CN219067324U

CN219067324U - Photovoltaic connector and photovoltaic system

Info

Publication number: CN219067324U
Application number: CN202320019556.XU
Authority: CN
Inventors: 黄少峰; 王涛; 黄敏; 方刚; 向军
Original assignee: Goodwe Technologies Co Ltd
Current assignee: Goodwe Technologies Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-23
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses a photovoltaic connector and a photovoltaic system, wherein the photovoltaic connector comprises an anode connector and a cathode connector, the anode connector is provided with a first accommodating cavity, the cathode connector is provided with a second accommodating cavity, and the outer side of the first accommodating cavity and the outer side of the second accommodating cavity are connected with elastic buckles for being clamped with the side wall of a box body of an inverter. Above-mentioned photovoltaic connector can be with anodal connector and negative pole connector and the accurate quick connection of dc-to-ac converter easily through the elasticity buckle, does not need outside appurtenance to install, and the installation is simple swift.

Description

Photovoltaic connector and photovoltaic system

Technical Field

The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic connector. In addition, the utility model also relates to a photovoltaic system comprising the photovoltaic connector.

Background

The photovoltaic connector is widely applied to direct current loop connection in a photovoltaic system as a connecting component among components, a combiner box, an inverter and the like in the photovoltaic power generation system. The photovoltaic connectors used for connection between the inverter and the photovoltaic module comprise a PV+ connector 02 and a PV-connector 03.

As shown in fig. 1 to 3, the existing photovoltaic connector is sleeved with a plastic nut, and the connector is fixedly connected with the box body through a hexagonal nut 01. Correspondingly, a tool is needed to be firstly arranged outside the box body to limit, and the hexagon nut 01 is rotationally fixed inside the box body, so that the connector is fixed.

Under this kind of connected mode, the trompil size of box is unanimous, can't distinguish PV+ connector 02 and PV-connector 03's connecting hole 04, and easy makeing mistakes when the manual work is assembled and is installed, and box internal installation fixation nut dismantles inconveniently, can't install the connector in place fast accurately.

In summary, how to provide a photovoltaic connector capable of being installed quickly and accurately is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide a photovoltaic connector, which can easily and accurately install the positive and negative connectors and the inverter, and which does not require other auxiliary tools, thereby reducing the error rate. Another object of the present utility model is to provide a photovoltaic system comprising the photovoltaic connector described above.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a photovoltaic connector, includes positive electrode connector and negative electrode connector, positive electrode connector has first accommodation chamber, negative electrode connector has the second accommodation chamber, the outside in first accommodation chamber with the outside in second accommodation chamber all is connected with the elasticity buckle for with the box lateral wall joint of dc-to-ac converter.

Preferably, a first key position is connected to the inner wall of the first accommodating cavity, a second key position is connected to the inner wall of the second accommodating cavity, and the first key position and the second key position are both used for being spliced with the side wall of the box body of the inverter;

in the mounted state, a height difference exists between the axis of the first key position and the axis of the second key position.

Preferably, the two elastic buckles are symmetrically arranged along the axis of the first accommodating cavity;

or, the two elastic buckles are symmetrically arranged along the axis of the second accommodating cavity.

Preferably, the elastic buckle includes a connecting portion and a clamping portion, and extends along a length direction of the connecting portion and is inclined upward to form the hook-shaped clamping portion.

Preferably, the outer side of the first accommodating cavity and the outer side of the second accommodating cavity are sleeved with sealing elements, and the sealing elements can be used for being abutted with the inverter to realize sealing.

Preferably, the elastic buckle further comprises a buckle sleeve, wherein the buckle sleeve is provided with an inner hole, and the inner hole is in clamping connection with the elastic buckle.

The utility model also provides a photovoltaic system which comprises an inverter, a photovoltaic module and the photovoltaic connector, wherein the inverter and the photovoltaic module are connected with the photovoltaic connector.

Preferably, two buckle guide grooves are formed in the side wall of the box body of the inverter, and the elastic buckle penetrates through the buckle guide grooves and then is clamped with the side wall of the box body of the inverter.

Preferably, the slot body of the buckle guiding slot is provided with a plurality of key holes for fixedly connecting with the first key position or the second key position.

