A photovoltaic inverter terminal wiring connection structure

Abstract

The application provides a photovoltaic inverter terminal wiring connection structure and relates to the field of electrical equipment. The photovoltaic inverter terminal wiring connection structure comprises a body and a connecting end, the connecting end is provided with a connecting pipe at the front end, the connecting pipe is provided with a contact piece at the front end, the body is internally provided with a plurality of interfaces, and the interfaces are internally provided with a linking mechanism and a pre-fixing mechanism at the bottom side. The connecting pipe at the front end of the connecting end and the interfaces of the body can be quickly connected through the linking mechanism and the pre-fixing mechanism, the internal connecting piece can stably connect the connecting piece of the contact piece with the internal contact port, and the installation mode is different from the traditional nut type installation mode. Only the connecting pipe needs to be identified before installation, the corresponding interfaces are installed, the slide bar is fixed at the same time when being pushed in, the contact plate at the bottom is contacted and fixed at the same time, the efficiency of overall connection is improved, the connection steps are reduced, and the use is more convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a terminal wiring connection structure of a photovoltaic inverter. BACKGROUND

[0002] As the interface equipment of the solar power generation system and the power grid, the photovoltaic inverter needs to ensure the heat dissipation performance of the power module of the inverter in addition to ensuring the circuit design and implementation. The heat dissipation performance of the heat generating module in the photovoltaic inverter has an important influence on the working stability, product reliability, service life of power devices and the like of the entire inverter system. The traditional photovoltaic system connects the components in series and parallel, and then generates alternating current through the inverter and is connected to the power grid. Each photovoltaic component works independently, and even if one photovoltaic component cannot work, other photovoltaic components can still send power to the power grid. There is no mismatch loss between photovoltaic components, and the hot spot loss is reduced. It can be made into a modular structure, and it is easy to expand. The system layout is compact and small in size, and standard AC module installation materials can be used, which can greatly reduce the cost of installation materials and system design. The conduction loss is reduced, and the price of the transmission line is also reduced.

[0003] However, the traditional AC component uses a traditional photovoltaic component plus a micro inverter, and uses a bonding or bolt fastening method. The micro inverter is connected to the positive and negative interfaces of the junction box, and then connected to the power grid. Not only does this increase the manufacturing process and cost, but it is also complicated to install and increases the light shielding area. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a terminal wiring connection structure of a photovoltaic inverter, which solves the problem of complicated installation method and increased light shielding area when connecting the terminal of the traditional inverter.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme: a terminal wiring connection structure of a photovoltaic inverter, comprising a body and a connecting end, the connecting end is provided with a connecting pipe at the front end, the connecting pipe is provided with a contact piece at the front end, the body is provided with a plurality of interfaces inside, the interface is provided with a connecting mechanism and a pre-fixing mechanism at the bottom inside;

[0006] The connecting mechanism comprises a groove one, a contact plate and a sliding rod, the sliding rod is fixedly connected inside the groove one, a rotating shaft one is fixedly connected inside the groove one, the contact plate rotates around the rotating shaft one inside the groove one, a contact end is arranged on the side wall of the contact plate, a rotating block one is fixedly connected to the bottom of the contact plate, one end of a rotating rod is rotatably connected inside the rotating block one, a rotating block two is rotatably connected to the other end of the rotating rod, a limiting block is fixedly connected to the outer side wall of the sliding rod, one end of a spring two is fixedly connected to the limiting block, the spring two is fixedly connected to the side wall of the rotating block two, and the rotating block two is slidably connected to the sliding rod.

[0007] Preferably, the connecting end can be connected with the interface through a connecting pipe, the pre-fixing mechanism comprises a connecting piece, a moving block and a limiting spring, the moving block is slidably connected in the connecting piece, a semicircular clasp is fixedly connected to one side of the moving block, and a sliding groove one is arranged at the bottom of the inner side wall of the interface.

[0008] Preferably, connecting rings are connected between the semicircular clasps, the limiting spring is arranged at the outer ring of the connecting piece, a clamping groove is horizontally arranged at the other side of the moving block, and the limiting spring is clamped in the clamping groove.

