CN210427770U - Photovoltaic module terminal box diode break-make detection device - Google Patents
Photovoltaic module terminal box diode break-make detection device Download PDFInfo
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- CN210427770U CN210427770U CN201920652635.8U CN201920652635U CN210427770U CN 210427770 U CN210427770 U CN 210427770U CN 201920652635 U CN201920652635 U CN 201920652635U CN 210427770 U CN210427770 U CN 210427770U
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Abstract
The utility model provides a photovoltaic module terminal box diode break-make detection device, includes the photovoltaic module terminal box, still include with the supporting terminal box diode check out test set of photovoltaic module terminal box, terminal box diode check out test set includes test probe, test probe is connected with the one end of electrically conductive connecting rod, the other end of electrically conductive connecting rod is connected with detection terminal electrically conductive connecting rod with still be provided with bee calling organ between the detection terminal. The utility model discloses under the operating condition of photovoltaic module electricity generation operation, whether there is the electric current to flow on the branch road that accessible electromagnetic induction principle induction goes out the diode place, if no electric current then send alarm information, realize quick screening to trouble subassembly, improve work efficiency to in the course of the work, need not to unpack apart the photovoltaic module terminal box, just can directly detect and screen the trouble diode, convenient and fast and detect the rate of accuracy height.
Description
Technical Field
The utility model belongs to the technical field of the terminal box diode detects technique and specifically relates to a photovoltaic module terminal box diode break-make detection device.
Background
The photovoltaic module, namely the solar panel, is the core part in the solar power generation system, also is the most important part in the solar power generation system, because the monomer solar cell can not be directly used as the power, so must connect and encapsulate a plurality of monomer battery string, parallel connection and rigorously into the subassembly when using, its effect is to convert solar energy into the electric energy, then store in the battery. The connecting device between the solar cell array formed by the solar cell modules and the solar charging control device is called a photovoltaic module junction box, and mainly has the functions of connecting and protecting the solar cell modules, connecting electric power generated by the solar cells with an external circuit and conducting current generated by the photovoltaic modules.
The photovoltaic module junction box is internally provided with an anti-reverse diode, which is mainly used for preventing the current from flowing reversely, protecting a solar panel circuit and preventing a storage battery from reversely charging a solar panel to damage the panel. Therefore, the importance of the diodes in the junction box of the photovoltaic module is self-evident, if a certain photovoltaic module unit or cell fails, the junction box diode isolates the failed module or cell from the power system, the photovoltaic module junction box is provided with a plurality of diodes, if one diode fails, the photovoltaic module can continue to work and operate, but the actual voltage of the photovoltaic module is reduced to one third of the rated voltage of the original photovoltaic module, if the failed diode is not replaced in time, the power generation of the photovoltaic module is directly influenced, the power generation efficiency is reduced, and if the actual voltage is important, the whole power system is damaged.
Therefore, in order to quickly and conveniently detect the position of the fault diode, a device capable of detecting the fault diode without opening the photovoltaic module junction box is required to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a device that is used for detecting terminal box diode break-make that convenient and fast and rate of accuracy are high.
The utility model provides a its technical problem take following technical scheme to realize:
the utility model provides a photovoltaic module terminal box diode break-make detection device, includes the photovoltaic module terminal box, still include with the supporting terminal box diode check out test set of photovoltaic module terminal box, terminal box diode check out test set includes the test probe, the test probe is connected with the one end of electrically conductive connecting rod, the other end of electrically conductive connecting rod is connected with the test terminal electrically conductive connecting rod with still be provided with bee calling organ between the test terminal, electrically conductive connecting rod include the connecting rod body of rod, connecting rod body of rod one end is connected test terminal, the other end is connected with the rear end pole, the other end of rear end pole is provided with the rotation axis, through what rotation axis and rear end pole were connected has the front end pole, the fixed block is installed to the lower part of front end pole, the fixed block with test probe.
Preferably, the detection probe is an electrically conductive inductance coil.
