Photovoltaic module junction box connector detection device

Abstract

The present invention provides a photovoltaic module junction box connector detection device, which belongs to the field of photovoltaic module detection tools, including a shell, a positive electrode test part, a negative electrode test part, a positive electrode pressure sensor, a negative electrode pressure sensor and an alarm module, wherein the positive electrode test part and the negative electrode test part are respectively arranged on the shell, the positive electrode test part is provided with a first depth mark, and the negative electrode test part is provided with a second depth mark; the outer diameter of the positive electrode pressure sensor is larger than the standard inner diameter of the positive electrode beryllium copper mesh, and the outer diameter of the negative electrode pressure sensor is larger than the standard inner diameter of the negative electrode metal core; the alarm module is arranged in the shell, and is respectively communicated and connected with the positive electrode pressure sensor and the negative electrode pressure sensor. The photovoltaic module junction box connector detection device provided by the present invention does not require a multimeter and has no direct relationship with manual operation; does not require a tensile machine, is easy to operate, and does not involve destructive testing; does not require visual inspection, avoids missed detection and wrong detection, and the device is easy to carry.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic component detection tools, and more specifically, relates to a photovoltaic component junction box connector detection device. Background Art

[0002] The photovoltaic module junction box is a connection device between the solar cell array composed of solar cell modules and the solar charging control device. Its main function is to connect and protect the solar photovoltaic module, connect the power generated by the solar cell to the external line, and conduct the current generated by the photovoltaic module. The connection part of the photovoltaic module junction box is the junction box connector. The junction box has two positive and negative terminals. Each terminal usually leads to a connecting line. There is a connector at the connecting line, which is divided into a positive connector and a negative connector. The two can be plugged in, also known as a male head and a female head. Due to the requirements of the connector protection level, the conductive part usually cannot leak out after connection, and it needs to meet the IP67 standard requirements. Because the tubular metal core inside the positive connector and the rod-shaped metal core inside the negative connector are not placed in place or the stop ring fails, too deep will cause poor contact, thereby causing the running device to burn; too shallow will cause it to be unable to be installed in place, and at the same time affect the protection level, and there are safety hazards. In order to ensure the reliability of the connector connection, it is often necessary to test the positive and negative connectors.

[0003] The current detection method generally uses a multimeter to perform resistance detection or continuity detection to achieve the purpose of detecting electrical connection performance; uses a tensile machine to measure tension to achieve the purpose of detecting the internal firmness of the connector; and the detection personnel visually check whether the positive and negative cross-sections are straight and in place to achieve the purpose of detecting the contact performance of the positive and negative electrodes. This detection method has the following defects: 1) Sampling detection is usually used, which is easy to miss detection; 2) The detection equipment has a complex structure and high cost; 3) The detection equipment cannot determine the contact performance. The detection of contact performance is completed by visual inspection. Because the conductive part of the connector is set inside, it is not convenient to watch, resulting in a high rate of missed detection and false detection; 4) For electrical performance, only stereotyped detection can be performed, and the integrity of the contact cannot be determined. The contact of the multimeter probe has a certain resistance, which is related to human operation. The operation is complicated and not convenient for full inspection; 5) In the tension measurement, the connection buckle structure between the positive and negative connectors needs to be removed, which is a destructive test and is not convenient to operate. Summary of the invention

[0004] The purpose of the present invention is to provide a photovoltaic module junction box connector detection device to solve the technical problems in the prior art that the measurement operation of the electrical connection performance, connection firmness performance and positive and negative contact performance between the positive and negative connectors is complicated, is often affected by human factors, and has high measurement costs.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a photovoltaic module junction box connector detection device, including: a housing, a positive electrode testing part, a negative electrode testing part, a positive electrode pressure sensor, a negative electrode pressure sensor and an alarm module;

[0006] The positive electrode test part and the negative electrode test part are respectively arranged on the shell, and the positive electrode test part and the negative electrode test part are both columnar components. The positive electrode test part is provided with a first depth mark, and the distance from the first depth mark to the free end face of the positive electrode test part is equal to the standard distance from the outer end face of the positive electrode connector to the outer end face of the positive electrode beryllium copper mesh. The negative electrode test part is provided with a second depth mark, and the distance from the second depth mark to the free end face of the negative electrode test part is equal to the standard distance from the outer end face of the negative electrode connector to the outer end face of the negative electrode metal core;