[0009] Preferably, an inner touch port is arranged at the top of the inner side wall of the interface, the pre-fixing mechanism is arranged outside the inner touch port, and the pre-fixing mechanism is used to reinforce the connection relationship.

[0010] Preferably, a fixing mechanism is arranged at the top wall of the connecting pipe, a sliding groove two and a sliding groove three are arranged at the top of the inner side wall of the interface, and the sliding groove two and the sliding groove three are used to cooperate with the fixing mechanism to be fixed.

[0011] Preferably, the fixing mechanism comprises a sliding strip, a side block and a clamping column, a fixed ring is fixedly connected in the clamping column, one end of a rebounding rope is fixedly connected to the fixed ring, a rotating shaft two is fixedly connected in the clamping column, the rotating shaft two is rotatably connected to the outer side wall of the rotating shaft two, and the other end of the rebounding rope is fixedly connected to the side wall of the clamping plate.

[0012] Preferably, the clamping column can be clamped in the sliding groove three, the sliding strip and the side block can slide in the sliding groove two, the side block is fixedly connected to the front end of the sliding strip, and the clamping column is fixedly connected to the front end of the clamping column.

[0013] Preferably, a recess is arranged at the bottom of the connecting pipe, a sliding groove is arranged in the recess, a contact end is slidably connected in the sliding groove, and one end of a spring one is fixedly connected to the contact end.

[0014] Preferably, a limiting disc is arranged at the outer side wall of the contact end, the other end of the spring one is fixedly connected to the limiting disc, a connecting column is fixedly connected to the bottom end of the contact end, and the connecting column can be attached to the contact end of the side wall of the contact plate.

[0015] Preferably, an electric wire is connected to the rear end of the connecting end, and a display screen is arranged at the top of the device body.

[0016] Working principle: when using the device, the connecting pipe at the front end of the connecting end is inserted into the interface, and the positive and negative relationship of the connecting pipe is noted before connection. When the connecting pipe is slid into the interface, the top slide bar, side block and clamping column slide in the sliding groove two, the side block and clamping column are clamped in the sliding groove three, the clamping plate in the clamping column is deflected by the force of the side wall, the clamping plate is deflected in the groove of the clamping column side wall, so that the connecting pipe can be drawn into the inside, when reaching the sliding groove three, the clamping plate will be ejected and clamped in the sliding groove three, the connecting column at the bottom of the connecting pipe slides in the sliding groove one in the interface, when sliding to the contact plate, the contact plate is deflected around the pivot one, the pivot block one at the bottom of the contact plate drives the pivot block two to slide to the right on the slide bar, so that the spring two is compressed, when the connecting column slides to the reverse slope surface of the contact plate, the connecting column will slide in the sliding groove due to the pressure of the contact end, the limiting disc and the sliding groove are limited, the spring one is compressed under stress, so the connecting column can slide in the sliding groove one, when sliding to the reverse slope surface of the contact plate, the connecting column is attached to the contact end of the side wall of the contact plate after the spring one rebounds, the front end of the contact piece can be clamped into the connecting piece, the semi-arc clamping ring is stressed, the moving block moves to the periphery, the clamping groove on the moving block expands the limiting spring, the side wall of the contact piece is provided with a turning surface, so that the clamping is achieved, the connecting ring rebounds, the semi-arc clamping ring is clamped in the groove, so that the connection is completed.

[0017] The application provides a photovoltaic inverter terminal wiring connection structure.

[0018] The application can quickly connect the connecting pipe at the front end of the connecting end and the interface of the body through the connecting mechanism and the pre-fixing mechanism, the internal connecting piece can stably connect the connecting piece of the contact piece and the inner contact port, which is different from the traditional nut type installation mode, only the connecting pipe needs to be distinguished before installation, the corresponding interface is installed, the slide bar is fixed when being pushed in, and the contact plate at the bottom is contacted and fixed at the same time, the efficiency of overall connection is improved, the connection steps are reduced, and the use is more convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a top view of the application;

[0020] Figure 2 It is a front view of the body of the application;

[0021] Figure 3 It is an interface cross-sectional view of the application;

[0022] Figure 4 It is a contact plate bottom structure schematic view of the application;