Preferably, the detection terminal be the instrument that can show voltage and current signal, detection terminal include current sensor and main control board, current sensor's one end is connected the output of electrically conductive connecting rod, current sensor's the other end is connected the main control board, the main control board still is connected with the display screen.
Preferably, the main control board adopts an STM series single chip microcomputer, the display screen adopts a digital electronic liquid crystal display screen, and the current sensor adopts a domestic Hall type.
Preferably, the detection terminal further comprises a power supply, one end of the power supply is connected with the buzzer, the other end of the power supply is connected with the main control board, and the buzzer is connected with the detection probe through the conductive connecting rod.
Preferably, the photovoltaic module junction box comprises photovoltaic module units, a plurality of the photovoltaic module units are connected in series to form a photovoltaic module unit group, a plurality of photovoltaic module unit groups are connected in parallel, a diode is arranged between each photovoltaic module unit group, a plurality of diodes are connected in series with the positive electrode of the diode and are connected to the positive electrode of the photovoltaic, and a plurality of diodes are connected in series with the negative electrode of the diode and are connected to the negative electrode of the photovoltaic.
Preferably, one end of the front end rod is provided with a conductive first lantern ring, one end of the rear end rod is provided with a conductive second lantern ring, the first lantern ring is welded and fixed on the rotating shaft, and the second lantern ring is movably sleeved on the rotating shaft.
Preferably, the rotating shaft is wound with a torsion spring, one end of the torsion spring is fixed to the bottom of the front end rod, and the other end of the torsion spring is fixed to the bottom of the rear end rod.
Preferably, one end of the rotating shaft is closed and provided with a protruding head, the other end of the rotating shaft is welded with a ratchet wheel, a pawl is fixed on the side surface of the rear end rod, and the pawl is lapped on the ratchet wheel.
The utility model has the advantages that:
the utility model discloses under the operating condition of photovoltaic module electricity generation operation, whether there is the electric current to flow on the branch road that accessible electromagnetic induction principle induction goes out the diode place, if no electric current then send alarm information, realize quick screening to trouble subassembly, the work efficiency is improved, and in the course of the work, need not to unpack apart the photovoltaic module terminal box, just can directly detect and filter trouble diode, convenient and fast and detection rate are high, furthermore, through improving the conducting connection pole, still can deal with and detect different environment, photovoltaic cell panel under the different operating condition, through adjusting the angle between front end pole and the rear end pole, make the detection signal of telecommunication that test probe can be accurate, accurate work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic connection diagram of the present invention;
fig. 3 is a schematic structural view of the conductive connecting rod of the present invention;
fig. 4 is a schematic structural view of the conductive connecting rod of the present invention in an operating state;
FIG. 5 is a schematic structural view of the front and rear rods of the present invention;
FIG. 6 is an enlarged view at A in FIG. 3;
fig. 7 is an enlarged view at B in fig. 4.
In the figure: 1. a photovoltaic cathode; 2. detecting a probe; 3. a conductive connecting rod; 4. detecting a terminal; 5. a photovoltaic positive electrode; 6. a diode; 7. a photovoltaic module unit; 8. a photovoltaic module junction box; 9. a rotating shaft; 10. a front end rod; 11. a rear end rod; 12. a fixed block; 14. a first collar; 15. a second collar; 16. a torsion spring; 17. a pawl; 18. a ratchet wheel; 19. a raised head; 31. the connecting rod body.