CN116315777A - Photovoltaic connector device, photovoltaic system and temperature detection method - Google Patents

Photovoltaic connector device, photovoltaic system and temperature detection method Download PDF

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Publication number
CN116315777A
CN116315777A CN202310217271.1A CN202310217271A CN116315777A CN 116315777 A CN116315777 A CN 116315777A CN 202310217271 A CN202310217271 A CN 202310217271A CN 116315777 A CN116315777 A CN 116315777A
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CN
China
Prior art keywords
temperature
photovoltaic
photovoltaic connector
cable
pin
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Pending
Application number
CN202310217271.1A
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Chinese (zh)
Inventor
徐安安
路政
汪昌友
张兵
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Sungrow Power Supply Co Ltd
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Sungrow Power Supply Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sungrow Power Supply Co Ltd filed Critical Sungrow Power Supply Co Ltd
Priority to CN202310217271.1A priority Critical patent/CN116315777A/en
Publication of CN116315777A publication Critical patent/CN116315777A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The application discloses photovoltaic connector, photovoltaic system and temperature detection method, include: a photovoltaic connector, a temperature conduction component and a temperature detection component; the photovoltaic connector comprises a shell and a contact pin, and one end of the contact pin is connected with the photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar; the temperature conduction component is arranged on a cable or a copper bar connected with the contact pin and used for leading out heat of the contact pin; and the temperature detection component is used for detecting the temperature of the temperature conduction component to obtain the temperature of the photovoltaic connector. By arranging the temperature conduction components, the temperature of the contact pins is obtained at intervals, the structure of the photovoltaic connector is not required to be changed, and the cost is saved.

Description

Photovoltaic connector device, photovoltaic system and temperature detection method
Technical Field
The application relates to the technical field of photovoltaic power generation, in particular to a photovoltaic connector device, a photovoltaic system and a temperature detection method.
Background
Currently, the dc side of a photovoltaic system includes a number of photovoltaic modules PV, between which the connection needs to be made by cables, but the PV needs to be connected by connectors.
The connector generally comprises two terminals, namely a wire end and a board end, wherein the two terminals are internally connected through a male pin and a female pin, the terminals adopted at present have no temperature detection function, when the joint of the male pin and the female pin is not contacted in place or the contact position of a cable connected to the pin and the pin is not pressed, the impedance of the contact position is increased, the terminals can continuously generate heat in the use process, and the terminals are burnt out due to the fact that the terminals are plastic due to the fact that the terminals are heated seriously, and even the photovoltaic device is possibly burnt out.
Disclosure of Invention
In view of the above, the present application provides a photovoltaic connector device, a photovoltaic system, and a temperature detection method, which can detect the temperature of a connector so that protection measures can be taken in time when the temperature is high.
The application provides a photovoltaic connector device, comprising: a photovoltaic connector, a temperature conduction component and a temperature detection component;
the photovoltaic connector comprises a shell and a contact pin, and one end of the contact pin is connected with the photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
the temperature conduction component is arranged on a cable or a copper bar connected with the contact pin and used for leading out heat of the contact pin;
and the temperature detection component is used for detecting the temperature of the temperature conduction component to obtain the temperature of the photovoltaic connector.
Preferably, the pin includes: a male pin and a female pin;
the male pin is used for being connected with the photovoltaic module through a cable, and the female pin is used for being connected with the inverter through a cable or a copper bar; or, the male pin is used for connecting the inverter through a cable or the same strip, and the female pin is used for connecting the photovoltaic module through the cable;
the temperature conduction component is arranged on one side of the female pin or one side of the male pin.
Preferably, the temperature conduction member is an OT terminal.
Preferably, the temperature detecting means is for detecting the temperature of the OT terminal to obtain the temperature of the photovoltaic connector.
Preferably, the OT terminal directs temperature to the PCB solder terminal;
and a temperature detection part for detecting the temperature of the PCB welding terminal to obtain the temperature of the photovoltaic connector.
Preferably, the PCB welding terminal is connected with the copper sheet of the PCB circuit board;
the temperature detection component is particularly used for detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
Preferably, the method further comprises: a controller;
the controller is used for alarming and reducing the input power of the inverter when the temperature of the photovoltaic connector is larger than the first preset temperature and smaller than or equal to the second preset temperature; and when the temperature of the photovoltaic connector is higher than a second preset temperature, controlling the inverter to stop working.