[0023] Figure 5 It is a connecting piece three-dimensional structure schematic view of the application;

[0024] Figure 6 The connection piece of the present application is a top view;

[0025] Figure 7 The connection piece of the present application is a top view;

[0026] Figure 8 The connection piece of the present application is a top view;

[0027] Figure 9 The connection piece of the present application is a top view;

[0028] Figure 10 The connection piece of the present application is a top view; Figure 7 The connection piece of the present application is a top view;

[0029] 1, body; 2, display screen; 3, connection end; 4, connection pipe; 5, interface; 6, electric wire; 7, sliding strip; 8, contact piece; 9, inner contact port; 10, connection piece; 11, spring one; 12, sliding groove one; 13, groove one; 14, rotating shaft one; 15, contact plate; 16, rotating block one; 17, rotating rod; 18, rotating block two; 19, limiting block; 20, sliding rod; 21, spring two; 22, clamping groove; 23, limiting spring; 24, moving block; 25, half-arc clamping ring; 26, connecting ring; 27, side block; 28, sliding groove two; 29, sliding groove three; 30, clamping column; 31, fixed ring; 32, rebounding rope; 33, clamping plate; 34, rotating shaft two; 35, connecting column; 36, contact end; 37, sliding groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment:

[0032] Please refer to the drawings in the embodiments of the present application Figure 1 and the drawings in the embodiments of the present application Figure 3 - the drawings in the embodiments of the present application Figure 4 The terminal connection structure of the photovoltaic inverter provided by the embodiments of the present application comprises a body 1 and a connection end 3. The connection end 3 is provided with a connection pipe 4 at the front end. The connection pipe 4 is provided with a contact piece 8 at the front end. The body 1 is internally provided with a plurality of interfaces 5. The connection end 3 is connected with an electric wire 6 at the rear end. The body 1 is provided with a display screen 2 at the top. The interface 5 is internally provided with a connecting mechanism and a pre-fixing mechanism at the bottom side.

[0033] The connecting mechanism comprises a groove 13, a contact plate 15 and a sliding rod 20, the sliding rod 20 is fixedly connected inside the groove 13, the groove 13 is fixedly connected with a rotating shaft 14 inside, the contact plate 15 rotates in the groove 13 with the rotating shaft 14 as the center, the side wall of the contact plate 15 is provided with a contact end, when sliding to the contact plate 15, the contact plate 15 deflects around the rotating shaft 14, the rotating block 16 at the bottom of the contact plate 15 drives the rotating rod 17 to slide to the right on the sliding rod 20, the rotating block 16 at the bottom of the contact plate 15 is fixedly connected with the rotating rod 17, one end of the rotating rod 17 is rotatably connected inside the rotating block 16, so that the spring 21 is compressed, when the connecting column 35 slides to the reverse slope surface of the contact plate 15, the other end of the rotating rod 17 is rotatably connected with the rotating block 18, the outer side wall of the sliding rod 20 is fixedly connected with a limiting block 19, one end of the spring 21 is fixedly connected with the limiting block 19, the spring 21 is fixedly connected to the side wall of the rotating block 18, the rotating block 18 is slidingly connected to the sliding rod 20, the connecting mechanism and the pre-fixing mechanism can quickly connect the connecting pipe at the front end of the connecting end with the interface of the device body, the internal connecting piece can stably connect the connecting piece of the contact piece with the inner contact port, which is different from the traditional nut type installation method, only the positive and negative relationship of the connecting pipe needs to be identified before installation.

[0034] Please refer to the accompanying drawings Figure 5 The connecting end 3 can be connected with the interface 5 through the connecting pipe 4, when the device is used, the connecting pipe 4 at the front end of the connecting end 3 is inserted into the interface 5, attention should be paid to the positive and negative relationship of the connecting pipe 4 before connection, when the connecting pipe 4 is slid into the interface 5, the pre-fixing mechanism comprises a connecting piece 10, a moving block 24 and a limiting spring 23, the front end of the contact piece 8 can be clamped into the connecting piece 10, the semi-arc clasp 25 is stressed, the moving block 24 moves to the four directions, the moving block 24 is slidingly connected inside the connecting piece 10, the semi-arc clasp 25 is fixedly connected to one side of the moving block 24, and the inner side wall of the interface 5 is provided with a sliding groove 12 at the bottom.