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, a photovoltaic module terminal box diode break-make detection device, including photovoltaic module terminal box 8, still include with the supporting terminal box diode check out test set of photovoltaic module terminal box 8, whether terminal box diode check out test set is mainly used for detecting the normal break-make of diode in the terminal box, judges whether photovoltaic module is currently in normal operating range. The junction box diode detection device comprises a detection probe 2, wherein the detection probe 2 is an electric inductance coil which can conduct electricity, and the detection probe 2 conducts electricity, so that a magnetic field exists around the photovoltaic module unit 7 by utilizing the electromagnetic induction principle, when the detection probe 2 moves on the working photovoltaic module unit 7, the detection probe 2 passes through the magnetic field, and the electric inductance coil is electrified. The detection probe 2 is connected with one end of a conductive connecting rod 3, the other end of the conductive connecting rod 3 is connected with a detection terminal 4, and the conductive connecting rod 3 plays a conductive role and is used for transmitting an electric signal on the inductance coil to the detection terminal 4. The detection terminal 4 is an instrument capable of displaying voltage and current signals and is used for displaying the current and voltage values of the inductance coil flowing to the detection terminal 4 through the conductive connecting rod 3. The detection terminal 4 include current sensor and main control board, current sensor be used for gathering the current signal on the test probe 2 and transmit extremely in the main control board, current sensor's one end is connected the output of electrically conductive connecting rod 3, current sensor's the other end is connected the main control board, the main control board still is connected with the display screen. The main control board adopts an STM series single chip microcomputer, the display screen adopts a digital electronic liquid crystal display screen, and the current sensor adopts a domestic Hall type. The utility model discloses a change of fault diode, including electrically conductive connecting rod 3, detection terminal 4, buzzer, detector 2, and the detector is used for the staff to be provided with the current running state of diode, breaks down when diode 6 punctures, and then photovoltaic module unit 7 on the branch road of fault diode 6 place does not have the electric current and passes through, then 2 no electric signals of test probe, and at this moment, the buzzer sends out the police dispatch newspaper and changes fault diode 6 in order to indicate the staff, has improved the efficiency of changing. The detection terminal 4 further comprises a power supply, one end of the power supply is connected with the buzzer, the other end of the power supply is connected with the main control board, and the buzzer is connected with the detection probe 2 through the conductive connecting rod 3.
As shown in fig. 3, 4 and 5, the conductive connecting rod 3 includes a connecting rod body 31, one end of the connecting rod body 31 is connected to the detecting terminal 4, the other end of the connecting rod body is connected to a rear rod 11, the other end of the rear rod 11 is provided with a rotating shaft 9, a front rod 10 is connected to the rotating shaft 9 and the rear rod 11, a fixing block 12 is installed on the lower portion of the front rod 10, the fixing block 12 is connected to the detecting probe 2, a conductive first sleeve ring 14 is arranged at one end of the front rod 10, a conductive second sleeve ring 15 is arranged at one end of the rear rod 11, the first sleeve ring 14 is welded and fixed to the rotating shaft 9, and the second sleeve ring 15 is movably sleeved on the rotating shaft 9. The rotating shaft 9 is wound with a torsion spring 16, one end of the torsion spring 16 is fixed at the bottom of the front end rod 10, and the other end of the torsion spring 16 is fixed at the bottom of the rear end rod 11. One end of the rotating shaft 9 is closed and provided with a raised head 19, the other end of the rotating shaft 9 is welded with a ratchet wheel 18, a pawl 17 is fixed on the side face of the rear end rod 11, the pawl 17 is in lap joint with the ratchet wheel 18, the conductive connecting rod 3 adopts a common conductive rod for electric power maintenance engineering, the detection probe 2 transmits a detected electric signal to the rear end rod 11 through a connecting part between the front end rod 10 and the rear end rod 11, then transmits the detected electric signal to the connecting rod body 31 and finally reaches the detection terminal 4 for display, two ends of the rotating shaft 9 and the surfaces of the front end rod 10 and the rear end rod 11 are both provided with a layer of anti-leakage material, the torsion spring 16 is also coated with the anti-leakage material, only plays a fixing role, does not play a conductive transmission role and does not have the anti-leakage condition, and the anti-leakage material is made of insulating resin.