The present application also provides a photovoltaic system comprising: an inverter and the photovoltaic connector device described above;
the photovoltaic connector in the photovoltaic connector device is used for connecting a plurality of photovoltaic modules in series together at the input end of the inverter.
Preferably, the inverter comprises a PCB circuit board inside, and the PCB welding terminals are connected with copper sheets of the PCB circuit board;
the temperature detection component is particularly used for detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
The application also provides a temperature detection method of the photovoltaic connector, wherein the photovoltaic connector comprises a shell and a contact pin, and one end of the contact pin is connected with the photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
the heat of the contact pin is led out by a temperature conduction component arranged on a cable or a copper bar connected with the contact pin;
the temperature of the temperature conduction member is detected to obtain the temperature of the photovoltaic connector.
Preferably, the heat of the pins is conducted out by using a temperature conduction component arranged on a cable or a copper bar connected with the pins, and the method specifically comprises the following steps:
the heat of the pins is conducted away by means of OT terminals provided on the cables or copper bars to which the pins are connected.
Preferably, the OT terminal provided on the cable or copper bar to which the pins are connected is used to conduct out the heat of the pins, specifically including:
the OT terminal is connected with the PCB welding terminal, and the PCB welding terminal is connected with the copper sheet of the PCB circuit board;
and detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
Preferably, the method further comprises:
when the temperature of the photovoltaic connector is larger than the first preset temperature and smaller than or equal to the second preset temperature, alarming is conducted, and the input power of the inverter is reduced; and when the temperature of the photovoltaic connector is higher than a second preset temperature, controlling the inverter to stop working.
From this, this application has following beneficial effect:
the photovoltaic connector device that this application provided, through setting up temperature conduction part, the interval obtains the temperature of contact pin, and when the temperature of detection was higher, the explanation probably has the connection problem, can report to the police, or takes other measures, avoids long-time high temperature, causes more serious trouble. The structure of the photovoltaic connector does not need to be changed, so that the photovoltaic connector can be applied to the existing photovoltaic connector, and the cost is saved.
Drawings
Fig. 1 is a schematic view of a photovoltaic connector device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of another photovoltaic connector apparatus provided in an embodiment of the present application;
FIG. 3 is a schematic view of yet another photovoltaic connector apparatus provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a photovoltaic system according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a temperature detection method of a photovoltaic connector according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures and detailed description are described in further detail below.
Because the photovoltaic group string in the photovoltaic system comprises a plurality of photovoltaic modules, the photovoltaic modules are required to be connected together through the photovoltaic connectors to form the photovoltaic group string, and the photovoltaic group string is connected to the input end of the inverter.
When the photovoltaic string actually works, due to higher voltage, when the contact pin in the photovoltaic connector is not contacted in place, or the contact position of the cable and the contact pin is not pressed, the cable can generate heat after a long time, and the terminal can be burnt. The housing of the photovoltaic connector is typically plastic and is therefore prone to fire.
According to the photovoltaic connector device, the temperature of the photovoltaic connector can be detected on the basis that the structure of the photovoltaic connector body is not changed, so that protective measures can be taken in time when the temperature is high.
Referring to fig. 1, a schematic view of a photovoltaic connector device according to an embodiment of the present application is shown.
The photovoltaic connector device provided in this embodiment includes: a photovoltaic connector 100, a temperature conduction member 200, and a temperature detection member 300;
the photovoltaic connector 100 includes a housing and a pin, one end of which is connected to the photovoltaic module by a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
the temperature conduction component 200 is arranged on a cable or a copper bar connected with the contact pin and is used for guiding out heat of the contact pin;
the embodiment of the present application is not particularly limited to a specific implementation form of the temperature conduction component 200, and any component that can conduct heat rapidly may be used, for example, an OT terminal may be disposed on the cable, and heat of the pin is led out, that is, the temperature on the OT terminal may represent the temperature of the pin. Therefore, the temperature of the OT terminal is collected, whether the contact pin is overheated or not can be known, and whether triggering protection is needed or not is judged.
A temperature detecting part 300 for detecting the temperature of the temperature conducting part 200 to obtain the temperature of the photovoltaic connector 100.