[0035] The semi-arc clasp 25 is connected with a connecting ring 26, the limiting spring 23 is arranged at the outer ring of the connecting piece 10, the other side of the moving block 24 is transversely provided with a clamping groove 22, the clamping groove 22 of the moving block 24 stretches the limiting spring 23, the side wall of the contact piece 8 is provided with a turning surface, so as to be clamped, the connecting ring 26 rebounds, the semi-arc clasp 25 is clamped in the groove, so as to complete the connection, and the limiting spring 23 is clamped in the clamping groove 22.

[0036] Please refer to the accompanying drawings Figure 7 - the accompanying drawings Figure 9 The inner side wall of the interface 5 is provided with an inner contact port 9 at the top, the pre-fixing mechanism is arranged outside the inner contact port 9, and the pre-fixing mechanism is used to reinforce the connection relationship.

[0037] The top wall of the connector 4 is provided with a fixing mechanism, the inner side wall of the interface 5 is provided with a sliding groove two 28 and a sliding groove three 29, when reaching the sliding groove three 29, the clamping plate 33 will pop out and be clamped in the sliding groove three 29, the connecting column 35 at the bottom of the connector 4 slides in the sliding groove one 12 in the interface 5, and the sliding groove two 28 and the sliding groove three 29 are used to cooperate with the fixing mechanism to be fixed.

[0038] The fixing mechanism comprises a sliding strip 7, a side block 27 and a clamping column 30, the clamping column 30 is fixedly connected with a fixed ring 31 inside, one end of the fixed ring 31 is fixedly connected with a rebounding rope 32, the clamping column 30 is fixedly connected with a rotating shaft two 34 inside, the clamping plate 33 in the clamping column 30 is deflected by the force of the side wall, the clamping plate 33 is deflected around the rotating shaft two 34, the rebounding rope 32 has rebounding elasticity, the rotating shaft two 34 is rotatably connected to the outer side wall of the rotating shaft two 34, and the other end of the rebounding rope 32 is fixedly connected to the side wall of the clamping plate 33, and the clamping plate 33 can be deflected in the groove in the side wall of the clamping column 30, so that the connector 4 can be drawn into the inside.

[0039] The clamping column 30 can be clamped in the sliding groove three 29, the sliding strip 7, the side block 27 and the clamping column 30 at the top slide in the sliding groove two 28, the side block 27 and the clamping column 30 can be clamped in the sliding groove three 29, the sliding strip 7 and the side block 27 can slide in the sliding groove two 28, the side block 27 is fixedly connected to the front end of the sliding strip 7, and the clamping column 30 is fixedly connected to the front end of the clamping column 30.

[0040] Please refer to the accompanying drawings Figure 10 The bottom of the connector 4 is provided with a recess, and the recess is provided with a sliding groove 37, the sliding groove 37 is slidably connected with a contact end 36 inside, and the connecting column 35 can slide in the sliding groove 37 due to the contact of the pressure contact end 36, the limiting disc and the sliding groove 37 are limited, the spring one 11 is compressed under stress, and one end of the contact end 36 is fixedly connected with the spring one 11.

[0041] The outer side wall of the contact end 36 is provided with a limiting disc, the other end of the spring one 11 is fixedly connected to the limiting disc, the bottom end of the contact end 36 is fixedly connected with the connecting column 35, so that the connecting column 35 can slide in the sliding groove one 12, when sliding to the reverse slope surface of the contact plate 15, the spring one 11 rebounds, the connecting column 35 is attached to the contact end of the side wall of the contact plate 15, the connecting column 35 can be attached to the contact end of the side wall of the contact plate 15, and the corresponding interface is installed, the sliding strip can be fixed when being pushed in, the contact plate at the bottom is contacted and fixed at the same time, the efficiency of the overall connection is improved, the connection steps are reduced, and the use is more convenient and fast.