As shown in fig. 6 and 7, two ends of the torsion spring 16 respectively abut against the bottoms of the front end rod 10 and the rear end rod 11, the front end rod 10 and the rear end rod 11 are maintained to be horizontal by the self-elasticity of the torsion spring 16, and the ratchet 18 and the pawl 17 are fixed at one end of the rotating shaft 9 to counteract the elasticity of the torsion spring 16, when an angle is formed between the front end rod 10 and the rear end rod 11 according to actual conditions, such as 90 °, the front end rod 10 drives the ratchet 18 to press down, when the angle is pressed to 90 °, the torsion spring 16 tries to return to an original state due to the self-elasticity, the pawl 17 presses the ratchet 18 to prevent the ratchet 18 from moving, and at this time, the acting force of the pawl 17 and the elasticity of the torsion spring 16 counteract each other, so that the front end rod 10 and the rear end rod 11 maintain the current state. To return to the original state, the pawl 17 is lifted up to disengage the ratchet 18, and the torsion spring 16 lifts the front rod 10 to be level with the rear rod 11 according to its own elasticity without the pressure of the pawl 17.
The detection terminal 4 in be provided with the power, the power is connected bee calling organ, bee calling organ passes through electrically conductive connecting rod 3 links to each other with detecting probe 2. The photovoltaic module junction box 8 comprises photovoltaic module units 7, the photovoltaic module units 7 are connected in series to form photovoltaic module unit groups, multiple photovoltaic module unit groups are connected in parallel, each photovoltaic module unit group is provided with diodes 6, the diodes 6 are connected in series with the positive electrodes of the diodes 6 to the photovoltaic positive electrodes 5, and the diodes 6 are connected in series with the negative electrodes of the diodes 6 to the photovoltaic negative electrodes 1.
In the specific implementation, the detection probe 2 and the detection terminal 4 are respectively arranged at two ends of the conductive connecting rod 3, at the moment, the detection terminal 4 is opened, because the buzzer is electrified, an alarm is given out, the detection probe 2 is transversely swept across the photovoltaic module unit 7 in working operation, when the photovoltaic module unit 7 is in normal operation, current flows among the battery plates of the assembly, an induction magnetic field exists at the periphery, and when the induction coil transversely cuts the induction magnetic field, according to the electromagnetic induction principle, the detection probe 2 detects the electromotive force signal of the induced electricity, and then transmits the electromotive force signal to the buzzer through the conductive connecting rod 3, because the front state of the buzzer is a power-on state, sound can be generated, and the conductive connecting rod 3 is also transmitted to the other end of the buzzer, therefore, the buzzer is short-circuited, no alarm is given, and the passing induced voltage value is displayed on the detection terminal 4. If diode 6 punctures and burns out, then cause no current to pass through in the circuit of photovoltaic module unit 7, also no current in the inductance coils, then electrically conductive connecting rod 3 also can not transmit the signal of telecommunication, then the normal circular telegram of bee calling organ sends the police dispatch newspaper, the suggestion staff changes the diode. When the photovoltaic module junction box detection device works, if the photovoltaic module junction box 8 is in a horizontal position, the front end rod 10 and the rear end rod 11 do not need to be adjusted, direct detection can be carried out, if the position of the photovoltaic module junction box 8 is not horizontal, namely, a certain angle is formed between the photovoltaic module junction box and the horizontal ground, the angles of the front end rod 10 and the rear end rod 11 are adjusted according to actual conditions, the front end rod 10 is parallel to the photovoltaic module junction box 8 to be detected, and then detection is carried out, so that workers can observe circulation data of electric signals more intuitively and conveniently, and normal detection work under various environmental states is guaranteed.
The utility model discloses under the operating condition of photovoltaic module electricity generation operation, whether there is the electric current to flow on the branch road that accessible electromagnetic induction principle induction goes out the diode place, if no electric current then send alarm information, realize quick screening to trouble subassembly, improve work efficiency to in the course of the work, need not to unpack apart the photovoltaic module terminal box, just can directly detect and screen the trouble diode, convenient and fast and detect the rate of accuracy height.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.