[0007] The positive electrode pressure sensor and the negative electrode pressure sensor are both columnar components, the positive electrode pressure sensor is coaxially arranged at the free end of the positive electrode testing part, and the outer diameter of the positive electrode pressure sensor is larger than the standard inner diameter of the positive electrode beryllium copper mesh, and the negative electrode pressure sensor is coaxially arranged at the free end of the negative electrode testing part, and the outer diameter of the negative electrode pressure sensor is larger than the standard inner diameter of the negative electrode metal core;

[0008] The alarm module is disposed in the housing and is respectively connected to the positive electrode pressure sensor and the negative electrode pressure sensor for communication;

[0009] The alarm module is used to obtain the positive electrode pressure value information of the positive electrode pressure sensor, and determine whether the positive electrode pressure value information is consistent with the positive electrode standard pressure value, and when the positive electrode pressure value information is consistent with the positive electrode standard pressure value, an alarm is issued;

[0010] The alarm module is used to obtain the negative electrode pressure value information of the negative electrode pressure sensor, and determine whether the negative electrode pressure value information is consistent with the negative electrode standard pressure value. When the negative electrode pressure value information is consistent with the negative electrode standard pressure value, an alarm is issued.

[0011] As another embodiment of the present application, the outer shell is a cylindrical component, and the positive electrode testing part and the negative electrode testing part are respectively arranged at two ends of the outer shell.

[0012] As another embodiment of the present application, the positive electrode testing part and the negative electrode testing part are both coaxially arranged with the outer shell.

[0013] As another embodiment of the present application, the positive electrode testing part and the negative electrode testing part are both cylindrical components and are connected to the inner cavity of the outer shell, the positive electrode pressure sensor is inserted into the positive electrode testing part, and the test end of the positive electrode pressure sensor extends out of the free end of the positive electrode testing part, and the negative electrode pressure sensor is inserted into the negative electrode testing part, and the test end of the negative electrode pressure sensor extends out of the free end of the negative electrode testing part.

[0014] As another embodiment of the present application, the positive electrode pressure sensor and the alarm module are communicatively connected via a metal connecting strip, and the negative electrode pressure sensor and the alarm module are communicatively connected via a metal connecting strip.

[0015] As another embodiment of the present application, the positive electrode testing part is provided with a positive limit position protrusion for abutting and limiting the inner end surface of the positive electrode pressure sensor, and the positive electrode pressure sensor and the alarm module are connected through wire communication; the negative electrode testing part is provided with a negative limit position protrusion for abutting and limiting the inner end surface of the negative electrode pressure sensor, and the negative electrode pressure sensor and the alarm module are connected through wire communication.

[0016] As another embodiment of the present application, the first depth mark is arranged in a ring shape around the outer wall of the positive electrode testing part, and the second depth mark is arranged in a ring shape around the outer wall of the negative electrode testing part.

[0017] As another embodiment of the present application, the alarm module is a sound alarm module, a light alarm module or a sound and light alarm module.

[0018] As another embodiment of the present application, an anti-slip protrusion is provided on the shell.

[0019] As another embodiment of the present application, a grip handle is provided on the housing.

[0020] The beneficial effect of the photovoltaic module junction box connector detection device provided by the present invention is that: compared with the prior art, when measuring the positive connector, the photovoltaic module junction box connector detection device of the present invention inserts the positive electrode test part from the opening of the positive connector, and the positive electrode pressure sensor is gradually inserted into the positive electrode beryllium copper mesh. If the positive electrode beryllium copper mesh in the positive connector is installed in place, when the outer end face of the positive connector is aligned with the first depth mark, the positive electrode pressure sensor is also inserted into the specified position of the positive electrode beryllium copper mesh. Since the outer diameter of the positive electrode pressure sensor is larger than the positive electrode beryllium copper mesh, the positive electrode pressure sensor is inserted into the positive electrode beryllium copper mesh. The inner diameter of the copper mesh, at this time, the pressure value sensed by the positive pressure sensor is the positive standard pressure value, and the alarm module alarms; the test principle of the negative connector is similar to that of the positive connector. If the negative metal core in the negative connector is installed in place, when the outer end face of the negative connector is aligned with the second depth mark after insertion, the negative pressure sensor is also inserted into the specified position of the negative metal core. Since the outer diameter of the negative pressure sensor is larger than the inner diameter of the negative metal core, the pressure value sensed by the negative pressure sensor is the negative standard pressure value, and the alarm module alarms. Through the above test process, it can be determined that the positive beryllium copper mesh in the positive connector and the negative metal core in the negative connector are both installed in place, so it can be determined that the electrical performance, connection firmness and positive and negative contact performance of the positive and negative connectors after being connected to each other are all qualified. The photovoltaic module junction box connector detection device provided by the present invention does not need to use a multimeter to perform resistance detection or continuity detection, can determine the integrity of the contact, and has no direct relationship with human operation; does not need a tensile machine to measure the tension, is easy to operate, does not need to remove the buckle, and does not involve destructive testing; uses the dual standards of depth and pressure to determine the positive and negative contact performance, which is convenient for viewing whether the depth and pressure meet the standards, does not require detection personnel to rely on experience for visual inspection, effectively avoids missed detection and wrong detection, can avoid later hidden dangers caused by poor contact, and greatly reduces the testing cost. At the same time, the device is easy to carry, easy to use, and convenient for full inspection, avoiding losses caused by missed detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 is a cross-sectional view of the internal structure of the positive electrode connector;

