CN210040768U

CN210040768U - Anti-reverse photovoltaic adapter and photovoltaic string system

Info

Publication number: CN210040768U
Application number: CN201921464606.5U
Authority: CN
Inventors: 陶国均; 邵蒋宁; 徐波; 诸荣耀; 倪晟炜
Original assignee: Zhejiang Astronergy New Energy Development Co Ltd
Current assignee: Zhejiang Astronergy New Energy Development Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-02-07
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a prevent reverse photovoltaic adapter and photovoltaic group cluster system, wherein, should prevent reverse photovoltaic adapter includes public terminal, female terminal and prevents reverse monitoring devices, wherein: the photovoltaic anti-reverse monitoring device is arranged between the female terminal and the male terminal, one end of the photovoltaic anti-reverse monitoring device is electrically communicated with the female terminal, and the other end of the photovoltaic anti-reverse monitoring device is electrically communicated with the male terminal; the anti-reverse monitoring device comprises an anti-reverse component and a current monitoring component which are arranged inside the shell, wherein the anti-reverse component and the current monitoring component are sequentially connected in series, and the current monitoring component can monitor current information in real time. The adapter can be connected between a photovoltaic string and a photovoltaic direct-current combiner box or a string type inverter, so that the current of the whole photovoltaic string is monitored while the current is prevented from flowing backwards and flowing back, the string fault is rapidly diagnosed, and the troubleshooting difficulty of the photovoltaic string is greatly reduced. Meanwhile, the adapter can be directly connected between the male connector and the female connector, and is easy to use and practical.

Description

Anti-reverse photovoltaic adapter and photovoltaic string system

Technical Field

The utility model belongs to the technical field of photovoltaic module anti-reflection technique and specifically relates to an anti-photovoltaic adapter and photovoltaic group cluster system of preventing.

Background

In the photovoltaic power generation field, photovoltaic module generally is through having the cable series connection access photovoltaic direct current collection flow box of public, female connector or group cluster dc-to-ac converter, however, current photovoltaic direct current collection flow box and group cluster dc-to-ac converter do not have real-time supervision current information and prevent the function of electric current backward flow, this has caused certain difficulty to the investigation of photovoltaic system later stage trouble, and maintenance, cost of maintenance are higher.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent reverse photovoltaic adapter for quick diagnosis photovoltaic group cluster system trouble, the power station fortune of being convenient for maintain, prevent reverse photovoltaic adapter includes public terminal, female terminal and prevents reverse monitoring device, wherein:

the photovoltaic anti-reverse monitoring device is arranged between the female terminal and the male terminal, one end of the photovoltaic anti-reverse monitoring device is electrically communicated with the female terminal, and the other end of the photovoltaic anti-reverse monitoring device is electrically communicated with the male terminal;

the anti-reverse monitoring device comprises an anti-reverse component and a current monitoring component which are arranged inside the shell, wherein the anti-reverse component and the current monitoring component are sequentially connected in series, and the current monitoring component can monitor current information in real time.

In a specific implementation, the anti-reflection part is an anti-reflection diode.

In specific implementation, the anti-reverse monitoring device further comprises a current display part, wherein the current monitoring part is provided with a display interface, and the current display part is detachably and electrically communicated with the current monitoring part through the display interface.

In a specific implementation, the current display component includes a display screen and a battery in electrical communication with and operable to power the display screen.

In a specific implementation, the battery is a button battery.

In a specific implementation, the current monitoring component is a hall sensor.

In specific implementation, the male terminal, the female terminal and the shell of the anti-reverse monitoring device are all shells made of PPO materials.

In specific implementation, the plug-in units of the male terminal and the female terminal are all tin-plated copper plug-in units.

The utility model also provides a photovoltaic group cluster system, this system includes prevent reversing the photovoltaic adapter, prevent reversing the photovoltaic adapter and pass through the female terminal reaches public terminal electricity intercommunication is between photovoltaic group cluster and photovoltaic direct current collection flow box or group cluster dc-to-ac converter.