[0042] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic inverter terminal connection connection structure comprising a body (1) and a connection end (3), characterized in that, The connecting end (3) is provided with a connecting pipe (4) at the front end, the connecting pipe (4) is provided with a contact piece (8) at the front end, the body (1) is internally provided with a plurality of interfaces (5), and the interface (5) is internally provided with a connecting mechanism and a pre-fixing mechanism at the bottom side. The connecting mechanism comprises a groove one (13), a contact plate (15) and a sliding rod (20), the sliding rod (20) is fixedly connected in the groove one (13), the groove one (13) is internally fixedly connected with a rotating shaft one (14), the contact plate (15) is rotatable in the groove one (13) with the rotating shaft one (14) as the center, the side wall of the contact plate (15) is provided with a contact end, the bottom of the contact plate (15) is fixedly connected with a rotating block one (16), one end of a rotating rod (17) is rotatably connected in the rotating block one (16), the other end of the rotating rod (17) is rotatably connected with a rotating block two (18), the outer side wall of the sliding rod (20) is fixedly connected with a limiting block (19), one end of a spring two (21) is fixedly connected with the limiting block (19), the spring two (21) is fixedly connected with the side wall of the rotating block two (18), and the rotating block two (18) is slidably connected with the sliding rod (20). The connecting end (3) can be connected with the interface (5) through the connecting pipe (4), the pre-fixing mechanism comprises a connecting piece (10), a moving block (24) and a limiting spring (23), the moving block (24) is slidably connected in the connecting piece (10), one side of the moving block (24) is fixedly connected with a semicircular clasp (25), and the inner side wall bottom of the interface (5) is provided with a sliding groove one (12). The top wall of the connecting pipe (4) is provided with a fixing mechanism, the inner side wall top of the interface (5) is provided with a sliding groove two (28) and a sliding groove three (29), and the sliding groove two (28) and the sliding groove three (29) are used to cooperate with the fixing mechanism to be fixed. The fixing mechanism comprises a sliding strip (7), a side block (27) and a clamping column (30), the clamping column (30) is internally fixedly connected with a fixed ring (31), one end of a rebounding rope (32) is fixedly connected with the fixed ring (31), the clamping column (30) is internally fixedly connected with a rotating shaft two (34), the rotating shaft two (34) is rotatably connected with the outer side wall of the rotating shaft two (34), and the other end of the rebounding rope (32) is fixedly connected with the side wall of a clamping plate (33).

2. A photovoltaic inverter terminal connection structure according to claim 1, characterized in that The semicircular clasp (25) is connected with a connecting ring (26), the limiting spring (23) is arranged at the outer ring of the connecting piece (10), the other side of the moving block (24) is transversely provided with a clamping groove (22), and the limiting spring (23) is clamped in the clamping groove (22).

3. A photovoltaic inverter terminal connection structure according to claim 1, characterized in that The inner side wall top of the interface (5) is provided with an inner contact port (9), the pre-fixing mechanism is arranged outside the inner contact port (9), and the pre-fixing mechanism is used to reinforce the connection relationship.

4. A photovoltaic inverter terminal connection structure according to claim 1, characterized in that, The clamping column (30) can be clamped in the sliding groove three (29), the sliding strip (7) and the side block (27) can be slidably arranged in the sliding groove two (28), the side block (27) is fixedly connected with the front end of the sliding strip (7), and the clamping column (30) is fixedly connected with the front end of the clamping column (30).

5. A photovoltaic inverter terminal connection structure according to claim 1, characterized in that, The connecting pipe (4) is provided with a recess hole at the bottom, a sliding groove (37) is arranged in the recess hole, a contact end (36) is slidably connected in the sliding groove (37), and one end of a spring (11) is fixedly connected to the contact end (36).

6. A photovoltaic inverter terminal connection structure according to claim 5, characterized in that A limiting disc is arranged on the outer side wall of the contact end (36), the other end of the spring (11) is fixedly connected to the limiting disc, a connecting column (35) is fixedly connected to the bottom end of the contact end (36), and the connecting column (35) can be attached to the contact end of the side wall of the contact plate (15).

7. A photovoltaic inverter terminal connection structure according to claim 1, characterized in that, The connecting end (3) is connected with an electric wire (6) at the rear end, and the device body (1) is provided with a display screen (2) at the top.

Images