[0023] Figure 2 is a cross-sectional view of the internal structure of the negative electrode connector;

[0024] Figure 3It is a schematic diagram of the assembly structure of the positive connector and the negative connector;

[0025] Figure 4 A schematic diagram of the structure of a photovoltaic module junction box connector detection device provided in Embodiment 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of detecting the use status of the negative electrode connector using the photovoltaic module junction box connector detection device provided by the first embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of detecting the use status of the positive connector using the photovoltaic module junction box connector detection device provided by the first embodiment of the present invention;

[0028] Figure 7 A cross-sectional view of the internal structure of a photovoltaic module junction box connector detection device provided in Embodiment 1 of the present invention;

[0029] Figure 8 A cross-sectional view of the internal structure of a photovoltaic module junction box connector detection device provided in Embodiment 2 of the present invention;

[0030] Fig. 9 This is a working module diagram of the alarm module used in the second embodiment of the present invention;

[0031] Fig.10 This is a working module diagram of the alarm module used in the third embodiment of the present invention;

[0032] Fig.11 This is a working module diagram of the alarm module used in the first embodiment of the present invention.

[0033] Among them, the reference numerals in the figure are:

[0034] 1-housing; 2-positive electrode test part; 3-negative electrode test part; 4-positive electrode pressure sensor; 5-negative electrode pressure sensor; 6-alarm module; 601-data processing unit; 602-buzzer; 603-LED light source; 7-first depth mark; 8-positive electrode connector; 9-positive electrode beryllium copper mesh; 10-second depth mark; 11-negative electrode connector; 12-negative electrode metal core; 13-metal connecting strip; 14-positive limit position protrusion; 15-wire; 16-negative limit position protrusion DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Please also read Figures 1 to 9The photovoltaic module junction box connector detection device provided by the present invention is now described. The photovoltaic module junction box connector detection device comprises a housing 1, a positive electrode testing unit 2, a negative electrode testing unit 3, a positive electrode pressure sensor 4, a negative electrode pressure sensor 5 and an alarm module 6.

[0037] The positive electrode test part 2 and the negative electrode test part 3 are respectively arranged on the outer shell 1, and the positive electrode test part 2 and the negative electrode test part 3 are both columnar components. The positive electrode test part 2 is provided with a first depth mark 7, and the distance from the first depth mark 7 to the free end face of the positive electrode test part 2 is equal to the standard distance from the outer end face of the positive electrode connector 8 to the outer end face of the positive electrode beryllium copper mesh 9. The negative electrode test part 3 is provided with a second depth mark 10, and the distance from the second depth mark 10 to the free end face of the negative electrode test part 3 is equal to the standard distance from the outer end face of the negative electrode connector 11 to the outer end face of the negative electrode metal core 12.

[0038] The positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 are both columnar components. The positive electrode pressure sensor 4 is coaxially arranged at the free end of the positive electrode test part 2, and the outer diameter of the positive electrode pressure sensor 4 is larger than the standard inner diameter of the positive electrode beryllium copper mesh 9. The negative electrode pressure sensor 5 is coaxially arranged at the free end of the negative electrode test part 3, and the outer diameter of the negative electrode pressure sensor 5 is larger than the standard inner diameter of the negative electrode metal core 12.

