92).

2. A simple wiring photovoltaic off-grid inverter according to claim 1, characterized in that: The PV connector (91) comprises a male head (912) and a female head (911), the male head (912) is inserted with the female head (911), and the male head (912) and the female head (911) are provided with an anti-disengagement mechanism.

3. A simple wiring photovoltaic off-grid inverter according to claim 2, characterized in that: One end of the male head (912) is provided with a plug column (97), one end of the female head (911) is provided with a plug hole (95) for the plug column (97) to be inserted, and the other end of the male head (912) and the other end of the female head (911) are connected with the connecting head (92) and the support (10) respectively.

4. A simple wiring photovoltaic off-grid inverter according to claim 3, characterized in that: The other end of the male head (912) and the other end of the female head (911) are fixed with a threaded column (94), the threaded column (94) is connected with the support (10) through a fixed nut (93), and the connecting head (92) is provided with a threaded hole for the threaded column (94) to be screwed.

5. A simple wiring photovoltaic off-grid inverter according to claim 4, characterized in that: The support (10) is fixed with an L-shaped plate (11), the L-shaped plate (11) is provided with a through hole for the threaded column (94) to pass through, a fan (7) is arranged below the L-shaped plate (11) of the support (10), and a folding edge (3) is arranged on one side of the L-shaped plate (11) of the support (10).

6. A simple wiring photovoltaic off-grid inverter according to claim 2, characterized in that: The anti-disengagement mechanism comprises buckles (99) arranged on both sides of the plug column (97), one end of the buckle (99) is fixed with one end of the male head (912), the female head (911) is provided with a clamping hole (98) for the buckle (99) to be inserted, and the female head (911) is provided with a limiting gap (96) on both sides for the buckle (99) to be clamped and limited.

7. A simple wiring photovoltaic off-grid inverter according to claim 6, characterized in that: The connecting mechanism (9) is provided with a plurality of groups, the connecting mechanisms (9) are arranged side by side, and the male head (912) and the female head (911) on the connecting mechanism (9) can be alternately connected with the connecting head (92).

8. A simple wiring photovoltaic off-grid inverter according to claim 7, characterized in that: One side of the shell (1) is fixed with a side plate (5), and the side plate (5) is provided with a threading mechanism (8) for the cable (6) to pass through.

9. A simple wiring photovoltaic off-grid inverter according to claim 8, characterized in that: The threading mechanism (8) comprises a U-shaped sleeve (81) made of rubber, the side plate (5) is provided with a U-shaped notch, and the outer wall of the U-shaped sleeve (81) is provided with a clamping groove (82), and the U-shaped sleeve (81) is sleeved in the U-shaped notch.

10. A simple wiring photovoltaic off-grid inverter according to claim 1, characterized in that: The upper surface of the shell (1) is embedded with a display screen (2), and the upper side cover (4) is fixed with the shell (1) through bolts.

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