The photovoltaic connector comprises an anode connector and a cathode connector, wherein the anode connector is provided with a first accommodating cavity, the cathode connector is provided with a second accommodating cavity, the outer side of the first accommodating cavity and the outer side of the second accommodating cavity are respectively connected with an elastic buckle for being clamped with the side wall of the box body of the inverter, and current transmission connection can be realized; the connector can be quickly and accurately connected with the inverter through the elastic buckle without other auxiliary tools, so that the installation steps are simplified, and the method is simple and quick.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a prior art photovoltaic connector;

FIG. 2 is a schematic view of a prior art installation of a photovoltaic connector;

FIG. 3 is a schematic view of a prior art photovoltaic connector in its installed position;

fig. 4 is a schematic structural diagram of a photovoltaic connector according to the present utility model;

FIG. 5 is a schematic view of a photovoltaic connector according to the present utility model;

fig. 6 is a diagram of an assembly process between the photovoltaic connector, the snap-on sleeve and the inverter provided by the utility model;

fig. 7 is a schematic installation diagram of the photovoltaic connector, the snap-on sleeve and the inverter provided by the utility model;

fig. 8 is a schematic diagram of a box structure of an inverter according to the present utility model;

fig. 9 is a front view of a case of the inverter provided by the present utility model.

In fig. 1 to 9, reference numerals include:

hexagonal nut 01, pv+ connector 02, PV-connector 03, connection hole 04;

the positive electrode connector 1, the negative electrode connector 2, the elastic buckle 3, the inverter 4, the buckling sleeve 5 and the sealing piece 6;

the first accommodation chamber 11, the first key position 12, the second accommodation chamber 21, the second key position 22, the connecting portion 31, the clamping portion 32, the buckle guide groove 41 and the key position hole 42.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The core of the utility model is to provide a photovoltaic connector, which can easily and accurately and rapidly install the positive electrode connector 1, the negative electrode connector 2 and the inverter 4 without other auxiliary tools, and has simple and rapid installation and reduced error rate. Another core of the present utility model is to provide a photovoltaic system comprising the photovoltaic connector described above.

The photovoltaic connector provided by the utility model comprises the positive electrode connector 1 and the negative electrode connector 2, wherein the positive electrode connector 1 and the negative electrode connector 2 can be correspondingly connected with positive and negative electrode connecting parts of the inverter 4 so as to realize current transmission and transportation between the positive and negative electrode connecting parts. Referring to fig. 4, fig. 4 is a schematic structural diagram of the photovoltaic connector.

The positive electrode connector 1 is provided with a first accommodating cavity 11, the negative electrode connector 2 is provided with a second accommodating cavity 21, and the outer side of the first accommodating cavity 11 and the outer side of the second accommodating cavity 21 are both connected with elastic buckles 3 for being clamped with the side wall of the box body of the inverter 4.

The outer side of the first accommodating cavity 11 and the outer side of the second accommodating cavity 21 are connected with the elastic buckle 3, the elastic buckle 3 is an elastic piece, and can extend into the inverter 4 to be clamped and fixed with the inverter by utilizing elastic force, and can also move out of the inverter 4 to release the clamping relationship of the two. When the installation between the connector and the inverter 4 is carried out, other auxiliary components are not needed, the internal space of the inverter 4 is not occupied, the connector and the inverter can be simply, conveniently and quickly connected in place through the elastic force of the elastic buckle 3, the installation steps are simplified, and the installation efficiency is improved.

Optionally, a plurality of elastic buckles 3 can be provided to ensure the stability of the clamping connection.

According to the photovoltaic connector, the positive electrode connector 1 and the negative electrode connector 2 can be easily connected with the inverter 4 accurately and quickly through the elastic buckle 3, an external auxiliary tool is not required for installation, the installation step is simplified, and the photovoltaic connector is simple and quick.

On the basis of the embodiment, the inner wall of the first accommodating cavity 11 is connected with the first key position 12, the inner wall of the second accommodating cavity 21 is connected with the second key position 22, and the first key position 12 and the second key position 22 are both used for being spliced with the side wall of the box body of the inverter 4;

in the mounted state, there is a height difference between the axis of the first key 12 and the axis of the second key 22.

The positive electrode connector 1 has a first accommodating cavity 11 and a first key position 12 connected with the inner wall of the first accommodating cavity 11, the negative electrode connector 2 has a second accommodating cavity 21 and a second key position 22 connected with the inner wall of the second accommodating cavity 21, and the first key position 12 and the second key position 22 are used for being spliced with the side wall of the box body of the inverter 4.

The first key position 12 and the second key position 22 are columnar bulges extending along the outer side of the accommodating cavity, and can be clamped and fixed or welded and fixed with the inverter 4, and the specific conditions can be combined with the actual use conditions.