[0039] The alarm module 6 is arranged in the housing 1 and is respectively connected to the positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 for communication;

[0040] The alarm module 6 is used to obtain the positive electrode pressure value information of the positive electrode pressure sensor 4, and determine whether the positive electrode pressure value information is consistent with the positive electrode standard pressure value. When the positive electrode pressure value information is consistent with the positive electrode standard pressure value, an alarm is issued;

[0041] The alarm module 6 is used to obtain the negative electrode pressure value information of the negative electrode pressure sensor 5, and determine whether the negative electrode pressure value information is consistent with the negative electrode standard pressure value. When the negative electrode pressure value information is consistent with the negative electrode standard pressure value, an alarm is issued.

[0042] The housing 1 , the positive electrode testing part 2 and the negative electrode testing part 3 are all insulating components.

[0043] Compared with the prior art, the photovoltaic module junction box connector detection device provided by the present invention has the following advantages: when measuring the positive electrode connector 8, the positive electrode test part 2 is inserted from the opening of the positive electrode connector 8, and the positive electrode pressure sensor 4 is gradually inserted into the positive electrode beryllium copper mesh 9. If the positive electrode beryllium copper mesh 9 in the positive electrode connector 8 is installed in place, when the outer end face of the positive electrode connector 8 is aligned with the first depth mark 7, the positive electrode pressure sensor 4 is also inserted into the specified position of the positive electrode beryllium copper mesh 9. Since the outer diameter of the positive electrode pressure sensor 4 is larger than the inner diameter of the positive electrode beryllium copper mesh 9, the positive electrode pressure sensor 4 senses the positive electrode beryllium copper mesh 9. The pressure value is the positive standard pressure value, and the alarm module 6 alarms; the testing principle of the negative connector 11 is similar to that of the positive connector 8. If the negative metal core 12 in the negative connector 11 is installed in place, when the outer end face of the negative connector 11 is aligned with the second depth mark 10 after insertion, the negative pressure sensor 5 is also inserted into the specified position of the negative metal core 12. Since the outer diameter of the negative pressure sensor 5 is larger than the inner diameter of the negative metal core 12, the pressure value sensed by the negative pressure sensor 5 is the negative standard pressure value, and the alarm module 6 alarms. Through the above test process, it can be determined that the positive beryllium copper mesh 9 in the positive connector 8 and the negative metal core 12 in the negative connector 11 are both installed in place, so it can be determined that the electrical performance, connection firmness performance and positive and negative contact performance of the positive connector 8 and the negative connector 11 after being connected to each other are all qualified. The photovoltaic module junction box connector detection device provided by the present invention does not need to use a multimeter to perform resistance detection or continuity detection, can determine the integrity of the contact, and has no direct relationship with human operation; does not need a tensile machine to measure the tension, is easy to operate, does not need to remove the buckle, and does not involve destructive testing; uses the dual standards of depth and pressure to determine the positive and negative contact performance, which is convenient for viewing whether the depth and pressure meet the standards, does not require detection personnel to rely on experience for visual inspection, effectively avoids missed detection and wrong detection, can avoid later hidden dangers caused by poor contact, and greatly reduces the testing cost. At the same time, the device is easy to carry, easy to use, and convenient for full inspection, avoiding losses caused by missed detection.

[0044] According to the general structure of the positive connector 8 and the negative connector 11, the length of the pressure sensor 4 and the negative pressure sensor 5 can be 3mm-7mm. The positive standard pressure value and the negative standard pressure value are set according to the design requirements, and can be selected from 4N-10N.

[0045] As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the photovoltaic module junction box connector detection device also includes a positive pole protective cover and a negative pole protective cover, the positive pole protective cover is arranged on the outer periphery of the positive pole pressure sensor 4 and is interference fit with the positive pole test part 2, and the negative pole protective cover is arranged on the outer periphery of the negative pole pressure sensor 5 and is interference fit with the negative pole test part 3. When not in use, the protective cover can play a good protective role for the pressure sensor to prevent damage to the probe of the pressure sensor during storage; when it is needed, the positive pole protective cover and the negative pole protective cover can be pulled off respectively to perform the detection operation.

[0046] Please also read Figures 4 to 8 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the housing 1 is a cylindrical component, and the positive electrode test part 2 and the negative electrode test part 3 are respectively arranged at both ends of the housing 1. The cylindrical housing 1 can be convenient for the detection personnel to hold, and the positive electrode test part 2 and the negative electrode test part 3 are arranged at both ends of the housing 1, so that the overall structure of the detection device is compact, convenient for storage, and more beautiful in appearance.