According to the photovoltaic connector device, the temperature of the contact pins is obtained at intervals by arranging the temperature conduction components, when the detected temperature is higher, connection problems possibly exist, an alarm can be given, or other measures are taken, so that the situation that the temperature is too high for a long time to cause more serious faults is avoided. The structure of the photovoltaic connector does not need to be changed, so that the photovoltaic connector can be applied to the existing photovoltaic connector, and the cost is saved.
A specific temperature acquisition method will be described below by taking the temperature conduction component as an OT terminal as an example.
Referring to fig. 2, a schematic view of another photovoltaic connector apparatus according to an embodiment of the present application is shown.
The photovoltaic connector device provided in this embodiment, the contact pin 103 includes: a male pin and a female pin; it should be understood that the photovoltaic module may be connected to the male pin, the inverter may be connected to the female pin, or vice versa, the male pin may be connected to the inverter, and the female pin may be connected to the photovoltaic module. Namely, the male pin is used for connecting the photovoltaic module through a cable, and the female pin is used for connecting the inverter through a cable or a copper bar; or, the male pin is used for connecting the inverter through a cable or the same strip, and the female pin is used for connecting the photovoltaic module through the cable; the temperature conduction component is arranged on one side of the female pin or one side of the male pin.
In fig. 2, only one of the pin connections is shown, wherein the outer portion of the pin 103 is a housing 104, and the housing 104 is generally made of plastic.
The male pin is used for being connected with the photovoltaic module through a cable 102, and the female pin is used for being connected with the inverter through a cable;
the temperature conductive member is disposed on the cable 102 to which the female pin is connected.
The temperature conduction member is the OT terminal 200.
And a temperature detecting part for detecting the temperature of the OT terminal 200 to obtain the temperature of the photovoltaic connector.
Because the male pin and the female pin are connected together, the temperature of the male pin and the female pin is regarded as the same, and the temperature of the male pin and the temperature of the female pin can be detected. The embodiment of the present application also does not specifically limit whether the OT terminal 200 is disposed on a cable connected to a male pin or a cable connected to a female pin, and can achieve a temperature conduction effect.
According to the technical scheme provided by the embodiment of the application, a temperature detection component, such as a temperature sampling circuit or temperature penetrating interference, can be arranged on the OT terminal 200 to convert a temperature signal into an electric signal and send the electric signal to the controller, and it is understood that the controller can be a controller of an inverter or other controllers independent of the inverter. The controller judges the temperature, and when the temperature is higher, corresponding measures are taken.
For example, the temperature detecting part converts the temperature signal into an electrical signal and sends the electrical signal to the controller, and the controller further includes: a controller; the controller is used for alarming and reducing the input power of the inverter when the temperature of the photovoltaic connector is larger than the first preset temperature and smaller than or equal to the second preset temperature; and when the temperature of the photovoltaic connector is higher than a second preset temperature, controlling the inverter to stop working.
For example, the controller converts the processed electric signal into a temperature value T, and if T is less than or equal to a first preset temperature T1, the temperature value is a normal temperature value, so that the photovoltaic system can work normally. When T1 is more than T and less than or equal to a second preset temperature T2, the photovoltaic connector has a temperature abnormality phenomenon, at the moment, the controller can give an alarm, and the input power of the direct current side (de-rated operation) is reduced, namely the input power of the inverter is reduced, so that the photovoltaic connector cannot generate heat further; when the collection temperature T is greater than T2, the fact that the photovoltaic connector is seriously heated is indicated, the photovoltaic system can conduct fault prompt at the moment, the photovoltaic system stops working, for example, the inverter is controlled to stop working.
The above description is that the temperature of the OT terminal is detected, and in addition, the temperature of the OT terminal may be led into a PCB, and a temperature detecting component, such as a temperature sampling circuit, is provided on the PCB to collect the temperature.
Referring to fig. 3, a schematic view of yet another photovoltaic connector apparatus according to an embodiment of the present application is provided.
In the photovoltaic connector device provided in the present embodiment, the OT terminal 200 is provided on the cable 102, and the OT terminal 200 introduces the pin temperature into the PCB soldering terminal 301;
and a temperature detecting part for detecting the temperature of the PCB solder terminal 301 to obtain the temperature of the photovoltaic connector.
The PCB welding terminal 301 is connected with the copper sheet of the PCB 302;
the temperature detection component is specifically configured to detect a temperature of the copper sheet of the PCB circuit board 302 to obtain a temperature of the photovoltaic connector.