In the mounted state, there is a height difference between the axis of the first key 12 and the axis of the second key 22. I.e. the first key 12 and the second key 22 are arranged at different positions on the connector, e.g. the first key 12 is arranged at the uppermost end of the end face of the first accommodating cavity 11, and the second key 22 is arranged at any position except the uppermost end on the end face of the second accommodating cavity 21. The positive connector 1 and the negative connector 2 can be easily distinguished before installation, so that the problem of assembly errors in complex photovoltaic circuit connection is avoided, the connectors and the inverter 4 can be accurately and rapidly installed, the error rate is reduced, the installation efficiency is improved, and the process cost is reduced.

Alternatively, the first key 12 and the second key 22 may be different in shape, color, to further distinguish the connectors.

The photovoltaic connector comprises a positive electrode connector 1 and a negative electrode connector 2, wherein the positive electrode connector 1 is provided with a first accommodating cavity 11 and a first key position 12 connected with the inner wall of the first accommodating cavity 11, the negative electrode connector 2 is provided with a second accommodating cavity 21 and a second key position 22 connected with the inner wall of the second accommodating cavity 21, and the first key position 12 and the second key position 22 are connected with the inverter 4 so as to realize transmission connection of current; in the installation state, the axes of the first key positions 12 and the axes of the second key positions 22 are provided with height differences, the types of the connectors are determined according to the key positions at different positions, the positive electrode connector 1 and the negative electrode connector 2 can be easily distinguished, foolproof is facilitated, the problem of assembly errors in complex photovoltaic circuit connection is avoided, the connectors and the inverter 4 can be accurately and quickly installed through the elastic buckle 3, and the error rate is reduced.

On the basis of any of the above embodiments, the two elastic buckles 3 are symmetrically arranged along the axis of the first accommodating cavity 11; or, the two elastic buckles 3 are symmetrically arranged along the axis of the second accommodating cavity 21.

As shown in fig. 4, two elastic buckles 3 are respectively arranged on the positive connector 1 and the negative connector 2 to realize clamping and fixing with the inverter 4. The two elastic buckles 3 are symmetrically arranged about the axis of the accommodating cavity to ensure the mounting stability and reliability. When the electric power inverter is installed, the two elastic buckles 3 extend into the box body of the electric power inverter 4 under the action of elastic force to be clamped with the side walls of the box body, so that the connection between the connector and the electric power inverter 4 is realized.

On the basis of any of the above embodiments, the elastic buckle 3 includes the connecting portion 31 and the engaging portion 32, and extends in the length direction of the connecting portion 31 and is inclined upward to form the hook-shaped engaging portion 32.

Referring to fig. 4 and 5, the connecting portion 31 and the clamping portion 32 are integrally formed. When the connector is mounted, after the first key 12 and the second key 22 are connected with the inverter 4, the clamping part 32 is correspondingly clamped with the side wall of the box body of the inverter 4 so as to realize the clamping and fixing of the connector and the inverter 4.

On the basis of any of the above embodiments, the outside of the first accommodating cavity 11 and the outside of the second accommodating cavity 21 are both sleeved with the sealing member 6, and the sealing member 6 can be used for abutting against the inverter 4 to realize sealing.

The sealing piece 6 is sleeved on the outer side of the first accommodating cavity 11 or the outer side of the second accommodating cavity 21, and when the connector is connected with the inverter 4, the sealing piece 6 is tightly pressed on the outer side of the box body of the inverter 4, so that the mutual sealing between the connector and the inverter 4 is realized, the connector can be prevented from being damaged by sunlight irradiation or liquid entering a gap between the connector and the inverter, the service life of the connector is influenced, and the use safety of the connector is ensured.

Alternatively, the sealing member 6 may be a sealing rubber ring or a guide ring.

On the basis of any of the above embodiments, the photovoltaic connector further includes a buckle sleeve 5, where the buckle sleeve 5 has an inner hole, and the inner hole is clamped with the elastic buckle 3.

Referring to fig. 6 and 7, the case of the inverter 4 may have a uniform or non-uniform thickness, such as a die-cast case and a sheet metal case. On sheet metal component box, the stroke of the 3 joints of elasticity buckle is longer, is unfavorable for the stability of joint, on the basis of above-mentioned elasticity buckle 3, increase the buckle cover 5 rather than the joint to improve the suitability and the joint steadiness of this connector. After the elastic buckle 3 stretches into the box body, the buckle sleeve 5 is clamped with the clamping part 32 of the elastic buckle 3, so that the stability and reliability of the clamping are ensured.

Optionally, the shape of the inner hole is not required, and a clamping relationship can be formed.

The photovoltaic connector has foolproof and waterproof design, can be quickly and accurately fixedly installed with the inverter 4, avoids the problem of assembly errors in complex photovoltaic circuit connection, reduces the error rate, improves the installation efficiency and reduces the process cost.