[0047] See also Figures 4 to 8 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the positive electrode test part 2 and the negative electrode test part 3 are both coaxially arranged with the housing 1. The coaxially arranged structure makes the manufacturing of the housing 1, the positive electrode test part 2 and the negative electrode test part 3 simpler and the assembly of the internal components more convenient.

[0048] As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, openings corresponding to the positive electrode test part 2 and the negative electrode test part 3 are respectively provided at both ends of the shell 1, and the shell 1 is detachably connected to the positive electrode test part 2 at the opening, and the shell 1 is detachably connected to the negative electrode test part 3 at the opening. When maintenance is required, the positive electrode test part 2 and the negative electrode test part 3 are disassembled, and the components such as the alarm module 6 arranged inside the shell 1 can be inspected, and the pressure sensors arranged on the positive electrode test part 2 and the negative electrode test part 3 can also be conveniently inspected. The detachable connection method between the shell 1 and the positive electrode test part 2 and the negative electrode test part 3 can be a threaded connection method, for example, an internal thread is provided at the opening, and corresponding external threads are provided at the ends of the positive electrode test part 2 and the negative electrode test part 3, respectively.

[0049] See also Figures 4 to 8As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the positive electrode test part 2 and the negative electrode test part 3 are both cylindrical components and are connected to the inner cavity of the housing 1. The positive electrode pressure sensor 4 is inserted into the positive electrode test part 2, and the test end of the positive electrode pressure sensor 4 extends out of the free end of the positive electrode test part 2. The negative electrode pressure sensor 5 is inserted into the negative electrode test part 3, and the test end of the negative electrode pressure sensor 5 extends out of the free end of the negative electrode test part 3. The positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 are respectively inserted into the cylindrical structure, and the cylindrical structure can play a role of fixing and supporting the pressure sensor, so that the connection of the positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 is more firmly, and the positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 are prevented from falling off from the positive electrode test part 2 and the negative electrode test part 3 during use.

[0050] See also Figure 7 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the positive pressure sensor 4 and the alarm module 6 are connected to each other through the metal connecting strip 13, and the negative pressure sensor 5 and the alarm module 6 are connected to each other through the metal connecting strip 13. The metal connecting strip 13 itself has a certain rigidity, which can not only realize the conductive connection, but also support the positive pressure sensor 4 and the negative pressure sensor 5, respectively, to prevent the positive pressure sensor 4 and the negative pressure sensor 5 from axial displacement, which affects the test accuracy, and can also determine the total length of the two sensors.

[0051] See also Figure 8 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, a positive limit position protrusion 14 for abutting and limiting the inner end surface of the positive pressure sensor 4 is provided in the positive electrode test part 2, and the positive pressure sensor 4 and the alarm module 6 are connected by a wire 15; a negative limit position protrusion 16 for abutting and limiting the inner end surface of the negative pressure sensor 5 is provided in the negative electrode test part 3, and the negative pressure sensor 5 and the alarm module 6 are connected by a wire 15. The positive limit position protrusion 14 has a limiting effect on the positive pressure sensor 4, preventing the positive pressure sensor 4 from relative displacement with the positive electrode test part 2 during the plugging and unplugging process; the negative limit position protrusion 16 has the same effect on the negative pressure sensor 5. With this structure, the alarm module 6 and the pressure sensor can be connected through a conventional wire structure, and the connection structure is simpler and the cost is lower.

[0052] See also Figures 4 to 6As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the first depth mark 7 is arranged in a ring shape around the outer wall of the positive electrode test part 2, and the second depth mark 10 is arranged in a ring shape around the outer wall of the negative electrode test part 3. Since the depth marks are arranged in a surrounding manner, the depth marks can be easily observed from any angle, which further simplifies the detection process.

[0053] As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, annular grooves can be respectively provided on the outer wall of the positive electrode test part 2 and the outer wall of the negative electrode test part 3, and materials such as ink can be coated in the annular grooves to respectively form the first depth mark 7 and the second depth mark 10. Since the ink is located in the grooves, the ink coating can be effectively prevented from being worn during the plugging and unplugging process.

[0054] As a specific implementation of the photovoltaic module junction box connector detection device provided by the present invention, the first depth mark 7 and the second depth mark 10 use different ink colors to prevent the detection personnel from inserting the test part that does not correspond to the connector into the connector, thereby improving the detection efficiency.