The utility model provides a prevent photovoltaic adapter, including the female terminal of establishing ties in proper order, prevent anti-monitoring devices and male terminal, male terminal and female terminal respectively with photovoltaic cable connector's public, female joint phase-match, prevent anti-monitoring devices including setting up in the inside anti-part and the current monitoring part of preventing of casing, prevent that anti-part and current monitoring part pass through the circuit and establish ties in proper order, but the current information of current monitoring part real-time supervision photovoltaic group cluster. The anti-reverse photovoltaic adapter is connected between the photovoltaic string and the photovoltaic direct-current combiner box or the string type inverter, current of the whole photovoltaic string can be effectively monitored while current backflow and backflow are prevented, string faults can be rapidly diagnosed, and the difficulty in troubleshooting in the later stage of a photovoltaic string system is greatly reduced. Simultaneously, the public terminal and the female terminal of this adapter can link to each other with original public, female joint of photovoltaic group cluster system, and the installation is swift, easily practical.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts. In the drawings:

fig. 1 is a schematic structural diagram of an anti-reflection photovoltaic adapter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an anti-reverse monitoring device according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of the anti-reflection component and the current monitoring component according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.

As shown in fig. 1 and fig. 2, the utility model provides an anti-photovoltaic adapter prevents for quick diagnosis photovoltaic group cluster system trouble, the power station fortune of being convenient for maintain, prevent that photovoltaic adapter includes male terminal 2, female terminal 1 and prevents anti-monitoring devices 3, wherein:

the male terminal 2 and the female terminal 1 are respectively matched with a male connector and a female connector of a photovoltaic cable connector, the photovoltaic anti-reverse monitoring device 3 is arranged between the female terminal 1 and the male terminal 2, one end of the photovoltaic anti-reverse monitoring device is electrically communicated with the female terminal 1, and the other end of the photovoltaic anti-reverse monitoring device is electrically communicated with the male terminal 2;

the anti-reverse monitoring device 3 comprises an anti-reverse component 5 and a current monitoring component 6 which are arranged inside the shell, the anti-reverse component 5 and the current monitoring component 6 are sequentially connected in series, and the current monitoring component 6 can monitor current information in real time.

In a specific implementation, as shown in fig. 2 and 3, the anti-reverse component 5 and the current monitoring component 6 are connected in series inside the anti-reverse monitoring device 3 through a cable 8, one end of the cable 8 is electrically connected to the male terminal 2, and the other end of the cable 8 is electrically connected to the female terminal 1.

In particular implementations, the anti-reflection component 5 can be selected in a variety of embodiments. For example, as shown in fig. 3, the anti-reverse part 5 is an anti-reverse diode because the anti-reverse diode has strong anti-reverse performance and high reliability, thereby effectively avoiding current backflow and backflow.

In a specific implementation, as shown in fig. 1 and fig. 2, in order to enable a service person to quickly view current information when the current monitoring component 6 is in operation, the anti-reverse monitoring device 3 may further include a current display component 7, and further, as shown in fig. 2, the current monitoring component 6 may have a display interface, and the current display component 7 may be detachably and electrically connected to the current monitoring component 6 through the display interface. When the anti-reverse monitoring device 3 of each anti-reverse photovoltaic adapter is overhauled, the current display part 7 is not arranged on each anti-reverse photovoltaic adapter, the current display part 7 is arranged on the outer side of the shell of the anti-reverse monitoring device 3 when the current needs to be checked, and the current monitoring part 6 is connected with the current information through the display interface.

In specific implementation, the current display part 7 can be arranged in various embodiments. For example, as shown in FIG. 2, the current display component 7 may include a display screen 4 and a battery 9, the battery 9 being in electrical communication with the display screen 4 and operable to power the display screen 4. Further, the current display part 7 may be further provided with a button at one side of the display screen 4, thereby facilitating reading of current information.

In particular, the battery 9 may be selected in a variety of embodiments. For example, the battery 9 may be a button battery because the button battery 9 is small and easy to replace.

In specific implementation, the current monitoring part 6 can be selected from various embodiments. For example, since the hall sensor has many advantages of high sensitivity, small size, and the like, in order to reduce the size of the anti-reverse monitoring device 3 and ensure the accuracy of current monitoring, the current monitoring part 6 may be a hall sensor.

In specific implementation, the shell materials of the male terminal 2, the female terminal 1 and the anti-reverse monitoring device 3 can be selected by various implementation schemes. For example, the PPO material has the advantages of high rigidity, high heat resistance, flame retardancy, high strength, excellent electrical performance and the like, and the dielectric constant and the dielectric loss of the PPO material are one of the smallest varieties of engineering plastics, and are hardly affected by temperature and humidity, so the housings of the male terminal 2, the female terminal 1 and the anti-reflection monitoring device 3 may all be PPO material housings.