It should be appreciated that the OT terminals, PCB solder terminals 301, and PCB circuit board 302 may all be located inside the chassis 400 of the inverter.
In an actual product, a plurality of photovoltaic connectors may be commonly corresponding to the same PCB circuit board 302, and four photovoltaic connectors are schematically illustrated in fig. 3.
Since a plurality of photovoltaic connectors commonly correspond to the same PCB circuit board 302, it is necessary to detect the temperature of the copper sheet of the PCB circuit board 302 in the vicinity of the OT terminal led out for each connector, for example, the temperature sampling point 303 for the photovoltaic connector may be selected at the illustrated position, that is, near the PCB solder terminal 301.
According to the photovoltaic connector device, the temperature of the contact pin is obtained indirectly by collecting the temperature of the copper sheet on the PCB circuit board through the cable and the OT terminal, the structure of the existing terminal is not changed, the cost is low, the connection reliability of the connector can be guaranteed, and the contact pin can be timely protected when the temperature is high.
Based on the photovoltaic connector device provided in the above embodiments, the embodiments of the present application further provide a photovoltaic system, which is described in detail below with reference to the accompanying drawings.
Referring to fig. 4, a schematic diagram of a photovoltaic system according to an embodiment of the present application is shown.
The photovoltaic system provided by the embodiment of the application comprises: the inverter 500 and the photovoltaic connector device 1000 described in the above embodiments;
the photovoltaic connectors in the photovoltaic connector apparatus 1000 are used to connect a plurality of photovoltaic modules in series together at the input of the inverter 500.
The inverter comprises a PCB circuit board, and a PCB welding terminal is connected with a copper sheet of the PCB circuit board;
the temperature detection component is particularly used for detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
The photovoltaic system provided by the embodiment of the application, including the photovoltaic connector device that the embodiment introduced, still include the dc-to-ac converter, photovoltaic connector device obtains the temperature of contact pin through setting up temperature conduction part, the interval, when the higher temperature of detection, the explanation probably has the connection problem, can report to the police, perhaps take other measures, avoid long-time high temperature, cause more serious trouble. The structure of the photovoltaic connector does not need to be changed, so that the photovoltaic connector can be applied to the existing photovoltaic connector, and the cost is saved.
Based on the photovoltaic connector device and the photovoltaic system provided in the above embodiments, the embodiments of the present application further provide a temperature detection method of the photovoltaic connector, which is described in detail below with reference to the accompanying drawings.
Referring to fig. 5, the flowchart of a temperature detection method of a photovoltaic connector according to an embodiment of the present application is shown.
According to the temperature detection method of the photovoltaic connector, the photovoltaic connector comprises a shell and a contact pin, and one end of the contact pin is connected with a photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
s501: the heat of the contact pin is led out by a temperature conduction component arranged on a cable or a copper bar connected with the contact pin;
s502: the temperature of the temperature conduction member is detected to obtain the temperature of the photovoltaic connector.
The heat of the contact pin is led out by a temperature conduction component arranged on the cable or the copper bar, and the contact pin specifically comprises: the heat of the pins is conducted away by means of OT terminals provided on the cable or copper bar.
The OT terminal arranged on the cable or the copper bar is utilized to lead out the heat of the contact pin, and the method specifically comprises the following steps: the OT terminal is connected with the PCB welding terminal, and the PCB welding terminal is connected with the copper sheet of the PCB circuit board;
and detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
The method provided by the embodiment of the application further comprises the following steps: when the temperature of the photovoltaic connector is larger than the first preset temperature and smaller than or equal to the second preset temperature, alarming is conducted, and the input power of the inverter is reduced; and when the temperature of the photovoltaic connector is higher than a second preset temperature, controlling the inverter to stop working.
According to the temperature detection method of the photovoltaic connector, the temperature of the contact pin is obtained indirectly by collecting the temperature of the copper sheet on the PCB through the cable and the OT terminal to the PCB, the structure of the existing terminal is not changed, the cost is low, the connection reliability of the connector can be guaranteed, and the contact pin can be timely protected when the temperature is high.