[0055] As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the first depth mark 7 and the second depth mark 10 can be coated on the outer wall of the positive test part 2 and the outer wall of the negative test part 3 respectively using fluorescent materials. In this way, even in a test environment with unsatisfactory light intensity, the operator can easily observe whether the end face of the positive connector 8 and the end face of the negative connector 11 are aligned with the two depth marks respectively.

[0056] See also Figures 9 to 11 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the alarm module 6 is a sound alarm module, a light alarm module or a sound and light alarm module. The alarm issued by the alarm module 6 can be sound or light, which can directly stimulate the senses of the detection personnel and facilitate the detection personnel to perceive.

[0057] See also Fig. 9 and Fig.11As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, when the alarm module 6 is a sound alarm module, the alarm module 6 includes a data processing unit 601 and a buzzer 602 connected to the data processing unit 601, and the alarm issued is a sound alarm. The positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 are respectively connected to the data processing unit 601 for communication. The data processing unit 601 is used to obtain the positive electrode pressure value information of the positive electrode pressure sensor 4, and determine whether the positive electrode pressure value information is consistent with the positive electrode standard pressure value. When the positive electrode pressure value information is consistent with the positive electrode standard pressure value, the buzzer 602 is controlled to sound; the data processing unit 601 is also used to obtain the negative electrode pressure value information of the negative electrode pressure sensor 5, and determine whether the negative electrode pressure value information is consistent with the negative electrode standard pressure value. When the negative electrode pressure value information is consistent with the negative electrode standard pressure value, the buzzer 602 is controlled to sound. A speaker opening corresponding to the buzzer 602 is set on the housing 1 to facilitate the propagation of sound.

[0058] See also Fig.10 and Fig.11 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, when the alarm module 6 is a light alarm module, the alarm module 6 includes a data processing unit 601 and an LED light source 603 connected to the data processing unit 601, and the alarm issued is the flashing of light. The positive electrode pressure sensor 4 and the negative electrode pressure sensor 5 are respectively connected to the data processing unit 601 for communication. The data processing unit 601 is used to obtain the positive electrode pressure value information of the positive electrode pressure sensor 4, and judge whether the positive electrode pressure value information is consistent with the positive electrode standard pressure value. When the positive electrode pressure value information is consistent with the positive electrode standard pressure value, the LED light source 603 is controlled to flash and emit light; the data processing unit 601 is also used to obtain the negative electrode pressure value information of the negative electrode pressure sensor 5, and judge whether the negative electrode pressure value information is consistent with the negative electrode standard pressure value. When the negative electrode pressure value information is consistent with the negative electrode standard pressure value, the LED light source 603 is controlled to flash and emit light. A transparent window corresponding to the LED light source is set on the shell to facilitate light transmission.

[0059] See also Figures 9 to 11 As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, when the alarm module 6 is an audible and audible alarm module, the alarm module 6 includes a data processing unit 601, an LED light source 603 connected to the data processing unit 601, and a buzzer 602 connected to the data processing unit 601. The alarm issued is a sound alarm and a flashing light, and the working principle is similar to the above-mentioned alarm working principle. At the same time, a speaker opening and a transparent window are opened on the housing 1 to facilitate the propagation of sound and the transmission of light.

[0060] Alternatively, when the shell 1 is relatively thin, sound can pass through without opening a speaker opening; when the shell 1 itself has a certain degree of transparency, light flickering can be observed without opening a transparent window.

[0061] In addition, as a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, the photovoltaic module junction box connector detection device may also include a display screen, which is arranged on the outer shell 1 and is communicatively connected to the data processing unit 601 in the alarm module 6, and is used to display the current pressure value sensed by the positive pressure sensor 4 or the negative pressure sensor 5.

[0062] As a specific embodiment of the photovoltaic module junction box connector detection device provided by the present invention, an anti-skid protrusion is provided on the housing 1. The anti-skid protrusion is a dot-shaped protrusion or a stripe-shaped protrusion, which is arranged at a position on the housing 1 where the grip frequency is relatively high, to increase friction and facilitate the detection personnel to plug and unplug the device.