The utility model also provides a photovoltaic system, which comprises an inverter 4, a photovoltaic module and the photovoltaic connector in the embodiment, wherein the inverter 4 and the photovoltaic module are connected with the photovoltaic connector.

The transmission of electric energy in the photovoltaic system can be realized through the cooperation of the photovoltaic connectors and the cables, and the inverter 4 and the photovoltaic module are connected with the photovoltaic connectors so as to realize that the electric energy of the photovoltaic module is collected and then enters the inverter 4, and the current is transmitted through the connectors.

On the basis of the above embodiment, two fastening guide grooves 41 are formed in the side wall of the case of the inverter 4, and the elastic fastening 3 passes through the fastening guide grooves 41 and is then fastened to the side wall of the case of the inverter 4.

The buckle guide groove 41 penetrates through the side wall of the box body, and the shape and the size of the buckle guide groove correspond to those of the elastic buckle 3. Referring to fig. 8 and 9, the longest side length of the buckle guiding slot 41 is not smaller than the distance between the two elastic buckles 3, so as to facilitate the installation and matching of the elastic buckles 3 and the box body. After passing through the buckle guide groove 41, the elastic buckle 3 can be clamped with the side wall of the box body of the inverter 4, an auxiliary tool is not required to be used in the box body, and the installation is simple, quick, rapid and accurate.

On the basis of any of the above embodiments, the slot body of the buckle guiding slot 41 is provided with a plurality of key holes 42 for fixedly connecting with the first key 12 or the second key 22.

The positions and the shapes of the key holes 42 are corresponding to the first key 12 and the second key 22, so that the key holes 42 corresponding to the first key 12 and the second key 22 can be easily distinguished, and the error in the installation process is reduced by matching with the foolproof design of the key on the connector, so that the installation is fast and accurate.

Referring to fig. 8 and 9, there are two key holes 42 for fixing with the first key 12, and there are two key holes 42 for fixing with the second key 22, so that the connector can be assembled in the normal or reverse direction according to the situation.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The photovoltaic connector and the photovoltaic system provided by the utility model are described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. The utility model provides a photovoltaic connector, includes positive electrode connector (1) and negative electrode connector (2), its characterized in that, positive electrode connector (1) have first accommodation chamber (11), negative electrode connector (2) have second accommodation chamber (21), the outside in first accommodation chamber (11) with the outside in second accommodation chamber (21) all is connected with elasticity buckle (3) for with the box lateral wall joint of dc-to-ac converter (4).

2. The photovoltaic connector according to claim 1, characterized in that the inner wall of the first accommodation cavity (11) is connected with a first key position (12), the inner wall of the second accommodation cavity (21) is connected with a second key position (22), and the first key position (12) and the second key position (22) are both used for being spliced with the side wall of the box body of the inverter (4);

in the mounted state, there is a height difference between the axis of the first key (12) and the axis of the second key (22).

3. The photovoltaic connector according to claim 2, characterized in that two of said elastic catches (3) are symmetrically arranged along the axis of said first housing cavity (11);

or, the two elastic buckles (3) are symmetrically arranged along the axis of the second accommodating cavity (21).

4. A photovoltaic connector according to claim 3, characterized in that the elastic clasp (3) comprises a connecting portion (31) and a clamping portion (32), extending in the length direction of the connecting portion (31) and sloping upwards to form the hooked clamping portion (32).

5. The photovoltaic connector according to claim 4, characterized in that the outside of the first accommodation cavity (11) and the outside of the second accommodation cavity (21) are both sleeved with a sealing member (6), which sealing member (6) is available for abutment with the inverter (4) for sealing.

6. The photovoltaic connector according to any of claims 2 to 5, further comprising a snap sleeve (5), the snap sleeve (5) having an inner bore, the inner bore being snapped with the elastic snap (3).

7. A photovoltaic system comprising an inverter (4), a photovoltaic module and a photovoltaic connector according to any one of claims 1 to 6, the inverter (4) and the photovoltaic module being connected to the photovoltaic connector.

8. The photovoltaic system according to claim 7, wherein two fastening guide grooves (41) are formed in the side wall of the box body of the inverter (4), and the elastic fastening (3) is fastened to the side wall of the box body of the inverter (4) after passing through the fastening guide grooves (41).

9. The photovoltaic system according to claim 8, characterized in that the groove body of the buckle guiding groove (41) is provided with a plurality of key holes (42) for fixedly connecting with the first key (12) or the second key (22).