Claims (9)
1. The utility model provides a photovoltaic module terminal box diode on-off detection device, includes photovoltaic module terminal box (8), its characterized in that: the photovoltaic module junction box diode detection device is characterized by further comprising junction box diode detection equipment matched with the photovoltaic module junction box (8), the junction box diode detection equipment comprises a detection probe (2), the detection probe (2) is connected with one end of a conductive connecting rod (3), the other end of the conductive connecting rod (3) is connected with a detection terminal (4), a buzzer is further arranged between the conductive connecting rod (3) and the detection terminal (4), the conductive connecting rod (3) comprises a connecting rod body (31), one end of the connecting rod body (31) is connected with the detection terminal (4), the other end of the connecting rod body is connected with a rear end rod (11), the other end of the rear end rod (11) is provided with a rotating shaft (9), a front end rod (10) is connected with the rear end rod (11) through the rotating shaft (9), and a fixing block (12) is installed on the lower portion of the front end, the fixed block (12) is connected with the detection probe (2).
2. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: the detection probe (2) is a conductive inductance coil.
3. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: detection terminal (4) be the instrument that can show voltage and current signal, detection terminal (4) include current sensor and main control board, current sensor's one end is connected the output of electrically conductive connecting rod (3), current sensor's the other end is connected the main control board, the main control board still is connected with the display screen.
4. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: the main control board adopts an STM series single chip microcomputer, the display screen adopts a digital electronic liquid crystal display screen, and the current sensor adopts a domestic Hall type.
5. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: the detection terminal (4) further comprises a power supply, one end of the power supply is connected with the buzzer, the other end of the power supply is connected with the main control board, and the buzzer is connected with the detection probe (2) through the conductive connecting rod (3).
6. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: photovoltaic module terminal box (8) include photovoltaic module unit (7), it is a plurality of photovoltaic module unit (7) establish ties into the photovoltaic module unit group, the multiunit connect in parallel between the photovoltaic module unit group, every group be provided with diode (6) between the photovoltaic module unit group, it is a plurality of the anodal series connection of diode (6) leads to photovoltaic positive pole (5), and is a plurality of the negative pole series connection of diode (6) leads to photovoltaic negative pole (1).
7. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: one end of the front end rod (10) is provided with a conductive first lantern ring (14), one end of the rear end rod (11) is provided with a conductive second lantern ring (15), the first lantern ring (14) is welded and fixed on the rotating shaft (9), and the second lantern ring (15) is movably sleeved on the rotating shaft (9).
8. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: the rotating shaft (9) is wound with a torsion spring (16), one end of the torsion spring (16) is fixed to the bottom of the front end rod (10), and the other end of the torsion spring (16) is fixed to the bottom of the rear end rod (11).
9. The on-off detection device for the diode of the photovoltaic module junction box is characterized in that: one end of the rotating shaft (9) is closed and provided with a raised head (19), the other end of the rotating shaft (9) is welded with a ratchet wheel (18), a pawl (17) is fixed on the side surface of the rear end rod (11), and the pawl (17) is lapped on the ratchet wheel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920652635.8U CN210427770U (en) | 2019-05-08 | 2019-05-08 | Photovoltaic module terminal box diode break-make detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920652635.8U CN210427770U (en) | 2019-05-08 | 2019-05-08 | Photovoltaic module terminal box diode break-make detection device |
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| Publication Number | Publication Date |
|---|---|
| CN210427770U true CN210427770U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920652635.8U Active CN210427770U (en) | 2019-05-08 | 2019-05-08 | Photovoltaic module terminal box diode break-make detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578256A (en) * | 2021-01-12 | 2021-03-30 | 东莞市庆文贸易有限公司 | Diode high temperature environment operating condition check out test set |
| CN114285376A (en) * | 2022-01-11 | 2022-04-05 | 新疆大学 | Photovoltaic cell panel shelters from monitoring recognition device based on magnetostriction |
-
2019
- 2019-05-08 CN CN201920652635.8U patent/CN210427770U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578256A (en) * | 2021-01-12 | 2021-03-30 | 东莞市庆文贸易有限公司 | Diode high temperature environment operating condition check out test set |
| CN112578256B (en) * | 2021-01-12 | 2022-05-24 | 广东宝元通检测设备有限公司 | Diode high temperature environment operating condition check out test set |
| CN114285376A (en) * | 2022-01-11 | 2022-04-05 | 新疆大学 | Photovoltaic cell panel shelters from monitoring recognition device based on magnetostriction |
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