[0063] As a specific implementation of the photovoltaic module junction box connector detection device provided by the present invention, a gripping handle is provided on the housing 1, and the gripping handle is convenient for applying force, so that the detection personnel can plug and unplug the device conveniently.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Photovoltaic module junction box connector detection device, characterized in that: It includes a housing, a positive electrode testing unit, a negative electrode testing unit, a positive electrode pressure sensor, a negative electrode pressure sensor and an alarm module; The positive electrode test part and the negative electrode test part are respectively arranged on the shell, and the positive electrode test part and the negative electrode test part are both columnar components. The positive electrode test part is provided with a first depth mark, and the distance from the first depth mark to the free end face of the positive electrode test part is equal to the standard distance from the outer end face of the positive electrode connector to the outer end face of the positive electrode beryllium copper mesh. The negative electrode test part is provided with a second depth mark, and the distance from the second depth mark to the free end face of the negative electrode test part is equal to the standard distance from the outer end face of the negative electrode connector to the outer end face of the negative electrode metal core; The positive electrode pressure sensor and the negative electrode pressure sensor are both columnar components, the positive electrode pressure sensor is coaxially arranged at the free end of the positive electrode testing part, and the outer diameter of the positive electrode pressure sensor is larger than the standard inner diameter of the positive electrode beryllium copper mesh, and the negative electrode pressure sensor is coaxially arranged at the free end of the negative electrode testing part, and the outer diameter of the negative electrode pressure sensor is larger than the standard inner diameter of the negative electrode metal core; The alarm module is disposed in the housing and is communicatively connected to the positive electrode pressure sensor and the negative electrode pressure sensor respectively; The alarm module is used to obtain the positive electrode pressure value information of the positive electrode pressure sensor, and determine whether the positive electrode pressure value information is consistent with the positive electrode standard pressure value, and when the positive electrode pressure value information is consistent with the positive electrode standard pressure value, an alarm is issued; The alarm module is used to obtain the negative electrode pressure value information of the negative electrode pressure sensor, and determine whether the negative electrode pressure value information is consistent with the negative electrode standard pressure value, and when the negative electrode pressure value information is consistent with the negative electrode standard pressure value, an alarm is issued; The housing, the positive electrode testing portion, and the negative electrode testing portion are all insulating members.

2. The photovoltaic module junction box connector detection device according to claim 1, characterized in that: The housing is a cylindrical member, and the positive electrode testing portion and the negative electrode testing portion are respectively disposed at two ends of the housing.

3. The photovoltaic module junction box connector detection device according to claim 2, characterized in that: The positive electrode testing part and the negative electrode testing part are both coaxially arranged with the housing.

4. The photovoltaic module junction box connector detection device according to any one of claims 1 to 3, characterized in that: The positive electrode testing part and the negative electrode testing part are both cylindrical components and are connected to the inner cavity of the shell. The positive electrode pressure sensor is inserted into the positive electrode testing part, and the test end of the positive electrode pressure sensor extends out of the free end of the positive electrode testing part. The negative electrode pressure sensor is inserted into the negative electrode testing part, and the test end of the negative electrode pressure sensor extends out of the free end of the negative electrode testing part.

5. The photovoltaic module junction box connector detection device according to claim 4, characterized in that: The positive electrode pressure sensor and the alarm module are communicatively connected via a metal connecting strip, and the negative electrode pressure sensor and the alarm module are communicatively connected via a metal connecting strip.

6. The photovoltaic module junction box connector detection device according to claim 4, characterized in that: The positive electrode testing part is provided with a positive limit position protrusion for abutting and limiting the inner end surface of the positive electrode pressure sensor, and the positive electrode pressure sensor and the alarm module are connected by wire communication; the negative electrode testing part is provided with a negative limit position protrusion for abutting and limiting the inner end surface of the negative electrode pressure sensor, and the negative electrode pressure sensor and the alarm module are connected by wire communication.

7. The photovoltaic module junction box connector detection device according to claim 1, characterized in that: The first depth mark is arranged in a ring shape around the outer wall of the positive electrode testing part, and the second depth mark is arranged in a ring shape around the outer wall of the negative electrode testing part.

8. The photovoltaic module junction box connector detection device according to claim 1, characterized in that: The alarm module is a sound alarm module, a light alarm module or a sound and light alarm module.

9. The photovoltaic module junction box connector detection device according to claim 1, characterized in that: The shell is provided with anti-slip protrusions.

10. The photovoltaic module junction box connector detection device according to claim 1, characterized in that: A gripping handle is provided on the shell.

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