It should be noted that, in the present description, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. A photovoltaic connector device, comprising: a photovoltaic connector, a temperature conduction component and a temperature detection component;
the photovoltaic connector comprises a shell and a contact pin, wherein one end of the contact pin is connected with the photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
the temperature conduction component is arranged on a cable or a copper bar connected with the contact pin and used for guiding out heat of the contact pin;
the temperature detection component is used for detecting the temperature of the temperature conduction component to obtain the temperature of the photovoltaic connector.
2. The apparatus of claim 1, wherein the pin comprises: a male pin and a female pin;
the male pin is used for being connected with the photovoltaic module through a cable, and the female pin is used for being connected with the inverter through a cable or a copper bar; or, the male pin is used for connecting the inverter through a cable or the same strip, and the female pin is used for connecting the photovoltaic module through the cable;
the temperature conduction component is arranged on one side of the female pin or one side of the male pin.
3. The apparatus of claim 2 wherein said temperature conduction member is an OT terminal.
4. A device according to claim 3, wherein the temperature detecting means is for detecting the temperature of the OT terminal to obtain the temperature of the photovoltaic connector.
5. The apparatus of claim 3 wherein the OT terminals direct temperature into PCB solder terminals;
the temperature detection component is used for detecting the temperature of the PCB welding terminal to obtain the temperature of the photovoltaic connector.
6. The apparatus of claim 5, wherein the PCB solder terminals are connected with copper sheets of a PCB circuit board;
the temperature detection component is specifically used for detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
7. The apparatus according to any one of claims 1-6, further comprising: a controller;
the controller is used for alarming and reducing the input power of the inverter when the temperature of the photovoltaic connector is larger than a first preset temperature and smaller than or equal to a second preset temperature; and when the temperature of the photovoltaic connector is higher than the second preset temperature, controlling the inverter to stop working.
8. A photovoltaic system, comprising: an inverter and the photovoltaic connector device of any one of claims 1-7;
the photovoltaic connector in the photovoltaic connector device is used for connecting a plurality of photovoltaic modules in series together at the input end of the inverter.
9. The photovoltaic system of claim 8, wherein the inverter includes a PCB circuit board inside, the PCB solder terminals being connected with copper sheets of the PCB circuit board;
the temperature detection component is specifically used for detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
10. The temperature detection method of the photovoltaic connector is characterized in that the photovoltaic connector comprises a shell and a contact pin, and one end of the contact pin is connected with a photovoltaic module through a cable; the other end of the contact pin is used for being connected with the inverter through a cable or a copper bar;
heat of the pins is conducted out by using a temperature conduction component arranged on a cable or a copper bar connected with the pins;
the temperature of the temperature conduction member is detected to obtain the temperature of the photovoltaic connector.
11. The method according to claim 10, wherein the heat of the pins is conducted away by means of a temperature conducting member arranged on the cable or copper bar to which the pins are connected, in particular comprising:
and the OT terminal arranged on the cable or the copper bar connected with the pin is used for conducting out the heat of the pin.
12. The method according to claim 11, wherein the conducting away of heat from the pins by means of OT terminals provided on the cables or copper bars to which the pins are connected, in particular comprises:
the OT terminal is connected with a PCB welding terminal, and the PCB welding terminal is connected with a copper sheet of a PCB circuit board;
and detecting the temperature of the copper sheet of the PCB to obtain the temperature of the photovoltaic connector.
13. The method according to any one of claims 10-12, further comprising:
when the temperature of the photovoltaic connector is larger than the first preset temperature and smaller than or equal to the second preset temperature, alarming is conducted, and the input power of the inverter is reduced; and when the temperature of the photovoltaic connector is higher than the second preset temperature, controlling the inverter to stop working.
CN202310217271.1A 2023-03-03 2023-03-03 Photovoltaic connector device, photovoltaic system and temperature detection method Pending CN116315777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310217271.1A CN116315777A (en) 2023-03-03 2023-03-03 Photovoltaic connector device, photovoltaic system and temperature detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310217271.1A CN116315777A (en) 2023-03-03 2023-03-03 Photovoltaic connector device, photovoltaic system and temperature detection method

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CN116315777A true CN116315777A (en) 2023-06-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118501777A (en) * 2024-07-12 2024-08-16 港华能源创科(深圳)有限公司 Method and system for monitoring contact state of MC4 connector of photovoltaic system in real time

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118501777A (en) * 2024-07-12 2024-08-16 港华能源创科(深圳)有限公司 Method and system for monitoring contact state of MC4 connector of photovoltaic system in real time

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