In specific implementation, the plug-in components of the male terminal 2 and the female terminal 1 can be selected and arranged in various ways. For example, because the tinned copper insert has excellent conductivity, the male terminal 2 and the female terminal 1 can be tinned copper inserts, so that the conductivity of the adapter is effectively improved.

The utility model also provides a photovoltaic group cluster system, this system includes prevent reversing the photovoltaic adapter, prevent reversing the photovoltaic adapter and pass through female terminal 1 reaches 2 electricity of public terminal are communicated between photovoltaic group cluster and photovoltaic direct current collection flow box or group cluster dc-to-ac converter.

To sum up, the utility model provides an anti-photovoltaic adapter that reverses, including female terminal 1, the anti-monitoring device 3 that reverses and male terminal 2 that establish ties in proper order, male terminal 2 and female terminal 1 respectively with photovoltaic cable connector's public, female joint phase-match, prevent that monitoring device 3 prevents including setting up in the inside anti-part 5 and the current monitoring part 6 of preventing of casing, prevent that part 5 and current monitoring part 6 pass through the circuit and establish ties in proper order, but the current information of current monitoring part 6 real-time supervision photovoltaic group cluster. The anti-reverse photovoltaic adapter is connected between the photovoltaic string and the photovoltaic direct-current combiner box or the string type inverter, current of the whole photovoltaic string can be effectively monitored while current backflow and backflow are prevented, string faults can be rapidly diagnosed, and the difficulty in troubleshooting in the later stage of a photovoltaic string system is greatly reduced. Meanwhile, the male terminal 2 and the female terminal 1 of the adapter can be connected with the original male and female connectors of the photovoltaic string system, and the adapter is rapid to install and easy to use.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an anti-photovoltaic adapter, its characterized in that, anti-photovoltaic adapter includes male terminal (2), female terminal (1) and prevents anti-monitoring devices (3), wherein:

the male terminal (2) and the female terminal (1) are respectively matched with a male connector and a female connector of a photovoltaic cable connector, the photovoltaic anti-reverse monitoring device (3) is arranged between the female terminal (1) and the male terminal (2), one end of the photovoltaic anti-reverse monitoring device is electrically communicated with the female terminal (1), and the other end of the photovoltaic anti-reverse monitoring device is electrically communicated with the male terminal (2);

the anti-reverse monitoring device (3) comprises an anti-reverse component (5) and a current monitoring component (6) which are arranged inside the shell, the anti-reverse component (5) and the current monitoring component (6) are sequentially connected in series, and the current monitoring component (6) can monitor current information in real time.

2. An anti-reverse photovoltaic adapter as claimed in claim 1, characterized in that said anti-reverse component (5) is an anti-reverse diode.

3. An anti-reverse photovoltaic adapter according to claim 1, characterized in that said anti-reverse monitoring device (3) further comprises a current display component (7), said current monitoring component (6) having a display interface, said current display component (7) being in detachable electrical communication with said current monitoring component (6) through said display interface.

4. An anti-reverse photovoltaic adapter as claimed in claim 3, characterized in that the current display means (7) comprises a display screen (4) and a battery (9), the battery (9) being in electrical communication with the display screen (4) and being capable of supplying power to the display screen (4).

5. An anti-reverse photovoltaic adapter as claimed in claim 4, characterized in that said battery (9) is a button battery.

6. Anti-reversion photovoltaic adapter according to claim 1, characterized in that said current monitoring means (6) is a hall sensor.

7. An anti-reverse photovoltaic adapter as claimed in claim 1, wherein the male terminal (2), the female terminal (1) and the housing of the anti-reverse monitoring device (3) are all made of PPO material.

8. An anti-reverse photovoltaic adapter as claimed in claim 1, characterized in that the male terminal (2) and the female terminal (1) are both tinned copper plug-ins.

9. A photovoltaic string system, characterized in that it comprises an anti-reverse photovoltaic adapter according to any of claims 1 to 8, said anti-reverse photovoltaic adapter being in electrical communication between a photovoltaic string and a photovoltaic dc combiner box or string inverter through said female (1) and said male (2) terminals.